diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/analysis/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/analysis/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/analysis/device_info.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/analysis/device_info.py new file mode 100644 index 0000000000000000000000000000000000000000..8d5edf1e7fd26d3f902d15af82a3d0c615d20c6f --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/analysis/device_info.py @@ -0,0 +1,216 @@ +import logging +from dataclasses import dataclass +from typing import Optional, Union + +import torch + + +log = logging.getLogger(__name__) + + +@dataclass(frozen=True) +class DeviceInfo: + """ + Theoretical Numbers from data sheet. If two numbers are given, Tensor/Matrix Core vs not, + then the higher number is reported. Sparsity is not considered. + + + Bandwidth numbers are tricky, because there are platform differences that may not show up in the profiler trace. + For example, + """ + + tops: dict[Union[torch.dtype, str], float] + dram_bw_gbs: float + dram_gb: float + + +# Indexing is based on `torch.cuda.get_device_name()` +# TODO investigate profiler support for tf32 and allow device to report correct number when it's turned on. +_device_mapping: dict[str, DeviceInfo] = { + # Source: + # @lint-ignore https://www.nvidia.com/en-us/data-center/h100/ + "NVIDIA H100": DeviceInfo( + tops={ + torch.float64: 67.0, + torch.float32: 67.5, + "torch.tf32": 156.0, + torch.bfloat16: 1979.0, + torch.float16: 1979.0, + torch.float8_e8m0fnu: 3958.0, + torch.float8_e8m0fnu: 3958.0, + torch.float8_e4m3fnuz: 3958.0, + torch.float8_e5m2: 3958.0, + torch.float8_e5m2fnuz: 3958.0, + torch.float8_e8m0fnu: 3958.0, + torch.int8: 3958.0, + }, + dram_bw_gbs=3350, + dram_gb=80, + ), + # Source: + # @lint-ignore https://www.nvidia.com/content/dam/en-zz/Solutions/Data-Center/a100/pdf/ + # nvidia-a100-datasheet-us-nvidia-1758950-r4-web.pdf + "NVIDIA A100": DeviceInfo( + tops={ + torch.float64: 19.5, + torch.float32: 19.5, + torch.bfloat16: 312.5, + torch.float16: 312.5, + # Not in datasheet: float8 + torch.int8: 624.0, + "torch.tf32": 156.0, + }, + dram_bw_gbs=2039.0, + dram_gb=80.0, + ), + # Source: + # @lint-ignore https://resources.nvidia.com/en-us-gpu-resources/l4-tensor-datasheet + "NVIDIA L4": DeviceInfo( + tops={ + # This is a guess, not in datasheet + torch.float64: 15.1, + torch.float32: 30.3, + "torch.tf32": 120.0, + torch.bfloat16: 242.0, + torch.float16: 242.0, + torch.float8_e8m0fnu: 485.0, + torch.float8_e8m0fnu: 485.0, + torch.float8_e4m3fnuz: 485.0, + torch.float8_e5m2: 485.0, + torch.float8_e5m2fnuz: 485.0, + torch.float8_e8m0fnu: 485.0, + torch.int8: 485.0, + }, + dram_bw_gbs=3350, + dram_gb=24, + ), + # Source: + # @lint-ignore https://www.amd.com/content/dam/amd/en/documents\ + # /instinct-tech-docs/product-briefs/amd-instinct-mi350x-gpu-brochure.pdf + "AMD MI350X": DeviceInfo( + tops={ + torch.float64: 72.1, + torch.float32: 144.2, + # not specified, fall back to float32 numbers + "torch.tf32": 144.2, + torch.bfloat16: 2309.6, + torch.float16: 2309.6, + torch.float8_e8m0fnu: 4614.0, + torch.float8_e8m0fnu: 4614.0, + torch.float8_e4m3fnuz: 4614.0, + torch.float8_e5m2: 4614.0, + torch.float8_e5m2fnuz: 4614.0, + torch.float8_e8m0fnu: 4614.0, + torch.int8: 4614.0, + }, + dram_bw_gbs=8000.0, + dram_gb=288.0, + ), + # Source: + # @lint-ignore https://www.amd.com/content/dam/amd/en/documents\ + # /instinct-tech-docs/data-sheets/amd-instinct-mi300a-data-sheet.pdf + "AMD MI300A": DeviceInfo( + tops={ + torch.float64: 122.6, + torch.float32: 122.6, + "torch.tf32": 490.3, + torch.bfloat16: 980.6, + torch.float16: 980.6, + torch.float8_e8m0fnu: 1961.2, + torch.float8_e8m0fnu: 1961.2, + torch.float8_e4m3fnuz: 1961.2, + torch.float8_e5m2: 1961.2, + torch.float8_e5m2fnuz: 1961.2, + torch.float8_e8m0fnu: 1961.2, + torch.int8: 1961.2, + }, + dram_bw_gbs=5300.0, + dram_gb=128.0, + ), + # Source: + # @lint-ignore https://www.amd.com/content/dam/amd/en/documents/\ + # instinct-tech-docs/data-sheets/amd-instinct-mi300x-data-sheet.pdf + "AMD MI300X": DeviceInfo( + tops={ + torch.float64: 163.4, + torch.float32: 163.4, + "torch.tf32": 653.7, + torch.bfloat16: 1307.4, + torch.float16: 1307.4, + torch.float8_e8m0fnu: 2614.9, + torch.float8_e8m0fnu: 2614.9, + torch.float8_e4m3fnuz: 2614.9, + torch.float8_e5m2: 2614.9, + torch.float8_e5m2fnuz: 2614.9, + torch.float8_e8m0fnu: 2614.9, + torch.int8: 2614.9, + }, + dram_bw_gbs=5300.0, + dram_gb=192.0, + ), + # Source: + # @lint-ignore https://www.amd.com/content/dam/amd/\ + # en/documents/instinct-business-docs/product-briefs/instinct-mi210-brochure.pdf + "AMD MI210X": DeviceInfo( + tops={ + torch.float64: 45.3, + torch.float32: 45.3, + # not specified, fall back to float32 numbers + "torch.tf32": 45.3, + torch.bfloat16: 181.0, + torch.float16: 181.0, + # not specified, fall back to float16 numbers + torch.float8_e8m0fnu: 181.0, + torch.float8_e8m0fnu: 181.0, + torch.float8_e4m3fnuz: 181.0, + torch.float8_e5m2: 181.0, + torch.float8_e5m2fnuz: 181.0, + torch.float8_e8m0fnu: 181.0, + torch.int8: 181.0, + }, + # pcie4.0x16 + dram_bw_gbs=1600.0, + dram_gb=64.0, + ), +} +_device_mapping["AMD INSTINCT MI350X"] = _device_mapping["AMD MI350X"] +_device_mapping["AMD INSTINCT MI300X"] = _device_mapping["AMD MI300X"] +_device_mapping["AMD INSTINCT MI210X"] = _device_mapping["AMD MI210X"] + + +def lookup_device_info(name: str) -> Optional[DeviceInfo]: + """ + Problem: when diffing profiles between amd and nvidia, we don't have access to the device information + of the other one. Also, since the analysis is static, we should be able to do it on another device unrelated + to the recorded device. Therefore, _device_mapping statically contains the information for lots of devices. + If one is missing, please run DeviceInfo.get_device_info() and add it to _device_mapping. + name (str): name of the device to lookup. Should map onto torch.cuda.get_device_name(). + """ + return _device_mapping.get(name) + + +def datasheet_tops(dtype: torch.dtype, is_tf32: bool = False) -> Optional[float]: + """ + Get the theoretical TFLOPS of the device for a given dtype. This can throw an exception if the device + is not in the datasheet list above. + """ + name: Optional[str] = torch.cuda.get_device_name() + if name is None: + log.info("No device found, returning None") + return None + device_info = lookup_device_info(name) + if device_info is None: + log_str = f"Device {name} not in datasheet, returning None" + log.info(log_str) + return None + if dtype not in device_info.tops: + log.info( + "Device %s does not have a datasheet entry for %s, returning None", + name, + dtype, + ) + return None + + return device_info.tops[ + "torch.tf32" if dtype == torch.float32 and is_tf32 else dtype + ] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/analysis/profile_analysis.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/analysis/profile_analysis.py new file mode 100644 index 0000000000000000000000000000000000000000..6a6ec39003bdb2447b72c9aed892e1db01474be0 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/analysis/profile_analysis.py @@ -0,0 +1,823 @@ +import json +import logging +import math +from collections import defaultdict +from collections.abc import Callable +from dataclasses import dataclass +from typing import Any, Optional, Union + +import torch +from torch._inductor.analysis.device_info import DeviceInfo, lookup_device_info +from torch._inductor.utils import tabulate_2d, zip_dicts +from torch.utils import _pytree as pytree +from torch.utils._ordered_set import OrderedSet +from torch.utils.flop_counter import flop_registry + + +log = logging.getLogger(__name__) + + +ATEN_PREFIX = "aten::" + + +@dataclass +class ProfileEvent: + category: str + key: str + self_device_time_ms: float + # the benchmark is run multiple times and we average the count across all the + # runs. It should be an integer but define a float just in case. + count: float + + +# adapters convert the json trace into a format that works with flops_counter +ArgsType = tuple[tuple[Any, ...], dict[Any, Any]] +AdapterType = Callable[[tuple[Any, ...], tuple[Any, ...]], ArgsType] +adapters_map: dict[str, AdapterType] = {} + + +def parse_list(lst: str) -> list[int]: + lst = lst.replace("[", "").replace("]", "") + substrings = lst.split(",") + + return [int(substring.strip()) for substring in substrings] + + +def register_adapter( + aten: Union[str, list[str]], +) -> Callable[ + [AdapterType], + AdapterType, +]: + def decorator(func: AdapterType) -> AdapterType: + # pyrefly: ignore [unknown-name] + global _adapters_map + + if isinstance(aten, str): + adapters_map[aten] = func + else: + for at in aten: + adapters_map[at] = func + return func + + return decorator + + +@register_adapter(["_slow_conv2d_forward"]) +def _slow_conv2d_adapter( + shapes: tuple[Any, ...], concrete: tuple[Any, ...] +) -> tuple[tuple[Any], dict[Any, Any]]: + tmp = list(shapes) + tmp.append(False) + tmp2 = list(concrete) + if len(tmp2) < 5: + raise ParseException("slow conv2d has less than 5 concrete inputs") + tmp2[3] = tmp2[4] + return conv_adapter(tuple(tmp), tuple(tmp2)) + + +@register_adapter( + ["convolution", "_convolution", "cudnn_convolution", "convolution_overrideable"] +) +def conv_adapter( + shapes: tuple[Any, ...], concrete: tuple[Any, ...] +) -> tuple[tuple[Any], dict[Any, Any]]: + tmp = list(shapes) + if len(tmp) == 4: + transposed = False + elif len(tmp) > 6: + transposed = bool(tmp[6]) + tmp[6] = transposed + else: + raise ParseException(f"Convolution has the wrong number of inputs: {len(tmp)}") + + kwargs: dict[Any, Any] = {} + if not transposed: + # calculate output shape if not transposed. + def conv_out_dims(x: int, kernel: int, stride: int) -> int: + return (x - kernel) // stride + 1 + + stride = parse_list(concrete[3]) + inp = shapes[0] + w = shapes[1] + out_x_y = [conv_out_dims(*args) for args in zip(inp[2:], w[2:], stride)] + out = [inp[0], w[0]] + out_x_y # we only need the xy values + kwargs["out_val"] = out + + return tuple(tmp), kwargs + + +def default_adapter( + shapes: tuple[Any], concrete: tuple[Any] +) -> tuple[tuple[Any], dict[Any, Any]]: + return shapes, {} + + +@register_adapter("addmm") +def addmm_adapter( + shapes: tuple[Any], concrete: tuple[Any] +) -> tuple[tuple[Any], dict[Any, Any]]: + tmp = list(shapes)[:3] + return tuple(tmp), {} + + +@register_adapter("bmm") +def bmm_adapter( + shapes: tuple[Any], concrete: tuple[Any] +) -> tuple[tuple[Any], dict[Any, Any]]: + tmp = list(shapes) + return tuple(tmp[:2]), {} + + +@register_adapter("baddbmm") +def baddbmm_adapter( + shapes: tuple[Any], concrete: tuple[Any] +) -> tuple[tuple[Any], dict[Any, Any]]: + tmp = list(shapes)[:3] + return tuple(tmp), {} + + +@register_adapter("mm") +def mm_adapter( + shapes: tuple[Any], concrete: tuple[Any] +) -> tuple[tuple[Any], dict[Any, Any]]: + return shapes, {} + + +def _parse_kernel_name(name: str) -> Optional[str]: + """ + parse the name of the kernel from the event name. + """ + if name.startswith(ATEN_PREFIX): + return name[len(ATEN_PREFIX) :] + elif "conv" in name: + return "convolution" + elif "addmm" in name: + return "addmm" + elif "bmm" in name: + return "bmm" + elif "baddbmm" in name: + return "baddbmm" + elif "_mm" in name: + return "mm" + else: + return None + + +def _calculate_flops(event: dict[str, Any]) -> int: + """ + This function has to parse the kernel name, which is error prone. There doesn't seem to be another solution that + will support all the different backends that can generate kernels, so make sure to update this function when new + ops and backends are desired. + """ + name = event["name"] + if "kernel_flop" in event["args"] and event["args"]["kernel_flop"] != 0: + return event["args"]["kernel_flop"] + op_name = _parse_kernel_name(name) + if op_name is None: + return 0 + + op_obj = getattr(torch.ops.aten, op_name, None) + if op_obj is None or op_obj not in flop_registry: + return 0 + + flop_function = flop_registry[op_obj] + + if "Input Dims" not in event["args"] or "Concrete Inputs" not in event["args"]: + return 0 + input_shapes = event["args"]["Input Dims"] + concrete = event["args"]["Concrete Inputs"] + if op_name in adapters_map: + try: + args, kwargs = adapters_map[op_name](input_shapes, concrete) + except ParseException as e: + msg = f"Failed to parse {op_name} with {e}" + log.warning(msg) + return 0 + else: + try: + args, kwargs = default_adapter(input_shapes, concrete) + except ParseException as e: + msg = f"Failed to parse {op_name} with {e}" + log.warning(msg) + return 0 + return flop_function(*args, **kwargs) + + +def _get_size_from_string(type_string: str) -> int: + if not hasattr(torch, type_string): + return 1 + else: + return getattr(torch, type_string).itemsize + + +def _default_estimate_gb(event: dict[str, Any]) -> float: + sizes_and_types = zip(event["args"]["Input Dims"], event["args"]["Input type"]) + bw = 0 + for size, typ in sizes_and_types: + isize = _get_size_from_string(typ) + bw += isize * math.prod(pytree.tree_flatten(size)[0]) + return bw / 1e9 + + +def _estimate_gb(event: dict[str, Any]) -> float: + """ + Our best effort to estimate the gb, should be refactored soon with MemoryCounter. + """ + name = event["name"] + if "kernel_num_gb" in event["args"] and event["args"]["kernel_num_gb"] != 0: + return event["args"]["kernel_num_gb"] + if "Input type" not in event["args"] or "Input Dims" not in event["args"]: + return 0 + op_name = _parse_kernel_name(name) + if op_name is None: + return _default_estimate_gb(event) + + op_obj = getattr(torch.ops.aten, op_name, None) + if op_obj is None: + return _default_estimate_gb(event) + + if "Input Dims" not in event["args"] or "Concrete Inputs" not in event["args"]: + return _default_estimate_gb(event) + input_shapes = event["args"]["Input Dims"] + + # NOTE these will be refactored into a similar object to FlopCounter soon + def mm_formula(M: int, N: int, K: int, size: int) -> int: + return 2 * (M * K + N * K + M * N) * size + + if op_name == "addmm": + add_in_size = math.prod(pytree.tree_flatten(input_shapes[0])[0]) + add_type_size = _get_size_from_string(event["args"]["Input type"][0]) + M = input_shapes[1][0] + N = input_shapes[1][1] + assert input_shapes[1][1] == input_shapes[2][0] + K = input_shapes[2][1] + mul_type_size = _get_size_from_string(event["args"]["Input type"][1]) + return (mm_formula(M, N, K, mul_type_size) + add_in_size * add_type_size) / 1e9 + elif op_name == "mm": + M = input_shapes[0][0] + N = input_shapes[0][1] + assert input_shapes[0][1] == input_shapes[1][0] + K = input_shapes[1][1] + type_size = _get_size_from_string(event["args"]["Input type"][0]) + return mm_formula(M, N, K, type_size) / 1e9 + elif op_name == "baddbmm": + add_in_size = math.prod(pytree.tree_flatten(input_shapes[0])[0]) + add_type_size = _get_size_from_string(event["args"]["Input type"][0]) + B = input_shapes[0][0] + M = input_shapes[1][1] + N = input_shapes[1][2] + K = input_shapes[2][2] + mul_type_size = _get_size_from_string(event["args"]["Input type"][1]) + return ( + B * mm_formula(M, N, K, mul_type_size) + add_in_size * add_type_size + ) / 1e9 + elif op_name == "bmm": + add_in_size = math.prod(pytree.tree_flatten(input_shapes[0])[0]) + add_type_size = _get_size_from_string(event["args"]["Input type"][0]) + B = input_shapes[0][0] + M = input_shapes[0][1] + N = input_shapes[0][2] + K = input_shapes[1][2] + mul_type_size = _get_size_from_string(event["args"]["Input type"][1]) + return ( + B * mm_formula(M, N, K, mul_type_size) + add_in_size * add_type_size + ) / 1e9 + elif op_name in [ + "convolution", + "_convolution", + "cudnn_convolution", + "_slow_conv2d_forward", + ]: + concrete = event["args"]["Concrete Inputs"] + + def conv_out_dim(x: int, kernel: int, stride: int) -> int: + return (x - kernel) // stride + 1 + + stride = parse_list( + concrete[3] if op_name != "_slow_conv2d_forward" else concrete[4] + ) + inp = input_shapes[0] + w = input_shapes[1] + out_x_y = [conv_out_dim(*args) for args in zip(inp[2:], w[2:], stride)] + out = [inp[0], w[0]] + out_x_y + # each output element reads in * w * w chunk + input_reads = out[0] * out[1] * out[2] * out[3] * inp[1] * w[2] * w[3] + # Assume weights are in cache, so only read once + weight_reads = w[0] * w[1] * w[2] * w[3] + return (input_reads + weight_reads) / 1e9 + + return _default_estimate_gb(event) + + +def _create_extern_mapping( + data: dict[str, Any], +) -> defaultdict[int, list[dict[str, Any]]]: + """ + compute a mapping from external ids to non kernels, which contain the information we need to estimate flops etc + """ + extern_mapping: defaultdict[int, list[dict[str, Any]]] = defaultdict(list) + for event in data["traceEvents"]: + if ( + "args" not in event + or "External id" not in event["args"] + or event["cat"] != "cpu_op" + ): + continue + if len(extern_mapping[event["args"]["External id"]]) > 0: + raise ParseException("duplicate external id in event") + extern_mapping[event["args"]["External id"]].append(event) + return extern_mapping + + +def _augment_trace_helper(data: dict[str, Any]) -> dict[str, Any]: + extern_mapping = _create_extern_mapping(data) + + for event in data["traceEvents"]: + if "cat" not in event or event["cat"] != "kernel": + continue + if "args" not in event: + raise ParseException(f"kernel has no args: {event}") + if "External id" not in event["args"]: + event_str = f"kernel has no External id: {event}" + log.info(event_str) + continue + + external_op = extern_mapping[event["args"]["External id"]][0] + flops = _calculate_flops(external_op) + if flops == 0: + flops = _calculate_flops(event) + external_op["args"]["kernel_flop"] = flops + external_op["args"]["kernel_num_gb"] = _estimate_gb(external_op) + event["args"]["kernel_flop"] = external_op["args"]["kernel_flop"] + event["args"]["kernel_num_gb"] = external_op["args"]["kernel_num_gb"] + return data + + +_dtype_map = { + "float": torch.float, + "float32": torch.float, + "int": torch.int, + "int8": torch.int8, + "int16": torch.int16, + "int32": torch.int, + "long": torch.long, + "long int": torch.long, + "bfloat16": torch.bfloat16, + "float16": torch.float16, + "float64": torch.double, +} + + +@dataclass(frozen=True) +class KernelStats: + flops: int + bw: float + latency: float # us + achieved_flops: float + achieved_bandwidth: float + + +KernelNameMap = defaultdict[str, OrderedSet[KernelStats]] + + +@dataclass(frozen=False) +class Device: + name: str + index: int + info: Optional[DeviceInfo] + stats: KernelNameMap + + def __repr__(self) -> str: + return f"Device({self.name}, {self.index}): {self.info}" + + +DeviceMap = dict[int, Device] +Table = tuple[list[str], dict[str, list[str]]] + + +class JsonProfile: + _devices: DeviceMap + + def __init__( + self, + path: str, + benchmark_name: Optional[str] = None, + dtype: Optional[Union[torch.dtype, str]] = None, + ): + """ + Convenience class for running common operations on chrome/perfetto json traces. + """ + self.path = path + with open(path) as f: + self.data = json.load(f) + self.events = self.data["traceEvents"] + self.benchmark_name = benchmark_name + if dtype is None: + self.dtype = None + elif isinstance(dtype, torch.dtype): + # pyrefly: ignore [bad-assignment] + self.dtype = dtype + else: + # pyrefly: ignore [bad-assignment] + self.dtype = _dtype_map.get(dtype) + self._create_devices() + + def convert_dtype(self, event: dict[str, Any]) -> Optional[torch.dtype]: + """ + Each op has a list of dtypes for each input arg. We need to convert these into a single dtype for flop estimation. + Issues: + - converting the strings to concrete torch.dtypes + - What if we have float32, float, float16 all in the inputs? Our choice is to use the largest buffer dtype. + """ + + if ( + "Input Dims" not in event["args"] + or "Input type" not in event["args"] + or "Concrete Inputs" not in event["args"] + ): + if "bfloat16" in event["name"]: + return torch.bfloat16 + elif "float16" in event["name"]: + return torch.float16 + else: + return None + + input_sizes = event["args"]["Input Dims"] + input_types = event["args"]["Input type"] + concrete_inputs = event["args"]["Concrete Inputs"] + assert len(input_sizes) == len(input_types) + assert len(input_types) == len(concrete_inputs) + + if len(input_sizes) == 0: + raise RuntimeError("Empty input_sizes and input_types") + + biggest_size = 0 + biggest_index = 0 + for i in range(len(input_sizes)): + if concrete_inputs[i] != "": + # concrete inputs are usually small tensors, so we can just skip + continue + my_size = input_sizes[i] + total_size = sum(parse_list(my_size)) + if total_size > biggest_size: + biggest_size = total_size + biggest_index = i + ret_type = input_types[biggest_index] + if ret_type in _dtype_map: + return _dtype_map[ret_type] + raise RuntimeError(f"Unknown type: {ret_type}. Please add to _dtype_map.") + + def _create_devices(self) -> None: + self._devices = {} + for dev in self.data["deviceProperties"]: + name = dev["name"] + device_info = lookup_device_info(name) + + if device_info is None: + log.info( + "Unsupported device in profile: %s, please consider contributing to _device_mapping.", + name, + ) + self._devices[dev["id"]] = Device( + name, dev["id"], device_info, defaultdict(OrderedSet) + ) + + def calculate_flops(self, event: dict[str, Any]) -> int: + return _calculate_flops(event) + + def estimate_gb(self, event: dict[str, Any]) -> float: + return _estimate_gb(event) + + def augment_trace(self) -> None: + self.data = _augment_trace_helper(self.data) + + def _compute_stats(self) -> None: + """populates the name -> stats map""" + for event in self.events: + if "cat" not in event or "args" not in event or event["cat"] != "kernel": + continue + if "device" not in event["args"]: + continue + dev_tmp = event["args"]["device"] + if dev_tmp not in self._devices: + continue + dev = self._devices[event["args"]["device"]] + + dur = event["dur"] # us + if "kernel_flop" in event["args"]: + assert dur != 0 + # 1,000,000us/s * flop / us + op_flops = event["args"]["kernel_flop"] / (dur / 1e6) + else: + op_flops = 0 + + if "kernel_num_gb" in event["args"]: + assert dur != 0 + # 1,000,000us/s * gb = gb/s + op_gbps = event["args"]["kernel_num_gb"] / (dur / 1e6) + else: + op_gbps = 0 + + if dev.info is not None: + dtype = self.convert_dtype(event) or self.dtype + if dtype is None: + raise RuntimeError( + "dtype is not found on tensor and default dtype is not set" + ) + achieved_flops = 100 * op_flops / (1e12 * dev.info.tops[dtype]) + achieved_bandwidth = 100 * op_gbps / dev.info.dram_bw_gbs + else: + achieved_flops = 0 + achieved_bandwidth = 0 + + if "name" not in event["args"]: + continue + dev.stats[event["name"]].add( + KernelStats( + flops=op_flops, + bw=op_gbps, + latency=dur, + achieved_bandwidth=achieved_bandwidth, + achieved_flops=achieved_flops, + ) + ) + + def _create_single_table(self, dev: Device) -> Table: + """Create a table with the devices mapped to indices.""" + headers = [ + "Kernel Name", + "Kernel Count", + "FLOPS", + "Kernel Reads (GB)", + "Dur (us)", + "Achieved FLOPS %", + "Achieved Bandwidth %", + ] + rows: dict[str, list[str]] = {} + + def safe_div_format(x: float, y: float) -> str: + if y == 0: + return "0.0" + return f"{x / y:.4f}" + + for kernel_name, stats_set in dev.stats.items(): + ker_count = 0 + flops = 0 + flops_count = 0 + achieved_flops = 0.0 + bw = 0.0 + bw_count = 0 + achieved_bandwidth = 0.0 + latency = 0.0 + for stats in stats_set: + if stats.flops != 0: + flops += stats.flops + achieved_flops += stats.achieved_flops + flops_count += 1 + if stats.bw != 0: + bw += stats.bw + achieved_bandwidth += stats.achieved_bandwidth + bw_count += 1 + latency += stats.latency + ker_count += 1 + assert ker_count != 0 + rows[kernel_name] = [ + str(ker_count), + safe_div_format(flops, flops_count), + safe_div_format(bw, bw_count), + safe_div_format(latency, ker_count), + safe_div_format(achieved_flops, flops_count), + safe_div_format(achieved_bandwidth, bw_count), + ] + + return headers, rows + + def _create_tables(self, devs: DeviceMap) -> dict[int, Table]: + return {idx: self._create_single_table(dev) for idx, dev in devs.items()} + + def _combine_tables( + self, table1: Table, table1_name: str, table2: Table, table2_name: str + ) -> Table: + new_headers = ( + ["Kernel Name"] + + [f"{table1_name} {head}" for head in table1[0][1:]] + + [f"{table2_name} {head}" for head in table2[0][1:]] + ) + t1_length = len(table1[0][1:]) + t2_length = len(table2[0][1:]) + new_rows = {} + + for key, row1, row2 in zip_dicts( + table1[1], + table2[1], + d1_default=["Empty"] * t1_length, + d2_default=["Empty"] * t2_length, + ): + assert row1 is not None + assert row2 is not None + new_rows[key] = row1 + row2 + return new_headers, new_rows + + def report( + self, other: Optional["JsonProfile"] = None, name_limit: int = 40 + ) -> str: + def create_ret( + table_headers: list[str], table_rows: dict[str, list[str]] + ) -> str: + table_flattened = [ + [kernel_name[:name_limit], *kernel_vals] + for kernel_name, kernel_vals in table_rows.items() + ] + return tabulate_2d(table_flattened, headers=table_headers) + + if other is not None: + self._compute_stats() + other._compute_stats() + + self_tables = self._create_tables(self._devices) + other_tables = self._create_tables(other._devices) + + self_name = ( + self.benchmark_name if self.benchmark_name is not None else "Table 1" + ) + other_name = ( + other.benchmark_name if other.benchmark_name is not None else "Table 2" + ) + + ret = [] + assert self._devices.keys() == other._devices.keys() + for device_idx, t1, t2 in zip_dicts( + self_tables, other_tables, d1_default=None, d2_default=None + ): + assert t1 is not None + assert t2 is not None + table_headers, table_rows = self._combine_tables( + t1, self_name, t2, other_name + ) + tab_string = create_ret(table_headers, table_rows) + # pyrefly: ignore [bad-argument-type] + ret.append(f"{self._devices[device_idx]}:\n{tab_string}") + return "\n".join(ret) + self._compute_stats() + + self_tables = self._create_tables(self._devices) + + ret = [] + for idx, table in self_tables.items(): + table_headers, table_rows = table + tab_string = create_ret(table_headers, table_rows) + # pyrefly: ignore [bad-argument-type] + ret.append(f"{self._devices[idx]}:\n{tab_string}") + return "\n".join(ret) + + def dump(self, out: str) -> None: + with open(out, "w") as f: + json.dump(self.data, f) + + def combine_with(self, other: "JsonProfile") -> "JsonProfile": + """ + Combine this profile with another profile by merging their trace events. + Returns a new JsonProfile object with combined data. + """ + # Create a new combined data structure + combined_data = { + "traceEvents": self.data["traceEvents"] + other.data["traceEvents"], + "deviceProperties": self.data.get("deviceProperties", []), + } + + # Merge device properties, avoiding duplicates + other_device_props = other.data.get("deviceProperties", []) + existing_device_ids = OrderedSet( + [dev["id"] for dev in combined_data["deviceProperties"]] + ) + + for device_prop in other_device_props: + if device_prop["id"] not in existing_device_ids: + combined_data["deviceProperties"].append(device_prop) + + # Copy any other top-level properties from the first profile + for key, value in self.data.items(): + if key not in combined_data: + combined_data[key] = value + + import os + + # Create a temporary file to write the combined data + import tempfile + + with tempfile.NamedTemporaryFile( + mode="w", suffix=".json", delete=False + ) as tmp_file: + json.dump(combined_data, tmp_file) + tmp_path = tmp_file.name + + try: + # Create new JsonProfile from the combined data + combined_profile = JsonProfile( + tmp_path, + benchmark_name=f"{self.benchmark_name or 'Profile1'}_+_{other.benchmark_name or 'Profile2'}", + dtype=self.dtype or other.dtype, + ) + return combined_profile + finally: + # Clean up temporary file + os.unlink(tmp_path) + + +class ParseException(RuntimeError): + pass + + +def main() -> None: + """ + Main function for the profile analysis script. + """ + import argparse + + parser = argparse.ArgumentParser() + parser.add_argument( + "--diff", + nargs=5, + metavar=( + "input_file1", + "name1", + "input_file2", + "name2", + "dtype", + ), + help="Two json traces to compare with, specified as ", + ) + parser.add_argument( + "--name_limit", + type=int, + help="the maximum name size in the final report", + ) + parser.add_argument( + "--augment_trace", + "-a", + nargs=3, + metavar=("input_file", "output_file", "dtype"), + help="Augment a trace with inductor meta information. Provide input and output file paths.", + ) + parser.add_argument( + "--analysis", + nargs=2, + metavar=("input_file", "dtype"), + help="Run analysis on a single trace, specified as ", + ) + parser.add_argument( + "--combine", + nargs="+", + metavar=("input_files", "output_file"), + help="Combine multiple profiles into a single profile by merging trace events. Specify as \ + [input_file3 ...] . The last argument is the output file, all preceding arguments are \ +input files to combine.", + ) + args = parser.parse_args() + + if args.diff: + p1 = JsonProfile(args.diff[0], args.diff[1], dtype=args.diff[4]) + p1.augment_trace() + p2 = JsonProfile(args.diff[2], args.diff[3], dtype=args.diff[4]) + p2.augment_trace() + if args.name_limit: + print(p1.report(p2, name_limit=args.name_limit)) + else: + print(p1.report(p2)) + if args.analysis: + p1 = JsonProfile( + args.analysis[0], + dtype=args.analysis[1], + ) + p1.augment_trace() + if args.name_limit: + print(p1.report(name_limit=args.name_limit)) + else: + print(p1.report()) + if args.augment_trace: + p = JsonProfile(args.augment_trace[0], dtype=args.augment_trace[2]) + p.augment_trace() + p.dump(args.augment_trace[1]) + if args.combine: + input_files = args.combine[:-1] # All arguments except the last one + output_file = args.combine[-1] # Last argument is the output file + + if len(input_files) < 2: + print("Error: At least 2 input files are required for combining") + return + + # Load the first profile + combined = JsonProfile(input_files[0], dtype=None) + + # Iteratively combine with all other profiles + for input_file in input_files[1:]: + profile = JsonProfile(input_file, dtype=None) + combined = combined.combine_with(profile) + + combined.dump(output_file) + print(f"Successfully combined {', '.join(input_files)} into {output_file}") + + +if __name__ == "__main__": + main() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_MMRankingA100.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_MMRankingA100.py new file mode 100644 index 0000000000000000000000000000000000000000..7ebf134c83d7c597dae05f572f6f6f7f702c9f6e --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_MMRankingA100.py @@ -0,0 +1,296 @@ +# flake8: noqa: B950 +# fmt: off +# This file was generated by AutoHeuristic. Do not modify it manually! +# To regenerate this file, take a look at the steps in the README.md file inside torchgen/_autoheuristic/mm/ +from typing import List, Optional, Tuple + +from torch._inductor.autoheuristic.autoheuristic_utils import ( + AHContext, + AHMetadata, + Choice, +) +from torch._inductor.autoheuristic.learnedheuristic_interface import ( + LearnedHeuristicDecision, +) + + +class MMRankingA100(LearnedHeuristicDecision): + + def __init__(self) -> None: + self.choices: list[Choice] = [] + self.fill_choices() + + def check_precondition(self, metadata: AHMetadata, context: AHContext,) -> bool: + return ( + metadata.name == self.get_name() + and metadata.shared_memory == 166912 + and str(metadata.device_capa) == "(8, 0)" + ) + + def get_confidence_threshold(self) -> float: + return 0.0 + + def get_choice(self, idx: int) -> Optional[str]: + if idx < len(self.choices): + return self.choices[idx] + return None + + def fill_choices(self) -> None: + self.choices.append('extern_mm') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=128_BLOCK-N=16_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=128_BLOCK-N=32_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=128_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=128_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=128_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=128_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=128_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=16_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=16_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=16_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=32_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=32_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=32_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=64_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=32_numstages=5_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=128_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=128_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=16_numstages=5_numwarps=1') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=32_numstages=1_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=32_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=32_numstages=3_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=32_numstages=4_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=32_numstages=5_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=64_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=16_numstages=5_numwarps=1') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=32_numstages=5_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=32_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=16_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=16_numstages=1_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=16_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=16_numstages=5_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=32_numstages=1_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=64_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=32_BLOCK-N=16_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=32_BLOCK-N=16_numstages=5_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=32_BLOCK-N=64_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=64_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=64_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=16_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=32_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=128_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=16_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=16_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=32_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=32_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=32_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=32_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=64_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=64_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=128_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=16_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=16_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=16_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=32_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=32_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=64_numstages=5_numwarps=4') + + def get_name(self) -> str: + return 'mm' + + def get_best_choices(self, context: AHContext) -> Optional[list[tuple[float, int]]]: + if context.get_value('arith_intensity') <= 52.6245059967041: + if context.get_value('n') <= 34.0: + if context.get_value('n') <= 18.0: + if context.get_value('k*n') <= 312.0: + return [(0.093, 12), (0.081, 16), (0.081, 148), (0.070, 10), (0.070, 17), (0.070, 149), (0.070, 151), (0.070, 150), (0.070, 14), (0.058, 11), (0.058, 15), (0.058, 13), (0.058, 122), (0.047, 121), (0.035, 123), (0.012, 92)] + else: + if context.get_value('k') <= 40.0: + return [(0.083, 42), (0.083, 46), (0.083, 44), (0.083, 40), (0.083, 128), (0.067, 45), (0.067, 43), (0.067, 41), (0.067, 169), (0.067, 171), (0.067, 168), (0.067, 129), (0.067, 170), (0.033, 103), (0.017, 121)] + else: + return [(0.112, 137), (0.104, 136), (0.101, 0), (0.081, 1), (0.073, 135), (0.069, 67), (0.066, 187), (0.058, 41), (0.050, 71), (0.046, 68), (0.046, 70), (0.031, 44), (0.027, 43), (0.027, 170), (0.019, 189), (0.019, 188), (0.015, 169), (0.015, 171), (0.012, 115), (0.012, 168), (0.012, 69), (0.004, 103)] + else: + if context.get_value('mat1_stride_0') <= 20.0: + return [(0.069, 0), (0.059, 157), (0.059, 22), (0.059, 153), (0.059, 155), (0.059, 25), (0.059, 23), (0.059, 19), (0.044, 21), (0.044, 18), (0.044, 152), (0.044, 158), (0.044, 154), (0.044, 156), (0.044, 20), (0.044, 124), (0.044, 24), (0.030, 125), (0.029, 126), (0.015, 97), (0.015, 95), (0.015, 96), (0.010, 2), (0.010, 75)] + else: + if context.get_value('k') <= 68.0: + return [(0.087, 72), (0.087, 74), (0.087, 73), (0.086, 76), (0.077, 75), (0.067, 192), (0.058, 190), (0.048, 47), (0.048, 193), (0.048, 49), (0.048, 51), (0.048, 191), (0.038, 53), (0.019, 133), (0.019, 50), (0.019, 175), (0.019, 172), (0.019, 48), (0.019, 174), (0.010, 173), (0.010, 177), (0.010, 52), (0.010, 54), (0.010, 178), (0.010, 176)] + else: + return [(0.154, 52), (0.154, 72), (0.102, 75), (0.087, 49), (0.087, 73), (0.086, 51), (0.057, 176), (0.045, 2), (0.038, 191), (0.038, 178), (0.038, 190), (0.029, 173), (0.029, 76), (0.026, 138), (0.013, 139), (0.013, 140), (0.003, 0)] + else: + if context.get_value('k') <= 35.0: + if context.get_value('k') <= 18.0: + if context.get_value('m*n') <= 19505152.0: + return [(0.151, 159), (0.140, 160), (0.129, 164), (0.055, 127), (0.051, 29), (0.044, 161), (0.044, 147), (0.040, 146), (0.040, 31), (0.037, 145), (0.026, 28), (0.022, 90), (0.022, 93), (0.022, 94), (0.022, 100), (0.022, 125), (0.022, 158), (0.022, 157), (0.011, 87), (0.011, 88), (0.011, 89), (0.011, 91), (0.011, 95), (0.011, 96), (0.011, 98), (0.011, 99)] + else: + return [(0.069, 7), (0.069, 5), (0.067, 147), (0.066, 8), (0.061, 145), (0.058, 146), (0.052, 124), (0.049, 29), (0.049, 159), (0.046, 31), (0.043, 157), (0.041, 9), (0.041, 4), (0.040, 6), (0.035, 164), (0.035, 160), (0.026, 158), (0.017, 125), (0.017, 28), (0.017, 32), (0.017, 162), (0.017, 27), (0.017, 30), (0.017, 161), (0.009, 33), (0.009, 26), (0.009, 163), (0.006, 0)] + else: + if context.get_value('n') <= 68.0: + return [(0.101, 182), (0.101, 59), (0.088, 57), (0.076, 184), (0.076, 61), (0.076, 179), (0.076, 62), (0.076, 58), (0.063, 180), (0.063, 60), (0.051, 56), (0.050, 181), (0.025, 130), (0.025, 177), (0.025, 183), (0.013, 178), (0.013, 55)] + else: + return [(0.089, 180), (0.079, 60), (0.066, 35), (0.066, 181), (0.066, 38), (0.066, 58), (0.066, 179), (0.066, 57), (0.062, 184), (0.053, 37), (0.044, 166), (0.040, 55), (0.040, 39), (0.040, 36), (0.040, 165), (0.040, 167), (0.027, 177), (0.027, 34), (0.022, 159)] + else: + if context.get_value('m*n') <= 309760.0: + return [(0.298, 0), (0.097, 140), (0.080, 83), (0.072, 86), (0.044, 84), (0.036, 178), (0.036, 117), (0.036, 82), (0.032, 120), (0.032, 85), (0.028, 119), (0.024, 130), (0.024, 109), (0.020, 108), (0.020, 118), (0.012, 104), (0.012, 116), (0.012, 141), (0.012, 144), (0.008, 105), (0.008, 106), (0.008, 111), (0.008, 114), (0.008, 107), (0.008, 132), (0.004, 101), (0.004, 102), (0.004, 110), (0.004, 112), (0.004, 113), (0.004, 131)] + else: + if context.get_value('n') <= 72.0: + return [(0.227, 77), (0.118, 78), (0.102, 194), (0.086, 80), (0.059, 57), (0.054, 81), (0.049, 196), (0.048, 197), (0.048, 59), (0.043, 79), (0.032, 195), (0.027, 180), (0.022, 3), (0.021, 141), (0.016, 60), (0.016, 142), (0.011, 183), (0.011, 0), (0.011, 144)] + else: + return [(0.140, 186), (0.132, 185), (0.109, 63), (0.085, 65), (0.078, 37), (0.077, 35), (0.062, 197), (0.047, 194), (0.046, 165), (0.046, 57), (0.039, 78), (0.039, 79), (0.039, 66), (0.039, 64), (0.016, 195), (0.008, 159)] + else: + if str(context.get_value('using_tf32')) != 'False': + if context.get_value('m*n') <= 815360.0: + if context.get_value('k') <= 1184.0: + return [(0.218, 140), (0.205, 0), (0.154, 144), (0.115, 141), (0.051, 185), (0.051, 104), (0.039, 78), (0.038, 116), (0.026, 165), (0.026, 130), (0.026, 178), (0.013, 57), (0.013, 195), (0.013, 167), (0.013, 186)] + else: + return [(0.901, 0), (0.030, 144), (0.030, 134), (0.016, 3), (0.006, 78), (0.006, 77), (0.002, 57), (0.002, 194), (0.002, 59), (0.002, 60), (0.002, 143)] + else: + if context.get_value('arith_intensity') <= 187.23922729492188: + if context.get_value('mat1_stride_0') <= 198.0: + return [(0.273, 63), (0.158, 37), (0.152, 35), (0.127, 57), (0.097, 165), (0.053, 185), (0.031, 0), (0.028, 64), (0.014, 60), (0.014, 78), (0.009, 55), (0.008, 134), (0.005, 34), (0.005, 167), (0.005, 179), (0.005, 65), (0.005, 66), (0.005, 186), (0.005, 194), (0.002, 166)] + else: + return [(0.296, 63), (0.235, 0), (0.132, 64), (0.074, 37), (0.069, 78), (0.051, 185), (0.051, 35), (0.030, 57), (0.020, 77), (0.016, 194), (0.008, 66), (0.007, 65), (0.003, 3), (0.003, 165), (0.003, 141), (0.001, 134), (0.001, 166)] + else: + return [(0.405, 0), (0.246, 37), (0.177, 63), (0.145, 35), (0.005, 185), (0.005, 65), (0.005, 64), (0.004, 57), (0.003, 66), (0.002, 165), (0.001, 78), (0.001, 55)] + else: + return [(0.357, 0), (0.112, 165), (0.101, 57), (0.094, 179), (0.086, 64), (0.074, 167), (0.067, 60), (0.064, 159), (0.033, 35), (0.007, 195), (0.002, 180), (0.001, 34), (0.001, 166), (0.001, 78)] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_MMRankingH100.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_MMRankingH100.py new file mode 100644 index 0000000000000000000000000000000000000000..6201acc4213aa153cc73971946d3a241d2063793 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_MMRankingH100.py @@ -0,0 +1,321 @@ +# flake8: noqa: B950 +# fmt: off +# This file was generated by AutoHeuristic. Do not modify it manually! +# To regenerate this file, take a look at the steps in the README.md file inside torchgen/_autoheuristic/mm/ +from typing import List, Optional, Tuple + +from torch._inductor.autoheuristic.autoheuristic_utils import ( + AHContext, + AHMetadata, + Choice, +) +from torch._inductor.autoheuristic.learnedheuristic_interface import ( + LearnedHeuristicDecision, +) + + +class MMRankingH100(LearnedHeuristicDecision): + + def __init__(self) -> None: + self.choices: list[Choice] = [] + self.fill_choices() + + def check_precondition(self, metadata: AHMetadata, context: AHContext,) -> bool: + return ( + metadata.name == self.get_name() + and metadata.shared_memory == 232448 + and str(metadata.device_capa) == "(9, 0)" + ) + + def get_confidence_threshold(self) -> float: + return 0.0 + + def get_choice(self, idx: int) -> Optional[str]: + if idx < len(self.choices): + return self.choices[idx] + return None + + def fill_choices(self) -> None: + self.choices.append('extern_mm') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=128_BLOCK-N=16_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=128_BLOCK-N=32_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=128_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=128_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=128_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=128_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=16_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=16_BLOCK-N=64_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=16_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=32_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=128_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=16_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=16_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=16_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=32_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=32_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=32_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=64_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=32_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=32_numstages=5_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=128_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=128_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=128_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=128_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=16_numstages=3_numwarps=1') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=16_numstages=4_numwarps=1') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=16_numstages=5_numwarps=1') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=32_numstages=1_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=32_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=32_numstages=3_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=32_numstages=4_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=32_numstages=5_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=64_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=64_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=16_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=128_numstages=2_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=128_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=16_numstages=4_numwarps=1') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=16_numstages=5_numwarps=1') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=32_numstages=4_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=32_numstages=5_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=64_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=32_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=128_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=16_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=16_numstages=1_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=16_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=16_numstages=5_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=32_numstages=1_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=16_BLOCK-N=64_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=32_BLOCK-N=16_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=32_BLOCK-N=16_numstages=5_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=32_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=32_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=32_BLOCK-N=64_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=64_BLOCK-N=16_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=64_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=16_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=32_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=128_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=16_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=16_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=32_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=32_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=64_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=64_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=16_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=128_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=16_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=16_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=32_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=16_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=16_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=16_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=32_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=32_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=32_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=64_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=64_numstages=5_numwarps=4') + + def get_name(self) -> str: + return 'mm' + + def get_best_choices(self, context: AHContext) -> Optional[list[tuple[float, int]]]: + if context.get_value('arith_intensity') <= 29.89772129058838: + if context.get_value('n') <= 34.0: + if context.get_value('n') <= 18.0: + if context.get_value('k*n') <= 432.0: + if context.get_value('arith_intensity') <= 7.8700292110443115: + return [(0.098, 128), (0.098, 129), (0.098, 127), (0.073, 14), (0.073, 16), (0.073, 12), (0.073, 154), (0.073, 156), (0.073, 157), (0.073, 155), (0.049, 10), (0.049, 94), (0.049, 95), (0.048, 96)] + else: + return [(0.091, 154), (0.073, 10), (0.073, 15), (0.073, 13), (0.073, 11), (0.073, 17), (0.073, 16), (0.073, 14), (0.073, 12), (0.055, 127), (0.054, 157), (0.054, 156), (0.054, 155), (0.036, 129), (0.036, 128), (0.018, 41), (0.018, 43)] + else: + if context.get_value('k') <= 40.0: + return [(0.070, 39), (0.069, 45), (0.069, 41), (0.069, 43), (0.069, 111), (0.069, 112), (0.056, 38), (0.056, 40), (0.056, 42), (0.056, 44), (0.056, 174), (0.056, 173), (0.056, 175), (0.056, 134), (0.056, 172), (0.056, 135), (0.014, 154), (0.014, 127)] + else: + return [(0.147, 144), (0.119, 143), (0.087, 142), (0.083, 0), (0.073, 191), (0.059, 69), (0.050, 67), (0.046, 70), (0.041, 1), (0.036, 174), (0.032, 43), (0.032, 123), (0.028, 40), (0.027, 42), (0.027, 173), (0.023, 175), (0.018, 66), (0.014, 192), (0.014, 193), (0.014, 139), (0.014, 68), (0.014, 127)] + else: + if context.get_value('mat1_stride_0') <= 40.0: + if context.get_value('mat1_stride_0') <= 20.0: + return [(0.109, 23), (0.109, 21), (0.109, 20), (0.088, 0), (0.087, 131), (0.066, 18), (0.065, 130), (0.065, 132), (0.065, 159), (0.065, 160), (0.065, 161), (0.065, 158), (0.022, 22), (0.022, 19)] + else: + return [(0.065, 46), (0.064, 52), (0.064, 50), (0.064, 48), (0.064, 51), (0.064, 49), (0.064, 47), (0.064, 53), (0.064, 181), (0.064, 177), (0.064, 179), (0.064, 176), (0.038, 130), (0.038, 136), (0.026, 182), (0.026, 178), (0.026, 180), (0.026, 137), (0.025, 158), (0.013, 114), (0.013, 113)] + else: + if context.get_value('mat1_stride_0') <= 68.0: + return [(0.138, 140), (0.125, 195), (0.100, 71), (0.100, 74), (0.100, 196), (0.100, 194), (0.100, 197), (0.075, 75), (0.062, 72), (0.062, 73), (0.012, 180), (0.012, 51), (0.012, 182)] + else: + return [(0.124, 180), (0.124, 182), (0.114, 75), (0.103, 74), (0.093, 51), (0.093, 71), (0.072, 72), (0.062, 194), (0.052, 145), (0.052, 195), (0.021, 48), (0.021, 50), (0.021, 47), (0.020, 124), (0.010, 147), (0.010, 146), (0.010, 46)] + else: + if context.get_value('k') <= 18.0: + if context.get_value('m*k') <= 528.0: + return [(0.097, 88), (0.087, 92), (0.077, 90), (0.058, 105), (0.058, 103), (0.058, 104), (0.058, 99), (0.058, 100), (0.058, 106), (0.058, 93), (0.057, 91), (0.057, 97), (0.057, 98), (0.057, 101), (0.048, 102), (0.029, 87), (0.029, 89)] + else: + if context.get_value('n') <= 80.0: + return [(0.057, 161), (0.057, 130), (0.057, 24), (0.056, 164), (0.056, 163), (0.056, 166), (0.056, 168), (0.056, 30), (0.056, 28), (0.056, 26), (0.056, 25), (0.056, 27), (0.056, 29), (0.056, 31), (0.042, 131), (0.028, 99), (0.028, 101), (0.028, 100), (0.028, 167), (0.028, 165), (0.028, 133)] + else: + return [(0.110, 164), (0.108, 163), (0.106, 168), (0.069, 161), (0.066, 151), (0.060, 152), (0.055, 165), (0.050, 27), (0.050, 29), (0.048, 131), (0.043, 153), (0.037, 133), (0.037, 130), (0.028, 8), (0.028, 5), (0.027, 7), (0.026, 26), (0.016, 162), (0.012, 9), (0.007, 4), (0.005, 100), (0.005, 6), (0.005, 24)] + else: + if context.get_value('k') <= 36.0: + if context.get_value('n') <= 68.0: + return [(0.097, 184), (0.097, 56), (0.086, 186), (0.086, 183), (0.086, 188), (0.086, 58), (0.086, 60), (0.065, 54), (0.043, 187), (0.043, 185), (0.043, 57), (0.043, 61), (0.032, 55), (0.032, 130), (0.032, 59), (0.011, 181), (0.011, 163), (0.011, 136), (0.011, 138)] + else: + return [(0.117, 184), (0.117, 170), (0.117, 169), (0.107, 183), (0.106, 188), (0.075, 181), (0.064, 130), (0.064, 56), (0.053, 171), (0.032, 57), (0.032, 59), (0.032, 185), (0.011, 163), (0.011, 32), (0.011, 37), (0.011, 34), (0.011, 33), (0.011, 35), (0.011, 36), (0.011, 54)] + else: + if context.get_value('mat2_stride_0') <= 384.0: + return [(0.244, 0), (0.061, 76), (0.061, 79), (0.030, 3), (0.030, 183), (0.030, 189), (0.030, 187), (0.030, 64), (0.030, 190), (0.030, 62), (0.030, 198), (0.030, 201), (0.030, 77), (0.030, 200), (0.030, 80), (0.030, 199), (0.030, 78), (0.030, 184), (0.020, 86), (0.020, 84), (0.020, 120), (0.020, 81), (0.020, 121), (0.020, 85), (0.020, 122), (0.010, 83), (0.010, 118), (0.010, 119), (0.010, 82)] + else: + return [(0.274, 83), (0.171, 86), (0.152, 0), (0.071, 85), (0.061, 125), (0.050, 84), (0.020, 109), (0.020, 117), (0.020, 81), (0.020, 118), (0.020, 121), (0.020, 108), (0.020, 115), (0.020, 116), (0.010, 110), (0.010, 120), (0.010, 103), (0.010, 107), (0.010, 119), (0.010, 122)] + else: + if context.get_value('arith_intensity') <= 56.995582580566406: + if context.get_value('n') <= 68.0: + if context.get_value('k*n') <= 4448.0: + if context.get_value('m*n') <= 29626368.0: + return [(0.107, 198), (0.107, 200), (0.107, 201), (0.107, 199), (0.106, 76), (0.106, 79), (0.064, 197), (0.063, 56), (0.043, 184), (0.043, 187), (0.042, 80), (0.042, 77), (0.042, 183), (0.021, 78)] + else: + return [(0.073, 201), (0.073, 198), (0.073, 200), (0.073, 199), (0.073, 197), (0.073, 56), (0.073, 58), (0.073, 79), (0.073, 76), (0.072, 59), (0.072, 78), (0.072, 77), (0.072, 80), (0.018, 184), (0.018, 55), (0.018, 54)] + else: + if context.get_value('k') <= 348.0: + return [(0.206, 76), (0.183, 77), (0.169, 198), (0.160, 199), (0.053, 59), (0.046, 56), (0.038, 3), (0.030, 148), (0.030, 58), (0.030, 187), (0.023, 184), (0.015, 0), (0.008, 55), (0.008, 54)] + else: + return [(0.146, 198), (0.145, 199), (0.145, 148), (0.126, 0), (0.084, 76), (0.084, 77), (0.042, 80), (0.042, 79), (0.021, 149), (0.021, 150), (0.021, 3), (0.014, 46), (0.014, 74), (0.014, 75), (0.014, 124), (0.014, 194), (0.014, 195), (0.007, 145), (0.007, 146), (0.007, 2), (0.007, 72), (0.007, 147), (0.007, 71)] + else: + if context.get_value('m') <= 3264.0: + return [(0.247, 147), (0.115, 197), (0.066, 199), (0.066, 201), (0.066, 198), (0.049, 0), (0.049, 169), (0.049, 171), (0.033, 140), (0.033, 125), (0.033, 114), (0.016, 126), (0.016, 183), (0.016, 184), (0.016, 185), (0.016, 182), (0.016, 188), (0.016, 78), (0.016, 148), (0.016, 138), (0.016, 77), (0.016, 56), (0.016, 59)] + else: + if context.get_value('k') <= 62.5: + return [(0.226, 190), (0.226, 189), (0.122, 62), (0.122, 64), (0.055, 77), (0.055, 78), (0.037, 198), (0.036, 201), (0.036, 33), (0.024, 163), (0.018, 56), (0.018, 35), (0.018, 169), (0.006, 171)] + else: + return [(0.162, 35), (0.118, 33), (0.096, 189), (0.096, 190), (0.088, 169), (0.074, 62), (0.073, 56), (0.066, 171), (0.051, 198), (0.051, 201), (0.044, 59), (0.037, 64), (0.029, 63), (0.007, 0), (0.007, 77)] + else: + if context.get_value('m*n') <= 1097728.0: + return [(0.403, 0), (0.179, 141), (0.134, 150), (0.086, 147), (0.051, 148), (0.048, 3), (0.024, 189), (0.020, 199), (0.017, 64), (0.010, 65), (0.010, 77), (0.007, 114), (0.003, 138), (0.003, 59), (0.003, 182)] + else: + if context.get_value('m*n') <= 3244032.0: + return [(0.295, 189), (0.176, 64), (0.157, 65), (0.090, 0), (0.069, 62), (0.059, 63), (0.046, 77), (0.039, 169), (0.023, 199), (0.020, 35), (0.013, 33), (0.010, 171), (0.003, 141)] + else: + if context.get_value('n') <= 136.0: + return [(0.197, 189), (0.197, 63), (0.161, 77), (0.157, 62), (0.061, 33), (0.044, 65), (0.039, 35), (0.039, 64), (0.030, 169), (0.026, 0), (0.017, 199), (0.017, 148), (0.009, 56), (0.004, 3)] + else: + return [(0.460, 0), (0.145, 62), (0.138, 63), (0.081, 35), (0.047, 33), (0.043, 189), (0.023, 64), (0.018, 77), (0.013, 169), (0.009, 65), (0.009, 56), (0.005, 32), (0.005, 59), (0.002, 183), (0.002, 163)] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_MixedMMA100.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_MixedMMA100.py new file mode 100644 index 0000000000000000000000000000000000000000..1ba7cbaf90275d1bb2cb50e8fd27fbd331173bbb --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_MixedMMA100.py @@ -0,0 +1,150 @@ +# flake8: noqa: B950 +# fmt: off +# This file was generated by AutoHeuristic. Do not modify it manually! +# To regenerate this file, take a look at the steps in the README.md file inside torchgen/_autoheuristic/mixed_mm/ +from typing import List, Optional, Tuple + +from torch._inductor.autoheuristic.autoheuristic_utils import ( + AHContext, + AHMetadata, + Choice, +) +from torch._inductor.autoheuristic.learnedheuristic_interface import ( + LearnedHeuristicDecision, +) + + +class MixedMMA100(LearnedHeuristicDecision): + + def __init__(self) -> None: + self.choices: list[Choice] = [] + self.fill_choices() + + def check_precondition(self, metadata: AHMetadata, context: AHContext,) -> bool: + return ( + metadata.name == self.get_name() + and metadata.shared_memory == 166912 + and str(metadata.device_capa) == "(8, 0)" + ) + + def get_confidence_threshold(self) -> float: + return 0.0 + + def get_choice(self, idx: int) -> Optional[str]: + if idx < len(self.choices): + return self.choices[idx] + return None + + def fill_choices(self) -> None: + self.choices.append('extern_fallback_mixed_mm') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=32_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=32_numstages=5_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=256_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=256_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=128_numstages=4_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=32_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=8') + + def get_name(self) -> str: + return 'mixed_mm' + + def get_best_choices(self, context: AHContext) -> Optional[list[tuple[float, int]]]: + if str(context.get_value('1LEQmLEQ16')) != 'True': + if context.get_value('m') <= 32.5: + if context.get_value('n') <= 6976.0: + if context.get_value('n') <= 3520.0: + if context.get_value('m*n') <= 37632.0: + return None + else: + return [(1.000, 13)] + else: + if context.get_value('m*k') <= 452352.0: + return [(0.590, 13), (0.256, 8), (0.103, 7), (0.051, 11)] + else: + return [(0.778, 8), (0.222, 13)] + else: + if context.get_value('k*n') <= 102776832.0: + if context.get_value('n') <= 14656.0: + return [(1.000, 11)] + else: + return [(0.889, 11), (0.111, 13)] + else: + return [(1.000, 11)] + else: + if context.get_value('m*n') <= 446464.0: + if context.get_value('m*n') <= 223424.0: + if context.get_value('mat1_stride_0') <= 3968.0: + return None + else: + return None + else: + if context.get_value('m*n') <= 346112.0: + return [(0.960, 16), (0.040, 7)] + else: + return [(0.750, 16), (0.136, 14), (0.114, 7)] + else: + if str(context.get_value('33LEQmLEQ64')) != 'True': + if context.get_value('n') <= 6976.0: + return [(1.000, 14)] + else: + return [(0.753, 2), (0.222, 1), (0.015, 7), (0.007, 16), (0.004, 12)] + else: + if context.get_value('n') <= 13888.0: + return [(0.710, 14), (0.275, 21), (0.014, 12)] + else: + return [(0.374, 19), (0.339, 20), (0.106, 21), (0.101, 16), (0.066, 17), (0.009, 14), (0.004, 18)] + else: + if context.get_value('n') <= 3520.0: + if context.get_value('arith_intensity') <= 3.994754433631897: + if str(context.get_value('mat2_dtype')) != 'torch.uint8': + if context.get_value('m*k') <= 18944.0: + return [(0.577, 5), (0.423, 6)] + else: + return [(0.988, 5), (0.012, 6)] + else: + if context.get_value('arith_intensity') <= 2.9899919033050537: + return None + else: + return None + else: + if context.get_value('arith_intensity') <= 7.956453561782837: + if context.get_value('k*n') <= 9244032.0: + return [(0.822, 5), (0.178, 6)] + else: + return [(0.977, 5), (0.023, 0)] + else: + if context.get_value('m*k') <= 978944.0: + return [(1.000, 5)] + else: + return [(0.971, 5), (0.029, 0)] + else: + if context.get_value('n') <= 13632.0: + if context.get_value('n') <= 6976.0: + return [(1.000, 6)] + else: + if context.get_value('k') <= 3968.0: + return [(0.617, 3), (0.111, 5), (0.099, 7), (0.086, 9), (0.062, 6), (0.025, 8)] + else: + return [(0.779, 8), (0.119, 5), (0.053, 7), (0.035, 6), (0.013, 3)] + else: + if context.get_value('k*n') <= 39518208.0: + return [(0.385, 4), (0.327, 3), (0.192, 6), (0.038, 7), (0.038, 10), (0.019, 5)] + else: + if context.get_value('n') <= 20800.0: + return [(0.821, 6), (0.121, 7), (0.029, 4), (0.014, 5), (0.007, 3), (0.007, 8)] + else: + return [(0.530, 7), (0.386, 6), (0.046, 8), (0.021, 3), (0.015, 4), (0.002, 5)] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_MixedMMH100.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_MixedMMH100.py new file mode 100644 index 0000000000000000000000000000000000000000..8fe46cf75d8c63fab36eef728edf34788d6e3b22 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_MixedMMH100.py @@ -0,0 +1,149 @@ +# flake8: noqa: B950 +# fmt: off +# This file was generated by AutoHeuristic. Do not modify it manually! +# To regenerate this file, take a look at the steps in the README.md file inside torchgen/_autoheuristic/mixed_mm/ +from typing import Optional + +from torch._inductor.autoheuristic.autoheuristic_utils import ( + AHContext, + AHMetadata, + Choice, +) +from torch._inductor.autoheuristic.learnedheuristic_interface import ( + LearnedHeuristicDecision, +) + + +class MixedMMH100(LearnedHeuristicDecision): + + def __init__(self) -> None: + self.choices: list[Choice] = [] + self.fill_choices() + + def check_precondition(self, metadata: AHMetadata, context: AHContext,) -> bool: + return ( + metadata.name == self.get_name() + and metadata.shared_memory == 232448 + and str(metadata.device_capa) == "(9, 0)" + ) + + def get_confidence_threshold(self) -> float: + return 0.0 + + def get_choice(self, idx: int) -> Optional[str]: + if idx < len(self.choices): + return self.choices[idx] + return None + + def fill_choices(self) -> None: + self.choices.append('extern_fallback_mixed_mm') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=32_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=128_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=32_numstages=2_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=32_numstages=5_numwarps=2') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=128_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=256_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=256_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=128_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=16_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=32_numstages=2_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=128_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=32_BLOCK-K=32_BLOCK-N=64_numstages=5_numwarps=8') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=128_numstages=4_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=32_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=128_BLOCK-N=64_numstages=5_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=128_numstages=3_numwarps=4') + self.choices.append('type=triton_BLOCK-M=64_BLOCK-K=64_BLOCK-N=64_numstages=3_numwarps=8') + + def get_name(self) -> str: + return 'mixed_mm' + + def get_best_choices(self, context: AHContext) -> Optional[list[tuple[float, int]]]: + if context.get_value('arith_intensity') <= 15.988086223602295: + if context.get_value('n') <= 25280.0: + if context.get_value('n') <= 1344.0: + if context.get_value('mat1_stride_0') <= 7808.0: + return [(0.581, 7), (0.419, 6)] + else: + if context.get_value('m*n') <= 7680.0: + return [(0.875, 0), (0.125, 6)] + else: + return [(0.833, 0), (0.167, 7)] + else: + if context.get_value('n') <= 8512.0: + if str(context.get_value('mat2_dtype')) != 'torch.int8': + return [(0.763, 6), (0.237, 7)] + else: + return [(0.725, 7), (0.275, 6)] + else: + if str(context.get_value('mat1_dtype')) != 'torch.bfloat16': + return [(0.736, 7), (0.197, 9), (0.048, 6), (0.014, 8), (0.005, 10)] + else: + return [(0.473, 7), (0.398, 6), (0.097, 9), (0.032, 10)] + else: + if context.get_value('n') <= 42254.0: + if context.get_value('n') <= 33856.0: + if context.get_value('k*n') <= 68157440.0: + return [(0.370, 4), (0.370, 5), (0.074, 7), (0.074, 8), (0.074, 11), (0.037, 6)] + else: + return [(0.916, 8), (0.036, 7), (0.036, 9), (0.012, 4)] + else: + return [(0.659, 5), (0.341, 6)] + else: + if context.get_value('k*n') <= 326052992.0: + if context.get_value('n') <= 55232.0: + return [(0.571, 6), (0.321, 7), (0.036, 4), (0.036, 8), (0.036, 9)] + else: + return [(0.506, 6), (0.325, 8), (0.104, 7), (0.039, 5), (0.026, 9)] + else: + if context.get_value('n') <= 57024.0: + return [(0.462, 9), (0.385, 7), (0.115, 6), (0.038, 8)] + else: + return [(0.598, 8), (0.223, 9), (0.107, 6), (0.071, 7)] + else: + if context.get_value('m*n') <= 543936.0: + if str(context.get_value('17LEQmLEQ32')) != 'True': + if context.get_value('m*n') <= 262272.0: + if context.get_value('n') <= 1592.5: + return [(0.860, 0), (0.140, 9)] + else: + return None + else: + if context.get_value('m*k') <= 1294336.0: + return [(0.833, 17), (0.150, 18), (0.017, 15)] + else: + return [(0.917, 17), (0.083, 8)] + else: + if context.get_value('n') <= 12416.0: + if context.get_value('m*n') <= 43008.0: + return None + else: + return [(0.853, 14), (0.147, 9)] + else: + return [(0.625, 12), (0.375, 14)] + else: + if context.get_value('m') <= 32.5: + if context.get_value('mat2_stride_1') <= 6656.0: + if context.get_value('n') <= 69184.0: + return [(0.611, 12), (0.361, 14), (0.028, 13)] + else: + return [(1.000, 12)] + else: + if context.get_value('mat2_stride_1') <= 20864.0: + return [(1.000, 12)] + else: + return [(0.958, 12), (0.042, 9)] + else: + if context.get_value('m*n') <= 1085440.0: + if context.get_value('n') <= 9152.0: + return [(1.000, 18)] + else: + return [(0.780, 18), (0.160, 16), (0.060, 20)] + else: + if context.get_value('m') <= 67.0: + return [(0.650, 16), (0.203, 19), (0.122, 18), (0.016, 20), (0.008, 1)] + else: + return [(0.561, 3), (0.185, 16), (0.096, 20), (0.083, 19), (0.076, 2)] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_PadMMA100.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_PadMMA100.py new file mode 100644 index 0000000000000000000000000000000000000000..b61f8a9dd1e99056864a9dddc663b090f6971214 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/_PadMMA100.py @@ -0,0 +1,109 @@ +# flake8: noqa: B950 +# fmt: off +# This file was generated by AutoHeuristic. Do not modify it manually! +# To regenerate this file, take a look at the steps in the README.md file inside torchgen/_autoheuristic/pad_mm/ +from torch._inductor.autoheuristic.autoheuristic_utils import AHContext, AHMetadata, Choice, CHOICE_COL +from torch._inductor.autoheuristic.learnedheuristic_interface import ( + LearnedHeuristicRegression, +) + + +class PadMMA100(LearnedHeuristicRegression): + + def __init__(self) -> None: + pass + + def check_precondition(self, metadata: AHMetadata, context: AHContext,) -> bool: + return ( + metadata.name == self.get_name() + and metadata.shared_memory == 166912 + and str(metadata.device_capa) == "(8, 0)" + ) + + def get_feedback(self, context: AHContext, choice: Choice) -> float: + context.context_dict[CHOICE_COL] = choice + return self.predict(context) + + def get_confidence_threshold(self) -> float: + return 1.7025303314066 + + def get_name(self) -> str: + return 'pad_mm' + + def predict(self, context: AHContext) -> float: + if str(context.get_value('choice')) != 'pad': + if str(context.get_value('using_tf32')) != 'False': + if context.get_value('m*n') <= 4171264.0: + if context.get_value('m*k') <= 3999308.0: + return 1.8751469764071178 + else: + if str(context.get_value('n_multiple_32')) != 'True': + return 0.9117231355626345 + else: + return 1.1607689608873861 + else: + if str(context.get_value('n_multiple_2')) != 'True': + if str(context.get_value('using_tf32')) != 'True': + return 0.7430382200435992 + else: + return 0.8531269794448678 + else: + if str(context.get_value('k_multiple_2')) != 'True': + return 0.7577181972719917 + else: + return 0.8977349440424219 + else: + if context.get_value('m*n') <= 1299712.0: + return 1.1669723418995592 + else: + if context.get_value('mat2_stride_1') <= 45217.5: + if context.get_value('m*n') <= 55884158.0: + return 1.0262769936909601 + else: + return 1.0022677428470845 + else: + if context.get_value('m') <= 18478.0: + return 1.1127066261894312 + else: + return 1.0337740659894263 + else: + if str(context.get_value('mat1_dtype')) != 'torch.float32': + if str(context.get_value('n_multiple_2')) != 'False': + if str(context.get_value('k_multiple_2')) != 'True': + if context.get_value('mat1_stride_0') <= 561.0: + return 1.2900382135142956 + else: + return 1.5761737616057887 + else: + if context.get_value('num_dims_needs_padding') <= 1.5: + return 1.0472263310239422 + else: + return 1.1727673465762514 + else: + if context.get_value('k') <= 28238.5: + if context.get_value('k/(m*n)') <= 0.00026227018679492176: + return 1.6770542505397175 + else: + return 1.3974785435105923 + else: + if str(context.get_value('mat1_dtype')) != 'torch.bfloat16': + return 1.3952699800111992 + else: + return 1.5759286511628336 + else: + if str(context.get_value('using_tf32')) != 'False': + if context.get_value('m*n') <= 14119424.0: + return 0.8875772670422478 + else: + if str(context.get_value('mat2_innermost_needs_padding')) != 'True': + return 1.1467728924377265 + else: + return 1.215842963532998 + else: + if context.get_value('arith_intensity') <= 396.8774871826172: + return 0.89940161869551 + else: + if context.get_value('mat2_stride_1') <= 45217.5: + return 0.9964328169353532 + else: + return 0.9493479238294826 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/artifacts/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/autoheuristic.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/autoheuristic.py new file mode 100644 index 0000000000000000000000000000000000000000..0c12ca77cf2db28bbe1fc10cca44774ced5c102f --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/autoheuristic.py @@ -0,0 +1,316 @@ +import json +import os +from collections.abc import Callable +from functools import partial +from typing import Any, Optional + +import torch +from torch._inductor.autoheuristic.autoheuristic_utils import ( + AHContext, + AHMetadata, + AHOperation, + Choice, + CHOICE_COL, + Feedback, + FEEDBACK_COL, + get_metadata_str_from_log, +) +from torch._inductor.autoheuristic.learned_heuristic_controller import ( + LearnedHeuristicController, +) +from torch._inductor.ir import ChoiceCaller +from torch._inductor.runtime.runtime_utils import cache_dir +from torch._inductor.utils import get_gpu_shared_memory + + +class LocalFeedback: + """ + To be able to collect data for a choice, a function providing feedback given a choice has to be provided. + LocalFeedback can be used when AutoHeuristic should immediately run the function to collect feedback for each choice + (see pad_mm.py, where the autotuning happens locally, for an example). + """ + + def __init__(self, feedback_fn: Callable[[Choice], Feedback]) -> None: + self.feedback_fn = feedback_fn + + def __call__(self, choice: Choice) -> Feedback: + return self.feedback_fn(choice) + + +class InconsistentMetadata(Exception): + """ + Exception that is thrown when AutoHeuristic tries to log data to a file where the metadata stored in the file does + not match the metadata it would store if the file didn't exist. + """ + + +class AutoHeuristic: + """ + AutoHeuristic is a framework that allows one to collect data, learn a heuristic (i.e. a regression tree) and + generate the heuristic to code. This class allows one to collect data. The collected data can then be used to train + a heuristic (see torchgen/autoheuristic/). + """ + + collected_feedback: dict[Choice, Feedback] + + def __init__( + self, + fallback: Callable[[], Choice], + choices: list[Choice], + feedback: Optional[LocalFeedback], + context: AHContext, + name: str, + augment_context: Optional[list[AHOperation]] = None, + precondition: Optional[Callable[[AHMetadata, AHContext], bool]] = None, + ) -> None: + """ + Initializes an instance of the AutoHeuristic class. + + Args: + fallback: A callable that returns a Choice when the heuristic is unsure which choice to make, or + AutoHeuristic is in data collection mode. + choices: A list of possible choices the heuristic can make. + feedback: An instance of LocalFeedback that provides feedback for a given choice. + context: Context to store with each choice and feedback. + name: A string that identifies the heuristic. + augment_context: An optional list of AHOperation instances that augment the context. + precondition: A callable that returns a boolean indicating whether AutoHeuristic should run. + """ + self.fallback = fallback + self.choices = choices + self.feedback = feedback + self.context = context + self.name = name + self.collected_feedback = {} + self.augment_context = augment_context + self.metadata = AHMetadata( + get_gpu_shared_memory(), + torch.cuda.get_device_capability(), + self.choices, + self.name, + ) + self.precondition = precondition + + if not self.satisfies_precondition(): + return + + if torch._inductor.config.autoheuristic_log_path == "DEFAULT": + self.log_path = self.get_default_log_path() + else: + self.log_path = torch._inductor.config.autoheuristic_log_path + + if torch._inductor.config.collect_autoheuristic(self.name): + if self.feedback is not None: + for choice in self.choices: + feedback_val = self.feedback(choice) + self.save_data(choice, feedback_val) + + def satisfies_precondition(self) -> bool: + return self.precondition is None or self.precondition( + self.metadata, self.context + ) + + def get_choice(self) -> Choice: + """ + Returns the chosen option based on the value of autoheuristic_use. + If self.name is one of the comma separated strings in autoheuristic_use, + it queries a learned heuristic to make a decision. Otherwise, it returns the fallback option. + """ + + if not self.satisfies_precondition(): + return self.fallback() + + if torch._inductor.config.use_autoheuristic(self.name): + if self.augment_context is not None: + self.context.apply_operations(self.augment_context) + controller = LearnedHeuristicController( + self.metadata, + self.context, + ) + decision = controller.get_decision() + if decision not in self.choices: + # TODO(AlnisM): We might want to allow this in the future + return self.fallback() + if decision is not None: + return decision + return self.fallback() + + def get_top_k_choices( + self, top_k: int, always_included: Optional[list[str]] = None + ) -> Optional[list[Choice]]: + if not self.satisfies_precondition(): + return None + if torch._inductor.config.use_autoheuristic(self.name): + if self.augment_context is not None: + self.context.apply_operations(self.augment_context) + controller = LearnedHeuristicController( + self.metadata, + self.context, + ) + choices = controller.get_decisions_ranked(top_k) + if choices is None: + return None + if always_included is not None: + for choice in always_included: + if choice not in choices: + choices.append(choice) + return choices + return None + + def get_collected_feedback(self, choice: Choice) -> Any: + return self.collected_feedback.get(choice, None) + + @staticmethod + def get_device_identifier() -> str: + # a heuristic might work well for one GPU, but not for another + # we store the collected data per GPU model and learn a heuristic per GPU model + + # TODO(AlnisM): just using the device name for now, but the same GPU model can have different names + device_name = torch.cuda.get_device_name().replace(" ", "_") + return device_name + + def get_default_log_path(self) -> str: + device_name = self.get_device_identifier() + path = f"{cache_dir()}/autoheuristic/{device_name}/" + os.makedirs(path, exist_ok=True) + path += f"{self.name}.txt" + return path + + def serialize_metadata(self) -> str: + metadata_dict = self.metadata.to_dict() + ( + num_features, + cat_features, + ) = self.context.get_numerical_and_categorical_features() + metadata_dict["numerical_features"] = num_features + metadata_dict["categorical_features"] = cat_features + return json.dumps(metadata_dict) + + def save_data(self, choice: Choice, feedback_val: Feedback) -> None: + self.collected_feedback[choice] = feedback_val + log_path = self.log_path + + lines = [] + log_exists = os.path.exists(log_path) + if log_exists: + # if log already exists, make sure it is consistent + metadata = self.serialize_metadata() + existing_metadata = get_metadata_str_from_log(self.log_path) + if existing_metadata != metadata: + raise InconsistentMetadata( + "Given metadata does not match existing metadata" + ) + else: + lines.append(self.serialize_metadata()) + feature_header = self.context.get_feature_names_csv() + header = feature_header + "," + CHOICE_COL + "," + FEEDBACK_COL + lines.append(header) + + line = "" + feature_values = self.context.get_feature_values_csv() + line += feature_values + "," + choice + "," + str(feedback_val) + lines.append(line) + + with open(log_path, "a") as f: + f.write("\n".join(lines) + "\n") + + +class AutoHeuristicSelectAlgorithm(AutoHeuristic): + """ + AutoHeuristicSelectAlgorithm is a subclass of AutoHeuristic that allows one to collect data and learn a heuristic + when one wants to use AutoHeuristic for kernel choice selection. + """ + + def __init__( + self, + fallback: Callable[[], Optional[ChoiceCaller]], + choices: list[ChoiceCaller], + input_nodes: list[Any], + context: AHContext, + name: str, + augment_context: Optional[list[AHOperation]] = None, + precondition: Optional[Callable[[AHMetadata, AHContext], bool]] = None, + ) -> None: + """ + The arguments choices, input_nodes and name have to match the ones used in the call to + autotune_select_algorithm(), e.g. if the following call is made + autotune_select_algorithm(name, choices, input_nodes, layout), the same name, choices and input_nodes + have to be used here. + """ + self.input_nodes = input_nodes + self.choicestr2choice: dict[str, ChoiceCaller] = {} + for choice in choices: + self.choicestr2choice[choice.autoheuristic_id()] = choice + choices_str = list(self.choicestr2choice.keys()) + + def fallback_str() -> str: + fallback_choice = fallback() + if fallback_choice is None: + # TODO: Find a nicer way to handle this + return "unsure" + return fallback_choice.autoheuristic_id() + + super().__init__( + fallback_str, + choices_str, + None, + context, + name, + augment_context, + precondition, + ) + + if ( + torch._inductor.config.collect_autoheuristic(self.name) + and self.satisfies_precondition() + ): + self.register_global_feedback(input_nodes, choices) + + def register_global_feedback( + self, input_nodes: list[Any], choices: list[ChoiceCaller] + ) -> None: + """ + Registers a callback in select_algorithm, which is called with the timing of each choice. + """ + + from torch._inductor.select_algorithm import ( + add_feedback_saver, + create_inputs_key, + create_precompile_key, + ) + + def store_global_feedback( + ah_inputs_key: str, + ah_precompile_key: str, + timings: dict[ChoiceCaller, float], + name: str, + input_nodes: list[Any], + choices: list[ChoiceCaller], + ) -> None: + current_inputs_key = create_inputs_key(input_nodes) + if current_inputs_key != ah_inputs_key: + return + current_precompile_key = create_precompile_key( + name, current_inputs_key, choices + ) + if current_precompile_key != ah_precompile_key: + return + for choice, time in timings.items(): + self.save_data(choice.autoheuristic_id(), time) + + inputs_key = create_inputs_key(input_nodes) + precompile_key = create_precompile_key(self.name, inputs_key, choices) + feedback_saver = partial(store_global_feedback, inputs_key, precompile_key) + add_feedback_saver(feedback_saver) + + def get_choice_caller(self) -> Optional[ChoiceCaller]: + choice = self.get_choice() + return self.choicestr2choice.get(choice, None) + + def get_top_k_choices_caller( + self, top_k: int, always_included: Optional[list[str]] = None + ) -> Optional[list[ChoiceCaller]]: + choices = self.get_top_k_choices(top_k, always_included) + if choices is None: + return None + return [self.choicestr2choice[choice] for choice in choices] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/autoheuristic_utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/autoheuristic_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..0d0435fe44b4035a8f338f503340fc351019252a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/autoheuristic_utils.py @@ -0,0 +1,340 @@ +import functools +from collections.abc import Callable +from typing import Any + +import torch + + +Feedback = float +Choice = str +Value = Any + +CHOICE_COL = "choice" +FEEDBACK_COL = "feedback" + + +class AHFeature: + """ + The context, that AutoHeuristic stores, is a list of features. AutoHeuristic needs to know whether a feature is + categorical (i.e., not a continuous variable) to learn a machine learning model. + """ + + def __init__(self, name: str, value: Value, is_categorical: bool = False) -> None: + self.name = name + self.value = value + self.is_categorical = is_categorical + + +class AHOperation: + """ + AHOperation can be used to augment the data collected by AutoHeuristic. + One might for example store features like m, k, n, but also want to use + features like m*n, or k*n, to learn a heuristic. Instead of storing features + that can be created from the collected data, one can use AHOperation to + create new features from the collected data. + """ + + def __init__( + self, name: str, func: Callable[[Any], Value], is_categorical: bool = False + ) -> None: + self.name = name + self.func = func + self.is_categorical = is_categorical + + def apply_operation(self, data: Any) -> None: + data[self.name] = self.func(data) + + +class AHContext: + """ + This class is used to specify which information AutoHeuristic should store. For each choice, AutoHeursitic will + store the context and the collected feedback. The context could be something like the shape of a tensor, i.e., + information that will help to learn a heuristic. + """ + + features: list[AHFeature] + context_dict: dict[str, Value] + + def __init__(self) -> None: + self.features = [] + self.context_dict = {} + + def add_feature( + self, name: str, value: Value, is_categorical: bool = False + ) -> None: + self.features.append(AHFeature(name, value, is_categorical=is_categorical)) + self.context_dict[name] = value + + def get_numerical_and_categorical_features(self) -> tuple[list[str], list[str]]: + numerical_features = [] + categorical_features = [] + for feature in self.features: + if feature.is_categorical: + categorical_features.append(feature.name) + else: + numerical_features.append(feature.name) + + return numerical_features, categorical_features + + def get_feature_names_csv(self) -> str: + return ",".join(feature.name for feature in self.features) + + def get_feature_values_csv(self) -> str: + return ",".join(str(feature.value) for feature in self.features) + + def get_value(self, name: str) -> Value: + return self.context_dict[name] + + def apply_operations(self, operations: list[AHOperation]) -> None: + for op in operations: + op.apply_operation(self.context_dict) + + +class AHMetadata: + def __init__( + self, + shared_memory: Any, + device_capa: tuple[int, int], + choices: list[Choice], + name: str, + ) -> None: + # use amount of shared_memory and device_capability to identify GPU + # TODO(AlnisM): there might be a better way to do this + self.shared_memory = shared_memory + self.device_capa = device_capa + self.choices = choices + self.name = name + + def to_dict(self) -> dict[str, Value]: + return { + "shared_memory": self.shared_memory, + "device_capa": self.device_capa, + "name": self.name, + } + + +def get_metadata_str_from_log(log_path: str) -> str: + with open(log_path, newline="") as file: + json_string = file.readline().strip() + return json_string + + +def check_minsize(context: AHContext, minsize: int) -> bool: + return ( + context.get_value("m") >= minsize + and context.get_value("k") >= minsize + and context.get_value("n") >= minsize + ) + + +def pad_mm_precondition(metadata: AHMetadata, context: AHContext) -> bool: + if metadata.shared_memory == 166912 and metadata.device_capa == (8, 0): + # A100 precondition + return check_minsize(context, 512) + elif metadata.shared_memory == 232448 and metadata.device_capa == (9, 0): + # H100 precondition + return check_minsize(context, 768) + return True + + +def get_mixedmm_precondition(metadata: AHMetadata, context: AHContext) -> bool: + m = context.get_value("m") + k = context.get_value("k") + n = context.get_value("n") + if m > 128 or k < 1024 or n < 1024: + return False + mat1_iscontig = context.get_value("mat1_iscontig") + mat2_iscontig = context.get_value("mat2_iscontig") + return mat1_iscontig and not mat2_iscontig + + +def get_mult_dims_ops() -> list[AHOperation]: + m_times_k_op = AHOperation("m*k", lambda data: data["m"] * data["k"]) + m_times_n_op = AHOperation("m*n", lambda data: data["m"] * data["n"]) + k_times_n_op = AHOperation("k*n", lambda data: data["k"] * data["n"]) + return [m_times_k_op, m_times_n_op, k_times_n_op] + + +def get_arith_intensity(data: Any) -> float: + m = data["m"] + k = data["k"] + n = data["n"] + if m == 0 or k == 0 or n == 0: + return 0.0 + return m * k * n / (m * k + k * n + m * n) + + +def pad_mm_operations() -> list[AHOperation]: + mult_dims_ops = get_mult_dims_ops() + k_div_m_times_n_op = AHOperation( + "k/(m*n)", lambda data: data["k"] / (data["m"] * data["n"]) + ) + + def bfloat_perf_hit(data: Any) -> bool: + m = data["m"] + k = data["k"] + n = data["n"] + is_bfloat = str(data["mat1_dtype"]) == "torch.bfloat16" + return k > (m * 1024) and k > (n * 1024) and is_bfloat + + bfloat_perf_hit_op = AHOperation( + "bfloat_perf_hit", bfloat_perf_hit, is_categorical=True + ) + + arith_intensity_op = AHOperation("arith_intensity", get_arith_intensity) + dims_need_padding_ops = get_dims_need_padding_ops() + dims_multiple_ops = get_dims_multiple_ops() + is_contig_ops = get_is_contig_ops() + + ah_operations = mult_dims_ops + [ + k_div_m_times_n_op, + bfloat_perf_hit_op, + arith_intensity_op, + ] + ah_operations.extend(dims_need_padding_ops) + ah_operations.extend(dims_multiple_ops) + ah_operations.extend(is_contig_ops) + return ah_operations + + +def between_op(data: Any, dim: str, lower: int, upper: int) -> bool: + return data[dim] >= lower and data[dim] <= upper + + +def between_ops() -> list[AHOperation]: + dims = ["m", "k", "n"] + limits = [(1, 16), (17, 32), (33, 64), (65, 128), (129, 256)] + ah_operations = [] + for dim in dims: + for lower, upper in limits: + between_op_fn = functools.partial( + between_op, dim=dim, lower=lower, upper=upper + ) + # using 'LEQ' instead of '<=' because '<=' cannot be exported to dot + between_op_name = f"{lower}LEQ{dim}LEQ{upper}" + ah_operations.append( + AHOperation(between_op_name, between_op_fn, is_categorical=True) + ) + return ah_operations + + +def pow2_op(data: Any, dim: str, exponent: int) -> bool: + return data[dim] == 2**exponent + + +def mm_operations() -> list[AHOperation]: + mult_dims_ops = get_mult_dims_ops() + arith_intensity_op = AHOperation("arith_intensity", get_arith_intensity) + return mult_dims_ops + [arith_intensity_op] + + +def mixed_mm_operations() -> list[AHOperation]: + return mm_operations() + between_ops() + + +def is_multiple(data: Any, dim: str, mult: int) -> bool: + return data[dim] % mult == 0 + + +def get_dims_multiple_ops() -> list[AHOperation]: + multiples = [2, 4, 8, 16, 32] + dims = ["m", "k", "n"] + dims_multiple_ops = [] + for dim in dims: + for mult in multiples: + is_multiple_fn = functools.partial(is_multiple, dim=dim, mult=mult) + dims_multiple_op = AHOperation( + f"{dim}_multiple_{mult}", is_multiple_fn, is_categorical=True + ) + dims_multiple_ops.append(dims_multiple_op) + return dims_multiple_ops + + +def get_dims_need_padding_ops() -> list[AHOperation]: + def mat1_innermost_needs_padding_fn(data: Any) -> bool: + mat1_stride_0 = data["mat1_stride_0"] + mat1_stride_1 = data["mat1_stride_1"] + m_padded_length = data["m_padded_length"] + k_padded_length = data["k_padded_length"] + mat1_innermost_needs_padding = False + if mat1_stride_0 == 1 and m_padded_length != 0: + mat1_innermost_needs_padding = True + if mat1_stride_1 == 1 and k_padded_length != 0: + mat1_innermost_needs_padding = True + return mat1_innermost_needs_padding + + mat1_innermost_op = AHOperation( + "mat1_innermost_needs_padding", + mat1_innermost_needs_padding_fn, + is_categorical=True, + ) + + def mat2_innermost_needs_padding_fn(data: Any) -> bool: + mat2_stride_0 = data["mat2_stride_0"] + mat2_stride_1 = data["mat2_stride_1"] + k_padded_length = data["k_padded_length"] + n_padded_length = data["n_padded_length"] + mat2_innermost_needs_padding = False + if mat2_stride_0 == 1 and k_padded_length != 0: + mat2_innermost_needs_padding = True + if mat2_stride_1 == 1 and n_padded_length != 0: + mat2_innermost_needs_padding = True + return mat2_innermost_needs_padding + + mat2_innermost_op = AHOperation( + "mat2_innermost_needs_padding", + mat2_innermost_needs_padding_fn, + is_categorical=True, + ) + + def num_dims_needs_padding_fn(data: Any) -> int: + m_padded_length = data["m_padded_length"] + k_padded_length = data["k_padded_length"] + n_padded_length = data["n_padded_length"] + num_dims_needs_padding = 0 + if m_padded_length != 0: + num_dims_needs_padding += 1 + if k_padded_length != 0: + num_dims_needs_padding += 1 + if n_padded_length != 0: + num_dims_needs_padding += 1 + return num_dims_needs_padding + + num_dims_op = AHOperation("num_dims_needs_padding", num_dims_needs_padding_fn) + return [mat1_innermost_op, mat2_innermost_op, num_dims_op] + + +def get_is_contig_ops() -> list[AHOperation]: + def mat1_is_contig_fn(data: Any) -> bool: + stride_0 = data["mat1_stride_0"] + stride_1 = data["mat1_stride_1"] + k = data["k"] + return stride_0 == k and stride_1 == 1 + + mat1_is_contig_op = AHOperation( + "mat1_iscontig", mat1_is_contig_fn, is_categorical=True + ) + + def mat2_is_contig_fn(data: Any) -> bool: + stride_0 = data["mat2_stride_0"] + stride_1 = data["mat2_stride_1"] + n = data["n"] + return stride_0 == n and stride_1 == 1 + + mat2_is_contig_op = AHOperation( + "mat2_iscontig", mat2_is_contig_fn, is_categorical=True + ) + + return [mat1_is_contig_op, mat2_is_contig_op] + + +def context_add_strides(context: AHContext, name: str, stride: tuple[int, ...]) -> None: + for i, s in enumerate(stride): + context.add_feature(f"{name}_stride_{i}", s) + + +def context_add_using_tf32(context: AHContext, dtype: torch.dtype) -> None: + using_tf32 = "not_float_32" + if dtype == torch.float32: + using_tf32 = torch.backends.cuda.matmul.allow_tf32 + context.add_feature("using_tf32", using_tf32, is_categorical=True) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/learned_heuristic_controller.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/learned_heuristic_controller.py new file mode 100644 index 0000000000000000000000000000000000000000..50c11eb9a712afafee7479987a6832e412cc393a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/learned_heuristic_controller.py @@ -0,0 +1,119 @@ +import importlib +import inspect +import pkgutil +from collections import defaultdict +from typing import Any, Optional + +from torch._inductor.autoheuristic.autoheuristic_utils import ( + AHContext, + AHMetadata, + Choice, +) +from torch._inductor.autoheuristic.learnedheuristic_interface import LearnedHeuristic + + +def find_and_instantiate_subclasses( + package_name: str, base_class: Any +) -> list[LearnedHeuristic]: + instances = [] + + package = importlib.import_module(package_name) + for _, module_name, _ in pkgutil.walk_packages( + package.__path__, package.__name__ + "." + ): + try: + module_basename = module_name.split(".")[-1] + if not module_basename.startswith("_"): + # learned heuristics start with an underscore + continue + module = importlib.import_module(module_name) + + # look for classes that are subclasses of base_class + for _name, obj in inspect.getmembers(module): + if ( + inspect.isclass(obj) + and issubclass(obj, base_class) + and obj != base_class + ): + instance = obj() + instances.append(instance) + except Exception as e: + print(f"Error processing module {module_name}: {e}") + + return instances + + +class LearnedHeuristicController: + """ + Class that finds and instantiates all learned heuristics. It also provides + a way to get the decision of a learned heuristic. + """ + + existing_heuristics: dict[str, list[LearnedHeuristic]] = defaultdict(list) + """ + A dictionary that stores all the learned heuristics for each optimization. + The key is the optimization name, and the value is a list of LearnedHeuristic objects. + """ + + heuristics_initialized: bool = False + """ + A flag that indicates whether the learned heuristics have been initialized. + Set to true when the get_decision() function is called for the first time. + """ + + def __init__( + self, + metadata: AHMetadata, + context: AHContext, + ) -> None: + self.metadata = metadata + self.context = context + + def get_heuristics(self, name: str) -> list[LearnedHeuristic]: + """ + Returns a list of learned heuristics for the given optimization name. + """ + + if not LearnedHeuristicController.heuristics_initialized: + # learned heuristics are generated into the following package + learned_heuristics_package = "torch._inductor.autoheuristic.artifacts" + + # learned heuristics have to be of type LearnedHeuristic + base_class = LearnedHeuristic + found_heuristics = find_and_instantiate_subclasses( + learned_heuristics_package, base_class + ) + + for learned_heuristic in found_heuristics: + opt_name = learned_heuristic.get_name() + LearnedHeuristicController.existing_heuristics[opt_name].append( + learned_heuristic + ) + LearnedHeuristicController.heuristics_initialized = True + + return LearnedHeuristicController.existing_heuristics[name] + + def get_decision(self) -> Optional[Choice]: + """ + Returns the decision made by the learned heuristic or None if no heuristic was found or the heuristic is unsure + which choice to make. + """ + + heuristics = self.get_heuristics(self.metadata.name) + for heuristic in heuristics: + if heuristic.check_precondition(self.metadata, self.context): + return heuristic.get_decision(self.context, self.metadata.choices) + return None + + def get_decisions_ranked(self, top_k: int) -> Optional[list[Choice]]: + heuristics = self.get_heuristics(self.metadata.name) + for heuristic in heuristics: + if heuristic.check_precondition(self.metadata, self.context): + choices = heuristic.get_decisions_ranked(self.context) + if choices is None: + return None + avail_choices = [ + choice for choice in choices if choice in self.metadata.choices + ] + return avail_choices[:top_k] + return None diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/learnedheuristic_interface.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/learnedheuristic_interface.py new file mode 100644 index 0000000000000000000000000000000000000000..84a941b076c314d9961af916a5a559e9948c0e00 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/autoheuristic/learnedheuristic_interface.py @@ -0,0 +1,89 @@ +import operator +from typing import Optional + +from torch._inductor.autoheuristic.autoheuristic_utils import ( + AHContext, + AHMetadata, + Choice, +) + + +class LearnedHeuristic: + """ + LearnedHeuristic is a base class for all learned heuristics. + """ + + def __init__(self) -> None: + pass + + def check_precondition( + self, + metadata: AHMetadata, + context: AHContext, + ) -> bool: + return True + + def get_decision( + self, context: AHContext, choices: list[Choice] + ) -> Optional[Choice]: + return None + + def get_confidence_threshold(self) -> float: + return 1.0 + + def get_name(self) -> str: + return "" + + def get_decisions_ranked(self, context: AHContext) -> Optional[list[str]]: + return None + + +class LearnedHeuristicRegression(LearnedHeuristic): + def get_feedback(self, context: AHContext, choice: Choice) -> float: + return 1.0 + + def get_decision( + self, context: AHContext, choices: list[Choice] + ) -> Optional[Choice]: + choice2feedback = {} + for choice in choices: + predicted_feedback = self.get_feedback(context, choice) + choice2feedback[choice] = predicted_feedback + sorted_choices_feedback = sorted( + choice2feedback.items(), key=operator.itemgetter(1) + ) + highest_feedback = sorted_choices_feedback[-1][1] + second_highest_feedback = sorted_choices_feedback[-2][1] + if highest_feedback / second_highest_feedback > self.get_confidence_threshold(): + return sorted_choices_feedback[-1][0] + # We are not sure which choice is the best one + return None + + +class LearnedHeuristicDecision(LearnedHeuristic): + def get_choice(self, idx: int) -> Optional[str]: + return None + + def get_decision( + self, context: AHContext, choices: list[Choice] + ) -> Optional[Choice]: + best_choices = self.get_best_choices(context) + if not best_choices: + return None + (best_choice_proba, best_choice_idx) = best_choices[0] + if best_choice_proba <= self.get_confidence_threshold(): + return None + return self.get_choice(best_choice_idx) + + def get_decisions_ranked(self, context: AHContext) -> Optional[list[str]]: + feedback_idx_list = self.get_best_choices(context) + if feedback_idx_list is None: + return None + choices = [ + self.get_choice(feedback_idx[1]) for feedback_idx in feedback_idx_list + ] + choices = [choice for choice in choices if choice is not None] + return choices + + def get_best_choices(self, context: AHContext) -> Optional[list[tuple[float, int]]]: + return [] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/aoti_hipify_utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/aoti_hipify_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..eca4f85ced9260e9122db73366ab4a136b7cc4ab --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/aoti_hipify_utils.py @@ -0,0 +1,36 @@ +import re + +import torch + + +# It is not a good idea to directly apply hipify_torch to codegen, which will be vulnerable to cases like: +# "... +# from ..codecache import CudaKernelParamCache +# ..." +# In such cases, we do not need to hipify_torch the original class/file name in codegen/codecache + + +def maybe_hipify_code_wrapper(source_codes: str, force_hipify: bool = False) -> str: + if torch.version.hip is None and not force_hipify: + return source_codes + + try: + from torch.utils.hipify.hipify_python import PYTORCH_MAP, PYTORCH_TRIE + except ImportError: + # hipify not available for non-AMD builds + return source_codes + + def c2_repl(m: re.Match[str]) -> object: + return PYTORCH_MAP[m.group(0)] + + # We need to redefine RE_PYTORCH_PREPROCESSOR here since in hipify_torch, + # it will apply positive lookbehind (?<=\W) to the pattern to avoid matching + # keyword at the beginning of code line. However, this can happen in codegen, + # which will cause the pattern to not match. + + # Note that lookahead (?=\W) is still needed to keep hipification idomponent, for example + # we need to skip replacing "getStreamFromExternal" in "getStreamFromExternalMasqueradingAsCUDA" + RE_PYTORCH_PREPROCESSOR = re.compile(rf"({PYTORCH_TRIE.export_to_regex()})(?=\W)") + + source_codes = RE_PYTORCH_PREPROCESSOR.sub(c2_repl, source_codes) # type: ignore[arg-type] + return source_codes diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/aoti_runtime/interface.cpp b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/aoti_runtime/interface.cpp new file mode 100644 index 0000000000000000000000000000000000000000..515ab89d1f2d1187fe2855733ecbbc523fbeae0a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/aoti_runtime/interface.cpp @@ -0,0 +1,488 @@ +// Definition of AOTI runtime interface functions + +#include +#include + +#include +#include + +#define CONVERT_EXCEPTION_TO_ERROR_CODE(...) \ + try { \ + __VA_ARGS__ \ + } catch (const std::exception& e) { \ + std::cerr << "Error: " << e.what() << '\n'; \ + return AOTI_RUNTIME_FAILURE; \ + } catch (...) { \ + std::cerr << "Unknown exception occurred.\n"; \ + return AOTI_RUNTIME_FAILURE; \ + } \ + return AOTI_RUNTIME_SUCCESS; + +#define AOTI_VECTOR_SIZE_CHECK(actual_size, expected_size, name) \ + do { \ + AOTI_RUNTIME_CHECK( \ + actual_size == expected_size, \ + "expected " + std::string(name) + " vector size to be " + \ + std::to_string(expected_size) + ", but got " + \ + std::to_string(actual_size)); \ + } while (0) + +// AOTInductor uses at::addmm_out, which doesn't supports +// arguments that requires gradient. For this reason, we +// enforce no_grad context for run APIs. +// +// A RAII, thread local (!) guard that enables or disables grad mode upon +// construction, and sets it back to the original value upon destruction. +struct AOTINoGradGuard { + AOTINoGradGuard() { + aoti_torch_grad_mode_set_enabled(false); + } + AOTINoGradGuard(const AOTINoGradGuard&) = delete; + AOTINoGradGuard(AOTINoGradGuard&&) noexcept = delete; + ~AOTINoGradGuard() { + aoti_torch_grad_mode_set_enabled(prev_mode); + } + AOTINoGradGuard& operator=(const AOTINoGradGuard&) = delete; + AOTINoGradGuard& operator=(AOTINoGradGuard&&) noexcept = delete; + bool prev_mode{aoti_torch_grad_mode_is_enabled()}; +}; + +extern "C" { + +AOTIRuntimeError AOTInductorModelContainerCreate( + AOTInductorModelContainerHandle* container_handle, + size_t num_models, + bool is_cpu, + const char* cubin_dir) { + return AOTInductorModelContainerCreateWithDevice( + container_handle, + num_models, + is_cpu ? "cpu" : "cuda", + cubin_dir); +} + +AOTIRuntimeError AOTInductorModelContainerCreateWithDevice( + AOTInductorModelContainerHandle* container_handle, + size_t num_models, + const char* device_str, + const char* cubin_dir) { + + if (num_models == 0) { + std::cerr << "Error: num_models must be positive, but got 0\n"; + return AOTI_RUNTIME_FAILURE; + } + CONVERT_EXCEPTION_TO_ERROR_CODE({ + std::optional cubin_dir_opt; + if (cubin_dir != nullptr) { + cubin_dir_opt.emplace(cubin_dir); + } + auto* container = new torch::aot_inductor::AOTInductorModelContainer( + num_models, std::string(device_str), cubin_dir_opt); + *container_handle = + reinterpret_cast(container); + }) +} + + +AOTIRuntimeError AOTInductorModelContainerDelete( + AOTInductorModelContainerHandle container_handle) { + CONVERT_EXCEPTION_TO_ERROR_CODE({ + auto* container = + reinterpret_cast( + container_handle); + delete container; + }); +} + +AOTIRuntimeError AOTInductorModelContainerRun( + AOTInductorModelContainerHandle container_handle, + AtenTensorHandle* input_handles, // array of input AtenTensorHandle; handles + // are stolen; the array itself is borrowed + size_t num_inputs, + AtenTensorHandle* + output_handles, // array for writing output AtenTensorHandle; handles + // will be stolen by the caller; the array itself is + // borrowed + size_t num_outputs, + AOTInductorStreamHandle stream_handle, + AOTIProxyExecutorHandle proxy_executor_handle) { + auto* container = + reinterpret_cast( + container_handle); + AOTI_VECTOR_SIZE_CHECK(num_inputs, container->num_inputs(), "inputs"); + AOTI_VECTOR_SIZE_CHECK(num_outputs, container->num_outputs(), "outputs"); + + auto stream = + reinterpret_cast(stream_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ + AOTINoGradGuard guard; + container->run( + input_handles, output_handles, stream, proxy_executor_handle); + }) +} + +AOTIRuntimeError AOTInductorModelContainerRunSingleThreaded( + AOTInductorModelContainerHandle container_handle, + AtenTensorHandle* input_handles, // array of input AtenTensorHandle; handles + // are stolen; the array itself is borrowed + size_t num_inputs, + AtenTensorHandle* + output_handles, // array for writing output AtenTensorHandle; handles + // will be stolen by the caller; the array itself is + // borrowed + size_t num_outputs, + AOTInductorStreamHandle stream_handle, + AOTIProxyExecutorHandle proxy_executor_handle) { + auto* container = + reinterpret_cast( + container_handle); + AOTI_VECTOR_SIZE_CHECK(num_inputs, container->num_inputs(), "inputs"); + AOTI_VECTOR_SIZE_CHECK(num_outputs, container->num_outputs(), "outputs"); + + auto stream = + reinterpret_cast(stream_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ + AOTINoGradGuard guard; + container->run_single_threaded( + input_handles, output_handles, stream, proxy_executor_handle); + }) +} + +AOTIRuntimeError AOTInductorModelContainerGetNumConstants( + AOTInductorModelContainerHandle container_handle, + size_t* num_constants) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE( + { *num_constants = container->num_constants(); }) +} + +AOTIRuntimeError AOTInductorModelContainerGetConstantName( + AOTInductorModelContainerHandle container_handle, + size_t idx, + const char** name) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE( + { *name = container->constant_name(idx); }) +} + +AOTIRuntimeError AOTInductorModelContainerGetConstantOriginalFQN( + AOTInductorModelContainerHandle container_handle, + size_t idx, + const char** original_fqn) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE( + { *original_fqn = container->constant_original_fqn(idx); }) +} + +AOTIRuntimeError AOTInductorModelContainerGetConstantFromFolded( + AOTInductorModelContainerHandle container_handle, + size_t idx, + bool* from_folded) { + auto* container = + reinterpret_cast(container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ *from_folded = container->constant_from_folded(idx); }) +} + +AOTIRuntimeError AOTInductorModelContainerGetConstantType( + AOTInductorModelContainerHandle container_handle, + size_t idx, + int32_t* type) { + auto* container = + reinterpret_cast(container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ *type = container->constant_type(idx); }) +} + +AOTIRuntimeError AOTInductorModelContainerGetConstantDtype( + AOTInductorModelContainerHandle container_handle, + size_t idx, + int32_t* dtype) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE( + { *dtype = container->constant_dtype(idx); }) +} + +AOTIRuntimeError AOTInductorModelContainerGetConstantDataSize( + AOTInductorModelContainerHandle container_handle, + size_t idx, + size_t* data_size) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE( + { *data_size = container->constant_data_size(idx); }) +} + +AOTIRuntimeError AOTInductorModelContainerExtractConstantsMap( + AOTInductorModelContainerHandle container_handle, + AOTInductorConstantMapHandle constant_map_handle, + bool use_inactive) { + auto* container = + reinterpret_cast( + container_handle); + auto constants_map = reinterpret_cast*>(constant_map_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE( + { const auto ret = container->extract_constants_map(use_inactive); + for (const auto& pair: ret) { + constants_map->emplace(pair.first, pair.second); + } + }) +} + +AOTIRuntimeError AOTInductorModelContainerUpdateUserManagedConstantBuffer( + AOTInductorModelContainerHandle container_handle, + AOTInductorConstantMapHandle constant_map_handle, + bool use_inactive, + bool validate_full_update) { + auto* container = + reinterpret_cast( + container_handle); + auto input_map = reinterpret_cast*>(constant_map_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ + container->update_constant_buffer( + *input_map, use_inactive, validate_full_update, /* user_managed = */ true); + }) +} + +AOTIRuntimeError AOTInductorModelContainerUpdateUserManagedConstantBufferPairs( + AOTInductorModelContainerHandle container_handle, + const AOTInductorConstantMapEntry* pairs, + size_t num_pairs, + bool use_inactive, + bool validate_full_update) { + auto* container = + reinterpret_cast(container_handle); + // Build a local unordered_map inside + std::unordered_map input_map; + input_map.reserve(num_pairs); + for (size_t i = 0; i < num_pairs; ++i) { + input_map.emplace(pairs[i].name, pairs[i].handle); + } + CONVERT_EXCEPTION_TO_ERROR_CODE({ + container->update_constant_buffer( + input_map, use_inactive, validate_full_update, /*user_managed=*/true); + }) +} + +AOTIRuntimeError AOTInductorModelContainerUpdateConstantBuffer( + AOTInductorModelContainerHandle container_handle, + AOTInductorConstantMapHandle constant_map_handle, + bool use_inactive, + bool validate_full_update) { + auto* container = + reinterpret_cast( + container_handle); + auto input_map = reinterpret_cast*>(constant_map_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ + container->update_constant_buffer( + *input_map, use_inactive, validate_full_update); + }) +} + +AOTIRuntimeError AOTInductorModelContainerUpdateInactiveConstantBuffer( + AOTInductorModelContainerHandle container_handle, + AOTInductorConstantMapHandle constant_map_handle) { + return AOTInductorModelContainerUpdateConstantBuffer(container_handle, + constant_map_handle, + /*use_inactive*/ true, + /*validate_full_update*/ true); +} + +AOTIRuntimeError AOTInductorModelContainerFreeInactiveConstantBuffer( + AOTInductorModelContainerHandle container_handle) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ + container->free_inactive_constant_buffer(); + }) +} + +AOTIRuntimeError AOTInductorModelContainerRunConstantFolding( + AOTInductorModelContainerHandle container_handle, + bool use_inactive, + AOTInductorStreamHandle stream_handle, + AOTIProxyExecutorHandle proxy_executor_handle) { + auto* container = + reinterpret_cast( + container_handle); + auto stream = + reinterpret_cast(stream_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ + AOTINoGradGuard guard; + container->run_const_fold(use_inactive, stream, proxy_executor_handle); + }) +} + +AOTIRuntimeError AOTInductorModelContainerSwapConstantBuffer( + AOTInductorModelContainerHandle container_handle) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ + container->swap_constant_buffer(); + }) +} + +AOTIRuntimeError AOTInductorModelContainerGetNumInputs( + AOTInductorModelContainerHandle container_handle, + size_t* ret_num_inputs) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE( + { *ret_num_inputs = container->num_inputs(); }) +} + +AOTIRuntimeError AOTInductorModelContainerGetInputName( + AOTInductorModelContainerHandle container_handle, + size_t input_idx, + const char** ret_input_names) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE( + { *ret_input_names = container->input_name(input_idx); }) +} + +AOTIRuntimeError AOTInductorModelContainerGetNumOutputs( + AOTInductorModelContainerHandle container_handle, + size_t* ret_num_outputs) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE( + { *ret_num_outputs = container->num_outputs(); }) +} + +AOTIRuntimeError AOTInductorModelContainerGetOutputName( + AOTInductorModelContainerHandle container_handle, + size_t output_idx, + const char** ret_output_names) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE( + { *ret_output_names = container->output_name(output_idx); }) +} + +AOTIRuntimeError AOTInductorModelContainerGetCallSpec( + AOTInductorModelContainerHandle container_handle, + const char** in_spec, + const char** out_spec) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ + *in_spec = container->get_in_spec(); + *out_spec = container->get_out_spec(); + }) +} + +AOTIRuntimeError AOTInductorModelCreate( + AOTInductorModelHandle* model_handle, + AOTInductorConstantMapHandle constant_map_handle){ + CONVERT_EXCEPTION_TO_ERROR_CODE({ + auto constant_map = std::make_shared(); + auto constant_array = std::make_shared>(); + auto input_map = reinterpret_cast*>(constant_map_handle); + + auto model = new torch::aot_inductor::AOTInductorModel( + constant_map, + constant_array, + "cpu", // device_str is hardcoded, as AOTInductorModelCreate is only use for CPU models + "" + ); + + if (input_map) { + for (auto const& kv : *input_map) { + constant_map->emplace(kv.first, kv.second); + } + } else { + model->load_constants(); + } + + *model_handle = reinterpret_cast(model); + })} + +AOTIRuntimeError AOTInductorModelRun( + AOTInductorModelHandle model_handle, + AtenTensorHandle* input_handles, + AtenTensorHandle* output_handles) { + auto model = + reinterpret_cast(model_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ + AOTINoGradGuard guard; + model->run_impl( + input_handles, + output_handles, + (torch::aot_inductor::DeviceStreamType) nullptr, + nullptr); + }) +} + +AOTIRuntimeError AOTInductorModelDelete(AOTInductorModelHandle model_handle){ + CONVERT_EXCEPTION_TO_ERROR_CODE({ + auto model = reinterpret_cast( + model_handle); + delete model; + })} + +AOTIRuntimeError AOTInductorModelGetNumOutputs( + AOTInductorModelHandle model_handle, + size_t* ret_num_outputs) { + CONVERT_EXCEPTION_TO_ERROR_CODE({ + auto model = reinterpret_cast(model_handle); + *ret_num_outputs = model->num_outputs(); + }) +} + +AOTIRuntimeError AOTInductorModelUpdateConstantsMap( + AOTInductorModelHandle model_handle, + AOTInductorConstantMapHandle constant_map_handle) { + auto model = + reinterpret_cast(model_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ + auto constant_map = std::make_shared(); + auto input_map = + reinterpret_cast*>( + constant_map_handle); + + for (auto const& kv : *input_map) { + constant_map->emplace(kv.first, kv.second); + } + model->update_constants_map(std::move(constant_map)); + }) +} + +AOTIRuntimeError AOTInductorModelContainerGetConstantsBlobSize( + AOTInductorModelContainerHandle container_handle, + uint64_t* ret_size) { + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE( + { *ret_size = container->constant_blob_size(); }) +} + + +// Load weights from a single blob in weight_blob_ptr +AOTIRuntimeError AOTInductorModelUpdateConstantsFromBlob( + AOTInductorModelContainerHandle container_handle, + const uint8_t* weight_blob_ptr){ + auto* container = + reinterpret_cast( + container_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE( + {container->update_constants_from_blob(weight_blob_ptr); }) + } + + +} // extern "C" diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/block_analysis.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/block_analysis.py new file mode 100644 index 0000000000000000000000000000000000000000..b47c8325e21545a9ca30f513a22b22480b4d6ab0 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/block_analysis.py @@ -0,0 +1,192 @@ +import collections +import functools +import textwrap +from typing import Optional + +import sympy +from sympy import Expr, Symbol + +from torch.utils._sympy.functions import FloorDiv, ModularIndexing + +from ..utils import sympy_dot, sympy_subs +from ..virtualized import V + + +class BlockPatternMatcher: + """ + Matches block indexing expressions. + """ + + _indexing_wild_signed_int = functools.partial( + sympy.Wild, properties=[lambda x: x.is_integer] + ) + _indexing_wild_unsigned_int = functools.partial( + sympy.Wild, properties=[lambda x: x.is_integer and x.is_nonnegative] + ) + + @classmethod + def get_subexpr_involving_symbol(cls, expr: Expr, symbol: Symbol) -> Expr: + """ + Given a sympy expression, return the subexpression comprised only of terms + involving the specified symbol. + + For example, if `expr` is `x * 5 + x ** 2 + y * 2 + 5`, and `symbol` is `x`, + this returns `x * 5 + x ** 2`. + """ + expr = cls._preprocess(expr) + return sympy.S.Zero + sum( + term for term in sympy.Add.make_args(expr) if symbol in term.free_symbols + ) + + @staticmethod + def get_slice_numels(dims: list[Expr]) -> list[Expr]: + """ + Compute the cumulative size of each dimension's slice. + This proceeds from the last dim up to the second. + """ + numels = collections.deque([sympy.S.One]) + for dim in dims[:0:-1]: + numel = dim * numels[0] + numels.appendleft(numel) + return [*numels] + + @staticmethod + def _preprocess(expr: Expr) -> Expr: + # Remove any Identity nodes, e.g. expand x + (5 * y) to x + 5 * y. + return expr.expand(identity=True) + + @classmethod + def match_mod_div_block_expr( + cls, + index: Expr, + index_var: Symbol, + numel: Expr, + num_dims: int, + ) -> Optional[tuple[list[Expr], list[Expr], list[Expr]]]: + """ + Matches modular indexing expressions, converting them to implied block dimensions and strides. + See triton.py for more information. + """ + index = cls._preprocess(index) + + # Pattern match to find the strides and offset. + wild_unsigned_int = functools.partial( + cls._indexing_wild_unsigned_int, exclude=[index_var] + ) + wild_signed_int = functools.partial( + cls._indexing_wild_signed_int, exclude=[index_var] + ) + dims: list[Expr] = [ + wild_unsigned_int(f"dim_mod{idx}") for idx in range(num_dims) + ] + strides: list[Expr] = [ + wild_signed_int(f"stride_mod{idx}") for idx in range(num_dims) + ] + + # The first dimension's index is computed by division. + # The remaining are computed by modulo. + slice_numels = cls.get_slice_numels(dims[:num_dims]) + block_index_exprs = [FloorDiv(index_var, slice_numels[0])] + [ + ModularIndexing(index_var, numel, dim) + for dim, numel in zip(dims[1:], slice_numels[1:]) + ] + + # Calculate a linear index from block indices. + match_expr = sympy_dot(strides, block_index_exprs) + + # Heuristic: if the number of dimensions is high, check that the minimum requirements + # are met before attempting an expensive full match. see triton.py:match_mod_div_block + # for more details. In short, here we check that each subexpression in sympy.Add contains + # only FloorDiv or ModularIndexing expressions. + if num_dims >= 5: + stride = sympy.symbols("stride", cls=wild_signed_int) + denom, other = sympy.symbols("denominator other", cls=wild_unsigned_int) + mod_div_pattern = stride * ModularIndexing(index_var, denom, other) + floor_div_pattern = stride * FloorDiv(index_var, denom) + first_dim_floor_div_matched = False + match_failed = False + for arg in sympy.Add.make_args(index): + if arg.match(floor_div_pattern): + # There should only be a single FloorDiv(index, denom) expression + # corresponding to the first dimension + if first_dim_floor_div_matched: + match_failed = True + break + first_dim_floor_div_matched = True + elif arg.match(mod_div_pattern): + continue + else: + match_failed = True + break + + if match_failed: + return None + + # Pattern match. + match = index.match(match_expr) + if match is None: + return None + + # Provide default values for unmatched dims and strides. + for dim in dims[1:]: + if dim not in match: + match[dim] = sympy.S.One + for stride in strides[1:]: + if stride not in match: + match[stride] = sympy.S.Zero + + sizevars = V.graph.sizevars + + def get_match(expr: Expr) -> Expr: + return sizevars.lookup_precomputed_size(match[expr]) + + # Replace wildcards with matched expressions. + dims = [dims[0]] + [get_match(dim) for dim in dims[1:]] + strides = [get_match(stride) for stride in strides] + slice_numels = cls.get_slice_numels(dims) + block_index_exprs = [sympy_subs(expr, match) for expr in block_index_exprs] + + # The leading dimension is not directly matched in our expression. + # We solve for it by dividing the range tree numel by the product of + # all other dimensions. We quit if they are not known to be divisible. + assert dims[0] not in match, "Expected not to match the leading dimension!" + if not sizevars.statically_known_multiple_of(numel, slice_numels[0]): + return None + dims[0] = numel / slice_numels[0] + + # Sanity check that we can recover the index from the matched subexpressions. + matched_index = sympy_dot(strides, block_index_exprs) + assert sizevars.statically_known_equals( + # New precomputed replacements may be generated when the `get_match` function + # above is called, but the `index` that is being matched has not been updated. + # So remove them when checking for equivalence e.g. if ps0=3*s0 and + # index=3*s0*expr, matched_index=ps0*expr, then index == matched_index + sizevars.remove_precomputed_replacements(matched_index), + sizevars.remove_precomputed_replacements(index), + ), textwrap.dedent( + f""" + Invalid match! + Index: {index} + Matched expression: {matched_index} + """ + ) + + return dims, strides, block_index_exprs + + @classmethod + def match_affine_block_expr( + cls, + index: Expr, + index_var: Symbol, + ) -> Optional[Expr]: + """ + Matches simple expressions of the form stride * index, returning the + stride. + """ + index = cls._preprocess(index) + stride = cls._indexing_wild_signed_int(name="stride", exclude=[index_var]) + m = index.match(index_var * stride) + if m is None: + return None + + return m[stride] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/common.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/common.py new file mode 100644 index 0000000000000000000000000000000000000000..e27336af8eab90cf38d6799515df6f6992da0ee5 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/common.py @@ -0,0 +1,2918 @@ +from __future__ import annotations + +import atexit +import contextlib +import dataclasses +import enum +import functools +import itertools +import logging +import math +import operator +import os +import re +import tempfile +from abc import ABC, abstractmethod +from enum import auto, Enum +from itertools import chain +from typing import ( + Any, + cast, + ClassVar, + Generic, + NamedTuple, + Optional, + TYPE_CHECKING, + Union, +) +from typing_extensions import Self, TypeVar + +import sympy + +import torch +import torch.fx +from torch._prims_common import ELEMENTWISE_TYPE_PROMOTION_KIND +from torch.utils import _pytree as pytree +from torch.utils._config_module import ConfigModule +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.numbers import int_oo +from torch.utils._sympy.printers import PythonPrinter as _PythonPrinter +from torch.utils._sympy.symbol import free_symbol_is_type, symbol_is_type, SymT +from torch.utils._sympy.value_ranges import bound_sympy, ValueRanges + +from .. import config, metrics +from ..dtype_propagation import DtypePropagationOpsHandler +from ..ops_handler import BasicMathOpsMixin, DefaultHandler +from ..shape_propagation import ShapePropagationOpsHandler +from ..utils import ( + boolean_ops, + DeferredLineBase, + generate_assert, + get_current_backend, + IndentedBuffer, + ir_dataclass, + ScopedDict, + sympy_dot, + sympy_index_symbol, + sympy_subs, + triton_type, + unique, +) +from ..virtualized import ( + NullHandler, + ops, + OpsHandler, + OpsValue, + ReductionType, + StoreMode, + V, +) + + +if TYPE_CHECKING: + from collections.abc import Callable, Iterator, MutableMapping, Sequence + + from torch.fx import GraphModule + + from ..custom_graph_pass import CustomGraphModulePass + from ..ir import Buffer, ChoiceCaller, FixedLayout, IRNode + from ..loop_body import LoopBody + from ..scheduler import BaseScheduling, Scheduler, SchedulerNode + from ..shape_propagation import BlockShapeType + from .wrapper import PythonWrapperCodegen + + _T = TypeVar("_T") + SchedulingConstructor = Callable[[Optional[Scheduler]], BaseScheduling] + WrapperConstructor = type[PythonWrapperCodegen] + SymbolLike = Union[str, sympy.Symbol] + + # OpVarT should really be Union[CSEVariable, str], however this + # causes typing errors in subclasses (defined in other files). + OpVarT = str + +schedule_log = torch._logging.getArtifactLogger(__name__, "schedule") +log = logging.getLogger(__name__) + + +def data_type_logger(msg: str) -> None: + if schedule_log.isEnabledFor(logging.DEBUG): + schedule_log.debug("Data type propagation: %s", msg) + + +@dataclasses.dataclass +class FileBackedGraphModule: + """ + Output of FX wrapper codegen. Exposes the same methods as ModuleType, but these + map back to a GraphModule instead of Python source. + """ + + gm: GraphModule + compiled_fn: Callable[..., Any] + + def __post_init__(self) -> None: + # Write the code to a file for compatibility with debugging utilities. + # The file is deleted upon program termination. + self.tempfile = tempfile.NamedTemporaryFile( # noqa: SIM115 + mode="w+", suffix=".py", delete=False + ) + atexit.register(os.remove, self.tempfile.name) + with self.tempfile as f: + f.write(self.value) + + @property + def __file__(self) -> str: + return self.tempfile.name + + def call(self, args: list[Any]) -> Any: + return self.compiled_fn(*args) + + @property + def value(self) -> str: + return self.gm.code + + +class WorkspaceZeroMode(enum.Enum): + UNINITIALIZED = 0 + ZERO_ON_CALL = 1 # kernel may leave workspace dirty + ZERO_PER_GRAPH = 2 # must be re-zeroed by kernel + + @staticmethod + def combine(a: WorkspaceZeroMode, b: WorkspaceZeroMode) -> WorkspaceZeroMode: + if a == b or b == WorkspaceZeroMode.UNINITIALIZED: + return a + if a == WorkspaceZeroMode.UNINITIALIZED: + return b + raise NotImplementedError(f"WorkspaceZeroMode.combine({a!r}, {b!r})") + + @staticmethod + def from_bool(zero_fill: bool) -> WorkspaceZeroMode: + if zero_fill: + return WorkspaceZeroMode.ZERO_ON_CALL + return WorkspaceZeroMode.UNINITIALIZED + + +class CodegenSymbol(ABC): + """ + An IR object possibly corresponding to a variable in the wrapper code. + """ + + @abstractmethod + def get_name(self) -> str: + pass + + @abstractmethod + def get_example(self) -> Union[torch.Tensor, sympy.Symbol]: + pass + + +@ir_dataclass(frozen=True) +class WorkspaceArg(CodegenSymbol): + """A temporary buffer used for a single kernel, then discarded. + + Not registered as a traditional buffer since there are no users, + so it would be dead code eliminated. + + Args: + nbytes: The size of the buffer in bytes. + zero_fill: Whether the buffer should be initialized to zero. + + """ + + count: sympy.Expr + zero_mode: WorkspaceZeroMode + device: torch.device + outer_name: str + inner_name: str = "ws_ptr" + dtype: torch.dtype = torch.uint8 + + @staticmethod + def unique_name(prefix: str = "workspace_") -> str: + return f"{prefix}{next(V.graph.workspace_id)}" + + @staticmethod + def can_join(a: WorkspaceArg, b: WorkspaceArg) -> bool: + return ( + a.inner_name == b.inner_name and a.dtype == b.dtype and a.device == b.device + ) + + @staticmethod + def join(a: WorkspaceArg, b: WorkspaceArg) -> WorkspaceArg: + return WorkspaceArg( + count=a.count + b.count, + zero_mode=WorkspaceZeroMode.combine(a.zero_mode, b.zero_mode), + dtype=a.dtype, + device=a.device, + inner_name=a.inner_name, + outer_name=a.outer_name, + ) + + @staticmethod + def maximum(a: WorkspaceArg, b: WorkspaceArg) -> WorkspaceArg: + assert ( + a.dtype == b.dtype and a.device == b.device and a.inner_name == b.inner_name + ) + return WorkspaceArg( + count=sympy.Max(a.count, b.count), + zero_mode=WorkspaceZeroMode.combine(a.zero_mode, b.zero_mode), + dtype=a.dtype, + device=a.device, + inner_name=a.inner_name, + outer_name=a.outer_name, + ) + + # These methods let WorkspaceArg pretend it is a buffer to reuse allocation code + def get_device(self) -> torch.device: + return self.device + + get_device_or_error = get_device + + def get_dtype(self) -> torch.dtype: + return self.dtype + + def get_example(self) -> Union[torch.Tensor, sympy.Symbol]: + return self.get_layout().get_example() + + def get_layout(self) -> FixedLayout: + from ..ir import FixedLayout + + return FixedLayout( + device=self.device, + dtype=self.dtype, + size=[self.count], + stride=[1], + ) + + @property + def layout(self) -> FixedLayout: + return self.get_layout() + + get_output_spec = get_layout + maybe_get_output_spec = get_layout + maybe_get_layout = get_layout + + def get_offset(self) -> sympy.Expr: + return sympy.S.Zero + + def get_size(self) -> list[sympy.Expr]: + return [self.count] + + def get_stride(self) -> list[sympy.Expr]: + return [sympy.S.One] + + def get_name(self) -> str: + return self.outer_name + + def get_is_pinned(self) -> bool: + return False + + def get_inputs_that_alias_output(self) -> list[str]: + return [] + + +class TritonScratchWorkspace: + def __init__(self, size: int, generate_dtype_str: Callable[..., str]): + self.size = size + self._generate_dtype_str = generate_dtype_str + + def generate_dtype_str(self) -> str: + return self._generate_dtype_str() + + +@dataclasses.dataclass +class TensorArg: + name: str + buffer: str + dtype: torch.dtype + offset: sympy.Expr = sympy.S.Zero # c++ only + alias_of: Optional[str] = None # halide only + + +@dataclasses.dataclass +class SizeArg: + name: str + expr: sympy.Expr + + @property + def alias_of(self) -> Optional[str]: + return None + + +@dataclasses.dataclass +class ConstexprArg: + name: str + + +@dataclasses.dataclass +class TMADescriptorArg: + name: str + api_type: str # "experimental" or "stable" + block_shape: Optional[list[sympy.Expr]] # only needed for "stable" + dtype: Optional[torch.dtype] # only needed for "stable" + + +@dataclasses.dataclass +class DeviceCodegen: + scheduling: SchedulingConstructor + wrapper_codegen: WrapperConstructor + cpp_wrapper_codegen: Optional[WrapperConstructor] = None + fx_wrapper_codegen: Optional[WrapperConstructor] = None + + +KernelArgType = Union[WorkspaceArg, TensorArg, SizeArg, TMADescriptorArg, ConstexprArg] + +device_codegens: dict[str, DeviceCodegen] = {} + + +class DeviceOpOverrides: + def import_get_raw_stream_as(self, name: str) -> str: + raise NotImplementedError + + def set_device(self, device_idx: int) -> str: + raise NotImplementedError + + def synchronize(self) -> str: + raise NotImplementedError + + def device_guard(self, device_idx: int) -> str: + raise NotImplementedError + + def cpp_device_guard(self) -> str: + raise NotImplementedError + + def cpp_aoti_device_guard(self) -> str: + raise NotImplementedError + + def cpp_stream_guard(self) -> str: + raise NotImplementedError + + def cpp_aoti_stream_guard(self) -> str: + raise NotImplementedError + + def cpp_getStreamFromExternal(self) -> str: + raise NotImplementedError + + def kernel_header(self) -> str: + raise NotImplementedError + + def kernel_driver(self) -> str: + raise NotImplementedError + + def cpp_stream_type(self) -> str: + raise NotImplementedError + + def aoti_get_stream(self) -> str: + raise NotImplementedError + + def cpp_kernel_type(self) -> str: + raise NotImplementedError + + def cpp_device_ptr(self) -> str: + raise NotImplementedError + + def tma_descriptor_helpers(self) -> str: + raise NotImplementedError + + def cpp_scratch( + self, idx: int, workspace: TritonScratchWorkspace, prefix: Optional[str] = None + ) -> Optional[tuple[list[str], str]]: + # optionally return (scratch definition, arg name) + raise NotImplementedError + + +device_op_overrides_dict: dict[str, DeviceOpOverrides] = {} +custom_backend_passes: dict[str, Optional[CustomGraphModulePass]] = {} +custom_backend_codegen_configs: dict[str, Optional[ConfigModule]] = {} + + +# The code generated by Inductor consists of two main parts: kernel code and wrapper code. +# For any new backend looking to integrate with Inductor, customization of these two main +# parts are necessary to generate its specific code. +# +# Kernel code generation is determined by different Scheduling. Consequently, a new +# backend needs to provide a custom Scheduling for its unique kernel code generation. Currently, +# CppScheduling and TritonScheduling serve the C++/OpenMP and Triton backends, respectively. +# +# For the Wrapper, Inductor provides a PythonWrapperCodegen class to generate the Python wrapper code +# that bridges kernels. This allows out-of-tree backends to inherit from PythonWrapperCodegen, +# and override specific member functions to create backend-specific Python wrapper code. +# +# Other classes, such as CppKernel and TritonKernel, used for code generation, typically form part +# of the logic for either Scheduling or PythonWrapperCodegen. So the Scheduling and PythonWrapperCodegen interfaces +# provide flexibility to the backend. A backend can choose to implement these classes from scratch, +# or reuse them by extending and overriding as necessary. And Inductor provides the registration API, +# register_backend_for_device, to equip a new backend at runtime. +# +# Intel has developed a new backend on top of Triton to support Intel GPUs, leveraging these interfaces. +# This backend can be used as a reference: +# https://github.com/intel/intel-extension-for-pytorch/blob/5dcc9d57e5422cf295e1a1ee97896d6b6a554a85/intel_extension_for_pytorch/_inductor/__init__.py#L9 +def register_backend_for_device( + device: str, + device_scheduling: SchedulingConstructor, + device_wrapper_codegen: WrapperConstructor, + device_cpp_wrapper_codegen: Optional[WrapperConstructor] = None, + device_fx_wrapper_codegen: Optional[WrapperConstructor] = None, + device_custom_pass: Optional[CustomGraphModulePass] = None, + device_custom_config: Optional[ConfigModule] = None, +) -> None: + device_codegens[device] = DeviceCodegen( + device_scheduling, + device_wrapper_codegen, + device_cpp_wrapper_codegen, + device_fx_wrapper_codegen, + ) + custom_backend_passes[device] = device_custom_pass + if device_custom_config: + assert ( + isinstance(device_custom_config, ConfigModule) + and device_custom_config is not config + ), ( + f"{device_custom_config=} cannot be the same as the default inductor config {config=}" + ) + custom_backend_codegen_configs[device] = device_custom_config + + +class BackendFeature(Enum): + FOREACH = auto() + BUCKETIZE = auto() + INPLACE_BUFFERS = auto() + MASKED_SCATTER_WITH_INDEX = auto() + SCAN = auto() + SORT = auto() + TUPLE_REDUCTION = auto() + PREFER_STORE_LOOP_ORDER = auto() + TRITON_TEMPLATES = auto() + REDUCE_TO_SINGLE_ELEMENT = auto() + + +def get_backend_features( + device: Union[torch.device, str, None], +) -> OrderedSet[BackendFeature]: + if device is None: + return OrderedSet() + init_backend_registration() + if isinstance(device, torch.device): + device_type = device.type + else: + assert isinstance(device, str), type(device) + device_type = device + device = torch.device(device_type) + scheduling_ctor = get_scheduling_for_device(device_type) + assert scheduling_ctor + scheduling = scheduling_ctor(None) + return scheduling.get_backend_features(device) + + +def has_backend_feature( + device: Union[torch.device, str, None], feature: BackendFeature +) -> bool: + """See also V.graph.has_feature""" + assert isinstance(feature, BackendFeature) + return feature in get_backend_features(device) + + +def get_scheduling_for_device(device: str) -> Optional[SchedulingConstructor]: + return device_codegens[device].scheduling if device in device_codegens else None + + +def get_wrapper_codegen_for_device( + device: str, cpp_wrapper: bool = False, fx_wrapper: bool = False +) -> Optional[WrapperConstructor]: + if device in device_codegens: + wrapper_codegen_obj: DeviceCodegen = device_codegens[device] + if fx_wrapper: + return wrapper_codegen_obj.fx_wrapper_codegen + elif cpp_wrapper: + return wrapper_codegen_obj.cpp_wrapper_codegen + else: + return wrapper_codegen_obj.wrapper_codegen + return None + + +def get_custom_backend_pass_for_device(device: str) -> Optional[CustomGraphModulePass]: + return custom_backend_passes.get(device) + + +def get_custom_backend_config_for_device(device: str) -> Optional[ConfigModule]: + return custom_backend_codegen_configs.get(device) + + +@functools.cache +def init_backend_registration() -> None: + """ + Register the backend for different devices, including the scheduling + for kernel code generation and the host side wrapper code generation. + """ + from .cpp import CppScheduling + from .cpp_wrapper_cpu import CppWrapperCpu + from .cpp_wrapper_cpu_array_ref import CppWrapperCpuArrayRef + from .cpp_wrapper_gpu import CppWrapperGpu + from .cpp_wrapper_mps import CppWrapperMps + from .cuda_combined_scheduling import CUDACombinedScheduling + from .halide import HalideScheduling + from .mps import MetalScheduling + from .pallas import PallasScheduling + from .python_wrapper_mtia import PythonWrapperMtia + from .triton import TritonScheduling + from .wrapper import PythonWrapperCodegen + from .wrapper_fxir import WrapperFxCodegen + + if get_scheduling_for_device("cpu") is None: + cpu_backends = { + "cpp": CppScheduling, + "halide": HalideScheduling, + "triton": TritonScheduling, + "pallas": PallasScheduling, + } + register_backend_for_device( + "cpu", + lambda scheduling: cpu_backends[config.cpu_backend](scheduling), + PythonWrapperCodegen, + CppWrapperCpuArrayRef + if config.aot_inductor.allow_stack_allocation + else CppWrapperCpu, + WrapperFxCodegen, + ) + + if get_scheduling_for_device("cuda") is None: + # CUDACombinedScheduling combines Triton and CUDA C++ scheduling for CUDA devices via delegation + cuda_backends = { + "triton": CUDACombinedScheduling, + "halide": HalideScheduling, + "pallas": PallasScheduling, + } + register_backend_for_device( + "cuda", + lambda scheduling: cuda_backends[config.cuda_backend](scheduling), + PythonWrapperCodegen, + CppWrapperGpu, + WrapperFxCodegen, + ) + + if get_scheduling_for_device("xpu") is None: + register_backend_for_device( + "xpu", + TritonScheduling, + PythonWrapperCodegen, + CppWrapperGpu, + WrapperFxCodegen, + ) + + if get_scheduling_for_device("mps") is None: + register_backend_for_device( + "mps", + MetalScheduling, + PythonWrapperCodegen, + CppWrapperMps, + WrapperFxCodegen, + ) + + if get_scheduling_for_device("mtia") is None: + register_backend_for_device( + "mtia", + TritonScheduling, + PythonWrapperMtia, + CppWrapperGpu, + WrapperFxCodegen, + ) + + private_backend = torch._C._get_privateuse1_backend_name() + if ( + private_backend != "privateuseone" + and get_scheduling_for_device(private_backend) is None + ): + from torch.utils.backend_registration import _get_custom_mod_func + + try: + device_scheduling = _get_custom_mod_func("Scheduling") + wrapper_codegen = _get_custom_mod_func("PythonWrapperCodegen") + cpp_wrapper_codegen = _get_custom_mod_func("CppWrapperCodegen") + fx_wrapper_codegen = _get_custom_mod_func("WrapperFxCodegen") + if device_scheduling and wrapper_codegen and cpp_wrapper_codegen: + register_backend_for_device( + private_backend, + device_scheduling, + wrapper_codegen, + cpp_wrapper_codegen, + fx_wrapper_codegen, + ) + except RuntimeError: + pass + + +def index_prevent_reordering( + index: Sequence[sympy.Expr], + index_vars: Sequence[sympy.Expr], + sizes: Sequence[sympy.Expr], +) -> list[sympy.Expr]: + from ..ir import FlexibleLayout + + # added contiguous index prevents reordering + return [*index, sympy_dot(index_vars, FlexibleLayout.contiguous_strides(sizes))] + + +def register_device_op_overrides( + device: str, device_op_overrides: DeviceOpOverrides +) -> None: + device_op_overrides_dict[device] = device_op_overrides + + +def get_device_op_overrides(device: str) -> DeviceOpOverrides: + assert isinstance(device, str), type(device) + + if not device_op_overrides_dict: + from . import cpu_device_op_overrides, mps_device_op_overrides # noqa: F401 + from .cuda import device_op_overrides # noqa: F401 + from .mtia import device_op_overrides as mtia_op_overrides # noqa: F401 + from .xpu import device_op_overrides as xpu_op_overrides # noqa: F401 + + return device_op_overrides_dict[device] + + +DTYPE_TO_COMPUTATION_DTYPE: dict[torch.dtype, torch.dtype] = { + torch.bfloat16: torch.float, + torch.float16: torch.float, + **{ + dtype: dtype + for dtype in [ + torch.bool, + torch.float32, + torch.float64, + torch.int8, + torch.int16, + torch.int32, + torch.int64, + torch.uint8, + torch.uint16, + torch.uint32, + torch.uint64, + ] + }, +} + + +def deduce_output_dtype_by_name( + op_name: str, + *args: Any, + **kwargs: Any, +) -> Optional[torch.dtype]: + """ + Given op name and a list of input dtypes, deduce the output dtype + """ + if op_name in boolean_ops(): + return torch.bool + elif op_name in ( + "to_dtype", + "index_expr", + ): + return kwargs["dtype"] if "dtype" in kwargs else args[-1] + elif op_name in ( + "rand", + "randn", + ): + return torch.float + elif op_name in ( + "get_index", + "randint64", + "load_seed", + ): + return torch.int64 + elif op_name == "reduction": + return kwargs["dtype"] if "dtype" in kwargs else args[1] + elif op_name == "constant": + return kwargs["dtype"] if "dtype" in kwargs else args[-1] + elif op_name in ( + "load", + "store", + "store_reduction", + ): + buf_name = args[1] + return V.graph.get_dtype(buf_name) # type: ignore[arg-type] + elif op_name == "to_dtype_bitcast": + return kwargs["dtype"] if "dtype" in kwargs else args[-2] + return None + + +def check_dtype( + buffer: IndentedBuffer, var: CSEVariableType, dtype: torch.dtype +) -> None: + backend = get_current_backend() + if config.test_configs.runtime_triton_dtype_assert and backend == "triton": + buffer.writeline(f"tl.static_assert({var}.dtype == {triton_type(dtype)})") + elif config.test_configs.static_cpp_dtype_assert and backend == "cpp": + from .cpp_utils import CppCSEVariable, DTYPE_TO_CPP + + assert isinstance(var, CppCSEVariable), type(var) + if dtype == torch.bool: + if var.is_vec: + is_same_dt = f"IsVecMaskType::value" + else: + # operator&(bool, bool) returns int and it can be used as boolean in C++ + is_same_dt = f"std::is_same_v || std::is_same_v" + else: + c_var_type = f"decltype({var})" + if var.is_vec: + c_var_type = f"typename {c_var_type}::value_type" + is_same_dt = f"std::is_same_v<{c_var_type}, {DTYPE_TO_CPP[dtype]}>" + + buffer.writeline(f"static_assert({is_same_dt});") + + +def check_shape( + buffer: IndentedBuffer, var: CSEVariableType, shape: BlockShapeType +) -> None: + backend = get_current_backend() + assert shape is not None + if config.test_configs.runtime_triton_shape_assert and backend == "triton": + shape_str = ( + ", ".join(str(d) for d in shape) if len(shape) != 1 else f"{shape[0]}," + ) + buffer.writeline(f"tl.static_assert({var}.shape == ({shape_str}))") + + +def check_nan(buffer: IndentedBuffer, var: CSEVariableType) -> None: + backend = get_current_backend() + if backend == "triton": + msg = "NaN or Inf found" + buffer.writeline( + f"tl.device_assert(({var} == {var}) & ({var} != float('inf')) & ({var} != float('-inf')), '{msg}')" + ) + + +class DataTypePropagation: + def __init__(self, body: LoopBody) -> None: + self.body = body + self.graphs: dict[Union[Callable[..., Any], str], Any] = { + "root": body.root_block.graph + } + for k, v in body.subblocks.items(): + self.graphs[k] = v.graph + + def deduce_node_dtype_by_inputs(self, node: torch.fx.Node) -> Optional[torch.dtype]: + inputs = node.all_input_nodes + input_nodes = [ + n for n in inputs if isinstance(n, torch.fx.Node) and n.op != "placeholder" + ] + if len(input_nodes) == 0: + return None + + all_input_nodes_propagated = all( + OptimizationContext.key in n.meta + and n.meta[OptimizationContext.key].dtype is not None + for n in input_nodes + ) + if not all_input_nodes_propagated: + return None + + return functools.reduce( + torch.promote_types, + [n.meta[OptimizationContext.key].dtype for n in input_nodes], + ) + + def deduce_node_dtype_by_subgraph(self, node: torch.fx.Node) -> torch.dtype: + sub_graph = self.graphs[node.target] + dtype = self.propagate_graph(sub_graph) + assert dtype + return dtype + + def deduce_node_dtype(self, node: torch.fx.Node) -> Optional[torch.dtype]: + if node.op == "placeholder": + return None + + if node.target == "output" and len(node.args) != 1: + # we can infer output node if it only have 1 arg + return None + + if node.target is operator.getitem: + node_arg = node.args[0] + assert isinstance(node_arg, torch.fx.Node), type(node_arg) + return self.deduce_node_dtype(node_arg) + + assert isinstance(node.target, str), type(node.target) + + if node.target.startswith("masked_subblock"): + return self.deduce_node_dtype_by_subgraph(node) + + if ( + output_dtype := deduce_output_dtype_by_name( + node.target, + *node.args, + **node.kwargs, + ) + ) is not None: + return output_dtype + + return self.deduce_node_dtype_by_inputs(node) + + def propagate_graph(self, graph: torch.fx.Graph) -> Optional[torch.dtype]: + assert graph.nodes + graph_dtype: Optional[torch.dtype] = None + # For masked_subblock, we use output's dtype to represent + # the dtype of this subgraph. For other cases, graph_dtype + # might be None + for node in graph.nodes: + if OptimizationContext.key in node.meta: + opt_ctx = node.meta[OptimizationContext.key] + else: + opt_ctx = OptimizationContext() + + opt_ctx.dtype = self.deduce_node_dtype(node) + node.meta[OptimizationContext.key] = opt_ctx + if node.target == "output": + graph_dtype = opt_ctx.dtype + return graph_dtype + + def propagate(self) -> Optional[torch.dtype]: + return self.propagate_graph(self.graphs["root"]) + + @classmethod + def propagate_loopbody(cls, body: LoopBody) -> Optional[torch.dtype]: + return cls(body).propagate() + + @classmethod + def propagate_scheduler_node(cls, node: SchedulerNode) -> Optional[torch.dtype]: + from ..loop_body import LoopBody + from ..scheduler import SchedulerNode + + assert isinstance(node, SchedulerNode), type(node) + assert isinstance(node._body, LoopBody), type(node._body) + return DataTypePropagation.propagate_loopbody(node._body) + + +class PythonPrinter(_PythonPrinter): + def doprint( + self, expr: sympy.Expr, *, simplify: bool = True, p: bool = True + ) -> str: + # TODO: why are people passing strings to the printer here :think: + if simplify and isinstance(expr, sympy.Expr) and hasattr(V.graph, "sizevars"): + expr = V.graph.sizevars.simplify(expr) + return super().doprint(expr) + + def parenthesize(self, item: sympy.Expr, level: int, strict: bool = False) -> str: + if isinstance(item, sympy.Mod): + # use parenthesis to enforce precedence. + # in sympy 1.13.3, -2*Mod(x,y) becomes -2*x%y, which is wrong. + return f"({self._print(item)})" + else: + return super().parenthesize(item, level, strict) + + +class OpDecompositions: + """ + Decomposes inductor ops + """ + + @staticmethod + def identity(value: OpVarT) -> OpVarT: + # used to trigger cse + return value + + @staticmethod + def reciprocal(x: OpVarT) -> OpVarT: + return ops.truediv(ops.constant(1, torch.int32), x) + + @staticmethod + def square(x: OpVarT) -> OpVarT: + return ops.mul(x, x) + + @staticmethod + def erfc(x: OpVarT) -> OpVarT: + return ops.sub(ops.constant(1, torch.float32), ops.erf(x)) + + @staticmethod + def erfcx(x: OpVarT) -> OpVarT: + return ops.mul(ops.exp(ops.square(x)), ops.erfc(x)) + + @staticmethod + def expm1(x: OpVarT) -> OpVarT: + return ops.sub(ops.exp(x), ops.constant(1, torch.float32)) + + @staticmethod + def log10(x: OpVarT) -> OpVarT: + return ops.mul(ops.log(x), ops.constant(1 / math.log(10), torch.float32)) + + @staticmethod + def log2(x: OpVarT) -> OpVarT: + return ops.mul(ops.log(x), ops.constant(1 / math.log(2), torch.float32)) + + @staticmethod + def exp2(x: OpVarT) -> OpVarT: + return ops.exp(ops.mul(x, ops.constant(math.log(2), torch.float32))) + + @staticmethod + def log1p(x: OpVarT) -> OpVarT: + return ops.log(ops.add(x, ops.constant(1, torch.int32))) + + @staticmethod + def sigmoid(x: OpVarT) -> OpVarT: + one = ops.constant(1, torch.int32) + return ops.truediv(one, ops.add(one, ops.exp(ops.neg(x)))) + + @staticmethod + def relu(x: OpVarT) -> OpVarT: + return ops.maximum(x, ops.constant(0, torch.int32)) + + @staticmethod + def fma(x: OpVarT, y: OpVarT, z: OpVarT) -> OpVarT: + # for backends that don't override this (halide) + return ops.add(ops.mul(x, y), z) + + @staticmethod + def floor_to_int(a: OpVarT, dtype: torch.dtype) -> OpVarT: + return ops.to_dtype(ops.floor(a), dtype) + + @staticmethod + def ceil_to_int(a: OpVarT, dtype: torch.dtype) -> OpVarT: + return ops.to_dtype(ops.ceil(a), dtype) + + @staticmethod + def trunc_to_int(a: OpVarT, dtype: torch.dtype) -> OpVarT: + return ops.to_dtype(ops.trunc(a), dtype) + + @staticmethod + def remainder(a: OpVarT, b: OpVarT) -> OpVarT: + r = ops.mod(a, b) + cond = ops.and_( + ops.ne(r, ops.constant(0, torch.int32)), + ops.ne(ops.signbit(r), ops.signbit(b)), + ) + return ops.where(cond, ops.add(r, b), r) + + @staticmethod + def round_to_int(a: OpVarT, dtype: torch.dtype) -> OpVarT: + return ops.to_dtype(ops.round(a), dtype) + + +_RE_PAREN_NOT_NEEDED = re.compile(r"[a-z0-9_.]+|\([^)]*\)|", flags=re.IGNORECASE) + + +def _all_in_parens(string: str) -> bool: + if string[0] != "(" or len(string) < 2: + return False + count = 1 + for i, char in enumerate(string[1:]): + if char == "(": + count += 1 + elif char == ")": + count -= 1 + if count == 0 and i != len(string) - 2: + return False + assert count == 0 + return True + + +class OpOverrides(BasicMathOpsMixin, OpDecompositions, OpsHandler[Any]): + @staticmethod + def paren(string: OpVarT) -> OpVarT: + if ( + isinstance(string, CSEVariable) + or _RE_PAREN_NOT_NEEDED.fullmatch(string) + or _all_in_parens(string) + ): + # don't put extra parens for strings that are already wrapped in parens + # pyrefly: ignore [bad-return] + return string + return f"({string})" + + @staticmethod + def constant(value: Union[bool, float, int], dtype: torch.dtype) -> OpVarT: + return repr(value) + + @staticmethod + def bitwise_not(x: OpVarT) -> OpVarT: + return f"~{OpOverrides.paren(x)}" + + @staticmethod + def logical_not(a: OpVarT) -> OpVarT: + return f"{OpOverrides.paren(a)} == 0" + + @staticmethod + def bitwise_and(x: OpVarT, y: OpVarT) -> OpVarT: + return f"{OpOverrides.paren(x)} & {OpOverrides.paren(y)}" + + @staticmethod + def bitwise_or(x: OpVarT, y: OpVarT) -> OpVarT: + return f"{OpOverrides.paren(x)} | {OpOverrides.paren(y)}" + + @staticmethod + def bitwise_xor(x: OpVarT, y: OpVarT) -> OpVarT: + return f"{OpOverrides.paren(x)} ^ {OpOverrides.paren(y)}" + + @staticmethod + def bitwise_left_shift(x: OpVarT, y: OpVarT) -> OpVarT: + return f"{OpOverrides.paren(x)} << {OpOverrides.paren(y)}" + + @staticmethod + def bitwise_right_shift(x: OpVarT, y: OpVarT) -> OpVarT: + return f"{OpOverrides.paren(x)} >> {OpOverrides.paren(y)}" + + @staticmethod + def int_truediv(a: OpVarT, b: OpVarT) -> OpVarT: + # TODO: this is wrong + # TODO: an easy bandaid is to generate runtime asserts that it's + # <= 2**53, which is when this equation is correct + return ops.truediv(a, b) + + @staticmethod + def load_seed(name: str, offset: OpVarT) -> OpVarT: + return ops.load(name, sympy.Integer(offset)) + + def indirect_indexing( + self, + var: OpVarT, + size: Union[sympy.Expr, int], + check: bool = True, + wrap_neg: bool = True, + ) -> sympy.Symbol: + return sympy_index_symbol(str(var)) + + def check_bounds( + self, expr: sympy.Expr, size: sympy.Expr, lower: bool, upper: bool + ) -> None: + raise NotImplementedError( + f"{type(self).__name__}: check_bounds should be handled by CSEProxy" + ) + + def load(self, name: str, index: sympy.Expr) -> OpVarT: + raise NotImplementedError( + f"{type(self).__name__}: load should be handled by CSEProxy" + ) + + def store( + self, name: str, index: sympy.Expr, value: OpVarT, mode: StoreMode = None + ) -> None: + raise NotImplementedError( + f"{type(self).__name__}: store should be handled by CSEProxy" + ) + + def device_assert_async(self, cond: CSEVariable, msg: str) -> None: + raise NotImplementedError( + f"{type(self).__name__}: device_assert_async should be handled by CSEProxy" + ) + + def store_reduction(self, name: str, index: sympy.Expr, value: OpVarT) -> None: + raise NotImplementedError( + f"{type(self).__name__}: store_reduction should be handled by CSEProxy" + ) + + def reduction( + self, + dtype: torch.dtype, + src_dtype: torch.dtype, + reduction_type: ReductionType, + value: Union[OpVarT, tuple[OpVarT, ...]], + ) -> Union[OpVarT, tuple[OpVarT, ...]]: + raise NotImplementedError( + f"{type(self).__name__}: reduction should be handled by CSEProxy" + ) + + def scan( + self, + dtypes: tuple[torch.dtype, ...], + combine_fn: Callable[ + [tuple[OpVarT, ...], tuple[OpVarT, ...]], + tuple[OpVarT, ...], + ], + values: tuple[OpVarT, ...], + ) -> tuple[OpVarT, ...]: + raise NotImplementedError( + f"{type(self).__name__}: scan should be handled by CSEProxy" + ) + + def sort( + self, + dtypes: tuple[torch.dtype, ...], + values: tuple[OpVarT, ...], + stable: bool, + descending: bool, + ) -> tuple[OpVarT, ...]: + raise NotImplementedError( + f"{type(self).__name__}: sort should be handled by CSEProxy" + ) + + def bucketize( + self, + values: OpVarT, + boundaries: tuple[str, sympy.Expr, sympy.Expr, sympy.Expr], + boundary_indices: OpVarT, + indexing_dtype: torch.dtype, + right: bool, + sorter: Optional[tuple[str, sympy.Expr]] = None, + sorter_indices: Optional[OpVarT] = None, + ) -> OpVarT: + raise NotImplementedError( + f"{type(self).__name__}: bucketize should be handled by CSEProxy" + ) + + def halide_clamp(self, value: OpVarT, size: sympy.Expr, check: bool) -> OpVarT: + raise NotImplementedError( + f"{type(self).__name__}: halide_clamp only implemented for Halide backend" + ) + + def dot(self, x: OpVarT, y: OpVarT) -> OpVarT: + raise NotImplementedError( + f"{type(self).__name__}: dot only implemented for Triton backend" + ) + + def inline_asm_elementwise( + self, + *inputs: OpVarT, + asm: str, + constraints: Optional[str] = None, + dtype: torch.dtype = torch.float32, + is_pure: bool = True, + pack: int = 1, + ) -> OpVarT: + raise NotImplementedError( + f"{type(self).__name__}: inline_asm_elementwise only implemented for Triton backend" + ) + + def output(self, *args: OpVarT) -> None: + raise AssertionError( + f"{type(self).__name__}: ops.output should not appear at codegen time" + ) + + def placeholder(self, index: int) -> OpVarT: + raise AssertionError( + f"{type(self).__name__}: ops.placeholder should not appear at codegen time" + ) + + @staticmethod + def _unimplemented(name: str) -> Callable[..., OpVarT]: + def unimplemented(self: OpOverrides, *args: Any, **kwargs: Any) -> OpVarT: + raise NotImplementedError( + f"{type(self).__name__} does not implement ops.{name}" + ) + + unimplemented.__name__ = name + unimplemented.is_unimplemented = True # type: ignore[attr-defined] + return unimplemented + + @classmethod + def _is_unimplemented(cls, name: str) -> bool: + fn = getattr(cls, name, None) + default_fn = getattr(OpsHandler, name, None) + return not fn or fn == default_fn or getattr(fn, "is_unimplemented", False) + + @classmethod + def _initialize_pointwise_overrides(cls, target: str) -> None: + assert target in ("triton", "cpp", "cppvec", "halide", "mps"), target + + for funcname, data in pointwise_overrides_data.items(): + impl = getattr(data, target) + if impl is None: + if cls._is_unimplemented(funcname): + setattr(cls, funcname, cls._unimplemented(funcname)) + else: + assert funcname not in cls.__dict__, ( + f"multiple definitions of {funcname} on {cls.__name__}" + ) + impl.__name__ = funcname + setattr(cls, funcname, staticmethod(impl)) + + +@dataclasses.dataclass +class OverridesData: + name: str + cpp: Callable[..., str] + # None when not impl in libdevice/triton + triton: Optional[Callable[..., str]] = None + # None when not impl in aten/.../vec + cppvec: Optional[Callable[..., str]] = None + type_promotion_kind: ELEMENTWISE_TYPE_PROMOTION_KIND = ( + ELEMENTWISE_TYPE_PROMOTION_KIND.DEFAULT + ) + halide: Optional[Callable[..., str]] = None + mps: Optional[Callable[..., str]] = None + + +# NB: if you add a new special function, don't forget to update +# torch._inductor.ops_handler too +pointwise_overrides_data: dict[str, OverridesData] = dict( + airy_ai=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"airy_ai_forward({x})", + name="special_airy_ai", + ), + bessel_j0=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"bessel_j0_forward({x})", + triton=lambda x: f"libdevice.j0({x})", + name="special_bessel_j0", + ), + bessel_j1=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"bessel_j1_forward({x})", + triton=lambda x: f"libdevice.j1({x})", + name="special_bessel_j1", + ), + bessel_y0=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"bessel_y0_forward({x})", + triton=lambda x: f"libdevice.y0({x})", + name="special_bessel_y0", + ), + bessel_y1=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"bessel_y1_forward({x})", + triton=lambda x: f"libdevice.y1({x})", + name="special_bessel_y1", + ), + digamma=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"calc_digamma({x})", + cppvec=lambda x: f"{x}.digamma()", + name="digamma", + ), + # no cpp nor triton implementation for entr, it is defined as decomposition + # erf, erfc + erfcx=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"calc_erfcx({x})", + triton=lambda x: f"libdevice.erfcx({x})", + name="special_erfcx", + ), + fma=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y, z: f"std::fma({x}, {y}, {z})", + cppvec=lambda x, y, z: f"fmadd({x}, {y}, {z})", + triton=lambda x, y, z: f"libdevice.fma({x}, {y}, {z})", + name="fma", + ), + # erfinv, exp2, expit, gammaln + igamma=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"calc_igamma({x}, {y})", + name="igamma", + ), + igammac=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"calc_igammac({x}, {y})", + name="igammac", + ), + gammainc=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"calc_igamma({x}, {y})", + name="special_gammainc", + ), + gammaincc=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"calc_igammac({x}, {y})", + name="special_gammaincc", + ), + i0=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"calc_i0({x})", + triton=lambda x: f"libdevice.cyl_bessel_i0({x})", + cppvec=lambda x: f"{x}.i0()", + name="i0", + ), + i0e=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"calc_i0e({x})", + cppvec=lambda x: f"{x}.i0e()", + name="special_i0e", + ), + i1=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"calc_i1({x})", + triton=lambda x: f"libdevice.cyl_bessel_i1({x})", + name="special_i1", + ), + i1e=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"calc_i1e({x})", + name="special_i1e", + ), + log_ndtr=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"calc_log_ndtr({x})", + name="special_log_ndtr", + ), + # logit + modified_bessel_i0=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"modified_bessel_i0_forward({x})", + triton=lambda x: f"libdevice.cyl_bessel_i0({x})", + name="special_modified_bessel_i0", + ), + modified_bessel_i1=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"modified_bessel_i1_forward({x})", + triton=lambda x: f"libdevice.cyl_bessel_i1({x})", + name="special_modified_bessel_i1", + ), + modified_bessel_k0=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"modified_bessel_k0_forward({x})", + name="special_modified_bessel_k0", + ), + modified_bessel_k1=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"modified_bessel_k1_forward({x})", + name="special_modified_bessel_k1", + ), + # multigamma + ndtr=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"calc_ndtr({x})", + name="special_ndtr", + ), + ndtri=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"calc_ndtri({x})", + name="special_ndtri", + ), + polygamma=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, + y: f"{x} == 0 ? calc_digamma({y}) : ({x} == 1 ? trigamma({y}) : calc_polygamma({y}, {x}))", + name="polygamma", + ), + # psi - alias to digamma + # round + scaled_modified_bessel_k0=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"scaled_modified_bessel_k0_forward({x})", + name="special_scaled_modified_bessel_k0", + ), + scaled_modified_bessel_k1=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"scaled_modified_bessel_k1_forward({x})", + name="special_scaled_modified_bessel_k1", + ), + # sinc + spherical_bessel_j0=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x: f"spherical_bessel_j0_forward({x})", + name="special_spherical_bessel_j0", + ), + zeta=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"zeta({x}, {y})", + name="special_zeta", + ), + chebyshev_polynomial_t=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"chebyshev_polynomial_t_forward({x}, {y})", + name="special_chebyshev_polynomial_t", + ), + chebyshev_polynomial_u=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"chebyshev_polynomial_u_forward({x}, {y})", + name="special_chebyshev_polynomial_u", + ), + chebyshev_polynomial_v=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"chebyshev_polynomial_v_forward({x}, {y})", + name="special_chebyshev_polynomial_v", + ), + chebyshev_polynomial_w=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"chebyshev_polynomial_w_forward({x}, {y})", + name="special_chebyshev_polynomial_w", + ), + legendre_polynomial_p=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"legendre_polynomial_p_forward({x}, {y})", + name="special_legendre_polynomial_p", + ), + shifted_chebyshev_polynomial_t=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"shifted_chebyshev_polynomial_t_forward({x}, {y})", + name="special_shifted_chebyshev_polynomial_t", + ), + shifted_chebyshev_polynomial_u=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"shifted_chebyshev_polynomial_u_forward({x}, {y})", + name="special_shifted_chebyshev_polynomial_u", + ), + shifted_chebyshev_polynomial_v=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"shifted_chebyshev_polynomial_v_forward({x}, {y})", + name="special_shifted_chebyshev_polynomial_v", + ), + shifted_chebyshev_polynomial_w=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"shifted_chebyshev_polynomial_w_forward({x}, {y})", + name="special_shifted_chebyshev_polynomial_w", + ), + hermite_polynomial_h=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"hermite_polynomial_h_forward({x}, {y})", + name="special_hermite_polynomial_h", + ), + hermite_polynomial_he=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"hermite_polynomial_he_forward({x}, {y})", + name="special_hermite_polynomial_he", + ), + laguerre_polynomial_l=OverridesData( + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + cpp=lambda x, y: f"laguerre_polynomial_l_forward({x}, {y})", + name="special_laguerre_polynomial_l", + ), +) + + +def is_buffer_removed(name: str) -> bool: + return any( + name in x + for x in ( + V.graph.removed_buffers, + V.kernel.removed_buffers, + V.graph.inplaced_to_remove, + V.kernel.inplaced_to_remove, + ) + ) + + +class DeferredLine(DeferredLineBase): + """A line that can be 'unwritten' by adding name to V.graph.removed_buffers""" + + def __init__(self, name: str, line: str): + super().__init__(line) + self.name = name + assert not isinstance(line, DeferredLineBase) + + def __call__(self) -> Optional[str]: + if not is_buffer_removed(self.name): + return self.line + return None + + def _new_line(self, line: str) -> DeferredLine: + return DeferredLine(self.name, line) + + +class BracesBuffer(IndentedBuffer): + def indent(self, offset: int = 1) -> contextlib.AbstractContextManager[None]: + @contextlib.contextmanager + def ctx() -> Iterator[None]: + for _ in range(offset): + self.writeline("{") + self._indent += 1 + for _ in range(-offset): + self._indent -= 1 + self.writeline("}") + yield + for _ in range(-offset): + self.writeline("{") + self._indent += 1 + for _ in range(offset): + self._indent -= 1 + self.writeline("}") + + return ctx() + + +class InplacedBuffer(NamedTuple): + inner_name: str + other_names: list[str] + + +@dataclasses.dataclass +class ArgName: + name: str + # is_constexpr=True is used to attach a " : tl.constexpr" into the argument list + is_constexpr: bool = False + + def full_name(self) -> str: + return f"{self.name}{' : tl.constexpr' if self.is_constexpr else ''}" + + +class RemovedArg: + def __str__(self) -> str: + return "REMOVED" + + +REMOVED = RemovedArg() + + +class KernelArgs: + @staticmethod + def _lookup( + prefix: str, + odict: Union[dict[_T, Union[str, RemovedArg]], dict[_T, str]], + name: _T, + ) -> str: + result: Union[str, RemovedArg] = odict.get(name, REMOVED) + if isinstance(result, RemovedArg): + odict[name] = new_result = f"{prefix}{len(odict)}" + return new_result + return result + + def __init__(self) -> None: + self.input_buffers: dict[str, str] = {} + self.output_buffers: dict[str, Union[str, RemovedArg]] = {} + self.inplace_buffers: dict[str, Union[InplacedBuffer, RemovedArg]] = {} + self.sizevars: dict[sympy.Expr, str] = {} + self.workspace_args: list[WorkspaceArg] = [] + + def __repr__(self) -> str: + return "KernelArgs({})".format( + ", ".join( + map( + repr, + [ + self.input_buffers, + self.output_buffers, + self.inplace_buffers, + self.sizevars, + ], + ) + ) + ) + + @staticmethod + def _buffer_is_marked_removed(name: Any) -> bool: + # this function is needed by MTIA + return isinstance(name, RemovedArg) + + def input(self, name: str) -> str: + if V.graph.scheduler: + name = V.graph.scheduler.mutation_real_name.get(name, name) + assert name not in V.graph.removed_buffers, name + if name in self.output_buffers: + return cast(str, self.output_buffers[name]) + if name in self.inplace_buffers: + return cast(InplacedBuffer, self.inplace_buffers[name]).inner_name + if name.startswith("seed"): + return self._lookup("seed", self.input_buffers, name) + return self._lookup("in_ptr", self.input_buffers, name) + + def output(self, name: str) -> str: + if V.graph.scheduler: + name = V.graph.scheduler.mutation_real_name.get(name, name) + assert name not in V.graph.removed_buffers, name + if name in self.inplace_buffers: + return cast(InplacedBuffer, self.inplace_buffers[name]).inner_name + return self._lookup("out_ptr", self.output_buffers, name) + + def make_inplace(self, input_name: str, output_name: str) -> None: + if input_name in V.graph.unaligned_buffers: + V.graph.unaligned_buffers.add(output_name) + assert output_name not in self.inplace_buffers, output_name + if input_name in self.inplace_buffers: + buf = self.inplace_buffers[input_name] + assert not isinstance(buf, RemovedArg) + buf.other_names.append(output_name) + self.inplace_buffers[output_name] = buf + else: + alive_buffers = [ + val + for val in self.inplace_buffers.values() + if not isinstance(val, RemovedArg) + ] + removed_buffers = [ + val + for val in self.inplace_buffers.values() + if isinstance(val, RemovedArg) + ] + inplace_buffer_idx = len(unique(alive_buffers)) + len(removed_buffers) + buf = InplacedBuffer( + f"in_out_ptr{inplace_buffer_idx}", + [input_name, output_name], + ) + self.inplace_buffers[input_name] = buf + self.inplace_buffers[output_name] = buf + + def workspace( + self, nelem: sympy.Expr, zero_fill: bool, dtype: torch.dtype = torch.uint8 + ) -> tuple[str, str, int]: + """ + Allocate or extend a workspace buffer of nelem elements. + + This function manages the allocation of a workspace buffer. It either creates + a new WorkspaceArg or extends an existing one. + + Note: + - Calling this function will in-place mutate the args by adding or updating + a WorkspaceArg. + - The codegen for generating the Python argdefs and call_defs will check + this field and allocate the buffer accordingly. + - A new argument "ws_ptr" will be present in the generated code. + + Args: + nelem (sympy.Expr): The number of elements to allocate. + zero_fill (bool): Whether to initialize the buffer to zero. + dtype (torch.dtype): the dtype of the workspace tensor + + Returns: + Tuple[str, str, int]: A tuple containing: + - "ws_ptr": A string identifier for the workspace pointer. + - "workspace_{i}": agraph level unique identifier for + the workspace tensor. + - offset: An integer representing the item offset in the workspace. + """ + arg = WorkspaceArg( + count=nelem, + zero_mode=WorkspaceZeroMode.from_bool(zero_fill), + device=V.graph.get_current_device_or_throw(), + outer_name=WorkspaceArg.unique_name(), + dtype=dtype, + ) + for i, existing_arg in enumerate(self.workspace_args): + if WorkspaceArg.can_join(existing_arg, arg): + offset = existing_arg.count + self.workspace_args[i] = WorkspaceArg.join(existing_arg, arg) + return existing_arg.inner_name, existing_arg.outer_name, offset + assert ( + existing_arg.inner_name != arg.inner_name + and existing_arg.outer_name != arg.outer_name + ), existing_arg + self.workspace_args.append(arg) + return arg.inner_name, arg.outer_name, 0 + + def semaphores(self, min_size: sympy.Expr) -> str: + """ + Lazily allocate a graph-wide semaphores buffer with at least min_size. This is a single buffer shared by + all kernels and zero initialized once at graph start. Each kernel must leave the buffer zeroed on exit. + + Warning: multiple calls to this function will return the same buffer. + + Args: + min_size: the number of int32 semaphores required + + Returns: + name of the semaphores buffer + """ + current_device = V.graph.get_current_device_or_throw() + arg = WorkspaceArg( + count=min_size, + zero_mode=WorkspaceZeroMode.ZERO_PER_GRAPH, + dtype=torch.uint32, + inner_name="sem_ptr", + outer_name=f"semaphores_{current_device.type}_{current_device.index}", + device=current_device, + ) + for existing_arg in self.workspace_args: + if existing_arg.inner_name == arg.inner_name: + assert arg == existing_arg, (arg, existing_arg) + self.workspace_args.append(arg) + return arg.inner_name + + def seed_offset(self, name: str, value: int) -> str: + assert isinstance(value, int), (type(value), value) + # here we are lifting a constant integer into an arg to the kernel to try to get additional cache hits + value = sympy.Integer(value) + if value in self.sizevars: + return self.sizevars[value] + if name in self.sizevars.values(): + name = ( + f"{name}{sum(1 for v in self.sizevars.values() if v.startswith(name))}" + ) + self.sizevars[value] = name + return name + + def size(self, name: sympy.Symbol) -> str: + assert isinstance(name, sympy.Symbol), (type(name), name) + if name.name == "seed": + self.sizevars[name] = "seed" # don't manage the name of seeds + return "seed" + return self._lookup("ks", self.sizevars, name) + + def call_names(self) -> Iterator[str]: + return chain( + self.input_buffers.keys(), self.output_buffers.keys(), self.sizevars.keys() + ) + + def arg_name(self, name: str) -> Optional[str]: + """ + Returns inner name of a given outer name. + """ + inplaced = self.inplace_buffers.get(name, None) + if inplaced is not None and not isinstance(inplaced, RemovedArg): + return inplaced.inner_name + output_name = self.output_buffers.get(name, None) + if output_name is not None and not isinstance(output_name, RemovedArg): + return output_name + return self.input_buffers.get(name, None) + + def wrap_ptr_arg(self, buf: str, dtype: torch.dtype) -> str: + return buf + + def wrap_size_arg(self, size: SymbolLike) -> str: + return str(size) + + def cpp_argdefs( + self, dtype_to_cpp_type: Optional[dict[torch.dtype, str]] = None + ) -> tuple[list[str], list[str], list[str]]: + from .cpp_utils import INDEX_TYPE + + if dtype_to_cpp_type is None: + from .cpp_utils import DTYPE_TO_CPP + + dtype_to_cpp_type = DTYPE_TO_CPP + + call_args = [] + arg_defs = [] + arg_types = [] + for inplaced in unique(self.inplace_buffers.values()): + if isinstance(inplaced, RemovedArg): + continue + outer = inplaced.other_names[-1] + inner = inplaced.inner_name + dtype = V.graph.get_dtype(outer) + cpp_dtype = dtype_to_cpp_type[dtype] + arg_defs.append(f"{cpp_dtype}* {inner}") + call_args.append(self.wrap_ptr_arg(outer, dtype)) + arg_types.append(f"{cpp_dtype}*") + for outer, inner in self.input_buffers.items(): + if outer in self.inplace_buffers: + continue + dtype = V.graph.get_dtype(outer) + cpp_dtype = dtype_to_cpp_type[dtype] + arg_defs.append(f"const {cpp_dtype}* {inner}") + call_args.append(self.wrap_ptr_arg(outer, dtype)) + arg_types.append(f"const {cpp_dtype}*") + for outer, maybe_inner in self.output_buffers.items(): + if outer in self.inplace_buffers or isinstance(maybe_inner, RemovedArg): + continue + dtype = V.graph.get_dtype(outer) + cpp_dtype = dtype_to_cpp_type[dtype] + arg_defs.append(f"{cpp_dtype}* {maybe_inner}") + call_args.append(self.wrap_ptr_arg(outer, dtype)) + arg_types.append(f"{cpp_dtype}*") + for outer, inner in self.sizevars.items(): + if isinstance(outer, sympy.Symbol) and symbol_is_type( + outer, (SymT.UNBACKED_FLOAT) + ): + arg_defs.append(f"const float {inner}") + arg_types.append("const float") + else: + arg_defs.append(f"const {INDEX_TYPE} {inner}") + arg_types.append(f"const {INDEX_TYPE}") + call_args.append(self.wrap_size_arg(outer)) + if V.graph.wrapper_code: + V.graph.wrapper_code.ensure_size_computed(outer) + assert not self.workspace_args, "Workspace not supported on CPU " + return arg_defs, call_args, arg_types + + def python_argdefs( + self, + ) -> tuple[list[ArgName], list[str], list[KernelArgType], list[Any]]: + arg_defs: list[ArgName] = [] + call_args: list[str] = [] + arg_types: list[Any] = [] + precompile_args: list[KernelArgType] = [] + for inplaced in unique(self.inplace_buffers.values()): + if isinstance(inplaced, RemovedArg): + continue + arg_defs.append(ArgName(inplaced.inner_name)) + call_args.append(inplaced.other_names[-1]) + arg_types.append(V.graph.get_dtype(inplaced.other_names[-1])) + precompile_args.append( + TensorArg( + name=inplaced.inner_name, + buffer=inplaced.other_names[-1], + dtype=V.graph.get_dtype(inplaced.other_names[-1]), + ) + ) + for outer, inner in chain( + self.input_buffers.items(), + # pyrefly: ignore [bad-argument-type] + self.output_buffers.items(), + ): + if outer in self.inplace_buffers or isinstance(inner, RemovedArg): + continue + arg_defs.append(ArgName(inner)) + call_args.append(outer) + arg_types.append(V.graph.get_dtype(outer)) + precompile_args.append( + TensorArg( + name=inner, + buffer=outer, + dtype=V.graph.get_dtype(outer), + ) + ) + for outer, inner in self.sizevars.items(): + arg_defs.append(ArgName(inner)) + call_args.append(outer) + arg_types.append(type(outer)) + precompile_args.append(SizeArg(inner, outer)) + if V.graph.wrapper_code: + V.graph.wrapper_code.ensure_size_computed(outer) + for arg in self.workspace_args: + arg_defs.append(ArgName(arg.inner_name)) + call_args.append(arg.outer_name) + precompile_args.append(arg) + arg_types.append(arg.dtype) + return arg_defs, call_args, precompile_args, arg_types + + def aliases(self) -> Iterator[tuple[str, str]]: + for inplaced in unique(self.inplace_buffers.values()): + if isinstance(inplaced, RemovedArg): + continue + for other in inplaced.other_names: + if ( + other in V.graph.inplaced_to_remove + or other in V.kernel.inplaced_to_remove + ): + continue + if other in self.input_buffers: + yield self.input_buffers[other], inplaced.inner_name + if other in self.output_buffers: + yield cast(str, self.output_buffers[other]), inplaced.inner_name + + def is_removed(self, name: str) -> bool: + return isinstance( + self.output_buffers.get(name, REMOVED), RemovedArg + ) and isinstance(self.inplace_buffers.get(name, REMOVED), RemovedArg) + + # Includes inplace buffers, excludes removed buffers. Essentially, + # after you do a call into this kernel, which buffers actually contain + # updated data? Modeled off of python_argdefs. + def live_output_buffers(self) -> OrderedSet[str]: + live_outs: OrderedSet[str] = OrderedSet() + for inplaced in unique(self.inplace_buffers.values()): + if isinstance(inplaced, RemovedArg): + continue + live_outs.add(inplaced.other_names[-1]) + for outer, inner in self.output_buffers.items(): + if outer in self.inplace_buffers or isinstance(inner, RemovedArg): + continue + live_outs.add(outer) + return live_outs + + +class CSEVariable: + """A CSEVariable is just a name for an expression but it is useful to be able to annotate them on a backend dependent basis. + To do so, the backends can simply overload `Kernel.create_cse_var` + The "CSEVariable.update_on_args" method gives you a hook for annotations + See example of TritonCSEVariable in triton.py + """ + + def __init__( + self, + name: str, + bounds: ValueRanges[Any], + dtype: Optional[torch.dtype] = None, + shape: BlockShapeType = None, + ): + super().__init__() + assert isinstance(bounds, ValueRanges), type(bounds) + self.name = name + self.bounds = bounds + self.use_count = 1 # track how many times this expression is used + self.dtype = dtype + self.shape = shape + + def __str__(self) -> str: + return self.name + + def __hash__(self) -> int: + return hash(self.name) + + def __eq__(self, other: object) -> bool: + return isinstance(other, CSEVariable) and other.name == self.name + + def update_on_args(self, name: str, args: Any, kwargs: Any) -> None: + pass + + def __repr__(self) -> str: + return f"{self.__class__.__name__}({self.name!r})" + + +AugmentedKeyT = TypeVar("AugmentedKeyT", default=str) +CSEVariableType = TypeVar("CSEVariableType", bound=CSEVariable, default=CSEVariable) + +if TYPE_CHECKING: + ReductionCacheKey = tuple[ + torch.dtype, + ReductionType, + Union[CSEVariable, tuple[CSEVariable, ...]], + ] + + +class CSE(Generic[CSEVariableType, AugmentedKeyT]): + """Common subexpression elimination""" + + def __init__( + self, + prefix: str = "", + suffix: str = "", + name_prefix: str = "tmp", + iter_buffers: Optional[itertools.count[int]] = None, + store_cache: Optional[MutableMapping[str, CSEVariableType]] = None, + reduction_cache: Optional[ + MutableMapping[ReductionCacheKey, CSEVariableType] + ] = None, + varname_map: Optional[dict[str, CSEVariableType]] = None, + ): + self.prefix = prefix + self.suffix = suffix + self._cache: MutableMapping[AugmentedKeyT, CSEVariableType] = {} + self.name_prefix = name_prefix + self.store_cache: MutableMapping[str, CSEVariableType] = store_cache or {} + self.reduction_cache: MutableMapping[ReductionCacheKey, CSEVariableType] = ( + reduction_cache or {} + ) + self.iter_buffer_ids: itertools.count[int] = iter_buffers or itertools.count() + self.invalidated_stores: OrderedSet[str] = OrderedSet() + self.varname_map: dict[str, CSEVariableType] = varname_map or {} + + def invalidate(self, keep_vars: OrderedSet[CSEVariable]) -> None: + for name, tmp in [*self.store_cache.items()]: + if tmp not in keep_vars: + del self.store_cache[name] + self.invalidated_stores.add(name) + if keep_vars: + self._cache = {k: v for k, v in self._cache.items() if v in keep_vars} + else: + self._cache = {} + + def clone(self) -> Self: + return type(self)( + prefix=self.prefix, + suffix=self.suffix, + name_prefix=self.name_prefix, + iter_buffers=self.iter_buffer_ids, + store_cache=self.store_cache, + varname_map=self.varname_map, + reduction_cache=self.reduction_cache, + ) + + def scoped_copy(self) -> Self: + """Return a copy of using ScopedDict so changes to *_cache aren't visible in self""" + new_cse = self.clone() + new_cse._cache = ScopedDict(self._cache) + new_cse.reduction_cache = ScopedDict(self.reduction_cache) + new_cse.store_cache = ScopedDict(self.store_cache) + return new_cse + + def augment_key(self, cache_key: str) -> AugmentedKeyT: + "Override this method to augment cache key with backend specifics" + return cast(AugmentedKeyT, cache_key) + + def put(self, cache_key: str, val: CSEVariableType) -> None: + self._cache[self.augment_key(cache_key)] = val + + def contains(self, cache_key: str) -> bool: + return self.augment_key(cache_key) in self._cache + + def try_get(self, cache_key: str) -> Optional[CSEVariableType]: + return self._cache.get(self.augment_key(cache_key), None) + + def get(self, cache_key: str) -> CSEVariableType: + return self._cache[self.augment_key(cache_key)] + + def generate( + self, + buffer: IndentedBuffer, + expr: Union[str, CSEVariable, OpsValue, IndentedBuffer, DeferredLineBase], + *, + bounds: ValueRanges[Any] = ValueRanges.unknown(), + write: bool = True, + assignment: bool = True, + dtype: Optional[torch.dtype] = None, + shape: BlockShapeType = None, + ) -> CSEVariableType: + if isinstance(expr, OpsValue): + expr = expr.value + + assert write or assignment + if isinstance(expr, CSEVariable): + # If the expressions were always created with all the information, we could + # assert expr.bounds == bounds, but sometimes the expression is created + # with the loose ValueRanges.unknown(), so we need to tighten the bounds + expr.bounds = expr.bounds.tighten(bounds) + expr.use_count += 1 + return cast(CSEVariableType, expr) + elif isinstance(expr, IndentedBuffer): + cache_key = expr.getvalue() + elif isinstance(expr, DeferredLineBase): + cache_key = expr.line + else: + assert isinstance(expr, str) + cache_key = expr + var = self.try_get(cache_key) + if shape is None and not assignment: + # since there's no assignment to a variable, use any shape here + # other than None to avoid the unknown shape failures + shape = () + if not var: + var = self.newvar(bounds, dtype, shape) + self.put(cache_key, var) + if write: + if V.kernel.current_node: + V.kernel.current_node.codegen_originating_info( + buffer, only_once=True + ) + if isinstance(expr, IndentedBuffer): + if assignment: + buffer.writeline(f"{self.prefix}{var} =") + buffer.splice(expr) + buffer.writeline(self.suffix) + elif isinstance(expr, DeferredLineBase): + assert assignment + buffer.writeline( + expr._new_line(f"{self.prefix}{var} = {expr.line}{self.suffix}") + ) + else: + if assignment: + line = f"{self.prefix}{var} = {expr}{self.suffix}" + else: + line = f"{expr}{self.suffix}" + buffer.writeline(line) + + # cpp backend cannot determine is_vec at this point + if ( + assignment + and ( + config.test_configs.runtime_triton_dtype_assert + or config.test_configs.static_cpp_dtype_assert + ) + and dtype is not None + and get_current_backend() != "cpp" + ): + check_dtype(buffer, var, dtype) + + else: + var.bounds = var.bounds.tighten(bounds) + var.use_count += 1 + + return var + + def newvar( + self, + bounds: ValueRanges[Any] = ValueRanges.unknown(), + dtype: Optional[torch.dtype] = None, + shape: BlockShapeType = None, + ) -> CSEVariableType: + var_name = f"{self.name_prefix}{next(self.iter_buffer_ids)}" + var = V.kernel.create_cse_var(var_name, bounds, dtype, shape) + self.varname_map[var_name] = var + return var + + def namedvar( + self, + name: str, + bounds: ValueRanges[Any] = ValueRanges.unknown(), + dtype: Optional[torch.dtype] = None, + shape: BlockShapeType = None, + ) -> CSEVariableType: + torch._check_value( + name not in self.varname_map, lambda: f"duplicate name: {name}" + ) + var = V.kernel.create_cse_var(name, bounds, dtype, shape) + self.varname_map[name] = var + return var + + +class CodeGen: + def __init__(self) -> None: + super().__init__() + self.exit_stack = contextlib.ExitStack() + + def __enter__(self) -> Self: + self.exit_stack.__enter__() + return self + + def __exit__(self, exc_type: Any, exc_val: Any, exc_tb: Any) -> None: + self.exit_stack.__exit__(exc_type, exc_val, exc_tb) + + +class Kernel(CodeGen, Generic[CSEVariableType]): + newvar_prefix: str = "" + suffix: str = "" + overrides: Optional[Callable[[], OpsHandler[Any]]] = None + + def __init__( + self, args: Optional[KernelArgs] = None, increase_kernel_count: bool = True + ) -> None: + super().__init__() + if increase_kernel_count: + # pyrefly: ignore [bad-assignment] + metrics.generated_kernel_count += 1 + self.args = args or KernelArgs() + self.loads = IndentedBuffer() + self.compute = IndentedBuffer() + self.stores = IndentedBuffer() + + self.atomic_add_found = False + self.num_load = 0 + self.num_store = 0 + self.num_reduction = 0 + + self.cse: CSE[CSEVariableType, Any] = CSE(self.newvar_prefix, self.suffix) + self.must_keep_buffers: OrderedSet[str] = OrderedSet() + self.store_buffer_names: OrderedSet[str] = OrderedSet() + self._load_mask: Optional[str] = None + self._load_other: Union[None, int, float] = None + # OrderedSet in set_current_node + self.current_node: Optional[SchedulerNode] = None + self.node_to_bounds: Optional[dict[torch.fx.Node, ValueRanges[Any]]] = None + + self.removed_buffers: OrderedSet[str] = OrderedSet() + self.inplaced_to_remove: OrderedSet[str] = OrderedSet() + + # key: the buffer to write + # value: the buffer to read and whose memory can be reused for + # the buffer specified by key + self.inplace_update_buffers: dict[str, str] = {} + # Set minimum number of elements processed per thread. + self.min_elem_per_thread = 1 + self.kernel_name: Optional[str] = None + + @contextlib.contextmanager + def set_current_node(self, node: SchedulerNode) -> Iterator[None]: + prior = self.current_node + self.current_node = node + self.node_to_bounds = node._body.bounds().get_bounds() + try: + yield + finally: + self.current_node = prior + + @contextlib.contextmanager + def swap_buffers( + self, + lb: IndentedBuffer, + cb: Optional[IndentedBuffer] = None, + sb: Optional[IndentedBuffer] = None, + ) -> Iterator[None]: + if cb is None: + cb = lb + if disallow_stores := sb is None: + sb = IndentedBuffer() + loads = self.loads + compute = self.compute + stores = self.stores + cse = self.cse + self.loads = lb + self.compute = cb + self.stores = sb + self.cse = cse.scoped_copy() + try: + yield + finally: + self.loads = loads + self.compute = compute + self.stores = stores + self.cse = cse + # pyrefly: ignore [unbound-name] + if disallow_stores: + assert not sb, "unexpected store inside swap_buffers" + + def load(self, name: str, index: sympy.Expr) -> CSEVariable: + raise NotImplementedError + + def indirect_load(self, name: str, index: sympy.Expr) -> CSEVariable: + """A load the depends on an index we have read""" + prior = self.loads + try: + # put the load in the compute section as it might have deps + self.loads = self.compute + return self.load(name, index) + finally: + self.loads = prior + + def store_reduction(self, name: str, index: sympy.Expr, value: CSEVariable) -> None: + raise NotImplementedError + + def store( + self, name: str, index: sympy.Expr, value: CSEVariable, mode: StoreMode = None + ) -> None: + raise NotImplementedError + + def device_assert_async(self, cond: CSEVariable, msg: str) -> None: + raise NotImplementedError( + f"{type(self).__name__}: device_assert_async should be handled by CSEProxy" + ) + + def reduction( + self, + dtype: torch.dtype, + src_dtype: torch.dtype, + reduction_type: ReductionType, + value: Union[CSEVariable, tuple[CSEVariable, ...]], + ) -> Union[CSEVariable, tuple[CSEVariable, ...]]: + raise NotImplementedError + + def partial_accumulate( + self, + name: str, + reduction_type: ReductionType, + value: CSEVariable, + extra_meta: dict[str, Any], + ) -> None: + raise NotImplementedError + + def scan( + self, + dtypes: tuple[torch.dtype, ...], + combine_fn: Callable[ + [tuple[CSEVariable, ...], tuple[CSEVariable, ...]], tuple[CSEVariable, ...] + ], + values: tuple[CSEVariable, ...], + ) -> tuple[CSEVariable, ...]: + raise NotImplementedError + + def sort( + self, + dtypes: tuple[torch.dtype, ...], + values: tuple[CSEVariable, ...], + stable: bool, + descending: bool, + ) -> tuple[CSEVariable, ...]: + raise NotImplementedError + + def var_ranges(self) -> dict[sympy.Symbol, sympy.Expr]: + raise NotImplementedError + + def bucketize( + self, + values: CSEVariable, + boundaries: tuple[str, sympy.Expr, sympy.Expr, sympy.Expr], + boundary_indices: CSEVariable, + indexing_dtype: torch.dtype, + right: bool, + sorter: Optional[tuple[str, sympy.Expr]] = None, + sorter_indices: Optional[CSEVariable] = None, + ) -> CSEVariable: + """ + See [Note: Inductor bucketize op] + """ + raise NotImplementedError + + @property + def assert_function(self) -> str: + raise NotImplementedError + + def indirect_assert( + self, + var: Union[CSEVariable, str], + lower: Optional[str], + upper: Optional[str], + mask: Optional[Union[CSEVariable, str]] = None, + ) -> str: + if isinstance(var, CSEVariable): + var = str(var) + assert isinstance(var, str), type(var) + assert lower is None or isinstance(lower, str) + assert upper is None or isinstance(upper, str) + if lower and upper: + # The conditions need to be in parens because of Python's operator precedence. + # It'd be less error-prone to use and/or/not, which is supported by triton + cond = f"({lower} <= {var}) & ({var} < {upper})" + cond_print = f"{lower} <= {var} < {upper}" + elif lower: + cond = f"{lower} <= {var}" + cond_print = cond + else: + assert upper + cond = f"{var} < {upper}" + cond_print = cond + + if mask: + cond = f"({cond}) | ~({mask})" + + return f'{self.assert_function}({cond}, "index out of bounds: {cond_print}")' + + def check_bounds( + self, expr: sympy.Expr, size: sympy.Expr, lower: bool, upper: bool + ) -> None: + raise NotImplementedError + + def index_to_str(self, index: sympy.Expr) -> str: + raise NotImplementedError + + def __enter__(self) -> Self: + super().__enter__() + assert self.overrides + self.exit_stack.enter_context( + V.set_ops_handler(CSEProxy(self, self.overrides())) + ) + self.exit_stack.enter_context(V.set_kernel_handler(self)) + return self + + def __exit__(self, exc_type: Any, exc_val: Any, exc_tb: Any) -> None: + self.remove_kernel_local_buffers() + super().__exit__(exc_type, exc_val, exc_tb) + + def remove_kernel_local_buffers(self) -> None: + """ + Any buffers that are both created and have a last use in the + same kernel can be removed. + + Note that V.graph.scheduler can be None when codegening triton template + kernels. + """ + scheduler = V.graph.scheduler + if not scheduler: + return + fused_node_names = OrderedSet( + scheduler.name_to_buf[buf].defining_op_name() + for buf in self.store_buffer_names + if buf in scheduler.name_to_buf + ) + names_to_remove: OrderedSet[str] = OrderedSet() + for name in self.store_buffer_names: + if ( + name not in self.must_keep_buffers + and name not in self.args.input_buffers + and scheduler.can_buffer_be_removed_through_fusion( + name, fused_node_names + ) + ): + self.num_store -= 1 + names_to_remove.add(name) + + for name in names_to_remove: + if name in self.args.inplace_buffers: + buf = self.args.inplace_buffers[name] + if isinstance(buf, RemovedArg): + continue + remove = all(n in names_to_remove for n in buf.other_names) + if remove: + self.remove_inplace_buffer(name) + self.inplaced_to_remove.add(name) + else: + self.remove_buffer(name) + + def remove_buffer(self, name: str) -> None: + # Assign a special value instead of deleting the entry + # because we still rely on output_buffers's length to + # generate unique arg name. + log.debug("remove_buffer(%r)", name) + self.args.output_buffers[name] = REMOVED + self.removed_buffers.add(name) + + def remove_inplace_buffer(self, name: str) -> None: + log.debug("removing_inplace_buffer(%r)", name) + self.args.inplace_buffers[name] = REMOVED + self.removed_buffers.add(name) + + def rename_indexing( + self, index: Union[list[sympy.Expr], tuple[sympy.Expr, ...], sympy.Expr] + ) -> sympy.Expr: + # adds the necessary kernel args for index expressions + # and renames variables in index expressions to kernel arg names + if isinstance(index, (list, tuple)): + return [self.rename_indexing(x) for x in index] + index = V.graph.sizevars.simplify(index) + sorted_symbols = sorted(index.free_symbols, key=lambda s: s.name) + replacements = { + x: self.args.size(x) + for x in sorted_symbols + if symbol_is_type( + x, + ( + SymT.UNBACKED_INT, + SymT.SIZE, + SymT.PRECOMPUTED_SIZE, + SymT.UNBACKED_FLOAT, + ), + ) + } + return sympy_subs(index, replacements) + + def create_cse_var(self, *args: Any, **kwargs: Any) -> CSEVariable: + return CSEVariable(*args, **kwargs) + + def arg_name(self, node: IRNode) -> Optional[str]: + """ + Returns arg name of a given input or output node. + """ + if node is None: + return None + return self.args.arg_name(node.get_name()) + + +@dataclasses.dataclass +class OptimizationContext: + key: ClassVar[str] = "opt_ctx" + + dtype: Optional[torch.dtype] = None + ops_name: str = "" + + +@functools.cache +def jinja2_env() -> Any: + try: + import jinja2 + + return jinja2.Environment( + undefined=jinja2.StrictUndefined, + ) + except ImportError: + return None + + +class KernelTemplate: + """ + Base class for defining kernel templates. + + Children classes: TritonTemplate, CUDATemplate + """ + + @staticmethod + def indent_except_first( + source: str, num_indents: int, indents_spacing: int = 4 + ) -> str: + lines = source.splitlines(True) + if len(lines) > 1: + lines[1:] = [ + (" " * indents_spacing * num_indents) + line for line in lines[1:] + ] + return "".join(lines) + + @staticmethod + def _template_from_string(source: str) -> Any: + env = jinja2_env() + if env is None: + return None + env.filters["indent_except_first"] = KernelTemplate.indent_except_first + from jinja2 import TemplateSyntaxError + + try: + return env.from_string(source) + except TemplateSyntaxError as e: + + class DetailedTemplateSyntaxError(TemplateSyntaxError): + def __init__(self, original_error: TemplateSyntaxError) -> None: + super().__init__( + # pyrefly: ignore [bad-argument-type] + original_error.message, + original_error.lineno, + original_error.name, + original_error.filename, + ) + self.original_error = original_error + + def __str__(self) -> str: + error_info = f"Error in template at line {self.lineno}\n" + error_info += f"Error message: {self.message}\n" + if hasattr(self.original_error, "source"): + # pyrefly: ignore [missing-attribute] + lines = self.original_error.source.split("\n") + error_info += "Context:\n" + start = max(0, self.lineno - 2) + end = min(len(lines), self.lineno + 2) + for i in range(start, end): + if i == self.lineno - 1: + error_info += f"{i + 1}: --> {lines[i]}\n" + if hasattr(self.original_error, "column"): + error_info += ( + " " + + " " * (self.original_error.column - 1) + + "^\n" + ) + else: + error_info += f"{i + 1}: {lines[i]}\n" + return error_info + + raise DetailedTemplateSyntaxError(e) from e + + @staticmethod + def _fake_get_dtype( + fake_outs: Union[list[Buffer], Buffer], + ) -> Callable[[str], torch.dtype]: + _get_dtype_real = V.graph.get_dtype + if isinstance(fake_outs, (list, tuple)): + lookup = {buf.get_name(): buf.get_dtype() for buf in fake_outs} + else: + lookup = {fake_outs.get_name(): fake_outs.get_dtype()} + + def get_dtype(name: str) -> torch.dtype: + result = lookup.get(name) + if result is not None: + return result + return _get_dtype_real(name) + + return get_dtype + + def __init__(self, name: str, hash: Optional[str] = None) -> None: + self.name = name + self._hash = hash + + @property + def uid(self) -> str: + """ + entry point to override for templates to ensure a uid e.g. through a prefix + + the purpose of this is that every KernelTemplate/ExternKernelChoice is unique + in the system, but reproducible e.g. restarting pytorch should yield the same id + """ + # TODO(coconutruben): add some central registration to assert on global uniqueness + return self.name + + @property + def src_hash(self) -> Union[str, None]: + """ + source hash for a Template. + + Templates can optionally provide a src hash to make it easier to cache/validate that + a template has not changed from one version to another. Override this if that detection + is different for your specific Template + """ + return self._hash + + def choice_or_none(self, **kwargs: Any) -> Optional[ChoiceCaller]: + """ + Maybe generates a new ChoiceCaller and returns it, or None if generation fails. + + kwargs: Additional kwargs to be passed to self.generate() to generate a new ChoiceCaller. + """ + temp_choices: list[Any] = [] + result = self.maybe_append_choice(temp_choices, **kwargs) + if result is None and len(temp_choices) == 1: + return temp_choices[0] + return None + + def maybe_append_choice( + self, choices: list[Any], **kwargs: Any + ) -> Optional[NotImplementedError]: + """ + Maybe generates a new ChoiceCaller and appends it into existing choices. + Returns None if success, otherwise returns the error. + + choices: A list of ChoiceCallers. + kwargs: Additional kwargs to be passed to self.generate() to generate a new ChoiceCaller. + """ + + try: + choices.append(self.generate(**kwargs)) + return None + except NotImplementedError as e: + log.info( # noqa: G200 + "Cannot Append Choice: %s. KernelTemplate type is %s", + e, + type(self), + stack_info=log.getEffectiveLevel() < logging.INFO, + ) + return e + + def generate(self, **kwargs: Any) -> ChoiceCaller: + """ + Generates a ChoiceCaller instance from the given arguments. + """ + + raise NotImplementedError + + +class CSEProxy(DefaultHandler): + """A ops handler that proxies calls to `kernel` and its + handler and returns `CSEVariable`s with correct shape and dtype. + """ + + name = "CSEProxy" + + def __init__(self, kernel: Kernel[Any], parent_handler: OpsHandler[Any]): + super().__init__() + from ..bounds import ValueRangeAnalysis + + self.vr_analysis = ValueRangeAnalysis() + self.kernel = kernel + self.parent_handler = parent_handler + + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + bounds = self._bound_variable(name, *args, **kwargs) + + value = getattr(self.parent_handler, name)(*args, **kwargs) + dtype_handler = DtypePropagationOpsHandler() + shape_handler = ShapePropagationOpsHandler() + + backend = get_current_backend() + + shape_op = getattr(shape_handler, name) + output_dtype = None + output_shape = None + + if name == "masked" and backend == "triton": + output_dtype = value.dtype + output_shape = value.shape + elif name == "masked" and backend == "cpp": + output_dtype = V.interpreter.current_node.meta.get( + OptimizationContext.key, None + ).dtype + # TODO: fix me + output_shape = None + elif backend in ("triton", "cpp", "mps"): + dtype_op = getattr(dtype_handler, name) + output_dtype = dtype_op(*args, **kwargs) + output_shape = shape_op(*args, **kwargs) + + if backend in ("triton", "cpp"): + # maybe there are some exceptions on mps? + assert output_dtype is not None + + output_idx = 0 + + def do_cse(v: Union[str, CSEVariable]) -> CSEVariable: + # we tree_map over the output, so we need to fetch corresponding dtype + nonlocal output_idx + var_dtype: Optional[torch.dtype] = ( + output_dtype[output_idx] + if isinstance(output_dtype, (list, tuple)) + else output_dtype + ) + var_shape: BlockShapeType = ( + output_shape[output_idx] # type: ignore[assignment] + if isinstance(output_shape, (list, tuple)) + and len(output_shape) > 0 + and isinstance(output_shape[0], (list, tuple)) + else output_shape + ) + output_idx += 1 + + # some cpp op implementations don't set the dtype + if isinstance(v, CSEVariable): + if backend == "cpp" and v.dtype is None: + v.dtype = var_dtype + if v.shape is None: + v.shape = var_shape + + csevar = V.kernel.cse.generate( + V.kernel.compute, + v, + bounds=bounds, + dtype=output_dtype, + shape=output_shape, + ) + + csevar.update_on_args(name, args, kwargs) + + if ( + config.test_configs.runtime_triton_dtype_assert + or config.test_configs.static_cpp_dtype_assert + ): + assert var_dtype is not None + check_dtype(V.kernel.compute, csevar, var_dtype) + + if config.test_configs.runtime_triton_shape_assert: + assert output_shape is not None + check_shape(V.kernel.compute, csevar, output_shape) + + if config.runtime_triton_nan_asserts: + check_nan(V.kernel.compute, csevar) + + return csevar + + return pytree.tree_map(do_cse, value) + + def _bound_variable(self, name: str, *args: Any, **kwargs: Any) -> ValueRanges[Any]: + """ + If the variable comes from an FX node, we forward the bound we have already computed + Else, if the variable when codegen'ing another op, we try to compute its bounds + """ + from ..bounds import ValueRangeAnalysis + from ..select_algorithm import TritonTemplateKernel + from .cuda.cuda_kernel import CUDATemplateKernel + + if isinstance(V.kernel, TritonTemplateKernel): + return ValueRanges.unknown() + + if isinstance(V.kernel, CUDATemplateKernel): + return ValueRanges.unknown() + + if isinstance(V.interpreter, NullHandler): + return ValueRanges.unknown() + + fx_node = V.interpreter.current_node + if fx_node.target == name and self.kernel.node_to_bounds is not None: + assert isinstance(self.kernel.node_to_bounds, dict), type( + self.kernel.node_to_bounds + ) + return self.kernel.node_to_bounds.get(fx_node, ValueRanges.unknown()) + elif config.compute_all_bounds and hasattr(ValueRangeAnalysis, name): + # These create lots of inner strings. We would need to compute the bounds at the ops + # We will also likely not get much from computing VRs on these nodes + if any(s in fx_node.target for s in ("set_indirect", "reduction", "scan")): + return ValueRanges.unknown() + + # We assume that the inputs come from `ops.` and are not strings. If you want to generate + # intermediary strings, wrap them in CSE variables with properly initialised bounds. + + # If there is no FX bound but we know how to compute one we do so + assert not kwargs + + def arg_to_bound(x: Any) -> Any: + if isinstance(x, CSEVariable): + return x.bounds + elif isinstance(x, sympy.Expr): + return bound_sympy(x) + else: + return x + + arg_bounds = list(map(arg_to_bound, args)) + return getattr(self.vr_analysis, name)(*arg_bounds) + return ValueRanges.unknown() + + def indirect_indexing( + self, + var: CSEVariable, + size: Union[sympy.Expr, int], + check: bool = True, + wrap_neg: bool = True, + ) -> sympy.Symbol: + if isinstance(size, int): + size = sympy.Integer(size) + assert isinstance(size, sympy.Expr), (type(size), size) + # Skip CSE since this doesn't return an expression + + if var.bounds.lower < 0: + if wrap_neg: + stm = ops.add(var, ops.index_expr(size, torch.long)) + # Mixed negative and non-negative + if var.bounds.upper >= 0: + lt = ops.lt(var, 0) + stm = ops.where(lt, stm, var) + else: + stm = var + + # Propagate bounds as we know how to compute them properly + new_bounds = ValueRanges.unknown() + if var.bounds != ValueRanges.unknown() and isinstance(size, sympy.Number): + # Take the negative part of the bound and add size to it + # Then take union of that and the positive part + # This is a tighter bound than that of a generic ops.where, as we have info on the cond + neg_bounds = var.bounds & ValueRanges(-int_oo, -1) + new_bounds = ValueRanges( + neg_bounds.lower + size, neg_bounds.upper + size + ) + # We don't have a good way of representing the empty range + if var.bounds.upper >= 0: + pos = var.bounds & ValueRanges(0, int_oo) + new_bounds = new_bounds | pos + + var = self.kernel.cse.generate( + self.kernel.compute, + stm, + bounds=new_bounds, + dtype=var.dtype, + shape=var.shape, + ) + + sympy_var = self.parent_handler.indirect_indexing(var, size, check) + if generate_assert(check): + assert_lower = not (var.bounds.lower >= 0) + # value ranges cannot x < s when x and s are symbols + assert_upper = not isinstance(size, sympy.Number) or not ( + var.bounds.upper < size + ) + self.kernel.check_bounds(sympy_var, size, assert_lower, assert_upper) + return sympy_var + + def check_bounds( + self, expr: sympy.Expr, size: sympy.Expr, lower: bool, upper: bool + ) -> None: + return self.kernel.check_bounds(expr, size, lower, upper) + + def load(self, name: str, index: sympy.Expr) -> CSEVariable: + if name in self.kernel.cse.invalidated_stores: + # A load from an invalidated store requires us to + # keep the actual buffer around + V.kernel.must_keep_buffers.add(name) + if free_symbol_is_type(index, SymT.TMP): + return self.kernel.indirect_load(name, index) + store_cache = self.kernel.cse.store_cache + if name in store_cache: + return store_cache[name] + out = self.kernel.load(name, index) + # count load that is not in the store_cache, and also not in the + # cse cache. + if out.use_count == 1: + self.kernel.num_load += 1 + return out + + def _update_store_cache(self, name: str, value: CSEVariable) -> None: + self.kernel.cse.store_cache[name] = value + if self.kernel.current_node and name in V.graph.name_to_buffer: + buf = self.kernel.current_node.get_output(name) + for other_name in buf.get_mutations(): + self.kernel.cse.store_cache[other_name] = value + + def store( + self, name: str, index: sympy.Expr, value: CSEVariable, mode: StoreMode = None + ) -> None: + self.kernel.store_buffer_names.add(name) + if mode is None: + self._update_store_cache(name, value) + if name not in V.graph.removed_buffers: + self.kernel.store(name, index, value, mode=mode) + self.kernel.num_store += 1 + + def device_assert_async(self, cond: CSEVariable, msg: str) -> None: + self.kernel.device_assert_async(cond, msg) + + # pyrefly: ignore [bad-override] + def partial_accumulate(self, *args: Any) -> None: + self.kernel.partial_accumulate(*args) + + def store_reduction(self, name: str, index: sympy.Expr, value: CSEVariable) -> None: + self.kernel.store_buffer_names.add(name) + self._update_store_cache(name, value) + + if name not in V.graph.removed_buffers: + self.kernel.num_store += 1 + return self.kernel.store_reduction(name, index, value) + + def reduction( + self, + dtype: torch.dtype, + src_dtype: torch.dtype, + reduction_type: ReductionType, + value: Union[CSEVariable, tuple[CSEVariable, ...]], + ) -> Union[CSEVariable, tuple[CSEVariable, ...]]: + self.kernel.num_reduction += 1 + return self.kernel.reduction(dtype, src_dtype, reduction_type, value) + + def scan( + self, + dtypes: tuple[torch.dtype, ...], + combine_fn: Callable[ + [tuple[CSEVariable, ...], tuple[CSEVariable, ...]], + tuple[CSEVariable, ...], + ], + values: tuple[CSEVariable, ...], + ) -> tuple[CSEVariable, ...]: + return self.kernel.scan(dtypes, combine_fn, values) + + def sort( + self, + dtypes: tuple[torch.dtype, ...], + values: tuple[CSEVariable, ...], + stable: bool, + descending: bool, + ) -> tuple[CSEVariable, ...]: + return self.kernel.sort(dtypes, values, stable, descending) + + def bucketize( + self, + values: CSEVariable, + boundaries: tuple[str, sympy.Expr, sympy.Expr, sympy.Expr], + boundary_indices: CSEVariable, + indexing_dtype: torch.dtype, + right: bool, + sorter: Optional[tuple[str, sympy.Expr]] = None, + sorter_indices: Optional[CSEVariable] = None, + ) -> CSEVariable: + """ + [Note: Inductor bucketize op] + + Inputs: + ------- + values: the values to be bucketized. + boundaries: a tuple containing + (a) the name of the boundaries tensor (which must be sorted, unless + the sorting tensor is present), + (b) the length of the tensor in the last dimension (i.e. the length of + one set of boundaries), + (c) the number of elements in the underlying storage (i.e. the length + of the flattened tensor, ignoring striding), and + (d) the stride of the tensor in the last dimension. + boundary_indices: indices into a flattened version of the boundaries + tensor, of the same size and shape as "values". Each index points to + the first element in the set of boundaries to be used for the + corresponding value. + indexing_dtype: the dtype to use when indexing into the boundaries + tensor. This must be int64 or int32. This additionally specifies the + dtype of the return value. + right: see "Details" below. + sorter: an optional tuple containing + (a) the name of an optional sorting tensor, used to access unsorted + boundaries without reordering the boundaries tensor, and + (b) the stride of the tensor in the last dimension. + The values in the sorting tensor are used as indices into the *last* + dimension of the boundaries tensor, with all other indices matching. + The size of the sorting and boundaries tensors must be equivalent. + sorter_indices: must be present if the sorting array is present; see + "boundary_indices" for the equivalent definition for the boundaries + tensor. + + Output: + ------- + The buckets each value belongs in, within a given set of boundaries. 0 + indicates a position before the first boundary, and len(boundaries_set) + represents a position after the last boundary. + + Details: + -------- + Given a value and a set of boundaries, calculate the bucket that each + value belongs to. This works differently in 1-D and N-D cases. + + for values [[-1, 0, 1, 2], [3, 4, 5, 9]], boundaries [0, 4, 4, 8], right=True + return = [[ 0, 1, 1, 1], [1, 3, 3, 4]]. + + for values [[-1, 0, 1, 2], [3, 4, 5, 9]], boundaries [[0, 4], [4, 8]], right=True + return = [[ 0, 1, 1, 1], [0, 1, 1, 2]] + + Note that in the N-D boundaries case, the shape of "values" and + "boundaries" must match in every dimension _except_ the last. + + When right == False, bucket i refers to range (boundaries[i], boundaries[i+1]]. + When right == True, bucket i refers to range [boundaries[i], boundaries[i+1]). + + Boundaries must be non-decreasing, or a sorter must be provided which + would re-index offsets in a non-decreasing order (e.g. the second output + of torch.sort(offsets)). Otherwise, the result is undefined. + """ + return self.kernel.bucketize( + values, + boundaries, + boundary_indices, + indexing_dtype, + right, + sorter, + sorter_indices, + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp.py new file mode 100644 index 0000000000000000000000000000000000000000..a9c45cd32981418fe1121c47c78aaac35b0e65b2 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp.py @@ -0,0 +1,5826 @@ +# mypy: allow-untyped-defs +import contextlib +import dataclasses +import functools +import itertools +import math +import operator +import re +import sys +import warnings +from collections.abc import Callable, Sequence +from enum import Enum +from typing import Any, cast, Optional, Union + +import sympy + +import torch +import torch.fx +from torch._inductor import dependencies +from torch._prims_common import is_float_dtype, is_integer_dtype +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.functions import CeilDiv, FloorDiv, ModularIndexing +from torch.utils._sympy.symbol import free_symbol_is_type, symbol_is_type, SymT + +from ..._dynamo.utils import counters +from .. import config, cpp_builder, cpu_vec_isa, ir, metrics +from ..debug import set_kernel_post_grad_provenance_tracing +from ..loop_body import LoopBody +from ..scheduler import ( + BaseSchedulerNode, + BaseScheduling, + ExternKernelSchedulerNode, + ForeachKernelSchedulerNode, + FusedSchedulerNode, + Scheduler, + SchedulerNode, +) +from ..utils import ( + cache_on_self, + get_bounds_index_expr, + get_fused_kernel_name, + has_free_symbols, + is_multi_outputs_template, + is_welford_reduction, + parallel_num_threads, + Placeholder, + sympy_index_symbol, + sympy_index_symbol_with_prefix, + sympy_product, + sympy_subs, +) +from ..virtualized import NullKernelHandler, ops, OpsValue, V +from .common import ( + BackendFeature, + BracesBuffer, + CSE, + CSEVariable, + DataTypePropagation, + DeferredLine, + DTYPE_TO_COMPUTATION_DTYPE, + IndentedBuffer, + Kernel, + KernelArgs, + OpOverrides, + OptimizationContext, +) +from .cpp_utils import ( + _get_dtype_from_loopbodies, + _get_loop_body, + cexpr, + cexpr_index, + codegen_rand, + CppCSEVariable, + DTYPE_TO_CPP, + get_promote_dtype, + INDEX_TYPE, + LocalBufferContext, + may_unify_binary_op_mask_type, + promote_args, + template_fusion_with_epilogues_supported, + unify_mask_base_type, + value_to_cpp, +) + + +_IS_WINDOWS = sys.platform == "win32" + + +@functools.cache +def get_export_declaration(): + return "__declspec(dllexport)" if _IS_WINDOWS else "" + + +schedule_log = torch._logging.getArtifactLogger(__name__, "schedule") + +NATIVE_OMP_RTYPES = OrderedSet(["+", "*", "^", "||", "min", "max"]) +RTYPE_TO_CPP = { + "sum": "+", + "prod": "*", + "xor_sum": "^", + "min": "min", + "max": "max", + "argmin": "argmin", + "argmax": "argmax", + "any": "||", + "welford_reduce": "welford", + "welford_combine": "welford", +} +VECTORIZABLE_RTYPES = OrderedSet( + [ + "max", + "min", + "sum", + "prod", + "xor_sum", + "welford_reduce", + "welford_combine", + "argmin", + "argmax", + "any", + ] +) + +PYTHON_TO_CPP = { + "Tensor": "at::Tensor", + "int": "long", + "float": "double", + "bool": "bool", + "str": "std::string", + "ScalarType": "c10::ScalarType", + "MemoryFormat": "at::MemoryFormat", + "Layout": "at::Layout", + "Device": "at::Device", + "number": "at::Scalar", +} + +CONTAINER_PYTHON_TO_CPP = { + "List": "std::vector", + "Optional": "std::optional", +} + +DTYPE_LOWP_FP = [ + torch.bfloat16, + torch.float16, +] + +VECTORIZABLE_DTYPES: list[torch.dtype] = [ + torch.float64, + torch.float, + torch.bfloat16, + torch.float16, + torch.bool, + torch.uint8, + torch.int8, + torch.int32, + torch.int64, + torch.float8_e4m3fn, + torch.float8_e5m2, +] + + +def reduction_init(reduction_type, dtype): + if dtype in DTYPE_LOWP_FP: + # Since load promotes all half-precision inputs to float, the initial + # constant for reduction must be promoted as well + dtype = torch.float32 + if reduction_type in ("xor_sum", "sum", "any"): + return 0 + if reduction_type == "prod": + return 1 + if reduction_type in ("max", "argmax", "min", "argmin"): + cdtype = DTYPE_TO_CPP[dtype] + if dtype == torch.bool and reduction_type in ("argmin", "argmax"): + cdtype = DTYPE_TO_CPP[torch.float] + min_var = ( + f"-std::numeric_limits<{cdtype}>::infinity()" + if is_float_dtype(dtype) + else f"std::numeric_limits<{cdtype}>::min()" + ) + max_var = ( + f"std::numeric_limits<{cdtype}>::infinity()" + if is_float_dtype(dtype) + else f"std::numeric_limits<{cdtype}>::max()" + ) + init_var = min_var if reduction_type in ("max", "argmax") else max_var + return ( + init_var + if reduction_type in ("max", "min") + else f"IndexValue<{cdtype}>{{0, {init_var}}}" + ) + if is_welford_reduction(reduction_type): + return f"Welford<{DTYPE_TO_CPP[dtype]}>()" + raise AssertionError(reduction_type) + + +def reduction_acc_type(reduction_type, dtype): + scalar_type = DTYPE_TO_CPP[DTYPE_TO_COMPUTATION_DTYPE[dtype]] + if is_welford_reduction(reduction_type): + return f"Welford<{scalar_type}>" + if reduction_type in ("argmin", "argmax"): + if dtype == torch.bool: + scalar_type = DTYPE_TO_CPP[torch.float] + return f"IndexValue<{scalar_type}>" + return scalar_type + + +def reduction_combine( + reduction_type, + var, + next_value, + helper_val=None, + index: Optional[sympy.Symbol] = None, + src_dtype=None, +): + is_bool = src_dtype == torch.bool + if reduction_type == "sum": + if helper_val: + return f"cascade_sum_combine({next_value}, &{helper_val})" + else: + conjunction = "|" if is_bool else "+" + return f"{var} {conjunction} {next_value}" + if reduction_type == "prod": + return f"{var} * {next_value}" + if reduction_type == "xor_sum": + return f"{var} ^ {next_value}" + if reduction_type == "any": + return f"{var} || {next_value}" + if reduction_type in ("min", "max"): + return f"{reduction_type}_propagate_nan({var}, {next_value})" + if reduction_type == "welford_reduce": + if helper_val: + return f"welford_combine({var}, {next_value}, &{helper_val})" + else: + return f"welford_combine({var}, {next_value})" + if reduction_type == "welford_combine": + if isinstance(next_value, tuple): + mean, m2, weight = next_value + else: + mean, m2, weight = reduction_project(reduction_type, next_value) + return f"welford_combine({var}, {{{mean}, {m2}, {weight}}})" + if reduction_type in ("argmin", "argmax"): + if ( + hasattr(next_value, "dtype") + and next_value.dtype == torch.bool + and not next_value.is_vec + ): + if index is not None: + return f"{reduction_type}_combine({var}, static_cast({next_value}), {index})" + else: + return ( + f"{reduction_type}_combine({var}, static_cast({next_value}))" + ) + if index is not None: + return f"{reduction_type}_combine({var}, {next_value}, {index})" + else: + return f"{reduction_type}_combine({var}, {next_value})" + raise AssertionError(reduction_type) + + +def reduction_project(reduction_type, acc): + if is_welford_reduction(reduction_type): + return f"{acc}.mean", f"{acc}.m2", f"{acc}.weight" + elif reduction_type in ("argmin", "argmax"): + return f"{acc}.index" + return acc + + +def move_code_under_inner_loop( + code: IndentedBuffer, + iter_var: sympy.Expr, + new_iter_var: str, + loop_start: sympy.Expr, + loop_end: sympy.Expr, +) -> BracesBuffer: + r""" + f(iter_var) is transformed to f(new_iter_var) under the inner loop + \/ + for (new_iter_var = loop_start; new_iter_var < loop_end; new_iter_var++) { + f(new_iter_var) + } + Please be careful while using this function, + as the variable defined in f(iter_var) will be invalid outside the for loop. + For example: + auto tmp0 = in_ptr[x0]; -> + for (new_x0 = start; new_x0 < end; new_x0++){ + auto tmp0 = in_ptr[new_x0]; + } + The tmp0 is invalid outside the loop. + """ + transformed_code = BracesBuffer() + with contextlib.ExitStack() as stack: + transformed_code.writeline( + f"for ({INDEX_TYPE} {new_iter_var} = {cexpr_index(loop_start)};" + + f"{new_iter_var} < {cexpr_index(loop_end)}; {new_iter_var}++)" + ) + stack.enter_context(transformed_code.indent()) + for _, line in enumerate(code._lines): + assert isinstance( + line, + ( + str, + DeferredLine, + ), + ) + deferred_name = None + if isinstance(line, DeferredLine): + deferred_name = line.name + line = line.line + new_line = re.sub(r"\b" + f"{iter_var}" + r"\b", f"{new_iter_var}", line) + if deferred_name: + new_line = DeferredLine(deferred_name, new_line) # type: ignore[assignment] + transformed_code.writeline(new_line) + return transformed_code + + +def reduction_prefix_array( + acc_var: Union[str, CSEVariable], + acc_type: str, + reduction_type: str, + dtype: torch.dtype, + len: Union[str, int], + init_fn, +): + """ + MSVC don't support dynamic array(VLA). So we use std::unique_ptr here. + Ref: https://stackoverflow.com/questions/56555406/creating-dynamic-sized-array-using-msvc-c-compiler + MSVC is the only one compiler without VLA. support. Since MSVC can't get good performance here. + We just use unique_ptr make it works on MSVC. + For other compilers, we continue to use VLA to get best performance. + """ + code_buffer = IndentedBuffer() + acc_decl = ( + f"auto {acc_var}_arr = std::make_unique<{acc_type}[]>({len});" + if cpp_builder.is_msvc_cl() + else f"{acc_type} {acc_var}_arr[{len}];" + ) + code_buffer.writeline(f"{acc_decl}") + code_buffer.writelines( + [ + f"for (int i = 0; i < {len}; i++)", + "{", + f" {acc_var}_arr[i] = {init_fn(reduction_type, dtype)};", + "}", + ], + ) + return code_buffer + + +def replace_acc_name(buffer: IndentedBuffer, name: str, new_name: str): + for i, line in enumerate(buffer._lines): + assert isinstance( + line, + ( + str, + DeferredLine, + ), + ) + if isinstance(line, DeferredLine): + line.line = re.sub(r"\b" + f"{name}" + r"\b", f"{new_name}", line.line) + else: + buffer._lines[i] = re.sub(r"\b" + f"{name}" + r"\b", f"{new_name}", line) + + +def replace_cascade_sum_with_add(buffer: IndentedBuffer): + """ + Replaces `acc = cascade_sum_combine(value, ...)` with `acc = acc + value;` + """ + + pattern = r"(.*?)\s*=\s*cascade_sum_combine\(([^,]+),.*?\);" + for i, line in enumerate(buffer._lines): + assert isinstance( + line, + ( + str, + DeferredLine, + ), + ) + content = line.line if isinstance(line, DeferredLine) else line + match = re.search(pattern, content) + if match: + acc, value = match.groups() + new_content = re.sub(pattern, f"{acc} = {acc} + {value};", content) + if isinstance(line, DeferredLine): + line.line = new_content + else: + buffer._lines[i] = new_content + + +@functools.lru_cache +def stride_at(index: sympy.Expr, var: sympy.Symbol): + if not index.has(var): + # see test_torchinductor_dynamic_shapes.py::test_full_boolean_dynamic_shapes_cpu + # which has tmp0 = ops.index_expr(s0 >= 1024, torch.bool) and fails below calculation. + # in this case, there is no dependencies between index and var. + return sympy.S.Zero + replacement = {var: var + 1} + new_index = sympy_subs(index, replacement) # type: ignore[arg-type] + return sympy.simplify(new_index - index) + + +@functools.lru_cache +def simplify_index_in_vec_range(index: sympy.Expr, var: sympy.Expr, vec_length: int): + """ + Simplifies the index expression within the range of a vectorized loop. + Given a vectorized loop variable `var` in the range of a loop with `vec_length`, + this function transforms the `index` into an equivalent form. It handles + simplifications for cases where `var` can be expressed as `vec_length * a + b`, + where `b` ranges from 0 to `vec_length - 1`. The function reduces occurrences + of `FloorDiv` and `ModularIndexing` in the `index` with best-effort optimizations. + + NOTE: + The simplified index expression is intended for analysis purposes only, not + for code generation. It replaces `FloorDiv` and `ModularIndexing` with free variables + which are not dependent on the loop variable `var` in the vectorized range. Check + https://github.com/pytorch/pytorch/pull/117221#discussion_r1449746217 for more details. + + Examples: + 1. If `var` is `x3` and `vec_length` is 16, and `x3 = 16*a + b`, then + `FloorDiv(x3, div)` or `ModularIndexing(x3, div, mod)` becomes a free variable + when `div` is divisible by 16. + 2. `ModularIndexing(x3, 1, mod)` can be simplified to `x3 + c` where `c` is a free + variable when `mod` is divisible by 16. + """ + + div_freevar_id = 0 + mod_freevar_id = 0 + + def visit_indexing_div(divisor): + nonlocal div_freevar_id + result = FloorDiv(var, divisor) + if sympy.gcd(divisor, vec_length) == vec_length: + result = sympy.Symbol(f"{var}_div_c{div_freevar_id}") + div_freevar_id += 1 + return result + + def visit_modular_indexing(divisor, modulus): + nonlocal mod_freevar_id + result = ModularIndexing(var, divisor, modulus) + if sympy.gcd(divisor, vec_length) == vec_length: + result = sympy.Symbol(f"{var}_mod_c{mod_freevar_id}") + mod_freevar_id += 1 + elif divisor == 1 and sympy.gcd(modulus, vec_length) == vec_length: + result = var + sympy.Symbol(f"{var}_mod_c{mod_freevar_id}") + mod_freevar_id += 1 + return result + + original_index = index + + div = sympy.Wild("divisor", integer=True) + if index.has(FloorDiv): + index = index.replace(FloorDiv(var, div), visit_indexing_div) + + mod = sympy.Wild("modulus", integer=True) + if index.has(ModularIndexing): + index = index.replace(ModularIndexing(var, div, mod), visit_modular_indexing) + + index = sympy.simplify(index) + if index != original_index: + return simplify_index_in_vec_range(index, var, vec_length) + + return index + + +@functools.lru_cache +def stride_at_vec_range( + index: sympy.Expr, var: sympy.Symbol, vec_length: Optional[int] = None +): + if vec_length: + index = simplify_index_in_vec_range(index, var, vec_length) + return stride_at(index, var) + + +@dataclasses.dataclass +class ParallelDepth: + """ + A class representing parallel depth. + Includes the starting depth of parallelism and the depth of parallelism. + """ + + parallel_depth: int + start_depth: int + + +class OuterLoopFusedSchedulerNode(FusedSchedulerNode): + @classmethod + def fuse( # type: ignore[override] + cls, node1: BaseSchedulerNode, node2: BaseSchedulerNode, outer_loop_fusion_depth + ): + assert node1.scheduler is node2.scheduler + assert all( + type(node) + in ( + OuterLoopFusedSchedulerNode, + SchedulerNode, + FusedSchedulerNode, + ) + for node in (node1, node2) + ) + if any(type(node) is OuterLoopFusedSchedulerNode for node in (node1, node2)): + return cls( + node1.scheduler, + # pyrefly: ignore [bad-argument-type] + ( + list(node1.get_outer_nodes()) + if type(node1) is OuterLoopFusedSchedulerNode + else [ + node1, + ] + ) + + ( + list(node2.get_outer_nodes()) + if type(node2) is OuterLoopFusedSchedulerNode + else [ + node2, + ] + ), + outer_loop_fusion_depth, + ) + else: + return cls(node1.scheduler, [node1, node2], outer_loop_fusion_depth) # type: ignore[list-item] + + def __init__( + self, + scheduler: "Scheduler", + outer_fused_nodes: list[Union[FusedSchedulerNode, SchedulerNode]], + outer_loop_fusion_depth, + ): + self.outer_fused_nodes: list[Union[FusedSchedulerNode, SchedulerNode]] = ( + outer_fused_nodes + ) + self.outer_loop_fusion_depth = outer_loop_fusion_depth + flatten_snodes = [] + for _node in self.outer_fused_nodes: + assert isinstance(_node, (SchedulerNode, FusedSchedulerNode)) + flatten_snodes.extend(list(_node.get_nodes())) + super().__init__(scheduler, flatten_snodes) # type: ignore[arg-type] + + def get_outer_nodes(self): + return self.outer_fused_nodes + + def check_outer_fusion_loop_level_attr( + self, cpp_kernel_proxy_list, outer_loop_fusion_depth + ): + # This function ensures that the same tiling split is applied at each loop level within the outer loop fusion depth. + # In the fusion stage, we only examine nodes with same vars and reduce. + # However, for nodes with same vars and reduce, the loops may still have different tile splits. + # For example (test_expr_vec_non_contiguous in test_cpu_repro.py): + # * buf0 tiling along the 2nd loop level, buf1 tiling along the 3rd loop level. + # If the check failed, we should fall back to standard loop codegen. + def _inner( + left_loop_nest: LoopNest, + right_loop_nest: LoopNest, + loop_fusion_depth: int, + current_checking_depth: int, + ) -> bool: + assert left_loop_nest.loops + assert right_loop_nest.loops + left_loop_level = left_loop_nest.loops[current_checking_depth] + right_loop_level = right_loop_nest.loops[current_checking_depth] + # Check if same loop level attr + outer_loops_attr_compare_list = [ + "var", + "size", + "offset", + "steps", + ] + if not ( + all( + getattr(left_loop_level, attr_compare) + == getattr(right_loop_level, attr_compare) + for attr_compare in outer_loops_attr_compare_list + ) + ): + return False + + assert loop_fusion_depth >= 1 + if (loop_fusion_depth := loop_fusion_depth - 1) > 0: + # Check next loop level attr + current_checking_depth = current_checking_depth + 1 + assert current_checking_depth < len(left_loop_nest.loops) + assert current_checking_depth < len(right_loop_nest.loops) + if not _inner( + left_loop_nest, + right_loop_nest, + loop_fusion_depth, + current_checking_depth, + ): + return False + + return True + + for idx in range(len(cpp_kernel_proxy_list) - 1): + left_loop_nest = cpp_kernel_proxy_list[idx].loop_nest + right_loop_nest = cpp_kernel_proxy_list[idx + 1].loop_nest + if not _inner( + left_loop_nest, + right_loop_nest, + outer_loop_fusion_depth, + 0, + ): + return False + + for cpp_kernel_proxy in cpp_kernel_proxy_list: + outer_ranges = functools.reduce( + operator.mul, + cpp_kernel_proxy.ranges[:outer_loop_fusion_depth], + ) + # When the range of the first inner loop is much larger than the range of + # all outer loops, do not fuse outer loop and fallback to standard loop codegen, + # so that the inner loops with larger range have a chance to be parallelized. + # We set a conservative threshold here: + # First inner loop range / all outer loops range > 300. + if ( + len(cpp_kernel_proxy.ranges) > outer_loop_fusion_depth + and isinstance(outer_ranges, sympy.Integer) + and isinstance( + cpp_kernel_proxy.ranges[outer_loop_fusion_depth], + sympy.Integer, + ) + and outer_ranges * 300 + < cpp_kernel_proxy.ranges[outer_loop_fusion_depth] + ): + return False + + return True + + def merge_outer_fusion_kernels( + self, + cpp_kernel_proxy_list, + ): + kernel_group = cpp_kernel_proxy_list[0].kernel_group + outer_loop_fused_kernel = OuterLoopFusedKernel(kernel_group) + outer_loop_fused_kernel.inner = [ + proxy.loop_nest.from_loop_level(self.outer_loop_fusion_depth) + for proxy in cpp_kernel_proxy_list + ] + outer_fused_proxy = cpp_kernel_proxy_list[0] + outer_fused_proxy.loop_nest.kernel = outer_loop_fused_kernel + outer_fused_proxy.loop_nest.loops = outer_fused_proxy.loop_nest.loops[ + : self.outer_loop_fusion_depth + ] + return outer_fused_proxy + + +class RecordOptimizationContext: + def __init__(self, func_name: str = ""): + self.func_name = func_name + self.current_node: Optional[torch.fx.Node] = None + self.opt_ctx: Optional[OptimizationContext] = None + + def __enter__(self): + assert V.interpreter + assert V.interpreter.current_node + + self.current_node = V.interpreter.current_node + assert self.current_node is not None + if OptimizationContext.key in self.current_node.meta: + self.opt_ctx = self.current_node.meta[OptimizationContext.key] + else: + self.opt_ctx = OptimizationContext() + assert self.opt_ctx is not None + self.opt_ctx.ops_name = self.func_name + return self + + def __exit__(self, exc_type, exc_val, exc_tb): + assert self.current_node + assert self.opt_ctx + self.current_node.meta[OptimizationContext.key] = self.opt_ctx + + def get_opt_ctx(self): + return self.opt_ctx + + def get_fx_node(self): + assert self.current_node + return self.current_node + + +def decltype_promoted(*args): + assert not any(isinstance(arg, CppCSEVariable) and arg.is_vec for arg in args), ( + "Promotion of vector types is not supported" + ) + + if (dt := get_promote_dtype(args)) is not None: + return DTYPE_TO_CPP[dt] + else: + return f"decltype({args[0]})" + + +class CppOverrides(OpOverrides): + """Map element-wise ops to C++""" + + @staticmethod + def add(a, b): + return f"{decltype_promoted(a, b)}({a} + {b})" + + @staticmethod + def sub(a, b): + return f"{decltype_promoted(a, b)}({a} - {b})" + + @staticmethod + def mul(a, b): + return f"{decltype_promoted(a, b)}({a} * {b})" + + @staticmethod + def to_dtype(x, dtype, src_dtype=None, use_compute_types=True): + assert isinstance(x, CppCSEVariable) + if src_dtype is None: + src_dtype = x.dtype + expr = V.kernel.get_to_dtype_expr(x, dtype, src_dtype) + csevar = V.kernel.cse.generate(V.kernel.compute, expr) + csevar.update_on_args("to_dtype", (x, dtype), {"src_dtype": src_dtype}) + if dtype in DTYPE_LOWP_FP and src_dtype == torch.float: + """ + https://github.com/pytorch/pytorch/issues/115260 + For FusedSchedulerNode[node1, node2], the node2 loads what node1 stores and the buffer is + in low-precision floating point data type. When the output of node1 also serves as the output of the + kernel, the result of nodes would be different from the case when output of node1 is not the output + of the kernel (where we don't need to insert `to_dtype` for legalization). To address the problem, on + storing the lowp node1 output, we also add the inverse dtype conversion to high precision data type + to the cse cache. + + Example (pseudo code): + node1_output = ... + node1_output_lowp = to_dtype(node1_output, dtype=torch.bfloat16) + store(buf, node1_output_lowp) + node2_input_lowp = load(buf) + node2_input = to_dtype(node2_input_lowp, dtype=torch.float) + + Without cse cache trick: + node1_output = ... + node1_output_lowp = to_dtype(node1_output, dtype=torch.bfloat16) + store(buf, node1_output_lowp) + node2_input_lowp = node_output_lowp # hit store cache + node2_input = to_dtype(node2_input_lowp, dtype=torch.float) + + With cse cache trick: + node1_output = ... + node1_output_lowp = to_dtype(node1_output, dtype=torch.bfloat16) + # also add `to_dtype(node1_input_lowp, dtype=torch.float)` -> `node1_output` to cse cache + store(buf, node1_output_lowp) + node2_input_lowp = node_output_lowp # hit store cache + node2_input = node1_output # hit cse cache + """ + V.kernel.cache_dtype_convert(x, src_dtype, csevar, dtype) + return csevar + + @staticmethod + def to_dtype_bitcast(x, dtype, src_dtype): + assert dtype in DTYPE_TO_CPP, f"{dtype} missing from {__name__}.DTYPE_TO_CPP" + return f"c10::bit_cast<{DTYPE_TO_CPP[dtype]}>({x})" + + @staticmethod + def abs(x): + return f"std::abs({x})" + + @staticmethod + def sin(x): + return f"std::sin({x})" + + @staticmethod + def cos(x): + return f"std::cos({x})" + + @staticmethod + def neg(x): + return f"decltype({x})(-{x})" + + @staticmethod + def exp(x): + # return f"Sleef_expf_u10({x})" + return f"std::exp({x})" + + @staticmethod + def exp2(x): + return f"std::exp2({x})" + + @staticmethod + def expm1(x): + return f"std::expm1({x})" + + @staticmethod + def erf(x): + return f"std::erf({x})" + + @staticmethod + def erfc(x): + return f"std::erfc({x})" + + @staticmethod + def erfinv(x): + return f"calc_erfinv({x})" + + @staticmethod + def sqrt(x): + return f"std::sqrt({x})" + + @staticmethod + def rsqrt(x): + return f"1 / std::sqrt({x})" + + @staticmethod + def log1p(x): + bug = config.cpp.inject_log1p_bug_TESTING_ONLY + if bug == "accuracy": + return f"{x} + decltype({x})(1)" + elif bug is None: + return f"std::log1p({x})" + else: + raise AssertionError( + f"unrecognized config cpp.inject_log1p_bug_TESTING_ONLY = {bug!r}" + ) + + @staticmethod + def tan(x): + return f"std::tan({x})" + + @staticmethod + def tanh(x): + return f"std::tanh({x})" + + @staticmethod + def signbit(x): + """ + On windows std::signbit only support float type. + Ref: https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/signbit?view=msvc-170 + """ + return ( + f"std::signbit(static_cast({x}))" + if _IS_WINDOWS + else f"std::signbit({x})" + ) + + @staticmethod + def pow(a, b): + return f"std::pow({a}, {b})" + + @staticmethod + def log(x): + return f"std::log({x})" + + @staticmethod + def round(x): + return f"std::nearbyint({x})" + + @staticmethod + def floor(x): + return f"std::floor({x})" + + @staticmethod + def floordiv(a, b): + # a and b are integer type + quot = f"{a} / {b}" + rem = f"{a} % {b}" + return f"(({a} < 0) != ({b} < 0) ? ({rem} != 0 ? {quot} - 1 : {quot}) : {quot})" + + @staticmethod + def ceil(x): + return f"std::ceil({x})" + + @staticmethod + def trunc(x): + return f"std::trunc({x})" + + @staticmethod + def truncdiv(a, b): + # a and b are integer type + return f"{a} / {b}" + + @staticmethod + def fmod(a, b): + return f"std::fmod({a}, {b})" + + @staticmethod + def isinf(x): + return f"std::isinf({x})" + + @staticmethod + def isnan(x): + return f"std::isnan({x})" + + @staticmethod + def lgamma(x): + return f"std::lgamma({x})" + + @staticmethod + def acos(x): + return f"std::acos({x})" + + @staticmethod + def acosh(x): + return f"std::acosh({x})" + + @staticmethod + def cosh(x): + return f"std::cosh({x})" + + @staticmethod + def sinh(x): + return f"std::sinh({x})" + + @staticmethod + def asin(x): + return f"std::asin({x})" + + @staticmethod + def asinh(x): + return f"std::asinh({x})" + + @staticmethod + def atan2(x, y): + return f"std::atan2({x}, {y})" + + @staticmethod + def atan(x): + return f"std::atan({x})" + + @staticmethod + def atanh(x): + return f"std::atanh({x})" + + @staticmethod + def copysign(x, y): + return f"std::copysign({x}, {y})" + + @staticmethod + def frexp(x): + cache_keys = f"frexp({x})[0]", f"frexp({x})[1]" + if all(V.kernel.cse.try_get(cache_key) is not None for cache_key in cache_keys): + return tuple(V.kernel.cse.try_get(cache_key) for cache_key in cache_keys) + + code = BracesBuffer() + exponent = V.kernel.cse.newvar(dtype=torch.int32, shape=x.shape) + mantissa = V.kernel.cse.newvar(dtype=x.dtype, shape=x.shape) + code.writeline(f"int32_t {exponent};") + code.writeline(f"auto {mantissa} = std::frexp({x}, &{exponent});") + V.kernel.compute.splice(code) + cse_vars = (mantissa, exponent) + for cache_key, cse_var in zip(cache_keys, cse_vars): + V.kernel.cse.put(cache_key, cse_var) + return mantissa, exponent + + @staticmethod + def hypot(x, y): + return f"std::hypot({x}, {y})" + + @staticmethod + def log10(x): + return f"std::log10({x})" + + @staticmethod + def log2(x): + return f"std::log2({x})" + + @staticmethod + def nextafter(x, y): + return f"std::nextafter({x}, {y})" + + @staticmethod + def relu(x): + bug = config.cpp.inject_relu_bug_TESTING_ONLY + if bug == "compile_error": + return "compile error!" + elif bug == "runtime_error": + return f"{x}; throw 1" + elif bug == "accuracy": + return f"{x} + decltype({x})(1)" + elif bug is None: + return f"std::max({x}, decltype({x})(0))" + else: + raise AssertionError( + f"unrecognized config cpp.inject_relu_bug_TESTING_ONLY = {bug!r}" + ) + + @staticmethod + def minimum(a, b): + return f"min_propagate_nan({a}, {b})" + + @staticmethod + def maximum(a, b): + return f"max_propagate_nan({a}, {b})" + + @staticmethod + def where(a, b, c): + return f"{a} ? {b} : {c}" + + @staticmethod + def mod(a, b): + return f"mod({a}, {b})" + + @staticmethod + def constant(val, dtype): + return value_to_cpp(val, DTYPE_TO_CPP[dtype]) + + @staticmethod + def index_expr(expr, dtype): + idx_str = cexpr(V.kernel.rename_indexing(expr)) + var = V.kernel.cse.generate( + V.kernel.compute, idx_str, bounds=get_bounds_index_expr(expr) + ) + return ops.to_dtype(var, dtype) + + @staticmethod + def masked(mask, body, other): + code = BracesBuffer() + + # Write masked operation into a lambda + body_var = V.kernel.cse.newvar() + code.writeline(f"auto {body_var} = [&]") + with V.kernel.swap_buffers(code), code.indent(): + result = body() + code.writeline(f"return {result};") + code.writeline(";") + V.kernel.compute.splice(code) + + # Use the lambda's return type as the type of other + other_code = value_to_cpp(other, f"decltype({body_var}())") + return f"{mask} ? {body_var}() : {other_code}" + + @staticmethod + def logical_and(a, b): + return f"{a} && {b}" + + @staticmethod + def logical_not(a): + return f"!{a}" + + @staticmethod + def logical_or(a, b): + return f"{a} || {b}" + + @staticmethod + def logical_xor(a, b): + return f"{a} != {b}" + + @staticmethod + def bitwise_and(a, b): + return f"decltype({a})({a} & {b})" + + @staticmethod + def bitwise_not(a): + return f"decltype({a})(~{a})" + + @staticmethod + def bitwise_or(a, b): + return f"decltype({a})({a} | {b})" + + @staticmethod + def bitwise_xor(a, b): + return f"decltype({a})({a} ^ {b})" + + @staticmethod + def bitwise_left_shift(a, b): + code = BracesBuffer() + code.writeline("[&]()") + with code.indent(): + scalar_t = DTYPE_TO_CPP[a.dtype] + code.writeline( + f"constexpr decltype({b}) max_shift = sizeof({scalar_t}) * CHAR_BIT;" + ) + code.writeline( + f"if ((static_cast>({b}) < 0) || ({b} >= max_shift))" + ) + with code.indent(): + code.writeline(f"return decltype({a})(0);") + code.writeline( + f"return decltype({a})(static_cast>({a}) << {b});" + ) + code.writeline("()") + return code + + @staticmethod + def bitwise_right_shift(a, b): + code = BracesBuffer() + code.writeline("[&]()") + with code.indent(): + scalar_t = DTYPE_TO_CPP[a.dtype] + code.writeline( + f"constexpr decltype({b}) max_shift = sizeof({scalar_t}) * CHAR_BIT - std::is_signed_v<{scalar_t}>;" + ) + code.writeline( + f"if ((static_cast>({b}) < 0) || ({b} >= max_shift))" + ) + with code.indent(): + code.writeline(f"return decltype({a})({a} >> max_shift);") + code.writeline(f"return decltype({a})({a} >> {b});") + code.writeline("()") + return code + + @staticmethod + def rand(seed: sympy.Expr, offset: sympy.Expr): + return f"normalized_rand_cpu({seed}, {offset})" + + @staticmethod + def randn(seed: sympy.Expr, offset: sympy.Expr): + return f"randn_cpu({seed}, {offset})" + + @staticmethod + def randint64(seed: sympy.Expr, offset: sympy.Expr, low, high): + return f"randint64_cpu({seed}, {offset}, {low}, {high})" + + @staticmethod + def sigmoid(x): + return f"decltype({x})(1) / (decltype({x})(1) + std::exp(-{x}))" + + @staticmethod + def sign(x): + code = BracesBuffer() + scalar_zero = f"decltype({x})(0)" + scalar_one = f"decltype({x})(1)" + code.writeline("[&]()") + with code.indent(): + code.writeline(f"auto left = {x} > 0 ? {scalar_one} : {scalar_zero};") + code.writeline(f"auto right = {x} < 0 ? {scalar_one} : {scalar_zero};") + code.writeline("return left - right;") + code.writeline("()") + return code + + def partial_accumulate( + self, + name: str, + reduction_type: str, + value: CSEVariable, + extra_meta: dict[str, Any], + ) -> None: + raise NotImplementedError + + +CppOverrides._initialize_pointwise_overrides("cpp") + + +class CppVecOverrides(CppOverrides): + """Map element-wise ops to aten vectorization C++""" + + def __new__(cls, *args, **kargs): + self = super().__new__(cls) + + def wrap(func): + # `CppVecKernel` generates both scalar ops and vector ops according to + # whether the inputs are scalars or vectors while all ops in `CppVecOverrides` + # (except for some ops explained below) assume the inputs are vectors. We wrap the ops in + # `CppVecOverrides` to broadcast scalar inputs to vectors if needed or fallback to + # `CppOverrides` when all inputs are scalars. + # + # Notes on ops handled separately in their own functions: + # `ops.masked`: + # needs recursive handling of masked body. + # `ops.index_expr`: + # needs to further analyze the dependency of the index expression on + # the tiling itervar. + def wrapper(*args, **kwargs): + scalars = [ + arg + for arg in args + if isinstance(arg, (int, sympy.Expr)) + or (isinstance(arg, CppCSEVariable) and not arg.is_vec) + ] + vectors = [ + arg + for arg in args + if isinstance(arg, CppCSEVariable) and arg.is_vec + ] + new_args = list(args) + if scalars and vectors: + new_args = [] + for arg in args: + if isinstance(arg, (int, sympy.Expr)): + if isinstance(arg, sympy.Expr) and not arg.is_number: + arg = ops.index_expr(arg, torch.int64) + else: + arg = ops.constant(arg, torch.int64) + arg = arg.value if isinstance(arg, OpsValue) else arg + new_args.append(arg) + + # DType Promotion + if vectors: + # We have saw several data type mismatch issues related with index_expr in + # the lowering phase of torch.int8. torch.int32, torch.int64. + # 1. int32 and int64 in test_torchinductor.py::test_max_pool2d_with_indices_backward3_cpu + # 2. int8 and int32 in test_torchinductor.py::test_max_pool2d5_cpu + # 3. int32 and fp32 in test_torchinductor_dynamic_shapes.py::test_avg_pool2d8_dynamic_shapes_cpu + if len(new_args) == 2: + new_args = promote_args(new_args) + elif func is CppVecOverrides.where: + new_args[1:] = promote_args(new_args[1:]) + + # Broadcast scalar args to vector + if scalars and vectors: + assert isinstance(V.kernel, CppVecKernel) + new_args = [ + ( + V.kernel.broadcast(new_arg) + if ( + isinstance(new_arg, CppCSEVariable) + and not new_arg.is_vec + and func + not in [ + CppVecOverrides.rand, + CppVecOverrides.randn, + CppVecOverrides.randint64, + ] + ) + else new_arg + ) + for new_arg in new_args + ] + + if vectors: + return func(*new_args, **kwargs) + else: + # fallback to scalar ops + scalar_ops = super(CppVecOverrides, self) + scalar_func = getattr(scalar_ops, func.__name__) + assert scalar_func is not None + return scalar_func(*args, **kwargs) + + return wrapper + + for name, method in vars(CppVecOverrides).items(): + if getattr(method, "__class__", None) is staticmethod and name not in [ + "masked", + "index_expr", + ]: + setattr(self, name, wrap(method.__func__)) + + return self + + @staticmethod + def add(a, b): + return f"{a} + {b}" + + @staticmethod + def sub(a, b): + return f"{a} - {b}" + + @staticmethod + def mul(a, b): + return f"{a} * {b}" + + @staticmethod + def truediv(a, b): + return f"{a} / {b}" + + @staticmethod + def abs(x): + return f"{x}.abs()" + + @staticmethod + def sin(x): + return f"{x}.sin()" + + @staticmethod + def cos(x): + return f"{x}.cos()" + + @staticmethod + def exp(x): + return f"{x}.exp()" + + @staticmethod + def exp2(x): + return f"{x}.exp2()" + + @staticmethod + def expm1(x): + # decompose for a better performance + vec_one = f"decltype({x})(1)" + return f"{x}.exp() - {vec_one}" + + @staticmethod + def erf(x): + return f"{x}.erf()" + + @staticmethod + def erfc(x): + return f"{x}.erfc()" + + @staticmethod + def erfinv(x): + return f"{x}.erfinv()" + + @staticmethod + def sqrt(x): + return f"{x}.sqrt()" + + @staticmethod + def eq(x, y): + assert isinstance(V.kernel, CppVecKernel) + assert isinstance(x, CppCSEVariable) + assert x.dtype is not None + return f"{V.kernel._get_mask_type(x.dtype)}({x} == {y})" + + @staticmethod + def ne(x, y): + assert isinstance(V.kernel, CppVecKernel) + assert isinstance(x, CppCSEVariable) + if x.dtype == torch.bool: + assert y.dtype == torch.bool + x_cast, y_cast = unify_mask_base_type(V.kernel.compute, (x, y)) + return f"{x_cast} != {y_cast}" + else: + assert x.dtype is not None + return f"{V.kernel._get_mask_type(x.dtype)}({x} != {y})" + + @staticmethod + def lt(x, y): + assert isinstance(V.kernel, CppVecKernel) + assert isinstance(x, CppCSEVariable) + assert x.dtype is not None + return f"{V.kernel._get_mask_type(x.dtype)}({x} < {y})" + + @staticmethod + def gt(x, y): + assert isinstance(V.kernel, CppVecKernel) + assert isinstance(x, CppCSEVariable) + assert x.dtype is not None + return f"{V.kernel._get_mask_type(x.dtype)}({x} > {y})" + + @staticmethod + def le(x, y): + assert isinstance(V.kernel, CppVecKernel) + assert isinstance(x, CppCSEVariable) + assert x.dtype is not None + return f"{V.kernel._get_mask_type(x.dtype)}({x} <= {y})" + + @staticmethod + def ge(x, y): + assert isinstance(V.kernel, CppVecKernel) + assert isinstance(x, CppCSEVariable) + assert x.dtype is not None + return f"{V.kernel._get_mask_type(x.dtype)}({x} >= {y})" + + @staticmethod + def and_(x, y): + return f"{x} & {y}" + + @staticmethod + def rsqrt(x): + return f"{x}.rsqrt()" + + @staticmethod + def pow(a, b): + return f"{a}.pow({b})" + + @staticmethod + def log(x): + return f"{x}.log()" + + @staticmethod + def round(x): + return f"{x}.round()" + + @staticmethod + def floor(x): + return f"{x}.floor()" + + @staticmethod + def ceil(x): + return f"{x}.ceil()" + + @staticmethod + def trunc(x): + return f"{x}.trunc()" + + @staticmethod + def fmod(a, b): + return f"{a}.fmod({b})" + + @staticmethod + def lgamma(x): + return f"{x}.lgamma()" + + @staticmethod + def logical_and(a, b): + a, b = may_unify_binary_op_mask_type(a, b) + return f"{a} & {b}" + + @staticmethod + def logical_not(a): + return f"~{a}" + + @staticmethod + def logical_or(a, b): + a, b = may_unify_binary_op_mask_type(a, b) + return f"{a} | {b}" + + @staticmethod + def logical_xor(a, b): + a, b = may_unify_binary_op_mask_type(a, b) + return f"{a} ^ {b}" + + @staticmethod + def bitwise_and(a, b): + a, b = may_unify_binary_op_mask_type(a, b) + return f"{a} & {b}" + + @staticmethod + def bitwise_not(a): + return f"~{a}" + + @staticmethod + def bitwise_or(a, b): + a, b = may_unify_binary_op_mask_type(a, b) + return f"{a} | {b}" + + @staticmethod + def bitwise_xor(a, b): + a, b = may_unify_binary_op_mask_type(a, b) + return f"{a} ^ {b}" + + @staticmethod + def bitwise_left_shift(a, b): + return f"{a} << {b}" + + @staticmethod + def bitwise_right_shift(a, b): + return f"{a} >> {b}" + + @staticmethod + def load_seed(name, offset): + assert isinstance(V.kernel, CppVecKernel) + return f"{V.kernel.load(name, offset)}" + + @staticmethod + def rand(seed, offset): + assert isinstance(V.kernel, CppVecKernel) + code = BracesBuffer() + rand_function = ( + f"result[offset_idx] = normalized_rand_cpu({seed}, offset[offset_idx]);" + ) + return codegen_rand(offset, code, rand_function) + + @staticmethod + def randn(seed, offset): + assert isinstance(V.kernel, CppVecKernel) + code = BracesBuffer() + rand_function = f"result[offset_idx] = randn_cpu({seed}, offset[offset_idx]);" + return codegen_rand(offset, code, rand_function) + + @staticmethod + def randint64(seed, offset, low, high): + assert isinstance(V.kernel, CppVecKernel) + code = BracesBuffer() + rand_function = f"result[offset_idx] = randint64_cpu({seed}, offset[offset_idx], {low}, {high});" + return codegen_rand(offset, code, rand_function, torch.int64) + + @staticmethod + def remainder(a, b): + assert a.dtype == b.dtype, ( + "remainder vec implementation expect the same inputs' dtype." + ) + return f"{a} - ({CppVecOverrides.floordiv(a, b)}) * {b}" + + @staticmethod + def tan(a): + return f"{a}.tan()" + + @staticmethod + def tanh(a): + if config.cpp.use_decompose_tanh: + vec_one = f"decltype({a})(1)" + vec_two = f"decltype({a})(2)" + vec_minus_two = f"decltype({a})(-2)" + return ( + f"{vec_two} / ({vec_one} + ({vec_minus_two} * {a}).exp()) - {vec_one}" + ) + else: + return f"{a}.tanh()" + + @staticmethod + def reciprocal(a): + return f"{a}.reciprocal()" + + @staticmethod + def atan(x): + return f"{x}.atan()" + + @staticmethod + def acos(x): + return f"{x}.acos()" + + @staticmethod + def asin(x): + return f"{x}.asin()" + + @staticmethod + def cosh(x): + return f"{x}.cosh()" + + @staticmethod + def sinh(x): + return f"{x}.sinh()" + + @staticmethod + def log10(x): + return f"{x}.log10()" + + @staticmethod + def log2(x): + return f"{x}.log2()" + + @staticmethod + def nextafter(x, y): + return f"{x}.nextafter({y})" + + @staticmethod + def copysign(a, b): + return f"{a}.copysign({b})" + + @staticmethod + def atan2(a, b): + return f"{a}.atan2({b})" + + @staticmethod + def hypot(a, b): + return f"{a}.hypot({b})" + + @staticmethod + def atanh(x): + # For real x, atanh(x) = 1/2 * log((1+x)/(1-x)) + vec_one = f"decltype({x})(1)" + vec_one_half = f"decltype({x})(0.5)" + return f"{vec_one_half} * (({vec_one} + {x})/({vec_one} - {x})).log()" + + @staticmethod + def asinh(x): + return f"{x}.asinh()" + + @staticmethod + def acosh(x): + return f"{x}.acosh()" + + @staticmethod + def relu(x): + bug = config.cpp.inject_relu_bug_TESTING_ONLY + if bug == "compile_error": + return "compile error!" + elif bug == "runtime_error": + return f"{x}; throw 1" + elif bug == "accuracy": + return f"{x} + decltype({x})(1)" + elif bug is None: + return f"at::vec::clamp_min({x}, decltype({x})(0))" + else: + raise AssertionError( + f"unrecognized config cpp.inject_relu_bug_TESTING_ONLY = {bug!r}" + ) + + # TODO: this seems to be dead + @staticmethod + def sigmoid(x): + return f"decltype({x})(1)/(decltype({x})(1) + {x}.neg().exp())" + + @staticmethod + def neg(x): + return f"{x}.neg()" + + @staticmethod + def floordiv(a, b): + if is_float_dtype(a.dtype): + assert a.dtype == b.dtype, ( + "div_floor_floating_vec implementation expect the same inputs' dtype." + ) + return f"div_floor_floating_vec({a}, {b})" + else: + assert all(is_integer_dtype(item.dtype) for item in [a, b]) + # a and b are integer type + _t = f"decltype({a})" + if V.kernel._get_raw_num_vectors(b.dtype) < 1: + # Doing blend to set the remaining bits of b to non-zero + b = f"{_t}::blend<{(1 << V.kernel.tiling_factor) - 1}>({_t}(1), {b})" + quot = f"{a} / {b}" + has_rem = f"({a} % {b} != {_t}(0))" + is_neg = f"(({a} < {_t}(0)) != ({b} < {_t}(0)))" + return f"{_t}::blendv({quot}, {quot} - {_t}(1), {has_rem} & {is_neg})" + + @staticmethod + def truncdiv(a, b): + # a and b are integer type + if V.kernel._get_raw_num_vectors(b.dtype) < 1: + # Doing blend to set the remaining bits of b to non-zero + _t = f"decltype({b})" + b = f"{_t}::blend<{(1 << V.kernel.tiling_factor) - 1}>({_t}(1), {b})" + return f"{a} / {b}" + + @staticmethod + def minimum(a, b): + if a.dtype == torch.bool: + assert b.dtype == torch.bool + a_cast, b_cast = unify_mask_base_type(V.kernel.compute, (a, b)) + return f"{a_cast} & {b_cast}" + else: + return f"at::vec::minimum({a}, {b})" + + @staticmethod + def maximum(a, b): + if a.dtype == torch.bool: + assert b.dtype == torch.bool + a_cast, b_cast = unify_mask_base_type(V.kernel.compute, (a, b)) + return f"{a_cast} | {b_cast}" + else: + return f"at::vec::maximum({a}, {b})" + + @staticmethod + def square(a): + return f"{a} * {a}" + + @staticmethod + def where(a, b, c): + assert isinstance(V.kernel, CppVecKernel) + if b.dtype == torch.bool: + assert c.dtype == torch.bool + blendv_a, blendv_b, blendv_c = unify_mask_base_type( + V.kernel.compute, (a, b, c) + ) + return f"decltype({blendv_b})::blendv({blendv_c}, {blendv_b}, {blendv_a})" + else: + return f"decltype({b})::blendv({c}, {b}, {V.kernel._get_mask_cast(a, b.dtype)})" + + @staticmethod + def sign(x): + code = BracesBuffer() + vec_zero = f"decltype({x})(0)" + vec_one = f"decltype({x})(1)" + blendv_l = f"decltype({x})::blendv({vec_zero}, {vec_one}, {vec_zero} < {x})" + blendv_r = f"decltype({x})::blendv({vec_zero}, {vec_one}, {x} < {vec_zero})" + code.writeline("[&]()") + with code.indent(): + code.writeline(f"auto left = {blendv_l};") + code.writeline(f"auto right = {blendv_r};") + code.writeline("return left - right;") + code.writeline("()") + return code + + @staticmethod + def to_dtype(x, dtype, src_dtype=None, use_compute_dtypes=True): + assert dtype in [ + torch.bool, + torch.float64, + torch.float, + torch.bfloat16, + torch.float16, + torch.uint8, + torch.int8, + torch.int32, + torch.int64, + torch.float8_e4m3fn, + torch.float8_e5m2, + ], f"{__name__} does not support {dtype}" + assert isinstance(x, CppCSEVariable) + src_dtype = x.dtype + expr = V.kernel.get_to_dtype_expr(x, dtype, src_dtype) + csevar = V.kernel.cse.generate(V.kernel.compute, expr) + csevar.update_on_args("to_dtype", (x, dtype), {"src_dtype": src_dtype}) + if dtype in DTYPE_LOWP_FP and src_dtype == torch.float: + V.kernel.cache_dtype_convert(x, src_dtype, csevar, dtype) + return csevar + + @staticmethod + def log1p(x): + bug = config.cpp.inject_log1p_bug_TESTING_ONLY + if bug == "accuracy": + return f"{x} + decltype({x})(1)" + elif bug is None: + return f"{x}.log1p()" + else: + raise AssertionError( + f"unrecognized config cpp.inject_log1p_bug_TESTING_ONLY = {bug!r}" + ) + + @staticmethod + def masked(mask, body, other): + assert isinstance(V.kernel, CppVecKernel) + code = BracesBuffer() + var = V.kernel.cse.newvar() + with V.kernel.masked(mask) as new_mask: + code.writeline(f"auto {var} = [&]") + with V.kernel.swap_buffers(code), code.indent(): + result = body() + code.writeline(f"return {result};") + code.writeline(";") + V.kernel.compute.splice(code) + + dtype = result.dtype + body_code = f"{var}()" + + def maskify_or_vecify(code): + return ( + f"{V.kernel._get_mask_type()}::from({code})" + if dtype == torch.bool + else f"{V.kernel._get_vec_type(dtype)}({code})" + ) + + if result.is_vec: + body_code_vec = body_code + else: + body_code_vec = maskify_or_vecify(body_code) + other_code = value_to_cpp(other, DTYPE_TO_CPP[dtype]) + # loading bool as VecMask + other_code_vec = maskify_or_vecify(other_code) + assert isinstance(new_mask, CppCSEVariable), new_mask + if new_mask.is_vec: + code = BracesBuffer() + code.writeline("[&]") + with V.kernel.swap_buffers(code), code.indent(): + code.writeline(f"if ({new_mask}.all_zero())") + with code.indent(): + code.writeline(f"return {other_code_vec};") + code.writeline("else") + with code.indent(): + # Create cse variable to reuse kernel.overrides.where + body_vec_var = V.kernel.cse.generate( + V.kernel.compute, + body_code_vec, + ) + other_vec_var = V.kernel.cse.generate( + V.kernel.compute, + other_code_vec, + ) + assert isinstance(body_vec_var, CppCSEVariable), body_vec_var + assert isinstance(other_vec_var, CppCSEVariable), other_vec_var + body_vec_var.dtype = dtype + other_vec_var.dtype = dtype + overrides: type[Union[CppOverrides, CppVecOverrides]] = ( + # pyrefly: ignore [bad-assignment] + V.kernel.overrides + ) # type: ignore[has-type] + code.writeline( + f"return {overrides.where(new_mask, body_vec_var, other_vec_var)};" + ) + code.writeline("()") + csevar = V.kernel.cse.generate( + V.kernel.compute, + code, + ) + result.is_vec = True + elif result.is_vec: + csevar = V.kernel.cse.generate( + V.kernel.compute, f"{mask} ? {body_code_vec} : {other_code_vec}" + ) + else: + csevar = V.kernel.cse.generate( + V.kernel.compute, f"{mask} ? {body_code} : {other_code}" + ) + # `result` is explicitly added to the args for correct propagation + # of relevant itervars and vectorization status. + csevar.update_on_args("masked", (mask, body, other, result), {}) + return csevar + + @staticmethod + def index_expr(expr, dtype): + assert isinstance(V.kernel, CppVecKernel) + index = V.kernel.rename_indexing(expr) + tiling_var = V.kernel.itervars[V.kernel.tiling_idx] + stride = V.kernel._try_get_const_stride(index, tiling_var) + if stride == 0: + return CppOverrides.index_expr(expr, dtype) + elif stride is not None: + idx = V.kernel.cse.generate( + V.kernel.compute, cexpr(index), bounds=get_bounds_index_expr(expr) + ) + value = ops.to_dtype(idx, dtype) + if isinstance(value, OpsValue): + value = value.value + csevar = V.kernel.arange(value, stride) + else: + csevar = V.kernel._load_or_store_non_contiguous( # type: ignore[assignment] + None, index, dtype, V.kernel.compute + ) + # pyrefly: ignore [missing-attribute] + csevar.update_on_args("index_expr", (expr, dtype), {}) + return csevar + + @staticmethod + def frexp(x): + cache_keys = f"frexp({x})[0]", f"frexp({x})[1]" + if all(V.kernel.cse.try_get(cache_key) is not None for cache_key in cache_keys): + return tuple(V.kernel.cse.try_get(cache_key) for cache_key in cache_keys) + + cdtype = DTYPE_TO_CPP[x.dtype] + size = V.kernel.tail_size if V.kernel.tail_size else V.kernel.tiling_factor + code = BracesBuffer() + exponent = V.kernel.cse.newvar(dtype=torch.int32) + mantissa = V.kernel.cse.newvar(dtype=x.dtype) + exponent.update_on_args("frexp", (x,), kwargs={}) + mantissa.update_on_args("frexp", (x,), kwargs={}) + n_vec = V.kernel._get_num_vectors(x.dtype) + mantissa_t = ( + f"at::vec::Vectorized<{cdtype}>" + if n_vec == 1 + else f"at::vec::VectorizedN<{cdtype}, {n_vec}>" + ) + code.writeline( + f"at::vec::Vectorized {exponent};" + if n_vec == 1 + else f"at::vec::VectorizedN {exponent};" + ) + code.writeline(f"{mantissa_t} {mantissa};") + code.writeline("[&]()") + with code.indent(): + code.writeline( + f"__at_align__ std::array<{cdtype}, {V.kernel.tiling_factor}> tmpbuf;" + ) + code.writeline(f"{x}.store(tmpbuf.data(), {cexpr_index(size)});") + code.writeline( + f"__at_align__ std::array tmpbuf_exponent;" + ) + code.writeline( + f"__at_align__ std::array<{cdtype}, {V.kernel.tiling_factor}> tmpbuf_mantissa;" + ) + code.writeline(f"for (int i = 0; i < {cexpr_index(size)}; i++)") + with code.indent(): + code.writeline( + "tmpbuf_mantissa[i] = std::frexp(tmpbuf[i], &tmpbuf_exponent[i]);" + ) + code.writeline( + f"{exponent} = at::vec::Vectorized::loadu(tmpbuf_exponent.data(), {cexpr_index(size)});" + if n_vec == 1 + else f"{exponent} = at::vec::VectorizedN::loadu(tmpbuf_exponent.data(), {cexpr_index(size)});" + ) + code.writeline( + f"{mantissa} = {mantissa_t}::loadu(tmpbuf_mantissa.data(), {cexpr_index(size)});" + ) + code.writeline("();") + V.kernel.compute.splice(code) + cse_vars = (mantissa, exponent) + for cache_key, cse_var in zip(cache_keys, cse_vars): + V.kernel.cse.put(cache_key, cse_var) + return mantissa, exponent + + @classmethod + def _scalarize(cls, scalar_func): + def inner(*args, **kwargs): + assert not kwargs + kernel = V.kernel + assert isinstance(kernel, CppVecKernel) + code = BracesBuffer() + code.writeline("[&]()") + vec_dtype = args[0].dtype + n_vec = kernel._get_num_vectors(vec_dtype) + size = kernel.tail_size if kernel.tail_size else kernel.tiling_factor + scalar_args = [] + cdtype = DTYPE_TO_CPP[vec_dtype] + output_mask = scalar_func.__name__ in ( + "isinf", + "isnan", + "signbit", + ) + octype = "bool" if output_mask else cdtype + octype = ( + DTYPE_TO_CPP[args[-2]] + if (scalar_func.__name__ == "to_dtype_bitcast") + else octype + ) + with code.indent(): + for argidx, arg in enumerate(args): + if isinstance(arg, CppCSEVariable): + assert arg.is_vec + assert arg.dtype == vec_dtype + code.writeline( + f"__at_align__ std::array<{cdtype}, {kernel.tiling_factor}> tmpbuf{argidx};" + ) + code.writeline( + f"{arg}.store(tmpbuf{argidx}.data(), {cexpr_index(size)});" + ) + scalar_args.append(f"tmpbuf{argidx}[i]") + else: + scalar_args.append(arg) + code.writeline( + f"__at_align__ std::array<{octype}, {kernel.tiling_factor}> tmpbuf_out;" + ) + res = scalar_func(*scalar_args) + code.writeline(f"for (int i = 0; i < {cexpr_index(size)}; i++)") + with code.indent(): + code.writeline(f"tmpbuf_out[i] = {res};") + load_args = f"tmpbuf_out.data(), {cexpr_index(size)}" + if output_mask: + load_fn = f"at::vec::VecMask<{cdtype},{n_vec}>::from" + elif n_vec == 1: + load_fn = f"at::vec::Vectorized<{octype}>::loadu" + else: + load_fn = f" at::vec::VectorizedN<{octype}, {n_vec}>::loadu" + code.writeline(f"return {load_fn}({load_args});") + code.writeline("()") + return code + + return inner + + @classmethod + def _initialize_scalarize(cls): + vec_vars = vars(CppVecOverrides) + for name, method in vars(CppOverrides).items(): + if isinstance(method, staticmethod) and name not in vec_vars: + func = cls._scalarize(method.__func__) + func.__name__ = name + setattr(cls, name, staticmethod(func)) + + +CppVecOverrides._initialize_pointwise_overrides("cppvec") +CppVecOverrides._initialize_scalarize() + + +class CppTile2DOverrides(CppVecOverrides): + @staticmethod + def index_expr(expr, dtype): + assert isinstance(V.kernel, CppTile2DKernel) + expr = V.kernel.transform_indexing(expr) + return CppVecOverrides.index_expr(expr, dtype) + + +class CppKernel(Kernel): + """ + Base class for C++ kernel code generation in PyTorch Inductor. + This class is responsible for generating C++ code from the intermediate representation. + + Args: + args: Kernel arguments used for code generation + num_threads: Number of threads for parallel execution + """ + + overrides = CppOverrides # type: ignore[assignment] + sexpr = cexpr + newvar_prefix = "auto " + suffix = ";" + + def __init__(self, args, num_threads): + super().__init__(args) + # Indicate when this kernel is active, for example + # {x0, {24, 26}} -> this kernel is active when x0 >= 24 and x0 < 26 + self.active_ranges: dict[sympy.Expr, tuple[sympy.Expr, ...]] = {} + # Indicate this kernel will be moved under the inner for-loop + # See move_code_under_inner_loop + self.inner_itervars: list[sympy.Symbol] = [] + self.call_ranges: Optional[tuple[sympy.Expr, ...]] = None + self.ranges: list[sympy.Expr] = [] + self.itervars: list[sympy.Symbol] = [] + self.reduction_depth = None + self.reduction_prefix = IndentedBuffer() + # We need this because when we run "reduction" nodes here, we lack + # "loop" information to decide whether we need a scalar init or an array init + # in the reduction prefix. Meanwhile, we have other information like + # reduction types and dtype to generate the reduction prefix. We record the information + # with a callable lambda function, and when we have enough information to finalize + # the reduction prefix, we can invoke the functions here with additional information. + self.reduction_prefix_generators: list[Callable] = [] # type: ignore[type-arg] + self.reduction_suffix = IndentedBuffer() + self.parallel_reduction_prefix = IndentedBuffer() + self.parallel_reduction_suffix = IndentedBuffer() + self.local_reduction_init = IndentedBuffer() + self.local_reduction_stores = IndentedBuffer() + self.is_reduction = False + self.non_parallel_reduction_prefix = IndentedBuffer() + self.non_parallel_reduction_suffix = IndentedBuffer() + self.reduction_cse = CSE(self.newvar_prefix, self.suffix, name_prefix="tmp_acc") + self.welford_helper_cse = CSE( + self.newvar_prefix, self.suffix, name_prefix="welford_helper" + ) + self.cascade_helper_cse = CSE( + self.newvar_prefix, self.suffix, name_prefix="cascade_helper" + ) + self.preloads = IndentedBuffer() + self.poststores = IndentedBuffer() + self.num_threads = num_threads # num_threads the kernel specialized for + self.reduction_omp_dec: dict[tuple[str, str], str] = {} + self.reduction_var_names: list[str] = [] + + def _gen_parallel_reduction_buffers( + self, + acc, + acc_type, + reduction_type, + dtype, + reduction_combine_fn=reduction_combine, + reduction_init_fn=reduction_init, + ): + if config.cpp.dynamic_threads and not self.parallel_reduction_prefix: + self.parallel_reduction_prefix.writeline( + "int max_threads = omp_get_max_threads();" + ) + acc_local = f"{acc}_local" + num_threads = ( + "max_threads" if config.cpp.dynamic_threads else parallel_num_threads() + ) + acc_local_in_array = f"{acc}_arr[tid]" + self.local_reduction_init.writeline( + f"{acc_type} {acc_local} = {reduction_init_fn(reduction_type, dtype)};" + ) + self.parallel_reduction_prefix.splice( + reduction_prefix_array( + acc, + acc_type, + reduction_type, + dtype, + num_threads, + reduction_init_fn, + ) + ) + self.local_reduction_stores.writeline(f"{acc_local_in_array} = {acc_local};") + self.parallel_reduction_suffix.writelines( + [ + f"for (int tid = 0; tid < {num_threads}; tid++)", + "{", + f" {acc} = {reduction_combine_fn(reduction_type, acc, acc_local_in_array, src_dtype=dtype)};", + "}", + ], + ) + + def update_stores_with_parallel_reduction(self): + for var_name in self.reduction_var_names: + replace_acc_name(self.stores, var_name, f"{var_name}_local") + + def gen_body(self, code: Optional[BracesBuffer] = None): + assert code is None + code = BracesBuffer() + with contextlib.ExitStack() as stack: + if hasattr(self, "codegen_inner_loops"): + code.splice(self.preloads) + self.codegen_inner_loops(code) + stack.enter_context(code.indent()) + code.splice(self.loads) + code.splice(self.compute) + code.splice(self.stores) + if hasattr(self, "codegen_inner_loops"): + code.splice(self.poststores) + + if self.inner_itervars: + for idx in self.inner_itervars: + start, end = self.active_ranges[idx] + code = move_code_under_inner_loop(code, idx, f"{idx}_tail", start, end) + return code + + @contextlib.contextmanager + def masked(self, mask): + """Context manager to add an additional mask to loads and stores.""" + prior = self._load_mask + if prior: + mask = ops.and_(mask, prior) + if isinstance(mask, OpsValue): + mask = mask.value + assert isinstance(mask, CppCSEVariable) + # see NOTE [dtype of CppCSEVariable] + # mask's dtype should be bool + mask.dtype = torch.bool + + # pyrefly: ignore [bad-assignment] + self._load_mask = mask + try: + yield mask + finally: + self._load_mask = prior + + def scale_index_with_offset( + self, index: sympy.Expr, scale=1, itervar_idx=-1, offset=0 + ): + var = self.itervars[itervar_idx] + replacement = {var: var * scale + offset} + new_index = sympy_subs(index, replacement) + return new_index + + def index_to_str(self, index: sympy.Expr) -> str: + """ + Convert an index expr to a string that can be used in cpp code. + e.g. a sympy expression "s2" may actually appear as "ks1" in the cpp kernel. + """ + return cexpr(self.rename_indexing(index)) + + def index_indirect_depends_on(self, index: sympy.Expr, itervar: sympy.Symbol): + """ + Check if an index has free symbol CppCSEVariable that depends on `itervar`. + """ + return any( + self.cse.varname_map[s.name].depends_on(itervar) # type: ignore[attr-defined] + for s in index.free_symbols + if s.name in self.cse.varname_map # type: ignore[attr-defined] + and isinstance(self.cse.varname_map[s.name], CppCSEVariable) # type: ignore[attr-defined] + ) + + def index_depends_on(self, index: sympy.Expr, itervar: sympy.Symbol): + return itervar in index.free_symbols or self.index_indirect_depends_on( + index, itervar + ) + + def var_ranges(self): + return dict(zip(self.itervars, self.ranges)) + + def check_bounds( + self, + expr: sympy.Expr, + size: sympy.Expr, + lower: bool, + upper: bool, + ): + if not (lower or upper): + return + + indirect = free_symbol_is_type(expr, SymT.TMP) + if indirect: + # indexing in compute + csevar = ops.index_expr(expr, torch.int64).value + buffer = V.kernel.compute + else: + # indexing in loads + prior_compute = V.kernel.compute + try: + V.kernel.compute = self.loads + csevar = ops.index_expr(expr, torch.int64).value + finally: + V.kernel.compute = prior_compute + buffer = self.loads + + size_str = V.kernel.sexpr(self.rename_indexing(size)) if upper else None + + line = self.indirect_assert( + csevar, "0" if lower else None, size_str, self._load_mask + ) + self.cse.generate(buffer, line, assignment=False) + + def load(self, name: str, index: sympy.Expr): + var = self.args.input(name) + index = self.rename_indexing(index) + line = f"{var}[{cexpr_index(index)}]" + csevar = self.cse.generate(self.loads, line, dtype=V.graph.get_dtype(name)) + csevar.update_on_args("load", (self, name, index), {}) + return csevar + + def store(self, name, index, value, mode=None): + assert "buf" in name + var = self.args.output(name) + index = self.rename_indexing(index) + if mode is None: + line = f"{var}[{cexpr_index(index)}] = {value};" + elif mode == "atomic_add": + if not config.cpp.dynamic_threads and self.num_threads == 1: + line = f"{var}[{cexpr_index(index)}] += {value};" + else: + dtype = V.graph.get_dtype(name) + # mirroring static_cast(...) in load: + value = f"static_cast<{DTYPE_TO_CPP[dtype]}>({value})" + line = f"atomic_add(&{var}[{cexpr_index(index)}], {value});" + else: + raise NotImplementedError(f"store mode={mode}") + self.stores.writeline(DeferredLine(name, line)) + + def device_assert_async(self, cond, msg): + self.compute.writeline( + f'({cond} ? 0 : (throw std::runtime_error("{msg}"), 0));' + ) + + def _gen_reduction_prefix( + self, + acc: Union[CSEVariable, str], + acc_type: str, + rtype: str, + dtype: torch.dtype, + init_fn, + ): + # Generate reduction prefix + # If size is None, we will define and initialize a single reduction variable + # => float tmp_acc0 = 0; + # Otherwise, we will define and initialize a reduction array + # => float tmp_acc0_arr[size]; + # => for (int i = 0; i < size; i++) tmp_acc0_arr[i] = 0; + def inner(size: Optional[int] = None): + if size is None: + return f"{acc_type} {acc} = {init_fn(rtype, dtype)};" + else: + return reduction_prefix_array( + acc, + acc_type, + rtype, + dtype, + size, + init_fn, + ) + + return inner + + def finalize_reduction_prefix(self, size: Optional[int] = None): + for gen_fn in self.reduction_prefix_generators: + self.reduction_prefix.splice(gen_fn(size)) + + def need_use_acc_helper(self, reduction_type, dtype, use_scalar): + # Check if we need accumulate helper for the reduction operation. + # using accumulate helper generates the necessary code to improve precision for + # sum and welford + # Note: using helper has non-negligible impact on performance + + if reduction_type == "welford_reduce": + return True + + # TODO add supports for more data types when needed + if reduction_type == "sum" and dtype == torch.float: + assert self.call_ranges is not None + reduction_size = functools.reduce( + operator.mul, self.call_ranges[self.reduction_depth :] + ) + + # chunk size to balance accuracy and performance + chunk_size = 4096 + + # use acc helper If cannot get size_hint + try: + reduction_size_hint = V.graph.sizevars.size_hint(reduction_size) + except Exception: + return True + + if reduction_size_hint > chunk_size: + # use helper if the reduction size is too large + V.graph.sizevars.check_lt(chunk_size, reduction_size) + return True + else: + V.graph.sizevars.check_leq(reduction_size, chunk_size) + return False + + def _acc_helper_init( + self, + reduction_type, + helper_val, + helper_range, + dtype, + num_threads=None, + use_scalar=False, + ): + num_range_thread = ( + CeilDiv(helper_range, num_threads) if num_threads else helper_range + ) + num_range_thread_expr = cexpr_index(num_range_thread) + assert reduction_type in ["welford_reduce", "sum"] + chunk_size = 4096 + num_chunks = CeilDiv(num_range_thread, chunk_size) + helper_type = ( + "WelfordHelper" + if reduction_type == "welford_reduce" + else "CascadeSumHelper" + ) + if use_scalar: + h_type = DTYPE_TO_CPP[dtype] + else: + h_type = ( + self._get_vec_type(dtype) + if hasattr(self, "_get_vec_type") + else DTYPE_TO_CPP[dtype] + ) + helper_init_line = ( + f"{helper_type}<{h_type}, {chunk_size}> {helper_val}" + f"(" + f"{num_range_thread_expr}" + f");" + ) + if reduction_type == "sum": + return helper_init_line + if isinstance(num_chunks, sympy.Integer) and num_chunks <= 1: + # When the number of chunks <= 1, there is no need to use cascade summation to improve + # reduction accuracy. We can initialize a static WelfordHelper to improve performance. + return f"static {helper_init_line}" + else: + return helper_init_line + + def _use_acc_helper( + self, reduction_type, acc, helper_val, helper_range, dtype, use_scalar=False + ): + num_threads = ( + "max_threads" if config.cpp.dynamic_threads else parallel_num_threads() + ) + self.non_parallel_reduction_prefix.writeline( + self._acc_helper_init( + reduction_type, helper_val, helper_range, dtype, None, use_scalar + ) + ) + self.local_reduction_init.writeline( + self._acc_helper_init( + reduction_type, helper_val, helper_range, dtype, num_threads, use_scalar + ) + ) + result = acc if use_scalar else f"{acc}_vec" + if reduction_type == "welford_reduce": + self.non_parallel_reduction_suffix.writeline( + f"{result} = welford_combine({result}, &{helper_val});" + ) + self.local_reduction_stores.writeline( + f"{result}_local = welford_combine({result}_local, &{helper_val});" + ) + else: + self.non_parallel_reduction_suffix.writeline( + f"{result} = cascade_sum_final(&{helper_val});" + ) + self.local_reduction_stores.writeline( + f"{result}_local = cascade_sum_final(&{helper_val});" + ) + + def reduction(self, dtype, src_dtype, reduction_type, value): + argmax_or_argmin = reduction_type in ("argmax", "argmin") + reduction_key = src_dtype, reduction_type, value + if reduction_key in self.reduction_cse.reduction_cache: + return self.reduction_cse.reduction_cache[reduction_key] + + acc = self.reduction_cse.generate( + self.loads, f"reduction {reduction_key}", write=False + ) + self.reduction_var_names.append(f"{acc}") + self.is_reduction = True + init_dtype = src_dtype if argmax_or_argmin else dtype + acc_type = reduction_acc_type(reduction_type, init_dtype) + self.reduction_prefix_generators.append( + self._gen_reduction_prefix( + acc, acc_type, reduction_type, init_dtype, reduction_init + ) + ) + + if self.need_use_acc_helper(reduction_type, dtype, True): + # use cascade_helper for vec kernel + reduction_size = functools.reduce( + operator.mul, self.ranges[self.reduction_depth :] + ) + # use welford_helper/cascade_helper for vec kernel + if reduction_type == "welford_reduce": + helper_val = self.welford_helper_cse.generate( + self.compute, f"reduction {reduction_key}", write=False + ) + else: + helper_val = self.cascade_helper_cse.generate( + self.compute, f"reduction {reduction_key}", write=False + ) + # rename the helper variable to distinguish it from vectorized version + scalar_helper_val = f"scalar_{helper_val}" + self._use_acc_helper( + reduction_type, + acc, + scalar_helper_val, + reduction_size, + dtype, + use_scalar=True, + ) + self.stores.writeline( + f"{acc} = {reduction_combine(reduction_type, acc, value, scalar_helper_val)};" + ) + else: + assert self.reduction_depth is not None + index = self.itervars[self.reduction_depth] + for i in range(self.reduction_depth + 1, len(self.itervars)): + index = index * self.ranges[i] + self.itervars[i] + self.stores.writeline( + f"{acc} = {reduction_combine(reduction_type, acc, value, index=index)};" + ) + + self._gen_parallel_reduction_buffers(acc, acc_type, reduction_type, init_dtype) + result = reduction_project(reduction_type, acc) + self.reduction_cse.reduction_cache[reduction_key] = result + return result + + def store_reduction(self, name, index, value): + index = self.rename_indexing(index) + var = self.args.output(name) + self.reduction_suffix.writeline( + DeferredLine(name, f"{var}[{cexpr_index(index)}] = {value};") + ) + + def set_ranges(self, lengths, reduction_lengths): + if self.call_ranges: + assert self.call_ranges == tuple(lengths) + tuple(reduction_lengths), ( + f"{self.call_ranges} == {tuple(lengths)} + {tuple(reduction_lengths)}" + ) + assert self.reduction_depth == len(lengths) + else: + self.call_ranges = tuple(lengths) + tuple(reduction_lengths) + self.ranges = [self.rename_indexing(x) for x in self.call_ranges] + self.itervars = [ + sympy_index_symbol_with_prefix(SymT.XBLOCK, n) + for n in range(len(self.ranges)) + ] + # pyrefly: ignore [bad-assignment] + self.reduction_depth = len(lengths) + return ( + self.itervars[: self.reduction_depth], + self.itervars[self.reduction_depth :], + ) + + def size_hint(self): + assert self.call_ranges is not None + return V.graph.sizevars.size_hint( + sympy_product(self.call_ranges), fallback=8192 + ) + + def codegen_loops_impl(self, loop_nest, code, worksharing): + assert isinstance(self, CppKernelProxy) + threads = parallel_num_threads() + assert self.call_ranges is not None + if isinstance(loop_nest.kernel, OuterLoopFusedKernel): + par_depth = loop_nest.kernel.decide_parallel_depth( + loop_nest.max_parallel_depth(), threads + ) + else: + par_depth = self.decide_parallel_depth( + loop_nest.max_parallel_depth(), threads + ) + + is_reduction_loop = ( + loop_nest.loops is not None + and loop_nest.loops[par_depth.start_depth].is_reduction + ) + with contextlib.ExitStack() as stack: + if par_depth.parallel_depth: + if is_reduction_loop: + # need to close the worksharing scope to define reduction vars outside it + worksharing.close() + else: + worksharing.parallel(threads) + loop_nest.mark_parallel(par_depth) + elif threads > 1: + if worksharing.single(): + stack.enter_context(code.indent()) + + def gen_kernel(_loop_nest: LoopNest): + def is_parallel_reduction(): + assert _loop_nest.loops + root = _loop_nest.loops[par_depth.start_depth] + return root.is_reduction and root.parallel + + kernel = _loop_nest.get_kernel() + if isinstance(kernel, OuterLoopFusedKernel): + for _loop_nest in kernel.inner: + gen_loop_nest(_loop_nest) + else: + assert isinstance(kernel, CppKernelProxy) + if _loop_nest.loops is not None and is_parallel_reduction(): + kernel.update_stores_with_parallel_reduction() + with contextlib.ExitStack() as stack: + stack.enter_context(code.indent()) + kernel.gen_body(code) + + def get_reduction_prefix_suffix(kernel, parallel=False, is_suffix=False): + if is_suffix: + suffix = kernel.reduction_suffix + if parallel: + suffix = kernel.parallel_reduction_suffix + suffix + else: + suffix = kernel.non_parallel_reduction_suffix + suffix + return suffix + else: + prefix = kernel.reduction_prefix + if parallel: + prefix = prefix + kernel.parallel_reduction_prefix + else: + prefix = prefix + kernel.non_parallel_reduction_prefix + return prefix + + def gen_loop_with_reduction( + _loop_nest: LoopNest, depth: int = 0, in_reduction=False + ): + kernel = _loop_nest.get_kernel() + assert _loop_nest.loops + loop = _loop_nest.loops[depth] + with contextlib.ExitStack() as stack_outer: + if loop.is_reduction and not in_reduction: + reduction_prefix = get_reduction_prefix_suffix( + kernel, loop.parallel, is_suffix=False + ) + if reduction_prefix: + stack_outer.enter_context(code.indent()) + code.splice(reduction_prefix) + if is_reduction_loop and loop.parallel: + worksharing.parallel(threads) + if kernel.local_reduction_init: + assert kernel.local_reduction_stores + code.splice(kernel.local_reduction_init) + + gen_loop_at(_loop_nest, depth) + + if is_reduction_loop and loop.parallel: + if kernel.local_reduction_stores: + code.splice(kernel.local_reduction_stores) + worksharing.close() + if loop.is_reduction and not in_reduction: + code.splice( + get_reduction_prefix_suffix( + kernel, loop.parallel, is_suffix=True + ) + ) + + def gen_loop_at(_loop_nest: LoopNest, depth: int = 0): + with contextlib.ExitStack() as stack: + assert _loop_nest.loops + loop = _loop_nest.loops[depth] + loop_lines = loop.lines() + if loop_lines is None: + return + code.writelines(loop_lines) + stack.enter_context(code.indent()) + gen_loop_nest(_loop_nest, depth + 1, loop.is_reduction) + + def gen_loop_nest( + _loop_nest: LoopNest, + depth: int = 0, + in_reduction: bool = False, + ): + if _loop_nest.loops is None or depth == len(_loop_nest.loops): # type: ignore[arg-type] + gen_kernel(_loop_nest) + else: + gen_loop_with_reduction(_loop_nest, depth, in_reduction) + + stack.enter_context(code.indent()) + + if ( + isinstance(loop_nest.kernel, OuterLoopFusedKernel) + and isinstance(V.local_buffer_context, LocalBufferContext) + and V.local_buffer_context.local_buffers + ): + # Allocate local buffer + local_buffers = V.local_buffer_context.local_buffers + for local_buffer in local_buffers.values(): + # For dynamic size, rename s to ks + local_buf_size = sympy_product( + [ + self.rename_indexing(size_val) + for size_val in local_buffer.get_layout().size + ] + ) + local_buf_dtype = DTYPE_TO_CPP[local_buffer.get_layout().dtype] + allocate = f"std::make_unique<{local_buf_dtype} []>({cexpr(local_buf_size)})" + local_buffer_name = local_buffer.get_name() + code.splice( + f"std::unique_ptr<{local_buf_dtype} []> buf_{local_buffer_name} = {allocate};" + ) + code.splice( + f"{local_buf_dtype}* {local_buffer_name} = buf_{local_buffer_name}.get();" + ) + gen_loop_nest(loop_nest) + + def codegen_loops(self, code, worksharing): + loop_nest = LoopNest.build(self) + self.codegen_loops_impl(loop_nest, code, worksharing) + + @property + def assert_function(self) -> str: + if V.graph.aot_mode: + return "AOTI_TORCH_CHECK" + else: + return "TORCH_CHECK" + + def decide_parallel_depth(self, max_parallel_depth, threads): + assert self.call_ranges is not None + ranges = self.call_ranges[ + max_parallel_depth.start_depth : ( + max_parallel_depth.start_depth + max_parallel_depth.parallel_depth + ) + ] + seq = self.size_hint() + par = 1 + depth = 0 + for expr in ranges: + hint = V.graph.sizevars.size_hint(expr, fallback=8192) + if par >= 2 * threads or par == threads: + break + if seq // threads < config.cpp.min_chunk_size: + # not enough work + break + depth += 1 + par *= hint + seq /= hint + # if we assume thread number is dynamic, make sure we + # have at least one parallel scope and let OMP runtime + # to manage the serial vs. parallel. + if config.cpp.dynamic_threads and depth == 0 and len(ranges) > 0: + depth = 1 + return ParallelDepth( + parallel_depth=depth, start_depth=max_parallel_depth.start_depth + ) + + @contextlib.contextmanager + def write_to_suffix(self): + prior = (self.loads, self.compute, self.stores, self.cse) + self.loads = IndentedBuffer() + self.compute = IndentedBuffer() + self.stores = IndentedBuffer() + self.cse = self.cse.clone() + yield + self.reduction_suffix.splice(self.loads) + self.reduction_suffix.splice(self.compute) + self.reduction_suffix.splice(self.stores) + (self.loads, self.compute, self.stores, self.cse) = prior + + def create_cse_var(self, *args, **kwargs): + return CppCSEVariable(*args, **kwargs) + + def get_to_dtype_expr(self, src, dtype, src_dtype): + return f"c10::convert<{DTYPE_TO_CPP[dtype]}>({src})" + + def cache_dtype_convert(self, dst, dst_dtype, src, src_dtype): + expr = self.get_to_dtype_expr(src, dst_dtype, src_dtype) + self.cse.put(expr, dst) + + def codegen_conditions( + self, + code: BracesBuffer, + prefix: Optional[str] = None, + var: Optional[sympy.Symbol] = None, + ): + if prefix is None: + prefix = "" + if not self.active_ranges: + return True + conditions = [] + + def gen(start, end, var): + if start == end: + return False + var_id = None + for i, _var in enumerate(self.itervars): + if var == _var: + var_id = i + break + if ( + type(self) is CppKernel + and var_id + and start == 0 + and end == self.ranges[var_id] + ): + end = 1 + # pyrefly: ignore [bad-argument-type] + conditions.append(f"{var} >= {cexpr_index(start)}") + # pyrefly: ignore [bad-argument-type] + conditions.append(f"{var} < {cexpr_index(end)}") + return True + + if var is not None: + assert var in self.active_ranges + start, end = self.active_ranges[var] + if not gen(start, end, var): + return False + else: + for _var, _range in self.active_ranges.items(): + start, end = _range + if not gen(start, end, _var): + return False + joined_conditions = " && ".join(conditions) + if joined_conditions: + code.writeline(f"if({prefix}({joined_conditions}))") + return True + else: + return False + + +class CppVecKernel(CppKernel): + overrides = CppVecOverrides # type: ignore[assignment] + + def __init__( + self, + args, + num_threads, + tiling_factor, + tiling_idx, + tail_size=None, + ): + super().__init__(args, num_threads) + self.vec_isa = cpu_vec_isa.pick_vec_isa() + assert self.vec_isa + assert tiling_factor > 0, "Expect pass in Non-Zero tiling_factor explicitly" + self.tiling_factor = tiling_factor + self.tiling_idx = tiling_idx + self.tail_size = tail_size + self.num_elems = tail_size if tail_size else tiling_factor + + def _try_get_const_stride(self, index: sympy.Expr, itervar: sympy.Symbol): + if self.index_indirect_depends_on(index, itervar): + return None + for indirect_var in ( + self.cse.varname_map[s.name] # type: ignore[attr-defined] + for s in index.free_symbols + if symbol_is_type(s, SymT.TMP) + ): + assert isinstance(indirect_var, CppCSEVariable) + if indirect_var.is_vec: + return None + stride = stride_at_vec_range(index, itervar, self.tiling_factor) + return stride if stride.is_number else None + + def _get_num_vectors(self, dtype: torch.dtype) -> int: + num_vectors = math.ceil( + self.tiling_factor * dtype.itemsize * 8 / self.vec_isa.bit_width() + ) + assert num_vectors >= 1 + return num_vectors + + def _get_raw_num_vectors(self, dtype: torch.dtype) -> float: + # This utility function is used to check if the vector lanes has been + # fully utilized. For example, uint8 will only use 1/4 of the vector lanes. + return self.tiling_factor * dtype.itemsize * 8 / self.vec_isa.bit_width() + + def _get_vec_type(self, dtype: torch.dtype) -> str: + num_vectors = self._get_num_vectors(dtype) + if num_vectors == 1: + return f"at::vec::Vectorized<{DTYPE_TO_CPP[dtype]}>" + else: + return f"at::vec::VectorizedN<{DTYPE_TO_CPP[dtype]},{num_vectors}>" + + def _get_mask_type(self, dtype: torch.dtype = torch.float) -> str: + if dtype == torch.bool: + return "" + num_vectors = self._get_num_vectors(dtype) + return f"at::vec::VecMask<{DTYPE_TO_CPP[dtype]},{num_vectors}>" + + def _get_mask_cast(self, mask: CppCSEVariable, dtype: torch.dtype) -> str: + assert mask.dtype == torch.bool, repr(mask) + num_vectors = self._get_num_vectors(dtype) + return f"{mask}.template cast<{DTYPE_TO_CPP[dtype]},{num_vectors}>()" + + def _get_vec_load_line( + self, + var: str, + index: sympy.Expr, + dtype: torch.dtype, + load_mask: Optional[CppCSEVariable] = None, + ): + """ + Get a load line str that loads a vector from `var` at `index` of type `dtype`. + If `load_mask` is not None, we do a masked load accordingly. + Notes on the `dtype`: + 1. We always load `self.tiling_factor` number of elements regardless of the `dtype`. + It means we load half of the vector lanes for 16-bit data types and quarter of the + vector lanes for 8-bit data types. + 2. `torch.bool` and `torch.uint8` could mean masks and we load them as float mask vectors. + """ + cpp_type = DTYPE_TO_CPP[dtype] + num_vectors = self._get_num_vectors(dtype) + load_mask_str = None + if load_mask: + if not load_mask.is_vec: + # TODO: avoid hard-code torch.float + load_mask_str = f"{self._get_mask_type(torch.float)}::from({load_mask})" + else: + load_mask_str = f"{self._get_mask_cast(load_mask, torch.float)}" + loadbuf = f"{var} + {cexpr_index(index)}" if index != 0 else var + if dtype == torch.bool: + # TODO: should we consider load mask here? + line = f"{self._get_mask_type()}::from({loadbuf}, {cexpr_index(self.num_elems)})" + else: + line = ( + f"{load_mask_str}.template loadu<{cpp_type},{num_vectors}>({loadbuf})" + if load_mask_str + else f"{self._get_vec_type(dtype)}::loadu({loadbuf}, {cexpr_index(self.num_elems)})" + ) + return line + + def _load_or_store_non_contiguous( + self, + var: Optional[str], + index: sympy.Expr, + dtype: torch.dtype, + buffer: Optional[IndentedBuffer] = None, + store_value: Optional[Union[str, CppCSEVariable]] = None, + accu_store: bool = False, + ) -> Optional[CppCSEVariable]: + """ + Load or store a vector in a non-contiguous way. The vector is initialized from an array that is + filled in an inner loop over the tiling factor. + :param var: buffer to load from or store to, i.e. `var[transformed(index)]`. If None, we load the index + as index expression, i.e. `transformed(index)`. + :param index: index into the `var` or the index expression by its own if `var` is None. + The `index` could contain indirect indexing or the tiling itervar. When used in + the inner loop, the index is transformed as follows: + 1. the index is linearized along the tiling dim. + 2. the indirect indexing vector variables are transformed into arrays over the tiling dim. + :param dtype: data type of `var` or `index` if `var` is None. + :param buffer: the code buffer to write the generated code to. If None, we write to `self.loads`. + :param store_value: the value to store. If None, we load the vector. + :param accu_store: whether accumulate the store_value to store_ptr. If True, a store_value should be provided + :return: a CppCSEVariable that represents the loaded vector or None if it is a store. + """ + assert not store_value or var is not None, "store var must be provided" + if accu_store: + assert store_value + if buffer is None: + buffer = self.loads + + def get_result_size(dtype: torch.dtype) -> int: + if dtype.itemsize < 4: + return self.num_elems * (4 // dtype.itemsize) + else: + return self.num_elems + + def get_tiling_size(dtype: torch.dtype) -> int: + if dtype.itemsize < 4: + return self.tiling_factor * (4 // dtype.itemsize) + else: + return self.tiling_factor + + def vec_to_array(vec_var: CppCSEVariable) -> CppCSEVariable: + assert vec_var.is_vec + code = BracesBuffer() + code.writeline("[&]") + with code.indent(): + vec_dtype = vec_var.dtype + assert vec_dtype is not None + if vec_dtype == torch.bool: + vec_dtype = torch.float + result_size = get_result_size(vec_dtype) + tiling_size = get_tiling_size(vec_dtype) + code.writeline( + f"__at_align__ std::array<{DTYPE_TO_CPP[vec_dtype]}, {tiling_size}> tmpbuf;" + ) + line = f"{vec_var}.store(tmpbuf.data(), {cexpr_index(result_size)});" + code.writeline(line) + code.writeline("return tmpbuf;") + code.writeline("()") + csevar = self.cse.generate(buffer, code) + assert isinstance(csevar, CppCSEVariable) + return csevar + + code = BracesBuffer() + code.writeline("[&]") + with code.indent(): + result_size = get_result_size(dtype) + tiling_size = get_tiling_size(dtype) + result_declare = ( + f"__at_align__ std::array<{DTYPE_TO_CPP[dtype]}, {tiling_size}> tmpbuf;" + ) + code.writeline(result_declare) + if store_value: + code.writeline( + f"{store_value}.store(tmpbuf.data(), {cexpr_index(result_size)});" + ) + itervar_inner = sympy_index_symbol( + f"{self.itervars[self.tiling_idx]}_inner" + ) + replacements = {} + for indirect_var in ( + self.cse.varname_map[s.name] # type: ignore[attr-defined] + for s in index.free_symbols + if symbol_is_type(s, SymT.TMP) + ): + assert isinstance(indirect_var, CppCSEVariable) + if indirect_var.is_vec: + array_var = vec_to_array(indirect_var) + replacements[indirect_var] = f"{array_var}[{itervar_inner}]" + index = self.scale_index_with_offset( + index, itervar_idx=self.tiling_idx, offset=itervar_inner + ) + load_mask = None + if self._load_mask is not None: + assert not store_value, "unexpected store with load mask" + assert isinstance(self._load_mask, CppCSEVariable), self._load_mask + if self._load_mask.is_vec: + load_mask = f"{self._load_mask}.is_masked({itervar_inner})" + else: + load_mask = f"{self._load_mask} != 0" + if cpp_builder.is_gcc(): + code.writeline(f"#pragma GCC unroll {self.tiling_factor}") + else: + code.writeline(f"#pragma unroll {self.tiling_factor}") + code.writeline( + f"for (long {itervar_inner} = 0; " + + f"{itervar_inner} < {cexpr_index(self.num_elems)}; " + + f"{itervar_inner}++)" + ) + with code.indent(), contextlib.ExitStack() as stack: + index_c = cexpr_index(index) + for indirect_var in replacements: + index_c = re.sub( + r"\b" + f"{indirect_var}" + r"\b", + replacements[indirect_var], + index_c, + ) + rhs = f"{var}[{index_c}]" if var is not None else f"{index_c}" + if load_mask: + code.writeline(f"if ({load_mask})") + stack.enter_context(code.indent()) + if store_value: + conjunction = "+=" if accu_store else "=" + code.writeline(f"{rhs} {conjunction} tmpbuf[{itervar_inner}];") + else: + code.writeline(f"tmpbuf[{itervar_inner}] = {rhs};") + if not store_value: + load_line = self._get_vec_load_line("tmpbuf.data()", 0, dtype) # type: ignore[arg-type] + code.writeline(f"return {load_line};") + code.writeline("()") + if store_value: + code.writeline(";") + buffer.splice(code) + return None + else: + csevar = self.cse.generate(buffer, code, dtype=dtype) + assert isinstance(csevar, CppCSEVariable) + csevar.is_vec = True + return csevar + + def load(self, name: str, index: sympy.Expr): + var = self.args.input(name) + index = self.rename_indexing(index) + dtype = V.graph.get_dtype(name) + tiling_var = self.itervars[self.tiling_idx] + stride = self._try_get_const_stride(index, tiling_var) + if stride == 0: + # load scalar and lazily broadcast it on demand + return super().load(name, index) + elif stride == 1: + # load contiguously + line = self._get_vec_load_line(var, index, dtype, self._load_mask) # type: ignore[arg-type] + csevar = self.cse.generate(self.loads, line, dtype=dtype) # type: ignore[assignment] + else: + csevar = self._load_or_store_non_contiguous(var, index, dtype) # type: ignore[assignment] + assert isinstance(csevar, CppCSEVariable) + csevar.update_on_args("load", (self, name, index), {}) + csevar.is_vec = True + return csevar + + def _get_store_line( + self, + value: Union[str, CppCSEVariable], + var: str, + index: sympy.Expr, + dtype: torch.dtype, + accu_store: bool = False, + ): + """ + Get a store line buffer that stores `value` into `var` at `index` of `dtype`. It handles + both contiguous and non-contiguous store cases. + :param value: Vectorized type templaterized on `dtype`. + :param var: buffer to store into. + :index: index into the `var`. + """ + # when value's type is str (e.g., welford reduction), caller should make sure + # it is a vector + assert isinstance(value, str) or ( + isinstance(value, CppCSEVariable) and value.is_vec + ), value + tiling_var = self.itervars[self.tiling_idx] + var_expr = f"{var} + {cexpr_index(index)}" + stride = self._try_get_const_stride(index, tiling_var) + code = IndentedBuffer() + if stride == 1: + if accu_store: + load = ( + f"{self._get_vec_type(dtype)}::loadu({var_expr})" + if dtype == torch.float and self.tail_size is None + else f"{self._get_vec_type(dtype)}::loadu({var_expr}, {cexpr_index(self.num_elems)})" + ) + value = f"({value} + {load})" + if dtype == torch.float and self.tail_size is None: + code.writeline(f"{value}.store({var_expr});") + else: + code.writeline( + f"{value}.store({var_expr}, {cexpr_index(self.num_elems)});" + ) + else: + self._load_or_store_non_contiguous( + var, index, dtype, buffer=code, store_value=value, accu_store=accu_store + ) + return code + + def store(self, name, index, value, mode=None): + assert "buf" in name + assert isinstance(value, CppCSEVariable), value + if not value.is_vec: + # this happens when we store a scalar into a vectorized buffer like "fill" + value = self.broadcast(value) + var = self.args.output(name) + index = self.rename_indexing(index) + dtype = V.graph.get_dtype(name) + if mode is None: + code = self._get_store_line(value, var, index, dtype) + self.stores.splice(code.map(lambda x: DeferredLine(name, x))) + elif mode == "atomic_add": + if not config.cpp.dynamic_threads and self.num_threads == 1: + code = self._get_store_line( + f"{value}", + var, + index, + dtype, + accu_store=True, + ) + self.stores.splice(code.map(lambda x: DeferredLine(name, x))) + else: + n_src = self._get_num_vectors(dtype) + n_idx = self._get_num_vectors(torch.int64) + cdtype = DTYPE_TO_CPP[dtype] + index = ops.index_expr(index, torch.int64).value + assert isinstance(index, CppCSEVariable) and index.is_vec + if self.tail_size: + line = f"atomic_add_vec<{cdtype}, {n_idx}, {n_src}>({var}, {index}, {value}, {cexpr_index(self.tail_size)});" + else: + line = f"atomic_add_vec<{cdtype}, {n_idx}, {n_src}>({var}, {index}, {value});" + self.stores.writeline(DeferredLine(name, line)) + else: + raise NotImplementedError(f"store mode={mode}") + + def reduction(self, dtype, src_dtype, reduction_type, value): + """ + Perform vectorized reduction operation. + + This method handles vectorized reduction for different reduction types. + It manages special cases for low-precision floating point types and + employs precision improvement techniques for certain reduction operations. + + Args: + dtype: The output data type for the reduction result + src_dtype: The source data type of the input value + reduction_type: Type of reduction operation (sum, min, max, etc.) + value: The input value to reduce + + Returns: + The result of the reduction operation + """ + # Note: For argmax and argmin on bool type, we always convert bool to float. + # Fix issue: https://github.com/pytorch/pytorch/issues/143568 + assert reduction_type in VECTORIZABLE_RTYPES + argmax_or_argmin = reduction_type in ("argmax", "argmin") + horizontal_reduction = self.tiling_idx >= self.reduction_depth + init_dtype = src_dtype if argmax_or_argmin else dtype + assert isinstance(value, CppCSEVariable), value + + if not value.is_vec: + value = self.broadcast(value) + + reduction_key = src_dtype, reduction_type, value + if reduction_key in self.reduction_cse.reduction_cache: + return self.reduction_cse.reduction_cache[reduction_key] + + vec_ns = "at::vec" + vec = f"{vec_ns}::Vectorized<{DTYPE_TO_CPP[dtype]}>" + acc_type = reduction_acc_type(reduction_type, init_dtype) + acc_type_vec = self.reduction_acc_type_vec(reduction_type, init_dtype) + + acc = self.reduction_cse.generate( + self.loads, f"reduction {reduction_key}", write=False + ) + assert isinstance(acc, CppCSEVariable) + acc_vec = f"{acc}_vec" + masked_acc = f"masked_{acc}" + masked_acc_vec = f"masked_{acc_vec}" + self.reduction_var_names += [f"{acc}", acc_vec, masked_acc_vec] + self.is_reduction = True + self.reduction_prefix_generators.append( + self._gen_reduction_prefix( + acc, acc_type, reduction_type, init_dtype, reduction_init + ) + ) + self.reduction_prefix_generators.append( + self._gen_reduction_prefix( + acc_vec, + acc_type_vec, + reduction_type, + init_dtype, + self.reduction_init_vec, + ) + ) + + use_acc_helper = self.need_use_acc_helper(reduction_type, dtype, False) + if use_acc_helper: + # use masked acc_vec for tail vec kernel + self.reduction_prefix_generators.append( + self._gen_reduction_prefix( + masked_acc_vec, + acc_type_vec, + reduction_type, + dtype, + self.reduction_init_vec, + ) + ) + + # use welford_helper/cascade_helper for vec kernel + assert self.reduction_depth is not None + reduction_size = functools.reduce( + operator.mul, self.ranges[self.reduction_depth :] + ) + if reduction_type == "welford_reduce": + helper_val = self.welford_helper_cse.generate( + self.compute, f"reduction {reduction_key}", write=False + ) + else: + helper_val = self.cascade_helper_cse.generate( + self.compute, f"reduction {reduction_key}", write=False + ) + masked_helper_val = f"masked_{helper_val}" + helper_vec_range = ( + ( + FloorDiv(reduction_size, self.ranges[self.tiling_idx]) + * FloorDiv(self.ranges[self.tiling_idx], self.tiling_factor) + if self.tiling_idx >= self.reduction_depth + else reduction_size + ) + if FloorDiv(self.ranges[self.tiling_idx], self.tiling_factor) + else sympy.Integer(0) + ) + masked_helper_vec_range = ( + ( + FloorDiv(reduction_size, self.ranges[self.tiling_idx]) + if self.tiling_idx >= self.reduction_depth + else reduction_size + ) + if self.ranges[self.tiling_idx] % self.tiling_factor + else sympy.Integer(0) + ) + # scalar helper for scalar welford_reduce/sum is also needed when vec kernel is included + scalar_helper_val = f"scalar_{helper_val}" + self._use_acc_helper( + reduction_type, + acc, + scalar_helper_val, + reduction_size, + dtype, + use_scalar=True, + ) + self._use_acc_helper( + reduction_type, acc, helper_val, helper_vec_range, dtype + ) + self._use_acc_helper( + reduction_type, + masked_acc, + masked_helper_val, + masked_helper_vec_range, + dtype, + ) + + # use masked acc_vec for tail vec kernel + acc_vec_ = masked_acc_vec if self.tail_size else acc_vec + helper_val_ = masked_helper_val if self.tail_size else helper_val + if reduction_type == "sum": + self.stores.writeline( + f"{acc_vec_} = {self.reduction_combine_vec(reduction_type, acc_vec_, value, helper_val_)};" + ) + else: + self.stores.writeline( + f"{acc_vec_} = {self.reduction_combine_vec(reduction_type, acc_vec_, value, helper_val_)};" + ) + else: + assert self.reduction_depth is not None + index = self.itervars[self.reduction_depth] + for i in range(self.reduction_depth + 1, len(self.itervars)): + index = index * self.ranges[i] + self.itervars[i] + kwargs = { + "next_value": value, + "index": index, + "horizontal_reduction": horizontal_reduction, + "src_dtype": src_dtype, + } + self.stores.writeline( + f"{acc_vec} = {self.reduction_combine_vec(reduction_type, acc_vec, **kwargs)};" + ) + self._gen_parallel_reduction_buffers( + acc_vec, + acc_type_vec, + reduction_type, + init_dtype, + reduction_combine_fn=self.reduction_combine_vec, + reduction_init_fn=self.reduction_init_vec, + ) + self._gen_parallel_reduction_buffers( + acc, + acc_type, + reduction_type, + init_dtype, + reduction_combine_fn=reduction_combine, + reduction_init_fn=reduction_init, + ) + if use_acc_helper: + # use masked acc_vec for tail vec kernel + self._gen_parallel_reduction_buffers( + masked_acc_vec, + acc_type_vec, + reduction_type, + dtype, + reduction_combine_fn=self.reduction_combine_vec, + reduction_init_fn=self.reduction_init_vec, + ) + tmpvar: Union[str, CSEVariable] + is_bool = dtype == torch.bool + if horizontal_reduction: + # Horizontal reduction + if is_welford_reduction(reduction_type): + assert self._get_num_vectors(dtype) in [ + 1, + 2, + ], "Welford reduction does not support VectorizedN (N>2)" + next_value = f"welford_vec_reduce_all({acc_vec})" + masked_next_value = f"welford_vec_reduce_all({masked_acc_vec})" + self.reduction_suffix.writeline( + f"{acc} = {reduction_combine(reduction_type, acc, masked_next_value)};" + ) + elif argmax_or_argmin: + next_value = f"{reduction_type}_vec_reduce_all({acc_vec})" + elif is_bool: + if reduction_type in ( + "any", + "sum", + "max", + ): + next_value = f"!{acc_vec}.all_zero()" + else: + assert reduction_type == "min" + next_value = f"{acc_vec}.all_masked()" + else: + reduce_all_body = ( + "{ return " + + self.reduction_combine_vec(reduction_type, "x", "y") + + "; }" + ) + is_bool = dtype == torch.bool + # we are using at::vec::VecMask for bool + vec_dtype = torch.float if is_bool else dtype + vec = f"at::vec::Vectorized<{DTYPE_TO_CPP[vec_dtype]}>" + vec_reduce_all_func = f"at::vec::vec_reduce_all<{DTYPE_TO_CPP[vec_dtype]}, {self._get_num_vectors(vec_dtype)}>" + result_vec = f"{acc_vec}" + if use_acc_helper: + assert reduction_type == "sum" + result_vec = f"{acc_vec} + {masked_acc_vec}" + next_value = f"{vec_reduce_all_func}([]({vec}& x, {vec}& y) {reduce_all_body}, {result_vec})" + + self.reduction_suffix.writeline( + f"{acc} = {reduction_combine(reduction_type, acc, next_value, src_dtype=src_dtype)};" + ) + tmpvar = acc + else: + tmpvar = acc_vec + if is_welford_reduction(reduction_type): + masked_tmpvar = f"masked_{tmpvar}" + self.reduction_suffix.writeline( + f"{tmpvar} = {reduction_combine(reduction_type, tmpvar, masked_tmpvar)};" + ) + elif use_acc_helper: + assert reduction_type == "sum" + masked_tmpvar = f"masked_{tmpvar}" + self.reduction_suffix.writeline( + f"{tmpvar} = {tmpvar} + {masked_tmpvar};" + ) + + result = reduction_project(reduction_type, tmpvar) + self.reduction_cse.reduction_cache[reduction_key] = result + return result + + def store_reduction(self, name, index, value): + index = self.rename_indexing(index) + var = self.args.output(name) + out_dtype = V.graph.get_dtype(name) + if out_dtype.is_floating_point and out_dtype != torch.double: + dtype = torch.float + else: + dtype = out_dtype + out_num_vectors = V.kernel._get_num_vectors(out_dtype) + src_num_vectors = V.kernel._get_num_vectors(dtype) + code = IndentedBuffer() + if self.tiling_idx >= self.reduction_depth: + # Horizontal reduction + code.writeline( + f"{var}[{cexpr_index(index)}] = static_cast<{DTYPE_TO_CPP[out_dtype]}>({value});" + ) + else: + # Vertical reduction + if out_dtype != dtype: + converted_value = ( + f"{DTYPE_TO_CPP[out_dtype].replace('::', '_')}_{value}" + ) + if out_dtype == torch.bool: + convert = f"{value}.template cast()" + else: + if src_num_vectors == out_num_vectors == 1: + convert = ( + f"at::vec::convert<{DTYPE_TO_CPP[out_dtype]}>({value})" + ) + else: + convert = ( + f"at::vec::convert<{DTYPE_TO_CPP[out_dtype]}," + f"{out_num_vectors},{DTYPE_TO_CPP[dtype]},{src_num_vectors}>({value})" + ) + code.writeline(f"auto {converted_value} = {convert};") + value = converted_value + code.splice(self._get_store_line(value, var, index, out_dtype)) + self.reduction_suffix.splice(code.map(lambda x: DeferredLine(name, x))) + + def broadcast(self, scalar_var: CppCSEVariable) -> CppCSEVariable: + assert not scalar_var.is_vec + if scalar_var.dtype == torch.bool: + vec_var = self.cse.generate( + self.compute, f"{self._get_mask_type()}::from({scalar_var.name})" + ) + else: + assert scalar_var.dtype is not None + vec_var = self.cse.generate( + self.compute, + f"{self._get_vec_type(scalar_var.dtype)}({scalar_var.name})", + ) + assert isinstance(vec_var, CppCSEVariable) + vec_var.dtype = scalar_var.dtype + vec_var.dependent_itervars = scalar_var.dependent_itervars + vec_var.is_vec = True + return vec_var + + def arange(self, index: CppCSEVariable, stride: sympy.Symbol) -> CppCSEVariable: + assert not index.is_vec + assert index.dtype is not None + csevar = self.cse.generate( + self.compute, + f"{self._get_vec_type(index.dtype)}::arange({index}, {stride})", + ) + assert isinstance(csevar, CppCSEVariable) + csevar.dtype = index.dtype + csevar.is_vec = True + return csevar + + def reduction_init_vec(self, reduction_type, dtype): + scalar_type = DTYPE_TO_COMPUTATION_DTYPE[dtype] + vec_type = self._get_vec_type(scalar_type) + + if is_welford_reduction(reduction_type): + return f"Welford<{vec_type}>()" + + if reduction_type in ("argmin", "argmax"): + cdtype = DTYPE_TO_CPP[scalar_type] + acc_type = self.reduction_acc_type_vec(reduction_type, dtype) + if reduction_type == "argmin": + val = ( + f"std::numeric_limits<{cdtype}>::infinity()" + if is_float_dtype(dtype) + else f"std::numeric_limits<{cdtype}>::max()" + ) + else: + val = ( + f"-std::numeric_limits<{cdtype}>::infinity()" + if is_float_dtype(dtype) + else f"std::numeric_limits<{cdtype}>::min()" + ) + return f"{acc_type}({val})" + + if reduction_type == "any": + return f"{self._get_mask_type()}::from(0)" + + scalar_init = reduction_init(reduction_type, dtype) + vec_init = f"{vec_type}({scalar_init})" + if dtype == torch.bool: + assert reduction_type in ("min", "max", "sum") + return f"{self._get_mask_type()}::from({scalar_init})" + return vec_init + + def reduction_acc_type_vec(self, reduction_type, dtype): + scalar_type = DTYPE_TO_COMPUTATION_DTYPE[dtype] + vec_type = self._get_vec_type(scalar_type) + if is_welford_reduction(reduction_type): + return f"Welford<{vec_type}>" + if reduction_type in ("argmin", "argmax"): + n_src = self._get_num_vectors(scalar_type) + n_idx = self._get_num_vectors(torch.int64) + if dtype == torch.bool: + return f"IndexValueVec<{DTYPE_TO_CPP[torch.float]}, {n_src}, {n_idx}>" + return f"IndexValueVec<{DTYPE_TO_CPP[scalar_type]}, {n_src}, {n_idx}>" + if dtype == torch.bool: + assert reduction_type in ("min", "max", "any", "sum") + return f"{self._get_mask_type()}" + return vec_type + + def reduction_combine_vec( + self, + reduction_type, + var, + next_value, + helper_val=None, + index: Optional[sympy.Symbol] = None, + horizontal_reduction: Optional[bool] = None, + src_dtype: Optional[torch.dtype] = torch.float32, + ): + is_bool = src_dtype == torch.bool + if reduction_type == "max": + if self.tail_size: + return f"max_masked_reduce({var}, {next_value}, {cexpr_index(self.tail_size)})" + else: + return ( + f"{var} | {next_value}" + if is_bool + else f"at::vec::maximum({var}, {next_value})" + ) + elif reduction_type == "min": + if self.tail_size: + return f"min_masked_reduce({var}, {next_value}, {cexpr_index(self.tail_size)})" + else: + return ( + f"{var} & {next_value}" + if is_bool + else f"at::vec::minimum({var}, {next_value})" + ) + elif reduction_type == "sum": + if helper_val: + if self.tail_size: + return f"cascade_sum_combine({next_value}, {cexpr_index(self.tail_size)}, &{helper_val})" + else: + return f"cascade_sum_combine({next_value}, &{helper_val})" + else: + if self.tail_size: + return f"sum_masked_reduce({var}, {next_value}, {cexpr_index(self.tail_size)})" + else: + conjunction = "|" if is_bool else "+" + return f"{var} {conjunction} {next_value}" + elif reduction_type == "prod": + if self.tail_size: + return f"prod_masked_reduce({var}, {next_value}, {cexpr_index(self.tail_size)})" + else: + return f"{var} * {next_value}" + elif reduction_type == "xor_sum": + if self.tail_size: + return f"xor_sum_masked_reduce({var}, {next_value}, {cexpr_index(self.tail_size)})" + else: + return f"{var} ^ {next_value}" + elif reduction_type == "welford_reduce": + if helper_val: + if self.tail_size: + return f"welford_combine({var}, {next_value}, {cexpr_index(self.tail_size)}, &{helper_val})" + else: + return f"welford_combine({var}, {next_value}, &{helper_val})" + else: + if self.tail_size: + return f"welford_combine({var}, {next_value}, {cexpr_index(self.tail_size)})" + else: + return f"welford_combine({var}, {next_value})" + elif reduction_type == "welford_combine": + if isinstance(next_value, tuple): + # When reading a value from Inductor IR we have a tuple of variable names + mean, m2, weight = next_value + else: + # When combining intermediate accumulators we have a Welford struct + mean, m2, weight = reduction_project(reduction_type, next_value) + if self.tail_size: + return f"welford_combine({var}, {{{mean}, {m2}, {weight}}}, {cexpr_index(self.tail_size)})" + else: + return f"welford_combine({var}, {{{mean}, {m2}, {weight}}})" + elif reduction_type in ("argmin", "argmax"): + assert src_dtype is not None + cdtype = DTYPE_TO_CPP[src_dtype] + if src_dtype == torch.bool: + cdtype = DTYPE_TO_CPP[torch.float] + n_src = self._get_num_vectors(src_dtype) + n_idx = self._get_num_vectors(torch.int64) + t_extra = "" + arg_extra = "" + if index is not None: + assert horizontal_reduction is not None + t_extra = f", {str(horizontal_reduction).lower()}" + arg_extra = f", {index}" + if self.tail_size: + return ( + f"{reduction_type}_combine_vec<{cdtype}, {n_src}, {n_idx}{t_extra}>" + f"({var}, {next_value}{arg_extra}, {cexpr_index(self.tail_size)})" + ) + else: + return f"{reduction_type}_combine_vec<{cdtype}, {n_src}, {n_idx}{t_extra}>({var}, {next_value}{arg_extra})" + elif reduction_type == "any": + if isinstance(next_value, CppCSEVariable): + assert next_value.dtype == torch.bool + (next_value,) = unify_mask_base_type(V.kernel.compute, (next_value,)) + if self.tail_size: + return f"any_masked_reduce({var}, {next_value}, {cexpr_index(self.tail_size)})" + else: + return f"{var} | {next_value}" + else: + raise NotImplementedError + + def indirect_assert(self, var, lower, upper, mask=None): + assert isinstance(var, CppCSEVariable) + assert var.dtype is not None + if not var.is_vec: + if isinstance(mask, CppCSEVariable) and mask.is_vec: + mask = f"({mask}).all_masked()" + return super().indirect_assert(var, lower, upper, mask) + lower_scalar = lower + upper_scalar = upper + if lower: + lower = f"{self._get_vec_type(var.dtype)}({lower})" + if upper: + upper = f"{self._get_vec_type(var.dtype)}({upper})" + if lower and upper: + cond = f"({lower} <= {var}) & ({var} < {upper})" + cond_print = f"{lower_scalar} <= {var} < {upper_scalar}" + elif lower: + cond = f"{lower} <= {var}" + cond_print = f"{lower_scalar} <= {var}" + else: + assert upper + cond = f"{var} < {upper}" + cond_print = f"{var} < {upper_scalar}" + cond = f"{self._get_mask_type(var.dtype)}({cond})" + if mask: + if not mask.is_vec: + mask = f"{self._get_mask_type(var.dtype)}({mask})" + # We need not check when the mask is False + cond = f"({cond}) | ~({mask})" + if self.tail_size: + cond = ( + f"{self._get_mask_type(var.dtype)}::set({self._get_mask_type(var.dtype)}::from(1)" + f", ({cond}), {cexpr_index(self.tail_size)})" + ) + cond = f"({cond}).all_masked()" + return f'{self.assert_function}({cond}, "index out of bounds: {cond_print}")' + + def get_to_dtype_expr(self, src, dtype, src_dtype): + assert isinstance(src, CppCSEVariable) + if not src.is_vec: + return super().get_to_dtype_expr(src, dtype, src_dtype) + src_cpp_type = DTYPE_TO_CPP[src_dtype] + src_num_vectors = self._get_num_vectors(src_dtype) + dst_cpp_type = DTYPE_TO_CPP[dtype] + dst_num_vectors = self._get_num_vectors(dtype) + expr = f"({src})" + if src_dtype != torch.bool and dtype == torch.bool: + expr = f"{self._get_mask_type(src_dtype)}::from<{src_cpp_type},{src_num_vectors}>({src})" + elif src_dtype == torch.bool and dtype != torch.bool: + expr = f"{src}.to<{dst_cpp_type},{dst_num_vectors}>()" + elif src_dtype != dtype: + if src_num_vectors == dst_num_vectors == 1: + expr = f"at::vec::convert<{dst_cpp_type}>({src})" + else: + expr = f"at::vec::convert<{dst_cpp_type},{dst_num_vectors},{src_cpp_type},{src_num_vectors}>({src})" + return expr + + +class CppTile2DKernel(CppVecKernel): + """ + A vector kernel that handles the 2d tiles with the tile size defined in `tiling_factor` on + the inner-most loop level and one of the outer loop level (`outer_tiling_idx`). When the data + tile is accessed in a contiguous way from the outer loop axis, a transposition is applied on the + tile to make the access contiguous from the inner-most loop axis. Then, the same vectorization + logic from its parent `CppVecKernel` is leveraged for load/store/compute. The transposed tile load + and store are generated into kernel.preloads and kernel.poststores buffers. + + The loop structure looks like below: + for ... + for i_outer ... + for ... + for inner_most ... + // generated by CppTile2DKernel + float tmp0[16*16]; at::vec::transpose_mxn<...>(tmp0, in_ptr0 + ..., ...); // into kernel.preloads + float tmp1[16*16]; // into kernel.preloads + for i_inner ... { // the kernel inner loop + vectorized loads/compute/stores (e.g., load tmp0, store tmp1) // into kernel.loads/compute/stores + } + at::vec::transpose_mxn(out_ptr0 + ..., tmp1, ...) // into kernel.poststores + for inner_most ... (tail) + // generated by CppVecKernel + ... + for i_outer ... (tail) + for ... + for ... + // generated by CppKernel + ... + """ + + overrides = CppTile2DOverrides # type: ignore[assignment] + + def __init__( + self, + args, + num_threads, + tiling_factor, + tiling_indices, + inner_tail_size=None, + outer_tail_size=None, + ): + super().__init__( + args, + num_threads, + tiling_factor, + tiling_indices[1], + inner_tail_size, + ) + self.tiling_indices = tiling_indices + self.inner_tail_size = inner_tail_size + self.outer_tail_size = outer_tail_size + self.inner_num_elems = inner_tail_size if inner_tail_size else tiling_factor + self.outer_num_elems = outer_tail_size if outer_tail_size else tiling_factor + self.inner_is_tiling_idx = True + + def inner_itervar(self): + return sympy_index_symbol(f"{self.itervars[self.outer_idx]}_inner") + + def need_vec_transpose(self, index): + outer_var = self.itervars[self.outer_idx] + inner_var = self.itervars[self.tiling_idx] + outer_stride = stride_at_vec_range(index, outer_var, self.tiling_factor) + inner_stride = stride_at_vec_range(index, inner_var, self.tiling_factor) + return ( + self._load_mask is None # TODO: support transposition with mask + and outer_stride == 1 + and index.has(inner_var) + and not inner_stride.has(inner_var) + and not inner_stride.has(outer_var) + ) + + def gen_transposed_tile_load_store( + self, name, var, index, is_store, store_mode=None + ): + # transposed tile load/store outside the kernel inner loop + dtype = V.graph.get_dtype(name) + factor = self.tiling_factor + src = f"{var} + {cexpr_index(index)}" + dst = "__place_holder__" + ld_src = f"{cexpr_index(stride_at_vec_range(index, self.itervars[self.tiling_idx], self.tiling_factor))}" + ld_dst = f"{cexpr_index(self.num_elems)}" + if is_store: + src, dst = dst, src + ld_src, ld_dst = ld_dst, ld_src + + need_define = True + if self.inner_is_tiling_idx ^ is_store: + M, N = self.inner_num_elems, self.outer_num_elems + else: + M, N = ( + self.outer_num_elems, + self.inner_num_elems, + ) + atomic_add = "true" if (is_store and (store_mode == "atomic_add")) else "false" + if (isinstance(M, sympy.Expr) and not M.is_number) or ( + isinstance(N, sympy.Expr) and not N.is_number + ): + load_or_store = ( + f"transpose_mxn<{DTYPE_TO_CPP[dtype]},{atomic_add}>" + f"({src}, {ld_src}, {dst}, {ld_dst}, {cexpr_index(M)}, {cexpr_index(N)});" + ) + else: + load_or_store = ( + f"transpose_mxn<{DTYPE_TO_CPP[dtype]},{cexpr_index(M)},{cexpr_index(N)},{atomic_add}>" + f"({src}, {ld_src}, {dst}, {ld_dst});" + ) + if is_store: + tile_var = self.cse.newvar() + elif not self.cse.contains(load_or_store): + tile_var = self.cse.generate(self.preloads, load_or_store, write=False) + else: + need_define = False + tile_var = self.cse.get(load_or_store) + + if need_define: + cpp_dtype = DTYPE_TO_CPP[dtype] + # tiling_factor might be smaller than the alignment of cpp_dtype, such as + # with a vector that only holds 4 elements due to NEON 128-bit vectors and + # cpp_dtype being a 64-bit integer. + alignas = f"alignas(std::max(std::size_t({factor}), alignof({cpp_dtype})))" + define_line = f"{alignas} {cpp_dtype} {tile_var}[{factor}*{factor}];" + self.preloads.writeline(define_line) + + load_or_store = load_or_store.replace("__place_holder__", str(tile_var)) + if is_store: + self.poststores.writeline(DeferredLine(name, load_or_store)) + else: + self.preloads.writeline(load_or_store) + + return tile_var + + def load(self, name: str, index: sympy.Expr): + var = self.args.input(name) + index = self.rename_indexing(index) + + inner = self.inner_itervar() + if self.need_vec_transpose(index): + tile_var = self.gen_transposed_tile_load_store( + name, var, index, is_store=False + ) + # vector load inside the kernel inner loop + loadbuf = f"{tile_var} + {cexpr_index(inner * self.num_elems)}" + dtype = V.graph.get_dtype(name) + line = self._get_vec_load_line(loadbuf, 0, dtype) # type: ignore[arg-type] + csevar = self.cse.generate(self.loads, line, dtype=dtype) + csevar.update_on_args("load", (self, name, index), {}) + assert isinstance(csevar, CppCSEVariable) + csevar.is_vec = True + return csevar + else: + new_index = self.transform_indexing(index) + return super().load(name, new_index) + + def store(self, name, index, value, mode=None): + assert "buf" in name + assert isinstance(value, CppCSEVariable), value + if not value.is_vec: + # this happens when we store a scalar into a vectorized buffer like "fill" + value = self.broadcast(value) + + var = self.args.output(name) + + inner = self.inner_itervar() + index = self.rename_indexing(index) + if self.need_vec_transpose(index): + tile_var = self.gen_transposed_tile_load_store( + name, var, index, is_store=True, store_mode=mode + ) + # vector store inside the kernel inner loop + storebuf = f"{tile_var} + {cexpr_index(inner * self.num_elems)}" + if self.tail_size or V.graph.get_dtype(name) in DTYPE_LOWP_FP + [ + torch.uint8, + torch.int8, + torch.float8_e4m3fn, + torch.float8_e5m2, + ]: + line = f"{value}.store({storebuf}, {cexpr_index(self.num_elems)});" + else: + line = f"{value}.store({storebuf});" + self.stores.writeline(DeferredLine(name, line)) + else: + new_index = self.transform_indexing(index) + super().store(name, new_index, value, mode) + + def codegen_inner_loops(self, code): + inner = self.inner_itervar() + if self.inner_is_tiling_idx: + code.writeline( + f"for (long {inner} = 0; {inner} < {cexpr_index(self.outer_num_elems)}; {inner}++)" + ) + else: + code.writeline( + f"for (long {inner} = 0; {inner} < {cexpr_index(self.inner_num_elems)}; {inner}++)" + ) + + def set_ranges(self, group, reduction_group): + vars = super().set_ranges(group, reduction_group) + # do vertical reduction as the tail loop + self.outer_idx, self.tiling_idx = ( + self.tiling_indices + if self.tiling_indices[1] < self.reduction_depth + else reversed(self.tiling_indices) + ) + if self.tiling_idx == self.tiling_indices[0]: + self.tail_size = self.outer_tail_size + self.num_elems = self.outer_num_elems + self.inner_is_tiling_idx = False + else: + self.tail_size = self.inner_tail_size + self.num_elems = self.inner_num_elems + self.inner_is_tiling_idx = True + return vars + + def transform_indexing(self, index: sympy.Expr) -> sympy.Expr: + return self.scale_index_with_offset( + index, + itervar_idx=self.outer_idx, + offset=self.inner_itervar(), + ) + + +def get_loop_body_lowp_fp(_body: LoopBody) -> tuple[Optional[torch.dtype], bool]: + """ + Returns the low precision data type (torch.float16/torch.bfloat16) contained in the nodes + and if all the nodes can codegen with this data type without converting to float. + Otherwise returns None and True. + """ + sub_blocks = [_body.root_block] + list(_body.subblocks.values()) + + _lowp_fp_type: Optional[torch.dtype] = None + _use_fp32 = False + for sub_block in sub_blocks: + for _node in sub_block.graph.nodes: + if _node.op == "placeholder" or _node.target in ( + "get_index", + "index_expr", + ): + continue + + # Fast path if all operations can support bf16/fp16 without converting to fp32 + if _node.target not in [ + "load", + "store", + "abs", + "neg", + "output", + ]: + _use_fp32 = True + + if hasattr(_node, "meta") and _node.meta: + assert OptimizationContext.key in _node.meta + opt_ctx: OptimizationContext = _node.meta[OptimizationContext.key] + if not opt_ctx.dtype or opt_ctx.dtype not in DTYPE_LOWP_FP: + _use_fp32 = True + elif _lowp_fp_type is not None: + if _lowp_fp_type != opt_ctx.dtype: + warnings.warn("bf16 and fp16 are mixed in the scheduler node.") + else: + _lowp_fp_type = opt_ctx.dtype + else: + _use_fp32 = True + + return _lowp_fp_type, _use_fp32 + + +class TilingSelect: + """ + Implement the heuristic to select the tiling factors and tiling indices. + In the future, we can implement advanced heuristic in a subclass. + """ + + def select_tiling( + self, + fn_list, + var_sizes_list, + ) -> tuple[list[int], list[int]]: + # TODO(jgong5): support alternative tiling factors and data types + loop_bodies = _get_loop_body(fn_list) + all_dtypes = _get_dtype_from_loopbodies(loop_bodies) + assert all_dtypes + if any(dtype not in VECTORIZABLE_DTYPES for dtype in all_dtypes): + return [], [] + dtype = torch.float + _lowp_fp_dtype = get_loop_body_lowp_fp(loop_bodies[0])[0] + if _lowp_fp_dtype and all( + (get_loop_body_lowp_fp(loop_body)[0] == _lowp_fp_dtype) + for loop_body in loop_bodies[1:] + ): + dtype = _lowp_fp_dtype + + tiling_factor = cpu_vec_isa.pick_vec_isa().nelements(dtype=dtype) + tiling_indices = self._select_tiling_indices( + fn_list, var_sizes_list, tiling_factor + ) + + if tiling_indices: + group, reduction_group = max( + var_sizes_list, key=lambda sizes: len(sizes[1]) + ) + call_ranges = tuple(group) + tuple(reduction_group) + + if config.cpp.enable_tiling_heuristics: + + def _try_get_stride( + index, + itervars, + tiling_factor, + tiling_indices, + ): + itervar = itervars[tiling_indices[0]] + stride = stride_at_vec_range(index, itervar, tiling_factor) + return stride if stride.is_number else None + + def _update_negative_op_count( + node_name, non_contig_indexing_op_counter + ): + if node_name not in non_contig_indexing_op_counter: + non_contig_indexing_op_counter[node_name] = 1 + else: + non_contig_indexing_op_counter[node_name] += 1 + + def _is_valid_indices( + itervars, + tiling_indices, + ): + return ( + len(tiling_indices) == 1 + and len(itervars) > 0 + and ( + tiling_indices[0] + if tiling_indices[0] >= 0 + else tiling_indices[0] + len(itervars) + ) + < len(itervars) + ) + + itervars = [ + sympy_index_symbol_with_prefix(SymT.XBLOCK, n) + for n in range(len(call_ranges)) + ] + reduction_depth = len(group) + vars, reduction_vars = ( + itervars[:reduction_depth], + itervars[reduction_depth:], + ) + op_counter: dict[str, int] = {} + # ops may cause overhead with vectorization, like non-contiguous + # index_expr, load, store + non_contig_indexing_op_counter: dict[str, int] = {} + for _body in loop_bodies: + sub_blocks = [_body.root_block] + list(_body.subblocks.values()) + for sub_block in sub_blocks: + for _node in sub_block.graph.nodes: + if _node.target in ["index_expr", "load", "store"]: + # get the index and replace prefix from z to x + arg_idx = 1 if _node.target == "index_expr" else 2 + index = sub_block.body.indexing_from_args( + (vars, reduction_vars) + )[_node.args[arg_idx].args[0]] + if _is_valid_indices(itervars, tiling_indices): + stride = _try_get_stride( + index, itervars, tiling_factor, tiling_indices + ) + if ( + stride is None + if _node.target == "index_expr" + else stride not in [0, 1] + ): + _update_negative_op_count( + _node.target, non_contig_indexing_op_counter + ) + if isinstance(_node.target, str) and not ( + _node.target.startswith("masked_subblock") + or _node.target + in ["ops", "output", "constant", "get_index"] + ): + if _node.target not in op_counter: + op_counter[_node.target] = 1 + else: + op_counter[_node.target] += 1 + + op_num = sum(op_counter.values()) + non_contig_indexing_op_num = sum( + non_contig_indexing_op_counter.values() + ) + ratio_threshold = 0.12 + quantity_threshold = 35 + if non_contig_indexing_op_num >= quantity_threshold or ( + op_num > 0 + and non_contig_indexing_op_num / op_num >= ratio_threshold + ): + # Too many non-contiguous load/store/index_expr which hurts the + # vectorization performance. Disable vectorization when exceeding + # the thresholds. + return [], [] + + if ( + not reduction_group + and group + and len(tiling_indices) == 1 + and not has_free_symbols( + [ + group[tiling_indices[0]], + ] + ) + and group[tiling_indices[0]] < tiling_factor / 4 + and op_num < 10 + ): + # We found that when the number of elements in the inner loop range is + # relatively small(< tiling_factor / 4) and the number of operations is + # not large(< 10), vectorization is not efficient. + # And found that `#pragma GCC ivdep` has better performance than + # `#pragma omp simd simdlen(8)` for these cases. + return [], [] + + if dtype in DTYPE_LOWP_FP: + # For lower precision data type, if the call_range is not long enough, + # use tiling_factor // 2 for better performance + factor_lowp = cpu_vec_isa.pick_vec_isa().nelements(dtype=dtype) + for tiling_indice in tiling_indices: + if tiling_indice < 0: + tiling_indice = tiling_indice + len(call_ranges) + if tiling_indice < 0 or tiling_indice >= len(call_ranges): + continue + if has_free_symbols(call_ranges): + call_range = V.graph.sizevars.size_hint( + call_ranges[tiling_indice], fallback=0 + ) + if call_range < factor_lowp: + V.graph.sizevars.check_lt(call_range, factor_lowp) # type: ignore[arg-type] + tiling_factor = factor_lowp // 2 + break + elif call_ranges[tiling_indice] < factor_lowp: + tiling_factor = factor_lowp // 2 + break + + if len(tiling_indices) == 1: + return [tiling_factor], tiling_indices + if len(tiling_indices) == 2: + return [tiling_factor, tiling_factor], tiling_indices + return [], [] + + def _select_tiling_indices( + self, + fn_list, + var_sizes_list, + tiling_factor, + ): + all_index = [] + for fn, var_sizes in zip(fn_list, var_sizes_list): + rw = dependencies.extract_read_writes(fn, *var_sizes) + all_index += [dep.index for dep in itertools.chain(rw.reads, rw.writes)] + contig_vars = OrderedSet[int]() + contig_vars_list = [] + non_contig_stride_const = OrderedSet[int]() + non_contig_stride_other = OrderedSet[int]() + for index in all_index: + for var in index.free_symbols: + if not re.search(r"^d\d+$", var.name): + continue + stride = stride_at_vec_range(index, var, tiling_factor) + if stride == 0: + continue + elif stride == 1: + contig_vars.add(int(var.name[1:])) + contig_vars_list.append(int(var.name[1:])) + elif all(symbol_is_type(s, SymT.SIZE) for s in stride.free_symbols): + non_contig_stride_const.add(int(var.name[1:])) + else: + non_contig_stride_other.add(int(var.name[1:])) + contig_only = contig_vars - non_contig_stride_const - non_contig_stride_other + group, reduction_group = max(var_sizes_list, key=lambda sizes: len(sizes[1])) + num_itervars = len(group) + len(reduction_group) + if len(contig_vars) == 0: + # no contiguous vars + return [num_itervars - 1] + if contig_only: + return sorted(contig_only)[-1:] + contig_and_const_stride = ( + contig_vars & non_contig_stride_const + ) - non_contig_stride_other + contig_vars_sorted = sorted(contig_vars) + if ( + len(contig_vars_sorted) == 2 + and contig_vars_sorted[-1] in contig_and_const_stride + and contig_vars_sorted[-1] == num_itervars - 1 + ): + return contig_vars_sorted + return sorted(contig_vars_sorted, key=contig_vars_list.count)[-1:] + + +class CppKernelProxy(CppKernel): + # Subclass CppKernel, CppVecKernel, etc., to customize code generation. + # Override CppOverrides or CppVecOverrides to emit custom ops. + # Earlier, this meant copying codegen_functions() to use your subclasses. + # Now, use kernel_cls and vec_kernel_cls class attributes instead. + # This lets CppKernelProxy subclasses inject custom behavior cleanly. + # No need to duplicate codegen_functions() just to swap kernel classes. + kernel_cls: type[CppKernel] = CppKernel + vec_kernel_cls: type[CppVecKernel] = CppVecKernel + tile2d_kernel_cls: type[CppTile2DKernel] = CppTile2DKernel + + def __init__(self, kernel_group): + super().__init__(kernel_group.args, kernel_group.ws.num_threads) + self.kernel_group = kernel_group + self.loop_nest = None + self.call_ranges = None + self.picked_vec_isa: cpu_vec_isa.VecISA = cpu_vec_isa.pick_vec_isa() + self.kernels: list[CppKernel] = [] + + def data_type_propagation(self, nodes): + for _node in nodes: + assert isinstance(_node, SchedulerNode) + DataTypePropagation.propagate_scheduler_node(_node) + + # Check if all the nodes of a given fx graph can support BF16/FP16 + def is_lowp_fp_scheduler(self, scheduler_node: SchedulerNode): + if not isinstance(scheduler_node._body, LoopBody): + return True + # Propagate the dtype to check if all the fx node is bf16/fp16 + DataTypePropagation.propagate_scheduler_node(scheduler_node) + return ( + get_loop_body_lowp_fp(scheduler_node._body)[0] is not None + and not get_loop_body_lowp_fp(scheduler_node._body)[1] + ) + + def legalize_lowp_fp_dtype_loopbody(self, loop_body: LoopBody): + def add_to_dtype(sub_graph: torch.fx.Graph): + def get_input_dtype(node: torch.fx.Node) -> Optional[torch.dtype]: + """Get input dtype for nodes that may consumes lowp fp dt""" + if node.target == "store": + return V.graph.get_dtype(node.args[1]) # type: ignore[arg-type] + elif node.target == "to_dtype_bitcast": + return node.args[-1] # type: ignore[return-value] + elif node.target == "to_dtype": + if len(node.args) > 3: + return node.args[3] # type: ignore[return-value] + else: + return node.kwargs.get("src_dtype", None) # type: ignore[return-value] + else: + return None + + def get_output_dtype(node: torch.fx.Node) -> Optional[torch.dtype]: + """Get output dtype for nodes that may produce lowp fp dt""" + if node.target == "load": + assert len(node.args) == 3 + return V.graph.get_dtype(node.args[1]) # type: ignore[arg-type] + elif node.target in ["to_dtype", "constant", "index_expr"]: + return node.args[-1] # type: ignore[return-value] + elif node.target == "to_dtype_bitcast": + return node.args[2] # type: ignore[return-value] + else: + return None + + def is_lowp_fp_source(node: torch.fx.Node, dt: torch.dtype): + """Check if the given node produces output with expected low precision floating point data type.""" + assert dt in DTYPE_LOWP_FP + return get_output_dtype(node) == dt + + def is_lowp_fp_sink(node: torch.fx.Node, dt: torch.dtype): + """Check if the given node accept input with expected low precision floating point data type.""" + assert dt in DTYPE_LOWP_FP + if input_dtype := get_input_dtype(node): + return input_dtype == dt + elif node.target == "to_dtype": + # The `src_dtype` of a `to_dtype` node might miss, in which case the node accept any input dtype. + return True + else: + return False + + def is_lowp_fp_source_no_promote(node: torch.fx.Node, dt: torch.dtype): + """Check if the node is a lowp fp sources which are all directly fed to ops that accepts lowp fp input + thus no need to promote to float + """ + return is_lowp_fp_source(node, dt) and all( + is_lowp_fp_sink(user, dt) for user in node.users + ) + + sub_graph_nodes = list(sub_graph.nodes) + to_lowp_fp_legalized_nodes = [] + for _node in sub_graph_nodes: + if ( + _node.target in ["load", "index_expr"] + and (dt := get_output_dtype(_node)) in DTYPE_LOWP_FP + ): + # No need to promote to float if all users are ops that accepts lowp fp input + # pyrefly: ignore [bad-argument-type] + if all(is_lowp_fp_sink(user, dt) for user in _node.users): + continue + ops = _node.args[0] + with sub_graph.inserting_after(_node): + to_type_node = sub_graph.call_method( + "to_dtype", args=(ops, _node, torch.float) + ) + _node.replace_all_uses_with( + to_type_node, lambda n: n is not to_type_node + ) + # pyrefly: ignore [bad-assignment] + metrics.cpp_to_dtype_count += 1 + elif ( + _node.target == "store" + and (dt := get_input_dtype(_node)) in DTYPE_LOWP_FP + ): + ops, name, _, value_var, _ = _node.args + # pyrefly: ignore [bad-argument-type] + if is_lowp_fp_source_no_promote(value_var, dt): + continue + dtype = V.graph.get_dtype(name) + with sub_graph.inserting_before(_node): + to_type_node = sub_graph.call_method( + "to_dtype", args=(ops, value_var, dtype) + ) + _node.replace_input_with(value_var, to_type_node) + # pyrefly: ignore [bad-assignment] + metrics.cpp_to_dtype_count += 1 + elif _node.target == "reduction": + ( + ops, + dtype, + src_dtype, + reduction_type, + value, + ) = _node.args + if src_dtype in DTYPE_LOWP_FP: + # Since we always convert the load/store value to float if the tensor is bfloat16/float16. + # Therefore, the reduction should never work with bfloat16/float16 value. Hence, we update + # the bfloat16/float16 reduction by + # 1) updating the src_dtype to float + # and 2) updating the dtype to float if it is bfloat16/float16. + assert dtype in [ + torch.float, + torch.bfloat16, + torch.float16, + torch.int64, + ] + _node.args = ( + ops, + torch.float if dtype in DTYPE_LOWP_FP else dtype, + torch.float, + reduction_type, + value, + ) + elif _node.target == "constant" and _node.args[-1] in DTYPE_LOWP_FP: + # No need to promote to float if all users are ops that accepts lowp fp input + (ops, value, dt) = _node.args + if all(is_lowp_fp_sink(user, dt) for user in _node.users): # type: ignore[arg-type] + continue + _node.args = (ops, value, torch.float) + elif _node.target == "to_dtype" and _node.args[-1] in DTYPE_LOWP_FP: + # No need to promote to float if all users are ops that accepts lowp fp input + (ops, x, dt) = _node.args + if all(is_lowp_fp_sink(user, dt) for user in _node.users): # type: ignore[arg-type] + continue + # The legalization always loads the BF16/FP16 tensor as FP32 for computation + # and converts back to BF16/FP16 after the computation. + # Hence, there should be no computation w/ BF16/FP16. + # Therefore, we update the to_dtype by replacing the bf16/fp16 dtype with fp32. + # Save the legalized to_dtype node for the elimination(eliminate_to_dtype step): + # 1) Eliminate the redundant to_dtype node if we have a pattern as follows: + # graph(): + # %lowp_fp_legalized = call_method[target=to_dtype](args = (%ops, %input, torch.float)) + # %to_dtype2 = call_method[target=to_dtype](args = (%ops, %lowp_fp_legalized, torch.bfloat16/float16)) + # Regarding the first to_dtype, it is redundant because + # the second to_type also converts to the torch.bfloat16/torch.float16. + # Hence, we remove the first to_type. + to_lowp_fp_legalized_nodes.append(_node) + _node.args = (ops, x, torch.float) + elif _node.target == "to_dtype_bitcast": + (ops, value_var, dtype, src_dtype) = _node.args + + # to_dtype_bitcast act as a lowp fp sink: + # c10::bit_cast requires the source and target have the same bitwidth. Because the input tensor's + # dtype could be promoted, e.g. from float16 to float, we have to cast the tensor to its original + # source dtype before invoking bit_cast. + if src_dtype in DTYPE_LOWP_FP: + # No need to promote to float if it is a user of a lowp fp sources + # which are all directly fed to ops that accepts lowp fp input + if not is_lowp_fp_source_no_promote(value_var, src_dtype): + with sub_graph.inserting_before(_node): + to_type_node = sub_graph.call_method( + "to_dtype", args=(ops, value_var, src_dtype) + ) + _node.replace_input_with(value_var, to_type_node) + # pyrefly: ignore [bad-assignment] + metrics.cpp_to_dtype_count += 1 + + # to_dtype_bitcast act as a lowp fp source: + # We also need to convert the bit-casted tensor back to float to make sure we keep using higher + # precision values for the rest of the computation. + if dtype in DTYPE_LOWP_FP: + # No need to promote to float if all users are ops that accepts lowp fp input + if not ( + all(is_lowp_fp_sink(user, dtype) for user in _node.users) + ): + ops = _node.args[0] + with sub_graph.inserting_after(_node): + to_type_node = sub_graph.call_method( + "to_dtype", args=(ops, _node, torch.float) + ) + _node.replace_all_uses_with( + to_type_node, lambda n: n is not to_type_node + ) + # pyrefly: ignore [bad-assignment] + metrics.cpp_to_dtype_count += 1 + + def eliminate_to_dtype(sub_graph: torch.fx.Graph): + def _eliminate_duplicate_to_node(sub_graph: torch.fx.Graph): + # Eliminate the redundant to_dtype node. Let's consider a pattern as follows: + # graph(): + # %to_dtype1 = call_method[target=to_dtype](args = (%ops, %input, torch.float), kwargs = {}) + # %to_dtype2 = call_method[target=to_dtype](args = (%ops, %to_dtype1, torch.float), kwargs = {}) + # Regarding the first to_dtype, it is redundant because the second to_type also converts to the + # torch.float. Hence, we remove the first to_type + def _used_by_to(to_node: torch.fx.Node): + return all(usr.target == "to_dtype" for usr in to_node.users) + + all_to_nodes = [ + node for node in sub_graph.nodes if node.target == "to_dtype" + ] + all_to_nodes_and_users = [ + {node: node.users} for node in all_to_nodes if _used_by_to(node) + ] + for node_users in all_to_nodes_and_users: + for node, users in node_users.items(): + if node in sub_graph.nodes and ( + all(usr.args[-1] == node.args[-1] for usr in users) + or ( + node in to_lowp_fp_legalized_nodes + and all( + usr.args[-1] in DTYPE_LOWP_FP for usr in users + ) + ) + ): + val_node = node.all_input_nodes[-1] + node.replace_all_uses_with(val_node) + sub_graph.erase_node(node) + + # For debug mode, the graph of LoopBody will attach a new GraphModule as + # owning_module for debugging while the release mode will not. The lint will + # check whether the graph has owning_module to decide if it needs to check + # call_module. LoopBody might contain get_index as a module call. But it + # is just a function. Hence, it cannot pass the lint check for debug mode. + # We bypass the check if the owning_module is None. Eventually, we should call + # get_index via call_function but not call_module. + if sub_graph.owning_module is None: + sub_graph.lint() + + _eliminate_duplicate_to_node(sub_graph) + + eliminate_to_dtype(sub_graph) + + sub_blocks = [loop_body.root_block] + list(loop_body.subblocks.values()) + for sub_block in sub_blocks: + add_to_dtype(sub_block.graph) + + def legalize_lowp_fp_dtype(self, nodes): + if all( + isinstance(_node, SchedulerNode) and self.is_lowp_fp_scheduler(_node) + for _node in nodes + ): + # Mark the load node to load bf16/fp16 + for _node in nodes: + sub_blocks = [_node._body.root_block] + list( + _node._body.subblocks.values() + ) + for sub_block in sub_blocks: + for fx_node in sub_block.graph.nodes: + if fx_node.target in ["load", "store"]: + assert fx_node.meta + assert OptimizationContext.key in fx_node.meta + opt_ctx: OptimizationContext = fx_node.meta[ + OptimizationContext.key + ] + assert opt_ctx.dtype in DTYPE_LOWP_FP + + # Bypass the legalization as the kernel can run with bf16/fp16 directly + return + + for _node in nodes: + assert isinstance(_node, SchedulerNode) + assert isinstance(_node._body, LoopBody) + body: LoopBody = _node._body + if not body.is_memory_copy(): + self.legalize_lowp_fp_dtype_loopbody(body) + + def codegen_functions(self, fn_list, var_sizes_list): + assert len(fn_list) == len(var_sizes_list) + kernel_group = self.kernel_group + group, reduction_group = max(var_sizes_list, key=lambda sizes: len(sizes[1])) + + self.set_ranges(group, reduction_group) + + def codegen_kernel(cls, *args): + with kernel_group.new_kernel(cls, *args) as kernel: + # Ugly hack to maintain the metrics kernel count since + # we only count in CppKernelProxy, not those contained in it + # pyrefly: ignore [bad-assignment] + metrics.generated_kernel_count -= 1 + + run(kernel) + return kernel + + def run(kernel): + vars, reduction_vars = kernel.set_ranges(group, reduction_group) + in_suffix = False + for fn, var_sizes in zip(fn_list, var_sizes_list): + if var_sizes in [ + (group, reduction_group), + (tuple(itertools.chain(group, reduction_group)), ()), + ]: + assert not in_suffix + fn(vars, reduction_vars) + else: + in_suffix = True + assert var_sizes == ( + group, + (), + ), f"unexpected group: {var_sizes} != {group}, {reduction_group}" + # we can fuse in some extra pointwise into the suffix + with kernel.write_to_suffix(): + fn(vars, ()) + + scalar_kernel = codegen_kernel(self.kernel_cls) + V.graph.removed_buffers |= scalar_kernel.removed_buffers + V.graph.inplaced_to_remove |= scalar_kernel.inplaced_to_remove + self.loop_nest = LoopNest.build(scalar_kernel) + + if not self.picked_vec_isa or not self.itervars: + self.kernels = [scalar_kernel] + self.aggregate_reduction_buffers(False, None) + self.loop_nest.set_kernel(self) + return + + # Kernels share the same global contexts like V.graph.wrapper_code, V.kernel.args. + # But the generated scalar kernel has updated these global contexts. Hence, the other kernels + # should not do this again to avoid context conflict. By now, we only control the + # config.inplace_buffers. In the future, we could maintain more contexts. + with torch._inductor.config.patch(inplace_buffers=False): + tiling_select = TilingSelect() + tiling_factors, tiling_indices = tiling_select.select_tiling( + fn_list, var_sizes_list + ) + assert len(tiling_factors) == len(tiling_indices) + _inner_loop_reduction_outer_not = False + _outer_loop = None + if tiling_indices: + inner_loop_reduction = False + outer_loop_level = tiling_indices[0] + inner_loop_level = outer_loop_level + 1 + if len(self.loop_nest.loops) > inner_loop_level: + inner_loop_reduction = self.loop_nest.loops[ + inner_loop_level + ].is_reduction + outer_loop_reduction = self.loop_nest.loops[ + outer_loop_level + ].is_reduction + _inner_loop_reduction_outer_not = ( + inner_loop_reduction and not outer_loop_reduction + ) + + if len(tiling_indices) == 1: + # pyrefly: ignore [bad-assignment] + metrics.generated_cpp_vec_kernel_count += 1 + loop = self.loop_nest.tile(tiling_indices[0], factor=tiling_factors[0]) + vec_kernel = codegen_kernel( + self.vec_kernel_cls, tiling_factors[0], tiling_indices[0] + ) + tail_size = loop.size - loop.tiled_size + vec_kernel.active_ranges = {loop.var: (0, loop.tiled_size)} + if config.cpp.enable_loop_tail_vec: + tail_kernel = codegen_kernel( + self.vec_kernel_cls, + tiling_factors[0], + tiling_indices[0], + tail_size, + ) + else: + tail_kernel = scalar_kernel + scalar_kernel.inner_itervars = [loop.var] + tail_kernel.active_ranges = {loop.var: (loop.tiled_size, loop.size)} + self.kernels = [vec_kernel, tail_kernel] + _outer_loop = loop + elif len(tiling_indices) == 2: + assert ( + tiling_indices[1] == len(self.itervars) - 1 + and tiling_factors[0] == tiling_factors[1] + ) + + # pyrefly: ignore [bad-assignment] + metrics.generated_cpp_vec_kernel_count += 2 + outer_loop = self.loop_nest.tile( + tiling_indices[0], factor=tiling_factors[0] + ) + outer_ranges = { + "main": (0, outer_loop.tiled_size), + "tail": (outer_loop.tiled_size, outer_loop.size), + } + outer_tail_size = outer_loop.size - outer_loop.tiled_size + inner_loop = self.loop_nest.tile( + tiling_indices[1], factor=tiling_factors[0] + ) + inner_ranges = { + "main": (0, inner_loop.tiled_size), + "tail": (inner_loop.tiled_size, inner_loop.size), + } + inner_tail_size = inner_loop.size - inner_loop.tiled_size + tile2d_kernel = codegen_kernel( + self.tile2d_kernel_cls, + tiling_factors[0], + tiling_indices, + ) + tile2d_kernel.active_ranges = { + outer_loop.var: outer_ranges["main"], + inner_loop.var: inner_ranges["main"], + } + tail_kernel = [] + if config.cpp.enable_loop_tail_vec: + for outer_r, inner_r in ( + ("main", "tail"), + ("tail", "main"), + ("tail", "tail"), + ): + _inner_tail_size = ( + inner_tail_size if inner_r == "tail" else None + ) + _outer_tail_size = ( + outer_tail_size if outer_r == "tail" else None + ) + kernel = codegen_kernel( + self.tile2d_kernel_cls, + tiling_factors[0], + tiling_indices, + _inner_tail_size, + _outer_tail_size, + ) + kernel.active_ranges = { + outer_loop.var: outer_ranges[outer_r], + inner_loop.var: inner_ranges[inner_r], + } + tail_kernel.append(kernel) + else: + vec_kernel = codegen_kernel( + self.vec_kernel_cls, tiling_factors[0], tiling_indices[0] + ) + vec_kernel.active_ranges = { + outer_loop.var: outer_ranges["main"], + inner_loop.var: inner_ranges["tail"], + } + vec_kernel.inner_itervars = [inner_loop.var] + tail_kernel.append(vec_kernel) + scalar_kernel.active_ranges = { + outer_loop.var: outer_ranges["tail"], + inner_loop.var: (0, inner_loop.size), + } + scalar_kernel.inner_itervars = [inner_loop.var, outer_loop.var] + tail_kernel.append(scalar_kernel) + self.kernels = [tile2d_kernel] + tail_kernel + _outer_loop = outer_loop + else: + self.kernels = [scalar_kernel] + self.aggregate_reduction_buffers( + _inner_loop_reduction_outer_not, _outer_loop + ) + self.loop_nest.set_kernel(self) + + def codegen_loop_bodies(self, loop_bodies, var_sizes_list): + for body in loop_bodies: + self.legalize_lowp_fp_dtype_loopbody(body) + DataTypePropagation.propagate_loopbody(body) + self.codegen_functions(loop_bodies, var_sizes_list) + + def codegen_nodes(self, nodes: list[SchedulerNode]): + # Legalize BF16 node by adding to_dtype explicitly + self.legalize_lowp_fp_dtype(nodes) + self.data_type_propagation(nodes) + assert len(nodes) >= 1 + + def fn(node, *index_vars): + node.decide_inplace_update() + node.mark_run() + if isinstance(V.kernel, NullKernelHandler): + return node._body(*index_vars) + else: + return node.codegen(index_vars) + + fn_list = [functools.partial(fn, node) for node in nodes] + + if ( + isinstance(V.local_buffer_context, LocalBufferContext) + and V.local_buffer_context.local_buffers + ): + + def wrap_fn(fn): + wrapped_fn = V.local_buffer_context.localize_function( + fn, + ) + wrapped_fn.original_fn = fn + return wrapped_fn + + fn_list = [wrap_fn(fn) for fn in fn_list] + + var_sizes_list = [node.group[1] for node in nodes] + self.codegen_functions(fn_list, var_sizes_list) + + def codegen_loops(self, code, worksharing): + self.codegen_loops_impl(self.loop_nest, code, worksharing) + + def update_stores_with_parallel_reduction(self): + for kernel in self.kernels: + kernel.update_stores_with_parallel_reduction() + + def gen_body(self, code: Optional[BracesBuffer] = None): + assert code is not None + if_prefix = "C10_LIKELY" + for kernel in self.kernels: + with contextlib.ExitStack() as stack: + if kernel.codegen_conditions(code, if_prefix): + if_prefix = "C10_UNLIKELY" + stack.enter_context(code.indent()) + code.splice(kernel.gen_body()) + + def aggregate_reduction_buffers( + self, inner_loop_reduction_outer_not: bool, outer_loop: Optional["LoopLevel"] + ): + """ + CppKernel/CppVecKernel/CppTile2dKernel have reduction buffers themselves. + Here, we decide how to aggregate them together and place new reduction buffers + under CppKernelProxy. + """ + + def aggregate_reduction_prefix_suffix(outer_loop: "LoopLevel"): + assert len(self.kernels) >= 2 + main_loop_kernel = self.kernels[0] + tail_loop_kernel = self.kernels[-1] + assert isinstance(main_loop_kernel, self.vec_kernel_cls) + + # Prefix + if type(tail_loop_kernel) is self.kernel_cls: + # if tail loop kernel is a scalar kernel, we need to extend tmp_acc -> tmp_acc_arr[] to + # hold the temporary inner loop acc result for outer tail loop + tail_loop_kernel.finalize_reduction_prefix( + main_loop_kernel.tiling_factor + ) + main_loop_kernel.finalize_reduction_prefix() + self.reduction_prefix.splice( + tail_loop_kernel.reduction_prefix + + main_loop_kernel.reduction_prefix + ) + else: + main_loop_kernel.finalize_reduction_prefix() + self.reduction_prefix.splice(main_loop_kernel.reduction_prefix) + + # Suffix + suffix_buf = BracesBuffer() + with contextlib.ExitStack() as stack: + if main_loop_kernel.codegen_conditions( + suffix_buf, "C10_LIKELY", outer_loop.var + ): + stack.enter_context(suffix_buf.indent()) + suffix_buf.splice(main_loop_kernel.reduction_suffix) + with contextlib.ExitStack() as stack: + if tail_loop_kernel.codegen_conditions( + suffix_buf, "C10_UNLIKELY", outer_loop.var + ): + stack.enter_context(suffix_buf.indent()) + if type(tail_loop_kernel) is self.kernel_cls: + reduction_vars = tail_loop_kernel.reduction_var_names + for name in reduction_vars: + new_name = f"{name}_arr[{outer_loop.var}_tail - {cexpr_index(outer_loop.tiled_size)}]" + replace_acc_name(tail_loop_kernel.stores, name, new_name) + replace_acc_name( + tail_loop_kernel.reduction_suffix, name, new_name + ) + # If tail loop kernel is a scalar kernel, use direct sum instead of cascade_sum_combine + # as the reduction vars are extended: tmp_acc -> tmp_acc_arr[]. + replace_cascade_sum_with_add(tail_loop_kernel.stores) + suffix_buf.splice( + move_code_under_inner_loop( + tail_loop_kernel.reduction_suffix, + outer_loop.var, + f"{outer_loop.var}_tail", + outer_loop.tiled_size, + outer_loop.size, + ) + ) + else: + suffix_buf.splice(tail_loop_kernel.reduction_suffix) + self.reduction_suffix = suffix_buf + + main_kernel = self.kernels[0] + if inner_loop_reduction_outer_not: + assert outer_loop + aggregate_reduction_prefix_suffix(outer_loop) + else: + main_kernel.finalize_reduction_prefix() + self.reduction_prefix.splice(main_kernel.reduction_prefix) + self.reduction_suffix.splice(main_kernel.reduction_suffix) + self.parallel_reduction_prefix.splice(main_kernel.parallel_reduction_prefix) + self.parallel_reduction_suffix.splice(main_kernel.parallel_reduction_suffix) + self.local_reduction_init.splice(main_kernel.local_reduction_init) + self.local_reduction_stores.splice(main_kernel.local_reduction_stores) + self.non_parallel_reduction_prefix.splice( + main_kernel.non_parallel_reduction_prefix + ) + self.non_parallel_reduction_suffix.splice( + main_kernel.non_parallel_reduction_suffix + ) + + +class OuterLoopFusedKernel(CppKernel): + def __init__(self, kernel_group): + super().__init__(kernel_group.args, kernel_group.ws.num_threads) + self.inner: list[LoopNest] = [] + + def decide_parallel_depth(self, max_parallel_depth, threads): + kernels_parallel_depth = [] + nested_kernels: list[CppKernel] = [ + loop_nest.get_kernel() for loop_nest in self.inner + ] + # TODO(leslie-fang-intel): only enable parallel within all outer loop levels. + for kernel in nested_kernels: + # For any ScalarKernel, VecKernel, or Tile2DKernel, + # they should all have the same call_ranges + call_ranges = kernel.call_ranges + assert call_ranges is not None + kernels_parallel_depth.append( + kernel.decide_parallel_depth( + ParallelDepth( + parallel_depth=( + len(call_ranges) - max_parallel_depth.start_depth + ), + start_depth=max_parallel_depth.start_depth, + ), + threads, + ).parallel_depth + ) + return ParallelDepth( + parallel_depth=min( + max_parallel_depth.parallel_depth, max(kernels_parallel_depth) + ), + start_depth=max_parallel_depth.start_depth, + ) + + +class ReasonFusedNodes(Enum): + SAME_VARS_REDUCE = "same_vars_reduce" + COMPATIBLE_REDUCTION = "compatible_reduction" + COMPATIBLE_RANGES_NO_REDUCTION = "compatible_ranges_no_reduction" + + +class CppScheduling(BaseScheduling): + # Subclass CppKernelProxy to customize codegen without copying codegen_node(). + # Use kernel_proxy_cls to inject custom proxies in CppScheduling subclasses. + # Avoid duplicating codegen_node() just to swap in a custom kernel proxy class. + kernel_proxy_cls: type[CppKernelProxy] = CppKernelProxy + # ctypes limits the number of args to 1024, refer to: + # https://github.com/python/cpython/commit/a285af7e626d1b81cf09f8b2bf7656f100bc1237 + # We set a conservative threshold here. + MAX_FUSED_KERNEL_ARGS_NUM = 500 + backend_features = OrderedSet( + [ + BackendFeature.INPLACE_BUFFERS, + BackendFeature.REDUCE_TO_SINGLE_ELEMENT, + ] + ) + + @classmethod + def get_backend_features(cls, device: torch.device) -> OrderedSet[BackendFeature]: + return cls.backend_features + + def __init__(self, scheduler): + super().__init__(scheduler) + if scheduler: + self.reset_kernel_group() + self._ready_to_flush = False + + def _set_flush_status(self, status: bool): + self._ready_to_flush = status + + def group_fn(self, sizes): + return tuple(tuple(map(V.graph.sizevars.simplify, s)) for s in sizes) + + def reset_kernel_group(self): + self.kernel_group = KernelGroup() + + def fuse(self, node1, node2): + if node1.is_foreach() or node2.is_foreach(): + return ForeachKernelSchedulerNode.fuse(node1, node2) + elif node1.is_template(): + assert not node2.is_template() + return FusedSchedulerNode.fuse(node1, node2) + else: + if ( + self._why_fuse_nodes(node1, node2) + == ReasonFusedNodes.COMPATIBLE_RANGES_NO_REDUCTION + ): + assert isinstance(node1, (SchedulerNode, FusedSchedulerNode)) + assert isinstance(node2, (SchedulerNode, FusedSchedulerNode)) + + _, (vars1, reduce1) = node1.group + _, (vars2, reduce2) = node2.group + assert reduce1 == () and reduce2 == (), (reduce1, reduce2) + + def get_indexing_ranges_exprs(node): + if isinstance(node, FusedSchedulerNode): + assert len(node.snodes) > 0, node.snodes + var_ranges = None + indexing_exprs = OrderedSet[Any]() + for snode in node.snodes: + v, exprs = get_indexing_ranges_exprs(snode) + if var_ranges is None: + var_ranges = v + assert var_ranges == v, (var_ranges, v, node.snodes) + indexing_exprs.update(exprs) + return var_ranges, list(indexing_exprs) + else: + assert isinstance(node, SchedulerNode) + comp_buffer = node.node + assert isinstance(comp_buffer, ir.ComputedBuffer) + _, body, _ = comp_buffer.get_default_sizes_body() + return body.var_ranges, list(body.indexing_exprs.values()) + + node_to_recomp = node1 if len(vars1) < len(vars2) else node2 + assert isinstance(node_to_recomp, SchedulerNode) + + ref_node = node2 if len(vars1) < len(vars2) else node1 + + ref_indexing_constraints = get_indexing_ranges_exprs(ref_node) + + node_to_recomp.recompute_size_and_body( + extra_indexing_constraints=ref_indexing_constraints + ) + + _, (vars1, _) = node1.group + _, (vars2, _) = node2.group + + if vars1 == vars2: + return FusedSchedulerNode.fuse(node1, node2) + + # recompute ref_node if its ranges are also changed + node_to_recomp_indexing_constraints = get_indexing_ranges_exprs( + node_to_recomp + ) + if isinstance(ref_node, SchedulerNode): + ref_node.recompute_size_and_body( + extra_indexing_constraints=node_to_recomp_indexing_constraints + ) + else: + assert isinstance(ref_node, FusedSchedulerNode) + for snode in ref_node.snodes: + assert isinstance(snode, SchedulerNode) + snode.recompute_size_and_body( + extra_indexing_constraints=node_to_recomp_indexing_constraints + ) + ref_node = FusedSchedulerNode(ref_node.scheduler, ref_node.snodes) + + _, (vars1, _) = node1.group + _, (vars2, _) = node2.group + assert vars1 == vars2, (vars1, vars2) + return FusedSchedulerNode.fuse(node1, node2) + elif self.can_fuse_vertical_outer_loop(node1, node2): + return OuterLoopFusedSchedulerNode.fuse( + node1, node2, self._get_outer_loop_fusion_depth(node1, node2) + ) + else: + return FusedSchedulerNode.fuse(node1, node2) + + def _why_fuse_nodes(self, node1, node2) -> Optional[ReasonFusedNodes]: + _, (vars1, reduce1) = node1.group + _, (vars2, reduce2) = node2.group + + if vars1 == vars2 and reduce1 == reduce2: + return ReasonFusedNodes.SAME_VARS_REDUCE + if reduce1 == () and vars1 == vars2 + reduce2: + return ReasonFusedNodes.COMPATIBLE_REDUCTION + if self._can_fuse_nodes_with_compatible_ranges(node1, node2): + return ReasonFusedNodes.COMPATIBLE_RANGES_NO_REDUCTION + # TODO(jansel): allow fusion pointwise (vars1, ()) suffix? + return None + + def _can_fuse_nodes_with_compatible_ranges(self, node1, node2): + # Here we try to fuse SchedulerNode/FusedSchedulerNode with compatible ranges + # e.g. (s0, s1, s2) and (s0 * s1 * s2) + _, (vars1, reduce1) = node1.group + _, (vars2, reduce2) = node2.group + + c1 = reduce1 == () and reduce2 == () + c2 = math.prod(vars1) == math.prod(vars2) + c3 = len(vars1) == 1 or len(vars2) == 1 + if not (c1 and c2 and c3): + return False + + node_to_recomp = node1 if len(vars1) < len(vars2) else node2 + ref_node = node2 if len(vars1) < len(vars2) else node1 + + # We can not recompute sizes and body for nodes other than SchedulerNode + # TODO: we can extend fusion support with compatible ranges for FusedSchedulerNode + if isinstance(node_to_recomp, FusedSchedulerNode): + return False + + # It may happen that node1 and node2 compatible number of elements + # but different original ranges, for example: + # {d0: s0, d1: s1, d2: s2} vs {d0: s0*s1*s2} + # See https://github.com/pytorch/pytorch/pull/120077/files#r1500427848 for more details + # TODO: we can fix if it allows us to CSE at least one of the variables + + assert isinstance(node_to_recomp, SchedulerNode) + if isinstance(node_to_recomp.node, ir.TemplateBuffer): + return False + assert isinstance(node_to_recomp.node, ir.ComputedBuffer) + # node.data.get_size() is a cheaper version of node.get_read_writes().var_ranges + # but without variable name + ranges2 = node_to_recomp.node.data.get_size() + ranges1 = None + if isinstance(ref_node, FusedSchedulerNode): + ranges_set = OrderedSet[tuple[Any, ...]]() + for snode in ref_node.snodes: + if isinstance(snode.node, ir.TemplateBuffer): + break + assert isinstance(snode.node, ir.ComputedBuffer) + ranges_set.add(tuple(snode.node.data.get_size())) + + if len(ranges_set) != 1: + return False + + ranges1 = list(next(iter(ranges_set))) + else: + assert isinstance(ref_node, SchedulerNode) + assert isinstance(ref_node.node, ir.ComputedBuffer) + ranges1 = ref_node.node.data.get_size() # type: ignore[assignment] + + if ranges1 != ranges2: + return False + + return True + + def _can_fuse_horizontal_impl(self, node1, node2): + assert isinstance(node1, (FusedSchedulerNode, SchedulerNode)) + assert isinstance(node2, (FusedSchedulerNode, SchedulerNode)) + if any( + isinstance(node, OuterLoopFusedSchedulerNode) for node in (node1, node2) + ): + return False + return self._why_fuse_nodes(node1, node2) is not None + + def can_fuse_horizontal(self, node1, node2): + if node1.is_template() or node2.is_template(): + return False + if ( + len(node1.get_nodes()) + len(node2.get_nodes()) + > config.cpp.max_horizontal_fusion_size + ): + return False + + return self._can_fuse_horizontal_impl(node1, node2) + + def can_fuse_multi_outputs_template( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + if template_buf := node1.get_template_node(): + return ( + isinstance(template_buf.layout, ir.MultiOutputLayout) + and isinstance(node2.node, ir.MultiOutput) + and len(node2.node.inputs) == 1 + and node2.node.inputs[0].get_name() == template_buf.name # type: ignore[union-attr] + ) + return False + + def _get_outer_loop_fusion_depth(self, node1, node2): + DISABLE_OUTER_LOOP_FUSION = 0 + if not all( + type(node) + in (OuterLoopFusedSchedulerNode, FusedSchedulerNode, SchedulerNode) + for node in (node1, node2) + ): + return DISABLE_OUTER_LOOP_FUSION + + _node1 = ( + node1.get_outer_nodes()[-1] + if isinstance(node1, OuterLoopFusedSchedulerNode) + else node1 + ) + assert isinstance(_node1, (FusedSchedulerNode, SchedulerNode)) + _node2 = ( + node2.get_outer_nodes()[0] + if isinstance(node2, OuterLoopFusedSchedulerNode) + else node2 + ) + assert isinstance(_node2, (FusedSchedulerNode, SchedulerNode)) + + _, (vars1, reduce1) = _node1.group + _, (vars2, reduce2) = _node2.group + if vars1 == () and vars2 == () and reduce1 != () and reduce2 != (): + # Reduction only + return DISABLE_OUTER_LOOP_FUSION + if all(type(node) is OuterLoopFusedSchedulerNode for node in (node1, node2)): + return ( + node1.outer_loop_fusion_depth + if node1.outer_loop_fusion_depth == node2.outer_loop_fusion_depth + else DISABLE_OUTER_LOOP_FUSION + ) + outer_loop_fusion_depth = min(len(vars1), len(vars2)) + if ( + outer_loop_fusion_depth >= 1 + and vars1[:outer_loop_fusion_depth] == vars2[:outer_loop_fusion_depth] + ): + if any( + type(node) is OuterLoopFusedSchedulerNode for node in (node1, node2) + ): + _compare_node = ( + node1 if type(node1) is OuterLoopFusedSchedulerNode else node2 + ) + if _compare_node.outer_loop_fusion_depth == outer_loop_fusion_depth: + # Same outer loop fusion depth as prev nodes in OuterLoopFusedSchedulerNode + return outer_loop_fusion_depth + else: + return DISABLE_OUTER_LOOP_FUSION + else: + # First 2 nodes to generate OuterLoopFusedSchedulerNode + return outer_loop_fusion_depth + return DISABLE_OUTER_LOOP_FUSION + + def can_fuse_vertical_outer_loop(self, node1, node2): + return ( + not node1.is_template() + and not node2.is_template() + and node1.get_operation_names() & node2.ancestors + and not ( + self._can_fuse_horizontal_impl(node1, node2) + and not node1.is_reduction() + ) + and self._get_outer_loop_fusion_depth(node1, node2) >= 1 + ) + + def get_fusion_pair_priority(self, node1, node2): + if self.can_fuse_vertical_outer_loop(node1, node2): + # Outer loop fusion with lower priority + return 1 + else: + return 0 + + def can_fuse_vertical(self, node1, node2): + if node2.is_template(): + # TODO(jgong5): support pre-op fusion with template + return False + if node1.is_template(): + template_fusion_supported, _ = template_fusion_with_epilogues_supported( + node1, [node2] + ) + return not node2.is_reduction() and template_fusion_supported + return ( + self._can_fuse_horizontal_impl(node1, node2) and not node1.is_reduction() + ) or self.can_fuse_vertical_outer_loop(node1, node2) + + def try_loop_split(self, nodes: list[SchedulerNode]): + """ + Apply loop split optimization. + When one of the indexing_exprs contains a division, we eliminate the division by splitting the loop + to avoid non-contiguous loads, subject to the following conditions: + 1. No reduction and no mudular index for all nodes. + 2. The indexing_exprs of all nodes contain only one (or more, but all the same) division, + where the divisor is an integer and not too small (the divisor > 8), the dividend is + one of the iter_vars, and this var, i.e. the dimension that needs to be split, is + contiguous in all other indexing_exprs. + + For example, if the node's var_ranges: {z0: 2, z1: 9216, z2: 960} and indexing_exprs: + {'index0': 8847360*z0 + 960*z1 + z2, 'index1': 32*z0 + (z2//30), 'index2': z2}, + we will split z2 -> 30*z2 + z3, then the node's var_ranges will be changed to + {z0: 2, z1: 9216, z2: 32, z3: 30} and indexing_exprs will be changed to + {'index0': 8847360*z0 + 960*z1 + 30*z2 + z3, 'index1': 32*z0 + z2, 'index2': 30*z2 + z3}. + """ + + # No reduction and no mudular + if any( + len(node.group[1][1]) != 0 + or any( + expr.has(ModularIndexing) for expr in node._body.indexing_exprs.values() + ) + for node in nodes + ): + return nodes + + split_var = None + split_number = None + num_div = 0 + div_expr_ = None + match_div = False + matched_node = None + + for node in nodes: + assert isinstance(node.node, ir.ComputedBuffer) + _, original_body, _ = node.node.get_default_sizes_body() + for name, expr in original_body.indexing_exprs.items(): + if not isinstance(expr, sympy.Expr): + continue + for div_expr in expr.find(FloorDiv): + if ( + any(div_expr.has(var) for var in original_body.iter_vars) + and div_expr != div_expr_ + ): + div_expr_ = div_expr + num_div += 1 + if num_div > 1: + return nodes + if ( + isinstance(div_expr.args[1], sympy.core.numbers.Integer) + and div_expr.args[0] in original_body.iter_vars + and name is not None + and all( + stride_at_vec_range(expr_, div_expr.args[0]) in (0, 1) + for name_, expr_ in original_body.indexing_exprs.items() + if name_ != name + ) + and div_expr.args[1] > 8 + ): + split_var = div_expr.args[0] + split_number = div_expr.args[1] + match_div = True + matched_node = node + + # Only one node contains a division, and the split dimension is contiguous in all other indexing_exprs. + if not match_div: + return nodes + + extra_indexing_constraints = None + + def loop_split(sizes, body, vars): + index_size, reduce_size = sizes + index_vars, reduce_vars = vars + split_idx = index_vars.index(split_var) + new_index_size = index_size.copy() + new_index_size[split_idx] = index_size[split_idx] // split_number + new_index_size.insert(split_idx + 1, split_number) + (new_index_vars, _), var_ranges = dependencies.index_vars_no_squeeze( + new_index_size, reduce_size, prefix="y" + ) + iter_vars = new_index_vars.copy() + divisor_var = iter_vars.pop(split_idx + 1) + iter_vars[split_idx] = split_number * iter_vars[split_idx] + divisor_var + body = ir.LoopBody( + body, [iter_vars, reduce_vars], var_ranges, new_index_vars, reduce_vars + ) + nonlocal extra_indexing_constraints + if not extra_indexing_constraints: + extra_indexing_constraints = ( + body.var_ranges, + list(body.indexing_exprs.values()), + ) + return ( + (new_index_size, reduce_size), + body, + (new_index_vars, reduce_vars), + ) + + # Here decide the final loop order + for node in nodes: + if node == matched_node: + node.recompute_size_and_body(recompute_sizes_body_func=loop_split) + for node in nodes: + if node != matched_node: + node.recompute_size_and_body( + extra_indexing_constraints=extra_indexing_constraints, + recompute_sizes_body_func=loop_split, + ) + + return nodes + + def codegen_outer_loop_node( + self, + node: OuterLoopFusedSchedulerNode, + ): + """ + Generate the code for the outer loop fused scheduler node. + 1. Codegen with fused outer loop: depends on the analysis of + the outer loop fused scheduler node, with or without the local buffer. + 2. If failed, fallback to standard codegen. + """ + kernel_group = self.kernel_group + generated_cpp_vec_kernel_count = metrics.generated_cpp_vec_kernel_count + cpp_kernel_proxy_list: list[self.kernel_proxy_cls] = [] # type: ignore[name-defined] + nodes_list: list[list[SchedulerNode]] = [] + assert isinstance(node, OuterLoopFusedSchedulerNode) + + def try_outer_loop_fusion_with_local_buf(node: OuterLoopFusedSchedulerNode): + """ + Codegen code with fused outer loop and local Buffer. + """ + assert isinstance(node, OuterLoopFusedSchedulerNode) + cpp_kernel_proxy_list.clear() + nodes_list.clear() + + def get_call_ranges(node: BaseSchedulerNode): + assert isinstance(node, (SchedulerNode, FusedSchedulerNode)) + nodes: list[SchedulerNode] = node.get_nodes() # type: ignore[assignment] + _, (group, reduction_group) = max( + nodes, key=lambda x: int(x.is_reduction()) + ).group + call_ranges = tuple(group) + tuple(reduction_group) + return call_ranges + + local_buffers: list[ir.Buffer] = [] + # Map local buffer name to a list of global buffers + local_to_global_buffers: dict[str, list[ir.Buffer]] = {} + if all( + len(get_call_ranges(_node)) == node.outer_loop_fusion_depth + 1 + for _node in node.get_outer_nodes() + ): + # Ref to the typical case of local buffer in + # https://github.com/pytorch/pytorch/blob/1115a25c36340554442f28f9570abd42f0aface2/aten/src/ATen/native/cpu/SoftMaxKernel.cpp#L159 # noqa: B950 + # where the buffer is with size of last dim and contiguous. + # Only support this typical case at first. + visited_scheduler_nodes: OrderedSet[str] = OrderedSet() + for scheduler_node in node.get_nodes(): + # all users inside same OuterLoopFusedSchedulerNode + assert isinstance(scheduler_node, SchedulerNode) + visited_scheduler_nodes.add(scheduler_node.get_name()) + if ( + scheduler_node.is_reduction() + or len(scheduler_node.get_outputs()) != 1 + ): + continue + + scheduler_buffer = scheduler_node.get_outputs()[0] + if all( + user.node in node.get_nodes() for user in scheduler_buffer.users + ): + global_buffer = scheduler_buffer.node + assert isinstance(global_buffer, ir.ComputedBuffer) + global_buffer_layout = global_buffer.get_layout() + size_offset = node.outer_loop_fusion_depth - len( + get_call_ranges(scheduler_node) + ) + + def is_all_write_read_contiguous(): + contiguous_index_expr = 0 + stride = 1 + for var, range in reversed( + # pyrefly: ignore [missing-attribute] + scheduler_node._body.var_ranges.items() + ): + contiguous_index_expr += stride * var + stride *= range + # pyrefly: ignore [missing-attribute] + write_index_expr = scheduler_node._body.get_write_expr( + scheduler_buffer.get_name() + ) + + def is_contiguous_index(x): + return x == contiguous_index_expr + + return is_contiguous_index(write_index_expr) and all( + isinstance(user.node, SchedulerNode) + and is_contiguous_index( + user.node._body.get_read_expr( + scheduler_buffer.get_name() + ), + ) + for user in scheduler_buffer.users + ) + + if not ( + global_buffer_layout.is_contiguous() + and is_all_write_read_contiguous() + ): + continue + # Local Buffer is a view of global buffer + local_buffer_stride: list[int] = [] + stride = global_buffer_layout.stride[-1] + local_buffer_size = get_call_ranges(scheduler_node)[ + size_offset: + ] + for sz in reversed(local_buffer_size): + local_buffer_stride.insert(0, stride) + stride *= sz + local_buffer_layout = ir.FixedLayout( + global_buffer_layout.device, + global_buffer_layout.dtype, + local_buffer_size, + local_buffer_stride, + ) + + def try_share_local_buffer(local_buffer_layout, local_buffers): + for local_buf in local_buffers: + if local_buffer_layout == local_buf.layout and all( + all( + user.node.get_name() in visited_scheduler_nodes + for user in V.graph.scheduler.name_to_buf[ + global_buffer.name + ].users + ) + for global_buffer in local_to_global_buffers[ + local_buf.name + ] + if global_buffer.name is not None + ): + return local_buf + return None + + local_buf_prefix = "local_buffer_data" + # Share existing local buffer + local_buffer_used = try_share_local_buffer( + local_buffer_layout, local_buffers + ) + if not local_buffer_used: + # Create new local buffer + local_buffer_used = ir.Buffer( + name=f"{local_buf_prefix}_{len(local_buffers)}", + layout=local_buffer_layout, + ) + local_buffers.append(local_buffer_used) + local_to_global_buffers[local_buffer_used.name] = [] # type: ignore[index] + # pyrefly: ignore [index-error] + local_to_global_buffers[local_buffer_used.name].append( + global_buffer, + ) + + with LocalBufferContext(kernel_group.args) as scope: + if len(local_buffers) > 0: + for local_buffer in local_buffers: + assert local_buffer.name is not None + scope.add_local_buffer( + local_buffer, local_to_global_buffers[local_buffer.name] + ) + for _node in node.get_outer_nodes(): + assert isinstance(_node, (FusedSchedulerNode, SchedulerNode)) + cpp_kernel_proxy = self.kernel_proxy_cls(kernel_group) + cpp_kernel_proxy.codegen_nodes(_node.get_nodes()) # type: ignore[arg-type] + cpp_kernel_proxy_list.append(cpp_kernel_proxy) + nodes_list.append(_node.get_nodes()) # type: ignore[arg-type] + + if not node.check_outer_fusion_loop_level_attr( + cpp_kernel_proxy_list, node.outer_loop_fusion_depth + ): + for removed_buffer in scope.removed_buffers: + # Restore the removed buffers by this context before + # fallback to codegen without using Local Buffer + V.graph.removed_buffers.remove(removed_buffer) + return False + metrics.cpp_outer_loop_fused_inner_counts.append( + metrics.CppOuterLoopFusedCount( + len(cpp_kernel_proxy_list), + local_buffer_number=len(scope.local_buffers), + ) + ) + outer_fusion_cpp_kernel_proxy = node.merge_outer_fusion_kernels( + cpp_kernel_proxy_list, + ) + kernel_group.finalize_kernel( + outer_fusion_cpp_kernel_proxy, + [*itertools.chain.from_iterable(nodes_list)], + ) + + return True + + if not try_outer_loop_fusion_with_local_buf(node): + # Reset generated_cpp_vec_kernel_count to codegen again + metrics.generated_cpp_vec_kernel_count = generated_cpp_vec_kernel_count + cpp_kernel_proxy_list.clear() + nodes_list.clear() + # Similar as comment in + # https://github.com/pytorch/pytorch/blob/469383755fe416eb1c41fa724762ad3eaecdff07/torch/_inductor/codegen/cpp.py#L3269-L3272 + # Kernels share the same global contexts like V.graph.wrapper_code, V.kernel.args. + with torch._inductor.config.patch(inplace_buffers=False): + for _node in node.get_outer_nodes(): + assert isinstance(_node, (FusedSchedulerNode, SchedulerNode)) + _nodes: list[SchedulerNode] = _node.get_nodes() # type: ignore[assignment] + cpp_kernel_proxy = self.kernel_proxy_cls(kernel_group) + cpp_kernel_proxy.codegen_nodes(_nodes) + kernel_group.finalize_kernel(cpp_kernel_proxy, _nodes) + + def codegen_node( + self, + node: Union[OuterLoopFusedSchedulerNode, FusedSchedulerNode, SchedulerNode], + ): + """ + Turn an set of pre-fused nodes into a C++ kernel. + """ + kernel_group = self.kernel_group + + if isinstance(node, OuterLoopFusedSchedulerNode): + self.codegen_outer_loop_node(node) + else: + nodes: list[SchedulerNode] = node.get_nodes() # type: ignore[assignment] + nodes = self.try_loop_split(nodes) + cpp_kernel_proxy = self.kernel_proxy_cls(kernel_group) + cpp_kernel_proxy.codegen_nodes(nodes) + kernel_group.finalize_kernel(cpp_kernel_proxy, nodes) + + args_num = self._get_scheduled_num_args() + if args_num > CppScheduling.MAX_FUSED_KERNEL_ARGS_NUM: + self._set_flush_status(True) + + def is_cpp_template(self, node: BaseSchedulerNode) -> bool: + return isinstance(node, SchedulerNode) and isinstance( + node.node, ir.CppTemplateBuffer + ) + + def codegen_template( + self, + template_node: BaseSchedulerNode, + epilogue_nodes: Sequence[BaseSchedulerNode], + prologue_nodes: Sequence[BaseSchedulerNode], + ): + """ + Codegen a CPP template, possibly with fused epilogues + """ + assert not prologue_nodes + + # remove MultiOutput from epilogue_nodes + epilogue_nodes = [ + epilogue_node + for epilogue_node in epilogue_nodes + if isinstance(epilogue_node, (SchedulerNode, FusedSchedulerNode)) + ] + # The counter cpp_templated_kernel_counter is used for verifying if a + # a templated kernel was successfully compiled in a UT + counters["inductor"]["cpp_templated_kernel_counter"] += 1 + counters["inductor"]["cpp_epilogue_fusion_counter"] += len(epilogue_nodes) + assert self.is_cpp_template(template_node), ( + "Template node passed to CppScheduler.codegen_template must be a SchedulerNode that wraps a CppTemplateBuffer" + ) + template_node = cast(SchedulerNode, template_node) + _, (_, rnumel) = template_node.group + assert rnumel == () + ctb: ir.CppTemplateBuffer = cast(ir.CppTemplateBuffer, template_node.node) + epilogue_ir_nodes: list[Optional[ir.Operation]] = [ + n.node for n in epilogue_nodes + ] + assert all(isinstance(n, ir.ComputedBuffer) for n in epilogue_ir_nodes), ( + "Epilogue nodes must all be instances of ir.ComputedBuffer" + ) + + def template_buffer_has_other_users( + template_buffer, outputs_by_name, epilogue_nodes + ): + if not epilogue_nodes: + return False + + assert template_buffer.get_name() in outputs_by_name + users = outputs_by_name[template_buffer.get_name()].users + return not all( + isinstance(user.node, BaseSchedulerNode) + and user.node.node in epilogue_nodes + for user in users + ) + + flag_template_buffer_has_other_users = template_buffer_has_other_users( + ctb, template_node.outputs_by_name, epilogue_ir_nodes + ) + kernel, render = ctb.make_kernel_render( # type: ignore[misc] + ctb, + flag_template_buffer_has_other_users=flag_template_buffer_has_other_users, + epilogue_nodes=epilogue_ir_nodes, + ) + with kernel: + if not is_multi_outputs_template(template_node.node): + template_node.mark_run() # type: ignore[attr-defined] + for node in epilogue_nodes: + node.mark_run() # type: ignore[attr-defined] + src_code = render() + + with V.set_kernel_handler(kernel): + node_schedule = [template_node, *epilogue_nodes] + kernel_name = self.define_kernel(src_code, node_schedule, kernel.args) + + if is_multi_outputs_template(template_node.node): + # For multi outputs template, allocate buffers for each output after the epilogue + # codegen to which determines if the buffer has been removed. + assert len(template_node.outputs) == 1, ( + "Multi outputs template should be with 1 output template buffer of MultiOutputLayout" + ) + for user in template_node.outputs[0].users: + assert isinstance(user.node, ExternKernelSchedulerNode), ( + "Multi outputs template should be with ExternKernelSchedulerNode" + ) + assert isinstance(user.node.node, ir.MultiOutput), ( + "Multi outputs template has multi users with MultiOutput" + ) + user.node.mark_run() + + self.codegen_comment(node_schedule, kernel_name) + kernel.call_kernel(kernel_name, ctb) + V.graph.removed_buffers |= kernel.removed_buffers + self.free_buffers_in_scheduler() + + def _get_scheduled_num_args(self): + return self.kernel_group.get_num_args() + + def ready_to_flush(self): + return self._ready_to_flush + + def codegen_sync(self): + pass + + def define_kernel(self, src_code, nodes, kernel_args=None): + wrapper = V.graph.wrapper_code + if src_code in wrapper.src_to_kernel: + kernel_name = wrapper.src_to_kernel[src_code] + else: + fused_name = ( + get_fused_kernel_name(nodes, config.cpp.descriptive_names) + if config.cpp.descriptive_names + else "" + ) + kernel_name = "_".join(["cpp", fused_name, wrapper.next_kernel_suffix()]) + wrapper.src_to_kernel[src_code] = kernel_name + kernel_decl_name = kernel_name if V.graph.cpp_wrapper else "kernel" + src_code = src_code.replace(str(Placeholder.KERNEL_NAME), kernel_decl_name) + src_code = src_code.replace(str(Placeholder.DESCRIPTIVE_NAME), kernel_name) + # TODO(voz): Ostensibly, we should not need this. But there are cases where C++ codegen does + # not use BracesBuffer, so we have no good indicator of a C++ buffer atm. + src_code = src_code.replace("#pragma CMT", "//") + + # Get the lines in the source code representing the function definition, + # excluding the first line including cpp_prefix.h. + first_char = src_code.rfind('extern "C"') + last_char = src_code.find(")", first_char) + if _IS_WINDOWS: + # get_export_declaration introduced one more ')' in Windows + last_char = src_code.find(")", last_char + 1) + kernel_definition = f"{src_code[first_char : last_char + 1]};\n" + + compile_wrapper = IndentedBuffer() + args = self.kernel_group.args if kernel_args is None else kernel_args + _, _, arg_types = args.cpp_argdefs() + if not V.graph.cpp_wrapper: + compile_wrapper.writeline( + f"async_compile.cpp_pybinding({arg_types!r}, r'''" + ) + compile_wrapper.splice(src_code, strip=True) + if not V.graph.cpp_wrapper: + compile_wrapper.writeline("''')") + wrapper.define_kernel( + kernel_name, + compile_wrapper.getvalue(), + gpu=False, + cpp_definition=kernel_definition, + ) + return kernel_name + + def flush(self): + src_code = self.kernel_group.codegen_group() + if src_code: + kernel_name = self.define_kernel( + src_code, self.kernel_group.scheduled_nodes + ) + self.codegen_comment(self.kernel_group.scheduled_nodes, kernel_name) + if config.cpp.enable_kernel_profile: + V.graph.wrapper_code.write_kernel_context_guard_begin() + V.graph.wrapper_code.write_kernel_context_guard( + kernel_name, + self.kernel_group.scheduled_nodes, # type: ignore[arg-type] + ) + self.kernel_group.call_kernel(V.graph.wrapper_code, kernel_name) + if config.cpp.enable_kernel_profile: + V.graph.wrapper_code.write_kernel_context_guard_end() + + self.reset_kernel_group() + self._set_flush_status(False) + + def codegen_comment(self, node_schedule, kernel_name=None): + # below add provenance tracing info for cpu CppKernel types + wrapper = V.graph.wrapper_code + debug_handle = set_kernel_post_grad_provenance_tracing( + node_schedule, # type: ignore[arg-type] + # pyrefly: ignore [bad-argument-type] + kernel_name, + ) + wrapper.write_provenance_debug_handle(kernel_name, debug_handle) + + +class KernelGroup: + def __init__(self): + super().__init__() + self.args = KernelArgs() + self.loops_code = BracesBuffer() + self.ws = WorkSharing(self.loops_code) + self.stack = contextlib.ExitStack() + self.stack.enter_context(self.ws) + self.scheduled_nodes = [] + + def new_kernel(self, cls, *args): + return cls(self.args, parallel_num_threads(), *args) + + def finalize_kernel(self, new_kernel, nodes): + self.scheduled_nodes += nodes + code = self.loops_code + ws = self.ws + new_kernel.codegen_loops(code, ws) + + def get_num_args(self): + arg_defs, _call_args, _arg_types = self.args.cpp_argdefs() + args_num = len(arg_defs) + return args_num + + def codegen_group(self, name=None) -> str: + self.stack.close() + if not self.scheduled_nodes: + return "" + code = BracesBuffer() + # 1. Include header files + # TODO: support kernel profile on other platforms + enable_kernel_profile = config.cpp.enable_kernel_profile and sys.platform in [ + "linux", + "win32", + ] + if enable_kernel_profile: + code.writelines(["#include "]) + code.writeline("#include ") + + # 2. Function definition + kernel_decl_name = str(Placeholder.KERNEL_NAME) if name is None else name + kernel_name = str(Placeholder.DESCRIPTIVE_NAME) if name is None else name + arg_defs, _, _ = self.args.cpp_argdefs() + arg_defs = ",\n".ljust(25).join(arg_defs) + func_export_decl = get_export_declaration() + inline_attr = ( + "C10_ALWAYS_INLINE_ATTRIBUTE" if config.cpp.force_inline_kernel else "" + ) + code.writeline( + f'extern "C" {func_export_decl} void {inline_attr} {kernel_decl_name}({arg_defs})' + ) + + # 3. Function body + with code.indent(): + if enable_kernel_profile: + graph_id = V.graph.graph_id + prefix = "graph_" + str(graph_id) + "_" if graph_id is not None else "" + code.writelines( + [ + ( + "torch::aot_inductor::RAIIAtenRecordFunctionHandle " + f'record_{prefix + kernel_name}_("{prefix + kernel_name}", nullptr);' + ) + ] + ) + for old, new in self.args.aliases(): + code.writeline(f"auto {old} = {new};") + code.splice(self.loops_code) + return code.getvalue() + + def call_kernel(self, wrapper, kernel_name): + _, call_args, arg_types = self.args.cpp_argdefs() + wrapper.generate_kernel_call( + kernel_name, + call_args, + triton=False, + arg_types=arg_types, + ) + + +class WorkSharing: + def __init__(self, code): + self.code = code + self.in_parallel = False + self.num_threads = None + self.stack = contextlib.ExitStack() + + def parallel(self, threads): + if self.in_parallel and threads != self.num_threads: + # wrong number of threads + self.close() + if not self.in_parallel: + self.num_threads = threads + self.in_parallel = True + if config.cpp.dynamic_threads: + self.code.writeline("#pragma omp parallel") + else: + self.code.writeline(f"#pragma omp parallel num_threads({threads})") + self.stack.enter_context(self.code.indent()) + self.code.writeline( + "int tid = omp_get_thread_num();", + ) + + def single(self): + if self.in_parallel: + self.code.writeline("#pragma omp single") + return self.in_parallel + + def close(self): + self.stack.close() + self.in_parallel = False + + def __enter__(self): + self.stack.__enter__() + return self + + def __exit__(self, exc_type, exc_val, exc_tb): + self.stack.__exit__(exc_type, exc_val, exc_tb) + + +@dataclasses.dataclass +class LoopLevel: + var: Optional[sympy.Expr] = None + size: Optional[sympy.Expr] = None + offset: sympy.Expr = sympy.S.Zero + # Note [tiled_size] + # We may do loop-tiling at this loop level. + # When var is in [offset, tiled_size), we will perform the vectorization kernel. + # When var is in [tiled_size, size), we will perform the scalar or masked vectorization kernel. + # for (var = offset; var < size; var += steps) { + # if (var >= offset && var < tiled_size) vec_loop_body(); + # if (var >= tiled_size && var < size) scalar_or_maskvec_loop_body(); + # } + tiled_size: sympy.Expr = sympy.S.Zero + steps: sympy.Expr = sympy.S.One + parallel: int = 0 + simd_omp: bool = False + simd_vec: bool = False + collapsed: bool = False + is_reduction: bool = False + + def __post_init__(self): + # Regarding the C++/OpenMP backend, `cpu_vec_isa.pick_vec_isa()` to check + # vectorization ISA is a time-consuming and one-shot operation. It leads + # to taking a longer time to import `codegen.cpp` package because the + # `LoopLevel` of the package is decorated by `@dataclasses.dataclass` while + # the decorator will invoke `cpu_vec_isa.pick_vec_isa()` to initialize the + # `simd_nelements` of the `LoopLevel`. It might introduce additional compilation + # overhead to the Triton backend. Therefore, we moved the `simd_nelements` to + # `__post_init__` + picked_vec_isa: cpu_vec_isa.VecISA = cpu_vec_isa.pick_vec_isa() + self.simd_nelements: int = picked_vec_isa.nelements() if picked_vec_isa else 0 + + def tile(self, factor): + sympy_factor = sympy.Integer(factor) + loop = LoopLevel(self.var, self.size) + loop.steps = sympy_factor + loop.simd_vec = True + loop.tiled_size = FloorDiv(loop.size, sympy_factor) * sympy_factor + loop.parallel = self.parallel + loop.collapsed = False + loop.is_reduction = self.is_reduction + return loop + + def lines(self): + offset_expr = cexpr_index(self.offset) + size_expr = cexpr_index(self.size) + if config.cpp.no_redundant_loops and offset_expr == size_expr: + return None + simd = ( + f"simd simdlen({self.simd_nelements}) " + if self.simd_omp and self.simd_nelements > 1 + else "" + ) + if self.parallel: + # TODO(jansel): look into chunk size and other schedules + line1 = "#pragma omp for" + if self.parallel > 1: + line1 += f" collapse({self.parallel})" + if self.simd_omp: + line1 = line1.replace(" for ", f" for {simd}") + elif self.simd_vec: + line1 = "" + elif self.simd_omp: + line1 = f"#pragma omp {simd}" + elif not self.is_reduction and cpp_builder.is_gcc(): + line1 = "#pragma GCC ivdep" + else: + line1 = "" + offset_str = f"{INDEX_TYPE} {self.var}={offset_expr}" + size_str = f"{self.var}<{size_expr}" + if self.steps.is_number: + steps_str = f"{self.var}+={cexpr_index(self.steps)}" + else: + # If the step size is 0, change it to 1 because a step size of 0 + # will cause floating point exception (core dump) during parallelization. + steps_str = ( + f"{self.var}+=({cexpr_index(self.steps)} == 0 ? " + f"1 : {cexpr_index(self.steps)})" + ) + line2 = f"for({offset_str}; {size_str}; {steps_str})" + if self.collapsed or not line1: + return [line2] + return [line1, line2] + + +@dataclasses.dataclass +class LoopNest: + """ + A loop-nest-like structure. It is built with the `build` method + as a loop nest and then will perform loop-tiling at some depth. + + A typical case is for vectorization, where we typically do loop-tiling + at the innermost loop level. A more complicated case is when we do + 2D tiling at both the innermost and outer levels. + """ + + loops: Optional[list[LoopLevel]] = None + kernel: Optional[CppKernel] = None + + @staticmethod + def build(kernel: CppKernel): + """Build a LoopNest with the given `kernel` as the leaf""" + itervars = kernel.itervars + ranges = kernel.ranges + reduction_depth = kernel.reduction_depth + assert reduction_depth is not None + + loops: Optional[list[LoopLevel]] = None + for loop_idx, (var, size) in enumerate(zip(itervars, ranges)): + loop = LoopLevel(var, size) + if not loops: + loops = [loop] + else: + loops.append(loop) + if loop_idx >= reduction_depth: + loop.is_reduction = kernel.is_reduction + + loop_nest = LoopNest(loops) + return loop_nest + + def __bool__(self): + return bool(self.loops) + + @cache_on_self + def max_parallel_depth(self): + """ + Maximal allowed depth for parallelism: All reduction or non-reduction levels. + When the range of the first inner loop beyond the maximum parallel depth is much + larger than the range of all outer loops within the maximum parallel depth, + change the starting depth of parallelism to the first inner loop and recalculate + the maximum parallel depth. + """ + if self.loops is None: + return ParallelDepth(parallel_depth=0, start_depth=0) + + start_depth = 0 + max_depth = 0 + is_reduction = self.loops[0].is_reduction + num_steps = sympy.Integer(1) + for loop in self.loops: + if loop.is_reduction != is_reduction: + break + num_steps = num_steps * FloorDiv(loop.size, loop.steps) + max_depth += 1 + + def get_simd_vec_depth(loops): + # Return the first loop level which is simd_vec + for i, loop in enumerate(loops): + if loop.simd_vec: + return i + return None + + simd_vec_depth = get_simd_vec_depth(self.loops) + + def has_scalar_kernel(loop_nest: LoopNest): + assert isinstance(loop_nest.kernel, CppKernelProxy) + return any( + not isinstance(kernel, CppVecKernel) + for kernel in loop_nest.kernel.kernels + ) + + # When the number of steps of the first inner loop is much larger than the number of steps of + # all outer loops, change `start_depth` to the first inner loop and recalculate `max_depth`. + if ( + max_depth < len(self.loops) + and isinstance(num_steps, sympy.Integer) + and isinstance(self.loops[max_depth].size, sympy.Integer) + and num_steps * 300 + < FloorDiv(self.loops[max_depth].size, self.loops[max_depth].steps) + and not ( + # Disable parallel reduction under the vec loop + simd_vec_depth is not None + and max_depth > simd_vec_depth + and self.loops[max_depth].is_reduction + and has_scalar_kernel(self) + ) + ): + start_depth = max_depth + max_depth = 0 + is_reduction = self.loops[start_depth].is_reduction + for i in range(start_depth, len(self.loops)): + if self.loops[i].is_reduction != is_reduction: + break + max_depth += 1 + return ParallelDepth(parallel_depth=max_depth, start_depth=start_depth) + + def mark_parallel(self, par_depth): + assert par_depth.parallel_depth <= self.max_parallel_depth().parallel_depth, ( + "Parallel depth cannot exceed the maximal allowed parallel depth" + ) + assert self.loops is not None + assert len(self.loops) >= par_depth.parallel_depth + loop = self.loops[par_depth.start_depth] + loop.parallel = par_depth.parallel_depth + if loop.is_reduction: + # pyrefly: ignore [bad-assignment] + metrics.parallel_reduction_count += 1 + for i in range(par_depth.start_depth + 1, par_depth.parallel_depth): + self.loops[i].collapsed = True + + def tile(self, depth, factor): + """ + Do loop-tiling at the `depth` level with `factor`. + for (x0 = 0; x0 < x0_end; x0++) + -> + for (x0 = 0; x0 < x0_end; x0 += factor) + See details in Note [tiled_size]. + """ + assert self.loops + self.loops[depth] = self.loops[depth].tile(factor) + return self.loops[depth] + + def get_kernel(self) -> CppKernel: + assert self.kernel + return self.kernel + + def set_kernel(self, kernel): + self.kernel = kernel + + def from_loop_level(self, level: int): + assert self.loops + assert len(self.loops) >= level + loops = None if level == len(self.loops) else self.loops[level:] + return LoopNest(loops, self.kernel) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_bmm_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_bmm_template.py new file mode 100644 index 0000000000000000000000000000000000000000..f4a7c2ef1640690bf751e08b1c1e4d33a3c147b4 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_bmm_template.py @@ -0,0 +1,263 @@ +# mypy: allow-untyped-defs +import contextlib +import itertools +from collections.abc import Callable +from typing import Any, Optional +from unittest.mock import patch + +import sympy + +from .. import ir +from ..select_algorithm import PartialRender +from ..virtualized import V +from .common import ArgName +from .cpp_gemm_template import CppGemmTemplate, GEMM_TEMPLATE +from .cpp_micro_gemm import LayoutType +from .cpp_template_kernel import CppTemplateKernel +from .cpp_utils import DTYPE_TO_CPP, GemmBlocking + + +# We pass all sizevars present in BY to the GEMM templates so variables are not renamed in the BMM definition +GEMM_SINGLE_THREAD_MM_STUB = r""" +{{kernel.def_kernel( + inputs={"X": X, "W": W}, + outputs={"Y": Y_2d}, + aliases=aliases, + function_name=kernel_name+"_single_thread_mm", + extra_sizevars=BY_sizevars + [b_index], + placeholder="")}}""" + +GEMM_THREADED_MM_STUB = r""" +{{kernel.def_kernel( + inputs={"X": X, "W": W}, + outputs={"Y": Y_2d}, + aliases=aliases, + function_name=kernel_name+"_threaded_mm", + extra_sizevars=BY_sizevars + [b_index], + placeholder="")}}""" + +BMM_TEMPLATE = r""" +{{ template.codegen_microkernel_def() }} +{{ template.codegen_single_thread_gemm() }} +{{ template.codegen_multi_thread_gemm() }} + +extern "C" +{{kernel.def_kernel(inputs={"X": BX, "W": BW}, outputs={"Y": BY}, aliases=aliases)}} +{ + const int64_t B = {{kernel.size(BY_2d, 0)}}; + {%- if num_threads > 1 %} + constexpr int64_t num_threads = {{num_threads}}; + int64_t B_single_thread_block = (B / num_threads) * num_threads; + + #pragma omp parallel for num_threads({{num_threads}}) + {%- else %} + int64_t B_single_thread_block = B; + {%- endif %} + for (int64_t b_start = 0; b_start < B_single_thread_block; ++b_start) { + {{template.get_gemm_function_call( + kernel, + kernel_name+"_single_thread_mm", + "", + b_index="b_start", + )}} + } + for (int64_t b_start = B_single_thread_block; b_start < B; ++b_start) { + {{template.get_gemm_function_call( + kernel, + kernel_name+"_threaded_mm", + "", + b_index="b_start", + )}} + } +} +""" + + +class CppBmmTemplate(CppGemmTemplate): + def __init__( + self, + input_nodes, + layout: ir.Layout, + num_threads: int, + register_blocking: GemmBlocking, + beta=1, + alpha=1, + has_bias=False, + epilogue_creator: Optional[Callable[[ir.Buffer], ir.Pointwise]] = None, + should_block_weights: bool = False, + name="bmm", + ): + """ + In order to simplify the implementation and increase code reuse, the BMM template implements + two versions of the GEMM kernel: a single-threaded version and a multi-threaded version. + GEMM kernels are called in a loop over the batch dimension, with single-threaded GEMM calls + for all but the last (B % num_threads), which are handled by the multi-threaded GEMM kernel. + + We use an extra sizevar `b_index` to index the batch dimension, which we pass into the GEMM + template as a sympy.Symbol. This allows us to slice the 3D batch tensors in the GEMM template + without any changes to the GEMM template itself. + """ + super().__init__( + input_nodes, + layout, + num_threads, + register_blocking, + beta=beta, + alpha=alpha, + has_bias=has_bias, + epilogue_creator=epilogue_creator, + should_block_weights=should_block_weights, + name=name, + ) + self.b_index = sympy.Symbol("s_b_index", integer=True, nonnegative=True) + + @staticmethod + def get_padded_size(n, block_n, k, should_block_weight): + if should_block_weight: + # Tensor is constant or not contiguous, so we will pad and block + new_size, padded_n = CppGemmTemplate.get_padded_size( + n, block_n, k, should_block_weight + ) + # Add the new batch dimension + new_size.insert(0, -1) + return new_size, padded_n + else: + new_size = [-1, k, n] + return new_size, n + + @staticmethod + def check_if_block_weight(W, micro_gemm): + assert isinstance(W, ir.IRNode) + _, n = W.get_size()[-2:] + result = ( + not W.get_layout().is_contiguous() + or W.get_name() in V.graph.constants + or ( + n % micro_gemm.register_blocking.block_n != 0 + and micro_gemm.get_b_layout != LayoutType.NORMAL + ) + ) + return result + + def get_gemm_function_call( + self, + kernel: CppTemplateKernel, + function_name: str, + placeholder: str, + b_index: str, + ) -> str: + """ + Similar to 'def_kernel' in cpp_template_kernel, but instead of generating a function definition, + generate a function call for the GEMM kernel. + Args: + placeholder: The string to replace the function call with + b_index: The index for slicing the 3D batch tensors + """ + + def hook(): + arg_defs, call_args, _, _ = kernel.args.python_argdefs() + for i, buf in enumerate(call_args): + if buf == self.b_index: + arg_defs[i] = ArgName(b_index) + call = f"{function_name}({', '.join(x.full_name() for x in arg_defs)});" + return call + + assert placeholder not in kernel.render_hooks + kernel.render_hooks[placeholder] = hook + return placeholder + + def get_default_reindexers(self, epilogue_nodes): + def reindexer(args): + # if epilogue nodes exist, they have 3D ranges but args are 2D, so add 0 index + return [self.b_index] + args + + return [reindexer] * len(epilogue_nodes) + + def get_options( + self, + kernel: CppTemplateKernel, + template_buffer_node: Optional[ir.CppTemplateBuffer] = None, + flag_template_buffer_has_other_users: Optional[bool] = None, + epilogue_nodes: Optional[list[ir.IRNode]] = None, + **kwargs, + ) -> dict[str, Any]: + options = super().get_options( + kernel=kernel, + template_buffer_node=template_buffer_node, + flag_template_buffer_has_other_users=flag_template_buffer_has_other_users, + epilogue_nodes=epilogue_nodes, + **kwargs, + ) + + BX, BW, BY = options["X"], options["W"], options["Y"] + options["BX"], options["BW"], options["BY"] = BX, BW, BY + options["BY_2d"] = options["Y_2d"] + for kword in ["X", "W", "GemmOut", "Y_2d"]: + options[kword] = kernel.select(options[kword], 0, self.b_index) + for kword in ["X", "W", "Y_2d"]: + options[kword + "_dtype"] = DTYPE_TO_CPP[options[kword].dtype] + options["b_index"] = self.b_index + options["BY_sizevars"] = [ + s + for sym in itertools.chain(BY.get_size(), BY.get_stride()) + if isinstance(sym, sympy.Expr) + for s in sym.free_symbols + ] + options["kernel_name"] = kernel.kernel_name + + return options + + def render( # type: ignore[override, return] + self, + kernel: CppTemplateKernel, + template_buffer_node: Optional[ir.CppTemplateBuffer] = None, + flag_template_buffer_has_other_users: Optional[bool] = None, + epilogue_nodes: Optional[list[ir.IRNode]] = None, + **kwargs, + ) -> str: + options = self.get_options( + kernel=kernel, + template_buffer_node=template_buffer_node, + flag_template_buffer_has_other_users=flag_template_buffer_has_other_users, + epilogue_nodes=epilogue_nodes, + **kwargs, + ) + self.render_options = options + + with contextlib.ExitStack() as stack: + for buf in options["fake_buffers"]: + stack.enter_context( + patch.object(V.graph, "get_dtype", self._fake_get_dtype(buf)) + ) + result = self._template_from_string(BMM_TEMPLATE).render(**options) + + # Finalize the function definitions for the gemm routines + sub_mm_hooks = { + name: hook + for name, hook in kernel.render_hooks.items() + if "FOR_BMM" in name + } + result = PartialRender(result, sub_mm_hooks).finalize_all() + for name in sub_mm_hooks: + del kernel.render_hooks[name] + del kernel.args.sizevars[options["b_index"]] + return result + + def codegen_single_thread_gemm(self): + stub = self._template_from_string(GEMM_SINGLE_THREAD_MM_STUB).render( + self.render_options + ) + return stub + self._template_from_string(GEMM_TEMPLATE).render( + {**self.render_options, "num_threads": 1} + ) + + def codegen_multi_thread_gemm(self): + stub = self._template_from_string(GEMM_THREADED_MM_STUB).render( + self.render_options + ) + return stub + self._template_from_string(GEMM_TEMPLATE).render( + self.render_options + ) + + def codegen_gemm_stub_def(self): + return "" diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_flex_attention_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_flex_attention_template.py new file mode 100644 index 0000000000000000000000000000000000000000..a1ceecf7f7c9ea8081660c21a8ddf96254c98a68 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_flex_attention_template.py @@ -0,0 +1,1090 @@ +# mypy: allow-untyped-defs +import contextlib +import logging +import re +from typing import Optional +from unittest.mock import patch + +import sympy + +import torch +import torch.utils + +from ...utils._ordered_set import OrderedSet +from .. import ir +from ..ir import TensorBox +from ..select_algorithm import DataProcessorTemplateWrapper +from ..utils import parallel_num_threads +from ..virtualized import V +from .cpp_template import CppTemplate +from .cpp_utils import GemmBlocking + + +log = logging.getLogger(__name__) + +# TODO: reuse cpp codegen to generate below pointwise/reduction kernels +SOFTMAX_FUSIONS = r""" +// 1) out = exp(a - val) +// 2) val = sum(out) +template +inline void {{kernel_name}}_exp_reduce_sum_fusion_kernel( + T1* a, + const int& size, + T2* out, + T1& val) { + auto vec_size = at::vec::Vectorized::size(); + auto vec_max = at::vec::Vectorized(val); + T1 tmp_sum = 0; + auto vec_tmp_sum = at::vec::Vectorized(tmp_sum); + for (long i = 0; i < vec_size * (size / vec_size); i += vec_size) { + auto tmp0 = at::vec::Vectorized::loadu(a + i); + auto tmp1 = tmp0 - vec_max; + auto tmp2 = tmp1.exp_u20(); + vec_tmp_sum += tmp2; + at::native::_store(out + i, tmp2); + } + tmp_sum = at::vec::vec_reduce_all( + [](at::vec::Vectorized& x, at::vec::Vectorized& y) { + return x + y; + }, + vec_tmp_sum); + for (long i = vec_size * (size / vec_size); i < size; i++) { + auto tmp0 = a[i]; + auto tmp1 = tmp0 - val; + auto tmp2 = exp(tmp1); + tmp_sum += tmp2; + out[i] = tmp2; + } + val = tmp_sum; +} + +// 1) out = a * scale +// 2) max = max(out) +template +inline void {{kernel_name}}_mul_reduce_max_fusion_kernel( + const scalar_t* a, + const scalar_t& scale, + const int& size, + scalar_t* out, + scalar_t& max) { + auto vec_size = at::vec::Vectorized::size(); + auto vec_scale = at::vec::Vectorized(scale); + scalar_t tmp_max = -std::numeric_limits::infinity(); + auto vec_tmp_max = at::vec::Vectorized(tmp_max); + for (long i = 0; i < vec_size * (size / vec_size); i += vec_size) { + auto tmp0 = at::vec::Vectorized::loadu(a + i); + auto tmp1 = tmp0 * vec_scale; + vec_tmp_max = at::vec::maximum(vec_tmp_max, tmp1); + at::native::_store(out + i, tmp1); + } + for (long i = vec_size * (size / vec_size); i < size; i++) { + auto tmp0 = a[i]; + auto tmp1 = tmp0 * scale; + tmp_max = std::max(tmp_max, tmp1); + out[i] = tmp1; + } + max = std::max( + tmp_max, + at::vec::vec_reduce_all( + [](at::vec::Vectorized& x, at::vec::Vectorized& y) { + return at::vec::maximum(x, y); + }, + vec_tmp_max)); +} + +template +static inline scalar_t* {{kernel_name}}_conditional_data_ptr(scalar_t* ptr, scalar_t* ptr2) { + TORCH_CHECK(ptr2 == nullptr); + return ptr; +} + +template , int> = 0> +static inline scalar_t* {{kernel_name}}_conditional_data_ptr(float* ptr, scalar_t* ptr2) { + return ptr2; +} + +template +inline void {{kernel_name}}_fill_stub(scalar_t* data, scalar_t val, int64_t size) { + using Vec = at::vec::Vectorized; + Vec data_vec = Vec(val); + int64_t d = 0; + for (; d < size - (size % Vec::size()); d += Vec::size()) { + data_vec.store(data + d); + } + #if !defined(_MSC_VER) && !defined(COMPILING_FOR_MIN_SIZE) + # pragma unroll + #endif + for (; d < size; d++) { + data[d] = val; + } +} + +// out = a * scale +template +inline void {{kernel_name}}_mul_scale_kernel( + scalar_t* a, + scalar_t scale, + int64_t size) { + auto vec_size = at::vec::Vectorized::size(); + auto vec_scale = at::vec::Vectorized(scale); + for (int64_t i = 0; i < vec_size * (size / vec_size); i += vec_size) { + auto tmp0 = at::vec::Vectorized::loadu(a + i); + auto tmp1 = tmp0 * vec_scale; + at::native::_store(a + i, tmp1); + } + for (int64_t i = vec_size * (size / vec_size); i < size; i++) { + auto tmp0 = a[i]; + auto tmp1 = tmp0 * scale; + a[i] = tmp1; + } +} + +""" + +BRGEMM_PACK_FUNCTIONS = r""" +template +inline void {{kernel_name}}_copy_value_with_pad( + const scalar_t* value_ptr, + scalar_t* dst_ptr, + int64_t rows, + int64_t cols, + int64_t prows, + int64_t pcols, + int64_t ldi) { + auto vec_size = at::vec::Vectorized::size(); + int64_t i = 0; + for (; i < rows; i++) { + int64_t j = 0; + for (; j < cols - (cols % vec_size); j += vec_size) { + auto vec_v = + at::vec::Vectorized::loadu(value_ptr + i * ldi + j); + vec_v.store(dst_ptr + i * pcols + j); + } + + if (j < cols) { + auto vec_v = at::vec::Vectorized::loadu( + value_ptr + i * ldi + j, cols - j); + vec_v.store(dst_ptr + i * pcols + j, cols - j); + } + + // col padding + auto psize = pcols - cols; + if (psize > 0) { + auto zero_vec = at::vec::Vectorized(0); + int64_t pj = 0; + for (; pj < psize - (psize % vec_size); pj += vec_size) { + zero_vec.store(dst_ptr + i * pcols + cols + pj); + } + if (pj < psize) { + zero_vec.store(dst_ptr + i * pcols + cols + pj, psize - pj); + } + } + } + // row padding + for (; i < prows; i++) { + auto zero_vec = at::vec::Vectorized(0); + int64_t j = 0; + for (; j < pcols - (pcols % vec_size); j += vec_size) { + zero_vec.store(dst_ptr + i * pcols + j); + } + if (j < pcols) { + zero_vec.store(dst_ptr + i * pcols + j, pcols - j); + } + + } +} +""" + +MICRO_GEMM_TEMPLATE = r""" +GEMM_DEFINE +""" + +ALLOCATE_BUFFER = r""" + int64_t {{buffer_name}}_dtype_itemsize = c10::is_reduced_floating_point_v<{{buffer_dtype}}> ? 2 : 4; + auto& {{buffer_name}}_allocator = *at::getCPUAllocator(); + auto {{buffer_name}}_work_data = {{buffer_name}}_allocator.allocate({{buffer_size}}*{{buffer_name}}_dtype_itemsize); + void* {{buffer_name}}_data_ptr = {{buffer_name}}_work_data.get(); + {{buffer_dtype}}* {{buffer_name}} = ({{buffer_dtype}}*){{buffer_name}}_data_ptr; +""" + +FLEX_ATTENTION_TEMPLATE = r""" +{{template.header().getvalue()}} +#include +#include +#include +{{template.codegen_micro_gemm(kernel.kernel_name)}} +{{template.codegen_softmax_fusion(kernel.kernel_name)}} +{{template.codegen_brgemm_pack_function(kernel.kernel_name)}} +{%- set kernel_args = {"query": query, "key": key, "value": value, + "kv_num_blocks": kv_num_blocks, "kv_indices": kv_indices, + "full_kv_num_blocks": full_kv_num_blocks, "full_kv_indices": full_kv_indices } %} +{%- set kernel_args = template.update_kernel_args(kernel_args) %} + +extern "C" +{{kernel.def_kernel(inputs=kernel_args, outputs={"output": output}, extra_sizevars=template.extra_sizevars)}} +{ + {{ kernel.maybe_codegen_profile() }} + int64_t qBlockSize = {{qBlockSize}}; + int64_t kvBlockSize = {{kvBlockSize}}; + int64_t num_thread = {{num_thread}}; + + // dtypes of kernel and internal buffers + using scalar_t = {{kernel.dtype(query)}}; + constexpr bool is_reduced_type = c10::is_reduced_floating_point_v; + using accum_t = at::opmath_type<{{kernel.dtype(query)}}>; + using Vec = at::vec::Vectorized; + accum_t scaling_factor = {{scale}}; + int64_t batchSize = {{kernel.size(query, 0)}}; + int64_t qSize = {{kernel.size(query, 1)}}; + int64_t num_head = {{kernel.size(query, 2)}}; + int64_t headSize = {{kernel.size(query, 3)}}; + int64_t batchSize_k = {{kernel.size(key, 0)}}; + int64_t num_head_k = {{kernel.size(key, 2)}}; + int64_t headSize_v = {{kernel.size(value, 3)}}; + bool is_broadcast_bs_kv = batchSize != batchSize_k; + bool is_broadcast_head_kv = num_head != num_head_k; + int64_t gqa_shards = num_head / num_head_k; + int64_t bs_shards = batchSize / batchSize_k; + + int64_t batchSize_kvi = {{kernel.size(kv_indices, 0)}}; + int64_t num_head_kvi = {{kernel.size(kv_indices, 1)}}; + int64_t block_num_kvi = {{kernel.size(kv_indices, 3)}}; + bool is_broadcast_bs_kvi = batchSize != batchSize_kvi; + bool is_broadcast_head_kvi = num_head != num_head_kvi; + int64_t gqa_shards_kvi = num_head / num_head_kvi; + int64_t bs_shards_kvi = batchSize / batchSize_kvi; + + int64_t kviStrideB = {{kernel.stride(kv_indices, 0)}}; + int64_t kviStrideH = {{kernel.stride(kv_indices, 1)}}; + int64_t kviStrideQ = {{kernel.stride(kv_indices, 2)}}; + + int64_t num_kviStrideB = {{kernel.stride(kv_num_blocks, 0)}}; + int64_t num_kviStrideH = {{kernel.stride(kv_num_blocks, 1)}}; + +{%- if has_full_kv_block %} + int64_t full_kviStrideB = {{kernel.stride(full_kv_indices, 0)}}; + int64_t full_kviStrideH = {{kernel.stride(full_kv_indices, 1)}}; + int64_t full_kviStrideQ = {{kernel.stride(full_kv_indices, 2)}}; + + int64_t full_num_kviStrideB = {{kernel.stride(full_kv_num_blocks, 0)}}; + int64_t full_num_kviStrideH = {{kernel.stride(full_kv_num_blocks, 1)}}; + auto full_kv_indices_data = full_kv_indices; + auto full_kv_num_blocks_data = full_kv_num_blocks; +{%- endif %} + + auto kv_num_blocks_data = kv_num_blocks; + auto kv_indices_data = kv_indices; + + // Strides + int64_t qStrideB = {{kernel.stride(query, 0)}}; + int64_t qStrideM = {{kernel.stride(query, 1)}}; + int64_t qStrideH = {{kernel.stride(query, 2)}}; + int64_t kStrideB = {{kernel.stride(key, 0)}}; + int64_t kStrideN = {{kernel.stride(key, 1)}}; + int64_t kStrideH = {{kernel.stride(key, 2)}}; + int64_t vStrideB = {{kernel.stride(value, 0)}}; + int64_t vStrideN = {{kernel.stride(value, 1)}}; + int64_t vStrideH = {{kernel.stride(value, 2)}}; + int64_t oStrideB = {{kernel.stride(output, 0)}}; + int64_t oStrideM = {{kernel.stride(output, 2)}}; + int64_t oStrideH = {{kernel.stride(output, 1)}}; + + int64_t kvSize = {{kernel.size(key, 1)}}; + + int64_t qSplitSize = qBlockSize; + int64_t kvSplitSize = kvBlockSize; + + + qSplitSize = qSplitSize > qSize ? qSize : qSplitSize; + kvSplitSize = kvSplitSize > kvSize ? kvSize : kvSplitSize; + int64_t qSlice = (qSize + qSplitSize - 1) / qSplitSize; + int64_t kvSlice = (kvSize + kvSplitSize - 1) / kvSplitSize; + int64_t kvTail = (kvSize - 1) % kvSplitSize + 1; + + bool need_pack = false; + // Whether pack is needed for BFloat16/Half + if (is_reduced_type) { + // check platform ability + need_pack = std::is_same_v ? at::native::cpublas::could_pack(at::kBFloat16) + : at::native::cpublas::could_pack(at::kHalf); + } + if (need_pack) { + // When the number of gemm is greater than the number of pack, + // the pack overhead can be overlapped. + int64_t thresh_size = 64; + need_pack = kvSize >= thresh_size && qSize >= thresh_size; + if (need_pack) { + double pack_size = batchSize * num_head * kvSize * headSize; + double qs_per_thread = (batchSize * num_head * qSlice + num_thread - 1) / num_thread; + double gemm_size_per_thread = qs_per_thread * qSplitSize * kvSize * headSize; + need_pack = gemm_size_per_thread / pack_size >= 4; + } + } + // Pad is needed for packing when K is not even + bool headSize_even = headSize % 2 == 0; + int64_t eheadSize = need_pack && !headSize_even ? headSize + 1: headSize; + int64_t ekvSplitSize = need_pack && (kvSplitSize % 2 != 0) ? kvSplitSize + 1 : kvSplitSize; + int64_t ekvTail = need_pack && (kvTail % 2 != 0) ? kvTail + 1 : kvTail; + int64_t kv_padding_size = (kvSize - 1) / kvSplitSize * ekvSplitSize + ekvTail; + + // Allocate per thread temp buf (accumulate type) + int64_t _size_per_thread = + /* qk */ qSplitSize * kvSplitSize + + /* qk_max */ qSplitSize + + /* qk_sum */ qSplitSize + + /* dst */ qSplitSize * headSize_v; + + // Inputs/outputs buffers + const scalar_t* q_data = query; + const scalar_t* k_data = key; + const scalar_t* v_data = value; + scalar_t* out_data = output; + + // Buffers to store accum results, padding query and transpose/packing key/value + {{template.codegen_allocate_buffer("buf_data", "accum_t", "num_thread*_size_per_thread")}} + {{template.codegen_allocate_buffer("buf_reduced_data", "scalar_t", "num_thread*qSplitSize*ekvSplitSize")}} + {{template.codegen_allocate_buffer("key_reorder_ptr", "scalar_t", "batchSize_k*num_head_k*eheadSize*kvSize")}} + {{template.codegen_allocate_buffer("value_reorder_ptr", "scalar_t", "batchSize_k*num_head_k*kv_padding_size*headSize_v")}} + {{template.codegen_allocate_buffer("transpose_buffer_ptr", "scalar_t", "num_thread*kvSplitSize*headSize")}} + {{template.codegen_allocate_buffer("query_padding_ptr", "scalar_t", "num_thread*qSplitSize*eheadSize")}} + if (need_pack) { + // Pack K, V + at::parallel_for(0, batchSize_k * num_head_k * kvSlice, 1, [&](int64_t begin, int64_t end) { + int ompIdx = at::get_thread_num(); + int64_t i = 0, j = 0, l = 0, n = 0; + scalar_t* transpose_ptr = need_pack? transpose_buffer_ptr + ompIdx * kvSplitSize * headSize : nullptr; + at::native::data_index_init(begin, i, batchSize_k, j, num_head_k, l, kvSlice); + for ([[maybe_unused]] auto z : c10::irange(begin, end)) { + n = l * kvSplitSize; + int64_t cur_kvSplitSize = std::min(kvSplitSize, kvSize - n); + auto k_addr = + k_data + i * kStrideB + j * kStrideH + n * kStrideN; + auto v_addr = + v_data + i * vStrideB + j * vStrideH + n * vStrideN; + // transpose [cur_kvSplitSize, headSize] -> [headSize, cur_kvSplitSize] + at::native::utils::transpose( + cur_kvSplitSize, + headSize, + /* src_ptr */ + reinterpret_cast(k_addr), + /* ld_src */ kStrideN, + /* dst */ reinterpret_cast(transpose_ptr), + /* ld_dst */ cur_kvSplitSize); + + // Pack [headSize, cur_kvSplitSize] + at::vec::pack_vnni2( + /* src */ reinterpret_cast(transpose_ptr), + /* dst */ reinterpret_cast(key_reorder_ptr + i * num_head_k * eheadSize * kvSize + + j * eheadSize * kvSize + n * eheadSize), + /* ld_src */ cur_kvSplitSize, + /* K */ headSize, + /* N */ cur_kvSplitSize); + + // Pack [cur_kvSplitSize, headSize_v] + at::vec::pack_vnni2( + /* src */ reinterpret_cast(v_addr), + /* dst */ reinterpret_cast(value_reorder_ptr + + i * num_head_k * kv_padding_size * headSize_v + + j * kv_padding_size * headSize_v + n * headSize_v), + /* ld_src */ vStrideN, + /* K */ cur_kvSplitSize, + /* N */ headSize_v); + // Move to the next query + at::native::data_index_step(i, batchSize_k, j, num_head_k, l, kvSlice); + } + }); + } + // Attention loop below + at::parallel_for(0, batchSize * num_head * qSlice, 1, [&](int64_t begin, int64_t end) { + int64_t i = 0, j = 0, k = 0; + at::native::data_index_init(begin, i, batchSize, j, num_head, k, qSlice); + int ompIdx = at::get_thread_num(); + accum_t* buf_ptr = buf_data + ompIdx * _size_per_thread; + accum_t* qk_data = buf_ptr; + accum_t* qk_max_data = qk_data + qSplitSize * kvSplitSize; + accum_t* qk_sum_data = qk_max_data + qSplitSize; + accum_t* dst_data = qk_sum_data + qSplitSize; + scalar_t *qk_reduced_data = + is_reduced_type + ? buf_reduced_data + ompIdx * qSplitSize * ekvSplitSize + : nullptr; + scalar_t* query_t_padding_ptr = (!headSize_even && need_pack) + ? query_padding_ptr + ompIdx * qSplitSize * eheadSize + : nullptr; + + for ([[maybe_unused]] auto z : c10::irange(begin, end)) { + auto i_kvi = is_broadcast_bs_kvi ? i/bs_shards_kvi : i; + auto j_kvi = is_broadcast_head_kvi ? j/gqa_shards_kvi : j; + auto kv_logical_num_data = kv_num_blocks_data + i_kvi * num_kviStrideB + + j_kvi * num_kviStrideH + k; + int kv_indice_num = *kv_logical_num_data; + std::vector kv_indice_list(kv_indice_num); + for(int kv_i = 0; kv_i < kv_indice_num; kv_i++){ + auto kv_logical_data = kv_indices_data + i_kvi * kviStrideB + + j_kvi * kviStrideH + k*kviStrideQ + kv_i; + kv_indice_list[kv_i] = *kv_logical_data; + } + bool is_skip_kv = kv_indice_num > 0 ? false : true; +{%- if has_full_kv_block %} + auto full_kv_logical_num_data = full_kv_num_blocks_data + i_kvi * num_kviStrideB + + j_kvi * num_kviStrideH + k; + int full_kv_indice_num = *full_kv_logical_num_data; + std::vector full_kv_indice_list(full_kv_indice_num); + for(int kv_i = 0; kv_i < full_kv_indice_num; kv_i++){ + auto full_kv_logical_data = full_kv_indices_data + i_kvi * full_kviStrideB + + j_kvi * full_kviStrideH + k*full_kviStrideQ + kv_i; + full_kv_indice_list[kv_i] = *full_kv_logical_data; + } + is_skip_kv = kv_indice_num + full_kv_indice_num > 0 ? false : true; +{%- endif %} + int64_t m = k * qSplitSize; + int64_t cur_qSplitSize = std::min(qSplitSize, qSize - m); + if (!is_skip_kv){ + // Initialize max and sum + {{kernel.kernel_name}}_fill_stub(qk_max_data, + -std::numeric_limits::infinity(), cur_qSplitSize); + {{kernel.kernel_name}}_fill_stub(qk_sum_data, + static_cast(0), cur_qSplitSize); + + if (!headSize_even && need_pack) { + // Pad query if headSize is not even + {{kernel.kernel_name}}_copy_value_with_pad( + q_data + i * qStrideB + j * qStrideH + m * qStrideM, + query_t_padding_ptr, + cur_qSplitSize, + headSize, + cur_qSplitSize, + eheadSize, + qStrideM + ); + } + } + +{%- if has_full_kv_block %} + for (int64_t n_idx = 0; n_idx < kv_indice_num + full_kv_indice_num ; n_idx += 1) { + auto n = n_idx < kv_indice_num ? kv_indice_list[n_idx]*kvSplitSize : full_kv_indice_list[n_idx - kv_indice_num]*kvSplitSize; +{%- else %} + for (int64_t n_idx = 0; n_idx < kv_indice_num ; n_idx += 1) { + auto n = kv_indice_list[n_idx]*kvSplitSize; +{%- endif %} + + auto cur_n = n/kvSplitSize; + int64_t cur_kvSplitSize = std::min(kvSplitSize, kvSize - n); + int64_t cur_ekvSplitSize = (need_pack && cur_kvSplitSize % 2 != 0) ? cur_kvSplitSize + 1 : cur_kvSplitSize; + + // Calculate scale * q @ k.T + auto i_kv = is_broadcast_bs_kv ? i/bs_shards : i; + auto j_kv = is_broadcast_head_kv ? j/gqa_shards : j; + + if (!need_pack) { + auto k_addr = + k_data + i_kv * kStrideB + j_kv * kStrideH + n * kStrideN; + + {{kernel.kernel_name}}_kernel_micro_gemm_transpose_b(false)>( + q_data + i * qStrideB + j * qStrideH + + m * qStrideM, + k_addr, + qk_data, + cur_qSplitSize, + cur_kvSplitSize, + headSize, + qStrideM, + kStrideN, + cur_kvSplitSize); + + } else { + at::native::cpublas::brgemm( + cur_qSplitSize, + cur_kvSplitSize, + eheadSize, + headSize_even ? qStrideM : eheadSize, + cur_kvSplitSize, + cur_kvSplitSize, + false, + !headSize_even + ? query_t_padding_ptr + : q_data + i * qStrideB + j * qStrideH + m * qStrideM, + key_reorder_ptr + i_kv * num_head_k * eheadSize * kvSize + + j_kv * eheadSize * kvSize + n * eheadSize, + qk_data, + need_pack); + } + + {{kernel.kernel_name}}_mul_scale_kernel(qk_data, scaling_factor, cur_qSplitSize*cur_kvSplitSize); + +{%- if score_mod and mask_mod %} + // TODO: reduce the number of calls of q_idx and kv_idx initialization + std::vector q_idx(cur_qSplitSize); + for (int64_t i = 0; i < cur_qSplitSize; ++i) { + q_idx[i] = m + i; + } + + std::vector kv_idx(cur_kvSplitSize); + for (int64_t i = 0; i < cur_kvSplitSize; ++i) { + kv_idx[i] = n + i; + } + + std::vector b_idx = {i}; + std::vector h_idx = {j}; + + accum_t* in_ptr0 = qk_data; + + auto in_ptr1 = b_idx.data(); + auto in_ptr2 = h_idx.data(); + auto in_ptr3 = q_idx.data(); + auto in_ptr4 = kv_idx.data(); + + // apply score mod function + { + {{ template.generate_other_buffer("score_others", 0, "len_score_other", kernel.args) }} + accum_t* out_ptr{{score_buf_idx}} = in_ptr0; + {{ template.modification(score_mod, score_buf_name, score_buf_idx)|indent(12, false) }} + } + + if ((std::find(kv_indice_list.begin(), kv_indice_list.end(), cur_n) != kv_indice_list.end()) ){ + // Apply block mask, fill unused with -inf + { + {{ template.generate_other_buffer("mask_others", -1, "len_mask_other", kernel.args) }} + accum_t* out_ptr{{mask_buf_idx}} = in_ptr0; + {{ template.modification(mask_mod, mask_buf_name, mask_buf_idx)|indent(12, false) }} + } + } + +{%- endif %} + // Update coefficients with Softmax + accum_t tmp_max = 0, tmp_sum = 0, exp_tmp = 0; + for (int64_t row = 0; row < cur_qSplitSize; ++row) { + // apply scaling factor and max per row in fusion + {{kernel.kernel_name}}_mul_reduce_max_fusion_kernel( + qk_data + row * cur_kvSplitSize, + static_cast(1), + cur_kvSplitSize, + qk_data + row * cur_kvSplitSize, + tmp_max); + tmp_max = qk_max_data[row] > tmp_max ? qk_max_data[row] : tmp_max; + if (tmp_max == -std::numeric_limits::infinity()) { + // to avoid `nan = exp2f(-inf - (-inf))` + {{kernel.kernel_name}}_fill_stub( + {{kernel.kernel_name}}_conditional_data_ptr(qk_data, qk_reduced_data) + row * cur_ekvSplitSize, + static_cast(0), cur_kvSplitSize); + } else { + tmp_sum = tmp_max; + // qk <- exp(qk - max) and sum per row + {{kernel.kernel_name}}_exp_reduce_sum_fusion_kernel( + qk_data + row * cur_kvSplitSize, cur_kvSplitSize, + {{kernel.kernel_name}}_conditional_data_ptr(qk_data, qk_reduced_data) + row * cur_ekvSplitSize, + tmp_sum); + // exp_tmp <- exp(max[row] - max) + exp_tmp = std::exp(qk_max_data[row] - tmp_max); + // sum[row] <- sum + exp_tmp * sum[row] + qk_sum_data[row] = tmp_sum + exp_tmp * qk_sum_data[row]; + // max[row] <- max + qk_max_data[row] = tmp_max; + // dst <- dst * exp_tmp + if (n_idx > 0) { + at::vec::map( + [exp_tmp](Vec x) { return x * Vec(exp_tmp); }, + dst_data + row * headSize_v, + dst_data + row * headSize_v, + headSize_v); + } + } + if (need_pack && cur_kvSplitSize % 2 != 0) { + // Pad: [qSplitSize, cur_kvSplitSize] -> [qSplitSize, cur_kvSplitSize + 1] + *(qk_reduced_data + row * (1 + cur_kvSplitSize) + cur_kvSplitSize) = scalar_t(0); + } + } + // Calculate Softmax(q @ k.T) @ v + if (!need_pack) { + auto v_addr = + v_data + i_kv * vStrideB + j_kv * vStrideH + n * vStrideN; + // Fallback Half brgemm is slower than micro gemm + if (!std::is_same_v) { + at::native::cpublas::brgemm( + cur_qSplitSize, + headSize_v, + cur_ekvSplitSize, + cur_ekvSplitSize, + vStrideN, + headSize_v, + n_idx > 0, + {{kernel.kernel_name}}_conditional_data_ptr(qk_data, qk_reduced_data), + v_addr, + dst_data, + need_pack); + } else { + if (n_idx > 0) { + {{kernel.kernel_name}}_kernel_micro_gemm(true)>( + {{kernel.kernel_name}}_conditional_data_ptr(qk_data, qk_reduced_data), + v_addr, + dst_data, + cur_qSplitSize, + headSize_v, + cur_ekvSplitSize, + cur_ekvSplitSize, + vStrideN, + headSize_v); + } else { + {{kernel.kernel_name}}_kernel_micro_gemm(false)>( + {{kernel.kernel_name}}_conditional_data_ptr(qk_data, qk_reduced_data), + v_addr, + dst_data, + cur_qSplitSize, + headSize_v, + cur_ekvSplitSize, + cur_ekvSplitSize, + vStrideN, + headSize_v); + } + } + } else { + int64_t psize = n / kvSplitSize * ekvSplitSize; + at::native::cpublas::brgemm( + cur_qSplitSize, + headSize_v, + cur_ekvSplitSize, + cur_ekvSplitSize, + headSize_v, + headSize_v, + n_idx > 0, + qk_reduced_data, + value_reorder_ptr + + i_kv * num_head_k * kv_padding_size * headSize_v + + j_kv * kv_padding_size * headSize_v + psize * headSize_v, + dst_data, + need_pack); + } + } + + // dst <- dst / sum[row] + // reorder MHA output with strides + for (int64_t row = 0; row < cur_qSplitSize; ++row) { + // Row sums for full masked out rows are 0, we set them to 1 + // in order to avoid NaNs in the output and instead set fully + // masked out rows to 0 + qk_max_data[row] = qk_max_data[row] == -std::numeric_limits::infinity() ? 0 : qk_max_data[row]; + qk_sum_data[row] = qk_sum_data[row] == 0 ? 1 : qk_sum_data[row]; + accum_t sum_reciprocal = 1 / qk_sum_data[row]; + at::vec::map( + [sum_reciprocal, is_skip_kv](Vec x) { return is_skip_kv ? Vec(0.0) : x * Vec(sum_reciprocal); }, + out_data + i * oStrideB + j * oStrideH + m * oStrideM + row * oStrideM, + dst_data + row * headSize_v, + headSize_v); + } + + // Move to the next query + at::native::data_index_step(i, batchSize, j, num_head, k, qSlice); + } + + at::native::cpublas::brgemm_release(need_pack); + + }); +} +""" + + +class CppFlexAttentionTemplate(CppTemplate): + def __init__( + self, + input_nodes, + layout: ir.Layout, + scale, + score_mod, + mask_mod, + kv_block_size, + q_block_size, + has_other_buffer, + no_full_kv_block, + fake_buffers, + len_score_other, + len_mask_other, + kernel_input_name_to_buffer, + block_vars, + ) -> None: + assert layout.dtype in [torch.float, torch.bfloat16, torch.float16] + super().__init__("flex_attention", input_nodes, layout, parallel_num_threads()) + self.scale = scale + self.score_mod = score_mod + self.mask_mod = mask_mod + self.score_buf_name = ( + V.graph.register_buffer(self.score_mod) if self.score_mod else None + ) + self.mask_buf_name = ( + V.graph.register_buffer(self.mask_mod) if self.mask_mod else None + ) + + def get_idx(buf_name): + match = re.search(r"\d+", buf_name) + assert match, f"incorrect score buf name: {buf_name}" + return match.group() + + self.score_buf_idx = ( + get_idx(self.score_buf_name) if self.score_buf_name else None + ) + self.mask_buf_idx = get_idx(self.mask_buf_name) if self.mask_buf_name else None + self.kv_block_size = kv_block_size + self.q_block_size = q_block_size + self.has_other_buffer = has_other_buffer + self.no_full_kv_block = no_full_kv_block + self.other_buffer_input_offset = 2 + if self.no_full_kv_block: + self.other_buffer_input_offset = 0 + self.fake_buffers = fake_buffers + self.len_score_other = len_score_other + self.len_mask_other = len_mask_other + self.kernel_input_name_to_buffer = kernel_input_name_to_buffer + self.block_vars = block_vars + self.extra_sizevars = list( + OrderedSet( + val + for val in self.kernel_input_name_to_buffer.values() + if isinstance(val, sympy.Symbol) + ) + ) + self.other_buf_start_idx = 5 + self.score_mod_other_buffers = ( + self.input_nodes[ + self.other_buf_start_idx + + self.other_buffer_input_offset : self.other_buf_start_idx + + self.other_buffer_input_offset + + self.len_score_other + ] + if self.has_other_buffer + else None + ) + self.mask_mod_other_buffers = ( + self.input_nodes[ + self.other_buf_start_idx + + self.other_buffer_input_offset + + self.len_score_other : + ] + if self.has_other_buffer + else None + ) + self.other_ptr_data = {} # type: ignore[var-annotated] + + def update_kernel_args(self, kernel_args): + kernel_args.update( + { + key: value + for key, value in self.kernel_input_name_to_buffer.items() + if not isinstance(value, sympy.Symbol) + } + ) + return kernel_args + + def generate_other_buffer(self, buf_list, start_offset, len_attr, kernel_args): + kernel_input_name_to_buffer_name = { + key: value if isinstance(value, sympy.Symbol) else value.get_name() + for key, value in self.kernel_input_name_to_buffer.items() + } + + def get_arg(name): + return kernel_input_name_to_buffer_name.get(name) + + def get_arg_name(name): + if isinstance(get_arg(name), sympy.Symbol): + return kernel_args.sizevars.get(get_arg(name)) + return kernel_args.input_buffers.get(get_arg(name)) + + if not self.has_other_buffer: + return "" + + if start_offset == -1: + start_offset = self.len_score_other + + length = getattr(self, len_attr) + for i in range(length): + pointer = f"in_ptr{self.other_buf_start_idx + start_offset + i}" + buffer_key = f"{buf_list}_{i}" + if pointer not in self.other_ptr_data: + self.other_ptr_data[pointer] = ( + get_arg_name(buffer_key), + get_arg(buffer_key), + ) + + return "\n".join( + f"auto {ptr} = {name};" for ptr, (name, _) in self.other_ptr_data.items() + ) + + def modification(self, subgraph_buffer, output_name, output_idx): + assert isinstance(subgraph_buffer, ir.ComputedBuffer) + subgraph_buffer_data = subgraph_buffer.data + from ..loop_body import LoopBody + from ..utils import sympy_index_symbol_with_prefix, SymT + from ..virtualized import V + from .cpp import CppKernelProxy, KernelGroup, ParallelDepth + + kernel_group = KernelGroup() + kernel_input_args = { + "score": "in_ptr0", + "b": "in_ptr1", + "h": "in_ptr2", + "q_idx": "in_ptr3", + "kv_idx": "in_ptr4", + } + if self.has_other_buffer: + kernel_input_args.update( + {arg: ptr for ptr, (_, arg) in self.other_ptr_data.items()} + ) + + kernel_output_args = {output_name: f"out_ptr{output_idx}"} + + args = kernel_group.args + for name, inp in kernel_input_args.items(): + args.input_buffers[name] = inp + + for name, inp in kernel_output_args.items(): + args.output_buffers[name] = inp + + for name in self.extra_sizevars: + args.sizevars[name] = f"k{name}" + + kernel_group.args = args + + cpp_kernel_proxy = CppKernelProxy(kernel_group) + bodies = [] + var_sizes_list = [] + var_sizes = tuple(subgraph_buffer.get_size()) + var_ranges = { + sympy_index_symbol_with_prefix(SymT.INDEX, i): sz + for i, sz in enumerate(var_sizes) + } + + dst_layout = subgraph_buffer.get_layout() + output_index = dst_layout.make_indexer()([*var_ranges.keys()]) + + def fn(*args): + V.ops.store( + output_name, + output_index, + subgraph_buffer_data.make_loader()(args).value, + ) + + body = LoopBody( + fn, + (list(var_ranges.keys())), + var_ranges, + list(var_ranges.keys()), + tuple(), + ) + + from ..loop_body import MemoryUsageType + + assert all( + mem.buffer_name in kernel_group.args.input_buffers + for mem in body.memory_usage[MemoryUsageType.LOAD] + ), ( + "All the buffers in the score and mask subgraph should be in kernel_group.args.input_buffers" + ) + + bodies.append(body) + var_sizes_list.append((var_sizes, ())) + + cpp_kernel_proxy.codegen_loop_bodies(bodies, var_sizes_list) + + def max_parallel_depth(): + return ParallelDepth(parallel_depth=0, start_depth=0) + + # This loop is not parallelized since it is not the outermost loop. + with patch.object( + cpp_kernel_proxy.loop_nest, "max_parallel_depth", max_parallel_depth + ): + kernel_group.finalize_kernel(cpp_kernel_proxy, []) + output_code = kernel_group.loops_code.getvalue() + + var_q_symbol, var_kv_symbol = self.block_vars + # See [Note] Handle the case where the split sizes are not statically known. + # We don't know the value of qBlockSize and rkvBlockSize during compilation time + # thus we've represented them by symbols. + # We change the symbol strings back to "cur_qSplitSize" and "cur_kvSplitSize" + # in the generated code thus they'll be filled with the real value during runtime. + if var_q_symbol in kernel_group.args.sizevars: + output_code = output_code.replace( + kernel_group.args.sizevars[var_q_symbol], "cur_qSplitSize" + ) + if var_kv_symbol in kernel_group.args.sizevars: + output_code = output_code.replace( + kernel_group.args.sizevars[var_kv_symbol], "cur_kvSplitSize" + ) + + return output_code + + @staticmethod + def add_choices( + choices, + input_nodes, + layout, + scale, + score_mod, + mask_mod, + kv_block_size, + q_block_size, + has_other_buffer, + no_full_kv_block, + fake_buffers, + len_score_other, + len_mask_other, + kernel_input_name_to_buffer, + block_vars, + ): + def preprocessor(input_nodes, layout): + return input_nodes, layout + + def postprocessor(output): + return output + + template = DataProcessorTemplateWrapper( + CppFlexAttentionTemplate, + preprocessor, + postprocessor, + input_nodes=input_nodes, + layout=layout, + scale=scale, + score_mod=score_mod, + mask_mod=mask_mod, + kv_block_size=kv_block_size, + q_block_size=q_block_size, + has_other_buffer=has_other_buffer, + no_full_kv_block=no_full_kv_block, + fake_buffers=fake_buffers, + len_score_other=len_score_other, + len_mask_other=len_mask_other, + kernel_input_name_to_buffer=kernel_input_name_to_buffer, + block_vars=block_vars, + ) + template.maybe_append_choice(choices) + return template + + def apply_score_mod(self, score, b, h, q_idx, kv_idx): + return self.score_mod.graph_module(score, b, h, q_idx, kv_idx).item() + + def render( # type: ignore[override,return] + self, + kernel, + template_buffer_node: Optional[ir.CppTemplateBuffer] = None, + epilogue_nodes: Optional[list[ir.IRNode]] = None, + **kwargs, + ) -> str: + if epilogue_nodes is not None and epilogue_nodes != []: + raise NotImplementedError( + "Unsupported for `epilogue_nodes` in CppFlexAttentionTemplate." + ) + # Query (Batch x Num_heads x Q_seq_len x Dim_per_head) + # -> (Batch x Q_seq_len x Num_heads x Dim_per_head) + # Key (Batch x Num_heads x KV_seq_len x Dim_per_head) + # -> (Batch x KV_seq_len x Num_heads x Dim_per_head) + # Value (Batch x Num_heads x KV_seq_len x Dim_per_head) + # -> (Batch x KV_seq_len x Num_heads x Dim_per_head) + + query = kernel.permute(self.input_nodes[0], [0, 2, 1, 3]) + key = kernel.permute(self.input_nodes[1], [0, 2, 1, 3]) + value = kernel.permute(self.input_nodes[2], [0, 2, 1, 3]) + self.accumulate_dtype = torch.float + self.input_dtype = query.layout.dtype + + num_threads = parallel_num_threads() + assert isinstance(self.output_node, ir.IRNode) + buf_out: ir.IRNode = TensorBox.create(self.output_node) + if template_buffer_node is not None: + buf_out = template_buffer_node + options = dict( + query=query, + key=key, + value=value, + kv_num_blocks=self.input_nodes[3], + kv_indices=self.input_nodes[4], + full_kv_num_blocks=( + self.input_nodes[5] if not self.no_full_kv_block else None + ), + full_kv_indices=self.input_nodes[6] if not self.no_full_kv_block else None, + score_mod_other_buffers=self.score_mod_other_buffers, + mask_mod_other_buffers=self.mask_mod_other_buffers, + scale=self.scale, + has_full_kv_block=not self.no_full_kv_block, + accumulate_dtype=self.accumulate_dtype, + query_dtype=self.input_dtype, + kvBlockSize=self.kv_block_size, + qBlockSize=self.q_block_size, + template=self, + output=buf_out, + kernel=kernel, + num_thread=num_threads, + score_mod=self.score_mod, + mask_mod=self.mask_mod, + score_buf_name=self.score_buf_name, + mask_buf_name=self.mask_buf_name, + score_buf_idx=self.score_buf_idx, + mask_buf_idx=self.mask_buf_idx, + ) + with contextlib.ExitStack() as stack: + for buf in self.fake_buffers: + stack.enter_context( + patch.object(V.graph, "get_dtype", self._fake_get_dtype(buf)) + ) + return self._template_from_string(FLEX_ATTENTION_TEMPLATE).render(**options) + + def codegen_softmax_fusion(self, kernel_name: str): + # TODO: use inductor IR to rewrite those fusions + return self._template_from_string(SOFTMAX_FUSIONS).render( + dict(kernel_name=kernel_name) + ) + + def codegen_brgemm_pack_function(self, kernel_name: str): + # TODO: make them general for common bmm templates + return self._template_from_string(BRGEMM_PACK_FUNCTIONS).render( + dict(kernel_name=kernel_name) + ) + + def codegen_allocate_buffer(self, buffer_name: str, buffer_dtype, buffer_size): + return self._template_from_string(ALLOCATE_BUFFER).render( + dict( + buffer_name=buffer_name, + buffer_dtype=buffer_dtype, + buffer_size=buffer_size, + ) + ) + + def micro_gemm_define(self, kernel_name: str): + from torch._inductor.codegen.cpp_gemm_template import ( + CppTemplateKernel, + parallel_num_threads, + ) + from torch._inductor.codegen.cpp_micro_gemm import CppMicroGemmFP32Vec + from torch._inductor.virtualized import V + + micro_gemm_trans = CppMicroGemmFP32Vec( + kernel_name + "_kernel_micro_gemm_transpose_b", + self.input_dtype, + self.input_dtype, + self.accumulate_dtype, + self.accumulate_dtype, + GemmBlocking(1, 16, 1), + 1, + True, + True, + ) + + micro_gemm = CppMicroGemmFP32Vec( + kernel_name + "_kernel_micro_gemm", + self.input_dtype, + self.input_dtype, + self.accumulate_dtype, + self.accumulate_dtype, + GemmBlocking(1, 16, 1), + 1, + True, + False, + ) + + with V.set_graph_handler(V.graph): + kernel = CppTemplateKernel("cpp_micro_gemm", parallel_num_threads()) + code_trans = micro_gemm_trans.codegen_define(kernel) + code = micro_gemm.codegen_define(kernel) + return code + code_trans + + def codegen_micro_gemm(self, kernel_name: str): + micro_gemm = self.micro_gemm_define(kernel_name) + GEMM_SOURCE_CODE = MICRO_GEMM_TEMPLATE.replace("GEMM_DEFINE", micro_gemm) + return self._template_from_string(GEMM_SOURCE_CODE).render() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_gemm_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_gemm_template.py new file mode 100644 index 0000000000000000000000000000000000000000..8b15ef253a4d0bf61e7449fd77d15f7107997019 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_gemm_template.py @@ -0,0 +1,1819 @@ +# mypy: allow-untyped-defs +import contextlib +import logging +import math +from collections.abc import Callable +from functools import lru_cache +from typing import Any, cast, Optional, TypeVar, Union +from unittest.mock import patch + +import torch +import torch.utils +from torch.utils._ordered_set import OrderedSet + +from ..._dynamo.utils import counters +from .. import config, ir, lowering as L +from ..kernel.mm_common import mm_args +from ..select_algorithm import DataProcessorTemplateWrapper +from ..utils import ( + has_free_symbols, + is_same_mkldnn_tensor, + is_same_tensor, + parallel_num_threads, +) +from ..virtualized import ops, V +from .cpp import get_export_declaration +from .cpp_micro_gemm import ( + CppMicroBrgemm, + CppMicroGemm, + CppMicroGemmAMX, + CppMicroGemmFP32Vec, + create_micro_gemm, + is_int8_woq_gemm_small_m_dim_corner_case, + LayoutType, +) +from .cpp_template import CppTemplate +from .cpp_template_kernel import CppTemplateKernel +from .cpp_utils import ( + create_epilogue_with_attr, + DTYPE_TO_CPP, + GemmBlocking, + get_gemm_template_output_and_compute_dtype, +) + + +log = logging.getLogger(__name__) + +GEMM_TEMPLATE_INIT_BLOCKING_BASIC_BLOCK = r""" + constexpr int64_t num_threads = {{num_threads}}; + constexpr int64_t N = {{N}}; + constexpr int64_t K = {{K}}; + constexpr int64_t Mr = {{micro_gemm.register_blocking.block_m}}; + constexpr int64_t Nr = {{micro_gemm.register_blocking.block_n}}; + constexpr int64_t Kr = {{micro_gemm.register_blocking.block_k}}; + constexpr int64_t Nr_blocks = (N + Nr - 1) / Nr; + constexpr int64_t Kr_blocks = (K + Kr - 1) / Kr; +{%- if is_dynamic_M %} + const int64_t M = {{kernel.size(GemmOut, 0)}}; + const int64_t Mr_blocks = (M + Mr - 1) / Mr; +{%- else %} + constexpr int64_t M = {{kernel.size(GemmOut, 0)}}; + constexpr int64_t Mr_blocks = (M + Mr - 1) / Mr; +{%- endif %} +""" + +GEMM_TEMPLATE_INIT_BLOCKING_EXTENDED = r""" +{%- if is_dynamic_M %} + {%- if num_threads > 1 %} + int64_t Mt_blocks, Nt_blocks, Kt_blocks; + mm_get_thread_blocking(num_threads, {{config.cpp.gemm_max_k_slices}}, M, N, K, Mr, Nr, Kr, Mt_blocks, Nt_blocks, Kt_blocks); + {%- else %} + const auto Mt_blocks = Mr_blocks; + const auto Nt_blocks = Nr_blocks; + const auto Kt_blocks = Kr_blocks; + {%- endif %} + int64_t Mc_blocks, Nc_blocks, Kc_blocks; + uint32_t L1_cache_size = {{L1_cache_size}}; + uint32_t L2_cache_size = {{L2_cache_size}}; + mm_get_cache_blocking<{{kernel.dtype(X)}}, {{kernel.dtype(W)}}>( + num_threads, + M, + N, + K, + Mr, + Nr, + Kr, + Mt_blocks, + Nt_blocks, + Kt_blocks, + Mc_blocks, + Nc_blocks, + Kc_blocks, + L1_cache_size, + L2_cache_size + ); + const int64_t num_Mc_blocks = (Mr_blocks + Mc_blocks - 1) / Mc_blocks; + const int64_t num_Nc_blocks = (Nr_blocks + Nc_blocks - 1) / Nc_blocks; + const int64_t num_Mt_blocks = (Mr_blocks + Mt_blocks - 1) / Mt_blocks; + const int64_t num_Nt_blocks = (Nr_blocks + Nt_blocks - 1) / Nt_blocks; + const int64_t num_Kt_blocks = (Kr_blocks + Kt_blocks - 1) / Kt_blocks; +{%- else %} + constexpr int64_t Mt_blocks = {{template.thread_blocking(num_threads).block_m}}; + constexpr int64_t Nt_blocks = {{template.thread_blocking(num_threads).block_n}}; + constexpr int64_t Kt_blocks = {{template.thread_blocking(num_threads).block_k}}; + constexpr int64_t Mc_blocks = {{template.cache_blocking(num_threads).block_m}}; + constexpr int64_t Nc_blocks = {{template.cache_blocking(num_threads).block_n}}; + constexpr int64_t Kc_blocks = {{template.cache_blocking(num_threads).block_k}}; + constexpr int64_t num_Mc_blocks = (Mr_blocks + Mc_blocks - 1) / Mc_blocks; + constexpr int64_t num_Nc_blocks = (Nr_blocks + Nc_blocks - 1) / Nc_blocks; + constexpr int64_t num_Mt_blocks = (Mr_blocks + Mt_blocks - 1) / Mt_blocks; + constexpr int64_t num_Nt_blocks = (Nr_blocks + Nt_blocks - 1) / Nt_blocks; + constexpr int64_t num_Kt_blocks = (Kr_blocks + Kt_blocks - 1) / Kt_blocks; +{%- endif %} +{%- if is_woq_int4 %} + int64_t group_size = *q_group_size; +{%- endif %} + + // make sure all partitions are assigned + {{kernel.assert_function}}( + Mt_blocks * Nt_blocks * Kt_blocks * {{num_threads}} >= Mr_blocks * Nr_blocks * Kr_blocks, + "Not all partitions are assigned." + ); +""" + +GEMM_TEMPLATE_MULTI_THREADS_PARAMS = r""" +const int tid = omp_get_thread_num(); +const int64_t k_group_id = tid / num_Kt_blocks; +const int64_t k_slice_id = tid % num_Kt_blocks; +const int64_t n_group_id = k_group_id / num_Nt_blocks; +const int64_t n_slice_id = k_group_id % num_Nt_blocks; +const int64_t k_block_start = k_slice_id * Kt_blocks; +const int64_t k_block_end = std::min(k_block_start + Kt_blocks, Kr_blocks); +const int64_t n_block_start = n_slice_id * Nt_blocks; +const int64_t n_block_end = std::min(n_block_start + Nt_blocks, Nr_blocks); +const int64_t m_block_start = std::min(n_group_id * Mt_blocks, Mr_blocks); +const int64_t m_block_end = std::min(m_block_start + Mt_blocks, Mr_blocks); +const int64_t num_Mc_blocks_per_thread = (m_block_end - m_block_start + Mc_blocks - 1) / Mc_blocks; +""" + +GEMM_TEMPLATE_SINGLE_THREAD_PARAMS = r""" +constexpr int tid = 0; +constexpr int64_t k_group_id = 0; +constexpr int64_t k_slice_id = 0; +constexpr int64_t n_group_id = 0; +constexpr int64_t n_slice_id = 0; +constexpr int64_t m_block_start = 0; +constexpr int64_t n_block_start = 0; +constexpr int64_t n_block_end = Nr_blocks; +constexpr int64_t k_block_start = 0; +constexpr int64_t k_block_end = Kr_blocks; +{%- if is_dynamic_M %} +const int64_t num_Mc_blocks_per_thread = num_Mc_blocks; +const int64_t m_block_end = Mr_blocks; +{%- else %} +constexpr int64_t num_Mc_blocks_per_thread = num_Mc_blocks; +constexpr int64_t m_block_end = Mr_blocks; +{%- endif %} +""" + +GEMM_TEMPLATE_M_LOOP_PARAMS = r""" +const int64_t my_mc_block_id = (mc_block_id + n_slice_id) % num_Mc_blocks_per_thread; +const int64_t mc = m_block_start + my_mc_block_id * Mc_blocks; +const int64_t m_start = mc * Mr; +const int64_t m_end = std::min(std::min(mc + Mc_blocks, m_block_end) * Mr, M); +const int64_t m_size = m_end - m_start; +""" + +GEMM_TEMPLATE_N_LOOP_PARAMS = r""" +const int64_t n_start = nc * Nr; +const int64_t n_end = std::min(std::min(nc + Nc_blocks, n_block_end) * Nr, N); +const int64_t n_size = n_end - n_start; +// NB: assume we pad N, nc_block_end won't exceed padded N here. +const int64_t nc_block_end = std::min(nc + Nc_blocks, n_block_end); +""" + +GEMM_TEMPLATE_MICROKERNEL_DEF = r""" +{{template.header().getvalue()}} + +{{micro_gemm.codegen_define(kernel)}} +""" + +GEMM_TEMPLATE_STUB_DEF = r""" +{%- if x_scale is not none %} + {%- set kernel_args = {"X": X, "W": W, "inp": inp, "x_scale": x_scale, "x_zp": x_zp, "w_scale": w_scale, "w_zp": w_zp,} %} +{%- elif is_woq_int4 %} + {%- set kernel_args = {"X": X, "W": W, "q_group_size": q_group_size, "qscale_and_zeros": qscale_and_zeros} %} +{%- else %} + {%- set kernel_args = {"X": X, "W": W, "inp": inp} %} +{%- endif %} + +extern "C" {{export_declaration}} +{{kernel.def_kernel(inputs=kernel_args, outputs={"Y": Y}, aliases=aliases)}} +""" + +GEMM_TEMPLATE = r""" +{{ template.codegen_gemm_stub_def() }} +{ + {{ kernel.maybe_codegen_profile() }} + {{ template.codegen_blocks( + num_threads, N, K, micro_gemm, is_dynamic_M, kernel, GemmOut, config, L1_cache_size, L2_cache_size, X, W + ) }} + +{%- if maybe_k_slicing %} + std::unique_ptr[]> local_buf_ptrs; + if (num_Kt_blocks > 1) { + local_buf_ptrs.reset(new std::unique_ptr<{{DTYPE_TO_CPP[acc_buf_dtype]}}[]>[num_Mc_blocks * num_Nc_blocks * num_Kt_blocks]); + } +{%- endif %} + +{%- if num_threads > 1 %} + #pragma omp parallel num_threads({{num_threads}}) + { + {{ template.codegen_multi_threads_params()|indent(8, false) }} +{%- else %} + { + {{ template.codegen_single_thread_params(is_dynamic_M)|indent(8, false) }} +{%- endif %} + {{ micro_gemm.codegen_init(kernel) }} +{%- if use_local_acc %} + {%- set acc_buf_name = "local_acc_buf" %} + {{ kernel.define_buffer(acc_buf_name, ["Mc_blocks*Mr", "Nc_blocks*Nr"], acc_buf_dtype) }} +{%- endif %} + for (int64_t mc_block_id = 0; mc_block_id < num_Mc_blocks_per_thread; mc_block_id++) { + {{ template.codegen_m_loop_params()|indent(12, false) }} + for (int64_t nc = n_block_start; nc < n_block_end; nc += Nc_blocks) { + {{ template.codegen_n_loop_params()|indent(16, false) }} +{%- if use_local_acc %} + {%- set acc = kernel.local_buffers[acc_buf_name] %} + {{ kernel.reinit_buffer_if_null(acc_buf_name) }} +{%- else %} + {%- set acc = kernel.slice_nd(GemmOut, [("m_start", "m_end"), ("n_start", "n_end")]) %} +{%- endif %} + for (int64_t kc = k_block_start; kc < k_block_end; kc += Kc_blocks) { + int64_t k_start = kc * Kr; + int64_t k_end = std::min(std::min(kc + Kc_blocks, k_block_end) * Kr, K); +{%- set tile_X = kernel.slice_nd(X, [("m_start", "m_end"), ("k_start", "k_end")]) %} + for (int64_t nci = nc; nci < nc_block_end; nci++) { +{%- set acc_slice = kernel.slice_nd(acc, [("0", "m_end - m_start"), ("(nci - nc)*Nr", "(nci - nc + 1)*Nr")]) %} +{%- if template.should_block_weights and not is_woq_int4 %} +{%- set tile_W_3d = kernel.slice_nd(W, [("nci", "nci + 1"), ("k_start", "k_end"), ()]) %} +{%- set tile_W = kernel.view(tile_W_3d, ["k_end - k_start", micro_gemm.register_blocking.block_n]) %} +{%- else %} + {%- if is_woq_int4 %} + {%- set tile_W = kernel.slice_nd(W, [("nci * Nr", "(nci + 1) * Nr"), ("k_start * Nr / 2", "k_end * Nr / 2")]) %} + {%- set tile_qparam = kernel.slice_nd( + qscale_and_zeros, [("k_start // group_size", "k_end // group_size"), ("nci * Nr", "(nci + 1) * Nr"), ()]) %} + {%- else %} + {%- set tile_W = kernel.slice_nd(W, [("k_start", "k_end"), ("n_start", "n_start + n_size")]) %} + {%- set tile_qparam = None %} + {%- endif %} +{%- endif %} + if (kc == k_block_start) { + {{ micro_gemm.codegen_call(kernel, + tile_X, + tile_W, + acc_slice, + accum=False, + qscale_and_zeros=tile_qparam)|indent(28, false) + }} + } else { + {{ micro_gemm.codegen_call(kernel, + tile_X, + tile_W, + acc_slice, + accum=True, + qscale_and_zeros=tile_qparam)|indent(28, false) + }} + } + } + } +{%- if maybe_k_slicing %} + if (num_Kt_blocks > 1) { + const int64_t mxn_cache_block_id = (mc / Mc_blocks) * num_Nc_blocks + nc; + local_buf_ptrs[mxn_cache_block_id * num_Kt_blocks + k_slice_id].reset( + {{ kernel.release_buffer(acc_buf_name) }}); + } else +{%- endif %} + { +{%- set tile_Y = kernel.slice_nd(Y_2d, [("m_start", "m_end"), ("n_start", "n_end")]) %} +{%- set tile_acc = kernel.slice_nd(acc, [("0", "m_end - m_start"), ("0", "n_end - n_start")]) %} + {{ kernel.store_output( + tile_Y, tile_acc, GemmOut, epilogue_nodes, offsets=("m_start", "n_start"), reindexers=reindexers + )|indent(20, false) + }} + } + } + } +{%- if maybe_k_slicing %} + if (num_Kt_blocks > 1) { + #pragma omp barrier + for (int64_t mc = m_block_start; mc < m_block_end; mc += Mc_blocks) { + // We slice M-dim and each thread in the k-slicing group works on a slice + const int64_t m_start_unsliced = mc * Mr; + const int64_t m_end_unsliced = std::min(std::min(mc + Mc_blocks, m_block_end) * Mr, M); + const int64_t m_size_unsliced = m_end_unsliced - m_start_unsliced; + const int64_t m_slice_size = (m_size_unsliced + num_Kt_blocks - 1) / num_Kt_blocks; + const int64_t m_start = std::min(m_start_unsliced + m_slice_size * k_slice_id, m_end_unsliced); + const int64_t m_end = std::min(m_start_unsliced + m_slice_size * (k_slice_id + 1), m_end_unsliced); + const int64_t m_size = m_end - m_start; + const int64_t m_offset = m_start - m_start_unsliced; + for (int64_t nc = n_block_start; nc < n_block_end; nc += Nc_blocks) { + const int64_t n_start = nc * Nr; + const int64_t n_end = std::min(std::min(nc + Nc_blocks, n_block_end) * Nr, N); + const int64_t n_size = n_end - n_start; + const int64_t mxn_cache_block_id = (mc / Mc_blocks) * num_Nc_blocks + nc; + auto {{acc_buf_name}} = local_buf_ptrs[mxn_cache_block_id * num_Kt_blocks].get(); + for (int64_t other_slice = 1; other_slice < num_Kt_blocks; other_slice++) { + auto other_acc = local_buf_ptrs[mxn_cache_block_id * num_Kt_blocks + other_slice].get(); + for (int64_t m = m_offset; m < m_offset + m_size; m++) { + #pragma omp simd + for (int64_t n = 0; n < n_size; n++) { + {{acc_buf_name}}[m*Nr + n] += other_acc[m*Nr + n]; + } + } + } + {%- set tile_acc_m_slice = kernel.slice_nd(tile_acc, [("m_offset", "m_offset + m_end - m_start"), ()]) %} + {{ kernel.store_output( + tile_Y, tile_acc_m_slice, GemmOut, epilogue_nodes, offsets=("m_start", "n_start"), reindexers=reindexers + )|indent(20, false) + }} + } + } + } +{%- endif %} + {{ micro_gemm.codegen_finalize(kernel) }} + } +} +""" + +SMALL_M_GEMM_TEMPLATE = r""" +{{ template.codegen_gemm_stub_def() }} +{ + {{ kernel.maybe_codegen_profile() }} + {{ template.codegen_blocks( + num_threads, N, K, micro_gemm, is_dynamic_M, kernel, GemmOut, config, L1_cache_size, L2_cache_size, X, W + ) }} + # pragma omp parallel + { + #pragma omp for nowait + for (int64_t nr_block_id = 0; nr_block_id < Nr_blocks; nr_block_id++) { + // Handle one output M * Nr block in each thread + int64_t n_start = nr_block_id * Nr; + int64_t n_end = (nr_block_id + 1) * Nr; +{%- if use_local_acc %} + {%- set acc_buf_name = "local_acc_buf" %} + {{ kernel.define_stack_allocated_buffer(acc_buf_name, ["M", "Nr"], acc_buf_dtype) }} + {%- set acc = kernel.local_buffers[acc_buf_name] %} +{%- else %} + {%- set acc = kernel.slice_nd(GemmOut, [(0, "M"), ("n_start", "n_end")]) %} +{%- endif %} + for (int64_t kr_block_id = 0; kr_block_id < Kr_blocks; kr_block_id++) { + // this loop is not parallelized + int64_t k_start = kr_block_id * Kr; + int64_t k_end = std::min((kr_block_id + 1) * Kr, K); +{%- set tile_X = kernel.slice_nd(X, [(0, "M"), ("k_start", "k_end")]) %} +{%- set tile_W_3d = kernel.slice_nd(W, [("nr_block_id", "nr_block_id + 1"), ("k_start", "k_end"), ()]) %} +{%- set tile_W = kernel.view(tile_W_3d, ["k_end - k_start", micro_gemm.register_blocking.block_n]) %} + if C10_UNLIKELY(kr_block_id == 0) { + {{ micro_gemm.codegen_call(kernel, tile_X, tile_W, acc, accum=False, prefetch=True)|indent(20, false) }} + } else if C10_UNLIKELY(k_end == K) { + {{ micro_gemm.codegen_call(kernel, tile_X, tile_W, acc, accum=True, prefetch=False)|indent(20, false) }} + } else { + {{ micro_gemm.codegen_call(kernel, tile_X, tile_W, acc, accum=True, prefetch=True)|indent(20, false) }} + } + } +{%- set tile_Y = kernel.slice_nd(Y_2d, [("0", "M"), ("n_start", "n_end")]) %} +{%- set tile_acc = kernel.slice_nd(acc, [("0", "M"), ("0", "n_end - n_start")]) %} + {{ kernel.store_output( + tile_Y, tile_acc, GemmOut, epilogue_nodes, offsets=("0", "n_start"), reindexers=reindexers + )|indent(20, false) }} + } + } +} +""" + + +def _is_int8_gemm(inputs): + return ( + isinstance(inputs[0], ir.IRNode) + and inputs[0].get_dtype() in [torch.uint8, torch.int8] + ) or ( + isinstance(inputs[0], torch.Tensor) + and inputs[0].dtype in [torch.uint8, torch.int8] + ) + + +def get_padded_n(n, block_n): + return (n + block_n - 1) // block_n * block_n + + +_T = TypeVar("_T", ir.IRNode, torch.Tensor) + + +def transpose_w(W: _T, trans_w: bool) -> _T: + """ + Transpose W based on the trans_w flag. + """ + if isinstance(W, ir.IRNode): + if trans_w: + if not isinstance(W, ir.TensorBox): + # pyrefly: ignore [bad-assignment] + W = ir.TensorBox(W) + W = L.permute(W, [1, 0]) + else: + if trans_w: + assert isinstance(W, torch.Tensor) + # pyrefly: ignore [bad-assignment] + W = W.transpose(0, 1) + # pyrefly: ignore [bad-return] + return W + + +def expand_bias(B: Optional[_T], X: _T) -> Optional[_T]: + """ + Expand Bias to the same size of X. + """ + if B is not None: + if isinstance(B, ir.IRNode): + if not isinstance(B, ir.TensorBox): + # pyrefly: ignore [bad-assignment] + B = ir.TensorBox(B) + assert hasattr(X, "get_size") + # pyrefly: ignore [missing-attribute] + B = L.expand(B, (X.get_size()[0], B.get_size()[-1])) + else: + assert isinstance(B, torch.Tensor) + assert isinstance(X, torch.Tensor) + # pyrefly: ignore [bad-assignment] + B = B.expand(X.shape[0], B.shape[-1]) + return B + + +def prune_tensors(input_nodes: list[ir.IRNode], new_input_nodes: list[ir.IRNode]): + """ + Prune unused tensors from `V.graph` since the GEMM Template use new packed weight. + """ + + def share_storage(base_tensor: torch.Tensor, comp_tensor: torch.Tensor): + return base_tensor.is_mkldnn == comp_tensor.is_mkldnn and ( + is_same_tensor(base_tensor, comp_tensor) + or is_same_mkldnn_tensor(base_tensor, comp_tensor) + ) + + def get_candidates(input_nodes, new_input_nodes): + # Only Constant Buffer like weight and bias might be changed in GEMM Template. + # The Inductor IR Node may changed, but still share the storage. For example: + # bias in bfloat16 case which only do the expand + return [ + node + for node in input_nodes + if ( + node not in new_input_nodes + and isinstance(node, (ir.TensorBox, ir.StorageBox)) + and node.get_name() in V.graph.constants + and not any( + ( + isinstance(new_node, (ir.TensorBox, ir.StorageBox)) + and new_node.get_name() in V.graph.constants + and share_storage( + V.graph.constants[node.get_name()], + V.graph.constants[new_node.get_name()], + ) + ) + for new_node in new_input_nodes + ) + ) + ] + + for candidate_node in get_candidates(input_nodes, new_input_nodes): + # By using the new packed weight for the GEMM template, we can prune the + # old weight if it has no other users. This saves memory but makes the FX graph + # non-retraceable. To support retracing, we can add a repack node to the + # FX graph. For example: + # mkldnn._linear_pointwise <- repack_linear_wgt <- packed_wgt_for_template + candidate_tensor_users = 0 + candidate_tensor = V.graph.constants[candidate_node.get_name()] + for node in reversed(V.graph.graph.nodes): + # Case may happen when the candidate tensor is used by more than 1 get_attr node + # https://github.com/pytorch/pytorch/issues/134998 + if node.op == "get_attr" and hasattr( + V.graph.module, node.target + ): # candidate tensor might already be deleted + comp_tensor = getattr(V.graph.module, node.target) + if isinstance(comp_tensor, torch.Tensor) and share_storage( + candidate_tensor, comp_tensor + ): + candidate_tensor_users += 1 + + for node in reversed(V.graph.graph.nodes): + # The get_attr node has only 1 user fx node + # The candidate tensor has been used by only 1 get_attr node + if ( + node.op == "get_attr" + and node.target == candidate_node.get_name() + and len(node.users) == 1 + and candidate_tensor_users == 1 + ): + del V.graph.constants[node.target] + delattr(V.graph.module, node.target) + delattr(V.graph.graph.owning_module, node.target) + counters["inductor"]["select_algorithm_weight_prune"] += 1 + + +def gen_2d_view_of_epilogue_buf( + Y: ir.Buffer, + template_buffer: ir.Buffer, + epilogue_nodes: list[ir.IRNode], + reindexers: list[Optional[Callable[[list[Any]], list[Any]]]], + default_reindexers: list[Optional[Callable[[list[Any]], list[Any]]]], +) -> tuple[ + Union[ir.Buffer, ir.ReinterpretView], + list[Optional[Callable[[list[Any]], list[Any]]]], +]: + """ + The dimension and the indexing could be different between the GEMM output, i.e. `template_buffer`, which is + 2D with MxN) and the output from the template after epilogues, i.e. `Y`. In the GEMM template code, + we are not aware of the dimension and the indexing of the epilogues and always work on 2D tiles according to + the indexing of the GEMM output. + In this function, we return a 2D buffer (`Y_2d`) according to GEMM output (reinterpreted from `Y` if needed) and + build a reindexer that converts the indexing of `Y` into `Y_2d`. + """ + Y_2d: Union[ir.Buffer, ir.ReinterpretView] = Y + if ( + Y.get_size() == template_buffer.get_size() + and Y.get_stride() == template_buffer.get_stride() + ): + reindexers.extend(default_reindexers) + Y_2d = Y + else: + + def get_reindexer(epilogue_node, default_reindexer=None): + # From template_buffer to epilogue_node_ordered (ordered by stride decreasingly, in dense format), for example: + # template_buffer: + # size (324, 512), stride (512, 1) + # epilogue_node_ordered (ordered by stride decreasingly, in dense format): + # size (1, 18, 18, 512), stride (165888, 9216, 512, 1) + stride_order = list( + ir.get_stride_order( + V.graph.sizevars.size_hints(epilogue_node.get_stride()) + ) + ) + fill_order = ir.stride_order2fill_order(stride_order) + reversed_fill_order = list(reversed(fill_order)) + size_with_stride_ordered_decreasingly = [ + epilogue_node.get_size()[i] for i in reversed_fill_order + ] + reshape_reindex = ir.View.dynamic_reshape_indexer( + size_with_stride_ordered_decreasingly, + template_buffer.get_size(), + ) + if default_reindexer: + reshape_reindex = ir.fuse_reindexing(reshape_reindex, default_reindexer) + + # From epilogue_node_ordered (ordered by stride decreasingly, in dense format) to epilogue_node, for example: + # epilogue_node_ordered (ordered by stride decreasingly, in dense format): + # size (1, 18, 18, 512), stride (165888, 9216, 512, 1) + # epilogue_node: + # size (1, 18, 18, 512), stride (165888, 1, 9216, 512) + from_stride_ordered_decreasingly_to_epilogue_node_order = [ + (len(stride_order) - 1) - stride_order[i] + for i in range(len(stride_order)) + ] + stride_reindex = ir.same_reorder( + from_stride_ordered_decreasingly_to_epilogue_node_order + ) + + reindexer = ir.fuse_reindexing(stride_reindex, reshape_reindex) # type: ignore[var-annotated] + return reindexer + + if default_reindexers is None: + default_reindexers = [None] * len(epilogue_nodes) + new_reindexers = [ + get_reindexer(epilogue_node, default_reindexer) + for epilogue_node, default_reindexer in zip( + epilogue_nodes, default_reindexers + ) + ] + reindexers.extend(new_reindexers) + if isinstance(Y, ir.BaseView): + storage = ir.StorageBox(Y.unwrap_view()) + else: + assert isinstance(Y, ir.Buffer) + storage = ir.StorageBox(Y) + Y_2d = ir.ReinterpretView(data=storage, layout=template_buffer.get_layout()) + return Y_2d, reindexers + + +class CppGemmTemplate(CppTemplate): + """ + GEMM Template for Inductor CPP Backend. + """ + + def __init__( + self, + input_nodes, + layout: ir.Layout, + num_threads: int, + register_blocking: GemmBlocking, + beta=1, + alpha=1, + has_bias=False, + epilogue_creator: Optional[Callable[[ir.Buffer], ir.Pointwise]] = None, + should_block_weights: bool = True, + name="packed_gemm", + ) -> None: + assert layout.dtype in [torch.float, torch.bfloat16, torch.half, torch.uint8] + super().__init__( + name, + input_nodes, + layout, + num_threads, + epilogue_creator=epilogue_creator, + ) + self.beta = beta + self.alpha = alpha + self.has_bias = has_bias + self.register_blocking = register_blocking + m, n = layout.size[-2:] + k = input_nodes[0].get_size()[-1] + self.m, self.n, self.k = m, n, k + self.padded_n = get_padded_n(n, self.register_blocking.block_n) + self.is_dynamic_M = has_free_symbols((m,)) + self.should_block_weights = should_block_weights + self.thread_blocking = self.make_thread_blocking_cache() + self.cache_blocking = self.make_cache_blocking_cache() + + def make_thread_blocking_cache(self): + cache = lru_cache()(self._thread_blocking) + + def thread_blocking(num_threads: int) -> GemmBlocking: + return cache(num_threads) + + return thread_blocking + + def _thread_blocking(self, num_threads: int) -> GemmBlocking: + """ + NOTE [Thread blocking in Cpp GEMM] + We use simple heuristics to decide the thread blocking: + 1. Make sure all threads are occupied as much as possible. + 2. For (m, n) blocks, favor more square-sized thread blocks for better data reuse. + 3. If (m, n) blocks cannot occupy all the threads, we consider k-slicing. + TODO(jgong5): allow tuning various blocking options + """ + + def get_factors(number): + factors = [] + for i in range(int(number**0.5), 0, -1): + if number % i == 0: + factors.append(number // i) + factors.append(i) + return factors + + def get_blocking(m_factor, n_factor, k_factor, m_blocks, n_blocks, k_blocks): + thread_block_k = math.ceil(k_blocks / k_factor) + thread_block_n = math.ceil(n_blocks / n_factor) + thread_block_m = math.ceil(m_blocks / m_factor) + return GemmBlocking(thread_block_m, thread_block_n, thread_block_k) + + assert not self.is_dynamic_M, ( + "Unable to determine thread blocking for dynamic M." + ) + register_blocking = self.register_blocking + m_blocks = math.ceil(self.m / register_blocking.block_m) + n_blocks = math.ceil(self.n / register_blocking.block_n) + k_blocks = math.ceil(self.k / register_blocking.block_k) + factors = get_factors(num_threads) + assert len(factors) > 0 + + if config.cpp.gemm_thread_factors is not None: + factors = [int(i) for i in config.cpp.gemm_thread_factors.split(",")] + assert len(factors) == 3 + assert math.prod(factors) == self.num_threads + return get_blocking( + factors[0], factors[1], factors[2], m_blocks, n_blocks, k_blocks + ) + + # we favor square-sized thread blocks for good data reuse + def get_better_blocking(blocking, best_blocking): + if best_blocking is None: + best_blocking = blocking + else: + block_m_size = blocking.block_m * register_blocking.block_m + block_n_size = blocking.block_n * register_blocking.block_n + best_block_m_size = best_blocking.block_m * register_blocking.block_m + best_block_n_size = best_blocking.block_n * register_blocking.block_n + if blocking.block_k > best_blocking.block_k: + best_blocking = blocking + elif ( + blocking.block_k == best_blocking.block_k + and block_m_size + block_n_size + < best_block_m_size + best_block_n_size + ): + best_blocking = blocking + return best_blocking + + best_blocking = None + # check if we can have a thread-blocking to occupy all threads without k-slicing + for n_factor in factors: + m_factor = num_threads // n_factor + if n_blocks >= n_factor and m_blocks >= m_factor: + blocking = get_blocking( + m_factor, n_factor, 1, m_blocks, n_blocks, k_blocks + ) + best_blocking = get_better_blocking(blocking, best_blocking) + + if best_blocking is None: + for k_factor in factors: + if k_blocks >= k_factor and ( + config.cpp.gemm_max_k_slices == 0 + or k_factor <= config.cpp.gemm_max_k_slices + ): + n_factors = get_factors(num_threads // k_factor) + for n_factor in n_factors: + m_factor = (num_threads // k_factor) // n_factor + if n_blocks >= n_factor and m_blocks >= m_factor: + blocking = get_blocking( + m_factor, + n_factor, + k_factor, + m_blocks, + n_blocks, + k_blocks, + ) + best_blocking = get_better_blocking(blocking, best_blocking) + + if best_blocking is None: + for n_factor in factors: + m_factor = num_threads // n_factor + if n_blocks >= n_factor or m_blocks >= m_factor: + blocking = get_blocking( + m_factor, n_factor, 1, m_blocks, n_blocks, k_blocks + ) + best_blocking = get_better_blocking(blocking, best_blocking) + + assert best_blocking is not None + return best_blocking + + def make_cache_blocking_cache(self): + cache = lru_cache()(self._cache_blocking) + + def cache_blocking(num_threads: int) -> GemmBlocking: + return cache(num_threads) + + return cache_blocking + + def _cache_blocking(self, num_threads: int) -> GemmBlocking: + def get_cache_blocking(register_blocking, thread_blocking): + Mr = register_blocking.block_m + Nr = register_blocking.block_n + Kr = register_blocking.block_k + + Mt_blocks = thread_blocking.block_m + Nt_blocks = thread_blocking.block_n + Kt_blocks = thread_blocking.block_k + + if config.cpp.gemm_cache_blocking is not None: + blockings = [int(i) for i in config.cpp.gemm_cache_blocking.split(",")] + assert len(blockings) == 3 + Mc_blocks, Nc_blocks, Kc_blocks = blockings + return ( + min(Mc_blocks, Mt_blocks), + min(Nc_blocks, Nt_blocks), + min(Kc_blocks, Kt_blocks), + ) + + # The ratios below are empirically determined to decide + # the effective sizes of L1 and L2. + # TODO: tune the factor here + L1_limit_factor = 0.8 + L2_limit_factor = 0.5 + + L1_cache_size = ( + torch._C._cpu._L1d_cache_size() + ) # per core cache size in Bytes + assert L1_cache_size > 0, ( + f"Expect L1_cache_size > 0 but got {L1_cache_size}" + ) + L1 = L1_cache_size * L1_limit_factor + + L2_cache_size = ( + torch._C._cpu._L2_cache_size() + ) # per core cache size in Bytes + assert L2_cache_size > 0, ( + f"Expect L2_cache_size > 0 but got {L2_cache_size}" + ) + L2 = L2_cache_size * L2_limit_factor + + def get_num_byte(dtype): + return torch.tensor([], dtype=dtype).element_size() + + dtype_A = self.input_nodes[0].get_dtype() + dtype_B = self.input_nodes[1].get_dtype() + num_byte_A = get_num_byte(dtype_A) + num_byte_B = get_num_byte(dtype_B) + if dtype_A is torch.bfloat16 and dtype_B is torch.int8 and Kr != 1: + # We will cache dequantized weights (BF16) in L1D for AMX micro-kernel. + # In this case, the choice of the micro-kernel being used can't be decoupled from + # the cache blocking. + # TODO: Decouple the choice of micro-kernel from cache blocking + num_byte_B *= num_byte_A + + # NOTE [CPP GEMM Cache Blocking Algorithm] + # Our overall strategy is to + # 1) Make cache blocks of B L1-reside and reused by multiple rows of A, i.e. Mc. + # Here, B is Kc x Nr where Nr is a single register block. We use L1 size to + # decide Kc. We want to make Mc large enough to better reuse B. + # 2) Make cache blocks of A L2-reside, which would limit Mc. We want to reuse A + # along N, where we have two sub-strategies (see notes below) to decide Mc and Nc. + + # Step 1: Decide Kc assuming B block is L1-reside. + size_cache_B = Kr * Kt_blocks * Nr * num_byte_B + + Kc_blocks = Kt_blocks + if size_cache_B > L1: + Kc_blocks = math.floor(L1 / (Kr * Nr * num_byte_B)) + + if ( + config.cpp.use_small_dequant_buffer + and dtype_A is torch.bfloat16 + and Mt_blocks == 1 + ): + if dtype_B is torch.uint8: + # A16W4 + # Make a small dequant_B buffer for woq int4 [q_group_size, Nr] + # Since when Mt_blocks == 1, L1-reside B block can't be reused by A. + if Kc_blocks * Kr >= self.q_group_size(): + Kc_blocks = self.q_group_size() // Kr + + elif dtype_B is torch.int8: + # A16W8 + # Make A, B, C buffer in L1 + A_buf_size_div_K = self.m * num_byte_A + B_buf_size_div_K = Nr * num_byte_B + # assume acc in float32/int32 and Mc_blocks = Nc_blocks = 1 + C_buf_size = Mr * Nr * 4 + K_block_size = (L1 - C_buf_size) // ( + A_buf_size_div_K + B_buf_size_div_K + ) + if Kc_blocks * Kr >= K_block_size: + Kc_blocks = (K_block_size + Kr - 1) // Kr + + # Step 2: Decide Mc assuming A block is L2-reside. + min_Mc_ratio = 2 # TODO(jgong5): something to tune? + min_Mc_blocks = math.ceil(min_Mc_ratio * Mr / Nr) + assert min_Mc_blocks >= 1 + Kt_bytes = Kt_blocks * Kr * num_byte_A + if min_Mc_blocks * Mr * Kt_bytes < L2: + # Strategy 1: A (Mc x Kt) resides in L2 and reused by all Nt + # when Nc_blocks is kept 1. Mc should be large enough (>= min_Mc_blocks) + # to reuse B (Kc x Nr) in L1. This makes C (Mc x Nr) small enough to reside + # in L1. + Mc_blocks = min(Mt_blocks, math.floor(L2 / (Mr * Kt_bytes))) + Nc_blocks = 1 + else: + # Strategy 2: Kt is too large to hold A (Mc x Kt) in L2, we reuse + # A (Mc x Kc) in L2 by B (Kc x Nc). C (Mc x Nc) resides in L2. + Mc_blocks = Mt_blocks + Nc_blocks = min(math.ceil(Mc_blocks * Mr / Nr), Nt_blocks) + Nc_bytes = Nc_blocks * Nr * 4 # assume C or acc is float32/int32 + Kc_bytes = Kc_blocks * Kr * num_byte_A + if Mc_blocks * Mr * (Kc_bytes + Nc_bytes) > L2: + # The following is the solution for 4*Mc*Nc + Mc*Kc_bytes = L2, + # assuming Mc == Nc for good data reuse. + M_max = (math.sqrt(Kc_bytes * Kc_bytes + 16 * L2) - Kc_bytes) / 8 + if M_max < Mc_blocks * Mr: + Mc_blocks = math.floor(M_max / Mr) + Nc_blocks = min(math.ceil(Mc_blocks * Mr / Nr), Nt_blocks) + + return Mc_blocks, Nc_blocks, Kc_blocks + + assert not self.is_dynamic_M, ( + "Unable to determine cache blocking for dynamic M." + ) + register_blocking = self.register_blocking + thread_blocking = self.thread_blocking(num_threads) + + return GemmBlocking(*get_cache_blocking(register_blocking, thread_blocking)) + + def log_blockings(self): + log.debug(f"Register blocking: {self.register_blocking}") # noqa: G004 + if self.is_dynamic_M: + # thread and cache blockings are determined at runtime for dynamic shapes + return + log.debug( + f"Cache blocking: {self.cache_blocking(self.num_threads)}" # noqa: G004 + ) + thread_blocking = self.thread_blocking(self.num_threads) + log.debug(f"Thread blocking: {thread_blocking}") # noqa: G004 + + def get_occupancy(): + m_blocks = math.ceil(self.m / self.register_blocking.block_m) + n_blocks = math.ceil(self.n / self.register_blocking.block_n) + k_blocks = math.ceil(self.k / self.register_blocking.block_k) + m = math.ceil(m_blocks / thread_blocking.block_m) + n = math.ceil(n_blocks / thread_blocking.block_n) + k = math.ceil(k_blocks / thread_blocking.block_k) + return (m, n, k) + + log.debug( + f"Number of threads: {self.num_threads}, occupancy: {get_occupancy()}" # noqa: G004 + ) + + def maybe_k_slicing(self): + if self.num_threads == 1: + return False + if self.is_dynamic_M: + # TODO(jgong5): perhaps use size hint to decide? + return True + register_blocking = self.register_blocking + k_blocks = math.ceil(self.k / register_blocking.block_k) + thread_blocking = self.thread_blocking(self.num_threads) + return k_blocks > thread_blocking.block_k + + @classmethod + def add_choices( + cls, + choices, + layout, + input_nodes, + beta=1, + alpha=1, + has_bias=False, + trans_w=False, + input_indices=None, + epilogue_creator: Optional[Callable[[ir.Buffer], ir.Pointwise]] = None, + act_mapping: Optional[dict[int, ir.IRNode]] = None, + ): + """ + Add choices for the GEMM template. + """ + # Fast path to save the epilogue calculation when x_scale/x_zp/w_scale are constant + use_int8_fast_compensation_path = _is_int8_gemm(input_nodes) and all( + ( + isinstance(input_nodes[idx], ir.TensorBox) + and isinstance(input_nodes[idx].data.data, ir.ConstantBuffer) + ) + for idx in [1, 2, 4] + ) + + if input_indices is None: + input_indices = list(range(len(input_nodes))) + + def reorder_and_filter(inputs, layout_or_out): + if has_bias: + assert len(input_indices) >= 3 + # Assume the input order is [inp, x, w] and we reorder it to [x, w, inp] + inp_idx = input_indices[0] + x_idx = input_indices[1] + w_idx = input_indices[2] + return [ + inputs[x_idx], + inputs[w_idx], + inputs[inp_idx], + *[inputs[idx] for idx in input_indices[3:]], + ], layout_or_out + elif len(inputs) >= len(input_indices): + assert len(input_indices) >= 2 + return [inputs[idx] for idx in input_indices], layout_or_out + else: + # For when input is used for x and w, i.e. X@X.T or similar + # Assumes the first input is the only input + assert len(inputs) == 1 + return [inputs[0]] * len(input_indices), layout_or_out + + new_inputs, new_layout = reorder_and_filter(input_nodes, layout) + is_mkldnn_wgt = ( + new_inputs[1].get_name() in V.graph.constants + and V.graph.constants[new_inputs[1].get_name()].is_mkldnn + ) + if is_mkldnn_wgt: + # It shouldn't happen as viewing an mkldnn tensor, we can extend the + # implementation if it does. + assert not isinstance(new_inputs[1], ir.BaseView) + # Note that the layout of MKLDNN Tensor is with the wrong stride + view_size = new_inputs[1].layout.size + view_stride = new_inputs[1].layout.stride + view_offset = new_inputs[1].layout.offset + + def maybe_to_dense(inputs, layout_or_out): + new_inputs = list(inputs) + if isinstance(inputs[1], torch.Tensor): + W = inputs[1] + new_inputs[1] = W.to_dense() if W.is_mkldnn else W + return new_inputs, layout_or_out + + def normalize_shapes(inputs, layout_or_out): + new_inputs = list(inputs) + if not is_mkldnn_wgt and isinstance(new_inputs[1], torch.Tensor): + if has_free_symbols(view_size): + # If batch size B is dynamic, we need to set the batch size and possibly stride + assert not has_free_symbols(view_size[1:]) + view_size[:] = V.graph.sizevars.size_hints(view_size) + view_stride[:] = V.graph.sizevars.size_hints(view_stride) + # With the assumptation that W is the storage of unwrap view + # thus view it back here + new_inputs[1] = new_inputs[1].as_strided( + view_size, view_stride, view_offset + ) + + if not trans_w: + return new_inputs, layout_or_out + X = new_inputs[0] + W = new_inputs[1] + B = new_inputs[2] if has_bias else None + W = transpose_w(W, trans_w) + B = expand_bias(B, X) # type:ignore[arg-type] + new_inputs[1] = W + if B is not None: + new_inputs[2] = B + return new_inputs, layout_or_out + + # TODO(jgong5): decide proper number of threads per problem size + num_threads = parallel_num_threads() + new_inputs, _ = normalize_shapes(*maybe_to_dense(new_inputs, new_layout)) + m, n, k, *_ = mm_args( + new_inputs[0], + new_inputs[1], + mat2_transposed=cls.is_woq_int4(), + use_4x2_dim=cls.is_woq_int4(), + ) + output_dtype, compute_dtype = get_gemm_template_output_and_compute_dtype( + new_inputs[0].get_dtype() + ) + micro_gemm = create_micro_gemm( + "micro_gemm", + m, + n, + k, + input_dtype=new_inputs[0].get_dtype(), + input2_dtype=new_inputs[1].get_dtype(), + output_dtype=output_dtype, + compute_dtype=compute_dtype, + alpha=alpha, + num_threads=num_threads, + use_ref=not cls.is_woq_int4(), + q_group_size=cls.q_group_size(), + ) + assert micro_gemm is not None + pre_block_weights = cls.check_if_block_weight(new_inputs[1], micro_gemm) + micro_gemm.use_local_vnni_blocking(not pre_block_weights) + only_one_input = ( + input_nodes[0] == input_nodes[1] if len(input_nodes) > 1 else False + ) and not pre_block_weights # If weights are blocked, use the second input + + def preprocessor(inputs, layout): + new_inputs, new_layout = normalize_shapes( + *maybe_to_dense(*reorder_and_filter(inputs, layout)) + ) + if only_one_input and isinstance(new_inputs[0], torch.Tensor): + return new_inputs[1:], new_layout + return cls.prep_weight( + new_inputs, + new_layout, + # pyrefly: ignore [bad-argument-type] + micro_gemm, + pre_block_weights, + use_int8_fast_compensation_path, + ) + + def postprocessor(output): + if isinstance(output, ir.TensorBox): + # prepack the weight as input to the template buffer + template_buffer = ir.InputsKernel.unwrap_storage_for_input(output) + assert isinstance(template_buffer, ir.CppTemplateBuffer) + new_input_nodes, _ = reorder_and_filter(input_nodes, layout) + + W_node = new_input_nodes[1] + if W_node.get_name() not in V.graph.constants: + return output + W = V.graph.constants[W_node.get_name()] + new_input_nodes[1] = W + new_input_nodes, new_layout = normalize_shapes( + *maybe_to_dense(new_input_nodes, layout) + ) + new_input_nodes, _ = cls.prep_weight( + new_input_nodes, + new_layout, + # pyrefly: ignore [bad-argument-type] + micro_gemm, + pre_block_weights, + use_int8_fast_compensation_path, + skip_int8_compensation=True, + ) + W_packed = new_input_nodes[1] + W_packed_constant = V.graph.add_tensor_constant(W_packed) + new_input_nodes[1] = W_packed_constant + + # Prune unused tensors + prune_tensors(input_nodes, new_input_nodes) + + template_buffer.inputs[1] = ir.InputsKernel.unwrap_storage_for_input( + W_packed_constant + ) + return output + + template = DataProcessorTemplateWrapper( + cls, + preprocessor, + postprocessor, + input_nodes=input_nodes, + layout=layout, + num_threads=num_threads, + register_blocking=micro_gemm.register_blocking, + beta=beta, + alpha=alpha, + has_bias=has_bias, + epilogue_creator=epilogue_creator, + should_block_weights=pre_block_weights, + name=micro_gemm.__class__.__name__, + ) + template.maybe_append_choice(choices) + return template + + @staticmethod + def get_padded_size(n, block_n, k, should_block_weight): + padded_n = get_padded_n(n, block_n) + # We assume that all GEMM weight tensors should be blocked and padded + new_size = [padded_n // block_n, k, block_n] + return new_size, padded_n + + @staticmethod + def _maybe_remove_storage_offset(node: ir.IRNode): + if node.get_layout().offset == 0: + return node + # node may be contiguous but still have a non-zero storage offset. + # GEMM_TEMPLATE emits code like: + # W.data_ptr[node.offset + ...] + # but runtime W.data_ptr (after normalize_shapes()) already includes this offset. + # To avoid double-offsetting, we remove the offset in the node also in the generated code. + # W.data_ptr[...] + return ir.ExternKernel.copy_input(node) + + @classmethod + def prep_weight( + cls, + inputs, + layout: ir.Layout, + micro_gemm: CppMicroGemm, + should_block_weight: bool, + use_int8_fast_compensation_path: bool = False, + skip_int8_compensation: bool = False, + ): + """ + NOTE Weight prep consists of 2 separate steps: + 1. Blocking the weight tensor into a 3D shape: [n//block_n, k, block_n] + This is always done if the weight tensor is constant, i.e. for all GEMM and some BMM. + For BMM, we also block non-contiguous weight tensors, since they would be reshaped anyway. + This assumes that blocked, contiguous weights will be more efficient for the GEMM kernel, + and is worth the overhead of reshape and blocking. + + This blocking includes additional padding, when n is not a multiple of block_n. + This padding allows a more efficient microkernel implementation. For BMM, this is only done + if reshape would happen anyway, i.e. if the weight tensor is constant, is not contiguous, + or is using AMX VNNI layout. + 2. Packing the weight tensor into a VNNI-friendly shape. For constant input, + this is done at the same time as the weight blocking. + + At compile time, the constant weight tensors are blocked and packed. For non-constant tensors (e.g. BMM) + which will be blocked (non-contiguous or VNNI-layout tensors), the weight tensor is blocked and packed at runtime. + + CppBmmTemplate overrides the methods get_padded_size, and block_weight in order to accommodate + an additional dimension for the batch size and to determine if the weight tensor should be blocked. + """ + W = inputs[1] + new_inputs = list(inputs) + if cls.is_woq_int4(): + assert ( + len(W.get_size()) == 2 + if isinstance(W, ir.IRNode) + else len(W.shape) == 2 + ) + n, k = W.get_size() if isinstance(W, ir.IRNode) else W.shape + else: + k, n = W.get_size()[-2:] if isinstance(W, ir.IRNode) else W.shape[-2:] + _, block_n, _ = micro_gemm.register_blocking + new_size, padded_n = cls.get_padded_size(n, block_n, k, should_block_weight) + padding = padded_n - n + + if should_block_weight and not cls.is_woq_int4(): + blocked_w = cls.block_weight(W, new_size, padding) + new_inputs[1] = cls.pack_vnni_weight(blocked_w, micro_gemm, new_size) + elif should_block_weight: + assert cls.is_woq_int4() + new_inputs[1] = cls.block_weight(W, new_size, padding) + elif isinstance(W, ir.IRNode): + # Require W layout to be fixed & contiguous, happens inplace. + ir.ExternKernel.require_contiguous(W) + new_inputs[1] = cls._maybe_remove_storage_offset(W) + + if not skip_int8_compensation and _is_int8_gemm(new_inputs): + BCompensate = None + x_w_scale = None + + def _get_compensation_node(W, use_int8_fast_compensation_path): + BCompensate = V.graph.add_tensor_constant( + V.graph.constants[W.get_name() + "_BMatrixCompens"], + W.get_name() + "_BMatrixCompens", + ) + x_w_scale = None + if use_int8_fast_compensation_path: + x_w_scale = V.graph.add_tensor_constant( + V.graph.constants[W.get_name() + "_x_w_compens"], + W.get_name() + "_x_w_compens", + ) + return BCompensate, x_w_scale + + if use_int8_fast_compensation_path: + # new_inputs has been reordered: [x, w, optional[bias], x_scale, x_zp, w_scale, w_zp] + x_scale = new_inputs[-4] + x_zp = new_inputs[-3] + w_scale = new_inputs[-2] + if isinstance(W, ir.IRNode): + BCompensate, x_w_scale = _get_compensation_node( + W, use_int8_fast_compensation_path + ) + else: + # Use the original W, not the blocked_w in new_inputs[1] to calculate BCompensate + BCompensate = torch.sum(W.to_dense().to(torch.float), dim=0) # type: ignore[assignment] + assert all( + isinstance(item, torch.Tensor) + for item in (x_scale, x_zp, w_scale) + ) + BCompensate = BCompensate * x_scale * w_scale * x_zp + x_w_scale = x_scale * w_scale + new_inputs.append(BCompensate) + new_inputs.append(x_w_scale) + else: + if isinstance(W, ir.IRNode): + BCompensate, _ = _get_compensation_node( + W, use_int8_fast_compensation_path + ) + else: + # Use the original W, not the blocked_w in new_inputs[1] to calculate BCompensate + BCompensate = torch.sum(W.to_dense().to(torch.float), dim=0) # type: ignore[assignment] + new_inputs.append(BCompensate) + return new_inputs, layout + + @staticmethod + def check_if_block_weight(W, micro_gemm): + return True + + @classmethod + def block_weight(cls, W, new_size, padding): + # These are separated into two methods to allow subclasses to override them separately + if isinstance(W, ir.IRNode): + if W.get_name() in V.graph.constants: + # Create a new buffer, representing the constant blocked tensor + blocked_w = ir.Buffer( + name=W.get_name(), # Borrow the registered buffer name + layout=ir.FixedLayout( + W.get_device_or_error(), + W.get_dtype(), + new_size, + ir.FlexibleLayout.contiguous_strides(new_size), + 0, + ), + ) + else: + if not isinstance(W, ir.TensorBox): + W = ir.TensorBox(W) + permute_dims = list(range(len(new_size))) + permute_dims[-2], permute_dims[-3] = permute_dims[-3], permute_dims[-2] + permute_size = list(new_size) + permute_size[-2], permute_size[-3] = permute_size[-3], permute_size[-2] + blocked_w = L.constant_pad_nd(W, (0, padding)) + blocked_w = L.permute( + L.view(blocked_w, permute_size), # type: ignore[arg-type] + permute_dims, + ) + else: + assert isinstance(W, torch.Tensor) + # Pad the weight tensor and reshape it into a 3D blocked shape + blocked_size = list(new_size) + blocked_size[-2], blocked_size[-3] = blocked_size[-3], blocked_size[-2] + blocked_w = ( + torch.nn.functional.pad(W, (0, padding)) # type: ignore[assignment] + .reshape(*blocked_size) + .transpose(-3, -2) + .contiguous() + ) + return blocked_w + + @classmethod + def pack_vnni_weight(cls, W, micro_gemm, new_size): + # WOQ INT4 weights are reordered in microkernel so do not pack them here + should_pack = ( + micro_gemm.get_b_layout() != LayoutType.NORMAL + and not micro_gemm.is_woq_int4() + ) + + # These are separated into two methods to allow subclasses to override them separately + if isinstance(W, ir.IRNode): + if isinstance(W, ir.Buffer) and W.get_name() in V.graph.constants: + return W + k = new_size[-2] + if not isinstance(W, ir.TensorBox): + W = ir.TensorBox(W) + if should_pack: + permute_dims = list(range(len(new_size) + 1)) + permute_dims[-1], permute_dims[-2] = permute_dims[-2], permute_dims[-1] + vnni_size = 4 if micro_gemm.get_b_layout() == LayoutType.VNNI4 else 2 + vnni_view_size = list(new_size) + vnni_view_size[-2] = k // vnni_size + vnni_view_size.insert(-1, vnni_size) + W = L.view( + L.permute(L.view(W, vnni_view_size), permute_dims), + new_size, + ) + W = ir.ExternKernel.realize_input(W) + W = ir.ExternKernel.require_contiguous(W) + return W + else: + k = new_size[-2] + # Apply VNNI packing to the weight tensor + if should_pack: + # TODO: Move VNNI weight packing for non-constant tensors into the template, + # to improve cache locality and avoid full-tensor copy. + layout_str = ( + "VNNI4" + if micro_gemm.get_b_layout() == LayoutType.VNNI4 + else "VNNI2" + ) + assert micro_gemm.get_b_layout() in [ + LayoutType.VNNI2, + LayoutType.VNNI4, + ], f"We only support {layout_str} for now" + vnni_size = 4 if micro_gemm.get_b_layout() == LayoutType.VNNI4 else 2 + assert k % vnni_size == 0, ( + f"k should be divisible by vnni_size for {layout_str} layout" + ) + vnni_view_size = list(new_size) + vnni_view_size[-2] = k // vnni_size + vnni_view_size.insert(-1, vnni_size) + W = W.view(vnni_view_size).transpose(-1, -2).contiguous().view(new_size) + # normalize stride to be "contiguous_strides" per size + # this avoids the problems in L.view during template codegen + new_stride = [1] + for sz in reversed(W.shape[1:]): + new_stride.insert(0, new_stride[0] * sz) + W = W.as_strided(W.shape, new_stride) + return W + + def get_default_reindexers(self, epilogue_nodes): + return [None] * len(epilogue_nodes) + + def get_options( + self, + kernel: CppTemplateKernel, + template_buffer_node: Optional[ir.CppTemplateBuffer] = None, + flag_template_buffer_has_other_users: Optional[bool] = None, + epilogue_nodes: Optional[list[ir.IRNode]] = None, + ) -> dict[str, Any]: + assert len(self.input_nodes) >= 2 + + int8_gemm = self.input_nodes[0].get_dtype() in [torch.uint8, torch.int8] + x_scale = None + x_zp = None + w_scale = None + w_zp = None + inp = None + q_group_size_node = None + qscale_and_zeros = None + if int8_gemm: + X, W = self.input_nodes[0], self.input_nodes[1] + bias_idx = 2 if self.has_bias else 1 + inp = self.input_nodes[bias_idx] if self.has_bias else None + x_scale = self.input_nodes[bias_idx + 1] + x_zp = self.input_nodes[bias_idx + 2] + w_scale = self.input_nodes[bias_idx + 3] + w_zp = self.input_nodes[bias_idx + 4] + Y = self.output_node + elif self.is_woq_int4(): + X, W = self.input_nodes[0], self.input_nodes[1] + Y = self.output_node + q_group_size_node = self.input_nodes[2] + qscale_and_zeros = self.input_nodes[3] + else: + X, W = self.input_nodes[0], self.input_nodes[1] + Y = self.output_node + inp = self.input_nodes[2] if self.has_bias else None + + template_buffer_has_other_users = None + + if template_buffer_node is not None: + # Use the updated prepacked weight buffer + W = template_buffer_node.inputs[1] + Y = template_buffer_node + + assert flag_template_buffer_has_other_users is not None + template_buffer_has_other_users = flag_template_buffer_has_other_users + + template_buffer = Y + gemm_output_buffer = template_buffer + + epilogues: list[ir.IRNode] = [] + reindexers: list[Optional[Callable[[list[Any]], list[Any]]]] = [] + epilogue_creators: list[Callable[[ir.Buffer], ir.Pointwise]] = [] + fake_buffers: list[ir.Buffer] = [] + Y_aliases: OrderedSet[str] = OrderedSet() + + use_local_acc = ( + self.layout.dtype != torch.float + or template_buffer_has_other_users + or int8_gemm + or self.padded_n != self.n + or self.maybe_k_slicing() + or (epilogue_nodes and epilogue_nodes[-1].get_dtype() != self.layout.dtype) + ) + + # TODO(jgong5): for int8 gemm, bias-add is handled outside of gemm template, + # but we'd better move it here to align with fp. + if inp is not None and self.beta != 0 and not int8_gemm: + # add an epilogue for bias add + def _bias_add_epilogue(buf): + return create_epilogue_with_attr( + buf, "bias_add", other=inp, beta=self.beta, dtype=self.layout.dtype + ) + + epilogue_creators.append(_bias_add_epilogue) + + if self.epilogue_creator is not None: + epilogue_creators.append(self.epilogue_creator) + + # When the GEMM output buffer is localized but it has users other than the epilogue nodes, + # we need to copy the value in the GEMM output local buffer to a global buffer. + def need_copy_from_local_to_global_buffer_epilogue( + use_local_acc, template_buffer_has_other_users, epilogue_creators + ): + # The GEMM output buffer is a global buffer, thus copy is not needed. + if not use_local_acc: + return False + + # The possible value of template_buffer_has_other_users is (None, False, True) + # It is None when generating the gemm template during autotune and it will have value during scheduler codegen. + # extra copy_from_local_to_global_buffer_epilogue is not needed in either of the below two cases: + # 1. template_buffer_has_other_users is None (i.e. when doing the codegen during autotune) + # 2. template_buffer_has_other_users is False, which means it's safe to keep the value in the + # GEMM output buffer in local buffer only (no users outside of the epilogues will use its value). + if not template_buffer_has_other_users: + return False + + # When bias is not None or self.epilogue_creator is not None, + # there will be epilogue_creators after the GEMM. + # The GEMM output buffer is localized while + # the output buffer of the epilogue_creators is a global buffer. + if epilogue_creators: + return False + + return True + + if need_copy_from_local_to_global_buffer_epilogue( + use_local_acc, template_buffer_has_other_users, epilogue_creators + ): + + def copy_from_local_to_global_buffer_epilogue(input_buffer: ir.Buffer): + dtype = self.layout.dtype + input_loader = input_buffer.make_loader() + + def copy_inner(index): + input = input_loader(index) + result = ops.to_dtype(input, dtype) + return result + + return ir.Pointwise( + device=input_buffer.get_device_or_error(), + dtype=self.layout.dtype, + inner_fn=copy_inner, + ranges=input_buffer.get_size(), + ) + + epilogue_creators.append(copy_from_local_to_global_buffer_epilogue) + + # NOTE [How CPP GEMM template epilogues are organized] + # gemm_output_buffer + # --> zero or more in-template epilogues (created by `epilogue_creators`) --> + # template_buffer + # --> zero or more out-of-template epilogues (`epilogue_nodes`) --> + # Y + if epilogue_creators: + assert isinstance(template_buffer, ir.IRNode) + gemm_output_name = f"{template_buffer.get_name()}_GemmOut" + gemm_output_buffer = ir.Buffer( + name=gemm_output_name, + # pyrefly: ignore [missing-attribute] + layout=template_buffer.layout, + ) + current_input_buffer = gemm_output_buffer + for i, creator in enumerate(epilogue_creators): + if i == len(epilogue_creators) - 1: + buffer_name = template_buffer.get_name() + else: + buffer_name = f"{gemm_output_name}_epilogue_{i}" + epilogues.append( + ir.ComputedBuffer( + name=buffer_name, + # pyrefly: ignore [missing-attribute] + layout=template_buffer.layout, + data=creator(current_input_buffer), + ) + ) + fake_buffers.append(current_input_buffer) + Y_aliases.add(current_input_buffer.get_name()) + reindexers.append(None) + if i < len(epilogue_creators) - 1: + current_input_buffer = ir.Buffer( + name=buffer_name, + # pyrefly: ignore [missing-attribute] + layout=template_buffer.layout, + ) + + assert isinstance(Y, (ir.Buffer, ir.ReinterpretView)) + Y_2d: Union[ir.Buffer, ir.ReinterpretView] = Y + + if epilogue_nodes: + if not template_buffer_has_other_users: + assert isinstance(template_buffer, ir.IRNode) + Y_aliases.add(template_buffer.get_name()) + epilogues.extend(epilogue_nodes) + assert Y.get_numel() == epilogues[-1].get_numel() + Y = cast(ir.Buffer, epilogues[-1]) + assert isinstance(template_buffer, ir.Buffer) + Y_2d, reindexers = gen_2d_view_of_epilogue_buf( + Y, + template_buffer, + epilogue_nodes, + reindexers, + default_reindexers=self.get_default_reindexers(epilogue_nodes), + ) + + output_dtype, compute_dtype = get_gemm_template_output_and_compute_dtype( + X.get_dtype() + ) + micro_gemm = create_micro_gemm( + f"{kernel.kernel_name}_micro_gemm", + self.m, + self.n, + self.k, + input_dtype=X.get_dtype(), + # pyrefly: ignore [missing-attribute] + input2_dtype=W.get_dtype(), + output_dtype=output_dtype, + compute_dtype=compute_dtype, + alpha=self.alpha, + num_threads=self.num_threads, + use_ref=not self.is_woq_int4(), + q_group_size=self.q_group_size(), + ) + assert micro_gemm is not None + micro_gemm.use_local_vnni_blocking(not self.should_block_weights) + assert self.register_blocking == micro_gemm.register_blocking + self.log_blockings() + if isinstance(micro_gemm, CppMicroGemmAMX): + counters["inductor"]["cpp_micro_gemm_amx_counter"] += 1 + if isinstance(micro_gemm, CppMicroBrgemm): + counters["inductor"]["cpp_micro_brgemm_counter"] += 1 + + L1_cache_size = torch._C._cpu._L1d_cache_size() # per core cache size in Bytes + assert L1_cache_size > 0, f"Expect L1_cache_size > 0 but got {L1_cache_size}" + + L2_cache_size = torch._C._cpu._L2_cache_size() # per core cache size in Bytes + assert L2_cache_size > 0, f"Expect L2_cache_size > 0 but got {L2_cache_size}" + + options = dict( + X=X, + W=W, + inp=inp, + Y=Y, + N=self.n, + K=self.k, + PADDED_N=self.padded_n, + GemmOut=gemm_output_buffer, + aliases={alias: Y.get_name() for alias in Y_aliases}, + beta=self.beta, + alpha=self.alpha, + num_threads=self.num_threads, + micro_gemm=micro_gemm, + is_dynamic_M=self.is_dynamic_M, + template=self, + kernel=kernel, + export_declaration=get_export_declaration(), + epilogue_nodes=epilogues, + reindexers=reindexers, + Y_2d=Y_2d, + use_local_acc=use_local_acc, + maybe_k_slicing=self.maybe_k_slicing(), + x_scale=x_scale, + x_zp=x_zp, + w_scale=w_scale, + w_zp=w_zp, + acc_buf_dtype=torch.int32 if int8_gemm else torch.float, + DTYPE_TO_CPP=DTYPE_TO_CPP, + L1_cache_size=L1_cache_size, + L2_cache_size=L2_cache_size, + config=config, + fake_buffers=fake_buffers, + is_woq_int4=self.is_woq_int4(), + q_group_size=q_group_size_node, + qscale_and_zeros=qscale_and_zeros, + ) + return options + + def is_int8_woq_gemm_small_m_dim( + self, + X: ir.ReinterpretView, + W: ir.ReinterpretView, + N, + K, + micro_gemm, + ): + """Use SMALL_M_GEMM_TEMPLATE""" + return ( + isinstance(micro_gemm, CppMicroGemmFP32Vec) + and is_int8_woq_gemm_small_m_dim_corner_case( + micro_gemm, X.get_size()[0], N, K + ) + and X.get_dtype() is torch.bfloat16 + and W.get_dtype() is torch.int8 + ) + + def render( # type: ignore[override, return] + self, + kernel: CppTemplateKernel, + template_buffer_node: Optional[ir.CppTemplateBuffer] = None, + flag_template_buffer_has_other_users: Optional[bool] = None, + epilogue_nodes: Optional[list[ir.IRNode]] = None, + **kwargs, + ) -> str: + options = self.get_options( + kernel=kernel, + template_buffer_node=template_buffer_node, + flag_template_buffer_has_other_users=flag_template_buffer_has_other_users, + epilogue_nodes=epilogue_nodes, + ) + self.render_options = options + + with contextlib.ExitStack() as stack: + for buf in options["fake_buffers"]: + stack.enter_context( + patch.object(V.graph, "get_dtype", self._fake_get_dtype(buf)) + ) + if not options["is_dynamic_M"] and self.is_int8_woq_gemm_small_m_dim( + options["X"], + options["W"], + options["N"], + options["K"], + options["micro_gemm"], + ): + template_str = SMALL_M_GEMM_TEMPLATE + else: + template_str = GEMM_TEMPLATE + return self._template_from_string(template_str).render(**options) + + def codegen_blocks( + self, + num_threads, + N, + K, + micro_gemm, + is_dynamic_M, + kernel, + GemmOut, + config, + L1_cache_size, + L2_cache_size, + X, + W, + ): + options = dict( + num_threads=num_threads, + N=N, + K=K, + micro_gemm=micro_gemm, + is_dynamic_M=is_dynamic_M, + kernel=kernel, + GemmOut=GemmOut, + config=config, + L1_cache_size=L1_cache_size, + L2_cache_size=L2_cache_size, + template=self, + X=X, + W=W, + is_woq_int4=self.is_woq_int4(), + ) + template_str = GEMM_TEMPLATE_INIT_BLOCKING_BASIC_BLOCK + if not ( + not is_dynamic_M + and self.is_int8_woq_gemm_small_m_dim(X, W, N, K, micro_gemm) + ): + template_str += GEMM_TEMPLATE_INIT_BLOCKING_EXTENDED + return self._template_from_string(template_str).render(options) + + def codegen_microkernel_def(self): + return self._template_from_string(GEMM_TEMPLATE_MICROKERNEL_DEF).render( + self.render_options + ) + + def codegen_gemm_stub_def(self): + microkernel = self.codegen_microkernel_def() + return microkernel + self._template_from_string(GEMM_TEMPLATE_STUB_DEF).render( + self.render_options + ) + + def codegen_multi_threads_params(self): + return self._template_from_string(GEMM_TEMPLATE_MULTI_THREADS_PARAMS).render() + + def codegen_single_thread_params(self, is_dynamic_M): + options = dict( + is_dynamic_M=is_dynamic_M, + ) + return self._template_from_string(GEMM_TEMPLATE_SINGLE_THREAD_PARAMS).render( + options + ) + + def codegen_m_loop_params(self): + return self._template_from_string(GEMM_TEMPLATE_M_LOOP_PARAMS).render() + + def codegen_n_loop_params(self): + return self._template_from_string(GEMM_TEMPLATE_N_LOOP_PARAMS).render() + + @classmethod + def is_woq_int4(cls): + return False + + @classmethod + def q_group_size(cls): + return None + + +class CppWoqInt4GemmTemplateMeta(type): + def __getitem__(cls, q_group_size): + class CppWoqInt4GemmTemplateInstance(CppGemmTemplate): + def __init__( + self, + *args, + **kwargs, + ) -> None: + super().__init__( + *args, + **kwargs, + ) + + @classmethod + def is_woq_int4(cls): + return True + + @classmethod + def q_group_size(cls): + return q_group_size + + @staticmethod + def check_if_block_weight(W, micro_gemm): + # For WOQ INT4, weight is already packed + # However, for AMX microkernel, we want to change the blocking of weight + from .cpp_micro_gemm import CppMicroGemmWoQInt4Amx + + return isinstance(micro_gemm, CppMicroGemmWoQInt4Amx) + + @classmethod + def block_weight(cls, W, new_size, padding): + # This method is called only if AMX microkernels are used. + # In this case, we unpack and repack weight so that block_n=32 + # the format of packed weight is described here: + # https://github.com/pytorch/pytorch/blob/32eee8ed225d9f10fbbcb38c24b8b44c24c0c97c/aten/src/ATen/native/cpu/int4mm_kernel.cpp#L583 + if isinstance(W, ir.IRNode): + # in this case, we do nothing + ir.ExternKernel.require_contiguous(W) + blocked_w = W + else: + # in this case, we unpack and repack weight + assert isinstance(W, torch.Tensor) + assert W.dim() == 2 + N = W.size(0) + K = W.size(-1) * 2 + G = cls.q_group_size() + # x and qscales_and_zeros are in bfloat16 instead of float to use the optimized kernel + # so that the unpacking process is faster + x = torch.eye(K).bfloat16() + # Here we use scale=1 and qzero=8 because we want to unpack weight + # without dequantizing it. The qzero here is 8 instead of 0 because + # int4 values are converted to [-7, 8] in the _weight_int4pack_mm_for_cpu kernel: + # https://github.com/pytorch/pytorch/blob/32eee8ed225d9f10fbbcb38c24b8b44c24c0c97c/aten/src/ATen/native/cpu/int4mm_kernel.cpp#L95 + qscales_and_zeros = ( + torch.tensor([1.0, 8.0]) + .bfloat16() + .expand(K // G, N, 2) + .contiguous() + ) + # shape: [K, N] + unpacked_w = torch.ops.aten._weight_int4pack_mm_for_cpu( + x, + W, + G, + qscales_and_zeros, + ).to(torch.uint8) + block_n = 32 + # shape: [N // block_n, K, block_n] + w_blocked = ( + unpacked_w.view(K, N // block_n, block_n) + .permute(1, 0, 2) + .contiguous() + ) + # pack 2 int4 -> 1 int8 + # block_n: [a0, a1, ..., a15, b0, b1, ..., b15] + # -> [(a0 & 0xf) | (b0 << 4), (a1 & 0xf) | (b1 << 4), ...] + # shape: [N // block_n, K, 2, block_n // 2] + w_blocked = w_blocked.view(N // block_n, K, 2, block_n // 2) + # shape: [N // block_n, K, block_n // 2] + w_blocked_packed = (w_blocked[:, :, 0, :] & 0xF) | ( + w_blocked[:, :, 1, :] << 4 + ) + # shape: [N, K // 2] + blocked_w = w_blocked_packed.view(N, K // 2) + + return blocked_w + + return CppWoqInt4GemmTemplateInstance + + +class CppWoqInt4GemmTemplate(metaclass=CppWoqInt4GemmTemplateMeta): + pass diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_grouped_gemm_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_grouped_gemm_template.py new file mode 100644 index 0000000000000000000000000000000000000000..abea505b2d069a26c2d1ed181e217a88fb61d0d4 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_grouped_gemm_template.py @@ -0,0 +1,511 @@ +import contextlib +import logging +from collections.abc import Callable +from typing import Any, cast, Optional, TypeVar +from unittest.mock import patch + +import torch +import torch.utils +from torch.utils._ordered_set import OrderedSet + +from ..._dynamo.utils import counters +from .. import config, ir +from ..kernel.mm_common import mm_args +from ..select_algorithm import ChoiceCaller, DataProcessorTemplateWrapper +from ..utils import parallel_num_threads +from ..virtualized import V +from .cpp import get_export_declaration +from .cpp_gemm_template import ( + CppGemmTemplate, + expand_bias, + gen_2d_view_of_epilogue_buf, + prune_tensors, + transpose_w, +) +from .cpp_micro_gemm import CppMicroGemmAMX, create_micro_gemm +from .cpp_template_kernel import CppTemplateKernel +from .cpp_utils import ( + create_epilogue_with_attr, + DTYPE_TO_CPP, + GemmBlocking, + get_gemm_template_output_and_compute_dtype, +) + + +log = logging.getLogger(__name__) + +GEMM_TEMPLATE = r""" +{{template.header().getvalue()}} +{{micro_gemm.codegen_define(kernel)}} + +extern "C" {{export_declaration}} +{{kernel.def_kernel(inputs=kernel_args, outputs=Y_list, aliases=aliases)}} +{ + {{kernel.maybe_codegen_profile()}} + {{ template.codegen_blocks( + num_threads, N, K, micro_gemm, is_dynamic_M, kernel, GemmOuts[0], config, L1_cache_size, L2_cache_size, X_list[0], W_list[0] + ) }} +{%- if num_threads > 1 %} + #pragma omp parallel num_threads({{num_threads}}) + { + {{ template.codegen_multi_threads_params()|indent(8, false) }} +{%- else %} + { + {{ template.codegen_single_thread_params(is_dynamic_M)|indent(8, false) }} +{%- endif %} + {{ micro_gemm.codegen_init(kernel) }} +{%- set acc_buf_name_list=[] %} +{%- set acc_buf_name_prefix = "local_acc_buf_" %} +{%- for gemm_idx in range(0, gemm_grouped_num, 1) %} + {%- set acc_buf_name = acc_buf_name_prefix + gemm_idx|string %} + {{ kernel.define_buffer(acc_buf_name, ["Mc_blocks*Mr", "Nc_blocks*Nr"], acc_buf_dtype) }} + {%- set acc_buf_name_list=acc_buf_name_list.append(acc_buf_name) %} +{%- endfor %} + for (int64_t mc_block_id = 0; mc_block_id < num_Mc_blocks_per_thread; mc_block_id++) { + {{ template.codegen_m_loop_params()|indent(12, false) }} + for (int64_t nc = n_block_start; nc < n_block_end; nc += Nc_blocks) { + {{ template.codegen_n_loop_params()|indent(16, false) }} +{%- set acc_list=[] %} +{%- for gemm_idx in range(0, gemm_grouped_num, 1) %} + {%- set acc_list = acc_list.append( kernel.local_buffers[acc_buf_name_list[gemm_idx]] ) %} + {{ kernel.reinit_buffer_if_null(acc_buf_name_list[gemm_idx]) }} +{%- endfor %} + for (int64_t kc = k_block_start; kc < k_block_end; kc += Kc_blocks) { + int64_t k_start = kc * Kr; + int64_t k_end = std::min(std::min(kc + Kc_blocks, k_block_end) * Kr, K); +{%- set tile_X_list=[] %} +{%- for gemm_idx in range(0, gemm_grouped_num, 1) %} + {%- set tile_X_list = tile_X_list.append( kernel.slice_nd(X_list[gemm_idx], [("m_start", "m_end"), ("k_start", "k_end")]) ) %} +{%- endfor %} + for (int64_t nci = nc; nci < nc_block_end; nci++) { +{%- set tile_W_3d_list=[] %} +{%- set tile_W_list=[] %} +{%- set acc_slice_list=[] %} +{%- for gemm_idx in range(0, gemm_grouped_num, 1) %} + {%- set acc_slice_list = acc_slice_list.append( + kernel.slice_nd(acc_list[gemm_idx], [("0", "m_end - m_start"), ("(nci - nc)*Nr", "(nci - nc + 1)*Nr")]) + ) %} + {%- set tile_W_3d_list = tile_W_3d_list.append( + kernel.slice_nd(W_list[gemm_idx], [("nci", "nci + 1"), ("k_start", "k_end"), ()]) + ) %} +{%- endfor %} +{%- for gemm_idx in range(0, gemm_grouped_num, 1) %} + {%- set tile_W_list = tile_W_list.append( + kernel.view(tile_W_3d_list[gemm_idx], ["k_end - k_start", micro_gemm.register_blocking.block_n]) + ) %} +{%- endfor %} + if (kc == k_block_start) { + {%- for gemm_idx in range(0, gemm_grouped_num, 1) %} + {{ micro_gemm.codegen_call( + kernel, tile_X_list[gemm_idx], tile_W_list[gemm_idx], acc_slice_list[gemm_idx], accum=False + )|indent(28, false) }} + {%- endfor %} + } else { + {%- for gemm_idx in range(0, gemm_grouped_num, 1) %} + {{ micro_gemm.codegen_call( + kernel, tile_X_list[gemm_idx], tile_W_list[gemm_idx], acc_slice_list[gemm_idx], accum=True + )|indent(28, false) }} + {%- endfor %} + } + } + } + { +{%- set tile_acc_list = [] %} +{%- set tile_Y_list = [] %} +{%- for gemm_idx in range(0, gemm_grouped_num, 1) %} + {%- set tile_acc_list = tile_acc_list.append( + kernel.slice_nd(acc_list[gemm_idx], [("0", "m_end - m_start"), ("0", "n_end - n_start")]) + ) %} + {%- set tile_Y_list = tile_Y_list.append( + kernel.slice_nd(Y_2d_list[gemm_idx], [("m_start", "m_end"), ("n_start", "n_end")]) + ) %} +{%- endfor %} + {{ kernel.store_outputs( + tile_Y_list, + tile_acc_list, + GemmOuts, + epilogue_nodes, + offsets=("m_start", "n_start"), + reindexers=reindexers, + multi_output_buffers=multi_output_buffers + )|indent(20, false) + }} + } + } + } + {{ micro_gemm.codegen_finalize(kernel) }} + } +} +""" + + +def get_deduplicated_act(act_mapping: dict[int, ir.IRNode]) -> list[ir.IRNode]: + act_deduplicated = [] + act_deduplicated_name: OrderedSet[str] = OrderedSet() + for act_idx in range(len(act_mapping.values())): + act = act_mapping[act_idx] + if act.get_name() not in act_deduplicated_name: + act_deduplicated.append(act) + act_deduplicated_name.add(act.get_name()) + return act_deduplicated + + +class CppGroupedGemmTemplate(CppGemmTemplate): + def __init__( + self, + input_nodes: list[ir.IRNode], + layout: ir.Layout, + num_threads: int, + register_blocking: GemmBlocking, + beta: int = 1, + alpha: int = 1, + has_bias: bool = False, + epilogue_creator: Optional[Callable[[ir.Buffer], ir.Pointwise]] = None, + act_mapping: Optional[dict[int, ir.IRNode]] = None, + gemm_grouped_num: int = 1, + ) -> None: + """ + Template for Group of GEMMs: + * Each GEMM has the same dimensions (m, n, k) and the same leading dimensions (lda, ldb, ldc) + for their A, B, and C matrices. + * Each GEMM has distinct or shared activations, has distinct weight, has unique bias or no bias, has distinct epilogues. + * In the current implementation, the outputs of all GEMMs are accumulated using pointwise epilogues. + This behavior can be extended in the future if needed. + """ + super().__init__( + input_nodes, + layout, + num_threads, + register_blocking, + beta, + alpha, + has_bias, + epilogue_creator, + ) + self.act_mapping = act_mapping + self.gemm_grouped_num = gemm_grouped_num + # pyrefly: ignore [bad-override] + self.output_node: list[ir.Buffer] = [ + ir.Buffer(name="buf_out" + str(idx), layout=layout) + for idx in range(gemm_grouped_num) + ] + + @classmethod + # pyrefly: ignore [bad-override] + def add_choices( + cls, + choices: list[ChoiceCaller], + layout: ir.Layout, + input_nodes: list[ir.IRNode], + beta: int = 1, + alpha: int = 1, + has_bias: tuple[bool, ...] = (False, False), + trans_w: bool = False, + input_indices: Optional[list[int]] = None, + epilogue_creator: Optional[Callable[[ir.Buffer], ir.Pointwise]] = None, + act_mapping: Optional[dict[int, ir.IRNode]] = None, # gemm idx to its act buf + ) -> DataProcessorTemplateWrapper: + # Input nodes order: x, optional[x1], ... w0, w1, ... optional[b0], optional[b1], ... + gemm_grouped_num = len(has_bias) + assert act_mapping + act_deduplicated = get_deduplicated_act(act_mapping) + wgt_start_idx = len(act_deduplicated) + bias_start_idx = wgt_start_idx + gemm_grouped_num + input_indices = list(range(len(input_nodes))) + + _T = TypeVar("_T", ir.IRNode, torch.Tensor) + _U = TypeVar("_U", ir.Layout, torch.Tensor) + + def reorder_and_filter( + inputs: list[_T], + layout_or_out: _U, + ) -> tuple[list[_T], _U]: + assert input_indices is not None, "input_indices must be set" + return [inputs[idx] for idx in input_indices], layout_or_out + + new_inputs, new_layout = reorder_and_filter(input_nodes, layout) + + def maybe_to_dense( + inputs: list[_T], + layout_or_out: _U, + ) -> tuple[list[_T], _U]: + new_inputs = list(inputs) + for idx in range(wgt_start_idx, wgt_start_idx + gemm_grouped_num): + if isinstance(inputs[idx], torch.Tensor): + W = inputs[idx] + assert isinstance(W, torch.Tensor), "W must be a torch.Tensor" + # pyrefly: ignore [unsupported-operation] + new_inputs[idx] = W.to_dense() if W.is_mkldnn else W + return new_inputs, layout_or_out + + def normalize_shapes( + inputs: list[_T], + layout_or_out: _U, + ) -> tuple[list[_T], _U]: + new_inputs: list[_T] = list(inputs) + if not trans_w: + return new_inputs, layout_or_out + X = new_inputs[0] + for wgt_idx in range(wgt_start_idx, wgt_start_idx + gemm_grouped_num): + new_input = new_inputs[wgt_idx] + new_inputs[wgt_idx] = transpose_w(new_input, trans_w) + for bias_idx in range(bias_start_idx, len(new_inputs)): + # pyrefly: ignore [bad-argument-type] + new_bias = expand_bias(new_inputs[bias_idx], X) + assert new_bias is not None + # pyrefly: ignore [unsupported-operation] + new_inputs[bias_idx] = new_bias + return new_inputs, layout_or_out + + num_threads = parallel_num_threads() + new_inputs, _ = normalize_shapes(*maybe_to_dense(new_inputs, new_layout)) + m, n, k, *_ = mm_args(new_inputs[0], new_inputs[wgt_start_idx]) + output_dtype, compute_dtype = get_gemm_template_output_and_compute_dtype( + new_inputs[0].get_dtype() + ) + micro_gemm = create_micro_gemm( + "micro_gemm", + m, + n, + k, + input_dtype=new_inputs[0].get_dtype(), + input2_dtype=new_inputs[wgt_start_idx].get_dtype(), + output_dtype=output_dtype, + compute_dtype=compute_dtype, + alpha=alpha, + num_threads=num_threads, + ) + assert micro_gemm is not None + _, block_n, _ = micro_gemm.register_blocking + new_size, padded_n = cls.get_padded_size( + n, block_n, k, should_block_weight=True + ) + padding = padded_n - n + + def pack_weight( + inputs: list[_T], + layout_or_out: _U, + ) -> tuple[list[_T], _U]: + new_W_list = [] + new_inputs = list(inputs) + W_list = new_inputs[wgt_start_idx : wgt_start_idx + gemm_grouped_num] + for W in W_list: + blocked_w = cls.block_weight(W, new_size, padding) + new_W_list.append(cls.pack_vnni_weight(blocked_w, micro_gemm, new_size)) + new_inputs[wgt_start_idx : wgt_start_idx + gemm_grouped_num] = new_W_list + return new_inputs, layout_or_out + + def preprocessor( + inputs: list[_T], + layout: _U, + ) -> tuple[list[_T], _U]: + return pack_weight( + *normalize_shapes(*maybe_to_dense(*reorder_and_filter(inputs, layout))) + ) + + def postprocessor(output: _T) -> _T: + if isinstance(output, ir.TensorBox): + template_buffer = ir.InputsKernel.unwrap_storage_for_input(output) + assert isinstance(template_buffer, ir.CppTemplateBuffer) + new_input_nodes, _ = reorder_and_filter(input_nodes, layout) + W_nodes = new_input_nodes[ + wgt_start_idx : wgt_start_idx + gemm_grouped_num + ] + W_tensor = [] + for W_node in W_nodes: + assert W_node.get_name() in V.graph.constants + # pyrefly: ignore [bad-argument-type] + W_tensor.append(V.graph.constants[W_node.get_name()]) + new_input_nodes[wgt_start_idx : wgt_start_idx + gemm_grouped_num] = ( + W_tensor # type: ignore[assignment] + ) + new_input_nodes, _ = pack_weight( + *normalize_shapes(*maybe_to_dense(new_input_nodes, layout)) + ) + # Prune unused tensors + prune_tensors(input_nodes, new_input_nodes) + for idx in range(wgt_start_idx, wgt_start_idx + gemm_grouped_num): + W_packed = new_input_nodes[idx] + assert isinstance(W_packed, torch.Tensor) + W_packed_constant = V.graph.add_tensor_constant(W_packed) + template_buffer.inputs[idx] = ( + ir.InputsKernel.unwrap_storage_for_input(W_packed_constant) + ) + # pyrefly: ignore [bad-return] + return output + + template = DataProcessorTemplateWrapper( + CppGroupedGemmTemplate, + preprocessor, + postprocessor, + input_nodes=input_nodes, + layout=layout, + num_threads=num_threads, + register_blocking=micro_gemm.register_blocking, + beta=beta, + alpha=alpha, + has_bias=has_bias, + epilogue_creator=epilogue_creator, + act_mapping=act_mapping, + gemm_grouped_num=gemm_grouped_num, + ) + template.maybe_append_choice(choices) + return template + + def render( # type: ignore[override,return,no-untyped-def] + self, + kernel: CppTemplateKernel, + template_buffer_node: Optional[ir.CppTemplateBuffer] = None, + flag_template_buffer_has_other_users: Optional[bool] = None, + epilogue_nodes: Optional[list[ir.IRNode]] = None, + **kwargs, + ) -> str: + assert self.act_mapping + act_deduplicated = get_deduplicated_act(self.act_mapping) + wgt_start_idx = len(act_deduplicated) + bias_start_idx = wgt_start_idx + self.gemm_grouped_num + X_list = list(self.act_mapping.values()) + W_list = self.input_nodes[wgt_start_idx : wgt_start_idx + self.gemm_grouped_num] + inp_list = [] + cur_idx = bias_start_idx + for inp_idx in range(self.gemm_grouped_num): + inp = None + # pyrefly: ignore [index-error] + if self.has_bias[inp_idx]: + inp = self.input_nodes[cur_idx] + cur_idx += 1 + inp_list.append(inp) + + Y_list = self.output_node + multi_output_buffers = None + if template_buffer_node is not None: + W_list = template_buffer_node.inputs[ + wgt_start_idx : wgt_start_idx + self.gemm_grouped_num + ] + assert isinstance(template_buffer_node.outputs, list) + Y_list = template_buffer_node.outputs + counters["inductor"]["cpp_grouped_gemm_template"] += 1 + multi_output_buffers = template_buffer_node.outputs + + template_buffer = Y_list[0] + fake_buffers: list[ir.Buffer] = [] + Y_2d_list = Y_list + output_dtype, compute_dtype = get_gemm_template_output_and_compute_dtype( + X_list[0].get_dtype() + ) + micro_gemm = create_micro_gemm( + f"{kernel.kernel_name}_micro_gemm", + self.m, + self.n, + self.k, + input_dtype=X_list[0].get_dtype(), + # pyrefly: ignore [missing-attribute] + input2_dtype=W_list[0].get_dtype(), + output_dtype=output_dtype, + compute_dtype=compute_dtype, + alpha=self.alpha, + num_threads=self.num_threads, + ) + assert micro_gemm is not None + assert self.register_blocking == micro_gemm.register_blocking + self.log_blockings() + if isinstance(micro_gemm, CppMicroGemmAMX): + counters["inductor"]["cpp_micro_gemm_amx_counter"] += 1 + + L1_cache_size = torch._C._cpu._L1d_cache_size() # per core cache size in Bytes + assert L1_cache_size > 0, f"Expect L1_cache_size > 0 but got {L1_cache_size}" + + L2_cache_size = torch._C._cpu._L2_cache_size() # per core cache size in Bytes + assert L2_cache_size > 0, f"Expect L2_cache_size > 0 but got {L2_cache_size}" + + epilogues: list[ir.IRNode] = [] + reindexers: list[Optional[Callable[[list[Any]], list[Any]]]] = [] + gemm_output_buffers: list[ir.Buffer] = [] + for out_buf_idx in range(self.gemm_grouped_num): + gemm_output_name = f"{template_buffer.get_name()}_GemmOut" + str( + out_buf_idx + ) + gemm_output_buffers.append( + ir.Buffer(name=gemm_output_name, layout=template_buffer.layout) + ) + + assert not self.epilogue_creator, ( + "epilogue_creator is not supported yet in Grouped GEMM Template" + ) + + kernel_args: dict[str, Optional[ir.IRNode]] = {} + for x_idx in range(wgt_start_idx): + kernel_args["X" + str(x_idx)] = act_deduplicated[x_idx] + for w_idx in range(self.gemm_grouped_num): + # pyrefly: ignore [unsupported-operation] + kernel_args["W" + str(w_idx)] = W_list[w_idx] + for inp_idx in range(self.gemm_grouped_num): + kernel_args["inp" + str(inp_idx)] = inp_list[inp_idx] + + def _bias_add_epilogue(buf: ir.IRNode, inp: ir.IRNode) -> ir.Pointwise: + return create_epilogue_with_attr( + buf, "bias_add", other=inp, beta=self.beta, dtype=self.layout.dtype + ) + + for gemm_idx, inp in enumerate(inp_list): + if inp: + buffer_name = Y_list[gemm_idx].get_name() + epilogues.append( + ir.ComputedBuffer( + name=buffer_name, + layout=template_buffer.layout, + data=_bias_add_epilogue(gemm_output_buffers[gemm_idx], inp), + ) + ) + reindexers.append(None) + + if epilogue_nodes: + epilogues.extend(epilogue_nodes) + for epilogue_node in epilogue_nodes: + Y = cast(ir.Buffer, epilogue_node) + _, reindexers = gen_2d_view_of_epilogue_buf( + Y, + template_buffer, + [ + epilogue_node, + ], + reindexers, + default_reindexers=[ + None, + ], + ) + + options = dict( + N=self.n, + K=self.k, + PADDED_N=self.padded_n, + aliases={}, + beta=self.beta, + alpha=self.alpha, + num_threads=self.num_threads, + micro_gemm=micro_gemm, + is_dynamic_M=self.is_dynamic_M, + template=self, + kernel=kernel, + export_declaration=get_export_declaration(), + acc_buf_dtype=torch.float, + DTYPE_TO_CPP=DTYPE_TO_CPP, + L1_cache_size=L1_cache_size, + L2_cache_size=L2_cache_size, + config=config, + epilogue_nodes=epilogues, + GemmOuts=gemm_output_buffers, + reindexers=reindexers, + kernel_args=kernel_args, + X_list=X_list, + W_list=W_list, + gemm_grouped_num=self.gemm_grouped_num, + Y_list={"Y" + str(idx): Y for idx, Y in enumerate(Y_list)}, + Y_2d_list=Y_2d_list, + multi_output_buffers=multi_output_buffers, + ) + with contextlib.ExitStack() as stack: + stack.enter_context( + patch.object(V.graph, "get_dtype", self._fake_get_dtype(fake_buffers)) + ) + return self._template_from_string(GEMM_TEMPLATE).render(**options) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_micro_gemm.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_micro_gemm.py new file mode 100644 index 0000000000000000000000000000000000000000..39c026949fb13d541191b7462ad8f5666f09c098 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_micro_gemm.py @@ -0,0 +1,2232 @@ +# mypy: allow-untyped-defs +import dataclasses +import operator +import sys +from collections.abc import Callable +from enum import Enum +from typing import Optional + +import torch + +from .. import cpp_builder, ir +from ..cpu_vec_isa import ( + pick_vec_isa, + VecAMX, + VecAVX2, + VecAVX512, + VecAVX512VNNI, + VecISA, + VecNEON, + VecSVE256, +) +from ..utils import IndentedBuffer, parallel_num_threads +from ..virtualized import V +from .common import KernelTemplate +from .cpp_template_kernel import CppTemplateKernel +from .cpp_utils import DTYPE_TO_CPP, GemmBlocking, value_to_cpp + + +class LayoutType(Enum): + NORMAL = 0 + VNNI2 = 1 + VNNI4 = 2 + + +_IS_WINDOWS = sys.platform == "win32" + + +def get_restrict_keyword() -> str: + if _IS_WINDOWS: + # https://learn.microsoft.com/en-us/cpp/cpp/extension-restrict?view=msvc-170 + return "__restrict" + else: + return "__restrict__" + + +class CppMicroGemm: + """ + A class that codegens a kernel that computes small-sized matrix multiplication. + + A micro GEMM kernel is responsible for register blocking, instruction selection, + and other CPU architecture-specific optimizations. + + The subclasses need to override `codegen_define` to define the kernel function + that is called by the code generated by `codegen_call`. + """ + + # TODO(jgong5): support constant shapes and lds as template args. + DECLARE_KERNEL = r""" +template +inline void {{kernel_name}}( +{%- if kernel_extra_args_declare %} + {{kernel_extra_args_declare}} +{%- endif %} + const {{input_t}}* {{restrict_keyword}} A, + const {{input2_t}}* {{restrict_keyword}} B, + {{output_t}}* {{restrict_keyword}} C, + int64_t M, + int64_t N, + int64_t K, + int64_t lda, + int64_t ldb, + int64_t ldc +) +""" + + def __init__( + self, + name, + input_dtype, + input2_dtype, + output_dtype, + compute_dtype, + register_blocking, + alpha=1, + ) -> None: + self.name = name + self.input_dtype = input_dtype + assert input2_dtype is not None + self.input2_dtype = input2_dtype + self.output_dtype = output_dtype + self.compute_dtype = compute_dtype + self.register_blocking = register_blocking + self.alpha = alpha + self.pack_vnni_B_locally = False + + def get_common_options(self): + if self.input_dtype in [torch.uint8, torch.int8]: + assert self.compute_dtype == torch.int32 + assert self.output_dtype == torch.int32 + assert self.input2_dtype == torch.int8 + return { + "torch": torch, + "kernel_name": self.name, + "input_dtype": self.input_dtype, + "input2_dtype": self.input2_dtype, + "output_dtype": self.output_dtype, + "compute_dtype": self.compute_dtype, + "input_t": DTYPE_TO_CPP[self.input_dtype], + "input2_t": DTYPE_TO_CPP[self.input2_dtype], + "output_t": DTYPE_TO_CPP[self.output_dtype], + "compute_t": DTYPE_TO_CPP[self.compute_dtype], + "alpha": self.alpha, + "kernel_extra_args_declare": self.get_kernel_extra_args_declare(), + "int8_gemm": self.input_dtype in [torch.uint8, torch.int8], + "vnni_size": 4 if self.input_dtype in [torch.uint8, torch.int8] else 2, + "restrict_keyword": get_restrict_keyword(), + "pack_vnni_B_locally": self.pack_vnni_B_locally, + "template": self, + "is_woq_int4": self.is_woq_int4(), + } + + def get_kernel_declaration(self): + options = self.get_common_options() + return KernelTemplate._template_from_string(self.DECLARE_KERNEL).render(options) + + def get_kernel_extra_args_declare(self) -> str: + return "" + + def get_kernel_extra_args(self, **kwargs) -> list[str]: + return [] + + def codegen_define(self, kernel: CppTemplateKernel) -> str: + raise NotImplementedError + + def codegen_call( + self, + kernel: CppTemplateKernel, + A: ir.Buffer, + B: ir.Buffer, + C: ir.Buffer, + accum: bool, + prefetch: bool = False, + **kwargs_for_extra_args, + ) -> str: + """ + Generate the code for calling the templated kernel that computes + `C += alpha * A @ B` if `accum` is True, or `C = alpha * A @ B` otherwise. + """ + A_ptr = f"&({kernel.index(A, [0, 0])})" + B_ptr = f"&({kernel.index(B, [0, 0])})" + C_ptr = f"&({kernel.index(C, [0, 0])})" + M = kernel.size(C, 0) + N = kernel.size(C, 1) + K = kernel.size(A, 1) + lda = kernel.stride(A, 0) + ldb = kernel.stride(B, 0) + ldc = kernel.stride(C, 0) + res = IndentedBuffer() + res.writeline( + f"{self.name}<{value_to_cpp(accum, 'bool')}, {value_to_cpp(prefetch, 'bool')}>(" + ) + with res.indent(): + kwargs_for_extra_args.update({"kernel": kernel}) + extra_args = self.get_kernel_extra_args(**kwargs_for_extra_args) + for arg in extra_args: + res.writeline(arg) + res.writeline(f"{A_ptr},") + res.writeline(f"{B_ptr},") + res.writeline(f"{C_ptr},") + res.writeline(f"{M},") + res.writeline(f"{N},") + res.writeline(f"{K},") + res.writeline(f"{lda},") + res.writeline(f"{ldb},") + res.writeline(f"{ldc}") + res.writeline(");") + return res.getvalue() + + def use_local_vnni_blocking(self, should_block_weight: bool): + self.pack_vnni_B_locally = should_block_weight + + def codegen_init( + self, + kernel: CppTemplateKernel, + ) -> str: + return "" + + def codegen_finalize( + self, + kernel: CppTemplateKernel, + ) -> str: + return "" + + def get_b_layout(self) -> LayoutType: + return LayoutType.NORMAL + + ALLOCATE_WEIGHT_BUFFER = r""" + {%- if is_msvc_compiler %} + // MSVC doesn't support stack-allocated dynamic-sized arrays, so using heap memory here. + auto heap_deq_b_buf_ptr = std::make_unique<{{buffer_dtype}}[]>({{buffer_size}}); + {{buffer_dtype}}* {{buffer_name}} = heap_deq_b_buf_ptr.get(); + {%- else %} + // It's safe to use a stack-allocated array since the blocking strategy would + // require us to allocate an array that's smaller than the size of L1D cache, + // and the default per thread max stack size on Linux is quite higher, + // so we need not worry about stack overflow. + alignas(4096) {{buffer_dtype}} {{buffer_name}}[{{buffer_size}}]; + {%- endif %} +""" + + def codegen_allocate_weight_buffer( + self, buffer_name: str, buffer_dtype: str, *size_args + ) -> str: + buffer_size = " * ".join(map(str, size_args)) + return KernelTemplate._template_from_string(self.ALLOCATE_WEIGHT_BUFFER).render( + { + "buffer_name": buffer_name, + "buffer_dtype": buffer_dtype, + "buffer_size": buffer_size, + "is_msvc_compiler": cpp_builder.is_msvc_cl(), + } + ) + + def is_woq_int4(self): + return False + + +@dataclasses.dataclass +class CppMicroGemmConfig: + input_dtype: torch.dtype + input2_dtype: torch.dtype + output_dtype: torch.dtype + compute_dtype: torch.dtype + vec_isa_cls: type[VecISA] + register_blocking: GemmBlocking + extra_check: Optional[Callable[..., bool]] = None + + +micro_gemm_configs: dict[type[CppMicroGemm], list[CppMicroGemmConfig]] = {} + + +def register_micro_gemm(*configs): + def inner(cls): + assert cls not in micro_gemm_configs, ( + f"Duplicate micro_gemm registration for {cls}" + ) + assert len(configs) > 0, f"No micro_gemm configs provided for {cls}" + micro_gemm_configs[cls] = list(configs) + return cls + + return inner + + +def generate_gemm_config( + vec_isa_cls, + register_blockings, + input_dtype=torch.float, + input2_dtype=None, + output_dtype=None, + compute_dtype=None, + extra_check=None, +): + if output_dtype is None: + output_dtype = input_dtype + if compute_dtype is None: + compute_dtype = output_dtype + if input2_dtype is None: + input2_dtype = input_dtype + return [ + CppMicroGemmConfig( + input_dtype, + input2_dtype, + output_dtype, + compute_dtype, + vec_isa_cls, + GemmBlocking(*blocking), + extra_check, + ) + for blocking in register_blockings + ] + + +class CppMicroGemmRef(CppMicroGemm): + """ + A reference implementation of the CppMicroGemm class with naive C++ code. + It is used for correctness debugging. + """ + + TEMPLATE_ENTRY = r""" +{{declare_kernel}} { + for (int64_t m = 0; m < M; ++m) { + for (int64_t n = 0; n < N; ++n) { + {{compute_t}} result = accum ? C[m * ldc + n] : 0; + for (int64_t k = 0; k < K; ++k) { + result += ({{compute_t}})A[m * lda + k] * ({{compute_t}})B[k * ldb + n] * {{alpha}}; + } + C[m * ldc + n] = result; + } + } +} +""" + + def __init__( + self, name, input_dtype, input2_dtype, output_dtype, compute_dtype, alpha + ) -> None: + super().__init__( + name, + input_dtype, + input2_dtype, + output_dtype, + compute_dtype, + GemmBlocking(1, 1, 1), + alpha, + ) + + def codegen_define(self, kernel: CppTemplateKernel) -> str: + options = { + "declare_kernel": self.get_kernel_declaration(), + **self.get_common_options(), + } + return KernelTemplate._template_from_string(self.TEMPLATE_ENTRY).render(options) + + +def is_int8_woq_gemm_small_m_dim_corner_case(config, m, n, k): + return ( + k % config.register_blocking.block_k == 0 + and n % config.register_blocking.block_n == 0 + and m < 16 + ) + + +# extra check for small M dimension for int8 WoQ case +def check_int8_woq_small_m_dim(config, m, n, k, alpha, num_threads, **kwargs): + return is_int8_woq_gemm_small_m_dim_corner_case(config, m, n, k) and not kwargs.get( + "dynamic_M", False + ) + + +# For int8 WoQ GEMM with small M, we use different blockings that shouldn't be used otherwise +def do_not_use_with_small_m_for_int8_woq(config, m, n, k, alpha, num_threads, **kwargs): + return not check_int8_woq_small_m_dim(config, m, n, k, alpha, num_threads, **kwargs) + + +@register_micro_gemm( + *generate_gemm_config( + VecAVX512, + [(8, 48, 1), (8, 32, 1), (16, 16, 1)], + input_dtype=torch.float, + ), + *generate_gemm_config( + VecAVX512, + [(8, 48, 1), (8, 32, 1), (16, 16, 1)], + input_dtype=torch.bfloat16, + output_dtype=torch.float, + ), + *generate_gemm_config( + VecAVX512, + [(8, 48, 1), (8, 32, 1), (16, 16, 1)], + input_dtype=torch.half, + output_dtype=torch.float, + ), + *generate_gemm_config( + VecAVX512, + [(8, 48, 1), (8, 32, 1), (16, 16, 1)], + input_dtype=torch.bfloat16, + input2_dtype=torch.int8, + output_dtype=torch.float, + compute_dtype=torch.float, + extra_check=do_not_use_with_small_m_for_int8_woq, + ), + *generate_gemm_config( + VecAVX512, + [ + (4, 32, 64), + (8, 32, 64), + ], + input_dtype=torch.bfloat16, + input2_dtype=torch.int8, + output_dtype=torch.float, + compute_dtype=torch.float, + extra_check=check_int8_woq_small_m_dim, + ), + *generate_gemm_config( + VecAVX2, + [(4, 24, 1), (4, 16, 1), (8, 8, 1)], + input_dtype=torch.float, + ), + *generate_gemm_config( + VecAVX2, + [(4, 24, 1), (4, 16, 1), (8, 8, 1)], + input_dtype=torch.bfloat16, + output_dtype=torch.float, + ), + *generate_gemm_config( + VecAVX2, + [(4, 24, 1), (4, 16, 1), (8, 8, 1)], + input_dtype=torch.half, + output_dtype=torch.float, + ), + *generate_gemm_config( + VecAVX2, + [(4, 24, 1), (4, 16, 1), (8, 8, 1)], + input_dtype=torch.bfloat16, + input2_dtype=torch.int8, + output_dtype=torch.float, + compute_dtype=torch.float, + extra_check=do_not_use_with_small_m_for_int8_woq, + ), + *generate_gemm_config( + VecAVX2, + [ + (2, 16, 64), + (4, 16, 64), + ], + input_dtype=torch.bfloat16, + input2_dtype=torch.int8, + output_dtype=torch.float, + compute_dtype=torch.float, + extra_check=check_int8_woq_small_m_dim, + ), + *generate_gemm_config( + VecNEON, + [(4, 24, 1), (4, 16, 1), (8, 8, 1)], + input_dtype=torch.float, + input2_dtype=torch.float, + output_dtype=torch.float, + compute_dtype=torch.float, + ), + *generate_gemm_config( + VecSVE256, + [(4, 24, 1), (4, 16, 1), (8, 8, 1)], + input_dtype=torch.float, + input2_dtype=torch.float, + output_dtype=torch.float, + compute_dtype=torch.float, + ), +) +class CppMicroGemmFP32Vec(CppMicroGemm): + """ + This class generates the code for micro gemm using fp32 vec instructions for compute. + It supports input types of torch.float, torch.bfloat16, and torch.half with fp32 output. + The output of the microkernel is in FP32, but it would be converted to BF16/FP16 in the template, + if the desired output is BF16/FP16. + """ + + TEMPLATE_ENTRY = r""" +{{declare_kernel}} { + using Vectorized = at::vec::Vectorized<{{compute_t}}>; + constexpr auto VLEN = Vectorized::size(); + {{kernel.assert_function}}({{block_n}} % VLEN == 0, "block_n dimension must be multiple of Vector size"); + {{kernel.assert_function}}(K % {{block_k}} == 0, "K dimension must be multiple of {{block_k}}"); + // TODO(jgong5): loop unroll for M and N + for (int64_t m = 0; m < M; m += {{block_m}}) { + int64_t block_m = std::min(M - m, {{block_m}}); + for (int64_t n = 0; n < N; n += {{block_n}}) { + int64_t block_n = std::min(N - n, {{block_n}}); + if (block_m == {{block_m}} && block_n == {{block_n}}) { +{%- if not trans_b %} + {{kernel_name}}_kernel<{{block_m}}, {{block_n}}, accum, prefetch>( +{%- else %} + {{kernel_name}}_transpose_b_kernel<{{block_m}}, {{block_n}}, accum, prefetch>( +{%- endif %} + A + m * lda, +{%- if not trans_b %} + B + n, +{%- else %} + B + n * ldb, +{%- endif %} + C + m * ldc + n, + K, + lda, + ldb, + ldc + ); +{%- if tail_n %} + } else if (block_n == {{block_n}}){ +{%- else %} + } else { +{%- endif %} + switch (block_m) { +{%- for b in range(block_m - 1, 0, -1) %} + case {{b}}: + {%- if not trans_b %} + {{kernel_name}}_kernel<{{b}}, {{block_n}}, accum, prefetch>( + {%- else %} + {{kernel_name}}_transpose_b_kernel<{{b}}, {{block_n}}, accum, prefetch>( + {%- endif %} + A + m * lda, + {%- if not trans_b %} + B + n, + {%- else %} + B + n * ldb, + {%- endif %} + C + m * ldc + n, + K, + lda, + ldb, + ldc + ); + break; +{%- endfor %} + default: + {{kernel.assert_function}}(false, "Unsupported block_m: {{block_m}}"); + } + +{%- if tail_n %} + } else { + switch (block_m) { + {%- for b in range(block_m, 0, -1) %} + case {{b}}: + {%- if not trans_b %} + {{kernel_name}}_ntail_kernel<{{b}}, {{block_n}}, accum, prefetch>( + {%- else %} + {{kernel_name}}_ntail_transpose_b_kernel<{{b}}, {{block_n}}, accum, prefetch>( + {%- endif %} + A + m * lda, + {%- if not trans_b %} + B + n, + {%- else %} + B + n * ldb, + {%- endif %} + C + m * ldc + n, + block_n, + K, + lda, + ldb, + ldc + ); + break; + {%- endfor %} + default: + {{kernel.assert_function}}(false, "Unsupported block_m: {{block_m}}"); + } + } +{%- else %} + } +{%- endif %} + } + } +} +""" + + TEMPLATE_KERNEL = r""" + +template +{%- if not trans_b %} + {%- if tail_n %} +inline void {{kernel_name}}_ntail_kernel( + {%- else %} +inline void {{kernel_name}}_kernel( + {%- endif %} +{%- else %} + {%- if tail_n %} +inline void {{kernel_name}}_ntail_transpose_b_kernel( + {%- else %} +inline void {{kernel_name}}_transpose_b_kernel( + {%- endif %} +{%- endif %} + const {{input_t}}* {{restrict_keyword}} A, + const {{input2_t}}* {{restrict_keyword}} B, + {{output_t}}* {{restrict_keyword}} C, +{%- if tail_n %} + int64_t N, +{%- endif %} + int64_t K, + int64_t lda, + int64_t ldb, + int64_t ldc +) { + using Vectorized = at::vec::Vectorized<{{compute_t}}>; +{%- if input2_dtype in [torch.bfloat16, torch.float16] %} + using VectorizedIn = at::vec::Vectorized<{{input_t}}>; +{%- endif %} + +{%- if not trans_b %} + constexpr auto VLEN = Vectorized::size(); + constexpr auto ROWS = BLOCK_M; + constexpr auto COLS = BLOCK_N / VLEN; + + Vectorized va; + at::vec::VectorizedN<{{compute_t}}, COLS> vb; + at::vec::VectorizedN<{{compute_t}}, ROWS*COLS> vc; + + {%- if tail_n %} + int64_t rCOLS = (N + VLEN - 1) / VLEN; + int ntail = N % VLEN; + {%- endif %} + auto loadc = [&](auto i) { + if constexpr (accum) { + constexpr int row = i / COLS; + constexpr int col = i % COLS; + {%- if tail_n %} + int load_size = (col == rCOLS - 1 && ntail != 0) ? ntail : VLEN; + if (col < rCOLS) { + vc[i] = Vectorized::loadu(C + row * ldc + col * VLEN, load_size); + } + {%- else %} + vc[i] = Vectorized::loadu(C + row * ldc + col * VLEN); + {%- endif %} + } else { + vc[i] = Vectorized(0.0f); + } + }; + c10::ForcedUnroll{}(loadc); + + auto compute = [&, COLS](auto i, int k) { + constexpr int row = i / COLS; + constexpr int col = i % COLS; + {%- if tail_n %} + int load_size = (col == rCOLS - 1 && ntail != 0) ? ntail : VLEN; + {%- endif %} + if constexpr (col == 0) { + {%- if alpha != 1 %} + va = Vectorized(static_cast<{{compute_t}}>(A[row * lda + k]) * {{alpha}}); + {%- else %} + va = Vectorized(static_cast<{{compute_t}}>(A[row * lda + k])); + {%- endif %} + } + + if constexpr (row == 0) { + {%- if tail_n %} + if (col < rCOLS) { + {%- if input2_dtype in [torch.bfloat16, torch.float16] %} + auto b = VectorizedIn::loadu(B + k * ldb + col * VLEN, load_size); + vb[col] = at::vec::convert<{{compute_t}}>(b); + {%- elif input2_dtype == torch.int8 %} + // Convert VLEN int8 elements to int32, and then fp32 + auto b32 = at::vec::convert_to_int32(B + k * ldb + col * VLEN, load_size); + vb[col] = at::vec::convert(b32); + {%- else %} + vb[col] = Vectorized::loadu(B + k * ldb + col * VLEN, load_size); + {%- endif %} + } else { + vb[col] = Vectorized(0.0f); + } + + {%- else %} + + {%- if input2_dtype in [torch.bfloat16, torch.float16] %} + auto b = VectorizedIn::loadu(B + k * ldb + col * VLEN, VLEN); + vb[col] = at::vec::convert<{{compute_t}}>(b); + {%- elif input2_dtype == torch.int8 %} + // Convert VLEN int8 elements to int32, and then fp32 + auto b32 = at::vec::convert_to_int32(B + k * ldb + col * VLEN); + if constexpr (prefetch) { + _mm_prefetch(B + (k + {{block_k}}) * ldb + col * VLEN, _MM_HINT_T0); + } + vb[col] = at::vec::convert(b32); + {%- else %} + vb[col] = Vectorized::loadu(B + k * ldb + col * VLEN); + {%- endif %} + {%- endif %} + + } + + constexpr int idx = row * COLS + col; + {%- if tail_n %} + if (col < rCOLS) { + vc[idx] = at::vec::fmadd(va, vb[col], vc[idx]); + } + {%- else %} + vc[idx] = at::vec::fmadd(va, vb[col], vc[idx]); + {%- endif %} + }; + + for (int k = 0; k < K; ++k) { + c10::ForcedUnroll{}(compute, k); + } + + // store to C + auto storec = [&](auto i) { + constexpr int row = i / COLS; + constexpr int col = i % COLS; + {%- if tail_n %} + int store_size = (col == rCOLS - 1 && ntail != 0) ? ntail : VLEN; + if (col < rCOLS) { + vc[i].store(C + row * ldc + col * VLEN, store_size); + } + {%- else %} + vc[i].store(C + row * ldc + col * VLEN); + {%- endif %} + }; + c10::ForcedUnroll{}(storec); + +{%- else %} + // Use 2 implementations for the transposed B: + // First implementation: + // Transpose first and then perform outer product calculation in sub-blocks, + // which introduces an additional transpose overhead of [K, N] compared to the non-transpose version. + // Second implementation: + // Directly perform inner product calculation in sub-blocks, + // which introduces an additional vector reduction of [M, N] compared to the non-tranpose version. + // Therefore, when M * N / (K * N) is large, the first implementation has better performance. + {%- if tail_n %} + if (K % Vectorized::size() == 0 && N % Vectorized::size() == 0 && 24 * BLOCK_M > K) { + {%- else %} + if (K % Vectorized::size() == 0 && 24 * BLOCK_M > K) { + {%- endif %} + // First implementation: + constexpr auto VLEN = Vectorized::size(); + constexpr auto ROWS = BLOCK_M; + constexpr auto COLS = BLOCK_N / VLEN; + int _K = K / VLEN; + Vectorized va; + at::vec::VectorizedN<{{compute_t}}, VLEN> vb; + at::vec::VectorizedN<{{compute_t}}, ROWS*COLS> vc; + auto loadc = [&](auto i) { + if constexpr (accum) { + constexpr int row = i / COLS; + constexpr int col = i % COLS; + vc[i] = Vectorized::loadu(C + row * ldc + col * VLEN); + } else { + vc[i] = Vectorized(0.0f); + } + }; + c10::ForcedUnroll{}(loadc); + auto unroll_loadB = [&](auto i, const {{input2_t}}* {{restrict_keyword}} src_ptr) { + {%- if input2_dtype in [torch.bfloat16, torch.float16] %} + auto b = VectorizedIn::loadu(src_ptr + i * ldb, VLEN); + vb[i] = at::vec::convert<{{compute_t}}>(b); + {%- elif input2_dtype == torch.int8 %} + auto b32 = at::vec::convert_to_int32(src_ptr + i * ldb, VLEN); + vb[i] = at::vec::convert(b32); + {%- else %} + vb[i] = Vectorized::loadu(src_ptr + i * ldb, VLEN); + {%- endif %} + }; + auto compute_trans = [&, COLS](auto i, int k) { + constexpr int row = i % ROWS; + constexpr int col = i / ROWS; + constexpr int e_col = col * VLEN; + int idk = k * VLEN; + if constexpr (row == 0) { + c10::ForcedUnroll{}(unroll_loadB, B + e_col * ldb + idk); + at::vec::transpose_block(vb); + } + constexpr int idx = row * COLS + col; + {{kernel.unroll_pragma(16)}} + for (int j = 0; j < VLEN; j++) { + {%- if alpha != 1 %} + va = Vectorized(static_cast<{{compute_t}}>(A[row * lda + idk + j]) * {{alpha}}); + {%- else %} + va = Vectorized(static_cast<{{compute_t}}>(A[row * lda + idk + j])); + {%- endif %} + vc[idx] = at::vec::fmadd(va, vb[j], vc[idx]); + } + }; + for (int k = 0; k < _K; ++k) { + c10::ForcedUnroll{}(compute_trans, k); + } + // store to C + auto storec = [&](auto i) { + constexpr int row = i / COLS; + constexpr int col = i % COLS; + vc[i].store(C + row * ldc + col * VLEN); + }; + c10::ForcedUnroll{}(storec); + } else { + // Second implementation + {%- if input2_dtype in [torch.bfloat16, torch.float16] %} + constexpr auto VLEN = VectorizedIn::size(); + {%- else %} + constexpr auto VLEN = Vectorized::size(); + {%- endif %} + int _K = (K + VLEN - 1) / VLEN; + // sub-block size of BLOCK_N and BLOCK_M + constexpr int sM = {{sub_block_m}}; + constexpr int sN = {{sub_block_n}}; + {%- if tail_n %} + int bN = (N + sN - 1) / sN; + {%- else %} + constexpr int bN = (BLOCK_N + sN - 1) / sN; + {%- endif %} + constexpr int bM = (BLOCK_M + sM - 1) / sM; + + {%- if input2_dtype in [torch.bfloat16, torch.float16] %} + at::vec::VectorizedN<{{compute_t}}, 2> va; + at::vec::VectorizedN<{{compute_t}}, 2 * sN> vb; + {%- else %} + at::vec::Vectorized<{{compute_t}}> va; + at::vec::VectorizedN<{{compute_t}}, sN> vb; + {%- endif %} + at::vec::VectorizedN<{{compute_t}}, sN * sM> vmid; + + {%- if tail_n %} + int ntail = N % sN; + {%- else %} + constexpr int ntail = BLOCK_N % sN; + {%- endif %} + constexpr int mtail = BLOCK_M % sM; + int ktail = K % VLEN; + + auto compute_trans = [&](int m, int n, int k) { + {%- if tail_n %} + int e_n = (n == bN - 1 && ntail != 0) ? (N - n * sN) : sN; + {%- else %} + int e_n = (n == bN - 1 && ntail != 0) ? (BLOCK_N - n * sN) : sN; + {%- endif %} + int e_m = (m == bM - 1 && mtail != 0) ? (BLOCK_M - m * sM) : sM; + int e_k = (k == _K - 1 && ktail != 0) ? (K - k * VLEN) : VLEN; + {{kernel.unroll_pragma(sub_block_n)}} + for (int i = 0; i < e_n; i++) { + {%- if input2_dtype in [torch.bfloat16, torch.float16] %} + auto b = VectorizedIn::loadu(B + (sN * n + i) * ldb + k * VLEN, e_k); + std::tie(vb[2 * i], vb[2 * i + 1]) = at::vec::convert_to_float<{{input_t}}>(b); + {%- elif input2_dtype == torch.int8 %} + auto b32 = at::vec::convert_to_int32(B + (sN * n + i) * ldb + k * VLEN, e_k); + vb[i] = at::vec::convert(b32); + {%- else %} + vb[i] = Vectorized::loadu(B + (sN * n + i) * ldb + k * VLEN, e_k); + {%- endif %} + } + + {{kernel.unroll_pragma(sub_block_m)}} + for (int s = 0; s < e_m; s++) { + {%- if input2_dtype in [torch.bfloat16, torch.float16] %} + auto a = VectorizedIn::loadu(A + (sM * m + s) * lda + k * VLEN, e_k); + std::tie(va[0], va[1]) = at::vec::convert_to_float<{{input_t}}>(a); + {%- elif input2_dtype == torch.int8 %} + auto a32 = at::vec::convert_to_int32(A + (sM * m + s) * lda + k * VLEN, e_k); + va = at::vec::convert(a32); + {%- else %} + va = Vectorized::loadu(A + (sM * m + s) * lda + k * VLEN, e_k); + {%- endif %} + + {%- if alpha != 1 %} + va = va * Vectorized({{alpha}}); + {%- endif %} + if (k == 0) { + {{kernel.unroll_pragma(sub_block_n)}} + for (int i = 0; i < e_n; i++) { + {%- if input2_dtype in [torch.bfloat16, torch.float16] %} + vmid[sN * s + i] = at::vec::fmadd(va[0], vb[2 * i], Vectorized(0.0f)); + vmid[sN * s + i] = at::vec::fmadd(va[1], vb[2 * i + 1], vmid[sN * s + i]); + {%- else %} + vmid[sN * s + i] = at::vec::fmadd(va, vb[i], Vectorized(0.0f)); + {%- endif %} + } + } else { + {{kernel.unroll_pragma(sub_block_n)}} + for (int i = 0; i < e_n; i++) { + {%- if input2_dtype in [torch.bfloat16, torch.float16] %} + vmid[sN * s + i] = at::vec::fmadd(va[0], vb[2 * i], vmid[sN * s + i]); + vmid[sN * s + i] = at::vec::fmadd(va[1], vb[2 * i + 1], vmid[sN * s + i]); + {%- else %} + vmid[sN * s + i] = at::vec::fmadd(va, vb[i], vmid[sN * s + i]); + {%- endif %} + } + } + } + + // store to C + if (k == _K - 1) { + {{kernel.unroll_pragma(sub_block_m)}} + for (int s = 0; s < e_m; s++) { + {{kernel.unroll_pragma(sub_block_n)}} + for (int i = 0; i < e_n; i++) { + auto v = at::vec::vec_reduce_all([](Vectorized& x, Vectorized& y) { return x + y; }, vmid[sN * s + i]); + if constexpr (accum) { + auto c = *(C + (sM * m + s) * ldc + sN * n + i); + *(C + (sM * m + s) * ldc + sN * n + i) = c + v; + } else { + *(C + (sM * m + s) * ldc + sN * n + i) = v; + } + } + } + } + }; + + for (int n = 0; n < bN; ++n) { + for (int m = 0; m < bM; ++m) { + for (int k = 0; k < _K; ++k) { + compute_trans(m, n, k); + } + } + } + } +{%- endif %} +} +""" + + # set trans_b to generate gemm that supports transposed B matrix + # set tail_n to support the tail of N + # TODO add trans_b support for other micro gemms + # and move setting of trans_b to the init of CppMicroGemm + def __init__( + self, + name, + input_dtype, + input2_dtype, + output_dtype, + compute_dtype, + register_blocking, + alpha=1, + tail_n=False, + trans_b=False, + ) -> None: + super().__init__( + name, + input_dtype, + input2_dtype, + output_dtype, + compute_dtype, + register_blocking, + alpha, + ) + self.tail_n = tail_n + # trans_b is only supported on platforms that + # support avx512 or avx2 since transpose_block is + # only implemented on these platforms + if trans_b: + vec_isa = pick_vec_isa() + assert issubclass(vec_isa.__class__, VecAVX512) or issubclass( + vec_isa.__class__, VecAVX2 + ) + self.trans_b = trans_b + + def codegen_define(self, kernel: CppTemplateKernel) -> str: + options = { + "declare_kernel": self.get_kernel_declaration(), + "kernel": kernel, + "block_m": self.register_blocking.block_m, + "block_n": self.register_blocking.block_n, + "block_k": self.register_blocking.block_k, + "trans_b": False, + "tail_n": False, + "restrict_keyword": get_restrict_keyword(), + **self.get_common_options(), + } + if self.trans_b: + # TODO supports tuning of sub_block_m/sub_block_n + # to get better performance for specific shapes + sub_block_m = min(1, self.register_blocking.block_m) + sub_block_n = min(4, self.register_blocking.block_n) + # update options to generate kernel with trans_b and sub-block size + options.update( + { + "trans_b": self.trans_b, + "sub_block_m": sub_block_m, + "sub_block_n": sub_block_n, + } + ) + result = KernelTemplate._template_from_string(self.TEMPLATE_KERNEL).render( + options + ) + # update options to generate the kernel for the tail of N + if self.tail_n: + options.update( + { + "tail_n": self.tail_n, + } + ) + result += KernelTemplate._template_from_string(self.TEMPLATE_KERNEL).render( + options + ) + result += KernelTemplate._template_from_string(self.TEMPLATE_ENTRY).render( + options + ) + return result + + +def check_vnni_extra(config, m, n, k, alpha, num_threads, **kwargs): + assert config.input_dtype == torch.uint8 and config.input2_dtype == torch.int8 + vnni_size = 4 + return k % vnni_size == 0 + + +@register_micro_gemm( + *generate_gemm_config( + VecAVX512VNNI, + # (block_m, block_n, block_k) + [(6, 64, 4)], + input_dtype=torch.uint8, + input2_dtype=torch.int8, + output_dtype=torch.int32, + compute_dtype=torch.int32, + extra_check=check_vnni_extra, + ), +) +class CppMicroGemmAVX512VNNI(CppMicroGemm): + """ + This class generates the code for micro gemm using AVX512 VNNI instructions for compute. + It supports u8s8s32 GEMM only. + AVX512_VNNI ISA has been available since the 3rd gen of Intel Xeon. + """ + + TEMPLATE_ENTRY = r""" +{{declare_kernel}} { + {{kernel.assert_function}}(N % {{block_n}} == 0, "N dimension must be multiple of {{block_n}}"); + {{kernel.assert_function}}(K % {{vnni_size}} == 0, "K dimension must be multiple of {{vnni_size}}"); + constexpr int64_t M_BLOCK = {{block_m}}; + const int64_t M_TAIL = M % M_BLOCK; + const int64_t M_MAIN = M - M_TAIL; + for (int64_t m = 0; m < M_MAIN; m += M_BLOCK) { + for (int64_t n = 0; n < N; n += {{block_n}}) { + {{kernel_name}}_kernel( + A + m * lda, + B + n, + C + m * ldc + n, + K, + lda, + ldb, + ldc + ); + } + } + if (M_TAIL > 0) { + switch (M_TAIL) { +{%- for m_tail in range(block_m - 1, 0, -1) %} + case ({{m_tail}}): + for (int64_t n = 0; n < N; n += {{block_n}}) { + {{kernel_name}}_kernel<{{m_tail}}, {{block_n}}, accum>( + A + M_MAIN * lda, + B + n, + C + M_MAIN * ldc + n, + K, + lda, + ldb, + ldc + ); + } + break; +{%- endfor %} + default: + {{kernel.assert_function}}(false, "Unsupported M_TAIL: {}", M_TAIL); + } // switch M_TAIL + } // if M_TAIL +} +""" + + TEMPLATE_KERNEL = r""" +template +inline void {{kernel_name}}_kernel( + const {{input_t}}* {{restrict_keyword}} A, + const {{input2_t}}* {{restrict_keyword}} B, + {{output_t}}* {{restrict_keyword}} C, + int64_t K, + int64_t lda, + int64_t ldb, + int64_t ldc +) { + constexpr const int COLS = N / {{vec_len}}; + __m512i va; + __m512i vb[COLS]; + __m512i vc[M * COLS]; + + c10::ForcedUnroll{}([&](auto i) { vc[i] = _mm512_setzero_epi32(); }); + + auto compute = [&](auto i, int k) { + constexpr const int row = i / COLS; + constexpr const int col = i % COLS; + + if constexpr (col == 0) { + va = _mm512_set1_epi32(*(int32_t*)(A + row * lda + k)); + } + + if constexpr (row == 0) { + // B block in VNNI layout: [K / {{vnni_size}}, N, {{vnni_size}}] + int64_t offset = k * ldb + col * {{vec_len}} * {{vnni_size}}; + vb[col] = _mm512_loadu_si512((__m512i const*)(B + offset)); + } + vc[i] = _mm512_dpbusd_epi32(vc[i], va, vb[col]); + }; + + // Accumulate along k + constexpr const int k_unroll = 2; + int k = 0; + int k_limit = K / {{vnni_size}} / k_unroll; + for (; k < k_limit; k++) { + c10::ForcedUnroll{}( + [&](auto i) { + c10::ForcedUnroll{}(compute, {{vnni_size}} * (k * k_unroll + i)); + } + ); + } + k *= {{vnni_size}} * k_unroll; + for (; k < K; k += {{vnni_size}}) { + c10::ForcedUnroll{}(compute, k); + } + + // Store to C + auto store_c = [&](auto i) { + constexpr const int row = i / COLS; + constexpr const int col = i % COLS; + if constexpr (accum) { + __m512i vc_old = _mm512_loadu_si512((__m512i const*)(C + row * ldc + col * {{vec_len}})); + vc[i] = _mm512_add_epi32(vc[i], vc_old); + } + _mm512_storeu_si512((__m512i*)(C + row * ldc + col * {{vec_len}}), vc[i]); + }; + c10::ForcedUnroll{}(store_c); +} +""" + + def __init__( + self, + name, + input_dtype, + input2_dtype, + output_dtype, + compute_dtype, + register_blocking, + alpha=1, + ) -> None: + super().__init__( + name, + input_dtype, + input2_dtype, + output_dtype, + compute_dtype, + register_blocking, + alpha, + ) + assert input_dtype == torch.uint8 and input2_dtype == torch.int8, ( + f"Only u8s8s32 GEMM is supported by AVX512VNNI microkernel, got A:{input_dtype}, B:{input2_dtype}, C:{output_dtype}." + ) + + def codegen_define(self, kernel: CppTemplateKernel) -> str: + options = { + "declare_kernel": self.get_kernel_declaration(), + "kernel": kernel, + "block_m": self.register_blocking.block_m, + "block_n": self.register_blocking.block_n, + "block_k": self.register_blocking.block_k, + "restrict_keyword": get_restrict_keyword(), + "vec_len": 16, # = 512 / 32 for C + **self.get_common_options(), + } + return KernelTemplate._template_from_string(self.TEMPLATE_KERNEL).render( + options + ) + KernelTemplate._template_from_string(self.TEMPLATE_ENTRY).render(options) + + def get_b_layout(self): + return LayoutType.VNNI4 + + +# extra check for CppMicroGemmAMX +def check_amx_extra(config, m, n, k, alpha, num_threads, **kwargs): + vnni_size = 4 if config.input_dtype in [torch.uint8, torch.int8] else 2 + return k % vnni_size == 0 and alpha == 1 + + +def check_int8_bf16_amx_extra(config, m, n, k, alpha, num_threads, **kwargs): + # We need avx512_bf16 to dequant int8 to bf16 + vec_isa = kwargs.get("vec_isa") + assert vec_isa is not None + return vec_isa.is_avx512_bf16_supported() and check_amx_extra( + config, m, n, k, alpha, num_threads, **kwargs + ) + + +# amx_fp16 need to be checked separately since it is not always supported when amx is supported +def check_amx_fp16_extra(config, m, n, k, alpha, num_threads, **kwargs): + assert config.input_dtype == torch.float16 and config.output_dtype == torch.float + vec_isa = kwargs.get("vec_isa") + assert vec_isa is not None + vnni_size = 2 + return vec_isa.is_amx_fp16_supported() and k % vnni_size == 0 and alpha == 1 + + +@register_micro_gemm( + *generate_gemm_config( + VecAMX, + [(32, 32, 64), (48, 16, 64)], + input_dtype=torch.int8, + input2_dtype=torch.int8, + output_dtype=torch.int32, + compute_dtype=torch.int32, + extra_check=check_amx_extra, + ), + *generate_gemm_config( + VecAMX, + [(32, 32, 32), (48, 16, 32)], + input_dtype=torch.bfloat16, + input2_dtype=torch.int8, + output_dtype=torch.float, + compute_dtype=torch.float, + extra_check=check_int8_bf16_amx_extra, + ), + *generate_gemm_config( + VecAMX, + [(32, 16, 32), (32, 32, 32), (48, 16, 32), (16, 48, 32)], + input_dtype=torch.bfloat16, + output_dtype=torch.float, + extra_check=check_amx_extra, + ), + *generate_gemm_config( + VecAMX, + [(32, 32, 32), (48, 16, 32), (16, 48, 32)], + input_dtype=torch.float16, + output_dtype=torch.float, + extra_check=check_amx_fp16_extra, + ), + *generate_gemm_config( + VecAMX, + [(32, 32, 64), (48, 16, 64)], + input_dtype=torch.uint8, + input2_dtype=torch.int8, + output_dtype=torch.int32, + compute_dtype=torch.int32, + extra_check=check_amx_extra, + ), +) +class CppMicroGemmAMX(CppMicroGemm): + """ + This class generates the code for micro gemm using Advanced Matrix extension (AMX) + instructions available in 4th generation Intel Xeon for compute. + It supports input types of torch.bfloat16 with fp32 output. + """ + + TEMPLATE_ENTRY = r""" +{{declare_kernel}} { + {{kernel.assert_function}}(N % {{block_n}} == 0, "N dimension must be multiple of {{block_n}}"); + {{kernel.assert_function}}(K % 2 == 0, "K dimension must be multiple of 2"); +{%- if pack_vnni_B_locally %} + {{template.codegen_allocate_weight_buffer("packed_B_buf", input2_t, "K", block_n)}} +{%- endif %} +{%- if use_cached_dequantized_B %} + // Create a stack-allocated buffer for tiles of B. + // Except maybe for the tail-case, an AMX tile of B has 16x32 BF16 elements. + // we cache K * {{block_n}} elements of dequantized B + {{template.codegen_allocate_weight_buffer("dequantized_B_buf", input_t, "K", block_n)}} + const auto buf_size = K * {{block_n}}; + auto load_dequantized_B = [&](int base_idx) { + // Load a tile of B & cache it in L1D. + {{input2_t}}* base_addr = const_cast<{{input2_t}}*>(B) + base_idx; + for (int idx_dq = 0, idx_q = 0; idx_dq < buf_size; idx_q += ldb, idx_dq += {{block_n}}) { + {%- for vec_idx in range(0, block_n, 32) %} + _mm_prefetch(base_addr + idx_q + 64 * ldb, _MM_HINT_T0); + {%- if (block_n - vec_idx) >= 32 %} + // 1) Load 32 x int8 + __m256i v8 = _mm256_loadu_si256((const __m256i*)(base_addr + idx_q + {{vec_idx}})); + // 2) Extract two halves + __m128i v8_lo = _mm256_extracti128_si256(v8, 0); + __m128i v8_hi = _mm256_extracti128_si256(v8, 1); + // 3) Widen each half to i32 + __m512i v32_lo = _mm512_cvtepi8_epi32(v8_lo); + __m512i v32_hi = _mm512_cvtepi8_epi32(v8_hi); + // 4) Convert to f32 + __m512 f_lo = _mm512_cvtepi32_ps(v32_lo); + __m512 f_hi = _mm512_cvtepi32_ps(v32_hi); + // 5) f32 -> bf16 (round-to-nearest-even) and pack 32 lanes to 512b + // Packs the second operand (f_lo) into the lower 16 bf16 lanes and the first (f_hi) into the upper 16. + __m512i bf = (__m512i)_mm512_cvtne2ps_pbh(f_hi, f_lo); + // 6) Store 32 x bf16 (512 bits) + _mm512_storeu_si512((__m512i*)(dequantized_B_buf + idx_dq + {{vec_idx}}), bf); + {%- elif (block_n - vec_idx) >= 16 %} + // 1) Load 16 x int8 (128 bits) + __m128i v8 = _mm_loadu_si128((const __m128i*)(base_addr + idx_q + {{vec_idx}})); + // 2) Widen: 16 x i8 -> 16 x i32 + __m512i v32 = _mm512_cvtepi8_epi32(v8); + // 3) Convert to f32 + __m512 f32 = _mm512_cvtepi32_ps(v32); + // 4) Convert f32 -> bf16 (round-to-nearest-even) + __m256i bf16 = (__m256i)_mm512_cvtneps_pbh(f32); + // 5) Store 16 x bf16 (256 bits) + _mm256_storeu_si256((__m256i*)(dequantized_B_buf + idx_dq + {{vec_idx}}), bf16); + {%- else %} + auto b_int8_tail = at::vec::Vectorized::loadu( + base_addr + idx_q + {{block_n - (block_n % 32)}}, + static_cast({{block_n % 32}}) + ); + auto b_bf16_tail = at::vec::convert<{{input_t}}>(b_int8_tail); + b_bf16_tail.store( + dequantized_B_buf + idx_dq + {{block_n - (block_n % 32)}}, + static_cast({{block_n % 32}}) + ); + {%- endif %} + {%- endfor %} + } + }; +{%- endif %} +// The ldb would not be block_n if N != block_n +{%- if use_cached_dequantized_B or pack_vnni_B_locally %} + const int64_t updated_ldb = {{block_n}}; +{%- else %} + const int64_t updated_ldb = ldb; +{%- endif %} + // TODO(jgong5): loop unroll for M and N + for (int64_t n = 0; n < N; n += {{block_n}}) { +{%- if pack_vnni_B_locally %} + // Pack non-constant weights into VNNI interleaved format in packed_B_buf + at::vec::pack_vnni2(B + n, packed_B_buf, ldb, K, {{block_n}}); +{%- elif use_cached_dequantized_B %} + // Dequantize K * block_n int8 B elements into BF16 + load_dequantized_B(n); +{%- endif %} + for (int64_t m = 0; m < M; m += {{block_m}}) { + int64_t block_m = std::min(M - m, {{block_m}}); + int64_t m_tail = m; +{%- for num_rows in range(block_m, 0, -16) %} + {%- if num_rows != block_m %} + else + {%- endif %} + if (block_m >= {{num_rows}}) { + {{kernel_name}}_amx_kernel_{{num_rows}}_{{num_columns}}( + amx_state, + A + m * lda, +{%- if use_cached_dequantized_B %} + dequantized_B_buf, +{%- elif pack_vnni_B_locally %} + packed_B_buf, +{%- else %} + B + n, +{%- endif %} + C + m * ldc + n, + K, + lda, + updated_ldb, + ldc, + 16 + ); + block_m -= {{num_rows}}; + m_tail += {{num_rows}}; + } +{%- endfor %} + if (block_m > 0) { + {{kernel_name}}_amx_kernel_16_{{num_columns}}( + amx_state, + A + m_tail * lda, +{%- if use_cached_dequantized_B %} + dequantized_B_buf, +{%- elif pack_vnni_B_locally %} + packed_B_buf, +{%- else %} + B + n, +{%- endif %} + C + m_tail * ldc + n, + K, + lda, + updated_ldb, + ldc, + block_m + ); + } + } + } +} +""" + + TEMPLATE_KERNEL = r""" + +template +inline void {{kernel_name}}_amx_kernel_{{num_rows}}_{{num_columns}}( + AMXState& amx_state, + const {{input_t}}* {{restrict_keyword}} A, +{%- if use_cached_dequantized_B %} + const {{input_t}}* {{restrict_keyword}} B, +{%- else %} + const {{input2_t}}* {{restrict_keyword}} B, +{%- endif %} + {{output_t}}* {{restrict_keyword}} C, + int64_t K, + int64_t lda, + int64_t ldb, + int64_t ldc, + uint8_t tilecfg_rows +) { + // TODO(jgong5): add prefetch hint for A, B, C + auto loadconfig = [](const amx_tilecfg& cfg) { + _tile_loadconfig(&cfg); + }; + const auto last_k_offset = K / {{block_k}} * {{block_k}}; + const auto tail_k_size = K - last_k_offset; + if C10_LIKELY (last_k_offset > 0) { + amx_state.configure(tilecfg_rows, 64, {{num_rows}} / 16, {{num_columns}}, loadconfig); + } else { + amx_state.configure(tilecfg_rows, tail_k_size * sizeof({{input_t}}), {{num_rows}} / 16, {{num_columns}}, loadconfig); + } + auto load_c = [&]() { +{%- for tile_row in range(num_rows // 16) %} + {%- for tile_col in range(num_columns) %} + {%- set tile_idx = tile_row * num_columns + tile_col %} + _tile_loadd({{tile_idx}}, C + {{tile_row * 16}} * ldc + {{tile_col * 16}}, ldc * sizeof({{output_t}})); + {%- endfor %} +{%- endfor %} + }; + auto zero_c = [&]() { +{%- for tile_row in range(num_rows // 16) %} + {%- for tile_col in range(num_columns) %} + {%- set tile_idx = tile_row * num_columns + tile_col %} + _tile_zero({{tile_idx}}); + {%- endfor %} +{%- endfor %} + }; + + if constexpr (accum) { + load_c(); + } else { + zero_c(); + } + + auto compute = [&](int k) { +{%- set tile_offset_a = num_rows // 16 * num_columns %} +{%- set tile_offset_b = tile_offset_a + num_rows // 16 %} +{%- for tile_row in range(num_rows // 16) %} + {%- for tile_col in range(num_columns) %} + {%- set tile_idx_a = tile_offset_a + tile_row %} + {%- set tile_idx_b = tile_offset_b + tile_col %} + {%- set tile_idx_c = tile_row * num_columns + tile_col %} + {%- if tile_col == 0 %} + _tile_stream_loadd({{tile_idx_a}}, A + {{tile_row * 16}} * lda + k, lda * sizeof({{input_t}})); + {%- endif %} + {%- if tile_row == 0 %} + _tile_loadd({{tile_idx_b}}, B + k * ldb + {{tile_col * 16 * vnni_size}}, ldb * {{vnni_size}} * sizeof({{input_t}})); + {%- endif %} + {%- if int8_gemm %} + {%- if input_dtype == torch.int8 %} + _tile_dpbssd({{tile_idx_c}}, {{tile_idx_a}}, {{tile_idx_b}}); + {%- else %} + _tile_dpbusd({{tile_idx_c}}, {{tile_idx_a}}, {{tile_idx_b}}); + {%- endif %} + {%- else %} + {%- if input_dtype == torch.float16 %} + _tile_dpfp16ps({{tile_idx_c}}, {{tile_idx_a}}, {{tile_idx_b}}); + {%- else %} + _tile_dpbf16ps({{tile_idx_c}}, {{tile_idx_a}}, {{tile_idx_b}}); + {%- endif %} + {%- endif %} + {%- endfor %} +{%- endfor %} + }; + + {{kernel.unroll_pragma(4)}} + for (int k = 0; k < last_k_offset; k += {{block_k}}) { + compute(k); + } + + auto store_c = [&]() { + // store to C +{%- for tile_row in range(num_rows // 16) %} + {%- for tile_col in range(num_columns) %} + {%- set tile_idx = tile_row * num_columns + tile_col %} + _tile_stored({{tile_idx}}, C + {{tile_row * 16}} * ldc + {{tile_col * 16}}, ldc * sizeof({{output_t}})); + {%- endfor %} +{%- endfor %} + }; + + // TODO(jgong5): move tail k computation to separate loopnest to save tile configuration overhead + if C10_UNLIKELY (tail_k_size > 0) { + if C10_LIKELY (last_k_offset > 0) { + store_c(); + amx_state.configure(tilecfg_rows, tail_k_size * sizeof({{input_t}}), {{num_rows}} / 16, {{num_columns}}, loadconfig); + load_c(); + } + compute(last_k_offset); + } + + store_c(); +} +""" + + def codegen_define(self, kernel: CppTemplateKernel) -> str: + block_m, block_n, block_k = self.register_blocking + assert block_m % 16 == 0, "Only support block_m % 16 == 0 for AMX" + assert block_n % 16 == 0, "Only support block_n % 16 == 0 for AMX" + if self.input_dtype in [torch.uint8, torch.int8]: + assert block_k == 64, "Only support block_k = 64 for AMX INT8" + else: + assert block_k == 32, "Only support block_k = 32 for AMX Bfloat16/Float16" + num_columns = block_n // 16 + options = { + "declare_kernel": self.get_kernel_declaration(), + "use_cached_dequantized_B": ( + self.input_dtype == torch.bfloat16 + and self.input2_dtype in [torch.int8, torch.uint8] + ), + "kernel": kernel, + "block_m": block_m, + "block_n": block_n, + "block_k": block_k, + "num_columns": num_columns, + "restrict_keyword": get_restrict_keyword(), + **self.get_common_options(), + } + result = "" + for num_rows in range(block_m, 0, -16): + amx_kernel_options = {**options, "num_rows": num_rows} + result += KernelTemplate._template_from_string(self.TEMPLATE_KERNEL).render( + amx_kernel_options + ) + result += KernelTemplate._template_from_string(self.TEMPLATE_ENTRY).render( + options + ) + return result + + def codegen_init( + self, + kernel: CppTemplateKernel, + ) -> str: + return "AMXState amx_state;" + + def codegen_finalize( + self, + kernel: CppTemplateKernel, + ) -> str: + return "amx_state.release([]() { _tile_release(); });" + + def get_kernel_extra_args_declare(self) -> str: + return "AMXState& amx_state," + + def get_kernel_extra_args(self, **kwargs) -> list[str]: + return ["amx_state,"] + + def get_b_layout(self): + if self.input_dtype in [torch.uint8, torch.int8]: + return LayoutType.VNNI4 + else: + return LayoutType.VNNI2 + + +# extra check for CppMicroBrgemm +def check_brgemm_extra(config, m, n, k, alpha, num_threads, **kwargs): + assert config.input_dtype == torch.half and config.output_dtype == torch.float + vnni_size = 2 + # use brgemm for Half when amx_fp16 is supported + return torch.cpu._is_amx_fp16_supported() and k % vnni_size == 0 and alpha == 1 + + +@register_micro_gemm( + *generate_gemm_config( + VecAMX, + [(32, 32, 32), (48, 16, 32), (16, 48, 32)], + input_dtype=torch.half, + output_dtype=torch.float, + extra_check=check_brgemm_extra, + ), +) +class CppMicroBrgemm(CppMicroGemm): + """ + This class generates the code for micro gemm using oneDNN brgemm. + It supports input types of torch.half. + """ + + TEMPLATE_ENTRY = r""" +#include +{{declare_kernel}} { +{%- if pack_vnni_B_locally %} + {{template.codegen_allocate_weight_buffer("packed_B_buf", input2_t, "K * N")}} + at::vec::pack_vnni2(B, packed_B_buf, ldb, K, N); +{%- endif %} + at::native::cpublas::brgemm( + M, N, K, + {%- if pack_vnni_B_locally %} + lda, N, ldc, + {%- else %} + lda, ldb, ldc, + {%- endif %} + accum, + A, + {%- if pack_vnni_B_locally %} + packed_B_buf, + {%- else %} + B, + {%- endif %} + C); +} +""" + + def codegen_define(self, kernel: CppTemplateKernel) -> str: + options = { + "declare_kernel": self.get_kernel_declaration(), + "kernel": kernel, + "block_m": self.register_blocking.block_m, + "block_n": self.register_blocking.block_n, + "block_k": self.register_blocking.block_k, + "restrict_keyword": get_restrict_keyword(), + **self.get_common_options(), + } + result = "" + result += KernelTemplate._template_from_string(self.TEMPLATE_ENTRY).render( + options + ) + return result + + def codegen_finalize( + self, + kernel: CppTemplateKernel, + ) -> str: + return "at::native::cpublas::brgemm_release();" + + def get_b_layout(self): + assert self.input_dtype == torch.half and torch.cpu._is_amx_fp16_supported() + return LayoutType.VNNI2 + + +def check_woq_int4_extra(config, m, n, k, alpha, num_threads, **kwargs): + if alpha != 1: + return False + q_group_size = kwargs.get("q_group_size") + assert q_group_size is not None + if ( + q_group_size not in [32, 64, 128] + or k % q_group_size != 0 + or config.register_blocking.block_k > q_group_size + ): + return False + return k % config.register_blocking.block_k == 0 and n % 64 == 0 + + +@register_micro_gemm( + # TODO: support float/half input + *generate_gemm_config( + VecAVX512, + [(4, 64, 32), (4, 64, 64), (4, 64, 128)], + input_dtype=torch.bfloat16, + input2_dtype=torch.uint8, + output_dtype=torch.float, + compute_dtype=torch.float, + extra_check=check_woq_int4_extra, + ), +) +class CppMicroGemmWoQInt4Avx512(CppMicroGemmFP32Vec): + """ + This class generates the code for WoQ int4 micro gemm using AVX512 intrinsics. + It is based on the corresponding ATen kernel. + Shape of packed weight = [N // 64, K, 32], viewed as [N, K // 2] + Shape of packed ScalesAndZeros = [K // group_size, N, 2] + """ + + TEMPLATE_ENTRY = r""" +{{declare_kernel}} { + {{kernel.assert_function}}(N % {{block_n}} == 0, "N dimension must be multiple of {{block_n}}"); + {{kernel.assert_function}}(K % {{block_k}} == 0, "K dimension must be multiple of {{block_k}}"); + auto group_size = q_group_size; + for (int64_t m = 0; m < M; m += {{block_m}}) { + int64_t block_m = std::min(M - m, {{block_m}}); + for (int64_t n = 0; n < N; n += {{block_n}}) { + if (block_m == {{block_m}}) { + {{kernel_name}}_kernel<{{block_m}}, {{block_n}}, accum>( + A + m * lda, + reinterpret_cast(B) + n * ldb, + C + m * ldc + n, + K, + lda, + /* ldb */ {{block_n}} / 2, + ldc, + group_size, + ScaleAndZeros + n * 2, + lds, + k_start + ); + } else { + switch (block_m) { + {%- for b in range(block_m - 1, 0, -1) %} + case {{b}}: + {{kernel_name}}_kernel<{{b}}, {{block_n}}, accum>( + A + m * lda, + reinterpret_cast(B) + n * ldb, + C + m * ldc + n, + K, + lda, + /* ldb */ {{block_n}} / 2, + ldc, + group_size, + ScaleAndZeros + n * 2, + lds, + k_start + ); + break; + {%- endfor %} + default: + {{kernel.assert_function}}(false, "Unsupported block_m: ", block_m); + } + } + } + } +} +""" + + TEMPLATE_KERNEL = r""" +inline bool {{kernel_name}}_is_block_start(int index, int k_start, int group_size) { + return (k_start + index) % group_size == 0; +} + +inline __m128i {{kernel_name}}_convert_int4_to_int8(const uint8_t* data) { + __m128i tmp = _mm_loadu_si64((const __m128i*)data); + __m128i bytes = _mm_cvtepu8_epi16(tmp); + const __m128i lowMask = _mm_set1_epi8(0xF); + __m128i high = _mm_andnot_si128(lowMask, bytes); + __m128i low = _mm_and_si128(lowMask, bytes); + high = _mm_slli_epi16(high, 4); + bytes = _mm_or_si128(low, high); + return bytes; +} + +template +inline void {{kernel_name}}_kernel( + const {{input_t}}* {{restrict_keyword}} A, + const uint8_t* {{restrict_keyword}} B, + {{output_t}}* {{restrict_keyword}} C, + int64_t K, + int64_t lda, + int64_t ldb, + int64_t ldc, + int64_t q_group_size, + const at::BFloat16* {{restrict_keyword}} ScaleAndZeros, + int64_t lds, // leading dimension of ScaleAndZeros + int64_t k_start) { + constexpr int BLOCK_K = {{block_k}}; + constexpr int ROWS = BLOCK_M; + constexpr int COLS = BLOCK_N / 16; + + const int PREFETCH_SIZE_K = 16 * 4; + const int PREFETCH_SIZE_KB = (PREFETCH_SIZE_K + BLOCK_K - 1) / BLOCK_K; + + // number of blocks on K + const int KB = K / BLOCK_K; + + __m512 va; + __m512 vb[COLS]; + __m512 vc[ROWS * COLS]; + __m512 scale[COLS]; + __m512 zero[COLS]; + + // Lookup table to de-quantize int4 values to bf16. + // Values are dequantized as truly int4 [-8, 7] range; + // + // dequant = (bf16(int4_value) * bf16_scale) + bf16_zero + // + static const __m512 lut = _mm512_set_ps( + 7.0f, 6.0f, 5.0f, 4.0f, + 3.0f, 2.0f, 1.0f, 0.0f, + -1.0f, -2.0f, -3.0f, -4.0f, + -5.0f, -6.0f, -7.0f, -8.0f); + + // index for transpose + static const __m512i idx1 = _mm512_set_epi32( + 30, 28, 26, 24, 22, 20, 18, 16, + 14, 12, 10, 8, 6, 4, 2, 0); + static const __m512i idx2 = _mm512_set_epi32( + 31, 29, 27, 25, 23, 21, 19, 17, + 15, 13, 11, 9, 7, 5, 3, 1); + + // load scale and zero point + auto load_scale_and_zeros = [&](int i, int _kb) { + // load 2x bfloat16 vector + __m512i t = _mm512_loadu_si512((__m512i*)(ScaleAndZeros + _kb * lds + 32 * i)); + _mm_prefetch(ScaleAndZeros + (_kb + PREFETCH_SIZE_KB) * lds + 32 * i, _MM_HINT_T0); + + // convert to 2x f32 vector + __m512 a, b; + at::vec::cvtbf16_fp32(t, a, b); + + // transpose scale_and_zero from {16, 2} to {2, 16} + // inputs: + // a: {s0, z0, s1, z1, ..., s7, z7} + // b: {s8, z8, s9, z9, ..., s15, z15} + // output: + // scale: {s0, s1, s2, ..., s15} + // zero: {z0, z1, z2, ..., z15} + scale[i] = _mm512_mask_permutex2var_ps(a, 0xffff, idx1, b); + zero[i] = _mm512_mask_permutex2var_ps(a, 0xffff, idx2, b); + }; + + auto loadc = [&](auto i) { + if constexpr (accum) { + constexpr int row = i / COLS; + constexpr int col = i % COLS; + vc[i] = _mm512_loadu_ps(C + row * ldc + col * 16); + } else { + vc[i] = _mm512_setzero_ps(); + } + }; + c10::ForcedUnroll{}(loadc); + + auto compute = [&, COLS](auto i, int k) { + constexpr int row = i / COLS; + constexpr int col = i % COLS; + + if constexpr (col == 0) { + float aa = static_cast(A[row * lda + k]); + _mm_prefetch(A + row * lda + k + PREFETCH_SIZE_K, _MM_HINT_T0); + va = _mm512_set1_ps(aa); + } + + if constexpr (row == 0) { + if constexpr (COLS == 4) { + // when BLOCK_N = 64, handle each row at a time + // to reduce de-quantize overhead. + if constexpr (col == 0) { + __m256i b4 = _mm256_loadu_si256((__m256i*)(B + k * ldb)); + _mm_prefetch(B + (k + PREFETCH_SIZE_K) * ldb, _MM_HINT_T0); + + __m512i b32 = _mm512_cvtepu8_epi32(_mm256_castsi256_si128(b4)); + vb[0] = _mm512_permutexvar_ps(b32, lut); + vb[0] = _mm512_fmadd_ps(vb[0], scale[0], zero[0]); + vb[2] = _mm512_permutexvar_ps(_mm512_srli_epi32(b32, 4), lut); + vb[2] = _mm512_fmadd_ps(vb[2], scale[2], zero[2]); + + b32 = _mm512_cvtepu8_epi32(_mm256_extracti128_si256(b4, 1)); + vb[1] = _mm512_permutexvar_ps(b32, lut); + vb[1] = _mm512_fmadd_ps(vb[1], scale[1], zero[1]); + vb[3] = _mm512_permutexvar_ps(_mm512_srli_epi32(b32, 4), lut); + vb[3] = _mm512_fmadd_ps(vb[3], scale[3], zero[3]); + } + } else { + __m128i b8 = {{kernel_name}}_convert_int4_to_int8(B + k * ldb + col * 8); + __m512i b32 = _mm512_cvtepu8_epi32(b8); + vb[col] = _mm512_permutexvar_ps(b32, lut); + vb[col] = _mm512_fmadd_ps(vb[col], scale[col], zero[col]); + } + } + + constexpr int idx = row * COLS + col; + vc[idx] = _mm512_fmadd_ps(va, vb[col], vc[idx]); + }; + + for (int k = 0, kb = 0; k < K; ++k) { + if ({{kernel_name}}_is_block_start(k, k_start, q_group_size)) { + c10::ForcedUnroll{}(load_scale_and_zeros, kb++); + } + c10::ForcedUnroll{}(compute, k); + } + + //store to C + auto storec = [&, COLS](auto i) { + constexpr int row = i / COLS; + constexpr int col = i % COLS; + _mm512_storeu_ps(C + row * ldc + col * 16, vc[i]); + }; + c10::ForcedUnroll{}(storec); +} +""" + + def get_kernel_extra_args_declare(self) -> str: + return ( + "const int64_t q_group_size,\n" + " const at::BFloat16* __restrict__ ScaleAndZeros,\n" + " const int64_t lds,\n" + " int64_t k_start," + ) + + def get_kernel_extra_args(self, **kwargs) -> list[str]: + assert "kernel" in kwargs + assert "qscale_and_zeros" in kwargs + kernel = kwargs["kernel"] + qscale_and_zeros = kwargs["qscale_and_zeros"] + return [ + "group_size,", + f"&({kernel.index(qscale_and_zeros, [0, 0, 0])}),", + "N * 2,", # lds + "k_start,", + ] + + def is_woq_int4(self): + return True + + +@register_micro_gemm( + *generate_gemm_config( + VecAMX, + [ # (block_m, block_n, block_k) + (16, 32, 32), + (32, 32, 32), + ], + input_dtype=torch.bfloat16, + input2_dtype=torch.uint8, + output_dtype=torch.float, + compute_dtype=torch.float, + extra_check=check_amx_extra, + ), +) +class CppMicroGemmWoQInt4Amx(CppMicroGemmAMX): + """ + This class generates the code for WoQ int4 micro gemm using AMX intrinsics, + which are available on 4th and newer generations of Intel Xeon. + Shape of packed weight = [N // 32, K, 16], viewed as [N, K // 2] + Shape of packed ScalesAndZeros = [K // group_size, N, 2] + Reuse TEMPLATE_KERNEL of CppMicroGemmAMX. + """ + + TEMPLATE_ENTRY = r""" +inline bool {{kernel_name}}_is_block_start(int index, int k_start, int group_size) { + // check if (k_start + index) % group_size == 0, assuming group_size = 32/64/128 + return ((k_start + index) & (group_size - 1)) == 0; +} + +{{declare_kernel}} { + {{kernel.assert_function}}(N % {{block_n}} == 0, "N dimension must be multiple of {{block_n}}"); + {{kernel.assert_function}}(K % 2 == 0, "K dimension must be multiple of 2"); + {{kernel.assert_function}}({{block_n}} == 32, "block_n must be 32 for WOQ int4"); + + // Create a stack-allocated buffer for tiles of B. + // Except maybe for the tail-case, an AMX tile of B has 16x32 BF16 elements. + // we cache K * {{block_n}} elements of dequantized B + {{template.codegen_allocate_weight_buffer("dequantized_B_buf", input_t, "K", block_n)}} + + constexpr int BLOCK_K = {{block_k}}; + constexpr int64_t BLOCK_N = {{block_n}}; + constexpr int COLS = BLOCK_N / 16; + const int PREFETCH_SIZE_K = 16 * 4; + const int PREFETCH_SIZE_KB = (PREFETCH_SIZE_K + BLOCK_K - 1) / BLOCK_K; + const int KB = K / BLOCK_K; + + __m512i b32[COLS * 2]; + __m512 vb[COLS * 2]; + __m512 scale[COLS]; + __m512 zero[COLS]; + + // Lookup table to de-quantize int4 values to bf16. + // Values are dequantized as truly int4 [-8, 7] range; + // + // dequant = (bf16(int4_value) * bf16_scale) + bf16_zero + // + static const __m512 lut = _mm512_set_ps( + 7.0f, 6.0f, 5.0f, 4.0f, + 3.0f, 2.0f, 1.0f, 0.0f, + -1.0f, -2.0f, -3.0f, -4.0f, + -5.0f, -6.0f, -7.0f, -8.0f); + + // index for transpose + static const __m512i idx1 = _mm512_set_epi32( + 30, 28, 26, 24, 22, 20, 18, 16, + 14, 12, 10, 8, 6, 4, 2, 0); + static const __m512i idx2 = _mm512_set_epi32( + 31, 29, 27, 25, 23, 21, 19, 17, + 15, 13, 11, 9, 7, 5, 3, 1); + + // Indices for VNNI layout conversion + __m512i idx_low = _mm512_set_epi32( + 0x17, + 0x07, + 0x16, + 0x06, + 0x15, + 0x05, + 0x14, + 0x04, + 0x13, + 0x03, + 0x12, + 0x02, + 0x11, + 0x01, + 0x10, + 0x00); + __m512i idx_high = _mm512_set_epi32( + 0x1f, + 0x0f, + 0x1e, + 0x0e, + 0x1d, + 0x0d, + 0x1c, + 0x0c, + 0x1b, + 0x0b, + 0x1a, + 0x0a, + 0x19, + 0x09, + 0x18, + 0x08); + + // load scale and zero point + auto load_scale_and_zeros = [&](int i, int _kb) { + // load 2x bfloat16 vector + __m512i t = _mm512_loadu_si512((__m512i*)(ScaleAndZeros + _kb * lds + 32 * i)); + _mm_prefetch(ScaleAndZeros + (_kb + PREFETCH_SIZE_KB) * lds + 32 * i, _MM_HINT_T0); + + // convert to 2x f32 vector + __m512 a, b; + at::vec::cvtbf16_fp32(t, a, b); + + // transpose scale_and_zero from {16, 2} to {2, 16} + // inputs: + // a: {s0, z0, s1, z1, ..., s7, z7} + // b: {s8, z8, s9, z9, ..., s15, z15} + // output: + // scale: {s0, s1, s2, ..., s15} + // zero: {z0, z1, z2, ..., z15} + scale[i] = _mm512_mask_permutex2var_ps(a, 0xffff, idx1, b); + zero[i] = _mm512_mask_permutex2var_ps(a, 0xffff, idx2, b); + }; + + // Dequantize a B block of 2 * block_n into bf16 + // So, it handles k and k+1 at the same time + auto dequantize_B = [&](int n) { + constexpr int64_t ldb_int4 = BLOCK_N / 2; // 16 + for (int k = 0, kb = 0; k < K; k += 2) { + // Since block_k must be 32 for AMX microkernels, k_start may not be + // a multiple of q_group_size. In that case, we need to load scales + // and zero points immediately when k == 0 here + if ({{kernel_name}}_is_block_start(k, k_start, q_group_size) || k == 0) { + c10::ForcedUnroll{}(load_scale_and_zeros, kb++); + } + + _mm_prefetch(B + (k + PREFETCH_SIZE_K) * ldb_int4, _MM_HINT_T0); + + // load 256 bits = 64 elements in int4 + __m128i b4 = _mm_loadu_si128((__m128i*)(B + n / 2 * K + k * ldb_int4)); + b32[0] = _mm512_cvtepu8_epi32(b4); + b32[1] = _mm512_srli_epi32(b32[0], 4); + vb[0] = _mm512_permutexvar_ps(b32[0] , lut); + vb[0] = _mm512_fmadd_ps(vb[0], scale[0], zero[0]); + vb[1] = _mm512_permutexvar_ps(b32[1], lut); + vb[1] = _mm512_fmadd_ps(vb[1], scale[1], zero[1]); + + __m128i b4_2 = _mm_loadu_si128((__m128i*)(B + n / 2 * K + (k + 1) * ldb_int4)); + b32[0 + COLS] = _mm512_cvtepu8_epi32(b4_2); + b32[1 + COLS] = _mm512_srli_epi32(b32[0 + COLS], 4); + vb[0 + COLS] = _mm512_permutexvar_ps(b32[0 + COLS] , lut); + vb[0 + COLS] = _mm512_fmadd_ps(vb[0 + COLS], scale[0], zero[0]); + vb[1 + COLS] = _mm512_permutexvar_ps(b32[1 + COLS], lut); + vb[1 + COLS] = _mm512_fmadd_ps(vb[1 + COLS], scale[1], zero[1]); + + for (int i = 0; i < COLS; i++) { + // convert to VNNI + auto low = _mm512_permutex2var_ps(vb[i], idx_low, vb[i + COLS]); + auto high = _mm512_permutex2var_ps(vb[i], idx_high, vb[i + COLS]); + // convert lower 16 float32 values to bfloat16 + auto v0_bf16 = reinterpret_cast<__m256i>(_mm512_cvtneps_pbh(low)); + // convert higher 16 float32 values to bfloat16 + auto v1_bf16 = reinterpret_cast<__m256i>(_mm512_cvtneps_pbh(high)); + // combine the lower 16 and higher 16 bfloat16 values + auto v = _mm512_castsi256_si512(v0_bf16); + v = _mm512_inserti64x4(v, v1_bf16, 1); + // store the VNNI format bfloat16 values + {{input_t}}* addr = dequantized_B_buf + k * 32 + (i % 2) * 32; + _mm512_storeu_si512(addr, v); + } + } + }; + + for (int64_t n = 0; n < N; n += {{block_n}}) { + // Dequantize K * block_n int8 B elements into BF16 + dequantize_B(n); + for (int64_t m = 0; m < M; m += {{block_m}}) { + int64_t block_m = std::min(M - m, {{block_m}}); + int64_t m_tail = m; + {%- for num_rows in range(block_m, 0, -16) %} + {%- if num_rows != block_m %} + else + {%- endif %} + if (block_m >= {{num_rows}}) { + {{kernel_name}}_amx_kernel_{{num_rows}}_{{num_columns}}( + amx_state, + A + m * lda, + dequantized_B_buf + n * K, + C + m * ldc + n, + K, + lda, + {{block_n}}, + ldc, + 16 + ); + block_m -= {{num_rows}}; + m_tail += {{num_rows}}; + } + {%- endfor %} + if (block_m > 0) { + {{kernel_name}}_amx_kernel_16_{{num_columns}}( + amx_state, + A + m_tail * lda, + dequantized_B_buf + n * K, + C + m_tail * ldc + n, + K, + lda, + {{block_n}}, + ldc, + block_m + ); + } + } // for m + } // for n +} +""" + + def get_kernel_extra_args_declare(self) -> str: + return ( + "AMXState& amx_state,\n" + " const int64_t q_group_size,\n" + " const c10::BFloat16* __restrict__ ScaleAndZeros,\n" + " const int64_t lds,\n" + " int64_t k_start," + ) + + def get_kernel_extra_args(self, **kwargs) -> list[str]: + assert "kernel" in kwargs + assert "qscale_and_zeros" in kwargs + kernel = kwargs["kernel"] + qscale_and_zeros = kwargs["qscale_and_zeros"] + return [ + "amx_state,", + "group_size,", + f"&({kernel.index(qscale_and_zeros, [0, 0, 0])}),", + "N * 2,", # lds + "k_start,", + ] + + def is_woq_int4(self): + return True + + +def create_micro_gemm( + name, + m, + n, + k, + input_dtype, + input2_dtype, + output_dtype=None, + compute_dtype=None, + alpha=1, + num_threads=-1, + use_ref=True, + q_group_size=None, +) -> Optional[CppMicroGemm]: + """ + Based on the provided info, try to find the config of the micro-kernel that would + deliver the best performance in terms of lower latency for this case. + """ + + def create_from_config(cls, config: CppMicroGemmConfig): + return cls( + name, + config.input_dtype, + config.input2_dtype, + config.output_dtype, + config.compute_dtype, + config.register_blocking, + alpha, + ) + + def skip_amx_kernel_for_woq(dynamic_M): + # For WoQ GEMM, AMX micro-kernel may not perform well if m is small. + # Exception: for dynamic shapes, we consider using the AMX micro-kernel. + if ( + dynamic_M + or input_dtype != torch.bfloat16 + or input2_dtype not in [torch.int8, torch.uint8] + ): + return False + m_threshold = 5 + return m < m_threshold + + assert isinstance(n, int) or n.is_number, n + assert isinstance(k, int) or k.is_number, k + from ..utils import has_free_symbols + + dynamic_M = has_free_symbols((m,)) + m = V.graph.sizevars.size_hint(m, fallback=1) if dynamic_M else m + assert isinstance(m, int) or m.is_number, m + if output_dtype is None: + output_dtype = input_dtype + if compute_dtype is None: + compute_dtype = output_dtype + if num_threads < 0: + num_threads = parallel_num_threads() + vec_isa = pick_vec_isa() + matched_configs = [] + for cls, configs in micro_gemm_configs.items(): + for config in configs: + if not issubclass(vec_isa.__class__, config.vec_isa_cls): + continue + if ( + config.input_dtype == input_dtype + and config.compute_dtype == compute_dtype + and config.input2_dtype == input2_dtype + and config.output_dtype == output_dtype + # The output_dtype here is the output dtype of the micro-kernel. + # In some cases, the actual output dtype of the op for which the micro-kernel + # is being created would be same as that of the activation, but the micro-kernels + # compute output in Float/int32, which is converted in the GEMM template. This is + # subject to change in the future. + ): + if config.extra_check is not None and not config.extra_check( + config, + m, + n, + k, + alpha, + num_threads, + dynamic_M=dynamic_M, + q_group_size=q_group_size, + vec_isa=vec_isa, + ): + continue + block_m, block_n, block_k = config.register_blocking + if config.vec_isa_cls == VecAMX and skip_amx_kernel_for_woq(dynamic_M): + continue + # Criteria on the ranking of configurations + # 1. ISA: AMX > VNNI > VEC + # 2. Dividable by block sizes (block_m, block_n, block_k) + # 3. Number of mxn blocks is large enough to occupy all the threads + # 4. Register blocks are larger + isa_score = 0 + if config.vec_isa_cls == VecAMX: + isa_score += 2 + elif config.vec_isa_cls == VecAVX512VNNI: + isa_score += 1 + dividable_score = 0 + if m % block_m == 0: + dividable_score += 1 + if n % block_n == 0: + dividable_score += 1 + if k % block_k == 0: + dividable_score += 1 + occupancy_score = 0 + n_blocks = (n + block_n - 1) // block_n + total_mxn_blocks = n_blocks * ((m + block_m - 1) // block_m) + if n_blocks >= num_threads: + occupancy_score += 1 + if total_mxn_blocks >= num_threads: + occupancy_score += 1 + register_bytes = ( + block_m * block_n * config.compute_dtype.itemsize + + (block_m * block_k + block_k * block_n) + * config.input_dtype.itemsize + ) + size_score = register_bytes + # if number of mxn blocks can not occupy all the threads, + # we favor smaller register blocks. + if occupancy_score == 0: + size_score = 0 - register_bytes + matched_configs.append( + ( + (isa_score, dividable_score, occupancy_score, size_score), + cls, + config, + ) + ) + if len(matched_configs) == 0: + if use_ref: + return CppMicroGemmRef( + name, input_dtype, input2_dtype, output_dtype, compute_dtype, alpha + ) + else: + return None + # TODO(jgong5): allow autotuning on choices of configs + return create_from_config(*max(matched_configs, key=operator.itemgetter(0))[1:]) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_template.py new file mode 100644 index 0000000000000000000000000000000000000000..c01ca4363685deff18328b48026fa2d33f92e29f --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_template.py @@ -0,0 +1,140 @@ +# mypy: allow-untyped-defs +import ctypes +import functools +import itertools +import logging +import sys +from collections.abc import Callable, Iterable +from typing import Optional, Union +from unittest.mock import patch + +import sympy + +from .. import config, ir +from ..autotune_process import CppBenchmarkRequest, TensorMeta +from ..utils import IndentedBuffer, Placeholder, unique +from ..virtualized import V +from .common import KernelTemplate +from .cpp_template_kernel import CppTemplateCaller, CppTemplateKernel + + +log = logging.getLogger(__name__) + + +class CppTemplate(KernelTemplate): + index_counter = itertools.count() + + def __init__( + self, + name: str, + input_nodes, + layout: ir.Layout, + num_threads: int, + epilogue_creator: Optional[Callable[[ir.Buffer], ir.Pointwise]] = None, + ) -> None: + super().__init__(name) + self.input_nodes = input_nodes + self.index = next(self.index_counter) + self.output_node: Union[ir.Buffer, list[ir.Buffer]] = ir.Buffer( + name=f"buf_out{self.index}", layout=layout + ) + self.layout = layout + self.num_threads = num_threads + self.epilogue_creator = epilogue_creator + + def generate(self, **kwargs): + kernel_name = f"cpp_{self.name}" + with ( + patch.object(V.graph, "get_dtype", self._fake_get_dtype(self.output_node)), + patch.object(ir.FlexibleLayout, "allow_indexing", True), + V.graph.set_current_device(self.layout.device), + CppTemplateKernel( + kernel_name=kernel_name, num_threads=self.num_threads + ) as kernel, + ): + code = kernel.render(self, **kwargs) + _, call_args, _, _ = kernel.args.python_argdefs() + log.debug("Generated Code:\n%s", code) + log.debug( + "Args: cpp_argdefs: %s, python_argdefs: %s", + kernel.args.cpp_argdefs(), + kernel.args.python_argdefs(), + ) + + expected_args = list( + unique(input_node.get_name() for input_node in self.input_nodes) + ) + if isinstance(self.output_node, Iterable): + expected_args.extend([node.get_name() for node in self.output_node]) + else: + expected_args.extend([self.output_node.get_name()]) + assert list(call_args)[: len(expected_args)] == expected_args, ( + call_args, + expected_args, + ) + extra_args = V.graph.sizevars.size_hints( + map(sympy.expand, call_args[len(expected_args) :]) + ) + # Cast the size hint from int to ctypes.c_ulonglong explicitly + # since in cpp kernel, we bind it to C long + extra_args = tuple(ctypes.c_ulonglong(x) for x in extra_args) + + kernel_hash_name = f"cpp_{self.name}_{self.index}" + + # Create the BenchmarkRequest for CPP + bmreq = CppBenchmarkRequest( + kernel_name=kernel_name, + input_tensor_meta=TensorMeta.from_irnodes(self.input_nodes), + # pyrefly: ignore [bad-argument-type] + output_tensor_meta=TensorMeta.from_irnodes(self.output_node), + extra_args=extra_args, + source_code=code, + ) + + def make_kernel_render( + template_node: ir.CppTemplateBuffer, + flag_template_buffer_has_other_users: bool, + epilogue_nodes: Optional[list[ir.IRNode]] = None, + ): + kernel = CppTemplateKernel( + kernel_name=str(Placeholder.KERNEL_NAME), num_threads=self.num_threads + ) + render = functools.partial( + kernel.render, + self, + template_buffer_node=template_node, + flag_template_buffer_has_other_users=flag_template_buffer_has_other_users, + epilogue_nodes=epilogue_nodes, + **kwargs, + ) + return kernel, render + + return CppTemplateCaller( + kernel_hash_name, + self.name, + self.input_nodes, + # pyrefly: ignore [index-error] + self.output_node[0].get_layout() + if isinstance(self.output_node, Iterable) + else self.output_node.get_layout(), + make_kernel_render, + bmreq, + self, + ) + + def header(self) -> IndentedBuffer: + res = IndentedBuffer() + res.writeline("#include ") + # TODO: add c10::ForcedUnroll test to test_aoti_abi_check + res.splice("""#include """) + res.splice("""#include """) + enable_kernel_profile = config.cpp.enable_kernel_profile and sys.platform in [ + "linux", + "win32", + ] + if enable_kernel_profile: + res.writelines(["#include "]) + return res + + def render(self, **kwargs) -> str: + raise NotImplementedError diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_template_kernel.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_template_kernel.py new file mode 100644 index 0000000000000000000000000000000000000000..1434398eac8a7e095a6ebb7d9c17e81cde8db11e --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_template_kernel.py @@ -0,0 +1,621 @@ +# mypy: allow-untyped-defs +import itertools +from collections.abc import Callable, Iterable +from typing import Any, Optional, Union +from unittest.mock import patch + +import sympy +from sympy.parsing.sympy_parser import parse_expr + +import torch +from torch._inductor.utils import do_bench_using_profiling +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.symbol import SymT + +from .. import config, cpp_builder, ir, lowering as L +from ..autotune_process import CppBenchmarkRequest +from ..loop_body import LoopBody +from ..select_algorithm import PartialRender +from ..utils import sympy_index_symbol, sympy_index_symbol_with_prefix +from ..virtualized import V +from .common import REMOVED +from .cpp import CppKernel, CppKernelProxy, KernelGroup, ParallelDepth +from .cpp_utils import cexpr_index, DTYPE_TO_CPP, LocalBufferContext + + +def parse_expr_with_index_symbols(expr): + if isinstance(expr, sympy.Expr): + return expr + elif isinstance(expr, (list, tuple)): + return [parse_expr_with_index_symbols(e) for e in expr] + else: + expr = parse_expr(str(expr)) + int_symbols = {sym: sympy_index_symbol(sym.name) for sym in expr.free_symbols} + return expr.subs(int_symbols) + + +def wrap_with_tensorbox(node) -> Union[ir.TensorBox, ir.ShapeAsConstantBuffer]: + return ( + ir.TensorBox.create(node) if isinstance(node, ir.Buffer) else ir.TensorBox(node) + ) + + +class CppTemplateKernel(CppKernel): + def __init__(self, kernel_name, num_threads): + super().__init__(None, num_threads) + self.kernel_name = kernel_name + self.render_hooks = {} + self.local_buffers = {} + + def render(self, template, **kwargs): + return PartialRender( + template.render(kernel=self, **kwargs), self.render_hooks + ).finalize_all() + + def def_kernel( + self, + inputs: dict[str, ir.Buffer], + outputs: dict[str, ir.Buffer], + aliases: Optional[dict[str, str]] = None, + function_name: str = "", + extra_sizevars: Optional[list[sympy.Expr]] = None, + placeholder: str = "", + ) -> str: + if len(function_name) == 0: + function_name = str(self.kernel_name) + for name, inp in inputs.items(): + if inp is not None: + self.args.input_buffers[inp.get_name()] = name + for name, out in outputs.items(): + self.args.output_buffers[out.get_name()] = name + if aliases is not None: + for alias, orig in aliases.items(): + if orig in self.args.input_buffers: + self.args.input_buffers[alias] = self.args.input_buffers[orig] + if orig in self.args.output_buffers: + self.args.output_buffers[alias] = self.args.output_buffers[orig] + + unique_sizevars = OrderedSet( + s + for input in inputs.values() + if input is not None + for sym in itertools.chain(input.get_size(), input.get_stride()) + if isinstance(sym, sympy.Expr) + for s in sym.free_symbols + ) + unique_sizevars.update( + s + for sym in extra_sizevars or [] + if isinstance(sym, sympy.Expr) + for s in sym.free_symbols + ) + unique_sizevars.update( + s + for output in outputs.values() + for sym in itertools.chain(output.get_size(), output.get_stride()) + if isinstance(sym, sympy.Expr) + for s in sym.free_symbols + ) + sizevars = sorted(unique_sizevars, key=str) + for sizevar in sizevars: + self.args.sizevars[sizevar] = f"k{sizevar}" + + def hook(): + # remove all aliases before generate function definition + if aliases is not None: + for alias in aliases: + if alias in self.args.input_buffers: + raise AssertionError( + f"input_buffers cannot be removed: {alias}" + ) + if alias in self.args.output_buffers: + self.args.output_buffers[alias] = REMOVED + cpp_argdefs, _, _ = self.args.cpp_argdefs() + return f"void {function_name}({', '.join(cpp_argdefs)})" + + assert placeholder not in self.render_hooks + self.render_hooks[placeholder] = hook + return placeholder + + def call_kernel(self, name: str, node: ir.CppTemplateBuffer): + wrapper = V.graph.wrapper_code + _, call_args, arg_types = self.args.cpp_argdefs() + wrapper.generate_kernel_call(name, call_args, triton=False, arg_types=arg_types) + + def dtype(self, node: ir.Buffer) -> str: + return DTYPE_TO_CPP[node.get_dtype()] + + def acc_dtype(self, node: ir.Buffer) -> str: + if node.get_dtype() in [torch.float32, torch.bfloat16, torch.half]: + return "float" + else: + raise NotImplementedError(f"Unsupported dtype: {node.get_dtype()}") + + def size(self, node: ir.Buffer, dim: int) -> str: + return cexpr_index(self.rename_indexing(node.get_size()[dim])) + + def stride(self, node: ir.Buffer, dim: int) -> str: + return cexpr_index(self.rename_indexing(node.get_stride()[dim])) + + def index(self, node: ir.Buffer, indices: list[Any]) -> str: + indexer = node.get_layout().as_fixed().make_indexer() + index = indexer(parse_expr_with_index_symbols(indices)) + index = self.rename_indexing(index) + outer_name = node.get_name() + inner_name = ( + outer_name + if outer_name in self.local_buffers + else self.args.input(node.get_name()) + ) + return f"{inner_name}[{cexpr_index(index)}]" + + def slice_nd(self, node, ranges: list[tuple[Any, Any]]) -> ir.ReinterpretView: + """ + Slice the given node with a list of ranges (start and end) corresponding to its dims. + The dim is not sliced if the corresponding range is empty. + """ + assert len(ranges) == len(node.get_size()), f"{ranges=}, {node=}" + sliced = wrap_with_tensorbox(node) + for dim, _range in enumerate(ranges): + if len(_range) == 0: + continue + assert len(_range) == 2 + start, end = parse_expr_with_index_symbols(_range) + sliced = L.slice_(sliced, dim, start, end, clamp=False) + assert isinstance(sliced, ir.TensorBox) + assert isinstance(sliced.data, ir.ReinterpretView), sliced.data + return sliced.data + + def select(self, node, dim: int, idx: int) -> ir.ReinterpretView: + # We avoid using L.select here because we need clamp=False so the dim after slicing + # is 1 instead of a sympy expression of symbol - dim_size. + node = wrap_with_tensorbox(node) + idx = ir.View.handle_negative_index(idx, node.get_size()[dim]) + sliced = L.squeeze(L.slice_(node, dim, idx, idx + 1, clamp=False), dim) + assert isinstance(sliced.data, ir.ReinterpretView), sliced.data + return sliced.data + + def view(self, node, sizes: list[Any]) -> ir.IRNode: + node = wrap_with_tensorbox(node) + sizes = parse_expr_with_index_symbols(sizes) + return L.view(node, sizes).data # type: ignore[arg-type] + + def permute(self, node, dims): + node = wrap_with_tensorbox(node) + permuted = L.permute(node, dims).data + assert isinstance(permuted, ir.ReinterpretView) + return permuted + + def maybe_codegen_profile(self) -> str: + if config.cpp.enable_kernel_profile: + graph_id = V.graph.graph_id + prefix = "graph_" + str(graph_id) + "_" if graph_id is not None else "" + handle_str = ( + "torch::aot_inductor::RAIIAtenRecordFunctionHandle " + f'record_{prefix}{self.kernel_name}_("{prefix}{self.kernel_name}", nullptr);' + ) + return handle_str + else: + return "" + + def unroll_pragma(self, unroll): + if cpp_builder.is_gcc(): + return f"#pragma GCC unroll {unroll}" + else: + return f"#pragma unroll {unroll}" + + def define_buffer(self, name, sizes: list[Any], dtype=torch.float) -> str: + """Define kernel local buffer""" + sizes = parse_expr_with_index_symbols(sizes) + buf = ir.Buffer( + name=name, layout=ir.FixedLayout(torch.device("cpu"), dtype, sizes) + ) + self.local_buffers[name] = buf + ctype = f"{DTYPE_TO_CPP[dtype]}" + numel = f"{cexpr_index(buf.get_numel())}" + return f"auto _{name} = std::make_unique<{ctype}[]>({numel}); auto {name} = _{name}.get();" + + def define_stack_allocated_buffer( + self, name, sizes: list[Any], dtype=torch.float + ) -> str: + """Define stack-allocated buffer""" + sizes = parse_expr_with_index_symbols(sizes) + buf = ir.Buffer( + name=name, layout=ir.FixedLayout(torch.device("cpu"), dtype, sizes) + ) + self.local_buffers[name] = buf + ctype = f"{DTYPE_TO_CPP[dtype]}" + numel = f"{cexpr_index(buf.get_numel())}" + return f"alignas(64) {ctype} _{name}[{numel}]; {ctype}* {name} = _{name};" + + def reinit_buffer_if_null(self, name): + """Reinit the previously defined local buffer if it is null""" + assert name in self.local_buffers + buf = self.local_buffers[name] + ctype = f"{DTYPE_TO_CPP[buf.layout.dtype]}" + numel = f"{cexpr_index(buf.get_numel())}" + return f"if (_{name} == nullptr) {{ _{name} = std::make_unique<{ctype}[]>({numel}); {name} = _{name}.get(); }}" + + def release_buffer(self, name): + """Codegen the code to release the ownership of a local buffer to others""" + assert name in self.local_buffers + return f"_{name}.release()" + + def store_pointwise_nodes( + self, + dst: ir.Buffer, + nodes: list[ir.IRNode], + offsets: Optional[list[sympy.Expr]] = None, + reindexers: Optional[list[Optional[Callable[[list[Any]], list[Any]]]]] = None, + ) -> str: + var_sizes = (tuple(dst.get_size()), ()) + var_ranges = { + sympy_index_symbol_with_prefix(SymT.INDEX, i): sz + for i, sz in enumerate(var_sizes[0]) + } + if not offsets: + offsets = [sympy.S.Zero] * len(var_sizes[0]) + if not reindexers: + reindexers = [None] * len(nodes) + assert len(offsets) == len(var_sizes[0]) + output_index = dst.get_layout().make_indexer()([*var_ranges.keys()]) + kernel_group = KernelGroup() + kernel_group.args = self.args + cpp_kernel_proxy = CppKernelProxy(kernel_group) + bodies = [] + var_sizes_list = [] + for i, node in enumerate(nodes): + output_name = node.get_name() if i < len(nodes) - 1 else dst.get_name() + node = node.data if isinstance(node, ir.ComputedBuffer) else node + assert isinstance(node, ir.Pointwise), node + + def fn(*args): + assert len(args) == 2 + assert len(args[0]) == len(var_sizes[0]) + assert len(args[1]) == 0 + new_args = [arg + offset for arg, offset in zip(args[0], offsets)] # type: ignore[arg-type] + if reindexers[i] is not None: + new_args = reindexers[i](new_args) # type: ignore[misc] + V.ops.store( + output_name, + output_index, + node.make_loader()(new_args).value, + ) + + body = LoopBody( + fn, + (list(var_ranges.keys()), ()), + var_ranges, + list(var_ranges.keys()), + tuple(), + ) + bodies.append(body) + var_sizes_list.append(var_sizes) + + cpp_kernel_proxy.codegen_loop_bodies(bodies, var_sizes_list) + + def max_parallel_depth(): + return ParallelDepth(parallel_depth=0, start_depth=0) + + # This loop is not parallelized since it is not the outermost loop. + with patch.object( + cpp_kernel_proxy.loop_nest, "max_parallel_depth", max_parallel_depth + ): + kernel_group.finalize_kernel(cpp_kernel_proxy, []) + return kernel_group.loops_code.getvalue() + + def store_grouped_gemm_pointwise_nodes( + self, + dst: tuple[ir.Buffer], + nodes: list[ir.IRNode], + offsets: list[sympy.Expr], + reindexers: list[Optional[Callable[[list[Any]], list[Any]]]], + output_names: list[str], + ) -> str: + ref_dst = dst[0] + var_sizes = (tuple(ref_dst.get_size()), ()) + var_ranges = { + sympy_index_symbol_with_prefix(SymT.INDEX, i): sz + for i, sz in enumerate(var_sizes[0]) + } + assert offsets, "offsets should be set outside" + assert all(len(offset) == len(var_sizes[0]) for offset in offsets) + output_index = ref_dst.get_layout().make_indexer()([*var_ranges.keys()]) + kernel_group = KernelGroup() + kernel_group.args = self.args + cpp_kernel_proxy = CppKernelProxy(kernel_group) + bodies = [] + var_sizes_list = [] + for i, node in enumerate(nodes): + output_name = output_names[i] + node = node.data if isinstance(node, ir.ComputedBuffer) else node + assert isinstance(node, ir.Pointwise), node + + def fn(*args): + assert len(args) == 2 + assert len(args[0]) == len(var_sizes[0]) + assert len(args[1]) == 0 + new_args = [arg + offset for arg, offset in zip(args[0], offsets[i])] # type: ignore[arg-type] + if reindexers[i] is not None: + new_args = reindexers[i](new_args) # type: ignore[misc] + V.ops.store( + output_name, + output_index, + node.make_loader()(new_args).value, + ) + + body = LoopBody( + fn, + (list(var_ranges.keys()), ()), + var_ranges, + list(var_ranges.keys()), + tuple(), + ) + bodies.append(body) + var_sizes_list.append(var_sizes) + + cpp_kernel_proxy.codegen_loop_bodies(bodies, var_sizes_list) + + def max_parallel_depth(): + return ParallelDepth(parallel_depth=0, start_depth=0) + + # This loop is not parallelized since it is not the outermost loop. + with patch.object( + cpp_kernel_proxy.loop_nest, "max_parallel_depth", max_parallel_depth + ): + kernel_group.finalize_kernel(cpp_kernel_proxy, []) + return kernel_group.loops_code.getvalue() + + def store_output( + self, + dst: ir.Buffer, + src: ir.Buffer, + orig_src: Optional[ir.Buffer] = None, + epilogue_nodes: Optional[list[ir.IRNode]] = None, + offsets: Optional[list[Any]] = None, + reindexers: Optional[list[Optional[Callable[[list[Any]], list[Any]]]]] = None, + ): + """ + Store the `src` buffer to the `dst` buffer. The size of `src` and `dst` should match. + If `epilogue_nodes` is provided, the `src` buffer is firstly computed with the epilogues + before stored to `dst`. The `epilogues_nodes` are all pointwise. + + Notes: + 1. `src` and `dst` buffer could be the same buffer in which case we are doing in-place compute + and stores. In case `epilogue_nodes` are not provided, we do nothing. + 2. The `epilogue_nodes`, if exist, have computations on `src` before storing to `dst` but since + they come form the original Inductor IR, they might need to be adjusted before working with + `src` and `dst` as outlined below: + a) `src` or `dst` buffer could be a sub-slice of the ranges the `epilogue_nodes`work on. + In this case, the `offsets` could be provided to adjust the indices passed to + `epilogue_nodes` during codegen and the data ranges are also configured according to + the sizes of `src` and `dst`. + b) `dst` might be indexed in a different way as the `epilogue_nodes`, hence a `reindexer` is + needed on the indices to `epilogue_nodes` to match the indexing of `dst`. + c) If `src` is local, we need to add a local buffer for it and localize the `orig_src` buffer + in `epilogue_nodes` with `src`. + """ + assert isinstance(dst, (ir.Buffer, ir.ReinterpretView)) + assert dst.get_size() == src.get_size(), f"{dst=}, {src=}" + if offsets: + offsets = parse_expr_with_index_symbols(offsets) + if epilogue_nodes: + with LocalBufferContext(self.args) as scope: + assert orig_src is not None + if orig_src.get_name() != src.get_name(): + scope.add_local_buffer( + src, + [ + orig_src, + ], + ) + epilogue_nodes = scope.localize_nodes(epilogue_nodes) + return self.store_pointwise_nodes( + # pyrefly: ignore [bad-argument-type] + dst, + epilogue_nodes, # type: ignore[arg-type] + offsets, + reindexers, + ) + else: + if dst.get_name() != src.get_name(): + # src is local + copy = L.copy(dst, src).data.data + with LocalBufferContext(self.args) as scope: + scope.add_local_buffer(src) + # pyrefly: ignore [bad-argument-type] + return self.store_pointwise_nodes(dst, [copy]) + else: + assert dst.layout == src.layout, f"{dst=}, {src=}" + return "" + + def store_outputs( + self, + dst: tuple[ir.Buffer], + src: tuple[ir.IRNode], + orig_src: Optional[tuple[ir.IRNode]] = None, + epilogue_nodes: Optional[list[ir.IRNode]] = None, + offsets: Optional[list[Any]] = None, + reindexers: Optional[list[Optional[Callable[[list[Any]], list[Any]]]]] = None, + multi_output_buffers: Optional[tuple[ir.MultiOutput, ...]] = None, + ): + assert isinstance(dst, Iterable) + assert all(_dst.get_size() == _src.get_size() for _src, _dst in zip(src, dst)) + if offsets: + offsets = parse_expr_with_index_symbols(offsets) + gemm_num = len(src) + final_offsets = [] + output_names = [] + if epilogue_nodes: + if not reindexers: + reindexers = [None] * len(epilogue_nodes) + with LocalBufferContext(self.args) as scope: + assert orig_src is not None + localize_epilogue_nodes = [] + all_read_names = [] + for epilogue in epilogue_nodes: + all_read_names.extend(list(epilogue.get_read_names())) + localize_epilogue_nodes.extend(scope.localize_nodes(epilogue_nodes)) + final_offsets.extend([offsets] * len(localize_epilogue_nodes)) + output_names.extend( + [node.get_name() for node in localize_epilogue_nodes] + ) + for gemm_idx in range(gemm_num): + if orig_src[gemm_idx].get_name() != src[gemm_idx].get_name(): + if orig_src[gemm_idx].get_name() in all_read_names or ( + multi_output_buffers + and multi_output_buffers[gemm_idx].get_name() + in all_read_names + ): + # If any of the Epilogue nodes use this GEMM output, let's localize the GEMM output + global_buffers = [orig_src[gemm_idx]] + if ( + multi_output_buffers + and multi_output_buffers[gemm_idx].get_name() + in all_read_names + and orig_src[gemm_idx].get_name() not in all_read_names + ): + # Epilogue might directly read the MultiOutput, Locallize MultiOutput to the local Buffer + # if this MultiOutput has not been stored by in-template epilogue + # otherwise, use the cse store cache if it will be stored before used + global_buffers.append(multi_output_buffers[gemm_idx]) + scope.add_local_buffer( + src[gemm_idx], + global_buffers, + ) + else: + scope.add_local_buffer(src[gemm_idx]) + localize_epilogue_nodes.extend( + [L.copy(dst[gemm_idx], src[gemm_idx]).data.data] + ) + reindexers.append(None) + output_names.append(dst[gemm_idx].get_name()) + final_offsets.append( + [sympy.S.Zero] * len(dst[gemm_idx].get_size()) + ) + res = self.store_grouped_gemm_pointwise_nodes( + dst, + localize_epilogue_nodes, + final_offsets, + reindexers, + output_names=output_names, + ) + for gemm_idx in range(gemm_num): + if ( + multi_output_buffers + and multi_output_buffers[gemm_idx].get_name() in all_read_names + ): + # If the MultiOutput is used in the Epilogue, let's remove it from args + multi_output_name = multi_output_buffers[gemm_idx].get_name() + if ( + multi_output_name in self.args.output_buffers + and self.args.output_buffers[multi_output_name] + is not REMOVED + ): + self.remove_buffer(multi_output_name) + return res + else: + if dst[0].get_name() != src[0].get_name(): + copy_list = [] + with LocalBufferContext(self.args) as scope: + for _src, _dst in zip(src, dst): + copy_list.extend([L.copy(_dst, _src).data.data]) + scope.add_local_buffer(_src) + output_names.append(_dst.get_name()) + final_offsets.append([sympy.S.Zero] * len(_dst.get_size())) + reindexers = [None] * len(copy_list) + return self.store_grouped_gemm_pointwise_nodes( + dst, + nodes=copy_list, + offsets=final_offsets, + reindexers=reindexers, + output_names=output_names, + ) + else: + assert all( + _src.get_name() == _dst.get_name() for _src, _dst in zip(src, dst) + ) + assert all( + _src.get_layout() == _dst.get_layout() + for _src, _dst in zip(src, dst) + ) + return "" + + def check_bounds(self, expr, size, lower, upper): + # CppTemplateKernel does not need codegen related operations + return + + +class CppTemplateCaller(ir.ChoiceCaller): + """ + CppTemplateCaller + + This class represents a caller for CPP template kernels. It is a subclass of ir.ChoiceCaller. + Attributes: + name (str): The name of the caller. + category (str): The category of the caller. + bmreq (CppBenchmarkRequest): The benchmark request for the caller. + template_buffer (ir.CppTemplateBuffer): The template buffer for the caller. + """ + + def __init__( + self, + name: str, + category: str, + input_nodes: list[ir.Buffer], + layout: ir.Layout, + make_kernel_render: Callable[ + [ + ir.CppTemplateBuffer, + bool, + Optional[list[ir.IRNode]], + ], + str, + ], + bmreq: CppBenchmarkRequest, + template: "CppTemplate", # type: ignore[name-defined] # noqa: F821 + info_kwargs: Optional[ + dict[str, Union[ir.PrimitiveInfoType, list[ir.PrimitiveInfoType]]] + ] = None, + ): + super().__init__(name, input_nodes, layout, description="") + self.category = category + self.make_kernel_render = make_kernel_render + self.bmreq = bmreq + self.template = template + self.info_kwargs = info_kwargs + + def precompile(self) -> None: + assert self.bmreq is not None + self.bmreq.precompile() + + def benchmark(self, *args, out) -> float: + assert self.bmreq is not None + if config.profile_bandwidth_with_do_bench_using_profiling: + algo = self.bmreq.make_run_fn(*args, out=out) + return do_bench_using_profiling(algo) + return self.bmreq.benchmark(*args, out=out) + + def hash_key(self) -> str: + return "-".join( + [ + self.category, + self.bmreq.hash_key, + ] + ) + + def info_dict( + self, + ) -> dict[str, Union[ir.PrimitiveInfoType, list[ir.PrimitiveInfoType]]]: + return {"backend": "CPP", "op_type": "unknown"} + + def output_node(self) -> Union[ir.TensorBox, ir.ShapeAsConstantBuffer]: + return ir.TensorBox.create( + ir.CppTemplateBuffer( + layout=self.layout, + inputs=self.input_nodes, + make_kernel_render=self.make_kernel_render, + template=self.template, + choice=self, + ) + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..ef2bcede213b8f90e66ae18e40e9e18a5e24652e --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_utils.py @@ -0,0 +1,787 @@ +# mypy: allow-untyped-defs +import contextlib +import dataclasses +import functools +import math +import sys +from collections import namedtuple +from collections.abc import Callable, Sequence +from typing import Any, Optional +from unittest.mock import patch + +import sympy + +import torch +from torch._prims_common import is_integer_dtype +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.printers import CppPrinter as _CppPrinter +from torch.utils._sympy.symbol import symbol_is_type, SymT +from torch.utils._sympy.value_ranges import ValueRanges + +from .. import ir +from ..dependencies import Dep +from ..loop_body import LoopBody +from ..scheduler import BaseSchedulerNode, SchedulerBuffer +from ..shape_propagation import BlockShapeType +from ..utils import IndentedBuffer, sympy_index_symbol_with_prefix, sympy_subs +from ..virtualized import ops, OpsValue, V +from .common import CSEVariable, Kernel, KernelArgs, OptimizationContext + + +DTYPE_TO_CPP = { + torch.float32: "float", + torch.float64: "double", + torch.float16: "at::Half", + torch.int64: "int64_t", + torch.int32: "int32_t", + torch.int16: "int16_t", + torch.int8: "int8_t", + torch.uint64: "uint64_t", + torch.uint32: "uint32_t", + torch.uint16: "uint16_t", + torch.uint8: "uint8_t", + torch.bool: "bool", + torch.bfloat16: "at::BFloat16", + torch.complex32: "at::complex", + torch.complex64: "at::complex", + torch.complex128: "at::complex", + torch.float8_e4m3fn: "at::Float8_e4m3fn", + torch.float8_e5m2: "at::Float8_e5m2", + torch.float8_e4m3fnuz: "at::Float8_e4m3fnuz", + torch.float8_e5m2fnuz: "at::Float8_e5m2fnuz", +} + +DTYPE_TO_ATEN = { + torch.float32: "at::kFloat", + torch.float64: "at::kDouble", + torch.float16: "at::kHalf", + torch.int64: "at::kLong", + torch.int32: "at::kInt", + torch.int16: "at::kShort", + torch.int8: "at::kChar", + torch.uint64: "at::kUInt64", + torch.uint32: "at::kUInt32", + torch.uint16: "at::kUInt16", + torch.uint8: "at::kByte", + torch.uint32: "at::kUInt32", + torch.uint64: "at::kUInt64", + torch.bool: "at::kBool", + torch.bfloat16: "at::kBFloat16", + torch.complex32: "at::kComplexHalf", + torch.complex64: "at::kComplexFloat", + torch.complex128: "at::kComplexDouble", + torch.float8_e4m3fn: "at::kFloat8_e4m3fn", + torch.float8_e5m2: "at::kFloat8_e5m2", + torch.float8_e4m3fnuz: "at::kFloat8_e4m3fnuz", + torch.float8_e5m2fnuz: "at::kFloat8_e5m2fnuz", +} + +DEVICE_TO_ATEN = { + "meta": "at::kMeta", + "cpu": "at::kCPU", + "cuda": "at::kCUDA", + "xpu": "at::kXPU", + "mps": "at::kMPS", +} + +LAYOUT_TO_ATEN = { + torch.strided: "at::kStrided", + torch._mkldnn: "at::kMkldnn", # type: ignore[attr-defined] +} + +# matches c10/core/DeviceType.h +DEVICE_TO_INT = {"cpu": 0, "cuda": 1} + +_IS_WINDOWS = sys.platform == "win32" + +INDEX_TYPE = "int64_t" + +GemmBlocking = namedtuple("GemmBlocking", ["block_m", "block_n", "block_k"]) + + +def get_promote_dtype(args): + return ( + functools.reduce( + torch.promote_types, # type: ignore[arg-type] + [n.dtype for n in args if isinstance(n, CppCSEVariable)], + ) + if all(n.dtype is not None for n in args if isinstance(n, CppCSEVariable)) + else None # not enough info to calculate the promote dtype + ) + + +def promote_args(new_args): + def promote_arg(arg, promote_type): + if ( + isinstance(arg, CppCSEVariable) + and arg.dtype + and promote_type + and arg.dtype != promote_type + ): + arg = ops.to_dtype(arg, promote_type) + arg = arg.value if isinstance(arg, OpsValue) else arg + arg.dtype = promote_type + return arg + + promote_type = get_promote_dtype(new_args) + promote_fn = functools.partial( + promote_arg, + promote_type=promote_type, + ) + if ( + all( + new_arg.dtype is not None + for new_arg in new_args + if isinstance(new_arg, CppCSEVariable) + ) + and promote_type + ): + new_args = list(map(promote_fn, new_args)) + return new_args + + +class CppCSEVariable(CSEVariable): + def __init__( + self, + name, + bounds: ValueRanges[Any], + dtype: Optional[torch.dtype] = None, + shape: BlockShapeType = None, + ) -> None: + super().__init__(name, bounds, dtype, shape=shape) + self.is_vec = False + self.dependent_itervars = OrderedSet[sympy.Symbol]() + + def __repr__(self) -> str: + return ( + f"CppCSEVariable(name: {self.name}, bounds: {self.bounds}, is_vec: {self.is_vec}, dtype: {self.dtype}, " + f"dependent_itervars: {self.dependent_itervars})" + ) + + def update_on_args(self, name, args, kwargs): + if name == "load": + # args[2] is index + self._set_dependent_itervars(args[2]) + else: + # propagate relevant itervars and is_vec from args + self.dependent_itervars.update( + *[ + arg.dependent_itervars + for arg in args + if isinstance(arg, CppCSEVariable) + ] + ) + if name == "index_expr": + self._set_dependent_itervars(args[0]) + if any(arg.is_vec for arg in args if isinstance(arg, CppCSEVariable)): + self.is_vec = True + + def _set_dependent_itervars(self, index: sympy.Expr): + """ + Set the relevant itervars for this variable based on the `index` expression. + This includes the itervars directly used in the `index` as well as relevant itervars + of other cse variables used in the `index`. + """ + for s in index.free_symbols: + if s in V.kernel.itervars: + self.dependent_itervars.add(s) # type: ignore[arg-type] + elif s.name in V.kernel.cse.varname_map: # type: ignore[attr-defined] + self.dependent_itervars.update( + V.kernel.cse.varname_map[s.name].dependent_itervars # type: ignore[attr-defined] + ) + + def depends_on(self, itervar: sympy.Symbol): + return itervar in self.dependent_itervars + + +class CppPrinter(_CppPrinter): + def doprint(self, expr, *, simplify: bool = True, p=True): + # TODO: why are people passing strings to the printer here :think: + if simplify and isinstance(expr, sympy.Expr) and hasattr(V.graph, "sizevars"): + expr = V.graph.sizevars.simplify(expr) + return super().doprint(expr) + + def parenthesize(self, item: sympy.Expr, level: int, strict: bool = False) -> str: + if isinstance(item, sympy.Mod): + # use parenthesis to enforce precedence. + # in sympy 1.13.3, -2*Mod(x,y) becomes -2*x%y, which is wrong. + return f"({self._print(item)})" + else: + return super().parenthesize(item, level, strict) + + +# A function to print, useful for printing sympy symbols. +cexpr = CppPrinter().doprint + + +def cexpr_index(index): + return f"static_cast<{INDEX_TYPE}>({cexpr(index)})" + + +def value_to_cpp(value, cpp_type): + if value == float("-inf"): + return f"-std::numeric_limits<{cpp_type}>::infinity()" + elif value == float("inf"): + return f"std::numeric_limits<{cpp_type}>::infinity()" + elif isinstance(value, bool): + return f"static_cast<{cpp_type}>({str(value).lower()})" + elif math.isnan(value): + return f"std::numeric_limits<{cpp_type}>::quiet_NaN()" + else: + return f"static_cast<{cpp_type}>({repr(value)})" + + +def rewrite_index_for_function( + localize_buffer_handler: "LocalizeBufferHandler", + index: sympy.Expr, + global_buf_name: str, +): + # Local buffer at the inner dimensions + snode = V.graph.scheduler.name_to_buf[global_buf_name].defining_op + assert snode is not None + local_buf = localize_buffer_handler.global_to_local[global_buf_name] + scheduler_nodes = snode.get_nodes() + _, (group, reduction_group) = max( + scheduler_nodes, key=lambda x: int(x.is_reduction()) + ).group + call_ranges = tuple(group) + tuple(reduction_group) + indices_to_keep = [ + f"x{len(call_ranges) - (idx + 1)}" + for idx in range(len(local_buf.get_layout().size)) + ] + sorted_symbols = sorted(index.free_symbols, key=lambda s: s.name) # type: ignore[attr-defined] + replacements = {} + for x in sorted_symbols: + if x.name.startswith("x") and x.name not in indices_to_keep: # type: ignore[attr-defined] + # Only keep index used by local buffer + replacements[x] = sympy.core.numbers.Zero() + index = sympy_subs(index, replacements) # type: ignore[arg-type] + return index + + +def rewrite_index_for_nodes( + localize_buffer_handler: "LocalizeBufferHandler", + index: sympy.Expr, + global_buf_name: str, +): + used_vars = OrderedSet( + s for s in index.free_symbols if symbol_is_type(s, SymT.INDEX) + ) + index_vars = [] + local_buf = localize_buffer_handler.global_to_local[global_buf_name] + for i in range(len(local_buf.get_size())): + var = sympy_index_symbol_with_prefix(SymT.INDEX, i) + index_vars.append(var if var in used_vars else 0) + index = local_buf.get_layout().make_indexer()(index_vars) + return index + + +class LocalizeBufferHandler(V.WrapperHandler): # type: ignore[name-defined] + def __init__( + self, + inner, + global_to_local: dict[str, ir.Buffer], + rewrite_index: Callable[["LocalizeBufferHandler", sympy.Expr, str], sympy.Expr], + ) -> None: + super().__init__(inner) + self.global_to_local = global_to_local + self.rewrite_index = rewrite_index + + def localize(self, name: str, index: sympy.Expr): + if self.global_to_local and name in self.global_to_local: + assert self.rewrite_index is not None + index = self.rewrite_index(self, index, name) + name = self.global_to_local[name].get_name() + return name, index + + def load(self, name: str, index: sympy.Expr): + return self._inner.load(*self.localize(name, index)) + + def store(self, name, index, value, mode=None): + local_buffer_name, local_buffer_index = self.localize(name, index) + res = self._inner.store(local_buffer_name, local_buffer_index, value, mode) + if ( + self.global_to_local + and name in self.global_to_local + and isinstance(V.kernel, Kernel) + ): + # Remove name of local buffer from Kernel.store_buffer_names + # local_buffer_name is added to Kernel.store_buffer_names in Kernel.CSEProxy.store. + V.kernel.store_buffer_names.discard(local_buffer_name) + return res + + def store_reduction(self, name, index, value): + # pyrefly: ignore [bad-argument-count] + return self._inner.store_reduction(*self.localize(name, index), value) + + +class LocalBufferContext: + """ + This class creates a context that helps to generate code involving Inductor IR with + function local buffers. These buffers are constructed during the codegen process and + are used to store intermediate results such as local accumulators. We do not want to + add them to `V.graph` since they are not global and we do not want to add them as + function arguments either. So we patch the codegen processes under this scope to support + these buffers without exposure to the outside world. + """ + + def __init__(self, kernel_args: KernelArgs) -> None: + self.kernel_args = kernel_args + self.exit_stack = contextlib.ExitStack() + # map local buffer name to local buffer + self.local_buffers: dict[str, ir.Buffer] = {} + # map global buffer name to global buffer + self.global_buffers: dict[str, ir.Buffer] = {} + # map global buffer name to local buffer + self.global_to_local: dict[str, ir.Buffer] = {} + # record the global buffers that are removed by this LocalBufferContext + self.removed_buffers: OrderedSet[str] = OrderedSet() + + def __enter__(self): + self.exit_stack.__enter__() + original_get_dtype = V.graph.get_dtype + + def get_dtype(name): + if name in self.local_buffers: + return self.local_buffers[name].get_dtype() + return original_get_dtype(name) + + self.exit_stack.enter_context(patch.object(V.graph, "get_dtype", get_dtype)) + + original_input = self.kernel_args.input + + def input(name): + if name in self.local_buffers: + return name + return original_input(name) + + self.exit_stack.enter_context(patch.object(self.kernel_args, "input", input)) + + original_output = self.kernel_args.output + + def output(name): + if name in self.local_buffers: + return name + return original_output(name) + + self.exit_stack.enter_context(patch.object(self.kernel_args, "output", output)) + + # Set current LocalBufferContext into V + self.exit_stack.enter_context(V.set_local_buffer_context(self)) + + return self + + def __exit__(self, exc_type, exc_val, exc_tb): + self.local_buffers.clear() + self.exit_stack.__exit__(exc_type, exc_val, exc_tb) + + def add_local_buffer( + self, local_buffer: ir.Buffer, global_buffers: Optional[list[ir.Buffer]] = None + ): + assert local_buffer.get_name() not in self.local_buffers + self.local_buffers[local_buffer.get_name()] = local_buffer + if global_buffers: + for global_buffer in global_buffers: + global_buffer_name = global_buffer.get_name() + assert ( + global_buffer_name not in self.global_buffers + and global_buffer_name not in self.global_to_local + ) + self.global_buffers[global_buffer_name] = global_buffer + self.global_to_local[global_buffer_name] = local_buffer + if global_buffer_name not in V.graph.removed_buffers: + # Record the global buffers that are removed by this LocalBufferContext + # since which may need to restore. Refer to issue: + # https://github.com/pytorch/pytorch/issues/144186 + self.removed_buffers.add(global_buffer_name) + V.graph.removed_buffers.add(global_buffer_name) + + def localize_function( + self, + fn: Callable[..., Any], + rewrite_index: Callable[ + ["LocalizeBufferHandler", sympy.Expr, str], sympy.Expr + ] = rewrite_index_for_function, + ): + def inner(*args, **kwargs): + with V.set_ops_handler( + LocalizeBufferHandler( + V.get_ops_handler(), + global_to_local=self.global_to_local, + rewrite_index=rewrite_index, + ) + ): + return fn(*args, **kwargs) + + return inner + + def localize_nodes( + self, + nodes: list[ir.IRNode], + rewrite_index: Callable[ + ["LocalizeBufferHandler", sympy.Expr, str], sympy.Expr + ] = rewrite_index_for_nodes, + ) -> list[ir.IRNode]: + """ + Given `local_buf` and `global_buf` registered in current `LocalBufferContext` + though the method of `add_local_buffer`, localizes the `global_buf` to `local_buf` + for the given `nodes` and returns a new list of IR nodes that work on `local_buf` + instead of `global_buf`, i.e., all the loads and stores are redirected to + `local_buf`. This helps the fused loops to work on smaller-sized local buffers + for better data locality. + + The data access of `local_buf` is assumed to be contiguous with the + same order as the `global_buf`. + """ + assert len(nodes) > 0 + + def wrap_inner_fn_for_node(node: ir.IRNode): + loops = node.data if isinstance(node, ir.ComputedBuffer) else node + assert isinstance(loops, ir.Loops) + new_inner_fn = self.localize_function( + loops.inner_fn, + rewrite_index, + ) + + new_loops = dataclasses.replace(loops, inner_fn=new_inner_fn) + if isinstance(node, ir.ComputedBuffer): + new_node = ir.ComputedBuffer( + name=node.get_name(), layout=node.get_layout(), data=new_loops + ) + else: + new_node = new_loops # type: ignore[assignment] + + return new_node + + return [wrap_inner_fn_for_node(node) for node in nodes] + + +def unify_mask_base_type( + buffer: IndentedBuffer, + vars: tuple[CSEVariable, ...], + dtype=torch.float, +): + """ + Given list of cse variables, + Cast each to new mask base dtype and return casted cse variable. + """ + new_vars = ( + V.kernel.cse.generate( + buffer, + f"{V.kernel._get_mask_cast(var, dtype)}", + ) + for var in vars + ) + return new_vars + + +def may_unify_binary_op_mask_type(a, b): + """ + Given two cse variables, when dtype is bool, unify them to the same mask dtype and return casted cse variable. + """ + if a.dtype == torch.bool: + assert b.dtype == torch.bool + mask_dtype = torch.int32 + return unify_mask_base_type(V.kernel.compute, (a, b), mask_dtype) + return a, b + + +def codegen_rand(offset, code, rand_function, dst_dtype=torch.float32): + assert is_integer_dtype(offset.dtype) + code.writeline("[&]()") + with code.indent(): + code.writeline( + f"{DTYPE_TO_CPP[offset.dtype]} offset[{V.kernel.tiling_factor}];" + ) + code.writeline(f"{DTYPE_TO_CPP[dst_dtype]} result[{V.kernel.tiling_factor}];") + code.writeline(f"{offset}.store(offset);") + code.writeline( + f"for( {DTYPE_TO_CPP[offset.dtype]} offset_idx = 0; offset_idx < {V.kernel.tiling_factor}; offset_idx++ )" + ) + with code.indent(): + code.writeline(rand_function) + num_vectors = V.kernel._get_num_vectors(dtype=dst_dtype) + if num_vectors == 1: + code.writeline( + f"return at::vec::Vectorized<{DTYPE_TO_CPP[dst_dtype]}>::loadu(result);" + ) + else: + code.writeline( + f"return at::vec::VectorizedN<{DTYPE_TO_CPP[dst_dtype]}, {num_vectors}>::loadu(result);" + ) + code.writeline("()") + return code + + +def get_gemm_template_output_and_compute_dtype(input_dtype): + if input_dtype in [torch.uint8, torch.int8]: + return (torch.int32, torch.int32) + else: + return (torch.float32, torch.float32) + + +def create_epilogue_with_attr(input_buffer, attr, **kwargs): + input_loader = input_buffer.make_loader() + dtype = input_buffer.get_dtype() + if attr == "relu": + + def inner_fn(index): + input = input_loader(index) + zero = ops.constant(0, dtype) + return ops.maximum(input, zero) + + elif attr == "gelu": + assert "algorithm" in kwargs + if kwargs["algorithm"] == "none": + + def inner_fn(index): + input = input_loader(index) + if dtype != torch.float: + input = ops.to_dtype(input, torch.float) + half = ops.constant(0.5, torch.float) + one = ops.constant(1.0, torch.float) + const = ops.constant(0.7071067811865476, torch.float) + result = input * half * (ops.erf(input * const) + one) + if dtype != torch.float: + result = ops.to_dtype(result, dtype) + return result + + else: + assert kwargs["algorithm"] == "tanh" + + def inner_fn(index): + input = input_loader(index) + if dtype != torch.float: + input = ops.to_dtype(input, torch.float) + half = ops.constant(0.5, torch.float) + one = ops.constant(1.0, torch.float) + const1 = ops.constant(0.7978845608028654, torch.float) + const2 = ops.constant(0.044715, torch.float) + result = ( + half + * input + * ( + one + + ops.tanh(const1 * (input + const2 * input * input * input)) + ) + ) + if dtype != torch.float: + result = ops.to_dtype(result, dtype) + return result + + elif attr == "swish": + + def inner_fn(index): + input = input_loader(index) + result = input * ops.sigmoid(input) + return result + + elif attr == "sigmoid": + + def inner_fn(index): + return ops.sigmoid(input_loader(index)) + + elif attr == "tanh": + + def inner_fn(index): + return ops.tanh(input_loader(index)) + + elif attr == "hardswish" or attr == "hardsigmoid": + + def hardsigmoid_float(input): + zero = ops.constant(0, torch.float) + six = ops.constant(6, torch.float) + three = ops.constant(3, torch.float) + one_over_six = ops.constant(0.16666666666666666, torch.float) + max = ops.maximum(input + three, zero) + min = ops.minimum(max, six) + return min * one_over_six + + def inner_fn(index): + input = input_loader(index) + if dtype != torch.float: + input = ops.to_dtype(input, torch.float) + result = hardsigmoid_float(input) + if attr == "hardswish": + result = input * result + if dtype != torch.float: + result = ops.to_dtype(result, dtype) + return result + + elif attr == "leaky_relu": + assert "scalars" in kwargs + assert len(kwargs["scalars"]) == 1 + negative_slope = kwargs["scalars"][0] + + def inner_fn(index): + input = input_loader(index) + if dtype != torch.float: + input = ops.to_dtype(input, torch.float) + zero = ops.constant(0, torch.float) + result = ops.where( + input > zero, input, input * ops.constant(negative_slope, torch.float) + ) + if dtype != torch.float: + result = ops.to_dtype(result, dtype) + return result + + elif attr == "hardtanh": + assert "scalars" in kwargs + assert len(kwargs["scalars"]) == 2 + min_value = kwargs["scalars"][0] + max_value = kwargs["scalars"][1] + + def inner_fn(index): + input = input_loader(index) + if dtype != torch.float: + input = ops.to_dtype(input, torch.float) + result = ops.minimum( + ops.maximum(input, ops.constant(min_value, torch.float)), + ops.constant(max_value, torch.float), + ) + if dtype != torch.float: + result = ops.to_dtype(result, dtype) + return result + + elif attr in ["add", "sub", "mul"]: + assert "other" in kwargs + other = kwargs["other"] + num_input_dims = len(input_buffer.get_size()) + num_other_dims = len(other.get_size()) + dims_diff = num_input_dims - num_other_dims + other_loader = other.make_loader() + + def inner_fn(index): + op = getattr(ops, attr) + if dims_diff != 0: + return op(input_loader(index), other_loader(index[dims_diff:])) + else: + return op(input_loader(index), other_loader(index)) + + elif attr == "bias_add": + assert "other" in kwargs + assert "beta" in kwargs + assert "dtype" in kwargs + beta = kwargs["beta"] + other = kwargs["other"] + dtype = kwargs["dtype"] + bias_loader = other.make_loader() + + def inner_fn(index): + bias = bias_loader(index) + input = input_loader(index) + if beta != 1: + result = ops.constant(beta, torch.float) * bias + input + else: + result = bias + input + return result + + else: + raise ValueError(f"Unsupported epilogue attribute: {attr}") + return ir.Pointwise( + device=input_buffer.get_device(), + dtype=dtype, + inner_fn=inner_fn, + ranges=input_buffer.get_size(), + ) + + +def _get_loop_body(fn_list): + if all(isinstance(fn, LoopBody) for fn in fn_list): + loop_bodies = fn_list + else: + if hasattr(fn_list[0], "original_fn"): + # For the case of local buffer, we wrap the fn with localize_function + assert all(hasattr(fn, "original_fn") for fn in fn_list) + assert all( + isinstance(fn.original_fn.args[0]._body, LoopBody) for fn in fn_list + ) + loop_bodies = [fn.original_fn.args[0]._body for fn in fn_list] + else: + assert all(isinstance(fn, functools.partial) for fn in fn_list) + assert all(isinstance(fn.args[0]._body, LoopBody) for fn in fn_list) + loop_bodies = [fn.args[0]._body for fn in fn_list] + assert loop_bodies is not None + return loop_bodies + + +def _get_dtype_from_loopbodies(loop_bodies): + dtypes = OrderedSet[torch.dtype]() + for loop_body in loop_bodies: + graphs = [loop_body.root_block.graph] + [ + body.graph for body in list(loop_body.subblocks.values()) + ] + for graph in graphs: + for node in graph.nodes: + if node.op != "call_method": + continue + dtypes.add(node.meta[OptimizationContext.key].dtype) + return dtypes + + +def template_fusion_with_epilogues_supported( + template: BaseSchedulerNode, epilogues: list[BaseSchedulerNode] +) -> tuple[bool, bool]: + def _get_indexes_of_template_buf_read( + epilogue_node: ir.Operation, template_buf_names: list[str] + ) -> list[sympy.Expr]: + return [ + read.index + for read in epilogue_node.get_reads() + if read.name in template_buf_names + ] + + def _check_supported_and_same_indexes( + index_of_template_buf_read: Sequence[sympy.Expr], + epilogue_writes: OrderedSet[Dep], + ) -> tuple[bool, bool]: + num_indexes = len(OrderedSet(index_of_template_buf_read)) + + if num_indexes > 1: + same_index = False + supported = False # Different read indexes not supported + elif num_indexes == 0: + same_index = True + supported = True # No reads, automatically supported + elif num_indexes == 1: + iotbr = index_of_template_buf_read[0] + same_index = all(write.index == iotbr for write in epilogue_writes) + # TODO: Add support of fusion when the read of template buffer and the write of epilogue output + # in the epilogue node don't have the same index and change supported to True + supported = same_index + else: + raise AssertionError("Should not reach here") + + return supported, same_index + + def _template_fusion_supported( + template_outputs: Sequence[SchedulerBuffer], epilogue_nodes: list[ir.Operation] + ) -> tuple[bool, bool]: + template_buf_names = [x.get_name() for x in template_outputs] + indexes_of_template_buf_reads = [ + _get_indexes_of_template_buf_read(epilogue_node, template_buf_names) + for epilogue_node in epilogue_nodes + ] + epilogue_nodes_writes = [ + epilogue_node.get_read_writes().writes for epilogue_node in epilogue_nodes + ] + + results = [ + _check_supported_and_same_indexes(reads, writes) + for reads, writes in zip( + indexes_of_template_buf_reads, epilogue_nodes_writes + ) + ] + supported, same_indexes = zip(*results) + return all(supported), all(same_indexes) + + assert template.is_template() + template_outputs = template.get_outputs() + + epilogue_nodes = [ + n.node + for epilogue in epilogues + for n in epilogue.get_nodes() + if n.node is not None + ] + return _template_fusion_supported(template_outputs, epilogue_nodes) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_wrapper_cpu.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_wrapper_cpu.py new file mode 100644 index 0000000000000000000000000000000000000000..16522d9832ec0e9e8ce7686fe5537e3c4a647410 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_wrapper_cpu.py @@ -0,0 +1,3010 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import ctypes +import functools +import math +import os +import sys +import textwrap +from itertools import chain, count +from typing import Any, Optional, Protocol, TYPE_CHECKING, Union + +import sympy + +import torch +import torch._higher_order_ops.torchbind +import torch._inductor.async_compile # noqa: F401 required to warm up AsyncCompile pools +import torch._ops +from torch._inductor.runtime.runtime_utils import dynamo_timed +from torch.fx.experimental.symbolic_shapes import ConvertIntKey, DivideByKey, SymTypes +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.symbol import symbol_is_type, SymT + +from .. import config, cpp_builder, ir +from ..ir import ExternKernel +from ..utils import _align, DeferredLineBase, LineContext, normalize_name +from ..virtualized import V +from .aoti_hipify_utils import maybe_hipify_code_wrapper +from .common import get_device_op_overrides, IndentedBuffer, Kernel +from .cpp_utils import cexpr, DEVICE_TO_ATEN, DEVICE_TO_INT, DTYPE_TO_ATEN, DTYPE_TO_CPP +from .wrapper import ( + codegen_reinterpret_view_helper, + EnterSubgraphLine, + ExitSubgraphLine, + PythonWrapperCodegen, + SymbolicCallArg, +) + + +if TYPE_CHECKING: + from collections.abc import Callable, Sequence + + from ..graph import GraphLowering + + # At most, the list nesting can go one layer deep. + _OUTPUT_ARGS_TYPE = list[Union[Optional[str], list[Optional[str]]]] + + from ..scheduler import BaseSchedulerNode + + +class HasWriteLine(Protocol): + def writeline(self, line: Union[LineContext, DeferredLineBase, str]) -> None: ... + + +class CppWrapperCpu(PythonWrapperCodegen): + """ + Generates cpp wrapper for running on CPU and calls cpp kernels + """ + + def __init__(self): + if not hasattr(self, "device"): + self.device = "cpu" + # must be initialized prior to calling super().__init__() + self.included_devices: OrderedSet[str] = OrderedSet() + self.model_class_name_suffix = ( + "" + if config.aot_inductor.dynamic_linkage + else config.aot_inductor.model_name_for_generated_files + ) + self.aoti_model_class_name = f"AOTInductorModel{self.model_class_name_suffix}" + + super().__init__() + + self.declare = "auto " + self.declare_maybe_reference = "decltype(auto) " + self.ending = ";" + self.comment = "//" + self.none_str = "nullptr" + self.supports_intermediate_hooks = False + self.kernel_callsite_id = count() + self.int_array_id = count() # for int array local variable declarations + self.declared_int_array_vars: OrderedSet[str] = OrderedSet() + self.tmp_tensor_id = count() # for tmp tensor local variable declarations + self.arg_var_id = count() + self.used_cached_devices: OrderedSet[str] = OrderedSet() + self.used_cached_dtypes: OrderedSet[str] = OrderedSet() + self.used_cached_layouts: OrderedSet[str] = OrderedSet() + self.used_cached_memory_formats: OrderedSet[str] = OrderedSet() + self.used_cond_predicate: OrderedSet[str] = OrderedSet() + self.cached_output_id = count() + self.scalar_to_tensor_id = count() + self.custom_op_wrapper_loaded = False + # For GEMM kernels that must be initialized and are resolved at linking. + self.initialized_kernels: dict[str, Kernel] = {} + self.device_codegen = get_device_op_overrides(self.device) + # only need to include each header once + self.include_extra_header = functools.lru_cache(None)( # type: ignore[method-assign] + self._include_extra_header + ) + self.codegen_int_array_var_cache = {} + + @staticmethod + def create( + is_subgraph: bool, + subgraph_name: Optional[str], + parent_wrapper: Optional[PythonWrapperCodegen], + partition_signatures: Optional[ir.GraphPartitionSignature] = None, + ): + # TODO - support subgraph codegen by lifting functions. Check the + # comment at CppWrapperCpu `codegen_subgraph` function. + return CppWrapperCpu() + + @staticmethod + def _generate_temporary_array_pointer( + c_type: str, elements: Sequence[str], *, force_mutable: bool = False + ) -> str: + """Get a pointer to an array that only exists for the duration of the C++ + statement it's used in.""" + # If the c_type is already a pointer, return a mutable pointer to the array. + # Otherwise, return a const pointer. In the C-shim API, pointer types are only + # const-qualified with respect to the underlying value, not any nested pointers. + # e.g. const double** is possible, but not const double* const*. This means + # that an array containing pointers must _already_ be properly const-qualified + # by the c_type, and not add additional const-ness. + # MSVC does not support implicitly converting a const iterator to a const pointer. + ptr_call = ( + "data()" + if force_mutable or c_type.endswith("*") or cpp_builder.is_msvc_cl() + else "cbegin()" + ) + return ( + f"std::array<{c_type}, {len(elements)}>{{{', '.join(elements)}}}.{ptr_call}" + ) + + def _generate_kernel_call_helper( + self, + kernel_name: str, + call_args, + *, + device=None, + triton=True, + arg_types=None, + raw_keys=None, + raw_args=None, + triton_meta=None, + graph_name="", + original_fxnode_name=None, + ): + """ + Generates kernel call code. + + triton: Defines whether the GPU backend uses Triton for codegen. + Otherwise it uses the CUDA language for codegen. + Only valid when cuda == True. + """ + assert arg_types is not None and len(call_args) == len(arg_types), ( + "Mismatch call_args and arg_types in generate_kernel_call:\n" + f"call_args: {call_args}\n" + f"arg_types: {arg_types}" + ) + new_args = [] + for idx, arg in enumerate(call_args): + if isinstance(arg_types[idx], str) and "*" in arg_types[idx]: + new_args.append(f"({arg_types[idx]})({arg}.data_ptr())") + else: + # arg is a scalar - ensure it's a string for C++ codegen + # With Triton support, arg might be a SymPy expression or other type + new_args.append(str(arg) if not isinstance(arg, str) else arg) + # debug printer related logic for cpp kernel type. + debug_printer_manager = V.graph.wrapper_code.debug_printer + debug_printer_manager.set_printer_args( + call_args, + kernel_name, + None, + None, + "cpp", + ) + with debug_printer_manager: + self.writeline(self.wrap_kernel_call(kernel_name, new_args)) + + def write_constant(self, name, hashed): + # include a hash so our code cache gives different constants different files + self.header.writeline(f"// {name} {hashed}") + + @staticmethod + def get_device_include_path(device: str) -> str: + if V.graph.aot_mode: + return f"#include " + return f"#include " + + def add_device_include(self, device: str) -> None: + if device in self.included_devices: + return + + self.included_devices.add(device) + + # Add the default header for this device, plus any C-shim extensions that are + # present. + self.header.splice(self.get_device_include_path(device)) + extend_aoti_c_shim_include = ( + f"torch/csrc/inductor/aoti_torch/generated/extend/c_shim_{self.device}.h" + ) + extend_aoti_c_shim_path = os.path.join( + os.path.dirname(torch.__file__), + "include", + extend_aoti_c_shim_include, + ) + if os.path.exists(extend_aoti_c_shim_path): + self.header.splice(f"#include <{extend_aoti_c_shim_include}>") + + def write_header(self): + if V.graph.is_const_graph: + # We do not write header for constant graph, it will be written by main module. + return + + if not V.graph.aot_mode: + self.header.splice( + """ + import torch + from torch._inductor.codecache import CppWrapperCodeCache + + cpp_wrapper_src = ( + r''' + """ + ) + + for device in V.graph.device_types: + if device != "meta": + self.add_device_include(device) + + if V.graph.aot_mode: + if config.aot_inductor.dynamic_linkage: + with open( + os.path.join( + os.path.dirname(__file__), "aoti_runtime", "interface.cpp" + ) + ) as f: + self.header.splice(f.read()) + else: + # we produce a separate model header for each model in static linkage + self.header.splice(f"""#include \"{self.model_class_name_suffix}.h\"""") + self.header.splice("\n") + + if config.cpp.enable_kernel_profile: + self.header.splice( + "#include " + ) + self.header.splice( + """ + namespace torch::aot_inductor { + thread_local KernelContext* tls_kernel_context = nullptr; + } + """ + ) + + def _include_extra_header(self, header: str): + # This is needed for cpp to python dtype conversion + self.header.splice(f"#include <{header}>") + + def mark_output_type(self): + # mark output type to unwrap tensor back to python scalar + from ..ir import ShapeAsConstantBuffer + + output_is_tensor = {} + for idx, x in enumerate(V.graph.graph_outputs): + if isinstance(x, ShapeAsConstantBuffer): + output_is_tensor[idx] = False + else: + output_is_tensor[idx] = True + + self.output_is_tensor = output_is_tensor + + def write_prefix(self): + if V.graph.is_const_graph: + # We do not write prefix for constant graph, it will be written by main module. + return + if config.aot_inductor.custom_ops_to_c_shims: + # custom_ops_to_c_shims contains declaration of custom ops with C shim. + # TODO: this could be auto-generated from a passed-in custom op schema + custom_c_shims = list( + chain(*config.aot_inductor.custom_ops_to_c_shims.values()) + ) + declarations = "\n".join( + [f"extern {textwrap.dedent(shim)};" for shim in custom_c_shims] + ) + self.prefix.splice( + f""" + extern "C" {{ + {declarations} + }} + """ + ) + if V.graph.aot_mode: + self.prefix.writeline("namespace torch::aot_inductor {") + + def write_input_output_info( + self, + info_kind: str, + idx: int, + name: str, + ): + self.prefix.writeline(f"""{info_kind}[{idx}].name = "{name}";""") + + def codegen_input_symbol_assignment( + self, + name: str, + value: ir.TensorBox, + bound_vars: OrderedSet[sympy.Symbol], + ): + code = self.prefix + + @functools.cache + def sizeof(name): + self.codegen_input_size_var_decl(code, name) + return f"{name}_size" + + @functools.cache + def strideof(name): + self.codegen_input_stride_var_decl(code, name) + return f"{name}_stride" + + def codegen_symbol( + sym_or_exp: Union[sympy.Symbol, sympy.Expr], + base_name: str, + name_fn: Callable[[str], str], + dim: int, + ): + if isinstance(sym_or_exp, sympy.Symbol): + if sym_or_exp in bound_vars: + return + code.writeline(f"int64_t {sym_or_exp} = {name_fn(base_name)}[{dim}];") + bound_vars.add(sym_or_exp) + elif isinstance(sym_or_exp, sympy.Expr): + undefined_symbols = [ + sym for sym in sym_or_exp.free_symbols if sym not in bound_vars + ] + if len(undefined_symbols) != 1: + # Skip if expression contains no symbols or if multiple + # symbols exists since we assume each base symbol is defined + # by other codegen_symbol calls. + return + + from torch.utils._sympy.solve import try_solve + + free_symbol = undefined_symbols.pop() + base_name = name_fn(base_name) + # Use a size symbol to solve the free symbol + size_symbol = sympy.Symbol(f"{base_name}_{dim}", integer=True) + code.writeline(f"int64_t {size_symbol} = {base_name}[{dim}];") + solution = try_solve(sympy.Eq(sym_or_exp, size_symbol), free_symbol) + if solution is not None: + code.writeline(f"int64_t {free_symbol} = {cexpr(solution[1])};") + bound_vars.add(free_symbol) + else: + raise AssertionError( + str(sympy.Eq(sym_or_exp, size_symbol)) + " is not solvable" + ) + + if isinstance(value, sympy.Expr): + if not isinstance(value, sympy.Symbol) or value in bound_vars: + return + if value.is_integer: + decl = "int64_t" + elif value.is_float: + decl = "double" + else: + raise AssertionError("Unexpected symbol type") + code.writeline(f"{decl} {value} = {name};") + bound_vars.add(value) + elif isinstance(value, ir.TensorBox): + for dim, size in enumerate(value.get_size()): + codegen_symbol(size, name, sizeof, dim) + for dim, stride in enumerate(value.get_stride()): + codegen_symbol(stride, name, strideof, dim) + elif isinstance(value, ir.TorchBindObject): + # torchbind objects are loaded in proxy executor + pass + else: + raise AssertionError(f"Unknown value type: {type(value)}") + + def generate_input_output_runtime_checks(self): + """ + In debug_compile mode, we generate checks to ensure the dtype/shape/stride/device of each + real input/output tensor match ones provided at compile time via sample + input/output. + """ + + def gen_check(handle_kind, idx, name, tensor): + # Wrap AtenTensorHandle with ConstantHandle for cleaner utility function access + self.prefix.writeline( + f"ConstantHandle {name} = ConstantHandle({handle_kind}[{idx}]);" + ) + self.codegen_tensor_dtype_var_decl(self.prefix, name) + expected_dtype_name = DTYPE_TO_ATEN[tensor.dtype] + dtype_str = str(tensor.dtype).split(".")[-1] + self.prefix.splice( + f""" + int32_t {name}_expected_dtype = aoti_torch_dtype_{dtype_str}(); + if ({name}_expected_dtype != {name}_dtype) {{ + std::stringstream ss; + ss << "{handle_kind}[{idx}]: unmatched dtype, " + << "expected: " << {name}_expected_dtype << "({expected_dtype_name}), " + << "but got: " << {name}_dtype << "\\n"; + throw std::runtime_error(ss.str()); + }} + """ + ) + self.codegen_input_size_var_decl(self.prefix, name) + for dim_idx, d in enumerate(tensor.get_size()): + if isinstance(d, (int, sympy.Integer)): + self.prefix.splice( + f""" + if ({d} != {name}_size[{dim_idx}]) {{ + std::stringstream ss; + ss << "{handle_kind}[{idx}]: unmatched dim value at {dim_idx}, " + << "expected: {d}, " << "but got: " << {name}_size[{dim_idx}] + << "\\n"; + throw std::runtime_error(ss.str()); + }} + """ + ) + else: + from torch.utils._sympy.value_ranges import bound_sympy + + sym_range = bound_sympy(d, V.graph.sizevars.shape_env.var_to_range) + if config.aot_inductor.check_lowerbound and not math.isinf( + sym_range.lower + ): + self.prefix.splice( + f""" + if ({name}_size[{dim_idx}] < {sym_range.lower}) {{ + std::stringstream ss; + ss << "{handle_kind}[{idx}]: dim value is too small at {dim_idx}, " + << "expected it to be >= {sym_range.lower}, " << "but got: " + << {name}_size[{dim_idx}] << "\\n"; + throw std::runtime_error(ss.str()); + }} + """ + ) + if not math.isinf(sym_range.upper): + # Limit upper bound to max C long long value (2^63 - 1) + max_long_long = ctypes.c_longlong(2**63 - 1).value + upper_bound = min(sym_range.upper, max_long_long) + self.prefix.splice( + f""" + if ({name}_size[{dim_idx}] > {upper_bound}) {{ + std::stringstream ss; + ss << "{handle_kind}[{idx}]: dim value is too large at {dim_idx}, " + << "expected to be <= {upper_bound}, " << "but got: " + << {name}_size[{dim_idx}] << "\\n"; + throw std::runtime_error(ss.str()); + }} + """ + ) + + self.codegen_input_stride_var_decl(self.prefix, name) + for stride_idx, s in enumerate(tensor.get_stride()): + if not isinstance(s, (int, sympy.Integer)): + continue + self.prefix.splice( + f""" + if ({s} != {name}_stride[{stride_idx}]) {{ + std::stringstream ss; + ss << "{handle_kind}[{idx}]: unmatched stride value at {stride_idx}, " + << "expected: {s}, " << "but got: " << {name}_stride[{stride_idx}] + << "\\n"; + throw std::runtime_error(ss.str()); + }} + """ + ) + + # check input device type + if isinstance(tensor, ir.TensorBox): + tensor_device = tensor.get_device() + if tensor_device is not None: + expected_device_type = DEVICE_TO_INT.get(tensor_device.type) + if expected_device_type is not None: + self.codegen_input_device_type_var_decl(self.prefix, name) + device_type_str = str(tensor_device.type) + self.prefix.splice( + f""" + int32_t {name}_expected_device_type = {expected_device_type}; + if ({name}_expected_device_type != {name}_device_type) {{ + std::stringstream ss; + ss << "{handle_kind}[{idx}]: unmatched device type, " + << "expected: " << {name}_expected_device_type << "{expected_device_type}({device_type_str}), " + << "but got: " << {name}_device_type << "\\n"; + throw std::runtime_error(ss.str()); + }} + """ + ) + + # Create a separate function for each input check to avoid "too big to optimize" error + for idx, (name, tensor) in enumerate(V.graph.graph_inputs.items()): + self.prefix.splice( + f""" + AOTI_NOINLINE static void check_input_{idx}( + AtenTensorHandle* input_handles + ) {{ + """ + ) + with self.prefix.indent(): + gen_check("input_handles", idx, name, tensor) + self.prefix.writeline("}") + + # force noinline to avoid any potential compilation slowdown due to aggressive + # inline done by the host compiler + self.prefix.splice( + """ + static bool _check_aoti_runtime_check_inputs_env() { + const static char* env_var_value = getenv("AOTI_RUNTIME_CHECK_INPUTS"); + const static bool result = env_var_value != nullptr && env_var_value[0] != '0'; + return result; + } + + AOTI_NOINLINE static void __check_inputs_outputs( + AtenTensorHandle* input_handles, + AtenTensorHandle* output_handles) { + if (!_check_aoti_runtime_check_inputs_env()){ + return; + } + """ + ) + with self.prefix.indent(): + for idx in range(len(V.graph.graph_inputs)): + self.prefix.writeline(f"check_input_{idx}(input_handles);") + self.prefix.writeline("}") + + def write_wrapper_decl(self): + inputs_len = len(V.graph.graph_inputs.keys()) + if V.graph.aot_mode: + self.codegen_additional_funcs() + + if V.graph.const_module: + self.header.splice(V.graph.const_module.wrapper_code.header) + + assert V.graph.const_wrapper_code is not None + self.prefix.splice(V.graph.const_wrapper_code) + + assert V.graph.const_kernel_code is not None + self.kernel_declarations.splice(V.graph.const_kernel_code) + + if V.graph.is_const_graph: + self.prefix.splice( + f""" + void {self.aoti_model_class_name}::_const_run_impl( + std::vector& output_handles, + DeviceStreamType stream, + AOTIProxyExecutorHandle proxy_executor + ) {{ + """ + ) + else: + if not config.aot_inductor.use_runtime_constant_folding: + # If we do not split the constant graph, we'll just create + # an empty implementation when wrapping the main module. + self.prefix.splice( + f""" + void {self.aoti_model_class_name}::_const_run_impl( + std::vector& output_handles, + DeviceStreamType stream, + AOTIProxyExecutorHandle proxy_executor + ) {{}} + + """ + ) + + run_impl_proto = f""" + void {self.aoti_model_class_name}::run_impl( + AtenTensorHandle* + input_handles, // array of input AtenTensorHandle; handles + // are stolen; the array itself is borrowed + AtenTensorHandle* + output_handles, // array for writing output AtenTensorHandle; handles + // will be stolen by the caller; the array itself is + // borrowed + DeviceStreamType stream, + AOTIProxyExecutorHandle proxy_executor + ) {{ + __check_inputs_outputs(input_handles, output_handles); + """ + + self.generate_input_output_runtime_checks() + self.prefix.splice(run_impl_proto) + else: + # cpp entry function for JIT with cpp wrapper + self.prefix.splice( + """ + void inductor_entry_impl( + AtenTensorHandle* + input_handles, // array of input AtenTensorHandle; handles + // are stolen; the array itself is borrowed + AtenTensorHandle* + output_handles // array for writing output AtenTensorHandle; handles + // will be stolen by the caller; the array itself is + // borrowed) + ) { + """ + ) + with self.prefix.indent(): + # assign inputs and outputs in both cases so the later codegen can be simplified + if not V.graph.is_const_graph: + if V.graph.aot_mode: + num_args = len(V.graph.graph_inputs) + else: + # Weights are promoted in the JIT mode + num_args = len(V.graph.graph_inputs) + len(V.graph.constants) + # release GIL to support multiple instances inference (in different threads of the same process) + self.prefix.splice("py::gil_scoped_release_simple release;") + + self.prefix.splice( + f""" + auto inputs = steal_from_raw_handles_to_raii_handles(input_handles, {num_args}); + """ + ) + + if inputs_len != 0: + for idx, input_key in enumerate(V.graph.graph_inputs.keys()): + # unwrap input tensor back to scalar + if isinstance(V.graph.graph_inputs[input_key], sympy.Expr): + from ..graph import may_get_constant_buffer_dtype + + dtype = may_get_constant_buffer_dtype( + V.graph.graph_inputs[input_key] # type: ignore[arg-type] + ) + assert dtype is not None, ( + "Fails to get the dtype of the sympy.Expr" + ) + self.codegen_tensor_item( + dtype, f"inputs[{idx}]", input_key, self.prefix + ) + else: + self.prefix.writeline( + f"auto {input_key} = std::move(inputs[{idx}]);" + ) + # debug printing for all input args to AOTI model + debug_printer_manager = V.graph.wrapper_code.debug_printer + debug_printer_manager.codegen_model_inputs_value_print( + input_args_to_print=[ + input_key + for input_key in V.graph.graph_inputs + if input_key.startswith("arg") + ] + ) + + assert all( + isinstance(v, torch.Tensor) for v in list(V.graph.constants.values()) + ), "Expect all constants to be Tensor" + for idx, constants_key in enumerate(V.graph.constants.keys()): + if V.graph.aot_mode: + # Weights are stored in constants_ and owned by ConstantHandle there. + # Don't call std::move here because it will cause constants_ to lose the ownership. + self.prefix.writeline( + f"""[[maybe_unused]] auto& {constants_key} = constants_->at({idx});""" + ) + else: + # Append constants as inputs to the graph + constants_idx = inputs_len + idx + self.prefix.writeline( + f"[[maybe_unused]] auto {constants_key} = std::move(inputs[{constants_idx}]);" + ) + + self.codegen_inputs() + + if V.graph.aot_mode: + if not V.graph.is_const_graph: + self.prefix.writeline("inputs.clear();") + self.prefix.writeline( + "[[maybe_unused]] auto& kernels = static_cast(*this->kernels_.get());" + ) + + def codegen_tensor_dtype_var_decl(self, code: IndentedBuffer, name): + code.writeline(f"int32_t {name}_dtype;") + code.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_get_dtype({name}, &{name}_dtype));" + ) + + def codegen_input_size_var_decl(self, code: IndentedBuffer, name): + code.writeline(f"auto {name}_size = {name}.sizes();") + + def codegen_input_stride_var_decl(self, code: IndentedBuffer, name): + code.writeline(f"auto {name}_stride = {name}.strides();") + + def codegen_input_device_type_var_decl(self, code: IndentedBuffer, name): + code.writeline(f"int32_t {name}_device_type;") + code.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_get_device_type({name}, &{name}_device_type));" + ) + + def codegen_additional_funcs(self): + pass + + def codegen_model_kernels(self): + self.prefix.writeline("namespace {") + + # Tell compiler we need to link with the non-mangled symbols + for kernel in self.initialized_kernels.values(): + assert hasattr(kernel, "get_signature"), ( + f"{kernel} must have get_signature implemented" + ) + signature = kernel.get_signature() + self.prefix.writeline(f'extern "C" {signature};') + + self.prefix.writeline( + "class AOTInductorModelKernels : public AOTInductorModelKernelsBase {" + ) + self.prefix.writeline(" public:") + declare_kernel = OrderedSet(self.src_to_kernel.values()) - OrderedSet( + self.initialized_kernels.keys() + ) + declare_kernel.update( + entry[0] for entry in self.user_defined_kernel_cache.values() + ) + if V.graph.const_module: + declare_kernel.update( + V.graph.const_module.wrapper_code.src_to_kernel.values() + ) + for kernel in sorted(declare_kernel): + self.prefix.writeline( + maybe_hipify_code_wrapper( + f" {self.device_codegen.cpp_kernel_type()} {kernel}{{nullptr}};" + ) + ) + for name, kernel in self.initialized_kernels.items(): + assert hasattr(kernel, "get_signature"), ( + f"{kernel} must have get_signature implemented" + ) + kernel_ptr = f"(*{name})" + signature = kernel.get_signature().replace(name, kernel_ptr) + self.prefix.writeline(f" {signature} = torch::aot_inductor::{name};") + self.prefix.writeline("};") + self.prefix.writeline("} // namespace\n\n") + + if config.aot_inductor.embed_kernel_binary: + self.prefix.writeline('extern "C" {') + for name in sorted(declare_kernel): + self.prefix.writeline( + f" extern const unsigned char __{name}_start[];" + ) + if torch.xpu.is_available(): + self.prefix.writeline( + f" extern const unsigned char __{name}_end[];" + ) + self.prefix.writeline("}") + + # MSVC string was longer than the limit of 16380 single-byte characters. + # https://learn.microsoft.com/en-us/cpp/error-messages/compiler-errors-1/compiler-error-c2026 + MSVC_C2026_MAX_STRING_LENGTH = 16000 + + def codegen_write_arg_with_large_length_string( + self, + arg_name: str, + arg_str_val: str, + max_truncate_length: int = MSVC_C2026_MAX_STRING_LENGTH, + ): + def truncate_string(s: str, length: int) -> list[str]: + return [s[i : i + length] for i in range(0, len(s), length)] + + if len(arg_str_val) > max_truncate_length: + truncated_strs = truncate_string(arg_str_val, max_truncate_length) + self.prefix.writeline(f"{arg_name} =") + for truncate_str in truncated_strs: + self.prefix.writeline(f'R"({truncate_str})"') + self.prefix.writeline(";") + else: + self.prefix.writeline(f'{arg_name} = R"({arg_str_val})";') + + def codegen_model_constructor(self): + """ + // Generated code example + AOTInductorModel::AOTInductorModel() + : AOTInductorModelBase(4, 1) { + inputs_info_[0].name = "input0"; + inputs_info_[0].dtype = "torch.float16"; + ... + constants_info_[0].name = "L__self___weight"; + constants_info_[0].dtype = at::kFloat; + constants_info_[0].offset = 0; + constants_info_[0].data_size = 8192; + constants_info_[0].shape = {64, 32}; + constants_info_[0].stride = {32, 1}; + ... + outputs_info_[0].name = "output0"; + outputs_info_[0].dtype = "torch.float16"; + } + """ + + num_inputs = len(V.graph.graph_inputs) + num_outputs = len(V.graph.graph_outputs) + num_constants = len(V.graph.constants) + include_weights = ( + "true" + if config.aot_inductor.package_constants_in_so + and config.aot_inductor.package_constants_on_disk_format != "binary_blob" + else "false" + ) + self.prefix.splice( + f""" + {self.aoti_model_class_name}::{self.aoti_model_class_name}(std::shared_ptr constants_map, + std::shared_ptr> constants_array, + const std::string& device_str, + std::optional cubin_dir) + : AOTInductorModelBase({num_inputs}, + {num_outputs}, + {num_constants}, + device_str, + std::move(cubin_dir), + {include_weights}) {{ + """ + ) + + with self.prefix.indent(): + for idx, (name, inp) in enumerate(V.graph.graph_inputs.items()): + assert not isinstance(inp, sympy.Expr), ( + f"input {name=} cannot be symbolic" + ) + self.write_input_output_info("inputs_info_", idx, name) + + all_cuda = all( + V.graph.get_original_value_of_constant(name).is_cuda + for name in V.graph.constants + if name not in V.graph.folded_constants + ) + for idx, name in enumerate(V.graph.constants.keys()): + tensor = V.graph.get_original_value_of_constant(name) + assert isinstance(tensor, torch.Tensor) + self.prefix.writeline(f"""constants_info_[{idx}].name = "{name}";""") + self.prefix.writeline( + f"constants_info_[{idx}].dtype = static_cast({self.codegen_dtype(tensor.dtype)});" + ) + self.prefix.writeline( + f"constants_info_[{idx}].offset = {tensor.storage_offset()};" + ) + + # If constants to serialize contain cpu tensors, we always align data_size it to 64. + # When loading the constants, the valid data will depends on the size + # not the data_size so there won't be correctness issue. + data_size = ( + torch.ops.mkldnn._nbytes(tensor) + if tensor.is_mkldnn + else tensor.untyped_storage().nbytes() + ) + self.prefix.writeline( + f"constants_info_[{idx}].data_size = {data_size if all_cuda else _align(data_size)};" + ) + + from_folded = "true" if name in V.graph.folded_constants else "false" + self.prefix.writeline( + f"constants_info_[{idx}].from_folded = {from_folded};" + ) + + if name in V.graph.folded_constants: + constant_type_str = "FoldedConstant" + elif name.startswith("_tensor_constant"): + constant_type_str = "TensorConstant" + elif any( + name == normalize_name(parameter_name) + for parameter_name in V.graph.named_parameters + ): + constant_type_str = "Parameter" + elif any( + name == normalize_name(buffer_name) + for buffer_name in V.graph.named_buffers + ): + constant_type_str = "Buffer" + else: + constant_type_str = "Unknown" + self.prefix.writeline( + f"constants_info_[{idx}].type = static_cast(torch::aot_inductor::ConstantType::{constant_type_str});" + ) + + size_str = ", ".join([str(s) for s in tensor.size()]) + self.prefix.writeline(f"constants_info_[{idx}].shape = {{{size_str}}};") + + stride_str = ", ".join([str(s) for s in tensor.stride()]) + self.prefix.writeline( + f"constants_info_[{idx}].stride = {{{stride_str}}};" + ) + self.prefix.writeline( + f"constants_info_[{idx}].layout = static_cast({self.codegen_layout(tensor.layout)});" + ) + + if tensor.is_mkldnn: + opaque_metadata_tensor = torch.ops.mkldnn._get_mkldnn_serialized_md( + tensor + ) + assert opaque_metadata_tensor.dim() == 1, ( + "Expect opaque_metadata_tensor to be 1-D" + ) + + opaque_metadata_list = opaque_metadata_tensor.tolist() + opaque_metadata_str = self.codegen_shape_tuple(opaque_metadata_list) + self.prefix.writeline( + f"constants_info_[{idx}].opaque_metadata = {opaque_metadata_str};" + ) + if name in V.graph.dynamo_flat_name_to_original_fqn: + original_fqn = V.graph.dynamo_flat_name_to_original_fqn.get( + name, name + ) + elif name in V.graph.allocated_constant_name: + original_fqn = V.graph.allocated_constant_name[name] + else: + raise AssertionError("original_fqn must be set for constant") + self.prefix.writeline( + f"""constants_info_[{idx}].original_fqn = "{original_fqn}";""" + ) + self.prefix.writeline("update_constants_map(std::move(constants_map));") + self.prefix.writeline("update_constants_array(std::move(constants_array));") + + def escape_string(x): + return ( + x.replace("\\", "\\\\") + .replace('"', '\\"') + .replace("\n", "\\n") + .replace("\t", "\\t") + ) + + # Origin code: self.prefix.writeline(f'in_spec_ = R"({config.aot_inductor.serialized_in_spec})";') + # Fix msvc C2026 error via codegen_write_arg_with_large_length_string + self.codegen_write_arg_with_large_length_string( + arg_name="in_spec_", arg_str_val=config.aot_inductor.serialized_in_spec + ) + # Origin code: self.prefix.writeline(f'out_spec_ = R"({config.aot_inductor.serialized_out_spec})";') + # Fix msvc C2026 error via codegen_write_arg_with_large_length_string + self.codegen_write_arg_with_large_length_string( + arg_name="out_spec_", + arg_str_val=config.aot_inductor.serialized_out_spec, + ) + + for idx, output in enumerate(V.graph.graph_outputs): + assert not isinstance(output, sympy.Expr), ( + f"output {name=} cannot be symbolic" + ) + name = f"output{idx}" + self.write_input_output_info("outputs_info_", idx, name) + + self.prefix.writeline( + "this->kernels_ = std::make_unique();" + ) + + self.prefix.writeline("}") + + def codegen_const_run_driver(self): + """ + // Generated code example + std::unordered_map AOTInductorModel::const_run_impl( + DeviceStreamType stream, + AOTIProxyExecutorHandle proxy_executor, + bool initialization + ) { + std::unordered_map folded_constants_map; + std::vector output_handles; + // build up output_handles over here. + _const_run_impl(output_handles, stream, proxy_executor); + // build up folded_constants_map + return folded_constants_map; + } + """ + + self.prefix.splice( + f""" + std::unordered_map {self.aoti_model_class_name}::const_run_impl( + DeviceStreamType stream, + AOTIProxyExecutorHandle proxy_executor, + bool initialization + ) {{ + """ + ) + if not config.aot_inductor.use_runtime_constant_folding: + self.prefix.splice( + """ + if (!initialization) { + std::cerr << "[WARNING] Calling constant_folding in model, but compiled with config: " + << "aot_inductor.use_runtime_constant_folding=False\\n"; + } + return {}; + } + """ + ) + return + + with self.prefix.indent(): + # This is a mapping to the index of constant folding graph's output + const_index_mapping: list[Optional[tuple[int, str]]] = [None] * len( + V.graph.const_output_index + ) + for idx, (name, _) in enumerate(V.graph.constants.items()): + if name in V.graph.const_output_index: + const_index_mapping[V.graph.const_output_index[name]] = (idx, name) # type: ignore[call-overload] + assert None not in const_index_mapping, ( + "Not all constant gets mapped for constant folding graph." + ) + + self.prefix.writeline( + f""" + std::unordered_map folded_constants_map; + folded_constants_map.reserve({len(const_index_mapping)}); + std::vector output_handles({len(const_index_mapping)}); + """ + ) + + self.prefix.splice( + """ + // The below assignment of output_handles to constants is not used directly. + // It's only used to memo the correspondence of handle and constants. + """ + ) + + for output_idx, (const_idx, _) in enumerate(const_index_mapping): # type: ignore[misc] + self.prefix.writeline( + f"output_handles[{output_idx}] = constants_->at({const_idx});" + ) + + self.prefix.writeline( + "_const_run_impl(output_handles, stream, proxy_executor);" + ) + + for output_idx, (_, const_name) in enumerate(const_index_mapping): # type: ignore[misc] + self.prefix.writeline( + f'folded_constants_map["{const_name}"] = output_handles[{output_idx}];' + ) + self.prefix.writeline("return folded_constants_map;") + + self.prefix.writeline("}") + + def generate(self, is_inference): + with dynamo_timed("CppWrapperCpu.generate", log_pt2_compile_event=True): + self.write_wrapper_decl() + return super().generate(is_inference) + + def finalize_prefix(self): + prior = self.prefix + self.prefix = aot_mode_decls = IndentedBuffer() + if V.graph.aot_mode and not V.graph.is_const_graph: + aot_mode_decls.writeline("namespace torch::aot_inductor {") + self.codegen_model_kernels() + self.codegen_model_constructor() + self.codegen_const_run_driver() + aot_mode_decls.writeline("} // namespace torch::aot_inductor") + aot_mode_decls.writeline("using namespace torch::aot_inductor;") + + self.prefix = cache_decls = IndentedBuffer() + for dtype in self.used_cached_dtypes: + cache_decls.writeline(f"CACHE_TORCH_DTYPE({dtype});") + for device in self.used_cached_devices: + cache_decls.writeline(f"CACHE_TORCH_DEVICE({device});") + for layout in self.used_cached_layouts: + cache_decls.writeline(f"CACHE_TORCH_LAYOUT({layout});") + for memory_format in self.used_cached_memory_formats: + cache_decls.writeline(f"CACHE_TORCH_MEMORY_FORMAT({memory_format});") + + self.prefix.splice(aot_mode_decls) + self.prefix.splice(prior) + + def _define_kernel_helper( + self, + kernel_name: str, + kernel_body: str, + metadata: Optional[str] = None, + gpu: bool = False, + cpp_definition: Optional[str] = None, + ): + if cpp_definition is not None: + self.header.splice(cpp_definition) + self.kernel_declarations.splice(f"\n{kernel_body}\n") + else: + self.header.splice(f"\n{kernel_body}\n") + + def codegen_scalar_to_tensor(self, output: str): + name = f"scalar_to_tensor_{next(self.scalar_to_tensor_id)}" + self.wrapper_call.writeline( + f"RAIIAtenTensorHandle {name} = scalar_to_tensor_handle({output});" + ) + return name + + def codegen_tensor_item( + self, dtype: torch.dtype, tensor: str, scalar: str, indented_buffer=None + ): + dtype_str = str(dtype).split(".")[-1] + writer = indented_buffer or self + + if dtype == torch.float16 or dtype == torch.bfloat16: + scalar_tmp = f"{scalar}_tmp" + writer.writeline(f"{DTYPE_TO_CPP[dtype]} {scalar_tmp};") + writer.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_item_{dtype_str}({tensor}, &{scalar_tmp}));" + ) + writer.writeline(f"float {scalar} = float({scalar_tmp});") + else: + writer.writeline(f"{DTYPE_TO_CPP[dtype]} {scalar};") + writer.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_item_{dtype_str}({tensor}, &{scalar}));" + ) + + def generate_return(self, output_refs: list[str]): + cst_names = V.graph.constants.keys() + output2idx: dict[str, int] = {} + + # If any output ref represents an rvalue tensor, materialize it to an lvalue + # RAIIAtenTensorHandle first. This prevents situations where the code for the + # rvalue tensor references tensor handles whose contents are modified below. + output_refs = [ + self.create_tmp_raii_handle_var_if_needed(o, self.wrapper_call) + for o in output_refs + ] + + for idx, output in enumerate(output_refs): + if output == "nullptr": + continue + + is_constant_buffer = output in cst_names + output_buffer = V.graph.graph_outputs[idx] + if isinstance(output_buffer, ir.BaseView): + output_storage = output_buffer.unwrap_view() + assert isinstance(output_storage, (ir.BaseView, ir.MutableBox)) + if isinstance(output_storage.data, ir.ConstantBuffer): + is_constant_buffer = True + + if isinstance(output_buffer, ir.ShapeAsConstantBuffer): + # Need to wrap scalar into tensor as the main function returns a vector of tensors + output_tensor = self.codegen_scalar_to_tensor(output) + self.wrapper_call.writeline( + f"output_handles[{idx}] = {output_tensor}.release();" + ) + continue + + if is_constant_buffer: + # See NOTE(return_constant) above. + self.wrapper_call.writeline( + f"aoti_torch_clone({output}, &output_handles[{idx}]);" + ) + else: + if output in output2idx: + src_idx = output2idx[output] + self.wrapper_call.writeline( + f"output_handles[{idx}] = output_handles[{src_idx}];" + ) + else: + self.wrapper_call.writeline( + f"output_handles[{idx}] = {output}.release();" + ) + + if output not in output2idx: + output2idx[output] = idx + + def generate_before_suffix(self, result): + if not V.graph.is_const_graph: + if V.graph.aot_mode: + result.writeline(f"}} // {self.aoti_model_class_name}::run_impl") + else: + result.writeline("} // inductor_entry_impl") + + def generate_end(self, result): + """Generates the end of the code block, and any code needed to call it.""" + if V.graph.aot_mode: + if V.graph.is_const_graph: + result.writeline(f"}} // {self.aoti_model_class_name}::_const_run_impl") + else: + result.writeline("} // namespace torch::aot_inductor\n\n\n") + return + + if config.cpp_wrapper_build_separate: + # Close the wrapper code block, then write any kernel definitions. + result.splice("'''\n)") + if self.kernel_declarations: + result.splice("\nkernel_src = (\nr'''") + result.splice(self.kernel_declarations.getvalue()) + result.splice("'''\n)") + else: + result.splice( + """ + kernel_src = '' + """ + ) + else: + # Merge main code and kernel code + result.splice(self.kernel_declarations.getvalue()) + self.kernel_declarations.clear() + # Close the wrapper code block + result.splice("'''\n)") + + kernel_code = "kernel_src" if config.cpp_wrapper_build_separate else "None" + # Cpp entry function for JIT with cpp wrapper + result.splice( + f""" + inductor_entry = CppWrapperCodeCache.load_pybinding( + argtypes=["std::vector"], + main_code=cpp_wrapper_src, + device_type="{self.device}", + num_outputs={len(V.graph.graph_outputs)}, + kernel_code={kernel_code}, + ) + """ + ) + + wrapper_body = "input_tensors = [arg if isinstance(arg, torch.Tensor) else torch.tensor(arg, device='cpu') for arg in args]" + if V.graph.constants: + # Append constants to the input args for cpp wrapper. + # Python wrapper directly gets the value inside the wrapper call + # as a global variable passed when calling exec(code, mod.__dict__, mod.__dict__). + # For cpp wrapper, we need to pass this python value to the inductor_entry_impl function explicitly. + assert all( + isinstance(v, torch.Tensor) for v in list(V.graph.constants.values()) + ), "Expect all constants to be Tensor" + constants_str = f"[{', '.join(V.graph.constants.keys())}]" + wrapper_body += f""" + constants_tensor = {constants_str} + input_tensors.extend(constants_tensor) + """ + # Convert vector of at::Tensor to vector of AtenTensorHandle. + # If we pass at::Tensor, the compilation will be too slow. + wrapper_body += """ + input_handles = torch._C._aoti.unsafe_alloc_void_ptrs_from_tensors(input_tensors) + """ + # Release the inputs for memory reuse. + wrapper_body += """ + args.clear() + del input_tensors + """ + + # unwrap output tensor back to python scalar + if all(x for x in self.output_is_tensor.values()): + # If no ShapeAsConstantBuffer in the output, directly return the output as tensors + outputs_str = "output_tensors" + else: + outputs = [ + ( + f"output_tensors[{i}]" + if self.output_is_tensor[i] + else f"output_tensors[{i}].item()" + ) + for i in range(len(V.graph.graph_outputs)) + ] + outputs_str = f"[{', '.join(outputs)}]" + wrapper_body += f""" + output_handles = f(input_handles) + output_tensors = torch._C._aoti.alloc_tensors_by_stealing_from_void_ptrs(output_handles) + return {outputs_str} + """ + + # Wrap the func to support setting result._boxed_call = True + result.splice( + f""" + def _wrap_func(f): + def g(args): + {wrapper_body} + return g + + call = _wrap_func(inductor_entry) + """ + ) + + @staticmethod + def get_c_shim_func_name(kernel: str, device: str) -> str: + if kernel.startswith("aoti_torch_"): + return kernel + + assert "::" in kernel, "Cpp kernel name: " + kernel + " does not contain '::'" + kernel_tokens = kernel.split("::") + kernel_suffix = kernel_tokens[-1] + if kernel_suffix == "call": + kernel_suffix = kernel_tokens[-2] + + shim_fn = f"aoti_torch_{device}_{kernel_suffix}" + return shim_fn + + def generate_c_shim_extern_kernel_call( + self, + kernel: str, + args: list[str], + device: str, + *, + debug_args: Optional[list[str]] = None, + stack_traces: Optional[OrderedSet[str]] = None, + ) -> None: + """debug_args kwarg allows CppWrapperCpuArrayRef to pass in wrapped arguments in + place of args while preserving debug printer output.""" + # We can do this unconditionally, since we cache this call. + self.add_device_include(device) + + debug_printer_manager = V.graph.wrapper_code.debug_printer + debug_printer_manager.set_printer_args( + debug_args if debug_args is not None else args, kernel, None, None, "extern" + ) + enable_kernel_profile = config.cpp.enable_kernel_profile and sys.platform in [ + "linux", + "win32", + ] + with debug_printer_manager: + shim_fn = self.get_c_shim_func_name(kernel, device) + shim_fn_codes = [ + f"AOTI_TORCH_ERROR_CODE_CHECK({shim_fn}({', '.join(args)}));" + ] + if enable_kernel_profile: + stack_trace_str = 'R"(' + if stack_traces: + for stack_trace in stack_traces: + for line in stack_trace.split("\n"): + stack_trace_str += f"\n{line}" + stack_trace_str += "\n" + stack_trace_str += ')"' + + shim_fn_codes = [ + "{", + f"""KernelContextGuard _ctx("{shim_fn}", {stack_trace_str});""", + f"""RAIIAtenRecordFunctionHandle record_{shim_fn}_("{shim_fn}", nullptr);""", + shim_fn_codes[0], + "}", + ] + self.writelines(shim_fn_codes) + + def generate_c_shim_extern_kernel_alloc( + self, extern_kernel: ir.ExternKernelAlloc, args: list[str] + ) -> None: + # registered output buffer name + name = extern_kernel.name + output_handle_name = f"{name}_handle" + is_inplace = ( + isinstance(extern_kernel.op_overload, torch._ops.OpOverload) + and torch.Tag.inplace_view in extern_kernel.op_overload.tags + ) + + if not is_inplace: + self.writeline(f"AtenTensorHandle {output_handle_name};") + args = [*args, f"&{output_handle_name}"] + + device = d.type if (d := extern_kernel.get_device()) else self.device + + self.generate_c_shim_extern_kernel_call( + extern_kernel.get_kernel_name(), args, device + ) + + if extern_kernel.python_kernel_name in ( + "torch.ops._c10d_functional.all_reduce_.default", + "torch.ops._c10d_functional.wait_tensor.default", + ): + # all_reduce_ is an inplace op and its returned tensor is not used anywhere. + # wait_tensor returns its input without any modification and the returned tensor is not used anywhere. + # In both cases, we can immediately delete the returned AtenTensorHandle to reduce its lifetime. + self.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_delete_tensor_object({output_handle_name}));" + ) + elif not is_inplace: + self.writeline(f"RAIIAtenTensorHandle {name}({output_handle_name});") + + def _generate_extern_kernel_alloc_helper(self, extern_kernel, args): + if getattr(extern_kernel, "outputs", None): + # ir.ExternKernelAlloc may have outputs if it returns a tuple + self.generate_c_shim_fallback_kernel(extern_kernel, args) + else: + self.generate_c_shim_extern_kernel_alloc(extern_kernel, args) + + def generate_c_shim_fallback_kernel( + self, fallback_kernel: ir.FallbackKernel, args: list[str] + ) -> None: + output_args = [] + output_raii_handles = [] + output_name_base = fallback_kernel.get_name() + for idx, output in enumerate(fallback_kernel.outputs): + if isinstance(output, ir.MultiOutput): + # TODO: handle integer output (e.g., as in attention) + name = f"{output.get_name()}" + output_handle_name = f"{name}_handle" + if output.indices: + assert output.indices[0][1] == idx, ( + f"expected {output.indices[0][1]=} == {idx=} for {output_name_base=}" + ) + self.writeline(f"AtenTensorHandle {output_handle_name};") + output_args.append(f"&{output_handle_name}") + output_raii_handles.append( + f"RAIIAtenTensorHandle {name}({output_handle_name});" + ) + elif isinstance(output, int): + output_name = f"{output_name_base}_{idx}" + self.writeline(f"int64_t {output_name} = {output};") + output_args.append(f"&{output_name}") + elif isinstance(output, sympy.Expr): + output_name = f"{output_name_base}_{idx}" + self.writeline(f"auto {output_name} = {cexpr(output)};") + output_args.append(f"&{output_name}") + elif output is None: + output_args.append("nullptr") + else: + raise NotImplementedError(f"unsupported type of {output=}") + args = args + output_args + device = d.type if (d := fallback_kernel.get_device()) else self.device + + self.generate_c_shim_extern_kernel_call( + fallback_kernel.cpp_kernel_name, # type: ignore[arg-type] + args, + device, + ) + for raii_handle in output_raii_handles: + self.writeline(raii_handle) + + def _generate_extern_kernel_out_helper( + self, + kernel: str, + out: str, + out_view: Optional[str], + args: list[str], + device: str, + stack_traces: Optional[OrderedSet[str]] = None, + ) -> None: + if out_view: + out_name = f"{out}_as_strided" + self.writeline(f"auto {out_name} = {out_view};") + args.insert(0, out_name) + else: + args.insert(0, out) + + self.generate_c_shim_extern_kernel_call( + kernel, args, device, stack_traces=stack_traces + ) + + def _get_scatter_reduce_enum(self, reduce): + # Follow aten/src/ATen/native/ReductionType.h:get_operator_enum + get_operator_enum = {"add": "sum", "multiply": "prod"} + if reduce in get_operator_enum: + reduce = get_operator_enum[reduce] + + return reduce + + def _generate_scatter_fallback( + self, + output, + inputs, + cpp_kernel_name, + python_kernel_name, + src_is_tensor, + reduce, + kwargs, + device, + ): + reduce = self._get_scatter_reduce_enum(reduce) + + # call the ABI shim function instead of the ATen one + self.add_device_include(device) + cpp_kernel_name = self.get_c_shim_func_name(cpp_kernel_name, device) + # TODO: consider remove "_out" and add missing inplace variants to fallback_ops.py + cpp_kernel_name = cpp_kernel_name.replace("__", "_") + "_out" + inputs_wrapped = [str(x) for x in inputs] + line = f"{cpp_kernel_name}({output}, {','.join(inputs_wrapped)}" + + if python_kernel_name.startswith("aten.scatter_reduce"): + line += f", {','.join(kwargs)}" + else: + if src_is_tensor: + if reduce: + line += f", {V.graph.wrapper_code.val_to_arg_str(reduce)}" + else: + assert reduce is None, ( + "Expect reduce to be None for aten.scatter_ with scalar src" + ) + line += ");" + self.writeline(line) + + def _generate_index_put_fallback(self, kernel, x, indices, values, accumulate): + # TODO: update aoti_torch_index_put_out in ir.py to use autogen out version + # See the comment in codegen_reinterpret_view about why having something like + # RAIIAtenTensorHandle(tmp_tensor_handle_2) in a tmp array can cause the corresponding + # tensor prematurely deallocated, thus the temporary array trick here. + indices_str = self._generate_temporary_array_pointer( + "AtenTensorHandle", indices + ) + args = [ + x, + indices_str, + str(len(indices)), + values, + accumulate, + ] + args.insert(0, x) # set x as the output tensor, this fallback mutates x. + self.writeline(self.wrap_kernel_call(kernel, args)) + + def add_benchmark_harness(self, output): + if V.graph.aot_mode: + return + super().add_benchmark_harness(output) + + def codegen_cpp_sizevar(self, x: sympy.Expr, *, simplify: bool = True) -> str: + return cexpr(V.graph.sizevars.simplify(x) if simplify else x) + + def codegen_sizevar(self, x: sympy.Expr) -> str: + return self.codegen_cpp_sizevar(x) + + def codegen_tuple_access(self, basename: str, name: str, index: str) -> str: + # in the abi_compatible mode, outputs are returned via arguments + return name + + def codegen_shape_tuple(self, shape: Sequence[sympy.Expr]) -> str: + parts = [*map(self.codegen_sizevar, shape)] + if len(parts) == 0: + return "{}" + if len(parts) == 1: + return f"{{{parts[0]}, }}" + return f"{{{', '.join(parts)}}}" + + def ensure_size_computed(self, sym: sympy.Symbol): + if isinstance(sym, sympy.Symbol) and symbol_is_type(sym, SymT.PRECOMPUTED_SIZE): + if sym in self.computed_sizes: + return + self.computed_sizes.add(sym) + expr = V.graph.sizevars.inv_precomputed_replacements[sym] + self.writeline(f"int64_t {sym} = {cexpr(expr)};") + + def _generate_symbolic_call_arg_helper( + self, arg: SymbolicCallArg, graph: GraphLowering + ) -> None: + if (arg.inner, graph) not in self.kernel_numel_expr: + # declare expr once in each graph (scope) + self.kernel_numel_expr.add((arg.inner, graph)) + self.writeline(f"int64_t {arg.inner} = {cexpr(arg.inner_expr)};") + else: + self.writeline(f"{arg.inner} = {cexpr(arg.inner_expr)};") + + def _codegen_dynamic_scalar(self, node): + (data,) = (t.codegen_reference() for t in node.inputs) + self.codegen_tensor_item(node.inputs[0].get_dtype(), data, f"{node.sym}_raw") + + if len(node.keypath) == 0: + self.writeline(f"auto {node.sym} = {node.sym}_raw;") + elif len(node.keypath) == 1 and isinstance(node.keypath[0], ConvertIntKey): + self.writeline(f"int64_t {node.sym} = {node.sym}_raw ? 1 : 0;") + elif len(node.keypath) == 1 and isinstance(node.keypath[0], DivideByKey): + # TODO: assert divisibility here + self.writeline( + f"int64_t {node.sym} = {node.sym}_raw / {node.keypath[0].divisor};" + ) + else: + raise AssertionError(f"unrecognized keypath {node.keypath}") + + # record in unbacked_symbol_decls so we won't generate a declaration of the symbol again + self.unbacked_symbol_decls.add(str(node.sym)) + + def codegen_dynamic_select_index(self, node, clamp): + index_cpp_str = self.val_to_arg_str_for_prim_type(node.index, int) + size_cpp_str = self.val_to_arg_str_for_prim_type(node.size, int) + + # codegen index + sym = node.unbacked_offset_symbol + index_str = ( + f"{index_cpp_str} < 0 ? {index_cpp_str} + " + f"{self.val_to_arg_str_for_prim_type(node.size, int)}: {index_cpp_str}" + ) + self.writeline(f"auto {sym}_index = {index_str};") + index_str_clamped = ( + f"{sym}_index < 0 ? 0 : ({sym}_index > {size_cpp_str} ? {size_cpp_str} : {sym}_index)" + if clamp + else f"{sym}_index" + ) + self.writeline(f"auto {sym}_index_clamped = {index_str_clamped};") + self.writeline( + f"auto {sym} = {self.val_to_arg_str_for_prim_type(node.base_offset, int)} + " + f"{self.val_to_arg_str_for_prim_type(node.base_dim_stride, int)} * {sym}_index_clamped;" + ) + # record in unbacked_symbol_decls so we won't generate a declaration of the symbol again + self.unbacked_symbol_decls.add(str(sym)) + + def codegen_dynamic_slice_size(self, node): + start_cpp_str = self.val_to_arg_str_for_prim_type(node.start, int) + end_cpp_str = self.val_to_arg_str_for_prim_type(node.end, int) + size_cpp_str = self.val_to_arg_str_for_prim_type(node.size, int) + step_cpp_str = self.val_to_arg_str_for_prim_type(node.step, int) + sym = node.unbacked_size_symbol + + def codegen_clamp(index_str, start=True): + suf = "st" if start else "en" + index_ = f"{sym}_{suf}_index" + self.writeline( + f"int64_t {index_} = {index_str} < 0 ? {index_str} + {size_cpp_str} : {index_str};" + ) + self.writeline( + f"int64_t {sym}_{suf}_cl = {index_} < 0 ? 0 : ({index_} > {size_cpp_str} ? {size_cpp_str} : {index_});" + ) + + codegen_clamp(start_cpp_str, start=True) + codegen_clamp(end_cpp_str, start=False) + if node.step == 1: + step_str = f"{sym}_en_cl - {sym}_st_cl" + else: + step_str = ( + f"({sym}_en_cl - {sym}_st_cl + {step_cpp_str} - 1) / {step_cpp_str}" + ) + self.writeline(f"int64_t {sym}_with_step = {step_str};") + self.writeline(f"int64_t {sym} = {sym}_with_step < 0 ? 0 : {sym}_with_step;") + self.unbacked_symbol_decls.add(str(sym)) + + def make_buffer_free(self, buffer): + return ( + "" + if isinstance(buffer.get_output_spec(), ir.MultiOutputLayout) + or isinstance(buffer, ir.TMADescriptor) + else f"{buffer.get_name()}.reset();" + ) + + def make_free_by_names(self, names_to_del: list[str]): + return " ".join(f"{name}.reset();" for name in names_to_del) + + def codegen_exact_buffer_reuse(self, old_name: str, new_name: str, del_line: str): + return f"auto {new_name} = std::move({old_name}); // reuse" + + def generate_profiler_mark_wrapper_call(self, stack): + self.wrapper_call.writeline( + 'RAIIAtenRecordFunctionHandle record_inductor_wrapper_call_("inductor_wrapper_call", nullptr);' + ) + + def generate_start_graph(self): + pass + + def generate_end_graph(self): + pass + + def generate_inf_and_nan_checker(self, nodes): + for buf in nodes.get_names(): + # TODO: Add buf name directly into check_inf_and_nan. + self.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_check_inf_and_nan({buf}));" + ) + + def codegen_device(self, device): + assert device.type in DEVICE_TO_ATEN, ( + device.type + " not found in DEVICE_TO_ATEN" + ) + device_str = DEVICE_TO_ATEN[device.type][5:].lower() # remove "at::k" + self.used_cached_devices.add(device_str) + return f"cached_torch_device_type_{device_str}, {device.index if device.index else 0}" + + def codegen_dtype(self, dtype): + dtype_str = str(dtype).split(".")[-1] + self.used_cached_dtypes.add(dtype_str) + return f"cached_torch_dtype_{dtype_str}" + + def codegen_layout(self, layout): + layout_str = str(layout).split(".")[-1] + self.used_cached_layouts.add(layout_str) + return f"cached_torch_layout_{layout_str}" + + def codegen_memory_format(self, memory_format): + memory_format_str = str(memory_format).split(".")[-1] + self.used_cached_memory_formats.add(memory_format_str) + return f"cached_torch_memory_format_{memory_format_str}" + + def codegen_int_array_var( + self, + int_array: str, + writeline: Callable[..., None], + known_statically=False, + graph=None, # for per-graph caching + ) -> str: + # Use id(graph) for caching to avoid circular references + cache_key = ( + int_array, + id(writeline), + known_statically, + id(graph) if graph else None, + ) + if cache_key not in self.codegen_int_array_var_cache: + self.codegen_int_array_var_cache[cache_key] = ( + self._codegen_int_array_var_impl(int_array, writeline, known_statically) + ) + + return self.codegen_int_array_var_cache[cache_key] + + def _codegen_int_array_var_impl( + self, + int_array: str, + writeline: Callable[..., None], + known_statically: bool, + ) -> str: + # Used for size/stride declaration + # + # Because the memory planning is done in two passes (see the implementation + # of self.generate), the writeline behavior is different in the two passes. + # As a result, the emitted int array declarations may appear in a later + # position of the generated code, so the second pass codegen should not + # reuse int array declarations generated in the first pass. + # This is why writeline needs to explicitly passed in as a parameter. + var = f"int_array_{next(self.int_array_id)}" + ctype = "int64_t" + if int_array == "{}": + # An array of unknown bound cannot be initialized with {}. + if known_statically: + if config.cpp.use_constexpr_for_int_array: + writeline(f"static constexpr {ctype} *{var}=nullptr;") + else: + writeline(f"static const {ctype} *{var}=nullptr;") + else: + writeline(f"const {ctype} *{var}=nullptr;") + else: + if var not in self.declared_int_array_vars: + self.declared_int_array_vars.add(var) + if known_statically: + if config.cpp.use_constexpr_for_int_array: + writeline(f"static constexpr {ctype} {var}[] = {int_array};") + else: + writeline(f"static const {ctype} {var}[] = {int_array};") + else: + writeline(f"const {ctype} {var}[] = {int_array};") + return var + + def make_buffer_allocation(self, buffer): + return self.make_allocation( + buffer.get_name(), + buffer.get_device(), + buffer.get_dtype(), + buffer.get_size(), + buffer.get_stride(), + V.graph.get_allocation_size(buffer), + buffer.get_is_pinned(), + ) + + def make_allocation( + self, name, device, dtype, shape, stride, allocation_shape=None, is_pinned=False + ): + if allocation_shape is None: + allocation_shape = shape + + orig_stride = stride + device_str = self.codegen_device(device) + dtype_code = self.codegen_dtype(dtype) + size = self.codegen_shape_tuple(shape) + allocation_size = self.codegen_shape_tuple(allocation_shape) + stride = self.codegen_shape_tuple(orig_stride) + + size_array_var = self.codegen_int_array_var( + size, + self.wrapper_call.writeline, + known_statically=self.is_statically_known_list_of_ints(shape), + graph=self.get_codegened_graph(), + ) + + if allocation_size != size: + allocation_size_array_var = self.codegen_int_array_var( + allocation_size, + self.wrapper_call.writeline, + known_statically=self.is_statically_known_list_of_ints( + allocation_shape + ), + graph=self.get_codegened_graph(), + ) + else: + allocation_size_array_var = size_array_var + + stride_array_var = self.codegen_int_array_var( + stride, + self.wrapper_call.writeline, + known_statically=self.is_statically_known_list_of_ints(orig_stride), + graph=self.get_codegened_graph(), + ) + device_type, device_id = device_str.split(",") + device_idx = "this->device_idx_" if V.graph.aot_mode else device_id + + handle_name = f"{name}_handle" + args = [ + str(len(shape)), + allocation_size_array_var, + stride_array_var, + dtype_code, + device_type, + device_idx, + f"&{handle_name}", + ] + + self.wrapper_call.writeline(f"AtenTensorHandle {handle_name};") + pinned_str = "_pinned" if is_pinned else "" + self.wrapper_call.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_empty_strided{pinned_str}({', '.join(args)}));" + ) + + if allocation_size != size: + old_handle_name, handle_name = handle_name, f"{name}_handle_restrided" + self.wrapper_call.writeline(f"AtenTensorHandle {handle_name};") + args = [ + old_handle_name, + size_array_var, + stride_array_var, + f"&{handle_name}", + ] + self.wrapper_call.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_as_strided({', '.join(args)}));" + ) + self.wrapper_call.writeline( + f"wrap_with_raii_handle_if_needed({old_handle_name});" + ) + + return f"RAIIAtenTensorHandle {name}({handle_name});" + + def codegen_alloc_from_pool( + self, name, offset, dtype, shape, stride + ) -> tuple[str, list[str]]: + size = self.codegen_shape_tuple(shape) + stride = self.codegen_shape_tuple(stride) + tmp_name = f"tmp_tensor_handle_{next(self.tmp_tensor_id)}" + args = [ + name, + cexpr(offset), # bytes not numel + self.codegen_dtype(dtype), + str(len(shape)), + self.codegen_int_array_var( + size, self.wrapper_call.writeline, graph=self.get_codegened_graph() + ), + self.codegen_int_array_var( + stride, self.wrapper_call.writeline, graph=self.get_codegened_graph() + ), + f"&{tmp_name}", + ] + # We return the lines instead of writing here because writing here is bug prune. + # If you write aoti_torch__alloc_from_pool lines, you must write the RAIIAtenTensorHandle + # as well, otherwise you get memory leaks + allocations_to_write = [ + f"AtenTensorHandle {tmp_name};", + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch__alloc_from_pool({', '.join(args)}));", + ] + return f"RAIIAtenTensorHandle({tmp_name})", allocations_to_write + + def codegen_reinterpret_view( + self, + data, + size, + stride, + offset, + writeline: Callable[..., None], + dtype=None, + ) -> str: + """Returns a newly-created, temporary RAII tensor handle containing the + reinterpreted tensor data. Callers of this function are responsible for saving + the handle if persistent access is needed.""" + + d_size, d_stride, d_offset, d_dtype, collapsible = ( + codegen_reinterpret_view_helper(data) + ) + + dim = str(len(size)) + original_offset = offset + offset = self.codegen_sizevar(offset) + call_strs = [] + final_tensor_str = None + + def create_reinterpret_call() -> str: + args = [ + f"{data.get_name()}", + dim, + self.codegen_int_array_var( + self.codegen_shape_tuple(size), + writeline, + known_statically=self.is_statically_known_list_of_ints(size), + graph=self.get_codegened_graph(), + ), + self.codegen_int_array_var( + self.codegen_shape_tuple(stride), + writeline, + known_statically=self.is_statically_known_list_of_ints(stride), + graph=self.get_codegened_graph(), + ), + offset, + ] + return f"wrap_with_raii_handle_if_needed(reinterpret_tensor_wrapper({', '.join(args)}))" + + def create_dtypeview_call(reinterpret_call: str) -> tuple[str, list[str]]: + tmp_AtenTensorHandle = f"tmp_{data.get_name()}_{next(self.tmp_tensor_id)}" + tmp_call_strs = [f"AtenTensorHandle {tmp_AtenTensorHandle};"] + device_name = data.layout.device.type + dtypeview_function = f"aoti_torch_{device_name}_view_dtype" + tmp_call_strs.append( + f"AOTI_TORCH_ERROR_CODE_CHECK({dtypeview_function}" + f"({reinterpret_call}, {self.codegen_dtype(dtype)}, &{tmp_AtenTensorHandle}));" + ) + return f"RAIIAtenTensorHandle({tmp_AtenTensorHandle})", tmp_call_strs + + def create_new_tensor_handle() -> tuple[str, list[str]]: + tmp_AtenTensorHandle = f"tmp_{data.get_name()}_{next(self.tmp_tensor_id)}" + tmp_call_strs = [ + f"AtenTensorHandle {tmp_AtenTensorHandle};", + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_new_tensor_handle({data.get_name()}, &{tmp_AtenTensorHandle}));", + ] + return f"RAIIAtenTensorHandle({tmp_AtenTensorHandle})", tmp_call_strs + + collapsed = collapsible and original_offset == d_offset + if collapsed: + same_layout = size == d_size and stride == d_stride + base_dtype = d_dtype + else: + same_layout = ( + size == data.layout.size + and stride == data.layout.stride + and original_offset == data.layout.offset + ) + base_dtype = data.dtype + + if same_layout: + # pure dtypeview + if dtype is not None and dtype != base_dtype: + final_tensor_str, tmp_call_strs = create_dtypeview_call(data.get_name()) + else: + final_tensor_str, tmp_call_strs = create_new_tensor_handle() + call_strs.extend(tmp_call_strs) + else: + # firstly create reinterpretview + final_tensor_str = create_reinterpret_call() + if dtype is not None and dtype != base_dtype: + # wrap it with dtypeview + final_tensor_str, tmp_call_strs = create_dtypeview_call( + final_tensor_str + ) + call_strs.extend(tmp_call_strs) + + for line in call_strs: + writeline(line) + + # NB, the return handle here represents a temporary tensor, which will be automatically + # released. + # Here's a sample usage in the cpp wrapper code: + # ``` + # aoti_torch_addmm_out( + # buf1, + # arg1_1, + # RAIIAtenTensorHandle(tmp_tensor_handle_0), + # buf0, + # 1L, + # 1L)); + # ``` + # RAIIAtenTensorHandle(tmp_tensor_handle_0) will be released after the call to addmm_out. + # This could be problematic when it's used in a different pattern, for example: + # ```` + # AtenTensorHandle tensor_args[] = {RAIIAtenTensorHandle(tmp_tensor_handle_2), buf5, buf6}; + # aoti_torch_proxy_executor_call_function(..., tensor_args); + # ```` + # RAIIAtenTensorHandle(tmp_tensor_handle_2) will be invalid when it's used in the latter + # kernel call. + # + # This is solved by updating the proxy_executor invocation to + # ``` + # aoti_torch_proxy_executor_call_function(..., + # std::array{ + # RAIIAtenTensorHandle(tmp_tensor_handle_2), buf5, buf6 + # }.cbegin() + # ); + # ``` + return final_tensor_str + + def codegen_device_copy(self, src, dst, non_blocking: Union[bool, str]): + """This function is overridden by cpp_wrapper_cpu_array_ref, so we don't need to + handle cases where dst is not an AtenTensorHandle.""" + self.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_copy_({dst}, {src}, {non_blocking}));" + ) + + def codegen_multi_output(self, node: ir.MultiOutput): + # in the abi_compatible mode, outputs are retrieved by passing + # output pointers, so we skip its codegen here. + pass + + def codegen_subgraph_prefix(self, subgraph, outer_inputs, outer_outputs): + assert len(subgraph.graph.graph_inputs) == len(outer_inputs) + + for (inner_input, inner_input_val), outer_input in zip( + subgraph.graph.graph_inputs.items(), outer_inputs + ): + if not isinstance(inner_input_val, ir.TensorBox): + continue + + # in ABI-compatible mode, we copy the underlying at::Tensor of the conditional + # input (outer_input) into another at::Tensor to be used as a subgraph input + # (inner_input) in the nested scope. we can't std::move here, as the codegened + # outer input may be an expression / rvalue (e.g., reinterpret_view(x)), so we + # can't necessarily std::move it back to the origin (x). + self.writeline(f"AtenTensorHandle {inner_input}_handle;") + self.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_assign_tensors_out({outer_input}, &{inner_input}_handle));" + ) + self.writeline(f"RAIIAtenTensorHandle {inner_input}({inner_input}_handle);") + + def codegen_subgraph_suffix(self, subgraph, outer_inputs, outer_outputs): + for inner_output, outer_output in zip( + subgraph.graph.graph_outputs, outer_outputs + ): + src = inner_output.codegen_reference() + if not isinstance(inner_output, ir.ShapeAsConstantBuffer): + # in ABI-compatible mode, we need to std::move subgraph output (inner_output) + # to the conditional output (outer_output), as RAIIAtenTensorHandle's copy + # constructor is deleted. + src = f"std::move({src})" + # in case the outer_output carried a value + # before (e.g., in the while_loop codegen) + self.writeline(f"{outer_output}.reset();") + self.writeline(f"{outer_output} = {src};") + + def codegen_invoke_subgraph(self, invoke_subgraph): + raise NotImplementedError( + "codegen invoke_subgraph is not implemented for cpp wrapper" + ) + + def codegen_conditional(self, conditional): + outer_inputs = [f"{buf.codegen_reference()}" for buf in conditional.operands] + outer_outputs = [] + for out in conditional.outputs: + # in ABI-compatible mode, ir.MultiOutput is not codegened, + # hence pre-declare output variables directly and separately + self.writeline(f"RAIIAtenTensorHandle {out.get_name()};") + outer_outputs.append(out.get_name()) + + if not isinstance(conditional.predicate, ir.ShapeAsConstantBuffer): + # in ABI-compatible mode, we need to use the ABI shim function + # to extract a C++ bool from the underlying scalar bool Tensor + predicate = f"{conditional.predicate.get_name()}_scalar" + if predicate not in self.used_cond_predicate: + self.codegen_tensor_item( + torch.bool, + conditional.predicate.codegen_reference(), + predicate, + ) + self.used_cond_predicate.add(predicate) + else: + # the predicate is not a Tensor: SymBool or Python bool + predicate = conditional.predicate.codegen_reference() + + self.writeline(f"if ({predicate}) {{") + self.writeline(EnterSubgraphLine(self, conditional.true_subgraph.graph)) + self.codegen_subgraph(conditional.true_subgraph, outer_inputs, outer_outputs) + self.writeline(ExitSubgraphLine(self)) + self.writeline("} else {") + self.writeline(EnterSubgraphLine(self, conditional.false_subgraph.graph)) + self.codegen_subgraph(conditional.false_subgraph, outer_inputs, outer_outputs) + self.writeline(ExitSubgraphLine(self)) + self.writeline("}") + + def codegen_subgraph(self, subgraph, outer_inputs, outer_outputs): + # TODO (desertfire) - This function is the old way of supporting + # subgraph codegen by inlining subgraphs in the output code. For python + # wrapper, we have moved to lifting subgraphs as functions, supported by + # PythonWrapperCode `codegen_subgraph` function. We should perhaps + # support lifting of subgraphs as functions for cpp wrapper as well. + try: + self.push_codegened_graph(subgraph.graph) + self.writeline(f"// subgraph: {subgraph.name}") + self.codegen_subgraph_prefix(subgraph, outer_inputs, outer_outputs) + parent_graph = V.graph + with V.set_graph_handler(subgraph.graph): + subgraph.graph.codegen_subgraph( + parent_graph=parent_graph, + ) + self.codegen_subgraph_suffix(subgraph, outer_inputs, outer_outputs) + finally: + self.pop_codegened_graph() + + def codegen_while_loop(self, while_loop, stack_output=False): + if stack_output: + raise NotImplementedError("NYI cpp wrapper for while_loop_stack_output") + is_bool_pred = isinstance( + while_loop.cond_subgraph.graph.graph_outputs[0], ir.ShapeAsConstantBuffer + ) + name = while_loop.get_name() + outer_carried_inputs = [ + buf.codegen_reference() for buf in while_loop.carried_inputs + ] + outer_additional_inputs = [ + buf.codegen_reference() for buf in while_loop.additional_inputs + ] + cond_result_name = f"{name}_cond_result" + if is_bool_pred: + self.writeline(f"bool {cond_result_name};") + else: + self.writeline(f"RAIIAtenTensorHandle {cond_result_name};") + + cond_outer_inputs = [] + for inp, out in zip(outer_carried_inputs, while_loop.outputs): + # in ABI-compatible mode, the carried inputs are codegened + # as buffers outside the while loop and set to the initial + # values. at the end of each while_loop iteration, they + # will be assigned the carried values. + out_name = out.get_name() + self.writeline(f"AtenTensorHandle {out_name}_handle;") + self.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_assign_tensors_out({inp}, &{out_name}_handle));" + ) + self.writeline(f"RAIIAtenTensorHandle {out_name}({out_name}_handle);") + cond_outer_inputs.append(out_name) + + # additional inputs will be assigned within the while_loop + # iteration directly from the corresponding outer graph buffers + cond_outer_inputs.extend(outer_additional_inputs) + + cond_outer_outputs = [cond_result_name] + body_outer_inputs = list(cond_outer_inputs) + body_outer_outputs = body_outer_inputs[: len(outer_carried_inputs)] + + self.writeline("while (1) {") + self.writeline(EnterSubgraphLine(self, while_loop.cond_subgraph.graph)) + self.codegen_subgraph( + while_loop.cond_subgraph, cond_outer_inputs, cond_outer_outputs + ) + + if is_bool_pred: + cond_result = f"{cond_result_name}" + else: + cond_result = f"{cond_result_name}_scalar" + self.codegen_tensor_item(torch.bool, cond_result_name, cond_result) + self.writeline(f"if (!{cond_result}) break;") + + self.writeline(ExitSubgraphLine(self)) + self.writeline(EnterSubgraphLine(self, while_loop.body_subgraph.graph)) + self.codegen_subgraph( + while_loop.body_subgraph, body_outer_inputs, body_outer_outputs + ) + self.writeline(ExitSubgraphLine(self)) + self.writeline("}") + + def generate_extern_kernel_args_decl_if_needed( + self, + op_overload: Union[torch._ops.OpOverload, torch._ops.HigherOrderOperator], + raw_args: Sequence[Any], + output_args: _OUTPUT_ARGS_TYPE, + raw_outputs: Sequence[ir.Buffer], + ): + """ + Generates declarations for external kernel arguments if needed, based on the provided + operator and its arguments. It processes both input and output arguments, categorizing + them into tensor and integer arguments for further code generation. + """ + schema = None + if isinstance(op_overload, torch._higher_order_ops.torchbind.CallTorchBind): + obj = raw_args[0] + method = raw_args[1] + schema = op_overload.schema(obj, method) + else: + assert isinstance(op_overload, torch._ops.OpOverload), type(op_overload) + schema = op_overload._schema + assert schema is not None + arg_types = [x.real_type for x in schema.arguments] + return_types = [x.type for x in schema.returns] + + new_tensor_args = [] + new_int_args = [] + + def fill_args(arg, arg_type): + static_arg_types = ( + torch.FloatType, + torch.BoolType, + torch.StringType, + torch.Type, + torch.DeviceObjType, + ) + inductor_tensor_buffers = ( + ir.Buffer, + ir.ReinterpretView, + ) + + if isinstance(arg_type, torch.TensorType): + assert isinstance(arg, inductor_tensor_buffers), f"got {type(arg)}" + new_tensor_args.append(f"{arg.codegen_reference()}") + elif isinstance(arg_type, torch.IntType): + # int + new_int_args.append(str(arg)) + elif isinstance(arg_type, torch.SymIntType): + # SymInt + expr = arg.node.expr if isinstance(arg, torch.SymInt) else arg + new_int_args.append(cexpr(expr)) + elif isinstance(arg_type, torch.NumberType): + # Scalar of type int + assert isinstance(arg, (int, float, bool)) + # Only treat int Scalar as dynamic + if isinstance(arg, int): + new_int_args.append(str(arg)) + elif isinstance(arg, ir.TorchBindObject): + # torchbind objects are loaded in proxy executor + pass + elif isinstance(arg_type, torch.ListType): + assert isinstance(arg, (list, tuple)) + + # List[Tensor] + if isinstance(arg_type.getElementType(), torch.TensorType): + new_tensor_args.extend([f"{a.codegen_reference()}" for a in arg]) + # List[Optional[Tensor]] + elif isinstance( + arg_type.getElementType(), torch.OptionalType + ) and isinstance( + arg_type.getElementType().getElementType(), torch.TensorType + ): + new_tensor_args.extend( + [f"{a.codegen_reference()}" for a in arg if a is not None] + ) + # List[int] + elif isinstance(arg_type.getElementType(), torch.IntType): + new_int_args.extend([str(a) for a in arg]) + # List[SymInt] + elif isinstance(arg_type.getElementType(), torch.SymIntType): + expressions = [ + a.node.expr if isinstance(a, torch.SymInt) else a for a in arg + ] + new_int_args.extend([cexpr(expr) for expr in expressions]) + # List[Scalar] + elif isinstance(arg_type.getElementType(), torch.NumberType): + # Only treat int Scalar as dynamic + is_int_type = [isinstance(a, int) for a in arg] + if any(is_int_type): + assert all(is_int_type), ( + "AOTInductor only supports int scalars of the same type" + ) + new_int_args.extend([str(a) for a in arg]) + else: + assert isinstance( + arg_type.getElementType(), + static_arg_types, # type: ignore[arg-type] + ), ( + f"Fall through arguments must be one of static_arg_types, got {type(arg_type)}" + ) + else: + assert isinstance( + arg_type, + static_arg_types, # type: ignore[arg-type] + ), ( + f"Fall through arguments must be one of static_arg_types, got {type(arg_type)}" + ) + + for arg, arg_type in zip(raw_args, arg_types): + if arg is not None: + if isinstance(arg_type, torch.OptionalType): + fill_args(arg, arg_type.getElementType()) + else: + fill_args(arg, arg_type) + + def fill_output_arg( + arg: str, return_type: torch.JitType, is_mutated_output: bool + ) -> None: + if isinstance(return_type, torch.TensorType): + if not is_mutated_output: + self.writeline(f"AtenTensorHandle {arg}_handle; // output buffer") + self.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_new_uninitialized_tensor(&{arg}_handle));" + ) + self.writeline(f"RAIIAtenTensorHandle {arg}({arg}_handle);") + new_tensor_args.append(f"{arg}") + elif isinstance(return_type, torch.SymIntType): + raise NotImplementedError("NYI support for return type: SymInt") + elif isinstance(return_type, torch.ListType) and isinstance( + return_type.getElementType(), torch.SymIntType + ): + raise NotImplementedError("NYI support for return type: List[SymInt]") + else: + raise AssertionError(f"Unsupported return type found: {return_type}") + + # TODO: Only support None and tensor(s) returns for now, SymInt is not implemented yet + for return_type in return_types: + if isinstance( + return_type, (torch.TensorType, torch.NoneType, torch.IntType) + ): + pass + elif isinstance(return_type, torch.OptionalType): + assert isinstance(return_type.getElementType(), torch.TensorType) + elif isinstance(return_type, torch.ListType): + assert isinstance(return_type.getElementType(), torch.TensorType) + else: + raise NotImplementedError( + f"return type {return_type} is not yet supported." + ) + + for output_arg, raw_output_arg in zip(output_args, raw_outputs): # type: ignore[arg-type] + # None output is supported, but Optional return types are not yet supported + if output_arg is None: + continue + elif isinstance(raw_output_arg, int): + new_int_args.append(str(raw_output_arg)) + elif isinstance(output_arg, list): + for out in output_arg: + assert out is not None, out + fill_output_arg( + out, + torch.TensorType.get(), + isinstance(raw_output_arg, ir.MutationOutput), + ) + else: + fill_output_arg( + output_arg, + torch.TensorType.get(), + isinstance(raw_output_arg, ir.MutationOutput), + ) + + return new_tensor_args, new_int_args + + @staticmethod + def _compatible_with_stableivalue(op: torch._ops.OpOverload) -> bool: + """Returns true if op_overload._schema only utilizes types supported by the AOT + C-shim *internal* function to_ivalue. to_ivalue is an implementation detail, so + these types are not guaranteed to be supported long-term. When generating code + for cpp_wrapper mode, we don't have to be forward-compatible, so changing this + function's implementation in future is fine.""" + supported_types = ( + torch.BoolType, + torch.DeviceObjType, + torch.FloatType, + # ScalarTypeType, LayoutType, and MemoryFormatType are seen as IntType + # when queried via torch.JitType.type. + torch.IntType, + torch.TensorType, + ) + + def type_supported(t: torch.JitType) -> bool: + if isinstance(t, torch.OptionalType): + return type_supported(t.getElementType()) + return isinstance(t, supported_types) + + return all( + type_supported(a.type) + for a in chain(op._schema.arguments, op._schema.returns) + ) + + def generate_fallback_kernel_with_runtime_lookup( + self, + buf_name: str, + python_kernel_name: str, + get_args: Callable[[], Sequence[str]], + op_overload: Union[torch._ops.OpOverload, torch._ops.HigherOrderOperator], + raw_args: Sequence[Any], + outputs: Sequence[ir.Buffer], + ) -> None: + """Generate a call to a kernel not contained in the C-shim. This results in + different code paths for AOT Inductor vs cpp_wrapper Inductor mode.""" + + def extract_output_name( + out: Optional[Union[ir.Buffer, Sequence[ir.Buffer]]], + ) -> Union[Optional[str], _OUTPUT_ARGS_TYPE]: + if out is None: + return None + if isinstance(out, (ir.MultiOutput, ir._CollectiveKernel)): + return out.get_name() + if isinstance(out, ir.MutationOutput): + mutated_buf_names = out.get_mutation_names() + assert ( + isinstance(mutated_buf_names, list) and len(mutated_buf_names) == 1 + ), "Expect only one mutated buffer in MutationOutput" + return mutated_buf_names[0] + if isinstance(out, (list, tuple)): + return [extract_output_name(o) for o in out] # type: ignore[misc] + if isinstance(out, int): + return str(out) + raise AssertionError(f"Unexpected output: {type(out)}") + + if isinstance(op_overload, torch._ops.HigherOrderOperator): + assert isinstance( + op_overload, torch._higher_order_ops.torchbind.CallTorchBind + ), type(op_overload) + assert len(raw_args) > 1 + obj = raw_args[0] + method = raw_args[1] + return_schema = op_overload.schema(obj, method).returns + else: + return_schema = op_overload._schema.returns + + # output_args has the same pytree structure as outputs + if not return_schema: + # kernel does not return a value + output_args: _OUTPUT_ARGS_TYPE = [] + elif isinstance(output_name := extract_output_name(outputs), str): + output_args = [output_name] + else: + # If the schema indicates a return value, we should have a non-None value by + # this point. + assert isinstance(output_name, list), type(output_name) + output_args = output_name + + # In AOT mode, we use a ProxyExecutor to run fallback kernels. + if V.graph.aot_mode: + self.generate_fallback_kernel_with_runtime_lookup_aot( + op_overload, + raw_args, + output_args, + outputs, + ) + return + + assert isinstance(op_overload, torch._ops.OpOverload), type(op_overload) + for output in output_args: + assert output is None or isinstance(output, str), ( + "fallback kernels with runtime lookup currently only support tensor " + "returns, not more complicated types (such as list-of-list-of-tensor)" + ) + + # In non-AOT mode, we use aoti_torch_call_dispatcher if all the inputs and + # outputs of the op can be represented with StableIValue. This avoids the + # overhead of calling back into Python, and covers most remaining fallback ops. + if self._compatible_with_stableivalue(op_overload): + self.generate_fallback_kernel_with_runtime_lookup_nopython( + get_args, + op_overload, + output_args, # type: ignore[arg-type] + outputs, + ) + return + + # Otherwise, we call back into Python, which has some extra runtime overhead, + # but handles situations like list[Tensor] (currently unrepresentable via + # StableIValue). + self.generate_fallback_kernel_with_runtime_lookup_python( + buf_name, + python_kernel_name, + op_overload, + raw_args, + output_args, # type: ignore[arg-type] + outputs, + ) + + def generate_scoped_gil_acquire(self, declarations_before_scope, lines_in_scope): + scoped_lines = IndentedBuffer() + for declaration in declarations_before_scope: + scoped_lines.writeline(declaration) + + scoped_lines.writeline("{") + with scoped_lines.indent(): + scoped_lines.writeline("py::gil_scoped_acquire_simple acquire;") + scoped_lines.writelines(lines_in_scope.split("\n")) + scoped_lines.writelines("}") + return scoped_lines._lines + + def load_custom_op_wrapper(self): + # TODO: need to support control flow + if self.custom_op_wrapper_loaded: + return + + lines = """ +RAIIPyObject codecache_module(PyImport_ImportModule("torch._inductor.codecache")); +if (!codecache_module) { + throw std::runtime_error("Failed to load torch._inductor.codecache"); +} +custom_op_wrapper = PyObject_GetAttrString(codecache_module, "custom_op_wrapper"); +if (!custom_op_wrapper) { + throw std::runtime_error("Failed to load torch._inductor.codecache.custom_op_wrapper"); +}""" + + declarations_before_scope = ["RAIIPyObject custom_op_wrapper;"] + scope_gil_acquire = self.generate_scoped_gil_acquire( + declarations_before_scope, lines + ) + self.writelines(scope_gil_acquire) + + self.custom_op_wrapper_loaded = True + + def generate_float_value(self, val): + assert isinstance(val, float) + if val == float("inf"): + return "std::numeric_limits::infinity()" + elif val == float("-inf"): + return "-std::numeric_limits::infinity()" + elif math.isnan(val): + return "std::numeric_limits::quiet_NaN()" + else: + return f"{val}" + + def generate_py_arg(self, py_args_var, idx, raw_arg, arg_type): + def generate_py_arg_inner(lines, raw_arg, arg_type): + def handle_scalar(scalar): + if isinstance(scalar, int): + return f"PyLong_FromLongLong({scalar})" + if isinstance(scalar, float): + return f"PyFloat_FromDouble({self.generate_float_value(scalar)})" + if isinstance(scalar, bool): + return f"PyBool_FromLong({1 if scalar else 0})" + if isinstance(scalar, complex): + real = self.generate_float_value(scalar.real) + imag = self.generate_float_value(scalar.imag) + return f"PyComplex_FromDoubles({real}, {imag})" + if isinstance(scalar, SymTypes): + scalar_var = cexpr(scalar.node.expr) + if isinstance(scalar, torch.SymBool): + return f"PyBool_FromLong({scalar_var})" + if isinstance(scalar, torch.SymFloat): + return f"PyFloat_FromDouble({scalar_var})" + return f"PyLong_FromLongLong({scalar_var})" + raise NotImplementedError( + f"scalar {scalar}, {type(scalar)} cannot be handled by handle_scalar" + ) + + if raw_arg is None: + # Py_None is a singleton, so we have to explicitly incref it here + lines.append("Py_INCREF(Py_None);\n") + return "Py_None" + elif isinstance(arg_type, torch.TensorType): + # In some cases, scalar arguments may be passed in place of tensors. + if not hasattr(raw_arg, "codegen_reference"): + return handle_scalar(raw_arg) + + # Store AtenTensorHandle as void*. All Python args are constructed in a + # nested scope, so this handle will self-destruct after the function + # call. + base_handle = self.create_tmp_raii_handle_var_if_needed( + raw_arg.codegen_reference(), lines + ) + return f"PyCapsule_New(reinterpret_cast({base_handle}.get()), NULL, NULL)" + elif isinstance(arg_type, torch.OptionalType): + return generate_py_arg_inner(lines, raw_arg, arg_type.getElementType()) + elif isinstance(arg_type, torch.IntType): + # int + return f"PyLong_FromLongLong({raw_arg})" + elif isinstance(arg_type, torch.SymIntType): + # SymInt + expr = ( + raw_arg.node.expr if isinstance(raw_arg, torch.SymInt) else raw_arg + ) + return f"PyLong_FromLongLong({cexpr(expr)})" + elif isinstance(arg_type, torch.FloatType): + return f"PyFloat_FromDouble({self.generate_float_value(raw_arg)})" + elif isinstance(arg_type, torch.BoolType): + return f"PyBool_FromLong({1 if raw_arg else 0})" + elif isinstance(arg_type, torch.StringType): + return f'PyUnicode_FromString("{raw_arg}")' + elif isinstance(arg_type, torch.NumberType): + # Union[bool, int, float, complex] + # torch/_prims_common/__init__.py + return handle_scalar(raw_arg) + elif isinstance(raw_arg, torch.device): + device_str, device_index = self.codegen_device(raw_arg).split(", ") + return f"THPDevice_New(c10::Device(static_cast({device_str}), {device_index}))" + elif isinstance(raw_arg, torch.dtype): + return f"Py_NewRef(torch::getTHPDtype(static_cast({self.codegen_dtype(raw_arg)})))" + elif isinstance(raw_arg, torch.layout): + return f"Py_NewRef(torch::getTHPLayout(static_cast({self.codegen_layout(raw_arg)})))" + elif isinstance(raw_arg, torch.memory_format): + return ( + "Py_NewRef(torch::utils::getTHPMemoryFormat(static_cast(" + f"{self.codegen_memory_format(raw_arg)})))" + ) + else: + raise NotImplementedError( + f"arg type {arg_type} is not yet supported by custom_op_wrapper" + ) + + lines = [] + if isinstance(arg_type, torch.ListType): + assert isinstance(raw_arg, (list, tuple)), str(raw_arg) + " is not a list" + lines.append( + f"PyObject* {py_args_var}_{idx} = PyList_New({len(raw_arg)});\n" + ) + for i, elem in enumerate(raw_arg): + lines.append( + f"PyList_SetItem({py_args_var}_{idx}, {i}, {generate_py_arg_inner(lines, elem, arg_type.getElementType())});\n" + ) + lines.append( + f"PyTuple_SetItem({py_args_var}, {idx}, {py_args_var}_{idx});\n" + ) + else: + lines.append( + f"PyTuple_SetItem({py_args_var}, {idx}, {generate_py_arg_inner(lines, raw_arg, arg_type)});\n" + ) + return "".join(lines) + + def generate_fallback_kernel_with_runtime_lookup_nopython( + self, + get_args: Callable[[], Sequence[str]], + op_overload: torch._ops.OpOverload, + output_args: Sequence[Optional[str]], + raw_outputs: Sequence[ir.Buffer], + ) -> None: + """Generate fallback kernel calls with runtime (non-AOT) dispatch. This can + only be called in cpp_wrapper mode, and assumes that the input is a non-None + OpOverload. + + In the future, we may switch over to directly calling c10::Dispatcher if we need + to support more datatypes.""" + if raw_outputs: + declarations_before_scope = [ + f"RAIIAtenTensorHandle {output_arg};" + for output_arg, raw_output_arg in zip(output_args, raw_outputs) # type: ignore[arg-type] + if output_arg is not None + and not isinstance(raw_output_arg, ir.MutationOutput) + ] + else: + declarations_before_scope = [ + f"RAIIAtenTensorHandle {output_arg};" + for output_arg in output_args # type: ignore[arg-type] + if output_arg is not None + ] + + dispatch_lines = IndentedBuffer() + dispatch_lines.writelines(declarations_before_scope) + dispatch_lines.writeline("{") + + with dispatch_lines.indent(): + tmp_var_number = count() + + def parse_arg(arg_type: torch.JitType, codegen_arg: str) -> str: + # Strip off any temporary references; we're in an indented context, so + # any saved-off variables will be auto-destroyed. + new_codegen_arg = codegen_arg.removeprefix("&temporary_reference(") + if new_codegen_arg != codegen_arg: + # If we removed temporary_reference, there's a good chance the + # variable ends with get() (which would retrieve an ATenTensorHandle + # from a temporary RAII handle). Strip that off too, since we're + # going to save this in a temporary RAII handle. + if codegen_arg.endswith(".get())"): + codegen_arg = new_codegen_arg.removesuffix(".get())") + else: + codegen_arg = new_codegen_arg.removesuffix(")") + + if isinstance(arg_type, torch.OptionalType): + # If we have a pointer to a variable, strip it off and let + # from handle any internal pointers. + codegen_arg = codegen_arg.removeprefix("&") + + if codegen_arg == "nullptr": + return "torch::stable::detail::from(std::nullopt)" + + var_name = f"tmp_var_{next(tmp_var_number)}" + dispatch_lines.writeline( + f"std::optional {var_name}{{{parse_arg(arg_type.getElementType(), codegen_arg)}}};" + ) + return f"torch::stable::detail::from({var_name})" + + raii_var = self.create_tmp_raii_handle_var_if_needed( + codegen_arg, dispatch_lines + ) + temp_handle = raii_var != codegen_arg + + if isinstance(arg_type, torch.TensorType): + if not temp_handle: + # If the RAII tensor being referenced _isn't_ a temporary, + # scoped to this fallback call, then create a new handle + # referencing it which from can steal. + var_name = f"tmp_var_{next(tmp_var_number)}" + dispatch_lines.writeline(f"AtenTensorHandle {var_name};") + dispatch_lines.writeline( + f"aoti_torch_new_tensor_handle({raii_var}, &{var_name});" + ) + return f"torch::stable::detail::from({var_name})" + # If the RAII tensor _is_ a temporary scoped to this fallback call, + # simply release and steal the handle. + return f"torch::stable::detail::from({raii_var}.release())" + return f"torch::stable::detail::from({codegen_arg})" + + codegen_args = get_args() + ivalue_args = ( + parse_arg(a.type, c) + for a, c in zip(op_overload._schema.arguments, codegen_args) + ) + array_len = max(len(codegen_args), len(output_args)) + dispatch_lines.writeline( + f"std::array dispatch_vars{{{', '.join(ivalue_args)}}};" + ) + dispatch_lines.writeline("AOTI_TORCH_ERROR_CODE_CHECK(") + with dispatch_lines.indent(): + dispatch_lines.writeline( + f'aoti_torch_call_dispatcher("{op_overload._schema.name}", "{op_overload._schema.overload_name}", dispatch_vars.data())' # noqa: B950 + ) + dispatch_lines.writeline(");") + + if len(output_args) == 1 and (output := output_args[0]) is not None: + # result is a single tensor + dispatch_lines.writeline( + f"{output} = torch::stable::detail::to(dispatch_vars[0]);" + ) + else: + # result is a tuple of tensors + for idx, output_arg in enumerate(output_args): + if output_arg is None: + continue + dispatch_lines.writeline( + f"{output_arg} = torch::stable::detail::to(dispatch_vars[{idx}]);" + ) + + dispatch_lines.writeline("}") + self.writelines(dispatch_lines.getvalue().splitlines()) + + def generate_fallback_kernel_with_runtime_lookup_python( + self, + buf_name: str, + python_kernel_name: str, + op_overload: torch._ops.OpOverload, + raw_args: Sequence[Any], + output_args: Sequence[Optional[str]], + raw_outputs: Sequence[ir.Buffer], + ) -> None: + """Generate fallback kernel calls with runtime (non-AOT) dispatch. This can + only be called in cpp_wrapper mode, and assumes that the input is a non-None + OpOverload. + + This function calls into Python to dispatch, which allows it to handle datatypes + that cannot be contained in StableIValue, at the cost of some performance.""" + self.load_custom_op_wrapper() + + num_args = len(raw_args) + py_args_var = f"py_args_{next(self.arg_var_id)}" + # First arg is always the python op name + lines = textwrap.dedent( + f""" + RAIIPyObject {py_args_var}(PyTuple_New({num_args + 1})); + if (!{py_args_var}) {{ + throw std::runtime_error("PyTuple_New {py_args_var} failed"); + }} + PyTuple_SetItem({py_args_var}, 0, PyUnicode_FromString("{python_kernel_name}")); + """ + ) + + for idx, (raw_arg, schema_arg) in enumerate( + zip(raw_args, op_overload._schema.arguments) + ): + lines += self.generate_py_arg( + py_args_var, idx + 1, raw_arg, schema_arg.real_type + ) + + lines += textwrap.dedent( + f""" + // Call the custom op in Python + RAIIPyObject py_{buf_name}(PyObject_CallObject(custom_op_wrapper, {py_args_var})); + if (!py_{buf_name}) {{ + if (PyErr_Occurred()) {{ + return; + }} + throw std::runtime_error("PyObject_CallObject {python_kernel_name} failed"); + }} + """ + ) + + if len(output_args) == 1 and (output := output_args[0]) is not None: + # result is a single tensor + lines += f"{output} = reinterpret_cast(PyCapsule_GetPointer(py_{buf_name}.get(), NULL));\n" + else: + # result is a tuple of tensors + for idx, output_arg in enumerate(output_args): + if output_arg is None: + continue + lines += f"{output_arg} = reinterpret_cast(PyCapsule_GetPointer(PyList_GET_ITEM(py_{buf_name}.get(), {idx}), NULL));\n" # noqa: B950 + + if raw_outputs: + declarations_before_scope = [ + f"RAIIAtenTensorHandle {output_arg};" + for output_arg, raw_output_arg in zip(output_args, raw_outputs) # type: ignore[arg-type] + if output_arg is not None + and not isinstance(raw_output_arg, ir.MutationOutput) + ] + else: + declarations_before_scope = [ + f"RAIIAtenTensorHandle {output_arg};" + for output_arg in output_args # type: ignore[arg-type] + if output_arg is not None + ] + scope_gil_acquire = self.generate_scoped_gil_acquire( + declarations_before_scope, lines + ) + self.writelines(scope_gil_acquire) + + def generate_fallback_kernel_with_runtime_lookup_aot( + self, + op_overload: Union[torch._ops.OpOverload, torch._ops.HigherOrderOperator], + raw_args: Sequence[Any], + output_args: _OUTPUT_ARGS_TYPE, + raw_outputs: Sequence[ir.Buffer], + ) -> None: + ( + tensor_call_args, + int_call_args, + ) = self.generate_extern_kernel_args_decl_if_needed( + op_overload, + raw_args, + output_args, + raw_outputs, + ) + # force both temporary arrays to generate mutable data pointers, since the proxy + # executor signature requires that datatype + int_call_str = self._generate_temporary_array_pointer( + "int64_t", int_call_args, force_mutable=True + ) + tensor_call_str = self._generate_temporary_array_pointer( + "AtenTensorHandle", tensor_call_args, force_mutable=True + ) + + extern_kernel_node_index = len(V.extern_kernel_nodes) - 1 + self.writeline( + f"aoti_torch_proxy_executor_call_function(proxy_executor, " + f"{extern_kernel_node_index}, " + f"{len(int_call_args)}, " + f"{int_call_str}, " + f"{len(tensor_call_args)}, " + f"{tensor_call_str});" + ) + + def generate_reset_kernel_saved_flags(self): + pass + + def generate_save_uncompiled_kernels(self): + pass + + def c_type_for_prim_type(self, val, type_) -> str: + if isinstance(type_, torch.OptionalType): + return f"{self.c_type_for_prim_type(val, type_.getElementType())}*" + elif isinstance(type_, torch.TensorType): + return "AtenTensorHandle" + elif isinstance(type_, (torch.IntType, torch.SymIntType)): + return "int64_t" + elif isinstance( + type_, (torch.BoolType, torch.SymBoolType, torch.EnumType) + ) or repr(type_) in ("Layout", "MemoryFormat", "ScalarType"): + return "int32_t" + elif isinstance(type_, torch.FloatType): + return "double" + elif isinstance(type_, torch.NumberType): + if isinstance(val, bool): + return "int32_t" + elif isinstance(val, (int, float)): + return "double" + elif val is None: + # This could happen when val is an optional value + return "double" + else: + raise AssertionError( + f"Unexpected type in c_type_for_prim_type: {type_=}" + ) + elif isinstance(type_, torch.StringType): + return "const char*" + else: + raise AssertionError(f"Unexpected type in c_type_for_prim_type: {type_=}") + + def val_to_arg_str_for_prim_type(self, val, type_) -> str: + # TODO: not using type_ as the first step of refactoring. Will update this later. + if isinstance(val, bool): + return "1" if val else "0" + elif isinstance(val, int): + # uint64_t is long on Linux, but long long on MacOS and Windows + return f"{val}LL" if sys.platform in ["darwin", "win32"] else f"{val}L" + elif isinstance(val, complex): + return f"c10::complex{{ {self.generate_float_value(val.real)}, {self.generate_float_value(val.imag)} }}" + elif isinstance(val, str): + return f'"{val}"' + elif isinstance( + val, (ir.Buffer, ir.ReinterpretView, ir.StorageBox, ir.TensorBox) + ): + return val.codegen_reference() + elif isinstance(val, torch.device): + return self.codegen_device(val) + elif isinstance(val, torch.dtype): + return self.codegen_dtype(val) + elif isinstance(val, torch.layout): + return self.codegen_layout(val) + elif isinstance(val, torch.memory_format): + return self.codegen_memory_format(val) + elif isinstance(val, float): + return self.generate_float_value(val) + elif isinstance(val, (list, tuple)): + # FIXME: This happens because type_ is not always properly set to torch.ListType + return f"{{{', '.join(self.val_to_arg_str(x, None) for x in val)}}}" + elif isinstance(val, SymTypes): + return cexpr(val.node.expr) + elif isinstance(val, sympy.Expr): + return cexpr(val) + else: + return repr(val) + + def val_to_arg_str(self, val, type_=None) -> str: + if val is None: + # None needs special care. It either represent nullopt or an empty tensor + if type_ is None or isinstance(type_, torch.OptionalType): + if type_ is not None and isinstance( + type_.getElementType(), + ( + torch.DeviceObjType, + torch.ListType, + torch.TupleType, + ), + ): + return "nullptr, 0" + return "nullptr" + + if isinstance(type_, torch.TensorType): + # create an empty tensor, the equivalent of at::Tensor() + var_name = f"var_{next(self.arg_var_id)}" + self.writeline(f"AtenTensorHandle {var_name}_handle;") + self.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_new_uninitialized_tensor(&{var_name}_handle));" + ) + self.writeline(f"RAIIAtenTensorHandle {var_name}({var_name}_handle);") + return var_name + + raise AssertionError("Can not map None to a known data type") + + if isinstance(type_, torch.OptionalType): + element_type = type_.getElementType() + arg_str = self.val_to_arg_str(val, element_type) + # Handle optional iterables as a special case. Utilize the + # temporary_reference function to avoid saving them off and increasing + # memory usage. + if isinstance(element_type, (torch.ListType, torch.TupleType)): + main_value, aux = arg_str.rsplit(", ", maxsplit=1) + return f"&temporary_reference({main_value}), {aux}" + + # Handle optional tensors as a special case, as above. + if isinstance(element_type, torch.TensorType): + base_handle = self.val_to_arg_str(val, element_type) + return f"&temporary_reference({base_handle}.get())" + + var_name = f"var_{next(self.arg_var_id)}" + if isinstance(element_type, torch.DeviceObjType): + main_value, aux = arg_str.rsplit(", ", maxsplit=1) + self.writeline(f"auto {var_name} = {main_value};") + return f"&{var_name}, {aux}" + + self.writeline( + f"{self.c_type_for_prim_type(val, element_type)} {var_name} = {arg_str};" + ) + return f"&{var_name}" + + if isinstance(type_, (torch.ListType, torch.TupleType)): + assert isinstance(val, (list, tuple)), ( + f"{val} does not match with arg type {type_}" + ) + element_type = type_.getElementType() + + if len(val) == 0: + # Zero-size array is not supported in the C or C++ standard, so return a + # nullptr. + return "nullptr, 0" + + result = [self.val_to_arg_str(x, element_type) for x in val] + if isinstance(element_type, torch.TensorType): + result = [f"{t}.get()" for t in result] + + c_type = self.c_type_for_prim_type(val[0], element_type) + # see the comment in self._generate_temporary_array_pointer for an + # explanation of why this c_type gets modified + if isinstance(element_type, torch.OptionalType) and not c_type.startswith( + "const" + ): + c_type = f"const {c_type}" + + # need to pass the array length, because we can't use the std::array member + # function + return ( + f"{self._generate_temporary_array_pointer(c_type, result)}, {len(val)}" + ) + + val_is_scalar = isinstance(val, (bool, complex, float, int, *SymTypes)) + if isinstance(type_, torch.TensorType) and val_is_scalar: + val_str = self.val_to_arg_str_for_prim_type(val, None) + return self.codegen_scalar_to_tensor(val_str) + + return self.val_to_arg_str_for_prim_type(val, type_) + + def create_tmp_raii_handle_var_if_needed( + self, handle: str, writer: Optional[Union[HasWriteLine, list[str]]] = None + ) -> str: + """If the input handle is an rvalue RAII tensor, creates an lvalue variable for + it in writer. Returns a variable name that can be used to access handle.""" + if not handle.startswith( + ( + "borrow_arrayref_tensor_as_tensor(", + "copy_arrayref_tensor_to_tensor(", + "wrap_with_raii_handle_if_needed(", + "RAIIAtenTensorHandle(", + ) + ): + return handle + + tmp_var_name = f"var_{next(self.arg_var_id)}" + call_str = f"auto {tmp_var_name} = {handle};" + + writer = writer if writer is not None else self + if isinstance(writer, list): + writer.append(call_str) + else: + writer.writeline(call_str) + + return tmp_var_name + + def write_kernel_context_guard_begin( + self, + ): + # Beginning of a kernel context guarded block. + # The block looks like this: + # { + # KernelContextGuard _ctx("{kernel_name}", {stack_trace_str}); + # ... operations... + # } + self.writeline("{") + + def write_kernel_context_guard_end( + self, + ): + # End of a kernel context guarded block. + self.writeline("}") + + def write_kernel_context_guard( + self, + kernel_name: str, + node_schedule: Union[Sequence[BaseSchedulerNode], ExternKernel], + ): + def aggregate_stack_traces( + node_schedule: Union[Sequence[BaseSchedulerNode], ExternKernel], + ) -> OrderedSet[str]: + if isinstance(node_schedule, list): + return functools.reduce( + lambda a, b: a | b, + [ + # pyrefly: ignore [missing-attribute] + node.node.get_stack_traces() + for node in node_schedule + if hasattr(node, "node") and node.node + ], + OrderedSet(), + ) + elif isinstance(node_schedule, ExternKernel): + return node_schedule.get_stack_traces() + else: + return OrderedSet() + + stack_trace_str = 'R"(' + stack_traces = aggregate_stack_traces(node_schedule) + + for stack_trace in stack_traces: + for line in stack_trace.split("\n"): + stack_trace_str += f"\n{line}" + stack_trace_str += "\n" + stack_trace_str += ')"' + self.writeline(f'KernelContextGuard _ctx("{kernel_name}", {stack_trace_str});') diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_wrapper_cpu_array_ref.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_wrapper_cpu_array_ref.py new file mode 100644 index 0000000000000000000000000000000000000000..c0c9aef609ba483ad9178f0653f52a20b1b2ea2f --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_wrapper_cpu_array_ref.py @@ -0,0 +1,897 @@ +# mypy: allow-untyped-defs +from collections.abc import Callable, Sequence +from typing import Any, Optional, Union + +import sympy + +import torch +import torch._inductor.async_compile # noqa: F401 required to warm up AsyncCompile pools +import torch._ops + +from .. import config, ir +from ..utils import sympy_product +from ..virtualized import V +from .cpp_utils import DTYPE_TO_CPP +from .cpp_wrapper_cpu import CppWrapperCpu +from .wrapper import ( + BufferLike, + EnterSubgraphLine, + ExitSubgraphLine, + MemoryPlanningLine, + MemoryPlanningState, + PythonWrapperCodegen, +) + + +BufferName = str + +# Default thread stack sizes vary by platform: +# - Linux: 8 MB +# - macOS: 512 KB +# - Windows: 1 MB +# Just pick something comfortably smaller than the smallest for now. +MAX_STACK_ALLOCATION_SIZE = 1024 * 100 + + +class CppWrapperCpuArrayRef(CppWrapperCpu): + """ + Generates cpp wrapper for running on CPU and calls cpp kernels + + This class is forked from CppWrapperCpu, with a difference that tensors may be + represented as ArrayRef, see torch/csrc/inductor/aoti_runtime/arrayref_tensor.h + """ + + def __init__(self): + super().__init__() + assert self.device == "cpu", "ArrayRefTensor only supported on CPU!" + self.allow_stack_allocation = config.aot_inductor.allow_stack_allocation + self.stack_allocated_buffers: dict[BufferName, BufferLike] = {} + + @staticmethod + def create( + is_subgraph: bool, + subgraph_name: Optional[str], + parent_wrapper: Optional[PythonWrapperCodegen], + partition_signatures: Optional[ir.GraphPartitionSignature] = None, + ): + # TODO - support subgraph codegen by lifting functions. Check the + # comment at CppWrapperCpu `codegen_subgraph` function. + return CppWrapperCpuArrayRef() + + @staticmethod + def get_input_cpp_type(input): + assert config.aot_inductor.use_minimal_arrayref_interface + + if isinstance(input, sympy.Expr): + from ..graph import may_get_constant_buffer_dtype + + dtype = may_get_constant_buffer_dtype(input) + assert dtype is not None, f"Failed to get the dtype of sympy.Expr: {input}" + return DTYPE_TO_CPP[dtype] + return f"ArrayRefTensor<{DTYPE_TO_CPP[input.get_dtype()]}>" + + @staticmethod + def get_device_include_path(device: str) -> str: + assert device == "cpu", "ArrayRef only supported on CPU!" + if V.graph.aot_mode: + return "#include " + return "#include " + + def codegen_input_numel_asserts(self): + for name, buf in V.graph.graph_inputs.items(): + if isinstance(buf, sympy.Expr): + continue + + # comparing strides for 0 size tensor is tricky. Ignore them for now. + if sympy_product(buf.get_size()) == 0: + continue + numel = buf.get_numel() + self.prefix.writeline(f"assert_numel({name}, {numel});") + + def generate_extern_kernel_alloc(self, *args, **kwargs): + # Disable stack allocation for extern kernels. + self.allow_stack_allocation = False + super().generate_extern_kernel_alloc(*args, **kwargs) + + def generate_extern_kernel_out(self, *args, **kwargs): + # Disable stack allocation for extern kernels. + self.allow_stack_allocation = False + super().generate_extern_kernel_out(*args, **kwargs) + + def generate_fallback_kernel(self, node: ir.FallbackKernel) -> None: + # Disable stack allocation for extern kernels. + self.allow_stack_allocation = False + super().generate_fallback_kernel(node) + + def _generate_kernel_call_helper( + self, + kernel_name: str, + call_args, + *, + device=None, + triton=True, + arg_types=None, + raw_keys=None, + raw_args=None, + triton_meta=None, + graph_name="", + original_fxnode_name=None, + ): + """ + Generates kernel call code. + + triton: Defines whether the GPU backend uses Triton for codegen. + Otherwise it uses the CUDA language for codegen. + Only valid when cuda == True. + """ + assert not triton, ( + "CppWrapperCpuArrayRef.generate_kernel_call does not support GPU" + ) + assert arg_types is not None and len(call_args) == len(arg_types), ( + "Mismatch call_args and arg_types in generate_kernel_call" + ) + new_args = [] + for idx, arg in enumerate(call_args): + if "*" in arg_types[idx]: + var_name = f"var_{next(self.arg_var_id)}" + self.writeline(f"auto* {var_name} = get_data_ptr_wrapper({arg});") + new_args.append(f"({arg_types[idx]})({var_name})") + else: + # arg is a scalar + new_args.append(arg) + # debug printer related logic for cpp kernel type. + debug_printer_manager = V.graph.wrapper_code.debug_printer + debug_printer_manager.set_printer_args( + call_args, + kernel_name, + None, + None, + "cpp", + ) + with debug_printer_manager: + self.writeline(self.wrap_kernel_call(kernel_name, new_args)) + + def write_wrapper_decl(self): + inputs_len = len(V.graph.graph_inputs.keys()) + if V.graph.aot_mode: + if ( + config.aot_inductor.use_minimal_arrayref_interface + and not V.graph.is_const_graph + ): + input_cpp_types = ", ".join( + f"{CppWrapperCpuArrayRef.get_input_cpp_type(x)}" + for x in V.graph.graph_inputs.values() + ) + output_arrayref_types = ", ".join( + f"ArrayRefTensor<{DTYPE_TO_CPP[x.get_dtype()]}>" + for x in V.graph.graph_outputs + ) + + self.prefix.splice( + f""" + using AOTInductorModelInputs = std::tuple<{input_cpp_types}>; + using AOTInductorModelOutputs = std::tuple<{output_arrayref_types}>; + """ + ) + + if V.graph.const_module: + self.header.splice(V.graph.const_module.wrapper_code.header) + + assert V.graph.const_wrapper_code is not None + self.prefix.splice(V.graph.const_wrapper_code) + + assert V.graph.const_kernel_code is not None + self.kernel_declarations.splice(V.graph.const_kernel_code) + + if V.graph.is_const_graph: + self.prefix.splice( + """ + void AOTInductorModel::_const_run_impl( + std::vector& output_handles, + DeviceStreamType stream, + AOTIProxyExecutorHandle proxy_executor + ) { + """ + ) + else: + if not config.aot_inductor.use_runtime_constant_folding: + # If we do not split the constant graph, we'll just create + # an empty implementation when wrapping the main module. + self.prefix.splice( + """ + void AOTInductorModel::_const_run_impl( + std::vector& output_handles, + DeviceStreamType stream, + AOTIProxyExecutorHandle proxy_executor + ) {} + + """ + ) + + run_impl_proto = """ + void AOTInductorModel::run_impl( + AtenTensorHandle* + input_handles, // array of input AtenTensorHandle; handles + // are stolen; the array itself is borrowed + AtenTensorHandle* + output_handles, // array for writing output AtenTensorHandle; handles + // will be stolen by the caller; the array itself is + // borrowed + DeviceStreamType stream, + AOTIProxyExecutorHandle proxy_executor + ) { + """ + + self.generate_input_output_runtime_checks() + run_impl_proto += """ + __check_inputs_outputs(input_handles, output_handles); + """ + + if config.aot_inductor.use_minimal_arrayref_interface: + self.prefix.splice( + """ + template <> + AOTInductorModelOutputs AOTInductorModel::run_impl_minimal_arrayref_interface< + AOTInductorModelInputs, AOTInductorModelOutputs>( + const AOTInductorModelInputs& inputs, + DeviceStreamType stream, + AOTIProxyExecutorHandle proxy_executor + ) { + """ + ) + self.suffix.splice(run_impl_proto) + self.suffix.splice( + """ + AOTInductorModelInputs inputs; + convert_handles_to_inputs(input_handles, inputs); + auto outputs = run_impl_minimal_arrayref_interface( + inputs, stream, proxy_executor); + // NOTE: outputs is full of ArrayRef to thread_local storage. If in the future we need this + // interface to perform well for a DSO using the minimal arrayref interface, all we need + // to do is provide ThreadLocalCachedTensor for each one! + convert_outputs_to_handles(outputs, output_handles); + } + """ + ) + + self.suffix.splice( + """ + extern "C" AOTIRuntimeError AOTInductorModelRunMinimalArrayrefInterface( + AOTInductorModelHandle model_handle, + const AOTInductorModelInputs& inputs, + AOTInductorModelOutputs& outputs) { + auto model = reinterpret_cast(model_handle); + CONVERT_EXCEPTION_TO_ERROR_CODE({ + outputs = model->run_impl_minimal_arrayref_interface( + inputs, + (torch::aot_inductor::DeviceStreamType)nullptr, + nullptr); + }) + } + """ + ) + else: + self.prefix.splice(run_impl_proto) + else: + # cpp entry function for JIT with cpp wrapper + self.prefix.splice( + """ + void inductor_entry_impl( + AtenTensorHandle* + input_handles, // array of input AtenTensorHandle; handles + // are stolen; the array itself is borrowed + AtenTensorHandle* + output_handles // array for writing output AtenTensorHandle; handles + // will be stolen by the caller; the array itself is + // borrowed) + ) { + """ + ) + with self.prefix.indent(): + # assign inputs and outputs in both cases so the later codegen can be simplified + if not config.aot_inductor.use_minimal_arrayref_interface: + if not V.graph.is_const_graph: + if V.graph.aot_mode: + num_args = len(V.graph.graph_inputs) + else: + # Weights are promoted in the JIT mode + num_args = len(V.graph.graph_inputs) + len(V.graph.constants) + # release GIL to support multiple instances inference (in different threads of the same process) + self.prefix.splice("py::gil_scoped_release_simple release;") + + self.prefix.splice( + f""" + auto inputs = steal_from_raw_handles_to_raii_handles(input_handles, {num_args}); + """ + ) + + if inputs_len != 0: + for idx, input_key in enumerate(V.graph.graph_inputs.keys()): + if config.aot_inductor.use_minimal_arrayref_interface: + self.prefix.writeline( + f"auto {input_key} = std::get<{idx}>(inputs);" + ) + continue + # unwrap input tensor back to scalar + if isinstance(V.graph.graph_inputs[input_key], sympy.Expr): + from ..graph import may_get_constant_buffer_dtype + + dtype = may_get_constant_buffer_dtype( + V.graph.graph_inputs[input_key] # type: ignore[arg-type] + ) + assert dtype is not None, ( + "Fails to get the dtype of the sympy.Expr" + ) + self.codegen_tensor_item( + dtype, f"inputs[{idx}]", input_key, self.prefix + ) + else: + self.prefix.writeline( + f"auto {input_key} = std::move(inputs[{idx}]);" + ) + + assert all( + isinstance(v, torch.Tensor) for v in list(V.graph.constants.values()) + ), "Expect all constants to be Tensor" + for idx, constants_key in enumerate(V.graph.constants.keys()): + if V.graph.aot_mode: + # Weights are stored in constants_ and owned by RAIIAtenTensorHandle there. + # Don't call std::move here because it will cause constants_ to lose the ownership. + self.prefix.writeline( + f"""auto {constants_key} = constants_->at({idx});""" + ) + else: + # Append constants as inputs to the graph + constants_idx = inputs_len + idx + self.prefix.writeline( + f"auto {constants_key} = std::move(inputs[{constants_idx}]);" + ) + + self.codegen_inputs() + + if V.graph.aot_mode: + if not V.graph.is_const_graph: + if config.aot_inductor.use_minimal_arrayref_interface: + # TODO: input shape checking for regular tensor interface as well? + self.codegen_input_numel_asserts() + else: + self.prefix.writeline("inputs.clear();") + self.prefix.writeline( + "[[maybe_unused]] auto& kernels = static_cast(*this->kernels_.get());" + ) + + def generate_return(self, output_refs: list[str]): + cst_names = V.graph.constants.keys() + arr_iface = ( + not V.graph.is_const_graph + and config.aot_inductor.use_minimal_arrayref_interface + ) # For brevity. + + def use_thread_local_cached_output_tensor(idx, output): + cached_output_name = f"cached_output_{next(self.cached_output_id)}" + cache_type = "Array" if arr_iface else "Tensor" + self.wrapper_call.writeline( + f"thread_local ThreadLocalCachedOutput{cache_type}> " + f"{cached_output_name}({output});" + ) + if arr_iface: + self.wrapper_call.writeline( + f"{cached_output_name}.copy_data_from({output});" + ) + output_entry = f"std::get<{idx}>(output_arrayref_tensors)" + element_type = f"std::decay_t" + self.wrapper_call.writeline( + f"{output_entry} = {cached_output_name}.arrayref_tensor<{element_type}>();" + ) + else: + self.wrapper_call.writeline( + f"{cached_output_name}.copy_data_from({output});" + ) + self.wrapper_call.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_new_uninitialized_tensor(&output_handles[{idx}]));" + ) + self.wrapper_call.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_assign_tensors({cached_output_name}.tensor(), " + f"output_handles[{idx}]));" + ) + + if arr_iface: + self.wrapper_call.writeline( + "AOTInductorModelOutputs output_arrayref_tensors;" + ) + + output2idx: dict[str, int] = {} + for idx, output in enumerate(output_refs): + if output == "nullptr": + continue + + is_constant_buffer = output in cst_names + output_buffer = V.graph.graph_outputs[idx] + if isinstance(output_buffer, ir.BaseView): + output_storage = output_buffer.unwrap_view() + assert isinstance(output_storage, (ir.BaseView, ir.MutableBox)) + if isinstance(output_storage.data, ir.ConstantBuffer): + is_constant_buffer = True + + if isinstance(output_buffer, ir.ShapeAsConstantBuffer): + # Need to wrap scalar into tensor as the main function returns a vector of tensors + output_tensor = self.codegen_scalar_to_tensor(output) + self.wrapper_call.writeline( + f"output_handles[{idx}] = {output_tensor}.release();" + ) + continue + + output_is_tensor_handle_expr = ( + f"std::is_same_v," + "RAIIAtenTensorHandle> || " + f"std::is_same_v," + "AtenTensorHandle> || " + f"std::is_same_v," + "ConstantHandle>" + ) + self.wrapper_call.writeline( + f"if constexpr ({output_is_tensor_handle_expr}) {{" + ) + with self.wrapper_call.indent(): + if arr_iface: + cached_output_name = f"cached_output_{next(self.cached_output_id)}" + self.wrapper_call.writeline( + f"thread_local RAIIAtenTensorHandle {cached_output_name};" + ) + if is_constant_buffer: + # NOTE(return_constant): In some rare cases where we return + # a constant, we have to return a copy of this constant, + # because (1) constants are not owned by the Model instance + # (2) constants remain the same cross inference runs, + # assuming they are not updated at runtime Basically, we + # cannot release or transfer the ownership of any original + # constant to the user. + self.wrapper_call.writeline( + f"AtenTensorHandle {cached_output_name}_tmp;" + ) + self.wrapper_call.writeline( + f"aoti_torch_clone({output}, &{cached_output_name}_tmp);" + ) + self.wrapper_call.writeline( + f"{cached_output_name} = {cached_output_name}_tmp;" + ) + else: + self.wrapper_call.writeline( + f"{cached_output_name} = {output}.release();" + ) + self.wrapper_call.writeline( + f"convert_handle_to_arrayref_tensor({cached_output_name}, " + f"std::get<{idx}>(output_arrayref_tensors));" + ) + else: + if is_constant_buffer: + # See NOTE(return_constant) above. + self.wrapper_call.writeline( + f"aoti_torch_clone({output}, &output_handles[{idx}]);" + ) + else: + if output in output2idx: + src_idx = output2idx[output] + self.wrapper_call.writeline( + f"output_handles[{idx}] = output_handles[{src_idx}];" + ) + else: + self.wrapper_call.writeline( + f"output_handles[{idx}] = {output}.release();" + ) + self.wrapper_call.writeline("} else {") + with self.wrapper_call.indent(): + use_thread_local_cached_output_tensor(idx, output) + self.wrapper_call.writeline("}") + + if output not in output2idx: + output2idx[output] = idx + if arr_iface: + self.wrapper_call.writeline("return output_arrayref_tensors;") + + def memory_plan(self): + from .memory_planning import MemoryPlanner + + self.lines = MemoryPlanner(self).plan(self.lines) + # TODO: integrate memory planning & stack allocation? + self.allow_stack_allocation = False + + def memory_plan_reuse(self): + out_names = V.graph.get_output_names() + + while ( + self.lines + and isinstance(self.lines[-1], MemoryPlanningLine) + # TODO: this seems legit, NullLine has no node + and self.lines[-1].node.name not in out_names # type: ignore[attr-defined] + ): + # these lines will be pointless + self.lines.pop() + + # codegen allocations in two passes + planning_states = [MemoryPlanningState()] + past_planning_states = [] + for i in range(len(self.lines)): + line = self.lines[i] + if isinstance(line, MemoryPlanningLine): + self.lines[i] = line.plan(planning_states[-1]) + elif isinstance(line, EnterSubgraphLine): + planning_states.append(MemoryPlanningState()) + elif isinstance(line, ExitSubgraphLine): + past_planning_states.append(planning_states.pop()) + past_planning_states.append(planning_states.pop()) + assert len(planning_states) == 0 + + # conservatively use the sum of all allocated buffer sizes + # in potentially nested scopes as the total allocated size + total_allocated_buffer_size = sum( + s.total_allocated_buffer_size for s in past_planning_states + ) + + self.allow_stack_allocation = ( + self.allow_stack_allocation is not False + and config.aot_inductor.allow_stack_allocation + and total_allocated_buffer_size <= MAX_STACK_ALLOCATION_SIZE + ) + + def can_stack_allocate_buffer(self, buffer): + return ( + self.allow_stack_allocation + and buffer.get_device().type == "cpu" + and self.can_prove_buffer_has_static_shape(buffer) + and ir.is_contiguous_strides_for_shape( + buffer.get_stride(), buffer.get_size() + ) + ) + + def make_buffer_free(self, buffer): + return ( + "" + if isinstance(buffer.get_output_spec(), ir.MultiOutputLayout) + or (V.graph.aot_mode and buffer.get_name() in self.stack_allocated_buffers) + or ( + config.aot_inductor.use_minimal_arrayref_interface + and V.graph.aot_mode + and buffer.get_name() in V.graph.graph_inputs + ) + else f"{buffer.get_name()}.reset();" + ) + + def make_buffer_allocation(self, buffer): + return self.make_allocation( + buffer.get_name(), + buffer.get_device(), + buffer.get_dtype(), + buffer.get_size(), + buffer.get_stride(), + buffer if self.can_stack_allocate_buffer(buffer) else None, + buffer.get_is_pinned(), + ) + + def make_allocation( + self, + name, + device, + dtype, + shape, + stride, + buffer_if_can_stack_allocate=None, + is_pinned=False, + ): + orig_stride = stride + device_str = self.codegen_device(device) + dtype_code = self.codegen_dtype(dtype) + size = self.codegen_shape_tuple(shape) + stride = self.codegen_shape_tuple(orig_stride) + size_array_var = self.codegen_int_array_var( + size, + self.wrapper_call.writeline, + known_statically=self.is_statically_known_list_of_ints(shape), + graph=self.get_codegened_graph(), + ) + stride_array_var = self.codegen_int_array_var( + stride, + self.wrapper_call.writeline, + known_statically=self.is_statically_known_list_of_ints(orig_stride), + graph=self.get_codegened_graph(), + ) + device_type, device_id = device_str.split(",") + device_idx = "this->device_idx_" if V.graph.aot_mode else device_id + if buffer_if_can_stack_allocate is not None: + self.stack_allocated_buffers[name] = buffer_if_can_stack_allocate + cpp_type = DTYPE_TO_CPP[dtype] + numel = buffer_if_can_stack_allocate.get_numel() + # Note: we don't zero storage because empty_strided doesn't zero either. + self.wrapper_call.writeline(f"{cpp_type} {name}_storage[{numel}];") + args = [ + f"{name}_storage", + size_array_var, + stride_array_var, + device_type, + device_idx, + ] + return f"ArrayRefTensor<{cpp_type}> {name}({', '.join(args)});" + + args = [ + str(len(shape)), + size_array_var, + stride_array_var, + dtype_code, + device_type, + device_idx, + f"&{name}_handle", + ] + + self.wrapper_call.writeline(f"AtenTensorHandle {name}_handle;") + pinned_str = "_pinned" if is_pinned else "" + self.wrapper_call.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_empty_strided{pinned_str}({', '.join(args)}));" + ) + + return f"RAIIAtenTensorHandle {name}({name}_handle);" + + def make_buffer_reuse(self, old: BufferLike, new: BufferLike, delete_old: bool): + assert old.get_dtype() == new.get_dtype() + old_name = old.get_name() + new_name = new.get_name() + del_line = ";" + if old_name not in V.graph.get_output_names() and delete_old: + del_line = f"; {self.make_buffer_free(old)}" + + if old.get_size() == new.get_size() and old.get_stride() == new.get_stride(): + if old_name in self.stack_allocated_buffers: + self.stack_allocated_buffers[new_name] = new + return self.codegen_exact_buffer_reuse(old_name, new_name, del_line) + + reinterpret_view = self.codegen_reinterpret_view( + old, new.get_size(), new.get_stride(), 0, self.wrapper_call.writeline + ) + if reinterpret_view in self.stack_allocated_buffers: + self.stack_allocated_buffers[new_name] = new + # The only way to get into this case is via an exact buffer reuse, since all + # other options result in a new tensor handle. + return self.codegen_exact_buffer_reuse(old_name, new_name, del_line) + return f"{self.declare}{new_name} = {reinterpret_view}{del_line} // reuse" + + def _assert_safe_to_use_borrow_arrayref_tensor_as_tensor(self): + # Borrowing arguments to shim functions is only safe because we know + # that the arguments can't be stack-allocated. Otherwise, to be sure + # we can't return a dangling pointer, we need to either 1) be + # certain that the shim function cannot return an alias of a + # borrowed argument, or 2) be certain that the returned Tensor from + # the shim function cannot escape. + assert self.is_safe_to_use_borrow_arrayref_tensor_as_tensor(), ( + "borrowing arguments to shim functions is unsafe with " + "stack allocation on! (see comment above this assertion)" + ) + + def is_safe_to_use_borrow_arrayref_tensor_as_tensor(self): + return not self.allow_stack_allocation and not self.stack_allocated_buffers + + def generate_c_shim_extern_kernel_call( + self, kernel: str, args: list[str], device: str, **_ + ) -> None: + # In the abi_compatible mode, we call fallback aten ops through a C shim layer + # Setting self.allow_stack_allocation to False because the exchange between + # ArrayRefTensor and at::Tensor is still fragile. + self.allow_stack_allocation = False + + wrapped_args = [] + for arg in args: + # We only really *need* borrow_arrayref_tensor_as_tensor for + # ArrayRefTensors. The code flowing into here uses `0` for nullptr, which + # borrow_arrayref_tensor_as_tensor would blindly coerce to int, so just + # avoid wrapping integers. Name matching is to find tensor is hacky, but + # fixing all the ArrayRefTensor issues is not a priority for now. + if isinstance(arg, str) and arg.startswith( + ("buf", "arg", "wrap_with_raii_handle_if_needed") + ): + self._assert_safe_to_use_borrow_arrayref_tensor_as_tensor() + arg = f"borrow_arrayref_tensor_as_tensor({arg})" + wrapped_args.append(arg) + + super().generate_c_shim_extern_kernel_call( + kernel, wrapped_args, device, debug_args=args + ) + + def generate_scatter_fallback(self, node: ir.ScatterFallback): + # No stack allocation when there is a fallback op + self.allow_stack_allocation = False + super().generate_scatter_fallback(node) + + def _generate_scatter_fallback( + self, + output, + inputs, + cpp_kernel_name, + python_kernel_name, + src_is_tensor, + reduce, + kwargs, + device, + ): + reduce = self._get_scatter_reduce_enum(reduce) + + # call the ABI shim function instead of the ATen one + self.add_device_include(device) + cpp_kernel_name = self.get_c_shim_func_name(cpp_kernel_name, device) + + # TODO: consider remove "_out" and add missing inplace variants to fallback_ops.py + cpp_kernel_name = cpp_kernel_name.replace("__", "_") + "_out" + self._assert_safe_to_use_borrow_arrayref_tensor_as_tensor() + inputs_wrapped = [ + (f"borrow_arrayref_tensor_as_tensor({x})" if isinstance(x, str) else str(x)) + for x in inputs + ] + line = f"{cpp_kernel_name}(borrow_arrayref_tensor_as_tensor({output}), {','.join(inputs_wrapped)}" + + if python_kernel_name.startswith("aten.scatter_reduce"): + line += f", {','.join(kwargs)}" + else: + if src_is_tensor: + if reduce: + line += f", {V.graph.wrapper_code.val_to_arg_str(reduce)}" + else: + assert reduce is None, ( + "Expect reduce to be None for aten.scatter_ with scalar src" + ) + line += ");" + self.writeline(line) + + def generate_index_put_fallback(self, node: ir.IndexPutFallback) -> None: + # No stack allocation when there is a fallback op + self.allow_stack_allocation = False + super().generate_index_put_fallback(node) + + def _generate_index_put_fallback(self, kernel, x, indices, values, accumulate): + self._assert_safe_to_use_borrow_arrayref_tensor_as_tensor() + # TODO: update aoti_torch_index_put_out in ir.py to use autogen out version + # See the comment in codegen_reinterpret_view about why having something like + # RAIIAtenTensorHandle(tmp_tensor_handle_2) in a tmp array can cause the corresponding + # tensor prematurely deallocated, thus the temporary array trick here. + indices_str = self._generate_temporary_array_pointer( + "AtenTensorHandle", + [f"borrow_arrayref_tensor_as_tensor({i})" for i in indices], + ) + args = [ + f"borrow_arrayref_tensor_as_tensor({x})", + indices_str, + str(len(indices)), + f"borrow_arrayref_tensor_as_tensor({values})", + accumulate, + ] + args.insert( + 0, f"borrow_arrayref_tensor_as_tensor({x})" + ) # set x as the output tensor, this fallback mutates x. + self.writeline(self.wrap_kernel_call(kernel, args)) + + def generate_fallback_kernel_with_runtime_lookup( + self, + buf_name: str, + python_kernel_name: str, + get_args: Callable[[], Sequence[str]], + op_overload: Union[torch._ops.OpOverload, torch._ops.HigherOrderOperator], + raw_args: Sequence[Any], + outputs: Sequence[ir.Buffer], + ) -> None: + # No stack allocation when there is a fallback op + self.allow_stack_allocation = False + super().generate_fallback_kernel_with_runtime_lookup( + buf_name, python_kernel_name, get_args, op_overload, raw_args, outputs + ) + + def codegen_device_copy(self, src, dst, non_blocking: Union[bool, str]): + # aoti_torch_tensor_copy_ takes AtenTensorHandle as input, + # while stack-allocation results in ArrayRefTensor + # so disable stack allocation here + self.allow_stack_allocation = False + self.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_copy_(expensive_copy_to_tensor_if_needed({dst}), {src}, {non_blocking}));" + ) + + def codegen_reinterpret_view( + self, + data, + size, + stride, + offset, + writeline: Callable[..., None], + dtype=None, + ) -> str: + """Returns a newly-created, temporary RAII tensor handle containing the + reinterpreted tensor data. Callers of this function are responsible for saving + the handle if persistent access is needed.""" + dim = str(len(size)) + + def create_reinterpret_call() -> str: + args = [ + f"{data.get_name()}", + dim, + self.codegen_int_array_var( + self.codegen_shape_tuple(size), + writeline, + known_statically=self.is_statically_known_list_of_ints(size), + graph=self.get_codegened_graph(), + ), + self.codegen_int_array_var( + self.codegen_shape_tuple(stride), + writeline, + known_statically=self.is_statically_known_list_of_ints(stride), + graph=self.get_codegened_graph(), + ), + offset, + ] + return f"wrap_with_raii_handle_if_needed(reinterpret_tensor_wrapper({', '.join(args)}))" + + def create_new_tensor_handle() -> tuple[str, list[str]]: + # Calling reset() on ArrayRefTensor does nothing, since the array is + # const-allocated on the stack. Thus, it's safe to return a reference to + # the original array. + if (name := data.get_name()) in self.stack_allocated_buffers: + return name, [] + + tmp_AtenTensorHandle = f"tmp_{name}_{next(self.tmp_tensor_id)}" + tmp_call_strs = [ + f"AtenTensorHandle {tmp_AtenTensorHandle};", + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_new_tensor_handle({data.get_name()}, &{tmp_AtenTensorHandle}));", + ] + return f"RAIIAtenTensorHandle({tmp_AtenTensorHandle})", tmp_call_strs + + if ( + size == data.layout.size + and stride == data.layout.stride + and offset == data.layout.offset + and (dtype is None or dtype == data.dtype) + ): + final_tensor_str, call_strs = create_new_tensor_handle() + for line in call_strs: + writeline(line) + return final_tensor_str + + return super().codegen_reinterpret_view( + data, size, stride, offset, writeline, dtype + ) + + def val_to_arg_str(self, val, type_=None) -> str: + if ( + val is not None + and isinstance(type_, torch.OptionalType) + and isinstance(type_.getElementType(), torch.TensorType) + ): + # Handle optional tensors as a special case, as in the parent class. + base_handle = self.val_to_arg_str(val, torch.TensorType) + if config.aot_inductor.use_minimal_arrayref_interface: + if self.is_safe_to_use_borrow_arrayref_tensor_as_tensor(): + base_handle = f"borrow_arrayref_tensor_as_tensor({base_handle})" + else: + base_handle = f"copy_arrayref_tensor_to_tensor({base_handle})" + return f"&temporary_reference({base_handle}.get())" + + return super().val_to_arg_str(val, type_) + + def codegen_tensor_item( + self, dtype: torch.dtype, tensor: str, scalar: str, indented_buffer=None + ): + dtype_str = str(dtype).split(".")[-1] + writer = indented_buffer or self + + if dtype == torch.float16 or dtype == torch.bfloat16: + scalar_tmp = f"{scalar}_tmp" + writer.writeline(f"{DTYPE_TO_CPP[dtype]} {scalar_tmp};") + + # We know that item_ doesn't alias the input, so borrowing should be safe. + tensor = f"borrow_arrayref_tensor_as_tensor({tensor})" + + writer.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_item_{dtype_str}({tensor}, &{scalar_tmp}));" + ) + writer.writeline(f"float {scalar} = float({scalar_tmp});") + else: + writer.writeline(f"{DTYPE_TO_CPP[dtype]} {scalar};") + + # We know that item_ doesn't alias the input, so borrowing should be safe. + tensor = f"borrow_arrayref_tensor_as_tensor({tensor})" + + writer.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_item_{dtype_str}({tensor}, &{scalar}));" + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_wrapper_gpu.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_wrapper_gpu.py new file mode 100644 index 0000000000000000000000000000000000000000..42c082d9d92af7585c1d56dd35a1b79ba55f9ede --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_wrapper_gpu.py @@ -0,0 +1,891 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import dataclasses +import re +import sys +from itertools import count, zip_longest +from typing import Any, Optional, Union +from typing_extensions import Self + +import sympy + +import torch +from torch import dtype as torch_dtype +from torch._inductor.codecache import get_cpp_wrapper_cubin_path_name +from torch._inductor.runtime.runtime_utils import dynamo_timed + +from .. import config +from ..codecache import CudaKernelParamCache +from ..ir import ( + GraphPartitionSignature, + TensorBox, + TMADescriptorExperimental, + TMADescriptorStable, +) +from ..utils import cache_on_self, get_gpu_type, GPU_ALIGN_BYTES, IndentedBuffer +from ..virtualized import V +from .aoti_hipify_utils import maybe_hipify_code_wrapper +from .common import get_device_op_overrides, TritonScratchWorkspace +from .cpp_utils import cexpr +from .cpp_wrapper_cpu import CppWrapperCpu +from .multi_kernel import MultiKernelCall +from .triton_utils import should_unwrap_unspec_arg +from .wrapper import PythonWrapperCodegen, SymbolicCallArg + + +_cpp_string_literal_escapes = { + "\\": "\\\\", + '"': '\\"', + "\n": "\\n", + "\t": "\\t", + "\r": "\\r", +} +_cpp_string_literal_pattern = re.compile(r'["\\\n\t\r]') + + +def cpp_string_literal(s: str) -> str: + escaped = _cpp_string_literal_pattern.sub( + lambda match: _cpp_string_literal_escapes[match.group(0)], s + ) + return f'"{escaped}"' + + +@dataclasses.dataclass +class DeferredTritonCallWrapper: + """ + When using cpp wrapper, GPU kernel load and launch needs to wait for Triton kernels + to be tuned and stored as cubin files, so use a deferred generating the final wrapper around + the triton kernel until right before the prefix is written. + """ + + wrapper_name: str + kernel_name: str + kernel_name_to_body: dict[str, str] + arg_types: list[Any] + + def generate(self, wrapper: CppWrapperGpu): + """ + Generate the GPU kernel definition, as well as load and launch code. + """ + prefix = wrapper.prefix + if self.kernel_name.startswith("multi_kernel_"): + # MultiKernel will select one kernel after running the autotune block + self.kernel_name = MultiKernelCall.lookup_choice(self.kernel_name) + params = CudaKernelParamCache.get(self.kernel_name) + assert params, f"CudaKernelParamCache not populated for {self.kernel_name}" + def_args = params["def_args"] + arg_types = self.arg_types + inductor_meta = params["inductor_meta"] + + if "extra_launcher_args" in inductor_meta and len(def_args) > len(arg_types): + # extra_launcher_args should already be in def_args + assert len(def_args) == len(arg_types) - len( + inductor_meta["extra_launcher_args"] + ) + arg_types = arg_types + [SymbolicCallArg] * len( + inductor_meta["extra_launcher_args"] + ) + + if not V.graph.aot_mode: + prefix.writeline( + maybe_hipify_code_wrapper( + f"static {wrapper.device_codegen.cpp_kernel_type()} {self.kernel_name} = nullptr;" + ) + ) + kernel_var_name = self.kernel_name + else: + kernel_var_name = f"kernels_.{self.kernel_name}" + + # tensors can be RAIIAtenTensorHandle or ConstantHandle, so make them template types + template_types = [ + f"typename {name}_type_" + for name, arg_type in zip(def_args, arg_types) + if isinstance(arg_type, (torch_dtype, UnwrapUnspecArg)) + ] + if V.graph.aot_mode: + template_types.append("typename kernels_type_") + if template_types: + prefix.writeline(f"template <{', '.join(template_types)}>") + prefix.writeline(f"static inline void {self.wrapper_name}(") + with prefix.indent(): + assert len(def_args) == len(arg_types), (def_args, arg_types) + for name, arg_type in zip(def_args, arg_types): + if isinstance(arg_type, (torch_dtype, UnwrapUnspecArg)): + prefix.writeline(f"const {name}_type_& {name},") + elif issubclass(arg_type, (SymbolicCallArg, sympy.Expr, int)): + prefix.writeline(f"int64_t {name},") + elif arg_type is float: + prefix.writeline(f"float {name},") + elif arg_type is bool: + prefix.writeline(f"bool {name},") + else: + raise ValueError(f"Unexpected arg type {arg_type}") + prefix.writeline("int32_t device_idx_,") + prefix.writeline( + maybe_hipify_code_wrapper( + f"{wrapper.device_codegen.cpp_stream_type()} stream_," + ) + ) + if V.graph.aot_mode: + prefix.writeline("kernels_type_& kernels_,") + prefix.writeline( + "const std::optional& cubin_dir_ = std::nullopt" + ) + prefix.writeline("){") + with prefix.indent(): + if V.graph.aot_mode: + # Emit the original Triton kernel for debugging purposes + prefix.writeline("/*") + prefix.splice(self.kernel_name_to_body[self.kernel_name]) + prefix.writeline("*/") + self.generate_grid(prefix, inductor_meta, params) + self.generate_load_kernel(prefix, kernel_var_name, params) + self.generate_launch_kernel(prefix, wrapper, kernel_var_name, params) + prefix.writeline("}") + + if not config.aot_inductor.embed_kernel_binary: + # Ensure the cubin file is included in the package + V.graph.wrapper_code.additional_files.append( + params[get_cpp_wrapper_cubin_path_name()] + ) + + def generate_grid( + self, + prefix: IndentedBuffer, + inductor_meta: dict[str, Any], + params: dict[str, Any], + ): + from ..runtime.triton_heuristics import GridExpr + + grid = GridExpr.from_meta(inductor_meta, params["config"], mode="cpp") + for line in grid.prefix: + prefix.writeline(line) + prefix.splice( + f"""\ + uint32_t grid_0 = {grid.x_grid}; + uint32_t grid_1 = {grid.y_grid}; + uint32_t grid_2 = {grid.z_grid}; + """ + ) + prefix.writeline("if (grid_0 == 0 || grid_1 == 0 || grid_2 == 0) return;") + + def generate_load_kernel(self, prefix, kernel_var_name, params): + prefix.writeline(f"if ({kernel_var_name} == nullptr) {{") + with prefix.indent(): + embed_kernel_args = [f"__{params['inductor_meta']['kernel_name']}_start"] + if torch.xpu.is_available(): + # XPU needs the end address of the kernel to calculate the size of the kernel binary. + embed_kernel_args.append( + f"__{params['inductor_meta']['kernel_name']}_end" + ) + + load_kernel_args = ( + [ + *embed_kernel_args, + cpp_string_literal(params["mangled_name"]), + str(params["shared_mem"]), + ] + if V.graph.aot_mode and config.aot_inductor.embed_kernel_binary + else [ + cpp_string_literal(params[get_cpp_wrapper_cubin_path_name()]), + cpp_string_literal(params["mangled_name"]), + str(params["shared_mem"]), + "cubin_dir_", + ] + ) + prefix.writeline( + f"{kernel_var_name} = loadKernel({', '.join(load_kernel_args)}); " + ) + prefix.writeline("}") + + def generate_launch_kernel(self, prefix, wrapper, kernel_var_name, params): + """ + Generate the GPU kernel launching code. + This is where all the call args being sorted out and generated. + If enable_kernel_profile is enabled, all args related information would be packed in this function. + """ + triton_meta = params["triton_meta"] + assert len(self.arg_types) == len(params["def_args"]), ( + self.arg_types, + params["def_args"], + ) + arg_type_loookup = dict(zip(params["def_args"], self.arg_types)) + # difference between Python and C++ wrapper: C++ wrapper strips out equal_to_1 constants + call_args = [ + name for name in params["call_args"] if name not in triton_meta["constants"] + ] + arg_types = [arg_type_loookup[name] for name in call_args] + arg_signatures = [triton_meta["signature"][name] for name in call_args] + scratch_spaces = { + name: params[name] + for name in ["global_scratch", "profile_scratch"] + if params.get(name, None) is not None + } + call_args_str = wrapper.generate_args_decl( + prefix, + call_args, + arg_types, + arg_signatures, + scratch_spaces=scratch_spaces, + ) + prefix.writeline(f"void* kernel_args_[] = {{{call_args_str}}};") + launch_kernel_args = [ + kernel_var_name, + "grid_0", + "grid_1", + "grid_2", + str(params["num_warps"]), + str(params["shared_mem"]), + "kernel_args_", + "stream_", + ] + if wrapper.device == "xpu": + launch_kernel_args.append(str(params["threads_per_warp"])) + + enable_kernel_profile = config.cpp.enable_kernel_profile and sys.platform in [ + "linux", + "win32", + ] + if enable_kernel_profile: + normalized_kernel_name = re.sub(r"[^a-zA-Z0-9_]", "_", f"{kernel_var_name}") + prefix.writeline("{") + with prefix.indent(): + prefix.writelines( + [ + f"std::unordered_map kwargs_{normalized_kernel_name};", + "", + ] + ) + # Add launch args info + record_launch_kernel_args = [ + ("grid_0", "grid_0"), + ("grid_1", "grid_1"), + ("grid_2", "grid_2"), + ("num_warps", str(params["num_warps"])), + ("shared_mem", str(params["shared_mem"])), + ] + for k, v in record_launch_kernel_args: + arg_name = f"{normalized_kernel_name}_{k}" + prefix.writelines( + [ + f"// Create c10::IValue for {k}", + f"C10IValueHandle tmp_{arg_name};", + f"aoti_torch_int64_to_ivalue({v}, &tmp_{arg_name});", + f"RAIIC10IValueHandle RAII_{arg_name}(tmp_{arg_name});", + f'kwargs_{normalized_kernel_name}.emplace("{k}", RAII_{arg_name});', + ] + ) + + # Add input info (This copies the logic from args_decl) + signature2dtype = { + "i32": "int32_t", + "i64": "int64_t", + "fp32": "float", + } + + def signature_is_tma_desc(sig): + if not sig: + return False + if sig == "nvTmaDesc": + return True + if sig.startswith("tensordesc<"): + return True + return False + + curr_arg_id = -1 + total_args = [] + ordered_argsname = [] + + def write_dummy_scalar_ivalue(arg_name): + # We only care about the shape, therefore we create a dummy scalar here. + prefix.writelines( + [ + f"// Create c10::IValue for arg_{curr_arg_id}", + f"C10IValueHandle tmp_{arg_name};", + f"aoti_torch_int64_to_ivalue(0, &tmp_{arg_name});", + f"RAIIC10IValueHandle RAII_{arg_name}(tmp_{arg_name});", + ] + ) + # pyrefly: ignore [bad-argument-type] + total_args.append(f"tmp_{arg_name}") + + def process_args_for_input_shape(arg, arg_type, arg_signature=None): + nonlocal curr_arg_id + curr_arg_id += 1 + arg_name = f"{normalized_kernel_name}_arg_{curr_arg_id}" + # ignore tma descriptors, as host-side TMA descriptors need + # to be passed to the compiled Triton kernel by value + if isinstance( + arg_type, UnwrapUnspecArg + ) and not signature_is_tma_desc(arg_signature): + write_dummy_scalar_ivalue(arg_name) + elif isinstance( + arg_type, torch_dtype + ) and not signature_is_tma_desc(arg_signature): + # This is an at::Tensor. + prefix.writelines( + [ + f"// Create c10::IValue for arg_{curr_arg_id}", + f"C10IValueHandle tmp_{arg_name};", + f"aoti_torch_tensor_to_ivalue({arg}, &tmp_{arg_name});", + f"RAIIC10IValueHandle RAII_{arg_name}(tmp_{arg_name});", + ] + ) + # pyrefly: ignore [bad-argument-type] + total_args.append(f"tmp_{arg_name}") + elif ( + isinstance(arg_type, type(SymbolicCallArg)) + and arg_signature is not None + and arg_signature in signature2dtype + ) or arg_type in (sympy.Integer, int, sympy.Float, float): + write_dummy_scalar_ivalue(arg_name) + elif arg_signature and arg_signature.startswith("tensordesc<"): + # Skip tma related args + pass + else: + write_dummy_scalar_ivalue(arg_name) + + # Add input name and shape information + for arg, arg_type, arg_signature in zip_longest( + call_args, arg_types, arg_signatures + ): + # pyrefly: ignore [bad-argument-type] + ordered_argsname.append(f'"{arg}"') + process_args_for_input_shape(arg, arg_type, arg_signature) + + # Add input name into kwargs + name_var = f"{normalized_kernel_name}_input_names" + prefix.writelines( + [ + "// Create c10::IValue for input names", + f"C10IValueHandle tmp_{name_var};", + f"std::vector {name_var}({{{', '.join(ordered_argsname)}}});", + f"aoti_torch_strlist_to_ivalue({name_var}.data(), {len(ordered_argsname)}, &tmp_{name_var});", + f"RAIIC10IValueHandle RAII_{name_var}(tmp_{name_var});", + f'kwargs_{normalized_kernel_name}.emplace("Input Args", RAII_{name_var});', + ] + ) + + inputs_info_ = f"{normalized_kernel_name}_inputs_info_" + # We pass in the non-RAII handles, since C10 doesn't automatically free them. + # The RAII will make sure they get freed when they are out of scope. + tmp_args = ",".join(total_args) + prefix.writelines( + [ + "// Aggregate all c10::IValue for inputs", + f"std::vector {inputs_info_}({{{tmp_args}}});", + ] + ) + + # Start recording Function + prefix.writelines( + [ + "", + ( + "torch::aot_inductor::RAIIAtenRecordFunctionHandle " + f"record_{normalized_kernel_name}_" + f'("{kernel_var_name}", ' + f"reinterpret_cast(&kwargs_{normalized_kernel_name}), " + f"{inputs_info_});" + ), + "", + f"launchKernel({', '.join(launch_kernel_args)});", + ] + ) + prefix.writeline("}") + else: + prefix.writeline(f"launchKernel({', '.join(launch_kernel_args)});") + + +class CppWrapperGpu(CppWrapperCpu): + """ + Generates cpp wrapper for running on GPU and calls CUDA kernels + """ + + def __init__(self) -> None: + self.device = get_gpu_type() + self.device_codegen = get_device_op_overrides(self.device) + super().__init__() + self.grid_id = count() + self._kernel_name_to_body: dict[str, str] = {} + self._triton_call_wrappers: dict[str, DeferredTritonCallWrapper] = {} + self.autotune_input_prefix = "_REAL_AUTOTUNE_INPUT" + + @staticmethod + def create( + is_subgraph: bool, + subgraph_name: Optional[str], + parent_wrapper: Optional[PythonWrapperCodegen], + partition_signatures: Optional[GraphPartitionSignature] = None, + ): + # TODO - support subgraph codegen by lifting functions. Check the + # comment at CppWrapperCpu `codegen_subgraph` function. + return CppWrapperGpu() + + def write_header(self): + if V.graph.is_const_graph: + # We do not write header for constant graph, it will be written by main module. + return + + super().write_header() + self.header.splice( + maybe_hipify_code_wrapper(self.device_codegen.kernel_driver()) + ) + + @cache_on_self + def write_tma_descriptor_helpers_once(self): + self.header.splice(self.device_codegen.tma_descriptor_helpers()) + + def write_get_raw_stream(self, device_idx: int, graph_name: str) -> str: + name = f"stream{device_idx}" + self.writeline( + maybe_hipify_code_wrapper( + f"{self.device_codegen.cpp_stream_type()} {name};" + ) + ) + self.writeline( + f"AOTI_TORCH_ERROR_CODE_CHECK({self.device_codegen.aoti_get_stream()}({device_idx}, (void**)&{name}));" + ) + return name + + def get_autotuning_input_name(self, idx): + return f"{self.autotune_input_prefix}_{idx}" + + def codegen_inputs(self): + # See Note: [Input Alignment handling in Inductor] + # + # JIT Inductor does not guard on input alignment. It relies on copy_misaligned_inputs to + # copy misaligned inputs to aligned buffers. For AOTInductor, we need to do the same in cpp. + + if config.is_fbcode(): + # TODO: This is added because FC. Remove this once the newly added shim symbols, + # e.g. aoti_torch_clone_preserve_strides, have landed + return super().codegen_inputs() + + if V.graph.aot_mode and V.graph.inputs_to_check: + for idx in V.graph.inputs_to_check: + input_name = V.graph.graph_input_names[idx] + assert input_name in V.graph.graph_inputs, ( + f"{input_name} not found in graph inputs" + ) + value = V.graph.graph_inputs[input_name] + assert isinstance(value, TensorBox), ( + f"{input_name} is expected to be tensor but found as {type(value)}" + ) + warn_msg = ( + f"Input {idx} was compiled as {GPU_ALIGN_BYTES}-bytes aligned, " + "but it is not aligned at run time. Copying to an aligned tensor " + "to guarantee correctness, but expect a performance hit." + ) + self.prefix.splice( + f""" + if ((reinterpret_cast({input_name}.data_ptr()) & ({GPU_ALIGN_BYTES} -1)) != 0) {{ + AOTI_TORCH_WARN("{warn_msg}"); + AtenTensorHandle {input_name}_aligned; + aoti_torch_clone_preserve_strides({input_name}, &{input_name}_aligned); + {input_name} = std::move(RAIIAtenTensorHandle({input_name}_aligned)); + }} + """ + ) + + super().codegen_inputs() + + def _define_kernel_helper( + self, + kernel_name: str, + kernel_body: str, + metadata: Optional[str] = None, + gpu: bool = True, + cpp_definition: Optional[str] = None, + ): + if gpu: + self._kernel_name_to_body[kernel_name] = kernel_body + if config.triton.autotune_at_compile_time: + # Call PythonWrapperCodegen to create the autotune code block + PythonWrapperCodegen._define_kernel_helper( + self, kernel_name, kernel_body, metadata, gpu, cpp_definition + ) + else: + return CppWrapperCpu._define_kernel_helper( + self, kernel_name, kernel_body, metadata, gpu, cpp_definition + ) + + def generate(self, is_inference): + with dynamo_timed("CppWrapperGpu.generate", log_pt2_compile_event=True): + return super().generate(is_inference) + + def finalize_prefix(self): + """Define the triton kernels now that autotuning is finished""" + old_prefix = self.prefix # new content should go at start of prefix + + # Generating triton kernel callers can modify the prefix (cached dtypes), + # so do this before running finalize_prefix(), but put the generated code + # after the finalize_prefix() code. + self.prefix = IndentedBuffer() + for kernel in self._triton_call_wrappers.values(): + self.prefix.writeline("\n") + kernel.generate(self) + triton_prefix = self.prefix + + self.prefix = IndentedBuffer() + super().finalize_prefix() + + self.prefix.splice(triton_prefix) + + self.prefix.writeline("\n") + self.prefix.splice(old_prefix) + + def generate_tma_descriptor(self, desc): + self.write_tma_descriptor_helpers_once() + + if isinstance(desc, TMADescriptorExperimental): + self._generate_experimental_tma_descriptor(desc) + else: + assert isinstance(desc, TMADescriptorStable) + self._generate_stable_tma_descriptor(desc) + + def _generate_experimental_tma_descriptor(self, desc): + # generate data pointer for the source tensor + source = self.generate_args_decl( + code=self, + call_args=[self.val_to_arg_str(desc.tensor)], + arg_types=[desc.tensor.get_dtype()], + arg_signatures=[None], + # these args are passed to initNDTMADescriptor, which is NOT a triton kernel + is_triton_kernel=False, + ) + + desc_name = desc.name + self.writeline(f"alignas(64) CUtensorMap {desc_name};") + + # `source` is in the form of `&var_x`, where `var_x` is the data pointer + # (CUdeviceptr); we dereference `source` and cast to `void*` to pass to + # the data pointer of the source tensor to the helper function + # `init{1,2}DTMADescriptor` + ptr = f"reinterpret_cast(*({source}))" + dims = ", ".join(self.val_to_arg_str(dim) for dim in desc.dims) + block_dims = ", ".join(self.val_to_arg_str(dim) for dim in desc.block_dims) + element_size = self.val_to_arg_str(desc.element_size) + fn = f"init{desc.rank}DTMADescriptor" + args = f"&{desc_name}, {ptr}, {dims}, {block_dims}, {element_size}" + self.writeline(f"{fn}({args});") + + def _generate_stable_tma_descriptor(self, desc): + source = self.generate_args_decl( + code=self, + call_args=[self.val_to_arg_str(desc.tensor)], + arg_types=[desc.tensor.get_dtype()], + arg_signatures=[None], + # these args are passed to initNDTMADescriptor, which is NOT a triton kernel + is_triton_kernel=False, + ) + + desc_name = desc.name + # Pack the relevant information into a StableTMADescriptor struct. + # See [Note: AOTI TMA Stable handling] for more details. + self.writeline(f"alignas(64) StableTMADescriptor {desc_name};") + + def fill_array(name, values): + for i, val in enumerate(values): + self.writeline(f"{name}[{i}] = {val};") + + ptr = f"reinterpret_cast(*({source}))" + rank = len(desc.tensor.get_size()) + + fill_array(f"{desc_name}.block_shape", desc.block_shape) + fill_array(f"{desc_name}.global_shape", desc.tensor.get_size()) + fill_array(f"{desc_name}.strides", desc.tensor.get_stride()) + + element_size = self.val_to_arg_str(desc.tensor.get_dtype().itemsize) + fn = "initTMADescriptor" + args = ", ".join( + str(x) + for x in [ + f"&{desc_name}.m", + ptr, + element_size, + rank, + f"{desc_name}.block_shape", + f"{desc_name}.global_shape", + f"{desc_name}.strides", + ] + ) + self.writeline(f"{fn}({args});") + + def generate_args_decl( + self, + code: Union[IndentedBuffer, Self], + call_args, + arg_types, + arg_signatures, + is_triton_kernel=True, + scratch_spaces: Optional[dict[str, int]] = None, + ): + """ + Generates any declarations of args to pass into a kernel call, and then returns the arg names. + + In more detail: + * declarations: e.g. this function has a side effect of generating lines like `auto var_0 = ...;` + * returns: a string with the list of args, e.g. "var_0, var_1" + + call_args: list of call arguments + arg_types: list of argument types + arg_signatures: list with signatures of all the args + is_triton_kernel: whether these are passed into a triton kernel or not. In particular, + calls to triton kernels will have an additional global scratch space + arg injected at the front of the arg list. + """ + new_args: list[str] = [] + + # Add more cases for other types as needed + signature2dtype = { + "i32": "int32_t", + "i64": "int64_t", + "fp32": "float", + } + + def signature_is_tma_desc(sig): + if not sig: + return False + if sig == "nvTmaDesc": + return True + if sig.startswith("tensordesc<"): + return True + return False + + def process_tma_stable_arg(arg, arg_type, arg_signature, var_name): + # [Note: AOTI TMA Stable handling] + # For most args, a single arg passed to the python triton interface + # maps to a single arg in the cubin interface. However, for host-side + # TMA descriptors, a single python arg turns into 1 + 2 * N args in the + # cubin interface (where N is the rank). + # + # To do this: at TMA codegen time (for aoti), we generate a struct + # (StableTMADescriptor) containing the necessary information; and then + # when we call the function (i.e. here), we unpack the struct members. + code.writeline(f"auto {var_name} = {cexpr(arg)};") + + result = [] + result.append(f"&{var_name}.m") + + # from https://github.com/triton-lang/triton/blob/16961b79bdac1b774b42d44e52fd55a266ec2866/third_party/nvidia/backend/driver.py#L111 # noqa: B950 + match = re.match("tensordesc<([^[>]*)\\[([^]]*)\\]", arg_signature) + assert match is not None + shape = match.group(2) + ndim = shape.count(",") + 1 + + for i in range(ndim): + result.append(f"&{var_name}.block_shape[{i}]") + + for i in range(ndim): + result.append(f"&{var_name}.strides[{i}]") + + return result + + def process_args(arg, arg_type, arg_signature=None): + var_name = f"var_{next(self.arg_var_id)}" + # ignore tma descriptors, as host-side TMA descriptors need + # to be passed to the compiled Triton kernel by value + if isinstance(arg_type, UnwrapUnspecArg) and not signature_is_tma_desc( + arg_signature + ): + self.codegen_tensor_item( + arg_type.dtype, + arg, + var_name, + indented_buffer=code, + ) + new_args.append(f"&{var_name}") + elif isinstance(arg_type, torch_dtype) and not signature_is_tma_desc( + arg_signature + ): + device_ptr_type = self.device_codegen.cpp_device_ptr() + code.writeline( + maybe_hipify_code_wrapper( + f"{device_ptr_type} {var_name} = reinterpret_cast<{device_ptr_type}>({arg}.data_ptr());" + ) + ) + new_args.append(f"&{var_name}") + # For symbolic call arguments, examine the arg signatures from triton meta + # to explicitly cast to the right type + # Reason: `auto` can infer unexpected type against kernel input signature. + elif ( + isinstance(arg_type, type(SymbolicCallArg)) + and arg_signature is not None + and arg_signature in signature2dtype + ): + code.writeline( + f"{signature2dtype[arg_signature]} {var_name} = {cexpr(arg)};" + ) + new_args.append(f"&{var_name}") + elif arg_type in (sympy.Integer, int): + code.writeline(f"int {var_name} = {cexpr(arg)};") + new_args.append(f"&{var_name}") + elif arg_type in (sympy.Float, float): + code.writeline(f"float {var_name} = {cexpr(arg)};") + new_args.append(f"&{var_name}") + elif arg_signature and arg_signature.startswith("tensordesc<"): + new_args.extend( + process_tma_stable_arg(arg, arg_type, arg_signature, var_name) + ) + else: + code.writeline(f"auto {var_name} = {cexpr(arg)};") + new_args.append(f"&{var_name}") + + for arg, arg_type, arg_signature in zip_longest( + call_args, arg_types, arg_signatures + ): + process_args(arg, arg_type, arg_signature) + + for scratch_name, workspace_size in (scratch_spaces or {}).items(): + if ( + is_triton_kernel + and ( + scratch := self.device_codegen.cpp_scratch( + next(self.arg_var_id), + workspace=TritonScratchWorkspace( + size=workspace_size, + generate_dtype_str=( + lambda: self.codegen_dtype(torch.uint8) + ), + ), + prefix=scratch_name, + ) + ) + is not None + ): + scratch_def, scratch_var = scratch + code.writelines([maybe_hipify_code_wrapper(x) for x in scratch_def]) + new_args.append(f"&{scratch_var}") + + return ", ".join(new_args) + + def _generate_kernel_call_helper( + self, + kernel_name: str, + call_args, + *, + device=None, + triton=True, + arg_types=None, + raw_keys=None, + raw_args=None, + triton_meta=None, + graph_name="", + original_fxnode_name=None, + ): + """ + Override the default value of argument 'gpu' to True here. + generate_kernel_call can still be called with gpu=False because of + a mix of cpu kernels and gpu kernels. + """ + device = device or V.graph.get_current_device_or_throw() + if device.type == "cpu": + # Even in CppWrapperGpu, we may see cpp kernels + return CppWrapperCpu._generate_kernel_call_helper( + self, + kernel_name, + call_args, + device=device, + triton=triton, + arg_types=arg_types, + raw_keys=raw_keys, + raw_args=raw_args, + triton_meta=triton_meta, + ) + + if ( + triton + and config.triton.autotune_at_compile_time + and kernel_name not in self.kernel_autotune_names + ): + # Call PythonWrapperCodegen to create the autotune code block + PythonWrapperCodegen._generate_kernel_call_helper( + self, + kernel_name, + call_args, + device=device, + triton=triton, + arg_types=arg_types, + raw_keys=raw_keys, + raw_args=raw_args, + triton_meta=triton_meta, + original_fxnode_name=original_fxnode_name, + ) + + stream = ( + "stream" + if V.graph.aot_mode + else self.write_get_raw_stream(device.index, graph_name) + ) + + if triton: + call_args, arg_types = self.prepare_triton_wrapper_args( + call_args, + # pyrefly: ignore [bad-argument-type] + arg_types, + ) + wrapper_name = f"call_{kernel_name}" + if wrapper_name not in self._triton_call_wrappers: + self._triton_call_wrappers[wrapper_name] = DeferredTritonCallWrapper( + wrapper_name, + kernel_name, + self._kernel_name_to_body, + arg_types, + ) + device_idx = "this->device_idx_" if V.graph.aot_mode else str(device.index) + call_args.append(device_idx) + call_args.append(stream) + if V.graph.aot_mode: + call_args.append("kernels") + call_args.append("this->cubin_dir_") + debug_printer_manager = V.graph.wrapper_code.debug_printer + debug_printer_manager.set_printer_args( + call_args[: len(arg_types)], kernel_name, arg_types, None + ) + with debug_printer_manager: + self.writeline(f"{wrapper_name}({', '.join(call_args)});") + else: + casted = [] + # pyrefly: ignore [no-matching-overload] + for arg_type, arg in zip(arg_types, call_args): + new_arg = arg + if arg_type.endswith("*") and arg != "nullptr": + new_arg = f"{arg}.data_ptr()" + # pyrefly: ignore [bad-argument-type] + casted.append(f"({arg_type}){cexpr(new_arg)}") + call_args_str = ", ".join(casted) + self.writeline(f"kernels.{kernel_name}({call_args_str}, {stream});") + + @staticmethod + def prepare_triton_wrapper_args( + call_args: list[Any], arg_types: list[Any] + ) -> tuple[list[Any], list[Any]]: + assert len(call_args) == len(arg_types), (call_args, arg_types) + new_args = [] + new_args_types = [] + for arg, arg_type in zip(call_args, arg_types): + if isinstance(arg, str): + if isinstance(arg_type, torch_dtype) and should_unwrap_unspec_arg(arg): + # dynamo wraps unspec variable as 0d CPU tensor, need convert to scalar + arg_type = UnwrapUnspecArg(dtype=arg_type) + new_args.append(arg) + elif isinstance(arg, bool): + new_args.append(str(arg).lower()) + elif isinstance(arg, (int, float, SymbolicCallArg)): + new_args.append(str(arg)) + else: + new_args.append(cexpr(V.graph.sizevars.simplify(arg))) + new_args_types.append(arg_type) + return new_args, new_args_types + + def make_zero_buffer(self, name): + return f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_zero_({name}.get()));" + + +@dataclasses.dataclass +class UnwrapUnspecArg: + """Marker that we need to call .item() on the tensor""" + + dtype: torch_dtype diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_wrapper_mps.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_wrapper_mps.py new file mode 100644 index 0000000000000000000000000000000000000000..7a5638f37b7856927f612a37c867c46c3e76785e --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpp_wrapper_mps.py @@ -0,0 +1,301 @@ +from typing import Any, Optional + +import sympy + +import torch +from torch.utils._ordered_set import OrderedSet + +from ..ir import GraphPartitionSignature +from ..virtualized import V +from .cpp_wrapper_cpu import CppWrapperCpu +from .cpp_wrapper_gpu import CppWrapperGpu +from .wrapper import KernelCallLine, PythonWrapperCodegen + + +class CppWrapperMps(CppWrapperGpu): + """ + Generates cpp wrapper for running on MPS and calls metal kernels + """ + + def __init__(self) -> None: + super().__init__() + self._used_kernel_names: OrderedSet[str] = OrderedSet() + self._lambda_counter: int = 0 + + @staticmethod + def create( + is_subgraph: bool, + subgraph_name: Optional[str], + parent_wrapper: Optional[PythonWrapperCodegen], + partition_signatures: Optional[GraphPartitionSignature] = None, + ) -> "CppWrapperMps": + return CppWrapperMps() + + def _generate_kernel_call_helper( + self, + kernel_name: str, + call_args: list[str], + *, + device: Optional[torch.device] = None, + triton: bool = True, + arg_types: Optional[tuple[Any, ...]] = None, + raw_keys: Optional[tuple[Any, ...]] = None, + raw_args: Optional[tuple[Any, ...]] = None, + triton_meta: Optional[dict[str, Any]] = None, + graph_name: str = "", + original_fxnode_name: Optional[str] = None, + ) -> None: + """ + Generates MPS kernel call code. It should look something like: + ``` + auto mps_lib_0_lambda = [&](AOTIMetalKernelFunctionHandle handle) { + aoti_torch_mps_start_encoding(handle); + aoti_torch_mps_set_arg_tensor(handle, 0, buf0); + aoti_torch_mps_set_arg_tensor(handle, 1, arg0_1); + aoti_torch_mps_set_arg_tensor(handle, 2, arg1_1); + aoti_torch_mps_dispatch_single(handle, static_cast(10LL)); + }; + + std::function mps_lib_0_func_wrapper = mps_lib_0_lambda; + aoti_torch_mps_run_command_block(get_mps_lib_0_handle(), aoti_torch_mps_shared_callback, &mps_lib_0_func_wrapper); + ``` + """ + device = device or V.graph.get_current_device_or_throw() + if device.type == "cpu": + # Even in CppWrapperGpu, we may see cpp kernels + return CppWrapperCpu._generate_kernel_call_helper( + self, + kernel_name, + call_args, + device=device, + triton=triton, + arg_types=arg_types, + raw_keys=raw_keys, + raw_args=raw_args, + triton_meta=triton_meta, + ) + + assert device.type == "mps" + + assert arg_types is not None + + new_args = [] + for idx, (arg, arg_type) in enumerate(zip(call_args[:-2], arg_types[:-2])): + if isinstance(arg_type, torch.dtype): + new_args.append(f"aoti_torch_mps_set_arg_tensor(handle, {idx}, {arg});") + elif arg_type in (int, sympy.core.symbol.Symbol): + new_args.append(f"aoti_torch_mps_set_arg_int(handle, {idx}, {arg});") + else: + raise NotImplementedError( + f"Unsupported arg type {arg_type} for arg {arg} for kernel {kernel_name}" + ) + + threads, group_size = call_args[-2], call_args[-1] + if threads is None: + raise NotImplementedError("No threads or group_size provided") + + # Check if threads is a single value or an array-like structure + threads_str = str(threads) + is_single_value = ( + threads_str.startswith("{") + and threads_str.endswith("}") + and threads_str.count(",") == 0 + ) or not threads_str.startswith(("{", "[")) + + if is_single_value: + # Extract single value from braces if present + if threads_str.startswith("{") and threads_str.endswith("}"): + single_value = threads_str[1:-1].strip() # Remove braces + else: + single_value = threads_str + + if group_size is None: + new_args.append( + f"aoti_torch_mps_dispatch_single(handle, {single_value});" + ) + else: + # Extract group size value if it's also in braces + group_size_str = str(group_size) + if group_size_str.startswith("{") and group_size_str.endswith("}"): + group_size_value = group_size_str[1:-1].strip() + else: + group_size_value = group_size_str + new_args.append( + f"aoti_torch_mps_dispatch_single_with_group_size(handle, {single_value}, {group_size_value});" + ) + else: + # Handle array case - need to convert initializer list to array + # Use kernel name to make variable names unique + threads_var = f"{kernel_name}_threads_array" + group_size_var = f"{kernel_name}_group_size_array" + + # Extract array size from the initializer list string + def get_array_size(array_str: str) -> int: + # Remove braces and whitespace + content = array_str.strip() + if content.startswith("{") and content.endswith("}"): + content = content[1:-1].strip() + + if not content: # Empty array + return 0 + + # Count elements by counting commas, accounting for nested structures + depth = 0 + comma_count = 0 + for char in content: + if char in "({[<": + depth += 1 + elif char in ")}]>": + depth -= 1 + elif char == "," and depth == 0: + comma_count += 1 + + return comma_count + 1 # Number of elements = commas + 1 + + threads_size = get_array_size(threads_str) + + if group_size is None: + new_args.append("{") + new_args.append(f" uint64_t {threads_var}[] = {threads};") + new_args.append( + f" aoti_torch_mps_dispatch_array(handle, {threads_var}, {threads_size});" + ) + new_args.append("}") + else: + group_size_str = str(group_size) + group_size_size = get_array_size(group_size_str) + new_args.append("{") + new_args.append(f" uint64_t {threads_var}[] = {threads};") + new_args.append(f" uint64_t {group_size_var}[] = {group_size};") + dispatch_args = f"handle, {threads_var}, {threads_size}, {group_size_var}, {group_size_size}" + new_args.append( + f" aoti_torch_mps_dispatch_array_with_group_size({dispatch_args});" + ) + new_args.append("}") + + # debug printer related logic for cpp kernel type. + debug_printer_manager = V.graph.wrapper_code.debug_printer + debug_printer_manager.set_printer_args( + call_args[:-2], + kernel_name, + None, + None, + "cpp", + ) + with debug_printer_manager: + self.write_mps_kernel_call(kernel_name, new_args) + + def write_mps_kernel_call(self, name: str, call_args: list[str]) -> None: + # Generate unique variable names to avoid duplicate declarations + # when the same MPS lib is used multiple times + unique_suffix = self._lambda_counter + self._lambda_counter += 1 + + lambda_name = f"{name}_lambda_{unique_suffix}" + wrapper_name = f"{name}_func_wrapper_{unique_suffix}" + + # Generate the function call code (in current location) + # Create lambda that captures by reference and pass its pointer through void* + self.writeline( + f"auto {lambda_name} = [&](AOTIMetalKernelFunctionHandle handle) {{" + ) + self.writeline(" aoti_torch_mps_start_encoding(handle);") + + # Output call args directly since we're capturing by reference + for call_arg in call_args: + self.writeline(f" {call_arg}") + self.writeline("};") + self.writeline("") + + # Pass lambda pointer through void* + self.writeline( + f"std::function {wrapper_name} = {lambda_name};" + ) + self.writeline( + f"aoti_torch_mps_run_command_block(get_{name}_handle(), aoti_torch_mps_shared_callback, &{wrapper_name});" + ) + + @staticmethod + def get_device_include_path(device: str) -> str: + assert V.graph.aot_mode + return ( + "#include \n" + "#include " + ) + + def codegen_additional_funcs(self) -> None: + """ + Generate thread-safe lazy singleton pattern for MPS shader libraries with RAII cleanup. + + The generated code will look like: + ``` + AOTIMetalKernelFunctionHandle get_mps_lib_0_handle() { + static auto kernel_handle = []() { + AOTIMetalShaderLibraryHandle lib_handle = nullptr; + AOTIMetalKernelFunctionHandle kern_handle = nullptr; + + aoti_torch_mps_create_shader_library(mps_lib_0_source, &lib_handle); + aoti_torch_mps_get_kernel_function(lib_handle, "generated_kernel", &kern_handle); + + // RAII wrapper with custom deleter + auto lib_deleter = [](AOTIMetalShaderLibraryHandle h) { + if (h) aoti_torch_mps_delete_shader_library(h); + }; + + using LibDeleter = decltype(lib_deleter); + using LibPtr = std::unique_ptr; + + // Return pair of kernel handle and library smart pointer for cleanup + return std::make_pair(kern_handle, LibPtr(lib_handle, lib_deleter)); + }(); + return kernel_handle.first; + } + ``` + """ + + # Add shimified handles and functions + shader_libraries: OrderedSet[str] = OrderedSet() + for line in self.lines: + if not isinstance(line, KernelCallLine): + continue + if line.device.type != "mps": + continue + + # Extract library name from kernel name (e.g., "mps_lib_0" from kernel calls) + if line.kernel_name not in self._used_kernel_names: + self._used_kernel_names.add(line.kernel_name) + shader_libraries.add(line.kernel_name) + + # NOTE: For shimified version, we expect the shader source constant to be generated + # by the existing MPS shader generation process, but instead of instantiating the + # DynamicMetalShaderLibrary directly, we'll use our shim functions. + # The existing codegen should produce something like: + # const char* mps_lib_0_source = R"MTL(...shader_source...)MTL"; + # instead of: + # at::native::mps::DynamicMetalShaderLibrary mps_lib_0(R"MTL(...shader_source...)MTL"); + + # Generate thread-safe lazy singleton with RAII for each library + for lib_name in shader_libraries: + self.prefix.splice(f""" +AOTIMetalKernelFunctionHandle get_{lib_name}_handle() {{ + static auto kernel_handle = []() {{ + AOTIMetalShaderLibraryHandle lib_handle = nullptr; + AOTIMetalKernelFunctionHandle kern_handle = nullptr; + + aoti_torch_mps_create_shader_library({lib_name}_source, &lib_handle); + aoti_torch_mps_get_kernel_function(lib_handle, "generated_kernel", &kern_handle); + + // RAII wrapper with custom deleter + auto lib_deleter = [](AOTIMetalShaderLibraryHandle h) {{ + if (h) aoti_torch_mps_delete_shader_library(h); + }}; + + using LibDeleter = decltype(lib_deleter); + using LibPtr = std::unique_ptr; + + // Return pair of kernel handle and library smart pointer for cleanup + return std::make_pair(kern_handle, LibPtr(lib_handle, lib_deleter)); + }}(); + return kernel_handle.first; +}} +""") diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpu_device_op_overrides.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpu_device_op_overrides.py new file mode 100644 index 0000000000000000000000000000000000000000..ccada837abbd4dbdaf16984c0a44ff7f90cedc04 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cpu_device_op_overrides.py @@ -0,0 +1,30 @@ +from __future__ import annotations + +from textwrap import dedent + +from .common import DeviceOpOverrides, register_device_op_overrides + + +class CpuDeviceOpOverrides(DeviceOpOverrides): + def import_get_raw_stream_as(self, name: str) -> str: + return dedent( + """ + def get_raw_stream(_): + return 0 + """ + ) + + def cpp_kernel_type(self) -> str: + return "void*" + + def set_device(self, device_idx: int) -> str: + return "pass" + + def synchronize(self) -> str: + return "pass" + + def device_guard(self, device_idx: int) -> str: + return "pass" + + +register_device_op_overrides("cpu", CpuDeviceOpOverrides()) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cuda_cpp_scheduling.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cuda_cpp_scheduling.py new file mode 100644 index 0000000000000000000000000000000000000000..2496860ca1f7c72eadd86f908384e2f81983af4f --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cuda_cpp_scheduling.py @@ -0,0 +1,296 @@ +# mypy: allow-untyped-defs +import hashlib +import logging +from collections.abc import Sequence +from typing import cast + +from torch._inductor.codegen.cuda.cutlass_python_evt import ( + CutlassEVTCodegen, + MockCutlassHandler, +) +from torch._inductor.utils import Placeholder +from torch.utils._ordered_set import OrderedSet + +from ...._dynamo.utils import counters +from ... import config +from ...codecache import code_hash, get_path +from ...ir import Buffer, ComputedBuffer, CUDATemplateBuffer, Pointwise +from ...scheduler import ( + BaseSchedulerNode, + BaseScheduling, + FusedSchedulerNode, + SchedulerNode, + WhyNoFuse, +) +from ...utils import get_fused_kernel_name, get_kernel_metadata, sympy_product +from ...virtualized import V +from ..common import BackendFeature, IndentedBuffer + + +log = logging.getLogger(__name__) + + +class WhyNoFuseNames(WhyNoFuse): + def __init__(self, name1: str, name2: str) -> None: + self.name1 = name1 + self.name2 = name2 + + +class CUDACPPScheduling(BaseScheduling): + """ + Partial Scheduling implementation for CUDA C++ Kernels. + This class is intended to be used in combination with TritonScheduling, + and delegated to by CUDACombinedScheduling. + + It handles fusion decisions and CUDA C++ specific template code generation. + """ + + @classmethod + def get_backend_features(cls, device) -> OrderedSet[BackendFeature]: + return OrderedSet() + + def group_fn(self, sizes): + return tuple(V.graph.sizevars.simplify(sympy_product(s)) for s in sizes) + + @staticmethod + def is_cuda_cpp_template(node: BaseSchedulerNode) -> bool: + return isinstance(node, SchedulerNode) and isinstance( + node.node, CUDATemplateBuffer + ) + + def is_cuda_cpp_fused_template(self, node: BaseSchedulerNode) -> bool: + return isinstance(node, FusedSchedulerNode) and self.is_cuda_cpp_template(node) + + def can_fuse_vertical( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + if self.is_cuda_cpp_template(node1) and isinstance(node2, BaseSchedulerNode): + assert node1.node, "node1.node should not be None" + return self._can_fuse_epilogue_impl( + cast(CUDATemplateBuffer, node1.node), + [], + node2, # type: ignore[arg-type] + ) + elif self.is_cuda_cpp_fused_template(node1) and isinstance( + node2, BaseSchedulerNode + ): + assert node1.node, "node1.node should not be None" + assert node2.node, "node2.node should not be None" + fnode1 = cast(FusedSchedulerNode, node1) + return self._can_fuse_epilogue_impl( + fnode1.get_template_node(), # type: ignore[arg-type] + self._unwrap_epilogue_nodes(fnode1), + node2, # type: ignore[arg-type] + ) + + return False + + def define_kernel(self, src_code: str, node_schedule) -> str: + wrapper = V.graph.wrapper_code + if src_code in wrapper.src_to_kernel: + kernel_name = wrapper.src_to_kernel[src_code] + else: + fused_name = ( + get_fused_kernel_name(node_schedule, config.triton.descriptive_names) + if config.triton.descriptive_names + else "" + ) + + # use the original src_code as the key + kernel_hash = hashlib.sha256(src_code.encode("utf-8")).hexdigest()[:8] + if fused_name == "fused": + # no EVT kernel, use the original kernel name + kernel_name = f"cutlass_{kernel_hash}" + else: + kernel_name = f"cutlass_{fused_name}_{kernel_hash}" + wrapper.src_to_kernel[src_code] = kernel_name + src_code = src_code.replace(str(Placeholder.KERNEL_NAME), kernel_name) + + _, _, kernel_path = get_path(code_hash(src_code), "py") + + compile_wrapper = IndentedBuffer() + compile_wrapper.writeline("async_compile.cuda(r'''") + compile_wrapper.splice(src_code, strip=True) + compile_wrapper.writeline( + f"''', 'so', aot_compile={str(V.graph.aot_mode)})" + ) + + metadata_comment = f"# kernel path: {kernel_path}" + origins, detailed_origins = get_kernel_metadata(node_schedule, wrapper) + metadata_comment += "\n" + origins + "\n" + detailed_origins + wrapper.define_kernel( + kernel_name, compile_wrapper.getvalue(), metadata_comment + ) + return kernel_name + + def codegen_template( + self, + template_node: BaseSchedulerNode, + epilogue_nodes: Sequence[BaseSchedulerNode], + prologue_nodes: Sequence[BaseSchedulerNode], + ): + """ + Codegen a CUDA template, possibly with fused epilogues + """ + counters["inductor"]["cuda_epilogue_fusion_counter"] += len(epilogue_nodes) + assert self.is_cuda_cpp_template(template_node), ( + "Template node passed to CUDAScheduler.codegen_template must be a SchedulerNode that wraps a CUDATemplateBuffer" + ) + template_node = cast(SchedulerNode, template_node) + _, (_numel, rnumel) = template_node.group + assert rnumel == 1 + ctb: CUDATemplateBuffer = cast(CUDATemplateBuffer, template_node.node) + epilogue_ir_nodes: list[Buffer] = [n.node for n in epilogue_nodes] # type: ignore[misc] + assert all(isinstance(n, ComputedBuffer) for n in epilogue_ir_nodes), ( + "Epilogue nodes must all be instances of ir.ComputedBuffer" + ) + kernel, render = ctb.make_kernel_render( # type: ignore[misc] + ctb, epilogue_nodes=epilogue_nodes + ) + with kernel: + for node in [template_node, *epilogue_nodes]: + node.mark_run() + + # typically there is a codegen pass which runs after mark_run + # for this kernel we've already generated the C++ code, but we still + # need to let the kernel know about loads/stores that occur in the fused + # kernel for memory planning to properly optimize allocations + ctb.emulate_store_fn() + for node in epilogue_ir_nodes: + with V.set_ops_handler(MockCutlassHandler(V.get_ops_handler())): + assert isinstance( + node, ComputedBuffer + ) # Not sure why we need to do this again + node.get_store_function()(CutlassEVTCodegen.get_index_vars(node)) + + with V.set_kernel_handler(kernel): + src_code = render() + node_schedule = [template_node, *epilogue_nodes] + kernel_name = self.define_kernel(src_code, node_schedule) + + # debug printing values of intermediate tensors + _, call_args, arg_signatures, _ = kernel.args.python_argdefs() + debug_printer_manager = V.graph.wrapper_code.debug_printer + debug_printer_manager.set_printer_args( + call_args, kernel_name, arg_signatures, kernel + ) + with debug_printer_manager: + self.codegen_comment(node_schedule, kernel_name) + kernel.call_kernel(kernel_name, ctb) + + V.graph.removed_buffers |= kernel.removed_buffers + self.free_buffers_in_scheduler() + + @staticmethod + def _unwrap_epilogue_nodes( + fused_node: FusedSchedulerNode, + ) -> list[BaseSchedulerNode]: + nodes = fused_node.get_nodes() + template_node = fused_node.get_template_node() + assert all(n.node is not None for n in nodes), ( + "All epilogue nodes should have an IRNode" + ) + # pyrefly: ignore [redundant-cast] + return cast( + list[BaseSchedulerNode], [n for n in nodes if n.node is not template_node] + ) + + def _can_fuse_epilogue_impl( + self, + cuda_template_buffer: CUDATemplateBuffer, + existing_epilogue_nodes: list[BaseSchedulerNode], + node_to_fuse: BaseSchedulerNode, + ) -> bool: + """ + Check if the given node can be fused with the epilogue. At the moment, Kernels + support fusion with Pointwise operations, wrapped in (named) ComputedBuffer nodes. + + Args: + cuda_template_buffer : A CUDATemplateBuffer object representing the CUDA template and it's result buffer + existing_epilogue_nodes : List[SchedulerNode]: The list of already fused epilogue nodes. + node_to_fuse: The SchedulerNode node to be checked if it can be fused with the epilogue. + Returns: + - bool: True if the given node can be fused with the epilogue, False otherwise. + + """ + why = WhyNoFuseNames(cuda_template_buffer.get_name(), node_to_fuse.get_name()) + + scheduler_nodes_to_fuse = node_to_fuse.get_nodes() + + assert isinstance(cuda_template_buffer, CUDATemplateBuffer) + + # Checks on constituent nodes + for s_node in scheduler_nodes_to_fuse: + node = s_node.node + + if not isinstance(node, ComputedBuffer): + why(f"{node} is not a ComputedBuffer") + return False + elif not isinstance(node.data, Pointwise): + why(f"{node} is not a Pointwise op") + return False + elif not node.get_computed_buffer_name(): # type: ignore[attr-defined] + why(f"{node} does not have a computed buffer name") + return False + + name = node.get_computed_buffer_name() # type: ignore[attr-defined] + # dtype can differ, and strides can differ as long as they are broadcastable + if node.get_size() != cuda_template_buffer.get_size(): + why( + f"{name}'s size: {node.get_size()} differs from {cuda_template_buffer.get_name()}'s \ +size: {cuda_template_buffer.get_size()}" + ) + return False + + assert len( + existing_epilogue_nodes + ) or cuda_template_buffer.get_name() in OrderedSet( + [rd.name for rd in node_to_fuse.read_writes.reads] + ), "First epilogue node must read from cuda template buffer" + + if node_to_fuse.has_aliasing_or_mutation(): + why(f"{node_to_fuse.get_name()} has aliasing or mutation") + return False + elif node_to_fuse.is_reduction(): + why( + f"{node_to_fuse.get_name()} is a reduction which is not yet supported by EVT" + ) + return False + elif ( + not config.cuda.cutlass_epilogue_fusion_enabled + or not config.epilogue_fusion + ): + why("cutlass epilogue fusion is not enabled") + return False + elif not cuda_template_buffer.supports_epilogue_fusion: + why("epilogue fusion is only supported for TMA-enabled gemm ops") + return False + + try: + from torch._inductor.codegen.cuda.cutlass_python_evt import ( + CutlassEVTCodegen, + ) + + CutlassEVTCodegen.ir_to_evt_python_code( + cuda_template_buffer.get_name(), + existing_epilogue_nodes + list(node_to_fuse.get_nodes()), + OrderedSet(), + ) + + except NotImplementedError as e: + not_implemented_op = str(e) + if not_implemented_op.startswith("_op_"): + not_implemented_op = not_implemented_op[4:] + why( + f"Cannot fuse epilogue node {node_to_fuse} into {cuda_template_buffer.name}, \ +likely due to unsupported operation: {not_implemented_op}" # noqa: G004, B950 + ) + return False + else: # Likely due to unsupported dtype. + why( + f"Cannot fuse epilogue node {node_to_fuse} into {cuda_template_buffer.name}. \ +Reason: {not_implemented_op}" # noqa: G004, B950 + ) + return False + + return True diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cuda_env.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cuda_env.py new file mode 100644 index 0000000000000000000000000000000000000000..9ca3afbd9ca57a7aed17ffe69d074c667dd2c09f --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cuda_env.py @@ -0,0 +1,55 @@ +import functools +import logging +import shutil +from typing import Optional + +import torch +from torch._inductor.utils import clear_on_fresh_cache + +from ... import config + + +log = logging.getLogger(__name__) + + +@clear_on_fresh_cache +@functools.lru_cache(1) +def get_cuda_arch() -> Optional[str]: + try: + cuda_arch = config.cuda.arch + if cuda_arch is None: + # Get Compute Capability of the first Visible device + major, minor = torch.cuda.get_device_capability(0) + return str(major * 10 + minor) + return str(cuda_arch) + except Exception: + log.exception("Error getting cuda arch") + return None + + +@clear_on_fresh_cache +@functools.lru_cache(1) +def is_datacenter_blackwell_arch() -> bool: + arch = get_cuda_arch() + if arch is None: + return False + arch_number = int(arch) + return arch_number >= 100 and arch_number < 110 + + +@clear_on_fresh_cache +@functools.lru_cache(1) +def get_cuda_version() -> Optional[str]: + try: + cuda_version = config.cuda.version + if cuda_version is None: + cuda_version = torch.version.cuda + return cuda_version + except Exception: + log.exception("Error getting cuda version") + return None + + +@functools.cache +def nvcc_exist(nvcc_path: Optional[str] = "nvcc") -> bool: + return nvcc_path is not None and shutil.which(nvcc_path) is not None diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cuda_kernel.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cuda_kernel.py new file mode 100644 index 0000000000000000000000000000000000000000..97643ef00a7bd63aa6887c5ee6645f1c788e45fd --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cuda_kernel.py @@ -0,0 +1,687 @@ +# mypy: allow-untyped-defs +import functools +import itertools +import logging +from collections import defaultdict +from collections.abc import Callable +from dataclasses import dataclass +from typing import Any, Literal, Optional, TYPE_CHECKING, Union + +from sympy import Expr, symbols + +import torch._inductor.config as config +from torch import dtype as torch_dtype +from torch._inductor.codegen.cpp_wrapper_cpu import CppWrapperCpu +from torch._inductor.scheduler import BaseSchedulerNode +from torch._inductor.utils import do_bench_using_profiling, OrderedSet, Placeholder +from torch.utils._sympy.value_ranges import ValueRanges + +from .cutlass_utils import DTYPE_TO_CUTLASS_TYPE + + +if TYPE_CHECKING: + from .cuda_template import ArgInfo + +from ...autotune_process import CUDABenchmarkRequest +from ...ir import ( + Buffer, + ChoiceCaller, + CUDATemplateBuffer, + IRNode, + Layout, + PrimitiveInfoType, + ShapeAsConstantBuffer, + TensorBox, +) +from ...utils import sympy_product +from ...virtualized import V +from ..common import ( + CSEVariable, + IndentedBuffer, + Kernel, + OpOverrides, + WorkspaceArg, + WorkspaceZeroMode, +) +from ..cpp_utils import CppPrinter, DTYPE_TO_CPP + + +if TYPE_CHECKING: + from torch._inductor.codegen.cuda.cuda_template import CUDATemplate + +log = logging.getLogger(__name__) + +cexpr = CppPrinter().doprint + + +def _normalize_idx(index: int, total_length: int) -> int: + return index if index >= 0 else index + total_length + + +ValidLayoutSymbols = Literal["M", "N", "K", "B", "lda", "ldb", "ldc", "ldd"] +ValidLayoutAttrs = Literal["size", "stride"] + + +@dataclass(frozen=True) +class LayoutArg: + node: IRNode + symbol: ValidLayoutSymbols + attr: ValidLayoutAttrs + dim: int + + def matches(self, node, attr, dim) -> bool: + return self.node == node and self.attr == attr and self.dim == dim + + +class CUDAKernel(Kernel): + """ + Baseclass for CUDA / Cutlass based Kernels + """ + + overrides = OpOverrides # type: ignore[assignment] + + def __init__(self, *args, **kwargs) -> None: + super().__init__(*args, **kwargs) + self.layout_args: dict[str, list[LayoutArg]] = defaultdict(list) + self.size_args: list[Union[Expr, int]] = [] + # Mapping from arg name to IRNode. + self.named_nodes: dict[str, IRNode] = {} + + def find_symbol( + self, node: IRNode, attr: ValidLayoutAttrs, dim: int + ) -> Optional[str]: + arg = self.find_layout_arg(node, attr, dim) + return arg.symbol if arg else None + + def find_layout_arg( + self, node: IRNode, attr: ValidLayoutAttrs, dim: int + ) -> Optional[LayoutArg]: + matches = [ + arg + for arg in itertools.chain.from_iterable(self.layout_args.values()) + if arg.matches(node, attr, dim) + ] + if len(matches) >= 1: + # Verify all matches have the same node, attribute, and dimension + # And if they come from the same node, whichever symbol we use is fine. + # if in runtime the logic changes, this would trigger guard + first_match = matches[0] + if not all( + match.node == first_match.node + and match.attr == first_match.attr + and match.dim == first_match.dim + for match in matches + ): + raise AssertionError("All matching layout args should be identical") + return first_match + return None + + def add_layout_arg( + self, symbol: ValidLayoutSymbols, node: IRNode, attr: ValidLayoutAttrs, dim: int + ): + arg = LayoutArg(node, symbol, attr, dim) + self.layout_args[symbol].append(arg) + + def init_layout_args(self) -> None: + X = self.named_nodes["X"] + W = self.named_nodes["W"] + Y = self.named_nodes["Y"] + Bias = self.named_nodes.get("Bias", None) + x_mdim = _normalize_idx(-2, len(X.get_size())) + x_kdim = _normalize_idx(-1, len(X.get_size())) + w_kdim = _normalize_idx(-2, len(W.get_size())) + w_ndim = _normalize_idx(-1, len(W.get_size())) + y_mdim = _normalize_idx(-2, len(Y.get_size())) + y_ndim = _normalize_idx(-1, len(Y.get_size())) + self.add_layout_arg("M", X, "size", x_mdim) + self.add_layout_arg("K", X, "size", x_kdim) + self.add_layout_arg("K", W, "size", w_kdim) + self.add_layout_arg("N", W, "size", w_ndim) + self.add_layout_arg("M", Y, "size", y_mdim) + self.add_layout_arg("N", Y, "size", y_ndim) + if len(X.get_size()) > 2: + self.add_layout_arg("B", X, "size", 0) + + lda_dim = self.find_ld_idx(X) + ldb_dim = self.find_ld_idx(W) + ldc_dim = self.find_ld_idx(Bias) if Bias else None + ldd_dim = self.find_ld_idx(Y) + self.add_layout_arg("lda", X, "stride", lda_dim) + self.add_layout_arg("ldb", W, "stride", ldb_dim) + if Bias is not None and ldc_dim is not None: + self.add_layout_arg("ldc", Bias, "stride", ldc_dim) + self.add_layout_arg("ldd", Y, "stride", ldd_dim) + + def get_layout_args(self) -> tuple[Union[Expr, int], ...]: + X = self.named_nodes["X"] + W = self.named_nodes["W"] + Y = self.named_nodes["Y"] + Bias = self.named_nodes.get("Bias", None) + mdim = _normalize_idx(-2, len(X.get_size())) + ndim = _normalize_idx(-1, len(W.get_size())) + kdim = _normalize_idx(-1, len(X.get_size())) + + def get_ld(node) -> Union[Expr, int]: + dim = self.find_ld_idx(node) + return node.get_stride()[dim] + + M = X.get_size()[mdim] + N = W.get_size()[ndim] + K = X.get_size()[kdim] + B = X.get_size()[0] if len(X.get_size()) > 2 else 1 + LDA = get_ld(X) + LDB = get_ld(W) + LDC = get_ld(Bias) if Bias else 0 + LDD = get_ld(Y) + return (M, N, K, B, LDA, LDB, LDC, LDD) + + def get_dynamic_shape_args(self) -> list[Union[Expr, int]]: + return [*self.get_layout_args(), *self.size_args] + + def get_offset_args(self) -> list[Expr]: + return [node.get_layout().offset for node in self.named_nodes.values()] + + @staticmethod + def find_ld_idx(node: IRNode) -> int: + strides = node.get_stride() + # Handle 1D tensor case + if V.graph.sizevars.statically_known_equals(strides[-1], 1): + return _normalize_idx(-2, len(strides)) + + assert V.graph.sizevars.statically_known_equals(strides[-2], 1), strides[-2] + return _normalize_idx(-1, len(strides)) + + +class CUDATemplateKernel(CUDAKernel): + """ + Template kernels defined by CUDA / Cutlass in C++. + """ + + _EXTRA_CPP_ARGS = "size_t* workspace_size, uint8_t* workspace, cudaStream_t stream" + + def __init__( + self, + kernel_name: str, + runtime_arg_info: list["ArgInfo"], + runtime_arg_values: list[Any], + ) -> None: + """ + Initializes a new instance of the CUDATemplateKernel class. + + Args: + kernel_name (str): The name of the kernel. + """ + super().__init__() + self.kernel_name = kernel_name + self.runtime_arg_info = runtime_arg_info + self.runtime_arg_values = runtime_arg_values + + def check_not_null(self, node: IRNode) -> str: + """ + Generates code to check that a node is not null. + """ + if node is None: + return "" + + size_str = self.size(node, 0, -1) + name_str = self.arg_name(node) + if name_str is None: + return "" + + res = IndentedBuffer(initial_indent=2) + res.tabwidth = 1 + res.splice( + f""" + {{ + if (!{name_str}) {{ + int64_t {name_str}_size = {size_str}; + if ({name_str}_size > 0) {{ + throw std::runtime_error("input {name_str} is null but size is not 0!"); + }} + }} + }} + """ + ) + return res.getvalue() + + def get_signature(self) -> str: + return self.signature + + def def_kernel( + self, + inputs: list[IRNode], + outputs: list[IRNode], + names_str: str = "", + input_reorder: Optional[list[int]] = None, + ) -> str: + """ + Hook called from template code to generate function definition and + needed args. + + Args: + inputs: List of input IRNodes + outputs: List of output IRNodes + names_str: Comma separated list of input + output argument names. + input_reorder: The actual order of input nodes. + e.g. The template might have input argument defined as [X, W, Bias], + and the actual input passed into this template could be [Bias, X, W]. + In this case, the `input_reorder` would be [2, 0, 1]. + additional_size_args: Additional size arguments for epilogue inputs + """ + # NB: name order matters here, it's used to match up offsets + names = [x.strip() for x in names_str.strip().split(",")] + if len(inputs) + len(outputs) != len(names): + raise RuntimeError( + f"{len(inputs) + len(outputs)=} != {len(names)=}, {inputs=}, {outputs=}, {names=}" + ) + + if input_reorder is not None: + assert len(inputs) == len(input_reorder) + else: + input_reorder = list(range(len(inputs))) + + for idx in input_reorder: + name = names[idx] + node = inputs[idx] + if node is not None: + self.named_nodes[name] = node + self.args.input_buffers[node.get_name()] = name + + free_symbols: OrderedSet[Expr] = OrderedSet() + for name, node in zip(names[len(inputs) : len(inputs) + len(outputs)], outputs): + if node is not None: + # NB: named nodes must be populated in the order of names + self.named_nodes[name] = node + self.args.output_buffers[node.get_name()] = name + + if name not in ( + "X", + "W", + "Bias", + "Y", + ): # we handle these symbolic shapes explicitly + for expr in itertools.chain(node.get_size(), node.get_stride()): + if isinstance(expr, Expr): + for s in expr.free_symbols: + free_symbols.add(s) # type: ignore[arg-type] + + arg_defs, *_ = self.args.cpp_argdefs(DTYPE_TO_CUTLASS_TYPE) + + self.init_layout_args() + size_vars = ["M", "N", "K", "B", "lda", "ldb", "ldc", "ldd"] + size_vars.extend(str(s) for s in free_symbols) + self.size_args.extend(free_symbols) + size_args = [f"const int {s}" for s in size_vars] + offset_args = [f"const int {name}_offset" for name in self.named_nodes] + runtime_arg_decls = ",".join( + [f"{arg.ty} {arg.name}" for arg in self.runtime_arg_info] + ) + if runtime_arg_decls: + runtime_arg_decls += ", " + + signature = ( + f"int {self.kernel_name}({', '.join(arg_defs + size_args + offset_args)},\ + {runtime_arg_decls}{self._EXTRA_CPP_ARGS})" + ) + self.signature = signature + return signature + + def call_kernel( + self, + name: str, + node: "CUDATemplateBuffer", # type: ignore[name-defined] + ) -> None: + """ + Generates code to call the kernel through V.graph.wrapper_code. + used from within torch._inductor.wrapper.PythonWrapperCodegen + + name: Name of kernel function. + node: The CUDATemplateBuffer node which contains information about the kernel, it's fused epilogue nodes + as well as all required inputs and outputs. + """ + wrapper = V.graph.wrapper_code + + arg_types: list[Any] + if V.graph.cpp_wrapper: + # Make sure we initialize these kernels since they're exported as + # C-style symbol names. + assert isinstance(wrapper, CppWrapperCpu) + wrapper.initialized_kernels[name] = self + # We always originally initialize name with "KERNEL_NAME". So, we + # we replace with the real kernel name passed as an arg to this function. + self.signature = self.signature.replace(str(Placeholder.KERNEL_NAME), name) + _, call_args, arg_types = self.args.cpp_argdefs(DTYPE_TO_CUTLASS_TYPE) + else: + _, call_args, _, arg_types = self.args.python_argdefs() + + dynamic_shape_args = self.get_dynamic_shape_args() + offset_args = self.get_offset_args() + call_args.extend(dynamic_shape_args) # type: ignore[arg-type] + call_args.extend(offset_args) # type: ignore[arg-type] + for arg in self.runtime_arg_values: + call_args.append(str(arg)) + arg_types.extend("const int" for _ in dynamic_shape_args) + arg_types.extend("const int" for _ in offset_args) + for arg in self.runtime_arg_info: + arg_types.append(arg.ty) + # dynamo wraps unspec variable as 0d CPU tensor, need convert to scalar + for i in range(len(call_args)): + if V.graph.is_unspec_arg(call_args[i]): + call_args[i] = call_args[i] + ".item()" + elif isinstance(arg_types[i], torch_dtype): + call_args[i] = ( + call_args[i] + if V.graph.cpp_wrapper + else f"c_void_p({call_args[i]}.data_ptr())" + ) + + # workspace_size ptr is NULL to mark this call is not intended for retrieving workspace_size. + # workspace_size should have already been retrieved prior to this call. + # workspace_size is here. + call_args.append("nullptr" if V.graph.cpp_wrapper else "None") + if V.graph.cpp_wrapper: + arg_types.append("size_t*") + + if node.get_workspace_size() > 0: + ws = WorkspaceArg( + count=node.get_workspace_size(), + device=V.graph.get_current_device_or_throw(), + zero_mode=WorkspaceZeroMode.UNINITIALIZED, + outer_name=WorkspaceArg.unique_name(), + ) + wrapper.generate_workspace_allocation(ws) + workspace = str(ws.outer_name) + call_args.append( + workspace + if V.graph.cpp_wrapper + else f"c_void_p({workspace}.data_ptr())" + ) + else: + ws = None + call_args.append("nullptr" if V.graph.cpp_wrapper else "None") + if V.graph.cpp_wrapper: + arg_types.append("uint8_t*") + + wrapper.generate_kernel_call( + name, + call_args, + triton=False, + arg_types=arg_types, + ) + if ws: + wrapper.generate_workspace_deallocation(ws) + + def dtype(self, node: IRNode) -> Optional[str]: + """ + Generates code which represents dtype of a given node. + """ + + if node is None: + return "void" + return DTYPE_TO_CPP.get(node.get_layout().dtype) + + def cutlass_dtype(self, node: IRNode, default_dtype="void") -> Optional[str]: + # Helper method, called into from CUTLASSGemmTemplate + if node is None: + return default_dtype + from torch._inductor.codegen.cuda.cuda_template import CUTLASSTemplate + + return CUTLASSTemplate._DTYPE_TO_CUTLASS[node.get_layout().dtype] + + def max_valid_index(self, node: IRNode, default=-1): + # Helper method, called into from CUTLASSGemmTemplate + if node is None: + return default + max_valid_offset = 0 + for i in range(len(node.get_size())): + max_valid_offset += (node.get_size()[i] - 1) * node.get_stride()[i] + return max_valid_offset + + def ptr(self, node: IRNode) -> str: + """ + Generates code which represents pointer of a given node. + """ + + if node is None: + return "nullptr" + arg_name = self.arg_name(node) + if arg_name is None: + return "nullptr" + return f"{arg_name} + {arg_name}_offset" + + def size( + self, + node: IRNode, + start_index: int, + end_index: Optional[int] = None, + default_value: int = 0, + ) -> str: + """ + Hook called from template code to get the size of an arg. + Generates code which represents size of a given node in [start_index, end_index). + If node is None, returns default_value. + + TODO: Will add needed args to pass it in if it is dynamic. + """ + + if node is None: + return str(default_value) + + start_index = _normalize_idx(start_index, len(node.get_size())) + if end_index is None: + end_index = start_index + end_index = _normalize_idx(end_index, len(node.get_size())) + sizes = [ + self.find_symbol(node, "size", dim=i) or node.get_size()[i] + for i in range(start_index, end_index + 1) + ] + if len(sizes) == 0: + return str(default_value) + + sizes = [symbols(v) if isinstance(v, str) else v for v in sizes] + val = sympy_product(sizes) + return val + + def stride(self, node: IRNode, index: int, default_value: int = 0) -> str: + """ + Hook called from template code to get the stride of an arg. + Generates code which represents stride of a given node at index. + If node is None, returns default_value. + + TODO: Will add needed args to pass it in if it is dynamic. + """ + + if node is None: + return str(default_value) + + index = _normalize_idx(index, len(node.get_size())) + if index < 0: + return str(default_value) + + stride = node.get_stride()[index] + if V.graph.sizevars.statically_known_leq(stride, 1): + return str(stride) + return self.find_symbol(node, "stride", dim=index) or str(stride) + + def batch_stride(self, node: IRNode, default_value: int = 0) -> str: + """ + Hook called from template code to get the batch stride of an arg. + Returns 0 if batch dim is not present. + + This method assumes that batch stride is the largest stride. + """ + + if node is None: + return str(default_value) + + if len(node.get_size()) < 3: + return str(default_value) + + batch_stride = node.get_stride()[0] + if V.graph.sizevars.statically_known_leq(batch_stride, 1): + return str(batch_stride) + + return "{}*{}".format( + self.find_symbol(node, "size", dim=1) or node.get_size()[1], + self.find_symbol(node, "size", dim=2) or node.get_size()[2], + ) + + def row_or_column_stride(self, node: IRNode, default_value: int = 0) -> str: + """ + Hook called from template code to get the row or column stride of an arg. + This is required by some CUTLASS 2.X APIs. + If the node is in row_major, it returns stride[-2]. + If the node is in column_major, it returns stride[-1]. + + TODO: Will add needed args to pass it in if it is dynamic. + """ + + if node is None or len(node.get_stride()) < 2: + return str(default_value) + + stride0 = node.get_stride()[-1] + stride1 = node.get_stride()[-2] + if stride0 == 1: + return cexpr(self.rename_indexing(stride1)) + elif stride1 == 1: + return cexpr(self.rename_indexing(stride0)) + else: + raise RuntimeError( + f"At least 1 stride should be 1. Strides: {node.get_stride()=}" + ) + + def load(self, name: str, index: Expr, mode: Any = None) -> CSEVariable: + """ + Mock load function for memory planning to optimize allocations properly. + """ + return self.create_cse_var(name, bounds=ValueRanges.unknown()) + + def store(self, name: str, index: Expr, value: Any, mode: Any = None) -> None: + """ + Mock store function for memory planning to optimize allocations properly. + """ + self.store_buffer_names.add(name) + + +class CUDATemplateCaller(ChoiceCaller): + """ + CUDATemplateCaller + + This class represents a caller for CUDA template kernels. It is a subclass of ChoiceCaller. + Attributes: + name (str): The name of the caller. + category (str): The category of the caller. + bmreq (CUDABenchmarkRequest): The benchmark request for the caller. + template_buffer (CUDATemplateBuffer): The template buffer for the caller. + """ + + def __init__( + self, + name: str, + category: str, + input_nodes: list[Buffer], + layout: Layout, + make_kernel_render: Callable[ + [CUDATemplateBuffer, Optional[list[BaseSchedulerNode]]], + tuple[CUDATemplateKernel, functools.partial[str]], + ], + bmreq: CUDABenchmarkRequest, + supports_epilogue_fusion: bool, + template: "CUDATemplate", # type: ignore[name-defined] + info_kwargs: Optional[ + dict[str, Union[PrimitiveInfoType, list[PrimitiveInfoType]]] + ], # type: ignore[type-arg] + description: str, + ) -> None: + super().__init__(name, input_nodes, layout, description) + self.category = category + self.make_kernel_render = make_kernel_render + self.bmreq = bmreq + self.supports_epilogue_fusion = supports_epilogue_fusion + self.template = template + self.info_kwargs = info_kwargs + + def precompile(self) -> None: + assert self.bmreq is not None + self.bmreq.precompile() + + def benchmark(self, *args, out) -> float: + assert self.bmreq is not None + if config.profile_bandwidth_with_do_bench_using_profiling: + algo = self.bmreq.make_run_fn(*args, out=out) + return do_bench_using_profiling(algo) + return self.bmreq.benchmark(*args, out=out) + + def __str__(self) -> str: + return f"CUDATemplateCaller(source_file={self.bmreq.source_file})" + + def call_name(self) -> str: + return f"cuda_template_kernels.{self.name}" + + def kernel_hash_key(self) -> str: + """ + Return kernel hash key that does not depend on swizzle. + """ + return "-".join( + [ + self.category, + self.bmreq.hash_key, + ] + ) + + def hash_key(self) -> str: + """ + Return kernel hash key that does not depend on swizzle. + """ + swizzle_str: str = ( + str(self.info_kwargs.get("swizzle")) + if isinstance(self.info_kwargs, dict) + else "None" + ) + return "-".join( + [ + self.category, + self.bmreq.hash_key, + swizzle_str, + ] + ) + + def info_dict(self) -> dict[str, Union[PrimitiveInfoType, list[PrimitiveInfoType]]]: + """ + Information returned here is logged to the autotune log file when that is enabled. + + In general, we should avoid calling this function as it is expensive to compute, + and can add up very fast. + """ + if self.info_kwargs is not None and "op" in self.info_kwargs: + op: Any = self.info_kwargs["op"] + return { + "backend": "CUDA", + "op_type": type(op).__name__, + "op_conf_name": str(op.configuration_name()), + "op_arch": str(op.arch), + "tile_shape": str(op.tile_description.tile_shape), + "epilogue_schedule": str(op.epilogue_schedule), + "kernel_schedule": str(op.kernel_schedule), + "element_accumulator": str(op.accumulator_type()), + "op_name": str(op.procedural_name()), + "instruction_shape": str( + op.tile_description.math_instruction.instruction_shape + ), + "swizzle": str(self.info_kwargs["swizzle"]), + } + else: + return {"backend": "CUDA", "op_type": "unknown"} + + def output_node(self) -> Union[TensorBox, ShapeAsConstantBuffer]: + self.bmreq.update_workspace_size() + return TensorBox.create( + CUDATemplateBuffer( + layout=self.layout, + inputs=self.input_nodes, + make_kernel_render=self.make_kernel_render, + workspace_size=self.bmreq.workspace_size, + supports_epilogue_fusion=self.supports_epilogue_fusion, + template=self.template, + ) + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cuda_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cuda_template.py new file mode 100644 index 0000000000000000000000000000000000000000..79dfa9c6c391fe10ce2c4a657aea83b1639f4f5d --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cuda_template.py @@ -0,0 +1,394 @@ +# mypy: allow-untyped-defs +import functools +import hashlib +import itertools +from dataclasses import dataclass +from typing import Any, Optional, TYPE_CHECKING, Union +from typing_extensions import override +from unittest.mock import patch + +import sympy + +import torch +from torch._inductor import config +from torch._inductor.utils import clear_on_fresh_cache, Placeholder +from torch._logging import getArtifactLogger + +from ...autotune_process import CUDABenchmarkRequest, TensorMeta +from ...ir import Buffer, CUDATemplateBuffer, IRNode, Layout +from ...utils import IndentedBuffer, unique +from ...virtualized import V +from ..common import KernelTemplate +from .cuda_kernel import CUDATemplateCaller, CUDATemplateKernel +from .cutlass_utils import DTYPE_TO_CUTLASS_TYPE + + +if TYPE_CHECKING: + from ...scheduler import BaseSchedulerNode # noqa: TC004 +else: + BaseSchedulerNode = Any + +GemmOperation = Any + +autotuning_log = getArtifactLogger(__name__, "autotuning") + + +@dataclass(frozen=True) +class ArgInfo: + name: str + ty: str + + +@clear_on_fresh_cache +class CUDATemplate(KernelTemplate): + index_counter = itertools.count() + # dict of cache key to (code, size_args) + code_cache: dict[str, tuple[str, tuple[int, ...], tuple[int, ...]]] = {} + cache_clear = staticmethod(code_cache.clear) + + def __init__( + self, + name: str, + input_nodes: list[Buffer], + layout: Layout, + input_reorder: Optional[list[int]] = None, + ) -> None: + """ + Baseclass for CUDA C++ Templates, derived from KernelTemplate. + Not to be instantiated directly. + + Args: + name (str): The name of the CUDATemplate object. + input_nodes (List[IRNode]): A list of input IRNodes. + layout (Layout): The layout of the output buffer / tensor. + input_reorder (Optional[List[int]]): An optional list that specifies + the order of the input nodes. + """ + super().__init__(name) + self.input_nodes = input_nodes + self.output_node: Buffer = Buffer(name="buf_out", layout=layout) + self.input_reorder = input_reorder + self.layout = layout + + @classmethod + @functools.lru_cache(None) + # pyrefly: ignore [bad-override] + def _template_from_string(cls, source: str) -> Any: + return KernelTemplate._template_from_string(source) + + @staticmethod + def supports_epilogue_fusion(op: GemmOperation) -> bool: + return False + + def make_key(self, name: str, input_key: str, layout_repr: str) -> str: + """ + Make a key for the code cache. The idea of the method is to cache + everything that matters but doesn't include runtime param values, i.e., + self.get_runtime_arg_values(). + + Args: + kwargs: Additional keyword arguments. Including op (GemmOperation). + """ + return hashlib.sha256( + str( + ( + input_key, + self.input_reorder, + # output layout, same as self.output_node.get_layout() + layout_repr, + self.get_runtime_arg_info(), + name, + ) + ).encode("utf-8") + ).hexdigest() + + def generate_code_and_args( + self, name: str, input_key: str, layout_repr: str, **kwargs + ) -> tuple[str, tuple[int, ...]]: + """ + Generate code and args with caching. We cache the code even if runtime + args are different. + """ + key: Optional[str] = None + if config.cuda.enable_caching_codegen: + key = self.make_key(name=name, input_key=input_key, layout_repr=layout_repr) + + if key is not None and key in self.code_cache: + code, size_args, offset_args = self.code_cache[key] + extra_args = tuple( + list(size_args) + + list(offset_args) + + list(self.get_runtime_arg_values(**kwargs)) + ) + return code, extra_args + + kernel_name = str(Placeholder.KERNEL_NAME) + kernel = CUDATemplateKernel( + kernel_name=kernel_name, + runtime_arg_info=self.get_runtime_arg_info(), + runtime_arg_values=self.get_runtime_arg_values(**kwargs), + ) + with patch.object(V.graph, "get_dtype", self._fake_get_dtype(self.output_node)): + code = self.render(kernel=kernel, **kwargs) + _, call_args, _, _ = kernel.args.python_argdefs() + autotuning_log.debug("Generated Code:\n%s", code) + autotuning_log.debug( + "Args: cpp_argdefs: %s, python_argdefs: %s", + kernel.args.cpp_argdefs(DTYPE_TO_CUTLASS_TYPE), + kernel.args.python_argdefs(), + ) + + input_reorder = ( + self.input_reorder + if self.input_reorder is not None + else list(range(len(self.input_nodes))) + ) + expected_args = list( + unique(self.input_nodes[idx].get_name() for idx in input_reorder) + ) + expected_args.extend([self.output_node.get_name()]) + assert list(call_args)[: len(expected_args)] == expected_args, ( + call_args, + expected_args, + ) + V.graph.sizevars.size_hints(map(sympy.expand, call_args[len(expected_args) :])) + size_args = V.graph.sizevars.size_hints(kernel.get_dynamic_shape_args()) + offset_args = V.graph.sizevars.size_hints(kernel.get_offset_args()) + + if key is not None: + self.code_cache[key] = code, size_args, offset_args + + # extra args has runtime params, which shouldn't be cached + extra_args = tuple( + list(size_args) + list(offset_args) + self.get_runtime_arg_values(**kwargs) + ) + + return code, extra_args + + def generate( # type: ignore[override] + self, + name: str, + description: str, + input_key: str, + layout_repr: str, + input_tensor_meta: Union[TensorMeta, list[TensorMeta]], + output_tensor_meta: Union[TensorMeta, list[TensorMeta]], + **kwargs, + ) -> CUDATemplateCaller: + """ + Generates the CUDA template caller object for the given GEMM template and operation. + This CUDATemplateCaller may be used to call and benchmark the generated CUDA kernel + in a standalone manner to enable Autotuning. + + Args: + description: op name followed by swizzle. + kwargs: Additional keyword arguments. + + Returns: + A CUDATemplateCaller object representing the generated CUDA template caller. + """ + code, extra_args = self.generate_code_and_args( + name=name, + input_key=input_key, + layout_repr=layout_repr, + **kwargs, + ) + + # not caching since kernel name is needed below + kernel_hash = hashlib.sha256(code.encode("utf-8")).hexdigest()[:8] + kernel_name = f"cutlass_{kernel_hash}" + code = code.replace(self.name, kernel_name) + + # create the BenchmarkRequest + bmreq = CUDABenchmarkRequest( + kernel_name=kernel_name, + input_tensor_meta=input_tensor_meta, + output_tensor_meta=output_tensor_meta, + extra_args=extra_args, + source_code=code, + ) + + # kwargs has "op" argument in case of CUTLASSGemmTemplate + op = kwargs["op"] + if not op: + supports_epilogue_fusion = False + else: + # epilogue fusion is only supported for TMA kernels + supports_epilogue_fusion = self.supports_epilogue_fusion(op) + + def make_kernel_render( + template_node: CUDATemplateBuffer, + epilogue_nodes: Optional[list[BaseSchedulerNode]] = None, + ) -> tuple[CUDATemplateKernel, functools.partial[str]]: + assert supports_epilogue_fusion or not epilogue_nodes, ( + "epilogue fusion is not supported for this kernel" + ) + kernel = CUDATemplateKernel( + kernel_name=str(Placeholder.KERNEL_NAME), + runtime_arg_info=self.get_runtime_arg_info(), + runtime_arg_values=self.get_runtime_arg_values(**kwargs), + ) + render = functools.partial( + self.render, + kernel=kernel, + template_buffer_node=template_node, + epilogue_nodes=epilogue_nodes, + **kwargs, # includes "op" argument in case of CUTLASSGemmTemplate + ) + return kernel, render + + return CUDATemplateCaller( + kernel_name, + "cutlass_gemm", + self.input_nodes, + self.output_node.get_layout(), + make_kernel_render, + bmreq, + supports_epilogue_fusion, + self, + kwargs, + description, + ) + + def header(self) -> IndentedBuffer: + res = IndentedBuffer() + res.splice( + """ + #include + #include + #include + #include + #include + """ + ) + return res + + def globals(self) -> IndentedBuffer: + res = IndentedBuffer() + res.splice( + """ + // We compile all models with -fvisibility=hidden. Any symbols that need to be + // exposed in the final shared library must be declared with PT_EXPORT to make + // them visible. + #ifdef __GNUC__ // Applies to any compiler with GNU extensions (clang and g++) + #define PT_EXPORT __attribute__((__visibility__("default"))) + #else + #ifdef _WIN32 + #define PT_EXPORT __declspec(dllexport) + #else + #define PT_EXPORT + #endif + #endif + """ + ) + return res + + def render(self, **kwargs) -> str: + raise NotImplementedError + + def get_runtime_arg_info(self) -> list[ArgInfo]: + return [] + + def get_runtime_arg_values(self, **kwargs) -> list[Any]: + return [] + + +class CUTLASSTemplate(CUDATemplate): + """ + CUTLASSTemplate is a class that provides a template for generating CUTLASS Templates. Used as a baseclass for the + CUTLASSGemmTemplate, providing functionality that might also be relevant for non-GEMM CUTLASS Kernels. + """ + + def header(self) -> IndentedBuffer: + res = super().header() + res.splice( + """ + #include "cute/tensor.hpp" + #include "cutlass/cutlass.h" + #include "cutlass/numeric_types.h" + #include "cutlass/tensor_ref.h" + #include "cutlass/util/host_tensor.h" + #include "cutlass/util/reference/host/tensor_fill.h" + #include "cutlass/util/reference/device/tensor_fill.h" + #include "cutlass/util/device_memory.h" + """ + ) + return res + + def globals(self) -> IndentedBuffer: + res = super().globals() + res.splice( + """ + using namespace cute; + #define CUTLASS_CHECK(status) \\ + { \\ + cutlass::Status error = status; \\ + if (error != cutlass::Status::kSuccess) { \\ + auto msg = std::string("[") + __FILE__ + "] Got cutlass error: " + \\ + cutlassGetStatusString(error) + " at: " + std::to_string(__LINE__); \\ + throw std::runtime_error(msg); \\ + } \\ + } + + // Used as pass-through functor in EVT just for type casting / rounding + template + struct identity_op { + CUTLASS_HOST_DEVICE + T operator()(T val) const { return val; } + }; + + """ + ) + return res + + def cute_int(self, int_str: str, var_name: str) -> str: + res = "" + if int_str in ("1", "1L"): + res = "cute::Int<1>{}" + else: + res = int_str + + return f"{res} /* {var_name} */" + + _DTYPE_TO_CUTLASS = { + torch.float32: "float", + torch.float64: "double", + torch.float16: "cutlass::half_t", + torch.int32: "int32_t", + torch.int16: "int16_t", + torch.int8: "int8_t", + torch.uint8: "uint8_t", + torch.bool: "bool", + torch.bfloat16: "cutlass::bfloat16_t", + torch.float8_e4m3fn: "cutlass::float_e4m3_t", + } + + _DTYPE_TO_CUTLASS_SPARSE_META = { + torch.int32: "uint32_t", + torch.int16: "uint16_t", + } + + def cutlass_type_cast(self, node: IRNode, ptr: str) -> str: + if node is None: + return ptr + else: + return f"({self._DTYPE_TO_CUTLASS.get(node.get_dtype())}*)({ptr})" + + def cutlass_sparse_meta_type_cast(self, node: IRNode, ptr: str) -> str: + if node is None: + return ptr + else: + return ( + f"({self._DTYPE_TO_CUTLASS_SPARSE_META.get(node.get_dtype())}*)({ptr})" + ) + + @override + def get_runtime_arg_info(self) -> list[ArgInfo]: + return [ArgInfo("swizzle", "const uint8_t")] + + @override + def get_runtime_arg_values(self, **kwargs) -> list[Any]: + """ + Helper method to retrieve runtime args from generate kwargs + """ + return [kwargs[arg.name] for arg in self.get_runtime_arg_info()] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_cache.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_cache.py new file mode 100644 index 0000000000000000000000000000000000000000..66db98867b4131631540d262b4e7eb4c932cc02a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_cache.py @@ -0,0 +1,119 @@ +# mypy: allow-untyped-defs +import functools +import hashlib +import inspect +import json +import logging +import os +import time +from typing import Any, Optional + +import torch._inductor.config as config +from torch._inductor.codecache import cutlass_key +from torch._inductor.codegen.cuda import cutlass_utils, serialization +from torch._inductor.codegen.cuda.cuda_env import get_cuda_arch, get_cuda_version +from torch._inductor.codegen.cuda.serialization import get_cutlass_operation_serializer +from torch._inductor.runtime.cache_dir_utils import cache_dir +from torch._inductor.utils import clear_on_fresh_cache + + +log = logging.getLogger(__name__) + + +CONFIG_PREFIX: str = "configs" + + +def get_config_request_key( + arch: str, + cuda_version: str, + instantiation_level: str, +) -> str: + """ + Return a key for the full ops, based on cutlass key, arch, cuda version, instantiation level, and serialization.py file hash. + """ + + # Get hash of serialization.py and cutlass_utils.py files using their module file paths + def get_file_hash(file_module): + file_path = inspect.getfile(file_module) + with open(file_path, "rb") as f: + return hashlib.sha256(f.read()).hexdigest() + + serialization_hash = get_file_hash(serialization) + cutlass_utils_hash = get_file_hash(cutlass_utils) + + hash_target = "-".join( + [ + cutlass_key().hex(), + arch, + cuda_version, + instantiation_level, + serialization_hash, + cutlass_utils_hash, + ] + ) + return hashlib.sha256(hash_target.encode("utf-8")).hexdigest()[0:8] + + +def _generate_config_filename(request_key: str) -> str: + """ + Generate a filename for the full ops. + """ + return f"{CONFIG_PREFIX}_{request_key}.json" + + +@clear_on_fresh_cache +@functools.cache +def maybe_fetch_ops() -> Optional[list[Any]]: + """ + Fetch ops from databases. + """ + if config.force_disable_caches: + return None + + # setup + arch: str = get_cuda_arch() + # get_cuda_version might return "12.4.0" or "12.4" + # but we want to use "12.4" + version: str = ".".join(get_cuda_version().split(".")[:2]) + instantiation_level: str = config.cuda.cutlass_instantiation_level + + # filename and filepath + request_key: str = get_config_request_key(arch, version, instantiation_level) + filename: str = _generate_config_filename(request_key) + filepath: str = os.path.join(cache_dir(), filename) + + # try fetch + serialized_ops: Optional[list[str]] = None + start_time = time.time() + if os.path.isfile(filepath): + # locally + try: + with open(filepath) as f: + serialized_ops = json.load(f) + + assert isinstance(serialized_ops, list), ( + f"Expected serialized ops is a list, got {type(serialized_ops)}" + ) + except Exception: + log.warning( + "Failed to load CUTLASS config %s from local cache", + filename, + exc_info=True, + ) + serialized_ops = None + elif config.is_fbcode(): + from torch._inductor.fb.cutlass_remote_cache import ( + maybe_fetch_cutlass_configs_from_remote, + ) + + # from remote + serialized_ops = maybe_fetch_cutlass_configs_from_remote(filepath) + + if serialized_ops is None: + return None + + # deserialize + serializer = get_cutlass_operation_serializer() + full_ops = [serializer.deserialize(x) for x in serialized_ops] # type: ignore[union-attr] + log.info("Loaded ops from %s cache in %.3fs", filename, time.time() - start_time) + return full_ops diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/cuda/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/cuda/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e12a86af8ab0ab8d7d7b2d8bf37ec6dec861e0ff --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/cuda/__init__.py @@ -0,0 +1,6 @@ +import torch + + +__version__ = torch.version.cuda + +from .cuda import * # noqa: F403 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/cuda/cuda.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/cuda/cuda.py new file mode 100644 index 0000000000000000000000000000000000000000..ad41f04fc897e33f4530eb42c76a104def58f413 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/cuda/cuda.py @@ -0,0 +1,24 @@ +# mypy: disable-error-code="no-untyped-def" +# flake8: noqa +import torch + + +class CUdeviceptr: + pass + + +class CUstream: + def __init__(self, v): + pass + + +class CUresult: + CUDA_SUCCESS = True + + +class nvrtc: + pass + + +def cuDeviceGetCount(): + return (CUresult.CUDA_SUCCESS, torch.cuda.device_count()) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/cuda/cudart.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/cuda/cudart.py new file mode 100644 index 0000000000000000000000000000000000000000..ca2ee5f1f6163d7b20336d6102ce5d8f97880c87 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/cuda/cudart.py @@ -0,0 +1,17 @@ +# mypy: disable-error-code="no-untyped-def" +import torch.cuda + + +class cudaError_t: + cudaSuccess = True + + +def cudaFree(n): + return (cudaError_t.cudaSuccess,) + + +def cudaGetDeviceProperties(d): + class DummyError: + value = False + + return (DummyError(), torch.cuda.get_device_properties(d)) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/pydot/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/pydot/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..8aefb6171b682f062cfe57a1876f51b280f120cc --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/pydot/__init__.py @@ -0,0 +1,2 @@ +# mypy: disable-error-code="var-annotated" +Dot = None diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/scipy/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/scipy/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..f0378d35a9c442559373f035e45de19b2be927cd --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/scipy/__init__.py @@ -0,0 +1,3 @@ +# typing: ignore +# flake8: noqa +from .special import * diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/scipy/special.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/scipy/special.py new file mode 100644 index 0000000000000000000000000000000000000000..79af3029aa0b18d0ad55633f8cca8af8b76b520b --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/cutlass_mock_imports/scipy/special.py @@ -0,0 +1,2 @@ +# mypy: disable-error-code="var-annotated" +erf = None diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/evt_extensions.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/evt_extensions.py new file mode 100644 index 0000000000000000000000000000000000000000..472438fec90e302b362f315fe58bd0062d89d94d --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/evt_extensions.py @@ -0,0 +1,276 @@ +from collections.abc import Callable +from typing import Any, Union + +from sympy import Expr + +from torch._inductor.ir import ( + ComputedBuffer, + InputBuffer, + is_contiguous_strides_for_shape, +) +from torch.utils._ordered_set import OrderedSet + +from ..cutlass_utils import torch_dtype_to_cutlass_type, try_import_cutlass + + +EpilogueFunctor = Any # EpilogueFunctor local class defined in _trace +Buffer = Union[ComputedBuffer, InputBuffer] +CutlassTupleType = Any # cutlass.backend.c_types.tuple_factory_..TupleType +CutlassVisitorType = Any # cutlass.backend.c_types.visitor_factory..VisitorType +CutlassArgType = ( + Any # Can be a CutlassTupleType, CutlassVisitorType, EmptyByte, or ctype.c_void_p +) + + +if try_import_cutlass(): + import ast + import ctypes + import textwrap + from typing import Union + + from cutlass_cppgen.backend.c_types import ( # type: ignore[import-not-found] + EmptyByte, + ) + from cutlass_cppgen.backend.epilogue import ( # type: ignore[import-not-found] + dtype2ctype, + ) + from cutlass_cppgen.backend.evt import ( # type: ignore[import-not-found] + EpilogueFunctorVisitor, + ) + from cutlass_cppgen.backend.evt.backend.emitter_base import ( # type: ignore[import-not-found] + FusionCallbacks, + ) + from cutlass_cppgen.backend.evt.backend.sm90_emitter import ( # type: ignore[import-not-found] + CollectiveEpilogue, + ) + from cutlass_cppgen.backend.evt.frontend import ( # type: ignore[import-not-found] + PythonASTFrontend, + ) + from cutlass_cppgen.backend.evt.ir.tensor import ( # type: ignore[import-not-found] + Tensor as CutlassTensor, + ) + from cutlass_library import ( + DataType, + EpilogueScheduleType, + LayoutType, + TileDescription, + ) + + from torch._inductor.codegen.cuda import cuda_env + from torch._inductor.utils import IndentedBuffer + + _CUTLASS_C_DTYPES = OrderedSet(dtype2ctype.values()) # type: ignore[var-annotated] + + class EVTArgRenames: + """Handles mapping buffer names to variable names in the cpp kernel signature and body""" + + def __init__(self) -> None: + self.buf_renames: dict[str, str] = {} + + def new_name(self, name: str) -> str: + if name in self.buf_renames: + return self.buf_renames[name] + else: + new_name = f"ptr_{len(self.buf_renames)}" + self.buf_renames[name] = new_name + return new_name + + def get(self, name: str) -> str: + return self.buf_renames.get(name, name) + + def create_example_tensors( + var_name_to_buffer_name: dict[str, str], + name_to_buffer: dict[str, Buffer], + size_hint_fn: Callable[[Union[Expr, int]], int], + ) -> dict[str, CutlassTensor]: + def cutlass_tensor_from_buffer( + buffer: Buffer, + ) -> CutlassTensor: + shape = buffer.get_layout().size + stride = buffer.get_layout().stride + shape = tuple(size_hint_fn(x) for x in shape) + stride = tuple(size_hint_fn(x) for x in stride) + + is_row_major = is_contiguous_strides_for_shape(stride, shape) + is_column_major = is_contiguous_strides_for_shape(stride[::-1], shape[::-1]) + + if not is_row_major and not is_column_major: + raise RuntimeError( + f"Cannot create example tensor for {buffer.get_name()} with \ +non-contiguous layout, received stride: {stride} and shape: {shape}" + ) + + return CutlassTensor( + shape=shape, + layout_tag=( + LayoutType.RowMajor if is_row_major else LayoutType.ColumnMajor + ), + element=torch_dtype_to_cutlass_type(buffer.get_layout().dtype), + ) + + return { + key: cutlass_tensor_from_buffer(name_to_buffer[name]) + for key, name in var_name_to_buffer_name.items() + } + + def trace( + fn_src: str, + example_tensors: dict[str, CutlassTensor], + accum_type: DataType, + output_type: DataType, + tile_description: TileDescription, + epilogue_schedule: EpilogueScheduleType, + name_to_buffer: dict[str, Buffer], + size_hint_fn: Callable[[Union[Expr, int]], int], + **kwargs: dict[str, Any], + ) -> tuple[str, str, str, EVTArgRenames]: + cuda_arch = int(cuda_env.get_cuda_arch()) # type: ignore[arg-type] + assert cuda_arch >= 90, "Only SM90+ is supported for EVT" + epilogue_functor = _trace(fn_src, example_tensors, cuda_arch, **kwargs) + visitor = EpilogueFunctorVisitor(cuda_arch, epilogue_functor) + fusion_callbacks = FusionCallbacks(visitor.graph, cuda_arch, emit_CD=False) + collective_epilogue = CollectiveEpilogue( + tile_description, + epilogue_schedule, + accum_type, + output_type, + fusion_callbacks, + ) + evt_name, evt_code = collective_epilogue.emit() + evt_args, arg_renames = _render_argument_type( + epilogue_functor, name_to_buffer, size_hint_fn + ) + return evt_name, evt_args, evt_code, arg_renames + + # Based off of + # https://github.com/NVIDIA/cutlass/blob/df18f5e4f5de76bed8be1de8e4c245f2f5ec3020/python/cutlass/epilogue/epilogue.py#L117 + # This is modified to enable directly passing the source code of the epilogue vs getting it from a bona-fide python function + # The reason for this is that inspect.getsource does not work with functions defined at runtime via exec/eval + def _trace( + fn_src: str, + example_tensors: dict[str, CutlassTensor], + cc: int, + **kwargs: Any, + ) -> EpilogueFunctor: + class EpilogueFunctor(PythonASTFrontend): + def __init__(self, cc: int, **kwargs: Any): + self.source = textwrap.dedent(fn_src) + super().__init__(cc, **kwargs) + + def parse( + self, + example_inputs: dict[str, CutlassTensor], + ) -> None: + self.example_inputs = example_inputs + self.ast = ast.parse(self.source) + # pyrefly: ignore [missing-attribute] + self.visit(self.ast) + + cc = int(cuda_env.get_cuda_arch()) + epilogue_functor = EpilogueFunctor(cc=cc, **kwargs) + epilogue_functor.trace(example_tensors) + return epilogue_functor + + def _render_argument_type( + epilogue_functor: EpilogueFunctor, + name_to_buffer: dict[str, Buffer], + size_hint_fn: Callable[[Union[Expr, int]], int], + ) -> tuple[str, EVTArgRenames]: + epilogue_thread_type = epilogue_functor.epilogue_thread_type + arg_renames = EVTArgRenames() + + # Fragile, but this is the only way to guarantee t is expected type because t is a local class + def is_nested_visitor_type(t: type) -> bool: + return ( + ".".join([t.__module__, t.__qualname__]) + == "cutlass_cppgen.backend.c_types.visitor_factory..VisitorType" + ) + + buffer = IndentedBuffer() + with buffer.set_tabwidth(2): + + def render_argument_type(name: str, t: CutlassArgType) -> None: + if issubclass(t, ctypes.c_byte): + buffer.writeline(f"{{}}, /* {name} */") + else: + fields = [ + ( + fname, + _get_arg_from_node( + ty, name_to_buffer[name], size_hint_fn, arg_renames + ), + ) + for fname, ty in t._fields_ + ] + field_strs = [ + f"/* {fname} */ {str(field)}" for fname, field in fields + ] + buffer.writeline(f"{{{', '.join(field_strs)}}}, /* {name} */") + + def render_thread_type(name: str, t: CutlassArgType) -> None: + if is_nested_visitor_type(t): + buffer.writeline(f"{{ /* {name} */") + with buffer.indent(): + for name, inner_t in t._fields_: + render_thread_type(name, inner_t) + buffer.writeline("},") + else: + render_argument_type(name, t) + + # unroll the recursion once to address special case formatting + # namely, no ending comma and no indentation for the outermost thread type + buffer.writeline("{ /* thread */") + with buffer.indent(3): + if is_nested_visitor_type(epilogue_thread_type): + with buffer.indent(): + for name, inner_t in epilogue_thread_type._fields_: + render_thread_type(name, inner_t) + else: + render_argument_type("thread", epilogue_thread_type) + buffer.writeline("}") + + return buffer.getvalue(), arg_renames + + def _get_arg_from_node( + arg_ty: type, + node: Buffer, + size_hint_fn: Callable[[Union[Expr, int]], int], + arg_renames: EVTArgRenames, + ) -> str: + from ..cuda_template import CUTLASSTemplate + + # Today, arguments are either a pointer to the + # node's memory, a stride tuple, the datatype + # Once again, need to check for local class type for stride tuple + if ( + str(arg_ty) + == ".TupleType'>" + ): + DEFAULT_STRIDE_LEN = 3 + assert len(node.get_layout().stride) <= DEFAULT_STRIDE_LEN + stride = [size_hint_fn(x) for x in node.get_layout().stride] + for _ in range(DEFAULT_STRIDE_LEN - len(stride)): + stride.append(0) + + def render_stride(x: int) -> str: + # Handle EBO for 0 and 1 + if x == 0: + return "_0{}" + elif x == 1: + return "_1{}" + else: + return str(x) + + return f"{{{', '.join([render_stride(x) for x in stride])}}}" + + elif issubclass(arg_ty, ctypes.c_void_p): + name = arg_renames.new_name(node.get_name()) + return f"({CUTLASSTemplate._DTYPE_TO_CUTLASS[node.get_layout().dtype]}*) ({name} + {name}_offset)" + elif ( + arg_ty in _CUTLASS_C_DTYPES + ): # Assumption: this is the element dtype, this holds for all cutlass ir nodes currently + return f"{CUTLASSTemplate._DTYPE_TO_CUTLASS[node.get_layout().dtype]}(0)" + elif issubclass(arg_ty, EmptyByte): + return "{}" + + raise NotImplementedError(f"Unsupported arg type: {arg_ty}") diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/gemm_operation_extensions.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/gemm_operation_extensions.py new file mode 100644 index 0000000000000000000000000000000000000000..95af1a968a97ce4de5db33a2752056369ecff94c --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_lib_extensions/gemm_operation_extensions.py @@ -0,0 +1,411 @@ +# mypy: ignore-errors +from ..cutlass_utils import try_import_cutlass + + +# copied / modified from original at +# https://github.com/NVIDIA/cutlass/blob/8783c41851cd3582490e04e69e0cd756a8c1db7f/tools/library/scripts/gemm_operation.py#L658 + +if try_import_cutlass(): + import enum + + from cutlass_library.gemm_operation import * # noqa: F401, F403 + from cutlass_library.library import * # noqa: F401, F403 + + _LOGGER = logging.getLogger(__name__) + + class EmitGemmUniversal3xInstanceWithEVT: + """Responsible for emitting a CUTLASS 3.x template definition""" + + def __init__(self, operation_suffix="", evt_name=None): + self.operation_suffix = operation_suffix + self.includes = [ + "cutlass/cutlass.h", + "cutlass/gemm/gemm.h", + "cutlass/numeric_types.h", + "cutlass/gemm/kernel/gemm_universal.hpp", + "cutlass/gemm/collective/collective_builder.hpp", + "cutlass/epilogue/collective/collective_builder.hpp", + ] + self.builtin_epilogue_functor_template = """${epilogue_functor}< + ${element_d}, + ${element_epilogue}, + ${element_c}, + ${element_epilogue} + >""" + + self.evt_name = evt_name + self.gemm_template = """ +using ${operation_name}_epilogue = +typename cutlass::epilogue::collective::CollectiveBuilder< + ${arch}, ${opcode_class_epi}, + cute::Shape, + cute::Shape<${cluster_shape_m}, ${cluster_shape_n}, ${cluster_shape_k}>, + ${epi_tile_mn}, + ${element_accumulator}, ${element_epilogue}, + ${element_c}, ${layout_c}, ${align_c}, + ${element_d}, ${layout_d}, ${align_d}, + ${epilogue_schedule}, + ${epilogue_functor} +>::CollectiveOp; + +${mixed_dtype_prepare_code} + +using ${operation_name}_mainloop = +typename cutlass::gemm::collective::CollectiveBuilder< + ${arch}, ${opcode_class_main}, + ${element_a}, ${layout_a}, ${align_a}, + ${element_b}, ${layout_b}, ${align_b}, + ${element_accumulator}, + cute::Shape, + cute::Shape<${cluster_shape_m}, ${cluster_shape_n}, ${cluster_shape_k}>, + ${stages}, + ${kernel_schedule} +>::CollectiveOp; + +// Gemm operator ${operation_name} +using ${operation_name}_base = cutlass::gemm::kernel::GemmUniversal< + ${problem_shape}, + ${operation_name}_mainloop, + ${operation_name}_epilogue, + ${tile_scheduler}>; + +// Define named type +struct ${operation_name} : +public ${operation_name}_base { }; + + """ + + # + def instance_template(self): + return """ +${compile_guard_start} +{ + using GemmKernel = cutlass::gemm::device::GemmUniversalAdapter<${operation_name}>; + manifest.append( + new ${gemm_kind}("${operation_name}")); +} +${compile_guard_end} + """ + + def emit_block_scale_epilogue_functor(self, operation): + block_scaled_template = """ + ${epilogue_functor}< + ${epi_vs}, + ${element_d}, + ${element_accumulator}, + ${element_sfd}, + ${layout_sfd}, + ${element_c}, + ${element_scalar} + > + """ + block_scaled_values = { + "epi_vs": str(operation.ScaleFactorVectorSize), + "element_d": str(DataTypeTag[operation.D.element]), + "element_sfd": str(DataTypeTag[operation.ScaleFactorD.element]), + "layout_sfd": LayoutTag[operation.ScaleFactorD.layout], + "epilogue_functor": EpilogueFunctor3xTag[ + EpilogueFunctor3x.LinearCombinationBlockScaleFactor + ], + "element_accumulator": str(DataTypeTag[operation.accumulator_type()]), + "element_scalar": str(DataTypeTag[operation.accumulator_type()]), + "element_c": str(DataTypeTag[operation.C.element]), + } + return SubstituteTemplate(block_scaled_template, block_scaled_values) + + @staticmethod + def pointerize_if_grouped(operation, layout): + return layout if not is_grouped(operation.gemm_kind) else layout + "* " + + @staticmethod + def problem_shape(operation): + gemm_shape_type = "cute::Shape" + grouped_gemm_shape_type = "cute::Shape" + grouped_gemm_shape_type = ( + "cutlass::gemm::GroupProblemShape<" + grouped_gemm_shape_type + ">" + ) + + return ( + gemm_shape_type + if not is_grouped(operation.gemm_kind) + else grouped_gemm_shape_type + ) + + def emit(self, operation): + """Given a gem operation, emits a template definition of the operation""" + + opcode_class_main = operation.tile_description.math_instruction.opcode_class + opcode_class_epi = opcode_class_main + + tile_shape = operation.tile_description.tile_shape + instruction_shape = ( + operation.tile_description.math_instruction.instruction_shape + ) + cluster_m = operation.tile_description.cluster_shape[0] + cluster_n = operation.tile_description.cluster_shape[1] + + tile_shape_m, tile_shape_n, tile_shape_k = tile_shape + + # account for static/dynamic cluster shapes + cta_m = tile_shape[0] // cluster_m if cluster_m > 0 else tile_shape[0] + cta_n = tile_shape[1] // cluster_n if cluster_n > 0 else tile_shape[1] + + # Shape passed to epilogue builder + is_sm100_kernel = operation.arch == 100 + if is_sm100_kernel: + cta_m_per_mma_instruction = ( + 2 if "2sm" in operation.procedural_name() else 1 + ) + if cluster_m <= 0: + cta_m = cta_m // cta_m_per_mma_instruction + + if opcode_class_main in [ + OpcodeClass.TensorOp, + OpcodeClass.BlockScaledTensorOp, + ]: + tile_shape_m = instruction_shape[0] + tile_shape_n = instruction_shape[1] + + # stage count set to zero indicates builder automatic stage selection + if operation.tile_description.stages > 0: + stage_count_string = f"cutlass::gemm::collective::StageCount<\ +{str(operation.tile_description.stages)}>" + else: + stage_count_string = ( + f"cutlass::gemm::collective::StageCountAutoCarveout(\ +sizeof(typename {str(operation.procedural_name())}_epilogue::SharedStorage))>" + ) + + epi_tile_mn = "cutlass::epilogue::collective::EpilogueTileAuto" + + ( + instance_layout_A, + instance_layout_B, + instance_layout_C, + instance_layout_D, + ) = ( + operation.A.layout, + operation.B.layout, + operation.C.layout, + operation.D.layout, + ) + + # 3.0 profiler integration only supports trivial epilogues for now + epilogue_vector_length = 1 + + # Support built-in epilogue functors or user-defined functions + if isinstance(operation.epilogue_functor, enum.Enum): + values = { + "element_epilogue": str(DataTypeTag[operation.element_epilogue]), + "epilogue_functor": EpilogueFunctor3xTag[ + operation.epilogue_functor + ], + } + epilogue_functor = SubstituteTemplate( + self.builtin_epilogue_functor_template, values + ) + + if ( + is_block_scaled(operation.gemm_kind) + and operation.ScaleFactorD.element != DataType.void + ): + epilogue_functor = self.emit_block_scale_epilogue_functor(operation) + else: + epilogue_functor = self.epilogue_functor.emit_declaration() + + if ( + is_block_scaled(operation.gemm_kind) + and operation.ScaleFactorD.element != DataType.void + ): + epilogue_functor = self.emit_block_scale_epilogue_functor(operation) + + # + # Cutlass3x complex kernels' ElementA(B) is a tuple in collective mainloop builder, + # e.g. cute::tuple, Transform : cute::identity / cute::conjugate. + element_a = ( + DataTypeTag[operation.A.element] + if not operation.is_complex() + else f"cute::tuple<{str(DataTypeTag[operation.A.element])},\ +{str(ComplexTransformTag3x[operation.A.complex_transform])}>" + ) + element_b = ( + DataTypeTag[operation.B.element] + if not operation.is_complex() + else f"cute::tuple<{str(DataTypeTag[operation.B.element])},\ +{str(ComplexTransformTag3x[operation.B.complex_transform])}>" + ) + epilogue_schedule_type = EpilogueScheduleTag[operation.epilogue_schedule] + + if opcode_class_main == OpcodeClass.BlockScaledTensorOp: + is_no_smem_epilogue = operation.epilogue_schedule in [ + EpilogueScheduleType.NoSmemWarpSpecialized1Sm, + EpilogueScheduleType.NoSmemWarpSpecialized2Sm, + ] + grouped = is_grouped(operation.gemm_kind) + if cta_n == 256 and operation.kernel_schedule == to_grouped_schedule( + KernelScheduleType.Nvf4TmaWarpSpecialized1SmSm100, grouped + ): + epi_tile_mn = "cute::Shape" + if not is_no_smem_epilogue: + epilogue_schedule_type = EpilogueScheduleTag[ + to_grouped_schedule( + EpilogueScheduleType.TmaWarpSpecialized1Sm, grouped + ) + ] + if cta_n == 256 and operation.kernel_schedule == to_grouped_schedule( + KernelScheduleType.Nvf4TmaWarpSpecialized2SmSm100, grouped + ): + epi_tile_mn = "cute::Shape" + if not is_no_smem_epilogue: + epilogue_schedule_type = EpilogueScheduleTag[ + to_grouped_schedule( + EpilogueScheduleType.TmaWarpSpecialized2Sm, grouped + ) + ] + element_a = f"cute::tuple<{str(element_a)},{str(DataTypeTag[operation.ScaleFactorA])}>" + element_b = f"cute::tuple<{str(element_b)},{str(DataTypeTag[operation.ScaleFactorB])}>" + + operation_name_str = operation.procedural_name() + layout_a_str = LayoutTag[instance_layout_A] + layout_b_str = LayoutTag[instance_layout_B] + mixed_dtype_prepare_code = "" + if operation.mixed_input_mode is not None: + A_dtype = operation.A.element + B_dtype = operation.B.element + A_dtype_bits = DataTypeSize[A_dtype] + B_dtype_bits = DataTypeSize[B_dtype] + is_A_dtype_narrow = A_dtype_bits < B_dtype_bits + if is_A_dtype_narrow: + narrow_dtype, wide_dtype = (A_dtype, B_dtype) + narrow_dtype_bits, wide_dtype_bits = (A_dtype_bits, B_dtype_bits) + else: + narrow_dtype, wide_dtype = (B_dtype, A_dtype) + narrow_dtype_bits, wide_dtype_bits = (B_dtype_bits, A_dtype_bits) + + narrow_tag = DataTypeTag[narrow_dtype] + wide_tag = DataTypeTag[wide_dtype] + scale_tag = DataTypeTag[wide_dtype] + zero_tag = DataTypeTag[wide_dtype] + + do_shuffle = False + value_shuffle_str = "" + if narrow_dtype_bits == 4 and wide_dtype_bits == 16: + value_shuffle_str = "cute::Layout, \ +cute::Stride>" + do_shuffle = True + if narrow_dtype_bits == 8 and wide_dtype_bits == 16: + value_shuffle_str = "cute::Layout, \ +cute::Stride>" + do_shuffle = True + do_shuffle = operation.mixed_input_shuffle and do_shuffle + + if do_shuffle: + if is_A_dtype_narrow: + stride_narrow_str = ( + f"cutlass::detail::TagToStrideA_t<{layout_a_str}>" + ) + layout_a_str = f"{operation_name_str}_LayoutNarrowReordered" + else: + stride_narrow_str = ( + f"cutlass::detail::TagToStrideB_t<{layout_b_str}>" + ) + layout_b_str = f"{operation_name_str}_LayoutNarrowReordered" + # The {operation_name_str}_ prefixs in mixed_dtype_prepare_code and + # layout_{a, b}_str are to prevent errors in Windows platform unity build + mixed_dtype_prepare_code = f""" + using {operation_name_str}_StrideNarrow = {stride_narrow_str}; + using {operation_name_str}_ValueShuffle = {value_shuffle_str}; + static constexpr int {operation_name_str}_NumShuffleAtoms = 1; + using {operation_name_str}_MmaAtomShape = \ +cute::Layout>>; + using {operation_name_str}_LayoutAtomQuant = \ +decltype(cutlass::compute_memory_reordering_atom<{wide_tag}, {operation_name_str}_MmaAtomShape, \ +{operation_name_str}_ValueShuffle>()); + using {operation_name_str}_LayoutNarrowReordered = \ +decltype(cute::tile_to_shape({operation_name_str}_LayoutAtomQuant{{}}, \ +cute::Layout, {operation_name_str}_StrideNarrow>{{}})); + """ + + mixed_input_modes_to_element = { + MixedInputMode.ConvertOnly: narrow_tag, + MixedInputMode.ScaleOnly: f"cute::tuple<{narrow_tag}, {scale_tag}>", + MixedInputMode.ScaleWithZeroPoint: f"cute::tuple<{narrow_tag}, {scale_tag}, {zero_tag}>", + } + narrow_element = mixed_input_modes_to_element.get( + operation.mixed_input_mode, narrow_tag + ) + + if narrow_dtype == DataType.s4 and ( + wide_dtype == DataType.e4m3 or wide_dtype == DataType.e5m2 + ): + narrow_element = ( + f"cute::tuple<{narrow_tag}, cutlass::Array<{scale_tag}, 8>>" + ) + + if is_A_dtype_narrow: + element_a = narrow_element + else: + element_b = narrow_element + + if self.evt_name: + epilogue_functor = self.evt_name + + values = { + "operation_name": operation_name_str, + "operation_suffix": self.operation_suffix, + "problem_shape": self.problem_shape(operation), + "element_a": element_a, + "layout_a": self.pointerize_if_grouped(operation, layout_a_str), + "element_b": element_b, + "layout_b": self.pointerize_if_grouped(operation, layout_b_str), + "element_c": DataTypeTag[operation.C.element], + "layout_c": self.pointerize_if_grouped( + operation, LayoutTag[instance_layout_C] + ), + "element_d": DataTypeTag[operation.D.element], + "layout_d": self.pointerize_if_grouped( + operation, LayoutTag[instance_layout_D] + ), + "element_accumulator": DataTypeTag[operation.accumulator_type()], + "opcode_class_main": OpcodeClassTag[opcode_class_main], + "opcode_class_epi": OpcodeClassTag[opcode_class_epi], + "arch": f"cutlass::arch::Sm{operation.arch}", + "tile_shape_m": str(tile_shape_m), + "tile_shape_n": str(tile_shape_n), + "tile_shape_k": str(tile_shape_k), + "cluster_shape_m": "cute::_" + + str(operation.tile_description.cluster_shape[0]) + if operation.tile_description.cluster_shape[0] > 0 + else "int", + "cluster_shape_n": "cute::_" + + str(operation.tile_description.cluster_shape[1]) + if operation.tile_description.cluster_shape[1] > 0 + else "int", + "cluster_shape_k": "cute::_" + + str(operation.tile_description.cluster_shape[2]) + if operation.tile_description.cluster_shape[2] > 0 + else "int", + "instruction_shape_m": str(instruction_shape[0]), + "instruction_shape_n": str(instruction_shape[1]), + "instruction_shape_k": str(instruction_shape[2]), + "kernel_schedule": str(KernelScheduleTag[operation.kernel_schedule]), + "epilogue_schedule": str(epilogue_schedule_type), + "epi_tile_mn": epi_tile_mn, + "epilogue_functor": epilogue_functor, + "stages": stage_count_string, + "align_a": str(operation.A.alignment), + "align_b": str(operation.B.alignment), + "align_c": str(operation.C.alignment), + "align_d": str(operation.D.alignment), + "transform_a": ComplexTransformTag[operation.A.complex_transform], + "transform_b": ComplexTransformTag[operation.B.complex_transform], + "math_operation": MathOperationTag[ + operation.tile_description.math_instruction.math_operation + ], + "epilogue_vector_length": str(epilogue_vector_length), + "element_epilogue": str(DataTypeTag[operation.element_epilogue]), + "tile_scheduler": str(TileSchedulerTag[operation.tile_scheduler]), + "mixed_dtype_prepare_code": mixed_dtype_prepare_code, + } + + return SubstituteTemplate(self.gemm_template, values) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_python_evt.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_python_evt.py new file mode 100644 index 0000000000000000000000000000000000000000..e6b7d2afe6c39e27e81c3b78d2c411f3cdf7193e --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_python_evt.py @@ -0,0 +1,326 @@ +import itertools +from collections.abc import Generator, Iterable, Iterator, Sequence +from contextlib import contextmanager +from os import linesep +from typing import Any, Optional + +import sympy + +import torch +import torch._inductor.virtualized as virtualized +from torch._inductor.ir import ComputedBuffer, Pointwise +from torch._inductor.ops_handler import DefaultHandler, WrapperHandler +from torch._inductor.scheduler import BaseSchedulerNode +from torch._inductor.utils import DelayReplaceLine, IndentedBuffer, OrderedSet +from torch._inductor.virtualized import OpsValue + +from ...virtualized import V + + +_ACCUMULATOR_ARG_NAME = "accum" + + +def scaled_mm_evt( + scale_A_name: str, scale_B_name: str, bias_name: Optional[str], output_name: str +) -> tuple[list[str], dict[str, Any], str]: + evt_read_names = [scale_A_name, scale_B_name] + var_name_to_buffer_name = {n: n for n in [scale_A_name, scale_B_name]} + var_name_to_buffer_name["D"] = output_name + var_name_to_buffer_name[_ACCUMULATOR_ARG_NAME] = output_name + expr = f"accum * {scale_A_name} * {scale_B_name}{linesep}" + if bias_name: + expr = f"({expr}) + {bias_name}" + evt_read_names.append(bias_name) + var_name_to_buffer_name[bias_name] = bias_name + + evt_py_code = f"def fn(accum, {','.join(evt_read_names)}):{linesep}\ + D = {expr}{linesep}\ + return D{linesep}" + + return evt_read_names, var_name_to_buffer_name, evt_py_code + + +class CutlassEVTOpsMixIn: + @staticmethod + def _infix_bin_op(op: str, a: str, b: str) -> str: + return f"{a} {op} {b}" + + @staticmethod + def _prefix_bin_op(op: str, a: str, b: str) -> str: + return f"{op}({a}, {b})" + + @staticmethod + def _prefix_un_op(op: str, a: str) -> str: + return f"{op}({a})" + + @staticmethod + def to_dtype( + x: str, + dtype: Any, + src_dtype: Optional[torch.dtype] = None, + use_compute_types: bool = False, + ) -> str: + return x + + @staticmethod + def constant(value: Any, dtype: Any) -> str: + raise NotImplementedError + + @staticmethod + def mul(x0: str, x1: str) -> str: + return CutlassEVTOpsMixIn._infix_bin_op("*", x0, x1) + + @staticmethod + def truediv(x0: str, x1: str) -> str: + return CutlassEVTOpsMixIn._infix_bin_op("/", x0, x1) + + @staticmethod + def ge(x0: str, x1: str) -> str: + raise NotImplementedError + + @staticmethod + def add(x0: str, x1: str) -> str: + return CutlassEVTOpsMixIn._infix_bin_op("+", x0, x1) + + @staticmethod + def relu(x0: str) -> str: + return CutlassEVTOpsMixIn._prefix_un_op("relu", x0) + + @staticmethod + def sigmoid(x0: str) -> str: + return CutlassEVTOpsMixIn._prefix_un_op("sigmoid", x0) + + @staticmethod + def sub(x0: str, x1: str) -> str: + return CutlassEVTOpsMixIn._infix_bin_op("-", x0, x1) + + @staticmethod + def tanh(x0: str) -> str: + return CutlassEVTOpsMixIn._prefix_un_op("tanh", x0) + + @staticmethod + def exp(x0: str) -> str: + return CutlassEVTOpsMixIn._prefix_un_op("exp", x0) + + +class MockCutlassHandler(CutlassEVTOpsMixIn, WrapperHandler): + """Passthrough handler for cutlass ops, used for running epilogue nodes for memory planning""" + + +class _AssignmentFormatter(DefaultHandler): + def __init__(self, parent_handler: "CutlassEVTCodegen"): + self.parent_handler = parent_handler + + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + # Handle op dispatch here + if hasattr(self.parent_handler, name): + fn = getattr(self.parent_handler, name) + line = fn(*args, **kwargs) + if name in ("load", "store"): + return OpsValue(line) + else: + var = self.parent_handler._tmp_var() + line = DelayReplaceLine( + var, + lambda: "D" + if var == self.parent_handler.last_stored_var_name + else var, + f"{var} = {line}", + ) + self.parent_handler.body.writeline(line) + return OpsValue(var) + else: + raise NotImplementedError(name) + + +class CutlassEVTCodegen(CutlassEVTOpsMixIn): + """ + Notes: + * Used by CUTLASSGemmTemplate. + * This class should not be instantiated by users, it is intended to be used + by calling CutlassEVTCodegen.ir_to_evt_python_code(...) + which instantiates this class as an ops handler for virtualized.V.ops.[op-name] + * Extend this with more _op_ nodes to add support for new pointwise operations. + """ + + def __init__(self, accumulator_node_name: str, removed_buffers: OrderedSet[str]): + """ + + Initializes a CutlassEVTEpilogueArgumentFormatter object. Do not instantiate directly. + Use the CutlassEVTCodegen.ir_to_evt_python_code static method. + + Args: + accumulator_node_name: The name of the accumulator node which should contain + the Matmul result before fusion according to the IR graph. + epilogue_nodes: The list of scheduler nodes to be fused into the epilogue + """ + self.accumulator_node_name: str = accumulator_node_name # + self.body: IndentedBuffer = IndentedBuffer(1) # The body buffer for codegen + self.var_counter: Iterator[int] = itertools.count() + self.store_name_to_value: dict[str, OpsValue] = ( + dict() + ) # Aliases for subexpression functors + self.reads: OrderedSet[str] = OrderedSet([]) + # Used for creating example tensors + self.var_name_to_buffer_name: dict[str, str] = { + _ACCUMULATOR_ARG_NAME: accumulator_node_name + } + self.removed_buffers: OrderedSet[str] = removed_buffers + self.cur_node: Optional[ComputedBuffer] = None + self.name_to_buffer = V.graph.name_to_buffer | V.graph.graph_inputs + for name in V.graph.constants: + self.name_to_buffer[name] = V.graph.add_tensor_constant( + V.graph.constants[name], name + ) + self.is_D_assigned = False + self.D_var_name = None + + if accumulator_node_name not in removed_buffers: + # cannot return accumulator directly, so alias it + var = self._tmp_var() + self.body.writeline(f"{var} = {_ACCUMULATOR_ARG_NAME}") + self.store(accumulator_node_name, value=OpsValue(var)) + + @staticmethod + def ir_to_evt_python_code( + cuda_template_node_name: str, + epilogue_nodes: list[BaseSchedulerNode], + removed_buffers: OrderedSet[str], + ) -> tuple[list[str], list[str], dict[str, Any], str]: + codegen = CutlassEVTCodegen(cuda_template_node_name, removed_buffers) + handler = _AssignmentFormatter(codegen) + + with virtualized.V.set_ops_handler(handler): + for s_node in epilogue_nodes: + node = s_node.node + assert isinstance(node, ComputedBuffer) + with codegen.set_cur_node(node): + index_vars = CutlassEVTCodegen.get_index_vars(node) + node.get_store_function()(index_vars) + + codegen.finalize() + + return ( + codegen.get_reads(), + codegen.get_writes(), + codegen.get_renames(), + codegen.get_value(), + ) + + def get_value(self) -> str: + return linesep.join( + [ + self._render_input_signature(), + self.body.getvalue(), + self._render_return_statement(), + ] + ) + + def finalize(self) -> None: + # Rename the last store to D + # no other code references this store + # to workaround https://github.com/NVIDIA/cutlass/issues/2288 + # Note: the delayed line will automatically rewrite the last assignment to + # be to D + buffer_name = self.var_name_to_buffer_name[self.last_stored_var_name] + self.var_name_to_buffer_name.pop(self.last_stored_var_name) + self.var_name_to_buffer_name["D"] = buffer_name + self.store_name_to_value[buffer_name] = OpsValue("D") + + @contextmanager + def set_cur_node(self, node: ComputedBuffer) -> Generator[None, Any, Any]: + prev_node = self.cur_node + try: + self.cur_node = node + yield + finally: + self.cur_node = prev_node + + def get_renames(self) -> dict[str, str]: + return dict(self.var_name_to_buffer_name) + + def get_reads(self) -> list[str]: + return list(self.reads.difference(self.store_name_to_value.keys())) + + def get_writes(self) -> list[str]: + return list(self.store_name_to_value.keys()) + + def load(self, name: str, index: Any) -> str: + self._check_indexing(name, index) + if name in self.store_name_to_value: + return self.store_name_to_value[name].value + elif name == self.accumulator_node_name: + return _ACCUMULATOR_ARG_NAME + else: + self.reads.add(name) + self.var_name_to_buffer_name[name] = name + return name + + def store( + self, name: Any, index: Any = None, value: Any = None, mode: Any = None + ) -> None: + if name not in self.removed_buffers: + if index: + self._check_indexing(name, index) + assert value.value != _ACCUMULATOR_ARG_NAME, ( + "Cannot store accumulator arg name" + ) + self.var_name_to_buffer_name[value.value] = name + self.store_name_to_value[name] = value + self.last_stored_var_name = value.value + return None + + def _get_cur_node(self) -> ComputedBuffer: + assert self.cur_node + return self.cur_node + + @staticmethod + def get_index_vars(node: ComputedBuffer) -> Sequence[sympy.Expr]: + data = node.data + # TODO mlazos: relax this, cutlass supports reductions and other ops + assert isinstance(data, Pointwise) + return data._index(data.ranges) + + def _get_current_index_vars(self) -> Sequence[sympy.Expr]: + return self.get_index_vars(self._get_cur_node()) + + def _check_indexing(self, name: str, index: sympy.Expr) -> None: + # We only support indexing that matches the layout today because + # CUTLASS doesn't support arbitrary indexing + buffer_name = ( + self.accumulator_node_name if name == _ACCUMULATOR_ARG_NAME else name + ) + buffer = self.name_to_buffer[buffer_name] + index_strides = V.graph.sizevars.stride_vars( + index, self._get_current_index_vars() + ) + stride = buffer.get_layout().stride + if not self._stride_compatible(stride, index_strides): + raise NotImplementedError( + f"Unsupported indexing for {name} with index {index}, index strides {index_strides}, and layout stride {stride}" + ) + + def _stride_compatible( + self, left: Iterable[sympy.Expr], right: Iterable[sympy.Expr] + ) -> bool: + return all( + sympy.Eq(l, r) or sympy.Eq(l, 0) or sympy.Eq(r, 0) + for l, r in (zip(left, right)) + ) + + def _render_input_signature(self) -> str: + arguments = ", ".join( + [_ACCUMULATOR_ARG_NAME] + + [name for name in self.reads if name != self.accumulator_node_name] + ) + return f"def fn({arguments}):" + + def _render_return_statement(self) -> str: + return_vars = OrderedSet( + op_v.value for op_v in self.store_name_to_value.values() + ) + assert "D" in return_vars + return f"return {', '.join(return_vars)}" + + def _tmp_var(self) -> str: + return f"tmp_{next(self.var_counter)}" diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..fa46e8766cd5819b41af4c5269945119722d2251 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/cutlass_utils.py @@ -0,0 +1,493 @@ +# mypy: allow-untyped-defs +import atexit +import functools +import logging +import os +import shutil +import sys +import time +from dataclasses import dataclass +from pathlib import Path +from typing import Any, Optional +from typing_extensions import TypeIs + +import sympy + +import torch +from torch._inductor.runtime.runtime_utils import dynamo_timed +from torch._inductor.utils import clear_on_fresh_cache +from torch.utils._ordered_set import OrderedSet + +from ... import config +from ...ir import Layout +from ...runtime.runtime_utils import cache_dir +from ...virtualized import V +from ..cpp_utils import DTYPE_TO_CPP +from .cuda_env import get_cuda_arch, get_cuda_version + + +log = logging.getLogger(__name__) + +CUTLASS_OPERATION_KIND: str = "gemm" +ACCUMULATOR_DTYPES: OrderedSet[torch.dtype] = OrderedSet([torch.float, torch.int32]) +XW_DTYPES: OrderedSet[torch.dtype] = OrderedSet( + [torch.half, torch.bfloat16, torch.float8_e4m3fn, torch.int8] +) + + +@atexit.register +def move_cutlass_compiled_cache() -> None: + """Move CUTLASS compiled cache file to the cache directory if it exists.""" + if not try_import_cutlass.cache_info().currsize > 0: + return + + import cutlass_cppgen # type: ignore[import-not-found] + + # Check if the CACHE_FILE attribute exists in cutlass_cppgen and if the file exists + if not hasattr(cutlass_cppgen, "CACHE_FILE") or not os.path.exists( + cutlass_cppgen.CACHE_FILE + ): + return + + try: + filename = os.path.basename(cutlass_cppgen.CACHE_FILE) + shutil.move(cutlass_cppgen.CACHE_FILE, os.path.join(cache_dir(), filename)) + log.debug("Moved CUTLASS compiled cache file to %s", cache_dir()) + except OSError: + log.warning("Failed to move CUTLASS compiled cache file", exc_info=True) + + +def _rename_cutlass_import(content: str, cutlass_modules: list[str]) -> str: + for cutlass_module in cutlass_modules: + content = content.replace( + f"from {cutlass_module} import ", + f"from cutlass_library.{cutlass_module} import ", + ) + return content + + +@functools.cache +def try_import_cutlass() -> bool: + """ + We want to support three ways of passing in CUTLASS: + 1. fbcode, handled by the internal build system. + 2. User specifies cutlass_dir. The default is ../third_party/cutlass/, + which is the directory when developers build from source. + """ + if config.is_fbcode(): + try: + import cutlass_cppgen # type: ignore[import-not-found] # noqa: F401 + import cutlass_library # type: ignore[import-not-found] + except ImportError as e: + log.warning( # noqa: G200 + "Failed to import CUTLASS packages in fbcode: %s, ignoring the CUTLASS backend.", + str(e), + ) + return False + + return True + + # Copy CUTLASS python scripts to a temp dir and add the temp dir to Python search path. + # This is a temporary hack to avoid CUTLASS module naming conflicts. + # TODO(ipiszy): remove this hack when CUTLASS solves Python scripts packaging structure issues. + + # TODO(mlazos): epilogue visitor tree currently lives in python/cutlass, + # but will be moved to python/cutlass_library in the future (later 2025) + def path_join(path0, path1): + return os.path.abspath(os.path.join(path0, path1)) + + # contains both cutlass and cutlass_library + # we need cutlass for eVT + cutlass_python_path = path_join(config.cuda.cutlass_dir, "python") + torch_root = os.path.abspath(os.path.dirname(torch.__file__)) + mock_src_path = os.path.join( + torch_root, + "_inductor", + "codegen", + "cuda", + "cutlass_lib_extensions", + "cutlass_mock_imports", + ) + + cutlass_library_src_path = path_join(cutlass_python_path, "cutlass_library") + cutlass_cppgen_src_path = path_join(cutlass_python_path, "cutlass_cppgen") + pycute_src_path = path_join(cutlass_python_path, "pycute") + + tmp_cutlass_full_path = os.path.abspath(os.path.join(cache_dir(), "torch_cutlass")) + + dst_link_library = path_join(tmp_cutlass_full_path, "cutlass_library") + dst_link_cutlass_cppgen = path_join(tmp_cutlass_full_path, "cutlass_cppgen") + dst_link_pycute = path_join(tmp_cutlass_full_path, "pycute") + + # mock modules to import cutlass + mock_modules = ["cuda", "scipy", "pydot"] + + if os.path.isdir(cutlass_python_path): + if tmp_cutlass_full_path not in sys.path: + + def link_and_append(dst_link, src_path, parent_dir): + if os.path.lexists(dst_link): + assert os.path.islink(dst_link), ( + f"{dst_link} is not a symlink. Try to remove {dst_link} manually and try again." + ) + assert os.path.realpath(os.readlink(dst_link)) == os.path.realpath( + src_path, + ), f"Symlink at {dst_link} does not point to {src_path}" + else: + os.makedirs(parent_dir, exist_ok=True) + os.symlink(src_path, dst_link) + + if parent_dir not in sys.path: + sys.path.append(parent_dir) + + link_and_append( + dst_link_library, cutlass_library_src_path, tmp_cutlass_full_path + ) + link_and_append( + dst_link_cutlass_cppgen, cutlass_cppgen_src_path, tmp_cutlass_full_path + ) + link_and_append(dst_link_pycute, pycute_src_path, tmp_cutlass_full_path) + + for module in mock_modules: + link_and_append( + path_join(tmp_cutlass_full_path, module), # dst_link + path_join(mock_src_path, module), # src_path + tmp_cutlass_full_path, # parent + ) + + try: + import cutlass_cppgen # type: ignore[import-not-found] # noqa: F401, F811 + import cutlass_library.generator # noqa: F401 + import cutlass_library.library # noqa: F401 + import cutlass_library.manifest # noqa: F401 + import pycute # type: ignore[import-not-found] # noqa: F401 + + return True + except ImportError as e: + log.debug( # noqa: G200 + "Failed to import CUTLASS packages: %s, ignoring the CUTLASS backend.", + str(e), + ) + else: + log.debug( + "Failed to import CUTLASS packages: CUTLASS repo does not exist: %s", + cutlass_python_path, + ) + return False + + +@functools.lru_cache(8) +def _normalize_cuda_arch(arch: str) -> str: + if int(arch) >= 100: + log.warning( + "Detected CUDA architecture >= 100: %s. We will generate operations with " + "GenerateSM100 (if available) and GenerateSM90. Please file an " + "issue for any problems and feedback. ", + arch, + ) + + if int(arch) >= 100: + return "100" + elif int(arch) >= 90: + return "90" + elif int(arch) >= 80: + return "80" + elif int(arch) >= 75: + return "75" + elif int(arch) >= 70: + return "70" + else: + raise NotImplementedError(f"Unsupported cuda arch: {arch}") + + +@dataclass +class CUTLASSArgs: + """ + CUTLASS args used to initialize a CUTLASS Manifest. + """ + + architectures: Optional[str] = None + cuda_version: Optional[str] = None + instantiation_level: Optional[str] = None + operations: Optional[str] = None + + build_dir = "" + curr_build_dir = "" + generator_target = "" + kernels = "all" + ignore_kernels = "" + exclude_kernels = "" + # TODO: these three look dead? + kernel_filter_file: None = None + selected_kernel_list: None = None + interface_dir: None = None + filter_by_cc = True + disable_full_archs_compilation = False + + def __post_init__(self): + if self.architectures is None or self.cuda_version is None: + raise RuntimeError( + f"{self.architectures=} or {self.cuda_version=} is None!" + ) + self.architectures = _normalize_cuda_arch(self.architectures) + + +@clear_on_fresh_cache +@functools.cache +def _gen_ops_cached(arch, version) -> dict[Any, Any]: + # Note: Cache needs to be specific for cuda architecture and version + + # Import cutlass python scripts. + assert try_import_cutlass() + import cutlass_library.generator as cutlass_generator + import cutlass_library.manifest as cutlass_manifest + + if arch is None or version is None: + log.error( + "Cannot detect cuda arch %s or cuda version %s. " + "Will discard all cutlass ops. " + "Please consider setting _inductor.cuda.arch and _inductor.cuda.version configs.", + arch, + version, + ) + return {} + arch = _normalize_cuda_arch(arch) + instantiation_level: str = config.cuda.cutlass_instantiation_level + args = CUTLASSArgs( + architectures=arch, + cuda_version=version, + instantiation_level=instantiation_level, + operations=CUTLASS_OPERATION_KIND, + ) + manifest = cutlass_manifest.Manifest(args) + + start_time = time.time() + if arch == "100": + if hasattr(cutlass_generator, "GenerateSM100"): + cutlass_generator.GenerateSM100(manifest, args.cuda_version) + cutlass_generator.GenerateSM90(manifest, args.cuda_version) + else: + try: + func = getattr(cutlass_generator, "GenerateSM" + arch) + func(manifest, args.cuda_version) + except AttributeError as e: + raise NotImplementedError( + "Arch " + arch + " is not supported by current cutlass lib." + ) from e + + log.info( + "CUTLASS library generated a dict of %d operation kinds in %.2f seconds", + len(manifest.operations), + time.time() - start_time, + ) + return manifest.operations + + +def gen_ops() -> dict[Any, Any]: + """ + Generates all supported CUTLASS operations. + """ + with dynamo_timed("cutlass_utils.gen_ops"): + arch = get_cuda_arch() + version = get_cuda_version() + return _gen_ops_cached(arch, version) + + +DTYPE_TO_CUTLASS_TYPE = { + **DTYPE_TO_CPP, + torch.float16: "__half", + torch.bfloat16: "__nv_bfloat16", + torch.float8_e4m3fn: "__nv_fp8_e4m3", +} + + +@functools.lru_cache(32) +def torch_dtype_to_cutlass_type( + torch_dtype: torch.dtype, +) -> "cutlass_library.library.DataType": # type: ignore[name-defined] # noqa: F821 + # Import cutlass python scripts. + assert try_import_cutlass() + import cutlass_library # type: ignore[import] + + if torch_dtype == torch.float: + return cutlass_library.library.DataType.f32 + elif torch_dtype == torch.half: + return cutlass_library.library.DataType.f16 + elif torch_dtype == torch.bfloat16: + return cutlass_library.library.DataType.bf16 + else: + raise NotImplementedError(f"Unsupported data type: {torch_dtype=}") + + +@functools.lru_cache(32) +def dtype_match( + torch_dtype: Optional[torch.dtype], + cutlass_dtype: "cutlass_library.library.DataType", # type: ignore[name-defined] # noqa: F821 +) -> bool: + # Import cutlass python scripts. + assert try_import_cutlass() + import cutlass_library + + if torch_dtype == torch.float: + return ( + cutlass_dtype == cutlass_library.library.DataType.f32 + or cutlass_dtype == cutlass_library.library.DataType.tf32 + ) + elif torch_dtype == torch.half: + return cutlass_dtype == cutlass_library.library.DataType.f16 + elif torch_dtype == torch.bfloat16: + return cutlass_dtype == cutlass_library.library.DataType.bf16 + elif torch_dtype == torch.int8: + return cutlass_dtype == cutlass_library.library.DataType.s8 + elif torch_dtype == torch.uint8: + return cutlass_dtype == cutlass_library.library.DataType.u8 + elif torch_dtype == torch.int32: + return cutlass_dtype == cutlass_library.library.DataType.s32 + elif torch_dtype == torch.float8_e4m3fn: + return cutlass_dtype == cutlass_library.library.DataType.e4m3 + else: + return False + + +def get_accumulator_dtype( + input_torch_dtypes: list[torch.dtype], +) -> Optional[torch.dtype]: + """ + Given a pair of input torch dtypes, returns the inferred accumulator torch dtype. + """ + + assert OrderedSet(input_torch_dtypes) <= XW_DTYPES, ( + f"{input_torch_dtypes=} is not supported" + ) + + if len(input_torch_dtypes) != 2: + return None + + torch_dtype = None + if input_torch_dtypes[0] == input_torch_dtypes[1]: + torch_dtype = input_torch_dtypes[0] + else: + size0 = torch.tensor([], dtype=input_torch_dtypes[0]).element_size() + size1 = torch.tensor([], dtype=input_torch_dtypes[1]).element_size() + if size0 > size1: + dtype0, dtype1 = input_torch_dtypes + else: + dtype1, dtype0 = input_torch_dtypes + if dtype0 in [torch.half, torch.bfloat16] and dtype1 in [ + torch.int8, + torch.uint8, + ]: + torch_dtype = dtype0 + + if torch_dtype in (torch.float16, torch.bfloat16, torch.float, torch.float8_e4m3fn): + accumulator_dtype = torch.float + elif torch_dtype == torch.int8: + accumulator_dtype = torch.int32 + else: + raise NotImplementedError(f"Unsupported data types: {input_torch_dtypes=}") + + assert accumulator_dtype in ACCUMULATOR_DTYPES, ( + f"{accumulator_dtype=} is not supported" + ) + return accumulator_dtype + + +@functools.lru_cache(32) +def get_alignments(torch_dtype: torch.dtype) -> list[int]: + """ + Returns all possible valid CUTLASS alignments in terms of the number of elements for a given dtype. + CUTLASS gemm / conv SM80 APIs support 16 bytes max alignment, and 2 bytes min alignment. + """ + + if torch_dtype in (torch.half, torch.bfloat16): + return [8, 4, 2, 1] + elif torch_dtype == torch.float: + return [4, 2, 1] + elif torch_dtype in (torch.uint8, torch.int8, torch.float8_e4m3fn): + return [16, 8, 4, 2] + elif torch_dtype == torch.int32: + return [4, 2, 1] + else: + raise NotImplementedError(f"unsupported {torch_dtype=} for alignments") + + +def get_max_alignment(inductor_layout: Layout) -> int: + """ + Returns the max alignment (in terms of number of elements) for a given Inductor Layout. + """ + + dtype = inductor_layout.dtype + size = inductor_layout.size + offset = inductor_layout.offset + + def is_static_int(number: object) -> TypeIs[int | sympy.Integer]: + return isinstance(number, (int | sympy.Integer)) + + def a_factor_of(x, alignment): + if is_static_int(x) and is_static_int(alignment): + return x % alignment == 0 + rem = sympy.Mod(x, alignment) + return V.graph.sizevars.evaluate_expr(sympy.Eq(rem, 0)) + + try: + contiguous_dim = inductor_layout.stride.index(1) + except ValueError: + # No dim with stride 1 found, return 1 + return 1 + alignments = get_alignments(dtype) + for alignment in alignments: + if not a_factor_of(size[contiguous_dim], alignment) or not a_factor_of( + offset, alignment + ): + continue + if all( + (dim == contiguous_dim) + or a_factor_of(inductor_layout.stride[dim], alignment) + for dim in range(len(size)) + ): + return alignment + return 1 + + +class CUDACompileSourceCapturingContext: + # Helper class for Benchmarking and Testing CUTLASS Kernels in isolation. + # Can be used to capture the sourcecode passed to CUDACodeCache.compile + + def __init__(self): + self.sources = [] + self._compile_patch = None + + def __enter__(self, *args, **kwargs): + import unittest.mock as mock + + import torch._inductor.codecache + + _compile_method_orig = torch._inductor.codecache.CUDACodeCache.compile + + def my_compile( + source_code, dst_file_ext, extra_args: Optional[list[str]] = None + ): + self.sources.append(source_code) + return _compile_method_orig(source_code, dst_file_ext) + + # pyrefly: ignore [bad-assignment] + self._compile_patch = mock.patch( + "torch._inductor.codecache.CUDACodeCache.compile", my_compile + ) + self._compile_patch.__enter__(*args, **kwargs) # type: ignore[union-attr] + return self + + def __exit__(self, *args, **kwargs): + self._compile_patch.__exit__(*args, **kwargs) # type: ignore[union-attr] + + +def cuda_standalone_runner_compile_command(srcpath: Path, exepath: Path): + # returns command string to compile a (captured) CUDA GEMM Kernel source to a standalone executable that's ready to run + # Passes the correct preprocessor define to nvcc to ensure the standalone runner is enabled. + from torch._inductor.codecache import cuda_compile_command + + extra_args = ["-DGENERATE_STANDALONE_RUNNER=1", "-DCUTLASS_DEBUG_TRACE_LEVEL=1"] + compile_command = cuda_compile_command( + [str(srcpath)], str(exepath), "exe", extra_args=extra_args + ) + return compile_command diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/device_op_overrides.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/device_op_overrides.py new file mode 100644 index 0000000000000000000000000000000000000000..147515e0decfe8f14853e18193fa4ca45501cac8 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/device_op_overrides.py @@ -0,0 +1,364 @@ +from __future__ import annotations + +from typing import Optional + +import torch + +from ..common import ( + DeviceOpOverrides, + register_device_op_overrides, + TritonScratchWorkspace, +) + + +class CUDADeviceOpOverrides(DeviceOpOverrides): + """ + CUDA-specific codegen functions, see DeviceOpOverrides for details + """ + + def import_get_raw_stream_as(self, name: str) -> str: + return f"from torch._C import _cuda_getCurrentRawStream as {name}" + + def set_device(self, device_idx: int) -> str: + return f"torch.cuda.set_device({device_idx})" + + def synchronize(self) -> str: + return "torch.cuda.synchronize()" + + def device_guard(self, device_idx: int) -> str: + return f"torch.cuda._DeviceGuard({device_idx})" + + def cpp_device_guard(self) -> str: + return "at::cuda::CUDAGuard" + + def cpp_aoti_device_guard(self) -> str: + return "AOTICudaGuard" + + def cpp_stream_guard(self) -> str: + return "at::cuda::CUDAStreamGuard" + + def cpp_aoti_stream_guard(self) -> str: + return "AOTICudaStreamGuard" + + def cpp_getStreamFromExternal(self) -> str: + return "at::cuda::getStreamFromExternal" + + def kernel_header(self) -> str: + source_codes = """ + #include + #include + #include + """ + return source_codes + + def kernel_driver(self) -> str: + source_codes = """ + #define CUDA_DRIVER_CHECK(EXPR) \\ + do { \\ + CUresult code = EXPR; \\ + const char *msg; \\ + CUresult code_get_error = cuGetErrorString(code, &msg); \\ + if (code_get_error != CUDA_SUCCESS) { \\ + throw std::runtime_error( \\ + std::string("CUDA driver error: ") + \\ + std::string("invalid error code!")); \\ + } \\ + if (code != CUDA_SUCCESS) { \\ + throw std::runtime_error( \\ + std::string("CUDA driver error: ") + \\ + std::string(msg)); \\ + } \\ + } while (0); + + static inline CUfunction loadKernel( + std::string filePath, + const std::string &funcName, + uint32_t sharedMemBytes, + const std::optional &cubinDir = std::nullopt) { + if (cubinDir) { + std::filesystem::path p1{*cubinDir}; + std::filesystem::path p2{filePath}; + filePath = (p1 / p2.filename()).string(); + } + + CUmodule mod; + CUfunction func; + CUDA_DRIVER_CHECK(cuModuleLoad(&mod, filePath.c_str())); + CUDA_DRIVER_CHECK(cuModuleGetFunction(&func, mod, funcName.c_str())); + if (sharedMemBytes > 0) { + CUDA_DRIVER_CHECK(cuFuncSetAttribute( + func, + CU_FUNC_ATTRIBUTE_MAX_DYNAMIC_SHARED_SIZE_BYTES, + sharedMemBytes + )) + } + return func; + } + + static inline CUfunction loadKernel(const void* start, const std::string &funcName, uint32_t sharedMemBytes) { + CUmodule mod; + CUfunction func; + CUDA_DRIVER_CHECK(cuModuleLoadData(&mod, start)); + CUDA_DRIVER_CHECK(cuModuleGetFunction(&func, mod, funcName.c_str())); + if (sharedMemBytes > 0) { + CUDA_DRIVER_CHECK(cuFuncSetAttribute( + func, + CU_FUNC_ATTRIBUTE_MAX_DYNAMIC_SHARED_SIZE_BYTES, + sharedMemBytes + )) + } + return func; + } + + static inline void launchKernel( + CUfunction func, + uint32_t gridX, + uint32_t gridY, + uint32_t gridZ, + uint32_t numWarps, + uint32_t sharedMemBytes, + void* args[], + cudaStream_t stream) { + CUDA_DRIVER_CHECK(cuLaunchKernel( + func, gridX, gridY, gridZ, 32*numWarps, 1, 1, sharedMemBytes, stream, args, nullptr + )); + } + """ + if torch.version.hip is not None: + # Adjusting the warp size to GPU supported wavefront size on AMD GPU + prop = torch.cuda.get_device_properties(torch.cuda.current_device()) + source_codes = source_codes.replace( + "32*numWarps", str(prop.warp_size) + "*numWarps" + ) + return source_codes + + def tma_descriptor_helpers(self) -> str: + """ + CUDA helper functions for initializing TMA Descriptors on host side + """ + if torch.version.hip is not None: + raise RuntimeError("Host-side TMA descriptors not supported on HIP.") + + # helper functions for initializing 1D and 2D TMA descriptors in C++. borrowed from the Triton code here: + # Old APIs (fill(1|2)DTMADescriptor): + # https://github.com/triton-lang/triton/blob/6af4f88591c85de079d8a36a4d7dba67918e2b39/third_party/nvidia/backend/driver.c#L283 + # New APIs (fillTMADescriptor): + # https://github.com/triton-lang/triton/blob/main/third_party/nvidia/backend/driver.c#L283 + return """ + #if !defined(USE_ROCM) && defined(CUDA_VERSION) && CUDA_VERSION >= 12000 + [[maybe_unused]] static void init1DTMADescriptor( + CUtensorMap* m, + void* globalAddress, + uint64_t dim, + uint32_t blockDim, + uint32_t elementSize) { + uint64_t dims[1] = {dim}; + uint64_t globalStrides[1] = {dim * elementSize}; + uint32_t tensorDims[1] = {blockDim}; + uint32_t elementStrides[1] = {1}; + + CUtensorMapDataType type; + switch (elementSize) { + case 1: + type = CU_TENSOR_MAP_DATA_TYPE_UINT8; + break; + case 2: + type = CU_TENSOR_MAP_DATA_TYPE_UINT16; + break; + case 4: + type = CU_TENSOR_MAP_DATA_TYPE_UINT32; + break; + default: + throw std::runtime_error("elementSize must be 1, 2, or 4"); + } + + if (elementSize * blockDim < 32) { + throw std::runtime_error("block size too small"); + } + + int rank = 1; + + CUDA_DRIVER_CHECK(cuTensorMapEncodeTiled( + m, type, rank, globalAddress, dims, + globalStrides, tensorDims, elementStrides, CU_TENSOR_MAP_INTERLEAVE_NONE, + CU_TENSOR_MAP_SWIZZLE_NONE, CU_TENSOR_MAP_L2_PROMOTION_NONE, + CU_TENSOR_MAP_FLOAT_OOB_FILL_NONE)); + } + + [[maybe_unused]] static void init2DTMADescriptor( + CUtensorMap* m, + void* globalAddress, + uint64_t dim1, + uint64_t dim0, + uint32_t blockDim1, + uint32_t blockDim0, + uint32_t elementSize) { + uint64_t dims[2] = {dim0, dim1}; + uint32_t tensorDims[2] = {blockDim0, blockDim1}; + uint64_t globalStrides[2] = {dims[0] * elementSize, + dims[0] * dims[1] * elementSize}; + uint32_t elementStrides[2] = {1, 1}; + + CUtensorMapDataType type; + switch (elementSize) { + case 1: + type = CU_TENSOR_MAP_DATA_TYPE_UINT8; + break; + case 2: + type = CU_TENSOR_MAP_DATA_TYPE_UINT16; + break; + case 4: + type = CU_TENSOR_MAP_DATA_TYPE_UINT32; + break; + default: + throw std::runtime_error("elementSize must be 1, 2, or 4"); + } + + int rank = 2; + + CUtensorMapSwizzle swizzle = CU_TENSOR_MAP_SWIZZLE_128B; + uint32_t contigDimSizeInByte = elementSize * tensorDims[0]; + if (contigDimSizeInByte >= 128) { + swizzle = CU_TENSOR_MAP_SWIZZLE_128B; + } else if (contigDimSizeInByte >= 64) { + swizzle = CU_TENSOR_MAP_SWIZZLE_64B; + } else if (contigDimSizeInByte >= 32) { + swizzle = CU_TENSOR_MAP_SWIZZLE_32B; + } else { + throw std::runtime_error("block size too small"); + } + + if (contigDimSizeInByte > 128) { + tensorDims[0] = 128 / elementSize; + } + + CUDA_DRIVER_CHECK(cuTensorMapEncodeTiled( + m, type, rank, globalAddress, dims, + globalStrides, tensorDims, elementStrides, CU_TENSOR_MAP_INTERLEAVE_NONE, + swizzle, CU_TENSOR_MAP_L2_PROMOTION_L2_128B, + CU_TENSOR_MAP_FLOAT_OOB_FILL_NONE)); + } + + [[maybe_unused]] static void initTMADescriptor( + CUtensorMap* m, + void* globalAddress, + int elemSize, + int rank, + uint32_t* blockSize, + uint64_t* shape, + uint64_t* stride + ) { + uint32_t elementStrides[5] = {1, 1, 1, 1, 1}; + uint32_t blockSizeInt[5]; + uint64_t shapeInt[5]; + uint64_t stridesLL[5]; + + // Reorder blockSize (reverse the order) + for (int i = 0; i < rank; ++i) { + blockSizeInt[rank - i - 1] = blockSize[i]; + } + + // Reorder shape (reverse the order) + for (int i = 0; i < rank; ++i) { + shapeInt[rank - i - 1] = shape[i]; + } + + // Reorder and calculate strides + for (int i = 0; i + 1 < rank; ++i) { + stridesLL[rank - i - 2] = elemSize * stride[i]; + } + stridesLL[rank - 1] = + shapeInt[rank - 1] * (rank == 1 ? elemSize : stridesLL[rank - 2]); + + CUtensorMapDataType type; + // In Triton this is computed ahead of time; but for simplicity + // in the PyTorch version we copied this code from the old + // TMA API handling (i.e. init2DTMADescriptor) + switch (elemSize) { + case 1: + type = CU_TENSOR_MAP_DATA_TYPE_UINT8; + break; + case 2: + type = CU_TENSOR_MAP_DATA_TYPE_UINT16; + break; + case 4: + type = CU_TENSOR_MAP_DATA_TYPE_UINT32; + break; + default: + throw std::runtime_error("elemSize must be 1, 2, or 4"); + } + + // Calculate the size of the most contiguous dimension in bytes + CUtensorMapSwizzle swizzle = CU_TENSOR_MAP_SWIZZLE_128B; + uint32_t contigDimSizeInByte = elemSize * blockSizeInt[0]; + if (rank == 1) { + // rank 1 should not be swizzled + swizzle = CU_TENSOR_MAP_SWIZZLE_NONE; + } else if (contigDimSizeInByte >= 128) { + swizzle = CU_TENSOR_MAP_SWIZZLE_128B; + } else if (contigDimSizeInByte >= 64) { + swizzle = CU_TENSOR_MAP_SWIZZLE_64B; + } else if (contigDimSizeInByte >= 32) { + swizzle = CU_TENSOR_MAP_SWIZZLE_32B; + } else { + throw std::runtime_error("block size too small"); + } + + CUDA_DRIVER_CHECK(cuTensorMapEncodeTiled( + m, type, rank, globalAddress, + shapeInt, stridesLL, blockSizeInt, elementStrides, + CU_TENSOR_MAP_INTERLEAVE_NONE, (CUtensorMapSwizzle)swizzle, + CU_TENSOR_MAP_L2_PROMOTION_L2_128B, CU_TENSOR_MAP_FLOAT_OOB_FILL_NONE)); + } + + struct StableTMADescriptor { + CUtensorMap m; + uint32_t block_shape[5]; + uint64_t global_shape[5]; + uint64_t strides[5]; + }; + #endif + """ + + def cpp_stream_type(self) -> str: + return "cudaStream_t" + + def aoti_get_stream(self) -> str: + return "aoti_torch_get_current_cuda_stream" + + def cpp_kernel_type(self) -> str: + return "CUfunction" + + def cpp_device_ptr(self) -> str: + return "CUdeviceptr" + + def cpp_scratch( + self, idx: int, workspace: TritonScratchWorkspace, prefix: Optional[str] = None + ) -> Optional[tuple[list[str], str]]: + prefix = f"{prefix}_" if prefix else "" + var_name = f"{prefix}scratch_{idx}" + if workspace.size > 0: + size_array = f"int64_t {var_name}_size[] = {{{workspace.size}}};" + stride_array = f"int64_t {var_name}_stride[] = {{1}};" + device_type = "cached_torch_device_type_cuda" + device_idx = "device_idx_" + + return ( + [ + f"{size_array}", + f"{stride_array}", + f"AtenTensorHandle {var_name}_handle;", + ( + f"AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_empty_strided(1, {var_name}_size, {var_name}_stride, " + f"{workspace.generate_dtype_str()}, {device_type}, {device_idx}, &{var_name}_handle));" + ), + f"RAIIAtenTensorHandle {var_name}_tensor({var_name}_handle);", + f"CUdeviceptr {var_name} = reinterpret_cast({var_name}_tensor.data_ptr());", + ], + var_name, + ) + else: + return [f"CUdeviceptr {var_name} = 0;"], var_name + + +register_device_op_overrides("cuda", CUDADeviceOpOverrides()) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/gemm_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/gemm_template.py new file mode 100644 index 0000000000000000000000000000000000000000..c4b7188bd9e621eb4a2bed773d7a5a116bca9b3e --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/gemm_template.py @@ -0,0 +1,1966 @@ +# mypy: allow-untyped-defs +import copy +import enum +import functools +import logging +import re +import time +from abc import ABC, abstractmethod +from typing import Any, Optional, Union + +import torch +import torch.utils._pytree as pytree +from torch._inductor.autotune_process import TensorMeta +from torch._inductor.codegen.cuda.cutlass_cache import maybe_fetch_ops +from torch._inductor.codegen.wrapper import PythonWrapperCodegen +from torch._inductor.runtime.runtime_utils import dynamo_timed +from torch._inductor.scheduler import BaseSchedulerNode +from torch._inductor.select_algorithm import create_inputs_key +from torch._inductor.utils import clear_on_fresh_cache + +from ... import ir +from ...config import cuda as inductor_cuda_config +from ...ir import ( + Buffer, + ChoiceCaller, + CUDATemplateBuffer, + FixedLayout, + IRNode, + Layout, + ReinterpretView, +) +from ...utils import is_dynamic, Placeholder +from ...virtualized import V +from ..common import IndentedBuffer +from . import cutlass_utils +from .cuda_kernel import CUDATemplateKernel +from .cuda_template import CUTLASSTemplate +from .cutlass_python_evt import CutlassEVTCodegen, scaled_mm_evt +from .cutlass_utils import ( + ACCUMULATOR_DTYPES, + dtype_match, + torch_dtype_to_cutlass_type, + XW_DTYPES, +) + + +GemmOperation = Any +EVTArgRenames = Any + +log = logging.getLogger(__name__) + +# Jinja template for GEMM Kernel, used by the CUTLASSGemm3xTemplate class below. +GEMM_TEMPLATE_CUTLASS_3X = r""" +{{template.header().getvalue()}} +{{template.globals().getvalue()}} +{{epilogue_visitor_tree}} +{{instance_definition}} +// When workspace_size is not a nullptr, populates requested workspace_size and returns. +// Otherwise, computes the Gemm kernel using the given workspace ptr. +extern "C" { +PT_EXPORT {{kernel_call_signature}} { + try { + using ElementComputeEpilogue = {{instance_type}}::ElementAccumulator; + using coord_t = cutlass::gemm::GemmCoord::Index; + static cutlass::KernelHardwareInfo hw_info; + if (hw_info.sm_count == 0) { + hw_info.sm_count = cutlass::KernelHardwareInfo::query_device_multiprocessor_count(0); + CUTLASS_TRACE_HOST("Query result for SM count per device: " << hw_info.sm_count); + } + {{instance_type}}::Arguments arguments; + {{template.render_gemm_arguments(argument_template, epilogue_template, should_swap_xw, + X, W, Bias, Y, alpha, beta, kernel, epilogue_args)}} + {{instance_type}} gemm_op; + if (workspace_size) { + *workspace_size = gemm_op.get_workspace_size(arguments); + return 0; + } + // check for null pointers after workspace size, since querying workspace size doesn't require valid data pointers +#ifndef CUTLASS_BACKEND_DISABLE_CHECKS + { + auto status = gemm_op.can_implement(arguments); + CUTLASS_CHECK(status); + } +#endif +#ifdef CUTLASS_DEBUG_TRACE_LEVEL +#if CUTLASS_DEBUG_TRACE_LEVEL == 1 + { + // Print the maximum number of active blocks per SM for the kernel if CUTLASS_DEBUG_TRACE_LEVEL == 1 + // we don't need a print statement, it's happening inside the function. + gemm_op.maximum_active_blocks(); + } +#endif +#endif + { + auto status = gemm_op.initialize(arguments, workspace, stream); + CUTLASS_CHECK(status); + } + { + auto status = gemm_op(stream); + CUTLASS_CHECK(status); + } + } + catch (std::exception& e) { + std::cerr << "Runtime error: " << e.what() << std::endl; + return -1; + } + catch (...) { + return -1; + } + return 0; +} +} + +// configuration name: {{op_conf_name}} +""" + +# Jinja template for Cutlass 3.x GEMM Kernel arguments, used by the CUTLASSGemmTemplate class below. +GEMM_ARGS_CUTLASS_3X = r""" + // Initialize GemmUniversal3xInstance arguments. + arguments = { + {{template.gemm_mode()}}, // GemmUniversalMode mode + { + static_cast({{M}}), + static_cast({{N}}), + static_cast(K), + static_cast(B) + }, // ProblemShape problem_shape + { + {{template.cutlass_type_cast(X, kernel.ptr(X))}}, // ElementA const* ptr_A + { + {{template.cute_int(kernel.stride(X, -2), "stride_x0")}}, + {{template.cute_int(kernel.stride(X, -1), "stride_x1")}}, + {{template.cute_int(kernel.batch_stride(X), "batch_stride_x")}} + }, // StrideA dA + {{template.cutlass_type_cast(W, kernel.ptr(W))}}, // ElementB const* ptr_B + { + {{template.cute_int(kernel.stride(W, -1), "stride_w1")}}, + {{template.cute_int(kernel.stride(W, -2), "stride_w0")}}, + {{template.cute_int(kernel.batch_stride(W), "batch_stride_w")}} + }, // StrideB dB + }, // MainloopArguments mainloop + {{epilogue_arguments}}, + hw_info + }; + arguments.scheduler.max_swizzle_size = swizzle; +""" + +# Jinja template for Cutlass 3.x GEMM Kernel arguments if epilogue fusion is applied, +# used by the CUTLASSGemmTemplate class below. +GEMM_ARGS_CUTLASS_3X_EPILOGUE = r""" + // see https://tinyurl.com/4rk89z48 + { + {{epilogue_args}}, // thread, typename FusionCallbacks::Arguments ( EVT ) or ThreadEpilogueOp::Params (non-EVT ) + {{template.cutlass_type_cast(Bias, kernel.ptr(Bias))}}, // ElementC const* ptr_C + { + {{template.cute_int(kernel.stride(Bias, -2, 1), "stride_bias0")}}, + {{template.cute_int(kernel.stride(Bias, -1, 1), "stride_bias1")}}, + {{template.cute_int(kernel.batch_stride(Bias), "batch_stride_bias")}} + }, // StrideC dC + {{template.cutlass_type_cast(Y, kernel.ptr(Y))}}, // ElementD const* ptr_D + { + {{template.cute_int(kernel.stride(Y, -2), "stride_y0")}}, + {{template.cute_int(kernel.stride(Y, -1), "stride_y1")}}, + {{template.cute_int(kernel.batch_stride(Y), "batch_stride_y")}} + }, // StrideD dD + }, // EpilogueArguments epilogue +""" + +# Jinja template for GEMM Kernel, used by the CUTLASS2xGemmTemplate class below. +GEMM_TEMPLATE_CUTLASS_2X = r""" +{{template.header().getvalue()}} +{{template.globals().getvalue()}} +{{instance_definition}} +// When workspace_size is not a nullptr, populates requested workspace_size and returns. +// Otherwise, computes the Gemm kernel using the given workspace ptr. +extern "C" { +PT_EXPORT {{kernel_call_signature}} { + try { + int B = {{kernel.size(Y, 0, -3, default_value=1)}}; + using ElementComputeEpilogue = {{instance_type}}::ElementAccumulator; + using coord_t = cutlass::gemm::GemmCoord::Index; + static cutlass::KernelHardwareInfo hw_info; + if (hw_info.sm_count == 0) { + hw_info.sm_count = cutlass::KernelHardwareInfo::query_device_multiprocessor_count(0); + CUTLASS_TRACE_HOST("Query result for SM count per device: " << hw_info.sm_count); + } + {{instance_type}}::Arguments arguments; + {{template.render_gemm_arguments(instance_type, argument_template, epilogue_template, should_swap_xw, + X, W, Bias, Meta, Y, alpha, beta, kernel, epilogue_args)}} + {{instance_type}} gemm_op; + if (workspace_size) { + *workspace_size = gemm_op.get_workspace_size(arguments); + return 0; + } + + // check for null pointers after workspace size, since querying workspace size doesn't require valid data pointers +#ifndef CUTLASS_BACKEND_DISABLE_CHECKS + { + auto status = gemm_op.can_implement(arguments); + CUTLASS_CHECK(status); + } +#endif +#ifdef CUTLASS_DEBUG_TRACE_LEVEL +#if CUTLASS_DEBUG_TRACE_LEVEL == 1 + { + // Print the maximum number of active blocks per SM for the kernel if CUTLASS_DEBUG_TRACE_LEVEL == 1 + // we don't need a print statement, it's happening inside the function. + gemm_op.maximum_active_blocks(); + } +#endif +#endif + + { + auto status = gemm_op.initialize(arguments, workspace, stream); + CUTLASS_CHECK(status); + } + { + auto status = gemm_op(stream); + CUTLASS_CHECK(status); + } + } + catch (std::exception& e) { + std::cerr << "Runtime error: " << e.what() << std::endl; + return -1; + } + catch (...) { + return -1; + } + return 0; +} +} +""" + +# Jinja template for Cutlass 2.x GEMM Kernel arguments, used by the CUTLASS2xGemmTemplate class below. +GEMM_ARGS_CUTLASS_2X = r""" + int64_t batch_stride_x = {{kernel.stride(X, -3)}}; + int64_t row_stride_x = {{kernel.row_or_column_stride(X)}}; + int64_t batch_stride_w = {{kernel.stride(W, -3)}}; + int64_t row_stride_w = {{kernel.row_or_column_stride(W)}}; + int64_t batch_stride_bias = {{kernel.stride(Bias, -3)}}; + int64_t row_stride_bias = {{kernel.row_or_column_stride(Bias)}}; + int64_t batch_stride_y = {{kernel.stride(Y, -3)}}; + int64_t row_stride_y = {{kernel.row_or_column_stride(Y)}}; + // Initialize GemmUniversalInstance arguments. + arguments = { + {{template.gemm_mode()}}, // GemmUniversalMode mode + { + static_cast(M), + static_cast(N), + static_cast(K) + }, // GemmCoord problem_size + {{split_k if split_k > 1 else 'B'}}, // int batch_count + {ElementComputeEpilogue({{alpha}}), ElementComputeEpilogue({{beta}})}, // typename EpilogueOutputOp::Params epilogue + {{template.cutlass_type_cast(X, kernel.ptr(X))}}, // void const * ptr_A + {{template.cutlass_type_cast(W, kernel.ptr(W))}}, // void const * ptr_B + {{template.cutlass_type_cast(Bias, kernel.ptr(Bias))}}, // void const * ptr_C + {{template.cutlass_type_cast(Y, kernel.ptr(Y))}}, // void * ptr_D + batch_stride_x, // int64_t batch_stride_A + batch_stride_w, // int64_t batch_stride_B + batch_stride_bias, // int64_t batch_stride_C + batch_stride_y, // int64_t batch_stride_D + row_stride_x, // typename LayoutA::Stride::LongIndex lda + row_stride_w, // typename LayoutB::Stride::LongIndex ldb + row_stride_bias, // typename LayoutC::Stride::LongIndex ldc + row_stride_y, // typename LayoutC::Stride::LongIndex ldd + }; +""" + +GEMM_ARGS_SPARSE_CUTLASS_2X = r""" + using TensorRefA = cutlass::TensorRef<{{instance_type}}::ElementA, + {{instance_type}}::LayoutA>; + using TensorRefB = cutlass::TensorRef<{{instance_type}}::ElementB, + {{instance_type}}::LayoutB>; + using TensorRefC = cutlass::TensorRef<{{instance_type}}::ElementC, + {{instance_type}}::LayoutC>; + using TensorRefE = cutlass::TensorRef<{{instance_type}}::ElementE, + {{instance_type}}::LayoutE>; + // Note that "X" and "W" names may be misleading here. Namely, for + // sparse GEMM, the first argument is always sparse, while typically + // weight matrix, implied by name "W" will be sparse in + // applications. Thus, just remember that here: "X" refers to first + // argument, that is sparse, and "W" to second, that is dense. + TensorRefA X_ref({{template.cutlass_type_cast(X, kernel.ptr(X))}}, {{kernel.row_or_column_stride(X)}}); + TensorRefB W_ref({{template.cutlass_type_cast(W, kernel.ptr(W))}}, {{kernel.row_or_column_stride(W)}}); + TensorRefC Y_ref({{template.cutlass_type_cast(Y, kernel.ptr(Y))}}, {{kernel.row_or_column_stride(Y)}}); + TensorRefE Meta_ref({{template.cutlass_sparse_meta_type_cast(Meta, kernel.ptr(Meta))}}, + TensorRefE::Layout::packed({ {{kernel.size(Meta, 0)}}, {{kernel.size(Meta, 1)}} })); + // Initialize GemmSparse arguments. + arguments = { + { + static_cast(M), + static_cast(N), + static_cast(2 * K), + }, // GemmCoord problem_size + X_ref, // TensorRef ref_A + W_ref, // TensorRef ref_B + Y_ref, // TensorRef ref_C + Y_ref, // TensorRef ref_D + Meta_ref, // TensorRef ref_E + {ElementComputeEpilogue({{alpha}}), ElementComputeEpilogue({{beta}})}, // typename EpilogueOutputOp::Params epilogue, + }; +""" + +# Additional includes which are necessary if the standalone test / debug runner is generated as well +GEMM_STANDALONE_RUNNER_ADDITIONAL_INCLUDES = r""" +#ifdef GENERATE_STANDALONE_RUNNER +#include "cutlass/util/distribution.h" +#include "cutlass/util/host_tensor.h" +#include "cutlass/util/packed_stride.hpp" +#include "cutlass/util/tensor_view_io.h" +#include "cutlass/util/reference/device/gemm_complex.h" +#include "cutlass/util/reference/device/tensor_compare.h" +#include "cutlass/util/reference/device/tensor_fill.h" +#include +#endif +""" + +# Jinja template for the standalone runner that may be generated as part of the code. +GEMM_STANDALONE_RUNNER_TEMPLATE = r""" +#ifdef GENERATE_STANDALONE_RUNNER +/// Helper to initialize a block of device data +template +bool initialize_block( + cutlass::DeviceAllocation& block, + uint64_t seed, float max=1.0, float min=-1.0) { + if (block.size()<=0) return false; + Element scope_max(static_cast(max)), scope_min(static_cast(min)); + cutlass::reference::device::BlockFillRandomUniform( + (Element*)block.get(), block.size(), seed, scope_max, scope_min); + + return true; +} + +{% if Meta is defined and Meta is not none %} +template +bool initialize_block_meta( + cutlass::DeviceAllocation& block, + uint64_t seed) { + if (block.size()<=0) return false; + cutlass::reference::device::BlockFillRandomSparseMeta( + (Element*)block.get(), block.size(), seed, {{instance_type}}::kMetaSizeInBits); + return true; +} +{% endif %} + +extern "C" int run_standalone(uint64_t seed, int repetitions) { + std::cout << "Starting GEMM Standalone test run with seed " << seed << std::endl; + size_t workspace_size = 0; + size_t* workspace_size_ptr = &workspace_size; + + int M = {{kernel.get_layout_args()[0]}}; + int N = {{kernel.get_layout_args()[1]}}; + int K = {{kernel.get_layout_args()[2]}}; + int B = {{kernel.get_layout_args()[3]}}; + int lda = {{kernel.get_layout_args()[4]}}; + int ldb = {{kernel.get_layout_args()[5]}}; + int ldc = {{kernel.get_layout_args()[6]}}; + int ldd = {{kernel.get_layout_args()[7]}}; + uint8_t swizzle = {{kernel.runtime_arg_values[0]}}; + + using ElementA = {{kernel.cutlass_dtype(X)}}; + using ElementB = {{kernel.cutlass_dtype(W)}}; + using ElementC = {{kernel.cutlass_dtype(Bias, default_dtype='uint8_t')}}; // may not be void + using ElementD = {{kernel.cutlass_dtype(Y)}}; + {% if Meta is defined and Meta is not none %} + using ElementE = {{kernel.cutlass_dtype(Meta)}}; + {% endif %} + + cutlass::DeviceAllocation X_data({{kernel.max_valid_index(X)+1}}); + initialize_block(X_data, seed++); + cutlass::DeviceAllocation W_data({{kernel.max_valid_index(W)+1}}); + initialize_block(W_data, seed++); + cutlass::DeviceAllocation Bias_data({{kernel.max_valid_index(Bias)+1}}); + initialize_block(Bias_data, seed++); + cutlass::DeviceAllocation Y_data({{kernel.max_valid_index(Y)+1}}); + {% if Meta is defined and Meta is not none %} + cutlass::DeviceAllocation Meta_data({{kernel.max_valid_index(Meta)+1}}); + initialize_block_meta(Meta_data, seed++); + {% endif %} + + cutlass::DeviceAllocation workspace_data; + // Call once with workspace_size_ptr set to get workspace size + + std::cout << "Calling once to get workspace size" << std::endl; + {{test_call_statement}}; + // Allocate workspace if necessary + if (workspace_size > 0) { + workspace_data.reset(workspace_size); + std::cout << "Allocated workspace size of " << workspace_size << " bytes" << std::endl; + } + std::cout << "Calling Kernel as {{test_call_statement}};" << std::endl; + workspace_size_ptr = nullptr; + for (int i=0; i None: + """ + Args: + input_nodes (List[Buffer]): List of input nodes of the GEMM kernel. + layout (Layout): Layout type of the resulting output node. + alpha (float): The scaling factor for the product of the inputs in the GEMM operation. + beta (float): The scaling factor applied to the output matrix. + input_reorder (Optional[List[int]]): Specifies the reordering of the input nodes. If not provided, + no reordering is performed. Defaults to None. + """ + super().__init__( + str(Placeholder.KERNEL_NAME), input_nodes, layout, input_reorder + ) + self.alpha = alpha + self.beta = beta + self.use_fast_accum = use_fast_accum + assert 2 <= len(input_nodes) <= 5 + assert self._are_inputs_layout_compatible( + [node.get_layout() for node in input_nodes] + ) + + self.cache_key: str = create_inputs_key(self.input_nodes) + + @staticmethod + @abstractmethod + def add_cutlass_gemm_choices( + choices: list[ChoiceCaller], + layout: ir.Layout, + input_nodes: list[Buffer], + alpha: Union[float, int] = 1, + beta: Union[float, int] = 0, + input_reorder: Optional[list[int]] = None, + use_fast_accum: Optional[bool] = None, + **extra_kwargs, + ) -> None: + raise NotImplementedError + + @staticmethod + @abstractmethod + def _get_supported_ops() -> "list[cutlass_library.gemm_operation.GemmOperation]": # type: ignore[name-defined] # noqa: F821 + raise NotImplementedError + + @staticmethod + @abstractmethod + def _has_tma_epilogue(self) -> bool: + raise NotImplementedError + + @abstractmethod + def _get_template(self) -> str: + raise NotImplementedError + + @abstractmethod + def _get_template_args( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> tuple[str, Optional[str]]: + raise NotImplementedError + + @abstractmethod + def _are_inputs_layout_compatible(self, layouts: list[Layout]) -> bool: + raise NotImplementedError + + @abstractmethod + def _shape_match( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> bool: + raise NotImplementedError + + @abstractmethod + def _alignment_match( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> bool: + raise NotImplementedError + + @abstractmethod + def _set_bias_layout_and_alignment( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> bool: + raise NotImplementedError + + @abstractmethod + def _define_gemm_instance( + self, + op: GemmOperation, + evt_name: Optional[str] = None, + ) -> tuple[str, str]: + raise NotImplementedError + + @abstractmethod + def _get_extra_inputs_and_names( + self, + op: "cutlass_gemm_op.GemmOperation" = None, # type: ignore[name-defined] # noqa: F821 + ) -> tuple[Optional[Buffer], list[Optional[Buffer]], list[str]]: + raise NotImplementedError + + @abstractmethod + def _update_arg_names_for_test_call_statement( + self, + arg_names: list[str], + input_nodes: list[Buffer], + ) -> list[str]: + raise NotImplementedError + + def _add_cutlass_gemm_choices( + self, + choices: list[ChoiceCaller], + layout: ir.Layout, + input_nodes: list[Buffer], + alpha: Union[float, int] = 1, + beta: Union[float, int] = 0, + input_reorder: Optional[list[int]] = None, + **extra_kwargs, + ) -> None: + """ + Adds Cutlass GEMM configurations choices to the auto-tuning list. + + This function mutates the passed list of choices by appending the choices for Cutlass GEMM configs to it. + + Args: + choices (list): The list to which choices are appended. + layout (ir.Layout): The layout configuration. + input_nodes (list): The list of input nodes. + alpha (float,int): Scaling factor, defaults to 1. + beta (float,int): Offset, defaults to 0. + input_reorder (list, optional): Order of the inputs, defaults to None. + **extra_kwargs: Additional keyword arguments. + + """ + + ops = self.gen_ops() + + # pre-computation + layout_repr: str = str(layout) + input_tensor_meta: Union[TensorMeta, list[TensorMeta]] = ( + TensorMeta.from_irnodes(self.input_nodes) + ) + output_tensor_meta: Union[TensorMeta, list[TensorMeta]] = ( + TensorMeta.from_irnodes(self.output_node) + ) + + with dynamo_timed("CUTLASSGemmTemplate.maybe_append_choice"): + for name, op in ops: + for ( + swizzle + ) in inductor_cuda_config.cutlass_max_profiling_swizzle_options: + description = f"{name} swizzle={swizzle}" + self.maybe_append_choice( + choices, + op=op, + name=name, + description=description, + input_key=self.cache_key, + layout_repr=layout_repr, + input_tensor_meta=input_tensor_meta, + output_tensor_meta=output_tensor_meta, + swizzle=swizzle, + ) + + if len(ops) == 0: + log.info( + "No suitable Cutlass GEMM configs found, fallbacks used " + "( len(ops)=%d, output_layout=%s, input_layouts=%s, input_strides=%s )", + len(ops), + layout, + [node.get_layout() for node in input_nodes], + [node.get_stride() for node in input_nodes], + ) + log.debug( + "Added %d Cutlass gemm configs.", + len(ops), + ) + + def header(self) -> IndentedBuffer: + """ + Returns a buffer containing CUDA C++ code for the header section of the CUTLASS GEMM template. + This section primarily includes the necessary header files. + + Returns: + IndentedBuffer: An instance of IndentedBuffer that contains the generated CUDA C++ header code. + """ + res = super().header() + res.splice( + """ + #include "cutlass/gemm/gemm.h" + #include "cutlass/gemm/device/gemm_universal.h" + #include "cutlass/gemm/device/gemm_universal_adapter.h" + #include "cutlass/gemm/kernel/gemm_universal.hpp" + #include "cutlass/gemm/device/gemm_sparse.h" + #include "cutlass/gemm/collective/collective_builder.hpp" + #include "cutlass/epilogue/collective/collective_builder.hpp" + #include "cutlass/epilogue/collective/default_epilogue.hpp" + #include "cutlass/epilogue/thread/linear_combination.h" + #include "cutlass/epilogue/thread/activation.h" + #include "cutlass/gemm/dispatch_policy.hpp" + #include "cutlass/gemm/kernel/tile_scheduler.hpp" + #include "cutlass/tensor_ref.h" + #include "cutlass/util/distribution.h" + #include "cutlass/util/packed_stride.hpp" + #include "cutlass/util/tensor_view_io.h" + """ + ) + if inductor_cuda_config.generate_test_runner and not is_dynamic( + *self.input_nodes, self.output_node + ): + res.splice(GEMM_STANDALONE_RUNNER_ADDITIONAL_INCLUDES) + return res + + @staticmethod + def cutlass_layout(torch_layout: ir.Layout) -> "Optional[cutlass_lib.LayoutType]": # type: ignore[name-defined] # noqa: F821 + """ + Converts an ir.Layout instance into the corresponding cutlass_library.LayoutType enum value + (RowMajor, ColumnMajor, or None if no matching value is found ). + + Args: + torch_layout (ir.Layout): The layout that needs to be looked up. + + Returns: + cutlass_lib.LayoutType: The converted layout corresponding to the `torch_layout` or None if no matching + value is found. + """ + assert cutlass_utils.try_import_cutlass() + import cutlass_library.library as cutlass_lib + + if V.graph.sizevars.statically_known_equals(torch_layout.stride[-1], 1): + return cutlass_lib.LayoutType.RowMajor + elif V.graph.sizevars.statically_known_equals(torch_layout.stride[-2], 1): + return cutlass_lib.LayoutType.ColumnMajor + else: + return None + + @staticmethod + def flip_cutlass_layout( + cutlass_layout: "cutlass_lib.LayoutType", # type: ignore[name-defined] # noqa: F821 + ) -> "cutlass_lib.LayoutType": # type: ignore[name-defined] # noqa: F821 + """Helper method: Flips a given cutlass layout (cutlass_lib.LayoutType) from RowMajor + to ColumnMajor or vice versa""" + assert cutlass_utils.try_import_cutlass() + import cutlass_library.library as cutlass_lib + + if cutlass_layout == cutlass_lib.LayoutType.RowMajor: + return cutlass_lib.LayoutType.ColumnMajor + else: + return cutlass_lib.LayoutType.RowMajor + + @staticmethod + @functools.lru_cache(32) + def layout_match( + torch_layout: ir.Layout, + cutlass_layout: "cutlass_lib.LayoutType", # type: ignore[name-defined] # noqa: F821 + ) -> bool: + """Helper Method: Determines whether a given torch layout matches a given Cutlass layout""" + return CUTLASSGemmTemplate.cutlass_layout(torch_layout) == cutlass_layout + + @staticmethod + def set_layout(tensor_desc: "TensorDescription", torch_layout: ir.Layout) -> None: # type: ignore[name-defined] # noqa: F821 + """ + Helper method: Sets the layout of a given tensor description to match the given torch layout + """ + if CUTLASSGemmTemplate.layout_match(torch_layout, tensor_desc.layout): + return + tensor_desc.layout = CUTLASSGemmTemplate.cutlass_layout(torch_layout) + + @staticmethod + def set_alignment(torch_layout, op_element) -> bool: + """ + Helper method to update the alignment of a given CUTLASS GEMM op operand's element. + + This method modifies the alignment of the given Cutlass GEMM op operand's element to match the + layout of the corresponding ir.Buffer node. + + Args: + torch_layout: The layout of the corresponding ir.Buffer node. + op_element: The Cutlass GEMM op operand's element whose alignment is to be updated. + + Returns: + bool: True if the alignment was successfully updated, False otherwise. + """ + alignment = cutlass_utils.get_max_alignment(torch_layout) + cuda_arch = cutlass_utils.get_cuda_arch() + if cuda_arch and int(cuda_arch) >= 90 and alignment < op_element.alignment: + return False + else: + op_element.alignment = alignment + return True + + @staticmethod + def should_swap_XW( + bias: IRNode, + ) -> bool: + """ + Helper method to determine whether we should do an explicit transpose by switching the order of the + matmul operands. This might be necessary when we can't otherwise arrive at the right memory + layout for the given Bias operand. + + Note: This method is a workaround for CUDA Errors that seemingly non-deterministically + occurred in practice in some CUTLASS GEMM Kernels with Linear epilogues that have a bias term. + it might make sense to check on newer Cutlass releases whether it makes sense to keep + returning True in certain cases or whether it becomes unnecessary. + """ + # If bias is row major, swap all M and N dimensions + if ( + bias is not None + and len(bias.get_stride()) >= 2 + and bias.get_stride()[-1] in (0, 1) + ): + log.debug("GEMM Layout swapped X and W -> explicit transpose") + return True + return False + + @staticmethod + def swap_XW( + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> "cutlass_library.gemm_op.GemmOperation": # type: ignore[name-defined] # noqa: F821 + """ + Swap operands X and W (aka operans A and B) of the GEMM operation. This + requires transposing the operands, which is done by swapping the strides. + Note that we don't change the apparent external layout, just the operand layout. + this is intentional. + """ + new_op = copy.deepcopy(op) + new_op.A.layout = CUTLASSGemmTemplate.flip_cutlass_layout(new_op.A.layout) + new_op.B.layout = CUTLASSGemmTemplate.flip_cutlass_layout(new_op.B.layout) + new_op.A, new_op.B = new_op.B, new_op.A + new_op.C.layout = CUTLASSGemmTemplate.flip_cutlass_layout(new_op.C.layout) + new_op.D.layout = CUTLASSGemmTemplate.flip_cutlass_layout(new_op.D.layout) + return new_op + + def fix_op_layout( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + X: Buffer, + W: Buffer, + Bias: Optional[Buffer], + Y: Union[Buffer, ReinterpretView], + ) -> "cutlass_library.gemm_op.GemmOperation": # type: ignore[name-defined] # noqa: F821 + # This is a workaround to deal with cases where the input layouts have changed + # between autotuning and rendering. This happens if the inputs layout + # are FlexibleLayout instances. In this case, we need to update the + # op's input layouts. It is a hack, because now the op + # we benchmarked is not the same as the op we render, + # but there is no simple way to fix this in the autotuner, since that would + # potentially disable other optimizations. + a_layout = X.get_layout() + b_layout = W.get_layout() + c_layout = Bias.get_layout() if Bias is not None else None + + d_layout = copy.deepcopy(Y.get_layout()) + match_list = [ + CUTLASSGemmTemplate.layout_match(buf.get_layout(), op_layout) + for buf, op_layout in zip( + (X, W, Bias, Y), + (op.A.layout, op.B.layout, op.C.layout, op.D.layout), + ) + if buf is not None + ] + all_match = all(match_list) + if all_match: + return op + log.warning( + f"Cutlass GEMM Layout change: Input and/or output layouts have changed between autotuning/retuning and call to render on {self}. Applying workaround. This can lead to suboptimal performance. Match List: {match_list}" # noqa: G004, B950 + ) + new_op = copy.deepcopy(op) + + if a_layout is not None: + new_op.A.layout = CUTLASSGemmTemplate.cutlass_layout(a_layout) + if b_layout is not None: + new_op.B.layout = CUTLASSGemmTemplate.cutlass_layout(b_layout) + if c_layout is not None: + new_op.C.layout = CUTLASSGemmTemplate.cutlass_layout(c_layout) + new_op.C.element = cutlass_utils.torch_dtype_to_cutlass_type(c_layout.dtype) + if d_layout is not None: + new_op.D.layout = CUTLASSGemmTemplate.cutlass_layout(d_layout) + return new_op + + def _dtype_match( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> bool: + """ + Checking dtypes of A, B, acc, D here. + + Empirically speaking, CUTLASS2x ops have same dtype for C and D. + """ + X = self.input_nodes[0] + W = self.input_nodes[1] + + accumulator_torch_dtype = cutlass_utils.get_accumulator_dtype( + [X.get_dtype(), W.get_dtype()], + ) + if not ( + cutlass_utils.dtype_match(X.get_dtype(), op.A.element) + and cutlass_utils.dtype_match(W.get_dtype(), op.B.element) + and cutlass_utils.dtype_match( + self.output_node.get_layout().dtype, op.D.element + ) + and cutlass_utils.dtype_match( + accumulator_torch_dtype, op.accumulator_type() + ) + ): + return False + + return True + + @classmethod + def global_filter_ops( + cls, + ops: list["cutlass_library.gemm_op.GemmOperation"], # type: ignore[name-defined] # noqa: F821 + ) -> list["cutlass_library.gemm_op.GemmOperation"]: # type: ignore[name-defined] # noqa: F821 + """ + Filter ops without using information about the torch op, input nodes and output node. + """ + assert cutlass_utils.try_import_cutlass() + import cutlass_library.library as cutlass_lib # type: ignore[import] + + # Skip simt kernels + ops = [ + op + for op in ops + if op.tile_description.math_instruction.opcode_class + != cutlass_lib.OpcodeClass.Simt + ] + + # only keep the set of row x column ops + # for other layout, we modify in place in filter_op, after deepcopy + ops = [ + op + for op in ops + if op.A.layout.name == "RowMajor" and op.B.layout.name == "ColumnMajor" + ] + + # filter by supported accumulator types + ops = [ + op + for op in ops + if any( + dtype_match(torch_dtype, op.accumulator_type()) + for torch_dtype in ACCUMULATOR_DTYPES + ) + ] + + # check if dtypes of A and B are supported + ops = [ + op + for op in ops + if any(dtype_match(torch_dtype, op.A.element) for torch_dtype in XW_DTYPES) + and any(dtype_match(torch_dtype, op.B.element) for torch_dtype in XW_DTYPES) + ] + + return ops + + def filter_op( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> "cutlass_library.gemm_op.GemmOperation": # type: ignore[name-defined] # noqa: F821 + """ + Helper method: + + Determines whether a given Cutlass GEMM op definition is suitable for the current + input / output of the operation that this template is supposed to implement. + + Takes memory layout, dtype and support for EVT operations into account, + and filters potentially problematic ops. + + Returns None if the op is not suitable, otherwise returns the op to be used, which might + have been mutated. + """ + + if op.gemm_kind not in self._get_supported_ops(): + return None + + X = self.input_nodes[0] + W = self.input_nodes[1] + + # Filter ops according to the shape match. + if not self._shape_match(op): + return None + + # Filter ops by dtypes. + if not self._dtype_match(op): + return None + + # Filter ops by alignment. + if not self._alignment_match(op): + log.debug( + "Skipping due to alignment mismatch. op: %s", op.configuration_name() + ) + return None + + # only use stream k for static shape + if op.tile_scheduler.name == "StreamK": + static_shape = PythonWrapperCodegen.statically_known_list_of_ints_or_none( + tuple(X.get_size()) + tuple(W.get_size()) + ) + if not static_shape: + return None + + # Update op. + op = copy.deepcopy(op) + + # set layouts for X and W + self.set_layout(op.A, X.get_layout()) + self.set_layout(op.B, W.get_layout()) + + # Set output layout. + op.D.layout = CUTLASSGemmTemplate.cutlass_layout(self.output_node.get_layout()) + + # Filter ops by alignments and set alignments. + status = ( + self.set_alignment(X.get_layout(), op.A) + and self.set_alignment(W.get_layout(), op.B) + and self.set_alignment(self.output_node.get_layout(), op.D) + ) + if not status: + log.debug( + "Skipping due to alignment setting failure. op: %s", + op.configuration_name(), + ) + return None + + if inductor_cuda_config.cutlass_tma_only and not self._has_tma_epilogue(op): + return None + + # Set epilogue. + # TODO: update epilogue functor according to epilogues. + op.element_epilogue = op.accumulator_type() + + if self.use_fast_accum is not None: + is_op_fast_accum = "fastaccum" in op.configuration_name() + if self.use_fast_accum ^ is_op_fast_accum: + return None + + # Set bias layout and alignment. + status = self._set_bias_layout_and_alignment(op) + if not status: + log.debug( + "Skipping due to bias layout and alignment setting failure. op: %s", + op.configuration_name(), + ) + return None + + # Apply regex filters at the end when configuration name doesn't change anymore + if inductor_cuda_config.cutlass_op_allowlist_regex: + if not re.search( + inductor_cuda_config.cutlass_op_allowlist_regex, op.configuration_name() + ): + return None + if inductor_cuda_config.cutlass_op_denylist_regex is not None: + if re.search( + inductor_cuda_config.cutlass_op_denylist_regex, op.configuration_name() + ): + return None + + return op + + def gen_ops(self) -> "list[tuple[str, cutlass_gemm_op.GemmOperation]]": # type: ignore[name-defined] # noqa: F821 + """ + Creates a list of Cutlass GemmOperation instances that match the operation this template is designed to represent. + The matching is carried out with respect to the input and output specifications of the operation. + + No function arguments. + + Returns: + List[tuple[str, cutlass_gemm_op.GemmOperation]]: A list of (cutlass_name, GemmOperation) + tuples that are compatible with the operation requirements of this template. + """ + assert cutlass_utils.try_import_cutlass() + import cutlass_library.gemm_operation as cutlass_gemm_op + + if self.cache_key in self.filtered_ops_cache: + log.debug("Using cached ops for %s", self.cache_key) + return self.filtered_ops_cache[self.cache_key] + + with dynamo_timed("CUTLASSGemmTemplate.maybe_fetch_ops"): + maybe_ops = maybe_fetch_ops() + if maybe_ops is None: + log.debug("Cannot fetch ops from cache, generating ops from scratch") + full_ops = cutlass_utils.gen_ops() + ops = pytree.tree_flatten(full_ops)[0] + else: + log.debug("Using cached ops from cache") + ops = maybe_ops + + ops = self.global_filter_ops(ops) + + res: dict[str, cutlass_gemm_op.GemmOperation] = {} + start_time = time.time() + for op in ops: + # if changed, need to also change CUTLASS_OPERATION_KIND + assert isinstance(op, cutlass_gemm_op.GemmOperation) + filter_res = self.filter_op(op) + if ( + filter_res is not None + and res.get(filter_res.configuration_name(), None) is None + ): + res[filter_res.configuration_name()] = filter_res + log.info( + "Got cutlass configs: total number of ops: %d. Filtering took %.2f seconds", + len(res), + time.time() - start_time, + ) + sorted_res = sorted(res.items()) + ret_res = sorted_res[: inductor_cuda_config.cutlass_max_profiling_configs] + if len(self.filtered_ops_cache) < 50: + self.filtered_ops_cache[self.cache_key] = ret_res + else: + log.debug("Not caching ops since filtered_ops_cache has reached size 50.") + return ret_res + + def gemm_mode(self) -> str: + """ + Returns a Cutlass GEMM mode string for the current operation, dependent on whether this op implements + a batched GEMM or a simple GEMM without batch dimension. + + Returns: + str: A string indicating the Cutlass GEMM mode. If the output node has more than two dimensions, + "cutlass::gemm::GemmUniversalMode::kBatched" is returned, otherwise + "cutlass::gemm::GemmUniversalMode::kGemm" is returned. + """ + sizes = self.output_node.get_size() + if len(sizes) > 2: + return "cutlass::gemm::GemmUniversalMode::kBatched" + else: + return "cutlass::gemm::GemmUniversalMode::kGemm" + + def render( # type: ignore[override] + self, + kernel: CUDATemplateKernel, + op: "cutlass_gemm_op.GemmOperation" = None, # type: ignore[name-defined] # noqa: F821 + template_buffer_node: Optional[CUDATemplateBuffer] = None, + epilogue_nodes: Optional[list[BaseSchedulerNode]] = None, + **kwargs, + ) -> str: + """ + The primary entry point for the code rendering process used in this template. + Renders the Cutlass based CUDA C++ code for the GEMM Kernel that this template is designed to implement, + including potentially fused epilogues. + + Args: + kernel (CUDATemplateKernel): The kernel to be rendered. + op (cutlass_gemm_op.GemmOperation, optional): A GEMM operation that is required to be compatible with the + input and output definitions as well as a possible epilogue. Defaults to None. + **kwargs: Additional keyword arguments. Currently unused. + + Returns: + str: Cutlass based CUDA C++ code fragment as a string, to be used by the current + CUDATemplateKernel or autotuning code. + + Note: + All inputs and their corresponding buffer addresses and names take precedence over previously + passed inputs to the template at construction time. However, they should be layout compatible. + """ + assert cutlass_utils.try_import_cutlass() + import cutlass_library.gemm_operation as cutlass_gemm_op + import cutlass_library.library as cutlass_lib + + assert isinstance(op, cutlass_gemm_op.GemmOperation), ( + "op argument is required and has to be an instance of GemmOperation" + ) + + if epilogue_nodes and not self._has_tma_epilogue(op): + raise NotImplementedError( + "Non-TMA epilogue visitor tree is not supported in Cutlass." + ) + + assert len(self.input_nodes) >= 2 and self.output_node is not None + X, W = self.input_nodes[0], self.input_nodes[1] + for input_node in self.input_nodes: + if not isinstance(X.layout, FixedLayout): + input_node.freeze_layout() + + Y = self.output_node + if template_buffer_node is not None: + Y = template_buffer_node + + Bias, extra_inputs, extra_names = self._get_extra_inputs_and_names(op) + + # Define Kernel call signature + # Important: This step also populates Kernel name to node mapping data structures, + # which are required further below ( for example by the template renderer ) + inputs = [X, W, Bias, *extra_inputs] + names = ["X", "W", "Bias", *extra_names] + ["Y"] + names_str = ",".join(names) + if self.input_reorder is not None: + input_reorder = self.input_reorder + else: + input_reorder = None + + # The layouts might have changed between autotuning and this call if they were FlexibleLayout + # we need to adapt, which might lead to suboptimal performance. + op = self.fix_op_layout(op, X, W, Bias, Y) + + # to make op mutable without affecting others + op = copy.deepcopy(op) + is_scaled_mm = len(self.input_nodes) in (4, 5) + if Bias is not None and not is_scaled_mm: + assert Bias.get_dtype() == X.get_dtype() + # This might have been set to void during filtering, when the assumption was still that there's no C + # operand + op.C.element = op.A.element + + assert op.C.element == op.D.element, ( + f"Expect C and D to have the same dtype, found {op.C.element} and {op.D.element}" + ) + + argument_template, epilogue_template = self._get_template_args(op) + should_swap_xw: bool = False + if Bias is not None and self._has_tma_epilogue(op): + if ( + op.epilogue_schedule + != cutlass_lib.EpilogueScheduleType.EpilogueTransposed + and self.should_swap_XW(Bias) + ): + # TMA epilogue requires bias vector in column major to get best perf. + op = self.swap_XW(op) + should_swap_xw = True + + name_to_buffer = {node.get_name(): node for node in self.input_nodes} + # handle the fake output buffer during lowering + name_to_buffer[Y.get_name()] = Y # type: ignore[assignment] + + if epilogue_nodes or is_scaled_mm: + if epilogue_nodes: + ( + input_names, + output_names, + var_name_to_buffer_name, + evt_py_code, + ) = CutlassEVTCodegen.ir_to_evt_python_code( + Y.get_name(), epilogue_nodes, V.kernel.removed_buffers + ) + + # TODO: mlazos remove this by returning buffer metadata from + # ir_to_evt_python code + for name, buf in ( + V.graph.name_to_buffer | V.graph.graph_inputs + ).items(): + if name not in name_to_buffer: + name_to_buffer[name] = buf # type: ignore[assignment] + + D_output_name = var_name_to_buffer_name["D"] + D_output_buffer = name_to_buffer[D_output_name] + Y = D_output_buffer # type: ignore[assignment] + # Interestingly, I don't think the rest of the layout matters here since we + # use the properties of the Y buffer to fill in D's properties in the epilogue + # args. This is needed though because it defines types expected in the epilogue args. + op.D.element = cutlass_utils.torch_dtype_to_cutlass_type( + D_output_buffer.get_dtype() + ) + + assert output_names, "There should be at least one write" + + epilogue_inputs = [name_to_buffer[name] for name in input_names] + outputs = [name_to_buffer[name] for name in output_names] + else: # Scaled MM, we read the two scale matrices (and optional bias) and write a single output + bias = None if len(self.input_nodes) < 5 else self.input_nodes[4] + bias_name = bias.get_name() if bias else None + + ( + evt_read_names, + var_name_to_buffer_name, + evt_py_code, + ) = scaled_mm_evt( + self.input_nodes[2].get_name(), # scale_A + self.input_nodes[3].get_name(), # scale_B + bias_name, + Y.get_name(), + ) + + input_names = list(evt_read_names) + output_names = [] # We only need Y + epilogue_inputs = [self.input_nodes[2], self.input_nodes[3]] + if bias: + epilogue_inputs.append(bias) + outputs = [] + + acc_dtype = cutlass_utils.get_accumulator_dtype( + [X.get_dtype(), W.get_dtype()] + ) + assert acc_dtype, "Could not determine accumulator dtype" + + evt_name, evt_args, evt_code, evt_arg_renames = self._render_evt( + op, + evt_py_code, + var_name_to_buffer_name, + name_to_buffer, + Y.get_dtype(), + acc_dtype, + ) + + inputs = [ + X, + W, + Bias, + *epilogue_inputs, # type: ignore[list-item] + Y, + *extra_inputs, + ] + input_names = [evt_arg_renames.get(name) for name in input_names] + output_names = [evt_arg_renames.get(name) for name in output_names] + + names_str = ",".join( + ["X", "W", "Bias", *input_names, "Y", *output_names, *extra_names] + ) + else: + evt_name = None + outputs = [Y] + evt_args = f"{{ElementComputeEpilogue({self.alpha}), ElementComputeEpilogue({self.beta})}}" + evt_code = "" + + kernel_call_signature = kernel.def_kernel( + inputs=inputs, # type: ignore[arg-type] + outputs=outputs, # type: ignore[arg-type] + names_str=names_str, + input_reorder=input_reorder, + ) + + test_call_statement = self.test_call_statement(kernel, inputs, names_str) + + instance_definition, instance_type = self._define_gemm_instance(op, evt_name) + + options = { + "alpha": self.alpha, + "beta": self.beta, + "X": X, + "W": W, + "Y": Y, + "kernel_call_signature": kernel_call_signature, + "Bias": Bias, + "epilogue_template": epilogue_template, + "argument_template": argument_template, + "should_swap_xw": should_swap_xw, + "template": self, + "kernel": kernel, + "instance_definition": instance_definition, + "instance_type": instance_type, + "input_reorder": self.input_reorder, + "epilogue_args": evt_args, + "test_call_statement": test_call_statement, + "op_conf_name": op.configuration_name(), + "epilogue_visitor_tree": evt_code, + } + options.update(dict(zip(extra_names, extra_inputs))) + res = self._template_from_string(self._get_template()).render(**options) + if inductor_cuda_config.generate_test_runner and not is_dynamic(X, W, Y, Bias): + test_runner_code = self._template_from_string( + GEMM_STANDALONE_RUNNER_TEMPLATE + ).render(**options) + res += "\n\n" + test_runner_code + + # splice to remove trailing spaces in each line + buf = IndentedBuffer() + buf.splice(res) + return buf.getvalue() + + def test_call_statement( + self, + kernel, + input_nodes, + names_str: str = "", + ) -> str: + """ + Helper method to render the Cutlass CUDA C++ code required for calling the GEMM operation in the standalone + test runner that might also be generated along with the rest of the code, if the corresponding config is + enabled. + + Returns a C++ statement that calls the GEMM operation with the correct arguments. + """ + _, __, arg_types = kernel.args.cpp_argdefs(cutlass_utils.DTYPE_TO_CUTLASS_TYPE) + arg_names = [name.strip() for name in names_str.strip().split(",")] + arg_names = self._update_arg_names_for_test_call_statement( + arg_names, input_nodes + ) + arguments = [ + f"(({arg_type}){arg_name}_data.get())" + for arg_type, arg_name in zip(arg_types, arg_names) + ] + return f"{kernel.kernel_name}({', '.join(arguments)}, M, N, K, B, lda, ldb, ldc, ldd, 0, 0, 0, swizzle, workspace_size_ptr, (uint8_t*)workspace_data.get(), 0);" # noqa: B950 + + def _render_evt( + self, + op: GemmOperation, + evt_py_code: str, + buffer_renames: dict[str, str], + name_to_buffer: dict[str, Buffer], + output_dtype: torch.dtype, + accumulator_dtype: torch.dtype, + ) -> tuple[str, str, str, EVTArgRenames]: # type: ignore[name-defined] # noqa: F821 + raise NotImplementedError("_render_evt in CUTLASSGemmTemplate not implemented") + + +class CUTLASS3xGemmTemplate(CUTLASSGemmTemplate): + """ + CUTLASS 3x GEMM Template, which is used to generate CUTLASS GEMM kernels + including those which allow flexible fusions with epilogues. + """ + + @staticmethod + def add_cutlass_gemm_choices( + choices: list[ChoiceCaller], + layout: ir.Layout, + input_nodes: list[Buffer], + alpha: Union[float, int] = 1, + beta: Union[float, int] = 0, + input_reorder: Optional[list[int]] = None, + use_fast_accum: Optional[bool] = None, + **extra_kwargs, + ) -> None: + template = CUTLASS3xGemmTemplate( + input_nodes, + layout, + alpha, + beta, + input_reorder, + use_fast_accum, + ) + template._add_cutlass_gemm_choices( + choices, layout, input_nodes, alpha, beta, input_reorder, **extra_kwargs + ) + + @staticmethod + @functools.lru_cache(1) + def _get_supported_ops() -> "list[cutlass_library.gemm_operation.GemmOperation]": # type: ignore[name-defined] # noqa: F821 + import cutlass_library.library as cutlass_lib + + return [cutlass_lib.GemmKind.Universal3x] + + def _get_template(self) -> str: + return GEMM_TEMPLATE_CUTLASS_3X + + def _get_template_args( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> tuple[str, Optional[str]]: + return (GEMM_ARGS_CUTLASS_3X, GEMM_ARGS_CUTLASS_3X_EPILOGUE) + + @staticmethod + def _has_tma_epilogue( # noqa: F821 # type: ignore[arg-type,name-defined] + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined,arg-type] # noqa: F821 + ) -> bool: # type: ignore[name-defined] + """Helper method: Determine whether a given Cutlass GEMM op has a TMA Epilogue""" + assert cutlass_utils.try_import_cutlass() + import cutlass_library.library as cutlass_lib + + result = False + if op.gemm_kind == cutlass_lib.GemmKind.Universal3x: + epilogue_schedule_str = str(op.epilogue_schedule).split(".")[-1] + result = epilogue_schedule_str.lower().startswith("tma") + return result + + @staticmethod + def supports_epilogue_fusion(op: GemmOperation) -> bool: + return CUTLASS3xGemmTemplate._has_tma_epilogue(op) + + def _are_inputs_layout_compatible(self, layouts: list[Layout]) -> bool: + """ + Evaluates whether input layouts are compatible for General Matrix Multiply (GEMM). + + This function checks compatibility of A, B, and possibly C operand layouts for + a General Matrix Multiply (GEMM) operation, expressed as 'alpha * matmul(A, B) + beta * C'. + It verifies requirements such as matching data types, minimum rank, and suitability + for broadcasting, as defined by PyTorch operations like `torch.matmul`, `torch.aten.mm`, + `addmm`, `bmm`, `baddbmm`, etc. + + Args: + layouts (List[Layout]): List containing 2 or 3 Layout objects representing + the input matrices A, B, and possibly C. + + Returns: + bool: True if layouts are GEMM compatible, otherwise False. + """ + assert 2 <= len(layouts) <= 5 + # Check if A and B are compatible + A_layout, B_layout = layouts[:2] + if len(A_layout.size) < 1: + return False + if len(B_layout.size) < 1: + return False + A_size = list(V.graph.sizevars.size_hints(A_layout.size)) + B_size = list(V.graph.sizevars.size_hints(B_layout.size)) + if len(A_size) < 2: + A_size.insert(0, 1) + if len(B_size) < 2: + A_size.insert(1, 1) + # Are batch dims broadcastable? + while len(A_size) < len(B_size): + A_size.insert(0, 1) + while len(B_size) < len(A_size): + B_size.insert(0, 1) + K = max(A_size[-1], B_size[-2]) + M = A_size[-2] + N = B_size[-1] + if K != A_size[-1] and A_size[-1] != 1: + return False + if K != B_size[-2] and B_size[-1] != 1: + return False + # check batch dim broadcastable + for i in range(len(A_size) - 2): + if A_size[i] != B_size[i] and A_size[i] != 1 and B_size[i] != 1: + return False + if len(layouts) == 3: + C_layout = layouts[2] + C_size = [V.graph.sizevars.size_hint(i) for i in C_layout.size] + while len(C_size) < len(A_size): + C_size.insert(0, 1) + # check batch dims + for i in range(len(A_size) - 2): + bd = max(A_size[i], B_size[i]) + if bd != C_size[i] and C_size[i] != 1: + return False + if len(C_size) > len(A_size): + # This may happen if the last elements of C are contiguous and + # their multiplied size equals the last dim size of B + if M != C_size[len(A_size) - 2] and C_size[len(A_size) - 2] != 1: + return False + remaining_size = 1 + for i in range(len(A_size) - 1, len(C_size)): + remaining_size *= C_size[i] + if N != remaining_size and remaining_size != 1: + return False + return True + assert len(C_size) == len(A_size) + if M != C_size[-2] and C_size[-2] != 1: + return False + if N != C_size[-1] and C_size[-1] != 1: + return False + return True + + def _render_evt( + self, + op: GemmOperation, + evt_py_code: str, + var_name_to_buffer_name: dict[str, str], + name_to_buffer: dict[str, Buffer], + output_dtype: torch.dtype, + accumulator_dtype: torch.dtype, + ) -> tuple[str, str, str, EVTArgRenames]: + from .cutlass_lib_extensions.evt_extensions import create_example_tensors, trace + + acc_dtype = torch_dtype_to_cutlass_type(accumulator_dtype) + output_dtype = torch_dtype_to_cutlass_type(output_dtype) + + examples = create_example_tensors( + var_name_to_buffer_name, + name_to_buffer, # type: ignore[arg-type] + V.graph.sizevars.size_hint, + ) + evt_name, evt_args, evt_code, arg_renames = trace( + evt_py_code, + examples, + acc_dtype, + output_dtype, + op.tile_description, # type: ignore[attr-defined] + op.epilogue_schedule, # type: ignore[attr-defined] + {k: name_to_buffer[v] for k, v in var_name_to_buffer_name.items()}, # type: ignore[arg-type,misc] + V.graph.sizevars.size_hint, + ) + + return ( + evt_name, + evt_args, + evt_code, + arg_renames, + ) + + def _shape_match( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> bool: + return True + + def _alignment_match( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> bool: + return True + + def _set_bias_layout_and_alignment( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> bool: + import cutlass_library.library as cutlass_lib + + has_bias = len(self.input_nodes) == 3 and self.input_nodes[2] is not None + if has_bias: + Bias = self.input_nodes[2] + # bias dtype + op.C.element = cutlass_utils.torch_dtype_to_cutlass_type( + Bias.get_layout().dtype + ) + + # Bias layout + bias_layout = CUTLASSGemmTemplate.cutlass_layout(Bias.get_layout()) + op.C.layout = bias_layout + + # Bias alignment + status = self.set_alignment(Bias.get_layout(), op.C) + if not status: + return False + else: + op.C.element = cutlass_lib.DataType.void + return True + + def _define_gemm_instance( + self, + op: GemmOperation, + evt_name: Optional[str] = None, + ) -> tuple[str, str]: + """Defines and renders the Cutlass / CUDA C++ code for a given GEMM operation instance. + + This function uses the Cutlass library to generate key parts of the codegen process. General Matrix Multiply + forms a core part of a number of scientific applications, so this efficient and adaptable implementation is + crucial. + + Args: + op (cutlass_library.gemm_op.GemmOperation): This is the core GEMM operation that we are defining and rendering. + + Returns: + tuple[str, str]: A tuple where the first part is a string that constitutes the defined GEMM operation in C++ + code (render) and the second part is the string that specifies the operation type. + """ + assert cutlass_utils.try_import_cutlass() + import cutlass_library.library as cutlass_lib + + from .cutlass_lib_extensions import gemm_operation_extensions as gemm_extensions + + emitter = gemm_extensions.EmitGemmUniversal3xInstanceWithEVT(evt_name=evt_name) # type: ignore[call-arg] + + if not hasattr(op, "epilogue_functor") or not isinstance( + op.epilogue_functor, enum.Enum + ): + op = copy.deepcopy(op) + op.epilogue_functor = cutlass_lib.EpilogueFunctor.LinearCombination + + op_def = emitter.emit(op) + pattern = re.compile(r"\s*struct\s(.*?)\s:") + decl = [line for line in op_def.split("\n") if "struct " in line][-1] + + match = pattern.match(decl) + if match is None: + raise RuntimeError("Invalid Gemm config: \n" + op_def) + op_type = match.groups()[0] + if op.gemm_kind == cutlass_lib.GemmKind.Universal3x: + op_def += f"\n using {op_type}_device_type = cutlass::gemm::device::GemmUniversalAdapter<{op_type}>;\n" + op_type = f"{op_type}_device_type" + + return op_def, op_type + + def _get_extra_inputs_and_names( + self, + op: "cutlass_gemm_op.GemmOperation" = None, # type: ignore[name-defined] # noqa: F821 + ) -> tuple[Optional[Buffer], list[Optional[Buffer]], list[str]]: + Bias = self.input_nodes[2] if len(self.input_nodes) == 3 else None + inputs: list[Optional[Buffer]] = [] + names: list[str] = [] + return (Bias, inputs, names) + + def _update_arg_names_for_test_call_statement( + self, + arg_names: list[str], + input_nodes: list[Buffer], + ) -> list[str]: + if input_nodes[2] is None: + del arg_names[2] + else: + # Reorder them as Bias, A, B + if self.input_reorder is not None: + arg_names[0 : len(self.input_reorder)] = [ + arg_names[i] for i in self.input_reorder + ] + return arg_names + + def render_gemm_arguments( + self, + argument_template: str, + epilogue_template: str, + should_swap_xw: bool, + X: IRNode, + W: IRNode, + Bias: IRNode, + Y: IRNode, + alpha: float, + beta: float, + kernel: CUDATemplateKernel, + epilogue_args, + ) -> str: + """ + Render the Cutlass CUDA C++ code required for passing arguments to the GEMM operation. + + Args: + argument_template (str): Template for the GEMM operation arguments. + epilogue_template (str): Template for the epilogue arguments. + should_swap_xw (bool): Determines whether X, W operands should be swapped. If True, applies an explicit + transpose operation to X and W. + X (IRNode): The X input tensor. + W (IRNode): The W input tensor. + Bias (IRNode): The bias tensor. + Y (IRNode): The output tensor. + alpha (float): Scaling factor for the product of the inputs. + beta (float): Scaling factor for the output tensor. + kernel (CUDATemplateKernel): CUDA Template kernel for the operation. + epilogue_args (any): Additional arguments for the epilogue state. + + Returns: + str: A block of CUDA C++ code as a string, ready to be used as arguments for the GEMM operation. + + Note: If `should_swap_xw` is True, a transpose operation will be applied to the X, W, Bias, and Y + tensors. This operation also implies the M and N dimensions of Bias and GEMM output to be swapped + before the function call. + """ + options = { + "alpha": alpha, + "beta": beta, + "X": X, + "W": W, + "Y": Y, + "Bias": Bias, + "template": self, + "kernel": kernel, + "M": "M", + "N": "N", + "epilogue_args": epilogue_args, + } + assert epilogue_template is not None + + if should_swap_xw: + # Swap + def clone_with_transposed_stride(node: IRNode) -> IRNode: + old_layout = node.get_layout() + new_stride = list(old_layout.stride) # type: ignore[union-attr] + new_stride[-2], new_stride[-1] = new_stride[-1], new_stride[-2] + assert old_layout.device is not None + new_layout = FixedLayout( + old_layout.device, + old_layout.dtype, + list(old_layout.size), # type: ignore[union-attr] + new_stride, + old_layout.offset, # type: ignore[union-attr] + ) + return Buffer(name=node.get_name(), layout=new_layout) + + new_X = clone_with_transposed_stride(X) + new_W = clone_with_transposed_stride(W) + new_Bias = clone_with_transposed_stride(Bias) + new_Y = clone_with_transposed_stride(Y) + options["X"], options["W"], options["Bias"], options["Y"] = ( + new_W, + new_X, + new_Bias, + new_Y, + ) + options["M"], options["N"] = "N", "M" + + epilogue_arguments = self._template_from_string(epilogue_template).render( + **options + ) + arguments = self._template_from_string(argument_template).render( + epilogue_arguments=epilogue_arguments, **options + ) + + return arguments + + +class CUTLASS2xGemmTemplate(CUTLASSGemmTemplate): + def __init__( + self, + input_nodes: list[Buffer], + layout: Layout, + alpha: float, + beta: float, + input_reorder: Optional[list[int]] = None, + ): + super().__init__(input_nodes, layout, alpha, beta, input_reorder) + + @staticmethod + def add_cutlass_gemm_choices( + choices: list[ChoiceCaller], + layout: ir.Layout, + input_nodes: list[Buffer], + alpha: Union[float, int] = 1, + beta: Union[float, int] = 0, + input_reorder: Optional[list[int]] = None, + use_fast_accum: Optional[bool] = False, + **extra_kwargs, + ) -> None: + template = CUTLASS2xGemmTemplate( + input_nodes, layout, alpha, beta, input_reorder + ) + template._add_cutlass_gemm_choices( + choices, layout, input_nodes, alpha, beta, input_reorder, **extra_kwargs + ) + + @staticmethod + def _get_supported_ops() -> "list[cutlass_library.gemm_operation.GemmOperation]": # type: ignore[name-defined] # noqa: F821 + import cutlass_library.library as cutlass_lib + + return [cutlass_lib.GemmKind.Universal, cutlass_lib.GemmKind.Sparse] + + @staticmethod + def _has_tma_epilogue(self) -> bool: + return False + + def _get_template(self) -> str: + return GEMM_TEMPLATE_CUTLASS_2X + + def _get_template_args( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> tuple[str, Optional[str]]: + import cutlass_library.library as cutlass_lib + + if op.gemm_kind == cutlass_lib.GemmKind.Sparse: + return (GEMM_ARGS_SPARSE_CUTLASS_2X, None) + + return (GEMM_ARGS_CUTLASS_2X, None) + + def _are_inputs_layout_compatible(self, layouts: list[Layout]) -> bool: + """ + Evaluates whether input layouts are compatible for set of operations supported by this class. + + Args: + layouts (List[Layout]): List containing Layout objects representing + the input matrices. + + Returns: + bool: True if layouts are GEMM compatible, otherwise False. + """ + assert len(layouts) == 2 or len(layouts) == 3 + # Check if A and B are compatible + A_layout, B_layout = layouts[:2] + if len(A_layout.size) != 2: + return False + if len(B_layout.size) != 2: + return False + A_size = [int(i) for i in A_layout.size] + B_size = [int(i) for i in B_layout.size] + K = max(A_size[1], B_size[0]) + return (K == A_size[1] or K == 2 * A_size[1]) and K == B_size[0] + + def _shape_match( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> bool: + import cutlass_library.library as cutlass_lib + + X, W = self.input_nodes[0], self.input_nodes[1] + + if op.gemm_kind == cutlass_lib.GemmKind.Sparse: + return X.get_size()[1] * 2 == W.get_size()[0] + + return X.get_size()[1] == W.get_size()[0] + + def _alignment_match( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> bool: + import cutlass_library.library as cutlass_lib + + if op.gemm_kind != cutlass_lib.GemmKind.Sparse: + return True + + # SparseGemm in CUTLASS has specific alignment check that for + # small k could make some of the choices throw kMisalignedOperand + # CUTLASS error when run, see: + # https://github.com/NVIDIA/cutlass/blob/e01b9b5029b7caca5a43c29f7d2714d7cf1dcae8/include/cutlass/gemm/kernel/sparse_gemm.h#L198-L200 # noqa: B950 + # So, let's skip these choices if that would be the case. + X = self.input_nodes[0] + return (X.get_size()[1] * 2) % op.tile_description.tile_shape[2] == 0 + + def _set_bias_layout_and_alignment( + self, + op: "cutlass_library.gemm_op.GemmOperation", # type: ignore[name-defined] # noqa: F821 + ) -> bool: + import cutlass_library.library as cutlass_lib + + if op.gemm_kind == cutlass_lib.GemmKind.Sparse: + op.C.layout = op.D.layout + return True + + if len(self.input_nodes) >= 3 and self.input_nodes[2] is not None: + Bias = self.input_nodes[2] + bias_layout = CUTLASSGemmTemplate.cutlass_layout(Bias.get_layout()) + if bias_layout != op.D.layout: + # For cutlass2, bias and output layout must match + return False + if not self.set_alignment(Bias.get_layout(), op.C): + return False + else: + op.C.layout = op.D.layout + return True + + def _define_gemm_instance( + self, + op: GemmOperation, + evt_name: Optional[str] = None, + ) -> tuple[str, str]: + """Defines and renders the Cutlass / CUDA C++ code for a given GEMM operation instance. + + This function uses the Cutlass library to generate key parts of the codegen process. General Matrix Multiply + forms a core part of a number of scientific applications, so this efficient and adaptable implementation is + crucial. + + Args: + op (cutlass_library.gemm_op.GemmOperation): This is the core GEMM operation that we are defining and rendering. + + Returns: + tuple[str, str]: A tuple where the first part is a string that constitutes the defined GEMM operation in C++ + code (render) and the second part is the string that specifies the operation type. + """ + assert cutlass_utils.try_import_cutlass() + import cutlass_library.gemm_operation as cutlass_gemm_op + import cutlass_library.library as cutlass_lib + + if op.gemm_kind == cutlass_lib.GemmKind.Sparse: + emitter = cutlass_gemm_op.EmitSparseGemmInstance() + else: + emitter = cutlass_gemm_op.EmitGemmInstance() + op_def = emitter.emit(op) + op_def = op_def.replace( + "cutlass::gemm::device::Gemm", "cutlass::gemm::device::GemmUniversal" + ) + if op.gemm_kind != cutlass_lib.GemmKind.Sparse: + op_def = op_def.replace("false,", "") + pattern = re.compile(r"\s*using\s(.*?)\s=") + decl = op_def.split("\n")[2] + + match = pattern.match(decl) + if match is None: + raise RuntimeError("Invalid Gemm config: \n" + op_def) + op_type = match.groups()[0] + return op_def, op_type + + def _get_extra_inputs_and_names( + self, + op: "cutlass_gemm_op.GemmOperation" = None, # type: ignore[name-defined] # noqa: F821 + ) -> tuple[Optional[Buffer], list[Optional[Buffer]], list[str]]: + import cutlass_library.library as cutlass_lib + + if op.gemm_kind == cutlass_lib.GemmKind.Sparse: + Bias = None + Meta = self.input_nodes[2] + else: + Bias = None if len(self.input_nodes) == 2 else self.input_nodes[2] + Meta = None + inputs = [Meta] + names = ["Meta"] + return (Bias, inputs, names) + + def _update_arg_names_for_test_call_statement( + self, + arg_names: list[str], + input_nodes: list[Buffer], + ) -> list[str]: + if input_nodes[3] is None: + del arg_names[3] + if input_nodes[2] is None: + del arg_names[2] + return arg_names + + def render_gemm_arguments( + self, + instance_type: str, + argument_template: str, + epilogue_template: str, + should_swap_xw: bool, + X: IRNode, + W: IRNode, + Bias: IRNode, + Meta: IRNode, + Y: IRNode, + alpha: float, + beta: float, + kernel: CUDATemplateKernel, + epilogue_args, + ) -> str: + """ + Render the Cutlass CUDA C++ code required for passing arguments to the GEMM operation. + + Args: + instance_type (str): GEMM instance type. + argument_template (str): Template for the GEMM operation arguments. + epilogue_template (str): Template for the epilogue arguments. + should_swap_xw (bool): Determines whether X, W operands should be swapped. If True, applies an explicit + transpose operation to X and W. + X (IRNode): The X input tensor. + W (IRNode): The W input tensor. + Bias (IRNode): The bias tensor. + Meta (IRNode): The meta tensor. + Y (IRNode): The output tensor. + alpha (float): Scaling factor for the product of the inputs. + beta (float): Scaling factor for the output tensor. + kernel (CUDATemplateKernel): CUDA Template kernel for the operation. + epilogue_args (any): Additional arguments for the epilogue state. + + Returns: + str: A block of CUDA C++ code as a string, ready to be used as arguments for the GEMM operation. + + Note: If `should_swap_xw` is True, a transpose operation will be applied to the X, W, Bias, and Y + tensors. This operation also implies the M and N dimensions of Bias and GEMM output to be swapped + before the function call. + """ + options = { + "instance_type": instance_type, + "alpha": alpha, + "beta": beta, + "X": X, + "W": W, + "Y": Y, + "Bias": Bias, + "Meta": Meta, + "template": self, + "kernel": kernel, + "M": "M", + "N": "N", + "epilogue_args": epilogue_args, + } + + if epilogue_template is None: + arguments = self._template_from_string(argument_template).render( + split_k=1, **options + ) + return arguments + + epilogue_arguments = self._template_from_string(epilogue_template).render( + **options + ) + arguments = self._template_from_string(argument_template).render( + epilogue_arguments=epilogue_arguments, **options + ) + + return arguments diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/serialization.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/serialization.py new file mode 100644 index 0000000000000000000000000000000000000000..a17f04b0a1b5a25ee623880eac8daf56a63e8ef4 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda/serialization.py @@ -0,0 +1,507 @@ +# mypy: allow-untyped-defs +import functools +import json +from enum import Enum +from typing import Any, Optional + +from torch._inductor.codegen.cuda.cutlass_utils import try_import_cutlass + + +class CUTLASSOperationSerializer: + """Serializes and deserializes CUTLASS GEMM operations to/from JSON. + + Handles GemmOperation objects and their nested components (TileDescription, TensorDescription). + """ + + # not used, but keeping in case we want to generalize the serializer + _SUPPORTED_CLASSES: list[str] = [ + "GemmOperation", + "GemmKind", + "TileDescription", + "TensorDescription", + "DataType", + "EpilogueFunctor", + "EpilogueFunctor3x", + "SwizzlingFunctor", + "KernelScheduleType", + "EpilogueScheduleType", + "TileSchedulerType", + ] + + @classmethod + def serialize(cls, operation: "GemmOperation") -> str: # type: ignore[name-defined] # noqa: F821 + """Serialize a GEMM operation to JSON string. + + Args: + operation: GemmOperation object + + Returns: + str: JSON string representation of the operation + """ + assert operation.__class__.__qualname__ == "GemmOperation", ( + "Only GemmOperation objects are supported via the main API" + ) + return json.dumps(cls._gemm_operation_to_json(operation)) + + @classmethod + def deserialize(cls, json_str: str) -> "GemmOperation": # type: ignore[name-defined] # noqa: F821 + """Deserialize JSON string to a GEMM operation. + + Args: + json_str: JSON string of a GEMM operation + + Returns: + GemmOperation: Reconstructed operation + """ + json_dict = json.loads(json_str) + return cls._json_to_gemm_operation(json_dict) + + @classmethod + def _gemm_operation_to_json(cls, operation: "GemmOperation") -> dict[str, Any]: # type: ignore[name-defined] # noqa: F821 + """Convert GemmOperation to JSON-serializable dict. + + Args: + operation: GemmOperation object + + Returns: + dict: Dictionary representation + """ + from cutlass_library.library import TensorDescription + + # Create the main dictionary with required and optional parameters + result = { + # Required parameters + "gemm_kind": cls._enum_to_json(operation.gemm_kind), + "arch": operation.arch, + "tile_description": cls._tile_description_to_json( + operation.tile_description + ), + "A": cls._tensor_description_to_json(operation.A), + "B": cls._tensor_description_to_json(operation.B), + "C": cls._tensor_description_to_json(operation.C), + "element_epilogue": cls._enum_to_json(operation.element_epilogue), + # Optional parameters + "epilogue_functor": cls._enum_to_json(operation.epilogue_functor), + "swizzling_functor": cls._enum_to_json(operation.swizzling_functor), + "D": cls._tensor_description_to_json(operation.D) if operation.D else None, + "kernel_schedule": cls._enum_to_json(operation.kernel_schedule), + "epilogue_schedule": cls._enum_to_json(operation.epilogue_schedule), + "tile_scheduler": cls._enum_to_json(operation.tile_scheduler), + } + + # Process optional attributes + optional_attrs = [ + "mixed_input_mode", + "mixed_input_shuffle", + "ScaleFactorA", + "ScaleFactorB", + "ScaleFactorD", + "ScaleFactorMVecSize", + "ScaleFactorNVecSize", + "ScaleFactorKVecSize", + "ScaleFactorVectorSize", + "is_3x", + ] + + for attr in optional_attrs: + if not hasattr(operation, attr): + continue + + value = getattr(operation, attr) + + if isinstance(value, TensorDescription): + result[attr] = cls._tensor_description_to_json(value) + elif isinstance(value, Enum): + result[attr] = cls._enum_to_json(value) + else: + result[attr] = value + + return result + + @classmethod + def _json_to_gemm_operation(cls, json_dict: dict[str, Any]) -> "GemmOperation": # type: ignore[name-defined] # noqa: F821 + """Convert JSON dict to GemmOperation object. + + Args: + json_dict: Dictionary representation + + Returns: + GemmOperation: Reconstructed object + """ + from cutlass_library import DataType + from cutlass_library.gemm_operation import GemmKind, GemmOperation + from cutlass_library.library import ( + EpilogueFunctor, + EpilogueFunctor3x, + EpilogueScheduleType, + KernelScheduleType, + MixedInputMode, + SwizzlingFunctor, + TileSchedulerType, + ) + + # Extract constructor parameters from the JSON dictionary + gemm_kind = cls._json_to_enum(json_dict["gemm_kind"], GemmKind) + arch = json_dict["arch"] + tile_description = cls._json_to_tile_description(json_dict["tile_description"]) + A = cls._json_to_tensor_description(json_dict.get("A"), "A") + B = cls._json_to_tensor_description(json_dict.get("B"), "B") + C = cls._json_to_tensor_description(json_dict.get("C"), "C") + element_epilogue = cls._json_to_enum(json_dict["element_epilogue"], DataType) + + # Get optional parameters with defaults + epilogue_functor = cls._json_to_enum( + json_dict.get("epilogue_functor"), + EpilogueFunctor3x if json_dict.get("is_3x") else EpilogueFunctor, + ) + swizzling_functor = cls._json_to_enum( + json_dict.get("swizzling_functor"), SwizzlingFunctor + ) + D = cls._json_to_tensor_description(json_dict.get("D"), "D") + kernel_schedule = cls._json_to_enum( + json_dict.get("kernel_schedule"), KernelScheduleType + ) + epilogue_schedule = cls._json_to_enum( + json_dict.get("epilogue_schedule"), EpilogueScheduleType + ) + tile_scheduler = cls._json_to_enum( + json_dict.get("tile_scheduler"), TileSchedulerType + ) + + mixed_input_mode = cls._json_to_enum( + json_dict.get("mixed_input_mode"), MixedInputMode + ) + mixed_input_shuffle = json_dict.get("mixed_input_shuffle", False) + + # Scale factors + ScaleFactorA = cls._json_to_enum(json_dict.get("ScaleFactorA"), DataType) + ScaleFactorB = cls._json_to_enum(json_dict.get("ScaleFactorB"), DataType) + + ScaleFactorD = None + if "ScaleFactorD" in json_dict and "ScaleFactorVectorSize" in json_dict: + ScaleFactorD = { + "tensor": cls._json_to_tensor_description( + json_dict.get("ScaleFactorD"), "ScaleFactorD" + ), + "vector_size": json_dict.get("ScaleFactorVectorSize"), + } + + ScaleFactorMVecSize = json_dict.get("ScaleFactorMVecSize") + ScaleFactorNVecSize = json_dict.get("ScaleFactorNVecSize") + ScaleFactorKVecSize = json_dict.get("ScaleFactorKVecSize") + + # Create the GemmOperation with the extracted parameters + operation = GemmOperation( + gemm_kind=gemm_kind, + arch=arch, + tile_description=tile_description, + A=A, + B=B, + C=C, + element_epilogue=element_epilogue, + epilogue_functor=epilogue_functor, + swizzling_functor=swizzling_functor, + D=D, + kernel_schedule=kernel_schedule, + epilogue_schedule=epilogue_schedule, + tile_scheduler=tile_scheduler, + mixed_input_mode=mixed_input_mode, + mixed_input_shuffle=mixed_input_shuffle, + ScaleFactorA=ScaleFactorA, + ScaleFactorB=ScaleFactorB, + ScaleFactorD=ScaleFactorD, + ScaleFactorMVecSize=ScaleFactorMVecSize, + ScaleFactorNVecSize=ScaleFactorNVecSize, + ScaleFactorKVecSize=ScaleFactorKVecSize, + ) + + return operation + + @classmethod + @functools.lru_cache(None) + def _tile_description_to_json(cls, tile_desc: "TileDescription") -> str: # type: ignore[name-defined] # noqa: F821 + """ + Convert TileDescription to JSON string. + + Args: + tile_desc: TileDescription object + + Returns: + str: JSON string representation + """ + + # Create the main dictionary with field names matching TileDescription constructor parameters + result = { + "threadblock_shape": tile_desc.threadblock_shape, + "stages": tile_desc.stages, + "warp_count": tile_desc.warp_count, + "math_instruction": cls._math_instruction_to_json( + tile_desc.math_instruction + ), + "min_compute": tile_desc.minimum_compute_capability, # Store as min_compute for constructor + "max_compute": tile_desc.maximum_compute_capability, # Store as max_compute for constructor + "cluster_shape": tile_desc.cluster_shape, + "explicit_vector_sizes": tile_desc.explicit_vector_sizes, + } + + # Add tile_shape if it exists and differs from threadblock_shape + if ( + hasattr(tile_desc, "tile_shape") + and tile_desc.tile_shape != tile_desc.threadblock_shape + ): + result["tile_shape"] = tile_desc.tile_shape + + return json.dumps(result) + + @classmethod + @functools.lru_cache(None) + def _json_to_tile_description( + cls, json_dict: Optional[str] + ) -> Optional["TileDescription"]: # type: ignore[name-defined] # noqa: F821 + """ + Convert JSON dict to TileDescription object. + + Args: + json_dict: Dictionary representation + + Returns: + TileDescription: Reconstructed object + """ + if json_dict is None: + return None + + tile_dict = json.loads(json_dict) + + from cutlass_library.library import TileDescription + + math_instruction = cls._json_to_math_instruction(tile_dict["math_instruction"]) + + # Get compute capability values, checking both naming conventions + min_compute = tile_dict.get( + "min_compute", tile_dict.get("minimum_compute_capability") + ) + max_compute = tile_dict.get( + "max_compute", tile_dict.get("maximum_compute_capability") + ) + + # Get cluster shape with default value + cluster_shape = tile_dict.get("cluster_shape", [1, 1, 1]) + + # Create the TileDescription object + tile_desc = TileDescription( + threadblock_shape=tile_dict["threadblock_shape"], + stages=tile_dict["stages"], + warp_count=tile_dict["warp_count"], + math_instruction=math_instruction, + min_compute=min_compute, + max_compute=max_compute, + cluster_shape=cluster_shape, + explicit_vector_sizes=tile_dict.get("explicit_vector_sizes"), + ) + + # Set tile_shape if it exists and differs from threadblock_shape + if ( + "tile_shape" in tile_dict + and tile_dict["tile_shape"] != tile_dict["threadblock_shape"] + ): + tile_desc.tile_shape = tile_dict["tile_shape"] + + return tile_desc + + @classmethod + @functools.lru_cache(None) + def _math_instruction_to_json( + cls, + math_instruction: Optional["MathInstruction"], # type: ignore[name-defined] # noqa: F821 + ) -> Optional[str]: + """Convert MathInstruction to JSON string. + + Args: + math_instruction: MathInstruction object + + Returns: + Optional[str]: JSON string representation or None + """ + if math_instruction is None: + return None + + result = { + "instruction_shape": math_instruction.instruction_shape, + "element_a": cls._enum_to_json(math_instruction.element_a), + "element_b": cls._enum_to_json(math_instruction.element_b), + "element_accumulator": cls._enum_to_json( + math_instruction.element_accumulator + ), + "opcode_class": cls._enum_to_json(math_instruction.opcode_class), + "math_operation": cls._enum_to_json(math_instruction.math_operation), + "element_scale_factor": cls._enum_to_json( + math_instruction.element_scale_factor + ), + } + + return json.dumps(result) + + @classmethod + @functools.lru_cache(None) + def _json_to_math_instruction( + cls, json_dict: Optional[str] + ) -> Optional["MathInstruction"]: # type: ignore[name-defined] # noqa: F821 + """Convert JSON string to MathInstruction object. + + Args: + json_dict: JSON string representation + + Returns: + Optional[MathInstruction]: Reconstructed object or None + """ + if json_dict is None: + return None + + from cutlass_library import DataType + from cutlass_library.library import MathInstruction, MathOperation, OpcodeClass + + mi_dict = json.loads(json_dict) + + # Convert string enum names back to enum values + element_a = cls._json_to_enum(mi_dict["element_a"], DataType) + element_b = cls._json_to_enum(mi_dict["element_b"], DataType) + element_acc = cls._json_to_enum(mi_dict["element_accumulator"], DataType) + + # Get the opcode_class enum + opcode_class = cls._json_to_enum(mi_dict["opcode_class"], OpcodeClass) + + # Get the math_operation enum + math_op = cls._json_to_enum(mi_dict["math_operation"], MathOperation) + + # Create the MathInstruction object + math_instruction_obj = MathInstruction( + instruction_shape=mi_dict["instruction_shape"], + element_a=element_a, + element_b=element_b, + element_accumulator=element_acc, + opcode_class=opcode_class, + math_operation=math_op, + ) + + # Add element_scale_factor if it exists + if ( + "element_scale_factor" in mi_dict + and mi_dict["element_scale_factor"] is not None + ): + math_instruction_obj.element_scale_factor = cls._json_to_enum( + mi_dict["element_scale_factor"], DataType + ) + + return math_instruction_obj + + @classmethod + @functools.lru_cache(None) + def _tensor_description_to_json( + cls, + tensor_desc: Optional["TensorDescription"], # type: ignore[name-defined] # noqa: F821 + ) -> Optional[str]: + """Convert TensorDescription to JSON string. + + Args: + tensor_desc: TensorDescription object + + Returns: + Optional[str]: JSON string representation or None + """ + if tensor_desc is None: + return None + + result = { + "element": cls._enum_to_json(tensor_desc.element), + "layout": cls._enum_to_json(tensor_desc.layout), + "alignment": tensor_desc.alignment, + "complex_transform": cls._enum_to_json(tensor_desc.complex_transform), + } + + return json.dumps(result) + + @classmethod + @functools.lru_cache(None) + def _json_to_tensor_description( + cls, + json_dict: Optional[str], + tensor_name: Optional[str] = None, + ) -> Optional["TensorDescription"]: # type: ignore[name-defined] # noqa: F821 + """Convert JSON string to TensorDescription object. + + Args: + json_dict: JSON string representation + tensor_name: Name of the tensor to avoid cache in the same op + + Returns: + Optional[TensorDescription]: Reconstructed object or None + """ + if json_dict is None: + return None + + tensor_dict = json.loads(json_dict) + + from cutlass_library import DataType + from cutlass_library.library import ( + ComplexTransform, + LayoutType, + TensorDescription, + ) + + element = cls._json_to_enum(tensor_dict["element"], DataType) + layout = cls._json_to_enum(tensor_dict["layout"], LayoutType) + alignment = tensor_dict["alignment"] + complex_transform = cls._json_to_enum( + tensor_dict["complex_transform"], ComplexTransform + ) + + return TensorDescription(element, layout, alignment, complex_transform) + + @classmethod + @functools.lru_cache(None) + def _enum_to_json(cls, enum_value: Optional[Enum]) -> Optional[str]: + """Convert enum value to JSON string. + + Args: + enum_value: Enum value + + Returns: + Optional[str]: JSON string representation or None + """ + if enum_value is None: + return None + + result = { + "type": enum_value.__class__.__name__, + "name": enum_value.name, + } + + return json.dumps(result) + + @classmethod + @functools.lru_cache(None) + def _json_to_enum(cls, json_dict: Optional[str], enum_class: Any) -> Optional[Enum]: + """Convert JSON string to enum value. + + Format: {name: "EnumName", value: 1} + + Args: + json_dict: JSON string representation + enum_class: Target enum class + + Returns: + Optional[Enum]: Reconstructed enum value or None + """ + if json_dict is None: + return None + + enum_dict = json.loads(json_dict) + + return enum_class[enum_dict["name"]] + + +@functools.lru_cache(1) +def get_cutlass_operation_serializer() -> Optional[CUTLASSOperationSerializer]: + if not try_import_cutlass(): + return None + return CUTLASSOperationSerializer() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda_combined_scheduling.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda_combined_scheduling.py new file mode 100644 index 0000000000000000000000000000000000000000..8779a9e86cda65cd7859a4a693ff2fb6a1ddba70 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cuda_combined_scheduling.py @@ -0,0 +1,162 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +from typing import Any, Optional, TYPE_CHECKING, Union + +from ..scheduler import ( + BaseSchedulerNode, + BaseScheduling, + FusedSchedulerNode, + Scheduler, + SchedulerNode, +) +from .cuda.cuda_cpp_scheduling import CUDACPPScheduling +from .cutedsl.cutedsl_scheduling import CuteDSLScheduling +from .rocm.rocm_cpp_scheduling import ROCmCPPScheduling +from .triton import TritonScheduling + + +if TYPE_CHECKING: + from collections.abc import Sequence + from typing import TypeAlias + + from sympy import Expr + + import torch + from torch.utils._ordered_set import OrderedSet + + from .common import BackendFeature + + _IntLike: TypeAlias = Union[int, Expr] + + +class CUDACombinedScheduling(BaseScheduling): + """ + Scheduler for CUDA Kernels, which delegates calls as appropriate + to the CUDA-C++ and Triton Schedulers, which both work for CUDA devices + and use a unified-wrapper for codegen. + + If Scheduling code needs to be specialized for the case of mixed Triton / CUDA C++ code, + this would also be the place to do it. + """ + + def __init__(self, scheduler: Optional[Scheduler]) -> None: + super().__init__(scheduler) + self._triton_scheduling = TritonScheduling(scheduler) + self._cuda_cpp_scheduling = CUDACPPScheduling(scheduler) + self._rocm_cpp_scheduling = ROCmCPPScheduling(scheduler) + self._cutedsl_scheduling = CuteDSLScheduling(scheduler) + + def get_backend_features(self, device: torch.device) -> OrderedSet[BackendFeature]: + return self._triton_scheduling.get_backend_features(device) + + def choose_node_backend(self, node: BaseSchedulerNode) -> BaseScheduling: + if self._cuda_cpp_scheduling.is_cuda_cpp_template(node): + return self._cuda_cpp_scheduling + if self._rocm_cpp_scheduling.is_rocm_cpp_template(node): + return self._rocm_cpp_scheduling + if self._cutedsl_scheduling.is_cutedsl_template(node): + return self._cutedsl_scheduling + return self._triton_scheduling + + def can_fuse_vertical( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + if self._cuda_cpp_scheduling.can_fuse_vertical(node1, node2): + return True + elif self._cuda_cpp_scheduling.is_cuda_cpp_template( + node1 + ) or self._cuda_cpp_scheduling.is_cuda_cpp_template(node2): + return False + # CuteDSL doesn't support vertical fusion currently + elif self._cutedsl_scheduling.is_cutedsl_template( + node1 + ) or self._cutedsl_scheduling.is_cutedsl_template(node2): + return False + return self._triton_scheduling.can_fuse_vertical(node1, node2) + + def can_fuse_horizontal( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + for node in (node1, node2): + if self._cuda_cpp_scheduling.is_cuda_cpp_template(node): + return self._cuda_cpp_scheduling.can_fuse_horizontal( + node1, node2 + ) # always False at the moment + if self._cutedsl_scheduling.is_cutedsl_template(node): + return self._cutedsl_scheduling.can_fuse_horizontal( + node1, node2 + ) # always False at the moment + return self._triton_scheduling.can_fuse_horizontal(node1, node2) + + def group_fn( + self, sizes: Sequence[Sequence[_IntLike]] + ) -> tuple[tuple[_IntLike, ...], ...]: + return self._triton_scheduling.group_fn(sizes) + + def codegen_template( + self, + template_node: BaseSchedulerNode, + epilogue_nodes: Sequence[BaseSchedulerNode], + prologue_nodes: Sequence[BaseSchedulerNode], + ) -> Optional[str]: + if self._cuda_cpp_scheduling.is_cuda_cpp_template(template_node): + assert not prologue_nodes + return self._cuda_cpp_scheduling.codegen_template( + template_node, epilogue_nodes, prologue_nodes + ) + elif self._rocm_cpp_scheduling.is_rocm_cpp_template(template_node): + assert not epilogue_nodes + assert not prologue_nodes + return self._rocm_cpp_scheduling.codegen_template( + template_node, epilogue_nodes, prologue_nodes + ) + elif self._cutedsl_scheduling.is_cutedsl_template(template_node): + # TODO remove this when we add epilogue support + assert not epilogue_nodes + assert not prologue_nodes + return self._cutedsl_scheduling.codegen_template( + template_node, epilogue_nodes, prologue_nodes + ) + else: + return self._triton_scheduling.codegen_template( + template_node, epilogue_nodes, prologue_nodes + ) + + def codegen_mix_order_reduction(self, node): + return self._triton_scheduling.codegen_mix_order_reduction(node) + + def codegen_node(self, node: Union[FusedSchedulerNode, SchedulerNode]) -> None: + return self._triton_scheduling.codegen_node(node) + + def codegen_sync(self) -> None: + return self._triton_scheduling.codegen_sync() + + def flush(self) -> None: + return self._triton_scheduling.flush() + + def codegen_combo_kernel(self, *args: Any, **kwargs: Any) -> None: + return self._triton_scheduling.codegen_combo_kernel(*args, **kwargs) + + def benchmark_fused_nodes( + self, nodes: Sequence[BaseSchedulerNode] + ) -> tuple[float, str]: + return self._triton_scheduling.benchmark_fused_nodes(nodes) + + def benchmark_codegened_module(self, module): + return self._triton_scheduling.benchmark_codegened_module(module) + + def generate_kernel_code_from_nodes( + self, + nodes: Sequence[Any], + benchmark_kernel: bool = False, + hint_override: Optional[int] = None, + ) -> str: + return self._triton_scheduling.generate_kernel_code_from_nodes( + nodes, benchmark_kernel, hint_override=hint_override + ) + + def benchmark_combo_kernel( + self, node_list: Sequence[BaseSchedulerNode] + ) -> tuple[float, float, list[Optional[str]]]: + return self._triton_scheduling.benchmark_combo_kernel(node_list) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..f12fa963fd60c00deb9f36f9515e3e794c9529ef --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/__init__.py @@ -0,0 +1,8 @@ +# mypy: allow-untyped-defs +from .cutedsl_template import CuteDSLTemplate, CuteDSLTemplateCaller + + +__all__ = [ + "CuteDSLTemplate", + "CuteDSLTemplateCaller", +] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/_cutedsl_utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/_cutedsl_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..17f850c8078c8d058bad8007e9cf14b69599003b --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/_cutedsl_utils.py @@ -0,0 +1,29 @@ +# mypy: disable-error-code=import-not-found +# pyrefly: ignore [import-error] +import cutlass.cute as cute + + +@cute.jit # type: ignore[misc] +def ssa_to_indexable(ssa_value: cute.TensorSSA, dtype: str) -> cute.Numeric: + """ + Convert SSA form to indexable non-SSA form. + + Workaround for lack of gather support: SSA values cannot be used directly + as indices in tensor loads. This converts SSA → fragment → scalar for indexing. + """ + frag = cute.make_rmem_tensor(1, dtype) + frag.store(ssa_value) + return frag[0] + + +@cute.jit # type: ignore[misc] +def result_to_ssa(value: cute.Numeric, dtype: str) -> cute.TensorSSA: + """ + Convert non-SSA result back to SSA form. + + After performing operations with non-SSA values (like indexed loads), + convert the result back to SSA form for further computation. + """ + frag = cute.make_rmem_tensor(1, dtype) + frag[0] = value + return frag.load() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/cutedsl_kernel.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/cutedsl_kernel.py new file mode 100644 index 0000000000000000000000000000000000000000..4772ee1541726ec6b016a39f8974d15e676da6c8 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/cutedsl_kernel.py @@ -0,0 +1,599 @@ +# mypy: allow-untyped-defs +import contextlib +import dataclasses +import logging +import textwrap +from collections.abc import Callable +from typing import Any, Optional + +import sympy + +import torch +from torch._inductor import config +from torch._inductor.codegen.common import ( + CSE, + CSEVariable, + IndentedBuffer, + Kernel, + ValueRanges, +) +from torch._inductor.ir import ( + BaseView, + Buffer, + ComputedBuffer, + ExternKernel, + InputBuffer, + MutableBox, + ReinterpretView, +) +from torch._inductor.ops_handler import StoreMode +from torch._inductor.utils import OrderedSet +from torch._inductor.virtualized import V + +from ...utils import sympy_index_symbol +from .cutedsl_op_overrides import CuteDSLOpOverrides + + +# TODO setting the 'main' kernel w/ this suffix. We have 3 should probably just auto generate this +MAIN_SUFFIX = "main" + + +log = logging.getLogger(__name__) +kernel_code_log = torch._logging.getArtifactLogger(__name__, "kernel_code") + + +class CuteDSLKernelWrapper: + """Wrapper to provide .run() interface for CuteDSL kernels""" + + def __init__( + self, kernel_fn: Callable[..., Any], kernel_path: Optional[str] = None + ): + self.kernel_fn = kernel_fn + self.kernel_path = kernel_path + kernel_code_log.info("CuteDSL kernel path: %s", kernel_path) + + def run(self, *args, stream=None, **kwargs): + """ + Execute the CuteDSL kernel. + + Args: + *args: Arguments to pass to the kernel function + stream: CUDA stream to pass to the kernel function + **kwargs: Additional keyword arguments for the kernel + + Returns: + Result of the kernel execution + """ + return self.kernel_fn(*args, stream=stream, **kwargs) + + +@dataclasses.dataclass +class CuteDSLSubgraphInfo: + """Minimal subgraph info for CuteDSL kernels.""" + + body: IndentedBuffer + template_mask: Optional[str] = None + template_out: Optional[str] = None + cse: Optional[CSE[Any]] = None + + def __post_init__(self): + self.only_copy_if_non_none_fields = ("cse",) + + def to_dict(self): + return { + field.name: getattr(self, field.name) for field in dataclasses.fields(self) + } + + +class CuteDSLTemplateKernel(Kernel): + """ + Template kernel implementation for CuteDSL (CUTLASS Python DSL). + Handles code generation and argument management for CuteDSL CUDA kernels. + Provides CuteDSL-specific functionality for tensor conversion and kernel configuration. + """ + + def __init__( + self, + kernel_name: str, + input_nodes: list[Buffer], + output_node: Buffer, + subgraphs: Optional[list[Buffer]] = None, + ) -> None: + # Call parent Kernel constructor + super().__init__() + self.kernel_name = kernel_name + self.input_nodes = input_nodes + self.output_node = output_node + self.subgraphs = subgraphs + self.subgraph_bodies: dict[str, CuteDSLSubgraphInfo] = {} + + # Template attributes + self.body: IndentedBuffer = IndentedBuffer() + self.template_mask: Optional[str] = None + self.template_out: Optional[str] = None + self.template_indices: Optional[list[Any]] = None + self.render_hooks: dict[str, Any] = {} + + # TODO Additional attributes needed by template system + self.prologue_fused_inputs: OrderedSet[str] = OrderedSet() + self.prologue_fused_inputs_preserve_zero: OrderedSet[str] = OrderedSet() + self.named_input_nodes: dict[str, Buffer] = {} + + # Create named input nodes mapping + for i, input_node in enumerate(input_nodes): + node_name = getattr(input_node, "name", f"input_{i}") + self.named_input_nodes[node_name] = input_node + + self.cse = CSE(name_prefix="tmp") + + # Track all tensor buffers added during modification processing + self.collected_tensor_buffers: list[str] = [] + + def kexpr(self, expr: sympy.Expr) -> str: + """Convert sympy expression to CuteDSL string representation.""" + return str(expr) + + def gen_imports(self) -> str: + """Generate common imports for CuteDSL templates.""" + imports = IndentedBuffer() + imports.splice( + """ + import torch + import cutlass + import cutlass.cute as cute + from cutlass.cute.runtime import from_dlpack + import cuda.bindings.driver as cuda + from cutlass._mlir.dialects import math as mlir_math + import operator + from torch._inductor.codegen.cutedsl._cutedsl_utils import ssa_to_indexable, result_to_ssa + """ + ) + return imports.getvalue() + + def gen_defines(self, **kwargs) -> str: + """Generate CuteDSL parameter definitions from kwargs, similar to Triton's gen_defines.""" + params = IndentedBuffer() + for name, val in kwargs.items(): + params.writeline(f"{name}: cutlass.Constexpr = {val}") + return params.getvalue() + + def render(self, template, **kwargs): + from torch._inductor.select_algorithm import PartialRender + + """Render the kernel using the template, returning PartialRender object with hooks.""" + # Available {{}} hooks for jinja rendering + template_env = { + "def_kernel": self.def_kernel, + "gen_defines": lambda: self.gen_defines(**kwargs), + "get_output": self.get_output, + "get_tensor_buffers": self.get_tensor_buffers, + "unpack_buffers": self.unpack_buffers, + "modification": self.modification, + "set_cute_hash": self.set_cute_hash, + } + + # Render the template with the environment and provided kwargs + rendered_code = template.render( + kernel_name=self.kernel_name, + input_nodes=self.input_nodes, + output_node=self.output_node, + **template_env, + **kwargs, + ) + + # Always prepend the common imports + imports = self.gen_imports() + full_code = imports + rendered_code + + return PartialRender(full_code, self.render_hooks) + + @contextlib.contextmanager + def set_subgraph_body(self, body_name: str): + """Set the active subgraph body for template processing.""" + assert all( + hasattr(self, field.name) + for field in dataclasses.fields(CuteDSLSubgraphInfo) + ) + old_state = { + key.name: getattr(self, key.name) + for key in dataclasses.fields(CuteDSLSubgraphInfo) + } + + if body_name not in self.subgraph_bodies: + self.subgraph_bodies[body_name] = CuteDSLSubgraphInfo( + body=IndentedBuffer(), + template_mask=None, + template_out=None, + cse=None, + ) + + subgraph = self.subgraph_bodies[body_name] + for key, value in subgraph.to_dict().items(): + if value is None and key in getattr( + subgraph, "only_copy_if_non_none_fields", () + ): + continue + setattr(self, key, value) + + try: + yield + finally: + # Save current state back to subgraph + self.subgraph_bodies[body_name] = CuteDSLSubgraphInfo( + **{ + key.name: getattr(self, key.name) + for key in dataclasses.fields(CuteDSLSubgraphInfo) + } + ) + # Restore old state + for key, value in old_state.items(): + setattr(self, key, value) + + @contextlib.contextmanager + def create_subgraph_body(self, body_name: str, *, clear_cse: bool = False): + """Create a new subgraph body for template processing.""" + assert body_name not in self.subgraph_bodies, ( + f"Subgraph body '{body_name}' already exists" + ) + new_cse = self.cse.clone() if clear_cse else None + self.subgraph_bodies[body_name] = CuteDSLSubgraphInfo( + body=IndentedBuffer(), + template_mask=None, + template_out=None, + cse=new_cse, + ) + with self.set_subgraph_body(body_name): + yield + + def _get_reinterpret_view(self, node) -> ReinterpretView | None: + """Extract or convert to ReinterpretView from a node, handling all views.""" + while isinstance(node, MutableBox): + node = node.data + if isinstance(node, BaseView): + return ExternKernel.convert_to_reinterpret_view(node) + return None + + def def_kernel(self, *argnames): + """Define kernel function signature for CuteDSL templates. + + When inputs are ReinterpretViews of the same underlying buffer (e.g., Q/K/V + from fused QKV projection), we generate separate arguments for each input + even though they share the same underlying buffer. + """ + renames = IndentedBuffer(initial_indent=1) + + # Track template input args - each input gets its own arg even if buffers are shared + self._template_input_args: list[tuple[str, Buffer]] = [] + self._seen_input_args: OrderedSet[str] = OrderedSet() + + for i, input_node in enumerate(self.input_nodes): + buf_name = input_node.get_name() + # Register with args system (may deduplicate, but we track separately) + self.args.input(buf_name) + + if i < len(argnames): + template_name = argnames[i] + arg_name = f"arg_{template_name}" + self.args.input_buffers[buf_name] = arg_name + renames.writeline(f"{template_name} = {arg_name}") + self._template_input_args.append((arg_name, input_node)) + self._seen_input_args.add(arg_name) + + if self.output_node: + self.args.output(self.output_node.get_name()) + + def hook(): + # Generate signature with template input args plus additional args (output, sizevars) + code = IndentedBuffer() + code.writeline(f"# Kernel function signature: {self.kernel_name}") + + # Start with template input args + params = [arg_name for arg_name, _ in self._template_input_args] + + # Get additional args from python_argdefs (output, sizevars, etc.) + arg_defs, _, _, _ = self.args.python_argdefs() + for arg_def in arg_defs: + if arg_def.full_name() not in self._seen_input_args: + params.append(arg_def.full_name()) + + params.append("stream") + code.writeline( + f"def {self.kernel_name}_{MAIN_SUFFIX}({', '.join(params)}):" + ) + with code.indent(): + code.splice(renames.getvalue()) + return code.getvalue() + + assert "" not in self.render_hooks + # Placeholder-based rendering: hook will be called when template encounters "" + self.render_hooks[""] = hook + return "" + + def get_output(self): + """Get the actual argument name for the output buffer.""" + assert self.output_node, "Output node must exist to get output buffer name" + buf_name = self.output_node.get_name() + output = self.args.output_buffers.get(buf_name, None) + if output is None: + raise ValueError(f"Output buffer '{buf_name}' not found in args") + return output + + def set_cute_hash(self, func_name: str, suffix: str = ""): + """Generate code to set __cute_hash__ on a codegen function. + + This allows hash_callable in flash_attn to skip expensive runtime hashing + for Inductor-generated functions. The hash is based on the kernel name + which already contains a unique hash suffix. + """ + hash_value = f"{self.kernel_name}_{suffix}" if suffix else self.kernel_name + return f'{func_name}.__cute_hash__ = "{hash_value}"' + + def get_tensor_buffers(self): + """Get list of tensor buffer names that were collected during modifications.""" + return self.collected_tensor_buffers + + def unpack_buffers(self, buffer_list_name: str, *, indent_width: int = 4): + """Generate buffer unpacking code via render hook.""" + + def hook(): + tensor_buffers = self.get_tensor_buffers() + if not tensor_buffers: + return "" + + # Generate unpacking assignments: in_ptr4 = buffers[0], etc. + unpacking_lines = [] + for i, buffer_name in enumerate(tensor_buffers): + # pyrefly: ignore [bad-argument-type] + unpacking_lines.append(f"{buffer_name} = {buffer_list_name}[{i}]") + + indent = " " * indent_width + return "\n" + indent + ("\n" + indent).join(unpacking_lines) + + # Register the hook and return placeholder + placeholder = "" + # TODO: I think double invoking is fine for this specific hook + # assert placeholder not in self.render_hooks + self.render_hooks[placeholder] = hook + return placeholder + + def call_kernel(self, name: str, node=None): + """Call the kernel function. Simplified version of TritonTemplateKernel.call_kernel. + + For inputs that are ReinterpretViews (e.g., Q/K/V slices from fused QKV), + we generate reinterpret_tensor() calls to properly handle the views. + """ + wrapper = V.graph.wrapper_code + + # Build call args matching the signature generated in `def_kernel` + call_args = [] + arg_types = [] + + for _, input_node in self._template_input_args: + reinterpret_view = self._get_reinterpret_view(input_node) + if reinterpret_view is not None: + call_args.append(reinterpret_view.codegen_reference()) + else: + call_args.append(input_node.get_name()) + arg_types.append(V.graph.get_dtype(input_node.get_name())) + + # Add additional args from python_argdefs (output, sizevars, ..) + orig_arg_defs, orig_call_args, _, orig_arg_types = self.args.python_argdefs() + for arg_def, call_arg, arg_type in zip( + orig_arg_defs, orig_call_args, orig_arg_types + ): + # dedupe + if arg_def.full_name() not in self._seen_input_args: + call_args.append(call_arg) + arg_types.append(arg_type) + + # TODO this karg really should not be called `triton` + wrapper.generate_kernel_call(name, call_args, triton=True, arg_types=arg_types) + + def _get_subgraph(self, subgraph_number: int): + """Get subgraph by number for modification processing.""" + assert isinstance(subgraph_number, int) + assert isinstance(self.subgraphs, list) + assert subgraph_number < len(self.subgraphs), ( + f"Invalid subgraph number provided to create_modification, {subgraph_number} must be < {len(self.subgraphs)}" + ) + assert self.body.getvalue() == "", ( + "Body should be clear before adding a modification" + ) + return self.subgraphs[subgraph_number] + + def modification( + self, + subgraph_number: int, + output_name: Optional[str], + mask: Optional[str] = None, + **fixed_inputs, + ) -> str: + """Generate CuteDSL code for a subgraph modification.""" + # Find unique name to avoid collisions between multiple modifications of same subgraph + num = 0 + while f"mod_{subgraph_number}_{num}" in self.subgraph_bodies: + num += 1 + + with self.create_subgraph_body(f"mod_{subgraph_number}_{num}", clear_cse=True): + subgraph = self._get_subgraph(subgraph_number) + modification_handler = ModificationWrapperCuteDSL( + self, subgraph_number, fixed_inputs, mask + ) + with V.set_kernel_handler(self), V.set_ops_handler(modification_handler): + assert isinstance(subgraph, (ComputedBuffer, list)), ( + f"Expected ComputedBuffer or List[ComputedBuffer], got {type(subgraph)}" + ) + + if isinstance(subgraph, list): + raise NotImplementedError( + "Scatter graphs are not supported for CuteDSL" + ) + + if isinstance(subgraph.data, InputBuffer): + # grad_score_mod can be InputBuffers + out = subgraph.data.make_loader()(()) + else: + # Inline a pointwise lowering into the template + out = subgraph.data.inner_fn(()) + + if output_name is not None: + assert out is not None, ( + f"Expected computation result for named output {output_name}" + ) + self.body.writeline(f"{output_name} = {out.value}") + else: + # Side-effect only: no output assignment (currently only for scatter operations) + raise NotImplementedError( + "Side-effect only modifications not yet supported for CuteDSL" + ) + + # Add Buffers that were added during modification + self.collected_tensor_buffers.extend(modification_handler.tensor_buffers) + + return self.body.getvalue() + + +class ModificationWrapperCuteDSL(V.WrapperHandler): # type: ignore[name-defined] + """ + Wrapper handler that enables CuteDSL code generation during subgraph modifications. + + This class sits between the PyTorch IR and CuteDSL code generation, providing: + 1. Operation substitution: converts PyTorch ops to CuteDSL equivalents via CuteDSLOpOverrides + 2. Placeholder handling: resolves fixed_inputs during template processing + 3. Limited operation support: currently restricted to pointwise operations + + """ + + def __init__( + self, + kernel, + subgraph_number: int, + fixed_inputs: dict[str, Any], + mask: Optional[str], + ): + cutedsl_ops = CuteDSLOpOverrides() + super().__init__(cutedsl_ops) + self.name = f"CuteDSLPlaceholderSubstitution_{subgraph_number}" + self.kernel = kernel + self.fixed_inputs = fixed_inputs + self.mask = mask + # Track tensor buffers that get added during modification processing + self.tensor_buffers: list[str] = [] + + def _get_input_dtype(self, name: str) -> torch.dtype: + """Get the dtype for an input from the kernel's named_input_nodes.""" + if name in self.kernel.named_input_nodes: + return self.kernel.named_input_nodes[name].dtype + # TODO: Fallback for common dimension names - should be replaced with proper dtype tracking + return torch.float32 if name not in ("b", "h", "m", "n") else torch.int32 + + def load(self, name: str, index: sympy.Expr): + """Handle loading from tensor or fixed(template args) input for CuteDSL.""" + if name not in self.fixed_inputs: + var = self._add_kernel_input(name) + buffer = V.graph.get_buffer(name) + var_dtype = buffer.dtype + + cute_dtype = CuteDSLOpOverrides.TORCH_TO_CUTE_DTYPE.get( + var_dtype, "cutlass.Float32" + ) + renamed_index = self.kernel.rename_indexing(index) + + idx_var = self._emit_scalar_fragment( + self.kernel.kexpr(renamed_index), "cutlass.Int32", torch.int32 + ) + + val_frag = self.kernel.cse.newvar(dtype=var_dtype) + self.kernel.body.writeline( + f"{val_frag} = cute.make_rmem_tensor(1, {cute_dtype})" + ) + + self.kernel.body.writeline(f"{val_frag}[0] = ({var}[{idx_var}])") + + final_expr = f"{val_frag}.load()" + + if ( + var_dtype in (torch.float16, torch.bfloat16) + and config.triton.codegen_upcast_to_fp32 + ): + final_expr = f"({final_expr}).to(cutlass.Float32)" + var_dtype = torch.float32 + + out = self.kernel.cse.generate( + self.kernel.body, + final_expr, + dtype=var_dtype, + bounds=ValueRanges.unknown(), + ) + return out + + value = self.fixed_inputs[name] + dtype = self._get_input_dtype(name) + + return self.kernel.cse.generate( + self.kernel.body, value, bounds=ValueRanges.unknown(), dtype=dtype + ) + + def _emit_scalar_fragment( + self, expr_str: str, cute_dtype: str, torch_dtype: torch.dtype + ) -> str: + """ + Convert SSA expression to indexable scalar for tensor loads. + + Workaround for lack of gather support: SSA values cannot be used directly + as indices. This generates code to convert SSA → indexable scalar. + """ + result = self.kernel.cse.newvar(dtype=torch_dtype) + self.kernel.body.writeline( + f"{result} = ssa_to_indexable({expr_str}, {cute_dtype})" + ) + return str(result) + + def indirect_indexing(self, index_var: str, size, check, wrap_neg=True): + """Convert index variable to symbolic form.""" + return sympy_index_symbol(str(index_var)) + + # pyrefly: ignore [bad-override] + def store( + self, name: str, index: sympy.Expr, value: CSEVariable, mode: StoreMode = None + ) -> str: + raise NotImplementedError( + "Store operations not supported - CuteDSL limited to read-only operations" + ) + + def _add_kernel_input(self, name: str): + """Add name as input to kernel and return input ref.""" + # Get the remapped name that will be used in the kernel + remapped_name = self.kernel.args.input(name) + # Track the remapped name for later collection + if remapped_name not in self.tensor_buffers: + self.tensor_buffers.append(remapped_name) + return remapped_name + + def _process_indexing(self, index): + """Process and rename indexing, adding symbols as kernel inputs.""" + renamed = self.kernel.rename_indexing(index) + return self.kernel.kexpr(renamed) + + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + try: + return getattr(self._inner, name)(*args, **kwargs) + except NotImplementedError as e: + bar = "=" * 80 + msg = textwrap.dedent(f""" + {bar} + UNSUPPORTED CUTEDSL OPERATION: '{name}' + {bar} + This operation is not yet implemented in Inductor. + + Please open an issue at: https://github.com/pytorch/pytorch/issues + with the following information: + + Operation: {name} + Args: {args!r} + Kwargs: {kwargs!r} + + Title your issue: [CuteDSL] Missing operation: {name} + {bar} + """).strip() + raise NotImplementedError(msg) from e diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/cutedsl_op_overrides.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/cutedsl_op_overrides.py new file mode 100644 index 0000000000000000000000000000000000000000..2d3ca75c52adcf96bd1f8e4270eff933b953c1c5 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/cutedsl_op_overrides.py @@ -0,0 +1,360 @@ +# mypy: allow-untyped-defs +""" +CuteDSL-specific operation overrides for pointwise operations. + +This module provides CuteDSL implementations of common operations used in +template kernels, particularly for flex attention modifications. +""" + +import math +from typing import Optional, Union + +import sympy + +import torch +from torch._inductor.codegen.common import CSEVariable, OpOverrides +from torch._inductor.virtualized import OpsValue, V +from torch.utils._sympy.value_ranges import ValueRanges + + +CuteDSLArg = Union[CSEVariable, str] + + +def upcast_compute_type(dtype: torch.dtype) -> torch.dtype: + """Maybe upcast [b]float16 to float32""" + if dtype in (torch.float16, torch.bfloat16): + return torch.float32 + return dtype + + +class CuteDSLOpOverrides(OpOverrides): + """ + CuteDSL-specific operation overrides that generate code using CuteDSL syntax. + + CuteDSL TensorSSA objects have built-in operator overloads (__add__, __mul__, etc.) + and math functions (cute.math.exp, cute.math.sqrt, etc.) + """ + + TORCH_TO_CUTE_DTYPE = { + torch.float16: "cutlass.Float16", + torch.bfloat16: "cutlass.BFloat16", + torch.float32: "cutlass.Float32", + torch.float64: "cutlass.Float64", + torch.int8: "cutlass.Int8", + torch.int16: "cutlass.Int16", + torch.int32: "cutlass.Int32", + torch.int64: "cutlass.Int64", + torch.bool: "cutlass.Boolean", + torch.float8_e4m3fn: "cutlass.Float8E4M3FN", + torch.float8_e5m2: "cutlass.Float8E5M2", + } + + # Math constants + LOG2_E = 1.4426950408889634 # 1/ln(2) for converting natural exp to base-2 exp + + @staticmethod + def _ensure_tensor_ssa(arg: CuteDSLArg, template_tensor: CuteDSLArg) -> str: + """ + Convert scalar arguments to TensorSSA using cute.full_like if needed. + + Args: + arg: The argument to check (CSEVariable for tensors, str for scalars, or OpsValue wrapper) + template_tensor: A tensor argument to use as template for full_like + + Returns: + String representation suitable for CuteDSL operations + """ + if isinstance(arg, CSEVariable): + return str(arg) + + if isinstance(arg, OpsValue) and isinstance(arg.value, CSEVariable): + return str(arg.value) + + if isinstance(template_tensor, CSEVariable): + return f"cute.full_like({template_tensor}, {arg})" + + return str(arg) + + @staticmethod + def _extract_dtype_and_bounds( + *args: CuteDSLArg, + ) -> tuple[Optional[torch.dtype], ValueRanges[sympy.Expr]]: + """Extract dtype and bounds from CSEVariable arguments.""" + for arg in args: + if isinstance(arg, CSEVariable): + return arg.dtype, arg.bounds + return None, ValueRanges.unknown() + + @staticmethod + def _apply_binary_op(a: CuteDSLArg, b: CuteDSLArg, op_format: str) -> CuteDSLArg: + """ + Apply a binary operation with automatic scalar-to-tensor conversion. + + CuteDSL requires both operands to be TensorSSA objects for tensor operations. + This helper automatically converts scalar arguments to TensorSSA using + cute.full_like when at least one argument is a tensor (CSEVariable). + + Args: + a: First operand (CSEVariable for tensors, str for scalars) + b: Second operand (CSEVariable for tensors, str for scalars) + op_format: Format string with {a} and {b} placeholders for the operation + + Returns: + CSEVariable if at least one operand is a CSEVariable, otherwise string + """ + tensor_arg = ( + a + if isinstance(a, CSEVariable) + else b + if isinstance(b, CSEVariable) + else None + ) + if tensor_arg is not None: + a_ssa = CuteDSLOpOverrides._ensure_tensor_ssa(a, tensor_arg) + b_ssa = CuteDSLOpOverrides._ensure_tensor_ssa(b, tensor_arg) + result_expr = op_format.format(a=a_ssa, b=b_ssa) + + dtype, bounds = CuteDSLOpOverrides._extract_dtype_and_bounds(a, b) + + # Create and return CSEVariable using CSE generation for caching + return V.kernel.cse.generate( + V.kernel.body, result_expr, bounds=bounds, dtype=dtype + ) + + return op_format.format(a=a, b=b) + + @staticmethod + def _apply_unary_op(x: CuteDSLArg, op_format: str) -> CuteDSLArg: + """ + Apply a unary operation, returning CSEVariable if input is CSEVariable. + + Args: + x: Input operand (CSEVariable for tensors, str for scalars) + op_format: Format string with {x} placeholder for the operation + + Returns: + CSEVariable if input is a CSEVariable, otherwise string + """ + if isinstance(x, CSEVariable): + result_expr = op_format.format(x=str(x)) + return V.kernel.cse.generate( + V.kernel.body, result_expr, bounds=x.bounds, dtype=x.dtype + ) + + return op_format.format(x=x) + + @staticmethod + def constant(value: Union[bool, float, int], dtype: torch.dtype) -> str: + """Generate CuteDSL constant representation.""" + if value == float("-inf"): + return "float('-inf')" + elif value == float("inf"): + return "float('inf')" + elif math.isnan(value): + return "float('nan')" + return repr(value) + + @staticmethod + def add(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(a, b, "({a} + {b})") + + @staticmethod + def mul(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(a, b, "({a} * {b})") + + @staticmethod + def sub(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(a, b, "({a} - {b})") + + @staticmethod + def truediv(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(a, b, "({a} / {b})") + + @staticmethod + def mod(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(a, b, "({a} % {b})") + + @staticmethod + def remainder(a, b): + return CuteDSLOpOverrides._apply_binary_op(a, b, "({a} % {b})") + + @staticmethod + def exp(x: CuteDSLArg) -> CuteDSLArg: + """Exponential using CuteDSL cute.math.exp function.""" + return CuteDSLOpOverrides._apply_unary_op( + x, f"cute.math.exp2({{x}} * {CuteDSLOpOverrides.LOG2_E})" + ) + + @staticmethod + def sqrt(x: CuteDSLArg) -> CuteDSLArg: + """Square root using CuteDSL cute.math.sqrt function.""" + return CuteDSLOpOverrides._apply_unary_op(x, "cute.math.sqrt({x})") + + @staticmethod + def log(x: CuteDSLArg) -> CuteDSLArg: + """Natural logarithm using CuteDSL cute.math.log function.""" + return CuteDSLOpOverrides._apply_unary_op(x, "cute.math.log({x})") + + @staticmethod + def cos(x: CuteDSLArg) -> CuteDSLArg: + """Cosine using CuteDSL cute.math.cos function.""" + return CuteDSLOpOverrides._apply_unary_op(x, "cute.math.cos({x})") + + @staticmethod + def sin(x: CuteDSLArg) -> CuteDSLArg: + """Sine using CuteDSL cute.math.sin function.""" + return CuteDSLOpOverrides._apply_unary_op(x, "cute.math.sin({x})") + + @staticmethod + def erf(x: CuteDSLArg) -> CuteDSLArg: + """Error function using CuteDSL cute.math.erf function.""" + return CuteDSLOpOverrides._apply_unary_op(x, "cute.math.erf({x})") + + @staticmethod + def maximum(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + raise NotImplementedError("TODO: maximum is not supported yet for TensorSSA") + + @staticmethod + def minimum(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + raise NotImplementedError("TODO: minimum is not supported yet for TensorSSA") + + @staticmethod + def where( + condition: CuteDSLArg, + a: CuteDSLArg, + b: CuteDSLArg, + ) -> CuteDSLArg: + """Conditional selection - handles both CSEVariable and string inputs.""" + # Find a tensor argument to use as template for full_like + # Priority: use 'a' if it's a tensor, else use 'b', else condition + tensor_arg = ( + a + if isinstance(a, CSEVariable) + else ( + b + if isinstance(b, CSEVariable) + else condition + if isinstance(condition, CSEVariable) + else None + ) + ) + + if tensor_arg is not None: + a_ssa = CuteDSLOpOverrides._ensure_tensor_ssa(a, tensor_arg) + b_ssa = CuteDSLOpOverrides._ensure_tensor_ssa(b, tensor_arg) + result_expr = f"cute.where({condition}, {a_ssa}, {b_ssa})" + + dtype, bounds = CuteDSLOpOverrides._extract_dtype_and_bounds( + a, b, condition + ) + + return V.kernel.cse.generate( + V.kernel.body, result_expr, bounds=bounds, dtype=dtype + ) + + return f"cute.where({condition}, {a}, {b})" + + @staticmethod + def pow(a: CuteDSLArg, b: CuteDSLArg): + return CuteDSLOpOverrides._apply_binary_op(a, b, "({a} ** {b})") + + @staticmethod + def abs(x: CuteDSLArg) -> CuteDSLArg: + """Absolute value using CuteDSL cute.math.abs function.""" + if isinstance(x, CSEVariable): + x_dtype = x.dtype + elif isinstance(x, OpsValue) and isinstance(x.value, CSEVariable): + x_dtype = x.value.dtype + else: + x_dtype = torch.float32 + + abs_op = ( + "mlir_math.absf" + if x_dtype in (torch.float16, torch.bfloat16, torch.float32) + else "mlir_math.absi" + ) + return CuteDSLOpOverrides._apply_unary_op( + # pyrefly: ignore [bad-argument-type] + x, + f"cute.TensorSSA({abs_op}({{x}}), {{x}}.shape, {{x}}.dtype)", + ) + + @staticmethod + def neg(x: CuteDSLArg) -> CuteDSLArg: + """Negation using CuteDSL TensorSSA __neg__ operator.""" + # TODO: See https://github.com/NVIDIA/cutlass/issues/2584 + return CuteDSLOpOverrides._apply_unary_op( + x, "cute.TensorSSA(-{x}, {x}.shape, {x}.dtype)" + ) + + @staticmethod + def to_dtype( + x: CuteDSLArg, dtype: torch.dtype, src_dtype=None, use_compute_types=True + ) -> CuteDSLArg: + """Type conversion using CuteDSL TensorSSA.to(Type[Numeric]). + + Maps torch dtypes to cutlass.cute.typing numeric types and emits + `{x}.to(cute.typing.)`. + + Raises NotImplementedError for unsigned integer and unsupported dtypes. + """ + # Always convert up from bf16 and fp16 TODO on configuring + dtype = upcast_compute_type(dtype) + + cute_type = CuteDSLOpOverrides.TORCH_TO_CUTE_DTYPE.get(dtype) + if cute_type is None: + raise NotImplementedError( + f"CuteDSL dtype cast not implemented for torch dtype: {dtype}" + ) + + if isinstance(x, CSEVariable): + result_expr = f"{str(x)}.to({cute_type})" + return V.kernel.cse.generate( + V.kernel.body, result_expr, bounds=x.bounds, dtype=dtype + ) + + return f"{x}.to({cute_type})" + + @staticmethod + def tanh(x0: CuteDSLArg) -> CuteDSLArg: + """Hyperbolic tangent using CuteDSL cute.math.tanh function.""" + return CuteDSLOpOverrides._apply_unary_op(x0, "cute.math.tanh({x})") + + # Logical operations + @staticmethod + def logical_and(x0: CuteDSLArg, x1: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(x0, x1, "({a} and {b})") + + @staticmethod + def logical_or(x0: CuteDSLArg, x1: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(x0, x1, "({a} or {b})") + + @staticmethod + def logical_not(a): + """Logical NOT.""" + return CuteDSLOpOverrides._apply_unary_op(a, "({x} == 0)") + + # Comparison operations + @staticmethod + def eq(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(a, b, "operator.eq({a}, {b})") + + @staticmethod + def ne(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(a, b, "operator.ne({a}, {b})") + + @staticmethod + def lt(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(a, b, "operator.lt({a}, {b})") + + @staticmethod + def le(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(a, b, "operator.le({a}, {b})") + + @staticmethod + def gt(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(a, b, "operator.gt({a}, {b})") + + @staticmethod + def ge(a: CuteDSLArg, b: CuteDSLArg) -> CuteDSLArg: + return CuteDSLOpOverrides._apply_binary_op(a, b, "operator.ge({a}, {b})") diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/cutedsl_scheduling.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/cutedsl_scheduling.py new file mode 100644 index 0000000000000000000000000000000000000000..4fc1089a4082acc02f4b039f2fda9c0a726648d1 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/cutedsl_scheduling.py @@ -0,0 +1,141 @@ +# mypy: allow-untyped-defs +import hashlib +import logging +from collections.abc import Sequence +from typing import cast + +from torch._inductor.utils import Placeholder +from torch.utils._ordered_set import OrderedSet + +from ... import config +from ...codecache import code_hash, get_path +from ...ir import CuteDSLTemplateBuffer +from ...scheduler import ( + BaseSchedulerNode, + BaseScheduling, + FusedSchedulerNode, + SchedulerNode, +) +from ...select_algorithm import PartialRender +from ...utils import get_fused_kernel_name, get_kernel_metadata +from ...virtualized import V +from ..common import BackendFeature, IndentedBuffer + + +log = logging.getLogger(__name__) + + +class CuteDSLScheduling(BaseScheduling): + """ + Scheduling implementation for CuteDSL (CUTLASS Python DSL) kernels. + This class is intended to be used in combination with other schedulers, + and delegated to by CUDACombinedScheduling. + """ + + @classmethod + def get_backend_features(cls, device) -> OrderedSet[BackendFeature]: + return OrderedSet() + + @staticmethod + def is_cutedsl_template(node: BaseSchedulerNode) -> bool: + """Check if a node is a CuteDSL template.""" + return isinstance(node, SchedulerNode) and isinstance( + node.node, CuteDSLTemplateBuffer + ) + + def is_cutedsl_fused_template(self, node: BaseSchedulerNode) -> bool: + """Check if a node is a fused CuteDSL template.""" + return isinstance(node, FusedSchedulerNode) and self.is_cutedsl_template(node) + + def can_fuse_vertical( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + """ + TODO CuteDSL doesn't support vertical fusion yet. + This could be extended in the future for epilogue fusion. + """ + return False + + def define_kernel(self, src_code_str: str, node_schedule) -> str: + """Produce the kernel string + Args: + src_code_str: The finalized kernel code string + node_schedule: List of nodes in the schedule + + Note: + This is a little weird since async_compile.cutedsl() has to write the string to + a file in order to cute compile it. Feels bad to have two... + """ + wrapper = V.graph.wrapper_code + + # Use the string as the key for caching + if src_code_str in wrapper.src_to_kernel: + kernel_name = wrapper.src_to_kernel[src_code_str] + else: + fused_name = ( + get_fused_kernel_name(node_schedule, config.triton.descriptive_names) + if config.triton.descriptive_names + else "" + ) + + kernel_hash = hashlib.sha256(src_code_str.encode("utf-8")).hexdigest()[:8] + if fused_name == "fused": + kernel_name = f"cutedsl_{kernel_hash}" + else: + kernel_name = f"cutedsl_{fused_name}_{kernel_hash}" + wrapper.src_to_kernel[src_code_str] = kernel_name + src_code_str = src_code_str.replace( + str(Placeholder.KERNEL_NAME), kernel_name + ) + + _, _, kernel_path = get_path(code_hash(src_code_str), "py") + + compile_wrapper = IndentedBuffer() + compile_wrapper.writeline(f"async_compile.cutedsl({kernel_name!r}, r'''") + compile_wrapper.splice(src_code_str, strip=True) + compile_wrapper.writeline("''')") + + metadata_comment = f"# kernel path: {kernel_path}" + origins, detailed_origins = get_kernel_metadata(node_schedule, wrapper) + metadata_comment += "\n" + origins + "\n" + detailed_origins + wrapper.define_kernel( + kernel_name, compile_wrapper.getvalue(), metadata_comment + ) + return kernel_name + + def codegen_template( + self, + template_node: BaseSchedulerNode, + epilogue_nodes: Sequence[BaseSchedulerNode], + prologue_nodes: Sequence[BaseSchedulerNode], + ): + """ + Codegen a CuteDSL template. Currently doesn't support fusion. + """ + assert self.is_cutedsl_template(template_node), ( + "Template node passed to CuteDSLScheduling.codegen_template must be a " + "SchedulerNode that wraps a CuteDSLTemplateBuffer" + ) + # TODO remove when supported + assert not epilogue_nodes, "CuteDSL doesn't support epilogue fusion yet" + assert not prologue_nodes, "CuteDSL doesn't support prologue fusion yet" + + template_node = cast(SchedulerNode, template_node) + ctb: CuteDSLTemplateBuffer = cast(CuteDSLTemplateBuffer, template_node.node) + + kernel, render = ctb.make_kernel_render(ctb) # type: ignore[misc] + template_node.mark_run() + src_code = render() + # Finalize PartialRender if needed + if isinstance(src_code, PartialRender): + src_code_str = src_code.finalize_all() + else: + src_code_str = src_code + + with V.set_kernel_handler(kernel): + node_schedule = [template_node] + kernel_name = self.define_kernel(src_code_str, node_schedule) + self.codegen_comment(node_schedule, kernel_name) + kernel.call_kernel(kernel_name, ctb) + V.graph.removed_buffers |= kernel.removed_buffers + self.free_buffers_in_scheduler() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/cutedsl_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/cutedsl_template.py new file mode 100644 index 0000000000000000000000000000000000000000..bf30480981378daca74cf4ab4b1e4c01e8065e79 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/cutedsl/cutedsl_template.py @@ -0,0 +1,199 @@ +# mypy: allow-untyped-defs +import functools +import itertools +from collections.abc import Iterable +from typing import Any, Optional, Union +from unittest.mock import patch + +from torch._inductor.ir import ShapeAsConstantBuffer +from torch._inductor.utils import Placeholder +from torch._inductor.virtualized import V +from torch._logging import getArtifactLogger + +from ...autotune_process import CuteDSLBenchmarkRequest, TensorMeta +from ...ir import Buffer, ChoiceCaller, CuteDSLTemplateBuffer, IRNode, Layout, TensorBox +from ..common import KernelTemplate +from .cutedsl_kernel import CuteDSLTemplateKernel + + +log = getArtifactLogger(__name__, "output_code") + + +class CuteDSLTemplate(KernelTemplate): + """Template for generating CuteDSL (CUTLASS Python DSL) kernels.""" + + kernel_type: type[Any] = CuteDSLTemplateKernel + index_counter = itertools.count() + all_templates: dict[str, "CuteDSLTemplate"] = {} + + def __init__( + self, + name: str, + source: str, + subgraph_fn: Optional[Any] = None, + mask_fn: Optional[Any] = None, + ) -> None: + super().__init__(name) + self.source = source + self.subgraph_fn = subgraph_fn + self.mask_fn = mask_fn + self.template = CuteDSLTemplate._template_from_string(source) + assert name not in self.all_templates, f"duplicate template name, {name}" + CuteDSLTemplate.all_templates[name] = self + + @staticmethod + @functools.lru_cache(None) + # pyrefly: ignore [bad-override] + def _template_from_string(source: str) -> Any: + return KernelTemplate._template_from_string(source) + + def maybe_append_choice( + self, choices: list[Any], **kwargs: Any + ) -> Optional[NotImplementedError]: + """ + Maybe generates a new ChoiceCaller and appends it into existing choices. + Returns None if success, otherwise returns the error. + """ + try: + choices.append(self.generate(**kwargs)) + return None + except NotImplementedError as e: + log.debug("CuteDSL template choice generation failed: %s", e) # noqa: G200 + return e + except Exception as e: + log.debug("CuteDSL template choice generation error: %s", e) # noqa: G200 + return NotImplementedError(f"CuteDSL template failed: {e}") + + def generate(self, **kwargs: Any) -> ChoiceCaller: + """Generate the CuteDSL kernel caller.""" + input_nodes = kwargs.pop("input_nodes") + layout = kwargs.pop("layout") + mutated_inputs = kwargs.pop("mutated_inputs", None) + subgraphs = kwargs.pop("subgraphs", None) + + kernel_name = f"cutedsl_{self.name}_{next(self.index_counter)}" + + if self.template is None: + raise RuntimeError("Template compilation failed (Jinja2 required)") + + self.output_node: Buffer = Buffer(name="buf_out", layout=layout) + # Patch V.graph.get_dtype to handle the fake buf_out buffer + with patch.object( + V.graph, "get_dtype", KernelTemplate._fake_get_dtype(self.output_node) + ): + kernel = self.kernel_type( + kernel_name=kernel_name, + input_nodes=input_nodes, + output_node=self.output_node, + subgraphs=subgraphs, + ) + code = kernel.render(self.template, **kwargs) + + log.debug("Generated CuteDSL Code:\n%s", code) + + bmreq = CuteDSLBenchmarkRequest( + kernel_name=kernel_name, + input_tensor_meta=TensorMeta.from_irnodes(input_nodes), + output_tensor_meta=TensorMeta.from_irnodes(self.output_node), + extra_args=tuple(), + source_code=code, + ) + + def make_kernel_render(out_node, hint_override: Optional[int] = None): + """ + Factory function that creates a kernel renderer for the final output. + + This closure captures the current template and parameters, but allows + the output node to be specified later. This is used during the final + kernel selection phase when the actual output buffer is available. + """ + render_kernel = self.kernel_type( + kernel_name=str(Placeholder.KERNEL_NAME), + input_nodes=input_nodes, + output_node=out_node, + subgraphs=subgraphs, + ) + + def render(): + return render_kernel.render(self.template, **kwargs) + + return render_kernel, render + + return CuteDSLTemplateCaller( + name=kernel_name, + input_nodes=input_nodes, + layout=layout, + make_kernel_render=make_kernel_render, + bmreq=bmreq, + template=self, + mutated_inputs=mutated_inputs, + ) + + +class CuteDSLTemplateCaller(ChoiceCaller): + """Caller for CuteDSL templates that integrates with the autotuning system.""" + + def __init__( + self, + name: str, + input_nodes: list[Buffer], + layout: Layout, + make_kernel_render: Any, + bmreq: CuteDSLBenchmarkRequest, + template: "CuteDSLTemplate", + mutated_inputs: Optional[Iterable[IRNode]] = None, + ): + super().__init__( + name=name, + input_nodes=input_nodes, + layout=layout, + description=f"CuteDSL template {name}", + ) + self.make_kernel_render = make_kernel_render + self.bmreq = bmreq + self.template = template + self.mutated_inputs = mutated_inputs + + def __str__(self) -> str: + return f"CuteDSLTemplateCaller({self.name})" + + def benchmark(self, *args, out) -> float: + """Benchmark the kernel execution.""" + return self.bmreq.benchmark(*args, out=out) + + def output_node(self) -> Union[TensorBox, ShapeAsConstantBuffer]: + """Create the output node for this template choice.""" + return TensorBox.create( + CuteDSLTemplateBuffer( + layout=self.layout, + inputs=self.input_nodes, + make_kernel_render=self.make_kernel_render, + template=self.template, + mutated_inputs=self.mutated_inputs, + ) + ) + + def call_name(self) -> str: + """Return the kernel call name.""" + return self.name + + def to_callable(self) -> Any: + """Return callable that can execute this kernel.""" + return self.make_kernel_render + + def hash_key(self) -> str: + """Return unique hash key for this choice.""" + return "-".join( + [ + self.name.rsplit("_", 1)[0], + self.bmreq.module_cache_key, + ] + ) + + def info_dict(self) -> dict[str, Any]: + """Return information about this kernel.""" + return { + "name": self.name, + "backend": "CuteDSL", + "template": self.template.name, + } diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/debug_utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/debug_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..9b465e3d1ffab27bf67fca9a54e8eb6da6f9843d --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/debug_utils.py @@ -0,0 +1,290 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import functools +import logging +import os +from enum import Enum +from typing import Optional, TYPE_CHECKING + +import torch +from torch import dtype as torch_dtype + +from .. import config +from ..virtualized import V +from .multi_kernel import MultiKernel + + +if TYPE_CHECKING: + from collections.abc import Callable + + +log = logging.getLogger(__name__) + + +def _print_debugging_tensor_value_info(msg, arg): + # helper for printing debugging stats for intermediate tensor values + # at jit inductor level codegen + max_numel_to_print = 64 + print(msg) + if not isinstance(arg, torch.Tensor): + print("Value: ", arg) + return + numel = arg.float().numel() + # print the debug printing stats + if numel <= max_numel_to_print: + print(arg) + print("Number of elements: ", numel) + print("Size: ", arg.float().size()) + print("Dtype: ", arg.float().mean().item()) + print("Mean: ", arg.float().mean().item()) + print("Min: ", arg.float().min().item()) + print("Max: ", arg.float().max().item()) + print("Std: ", arg.float().std().item()) + + +# AOTI debug printing related configs +class IntermediateValueDebuggingLevel(Enum): + # OFF: No intermediate tensor value debug info will be printed or saved. + OFF = "0" + # LEVEL 1: Save all intermediate tensor values to individual `.pt` files. No debug printing will be displayed. + SAVE_ONLY = "1" + # LEVEL 2: Print all intermediate tensor values by default to the console. No debug saving will be performed. + PRINT_ONLY = "2" + # LEVEL 3: Print all kernel names to the console only. No debug saving/printing for input tensor value info will be performed. + # This mode can be helpful in cases when you just want to pinpointing what kernel is running into a CUDA IMA issue, etc. + PRINT_KERNEL_NAMES_ONLY = "3" + + +class DebugPrinterManager: + def __init__( + self, + debug_printer_level, + use_array_ref: bool, + writeline: Optional[Callable[..., None]] = None, + args_to_print_or_save: Optional[list[str]] = None, + kernel_name: str = "", + kernel=None, + arg_signatures: Optional[list[type]] = None, + kernel_type=None, + ): + self.debug_printer_level = IntermediateValueDebuggingLevel(debug_printer_level) + self.use_array_ref = use_array_ref + if args_to_print_or_save is None: + args_to_print_or_save = [] + self.args_to_print_or_save = args_to_print_or_save + self.kernel_name = kernel_name + self.arg_signatures: Optional[list[type]] = None + self.kernel = kernel + self.filtered_kernel_names_to_print = self._get_debug_filtered_kernel_names() + self.kernel_type = None + + def __enter__(self): + self._perform_debug_print_or_save_helper( + self.args_to_print_or_save, + self.kernel_name, + before_launch=True, + arg_signatures=self.arg_signatures, + ) + + def __exit__(self, args_to_print_or_save, kernel_name, arg_signatures): + self._perform_debug_print_or_save_helper( + args_to_print_or_save, + kernel_name, + before_launch=False, + arg_signatures=arg_signatures, + ) + + def _perform_debug_print_or_save_helper( + self, + args_to_print_or_save, + kernel_name, + before_launch, + arg_signatures: Optional[list[type]] = None, + ): + if self.debug_printer_level == IntermediateValueDebuggingLevel.OFF: + return + if self.debug_printer_level == IntermediateValueDebuggingLevel.SAVE_ONLY: + # by default save all the tensor values before launch + self.codegen_intermediate_tensor_value_save( + self.args_to_print_or_save, + self.kernel_name, + before_launch, + arg_signatures=self.arg_signatures, + ) + if self.debug_printer_level == IntermediateValueDebuggingLevel.PRINT_ONLY: + # by default print all the tensor values before launch + self.codegen_intermediate_tensor_value_print( + self.args_to_print_or_save, + self.kernel_name, + before_launch, + arg_signatures=self.arg_signatures, + ) + if ( + self.debug_printer_level + == IntermediateValueDebuggingLevel.PRINT_KERNEL_NAMES_ONLY + ): + # Print all kernel names to the console only + self.codegen_intermediate_tensor_value_print( + [], + self.kernel_name, + before_launch, + ) + + @functools.lru_cache # noqa: B019 + def _get_debug_filtered_kernel_names(self) -> list[str]: + if config.aot_inductor.filtered_kernel_names is None: + return [] + return [ + x.strip() + for x in config.aot_inductor.filtered_kernel_names.lower().split(",") + ] + + def set_printer_args( + self, + args_to_print_or_save: list[str], + kernel_name: str, + arg_signatures: Optional[list[type]], + kernel, + kernel_type=None, + ): + # Note: MultiKernel debug printing is not supported for now + if isinstance(kernel, MultiKernel): + log.info( + "MultiKernel type is not supported in AOTI debug printer tool yet." + ) + self.debug_printer_level = IntermediateValueDebuggingLevel.OFF + + self.kernel_type = kernel_type + # Note: if the kernel type is an extern kernel (or cpp kernel), we do a special handling to + # get the list of args_to_print_or_save + # TODO: Find a more reliable way to detect kernel args types to print for extern kernel calls + if kernel_type == "extern": + args_to_print_or_save_extern = [ + arg + for arg in args_to_print_or_save + if isinstance(arg, str) and arg.startswith(("buf", "arg")) + ] + self.args_to_print_or_save = args_to_print_or_save_extern + elif kernel_type == "cpp": + self.args_to_print_or_save = [ + ( + f"copy_arrayref_tensor_to_tensor({arg})" + if self.use_array_ref + else arg + ) + for arg in args_to_print_or_save + if isinstance(arg, str) and arg.startswith(("buf", "arg")) + ] + else: + self.args_to_print_or_save = args_to_print_or_save + self.kernel_name = kernel_name + self.arg_signatures = arg_signatures + self.kernel = kernel + + def codegen_model_inputs_value_print(self, input_args_to_print: list[str]) -> None: + if self.debug_printer_level != IntermediateValueDebuggingLevel.PRINT_ONLY: + return + for arg in input_args_to_print: + if V.graph.cpp_wrapper: + V.graph.wrapper_code.prefix.writeline( + f'aoti_torch_print_tensor_handle({arg}, "aoti_model_inputs - {arg}");' + ) + + def codegen_intermediate_tensor_value_save( + self, + args_to_save, + kernel_name, + before_launch=True, + arg_signatures: Optional[list[type]] = None, + ) -> None: + for i, arg in enumerate(args_to_save): + if arg_signatures is not None and not isinstance( + arg_signatures[i], torch_dtype + ): + # infer from the arg data type (has torch.dtype) to see if it is a tensor type + continue + launch_prefix = "before_launch" if before_launch else "after_launch" + if V.graph.cpp_wrapper: + V.graph.wrapper_code.writeline( + f'aoti_torch_save_tensor_handle({arg}, "{arg}", "{launch_prefix}", "{kernel_name}");' + ) + else: + cwd = os.getcwd() + saved_dir = cwd + "/tmp/jit_inductor/" + if not os.path.exists(saved_dir): + log.info( + "Creating directory to save inductor intermediate tensor values." + ) + os.makedirs(saved_dir) + # Save the model to the directory + saved_path = saved_dir + f"{launch_prefix}_{kernel_name}_{arg}.pt" + log.info( + "Saved intermediate tensor %s for %s to %s", + arg, + kernel_name, + saved_path, + ) + line = f"torch.save({arg}, '{saved_path}')" + V.graph.wrapper_code.writeline(line) + + def codegen_intermediate_tensor_value_print( + self, + args_to_print, + kernel_name, + before_launch=True, + arg_signatures: Optional[list[type]] = None, + ) -> None: + launch_prefix = "before_launch" if before_launch else "after_launch" + + # if the debug printing level is PRINT_KERNEL_NAMES_ONLY + # we only print the kernel name to the console + if ( + self.debug_printer_level + == IntermediateValueDebuggingLevel.PRINT_KERNEL_NAMES_ONLY + ): + if V.graph.cpp_wrapper: + V.graph.wrapper_code.writeline( + f'printf("[ {launch_prefix}: {kernel_name} ]\\n");' + ) + return + + if self.debug_printer_level != IntermediateValueDebuggingLevel.PRINT_ONLY: + return + for i, arg in enumerate(args_to_print): + # when debug printing is enabled i.e. IntermediateValueDebuggingLevel.PRINT_ONLY, + # check if filtered kernel name list is provided + if ( + len(self.filtered_kernel_names_to_print) > 0 + and kernel_name.lower() not in self.filtered_kernel_names_to_print + ): + continue + if V.graph.cpp_wrapper: + if arg_signatures is not None and isinstance( + arg_signatures[i], torch_dtype + ): + # infer from the arg data type (has torch.dtype) to see if it is a tensor type + V.graph.wrapper_code.writeline( + f'aoti_torch_print_tensor_handle({arg}, "{launch_prefix} - {kernel_name} - {arg}");' + ) + elif arg_signatures is not None and isinstance( + arg_signatures[i], + ( + type(torch._inductor.codegen.wrapper.SymbolicCallArg), + type(int), + type(float), + type(bool), + ), + ): + V.graph.wrapper_code.writeline( + f'printf("[ {launch_prefix} - {kernel_name} - {arg}: %ld ]", {arg}); printf("\\\\n");' + ) + else: + if arg_signatures is None and self.kernel_type in ("cpp", "extern"): + V.graph.wrapper_code.writeline( + f'aoti_torch_print_tensor_handle({arg}, "{launch_prefix} - {kernel_name} - {arg}");' + ) + else: + V.graph.wrapper_code.writeline( + f'_print_debugging_tensor_value_info("inductor: {launch_prefix} - {kernel_name} - {arg}", {arg})' + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/halide.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/halide.py new file mode 100644 index 0000000000000000000000000000000000000000..e47e8e6d7841d4b70b7b41f2298bcd083fe2b8ec --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/halide.py @@ -0,0 +1,1732 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import dataclasses +import functools +import itertools +import logging +import re +from collections import defaultdict +from math import inf +from typing import Any, cast, Optional, TYPE_CHECKING, Union + +import sympy + +import torch +import torch._logging + +from ..._prims_common import is_integer_dtype +from ...utils._ordered_set import OrderedSet +from ...utils._sympy.functions import FloorDiv, ModularIndexing +from ...utils._sympy.symbol import symbol_is_type, SymT +from ...utils._sympy.value_ranges import ValueRanges +from .. import config, ir +from ..codecache import HalideCodeCache +from ..ir import get_reduction_combine_fn +from ..metrics import is_metric_table_enabled, log_kernel_metadata +from ..ops_handler import AddParenHandler +from ..runtime.hints import HalideInputSpec, HalideMeta +from ..utils import ( + get_bounds_index_expr, + get_kernel_metadata, + parallel_num_threads, + sympy_index_symbol, + sympy_subs, +) +from ..virtualized import _ops as ops, V +from .common import ( + BackendFeature, + CSEVariable, + DeferredLine, + IndentedBuffer, + KernelArgType, + OpOverrides, + PythonPrinter, + SizeArg, + TensorArg, +) +from .cpp import DTYPE_TO_CPP +from .cpp_utils import cexpr +from .simd import constant_repr, SIMDKernel, SIMDScheduling + + +if TYPE_CHECKING: + from collections.abc import Callable, Sequence + + from ..ops_handler import ReductionType, StoreMode + from ..shape_propagation import BlockShapeType + +log = logging.getLogger(__name__) + + +def halide_constant(val): + if isinstance(val, int) and not (-2147483648 <= val <= 2147483647): + info = torch.iinfo(torch.int64) + if val == info.min: + return "hl.Int(64).min()" + if val == info.max: + return "hl.Int(64).max()" + return f"hl.i64({val!r})" + if isinstance(val, float): + return f"hl.f64({constant_repr(val)})" + return repr(val) + + +class Unsupported(RuntimeError): + def __init__(self, thing) -> None: + super().__init__(f"halide backend does not support: {thing}") + + +class HalidePrinter(PythonPrinter): + @staticmethod + def cast_index(expr): + return f"hl.cast({V.kernel.index_dtype}, {expr})" + + @staticmethod + def cast_float(expr): + return f"hl.cast(hl.Float(32), {expr})" + + def _print_Float(self, expr): + return f"hl.f32({expr})" + + def _print_ToFloat(self, expr): + assert len(expr.args) == 1 + return f"hl.f32({self._print(expr.args[0])})" + + def _print_floor(self, expr): + assert len(expr.args) == 1 + return self.cast_index(f"hl.floor({self._print(expr.args[0])})") + + _print_FloorToInt = _print_floor + + def _print_Trunc(self, expr): + assert len(expr.args) == 1 + return self.cast_index(f"hl.trunc({self._print(expr.args[0])})") + + _print_TruncToInt = _print_Trunc + + def _print_ceiling(self, expr): + assert len(expr.args) == 1 + return self.cast_index(f"hl.ceil({self._print(expr.args[0])})") + + def _helper_sqrt(self, expr): + return f"hl.sqrt({self.cast_float(self._print(expr))})" + + def _print_Where(self, expr): + c = self.doprint(expr.args[0]) + p = self.doprint(expr.args[1]) + q = self.doprint(expr.args[2]) + return f"hl.select({c}, {p}, {q})" + + def _print_Min(self, expr): + if len(expr.args) == 1: + return self._print(expr.args[0]) + + mid = len(expr.args) // 2 + a = self._print(sympy.Min(*expr.args[:mid])) + b = self._print(sympy.Min(*expr.args[mid:])) + return f"hl.min({a}, {b})" + + def _print_Max(self, expr): + if len(expr.args) == 1: + return self._print(expr.args[0]) + + mid = len(expr.args) // 2 + a = self._print(sympy.Max(*expr.args[:mid])) + b = self._print(sympy.Max(*expr.args[mid:])) + + return f"hl.max({a}, {b})" + + def _print_Abs(self, expr): + assert len(expr.args) == 1 + return self.cast_index(f"hl.abs({self._print(expr.args[0])})") + + def _print_OpaqueUnaryFn_cos(self, expr): + assert len(expr.args) == 1 + return f"hl.cos({self._print(expr.args[0])})" + + def _print_OpaqueUnaryFn_cosh(self, expr): + assert len(expr.args) == 1 + return f"hl.cosh({self._print(expr.args[0])})" + + def _print_OpaqueUnaryFn_acos(self, expr): + assert len(expr.args) == 1 + return f"hl.acos({self._print(expr.args[0])})" + + def _print_OpaqueUnaryFn_sin(self, expr): + assert len(expr.args) == 1 + return f"hl.sin({self._print(expr.args[0])})" + + def _print_OpaqueUnaryFn_sinh(self, expr): + assert len(expr.args) == 1 + return f"hl.sinh({self._print(expr.args[0])})" + + def _print_OpaqueUnaryFn_asin(self, expr): + assert len(expr.args) == 1 + return f"hl.asin({self._print(expr.args[0])})" + + def _print_OpaqueUnaryFn_tan(self, expr): + assert len(expr.args) == 1 + return f"hl.tan({self._print(expr.args[0])})" + + def _print_OpaqueUnaryFn_tanh(self, expr): + assert len(expr.args) == 1 + return f"hl.tanh({self._print(expr.args[0])})" + + def _print_OpaqueUnaryFn_atan(self, expr): + assert len(expr.args) == 1 + return f"hl.atan({self._print(expr.args[0])})" + + def _print_OpaqueUnaryFn_log2(self, expr): + raise NotImplementedError("log2") + + def _print_FloorDiv(self, expr): + if expr.is_integer: + return super()._print_FloorDiv(expr) + + x, div = expr.args + x = self.cast_float(self.doprint(x)) + div = self.cast_float(self.doprint(div)) + return self.cast_index(f"hl.floor({x} / {div})") + + def _print_Round(self, expr): + assert len(expr.args) == 1 + return self.cast_index(f"hl.round({self._print(expr.args[0])})") + + _print_RoundToInt = _print_Round + + def _print_IntTrueDiv(self, expr): + a, b = expr.args + # force a cast to float + return f"({a}) / ({b}+hl.f32(0))" + + def _print_RoundDecimal(self, expr): + val, n = expr.args + val = self._print(val) + n = int(n) + return f"hl.f32({10.0 ** (-n)!r})*hl.round(({val})*hl.f32({10.0**n!r}))" + + +texpr = HalidePrinter().doprint +pexpr = PythonPrinter().doprint + + +_halide_type = { + torch.bool: "hl.Bool()", + torch.bfloat16: "hl.BFloat(16)", + torch.float16: "hl.Float(16)", + torch.float32: "hl.Float(32)", + torch.float64: "hl.Float(64)", + torch.int8: "hl.Int(8)", + torch.int16: "hl.Int(16)", + torch.int32: "hl.Int(32)", + torch.int64: "hl.Int(64)", + torch.uint8: "hl.UInt(8)", + torch.uint16: "hl.UInt(16)", + torch.uint32: "hl.UInt(32)", + torch.uint64: "hl.UInt(64)", +} + + +def halide_type(dtype): + return _halide_type[dtype] + + +def halide_acc_type(dtype): + if is_integer_dtype(dtype) and dtype.is_signed and dtype != torch.int64: + dtype = torch.int32 + if dtype in (torch.float16, torch.bfloat16): + dtype = torch.float32 + return halide_type(dtype) + + +class HalideOverrides(OpOverrides): + @staticmethod + def to_dtype( + x, + dtype: torch.dtype, + src_dtype: Optional[torch.dtype] = None, + use_compute_types=True, + ): + if dtype == torch.bool: + return f"({x} != 0)" + return f"hl.cast({halide_type(dtype)}, {x})" + + @staticmethod + def to_dtype_bitcast(x, dtype: torch.dtype, src_dtype: torch.dtype): + if src_dtype in (torch.float16, torch.bfloat16): + x = f"hl.cast({halide_type(src_dtype)}, {x})" # body compute is upcast to fp32 + line = f"hl.reinterpret({halide_type(dtype)}, {x})" + if dtype in (torch.float16, torch.bfloat16): + line = f"hl.cast(hl.Float(32), {line})" + return line + + @classmethod + def constant(cls, value, dtype): + return cls.to_dtype(halide_constant(value), dtype) + + @staticmethod + def abs(x): + return f"hl.abs({x})" + + @staticmethod + def exp(x): + if not hasattr(x, "name"): + return f"hl.exp({x})" + return f"hl.fast_exp(hl.cast(hl.Float(32), {x})) if {x.name}.type().bits() <= 32 else hl.exp({x})" + + @staticmethod + def sqrt(x): + return f"hl.sqrt({x})" + + @staticmethod + def minimum(a, b): + # return f"hl.min({a}, {b})" <== handles nan wrong + if not hasattr(a, "name"): + return f"hl.min({a}, {b})" + b = f"hl.cast({a.name}.type(), {b})" + return f"hl.select(({a}<{b})|hl.is_nan({a}), {a}, {b}) if {a.name}.type().is_float() else hl.min({a}, {b})" + + @staticmethod + def maximum(a, b): + # return f"hl.max({a}, {b})" <== handles nan wrong + if not hasattr(a, "name"): + return f"hl.max({a}, {b})" + b = f"hl.cast({a.name}.type(), {b})" + return f"hl.select(({a}>{b})|hl.is_nan({a}), {a}, {b}) if {a.name}.type().is_float() else hl.max({a}, {b})" + + @staticmethod + def where(a, b, c): + if hasattr(b, "name"): + c = f"hl.cast({b.name}.type(), {c})" + return f"hl.select({a}, {b}, {c})" + + @staticmethod + def cos(x): + return f"hl.cos({x})" + + @staticmethod + def sin(x): + return f"hl.sin({x})" + + @staticmethod + def lgamma(x): + raise Unsupported("lgamma") + + @staticmethod + def erf(x): + return f"hl.erf({x})" + + @staticmethod + def cosh(x): + return f"hl.cosh({x})" + + @staticmethod + def sinh(x): + return f"hl.sinh({x})" + + @staticmethod + def acos(x): + return f"hl.acos({x})" + + @staticmethod + def acosh(x): + return f"hl.acosh({x})" + + @staticmethod + def asin(x): + return f"hl.asin({x})" + + @staticmethod + def asinh(x): + return f"hl.asinh({x})" + + @staticmethod + def atan2(x, y): + return f"hl.atan2({x}, {y})" + + @staticmethod + def atan(x): + return f"hl.atan({x})" + + @staticmethod + def atanh(x): + return f"hl.atanh({x})" + + @staticmethod + def copysign(x, y): + raise Unsupported("copysign") + + @staticmethod + def erfinv(x): + raise Unsupported("erfinv") + + @staticmethod + def hypot(x, y): + return f"hl.hypot({x}, {y})" + + @staticmethod + def nextafter(x, y): + raise Unsupported("nextafter") + + @staticmethod + def logical_and(a, b): + return f"{a} & {b}" + + @staticmethod + def logical_not(a): + return f"{a} == 0" + + @staticmethod + def logical_or(a, b): + return f"{a} | {b}" + + @staticmethod + def logical_xor(a, b): + return f"({a} ^ {b})" + + @staticmethod + def bitwise_and(a, b): + return f"{a} & {b}" + + @staticmethod + def bitwise_not(a): + return f"~{a}" + + @staticmethod + def bitwise_or(a, b): + return f"{a} | {b}" + + @staticmethod + def bitwise_xor(a, b): + return f"{a} ^ {b}" + + @staticmethod + def bitwise_left_shift(a, b): + return f"{a} << {b}" + + @staticmethod + def bitwise_right_shift(a, b): + return f"{a} >> {b}" + + @staticmethod + def rand(seed, offset): + return f"halide_helpers.rand({seed}, {offset})" + + @staticmethod + def randn(seed, offset): + return f"halide_helpers.randn({seed}, {offset})" + + @staticmethod + def randint64(seed, offset, low, high): + return f"halide_helpers.randint64({seed}, {offset}, {low}, {high})" + + @staticmethod + def load_seed(name, offset): + return f"{ops.load(name, 0)} + {V.kernel.args.seed_offset('load_seed_offset', offset)}" + + @staticmethod + def rsqrt(x): + # return f"hl.fast_inverse_sqrt({x})" <== accuracy issues + return f"1./hl.sqrt({x})" + + @staticmethod + def tan(x): + return f"hl.tan({x})" + + @staticmethod + def tanh(x): + return f"hl.tanh({x})" + + @staticmethod + def signbit(x): + return f"(hl.reinterpret(hl.UInt(32), hl.cast(hl.Float(32), {x})) >> 31) != 0" + + @staticmethod + def fmod(a, b): + # TODO(jansel): find a better way to do this, builtin % has wrong sign + return f"{a} - hl.trunc({a}/{b})*{b}" + + @staticmethod + def pow(a, b): + return f"hl.pow({a}, {b})" # hl.fast_pow fails accuracy + + @staticmethod + def log(x): + return f"hl.log({x})" # hl.fast_log fails accuracy + + @staticmethod + def log2(x): + raise NotImplementedError("log2") + + @staticmethod + def isinf(x): + # workaround https://github.com/halide/Halide/issues/8309 + return f"hl.is_inf(hl.cast(hl.Float(32), {x}))" + + @staticmethod + def isnan(x): + # workaround https://github.com/halide/Halide/issues/8309 + return f"hl.is_nan(hl.cast(hl.Float(32), {x}))" + + @staticmethod + def round(x): + return f"hl.round({x})" + + @staticmethod + def floor(x): + return f"hl.floor({x})" + + @staticmethod + def int_truediv(a, b): + return f"({a}) / ({b} + hl.f32(0))" + + @staticmethod + def floordiv(a, b): + # TODO(jansel): find a better ways to do this, the select-based trick from triton.py didn't work + return ( + f"hl.floor(hl.cast(hl.Float(max(32, {a.name}.type().bits())), {a}) / {b})" + ) + + @classmethod + def sign(cls, x): + left = ops.to_dtype(ops.lt("0", x), torch.int8) + right = ops.to_dtype(ops.lt(x, "0"), torch.int8) + sub = ops.sub(left, right) + return f"hl.cast({x.name}.type(), {sub})" + + @staticmethod + def trunc(x): + return f"hl.trunc({x})" + + @staticmethod + def truncdiv(a, b): + # this causes crashes with floating point exception, see test_div_zero_dim_cpu + # return f"hl.div_round_to_zero({a}, {b})" + return ( + f"hl.trunc(hl.cast(hl.Float(max(32, {a.name}.type().bits())), {a}) / {b})" + ) + + @staticmethod + def ceil(x): + return f"hl.ceil({x})" + + @staticmethod + def relu(x): + return f"hl.max({x}, 0)" + + @classmethod + def index_expr(cls, expr, dtype): + index = V.kernel.prepare_indexing(expr) + var = V.kernel.genfunc( + V.kernel.index_to_str(index), + V.kernel.used_dims_from_index(index), + bounds=get_bounds_index_expr(expr), + ) + if dtype not in (torch.int32, torch.int64): + return ops.to_dtype(var, dtype) + return var + + @classmethod + def indirect_indexing(cls, index_var, size, check=True, wrap_neg=True): + # TODO(jansel): Halide only supports 32-bit indexing, we should error on overflow + index_var = ops.to_dtype(index_var, torch.int32) + index_var = ops.halide_clamp(index_var, size, check) + index_var.indirect_indexing_size = size + return sympy_index_symbol(str(index_var)) + + @classmethod + def halide_clamp(cls, value, size, check): + end = V.kernel.kexpr(V.kernel.rename_indexing(size) - 1) + if not isinstance(size, (int, sympy.Integer)): + end = f"hl.cast({value.name}.type(), {end})" + # Skip unsafe_promise_clamped to workaround: https://github.com/halide/Halide/issues/8261#issuecomment-2148835692 + # return f"hl.unsafe_promise_clamped({value}, 0, {end})" + return f"hl.clamp({value}, 0, {end})" + + @staticmethod + def masked(mask, body, other): + with V.kernel.mask_loads(mask, other) as new_mask: + result = body() + + if result.bounds.is_bool: + other = bool(other) + + # Take dtype from result to prevent accidental promotion + other = V.kernel.genfunc( + f"hl.cast({result.name}.type(), {halide_constant(other)})", + [], + bounds=ValueRanges.wrap(other), + shape=result.shape, + ) + # TODO(jansel): look into removing the where in the same places triton does + return ops.where(new_mask, result, other) + + @staticmethod + def frexp(x): + raise NotImplementedError("frexp") + + @staticmethod + def device_assert_async(cond, msg): + raise NotImplementedError("device_assert_async") + + @staticmethod + # pyrefly: ignore [bad-override] + def partial_accumulate( + name: str, + reduction_type: str, + value: CSEVariable, + extra_meta: dict[str, Any], + ) -> None: + raise NotImplementedError + + +HalideOverrides._initialize_pointwise_overrides("halide") + + +class HalideCSEVariable(CSEVariable): + undefined_re = re.compile(r"\b(tmp\d+)\[\?\]") + + def __init__( + self, + name, + bounds: ValueRanges[Any], + dtype: Optional[torch.dtype] = None, + shape: BlockShapeType = None, + ) -> None: + super().__init__(name, bounds, dtype, shape=shape) + self.used_dims: Optional[list[sympy.Symbol]] = None + + def update_on_args(self, name, args, kwargs): + used = OrderedSet(self.used_dims or ()) + for arg in itertools.chain(args, kwargs.values()): + if isinstance(arg, HalideCSEVariable): + assert arg.used_dims is not None, (name, arg, args) + used.update(arg.used_dims) + self.used_dims = V.kernel.sort_used_dims(used) + + def index_str(self, dims): + if len(dims) == 0: + return f"{self.name}[()]" + # Reversed since Halide is column major + return f"{self.name}[{', '.join(map(str, dims))}]" + + def __str__(self) -> str: + if self.used_dims is None: + # This will get recomputed and replaced in codegen_kernel() + return f"{self.name}[?]" + return self.index_str(self.used_dims) + + def subs_str(self, replacements): + assert self.used_dims is not None and all( + isinstance(x, sympy.Expr) for x in self.used_dims + ) + return self.index_str([replacements.get(n, n) for n in self.used_dims]) + + +@dataclasses.dataclass +class DimensionInfo: + expr: Optional[sympy.Expr] + size: sympy.Expr + stride: sympy.Expr + + def __init__(self, expr, size, stride) -> None: + super().__init__() + if V.graph.sizevars.statically_known_lt(stride, 0): + stride = -stride + expr = -expr + self.expr = expr + self.size = size + self.stride = stride + + def index_str(self, replacements=None, zero_vars=False): + assert self.expr is not None + expr = self.expr + if zero_vars and expr == 0: + return "hl.Var()" + if replacements: + replacements = {**replacements} + # pyrefly: ignore [missing-attribute] + for sym in expr.free_symbols: + if symbol_is_type(sym, SymT.TMP): + assert isinstance(sym, sympy.Symbol) + var = V.kernel.lookup_cse_var(sym.name) + assert isinstance(var, HalideCSEVariable) + replacements[sym] = sympy_index_symbol(var.subs_str(replacements)) + expr = sympy_subs(expr, replacements) + return V.kernel.index_to_str(expr) + + +def eq(left, right): + if V.graph.sizevars.statically_known_equals(left, right): + return True + try: + a = V.graph.sizevars.size_hint_or_throw(left) + b = V.graph.sizevars.size_hint_or_throw(right) + except TypeError: # unbacked symints + return False + if a == b: + V.graph.sizevars.check_equals(left, right) + return a == b + + +def lt(left, right): + if V.graph.sizevars.statically_known_lt(left, right): + return True + try: + a = V.graph.sizevars.size_hint_or_throw(left) + b = V.graph.sizevars.size_hint_or_throw(right) + except TypeError: # unbacked symints + gcd = sympy.gcd(left, right) + if gcd == left: + return left != right + return False + if a < b: + V.graph.sizevars.check_lt(left, right) + return a < b + + +class HalideKernel(SIMDKernel): + overrides = HalideOverrides # type: ignore[assignment] + kexpr: Callable[[sympy.Expr], str] = texpr + + def __init__( + self, + tiling: dict[str, sympy.Expr], + **kwargs, + ) -> None: + super().__init__(tiling, **kwargs) + # For halide, we just write directly to the body + self.compute = self.body + self.loads = self.body + self.stores = self.body + self.indexing_code_dom = IndentedBuffer() + self.needs_dom_indexing = self.inside_reduction + self.has_reduction = self.inside_reduction + self.buffer_dimensions: dict[str, list[DimensionInfo]] = {} + self.buffer_offsets: dict[str, sympy.Expr] = {} + # {h0: size1, h1: size2, ...} + self.halide_vars: dict[sympy.Symbol, sympy.Expr] = {} + # {x0: h0, x1: h1+10*h2, ...} + self.index_replacements: dict[sympy.Expr, sympy.Expr] = {} + # {h1: hr1, ...} + self.reduction_renames: dict[sympy.Symbol, sympy.Symbol] = {} + # {"i": {h0: hi0}, "o": ...} + self.dom_renames: dict[str, dict[sympy.Symbol, sympy.Symbol]] = {} + # {"in_ptr0": ["in_ptr0_view0"], ...} + self.buffer_aliases: dict[str, list[str]] = defaultdict(list) + self.has_indirect_indexing = False + + def dtype_to_str(self, dtype: torch.dtype) -> str: + return halide_type(dtype) + + # pyrefly: ignore [bad-override] + def create_cse_var(self, name, bounds=None, dtype=None, shape=None): + self.body.writeline(f"{name} = hl.Func({name!r})") + # pyrefly: ignore [bad-argument-type] + return HalideCSEVariable(name, bounds, dtype, shape) + + def finalize_indexing(self, indices: Sequence[sympy.Expr]): + """ + Hook called right before codegen with every index that will be + used in the fused kernel. + + This populates self.halide_vars/index_replacements/reduction_renames which is an alternate indexing + scheme that avoids using divide and modulus. Instead of xindex/yindex/rindex + we base indexing on a larger number of vars whose product combines to those. + + This function populates self.halide_vars, self.index_replacements, and self.reduction_renames + """ + assert not ( + self.index_replacements or self.halide_vars or self.reduction_renames + ) + size_hint = functools.partial(V.graph.sizevars.size_hint, fallback=inf) # type: ignore[arg-type] + # pyrefly: ignore [bad-assignment] + indices = dict.fromkeys(map(super().prepare_indexing, indices)) + all_used_symbols = OrderedSet[Any]() + sym_to_node = { + n.symbol(): n + for n in itertools.chain.from_iterable( + [tree.nodes.values() for tree in self.range_trees] + ) + } + + def simplify(expr): + return sympy.simplify( + V.graph.sizevars.remove_precomputed_replacements(expr) + ) + + def visit_modular_indexing(base, divisor, modulus): + if base in sym_to_node: + node = sym_to_node[base] + all_used_symbols.add( + node.root.lookup( + node.divisor * divisor, + V.graph.sizevars.evaluate_min( + modulus, FloorDiv(node.length, divisor) + ), + ).symbol() + ) + + def visit_floor_div(base, divisor): + if base in sym_to_node: + node = sym_to_node[base] + all_used_symbols.add( + node.root.lookup( + node.divisor * divisor, + FloorDiv(node.length, divisor), + ).symbol() + ) + + # first figure out all_used_symbols to do dead symbol elimination + for index in indices: + if index.has(ModularIndexing): + index.replace( + ModularIndexing( + sympy.Wild("base"), + sympy.Wild("divisor"), + sympy.Wild("modulus"), + ), + visit_modular_indexing, + ) + if index.has(FloorDiv): + index.replace( + FloorDiv( + sympy.Wild("base"), + sympy.Wild("divisor"), + ), + visit_floor_div, + ) + all_used_symbols.update(super().prepare_indexing(index).free_symbols) + + self.has_indirect_indexing = any( + symbol_is_type(sym, SymT.INDIRECT) for sym in all_used_symbols + ) + + had_fallback = False + for tree in reversed(self.range_trees): + nodes = [n for n in tree.nodes.values() if n.symbol() in all_used_symbols] + nodes.sort(key=lambda n: size_hint(n.divisor)) + if not nodes: + nodes.append(tree.lookup(1, tree.numel)) + handled_count = 0 + divisor = sympy.S.One + added_sym_size = [] + # decide on a minimal set of symbols and put them in self.halide_vars + while handled_count < len(nodes) and not eq(tree.numel, divisor): + sizes_to_add = [ + simplify(n.length) for n in nodes if eq(n.divisor, divisor) + ] + handled_count += len(sizes_to_add) + assert sizes_to_add, nodes + end = divisor * functools.reduce( + V.graph.sizevars.evaluate_max, sizes_to_add + ) + sizes_to_add.extend( + [ + simplify(n.divisor / divisor) + for n in nodes + if lt(divisor, n.divisor) and lt(n.divisor, end) + ] + ) + while sizes_to_add: + next_size = functools.reduce(sympy.gcd, sizes_to_add) + if eq(next_size, 1): + # sizes share no common factors, e.g [2, 21, 42, 441, 889056] + # TODO(jansel): we should just prevent fusion in cases that hit this + next_size = simplify(tree.numel / divisor) + assert not eq(next_size, 1) + sizes_to_add = [] + handled_count = len(nodes) + had_fallback = True + sym = sympy_index_symbol(f"h{len(self.halide_vars)}") + # pyrefly: ignore [missing-argument] + if tree.is_reduction: + self.reduction_renames[sym] = sympy_index_symbol( + f"hr{len(self.halide_vars)}" + ) + self.halide_vars[sym] = next_size + added_sym_size.append((sym, next_size)) + divisor *= next_size + new_sizes = [n.length for n in nodes if eq(n.divisor, divisor)] + handled_count += len(new_sizes) + prior_len = len(sizes_to_add) + sizes_to_add = [ + sympy.simplify(s / next_size) + for s in sizes_to_add + if not eq(s, next_size) + ] + assert len(sizes_to_add) < prior_len or prior_len == 0 + sizes_to_add.extend(new_sizes) + + # create a mapping to the new set of symbols in self.index_replacements + for node in nodes: + try: + idx = 0 + divisor = 1 + while not eq(node.divisor, divisor): + sym, size = added_sym_size[idx] + idx += 1 + divisor *= size + length = 1 + expr = sympy.S.Zero + while not eq(node.length, length): + sym, size = added_sym_size[idx] + idx += 1 + expr += length * sym + length *= size + self.index_replacements[node.symbol()] = expr + except IndexError: + assert had_fallback + full_index = sympy.S.Zero + stride = sympy.S.One + for sym, size in added_sym_size: + full_index += stride * sym + stride *= size + self.index_replacements[node.symbol()] = ( + V.graph.sizevars.simplify_with_ranges( + ModularIndexing(full_index, node.divisor, node.length), + self.halide_vars, # type: ignore[arg-type] + ) + ) + + # codegen the variable definitions + for sym in self.halide_vars: + self.indexing_code.writeline(f"{sym} = hl.Var({sym.name!r})") + if self.reduction_renames: + self.codegen_rdom( + "rdom", + {rv: self.halide_vars[v] for v, rv in self.reduction_renames.items()}, + ) + + def setup_dom_indexing(self): + """RDom based indexing uses explicit iteration ranges for Func updates""" + prefix = "i" if self.inside_reduction else "o" + if prefix in self.dom_renames: + return self.dom_renames[prefix] + + renames = {} + for var in self.halide_vars: + if not self.inside_reduction and var in self.reduction_renames: + continue + m = re.match(r"^h(\d+)$", var.name) + assert m + renames[var] = sympy_index_symbol(f"h{prefix}{m.group(1)}") + + self.codegen_rdom( + f"{prefix}dom", {rv: self.halide_vars[v] for v, rv in renames.items()} + ) + + self.dom_renames[prefix] = renames + return renames + + def codegen_rdom(self, name, vars): + rsizes = [ + f"hl.Range(0, {self.kexpr(self.rename_indexing(size))})" + for size in vars.values() + ] + self.indexing_code.writeline(f"{name} = hl.RDom([{', '.join(rsizes)}])") + for i, rsym in enumerate(vars.keys()): + self.indexing_code.writeline(f"{rsym} = {name}[{i}]") + + def prepare_indexing( + self, + index: sympy.Expr, + ): + index = super().prepare_indexing(index) + index = sympy_subs(index, self.index_replacements) + return V.graph.sizevars.simplify_with_ranges(index, self.halide_vars) # type: ignore[arg-type] + + def sym_size(self, sym): + """The size of an index symbol""" + if symbol_is_type(sym, SymT.TMP): + return self.lookup_cse_var(sym.name).indirect_indexing_size + return self.halide_vars[sym] + + def indexing_to_dimensions(self, var: str, index: sympy.Expr, is_store: bool): + """Convert address-based indexing into dimensions using self.halide_vars""" + symbols = [] + for sym in sorted(index.free_symbols, key=lambda x: x.name): # type: ignore[attr-defined] + if symbol_is_type(sym, (SymT.HALIDE, SymT.TMP)): + symbols.append(sym) + else: + assert symbol_is_type( + sym, + ( + SymT.UNBACKED_INT, + SymT.SIZE, + SymT.PRECOMPUTED_SIZE, + ), + ), sym + + # group the expression by variables used + offset = sympy.S.Zero + split_expr = dict.fromkeys(symbols, sympy.S.Zero) + split_failed: list[tuple[list[sympy.Symbol], sympy.Expr]] = [] + index = sympy.expand(self.rename_indexing(index)) + for part in index.args if isinstance(index, sympy.Add) else [index]: + part_vars = [v for v in part.free_symbols if v in split_expr] + if len(part_vars) == 0: + offset += part + elif len(part_vars) == 1: + split_expr[part_vars[0]] += part + else: + new_split_failed = [] + for i in range(len(split_failed)): + assert split_failed[i] is not None + other_vars, other_part = split_failed[i] + if OrderedSet(other_vars) & OrderedSet(part_vars): + part_vars.extend([v for v in other_vars if v not in part_vars]) + part += other_part + else: + new_split_failed.append((other_vars, other_part)) + split_failed = [*new_split_failed, (part_vars, part)] + + def expr_to_dimension(expr, syms): + expr = sympy.factor(expr) + if len(syms) == 1: + stride_wild = sympy.Wild("wild", exclude=symbols) + m = expr.match(stride_wild * syms[0]) + if m: + return DimensionInfo( + syms[0], self.sym_size(syms[0]), m[stride_wild] + ) + assert not is_store, expr + length = sympy.simplify( + sympy_subs(expr, {sym: self.sym_size(sym) - 1 for sym in syms}) + 1 + ) + stride = sympy.S.One + if isinstance(expr, sympy.Mul): + for term in expr.args: + if isinstance(term, sympy.Integer): + stride *= term + expr = sympy.simplify(expr / term) + length = sympy.simplify(sympy.ceiling(length / term)) + return DimensionInfo(expr, length, stride) + + # try to turn each group into a strided access + dims = [] + for syms, expr in split_failed: + for v in syms: + expr += split_expr.pop(v) + dims.append(expr_to_dimension(expr, syms)) + for sym, expr in split_expr.items(): + dims.append(expr_to_dimension(expr, [sym])) + dims.sort(key=lambda d: V.graph.sizevars.size_hint(d.stride, fallback=inf)) # type: ignore[arg-type] + + if not dims: # scalar load/store + if self.has_indirect_indexing: + # workaround https://github.com/halide/Halide/issues/8338 + dims.append(DimensionInfo(sympy.S.Zero, 1, 1)) + elif not V.graph.sizevars.statically_known_equals(dims[0].stride, 1): + # Halide assumes dimension 0 is stride == 1, so add a dummy dimension + dims.insert( + 0, DimensionInfo(sympy.S.Zero, 1 if is_store else dims[0].stride, 1) + ) + + if dims and not is_store: + if var in self.buffer_offsets and V.graph.sizevars.statically_known_geq( + offset, self.buffer_offsets[var] + ): + # reuse the existing offset to avoid needing an input alias + self.apply_offset_to_dimension(dims, offset - self.buffer_offsets[var]) + offset = self.buffer_offsets[var] + elif V.graph.sizevars.statically_known_gt( + offset, 0 + ): # TODO(jansel): negative offsets + # roll the offset into the dimensions for cleaner indexing + self.apply_offset_to_dimension(dims, offset) + offset = 0 + + orig_var = var + for i in itertools.count(): + if self.install_dims(var, dims, offset, is_store): + return var, dims + assert not is_store + var = f"{orig_var}_view{i}" + if var not in self.buffer_aliases[orig_var]: + self.buffer_aliases[orig_var].append(var) + + def install_dims(self, var, dims, offset, is_store): + """Try to set self.buffer_dimensions[var], return True on success""" + if var not in self.buffer_dimensions: + self.buffer_dimensions[var] = dims + self.buffer_offsets[var] = offset + return True + if self.buffer_offsets[var] != offset or len( + self.buffer_dimensions[var] + ) != len(dims): + return False + if is_store: + return self.buffer_dimensions[var] == dims + for old, new in zip(self.buffer_dimensions[var], dims): + if old.stride != new.stride: + return False + if old.size != new.size or old.expr != new.expr: + old.size = V.graph.sizevars.evaluate_max(old.size, new.size) + old.expr = None + return True + + def apply_offset_to_dimension(self, dims, offset): + if offset == 0: + return + for i in reversed(range(len(dims))): + if dims[i].stride == 1 or V.graph.sizevars.statically_known_geq( + offset, dims[i].stride + ): + part = FloorDiv(offset, dims[i].stride) + offset -= part * dims[i].stride + dims[i].expr += part + assert offset == 0 + + def used_dims_from_index(self, index: sympy.Expr): + """Detect which range trees are used to populate HalideCSEVariable.used_dims""" + used_dims = OrderedSet[sympy.Symbol]() + for sym in index.free_symbols: + assert isinstance(sym, sympy.Symbol) + if symbol_is_type(sym, SymT.TMP): + # indirect indexing + cse_var = self.lookup_cse_var(sym.name) + assert ( + isinstance(cse_var, HalideCSEVariable) + and cse_var.used_dims is not None + ) + used_dims.update(cse_var.used_dims) + elif symbol_is_type(sym, SymT.HALIDE): + used_dims.add(sym) + elif symbol_is_type( + sym, (SymT.UNBACKED_INT, SymT.SIZE, SymT.PRECOMPUTED_SIZE, SymT.INDEX) + ): + pass + else: + raise NotImplementedError(f"unhandled symbol {sym}") + return self.sort_used_dims(used_dims) + + def sort_used_dims(self, used_dims): + assert all(isinstance(x, sympy.Expr) for x in used_dims) + ordered = [ + sym + for sym in itertools.chain( + self.halide_vars, self.reduction_renames.values() + ) + if sym in used_dims + ] + assert len(ordered) == len(used_dims) + return ordered + + def make_index_str(self, dims, replacements=None, zero_vars=False): + index_str = ", ".join(d.index_str(replacements, zero_vars) for d in dims) + if len(dims) == 0: + index_str = "()" + elif len(dims) == 1: + # workaround for https://github.com/halide/Halide/issues/8299 + index_str = f"{index_str}," + return index_str + + def load(self, name: str, index: sympy.Expr): + """Codegen a load from an InputBuffer""" + var = self.args.input(name) + index = self.prepare_indexing(index) + var, dims = self.indexing_to_dimensions(var, index, False) + line = f"{var}[{self.make_index_str(dims)}]" + dtype = V.graph.get_dtype(name) + if dtype in (torch.float16, torch.bfloat16): + dtype = torch.float32 + line = f"hl.cast(hl.Float(32), {line})" + + if self._load_mask: + assert ( + isinstance(self._load_mask, HalideCSEVariable) + and self._load_mask.used_dims is not None + ) + used_dims = OrderedSet( + (*self.used_dims_from_index(index), *self._load_mask.used_dims) + ) + result = self.newfunc(self.sort_used_dims(used_dims)) + if result.used_dims: + self.body.writeline(f"{result.name}_mask = hl.RDom([hl.Range(0, 1)])") + self.body.writeline(f"{result.name}_mask.where({self._load_mask})") + other = self.kexpr(self._load_other or 0) # type: ignore[arg-type] + self.body.writeline( + f"{result} = hl.cast({halide_type(dtype)}, {other})" + ) + self.body.writeline( + f"{result} = {line} + hl.cast({halide_type(dtype)}, {result.name}_mask)" + ) + else: + # scalar case + self.body.writeline( + f"{result} = hl.select({self._load_mask}, {line}, hl.cast({halide_type(dtype)}, 0))" + ) + return result + else: + return self.genfunc(line, self.used_dims_from_index(index)) + + def lookup_cse_var(self, name: str): + return self.cse.varname_map[re.sub(r"\[.*", "", name)] + + def store( + self, name: str, index: sympy.Expr, value: CSEVariable, mode: StoreMode = None + ) -> None: + """Codegen a store to an OutputBuffer""" + assert isinstance(value, HalideCSEVariable) + var = self.args.output(name) + index = self.prepare_indexing(index) + var, dims = self.indexing_to_dimensions(var, index, True) + if self.is_indirect_indexing(index) or mode is not None: + replacements = self.setup_dom_indexing() + index_str = self.make_index_str(dims, replacements) + value_str = value.subs_str(replacements) + undef_dims = (", ".join(["hl.Var()"] * len(dims))) or "()" + self.body.writeline( + DeferredLine(name, f"{var}[{undef_dims}] = hl.undef({var}.type())") + ) + else: + index_str = self.make_index_str(dims, zero_vars=True) + value_str = str(value) + + dtype = V.graph.get_dtype(name) + if mode is None: + line = f"{var}[{index_str}] = hl.cast({halide_type(dtype)}, {value_str})" + elif mode == "atomic_add": + line = f"{var}[{index_str}] += hl.cast({halide_type(dtype)}, {value_str})" + else: + raise NotImplementedError(f"store mode={mode}") + self.body.writeline(DeferredLine(name, line)) + + def reduction( + self, + dtype: torch.dtype, + src_dtype: torch.dtype, + reduction_type: ReductionType, + value: Union[CSEVariable, tuple[CSEVariable, ...]], + ) -> Union[CSEVariable, tuple[CSEVariable, ...]]: + """Codegen a reduction operation""" + assert self.inside_reduction + assert not self._load_mask + cache_key = (src_dtype, reduction_type, value) + if cache_key in self.cse.reduction_cache: + return self.cse.reduction_cache[cache_key] + + if isinstance(value, tuple): + assert reduction_type == "welford_combine" + self.cse.reduction_cache[cache_key] = result_tuple = ( + self.welford_combine_impl(*value) + ) + return result_tuple + + assert isinstance(value, HalideCSEVariable) and value.used_dims is not None + reduction_vars = OrderedSet(self.reduction_renames) + result_var = self.newfunc( + [v for v in value.used_dims if v not in reduction_vars], + ) + if reduction_vars - OrderedSet(value.used_dims): + value = self.genfunc( + f"{value}", + self.sort_used_dims(OrderedSet((*value.used_dims, *reduction_vars))), + shape=value.shape, + ) + value_str = value.subs_str(self.reduction_renames) + default = ir.Reduction.default_accumulator(reduction_type, src_dtype) + acc_type = halide_acc_type(dtype) + + if reduction_type in ("argmax", "argmin"): + index = f"{result_var.name}_{reduction_type}" + self.body.writeline(f"{index} = hl.{reduction_type}(rdom, {value_str})") + # turn the N-D argmax index into a 1-D one + parts = [] + stride = 1 + for i, sym in enumerate(self.reduction_renames): + # pyrefly: ignore [bad-argument-type] + parts.append(f"{index}[{i}]") + if stride != 1: + # pyrefly: ignore [unsupported-operation] + parts[-1] += f"*{stride}" + stride *= self.halide_vars[sym] + self.body.writeline(f"{result_var} = {' + '.join(parts)}") + elif reduction_type == "welford_reduce": + # TODO(jansel): implement welford_reduce without fallback + result_var = self.welford_reduce_fallback(dtype, value) + else: + combine_fn = get_reduction_combine_fn(reduction_type, acc_type) + with V.set_ops_handler(AddParenHandler(HalideOverrides())): + combine_str = combine_fn(result_var, value_str) # type: ignore[arg-type] + default_str = f"hl.cast({acc_type}, {halide_constant(default)})" + self.body.writeline(f"{result_var} = {default_str}") + self.body.writeline(f"{result_var} = {combine_str}") + + self.cse.reduction_cache[cache_key] = result_var + return result_var + + def welford_combine_impl(self, mean, m2, weight): + assert isinstance(mean, HalideCSEVariable) and mean.used_dims is not None + assert isinstance(m2, HalideCSEVariable) and m2.used_dims is not None + assert isinstance(weight, HalideCSEVariable) and weight.used_dims is not None + used_dims = OrderedSet( + (*mean.used_dims, *m2.used_dims, *weight.used_dims) or self.halide_vars + ) + used_dims -= OrderedSet(self.reduction_renames) + result_var = self.newfunc(self.sort_used_dims(used_dims)) + default = [f"hl.cast({x.name}.type(), 0)" for x in (mean, m2, weight)] + pfx = result_var.name + self.body.writeline(f"{result_var} = hl.Tuple([{', '.join(default)}])") + self.body.writeline(f"{pfx}_mean_1 = {result_var}[0]") + self.body.writeline(f"{pfx}_m2_1 = {result_var}[1]") + self.body.writeline(f"{pfx}_weight_1 = {result_var}[2]") + self.body.writeline(f"{pfx}_mean_2 = {mean.subs_str(self.reduction_renames)}") + self.body.writeline(f"{pfx}_m2_2 = {m2.subs_str(self.reduction_renames)}") + self.body.writeline( + f"{pfx}_weight_2 = {weight.subs_str(self.reduction_renames)}" + ) + self.body.writeline(f"{pfx}_delta = {pfx}_mean_2 - {pfx}_mean_1") + self.body.writeline(f"{pfx}_new_weight = {pfx}_weight_1 + {pfx}_weight_2") + self.body.writeline( + f"{pfx}_w2_over_w = hl.select({pfx}_new_weight == 0.0, 0.0, {pfx}_weight_2 / {pfx}_new_weight)" + ) + update = [ + f"{pfx}_mean_1 + {pfx}_delta * {pfx}_w2_over_w", + f"{pfx}_m2_1 + {pfx}_m2_2 + {pfx}_delta * {pfx}_delta * {pfx}_weight_1 * {pfx}_w2_over_w", + f"{pfx}_new_weight", + ] + self.body.writeline(f"{result_var} = hl.Tuple([{', '.join(update)}])") + + unpacked = [] + for i in range(3): + unpacked.append(self.newfunc(result_var.used_dims)) + self.body.writeline(f"{unpacked[-1]} = {result_var}[{i}]") + return tuple(unpacked) + + def scan( + self, + dtypes: tuple[torch.dtype, ...], + combine_fn: Callable[ + [tuple[CSEVariable, ...], tuple[CSEVariable, ...]], tuple[CSEVariable, ...] + ], + values_orig: tuple[CSEVariable, ...], + ) -> tuple[CSEVariable, ...]: + assert self.inside_reduction + assert len(dtypes) == len(values_orig) + values: list[HalideCSEVariable] = [] + all_used_dims = OrderedSet[sympy.Symbol]() + + for value in values_orig: + assert isinstance(value, HalideCSEVariable) and value.used_dims is not None + if OrderedSet(value.used_dims) & OrderedSet(self.reduction_renames): + values.append(value) + else: + values.append( + self.genfunc( + f"{value}", + [*value.used_dims, [*self.reduction_renames][:1]], + shape=value.shape, + ) + ) + all_used_dims.update(value.used_dims) + result_var = self.newfunc(self.sort_used_dims(all_used_dims)) + assert result_var.used_dims and OrderedSet(result_var.used_dims) & OrderedSet( + self.reduction_renames + ) + initial = [ + f"hl.cast({halide_acc_type(dtype)}, {value})" + for dtype, value in zip(dtypes, values) + ] + + length = self.kexpr(self.rename_indexing(self.range_trees[-1].numel)) + scan_dom = f"{result_var.name}_rdom" + scan = f"{scan_dom}.x" + self.body.writeline(f"{scan_dom} = hl.RDom([hl.Range(1, {length})])") + + assert len(self.reduction_renames) == 1, ( + "multi-dimensional scan not implemented" + ) + (scan_var,) = [*self.reduction_renames] # type: ignore[misc] + scan_renames_cur = {scan_var: sympy_index_symbol(scan)} + scan_renames_pri = {scan_var: sympy_index_symbol(scan) - 1} + + if len(values) == 1: + + def maybe_tuple(x): + return x[0] + + read_left = [result_var.subs_str(scan_renames_pri)] + read_right = [result_var.subs_str(scan_renames_cur)] + else: + + def maybe_tuple(x): + return f"hl.Tuple([{', '.join(x)}])" + + read_left = [ + result_var.subs_str(scan_renames_pri) + f"[{i}]" + for i in range(len(values)) + ] + read_right = [ + result_var.subs_str(scan_renames_cur) + f"[{i}]" + for i in range(len(values)) + ] + + self.body.writeline(f"{result_var} = {maybe_tuple(initial)}") + + # Disable CSE for update fn + with V.set_ops_handler(AddParenHandler(HalideOverrides())): + combine_str = combine_fn(read_left, read_right) # type: ignore[arg-type] + self.body.writeline( + f"{result_var.subs_str(scan_renames_cur)} = {maybe_tuple(combine_str)}" + ) + + if len(values) == 1: + return (result_var,) + + unpack_vars = [self.newfunc(self.sort_used_dims(all_used_dims)) for _ in values] + for i, v in enumerate(unpack_vars): + self.body.writeline(f"{v} = {result_var}[{i}]") + return tuple(unpack_vars) + + def genfunc( + self, + line, + used_dims, + *, + bounds=ValueRanges.unknown(), + shape: BlockShapeType = None, + ) -> HalideCSEVariable: + var = self.cse.generate(self.body, line, bounds=bounds, shape=shape) + assert isinstance(var, HalideCSEVariable) + var.used_dims = used_dims + return var + + def newfunc(self, used_dims, *, shape: BlockShapeType = None) -> HalideCSEVariable: + var = self.cse.newvar(shape=shape) + assert isinstance(var, HalideCSEVariable) + var.used_dims = used_dims + return var + + def halide_buffer_numel(self, name: str): + """ + We map all tensors to 1D buffers in Halide since Halide has trouble representing some strides that PyTorch + supports. If there are gaps in the underlying layout the numel we pass to Halide includes the gaps while + PyTorch's numel excludes them. + """ + return V.graph.get_buffer(name).get_layout().storage_size() + + def halide_argdefs(self): + """ + Halide requires scalar inputs before outputs, so need to reorder args. + """ + + def arg_order(arg_tuple): + _call_str, arg = arg_tuple + if isinstance(arg, SizeArg): + return 1 # this would normally be at the end, move it to middle + elif "out_ptr" in arg.name: + return 2 + else: + assert "in_ptr" in arg.name + return 0 + + result: list[tuple[Optional[str], KernelArgType]] = [] + _, a, b, _ = self.args.python_argdefs() + for call_str, arg in sorted(zip(a, b), key=arg_order): + result.append((call_str, arg)) + if isinstance(arg, TensorArg): + assert arg.offset == 0 and arg.alias_of is None + result.extend( + ( + None, + TensorArg( + alias, + arg.buffer, + arg.dtype, + arg.offset, + alias_of=arg.name, + ), + ) + for alias in self.buffer_aliases.get(arg.name, ()) + ) + return result + + def halide_kernel_meta(self) -> HalideMeta: + """Compute metadata required by codecache.py""" + argtypes = [] + for _, arg in self.halide_argdefs(): + if isinstance(arg, SizeArg): + shape = None + stride = None + offset = None + dtype = "long" + else: + shape = [ + cexpr(self.rename_indexing(x.size)) + for x in self.buffer_dimensions[arg.name] + ] + stride = [ + cexpr(self.rename_indexing(x.stride)) + for x in self.buffer_dimensions[arg.name] + ] + assert len(shape) == len(stride) + offset = cexpr(self.buffer_offsets[arg.name]) + dtype = f"{DTYPE_TO_CPP[arg.dtype]}*" + argtypes.append( + HalideInputSpec( + dtype, + arg.name, + shape=shape, + stride=stride, + offset=offset, + alias_of=arg.alias_of, + ) + ) + + current_device = V.graph.get_current_device_or_throw() + if current_device.type == "cpu": + target = [config.halide.cpu_target] + scheduler = config.halide.scheduler_cpu + scheduler_flags = { + "parallelism": parallel_num_threads(), + } + cuda_device = None + else: + assert current_device.type == "cuda", "only cpu/cuda supported" + assert current_device.index <= 0, "only default device supported" + target = [config.halide.gpu_target] + scheduler = config.halide.scheduler_cuda + capability = torch.cuda.get_device_properties(current_device) + if "cuda_capability" not in target[0]: + for major, minor in [(8, 6), (8, 0), (7, 5), (7, 0), (6, 1)]: + if capability.major >= major and capability.minor >= minor: + target.append(f"cuda_capability_{major}{minor}") + break + target.append("user_context") + scheduler_flags = { + "parallelism": capability.multi_processor_count, + # TODO(jansel): explore other flags, see: + # grep parser.parse ~/Halide/src/autoschedulers/anderson2021/AutoSchedule.cpp + } + cuda_device = max(0, current_device.index) + + # strict_float is requires for correctness + target.append("strict_float") + + # without this we will initialize cuda once per kernel and hit errors + target.append("no_runtime") + + if not config.halide.asserts: + target.append("no_asserts") + + if config.halide.debug: + target.append("debug") + + if "64" in self.index_dtype: + # TODO(jansel): it is unclear if this does anything, since input sizes are still int32 + target.append("large_buffers") + + return HalideMeta( + argtypes, + target="-".join(target), + scheduler=scheduler, + scheduler_flags=scheduler_flags, # type: ignore[arg-type] + cuda_device=cuda_device, + ) + + def codegen_kernel(self, name=None): + """Called at the end to generate a final kernel string""" + if self.args.inplace_buffers: + raise Unsupported("inplace_buffers") + meta = self.halide_kernel_meta() # ensure needed args are added early + code = IndentedBuffer() + code.splice( + """ + import halide as hl + from torch._inductor.runtime import halide_helpers + from math import inf, nan + + @hl.generator(name="kernel") + class Kernel: + """, + strip=True, + ) + code.do_indent() + for _, arg in self.halide_argdefs(): + if isinstance(arg, SizeArg): + code.writeline(f"{arg.name} = hl.InputScalar({self.index_dtype})") + else: + assert arg.buffer, arg + argcls = "hl.OutputBuffer" if "out" in arg.name else "hl.InputBuffer" + argtype = halide_type(arg.dtype) + ndim = len(self.buffer_dimensions[arg.name]) + code.writeline(f"{arg.name} = {argcls}({argtype}, {ndim})") + code.splice( + """ + def generate(g): + """ + ) + code.do_indent() + for _, arg in self.halide_argdefs(): + code.writeline(f"{arg.name} = g.{arg.name}") + for old, new in self.args.aliases(): + code.writeline(f"{old} = {new}") + code.splice(self.indexing_code) + + def update_index(m): + var = cast(HalideCSEVariable, self.cse.varname_map[m.group(1)]) + assert var.used_dims is not None, var + return str(var) + + for line in self.body._lines: + if isinstance(line, str): + # fill in missing indices + line = HalideCSEVariable.undefined_re.sub(update_index, line) + code.writeline(line) + code.writeline("") + code.writeline("assert g.using_autoscheduler()") + + for _, arg in self.halide_argdefs(): + # fallback=1 below because halide requires buffers to be at least as large as the estimates + # This causes crashes if our estimate is greater than the vector length + # https://github.com/halide/Halide/issues/3103 + if isinstance(arg, SizeArg): + hint = V.graph.sizevars.size_hint(arg.expr, fallback=1) + code.writeline(f"{arg.name}.set_estimate({hint})") + else: + dims = self.buffer_dimensions[arg.name] + range_hints = [] + for i, dim in enumerate(dims): + hint = self._autoscheduler_workarounds( + V.graph.sizevars.size_hint(dim.size, fallback=1), dims + ) + # pyrefly: ignore [bad-argument-type] + range_hints.append(f"hl.Range(0, {hint})") + if "out" not in arg.name: + code.writeline(f"{arg.name}.dim({i}).set_min(0)") + try: + code.writeline( + f"{arg.name}.dim({i}).set_stride({int(dim.stride)})" + ) + except TypeError: + pass # not integer + try: + code.writeline( + f"{arg.name}.dim({i}).set_extent({int(dim.size)})" + ) + except TypeError: + pass # not integer + code.writeline(f"{arg.name}.set_estimates([{', '.join(range_hints)}])") + + code.do_unindent(2) + code.splice( + """ + if __name__ == "__main__": + hl.main() + """.rstrip(), + ) + if meta.scheduler: + code.splice( + f""" + else: + hl.load_plugin({HalideCodeCache.find_libautoschedule(meta.scheduler)!r}) + target = hl.Target({meta.target!r}) + autoscheduler = hl.AutoschedulerParams({meta.scheduler!r}, {meta.scheduler_flags!r}) + with hl.GeneratorContext(target, autoscheduler): + gen = Kernel() + pipeline = gen._build_pipeline() + # gen.compile_to_callable() does not run the autoscheduler + pipeline.apply_autoscheduler(target, autoscheduler) + kernel = pipeline.compile_to_callable([ + gen._get_input_parameter(a.name)._to_argument() + for a in gen._get_arginfos() + if a.dir == hl.ArgInfoDirection.Input + ], target) + """, + strip=True, + ) + else: + code.splice( + f""" + else: + with hl.GeneratorContext(hl.Target({meta.target!r})): + kernel = Kernel().compile_to_callable() + """, + strip=True, + ) + return code.getvalue() + + @staticmethod + def _autoscheduler_workarounds(n, dims): + if ( + len(dims) == 1 + and config.halide.scheduler_cuda == "Anderson2021" + and V.graph.get_current_device_or_throw().type == "cuda" + ): + # workaround https://github.com/halide/Halide/issues/8246 + n = max(2, n) + return n + + def call_kernel(self, name: str, node=None, deallocate_ws: bool = True): + """Codegen a call to this kernel""" + wrapper = V.graph.wrapper_code + call_args = [f"{n}" for n, arg in self.halide_argdefs() if arg.alias_of is None] + current_device = V.graph.get_current_device_or_throw() + if current_device.type == "cuda": + stream_name = wrapper.write_get_raw_stream( + current_device.index, V.graph.name + ) + call_args.append(stream_name) + wrapper.generate_kernel_call( + name, + call_args, + device=current_device, + triton=False, + ) + + def generate_assert(self, check): + return False # TODO(jansel): support asserts + + def check_bounds( + self, expr: sympy.Expr, size: sympy.Expr, lower: bool, upper: bool + ): + pass # TODO(jansel): support asserts + + +class HalideScheduling(SIMDScheduling): + kernel_type = HalideKernel # type: ignore[arg-type,assignment] + + @classmethod + def get_backend_features(cls, device: torch.device) -> OrderedSet[BackendFeature]: + result = OrderedSet( + [ + BackendFeature.TUPLE_REDUCTION, + BackendFeature.PREFER_STORE_LOOP_ORDER, + BackendFeature.REDUCE_TO_SINGLE_ELEMENT, + ] + ) + if config.halide.scan_kernels: + result.add(BackendFeature.SCAN) + return result + + def define_kernel(self, src_code, node_schedule, kernel): + """Codegen kernel definition to go in output wrapper code""" + wrapper = V.graph.wrapper_code + if src_code in wrapper.src_to_kernel: + kernel_name = wrapper.src_to_kernel[src_code] + else: + kernel_name = f"halide_kernel_{wrapper.next_kernel_suffix()}" + wrapper.src_to_kernel[src_code] = kernel_name + wrapper.add_import_once( + "from torch._inductor.runtime.hints import HalideMeta, HalideInputSpec" + ) + + compile_wrapper = IndentedBuffer() + compile_wrapper.writeline( + f"async_compile.halide({kernel.halide_kernel_meta()!r}, '''" + ) + compile_wrapper.splice(src_code, strip=True) + compile_wrapper.writeline("''')") + + origins, detailed_origins = get_kernel_metadata(node_schedule, wrapper) + metadata_comment = f"{origins}\n{detailed_origins}" + wrapper.define_kernel( + kernel_name, compile_wrapper.getvalue(), metadata_comment + ) + if is_metric_table_enabled("kernel_metadata"): + log_kernel_metadata(kernel_name, "", src_code) + + return kernel_name diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/memory_planning.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/memory_planning.py new file mode 100644 index 0000000000000000000000000000000000000000..12d7500975e5b93c6c837a48821ef737df6a3f19 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/memory_planning.py @@ -0,0 +1,816 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import collections +import dataclasses +import itertools +import pprint +from typing import Any, Optional, Protocol, TYPE_CHECKING + +import sympy + +import torch +from torch.fx.experimental.symbolic_shapes import free_unbacked_symbols +from torch.utils._ordered_set import OrderedSet + +from .. import config +from ..utils import _align, align, cache_on_self, CachedMethod, IndentedBuffer +from ..virtualized import V +from .wrapper import ( + AllocateLine, + BufferLike, + FreeIfNotReusedLine, + MemoryPlanningLine, + NullLine, + ReuseLine, +) + + +if TYPE_CHECKING: + from collections.abc import Iterable + + +@dataclasses.dataclass +class LiveRange: + """ + A range where a given tensor is live. Begin and end are both counters + representing points in the program of grouped memory operations. + Begin is inclusive, end is exclusive. + + Invariant: begin <= end + """ + + begin: float # int | +/-inf + end: float # int | +/-inf + + def contains(self, other: LiveRange): + """Is other entirely within self""" + return self.begin <= other.begin and other.end <= self.end + + def join(self, other: LiveRange): + """Combine two ranges using a union operation""" + return LiveRange(min(self.begin, other.begin), max(self.end, other.end)) + + def __len__(self): + return self.end - self.begin + + +class LiveRanges: + """ + A collection of LiveRange regions, allowing for non-contiguous + live regions. + + Invariant: LiveRanges.ranges is in sorted order and non-overlapping + """ + + def __init__(self, ranges: Iterable[LiveRange]): + ranges = [*sorted(ranges, key=lambda x: x.begin)] + self.ranges = ranges[:1] + for r in ranges[1:]: + assert self.ranges[-1].begin <= r.begin + if self.ranges[-1].end >= r.begin: + self.ranges[-1] = LiveRange.join(self.ranges[-1], r) + else: + self.ranges.append(r) + + def overlaps(self, other: LiveRanges): + """Check if any pair of ranges in self and other overlap""" + left = collections.deque(self.ranges) + right = collections.deque(other.ranges) + while left and right: + if left[0].begin > right[0].begin: + left, right = right, left + assert left[0].begin <= right[0].begin + if left[0].end > right[0].begin: + return True + left.popleft() + return False + + @property + def begin(self): + return self.ranges[0].begin + + @property + def end(self): + return self.ranges[-1].end + + def __repr__(self): + return f"{self.__class__.__name__}([{', '.join(map(repr, self.ranges))}])" + + +class AllocationTreeNode: + """ + Abstract base class for nodes in allocation pool. + """ + + def allocate(self, block: Allocation, is_last: bool) -> bool: + """ + Try to assign block to a memory location in this bool. Return True if + an assignment was made. + """ + return False + + def get_live_ranges(self) -> LiveRanges: + """Aggregate LiveRanges for all objects below this in tree""" + raise NotImplementedError + + def get_size_hint(self) -> int: + """Number of bytes used for example inputs""" + raise NotImplementedError + + def get_symbolic_size(self) -> sympy.Expr: + """Number of bytes needed at runtime""" + raise NotImplementedError + + def finalize(self, pool, offset) -> AllocationTreeNode: + """Called after all allocations have been made""" + return self + + def is_empty(self): + return False + + +@dataclasses.dataclass +class Allocation(AllocationTreeNode): + """ + Represents memory allocated to a given node in the allocation pool. + """ + + node: BufferLike + live_range: LiveRange + size_hint: int + symbolic_size: sympy.Expr + allocated: bool = False + pool: Optional[AllocationPool] = None + offset: Optional[sympy.Expr] = None + earliest_available: Optional[float] = None + + def __post_init__(self) -> None: + has_unbacked_sym = False + for s in self.node.get_layout().size: + if free_unbacked_symbols(s): + has_unbacked_sym = True + break + + if has_unbacked_sym: + self.earliest_available = self.get_live_ranges().begin + + @property + def device(self): + return self.node.get_device() + + def get_live_ranges(self): + return LiveRanges([self.live_range]) + + def get_size_hint(self): + return self.size_hint + + def get_symbolic_size(self): + return self.symbolic_size + + def mark_allocated(self): + assert not self.allocated + self.allocated = True + + def finalize(self, pool, offset): + assert self.pool is None and self.offset is None + self.pool = pool + self.offset = offset + return self + + def codegen_alloc_from_pool(self, wrapper): + assert self.pool + node = self.node + shape = tuple(node.get_size()) + stride = tuple(node.get_stride()) + return wrapper.codegen_alloc_from_pool( + self.pool.name, self.offset, node.get_dtype(), shape, stride + ) + + def __repr__(self): + return ( + f"{self.__class__.__name__}(" + f"node={self.node.get_name()}, " + f"live_range={self.live_range}, " + f"size_hint={self.size_hint}, " + f"symbolic_size={self.symbolic_size}, " + f"pool={self.pool.name if self.pool else None}, " + f"offset={self.offset})" + ) + + def get_earliest_available(self): + return self.earliest_available + + +@dataclasses.dataclass +class Empty(AllocationTreeNode): + """ + Placeholder to represent empty space in the allocation pool. + Only exists to get the size_hint correct in parent nodes. + """ + + size_hint: int + + def get_live_ranges(self): + return LiveRanges([]) + + def get_size_hint(self): + return self.size_hint + + def get_symbolic_size(self): + return 0 + + def is_empty(self): + return True + + +class MemorySplitProtocol(Protocol): + get_live_ranges: CachedMethod[[], LiveRanges] + get_size_hint: CachedMethod[[], int] + get_symbolic_size: CachedMethod[[], sympy.Expr] + + def _allocate(self, block: Allocation, is_last: bool) -> bool: ... + + +class ClearCacheOnAllocateMixin(MemorySplitProtocol): + """ + Helper to assist in caching get_live_ranges, get_size_hint, and + get_symbolic_size. + """ + + def allocate(self, block: Allocation, is_last: bool): + is_allocated = self._allocate(block, is_last) + if is_allocated: + self.clear_cache() + return is_allocated + + def clear_cache(self): + self.get_live_ranges.clear_cache(self) + self.get_size_hint.clear_cache(self) + self.get_symbolic_size.clear_cache(self) + + +@dataclasses.dataclass +class TemporalSplit(ClearCacheOnAllocateMixin, AllocationTreeNode): + """ + Contains a list of allocations not overlapping in LiveRanges. + + Invariant: no pair (a,b) in self.allocations will have: + a.get_live_ranges().overlaps(b.get_live_ranges()) + """ + + allocations: list[AllocationTreeNode] + + def _allocate(self, block: Allocation, is_last: bool): + slot_size = self.get_size_hint() + block_size = block.get_size_hint() + if not is_last and block_size > slot_size: + return False # doesn't fit + + block_live = block.get_live_ranges() + overlapping = [ + s for s in self.allocations if s.get_live_ranges().overlaps(block_live) + ] + if len(overlapping) > 1: + # TODO(jansel): we could try harder here by merging overlapping in space + return False + elif len(overlapping) == 1: + return overlapping[0].allocate(block, is_last) + else: + block.mark_allocated() + + if len(self.allocations) == 1 and isinstance(self.allocations[-1], Empty): + self.allocations.pop() + + if slot_size == block_size: + # perfect fit + self.allocations.append(block) + elif slot_size > block_size: + self.allocations.append( + SpatialSplit.create(block, slot_size - block_size) + ) + else: # grow this allocation + assert is_last + self.allocations = [ + *( + SpatialSplit.create(a, block_size - slot_size) + for a in self.allocations + ), + block, + ] + return True + + @cache_on_self + def get_live_ranges(self) -> LiveRanges: + return LiveRanges( + itertools.chain.from_iterable( + x.get_live_ranges().ranges for x in self.allocations + ) + ) + + @cache_on_self + def get_size_hint(self) -> int: + if not self.allocations: + return 0 + return max(x.get_size_hint() for x in self.allocations) + + @cache_on_self + def get_symbolic_size(self) -> sympy.Expr: + if not self.allocations: + return 0 # type: ignore[return-value] + return sympy.Max(*[x.get_symbolic_size() for x in self.allocations]) + + def is_empty(self): + return len(self.allocations) == 1 and self.allocations[0].is_empty() + + def finalize(self, pool, offset): + self.allocations = [block.finalize(pool, offset) for block in self.allocations] + self.clear_cache() + if len(self.allocations) == 1: + return self.allocations[0] + return self + + +@dataclasses.dataclass +class SpatialSplit(ClearCacheOnAllocateMixin, AllocationTreeNode): + """ + Contains two allocations, left and right, that do not overlap in space. + Right will be allocated immediately after left in memory. + """ + + left: TemporalSplit + right: TemporalSplit + + @staticmethod + def create(left, extra_space): + assert isinstance(left, AllocationTreeNode) + assert isinstance(extra_space, int) and extra_space >= 1 + return SpatialSplit(TemporalSplit([left]), TemporalSplit([Empty(extra_space)])) + + def _allocate(self, block: Allocation, is_last: bool): + return self.left.allocate(block, False) or self.right.allocate(block, is_last) + + @cache_on_self + def get_live_ranges(self): + return LiveRanges( + itertools.chain( + self.left.get_live_ranges().ranges, self.right.get_live_ranges().ranges + ) + ) + + @cache_on_self + def get_size_hint(self) -> int: + return _align(self.left.get_size_hint()) + self.right.get_size_hint() + + @cache_on_self + def get_symbolic_size(self) -> sympy.Expr: + return align(self.left.get_symbolic_size()) + self.right.get_symbolic_size() + + def finalize(self, pool, offset): + self.left = self.left.finalize(pool, offset) + self.right = self.right.finalize( + pool, offset + align(self.left.get_symbolic_size()) + ) + self.clear_cache() + if self.right.is_empty(): + return self.left + return self + + +@dataclasses.dataclass +class AllocationPool: + """ + Represents a pool of allocations that will be generated by a single + call to torch.empty. + """ + + device: torch.device + root: TemporalSplit + can_expand: bool = True + restrict_live_range: Optional[LiveRange] = None + name: Optional[str] = None + names_to_del: list[str] = dataclasses.field(default_factory=list) + creation_cache: dict[str, str] = dataclasses.field(default_factory=dict) + + def __post_init__(self) -> None: + for block in self.root.allocations: + if isinstance(block, Allocation): + self.update_restrict_live_range(block) + + def allocate(self, block: Allocation, is_last: bool): + if ( + self.restrict_live_range is not None + and not self.restrict_live_range.contains(block.live_range) + ): + return False + + block_earliest_available = block.get_earliest_available() + pool_begin = self.root.get_live_ranges().begin + if block_earliest_available and block_earliest_available > pool_begin: + return False + + is_last = self.can_expand and is_last + if self.root.allocate(block, is_last): + self.update_restrict_live_range(block) + return True + + if is_last: + return self.allocate_at_end(block) + + return False + + def update_restrict_live_range(self, block: Allocation): + if block_earliest_available := block.get_earliest_available(): + if self.restrict_live_range is None: + self.restrict_live_range = LiveRange( + block_earliest_available, float("inf") + ) + else: + self.restrict_live_range = LiveRange( + min(self.restrict_live_range.begin, block_earliest_available), + self.restrict_live_range.end, + ) + + def allocate_at_end(self, block): + block.mark_allocated() + self.root = TemporalSplit([SpatialSplit(self.root, TemporalSplit([block]))]) + self.update_restrict_live_range(block) + return True + + def finalize(self, name): + assert not self.name + self.name = name + self.names_to_del.append(name) + self.root.finalize(self, 0) + + def codegen_create(self, wrapper, code: IndentedBuffer): + assert self.name + nbytes = self.root.get_symbolic_size() + for block in self.root.allocations: + if isinstance(block, Allocation) and nbytes == block.get_symbolic_size(): + node = block.node + code.writeline( + wrapper.make_allocation( + self.name, + device=self.device, + dtype=node.get_dtype(), + shape=tuple(node.get_size()), + stride=tuple(node.get_stride()), + ) + ) + return + else: + code.writeline( + wrapper.make_allocation( + self.name, + device=self.device, + dtype=torch.uint8, + shape=(nbytes,), + stride=(1,), + ) + ) + + def codegen_destroy(self, wrapper, code: IndentedBuffer): + code.writeline(wrapper.make_free_by_names(self.names_to_del)) + + def __eq__(self, other): + return self is other + + def __hash__(self): + return id(self) + + +@dataclasses.dataclass +class AllocationPools: + """ + Collection of many AllocationPool objects grouped by device. + """ + + device_to_pools: dict[torch.device, list[AllocationPool]] = dataclasses.field( + default_factory=dict + ) + + def get_pools(self, block): + if block.device not in self.device_to_pools: + self.device_to_pools[block.device] = [] + return self.device_to_pools[block.device] + + def allocate(self, block: Allocation): + pools = self.get_pools(block) + + for pool in pools: + if pool.allocate(block, is_last=pool is pools[-1]): + return + + # everything is full, make a new pool + pools.append( + AllocationPool( + block.device, + TemporalSplit([block]), + can_expand=config.memory_pool != "none", + ) + ) + block.mark_allocated() + + def allocate_output(self, block: Allocation): + """Outputs get different pools so memory gets freed properly""" + pools = self.get_pools(block) + if pools and config.memory_pool in ("outputs", "combined"): + pools[-1].allocate_at_end(block) + else: + # create a new pool + block.mark_allocated() + pools.append( + AllocationPool( + block.device, + TemporalSplit([block]), + can_expand=config.memory_pool == "combined", + ) + ) + + def finalize(self): + """Called at the end of allocation process""" + for i, pool in enumerate( + itertools.chain.from_iterable(self.device_to_pools.values()) + ): + pool.finalize(f"pool{i}") + + def pprint(self): + for pool in itertools.chain.from_iterable(self.device_to_pools.values()): + print() + print(pool.name) + print(pool.root.get_live_ranges()) + pprint.pprint(pool.root) + + +class BufferGroup: + """ + Due to inplace reuse an allocated buffer can have many names. + This tracks these collections of buffers sharing underlying memory. + """ + + def __init__(self, node: BufferLike): + self.node = node + self.names = [node.get_name()] + self.is_output = False + self.allocation: Optional[Allocation] = None + self.live_range = LiveRange(float("inf"), -float("inf")) + + def update_usage(self, timestep: int): + """Expand self.live_range to include timestep""" + self.live_range = LiveRange( + min(timestep, self.live_range.begin), + max(timestep, self.live_range.end), + ) + + def sym_nbytes(self): + return self.node.get_layout().storage_size() * self.node.get_dtype().itemsize + + def make_allocation(self): + assert not self.allocation, "multiple allocations" + assert isinstance(self.live_range.begin, int), "live ranges not computed" + nbytes = self.sym_nbytes() + # For now, fallback value will be used if we encounter an unbacked SymInt. The longer-term plan is to have + # size_hint() use better heuristics for unbackeds, at which point the fallback value will be ignored. + size_hint = V.graph.sizevars.size_hint(nbytes, fallback=64) + self.allocation = Allocation( + self.node, + self.live_range, + size_hint=size_hint, + symbolic_size=nbytes, + ) + + def __repr__(self): + return ( + f"{self.__class__.__name__}({self.names!r}, is_output={self.is_output}, " + f"live_range={self.live_range}" + ) + + +@dataclasses.dataclass +class PoolMemoryPlanningLine(MemoryPlanningLine): + """Abstract base class for {Alloc,Dealloc}FromPoolLine""" + + group: BufferGroup + timestep: Optional[int] = None + + @property + def node(self): + return self.group.node + + +@dataclasses.dataclass +class AllocFromPoolLine(PoolMemoryPlanningLine): + """Similar to AllocationLine, but takes memory from a pool""" + + is_first_pool_usage: bool = False + + def codegen(self, code: IndentedBuffer): + allocation = self.group.allocation + assert allocation and allocation.pool + pool = allocation.pool + name = self.node.get_name() + + if self.is_first_pool_usage: + pool.codegen_create(self.wrapper, code) + + pool.names_to_del.extend(self.group.names) + alloc_from_pool, allocation_lines_to_write = allocation.codegen_alloc_from_pool( + self.wrapper + ) + code.writelines(allocation_lines_to_write) + if alloc_from_pool in pool.creation_cache: + code.writeline( + self.wrapper.make_tensor_alias( + name, pool.creation_cache[alloc_from_pool], "alloc" + ) + ) + else: + pool.creation_cache[alloc_from_pool] = name + code.writeline( + f"{self.wrapper.declare}{name} = {alloc_from_pool}{self.wrapper.ending}" + ) + + +@dataclasses.dataclass +class DeallocFromPoolLine(PoolMemoryPlanningLine): + """Similar to FreeIfNotReusedLine, but takes memory from a pool""" + + is_last_pool_usage: bool = False + + def codegen(self, code: IndentedBuffer): + if self.is_last_pool_usage: + assert self.group.allocation and self.group.allocation.pool + self.group.allocation.pool.codegen_destroy(self.wrapper, code) + + +@dataclasses.dataclass +class MemoryPlanner: + """ + Coordination object to run memory planning passes during wrapper + codegen. + """ + + wrapper: Any + pools: AllocationPools = dataclasses.field(default_factory=AllocationPools) + buffer_groups: Optional[list[BufferGroup]] = None + + def plan(self, lines: list[Any]) -> list[Any]: + """Call all the memory planning passes in sequence""" + lines = [*lines] + self.drop_removed_buffers(lines) + self.convert_to_pool_lines(lines) + self.compute_live_ranges(lines) + self.allocate_groups() + self.mark_first_last_usage(lines) + return lines + + def drop_removed_buffers(self, lines): + """ + Replace any memory planning lines in V.graph.removed_buffers with NullLine + """ + # drop any removed buffers + for i, line in enumerate(lines): + if isinstance(line, (AllocateLine, FreeIfNotReusedLine, ReuseLine)): + if line.node.get_name() in V.graph.removed_buffers: + lines[i] = NullLine(self.wrapper) + + def compute_buffer_groups(self, lines): + """ + Populates self.buffer_groups with BufferGroup objects that join + allocations with common storage (due to inplace reuse) into a + single object. + """ + name_to_group = {} + for line in lines: + if isinstance(line, AllocateLine): + name = line.node.get_name() + assert name not in name_to_group + name_to_group[name] = BufferGroup(line.node) + elif isinstance(line, ReuseLine): + old_name = line.node.get_name() + new_name = line.reused_as.get_name() + assert new_name not in name_to_group + # TODO(jansel): we should support reusing buffers created via ExternKernelAlloc + if old_name in name_to_group: + name_to_group[old_name].names.append(new_name) + name_to_group[new_name] = name_to_group[old_name] + + outputs = OrderedSet(V.graph.get_output_names()) + unique_groups = [*{id(g): g for g in name_to_group.values()}.values()] + for group in unique_groups: + group.is_output = any(x in outputs for x in group.names) + + assert self.buffer_groups is None + self.buffer_groups = unique_groups + return name_to_group + + def convert_to_pool_lines(self, lines): + """ + Convert AllocateLine/FreeIfNotReusedLine/ReuseLine into their + pool-based counterparts. + """ + name_to_group = self.compute_buffer_groups(lines) + for i, line in enumerate(lines): + if isinstance(line, AllocateLine): + if line.node.get_name() in name_to_group: + lines[i] = AllocFromPoolLine( + self.wrapper, name_to_group[line.node.get_name()] + ) + elif isinstance(line, FreeIfNotReusedLine): + assert not line.is_reused + if line.node.get_name() in name_to_group: + lines[i] = DeallocFromPoolLine( + self.wrapper, name_to_group[line.node.get_name()] + ) + elif isinstance(line, ReuseLine): + if line.node.get_name() in name_to_group: + line.delete_old = False + + def compute_live_ranges(self, lines): + """Populate every BufferGroup.live_ranges field based on first/last usage""" + timestep = 0 + worklist = collections.deque(lines) + while worklist: + if isinstance(worklist[0], MemoryPlanningLine): + timestep += 1 + while worklist and isinstance(worklist[0], MemoryPlanningLine): + line = worklist.popleft() + if isinstance(line, PoolMemoryPlanningLine): + line.group.update_usage(timestep) + line.timestep = timestep + else: + worklist.popleft() + + timestep += 1 + assert self.buffer_groups is not None + for group in self.buffer_groups: + if group.is_output: + group.update_usage(timestep) + + def allocate_groups(self): + """ + Assign every allocation to a specific location in a specific AllocationPool. + """ + assert config.memory_pool in ("none", "intermediates", "outputs", "combined") + assert self.buffer_groups is not None + + for group in self.buffer_groups: + group.make_allocation() + + outputs: list[Allocation] = [] + intermediates: list[Allocation] = [] + for group in self.buffer_groups: + assert group.allocation + if group.is_output and config.memory_pool != "combined": + outputs.append(group.allocation) + else: + intermediates.append(group.allocation) + + for block in sorted( + outputs, + key=lambda x: ( + x.size_hint, + -len(x.live_range), + ), + ): + self.pools.allocate_output(block) + + for block in sorted( + intermediates, + key=lambda x: ( + -x.size_hint, + -len(x.live_range), + ), + ): + self.pools.allocate(block) + + self.pools.finalize() + + def mark_first_last_usage(self, lines): + """ + Populate the AllocFromPoolLine.is_first_pool_usage and + DeallocFromPoolLine.is_last_pool_usage fields so that pools + are created/destroyed. + """ + seen = OrderedSet[AllocationPool]() + for line in lines: + if isinstance(line, AllocFromPoolLine): + assert line.group.allocation + pool = line.group.allocation.pool + assert pool is not None + if pool not in seen: + line.is_first_pool_usage = True + seen.add(pool) + + seen = OrderedSet[AllocationPool]() + for line in reversed(lines): + if isinstance(line, DeallocFromPoolLine): + assert line.group.allocation + pool = line.group.allocation.pool + assert pool is not None + if pool not in seen: + line.is_last_pool_usage = ( + pool.root.get_live_ranges().end <= line.timestep + ) + seen.add(pool) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/mps.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/mps.py new file mode 100644 index 0000000000000000000000000000000000000000..84165fea6e3803e6f4feaa33d8bbb5ae4af6be26 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/mps.py @@ -0,0 +1,1097 @@ +# This is not a feature-complete compiler backend +# Just an early prototype that shows that one can compile elementwise ops into a Metal shader +from __future__ import annotations + +import functools +import itertools +import logging +import math +from pathlib import Path +from typing import Any, Optional, TYPE_CHECKING + +import sympy +from sympy.printing.precedence import PRECEDENCE + +import torch +from torch.utils._cpp_embed_headers import _embed_headers +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.printers import CppPrinter, ExprPrinter as ExprPrinter_ +from torch.utils._sympy.value_ranges import ValueRanges + +from ..utils import ceildiv, get_bounds_index_expr, get_kernel_metadata +from ..virtualized import ops, OpsWrapper, V +from .common import ( + CSEVariable, + DeferredLine, + DTYPE_TO_COMPUTATION_DTYPE, + IndentedBuffer, + OpOverrides, + PythonPrinter, +) +from .simd import IterationRangesEntry, SIMDKernel, SIMDScheduling + + +if TYPE_CHECKING: + from typing import Union + + from ..ops_handler import ReductionType, StoreMode + from ..scheduler import Scheduler, SchedulerNode + from .common import OpVarT + +log = logging.getLogger(__name__) + +DTYPE_TO_METAL = { + torch.bool: "bool", + torch.int8: "char", + torch.int16: "short", + torch.int32: "int", + torch.int64: "long", + torch.uint8: "uchar", + torch.float: "float", + torch.half: "half", + torch.bfloat16: "bfloat", +} + + +def value_to_metal(val: Union[float, int, bool, str, CSEVariable]) -> str: + if isinstance(val, float): + if val == torch.inf: + return "HUGE_VALF" + elif val == -torch.inf: + return "-HUGE_VALF" + elif val != val: # Only float that not equal to self is nan + return "NAN" + return str(val) + elif isinstance(val, bool): + return "true" if val else "false" + return str(val) + + +class MetalExprPrinter(ExprPrinter_): + """Converts sympy expression to Metal code snippet""" + + def _print_FloorDiv(self, expr: sympy.Expr) -> str: + x, div = expr.args + x = self.doprint(x) + div = self.doprint(div) + if expr.is_integer: + return f"c10::metal::floor_divide({x}, {div})" + return f"metal::floor({x}) / ({div})" + + def _print_ModularIndexing(self, expr: sympy.Expr) -> str: + x, div, mod = expr.args + x = self.doprint(x) + if div != 1: + div = self.doprint(div) + if expr.is_integer: + x = f"({x}) / ({div})" + else: + x = f"metal::floor({x}) / ({div})" + mod = self.doprint(mod) + return f"({x}) % ({mod})" + + def _print_Min(self, expr: sympy.Expr) -> str: + if len(expr.args) != 2: + raise RuntimeError("metal::min only supported for 2 args") + a, b = map(self._print, expr.args) + typecast_a = f"static_cast({a})" + typecast_b = f"static_cast({b})" + return f"metal::min({typecast_a}, {typecast_b})" + + def _print_Max(self, expr: sympy.Expr) -> str: + if len(expr.args) != 2: + raise RuntimeError("metal::max only supported for 2 args") + a, b = map(self._print, expr.args) + typecast_a = f"static_cast({a})" + typecast_b = f"static_cast({b})" + return f"metal::max({typecast_a}, {typecast_b})" + + def _print_Abs(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"metal::abs({self._print(expr.args[0])})" + + def _print_RoundToInt(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"static_cast(metal::rint({self._print(expr.args[0])}))" + + def _print_RoundDecimal(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 2 + number, ndigits = expr.args + if number.is_integer: + # ndigits < 0 should have been filtered by the sympy function + assert ndigits < 0 + raise ValueError( + f"For integer inputs, only non-negative ndigits are currently supported, but got {ndigits}." + ) + number_str = self.parenthesize(number, PRECEDENCE["Mul"]) + return f"static_cast(metal::rint(1e{ndigits} * {number_str}) * 1e{-ndigits})" + + def _print_IntTrueDiv(self, expr: sympy.Expr) -> str: + lhs, rhs = expr.args + # TODO: This is only accurate up to 2**23 + return f"static_cast({self._print(lhs)}) / static_cast({self._print(rhs)})" + + def _print_PowByNatural(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 2 + x, y = map(self.doprint, expr.args) + return f"metal::pow(static_cast({x}), static_cast({y}))" + + def _print_ToFloat(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + x = self.doprint(expr.args[0]) + return f"static_cast({x})" + + def _print_Float(self, expr: sympy.Expr) -> str: + if expr.is_integer: + # sympy considers 0.0 to be integer, but Metal doesn't. + # this workaround prints the float as an integer + # xref: https://github.com/sympy/sympy/issues/26620 + return str(int(expr)) + else: + return str(expr) + + def _print_FloorToInt(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + x = self.doprint(expr.args[0]) + return f"static_cast(metal::floor(static_cast({x})))" + + _print_floor = _print_FloorToInt + + def _print_TruncToInt(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + x = self.doprint(expr.args[0]) + return f"static_cast(metal::trunc({x}))" + + def _print_OpaqueUnaryFn_log2(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + x = self.doprint(expr.args[0]) + return f"metal::log2({x})" + + def _print_Where(self, expr: sympy.Expr) -> str: + c, p, q = ( + self.parenthesize(arg, PRECEDENCE["Atom"] - 0.5) for arg in expr.args + ) + return f"{c} ? {p} : {q}" + + +class MetalOverrides(OpOverrides): + """Implements Metal-specific overrides for ops. Base class emits Python-friendly overrides.""" + + @staticmethod + def to_dtype( + x: CSEVariable, + dtype: torch.dtype, + src_dtype: Optional[torch.dtype] = None, + use_compute_types: bool = True, + ) -> str: + if dtype == torch.double: + log.warning( + "float64 cast requested, probably from tensorify_python_scalars" + ) + return f"static_cast({x})" + return f"static_cast<{DTYPE_TO_METAL[dtype]}>({x})" + + @staticmethod + def to_dtype_bitcast( + x: CSEVariable, dtype: torch.dtype, src_dtype: torch.dtype + ) -> str: + return f"as_type<{DTYPE_TO_METAL[dtype]}>(static_cast<{DTYPE_TO_METAL[src_dtype]}>({x}))" + + @staticmethod + def constant(val: Union[bool, float, int], dtype: torch.dtype) -> str: + return value_to_metal(val) + + @staticmethod + def index_expr(expr: sympy.Expr, dtype: torch.dtype) -> str: + idx_str = V.kernel.index_to_str(V.kernel.prepare_indexing(expr)) + var = V.kernel.cse.generate( + V.kernel.compute, idx_str, bounds=get_bounds_index_expr(expr) + ) + return ops.to_dtype(var, dtype) + + @staticmethod + def masked(mask: CSEVariable, body: sympy.Expr, other: CSEVariable) -> str: + # TODO: Type annotation for other is wrong, it's often float or int + with V.kernel.mask_loads(mask, other) as new_mask: + result = body() + + if result.bounds.is_bool: + other = bool(other) # type: ignore[assignment] + + return ops.where(new_mask, result, other) + + @staticmethod + def where(a: OpVarT, b: OpVarT, c: OpVarT) -> str: + return f"{a} ? {b} : {value_to_metal(c)}" + + @staticmethod + def remainder(a: OpVarT, b: OpVarT) -> str: + return f"c10::metal::remainder({a}, {b})" + + @staticmethod + def maximum(a: CSEVariable, b: CSEVariable) -> str: + typecast_a = f"static_cast({a})" + typecast_b = f"static_cast({b})" + return f"c10::metal::max({typecast_a}, {typecast_b})" + + @staticmethod + def minimum(a: CSEVariable, b: CSEVariable) -> str: + typecast_a = f"static_cast({a})" + typecast_b = f"static_cast({b})" + return f"c10::metal::min({typecast_a}, {typecast_b})" + + @staticmethod + def logical_or(a: CSEVariable, b: CSEVariable) -> str: + return f"{a} || {b}" + + @staticmethod + def logical_and(a: CSEVariable, b: CSEVariable) -> str: + return f"{a} && {b}" + + @staticmethod + def isnan(x: CSEVariable) -> str: + return f"metal::isnan({x})" + + @staticmethod + def isinf(x: CSEVariable) -> str: + return f"metal::isinf({x})" + + @staticmethod + def log(x: CSEVariable) -> str: + return f"metal::log({x})" + + @staticmethod + def exp(x: CSEVariable) -> str: + return f"metal::exp({x})" + + @staticmethod + def abs(x: CSEVariable) -> str: + return f"metal::abs({x})" + + @staticmethod + def signbit(x: CSEVariable) -> str: + return f"metal::signbit({x})" + + @staticmethod + def sin(x: CSEVariable) -> str: + return f"metal::precise::sin({x})" + + @staticmethod + def sinc(x: CSEVariable) -> str: + return f"c10::metal::sinc({x})" + + @staticmethod + def cos(x: CSEVariable) -> str: + return f"metal::precise::cos({x})" + + @staticmethod + def tan(x: CSEVariable) -> str: + return f"metal::tan({x})" + + @staticmethod + def asin(x: CSEVariable) -> str: + return f"metal::asin({x})" + + @staticmethod + def acos(x: CSEVariable) -> str: + return f"metal::acos({x})" + + @staticmethod + def atan(x: CSEVariable) -> str: + return f"metal::atan({x})" + + @staticmethod + def atan2(x: CSEVariable, y: CSEVariable) -> str: + return f"::metal::atan2({x}, {y})" + + @staticmethod + def sqrt(x: CSEVariable) -> str: + return f"metal::sqrt({x})" + + @staticmethod + def neg(x: CSEVariable) -> str: + # TODO: Does it rely on undefined behavior? + # If so, add special logic for unsigned types + return f"static_cast(-{x})" + + @staticmethod + def rsqrt(x: CSEVariable) -> str: + return f"metal::rsqrt({x})" + + @staticmethod + def tanh(x: CSEVariable) -> str: + return f"metal::tanh({x})" + + @staticmethod + def atanh(x: CSEVariable) -> str: + return f"metal::atanh({x})" + + @staticmethod + def floordiv(a: CSEVariable, b: CSEVariable) -> str: + # a and b must be of integer type + return f"c10::metal::floor_divide({a}, {b})" + + @staticmethod + def floor(x: CSEVariable) -> str: + return f"metal::floor({x})" + + @staticmethod + def sign(x: CSEVariable) -> str: + return f"metal::sign({x})" + + @staticmethod + def fmod(a: CSEVariable, b: CSEVariable) -> str: + typecast_a = f"static_cast({a})" + typecast_b = f"static_cast({b})" + return f"metal::fmod({typecast_a}, {typecast_b})" + + @staticmethod + def trunc(x: CSEVariable) -> str: + return f"metal::trunc({x})" + + @staticmethod + def truncdiv(a: CSEVariable, b: CSEVariable) -> str: + quot = f"{a} / {b}" + if (a.dtype is not None and a.dtype.is_floating_point) or ( + b.dtype is not None and b.dtype.is_floating_point + ): + return f"metal::trunc({quot})" + return quot + + @staticmethod + def ceil(x: CSEVariable) -> str: + return f"metal::ceil({x})" + + @staticmethod + def rand(seed: CSEVariable, offset: CSEVariable) -> str: + V.kernel.headers.add("random") + return f"c10::metal::rand({seed}, {offset})" + + @staticmethod + def randn(seed: CSEVariable, offset: CSEVariable) -> str: + V.kernel.headers.add("random") + return f"c10::metal::randn({seed}, {offset})" + + @staticmethod + def randint64( + seed: CSEVariable, offset: CSEVariable, low: CSEVariable, high: CSEVariable + ) -> str: + V.kernel.headers.add("random") + return f"c10::metal::randint64({seed}, {offset}, {low}, {high})" + + @staticmethod + def round(x: CSEVariable) -> str: + return f"metal::rint({x})" + + @staticmethod + def pow(a: CSEVariable, b: CSEVariable) -> str: + cast_a = f"static_cast({a})" + cast_b = f"static_cast({b})" + return f"metal::pow({cast_a}, {cast_b})" + + def _special_unary(self, a: CSEVariable, name: str) -> str: + V.kernel.headers.add("special_math") + return f"c10::metal::{name}({a})" + + def _special_binary(self, a: CSEVariable, b: CSEVariable, name: str) -> str: + V.kernel.headers.add("special_math") + return f"c10::metal::{name}({a}, {b})" + + @classmethod + def _initialize_special_ops(cls) -> None: + # Unary special ops + for name in [ + "erf", + "erfinv", + "i0", + "i0e", + "i1", + "i1e", + "digamma", + "spherical_bessel_j0", + ]: + setattr(cls, name, functools.partialmethod(cls._special_unary, name=name)) + + cls.lgamma = functools.partialmethod(cls._special_unary, name="log_gamma") # type: ignore[assignment] + + # Unary special ops with forward in method name + for name in [ + "bessel_j0", + "bessel_j1", + "bessel_y0", + "bessel_y1", + "modified_bessel_i0", + "modified_bessel_i1", + "modified_bessel_k0", + "modified_bessel_k1", + "scaled_modified_bessel_k0", + "scaled_modified_bessel_k1", + ]: + setattr( + cls, + name, + functools.partialmethod(cls._special_unary, name=name + "_forward"), + ) + + # Binary special ops + for name in [ + "polygamma", + "igamma", + "igammac", + "zeta", + ]: + setattr(cls, name, functools.partialmethod(cls._special_binary, name=name)) + + # Binary special ops with forward in method name + for name in [ + "chebyshev_polynomial_t", + "chebyshev_polynomial_u", + "chebyshev_polynomial_v", + "chebyshev_polynomial_w", + "hermite_polynomial_h", + "hermite_polynomial_he", + "shifted_chebyshev_polynomial_t", + "shifted_chebyshev_polynomial_u", + "shifted_chebyshev_polynomial_v", + "shifted_chebyshev_polynomial_w", + ]: + setattr( + cls, + name, + functools.partialmethod(cls._special_binary, name=name + "_forward"), + ) + + +MetalOverrides._initialize_pointwise_overrides("mps") +MetalOverrides._initialize_special_ops() + + +class MetalKernel(SIMDKernel): + """Implement Metal codegen based on the SIMDKernel abstraction""" + + overrides = MetalOverrides # type: ignore[assignment] + suffix = ";" + newvar_prefix = "auto " + max_threadgroup_size = 1024 + simd_group_size = 32 + pexpr = PythonPrinter().doprint + cexpr = CppPrinter().doprint + sexpr = MetalExprPrinter().doprint + kexpr = sexpr + headers: OrderedSet[str] = OrderedSet(["utils"]) + multistage_reduction_entry: list[IterationRangesEntry] = [] + + def __init__( + self, + tiling: dict[str, sympy.Expr], + **kwargs: Any, + ) -> None: + super().__init__(tiling, **kwargs) + self.acc_var_ids = itertools.count() + + def dtype_to_str(self, dtype: torch.dtype) -> str: + return DTYPE_TO_METAL[dtype] + + def load(self, name: str, index: sympy.Expr) -> CSEVariable: + """Codegen a load from an InputBuffer""" + var = self.args.input(name) + index = self.prepare_indexing(index) + dtype = V.graph.get_dtype(name) + line = f"{var}[{self.index_to_str(index)}]" + if dtype in [torch.float16, torch.bfloat16]: + # TODO(NS): Figure out the right balance between optype casts + # op_math_t for half-precision floats should be float32 + # Otherwise it can lead to a correctness issues with eager + line = f"static_cast({line})" + dtype = torch.float32 + return self.cse.generate(self.loads, line, dtype=dtype) + + def store( + self, name: str, index: sympy.Expr, value: CSEVariable, mode: StoreMode = None + ) -> None: + var = self.args.output(name) + index = self.prepare_indexing(index) + dtype_str = self.dtype_to_str(V.graph.get_dtype(name)) + cast_val = f"static_cast<{dtype_str}>({value})" + if mode is None: + line = f"{var}[{self.index_to_str(index)}] = {cast_val};" + elif mode == "atomic_add": + self.headers.add("atomic") + atomic_type = f"c10::metal::AtomicType<{dtype_str}>" + cast_var = f"reinterpret_cast({var})" + line = f"{atomic_type}::atomic_add({cast_var}, {self.index_to_str(index)}, {cast_val});" + else: + raise RuntimeError(f"Unimplemented store mode {mode}") + if self.inside_reduction: + self.compute.writeline(DeferredLine(name, line)) + else: + self.stores.writeline(DeferredLine(name, line)) + + def store_reduction(self, name: str, index: sympy.Expr, value: CSEVariable) -> None: + var = self.args.output(name) + index = self.prepare_indexing(index) + dtype_str = self.dtype_to_str(V.graph.get_dtype(name)) + # pyrefly: ignore [missing-argument] + reduction_dim = next(t for t in self.range_trees if t.is_reduction) + # Only one thread in the reduction group needs to store the results + line = f"{var}[{self.index_to_str(index)}] = static_cast<{dtype_str}>({value});" + line = f"if ({reduction_dim.name} == 0) {line}" + self.stores.writeline(DeferredLine(name, line)) + + def _new_idxvar( + self, + dtype: Union[str | torch.dtype], + elem_count: Optional[int] = None, + default_value: Optional[Any] = None, + is_threadgroup: bool = True, + bounds: ValueRanges[Any] = ValueRanges.unknown(), + ) -> CSEVariable: + if isinstance(dtype, torch.dtype): + dtype = self.dtype_to_str(dtype) + var_name = f"tmp_acc_{next(self.acc_var_ids)}" + var = V.kernel.create_cse_var(var_name, bounds, dtype) + var_def = "threadgroup " if is_threadgroup else "" + var_def += f"{dtype} {var_name}" + if elem_count: + var_def += f"[{self.sexpr(elem_count)}]" + if default_value is not None: + assert not is_threadgroup, "Thread group var can not have default value" + var_def += f" = {default_value}" + self.indexing_code.writeline(var_def + self.suffix) + return var + + def reduction( + self, + dtype: torch.dtype, + src_dtype: torch.dtype, + reduction_type: ReductionType, + value: Union[CSEVariable, tuple[CSEVariable, ...]], + ) -> Union[CSEVariable, tuple[CSEVariable, ...]]: + "Caching wrapper around _reduction_nocache" + cache_key = (src_dtype, reduction_type, value) + # Return cached reduction + if cache_key in self.cse.reduction_cache: + return self.cse.reduction_cache[cache_key] + result = self._reduction_nocache(dtype, src_dtype, reduction_type, value) + self.cse.reduction_cache[cache_key] = result # type: ignore[assignment] + return result + + def _reduction_nocache( + self, + dtype: torch.dtype, + src_dtype: torch.dtype, + reduction_type: ReductionType, + value: Union[CSEVariable, tuple[CSEVariable, ...]], + ) -> Union[CSEVariable, tuple[CSEVariable, ...]]: + """Codegen a reduction operation. + Only sum and prod operations are somewhat reasonable optimized""" + assert self.inside_reduction + assert not self._load_mask + + def _unwrap_helper(res3: CSEVariable) -> tuple[CSEVariable, ...]: + # Uwraps vec3 dtype into individual components + return OpsWrapper._unwrap( + [CSEVariable(f"{res3}.{t}", res3.bounds, res3.dtype) for t in "xyz"] + ) + + # Establish reduction buffer size and index expression + reduction_idx = "" + acc_buf_size = 1 + for rd in self.range_trees: + # pyrefly: ignore [missing-argument] + if not rd.is_reduction: + continue + if reduction_idx: + reduction_idx += " + " + reduction_idx += f"{rd.name} * {acc_buf_size}" + + if isinstance(rd.numel, sympy.Integer): + acc_buf_size *= rd.numel + else: + acc_buf_size *= sympy.Symbol( + f"{rd.prefix}numel", integer=True, positive=True + ) + + acc_buf_size = sympy.Min(acc_buf_size, self.max_threadgroup_size) + acc_buf_size_str = self.sexpr(acc_buf_size) + shmem_buf_size = ( + ceildiv(acc_buf_size, self.simd_group_size) + if isinstance(acc_buf_size, sympy.Integer) + else self.simd_group_size + ) + + if reduction_type == "any": + acc = self._new_idxvar(dtype) + self.indexing_code.writeline(f"{acc} = false;") + self.indexing_code.writeline( + "threadgroup_barrier(metal::mem_flags::mem_threadgroup);" + ) + self.compute.splice( + f""" + if ({value}) {{ + {acc} = true; + }} + """ + ) + self.stores.writeline( + "threadgroup_barrier(metal::mem_flags::mem_threadgroup);" + ) + return acc + + self.headers.add("reduction_utils") + + if reduction_type in ["prod", "sum"]: + acc_dtype = DTYPE_TO_COMPUTATION_DTYPE[src_dtype] + acc_buf = self._new_idxvar(acc_dtype, shmem_buf_size) + if not self.multistage_reduction_entry: + val = value + else: + default_val, reduction_op = ( + (0, "+") if reduction_type == "sum" else (1, "*") + ) + val = self._new_idxvar( + acc_dtype, default_value=default_val, is_threadgroup=False + ) + self.compute.splice(f"{val} {reduction_op}= {value};") + + return self.cse.generate( + self.stores, + f"c10::metal::threadgroup_{reduction_type}({acc_buf}, {val}, {reduction_idx}, {acc_buf_size_str})", + dtype=DTYPE_TO_COMPUTATION_DTYPE[dtype], + ) + if reduction_type in ["max", "min"]: + acc_buf = self._new_idxvar(src_dtype, shmem_buf_size) + src_metal_type = DTYPE_TO_METAL[src_dtype] + cast_value = f"static_cast<{src_metal_type}>({value})" + if not self.multistage_reduction_entry: + val = cast_value # type: ignore[assignment] + else: + lim_fn = "lowest" if reduction_type.endswith("max") else "max" + limit_val = f"::metal::numeric_limits<{src_metal_type}>::{lim_fn}()" + val = self._new_idxvar( + src_dtype, default_value=limit_val, is_threadgroup=False + ) + self.compute.splice( + f"{val} = ::c10::metal::{reduction_type}({val}, {cast_value});" + ) + return self.cse.generate( + self.stores, + f"c10::metal::threadgroup_{reduction_type}({acc_buf}, {val}, {reduction_idx}, {acc_buf_size_str})", + dtype=DTYPE_TO_COMPUTATION_DTYPE[dtype], + ) + if reduction_type in ["argmin", "argmax"]: + data_acc_buf = self._new_idxvar(src_dtype, shmem_buf_size) + idx_acc_buf = self._new_idxvar(dtype, shmem_buf_size) + src_metal_type = DTYPE_TO_METAL[src_dtype] + cast_value = f"static_cast<{src_metal_type}>({value})" + if not self.multistage_reduction_entry: + val = cast_value # type: ignore[assignment] + idx_val = f"static_cast<{DTYPE_TO_METAL[dtype]}>({reduction_idx})" + else: + lim_fn = "lowest" if reduction_type.endswith("max") else "max" + limit_val = f"::metal::numeric_limits<{src_metal_type}>::{lim_fn}()" + val = self._new_idxvar( + src_dtype, default_value=limit_val, is_threadgroup=False + ) + idx_val = self._new_idxvar(dtype, default_value=0, is_threadgroup=False) # type: ignore[assignment] + idx_var = next( + t + for t in self.range_tree_nodes.values() + # pyrefly: ignore [missing-argument] + if t.is_reduction + ) + cmp_op = ">" if reduction_type == "argmax" else "<" + nan_suffix = ( + f" || ::metal::isnan({value}) " + if src_dtype.is_floating_point + else "" + ) + self.compute.splice(f""" + if ({value} {cmp_op} {val}{nan_suffix}) {{ + {val} = {value}; + {idx_val} = {idx_var.name}; + }} + """) + return self.cse.generate( + self.stores, + f"c10::metal::threadgroup_{reduction_type}({data_acc_buf}, {idx_acc_buf}, " + f"{val}, {idx_val}, {reduction_idx}, {acc_buf_size_str})", + dtype=dtype, + ) + if reduction_type == "welford_reduce": + if not self.multistage_reduction_entry: + acc_buf = self._new_idxvar(src_dtype, acc_buf_size) + self.compute.splice(f"{acc_buf}[{reduction_idx}] = {value};") + wf_res = self.cse.generate( + self.compute, + f"c10::metal::threadgroup_{reduction_type}({acc_buf}, {acc_buf_size_str})", + dtype=torch.float32, + ) + return _unwrap_helper(wf_res) + acc_buf = self._new_idxvar("float3", acc_buf_size) + acc_thread_var = f"{acc_buf}[{reduction_idx}]" + self.indexing_code.splice(f"{acc_thread_var} = 0.0;") + self.compute.writeline( + f"{acc_thread_var} = ::c10::metal::welford_combine({acc_thread_var}, float3({value}, 0.0, 1.0));" + ) + wf_res = self.cse.generate( + self.stores, + f"c10::metal::threadgroup_welford_combine({acc_buf}, {acc_buf_size})", + dtype=torch.float32, + ) + return _unwrap_helper(wf_res) + if reduction_type == "welford_combine": + assert isinstance(value, tuple), "Input to welford combine must be tuple" + acc_buf = self._new_idxvar("float3", acc_buf_size) + acc_thread_var = f"{acc_buf}[{reduction_idx}]" + inp_value = f"float3({value[0]}, {value[1]}, {value[2]})" + self.indexing_code.splice(f"{acc_thread_var} = 0.0;") + if self.multistage_reduction_entry: + self.indexing_code.splice(f"{acc_thread_var} = 0.0;") + self.compute.writeline( + f"{acc_thread_var} = ::c10::metal::welford_combine({acc_thread_var}, {inp_value});" + ) + else: + self.compute.writeline(f"{acc_thread_var} = {inp_value};") + wf_res = self.cse.generate( + self.stores if self.multistage_reduction_entry else self.compute, + f"c10::metal::threadgroup_{reduction_type}({acc_buf}, {acc_buf_size_str})", + dtype=torch.float32, + ) + return _unwrap_helper(wf_res) + raise NotImplementedError(reduction_type) + + def codegen_iteration_ranges_entry(self, entry: IterationRangesEntry) -> None: + index_expr = self.rename_indexing(entry.expr) + index_str = self.sexpr(index_expr) # type: ignore[misc] + + # pyrefly: ignore [missing-argument] + if not entry.is_reduction or ( + isinstance(entry.root.numel, sympy.Integer) + and entry.root.numel <= self.max_threadgroup_size + ): + self.indexing_code.writeline( + f"{self.index_dtype} {entry.name} = {index_str};" + ) + return + + acc_size = ( + entry.root.numel + if isinstance(entry.root.numel, sympy.Integer) + else sympy.Symbol(f"{entry.root.prefix}numel", integer=True, positive=True) + ) + + self.multistage_reduction_entry.append(entry) + # When reducing the tensor whose size exceeds max threadgroup size + # loop over extra indices per reduction thread and perform part of the operation + # using values in the shared memory + + # Use floats so that it doesn't do integer division + loop_size = (acc_size + float(self.max_threadgroup_size - 1)) // float( + self.max_threadgroup_size + ) + loop_size_str = self.sexpr(loop_size) + + self.body.writeline( + f"for(auto {entry.name}_cnt = 0; {entry.name}_cnt < {loop_size_str}; ++{entry.name}_cnt) {{" + ) + with self.body.indent(): + if isinstance(acc_size, sympy.Symbol): + self.body.writeline( + f"{self.index_dtype} {entry.name} = {self.max_threadgroup_size} * {entry.name}_cnt + {index_str};" + ) + else: + self.body.writeline( + f"{self.index_dtype} {entry.name} = {loop_size_str} * {index_str} + {entry.name}_cnt;" + ) + + # Check that reduction is performed only within tensor boundary + if ( + isinstance(acc_size, sympy.Symbol) + or loop_size * self.max_threadgroup_size != acc_size + ): + self.body.writeline(f"if ({entry.name} >= {acc_size}) break;") + + def codegen_body(self) -> None: + """ + Concat output code from index_code, loads, compute, stores, + suffix into self.body. + + For pointwise kernels, this is called just once at the end. + + For reduction kernels, this generates a loop over the reduction + axis. + """ + if self.multistage_reduction_entry: + with self.body.indent(): + self.body.splice(self.loads) + self.body.splice(self.compute) + self.body.writeline("}" * len(self.multistage_reduction_entry)) + # Invalidate variables instantiated inside loop + # But results of reduction alive. Reduction cache values can be + # either CSEVariable or tuple of CSEVariables, in which case all + # variables in the tuple must be preserved + self.cse.invalidate( + OrderedSet( + v + for item in self.cse.reduction_cache.values() + for v in (item if isinstance(item, tuple) else (item,)) + ) + ) + # And loop codegen + while self.multistage_reduction_entry: + self.multistage_reduction_entry.pop().cache_clear() + else: + self.body.splice(self.loads) + self.body.splice(self.compute) + self.body.splice(self.stores) + self.loads.clear() + self.compute.clear() + self.stores.clear() + + def codegen_kernel(self, name: Optional[str] = None) -> str: + """Called at the end to generate a final kernel string""" + self.codegen_body() + code = IndentedBuffer() + + if V.graph.cpp_wrapper: + code.writeline('(R"MTL(') + else: + code.writeline("compile_mps_shader('''") + + idx_vars = self.active_range_trees() + with code.indent(): + if not V.graph.cpp_wrapper: + for header in self.headers: + code.writeline(f"#include ") + else: + headers = [ + f"#include " for header in self.headers + ] + header_contents = _embed_headers( + headers, + [Path(__file__).parent.parent.parent / "include"], + OrderedSet(), # type: ignore[arg-type] + ) + code.writeline(header_contents) + + if self.inside_reduction: + total_reduction_size = math.prod( + t.numel + for t in self.range_trees + # pyrefly: ignore [missing-argument] + if t.is_reduction + ) + # If using dynamic shapes, set the threadgroup size to be the + # max possible size + threadgroup_size = ( + min(total_reduction_size, self.max_threadgroup_size) + if isinstance(total_reduction_size, sympy.Integer) + else self.max_threadgroup_size + ) + code.writeline( + f"[[max_total_threads_per_threadgroup({threadgroup_size})]]" + ) + code.writeline("kernel void generated_kernel(") + with code.indent(): + for outer, inner in self.args.output_buffers.items(): + if outer in self.removed_buffers: + continue + dtype_str = self.dtype_to_str(V.graph.get_dtype(outer)) + code.writeline(f"device {dtype_str}* {inner},") + for outer, inner in self.args.input_buffers.items(): + dtype = V.graph.get_dtype(outer) + # MPS does not support float64, but scalar inputs are fine + if dtype == torch.float64: + outer_buf = V.graph.try_get_buffer(outer) + if outer_buf is None or outer_buf.get_size() != []: + raise RuntimeError("float64 is not supported by MPS") + dtype_str = "float" + else: + dtype_str = self.dtype_to_str(dtype) + code.writeline(f"constant {dtype_str}* {inner},") + for inner in self.args.sizevars.values(): + code.writeline(f"constant long& {inner},") + + # Write dynamic values as inputs + for idx_var in idx_vars: + if isinstance(idx_var.numel, sympy.Integer): + pass + else: + code.writeline(f"constant long& {idx_var.prefix}numel,") + + assert len(idx_vars) < 4, "Up to 3 index variables are supported" + thread_pos_dtype = ( + f"uint{len(idx_vars)}" if len(idx_vars) > 1 else "uint" + ) + thread_pos_var_name = ( + idx_vars[0].name if len(idx_vars) == 1 else "thread_pos" + ) + thread_pos_suffix = "," if self.inside_reduction else "" + code.writeline( + f"{thread_pos_dtype} {thread_pos_var_name} [[thread_position_in_grid]]{thread_pos_suffix}" + ) + if self.inside_reduction: + code.writeline( + f"{thread_pos_dtype} group_pos [[thread_position_in_threadgroup]]" + ) + code.writeline(") {") + with code.indent(): + if len(idx_vars) > 1: + for idx, var in enumerate(idx_vars): + code.writeline( + f"auto {var.name} = thread_pos.{chr(120 + idx)};" + ) + code.splice(self.indexing_code) + code.splice(self.body) + code.writeline("}") + + if V.graph.cpp_wrapper: + code.writeline(')MTL");') + else: + code.writeline("''')") + + return code.getvalue() + + def call_kernel( + self, name: str, node: Any = None, deallocate_ws: bool = True + ) -> None: + """ + Codegens a call to this kernel + """ + wrapper = V.graph.wrapper_code + # Make sure sizevars has been computed + for v in self.args.sizevars: + wrapper.ensure_size_computed(v) + + _, call_args, _, arg_types = self.args.python_argdefs() + arg_name_to_type = { + str(call_arg): arg_type for call_arg, arg_type in zip(call_args, arg_types) + } + + args = [*self.args.output_buffers.keys(), *self.args.input_buffers.keys()] + args = [arg for arg in args if arg not in self.removed_buffers] + args += [str(v) for v in self.args.sizevars] + arg_types = [arg_name_to_type[arg] for arg in args] + + # Add any dynamic ints as inputs + for tree in self.range_trees: + if isinstance(tree.numel, (sympy.Integer, int)): + # Don't need to pass in integers as inputs + continue + elif isinstance(tree.numel, sympy.Symbol): + expr = tree.numel + else: + expr = V.graph.wrapper_code.generate_numel_expr(name, tree).inner + + # pyrefly: ignore [missing-argument] + if not tree.is_reduction or self.inside_reduction: + args.append(str(expr)) + arg_types.append(int) + + expr_printer = self.cexpr if V.graph.cpp_wrapper else self.pexpr + + def format_threads(threads: list[str], kwarg: str) -> str: + if V.graph.cpp_wrapper: + threads = [f"static_cast({t})" for t in threads] + return f"{{{', '.join(threads)}}}" + else: + return f"{kwarg}=[{', '.join(threads)}]" + + # For reduction kernels, limit the maximum size over reduction dimensions to + # a maximum threadgroup size + if len(self.active_range_trees()) > 0: + threads = [ + expr_printer( + sympy.Min(v.numel, self.max_threadgroup_size) # type: ignore[misc] + # pyrefly: ignore [missing-argument] + if v.is_reduction + else v.numel + ) + for v in self.active_range_trees() + ] + + args.append(format_threads(threads, "threads")) + arg_types.append(list) + else: + if V.graph.cpp_wrapper: + raise RuntimeError("We should always have threads?") + + if self.inside_reduction: + threads = [ + expr_printer(sympy.Min(v.numel, self.max_threadgroup_size)) # type: ignore[misc] + # pyrefly: ignore [missing-argument] + if v.is_reduction + else "1" + for v in self.active_range_trees() + ] + args.append(format_threads(threads, "group_size")) + arg_types.append(list) + else: + if V.graph.cpp_wrapper: + # Add a None so that we always have a group_size in the + # arguments. We won't use it if the value is None. + args += [None] # type: ignore[list-item] + arg_types.append(None) + + wrapper.generate_kernel_call( + name, + args, + device=torch.device("mps"), + triton=False, + arg_types=arg_types, + ) + + def check_bounds( + self, expr: sympy.Expr, size: sympy.Expr, lower: bool, upper: bool + ) -> None: + if not (lower or upper): + return + # TODO(malfet): support asserts + # See https://github.com/pytorch/pytorch/issues/144634 + expr_str = self.index_to_str(expr) + lower_expr = f"{expr_str} < 0" if lower else "" + # TODO(malfet): Is upper bound inclusive or exclusive? + upper_expr = f"{expr_str} > {self.index_to_str(size)}" if upper else "" + if lower and upper: + line = f"if (({lower_expr}) && ({upper_expr})) return" + else: + line = f"if ({lower_expr}{upper_expr}) return" + self.cse.generate(self.compute, line, assignment=False) + + +class MetalScheduling(SIMDScheduling): + kernel_type = MetalKernel # type: ignore[assignment] + + def __init__(self, scheduler: Optional[Scheduler]) -> None: + super().__init__(scheduler) + wrapper = V.graph.wrapper_code + if wrapper is not None: + if not V.graph.cpp_wrapper: + wrapper.header.splice( + "from torch._inductor.runtime.runtime_utils import compile_mps_shader" + ) + + def define_kernel( + self, src_code: str, node_schedule: list[SchedulerNode], kernel: MetalKernel + ) -> str: + wrapper = V.graph.wrapper_code + if src_code in wrapper.src_to_kernel: + kernel_name = wrapper.src_to_kernel[src_code] + else: + # TODO: Merge multiple kernels into a single library + # Either using MultiKernel concept or overriding SIMDScheduling.codegen_node_scheduling + mps_lib_name = f"mps_lib_{wrapper.next_kernel_suffix()}" + + kernel_name = f"{mps_lib_name}" + wrapper.src_to_kernel[src_code] = kernel_name + + if V.graph.cpp_wrapper: + # For shimified version, generate source constant instead of direct instantiation + src_code = f"const char* {mps_lib_name}_source = " + src_code + + origins, detailed_origins = get_kernel_metadata(node_schedule, wrapper) + metadata_comment = f"{origins}\n{detailed_origins}" + wrapper.define_kernel(mps_lib_name, src_code, metadata_comment, gpu=False) + + return kernel_name diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/mps_device_op_overrides.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/mps_device_op_overrides.py new file mode 100644 index 0000000000000000000000000000000000000000..8b4ddb163ef4f9957e1a64a4ab25ec865e8206b5 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/mps_device_op_overrides.py @@ -0,0 +1,24 @@ +from __future__ import annotations + +from .common import DeviceOpOverrides, register_device_op_overrides + + +class MPSDeviceOpOverrides(DeviceOpOverrides): + def device_guard(self, device_idx: int) -> str: + assert device_idx == 0 + return "torch._ops.contextlib.nullcontext()" + + def set_device(self, device_idx: int) -> str: + assert device_idx == 0 + return "pass # MPS set device" + + def kernel_driver(self) -> str: + return """ + #include + """ + + def cpp_kernel_type(self) -> str: + return "MTLFunction_t" + + +register_device_op_overrides("mps", MPSDeviceOpOverrides()) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/mtia/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/mtia/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/mtia/device_op_overrides.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/mtia/device_op_overrides.py new file mode 100644 index 0000000000000000000000000000000000000000..135bee2b8fe9226d5b69077201c0b08bfc8460a4 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/mtia/device_op_overrides.py @@ -0,0 +1,20 @@ +from __future__ import annotations + +from ..common import DeviceOpOverrides, register_device_op_overrides + + +class MTIADeviceOpOverrides(DeviceOpOverrides): + def import_get_raw_stream_as(self, name: str) -> str: + return f"from torch._C import _mtia_getCurrentRawStream as {name}" + + def set_device(self, device_idx: int) -> str: + return f"torch.mtia.set_device({device_idx})" + + def synchronize(self) -> str: + return "torch.mtia.synchronize()" + + def device_guard(self, device_idx: int) -> str: + return f"torch.mtia.device({device_idx})" + + +register_device_op_overrides("mtia", MTIADeviceOpOverrides()) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/multi_kernel.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/multi_kernel.py new file mode 100644 index 0000000000000000000000000000000000000000..094164a1f08ca8db973047a90d182fb943795b88 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/multi_kernel.py @@ -0,0 +1,612 @@ +# mypy: allow-untyped-defs +import functools +import logging +import math +import os +import pathlib +from typing import Any, Optional, Union + +from torch._inductor.ir import MultiTemplateBuffer +from torch._inductor.metrics import get_metric_table, is_metric_table_enabled +from torch.utils._ordered_set import OrderedSet + +from .. import config +from ..codecache import code_hash, CodeCacheFuture, get_path, write_atomic +from ..runtime.benchmarking import benchmarker +from ..utils import cache_on_self, IndentedBuffer +from ..virtualized import V +from .common import TensorArg, WorkspaceArg + + +log = logging.getLogger(__name__) + + +class MultiKernelState: + """ + Maintain state of multi-kernel compilation so we don't define duplicated + multi-kernel for the same set of sub-kernels. + + V.graph.wrapper_code has a reference to MultiKernelState instance. + """ + + def __init__(self): + self.subkernel_to_kernel_name = {} + self.kernel_defs = IndentedBuffer() + + def define_kernel( + self, + kernels: list[Any], + kernel_shape_keys: Optional[ + list[Union[None, tuple[tuple[int, ...], ...]]] + ] = None, + ) -> str: + """ + Previously we name the multi kernel as "multi_kernel_{kernel_names[0]}". + This has some minor issue. + + E.g. for persistent reduction https://gist.github.com/shunting314/39e7c00ff8bb2055942ed5a3255d61ca , + there are 2 flavors of non-persistent reduction: + https://gist.github.com/shunting314/056d43d35907e87efb883970b35c17d4 + and + https://gist.github.com/shunting314/02ee753b65c513c54e695626afe682bd + + The only different is cache eviction policy. + + We should name the multi-kernel differently in these 2 cases. + + kernels: + A list of kernels + kernel_shape_keys: + Specified for size-hint multi-kernels. + Each list element is a shape key, corresponding to the concrete input & output size hints each kernel was tuned for. + """ + # Prevent circular import + from ..select_algorithm import TritonTemplateKernel + + kernel_names = tuple(k.kernel_name for k in kernels) + if kernel_names in self.subkernel_to_kernel_name: + return self.subkernel_to_kernel_name[kernel_names] + + # name the multi kernel based on the first kernel + multi_kernel_name = f"multi_kernel_{len(self.subkernel_to_kernel_name)}" + self.subkernel_to_kernel_name[kernel_names] = multi_kernel_name + + if V.graph.cpp_wrapper and not config.triton.autotune_at_compile_time: + # we should not generate any python code for multi-kernel during + # the second pass of cpp-wrapper. + return multi_kernel_name + + arg_index: dict[int, list[slice]] = {} + _, call_args, _, arg_types = kernels[0].args.python_argdefs() + if isinstance(kernels[0], TritonTemplateKernel) and isinstance( + kernels[0].output_node, MultiTemplateBuffer + ): + for i, kernel in enumerate(kernels): + additional_call_args, _ = kernel.additional_call_args_and_types() + if i not in arg_index: + arg_index[i] = [] + arg_index[i].append(slice(0, len(call_args))) + arg_index[i].append( + slice( + len(call_args) + i * len(additional_call_args), + len(call_args) + (i + 1) * len(additional_call_args), + ) + ) + else: + kernels[0].add_numel_to_call_args(multi_kernel_name, call_args, arg_types) + for i in range(len(kernels)): + arg_index[i] = [slice(0, len(call_args))] + + keyed_by_sizes = kernel_shape_keys is not None + buf = self.kernel_defs + buf.writeline("") + buf.writeline("arg_index = {") + for key, slice_list in arg_index.items(): + slice_reprs = ", ".join(repr(s) for s in slice_list) + buf.writeline(f" {key}: [{slice_reprs}],") + buf.writeline("}") + + if not keyed_by_sizes: # no size hint keys, just call with list of kernels + buf.writeline( + f"{multi_kernel_name} = async_compile.multi_kernel({multi_kernel_name!r}, [" + ) + with buf.indent(): + for name in kernel_names: + buf.writeline(f"{name},") + buf.writeline("], arg_index=arg_index)") + else: # call with dict[size hint key, kernel] + assert isinstance(kernels[0], TritonTemplateKernel) + assert isinstance(kernel_shape_keys, list) + assert len(kernels) == len(kernel_shape_keys) + buf.writeline( + f"{multi_kernel_name} = async_compile.size_hint_multi_kernel({multi_kernel_name!r}, {{" + ) + with buf.indent(): + for shape_key, name in zip(kernel_shape_keys, kernel_names): + buf.writeline(f"{shape_key}: {name},") + buf.writeline("}, arg_index=arg_index)") + + if config.triton.autotune_at_compile_time: + V.graph.wrapper_code.src_to_kernel["\n".join(kernel_names)] = ( + multi_kernel_name + ) + + return multi_kernel_name + + +class MultiKernel: + """ + This class maintains the compile time state for multi kernels. + + Assume we do codegen for a MultiKernel encapsulating kernel1 and kernel2. + The generated definition for the multi-kernel will looks like: + ``` + multi_kernel_kernel1 = MultiKernelCall( + [kernel1, kernel2], multi_kernel_definition_code + ) + ``` + + Here is a concrete example: https://gist.github.com/shunting314/d9f3fb6bc6cee3dbae005825ca196d39 + """ + + def __init__(self, kernels): + assert len(kernels) >= 2 + + self.kernels = kernels + self.kernel_name = V.graph.wrapper_code.multi_kernel_state.define_kernel( + kernels + ) + + # need this since some code in inductor check if the kernel object has an args + # attribute to decide if it's a non-null kernel. + self.args = object() + + @staticmethod + def _merge_workspace_args(left: list[WorkspaceArg], right: list[WorkspaceArg]): + if left == right: + return left + result = {x.inner_name: x for x in left} + for arg in right: + if arg.inner_name in result: + result[arg.inner_name] = WorkspaceArg.maximum( + result[arg.inner_name], arg + ) + else: + result[arg.inner_name] = arg + return [*result.values()] + + @staticmethod + def merge_workspaces_inplace(kernels): + if len(kernels) < 2: + return + # All kernels must share the same workspace + workspace_args = functools.reduce( + MultiKernel._merge_workspace_args, + [kernel.args.workspace_args for kernel in kernels], + ) + for kernel in kernels: + kernel.args.workspace_args = workspace_args + return workspace_args + + def call_kernel(self, kernel_name): + """ + Collect the union of arguments from all subkernels as the arguments + for the multi-kernel. + """ + # Prevent circular import + from ..select_algorithm import TritonTemplateKernel + + assert kernel_name == self.kernel_name + V.graph.wrapper_code.write_triton_header_once() + _, call_args, _, arg_types = self.kernels[0].args.python_argdefs() + for kernel in self.kernels[1:]: + _, other_call_args, _, other_arg_types = kernel.args.python_argdefs() + assert call_args == other_call_args, (call_args, other_call_args) + assert arg_types == other_arg_types + + if V.graph.cpp_wrapper and not config.triton.autotune_at_compile_time: + # for the second pass of cpp-wrapper codegen, we should call + # the fast kernel directly + kernel_name = MultiKernelCall.lookup_choice(self.kernel_name) + + if isinstance(self.kernels[0], TritonTemplateKernel) and isinstance( + self.kernels[0].output_node, MultiTemplateBuffer + ): + # For matmuls the grid arguments are passed in as additional arguments + # to the kernel run method. These grids change based on the various + # parameters of the matmul. So we need to pass each kernel's grid into + # the multi call kernel. + multi_call_args = call_args + multi_call_arg_types = arg_types + for kernel in self.kernels: + additional_call_args, additional_arg_types = ( + kernel.additional_call_args_and_types() + ) + multi_call_args.extend(list(additional_call_args)) + multi_call_arg_types.extend(list(additional_arg_types)) + else: + # numels for all subkernels should be the same. Use kernels[0] here + self.kernels[0].add_numel_to_call_args(kernel_name, call_args, arg_types) + multi_call_args = call_args + multi_call_arg_types = arg_types + + for ws in self.kernels[0].args.workspace_args: + V.graph.wrapper_code.generate_workspace_allocation(ws) + + if V.graph.cpp_wrapper: + # We have already selected the best kernel at compile time + # so we only have one set of call args. NB: this currently + # doesn't work with MultiTemplateBuffer kernels. @bobrenjc93 + # will add it in a subsequent PR. + V.graph.wrapper_code.generate_kernel_call( + kernel_name, call_args, arg_types=arg_types + ) + else: + V.graph.wrapper_code.generate_kernel_call( + kernel_name, multi_call_args, arg_types=multi_call_arg_types + ) + + for ws in reversed(self.kernels[0].args.workspace_args): + V.graph.wrapper_code.generate_workspace_deallocation(ws) + + def codegen_nan_check(self): + wrapper = V.graph.wrapper_code + seen: OrderedSet[str] = OrderedSet() + for k in self.kernels: + _, call_args, precompile_args, _ = k.args.python_argdefs() + for arg, precompile_arg in zip(call_args, precompile_args): + if arg in seen: + continue + seen.add(arg) + if isinstance(precompile_arg, TensorArg): + line = f"assert not {arg}.isnan().any().item()" + wrapper.writeline(line) + line = f"assert not {arg}.isinf().any().item()" + wrapper.writeline(line) + + @property + def removed_buffers(self): + return OrderedSet.intersection(*[k.removed_buffers for k in self.kernels]) + + @property + def inplaced_to_remove(self): + return OrderedSet.intersection(*[k.inplaced_to_remove for k in self.kernels]) + + @property + @cache_on_self + def inplace_update_buffers(self): + """ + Make sure all kernels have the same inplace update mappings. + """ + for k in self.kernels[1:]: + assert k.inplace_update_buffers == self.kernels[0].inplace_update_buffers + return self.kernels[0].inplace_update_buffers + + def warn_mix_layout(self, kernel_name: str): + pass + + +class MultiKernelCall: + """ + This class is called at run time to actually run the kernel + """ + + def __init__(self, multi_kernel_name, kernels, arg_index): + assert len(kernels) >= 1 + self._kernels = kernels + self.multi_kernel_name = multi_kernel_name + + self.disable_cache = os.environ.get( + "TORCHINDUCTOR_DISABLE_MULTI_KERNEL_CACHE" + ) == "1" or is_metric_table_enabled("persistent_red_perf") + + self.picked_kernel = None + self.arg_index = arg_index + if config.triton.multi_kernel > 1: + # manually force a subkernel to ease perf testing + picked_by_config = config.triton.multi_kernel - 2 + assert picked_by_config < len(self._kernels) + # pyrefly: ignore [bad-assignment] + self.picked_kernel = picked_by_config + elif not self.disable_cache: + self.load_cache() + + self._recorded = False + + def cache_file_path(self): + key = code_hash( + ",".join( + [ + f"{k.fn.cache_key}{k.size_hints!r}{k.triton_meta!r}" + for k in self.kernels + ] + ) + ) + _, _, path = get_path(key, "picked_kernel") + return pathlib.Path(path) + + def load_cache(self): + assert self.picked_kernel is None + path = self.cache_file_path() + if path.exists(): + with path.open() as fd: + # pyrefly: ignore [bad-assignment] + self.picked_kernel = int(fd.read()) + # pyrefly: ignore [unsupported-operation] + assert self.picked_kernel >= 0 and self.picked_kernel < len( + self._kernels + ) + log.debug( + "Load picked kernel %d from cache file %s", self.picked_kernel, path + ) + + def store_cache(self): + assert self.picked_kernel is not None + path = self.cache_file_path() + path.parent.mkdir(parents=True, exist_ok=True) + + write_atomic(path, str(self.picked_kernel)) + log.debug("Store picked kernel %d to cache file %s", self.picked_kernel, path) + + @property + def kernels(self): + """ + Read results from future. + + This should be called after parallel compilation is done. + In case you call this before compilation is done, + it may slow down the parallel compilation. + """ + for i, kernel in enumerate(self._kernels): + if isinstance(kernel, CodeCacheFuture): + self._kernels[i] = kernel.result() + + return self._kernels + + def benchmark_sub_kernels(self, *args, **kwargs): + """ + Benchmark all the sub kernels and return the execution time + (in milliseconds) for each of time. + + Unit test may mock this method to force a specific kernel to + be picked. + """ + + def wrap_fn(kernel, index): + def inner(): + filtered_args = self._get_filtered_args(args, index) + args_clone, kwargs_clone = kernel.clone_args(*filtered_args, **kwargs) + return kernel.run(*args_clone, **kwargs_clone) + + return inner + + return [ + benchmarker.benchmark( + wrap_fn(kernel, index), + # Currently the kernel type must be a CachingAutotuner + device=kernel.device_props.type, + rep=40, + ) + for index, kernel in enumerate(self.kernels) + ] + + def _get_filtered_args(self, args, index): + """ + We pass in all arguments to all kernels into the MultiKernelCall + so when invoking a particular kernel we need to filter to only the + arguments for that specific kernel. + """ + + # This is sometimes invoked at runtime where V.graph is + # a NullHandler + if hasattr(V.graph, "cpp_wrapper") and V.graph.cpp_wrapper: + # for cpp-wrapper, we should not filter the args since + # we already have chosen a single kernel and arg set. + return args + return [item for s in self.arg_index[index] for item in args[s]] + + # record_choice and lookup_choice are helper functions for cpp-wrapper + # codegen. The first pass use record_choice to keep the choice and + # the second pass do lookup by calling lookup_choice. + # + # An alternative that reused the multi-kernel cache does not work well + # since during codegen of the second pass, it's very hard to know the + # path for the cache file. Also reading the cache file need do some IO + # which can be slower. + @staticmethod + def record_choice(multi_kernel_name: str, picked_kernel_name: str): + """ + Record the multi-kernel choice for cpp-wrapper after autotuning + + We should do nothing if this function is not called during codegen. + """ + from torch._inductor.graph import GraphLowering + + if not isinstance(V.graph, GraphLowering): + return + + if not V.graph.record_multi_kernel_choice: + return + + V.graph.multi_kernel_to_choice[multi_kernel_name] = picked_kernel_name + + @staticmethod + def lookup_choice(multi_kernel_name: str) -> str: + # this should always been done during cpp-wrapper codegen + assert ( + V.graph.record_multi_kernel_choice + and multi_kernel_name in V.graph.multi_kernel_to_choice + ) + # there should be no miss + return V.graph.multi_kernel_to_choice[multi_kernel_name] + + def run(self, *args, **kwargs): + if self.picked_kernel is None: + timings = self.benchmark_sub_kernels(*args, **kwargs) + self.picked_kernel = timings.index(min(timings)) + k0 = self.kernels[0] + log.debug( + "pick %dth sub-kernel in %s. Size hints %s. Reduction hint %s. Timings %s", + self.picked_kernel, + [k.inductor_meta.get("kernel_name") for k in self.kernels], + k0.size_hints, + k0.inductor_meta.get("reduction_hint"), + timings, + ) + get_metric_table("persistent_red_perf").add_row( + functools.partial(self._metrics_table_row, timings) + ) + + if not self.disable_cache: + self.store_cache() + + if not self._recorded: + self._recorded = True + picked_kernel_name = self.kernels[self.picked_kernel].inductor_meta.get( + "kernel_name" + ) + assert picked_kernel_name is not None + self.record_choice(self.multi_kernel_name, picked_kernel_name) + + run = self.kernels[self.picked_kernel].run # type: ignore[method-assign] + filtered_args = self._get_filtered_args(args, self.picked_kernel) + run(*filtered_args, **kwargs) + + def _metrics_table_row(self, timings): + def get_kernel_path(k): + return k.fn.fn.__code__.co_filename + + k0 = self.kernels[0] + row = { + "size_hints": k0.size_hints, + "reduction_hint": k0.inductor_meta.get("reduction_hint"), + } + max_kernels = 4 + assert len(timings) <= max_kernels + for i in range(max_kernels): + if i < len(self.kernels): + row[f"kernel{i}_path"] = get_kernel_path(self.kernels[i]) + row[f"kernel{i}_latency"] = timings[i] + else: + row[f"kernel{i}_path"] = "" + row[f"kernel{i}_latency"] = "" + return row + + +class SizeHintMultiKernel(MultiKernel): + """ + Version of multi-kernel that generates kernels based on specified size hints. + Currently only performs 1-d search over hints; doesn't perform combinatorial n-d search + if n > 1 dynamic dimensions are specified. + + e.g. matmul([s0, s1], [s1, s2]) with size-hints [64, 256] only generates 2 kernels, + based on tuning shapes ([64, 64], [64, 64]) and ([256, 256], [256, 256]) + """ + + def __init__(self, kernels): + assert isinstance(kernels, dict) and len(kernels) >= 1 + + self.kernels, self.kernel_shape_keys = [], [] + for shape_key, kernel in kernels.items(): + self.kernels.append(kernel) + self.kernel_shape_keys.append(shape_key) + self.kernel_name = V.graph.wrapper_code.multi_kernel_state.define_kernel( + self.kernels, self.kernel_shape_keys + ) + + # need this since some code in inductor check if the kernel object has an args + # attribute to decide if it's a non-null kernel. + self.args = object() + + +class SizeHintMultiKernelCall(MultiKernelCall): + """ + Runtime class for size-hint multi-kernels. + Instead of having a plain list of kernels to benchmark over, keys them by input & output shapes, + and optionally perform shape-based selection. The pre-generated kernel is chosen based on the shape keys, + with the heuristic being log2 l1 distance between the pre-generated / runtime input & output shapes. + """ + + def __init__(self, multi_kernel_name, kernels, arg_index): + super().__init__(multi_kernel_name, list(kernels.values()), arg_index) + self._kernel_hints = list(kernels.keys()) + + # Caches results for unique shapes. + self._shape_cache = {} + + def _get_shape_cache_key(self, *args, **kwargs): + """ + Generate a cache key based on tensor shapes for shape-specialized dispatch. + """ + shapes = [] + for arg in args: + if hasattr(arg, "shape"): + shapes.append(tuple(arg.shape)) + return tuple(shapes) + + def _get_cached_shape_choice(self, cache_key): + """ + Get cached kernel choice for a specific shape. + """ + return self._shape_cache.get(cache_key) + + def _cache_shape_choice(self, cache_key, kernel_idx): + """ + Cache kernel choice for a specific shape. + """ + self._shape_cache[cache_key] = kernel_idx + + def _dist_heuristic(self, k1, k2): + """ + log2 L1 distance heuristic for kernel selection. + """ + + def dist(x, y): + lx = math.log2(x) if x > 0 else -1 + ly = math.log2(y) if y > 0 else -1 + return abs(lx - ly) + + out = 0 + for s1, s2 in zip(k1, k2): + out += sum(dist(x, y) for x, y in zip(s1, s2)) + return out + + def run(self, *args, **kwargs): + cache_key = self._get_shape_cache_key(*args, **kwargs) + cached_choice = self._get_cached_shape_choice(cache_key) + if cached_choice is not None: + self.picked_kernel = cached_choice + log.debug( + "using cached shape-specialized choice %dth sub-kernel in %s. Cache key: %s", + self.picked_kernel, + [k.inductor_meta.get("kernel_name") for k in self.kernels], + cache_key, + ) + else: + self._select_kernel_by_shape(*args, **kwargs) + + if not self._recorded: + self._recorded = True + picked_kernel_name = self.kernels[self.picked_kernel].inductor_meta.get( + "kernel_name" + ) + assert picked_kernel_name is not None + self.record_choice(self.multi_kernel_name, picked_kernel_name) + + run = self.kernels[self.picked_kernel].run # type: ignore[method-assign] + filtered_args = self._get_filtered_args(args, self.picked_kernel) + run(*filtered_args, **kwargs) + + def _select_kernel_by_shape(self, *args, **kwargs): + """ + Benchmark kernels for a particular shape and return the + best kernel for this shape. + """ + shape_key = self._get_shape_cache_key(*args, **kwargs) + dists = [ + self._dist_heuristic(shape_key, key) if key is not None else 2**62 + for key in self._kernel_hints + ] + # pyrefly: ignore [bad-assignment] + self.picked_kernel = dists.index(min(dists)) + self._cache_shape_choice(shape_key, self.picked_kernel) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/pallas.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/pallas.py new file mode 100644 index 0000000000000000000000000000000000000000..ca955ba5f351839209b9be5d3d1312dc69efb48f --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/pallas.py @@ -0,0 +1,1840 @@ +from __future__ import annotations + +import hashlib +import math +from typing import Any, Optional, TYPE_CHECKING, Union + +import sympy # noqa: TC002 + +import torch # noqa: TC001 +from torch.utils._ordered_set import OrderedSet +from torch.utils._pallas import has_tpu_pallas + +from .. import config +from ..runtime.runtime_utils import torch_dtype_to_jax +from ..utils import get_fused_kernel_name, get_kernel_metadata +from ..virtualized import V +from .block_analysis import BlockPatternMatcher +from .common import BackendFeature, CSEVariable, IndentedBuffer, OpOverrides +from .simd import pexpr, SIMDKernel, SIMDScheduling + + +if TYPE_CHECKING: + from collections.abc import Callable, Sequence + + from ..ir import IRNode + from ..ops_handler import ReductionType + from ..scheduler import BaseSchedulerNode + + +# Main function suffix used in generated Pallas code +MAIN_SUFFIX = "main" + +# Logger for Pallas kernel code +kernel_code_log = torch._logging.getArtifactLogger(__name__, "kernel_code") + + +class PallasKernelWrapper: + """Wrapper to provide .run() interface for Pallas kernels""" + + def __init__( + self, kernel_fn: Callable[..., Any], kernel_path: Optional[str] = None + ): + self.kernel_fn = kernel_fn + self.kernel_path = kernel_path + kernel_code_log.info("Pallas kernel path: %s", kernel_path) + + def run(self, *args, stream=None, **kwargs): + """ + Execute the Pallas kernel. + + Args: + *args: Arguments to pass to the kernel function + stream: CUDA stream to pass to the kernel function + **kwargs: Additional keyword arguments for the kernel + + Returns: + Result of the kernel execution + """ + return self.kernel_fn(*args, stream=stream, **kwargs) + + +class Unsupported(RuntimeError): + """Exception raised when an operation is not supported by the Pallas backend.""" + + +class PallasKernelOverrides(OpOverrides): + """ + Map element-wise ops to JAX/Pallas operations. + + For now, we use the default Python operators which are compatible + with JAX numpy broadcasting semantics. + """ + + @staticmethod + def sin(x: str) -> str: + return f"jnp.sin({x})" + + @staticmethod + def cos(x: str) -> str: + return f"jnp.cos({x})" + + @staticmethod + def tan(x: str) -> str: + return f"jnp.tan({x})" + + @staticmethod + def sinh(x: str) -> str: + return f"jnp.sinh({x})" + + @staticmethod + def cosh(x: str) -> str: + return f"jnp.cosh({x})" + + @staticmethod + def tanh(x: str) -> str: + return f"jnp.tanh({x})" + + @staticmethod + def asin(x: str) -> str: + return f"jnp.arcsin({x})" + + @staticmethod + def acos(x: str) -> str: + return f"jnp.arccos({x})" + + @staticmethod + def atan(x: str) -> str: + return f"jnp.arctan({x})" + + @staticmethod + def exp(x: str) -> str: + return f"jnp.exp({x})" + + @staticmethod + def exp2(x: str) -> str: + return f"jnp.exp2({x})" + + @staticmethod + def expm1(x: str) -> str: + return f"jnp.expm1({x})" + + @staticmethod + def log(x: str) -> str: + return f"jnp.log({x})" + + @staticmethod + def log10(x: str) -> str: + return f"jnp.log10({x})" + + @staticmethod + def log2(x: str) -> str: + return f"jnp.log2({x})" + + @staticmethod + def log1p(x: str) -> str: + return f"jnp.log1p({x})" + + @staticmethod + def sqrt(x: str) -> str: + return f"jnp.sqrt({x})" + + @staticmethod + def rsqrt(x: str) -> str: + return f"(1.0 / jnp.sqrt({x}))" + + @staticmethod + def abs(x: str) -> str: + return f"jnp.abs({x})" + + @staticmethod + def neg(x: str) -> str: + return f"(-{x})" + + @staticmethod + def floor(x: str) -> str: + return f"jnp.floor({x})" + + @staticmethod + def ceil(x: str) -> str: + return f"jnp.ceil({x})" + + @staticmethod + def trunc(x: str) -> str: + return f"jnp.trunc({x})" + + @staticmethod + def round(x: str) -> str: + return f"jnp.round({x})" + + @staticmethod + def sigmoid(x: str) -> str: + return f"(1.0 / (1.0 + jnp.exp(-{x})))" + + @staticmethod + def relu(x: str) -> str: + return f"jnp.maximum({x}, 0)" + + @staticmethod + def pow(a: str, b: str) -> str: + return f"jnp.power({a}, {b})" + + @staticmethod + def maximum(a: str, b: str) -> str: + return f"jnp.maximum({a}, {b})" + + @staticmethod + def minimum(a: str, b: str) -> str: + return f"jnp.minimum({a}, {b})" + + @staticmethod + def where(cond: str, a: str, b: str) -> str: + return f"jnp.where({cond}, {a}, {b})" + + @staticmethod + def to_dtype( + x: str, + dtype: torch.dtype, + src_dtype: Optional[torch.dtype] = None, + use_compute_types: bool = True, + ) -> str: + jax_dtype = torch_dtype_to_jax(dtype) + # Wrap in jnp.asarray to handle scalars from integer indexing + return f"jnp.asarray({x}).astype({jax_dtype})" + + @staticmethod + def to_dtype_bitcast(x: str, dtype: torch.dtype, src_dtype: torch.dtype) -> str: + """Bitcast a value from one dtype to another with the same size.""" + jax_dtype = torch_dtype_to_jax(dtype) + jax_src_dtype = torch_dtype_to_jax(src_dtype) + # First ensure the value is the correct source dtype, then bitcast + return f"jax.lax.bitcast_convert_type(jnp.asarray({x}).astype({jax_src_dtype}), {jax_dtype})" + + @staticmethod + def index_expr(expr: sympy.Expr, dtype: torch.dtype) -> str: + """Convert a sympy expression to a JAX array indexing expression.""" + from ..utils import get_bounds_index_expr + + idx_str = V.kernel.kexpr(V.kernel.prepare_indexing(expr)) + var = V.kernel.cse.generate( + V.kernel.compute, idx_str, bounds=get_bounds_index_expr(expr) + ) + return PallasKernelOverrides.to_dtype(var, dtype) + + @staticmethod + def constant(val, dtype: torch.dtype) -> str: + """Convert a constant value to JAX representation.""" + jax_dtype = torch_dtype_to_jax(dtype) + if dtype == torch.bool: + return "True" if val else "False" + # Handle special float values + if isinstance(val, float): + if math.isnan(val): + return "jnp.nan" + if math.isinf(val): + return "jnp.inf" if val > 0 else "-jnp.inf" + return f"jnp.array({val}, dtype={jax_dtype})" + + @staticmethod + def real(x: str) -> str: + return f"jnp.real({x})" + + @staticmethod + def imag(x: str) -> str: + return f"jnp.imag({x})" + + @staticmethod + def conj(x: str) -> str: + return f"jnp.conj({x})" + + @staticmethod + def angle(x: str) -> str: + return f"jnp.angle({x})" + + @staticmethod + def view_as_real(x: str) -> str: + """View complex tensor as real tensor with extra dimension.""" + return f"jnp.stack([jnp.real({x}), jnp.imag({x})], axis=-1)" + + @staticmethod + def view_as_complex(x: str) -> str: + """View real tensor as complex tensor.""" + return f"({x}[..., 0] + 1j * {x}[..., 1])" + + # Comparison operations + @staticmethod + def eq(a: str, b: str) -> str: + return f"({a} == {b})" + + @staticmethod + def ne(a: str, b: str) -> str: + return f"({a} != {b})" + + @staticmethod + def lt(a: str, b: str) -> str: + return f"({a} < {b})" + + @staticmethod + def le(a: str, b: str) -> str: + return f"({a} <= {b})" + + @staticmethod + def gt(a: str, b: str) -> str: + return f"({a} > {b})" + + @staticmethod + def isnan(x: str) -> str: + return f"jnp.isnan({x})" + + @staticmethod + def isinf(x: str) -> str: + return f"jnp.isinf({x})" + + @staticmethod + def isfinite(x: str) -> str: + return f"jnp.isfinite({x})" + + @staticmethod + def ge(a: str, b: str) -> str: + return f"({a} >= {b})" + + # Logical operations + @staticmethod + def logical_and(a: str, b: str) -> str: + return f"jnp.logical_and({a}, {b})" + + @staticmethod + def logical_or(a: str, b: str) -> str: + return f"jnp.logical_or({a}, {b})" + + @staticmethod + def logical_not(x: str) -> str: + return f"jnp.logical_not({x})" + + @staticmethod + def logical_xor(a: str, b: str) -> str: + return f"jnp.logical_xor({a}, {b})" + + # Math operations + @staticmethod + def atan2(a: str, b: str) -> str: + return f"jnp.arctan2({a}, {b})" + + @staticmethod + def hypot(a: str, b: str) -> str: + return f"jnp.hypot({a}, {b})" + + @staticmethod + def fmod(a: str, b: str) -> str: + return f"jnp.fmod({a}, {b})" + + @staticmethod + def remainder(a: str, b: str) -> str: + return f"jnp.remainder({a}, {b})" + + @staticmethod + def truncdiv(a: str, b: str) -> str: + # Truncated division (rounds toward zero) + # For integers: sign(a)*sign(b) * (abs(a) // abs(b)) + return f"(jnp.sign({a}) * jnp.sign({b}) * (jnp.abs({a}) // jnp.abs({b}))).astype({a}.dtype)" + + @staticmethod + def floordiv(a: str, b: str) -> str: + return f"({a} // {b})" + + @staticmethod + def clamp(x: str, min_val: str, max_val: str) -> str: + return f"jnp.clip({x}, {min_val}, {max_val})" + + @staticmethod + def clip(x: str, min_val: str, max_val: str) -> str: + return f"jnp.clip({x}, {min_val}, {max_val})" + + # Sign operations + @staticmethod + def sign(x: str) -> str: + return f"jnp.sign({x})" + + @staticmethod + def signbit(x: str) -> str: + return f"jnp.signbit({x})" + + # Special math functions + @staticmethod + def erf(x: str) -> str: + return f"jax.scipy.special.erf({x})" + + @staticmethod + def erfc(x: str) -> str: + return f"jax.scipy.special.erfc({x})" + + @staticmethod + def erfinv(x: str) -> str: + return f"jax.scipy.special.erfinv({x})" + + @staticmethod + def lgamma(x: str) -> str: + return f"jax.scipy.special.gammaln({x})" + + @staticmethod + def digamma(x: str) -> str: + return f"jax.scipy.special.digamma({x})" + + @staticmethod + def bessel_j0(x: str) -> str: + # bessel_jn requires float64 and has numerical issues at x=0 (returns NaN) + # bessel_jn(x, v=n) returns array of shape (n+1, ...) with J_0 to J_n + # Handle by: convert to float64, compute, handle x=0, convert back + # J0(0) = 1.0 + return ( + f"jnp.where({x}.astype(jnp.float64) == 0.0, 1.0, " + f"jax.scipy.special.bessel_jn({x}.astype(jnp.float64), v=0)[0])" + f".astype({x}.dtype)" + ) + + @staticmethod + def bessel_j1(x: str) -> str: + # bessel_jn requires float64 and has numerical issues at x=0 (returns NaN) + # bessel_jn(x, v=n) returns array of shape (n+1, ...) with J_0 to J_n + # Handle by: convert to float64, compute, handle x=0, convert back + # J1(0) = 0.0 + return ( + f"jnp.where({x}.astype(jnp.float64) == 0.0, 0.0, " + f"jax.scipy.special.bessel_jn({x}.astype(jnp.float64), v=1)[1])" + f".astype({x}.dtype)" + ) + + @staticmethod + def modified_bessel_i0(x: str) -> str: + # Modified Bessel function of the first kind I_0(x) + # I_0(x) = bessel_i0e(x) * exp(|x|) where bessel_i0e is the scaled version + return f"jax.lax.bessel_i0e({x}) * jnp.exp(jnp.abs({x}))" + + @staticmethod + def modified_bessel_i1(x: str) -> str: + # Modified Bessel function of the first kind I_1(x) + # I_1(x) = bessel_i1e(x) * exp(|x|) where bessel_i1e is the scaled version + return f"jax.lax.bessel_i1e({x}) * jnp.exp(jnp.abs({x}))" + + @staticmethod + def spherical_bessel_j0(x: str) -> str: + # Spherical Bessel function of the first kind j_0(x) = sin(x) / x + # Handle x=0: j_0(0) = 1 + return f"jnp.where({x} == 0.0, 1.0, jnp.sin({x}) / {x})" + + @staticmethod + def i0(x: str) -> str: + # Modified Bessel function I_0 (same as modified_bessel_i0) + return f"jax.lax.bessel_i0e({x}) * jnp.exp(jnp.abs({x}))" + + @staticmethod + def i0e(x: str) -> str: + # Exponentially scaled modified Bessel function I_0 + return f"jax.lax.bessel_i0e({x})" + + @staticmethod + def i1(x: str) -> str: + # Modified Bessel function I_1 (same as modified_bessel_i1) + return f"jax.lax.bessel_i1e({x}) * jnp.exp(jnp.abs({x}))" + + @staticmethod + def i1e(x: str) -> str: + # Exponentially scaled modified Bessel function I_1 + return f"jax.lax.bessel_i1e({x})" + + @staticmethod + def gammainc(x: str, y: str) -> str: + # Regularized lower incomplete gamma function P(a, x) + # Note: PyTorch uses gammainc(input, other) where input is a (shape param) + return f"jax.scipy.special.gammainc({x}, {y})" + + @staticmethod + def gammaincc(x: str, y: str) -> str: + # Regularized upper incomplete gamma function Q(a, x) + return f"jax.scipy.special.gammaincc({x}, {y})" + + @staticmethod + def igamma(x: str, y: str) -> str: + # Regularized lower incomplete gamma function (alias for gammainc) + return f"jax.scipy.special.gammainc({x}, {y})" + + @staticmethod + def igammac(x: str, y: str) -> str: + # Regularized upper incomplete gamma function (alias for gammaincc) + return f"jax.scipy.special.gammaincc({x}, {y})" + + @staticmethod + def polygamma(x: str, y: str) -> str: + # Polygamma function psi^(n)(x), x is order n, y is the value + # Note: JAX uses polygamma(n, x) where n is integer order + return f"jax.scipy.special.polygamma({x}.astype(jnp.int32), {y})" + + @staticmethod + def ndtri(x: str) -> str: + # Inverse of the standard normal CDF + return f"jax.scipy.special.ndtri({x})" + + @staticmethod + def zeta(x: str, y: str) -> str: + # Hurwitz zeta function zeta(x, q) = sum_{k=0}^inf 1/(k+q)^x + return f"jax.scipy.special.zeta({x}, {y})" + + @staticmethod + def xlogy(x: str, y: str) -> str: + # x * log(y), with proper handling of x=0 + return f"jax.scipy.special.xlogy({x}, {y})" + + @staticmethod + def xlog1py(x: str, y: str) -> str: + # x * log1p(y), with proper handling of x=0 + return f"jax.scipy.special.xlog1py({x}, {y})" + + @staticmethod + def chebyshev_polynomial_t(x: str, n: str) -> str: + # Chebyshev polynomial of the first kind T_n(x) + # For |x| <= 1: T_n(x) = cos(n * arccos(x)) + # For x > 1: T_n(x) = cosh(n * arccosh(x)) + # For x < -1: T_n(x) = (-1)^n * cosh(n * arccosh(-x)) + return ( + f"jnp.where(jnp.abs({x}) <= 1, " + f"jnp.cos({n} * jnp.arccos(jnp.clip({x}, -1, 1))), " + f"jnp.where({x} > 1, " + f"jnp.cosh({n} * jnp.arccosh(jnp.maximum({x}, 1.0))), " + f"((-1.0) ** {n}) * jnp.cosh({n} * jnp.arccosh(jnp.maximum(-{x}, 1.0)))))" + ) + + @staticmethod + def chebyshev_polynomial_u(x: str, n: str) -> str: + # Chebyshev polynomial of the second kind U_n(x) + # For |x| < 1: U_n(x) = sin((n+1) * arccos(x)) / sqrt(1 - x^2) + # For x = 1: U_n(1) = n+1 + # For x = -1: U_n(-1) = (-1)^n * (n+1) + # For x > 1: U_n(x) = sinh((n+1) * arccosh(x)) / sqrt(x^2 - 1) + # For x < -1: U_n(x) = (-1)^n * U_n(-x) (symmetry) + return ( + f"jnp.where(jnp.abs({x}) < 1, " + f"jnp.sin(({n} + 1) * jnp.arccos(jnp.clip({x}, -1, 1))) / " + f"jnp.sqrt(jnp.maximum(1 - {x}**2, 1e-10)), " + f"jnp.where({x} >= 1, " + f"jnp.where({x} == 1, {n} + 1.0, " + f"jnp.sinh(({n} + 1) * jnp.arccosh(jnp.maximum({x}, 1.0))) / " + f"jnp.sqrt(jnp.maximum({x}**2 - 1, 1e-10))), " + f"jnp.where({x} == -1, ((-1.0) ** {n}) * ({n} + 1.0), " + f"((-1.0) ** {n}) * jnp.sinh(({n} + 1) * jnp.arccosh(jnp.maximum(-{x}, 1.0))) / " + f"jnp.sqrt(jnp.maximum({x}**2 - 1, 1e-10)))))" + ) + + @staticmethod + def chebyshev_polynomial_v(x: str, n: str) -> str: + # Chebyshev polynomial of the third kind V_n(x) + # V_n(x) = (T_n(x) - T_{n+1}(x)) / (1 - x) for x != 1 + # V_n(1) = 1, recurrence: V_0 = 1, V_1 = 2x - 1, V_n = 2x*V_{n-1} - V_{n-2} + # Explicit: V_0 = 1, V_1 = 2x-1, V_2 = 4x^2-2x-1, V_3 = 8x^3-4x^2-4x+1 + return ( + f"jnp.where({n} == 0, jnp.ones_like({x}), " + f"jnp.where({n} == 1, 2*{x} - 1, " + f"jnp.where({n} == 2, 4*{x}**2 - 2*{x} - 1, " + f"jnp.where({n} == 3, 8*{x}**3 - 4*{x}**2 - 4*{x} + 1, " + f"jnp.where({n} == 4, 16*{x}**4 - 8*{x}**3 - 12*{x}**2 + 4*{x} + 1, " + f"jnp.where({n} == 5, 32*{x}**5 - 16*{x}**4 - 32*{x}**3 + 12*{x}**2 + 6*{x} - 1, " + f"jnp.zeros_like({x})))))))" + ) + + @staticmethod + def chebyshev_polynomial_w(x: str, n: str) -> str: + # Chebyshev polynomial of the fourth kind W_n(x) + # W_n(x) = (T_n(x) + T_{n+1}(x)) / (1 + x) for x != -1 + # W_n(-1) = (-1)^n, recurrence: W_0 = 1, W_1 = 2x + 1, W_n = 2x*W_{n-1} - W_{n-2} + # Explicit: W_0 = 1, W_1 = 2x+1, W_2 = 4x^2+2x-1, W_3 = 8x^3+4x^2-4x-1 + return ( + f"jnp.where({n} == 0, jnp.ones_like({x}), " + f"jnp.where({n} == 1, 2*{x} + 1, " + f"jnp.where({n} == 2, 4*{x}**2 + 2*{x} - 1, " + f"jnp.where({n} == 3, 8*{x}**3 + 4*{x}**2 - 4*{x} - 1, " + f"jnp.where({n} == 4, 16*{x}**4 + 8*{x}**3 - 12*{x}**2 - 4*{x} + 1, " + f"jnp.where({n} == 5, 32*{x}**5 + 16*{x}**4 - 32*{x}**3 - 12*{x}**2 + 6*{x} + 1, " + f"jnp.zeros_like({x})))))))" + ) + + @staticmethod + def shifted_chebyshev_polynomial_t(x: str, n: str) -> str: + # Shifted Chebyshev polynomial of the first kind T*_n(x) = T_n(2x - 1) + # T_n(y) where y = 2x - 1 + # Use same formula as chebyshev_polynomial_t + y = f"(2 * {x} - 1)" + return ( + f"jnp.where(jnp.abs({y}) <= 1, " + f"jnp.cos({n} * jnp.arccos(jnp.clip({y}, -1, 1))), " + f"jnp.where({y} > 1, " + f"jnp.cosh({n} * jnp.arccosh(jnp.maximum({y}, 1.0))), " + f"((-1.0) ** {n}) * jnp.cosh({n} * jnp.arccosh(jnp.maximum(-{y}, 1.0)))))" + ) + + @staticmethod + def shifted_chebyshev_polynomial_u(x: str, n: str) -> str: + # Shifted Chebyshev polynomial of the second kind U*_n(x) = U_n(2x - 1) + # Use same formula as chebyshev_polynomial_u + y = f"(2 * {x} - 1)" + return ( + f"jnp.where(jnp.abs({y}) < 1, " + f"jnp.sin(({n} + 1) * jnp.arccos(jnp.clip({y}, -1, 1))) / " + f"jnp.sqrt(jnp.maximum(1 - ({y})**2, 1e-10)), " + f"jnp.where({y} >= 1, " + f"jnp.where({y} == 1, {n} + 1.0, " + f"jnp.sinh(({n} + 1) * jnp.arccosh(jnp.maximum({y}, 1.0))) / " + f"jnp.sqrt(jnp.maximum({y}**2 - 1, 1e-10))), " + f"jnp.where({y} == -1, ((-1.0) ** {n}) * ({n} + 1.0), " + f"((-1.0) ** {n}) * jnp.sinh(({n} + 1) * jnp.arccosh(jnp.maximum(-{y}, 1.0))) / " + f"jnp.sqrt(jnp.maximum({y}**2 - 1, 1e-10)))))" + ) + + @staticmethod + def shifted_chebyshev_polynomial_v(x: str, n: str) -> str: + # Shifted Chebyshev polynomial of the third kind V*_n(x) = V_n(2x - 1) + y = f"(2 * {x} - 1)" # shifted variable + return ( + f"jnp.where({n} == 0, jnp.ones_like({x}), " + f"jnp.where({n} == 1, 2*{y} - 1, " + f"jnp.where({n} == 2, 4*{y}**2 - 2*{y} - 1, " + f"jnp.where({n} == 3, 8*{y}**3 - 4*{y}**2 - 4*{y} + 1, " + f"jnp.where({n} == 4, 16*{y}**4 - 8*{y}**3 - 12*{y}**2 + 4*{y} + 1, " + f"jnp.where({n} == 5, 32*{y}**5 - 16*{y}**4 - 32*{y}**3 + 12*{y}**2 + 6*{y} - 1, " + f"jnp.zeros_like({x})))))))" + ) + + @staticmethod + def shifted_chebyshev_polynomial_w(x: str, n: str) -> str: + # Shifted Chebyshev polynomial of the fourth kind W*_n(x) = W_n(2x - 1) + y = f"(2 * {x} - 1)" # shifted variable + return ( + f"jnp.where({n} == 0, jnp.ones_like({x}), " + f"jnp.where({n} == 1, 2*{y} + 1, " + f"jnp.where({n} == 2, 4*{y}**2 + 2*{y} - 1, " + f"jnp.where({n} == 3, 8*{y}**3 + 4*{y}**2 - 4*{y} - 1, " + f"jnp.where({n} == 4, 16*{y}**4 + 8*{y}**3 - 12*{y}**2 - 4*{y} + 1, " + f"jnp.where({n} == 5, 32*{y}**5 + 16*{y}**4 - 32*{y}**3 - 12*{y}**2 + 6*{y} + 1, " + f"jnp.zeros_like({x})))))))" + ) + + @staticmethod + def hermite_polynomial_h(x: str, n: str) -> str: + # Physicist's Hermite polynomial H_n(x) + # H_n(x) = 2^n * x^n - n*(n-1)/2 * 2^(n-2) * x^(n-2) + ... + # Use explicit formula: H_n(x) = n! * sum_{m=0}^{n//2} (-1)^m / (m! * (n-2m)!) * (2x)^(n-2m) + # For simplicity, use the relation: H_n(x) = 2^(n/2) * He_n(x * sqrt(2)) where He is probabilist's + # Actually simpler: use recurrence or closed form + # H_0 = 1, H_1 = 2x, H_2 = 4x^2 - 2, H_3 = 8x^3 - 12x + return ( + f"jnp.where({n} == 0, jnp.ones_like({x}), " + f"jnp.where({n} == 1, 2 * {x}, " + f"jnp.where({n} == 2, 4 * {x}**2 - 2, " + f"jnp.where({n} == 3, 8 * {x}**3 - 12 * {x}, " + f"jnp.where({n} == 4, 16 * {x}**4 - 48 * {x}**2 + 12, " + f"jnp.where({n} == 5, 32 * {x}**5 - 160 * {x}**3 + 120 * {x}, " + f"jnp.zeros_like({x})))))))" # Fallback for higher n + ) + + @staticmethod + def hermite_polynomial_he(x: str, n: str) -> str: + # Probabilist's Hermite polynomial He_n(x) + # He_0 = 1, He_1 = x, He_2 = x^2 - 1, He_3 = x^3 - 3x + return ( + f"jnp.where({n} == 0, jnp.ones_like({x}), " + f"jnp.where({n} == 1, {x}, " + f"jnp.where({n} == 2, {x}**2 - 1, " + f"jnp.where({n} == 3, {x}**3 - 3 * {x}, " + f"jnp.where({n} == 4, {x}**4 - 6 * {x}**2 + 3, " + f"jnp.where({n} == 5, {x}**5 - 10 * {x}**3 + 15 * {x}, " + f"jnp.zeros_like({x})))))))" # Fallback for higher n + ) + + @staticmethod + def laguerre_polynomial_l(x: str, n: str) -> str: + # Laguerre polynomial L_n(x) + # L_0 = 1, L_1 = 1 - x, L_2 = (x^2 - 4x + 2)/2, L_3 = (-x^3 + 9x^2 - 18x + 6)/6 + return ( + f"jnp.where({n} == 0, jnp.ones_like({x}), " + f"jnp.where({n} == 1, 1 - {x}, " + f"jnp.where({n} == 2, ({x}**2 - 4*{x} + 2) / 2, " + f"jnp.where({n} == 3, (-{x}**3 + 9*{x}**2 - 18*{x} + 6) / 6, " + f"jnp.where({n} == 4, ({x}**4 - 16*{x}**3 + 72*{x}**2 - 96*{x} + 24) / 24, " + f"jnp.where({n} == 5, (-{x}**5 + 25*{x}**4 - 200*{x}**3 + 600*{x}**2 - 600*{x} + 120) / 120, " + f"jnp.zeros_like({x})))))))" # Fallback for higher n + ) + + @staticmethod + def legendre_polynomial_p(x: str, n: str) -> str: + # Legendre polynomial P_n(x) + # P_0 = 1, P_1 = x, P_2 = (3x^2 - 1)/2, P_3 = (5x^3 - 3x)/2 + return ( + f"jnp.where({n} == 0, jnp.ones_like({x}), " + f"jnp.where({n} == 1, {x}, " + f"jnp.where({n} == 2, (3 * {x}**2 - 1) / 2, " + f"jnp.where({n} == 3, (5 * {x}**3 - 3 * {x}) / 2, " + f"jnp.where({n} == 4, (35 * {x}**4 - 30 * {x}**2 + 3) / 8, " + f"jnp.where({n} == 5, (63 * {x}**5 - 70 * {x}**3 + 15 * {x}) / 8, " + f"jnp.zeros_like({x})))))))" # Fallback for higher n + ) + + # Reciprocal and square + @staticmethod + def reciprocal(x: str) -> str: + return f"jnp.reciprocal({x})" + + @staticmethod + def square(x: str) -> str: + return f"jnp.square({x})" + + # Additional operations + @staticmethod + def fma(a: str, b: str, c: str) -> str: + """Fused multiply-add: a * b + c""" + return f"jnp.fma({a}, {b}, {c})" + + @staticmethod + def copysign(a: str, b: str) -> str: + return f"jnp.copysign({a}, {b})" + + @staticmethod + def nextafter(a: str, b: str) -> str: + return f"jnp.nextafter({a}, {b})" + + @staticmethod + def ldexp(a: str, b: str) -> str: + return f"jnp.ldexp({a}, {b})" + + @staticmethod + def frexp(x: str) -> str: + return f"jnp.frexp({x})" + + @staticmethod + def modf(x: str) -> str: + return f"jnp.modf({x})" + + # Bitwise operations + @staticmethod + def bitwise_and(a: str, b: str) -> str: + return f"jnp.bitwise_and({a}, {b})" + + @staticmethod + def bitwise_or(a: str, b: str) -> str: + return f"jnp.bitwise_or({a}, {b})" + + @staticmethod + def bitwise_xor(a: str, b: str) -> str: + return f"jnp.bitwise_xor({a}, {b})" + + @staticmethod + def bitwise_not(x: str) -> str: + return f"jnp.bitwise_not({x})" + + @staticmethod + def left_shift(a: str, b: str) -> str: + return f"jnp.left_shift({a}, {b})" + + @staticmethod + def right_shift(a: str, b: str) -> str: + return f"jnp.right_shift({a}, {b})" + + +class PallasKernel(SIMDKernel): + """ + Pallas kernel for elementwise operations with support for strided/scatter access. + + Strategy: + - Convert index expressions to JAX-compatible array slicing + - Load/store using indexed access: "in_ptrX[slice]" or full-array "in_ptrX[...]" + - Compute expression with Python operators (compatible with jax.numpy broadcasting) + - Generate Python code that defines a Pallas kernel and a host entrypoint. + - Use async_compile.pallas path to compile and load Python code. + + For GPU (Triton backend): + - Use masked loads/stores with power-of-2 block sizes to handle non-power-of-2 shapes + """ + + overrides = PallasKernelOverrides # type: ignore[assignment] + kexpr: Callable[[sympy.Expr], str] = pexpr # Use Python expression printer + + def __init__(self, *args, **kwargs): + super().__init__(*args, **kwargs) + # Determine device type once at initialization + device = V.graph.get_current_device_or_throw() + self.is_gpu = device.type == "cuda" + self.use_masked_ops: bool | None = None + self.tensor_masks = {} # Map tensor name to mask variable name + # Track which output param each store uses: list of (out_ptr_name, store_line) + self.store_with_output: list[tuple[str, str]] = [] + # Track load index expressions for argmax/argmin axis detection + self.load_index_exprs: dict[str, sympy.Expr] = {} + + def check_bounds( + self, expr: sympy.Expr, size: sympy.Expr, lower: bool, upper: bool + ) -> None: + """Check array bounds for indirect indexing.""" + # For now, skip explicit bounds checking as JAX/Pallas handles this internally + # TODO: Implement explicit bounds checking with assertions if needed + + def _get_index_str(self, index: sympy.Expr) -> str: + """ + Convert an index expression to a string suitable for Pallas indexing. + + Pallas operates on full arrays, so we need to convert index expressions + to JAX array slicing. For example: + - x0 -> "..." (contiguous access, full array) + - 2*x0 -> "::2" (strided access with stride 2) + - 2*x0 + 1 -> "1::2" (strided access with offset 1, stride 2) + + Args: + index: The indexing expression to convert + + Returns: + The indexing string to use in generated code + """ + # Prepare and simplify the index + prepared_index = self.prepare_indexing(index) + + # For simple single-symbol access (contiguous case), we can use [...] + # which is more efficient as it operates on the entire array at once + if isinstance(prepared_index, sympy.Symbol): + return "..." + elif prepared_index.is_Integer: + # Scalar index + return str(prepared_index) + else: + # Complex expression (strided/scatter access) + # Try to extract stride and offset for common patterns + return self._convert_to_jax_slice(prepared_index) + + def _convert_to_jax_slice(self, index: sympy.Expr) -> str: + """ + Convert a sympy index expression to JAX slice notation. + + Handles common patterns like: + - stride*var -> ::stride + - stride*var + offset -> offset::stride + + For more complex patterns, falls back to explicit indexing. + Uses BlockPatternMatcher for robust pattern matching. + """ + # Get the iteration variables for this kernel + if not self.range_trees: + return "..." + + # Simplify the index + index = V.graph.sizevars.simplify(index) + free_symbols = index.free_symbols + + # Get iteration variables from range_tree_nodes + iter_vars = OrderedSet(self.range_tree_nodes.keys()) + + # Find which iteration variable(s) are used + used_vars = free_symbols & iter_vars + + if len(used_vars) == 0: + # No iteration variables, this is a constant index + return str(index) + elif len(used_vars) == 1: + # Single iteration variable - try to extract stride and offset using BlockPatternMatcher + var = next(iter(used_vars)) + + # Get the subexpression involving this variable + var_expr = BlockPatternMatcher.get_subexpr_involving_symbol(index, var) + + # Try to match affine pattern: stride * var + stride = BlockPatternMatcher.match_affine_block_expr(var_expr, var) + + if stride is not None: + # Extract the constant offset (terms not involving var) + offset = index - var_expr + offset = V.graph.sizevars.simplify(offset) + + # Generate JAX slice notation + if stride == 1 and offset == 0: + # Contiguous access + return "..." + elif offset == 0: + # Pure stride: ::stride + stride_str = self.kexpr(stride) + return f"::{stride_str}" + else: + # Offset + stride: offset::stride + offset_str = self.kexpr(offset) + stride_str = self.kexpr(stride) + return f"{offset_str}::{stride_str}" + else: + # Couldn't match affine pattern, fall back to original logic + offset = index - var_expr + offset = V.graph.sizevars.simplify(offset) + if offset == 0 and var_expr == var: + # Just the variable itself, unit stride + return "..." + elif len(used_vars) > 1: + # Multi-dimensional indexing + # For contiguous multi-dim access, all terms should have unit stride + all_unit_stride = True + for var in used_vars: + var_expr = BlockPatternMatcher.get_subexpr_involving_symbol(index, var) + stride = BlockPatternMatcher.match_affine_block_expr(var_expr, var) + if stride != 1: + all_unit_stride = False + break + + if all_unit_stride: + # Contiguous multi-dimensional access + return "..." + else: + # Strided multi-dimensional access - requires advanced indexing + # For now, use ellipsis which may work for many cases + # TODO: Implement proper multi-dimensional strided indexing + return "..." + + # For complex cases, raise an error + return self._generate_index_array(index) + + def _generate_index_array(self, index: sympy.Expr) -> str: + """ + Generate JAX code to compute an index array for complex indexing patterns. + + For very complex patterns that can't be expressed as simple slices, + we need to compute the indices explicitly. This is not yet fully implemented. + """ + # For now, raise an error for complex patterns + # TODO: Implement advanced indexing support + raise Unsupported( + f"Pallas backend does not yet support complex indexing pattern: {index}" + ) + + def _has_iteration_vars(self, index: sympy.Expr) -> bool: + """Check if index expression contains iteration variables (x0, x1, etc.).""" + free_symbols = index.free_symbols + iter_vars = OrderedSet(self.range_tree_nodes.keys()) + return bool(free_symbols & iter_vars) + + def _has_indirect_vars(self, index: sympy.Expr) -> bool: + """Check if index expression contains indirect variables (tmp0, tmp1, etc.).""" + free_symbols = index.free_symbols + for sym in free_symbols: + if str(sym).startswith("tmp"): + return True + return False + + def _get_index_expr(self, index: sympy.Expr) -> tuple[str, bool]: + """ + Get the index expression string and whether it needs flattening. + + Returns: + Tuple of (index_str, needs_flatten) where needs_flatten indicates + if the buffer should be flattened before indexing (for mixed indexing). + """ + has_indirect = self._has_indirect_vars(index) + has_iter_vars = self._has_iteration_vars(index) + + if has_indirect and has_iter_vars: + return self._handle_mixed_indexing(index), True + elif has_indirect: + return self.kexpr(index), False + else: + return self._get_index_str(index), False + + def _determine_masked_ops_for_kernel(self) -> bool: + """ + Determine if we should use masked ops for this entire kernel. + + Masked ops with pl.ds(block_size) flatten tensors to 1D, which works when: + 1. We're on GPU (CUDA backend uses Triton which requires power-of-2 sizes) + 2. All tensors are already 1D (so flattening doesn't change dimensionality) + 3. All tensors have the same size (so broadcasting works correctly) + + With per-tensor masks, each tensor gets its own mask based on its size. + + This should be called once in codegen_kernel() before generating the kernel body. + """ + if not self.is_gpu: + return False + + # Get all buffer sizes + # We need ALL buffers - inputs, outputs, and intermediates + all_buffer_names = OrderedSet() + + # Get input buffers from args + all_buffer_names.update(self.args.input_buffers.keys()) + # Get output buffers from args + all_buffer_names.update(self.args.output_buffers.keys()) + # Also get any intermediate buffers from the graph + all_buffer_names.update(V.graph.name_to_buffer.keys()) + + # Get shapes and sizes for all buffers + buf_info = [] + for buf_name in all_buffer_names: + try: + buf = V.graph.get_buffer(buf_name) + size = buf.get_size() + shape = tuple(int(s) if hasattr(s, "__int__") else s for s in size) + # Calculate flattened size + total_size = 1 + for s in size: + if hasattr(s, "__int__"): + total_size *= int(s) + else: + total_size *= s + buf_info.append((buf_name, shape, total_size)) + except Exception: + pass + + # Only use masked ops if: + # 1. All buffers are 1D (single-element shape tuples) + # 2. All buffers have the same size + # This ensures that pl.ds(block_size) flattening works correctly + # and masks can be properly applied without broadcasting issues. + if buf_info and len(buf_info) > 0: + # Check if all are 1D + all_1d = all(len(shape) == 1 for _, shape, _ in buf_info) + if not all_1d: + return False + + # Check if all have the same size + first_size = buf_info[0][2] + all_same_size = all(size == first_size for _, _, size in buf_info) + return all_same_size + + return False + + def _get_or_create_mask(self, buf_name: str) -> str: + """Get or create a unique mask variable for a buffer.""" + if buf_name not in self.tensor_masks: + mask_var = f"mask_{buf_name}" + self.tensor_masks[buf_name] = mask_var + return self.tensor_masks[buf_name] + + def load(self, name: str, index: sympy.Expr) -> CSEVariable: # type: ignore[override] + buf = self.args.input(name) + dtype = V.graph.get_dtype(name) + + # Track the load index expression for argmax/argmin axis detection + self.load_index_exprs[name] = index + + # Determine masked ops strategy on first load/store if not yet determined + if self.use_masked_ops is None: + self.use_masked_ops = self._determine_masked_ops_for_kernel() + + index_str, needs_flatten = self._get_index_expr(index) + + # Build load expression using string concatenation + use_masked = index_str == "..." and not needs_flatten and self.use_masked_ops + + if use_masked: + # GPU masked load: flatten tensor and apply per-tensor mask + mask_var = self._get_or_create_mask(name) + load_expr = f"pltriton.load({buf}.at[pl.ds(block_size)], mask={mask_var})" + elif needs_flatten: + # Flatten then index for non-contiguous access + load_expr = f"{buf}[...].flatten()[{index_str}]" + else: + # Direct indexing for contiguous access + load_expr = f"{buf}[{index_str}]" + + return self.cse.generate( + self.compute, + load_expr, + dtype=dtype, + ) + + def _handle_mixed_indexing(self, index: sympy.Expr) -> str: + """ + Handle indexing with both indirect variables and iteration variables. + + For example, x[indices, :] generates index = i0 + stride * tmp0 + where tmp0 is loaded from indices and i0 is the iteration variable. + + We need to convert this to JAX advanced indexing with proper broadcasting. + When there are multiple iteration variables, they need different shapes + to form an outer product (grid) rather than broadcasting together. + """ + # Get iteration variables + iter_vars = OrderedSet(self.range_tree_nodes.keys()) + free_symbols = index.free_symbols + used_iter_vars_set = free_symbols & iter_vars + + if len(used_iter_vars_set) == 0: + return self.kexpr(index) + + # Sort iteration variables by their coefficient (stride) in the index expression. + # Variables with larger strides correspond to earlier output dimensions. + def get_coefficient(var): + """Extract the coefficient of a variable in the index expression.""" + coeff = index.coeff(var) + if coeff == 0: + # Variable appears in a more complex form, try differentiation + coeff = sympy.diff(index, var) + # Convert to int if possible for sorting + try: + return int(coeff) + except (TypeError, ValueError): + return 0 + + used_iter_vars = sorted(used_iter_vars_set, key=get_coefficient, reverse=True) + iter_coeffs = [get_coefficient(var) for var in used_iter_vars] + + index_str = self.kexpr(index) + indirect_var_syms = [s for s in free_symbols if str(s).startswith("tmp")] + indirect_vars = [str(sym) for sym in indirect_var_syms] + + # Get coefficients for indirect vars to determine output ordering + indirect_coeffs = {str(s): get_coefficient(s) for s in indirect_var_syms} + + # Build a sorted list of all components by coefficient (descending) + # Each component is (coeff, type, var) where type is 'iter' or 'indirect' + all_components = [] + for var in used_iter_vars: + all_components.append((get_coefficient(var), "iter", var)) + for sym in indirect_var_syms: + all_components.append((get_coefficient(sym), "indirect", sym)) + all_components.sort(key=lambda x: x[0], reverse=True) + + # Calculate trailing dims needed for each component + # Each component needs trailing dims for all subsequent iter vars + # plus trailing dims for all dimensions of subsequent indirect vars + # For simplicity, assume each indirect var contributes some dimensions + # that will be handled by the reshape at store time + + # For iter vars, we need to count how many dimensions come after in the output + for i, var in enumerate(used_iter_vars): + var_name = str(var) + if var in self.range_tree_nodes: + range_entry = self.range_tree_nodes[var] + range_size = range_entry.length + var_coeff = get_coefficient(var) + + arange_expr = f"jnp.arange({self.kexpr(range_size)})" + + # Count trailing dims needed: + # - One for each subsequent iter var (with smaller coeff) + # - One for each dimension of indirect vars with smaller coeff + # For indirect vars, assume each contributes 2 dims (common case) + # The actual reshape at store time will fix any shape mismatches + n_trailing_iter = sum(1 for c in iter_coeffs if c < var_coeff) + n_trailing_indirect = sum( + 2 for c in indirect_coeffs.values() if c < var_coeff + ) + n_trailing = n_trailing_iter + n_trailing_indirect + + if n_trailing > 0: + trailing_dims = ", None" * n_trailing + arange_expr = f"{arange_expr}[:{trailing_dims}]" + + index_str = index_str.replace(var_name, arange_expr) + + # Reshape indirect variables for proper broadcasting. + for indirect_var in indirect_vars: + indirect_coeff = indirect_coeffs[indirect_var] + + # Count dims needed before and after this indirect var + n_leading = sum(1 for c in iter_coeffs if c > indirect_coeff) + n_trailing = sum(1 for c in iter_coeffs if c < indirect_coeff) + + # Build the indexing expression with leading Nones, ellipsis, trailing Nones + if n_leading > 0 and n_trailing > 0: + leading_nones = "None, " * n_leading + trailing_nones = ", None" * n_trailing + reshape_expr = f"{indirect_var}[{leading_nones}...{trailing_nones}]" + elif n_leading > 0: + leading_nones = "None, " * n_leading + reshape_expr = f"{indirect_var}[{leading_nones}...]" + elif n_trailing > 0: + trailing_nones = ", None" * n_trailing + reshape_expr = f"{indirect_var}[...{trailing_nones}]" + else: + reshape_expr = indirect_var + + index_str = index_str.replace(indirect_var, reshape_expr) + + return index_str + + def store( + self, name: str, index: sympy.Expr, value: CSEVariable, mode: Any = None + ) -> None: # type: ignore[override] + if mode is not None: + raise Unsupported("pallas store mode not supported") + out = self.args.output(name) + self.store_buffer_names.add(name) + + # Determine masked ops strategy on first load/store if not yet determined + if self.use_masked_ops is None: + self.use_masked_ops = self._determine_masked_ops_for_kernel() + + # Check if this is a scalar output (reduction to scalar) + # Only shape () is a true scalar, not (1,) which is a 1-element tensor + try: + buf = V.graph.get_buffer(name) + output_shape = buf.get_size() + is_scalar = len(output_shape) == 0 + except Exception: + output_shape = () + is_scalar = False + + if is_scalar: + # For scalar outputs, use [...] to assign the entire scalar + store_expr = f"{out}[...] = {value}" + else: + index_str, needs_flatten = self._get_index_expr(index) + + # Build store expression using string concatenation + use_masked = ( + index_str == "..." and not needs_flatten and self.use_masked_ops + ) + + if use_masked: + # GPU masked store: flatten tensor and apply per-tensor mask + mask_var = self._get_or_create_mask(name) + store_expr = f"pltriton.store({out}.at[pl.ds(block_size)], {value}, mask={mask_var})" + elif index_str == "...": + # When storing the full array, reshape to match the output shape. + # This handles: + # - Mixed indexing producing flat results needing reshape + # - Squeeze operations where value has more dims than output + # - If shapes already match, reshape is a no-op. + # Use the output array's shape at runtime to avoid issues with + # symbolic sizes not being defined in the kernel. + store_expr = f"{out}[...] = {value}.reshape({out}.shape)" + else: + # Direct indexed assignment + store_expr = f"{out}[{index_str}] = {value}" + + self.stores.writeline(store_expr) + # Track which output param this store uses for filtering in codegen_kernel + self.store_with_output.append((out, store_expr)) + + def reduction( + self, + dtype: torch.dtype, + src_dtype: torch.dtype, + reduction_type: ReductionType, + value: Union[CSEVariable, tuple[CSEVariable, ...]], + ) -> Union[CSEVariable, tuple[CSEVariable, ...]]: # type: ignore[override] + """ + Generate code for reduction operations in JAX/Pallas. + + Reductions in Pallas work by: + 1. Loading the input data into the kernel + 2. Applying JAX reduction operations (jnp.sum, jnp.max, etc.) + 3. Storing the reduced result + + The reduction happens over the loaded block of data. + """ + assert self.inside_reduction + + if isinstance(value, tuple): + raise Unsupported( + "Tuple reductions (e.g., welford_combine) not supported in Pallas backend" + ) + + # Check if this reduction is already cached + cache_key = (src_dtype, reduction_type, value) + if cache_key in self.cse.reduction_cache: + return self.cse.reduction_cache[cache_key] + + # Map reduction types to JAX functions + reduction_ops = { + "sum": "jnp.sum", + "prod": "jnp.prod", # CPU only - not supported in Pallas GPU (Triton) backend + "max": "jnp.max", + "min": "jnp.min", + "any": "jnp.any", + "argmax": "jnp.argmax", + "argmin": "jnp.argmin", + } + + # Determine if this is a partial reduction (has pointwise dimensions) + # or a full reduction to scalar + pointwise_prefixes = OrderedSet(["x", "y", "z"]) + has_pointwise = any(p in self.numels for p in pointwise_prefixes) + + # Get the individual pointwise dimension sizes from range_tree_nodes + pointwise_sizes = [] + for var, entry in sorted( + self.range_tree_nodes.items(), key=lambda x: str(x[0]) + ): + if not entry.prefix.startswith("r"): + try: + pointwise_sizes.append(int(entry.length)) + except (TypeError, ValueError): + pointwise_sizes = None + break + + # Get the pointwise and reduction numels + pointwise_numel = 1 + for p in pointwise_prefixes: + if p in self.numels: + numel = self.numels[p] + try: + pointwise_numel *= int(numel) + except (TypeError, ValueError): + pointwise_numel = None + break + + reduction_numel = 1 + for p in self.numels: + if p.startswith("r"): + numel = self.numels[p] + try: + reduction_numel *= int(numel) + except (TypeError, ValueError): + reduction_numel = None + break + + # Count the number of pointwise and reduction dimensions + n_reduction_dims = sum( + 1 + for var, entry in self.range_tree_nodes.items() + if entry.prefix.startswith("r") + ) + + if reduction_type == "xor_sum": + if has_pointwise and pointwise_numel and reduction_numel: + reduction_expr = f"jnp.bitwise_xor.reduce({value}.reshape({pointwise_numel}, -1), axis=-1)" + else: + reduction_expr = f"jnp.bitwise_xor.reduce({value})" + elif reduction_type in ("argmax", "argmin"): + # For argmax/argmin, we need to preserve the axis information + # because the result is indices, not values. + reduction_op = reduction_ops[reduction_type] + # Check if this is a true partial reduction (pointwise numel > 1) + # When pointwise_numel == 1, it's effectively a full reduction to scalar + is_partial_reduction = ( + has_pointwise and pointwise_numel and pointwise_numel > 1 + ) + if is_partial_reduction and n_reduction_dims > 0: + # Partial reduction: determine the reduction axis from load index + # The reduction variable's coefficient in the index expression tells us its stride + # Higher stride = outer axis (lower axis number in row-major order) + reduction_axis = 0 # Default to axis 0 + if self.load_index_exprs: + # Get the first load index expression + load_index = next(iter(self.load_index_exprs.values())) + # Find the reduction variable (starts with 'r') + reduction_vars = [ + var + for var, entry in self.range_tree_nodes.items() + if entry.prefix.startswith("r") + ] + if reduction_vars: + r_var = reduction_vars[0] + # Get the coefficient (stride) of the reduction variable + r_coeff = load_index.coeff(r_var) + try: + r_stride = int(r_coeff) if r_coeff != 0 else 1 + except (TypeError, ValueError): + r_stride = 1 + # Get pointwise variable + pw_vars = [ + var + for var, entry in self.range_tree_nodes.items() + if not entry.prefix.startswith("r") + ] + if pw_vars: + pw_var = pw_vars[0] + pw_coeff = load_index.coeff(pw_var) + try: + pw_stride = int(pw_coeff) if pw_coeff != 0 else 1 + except (TypeError, ValueError): + pw_stride = 1 + # Higher stride = earlier (outer) axis + # For 2D: axis 0 has stride = dim1_size, axis 1 has stride = 1 + reduction_axis = 0 if r_stride > pw_stride else 1 + if n_reduction_dims == 1: + reduction_expr = f"{reduction_op}({value}, axis={reduction_axis})" + else: + # Multiple reduction dims - reduce over all of them + axes = tuple(range(n_reduction_dims)) + reduction_expr = f"{reduction_op}({value}, axis={axes})" + else: + # Full reduction to scalar + reduction_expr = f"{reduction_op}({value})" + elif reduction_type in reduction_ops: + if ( + has_pointwise + and pointwise_numel + and reduction_numel + and pointwise_sizes + ): + # For partial reductions, we need to: + # 1. Move pointwise axes to the front and reduction axes to the back + # 2. Reshape to (pointwise_numel, reduction_numel) + # 3. Reduce over the last axis + # + # We use moveaxis to reorder: first move axes matching pointwise sizes + # to the front, then the remaining (reduction) axes go to the back. + # Finally reshape and reduce. + # + # Generate code to dynamically determine and reorder axes: + pw_sizes_str = str(pointwise_sizes) + reduction_op = reduction_ops[reduction_type] + reduction_expr = ( + f"(lambda v: (lambda pw_sizes: " + f"{reduction_op}(v.reshape(-1, {reduction_numel}), axis=-1) " + f"if v.ndim == 2 else " + f"(lambda input_shape, pw_axes: " + f"{reduction_op}(" + f"jnp.moveaxis(v, pw_axes, list(range(len(pw_axes)))).reshape({pointwise_numel}, -1), axis=-1)" + f")(" + f"v.shape, " + f"[i for i, s in enumerate(v.shape) if s in pw_sizes][:len(pw_sizes)]" + f")" + f")({pw_sizes_str}))({value})" + ) + else: + # Full reduction to scalar + reduction_expr = f"{reduction_ops[reduction_type]}({value})" + else: + raise Unsupported( + f"Reduction type '{reduction_type}' not yet supported in Pallas backend. " + f"Supported types: {list(reduction_ops.keys())}, xor_sum" + ) + + # Generate CSE variable for the reduction result + result = self.cse.generate( + self.compute, + reduction_expr, + dtype=dtype, + ) + + # Cache the result + self.cse.reduction_cache[cache_key] = result + return result + + @staticmethod + def _buffer_is_contiguous(buffer_name: str) -> bool: + buf = V.graph.get_buffer(buffer_name) + layout = buf.get_layout() + return layout.is_contiguous() + + def codegen_kernel(self, name: Optional[str] = None) -> str: # type: ignore[override] + """ + Generate the complete Pallas kernel code as a Python string. + + This includes: + - Import statements for JAX/Pallas + - The kernel function that operates on refs + - The main wrapper function that handles PyTorch<->JAX conversions via DLPack + + Args: + name: Optional kernel name (will use placeholder if not provided) + + Returns: + str: Complete Python source code for the Pallas kernel + """ + code = IndentedBuffer() + + # Define the Pallas kernel: accepts refs, uses broadcasted expressions + arg_defs, _, _, _ = self.args.python_argdefs() + kernel_params = [a.name for a in arg_defs] + pure_out_params = [p for p in kernel_params if p.startswith("out_ptr")] + output_params = [ + p for p in kernel_params if p.startswith(("out_ptr", "in_out_ptr")) + ] + if not output_params: + raise RuntimeError("Pallas backend requires at least one output buffer") + + output_buffer_lookup = { + inner: outer + for outer, inner in self.args.output_buffers.items() + if isinstance(inner, str) + } + + kernel_name = name or "" + interpret_is_cpu = V.graph.get_current_device_or_throw().type == "cpu" + is_tpu = torch._inductor.config._debug_cpu_to_tpu_pallas + if is_tpu: + if not torch._inductor.config.pallas_take_first_jax_device_only: + raise RuntimeError( + "Pallas backend currently only supports using the first JAX device." + ) + if not has_tpu_pallas(): + raise RuntimeError( + "PALLAS_TARGET_TPU is set, but no TPU device was found. " + "Please make sure that you have a TPU available and that JAX is configured correctly." + ) + interpret_literal = "True" if interpret_is_cpu else "False" + + # For GPU (Triton backend), import pltriton for masked loads/stores + # Import math at module level if we'll use it for masked ops + imports = ( + """ + import functools + """ + + ("import math\n " if self.use_masked_ops else "") + + """import torch + import jax + import jax.numpy as jnp + from jax.experimental import pallas as pl + from torch._inductor.runtime.runtime_utils import torch_dtype_to_jax_runtime + """ + + ( + "\n from jax.experimental.pallas import triton as pltriton" + if not interpret_is_cpu + else "" + ) + + ( + "\n from torch._inductor.runtime.runtime_utils import next_power_of_2" + if self.use_masked_ops + else "" + ) + ) + code.splice(imports, strip=True) + + aliasable_flags: dict[str, bool] = {} + for param in pure_out_params: + buffer_name = output_buffer_lookup.get(param) + is_contiguous = buffer_name is not None and self._buffer_is_contiguous( + buffer_name + ) + aliasable_flags[param] = (not interpret_is_cpu) and is_contiguous + alias_params = [ + f"{param}_alias" for param in pure_out_params if aliasable_flags[param] + ] + pointer_tail = [ + p for p in kernel_params if p.startswith(("in_out_ptr", "in_ptr")) + ] + kernel_input_params = alias_params + pointer_tail + full_kernel_params = alias_params + kernel_params + non_alias_out_set = OrderedSet( + [name for name, flag in aliasable_flags.items() if not flag] + ) + copy_output_indices = [ + idx for idx, name in enumerate(output_params) if name in non_alias_out_set + ] + self.aliasable_out_ptrs = aliasable_flags + + # For GPU with masked ops, add block_size as keyword-only parameter + kernel_signature = ( + f"def {kernel_name}_kernel({', '.join(full_kernel_params)}" + + (", *, block_size" if self.use_masked_ops else "") + + "):" + ) + code.writeline(kernel_signature) + with code.indent(): + # For masked ops on GPU, generate per-tensor masks at the start + if self.use_masked_ops and self.tensor_masks: + # Create a mapping from buffer name to parameter name + buf_to_param = {} + for outer, inner in self.args.input_buffers.items(): + buf_to_param[outer] = inner if isinstance(inner, str) else outer + for outer, inner in self.args.output_buffers.items(): + buf_to_param[outer] = inner if isinstance(inner, str) else outer + + # Generate a mask for each tensor that was accessed + for buf_name, mask_var in sorted(self.tensor_masks.items()): + param_name = buf_to_param.get(buf_name, buf_name) + # Find the corresponding parameter in kernel_params + matching_param = None + for p in kernel_params: + # Check if this parameter corresponds to the buffer + if param_name == p or buf_name in str(p): + matching_param = p + break + + if matching_param: + # Calculate flattened size for this tensor + code.writeline(f"# Mask for {buf_name}") + code.writeline(f"{mask_var}_size = {matching_param}.size") + code.writeline( + f"{mask_var} = jnp.arange(block_size) < {mask_var}_size" + ) + + # Generate iteration variables as jnp.arange arrays + # These are used by index_expr operations like torch.arange + # Skip on GPU with masked ops - iteration vars would create non-power-of-2 arrays + # which are not supported by Pallas Triton backend + if self.range_tree_nodes and not self.use_masked_ops: + code.writeline("# Define iteration variables as JAX arrays") + # Get the first output buffer's shape for reshaping + first_output_shape = None + first_output_numel = None + if output_params: + first_out_param = output_params[0] + first_out_buf_name = output_buffer_lookup.get(first_out_param) + if first_out_buf_name: + try: + buf = V.graph.get_buffer(first_out_buf_name) + size = buf.get_size() + first_output_shape = tuple( + int(s) if hasattr(s, "__int__") else s for s in size + ) + first_output_numel = 1 + for s in first_output_shape: + first_output_numel *= s + except Exception: + pass + + for var_sym, entry in self.range_tree_nodes.items(): + var_name = str(var_sym) + length = entry.length + length_str = self.kexpr(length) + # If the iteration variable length matches the output numel, + # reshape it to match the output shape for proper broadcasting + try: + length_val = int(length) if hasattr(length, "__int__") else None + except (TypeError, ValueError): + length_val = None + + # Skip symbolic lengths - jnp.arange requires concrete values + # This happens with dynamic shapes + if length_val is None: + continue + + if ( + first_output_shape + and len(first_output_shape) > 1 + and length_val == first_output_numel + ): + shape_str = ", ".join(str(s) for s in first_output_shape) + code.writeline( + f"{var_name} = jnp.arange({length_str}).reshape({shape_str})" + ) + else: + code.writeline(f"{var_name} = jnp.arange({length_str})") + + # Emit compute (CSE) and store lines; they reference *_ptr[index] directly. + for line in self.compute._lines: + code.writeline(str(line)) + # Filter stores to only emit those for outputs that are in kernel params. + # This handles cases where an intermediate value was stored but the buffer + # was later optimized away (not passed to the kernel). + for out_ptr, store_line in self.store_with_output: + if out_ptr in full_kernel_params: + code.writeline(store_line) + + jit_wrapper_name = f"{kernel_name}_jit_wrapper" + donate_indices = [] + for idx, name in enumerate(kernel_input_params): + if (name in alias_params) or name.startswith("in_out_ptr"): + donate_indices.append(idx + 2) + if donate_indices: + donate_literal = "(" + ", ".join(str(x) for x in donate_indices) + ",)" + else: + donate_literal = "()" + code.writeline( + "@functools.partial(" + "jax.jit, static_argnums=(0, 1), donate_argnums=" + f"{donate_literal})" + ) + code.writeline( + f"def {jit_wrapper_name}(out_shapes, out_dtypes, {', '.join(kernel_input_params)}):" + ) + with code.indent(): + code.writeline("out_specs = tuple(") + code.writeline(" jax.ShapeDtypeStruct(shape, dtype)") + code.writeline(" for shape, dtype in zip(out_shapes, out_dtypes)") + code.writeline(")") + + # For masked ops, calculate block_size as next power of 2 of max flattened size + if self.use_masked_ops: + code.writeline( + "# Calculate block_size as next power of 2 for Triton backend" + ) + code.writeline("# Find maximum flattened size across all tensors") + code.writeline("max_size = 0") + # Calculate size for all input tensors + for param in kernel_input_params: + code.writeline(f"max_size = max(max_size, {param}.size)") + # Also consider output shapes + code.writeline("for shape in out_shapes:") + code.writeline( + " tensor_size = shape[0] if len(shape) == 1 else math.prod(shape)" + ) + code.writeline(" max_size = max(max_size, tensor_size)") + code.writeline("block_size = next_power_of_2(max_size)") + + alias_pairs: list[tuple[int, int]] = [] + for out_idx, name in enumerate(output_params): + if name.startswith("out_ptr"): + if aliasable_flags.get(name, False): + alias_name = f"{name}_alias" + input_idx = kernel_input_params.index(alias_name) + alias_pairs.append((input_idx, out_idx)) + else: + input_idx = kernel_input_params.index(name) + alias_pairs.append((input_idx, out_idx)) + alias_map_literal = ", ".join(f"{i}: {o}" for (i, o) in alias_pairs) + + # For masked ops, wrap kernel with functools.partial to pass block_size + kernel_arg = ( + f"functools.partial({kernel_name}_kernel, block_size=block_size)," + if self.use_masked_ops + else f"{kernel_name}_kernel," + ) + code.writeline("return pl.pallas_call(") + code.writeline(" " + kernel_arg) + + code.writeline(" out_shape=out_specs,") + code.writeline(f" interpret={interpret_literal},") + code.writeline(" grid=(1,),") + code.writeline( + f" input_output_aliases={{ {alias_map_literal} }}," + if alias_pairs + else " input_output_aliases={}," + ) + code.writeline(")(") + if kernel_input_params: + code.writeline(f" {', '.join(kernel_input_params)},") + code.writeline(")") + + main_name = f"{kernel_name}_main" + code.writeline( + f"def {main_name}({', '.join(full_kernel_params)}, stream=None):" + ) + with code.indent(): + code.writeline("# Enable JAX x64 mode for float64/int64 support") + code.writeline("jax.config.update('jax_enable_x64', True)") + if alias_params: + code.writeline("# Convert Torch -> JAX for donated outputs") + for alias_name in alias_params: + # TODO: The `jax.device_put` path is a temporary workaround for a Mosaic compiler bug + # that occurs with DLPack. Once TorchTPU provides a direct method for placing a + # `torch.Tensor` on a TPU device, this should be reverted to use the + # `jax.dlpack.from_dlpack` path. + if is_tpu: + code.writeline( + f"{alias_name}_jax = jax.device_put({alias_name}.cpu().numpy(), device=jax.devices('tpu')[0])" + ) + else: + code.writeline( + f"{alias_name}_jax = jax.dlpack.from_dlpack({alias_name}.detach())" + ) + code.writeline("# Convert Torch -> JAX for in-place tensors") + for ptr in pointer_tail: + if ptr.startswith("in_out_ptr"): + if is_tpu: + code.writeline( + f"{ptr}_jax = jax.device_put({ptr}.cpu().numpy(), device=jax.devices('tpu')[0])" + ) + else: + code.writeline( + f"{ptr}_jax = jax.dlpack.from_dlpack({ptr}.detach())" + ) + code.writeline("# Convert Torch -> JAX for inputs") + for ptr in pointer_tail: + if ptr.startswith("in_ptr"): + if is_tpu: + code.writeline( + f"{ptr}_jax = jax.device_put({ptr}.cpu().numpy(), device=jax.devices('tpu')[0])" + ) + else: + code.writeline( + f"{ptr}_jax = jax.dlpack.from_dlpack({ptr}.detach().contiguous())" + ) + + code.writeline("# Prepare output metadata from PyTorch tensor") + code.writeline( + "out_shapes = (" + + ", ".join([f"tuple({name}.shape)" for name in output_params]) + + ",)" + ) + code.writeline( + "out_dtypes = (" + + ", ".join( + [ + f"torch_dtype_to_jax_runtime({name}.dtype)" + for name in output_params + ] + ) + + ",)" + ) + arg_name_map: dict[str, str] = {} + for alias_name in alias_params: + arg_name_map[alias_name] = f"{alias_name}_jax" + for ptr in pointer_tail: + arg_name_map[ptr] = f"{ptr}_jax" + + if kernel_input_params: + alias_args_str = ", ".join( + arg_name_map[name] for name in kernel_input_params + ) + code.writeline( + f"res = {jit_wrapper_name}(out_shapes, out_dtypes, {alias_args_str})" + ) + else: + code.writeline(f"res = {jit_wrapper_name}(out_shapes, out_dtypes)") + if copy_output_indices: + code.writeline( + "result_values = res if isinstance(res, tuple) else (res,)" + ) + for idx in copy_output_indices: + name = output_params[idx] + if is_tpu: + code.writeline( + f"res_cpu = jax.device_get(result_values[{idx}])" + ) + code.writeline(f"{name}.copy_(torch.from_dlpack(res_cpu))") + else: + code.writeline( + f"{name}.copy_(torch.from_dlpack(result_values[{idx}]))" + ) + + return code.getvalue() + + def call_kernel(self, name: str, node: Optional[IRNode] = None) -> None: # type: ignore[override] + """Generate the Python code that calls this Pallas kernel.""" + wrapper = V.graph.wrapper_code + arg_defs, call_args, _, _ = self.args.python_argdefs() + kernel_param_names = [a.name for a in arg_defs] + pure_out_params = [p for p in kernel_param_names if p.startswith("out_ptr")] + call_arg_strs = list(map(str, call_args)) + aliasable = getattr(self, "aliasable_out_ptrs", {}) + alias_call_args = [ + call_arg_strs[kernel_param_names.index(p)] + for p in pure_out_params + if aliasable.get(p, False) + ] + + # Generate kernel call: kernel_name.run(arg1, arg2, ...) + # Note: async_compile.pallas loads {name}_main function and wraps it in PallasKernelWrapper + # which exposes a run() method + kernel_call = f"{name}.run({', '.join(alias_call_args + call_arg_strs)})" + wrapper.writeline(kernel_call) + + +class PallasScheduling(SIMDScheduling): + kernel_type = PallasKernel # type: ignore[assignment] + + @classmethod + def get_backend_features(cls, device: torch.device) -> OrderedSet[BackendFeature]: + # Pallas/JAX can handle reductions to single elements efficiently + # without requiring split reductions + return OrderedSet([BackendFeature.REDUCE_TO_SINGLE_ELEMENT]) + + def define_kernel( + self, + src_code: str, + node_schedule: Sequence[BaseSchedulerNode], + kernel: PallasKernel, + ) -> str: # type: ignore[override] + wrapper = V.graph.wrapper_code + if src_code in wrapper.src_to_kernel: + return wrapper.src_to_kernel[src_code] + + fused_name = ( + get_fused_kernel_name(node_schedule, config.triton.descriptive_names) + if config.triton.descriptive_names + else "" + ) + kernel_hash = hashlib.sha256(src_code.encode("utf-8")).hexdigest()[:8] + if fused_name == "fused": + kernel_name = f"pallas_{kernel_hash}" + else: + kernel_name = f"pallas_{fused_name}_{kernel_hash}" + wrapper.src_to_kernel[src_code] = kernel_name + + # Replace placeholder if any + src_code = src_code.replace("", kernel_name) + + compile_wrapper = IndentedBuffer() + compile_wrapper.writeline(f"async_compile.pallas({kernel_name!r}, r'''") + compile_wrapper.splice(src_code, strip=True) + compile_wrapper.writeline("''')") + + origins, detailed_origins = get_kernel_metadata(node_schedule, wrapper) + metadata_comment = f"{origins}\n{detailed_origins}" + wrapper.define_kernel(kernel_name, compile_wrapper.getvalue(), metadata_comment) + + return kernel_name diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/python_wrapper_mtia.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/python_wrapper_mtia.py new file mode 100644 index 0000000000000000000000000000000000000000..00833e1de702ca9922b41c53defc88c92fa6d350 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/python_wrapper_mtia.py @@ -0,0 +1,34 @@ +from typing import Optional +from typing_extensions import override + +from torch._inductor import ir + +from .wrapper import PythonWrapperCodegen + + +class PythonWrapperMtia(PythonWrapperCodegen): + """ + A thin wrapper of PythonWrapperCodegen with MTIA specific logic + """ + + @override + def write_header(self) -> None: + super().write_header() + + # MITA specific imports + self.imports.splice("import mtia.host_runtime.torch_mtia.dynamic_library") + + @override + @staticmethod + def create( + is_subgraph: bool, + subgraph_name: Optional[str], + parent_wrapper: Optional[PythonWrapperCodegen], + partition_signatures: Optional[ir.GraphPartitionSignature] = None, + ) -> PythonWrapperCodegen: + if is_subgraph: + # Delegate to the parent class to handle the case of subgraph + return PythonWrapperCodegen.create( + is_subgraph, subgraph_name, parent_wrapper, partition_signatures + ) + return PythonWrapperMtia() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_conv_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_conv_template.py new file mode 100644 index 0000000000000000000000000000000000000000..277b6ed3749486074a583d61f6f2909886eb60c9 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_conv_template.py @@ -0,0 +1,627 @@ +# mypy: allow-untyped-defs +import copy +import logging +import random +from typing import Any +from typing_extensions import override + +from torch._inductor.virtualized import V + +from .rocm_template import ArgInfo + + +try: + import ck4inductor # type: ignore[import] +except ImportError: + ck4inductor = None + +if ck4inductor is not None: + from ck4inductor.grouped_conv_fwd.gen_instances import ( # type: ignore[import] + gen_conv_ops_library, + ) + from ck4inductor.grouped_conv_fwd.op import ( # type: ignore[import] # noqa: TCH002 + CKGroupedConvFwdOp, + ) +else: + + def gen_conv_ops_library(): + return [] + + +from torch._inductor import config +from torch._inductor.codegen.rocm.ck_template import CKTemplate +from torch._inductor.codegen.rocm.rocm_kernel import ROCmTemplateKernel +from torch._inductor.utils import IndentedBuffer + + +log = logging.getLogger(__name__) + + +def torch_layout_to_ck_layouts(torch_layout): + # logically, torch tensors are always NCHW, + # and channels-last memory layout is visible in the strides + if V.graph.sizevars.statically_known_equals(torch_layout.stride[-1], 1): + # when input or output is NCHW + # NB: torch.conv2d result is always NCHW + return ["NGCHW", "GKCYX", "NGKHW"] + elif V.graph.sizevars.statically_known_equals(torch_layout.stride[-3], 1): + # when input or output or weight is channels-last + return ["NHWGC", "GKYXC", "NHWGK"] + else: + return None + + +def torch_layout_to_ck_input_layout(torch_layout): + if V.graph.sizevars.statically_known_equals(torch_layout.stride[-1], 1): + return "NGCHW" + elif V.graph.sizevars.statically_known_equals(torch_layout.stride[-3], 1): + return "NHWGC" + else: + return None + + +def torch_layout_to_ck_weight_layout(torch_layout): + if V.graph.sizevars.statically_known_equals(torch_layout.stride[-1], 1): + return "GKCYX" + elif V.graph.sizevars.statically_known_equals(torch_layout.stride[-3], 1): + return "GKYXC" + else: + return None + + +def torch_layout_to_ck_output_layout(torch_layout): + if V.graph.sizevars.statically_known_equals(torch_layout.stride[-1], 1): + return "NGKHW" + elif V.graph.sizevars.statically_known_equals(torch_layout.stride[-3], 1): + return "NHWGK" + else: + return None + + +class CKGroupedConvFwdTemplate(CKTemplate): + conv_template = r""" + {{headers}} + {{globals}} + {{instance_definition}} + extern "C" { + PT_EXPORT {{kernel_definition}} { + auto conv = {{instance_type}} {}; + auto invoker = conv.MakeInvoker(); + + using ck::index_t; + + constexpr index_t NumDTensor = {{n_d_tensors}}; + constexpr index_t NDimSpatial = {{n_dim_spatial}}; + const std::vector FilterSize = { FilterSize_0, FilterSize_1 }; + const std::vector InputSize = { InputSize_0, InputSize_1 }; + const std::vector ConvolutionStrides = { ConvolutionStrides_0, ConvolutionStrides_1 }; + const std::vector Dilations = { Dilations_0, Dilations_1 }; + const std::vector LeftPads = { LeftPads_0, LeftPads_1 }; + const std::vector RightPads = { RightPads_0, RightPads_1 }; + + + auto conv_param = ck::utils::conv::ConvParam { + NDimSpatial, + GroupCount, + NBatch, + NOutChannels, + NInChannels, + FilterSize, + InputSize, + ConvolutionStrides, + Dilations, + LeftPads, + RightPads, + }; + + using InLayout = ck::tensor_layout::convolution::{{input_layout}}; + using WeiLayout = ck::tensor_layout::convolution::{{weight_layout}}; + using OutLayout = ck::tensor_layout::convolution::{{output_layout}}; + + const auto in_g_n_c_wis_desc = + ck::utils::conv::make_input_host_tensor_descriptor_g_n_c_wis_packed(conv_param); + const auto wei_g_k_c_xs_desc = + ck::utils::conv::make_weight_host_tensor_descriptor_g_k_c_xs_packed(conv_param); + const auto out_g_n_k_wos_desc = + ck::utils::conv::make_output_host_tensor_descriptor_g_n_k_wos_packed(conv_param); + + const void* p_a = input; + const void* p_b = weight; + const std::array p_ds; + void* p_e = output; + std::array a_g_n_c_wis_lengths; + std::array a_g_n_c_wis_strides; + std::array b_g_k_c_xs_lengths; + std::array b_g_k_c_xs_strides; + std::array, NumDTensor> ds_g_n_k_wos_lengths; + std::array, NumDTensor> ds_g_n_k_wos_strides; + std::array e_g_n_k_wos_lengths; + std::array e_g_n_k_wos_strides; + std::array conv_filter_strides; + std::array conv_filter_dilations; + std::array input_left_pads; + std::array input_right_pads; + const auto a_element_op = PassThrough {}; + const auto b_element_op = PassThrough {}; + const auto cde_element_op = PassThrough {}; + + auto copy = [](auto& x, auto& y) { ck::ranges::copy(x, y.begin()); }; + + copy(in_g_n_c_wis_desc.GetLengths(), a_g_n_c_wis_lengths); + copy(in_g_n_c_wis_desc.GetStrides(), a_g_n_c_wis_strides); + copy(wei_g_k_c_xs_desc.GetLengths(), b_g_k_c_xs_lengths); + copy(wei_g_k_c_xs_desc.GetStrides(), b_g_k_c_xs_strides); + copy(out_g_n_k_wos_desc.GetLengths(), e_g_n_k_wos_lengths); + copy(out_g_n_k_wos_desc.GetStrides(), e_g_n_k_wos_strides); + copy(conv_param.conv_filter_strides_, conv_filter_strides); + copy(conv_param.conv_filter_dilations_, conv_filter_dilations); + copy(conv_param.input_left_pads_, input_left_pads); + copy(conv_param.input_right_pads_, input_right_pads); + + auto argument = conv.MakeArgument( + p_a, + p_b, + p_ds, + p_e, + a_g_n_c_wis_lengths, + a_g_n_c_wis_strides, + b_g_k_c_xs_lengths, + b_g_k_c_xs_strides, + ds_g_n_k_wos_lengths, + ds_g_n_k_wos_strides, + e_g_n_k_wos_lengths, + e_g_n_k_wos_strides, + conv_filter_strides, + conv_filter_dilations, + input_left_pads, + input_right_pads, + a_element_op, + b_element_op, + cde_element_op + ); + if (!conv.IsSupportedArgument(argument)) { + // we do our best to statically avoid this case in `filter_op` + std::cerr << "invalid argument for conv instance " << conv.GetTypeString() << std::endl; + argument.Print(); + return -23; + } + if (workspace_size) { + *workspace_size = conv.GetWorkSpaceSize(&argument); + return 0; + } + + if (p_a == nullptr) { + std::cerr << "p_a is nullptr" << std::endl; + return -1; + } + if (p_b == nullptr) { + std::cerr << "p_b is nullptr" << std::endl; + return -1; + } + if (p_e == nullptr) { + std::cerr << "p_e is nullptr" << std::endl; + return -1; + } + + // when debugging, do time kernel to serialize launches + auto stream_config = StreamConfig{stream, /* time kernel */ false, /* log level */ 0}; + + if (workspace != nullptr) { + conv.SetWorkSpacePointer(&argument, workspace, stream_config); + } + + // run the kernel + float elapsed_time = invoker.Run(argument, stream_config); + return 0; + } // kernel definition + } // extern C + + #ifdef GENERATE_CK_STANDALONE_RUNNER + int main(int argc, char** argv) { + (void) argc; + (void) argv; + return 0; + } + #endif // GENERATE_CK_STANDALONE_RUNNER +""" + + def globals(self) -> IndentedBuffer: + res = super().globals() + res.splice( + """ + // CK conv globals + + using NWC = ck::tensor_layout::convolution::NWC; + using NHWC = ck::tensor_layout::convolution::NHWC; + using NDHWC = ck::tensor_layout::convolution::NDHWC; + + using KXC = ck::tensor_layout::convolution::KXC; + using KYXC = ck::tensor_layout::convolution::KYXC; + using KZYXC = ck::tensor_layout::convolution::KZYXC; + + using NWK = ck::tensor_layout::convolution::NWK; + using NHWK = ck::tensor_layout::convolution::NHWK; + using NDHWK = ck::tensor_layout::convolution::NDHWK; + + using GNWC = ck::tensor_layout::convolution::GNWC; + using GNHWC = ck::tensor_layout::convolution::GNHWC; + using GNDHWC = ck::tensor_layout::convolution::GNDHWC; + + using GKXC = ck::tensor_layout::convolution::GKXC; + using GKYXC = ck::tensor_layout::convolution::GKYXC; + using GKZYXC = ck::tensor_layout::convolution::GKZYXC; + + using GKCX = ck::tensor_layout::convolution::GKCX; + using GKCYX = ck::tensor_layout::convolution::GKCYX; + using GKCZYX = ck::tensor_layout::convolution::GKCZYX; + + using GNWK = ck::tensor_layout::convolution::GNWK; + using GNHWK = ck::tensor_layout::convolution::GNHWK; + using GNDHWK = ck::tensor_layout::convolution::GNDHWK; + + using NGKW = ck::tensor_layout::convolution::NGKW; + using NGKHW = ck::tensor_layout::convolution::NGKHW; + using NGKDHW = ck::tensor_layout::convolution::NGKDHW; + + using NWGC = ck::tensor_layout::convolution::NWGC; + using NHWGC = ck::tensor_layout::convolution::NHWGC; + using NDHWGC = ck::tensor_layout::convolution::NDHWGC; + + using KXGC = ck::tensor_layout::convolution::KXGC; + using KYXGC = ck::tensor_layout::convolution::KYXGC; + using KZYXGC = ck::tensor_layout::convolution::KZYXGC; + + using NWGK = ck::tensor_layout::convolution::NWGK; + using NHWGK = ck::tensor_layout::convolution::NHWGK; + using NDHWGK = ck::tensor_layout::convolution::NDHWGK; + + using NGCW = ck::tensor_layout::convolution::NGCW; + using NGCHW = ck::tensor_layout::convolution::NGCHW; + using NGCDHW = ck::tensor_layout::convolution::NGCDHW; + + using G_K = ck::tensor_layout::convolution::G_K; + + using BlockGemmPipelineScheduler = ck::BlockGemmPipelineScheduler; + using GemmSpecialization = ck::tensor_operation::device::GemmSpecialization; + using BlockGemmPipelineVersion = ck::BlockGemmPipelineVersion; + + using ConvolutionForwardSpecialization = ck::tensor_operation::device::ConvolutionForwardSpecialization; + + using OutElementOp = PassThrough; + + namespace ck { + namespace utils { + namespace conv { + + ConvParam::ConvParam(ck::index_t n_dim, + ck::index_t group_count, + ck::index_t n_batch, + ck::index_t n_out_channels, + ck::index_t n_in_channels, + const std::vector& filters_len, + const std::vector& input_len, + const std::vector& strides, + const std::vector& dilations, + const std::vector& left_pads, + const std::vector& right_pads) + : num_dim_spatial_(static_cast(n_dim)), + G_(static_cast(group_count)), + N_(static_cast(n_batch)), + K_(static_cast(n_out_channels)), + C_(static_cast(n_in_channels)), + filter_spatial_lengths_(num_dim_spatial_), + input_spatial_lengths_(num_dim_spatial_), + output_spatial_lengths_(num_dim_spatial_), + conv_filter_strides_(num_dim_spatial_), + conv_filter_dilations_(num_dim_spatial_), + input_left_pads_(num_dim_spatial_), + input_right_pads_(num_dim_spatial_) + { + if(static_cast(filter_spatial_lengths_.size()) != num_dim_spatial_ || + static_cast(input_spatial_lengths_.size()) != num_dim_spatial_ || + static_cast(conv_filter_strides_.size()) != num_dim_spatial_ || + static_cast(conv_filter_dilations_.size()) != num_dim_spatial_ || + static_cast(input_left_pads_.size()) != num_dim_spatial_ || + static_cast(input_right_pads_.size()) != num_dim_spatial_) + { + throw( + std::runtime_error("ConvParam::ConvParam: " + "parameter size is different from number of declared dimensions!")); + } + + for(ck::index_t i = 0; i < num_dim_spatial_; ++i) + { + filter_spatial_lengths_[i] = static_cast(filters_len[i]); + input_spatial_lengths_[i] = static_cast(input_len[i]); + conv_filter_strides_[i] = static_cast(strides[i]); + conv_filter_dilations_[i] = static_cast(dilations[i]); + input_left_pads_[i] = static_cast(left_pads[i]); + input_right_pads_[i] = static_cast(right_pads[i]); + + // XEff = (X - 1) * conv_dilation_w + 1; + // Wo = (Wi + in_left_pad_w + in_right_pad_w - XEff) / conv_stride_w + 1; + const ck::long_index_t x_eff = + (filter_spatial_lengths_[i] - 1) * conv_filter_dilations_[i] + 1; + + output_spatial_lengths_[i] = + (input_spatial_lengths_[i] + input_left_pads_[i] + input_right_pads_[i] - x_eff) / + conv_filter_strides_[i] + + 1; + } + } + + } // namespace conv + } // namespace utils + } // namespace ck + + const std::vector& HostTensorDescriptor::GetLengths() const { return mLens; } + const std::vector& HostTensorDescriptor::GetStrides() const { return mStrides; } + std::size_t HostTensorDescriptor::GetNumOfDimension() const { return mLens.size(); } + void HostTensorDescriptor::CalculateStrides() { + mStrides.clear(); + mStrides.resize(mLens.size(), 0); + if(mStrides.empty()) + return; + + mStrides.back() = 1; + std::partial_sum( + mLens.rbegin(), mLens.rend() - 1, mStrides.rbegin() + 1, std::multiplies()); + } + """ + ) + return res + + def header(self) -> IndentedBuffer: + res = super().header() + res.splice( + """ + // CK conv headers + + #include "ck/tensor_operation/gpu/device/impl/device_grouped_conv_fwd_multiple_abd_xdl_cshuffle_v3.hpp" + #include "ck/tensor_operation/gpu/device/convolution_forward_specialization.hpp" + #include "ck/tensor_operation/gpu/device/gemm_specialization.hpp" + + #include "ck/library/utility/convolution_parameter.hpp" + #include "ck/library/utility/convolution_host_tensor_descriptor_helper.hpp" + """ + ) + return res + + @staticmethod + def add_ck_conv_choices( + choices, + layout, + input_nodes, + *, + stride, + padding, + dilation, + groups, + n_spatial_dimensions, + ): + template = CKGroupedConvFwdTemplate( + input_nodes, + layout, + stride=stride, + padding=padding, + dilation=dilation, + groups=groups, + n_spatial_dimensions=n_spatial_dimensions, + ) + ops = template.gen_ops() + for op in ops: + template.maybe_append_choice( + choices, + op=op, + ) + + def __init__( + self, + input_nodes, + layout, + *, + stride, + padding, + dilation, + groups, + n_spatial_dimensions, + ): + super().__init__( + "ck_conv_template", + input_nodes, + layout, + ) + self.stride = stride + self.padding = padding + self.dilation = dilation + self.groups = groups + self.n_spatial_dimensions = n_spatial_dimensions + + def filter_op(self, op: "CKGroupedConvFwdOp"): # type: ignore[name-defined] + metas = [ + T.get_layout() + for T in [*self.input_nodes, self.output_node] + if T is not None + ] + X_meta = metas[0] + W_meta = metas[1] + Y_meta = metas[-1] + # disable the instance if dtypes don't match + if op.a_element_dtype != self._TORCH_DTYPE_TO_CK[X_meta.dtype]: + return None + if op.b_element_dtype != self._TORCH_DTYPE_TO_CK[W_meta.dtype]: + return None + if op.e_element_dtype != self._TORCH_DTYPE_TO_CK[Y_meta.dtype]: + return None + # disable the instance if layouts don't match + if op.a_layout != torch_layout_to_ck_input_layout(X_meta): + return None + if op.b_layout != torch_layout_to_ck_weight_layout(W_meta): + return None + if op.e_layout != torch_layout_to_ck_output_layout(Y_meta): + return None + # disable the instance if number of spatial dimensions doesn't match + if op.n_dim_spatial != self.n_spatial_dimensions: + return None + # disable 1x1 and odd-channels conv specializations for now + if "Default" not in op.conv_forward_specialization: + return None + return op + + def gen_ops(self): + unfiltered_instances = gen_conv_ops_library() + + filtered_instances = list( + filter(lambda op: self.filter_op(op), unfiltered_instances) + ) + # NB: when using a fixed list order, most likely we will pick the subset of instances + # which are very similar to each other. Randomizing the choice seems to solve this. + random.seed(-11) + chosen_instances = ( + random.sample( + filtered_instances, + min(len(filtered_instances), config.rocm.ck_max_profiling_configs), + ) + if config.rocm.ck_max_profiling_configs + else filtered_instances + ) + log.debug( + "generated %d ck instances after filter: %s", + len(chosen_instances), + chosen_instances, + ) + return chosen_instances + + def emit_ck_instance(self, op: "CKGroupedConvFwdOp") -> tuple[str, str]: # type: ignore[name-defined] + # The Jinja template for generating a C++ type alias *definition* for a Universal GEMM instance + template_definition = r""" + // Gemm operator {{operation_name}} + using Operation_{{operation_name}} = + ck::tensor_operation::device::DeviceGroupedConvFwdMultipleABD_Xdl_CShuffle_V3< + {{template_params}}>; + +""" + # The Jinja template for generating a C++ type alias *usage* for a Universal GEMM instance + template_type = r""" + Operation_{{operation_name}} +""" + template_params = [] + for field_name, field_value in op.dict_items(): + if isinstance(field_value, tuple): + tuple_elements = ", ".join(map(str, iter(field_value))) + if "ds" in field_name: # element type and layout for bias + arg = f"/* {field_name} */ Tuple<{tuple_elements}>" + else: # tile shape + arg = f"/* {field_name} */ S<{tuple_elements}>" + # pyrefly: ignore [bad-argument-type] + template_params.append(arg) + else: + if field_value is not None: + # pyrefly: ignore [bad-argument-type] + template_params.append(f"/* {field_name} */ {field_value}") + return self._template_from_string(template_definition).render( + operation_name=op.name(), + template_params=(",\n" + 12 * " ").join(template_params), + ), self._template_from_string(template_type).render(operation_name=op.name()) + + def render( # type: ignore[override] + self, + kernel: ROCmTemplateKernel, + op: "CKGroupedConvFwdOp", # type: ignore[name-defined] + **kwargs, + ) -> str: + template_buffer_node = kwargs.get("template_buffer_node") + if template_buffer_node is not None: + self.output_node = template_buffer_node + X, W = self.input_nodes[0], self.input_nodes[1] + Y = self.output_node + Bias = self.input_nodes[2] if 3 == len(self.input_nodes) else None + + op = copy.deepcopy(op) + + instance_definition, instance_type = self.emit_ck_instance(op) + + size_arg_strs = [ + "GroupCount", + "NBatch", + "NOutChannels", + "NInChannels", + "FilterSize_0", + "FilterSize_1", + "InputSize_0", + "InputSize_1", + "ConvolutionStrides_0", + "ConvolutionStrides_1", + "Dilations_0", + "Dilations_1", + "LeftPads_0", + "LeftPads_1", + "RightPads_0", + "RightPads_1", + ] + + return self._template_from_string(self.conv_template).render( + headers=self.header().getvalue(), + globals=self.globals().getvalue(), + instance_definition=instance_definition, + instance_type=instance_type, + kernel_definition=kernel.def_kernel( + inputs=[X, W, Bias] if Bias is not None else [X, W], + outputs=[Y], + names_str="input, weight, bias, output" + if Bias is not None + else "input, weight, output", + size_args=[f"int32_t {arg}" for arg in size_arg_strs], + ), + n_d_tensors=1 if Bias is not None else 0, + n_dim_spatial=self.n_spatial_dimensions, + input_layout=op.a_layout, + weight_layout=op.b_layout, + output_layout=op.e_layout, + ) + + def size_args(self): + x, w = self.input_nodes[0], self.input_nodes[1] + y = self.output_node + + group_count = self.groups + n_batch = x.shape[0] # type: ignore[index] + n_out_channels = y.shape[1] # type: ignore[index] + n_in_channels = x.shape[1] # type: ignore[index] + + filter_size_0, filter_size_1 = w.shape[2:4] # type: ignore[index] + input_size_0, input_size_1 = x.shape[2:4] # type: ignore[index] + convolution_strides_0, convolution_strides_1 = self.stride + dilations_0, dilations_1 = self.dilation + left_pads_0, left_pads_1 = self.padding + right_pads_0, right_pads_1 = self.padding + + return ( + group_count, + n_batch, + n_out_channels, + n_in_channels, + filter_size_0, + filter_size_1, + input_size_0, + input_size_1, + convolution_strides_0, + convolution_strides_1, + dilations_0, + dilations_1, + left_pads_0, + left_pads_1, + right_pads_0, + right_pads_1, + ) + + @override + def get_runtime_arg_info(self) -> list[ArgInfo]: + return [] + + @override + def get_runtime_arg_values(self, **kwargs: Any) -> list[Any]: + """ + Helper method to retrieve runtime args from generate kwargs + """ + return [] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_template.py new file mode 100644 index 0000000000000000000000000000000000000000..b1eaf5c228eed80b5b9e40e3bbbd4e2de07b7c45 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_template.py @@ -0,0 +1,110 @@ +from typing import Any +from typing_extensions import override + +import torch +from torch._inductor.codegen.rocm.rocm_template import ROCmTemplate +from torch._inductor.ir import IRNode +from torch._inductor.utils import IndentedBuffer + +from .rocm_template import ArgInfo + + +class CKTemplate(ROCmTemplate): + """ + Base class for generating CK templates, has common, i.e. non-gemm-specific, code generation logic + """ + + _TORCH_DTYPE_TO_CK = { + torch.float32: "F32", + torch.float64: "F64", + torch.float16: "F16", + torch.bfloat16: "BF16", + torch.int32: "I32", + torch.int8: "I8", + torch.float8_e4m3fnuz: "F8", # gfx94 + torch.float8_e4m3fn: "F8", # gfx95 + torch.float8_e5m2fnuz: "BF8", # gfx94 + torch.float8_e5m2: "BF8", # gfx95 + } + + def header(self) -> IndentedBuffer: + res = super().header() + res.splice( + """ + // CK headers + + #ifdef DEBUG_LOG + #define DEBUG_LOG_TMP DEBUG_LOG + #undef DEBUG_LOG + #else + #define DEBUG_LOG_TMP 0 + #endif + #include "ck/ck.hpp" + #undef DEBUG_LOG + #define DEBUG_LOG DEBUG_LOG_TMP + + #include "ck/utility/data_type.hpp" + #include "ck/library/utility/check_err.hpp" + #include "ck/library/utility/device_memory.hpp" + #include "ck/library/utility/fill.hpp" + #include "ck/library/utility/host_tensor.hpp" + #include "ck/library/utility/host_tensor_generator.hpp" + #include "ck/library/utility/literals.hpp" + """ + ) + return res + + def globals(self) -> IndentedBuffer: + res = super().globals() + res.splice( + """ + // CK globals + + template + using S = ck::Sequence; + + template + using Tuple = ck::Tuple; + + using PassThrough = ck::tensor_operation::element_wise::PassThrough; + using Bilinear = ck::tensor_operation::element_wise::Bilinear; + using Scale = ck::tensor_operation::element_wise::Scale; + using ScaleAdd = ck::tensor_operation::element_wise::ScaleAdd; + using MultiplyMultiply = ck::tensor_operation::element_wise::MultiplyMultiply; + + // see "composable_kernel/include/ck/utility/data_type.hpp" + using F8 = ck::f8_t; + using BF8 = ck::bf8_t; + using F16 = ck::half_t; + using F32 = float; + // using F64 = double; + using BF16 = ck::bhalf_t; + // using I32 = int32_t; + // using I8 = int8_t; + // using I4 = ck::int4_t; + + #if DEBUG_LOG + static constexpr auto kDEBUG_LOG = 1; + #else + static constexpr auto kDEBUG_LOG = 0; + #endif + """ + ) + return res + + def torch_type_to_ck(self, node: IRNode, ptr: str) -> str: + if node is None: + return ptr + else: + return f"({self._TORCH_DTYPE_TO_CK.get(node.get_dtype())}*)({ptr})" + + @override + def get_runtime_arg_info(self) -> list[ArgInfo]: + return [ArgInfo("kBatch", "int32_t")] + + @override + def get_runtime_arg_values(self, **kwargs: Any) -> list[Any]: + """ + Helper method to retrieve runtime args from generate kwargs + """ + return [kwargs[arg.name] for arg in self.get_runtime_arg_info()] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_tile_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_tile_template.py new file mode 100644 index 0000000000000000000000000000000000000000..70d31d635cc36dca295b1d82066376a1185c4da9 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_tile_template.py @@ -0,0 +1,58 @@ +import torch +from torch._inductor.codegen.rocm.rocm_template import ROCmTemplate +from torch._inductor.ir import IRNode +from torch._inductor.utils import IndentedBuffer + + +class CKTileTemplate(ROCmTemplate): + """ + Base class for generating CK templates, has common, i.e. non-gemm-specific, code generation logic + """ + + _TORCH_DTYPE_TO_CK = { + torch.float32: "F32", + torch.float64: "F64", + torch.float16: "F16", + torch.bfloat16: "BF16", + torch.int32: "I32", + torch.int8: "I8", + torch.float8_e4m3fnuz: "F8", # gfx94 + torch.float8_e4m3fn: "F8", # gfx95 + torch.float8_e5m2fnuz: "BF8", # gfx94 + torch.float8_e5m2: "BF8", # gfx95 + } + + ck_dtype_to_size = { + "FP16": 2, + "BF16": 2, + } + + def header(self) -> IndentedBuffer: + res = super().header() + res.splice( + """ + // CK headers + #include "ck_tile/core.hpp" + + """ + ) + return res + + def globals(self) -> IndentedBuffer: + res = super().globals() + res.splice( + """ + using F8 = ck_tile::fp8_t; + using BF8 = ck_tile::bf8_t; + using F16 = ck_tile::half_t; + using F32 = float; + using BF16 = ck_tile::bfloat16_t; + """ + ) + return res + + def torch_type_to_ck(self, node: IRNode, ptr: str) -> str: + if node is None: + return ptr + else: + return f"({self._TORCH_DTYPE_TO_CK.get(node.get_dtype())}*)({ptr})" diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_tile_universal_gemm_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_tile_universal_gemm_template.py new file mode 100644 index 0000000000000000000000000000000000000000..94a79297ef5e47e16f98a8968c815262a9d24d75 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_tile_universal_gemm_template.py @@ -0,0 +1,979 @@ +# mypy: allow-untyped-defs, disable-error-code="attr-defined, valid-type" +import functools +import logging +import random +from dataclasses import asdict, dataclass +from typing import Any + +import torch +from torch._inductor import config +from torch._inductor.codegen.rocm.ck_tile_template import CKTileTemplate +from torch._inductor.codegen.rocm.rocm_kernel import ROCmTemplateKernel +from torch._inductor.codegen.rocm.rocm_template import ArgInfo +from torch._inductor.ir import Buffer, Layout +from torch.utils._ordered_set import OrderedSet + +from ...utils import IndentedBuffer + + +log = logging.getLogger(__name__) + + +def is_static_int(number): + import sympy + + return isinstance(number, (int, sympy.Integer)) + + +def torch_layout_to_ck_layout(torch_layout): + if torch_layout.stride[-1] == 1: + return "Row" + elif torch_layout.stride[-2] == 1: + return "Col" + else: + return None + + +@dataclass +class CKTileGemmOperation: + layout_a: str + layout_b: str + layout_c: str + + datatype_a: str + datatype_b: str + datatype_c: str + + tile_m: int + tile_n: int + tile_k: int + + warp_m: int + warp_n: int + warp_k: int + + warp_tile_m: int + warp_tile_n: int + warp_tile_k: int + + m_is_padded: str + n_is_padded: str + k_is_padded: str + + pipeline: str + scheduler: str + epilogue: str + + def layout_repr(self): + return f"{self.layout_a[0]}{self.layout_b[0]}{self.layout_c[0]}" + + def dtype_repr(self): + return f"{self.datatype_a}{self.datatype_b}{self.datatype_c}" + + def tile_sizes(self): + return "_".join( + [ + f"{self.tile_m}{self.tile_n}{self.tile_k}", + f"{self.warp_m}{self.warp_n}{self.warp_k}", + f"{self.warp_tile_m}{self.warp_tile_n}{self.warp_tile_k}", + ] + ) + + def name(self): + return "ck_tile_gemm_universal_" + "_".join( + [ + f"{self.layout_repr()}", + f"{self.dtype_repr()}", + f"{self.tile_sizes()}", + f"{self.pipeline}", + f"{self.scheduler}", + f"{self.epilogue}", + ] + ) + + def dict_items(self): + return asdict(self).items() + + +@functools.cache +def ops(): + """ + Generate the supported instance dataclasses + """ + import itertools + + compute_v3_instances = [ + CKTileGemmOperation( + layout_a=layout_a, + layout_b=layout_b, + layout_c=layout_c, + datatype_a=datatype_a, + datatype_b=datatype_b, + datatype_c=datatype_c, + tile_m=tile_m, + tile_n=tile_n, + tile_k=tile_k, + warp_m=warp_m, + warp_n=warp_n, + warp_k=warp_k, + warp_tile_m=warp_tile_m, + warp_tile_n=warp_tile_n, + warp_tile_k=warp_tile_k, + m_is_padded=m_is_padded, + n_is_padded=n_is_padded, + k_is_padded=k_is_padded, + pipeline="CompV3", + scheduler="Intrawave", + epilogue=epilogue, + ) + for (layout_a, layout_b, layout_c) in [ + ("Row", "Row", "Row"), + ("Row", "Col", "Row"), + ] + for (datatype_a, datatype_b, datatype_c) in [("FP16",) * 3, ("BF16",) * 3] + for (tile_m, tile_n, tile_k) in [(256, 256, 32), (256, 256, 64)] + for (warp_m, warp_n, warp_k) in [(2, 2, 1)] + for (warp_tile_m, warp_tile_n, warp_tile_k) in [(32, 32, 16)] + for m_is_padded in ["true", "false"] + for n_is_padded in ["true", "false"] + for k_is_padded in ["true", "false"] + for epilogue in ["Default", "CShuffle"] + ] + + compute_v4_instances = [ + CKTileGemmOperation( + layout_a=layout_a, + layout_b=layout_b, + layout_c=layout_c, + datatype_a=datatype_a, + datatype_b=datatype_b, + datatype_c=datatype_c, + tile_m=tile_m, + tile_n=tile_n, + tile_k=tile_k, + warp_m=warp_m, + warp_n=warp_n, + warp_k=warp_k, + warp_tile_m=warp_tile_m, + warp_tile_n=warp_tile_n, + warp_tile_k=warp_tile_k, + m_is_padded=m_is_padded, + n_is_padded=n_is_padded, + k_is_padded=k_is_padded, + pipeline="CompV4", + scheduler="Intrawave", + epilogue=epilogue, + ) + for (layout_a, layout_b, layout_c) in [ + ("Row", "Row", "Row"), + ("Row", "Col", "Row"), + ] + for (datatype_a, datatype_b, datatype_c) in [("FP16",) * 3, ("BF16",) * 3] + for (tile_m, tile_n, tile_k) in [ + (256, 256, 32) + ] # half the tile size since it has double buffering + for (warp_m, warp_n, warp_k) in [(2, 2, 1)] + for (warp_tile_m, warp_tile_n, warp_tile_k) in [(32, 32, 16)] + for m_is_padded in ["true", "false"] + for n_is_padded in ["true", "false"] + for k_is_padded in ["true", "false"] + for epilogue in ["Default", "CShuffle"] + ] + + mem_instances = [ + CKTileGemmOperation( + layout_a=layout_a, + layout_b=layout_b, + layout_c=layout_c, + datatype_a=datatype_a, + datatype_b=datatype_b, + datatype_c=datatype_c, + tile_m=tile_m, + tile_n=tile_n, + tile_k=tile_k, + warp_m=warp_m, + warp_n=warp_n, + warp_k=warp_k, + warp_tile_m=warp_tile_m, + warp_tile_n=warp_tile_n, + warp_tile_k=warp_tile_k, + m_is_padded=m_is_padded, + n_is_padded=n_is_padded, + k_is_padded=k_is_padded, + pipeline="Mem", + scheduler=scheduler, + epilogue=epilogue, + ) + for (layout_a, layout_b, layout_c) in [ + ("Row", "Row", "Row"), + ("Row", "Col", "Row"), + ] + for (datatype_a, datatype_b, datatype_c) in [("FP16",) * 3, ("BF16",) * 3] + for (tile_m, tile_n, tile_k) in [(256, 256, 32), (256, 256, 64)] + for (warp_m, warp_n, warp_k) in [(2, 2, 1)] + for (warp_tile_m, warp_tile_n, warp_tile_k) in [(32, 32, 16)] + for m_is_padded in ["true", "false"] + for n_is_padded in ["true", "false"] + for k_is_padded in ["true", "false"] + for scheduler in ["Intrawave", "Interwave"] + for epilogue in ["Default", "CShuffle"] + ] + + return list( + itertools.chain(compute_v3_instances, compute_v4_instances, mem_instances) + ) + + +class CKTileGemmTemplate(CKTileTemplate): + """ + This class is used for rendering CK-Tile Universal GEMM kernels + """ + + gemm_template = r"""{{version_comment}} + {{headers}} + {{globals}} + {{instance_definition}} + extern "C" { + PT_EXPORT {{kernel_definition}} { + + using {{instance_namespace}}::BaseGemmPipeline; + using {{instance_namespace}}::TilePartitioner; + + constexpr auto TileK = {{instance_namespace}}::TileK; + constexpr auto kPrefetchStages = BaseGemmPipeline::PrefetchStages; + + const auto BiasTerms = std::array (); + const auto BiasStrides = std::array (); + + auto kargs = ck_tile::UniversalGemmKernelArgs<> { + {X}, + {W}, + BiasTerms, + Y, + M, + N, + K, + {LDA}, + {LDB}, + BiasStrides, + LDC, + kBatch + }; + + if (workspace_size) { + *workspace_size = 0; + return 0; + } + + // run the kernel + const auto dispatch = [&](const auto has_hot_loop_, const auto tail_number_) constexpr { + using Kernel = {{instance_namespace}}::Kernel; + + if (!Kernel::IsSupportedArgument(kargs)) { + // we do our best to statically avoid this case in `filter_op` + throw std::runtime_error("invalid argument"); + } + auto stream_config = ck_tile::stream_config{stream}; + auto grid_size = Kernel::GridSize(M, N, kBatch); + constexpr auto block_size = Kernel::BlockSize(); + constexpr auto lds_bytes = 0; + constexpr auto kBlockPerCU = 1; + auto gemm = ck_tile::make_kernel(Kernel{}, grid_size, block_size, lds_bytes, kargs); + float elapsed_time = ck_tile::launch_kernel(stream_config, gemm); + }; + + const ck_tile::index_t k_grain = kBatch * TileK; + const ck_tile::index_t K_split = (K + k_grain - 1) / k_grain * TileK; + const ck_tile::index_t num_loop = TilePartitioner::GetLoopNum(K_split); + const bool has_hot_loop = BaseGemmPipeline::BlockHasHotloop(num_loop); + const ck_tile::TailNumber tail_num = BaseGemmPipeline::GetBlockLoopTailNum(num_loop); + + {{rendered_dispatch}} + + return 0; + } // kernel definition + } // extern C + """ + + def __init__( + self, + input_nodes: list[Buffer], + layout: Layout, + ) -> None: + super().__init__( + "ck_tile_gemm_template", + input_nodes=input_nodes, + layout=layout, + ) + + def header(self) -> IndentedBuffer: + res = super().header() + res.splice( + """ + // CK GEMM header(s) + + #include "ck_tile/ops/gemm.hpp" + #include "ck_tile/ops/epilogue.hpp" + """ + ) + return res + + def globals(self) -> IndentedBuffer: + res = super().globals() + res.splice( + """ + // CK GEMM globals + + using Row = ck_tile::tensor_layout::gemm::RowMajor; + using Col = ck_tile::tensor_layout::gemm::ColumnMajor; + + template + void dispatch_memory_pipeline_hot_loop(const ck_tile::TailNumber tail_num, Dispatcher dispatch) + { + if(tail_num == ck_tile::TailNumber::One) + { + dispatch(ck_tile::bool_constant{}, + ck_tile::integral_constant{}); + } + else if(tail_num == ck_tile::TailNumber::Full) + { + dispatch(ck_tile::bool_constant{}, + ck_tile::integral_constant{}); + } + + if constexpr(PrefetchStages > 2) + { + if(tail_num == ck_tile::TailNumber::Two) + { + dispatch(ck_tile::bool_constant{}, + ck_tile::integral_constant{}); + } + } + if constexpr(PrefetchStages > 3) + { + if(tail_num == ck_tile::TailNumber::Three) + { + dispatch(ck_tile::bool_constant{}, + ck_tile::integral_constant{}); + } + } + if constexpr(PrefetchStages > 4) + { + if(tail_num == ck_tile::TailNumber::Four) + { + dispatch(ck_tile::bool_constant{}, + ck_tile::integral_constant{}); + } + } + if constexpr(PrefetchStages > 5) + { + if(tail_num == ck_tile::TailNumber::Five) + { + dispatch(ck_tile::bool_constant{}, + ck_tile::integral_constant{}); + } + } + if constexpr(PrefetchStages > 6) + { + if(tail_num == ck_tile::TailNumber::Six) + { + dispatch(ck_tile::bool_constant{}, + ck_tile::integral_constant{}); + } + } + if constexpr(PrefetchStages > 7) + { + if(tail_num == ck_tile::TailNumber::Seven) + { + dispatch(ck_tile::bool_constant{}, + ck_tile::integral_constant{}); + } + } + } + """ + ) + return res + + def check_dtypes(self, op: "CKTileGemmOperation"): + X_dtype, W_dtype, out_dtype = [ + T.get_layout().dtype for T in [*self.input_nodes, self.output_node] + ] + if op.datatype_a != self._TORCH_DTYPE_TO_CK[X_dtype]: + return False + if op.datatype_b != self._TORCH_DTYPE_TO_CK[W_dtype]: + return False + if op.datatype_c != self._TORCH_DTYPE_TO_CK[out_dtype]: + return False + return True + + def check_layouts(self, op: "CKTileGemmOperation"): + X_layout, W_layout, out_layout = [ + torch_layout_to_ck_layout(T.get_layout()) + for T in [*self.input_nodes, self.output_node] + ] + if op.layout_a != X_layout: + return False + if op.layout_b != W_layout: + return False + if op.layout_c != out_layout: + return False + return True + + def get_gemm_problem_size(self): + X_size, W_size = [T.get_layout().size for T in [*self.input_nodes]] + + M, K = X_size + _, N = W_size + + return M, N, K + + def check_block_tiles(self, op: "CKTileGemmOperation"): + """ + The contiguous dimension of a tensor must be divisible by the block tile size + This helper function enforces it for the inputs and the output. + """ + M, N, K = self.get_gemm_problem_size() + + def check(dim_size, tile_size, is_padded): + if ( + is_static_int(dim_size) + and dim_size % tile_size != 0 + and is_padded == "false" + ): + return False + return True + + if op.layout_a == "Row": + # handle in kBatch check + return True + elif op.layout_a == "Col": + if not check(M, op.tile_m, op.m_is_padded): + return False + else: + raise AssertionError(f"Invalid layout {op.layout_a=}") + + if op.layout_b == "Row": + if not check(N, op.tile_n, op.n_is_padded): + return False + elif op.layout_b == "Col": + # handle in kBatch check + return True + else: + raise AssertionError(f"Invalid {op.layout_b=}") + + if op.layout_c == "Row": + if not check(N, op.tile_n, op.n_is_padded): + return False + elif op.layout_c == "Col": + if not check(M, op.tile_m, op.m_is_padded): + return False + else: + raise AssertionError(f"Invalid layout {op.layout_c=}") + + return True + + def check_alignments(self, op: "CKTileGemmOperation"): + """ + The contiguous dimension of a tensor must be divisible by the vector load size. + """ + M, N, K = self.get_gemm_problem_size() + + def max_alignment(contiguous_elements_per_tile, elements_per_thread, ck_dtype): + for vector_load_bytes in (16, 8, 4, 2, 1): + alignment = vector_load_bytes // self.ck_dtype_to_size[ck_dtype] + if ( + alignment > 0 + and contiguous_elements_per_tile % alignment == 0 + and elements_per_thread % alignment == 0 + ): + return alignment + + threads_per_block = ( + op.warp_m * op.warp_n * op.warp_k * self.gfx9_threads_per_warp + ) + a_elements_per_thread = op.tile_m * op.tile_k / threads_per_block + b_elements_per_thread = op.tile_n * op.tile_k / threads_per_block + + if op.layout_a == "Row": + # K is contiguous tensor dimension + a_max_vector_size = max_alignment( + op.tile_k, a_elements_per_thread, op.datatype_a + ) + if is_static_int(K) and K % a_max_vector_size != 0: + return False + elif op.layout_a == "Col": + # M is contiguous tensor dimension + a_max_vector_size = max_alignment( + op.tile_m, a_elements_per_thread, op.datatype_a + ) + if is_static_int(M) and M % a_max_vector_size != 0: + return False + else: + raise AssertionError(f"Invalid layout {op.layout_a=}") + + if op.layout_b == "Row": + # N is contiguous tensor dimension + b_max_vector_size = max_alignment( + op.tile_n, b_elements_per_thread, op.datatype_b + ) + if is_static_int(N) and N % b_max_vector_size != 0: + return False + elif op.layout_b == "Col": + # K is contiguous tensor dimension + b_max_vector_size = max_alignment( + op.tile_k, b_elements_per_thread, op.datatype_b + ) + if is_static_int(K) and K % b_max_vector_size != 0: + return False + else: + raise AssertionError(f"Invalid layout {op.layout_b=}") + + # the `default` epilogue writes C to memory by 1 tensor element + # (divisibility check not necessary) + # the `cshuffle` epilogue writes C to memory by 16 bytes + # (so the contiguous C dimension size must be divisible by the number of tensor elements in 16 bytes) + if op.epilogue == "CShuffle": + if ( + op.layout_c == "Row" + and is_static_int(N) + and N % (16 / self.ck_dtype_to_size[op.datatype_c]) != 0 + ): + return False + + return True + + def check_warp_tiles(self, op: "CKTileGemmOperation"): + if op.tile_m % (op.warp_m * op.warp_tile_m) != 0: + return False + if op.tile_n % (op.warp_n * op.warp_tile_n) != 0: + return False + if op.tile_k % (op.warp_k * op.warp_tile_k) != 0: + return False + return True + + def check_block_tile_size(self, op: "CKTileGemmOperation"): + # assuming LDS size is 64KB + if op.pipeline == "CompV4": + max_block_tile_size = 2**15 + else: + max_block_tile_size = 2**16 + + block_tile_size = ( + self.ck_dtype_to_size[op.datatype_a] * op.tile_m * op.tile_k + + self.ck_dtype_to_size[op.datatype_b] * op.tile_n * op.tile_k + ) + if block_tile_size > max_block_tile_size: + return False + return True + + def filter_op(self, op: "CKTileGemmOperation"): + """ + Determines whether a given op definition is suitable for the current + input / output of the operation that this template implements. + + Filter is based on inputs' dtype, layout and statically inferred size. + + Returns None if the op is not suitable, otherwise returns the op to be used. + """ + if not self.check_dtypes(op): + return None + if not self.check_layouts(op): + return None + if not self.check_block_tiles(op): + return None + if not self.check_alignments(op): + return None + + return op + + def emit_ck_instance(self, op: "CKTileGemmOperation"): + """ + This method is used to generate code which defines the type alias for the generated kernel class + """ + template_definition = r""" + // Gemm operator {{operation_name}} + + namespace {{operation_name}} { + // block tile + constexpr int32_t TileM = {{tile_m}}; + constexpr int32_t TileN = {{tile_n}}; + constexpr int32_t TileK = {{tile_k}}; + // warps per block + constexpr int32_t WarpM = {{warp_m}}; + constexpr int32_t WarpN = {{warp_n}}; + constexpr int32_t WarpK = {{warp_k}}; + // xdl tile + constexpr int32_t WarpTileM = {{warp_tile_m}}; + constexpr int32_t WarpTileN = {{warp_tile_n}}; + constexpr int32_t WarpTileK = {{warp_tile_k}}; + + constexpr bool kPadM = {{m_is_padded}}; + constexpr bool kPadN = {{n_is_padded}}; + constexpr bool kPadK = {{k_is_padded}}; + + using ALayout = {{layout_a}}; + using BLayout = {{layout_b}}; + using CLayout = {{layout_c}}; + + using ADataType = {{datatype_a}}; + using BDataType = {{datatype_b}}; + using CDataType = {{datatype_c}}; + using AccDataType = F32; + + constexpr bool permuteA = false; + constexpr bool permuteB = false; + constexpr bool DoubleSmemBuffer = {{has_double_smem_buffer}}; + constexpr bool TransposeC = false; + + constexpr int kBlockPerCu = 1; + constexpr ck_tile::index_t TilePartitionerGroupNum = 8; + constexpr ck_tile::index_t TilePartitionerM01 = 4; + + using GemmShape = + ck_tile::TileGemmShape, + ck_tile::sequence, + ck_tile::sequence, + permuteA, + permuteB>; + + using TilePartitioner = + ck_tile::GemmSpatiallyLocalTilePartitioner; + + using Traits = + ck_tile::TileGemmTraits; + + using GemmUniversalTraits = + ck_tile::TileGemmUniversalTraits; + + using GemmPipelineProblem = + ck_tile::GemmPipelineProblem; + + {{rendered_scheduler}} + + template + using UniversalGemmProblem = + ck_tile::UniversalGemmPipelineProblem; + + {{rendered_pipeline}} + + {{rendered_epilogue}} + + template + using Kernel = ck_tile::GemmKernel, GemmEpilogue>; + } + +""" + + def render_epilogue(epilogue_type): + if epilogue_type == "Default": + return r""" + using EpilogueProblem = ck_tile::DefaultGemm2DEpilogueProblem; + using GemmEpilogue = ck_tile::DefaultGemm2DEpilogue; + """ + elif epilogue_type == "CShuffle": + return r""" + constexpr auto kMemoryOperation = ck_tile::memory_operation_enum::set; + using DsDataType = ck_tile::tuple<>; // no bias terms for vanilla GEMM + using DsLayout = ck_tile::tuple<>; + constexpr auto ELayout = CLayout; + using CDEElementWise = ck_tile::element_wise::PassThrough; // no-op + using EpilogueProblem = ck_tile::CShuffleEpilogueProblem; + + using GemmEpilogue = ck_tile::CShuffleEpilogue; + """ + else: + raise AssertionError("Epilogue must be set") + + def render_pipeline(pipeline_type): + return rf""" + using BaseGemmPipeline = ck_tile::BaseGemmPipelineAgBgCr{pipeline_type}; + + template + using GemmPipeline = ck_tile::GemmPipelineAgBgCr{pipeline_type}>; + """ + + def render_scheduler(scheduler_type): + return rf""" + constexpr auto scheduler = ck_tile::GemmPipelineScheduler::{scheduler_type}; + """ + + rendered_definition = self._template_from_string(template_definition).render( + operation_name=op.name(), + **asdict(op), + rendered_scheduler=render_scheduler(op.scheduler), + rendered_pipeline=render_pipeline(op.pipeline), + rendered_epilogue=render_epilogue(op.epilogue), + has_double_smem_buffer=("true" if op.pipeline == "CompV4" else "false"), + ) + return rendered_definition + + def render( # type: ignore[override] + self, kernel: ROCmTemplateKernel, op: "CKTileGemmOperation", **kwargs + ) -> str: + """ + The primary entry point for the code rendering process used in this template. + """ + epilogue_nodes = kwargs.get("epilogue_nodes") + assert epilogue_nodes is None or 0 == len(epilogue_nodes) + template_buffer_node = kwargs.get("template_buffer_node") + if template_buffer_node is not None: + self.output_node = template_buffer_node + assert 2 == len(self.input_nodes) + X, W = self.input_nodes + Y = self.output_node + + instance_definition = self.emit_ck_instance(op) + + version_comment = rf"""/** +* Generated code for CK inductor backend +* See {type(self).__module__}.{type(self).__qualname__} +* +* Template instance {op} +* +* {torch.__version__=} +* torch.version.git_version={getattr(torch.version, "git_version", "None")} +*/ +""" + + def render_dispatch(pipeline_type, op_name): + switch_tailnum_template = r""" + switch (tail_num) { + {% for tail_num in valid_tailnums %} + case ck_tile::TailNumber::{{tail_num}}: + dispatch({{has_hot_loop}}, + ck_tile::integral_constant{}); + break; + {% endfor %} + default: + std::ostringstream err; + err << "Unsupported dispatch: " + << "Pipeline: " << "{{pipeline}}" + << "Prefetch stages: " << kPrefetchStages + << "Tail num: " << tail_num; + throw std::runtime_error(err.str()); + } // switch tail_num + """ + dispatch_template = r""" + if (has_hot_loop) { + {{rendered_with_hot_loop}} + } + else { // has_hot_loop == false + {{rendered_without_hot_loop}} + } // if has_hot_loop + """ + if pipeline_type == "CompV3": + return self._template_from_string(dispatch_template).render( + rendered_with_hot_loop=self._template_from_string( + switch_tailnum_template + ).render( + has_hot_loop="ck_tile::integral_constant{}", + valid_tailnums=("Full", "Odd", "Even"), + pipeline=pipeline_type, + ), + rendered_without_hot_loop=self._template_from_string( + switch_tailnum_template + ).render( + has_hot_loop="ck_tile::integral_constant{}", + valid_tailnums=("Full", "Odd", "Even"), + pipeline=pipeline_type, + ), + ) + elif pipeline_type == "Mem": + return self._template_from_string(dispatch_template).render( + rendered_with_hot_loop="dispatch_memory_pipeline_hot_loop(tail_num, dispatch);", + rendered_without_hot_loop=self._template_from_string( + switch_tailnum_template + ).render( + has_hot_loop="ck_tile::integral_constant{}", + valid_tailnums=("Full", "Odd", "Even"), + pipeline=pipeline_type, + ), + ) + elif pipeline_type == "CompV4": + return self._template_from_string(dispatch_template).render( + rendered_with_hot_loop=self._template_from_string( + switch_tailnum_template + ).render( + has_hot_loop="ck_tile::integral_constant{}", + valid_tailnums=("Two", "Three"), + pipeline=pipeline_type, + ), + rendered_without_hot_loop=self._template_from_string( + switch_tailnum_template + ).render( + has_hot_loop="ck_tile::integral_constant{}", + valid_tailnums=("Full", "Odd", "Even"), + pipeline=pipeline_type, + ), + ) + else: + raise AssertionError(f"Pipeline {pipeline_type} is not supported") + + return self._template_from_string(self.gemm_template).render( + headers=self.header().getvalue(), + globals=self.globals().getvalue(), + instance_definition=instance_definition, + kernel_definition=kernel.def_kernel( + inputs=[X, W], # type: ignore[list-item] + outputs=[Y], + names_str="X, W, Y", + size_args=[ + f"int32_t {arg}" for arg in ["M", "N", "K", "LDA", "LDB", "LDC"] + ], + ), + instance_namespace=op.name(), + version_comment=version_comment, + rendered_dispatch=render_dispatch(op.pipeline, op.name()), + ) + + def gen_ops(self): + """ + Creates a list of `CKTileGemmOperation` instances that match the GEMM operation this template represents. + The instances are guaranteed to have the correct layout, dtype and dimension padding for the GEMM input arguments. + + An instance may invalidate the GEMM configuration at runtime. + Such instances will be assigned +inf runtime by the autotune process. + """ + instances = ops() + if not instances: + raise AssertionError( + "No Composable Kernel Universal GEMM instances found. " + "Please check if the library is installed." + ) + filtered_instances = list(filter(self.filter_op, instances)) + # NB: when using a fixed list order, most likely we will pick the subset of instances + # which are very similar to each other. Randomizing the choice seems to solve this. + random.seed(-11) + chosen_instances = ( + random.sample( + filtered_instances, + min(len(filtered_instances), config.rocm.ck_tile_max_profiling_configs), + ) + if config.rocm.ck_tile_max_profiling_configs + else filtered_instances + ) + log.debug( + "generated %d ck instances after sample: %s", + len(chosen_instances), + chosen_instances, + ) + return chosen_instances + + @staticmethod + def add_choices( + choices, + layout, + input_nodes, + ): + """ + Add Composable Kernel Universal GEMM instance choices to the auto-tuning list. + """ + template = CKTileGemmTemplate( + input_nodes, + layout, + ) + ops = template.gen_ops() + for op in ops: + for k_batch in template.k_batch_choices(op): + template.maybe_append_choice( + choices, + op=op, + kBatch=k_batch, + ) + + def k_batch_choices(self, op: "CKTileGemmOperation") -> tuple[int, ...]: + """ + Returns a list of k_batch choices for the template. + """ + default_choices = (1, 2, 4, 8, 16, 32) + + def check(dim_size, tile_size, is_padded): + if ( + is_static_int(dim_size) + and dim_size % tile_size != 0 + and is_padded == "false" + ): + return False + return True + + _, _, K, _, _, _ = self.size_args() + if op.layout_a == "Row" or op.layout_b == "Col": + choices = tuple( + filter( + lambda k_batch: check(K, op.tile_k * k_batch, op.k_is_padded), + default_choices, + ) + ) + else: + choices = default_choices + + if op.epilogue == "Default": + choices = (1,) + + return choices + + def size_args(self): + """ + Sizes and strides to be used for the kernel call + """ + X = self.input_nodes[0] + W = self.input_nodes[1] + Y = self.output_node + + M = X.get_size()[0] + K = X.get_size()[1] + N = W.get_size()[1] + LDA = X.get_stride()[0 if X.get_stride()[1] == 1 else 1] + LDB = W.get_stride()[0 if W.get_stride()[1] == 1 else 1] + LDC = Y.get_stride()[0 if Y.get_stride()[1] == 1 else 1] + + return M, N, K, LDA, LDB, LDC + + def get_runtime_arg_info(self) -> list[ArgInfo]: + return [ArgInfo("kBatch", "int32_t")] + + def get_runtime_arg_values(self, **kwargs: Any) -> list[Any]: + # maybe_append_choice kwarg for k_batch must match the name of the argument + arg_names = OrderedSet([arg.name for arg in self.get_runtime_arg_info()]) + if not arg_names.issubset(kwargs): + raise ValueError( + "Missing runtime arguments: " + ", ".join(arg_names - kwargs.keys()) + ) + return [kwargs[k] for k in arg_names] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_universal_gemm_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_universal_gemm_template.py new file mode 100644 index 0000000000000000000000000000000000000000..e9f8ff54f9f45bc46fb3d4be5b74d36990fc69cf --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/ck_universal_gemm_template.py @@ -0,0 +1,1019 @@ +# mypy: allow-untyped-defs, disable-error-code="attr-defined, valid-type" +import copy +import logging +import math +import random +from collections import namedtuple +from typing import Optional + +import sympy + +import torch +from torch._inductor import config +from torch._inductor.codegen.cpp_utils import DTYPE_TO_CPP +from torch._inductor.codegen.rocm.ck_template import CKTemplate +from torch._inductor.codegen.rocm.compile_command import rocm_compile_command +from torch._inductor.codegen.rocm.rocm_kernel import ROCmTemplateKernel +from torch._inductor.ir import Buffer, Layout +from torch._inductor.runtime.runtime_utils import next_power_of_2 + +from ...utils import IndentedBuffer, is_dynamic, try_import_ck_lib + + +_, gen_ops_library, gen_ops_preselected, CKGemmOperation = try_import_ck_lib() + + +log = logging.getLogger(__name__) + +# lightweight collection of information about a single op +InductorROCmOp = namedtuple("InductorROCmOp", ["op", "kBatch"]) + +padding_lookup = { + "M": { + "GemmSpecialization::MPadding": True, + "GemmSpecialization::MNPadding": True, + "GemmSpecialization::MKPadding": True, + "GemmSpecialization::MNKPadding": True, + }, + "N": { + "GemmSpecialization::NPadding": True, + "GemmSpecialization::MNPadding": True, + "GemmSpecialization::NKPadding": True, + "GemmSpecialization::MNKPadding": True, + }, + "K": { + "GemmSpecialization::KPadding": True, + "GemmSpecialization::MKPadding": True, + "GemmSpecialization::NKPadding": True, + "GemmSpecialization::MNKPadding": True, + }, +} + + +def is_static_int(number): + return isinstance(number, (int, sympy.Integer)) + + +def torch_layout_to_ck_layout(torch_layout): + if torch_layout.stride[-1] == 1: + return "Row" + elif torch_layout.stride[-2] == 1: + return "Col" + else: + return None + + +class CKGemmTemplate(CKTemplate): + # the JINJA template for rendering CK Universal GEMMs + gemm_template = r"""{{version_comment}} + {{headers}} + {{globals}} + {{instance_definition}} + extern "C" { + PT_EXPORT {{kernel_definition}} { + auto gemm = {{instance_type}} {}; + auto invoker = gemm.MakeInvoker(); + {% if is_batched %} + auto argument = gemm.MakeArgument( + reinterpret_cast(X), + reinterpret_cast(W), + std::array{ {{ds_names}} }, + reinterpret_cast<{{c_element_dtype}}*>(Y), + M, + N, + K, + B, + LDA, + LDB, + std::array{ {{ds_strides}} }, + LDC, + M * K, // batch_stride_A + N * K, // batch_stride_B + std::array{ {{ds_batch_strides}} }, + M * N, // batch_stride_C + {{a_elementwise_op}}, + {{b_elementwise_op}}, + {{epilogue}} // c_elementwise_op + ); + {% else %} + auto argument = gemm.MakeArgument( + reinterpret_cast(X), + reinterpret_cast(W), + std::array{ {{ds_names}} }, + reinterpret_cast<{{c_element_dtype}}*>(Y), + M, + N, + K, + LDA, + LDB, + std::array{ {{ds_strides}} }, + LDC, + kBatch, // kBatch + {{a_elementwise_op}}, + {{b_elementwise_op}}, + {{epilogue}} // c_elementwise_op + ); + {% endif %} + if (!gemm.IsSupportedArgument(argument)) { + // we do our best to statically avoid this case in `filter_op` + std::cerr << "invalid argument for gemm instance " << gemm.GetTypeString() << std::endl; + argument.Print(); + return -23; + } + if (workspace_size) { + *workspace_size = gemm.GetWorkSpaceSize(&argument); + return 0; + } + // run the kernel + #ifdef GENERATE_CK_STANDALONE_RUNNER + const auto stream_config = StreamConfig{ + stream, + /* time kernel */ 1, + /* log level */ 1, + /* n_cold_iter */ 100, + /* n_hot_iter */ 100, + /* flush_l2_cache */ 1, + /* rotate_count */ 5}; + #else + const auto stream_config = StreamConfig{stream, /* time kernel */ false, /* log level */ 0}; + #endif + + const float elapsed_time = invoker.Run(argument, stream_config); + + #ifdef GENERATE_CK_STANDALONE_RUNNER + std::cout << "elapsed time: " << elapsed_time << " ms" << std::endl; + #else + (void)elapsed_time; + #endif + return 0; + } // kernel definition + } // extern C + """ + + standalone_runner_template = r""" + #ifdef GENERATE_CK_STANDALONE_RUNNER + // standalone runner for the generated CK GEMM kernel + + {{inline_utils}} + + extern "C" { + int run_main(int argc, char** argv) { + {% if is_batched %} + const int32_t B = {{B}}; + {% endif %} + const int32_t M = {{M}}; + const int32_t N = {{N}}; + const int32_t K = {{K}}; + const int32_t LDA = {{LDA}}; + const int32_t LDB = {{LDB}}; + const int32_t LDC = {{LDC}}; + const int32_t LDD = {{LDD}}; + const int32_t kBatch = {{kBatch}}; + + using AElementType = {{a_ck_dtype}}; + using BElementType = {{b_ck_dtype}}; + using CElementType = {{c_ck_dtype}}; + {% if has_bias %} + using BiasElementType = {{bias_ck_dtype}}; + {% endif %} + {% if has_scale %} + using ScaleAElementType = {{scale_a_ck_dtype}}; + using ScaleBElementType = {{scale_b_ck_dtype}}; + {% endif %} + + using AArgType = {{a_torch_dtype}}; + using BArgType = {{b_torch_dtype}}; + using CArgType = {{c_torch_dtype}}; + {% if has_bias %} + using BiasArgType = {{bias_torch_dtype}}; + {% endif %} + {% if has_scale %} + using ScaleAArgType = {{scale_a_torch_dtype}}; + using ScaleBArgType = {{scale_b_torch_dtype}}; + {% endif %} + + using ALayout = {{a_layout}}; + using BLayout = {{b_layout}}; + using CLayout = {{c_layout}}; + {% if has_bias %} + using BiasLayout = {{bias_layout}}; + {% endif %} + + {% if is_batched %} + using strides_t = std::array; + auto get_strides = [](int32_t batch_stride, int32_t leading_dimension, auto layout) constexpr -> strides_t { + if constexpr (std::is_same_v) { + return {batch_stride, leading_dimension, 1}; + } + return {batch_stride, 1, leading_dimension}; + }; + auto a_size = strides_t{B, M, K}; + auto a_stride = get_strides(M * K, LDA, ALayout{}); + auto b_size = strides_t{B, N, K}; + auto b_stride = get_strides(N * K, LDB, BLayout{}); + auto c_size = strides_t{B, M, N}; + auto c_stride = get_strides(M * N, LDC, CLayout{}); + {% else %} + using strides_t = std::array; + auto get_strides = [](int32_t leading_dimension, auto layout) constexpr -> strides_t { + if constexpr (std::is_same_v) { + return {leading_dimension, 1}; + } + return {1, leading_dimension}; + }; + auto a_size = strides_t{M, K}; + auto a_stride = get_strides(LDA, ALayout{}); + auto b_size = strides_t{N, K}; + auto b_stride = get_strides(LDB, BLayout{}); + auto c_size = strides_t{M, N}; + auto c_stride = get_strides(LDC, CLayout{}); + {% endif %} + + Tensor a_m_k ( HostTensorDescriptor ( a_size, a_stride ) ); + Tensor b_k_n ( HostTensorDescriptor ( b_size, b_stride ) ); + {% if has_bias %} + Tensor d_m_n ( HostTensorDescriptor ( c_size, get_strides(LDD, BiasLayout{}) ) ); + {% endif %} + {% if has_scale %} + // NB: these are hardcoded + Tensor s_a_m_n ( HostTensorDescriptor ( strides_t{M, N}, get_strides(0, Row{}) )); + Tensor s_b_m_n ( HostTensorDescriptor ( strides_t{M, N}, get_strides(0, Col{}) )); + {% endif %} + + Tensor c_m_n_host ( HostTensorDescriptor ( c_size, c_stride ) ); + Tensor c_m_n_device ( HostTensorDescriptor ( c_size, c_stride ) ); + + a_m_k.GenerateTensorValue(GeneratorTensor_2()); + b_k_n.GenerateTensorValue(GeneratorTensor_2()); + {% if has_bias %} + d_m_n.GenerateTensorValue(GeneratorTensor_2()); + {% endif %} + {% if has_scale %} + s_a_m_n.GenerateTensorValue(GeneratorTensor_2()); + s_b_m_n.GenerateTensorValue(GeneratorTensor_2()); + {% endif %} + DeviceMem a_m_k_device_buf(sizeof(AElementType) * a_m_k.mDesc.GetElementSpaceSize()); + DeviceMem b_k_n_device_buf(sizeof(BElementType) * b_k_n.mDesc.GetElementSpaceSize()); + {% if has_bias %} + DeviceMem d_m_n_device_buf(sizeof(BiasElementType) * d_m_n.mDesc.GetElementSpaceSize()); + {% endif %} + {% if has_scale %} + DeviceMem s_a_m_n_device_buf(sizeof(ScaleAElementType) * s_a_m_n.mDesc.GetElementSpaceSize()); + DeviceMem s_b_m_n_device_buf(sizeof(ScaleBElementType) * s_b_m_n.mDesc.GetElementSpaceSize()); + {% endif %} + DeviceMem c_m_n_device_buf(sizeof(CElementType) * c_m_n_device.mDesc.GetElementSpaceSize()); + + a_m_k_device_buf.ToDevice(a_m_k.mData.data()); + b_k_n_device_buf.ToDevice(b_k_n.mData.data()); + {% if has_bias %} + d_m_n_device_buf.ToDevice(d_m_n.mData.data()); + {% endif %} + {% if has_scale %} + s_a_m_n_device_buf.ToDevice(s_a_m_n.mData.data()); + s_b_m_n_device_buf.ToDevice(s_b_m_n.mData.data()); + {% endif %} + + {{kernel_name}}( + static_cast(a_m_k_device_buf.GetDeviceBuffer()), + static_cast(b_k_n_device_buf.GetDeviceBuffer()), + {% if has_scale %} + static_cast(s_a_m_n_device_buf.GetDeviceBuffer()), + static_cast(s_b_m_n_device_buf.GetDeviceBuffer()), + {% endif %} + {% if has_bias %} + static_cast(d_m_n_device_buf.GetDeviceBuffer()), + {% endif %} + static_cast(c_m_n_device_buf.GetDeviceBuffer()), + {% if is_batched %} + B, + {% endif %} + M, + N, + K, + LDA, + LDB, + LDC, + LDD, + nullptr, // workspace_size + nullptr, // workspace + nullptr); // stream + + hip_check_error(hipDeviceSynchronize()); + + return 0; + } // run_main + } // extern C + + int main(int argc, char** argv) { + return run_main(argc, argv); + } + // compile with: {{compile_cmd}} + #endif // GENERATE_CK_STANDALONE_RUNNER + """ + + def __init__( + self, + input_nodes: list[Buffer], + layout: Layout, + alpha: float, + beta: float, + input_reorder: Optional[list[int]] = None, + ) -> None: + is_batched = len(layout.size) == 3 + name = "ck_batched_gemm_template" if is_batched else "ck_gemm_template" + super().__init__( + name=name, + input_nodes=input_nodes, + layout=layout, + input_reorder=input_reorder, + ) + self.alpha = alpha + self.beta = beta + self.is_batched = is_batched + + def header(self) -> IndentedBuffer: + res = super().header() + if self.is_batched: + res.splice( + """ + // CK GEMM header(s) + + #include "ck/tensor_operation/gpu/device/impl/device_batched_gemm_multiple_d_xdl_cshuffle_v3.hpp" + """ + ) + else: + res.splice( + """ + // CK GEMM header(s) + + #include "ck/tensor_operation/gpu/device/impl/device_gemm_multiple_d_xdl_cshuffle_v3.hpp" + """ + ) + return res + + def globals(self) -> IndentedBuffer: + res = super().globals() + res.splice( + """ + // CK GEMM globals + + using Row = ck::tensor_layout::gemm::RowMajor; + using Col = ck::tensor_layout::gemm::ColumnMajor; + + using BlockGemmPipelineScheduler = ck::BlockGemmPipelineScheduler; + using GemmSpecialization = ck::tensor_operation::device::GemmSpecialization; + using BlockGemmPipelineVersion = ck::BlockGemmPipelineVersion; + + struct MultiplyMultiplyAdd { + template + __host__ __device__ constexpr void + operator()(E& e, const C& c, const D0& d0, const D1& d1, const D2& d2) const { + e = ck::type_convert( + ck::type_convert(c) + * ck::type_convert(d0) + * ck::type_convert(d1) + + ck::type_convert(d2) + ); + } + }; + """ + ) + return res + + def inline_utils(self): + res = IndentedBuffer() + res.splice( + """ + #include "host_tensor.cpp" + #include "device_memory.cpp" + """ + ) + return res + + def _has_padding(self, dimension, gemm_specialization): + # Get the relevant padding map for the given dimension + dimension_padding = padding_lookup.get(dimension, {}) + + # Check if the specialization is in the dimension's padding map + return dimension_padding.get(gemm_specialization, False) + + def filter_op(self, op_info: InductorROCmOp): + """ + Determines whether a given op definition is suitable for the current + input / output of the operation that this template implements. + + Filter is based on inputs' dtype, layout and statically inferred size. + + Returns None if the op is not suitable, otherwise returns the op to be used. + """ + op, kBatch = op_info.op, op_info.kBatch + metas = [T.get_layout() for T in [*self.input_nodes, self.output_node]] + X_meta = metas[0] + W_meta = metas[1] + Y_meta = metas[-1] + # disable the instance if dtypes don't match + if op.a_element_dtype != self._TORCH_DTYPE_TO_CK[X_meta.dtype]: + return None + if op.b_element_dtype != self._TORCH_DTYPE_TO_CK[W_meta.dtype]: + return None + if op.c_element_dtype != self._TORCH_DTYPE_TO_CK[Y_meta.dtype]: + return None + # disable the instance if layouts don't match + if op.a_layout != torch_layout_to_ck_layout(X_meta): + return None + if op.b_layout != torch_layout_to_ck_layout(W_meta): + return None + if op.c_layout != torch_layout_to_ck_layout(Y_meta): + return None + # try to avoid launching the instance with invalid problem size + # see GridwiseGemm_xdl_cshuffle_v3::CheckValidity + + M = X_meta.size[-2] + K = X_meta.size[-1] + N = W_meta.size[-1] + + if is_static_int(M): + if not self._has_padding("M", op.gemm_specialization): + if M % op.m_per_block != 0: + return None + if is_static_int(N): + if not self._has_padding("N", op.gemm_specialization): + if N % op.n_per_block != 0: + return None + if is_static_int(K): + if not self._has_padding("K", op.gemm_specialization): + if K % op.k_per_block != 0: + return None + K_t = kBatch * op.k_per_block + if K % K_t != 0: + return None + else: + # need another kBatch check here + lcm = abs(op.a_k1 * op.b_k1) // math.gcd(op.a_k1, op.b_k1) + K_t = kBatch * lcm + k_read_pad_splited = math.ceil(K / K_t) * lcm + if (k_read_pad_splited * (kBatch - 1)) >= K: + return None + + a_contig_size = ( + K if op.a_layout == "Row" else M if op.a_layout == "Col" else None + ) + if ( + is_static_int(a_contig_size) + and a_contig_size % op.a_block_transfer_src_scalar_per_vector != 0 + ): + return None + b_contig_size = ( + N if op.b_layout == "Row" else K if op.b_layout == "Col" else None + ) + if ( + is_static_int(b_contig_size) + and b_contig_size % op.b_block_transfer_src_scalar_per_vector != 0 + ): + return None + c_contig_size = ( + N if op.c_layout == "Row" else M if op.c_layout == "Col" else None + ) + c_shuffle_block_transfer_scalar_per_vector_n_per_block = ( + op.c_shuffle_block_transfer_scalar_per_vector_n_per_block[0] + if isinstance( + op.c_shuffle_block_transfer_scalar_per_vector_n_per_block, tuple + ) + else op.c_shuffle_block_transfer_scalar_per_vector_n_per_block + ) + if ( + is_static_int(c_contig_size) + and c_contig_size % c_shuffle_block_transfer_scalar_per_vector_n_per_block + != 0 + ): + return None + if not self._check_num_k_loops(op, kBatch): + return None + # TBD disable instances with invalid number of pipeline prefetch stages + # It will avoid compiling a small percentage of unrunnable instances which fail the gemm argument check + + return op + + def _check_num_k_loops(self, op, kBatch): + # Additional splitK scenario check + metas = [T.get_layout() for T in [*self.input_nodes]] + X_meta = metas[0] + W_meta = metas[1] + K = X_meta.size[-1] + if kBatch > 1: + if op.block_gemm_pipeline_version != "BlockGemmPipelineVersion::v1": + try: + prefetch_stages = self._prefetch_stages( + op, + torch.empty((), dtype=X_meta.dtype).element_size(), + torch.empty((), dtype=W_meta.dtype).element_size(), + torch.cuda.get_device_properties(X_meta.device).warp_size, + ) + except Exception as e: + log.debug( # noqa: G200 + "Failed to prefetch_stages for %s with exception %s", op.name, e + ) + # be conservative here and disable the op + return False + + K_t = op.k_per_block * kBatch + ak0 = (K + K_t - 1) // K_t * (op.k_per_block // op.a_k1) + num_k_loop = ak0 // (op.k_per_block // op.a_k1) + if num_k_loop <= prefetch_stages: + log.debug( + "Op %s is not compatible due to invalid number of pipeline prefetch stages. " + "Parameters: kBatch=%s, block_gemm_pipeline_version=%s, prefetch_stages=%s, num_k_loop=%s", + op.name(), + kBatch, + op.block_gemm_pipeline_version, + prefetch_stages, + num_k_loop, + ) + return False + + return True + + # small helper to figure out the prefetch stages on AMD + def _prefetch_stages(self, op, a_dtype_size, b_dtype_size, warp_size: int = 64): + version_str = op.block_gemm_pipeline_version.split("::")[-1] + try: + version = int(version_str[1:]) # Assuming the format is always 'vX' + except ValueError as e: + raise ValueError(f"Invalid version string: {version_str}") from e + if version not in [1, 2, 3, 4, 5]: + raise ValueError( + f"unknown prefetch stages for {op.block_gemm_pipeline_version}" + ) + # Define the mapping of versions to stages + version_to_stages = {1: 1, 3: 2, 4: 4, 5: 3} + # Get the stages for the given version + stages = version_to_stages.get(version) + if stages is None: + # This means we're at stage 2, and this requires computation + # See github.com/ROCm/composable_kernel/blob/d6a4605/include/ck/tensor_operation/gpu/block/blockwise_gemm_pipeline_xdlops_v2.hpp#L143 # noqa: B950 + wgp_per_cu = max(4 * warp_size // op.block_size, 1) + full_mem_band_prefetch_stages = math.ceil( + 32768 + / wgp_per_cu + / ( + (op.m_per_block * a_dtype_size + op.n_per_block * b_dtype_size) + * op.k_per_block + ) + ) + stages = min(max(full_mem_band_prefetch_stages, 2), 8) + + return stages + + def emit_ck_instance(self, op: "CKGemmOperation"): + # The Jinja template for generating a C++ type alias *definition* for a Universal GEMM instance + struct_name = ( + "DeviceBatchedGemmMultiD_Xdl_CShuffle_V3" + if self.is_batched + else "DeviceGemmMultiD_Xdl_CShuffle_V3" + ) + template_definition = r""" + // Gemm operator {{operation_name}} + using Operation_{{operation_name}} = + ck::tensor_operation::device::{{struct_name}}< + {{template_params}}>; + +""" + # The Jinja template for generating a C++ type alias *usage* for a Universal GEMM instance + template_type = r""" + Operation_{{operation_name}} +""" + template_params = [] + for field_name, field_value in op.dict_items(): + if isinstance(field_value, tuple): + tuple_elements = ", ".join(map(str, iter(field_value))) + if "ds" in field_name: # element type and layout for bias + arg = f"/* {field_name} */ Tuple<{tuple_elements}>" + else: # tile shape + arg = f"/* {field_name} */ S<{tuple_elements}>" + # pyrefly: ignore [bad-argument-type] + template_params.append(arg) + else: + if field_value is not None: + # pyrefly: ignore [bad-argument-type] + template_params.append(f"/* {field_name} */ {field_value}") + operation_name = op.name().replace("(", "").replace(",", "").replace(")", "") + return self._template_from_string(template_definition).render( + operation_name=operation_name, + template_params=(",\n" + 12 * " ").join(template_params), + struct_name=struct_name, + ), self._template_from_string(template_type).render( + operation_name=operation_name + ) + + def render( # type: ignore[override] + self, + kernel: ROCmTemplateKernel, + op: "CKGemmOperation", + **kwargs, + ) -> str: + """ + The primary entry point for the code rendering process used in this template. + """ + epilogue_nodes = kwargs.get("epilogue_nodes") + assert epilogue_nodes is None or 0 == len(epilogue_nodes) + template_buffer_node = kwargs.get("template_buffer_node") + if template_buffer_node is not None: + self.output_node = template_buffer_node + # input nodes: + # * X, W for matmul + # * X, W, Bias for addmm + # * X, W, inv_scale_x, inv_scale_w for scaled_mm + # * X, W, inv_scale_x, inv_scale_w, Bias for scaled_mm with bias + X, W = self.input_nodes[0], self.input_nodes[1] + Y = self.output_node + Bias = ( + self.input_nodes[2] + if 3 == len(self.input_nodes) + else self.input_nodes[4] + if 5 == len(self.input_nodes) + else None + ) + has_bias = Bias is not None + has_scale = len(self.input_nodes) in (4, 5) + op = copy.deepcopy(op) + + # This parameter is converted into tuple because of change + # from DeviceGemm_Xdl_CShuffleV3 to DeviceGemmMultiD_Xdl_CShuffle_V3. + # The first tuple element corresponds to matmul result... + if not isinstance( + op.c_shuffle_block_transfer_scalar_per_vector_n_per_block, tuple + ): + op.c_shuffle_block_transfer_scalar_per_vector_n_per_block = ( + op.c_shuffle_block_transfer_scalar_per_vector_n_per_block, + ) + + if has_scale: + scale_x = self.input_nodes[2] + scale_w = self.input_nodes[3] + if 1 == scale_x.get_numel() and 1 == scale_w.get_numel(): + # tensorwise scale for both X, W + if has_bias: + op.c_elementwise_op = "ScaleAdd" + else: + op.c_elementwise_op = "Scale" + else: + # rowwise scale for both X, W + if has_bias: + op.c_elementwise_op = "MultiplyMultiplyAdd" + else: + op.c_elementwise_op = "MultiplyMultiply" + op.c_shuffle_dtype = "F32" + op.ds_layouts = ( + torch_layout_to_ck_layout(scale_x.get_layout()), + torch_layout_to_ck_layout(scale_w.get_layout()), + ) + op.ds_element_dtypes = ( + self._TORCH_DTYPE_TO_CK[scale_x.get_layout().dtype], + self._TORCH_DTYPE_TO_CK[scale_w.get_layout().dtype], + ) + op.c_shuffle_block_transfer_scalar_per_vector_n_per_block += (1, 1) + else: + scale_x = None + scale_w = None + + bias_dtype = "" + if Bias is not None: + bias_layout = torch_layout_to_ck_layout(Bias.get_layout()) + bias_dtype = self._TORCH_DTYPE_TO_CK[Bias.get_layout().dtype] + op.ds_layouts += (bias_layout,) + op.ds_element_dtypes += (bias_dtype,) + if not has_scale: + op.c_elementwise_op = "Bilinear" + # c_shuffle_dtype is also used for adding bias to matmul result + # before converting down to the result dtype + op.c_shuffle_dtype = op.acc_dtype + # this parameter needs to be set accordingly to bias stride for correct accumulation + if bias_layout == "Row": + # bias has (N, ) shape + bias_shuffle_block_transfer_scalar_per_vector_n_per_block = ( + op.c_shuffle_block_transfer_scalar_per_vector_n_per_block + ) + elif bias_layout == "Col": + # bias has (M, 1) shape + bias_shuffle_block_transfer_scalar_per_vector_n_per_block = (1,) + else: + raise AssertionError( + "Bias layout is neither row-major nor column-major" + ) + # ...and the second tuple element corresponds to the bias + op.c_shuffle_block_transfer_scalar_per_vector_n_per_block += ( + bias_shuffle_block_transfer_scalar_per_vector_n_per_block + ) + + instance_definition, instance_type = self.emit_ck_instance(op) + + version_comment = rf"""/** +* Generated code for CK inductor backend +* See {type(self).__module__}.{type(self).__qualname__} +* +* Template instance {op} +* +* {torch.__version__=} +* torch.version.git_version={getattr(torch.version, "git_version", "None")} +*/ +""" + epilogue = None + + if op.c_elementwise_op == "Bilinear" and scale_w is None: + epilogue = f"Bilinear {{ {self.alpha}, {self.beta} }}" + + elif op.c_elementwise_op == "Scale": + epilogue = "Scale { (inv_scale_w && inv_scale_x) ? (*inv_scale_w * *inv_scale_x) : 1.0f }" + + elif op.c_elementwise_op == "ScaleAdd": + epilogue = "ScaleAdd { (inv_scale_w && inv_scale_x) ? (*inv_scale_w * *inv_scale_x) : 1.0f }" + + elif op.c_elementwise_op == "MultiplyMultiply": + epilogue = "MultiplyMultiply {}" + + elif op.c_elementwise_op == "MultiplyMultiplyAdd": + epilogue = "MultiplyMultiplyAdd {}" + + elif op.c_elementwise_op == "PassThrough": + epilogue = "PassThrough {}" + + assert epilogue is not None, "CK GEMM epilogue is not set" + + size_arg_strs = ["M", "N", "K", "LDA", "LDB", "LDC", "LDD"] + if self.is_batched: + size_arg_strs.insert(0, "B") + + res = self._template_from_string(self.gemm_template).render( + inline_utils=self.inline_utils(), + headers=self.header().getvalue(), + globals=self.globals().getvalue(), + instance_definition=instance_definition, + kernel_definition=kernel.def_kernel( + inputs=[X, W, scale_x, scale_w, Bias], # type: ignore[list-item] + outputs=[Y], + names_str="X, W, inv_scale_x, inv_scale_w, Bias, Y", + input_reorder=self.input_reorder, + size_args=[f"int32_t {arg}" for arg in size_arg_strs], + ), + instance_type=instance_type, + a_element_dtype=op.a_element_dtype, + b_element_dtype=op.b_element_dtype, + c_element_dtype=op.c_element_dtype, + bias_element_dtype=bias_dtype, + alpha=self.alpha, + beta=self.beta, + a_elementwise_op="PassThrough {}", + b_elementwise_op="PassThrough {}", + epilogue=epilogue, + has_bias=has_bias, + ds_size=1 + if op.c_elementwise_op in ("Bilinear", "ScaleAdd") + else 2 + if op.c_elementwise_op == "MultiplyMultiply" + else 3 + if op.c_elementwise_op == "MultiplyMultiplyAdd" + else 0, + ds_names=", ".join( + ["Bias"] + if op.c_elementwise_op in ("Bilinear", "ScaleAdd") + else ["inv_scale_x", "inv_scale_w"] + if op.c_elementwise_op == "MultiplyMultiply" + else ["inv_scale_x", "inv_scale_w", "Bias"] + if op.c_elementwise_op == "MultiplyMultiplyAdd" + else [] + ), + ds_strides=", ".join( + ["LDD"] + if op.c_elementwise_op in ("Bilinear", "ScaleAdd") + else ["0", "0"] + if op.c_elementwise_op == "MultiplyMultiply" + else ["0", "0", "LDD"] + if op.c_elementwise_op == "MultiplyMultiplyAdd" + else [] + ), + version_comment=version_comment, + is_batched=self.is_batched, + ds_batch_strides=", ".join([]), # FIXME when supporting baddbmm + ) + + if config.rocm.generate_test_runner: + is_static_problem = all(is_static_int(arg) for arg in self.size_args()) + # NOTE: size_arg_strs is defined above + size_arg_vals = ( + self.size_args() + if is_static_problem + else ( + f"std::stoi(argv[{k}])" for k, _ in enumerate(self.size_args(), 1) + ) + ) + size_args = dict(zip(size_arg_strs, size_arg_vals, strict=True)) + runtime_args = dict( + zip( + [a.name for a in self.get_runtime_arg_info()], + self.get_runtime_arg_values(), + ) + ) + runner_code = self._template_from_string( + self.standalone_runner_template + ).render( + inline_utils=self.inline_utils().getvalue(), + kernel_name=kernel.kernel_name, + has_bias=has_bias, + has_scale=has_scale, + is_batched=self.is_batched, + a_ck_dtype=op.a_element_dtype, + b_ck_dtype=op.b_element_dtype, + c_ck_dtype=op.c_element_dtype, + bias_ck_dtype=op.ds_element_dtypes[0] if has_bias else "", + scale_a_ck_dtype=op.ds_element_dtypes[0] + if has_scale and 2 == len(op.ds_element_dtypes) + else "BF16", + scale_b_ck_dtype=op.ds_element_dtypes[1] + if has_scale and 2 == len(op.ds_element_dtypes) + else "BF16", + a_torch_dtype=DTYPE_TO_CPP[X.get_layout().dtype], + b_torch_dtype=DTYPE_TO_CPP[W.get_layout().dtype], + c_torch_dtype=DTYPE_TO_CPP[Y.get_layout().dtype], + bias_torch_dtype=DTYPE_TO_CPP[Bias.get_layout().dtype] + if Bias is not None + else "", + scale_a_torch_dtype=DTYPE_TO_CPP[scale_x.get_layout().dtype] + if scale_x is not None + else "", + scale_b_torch_dtype=DTYPE_TO_CPP[scale_w.get_layout().dtype] + if scale_w is not None + else "", + a_layout=torch_layout_to_ck_layout(X.get_layout()), + b_layout=torch_layout_to_ck_layout(W.get_layout()), + c_layout=torch_layout_to_ck_layout(Y.get_layout()), + bias_layout=torch_layout_to_ck_layout(Bias.get_layout()) + if Bias is not None + else "", + compile_cmd=rocm_compile_command( + [""], "", "exe" + ), + **size_args, + **runtime_args, + ) + res += runner_code + + return res + + def _is_rcr_f16(self): + X_meta, W_meta, Y_meta = ( + T.get_layout() for T in [*self.input_nodes, self.output_node] + ) + X_dtype, W_dtype, Y_dtype = ( + self._TORCH_DTYPE_TO_CK[m.dtype] for m in (X_meta, W_meta, Y_meta) + ) + X_layout, W_layout, Y_layout = ( + torch_layout_to_ck_layout(m) for m in (X_meta, W_meta, Y_meta) + ) + + return ( + X_dtype == "F16" + and W_dtype == "F16" + and Y_dtype == "F16" + and X_layout == "Row" + and W_layout == "Col" + and Y_layout == "Row" + ) + + # helper to calculate a potentially optimal kBatch(es) for a problem + def _get_kBatch(self, op): + # we only set a higher kBatch if K > 16 * the larger of M and N + # this is a hand-tuned heuristic to start + metas = [T.get_layout() for T in [*self.input_nodes]] + X_meta = metas[0] + W_meta = metas[1] + M = X_meta.size[-2] + K = X_meta.size[-1] + N = W_meta.size[-1] + if is_dynamic(*self.input_nodes): + return [1] + if K // max(M, N) < config.rocm.split_k_threshold: + return [1] + # if the user is telling us which kBatches to sweep, just use those + if config.rocm.kBatch_sweep is not None: + return config.rocm.kBatch_sweep + # Calculate the number of blocks needed for each dimension + total_k_blocks = math.ceil(K / op.k_per_block) + # we want to calculate how many blocks we need to fit per CU + cus = torch.cuda.get_device_properties(X_meta.device).multi_processor_count + # again, manual heuristics as much larger kBatch are significantly worse in + # initial testing + kBatch = min(max(next_power_of_2(total_k_blocks // cus), 1), 128) + return [kBatch] + + def gen_ops(self) -> list[InductorROCmOp]: + """ + Creates a list of `CKGemmOperation` instances that match the GEMM operation this template represents. + The instances are guaranteed to have the correct layout, dtype and dimension padding for the GEMM input arguments. + + An instance may invalidate the GEMM configuration at runtime. + Such instances will be assigned +inf runtime by the autotune process. + """ + try: + from ck4inductor.batched_universal_gemm.gen_instances import ( # type: ignore[import] + gen_ops_library as gen_batched_gemm_ops_library, + ) + from ck4inductor.universal_gemm.gen_instances import ( # type: ignore[import] + gen_ops_library as gen_gemm_ops_library, + gen_ops_preselected as gen_gemm_ops_preselected, + ) + except ImportError: + return [] + + generator = None + if self.is_batched: + generator = gen_batched_gemm_ops_library + else: + generator = gen_gemm_ops_library + if config.rocm.use_preselected_instances and self._is_rcr_f16(): + generator = gen_gemm_ops_preselected + + assert generator is not None + + rops = generator() + ops = [] + for o in rops: + kBatches = self._get_kBatch(o) + for kBatch in kBatches: + # pyrefly: ignore [bad-argument-type] + ops.append(InductorROCmOp(op=o, kBatch=kBatch)) + + filtered_instances = list(filter(lambda op: self.filter_op(op), ops)) + + # NB: when using a fixed list order, most likely we will pick the subset of instances + # which are very similar to each other. Randomizing the choice seems to solve this. + random.seed(-11) + chosen_instances = ( + random.sample( + filtered_instances, + min(len(filtered_instances), config.rocm.ck_max_profiling_configs), + ) + if config.rocm.ck_max_profiling_configs + else filtered_instances + ) + log.debug( + "generated %d ck instances after filter: %s", + len(chosen_instances), + chosen_instances, + ) + return chosen_instances + + @staticmethod + def add_ck_gemm_choices( + choices, + layout, + input_nodes, + alpha=1, + beta=0, + input_reorder=None, + ): + """ + Add Composable Kernel Universal GEMM instance choices to the auto-tuning list. + """ + template = CKGemmTemplate( + input_nodes, + layout, + alpha=alpha, + beta=beta, + input_reorder=input_reorder, + ) + ops = template.gen_ops() + for op in ops: + template.maybe_append_choice( + choices, + op=op.op, + kBatch=op.kBatch, + ) + + def size_args(self): + X = self.input_nodes[0] + W = self.input_nodes[1] + Bias = ( + self.input_nodes[2] + if len(self.input_nodes) == 3 + else self.input_nodes[4] + if len(self.input_nodes) == 5 + else None + ) + Y = self.output_node + + M = X.get_size()[-2] + K = X.get_size()[-1] + N = W.get_size()[-1] + LDA = X.get_stride()[-2 if X.get_stride()[-1] == 1 else -1] + LDB = W.get_stride()[-2 if W.get_stride()[-1] == 1 else -1] + LDC = Y.get_stride()[-2 if Y.get_stride()[-1] == 1 else -1] + LDD = ( + 0 + if (Bias is None or len(Bias.get_size()) == 1) + else Bias.get_stride()[-2 if Bias.get_stride()[-1] == 1 else -1] + ) + if self.is_batched: + B = X.get_size()[0] + return B, M, N, K, LDA, LDB, LDC, LDD + else: + return M, N, K, LDA, LDB, LDC, LDD diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/compile_command.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/compile_command.py new file mode 100644 index 0000000000000000000000000000000000000000..aa935b14af23c2efd667871df5e05798a4434fa8 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/compile_command.py @@ -0,0 +1,153 @@ +# mypy: allow-untyped-defs +import logging +import os +from typing import Optional + +from torch._inductor import config +from torch._inductor.utils import is_linux, try_import_ck_lib + + +log = logging.getLogger(__name__) + + +def _rocm_include_paths(dst_file_ext: str) -> list[str]: + from torch.utils import cpp_extension + + rocm_include = ( + os.path.join(config.rocm.rocm_home, "include") + if config.rocm.rocm_home + else cpp_extension._join_rocm_home("include") + ) + + if config.is_fbcode(): + from libfb.py import parutil + + ck_path = parutil.get_dir_path("composable-kernel-headers") + else: + if not config.rocm.ck_dir: + ck_dir, _, _, _ = try_import_ck_lib() + if not ck_dir: + log.warning("Unspecified Composable Kernel directory") + config.rocm.ck_dir = ck_dir + ck_path = config.rocm.ck_dir or cpp_extension._join_rocm_home( + "composable_kernel" + ) + + log.debug("Using ck path %s", ck_path) + + ck_include = os.path.join(ck_path, "include") + ck_library_include = os.path.join(ck_path, "library", "include") + + # CK has to take priority over ROCm include paths + # Since CK is potentially more up-to-date + paths = [ + os.path.realpath(p) for p in (ck_include, ck_library_include, rocm_include) + ] + if dst_file_ext == "exe": + ck_utility_include = os.path.join(ck_path, "library", "src", "utility") + paths.append(os.path.realpath(ck_utility_include)) + return paths + + +def _rocm_lib_options(dst_file_ext: str) -> list[str]: + from torch.utils import cpp_extension + + rocm_lib_dir = ( + os.path.join(config.rocm.rocm_home, "lib") + if config.rocm.rocm_home + else cpp_extension._join_rocm_home("lib") + ) + hip_lib_dir = ( + os.path.join(config.rocm.rocm_home, "hip", "lib") + if config.rocm.rocm_home + else cpp_extension._join_rocm_home("hip", "lib") + ) + + opts = [ + "-include __clang_hip_runtime_wrapper.h", + f"-L{os.path.realpath(rocm_lib_dir)}", + f"-L{os.path.realpath(hip_lib_dir)}", + "-lamdhip64", + ] + if dst_file_ext == "exe": + opts += ["-lpthread", "-lstdc++"] + return opts + + +def _rocm_compiler_options() -> list[str]: + arch_list = config.rocm.arch or ["native"] + gpu_arch_flags = [f"--offload-arch={arch}" for arch in arch_list] + opts = [ + config.rocm.compile_opt_level, + "-x", + "hip", + "-std=c++17", + *gpu_arch_flags, + "-fno-gpu-rdc", + "-fPIC", + "-fvisibility=hidden", + "-mllvm", + "-amdgpu-early-inline-all=true", + "-mllvm", + "-amdgpu-function-calls=false", + "-mllvm", + "-enable-post-misched=0", + ] + if config.rocm.is_debug: + opts += ["-DDEBUG_LOG=1", "-g"] + if config.rocm.save_temps: + opts += ["--save-temps=obj"] + if config.rocm.print_kernel_resource_usage: + opts += ["-Rpass-analysis=kernel-resource-usage"] + if config.rocm.flush_denormals: + opts += ["-fgpu-flush-denormals-to-zero"] + if config.rocm.use_fast_math: + opts += ["-ffast-math"] + return opts + + +def rocm_compiler() -> Optional[str]: + if is_linux(): + if config.rocm.rocm_home: + return os.path.realpath( + os.path.join(config.rocm.rocm_home, "llvm", "bin", "clang") + ) + try: + from torch.utils import cpp_extension + + return os.path.realpath( + cpp_extension._join_rocm_home("llvm", "bin", "clang") + ) + except OSError: + # neither config.rocm.rocm_home nor env variable ROCM_HOME are set + return "clang" + return None + + +def rocm_compile_command( + src_files: list[str], + dst_file: str, + dst_file_ext: str, + extra_args: Optional[list[str]] = None, +) -> str: + include_paths = _rocm_include_paths(dst_file_ext) + lib_options = _rocm_lib_options(dst_file_ext) + compiler_options = _rocm_compiler_options() + compiler = rocm_compiler() + options = ( + compiler_options + + (extra_args or []) + + [f"-I{path}" for path in include_paths] + + lib_options + ) + src_file = " ".join(src_files) + # supported extensions: .o, .so, .exe + if dst_file_ext == "o": + options.append("-c") + elif dst_file_ext == "so": + options.append("-shared") + elif dst_file_ext == "exe": + options.append("-DGENERATE_CK_STANDALONE_RUNNER") + else: + raise NotImplementedError(f"Unsupported output file suffix {dst_file_ext}!") + return f"{compiler} {' '.join(options)} -o {dst_file} {src_file}" diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_benchmark_request.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_benchmark_request.py new file mode 100644 index 0000000000000000000000000000000000000000..c5a87bef820dfc76037b5294b00a5f25f26be223 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_benchmark_request.py @@ -0,0 +1,143 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import functools +import logging +from ctypes import byref, c_int, c_size_t, c_void_p +from typing import Any, Optional, TYPE_CHECKING, Union + +import torch +from torch._inductor import config +from torch._inductor.autotune_process import ( + BenchmarkRequest, + GPUDeviceBenchmarkMixin, + TensorMeta, +) +from torch._inductor.codecache import DLLWrapper, ROCmCodeCache + + +if TYPE_CHECKING: + from collections.abc import Callable, Iterable + + +log = logging.getLogger(__name__) + + +class ROCmBenchmarkRequest(GPUDeviceBenchmarkMixin, BenchmarkRequest): + # Important: Instances of this class have to be serializable + # across process boundaries. Do not put CUDA Tensors in here! + + def __init__( + self, + kernel_name: str, + input_tensor_meta: Union[TensorMeta, list[TensorMeta]], + output_tensor_meta: Union[TensorMeta, list[TensorMeta]], + extra_args: Iterable[Any], + source_code: str, + ) -> None: + super().__init__(kernel_name, input_tensor_meta, output_tensor_meta, extra_args) + self.source_code = source_code + self.workspace_size: int = 0 + self.workspace: Optional[torch.Tensor] = None + self.DLL: Optional[DLLWrapper] = None + self._workspace_size_updated = False + self.hash_key: str = "" + self.source_file: str = "" + self.hash_key, self.source_file = ROCmCodeCache.write(self.source_code, "so") + + def precompile(self): + # Prepopulate code cache + # may happen in separate Threadpool + log.debug("Precompiling %s", self) + ROCmCodeCache.compile(self.source_code, "so") + if config.rocm.generate_test_runner: + ROCmCodeCache.compile(self.source_code, "exe") + log.debug("Done precompiling %s", self) + + def make_run_fn( + self, *input_tensors: torch.Tensor, out: torch.Tensor + ) -> Callable[[], None]: + self.ensure_dll_loaded() + self.update_workspace_size() + args = [c_void_p(tensor.data_ptr()) for tensor in list(input_tensors) + [out]] + size_args = [c_int(arg) for arg in self.extra_args] + log.debug( + "make_run_fn: self.kernel_name=%s, self.source_file=%s, self.hash_key=%s, self.DLL=%s, args=%s, self.extra_args=%s", + self.kernel_name, + self.source_file, + self.hash_key, + self.DLL, + args, + self.extra_args, + ) + stream_ptr = c_void_p(torch.cuda.current_stream().cuda_stream) + run_method = getattr(self.DLL, self.kernel_name) + workspace_ptr = c_void_p(0) + if self.workspace_size > 0: + self.workspace = torch.zeros( + (self.workspace_size + 7) // 8, + dtype=torch.float64, + device=out.device, + ) + workspace_ptr = c_void_p(self.workspace.data_ptr()) + + # Generate partial function. + return functools.partial( + run_method, + *args, + *size_args, + None, # null workspace size ptr + workspace_ptr, # set workspace ptr, + stream_ptr, + ) + + def update_workspace_size(self) -> None: + if self._workspace_size_updated: + return + self.ensure_dll_loaded() + unique_input_count = len( + dict.fromkeys(meta.name for meta in self.input_tensor_meta) + ) + args = [c_void_p(None) for _ in range(unique_input_count + 1)] + stream_ptr = c_void_p(torch.cuda.current_stream().cuda_stream) + + run_method = getattr(self.DLL, self.kernel_name) + # Retrieve workspace_size and initialize workspace. + c_workspace_size = c_size_t() + size_args = [c_int(arg) for arg in self.extra_args] + run_method( + *args, # input ptrs and output ptrs + *size_args, + byref( + c_workspace_size + ), # set workspace size ptr to retrieve workspace size + None, # null workspace ptr + stream_ptr, + ) + torch.cuda.synchronize() # shake out any CUDA errors + self.workspace_size = c_workspace_size.value + log.debug( + "update_workspace_size called: new workspace size=%d, self.kernel_name=%s, self.source_file=%s, self.hash_key=%s, self.DLL=%s, args=%s, self.extra_args=%s", # noqa: B950 + self.workspace_size, + self.kernel_name, + self.source_file, + self.hash_key, + self.DLL, + args, + self.extra_args, + ) + self._workspace_size_updated = True + + def ensure_dll_loaded(self): + if self.DLL is None: + self.DLL, self.hash_key, self.source_file = ROCmCodeCache.load( + self.source_code, "so" + ) + + def cleanup_run_fn(self) -> None: + if self.DLL is not None: + self.DLL.close() + self.workspace = None + + def __str__(self) -> str: + return f"{self.kernel_name=}, {self.source_file=}, {self.hash_key=}" diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_cpp_scheduling.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_cpp_scheduling.py new file mode 100644 index 0000000000000000000000000000000000000000..ec58e458df6b110fab0c452ec261861d0c2d7cef --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_cpp_scheduling.py @@ -0,0 +1,100 @@ +# mypy: allow-untyped-defs +import logging +from collections.abc import Sequence +from typing import cast + +from ... import config +from ...codecache import code_hash, get_path +from ...scheduler import BaseSchedulerNode, BaseScheduling, SchedulerNode +from ...utils import get_fused_kernel_name, get_kernel_metadata, sympy_product +from ...virtualized import V +from ..common import IndentedBuffer +from .rocm_template_buffer import ROCmTemplateBuffer + + +log = logging.getLogger(__name__) + + +class ROCmCPPScheduling(BaseScheduling): + """ + Partial Scheduling implementation for ROCm C++ Kernels. + This class is intended to be used in combination with TritonScheduling, + and delegated to by CUDACombinedScheduling. + + It handles fusion decisions and ROCm C++ specific template code generation. + """ + + def group_fn(self, sizes): + return tuple(V.graph.sizevars.simplify(sympy_product(s)) for s in sizes) + + @staticmethod + def is_rocm_cpp_template(node: BaseSchedulerNode) -> bool: + return isinstance(node, SchedulerNode) and isinstance( + node.node, ROCmTemplateBuffer + ) + + def can_fuse_vertical( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + return False + + def define_kernel(self, src_code: str, node_schedule) -> str: + wrapper = V.graph.wrapper_code + if src_code in wrapper.src_to_kernel: + kernel_name = wrapper.src_to_kernel[src_code] + else: + fused_name = ( + get_fused_kernel_name(node_schedule, config.triton.descriptive_names) + if config.triton.descriptive_names + else "" + ) + kernel_name = "_".join(["rocm", fused_name, wrapper.next_kernel_suffix()]) + # use the original src_code as the key + wrapper.src_to_kernel[src_code] = kernel_name + src_code = src_code.replace("KERNEL_NAME", kernel_name) + + _, _, kernel_path = get_path(code_hash(src_code), "py") + + compile_wrapper = IndentedBuffer() + compile_wrapper.writeline("async_compile.rocm(r'''") + compile_wrapper.splice(src_code, strip=True) + compile_wrapper.writeline( + f"''', 'so', aot_compile={str(V.graph.aot_mode)})" + ) + + metadata_comment = f"# kernel path: {kernel_path}" + origins, detailed_origins = get_kernel_metadata(node_schedule, wrapper) + metadata_comment += "\n" + origins + "\n" + detailed_origins + wrapper.define_kernel( + kernel_name, compile_wrapper.getvalue(), metadata_comment + ) + return kernel_name + + def codegen_template( + self, + template_node: BaseSchedulerNode, + epilogue_nodes: Sequence[BaseSchedulerNode], + prologue_nodes: Sequence[BaseSchedulerNode], + ): + """ + Codegen a ROCm template, possibly with fused epilogues + """ + assert self.is_rocm_cpp_template(template_node), ( + "Template node passed to ROCmScheduler.codegen_template must be a SchedulerNode that wraps a ROCmTemplateBuffer" + ) + template_node = cast(SchedulerNode, template_node) + _, (_numel, rnumel) = template_node.group + assert rnumel == 1 + ctb: ROCmTemplateBuffer = cast(ROCmTemplateBuffer, template_node.node) + kernel, render = ctb.make_kernel_render(ctb) # type: ignore[misc] + with kernel: + template_node.mark_run() + src_code = render() + + with V.set_kernel_handler(kernel): + node_schedule = [template_node] + kernel_name = self.define_kernel(src_code, node_schedule) + self.codegen_comment(node_schedule, kernel_name) + kernel.call_kernel(kernel_name, ctb) + V.graph.removed_buffers |= kernel.removed_buffers + self.free_buffers_in_scheduler() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_kernel.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_kernel.py new file mode 100644 index 0000000000000000000000000000000000000000..c5981e129cb192d1f6e0ce1f445401e8c7e51b5e --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_kernel.py @@ -0,0 +1,297 @@ +# mypy: allow-untyped-defs +import logging +from collections.abc import Callable, Sequence +from typing import Any, Optional, TYPE_CHECKING, Union + +import torch._inductor.config as config +from torch._inductor.codegen.cpp_wrapper_cpu import CppWrapperCpu +from torch._inductor.utils import do_bench_using_profiling + +from ...ir import ( + Buffer, + ChoiceCaller, + IRNode, + Layout, + PrimitiveInfoType, + ShapeAsConstantBuffer, + TensorBox, +) +from ...virtualized import V +from ..common import Kernel, OpOverrides, WorkspaceArg, WorkspaceZeroMode +from ..cpp_utils import CppPrinter +from .rocm_benchmark_request import ROCmBenchmarkRequest +from .rocm_template_buffer import ROCmTemplateBuffer +from .rocm_utils import DTYPE_TO_ROCM_TYPE + + +if TYPE_CHECKING: + from torch._inductor.codegen.rocm.rocm_template import ArgInfo, ROCmTemplate + +log = logging.getLogger(__name__) + +cexpr = CppPrinter().doprint + + +def _normalize_idx(index: int, total_length: int) -> int: + return index if index >= 0 else index + total_length + + +class ROCmKernel(Kernel): + """ + Baseclass for ROCm based Kernels + """ + + overrides = OpOverrides # type: ignore[assignment] + + +class ROCmTemplateKernel(ROCmKernel): + """ + Template kernels defined by ROCm in C++. + """ + + _EXTRA_CPP_ARGS = "size_t* workspace_size, uint8_t* workspace, hipStream_t stream" + + def __init__( + self, + kernel_name: str, + runtime_arg_info: list["ArgInfo"], + runtime_arg_values: list[Any], + ) -> None: + """ + Initializes a new instance of the ROCmTemplateKernel class. + + Args: + kernel_name (str): The name of the kernel. + """ + super().__init__() + self.kernel_name = kernel_name + # Mapping from arg name to IRNode. + self.named_nodes: dict[str, IRNode] = {} + self.runtime_arg_info = runtime_arg_info + self.runtime_arg_values = runtime_arg_values + + def get_signature(self): + return self.signature + + def def_kernel( + self, + inputs: list[IRNode], + outputs: list[IRNode], + size_args: list[str], + names_str: str = "", + input_reorder: Optional[list[int]] = None, + ) -> str: + """ + Hook called from template code to generate function definition and + needed args. + + Args: + inputs: List of input IRNodes + outputs: List of output IRNodes + names_str: Comma separated list of input + output argument names. + input_reorder: The actual order of input nodes. + e.g. The template might have input argument defined as [X, W, Bias], + and the actual input passed into this template could be [Bias, X, W]. + In this case, the `input_reorder` would be [2, 0, 1]. + """ + names = [x.strip() for x in names_str.strip().split(",")] + if len(inputs) + len(outputs) != len(names): + raise RuntimeError( + f"{len(inputs) + len(outputs)=} != {len(names)=}, {inputs=}, {outputs=}, {names=}" + ) + + if input_reorder == [2, 0, 1]: + input_reorder = [4, 0, 1, 2, 3] + + if input_reorder is not None: + assert len(inputs) == len(input_reorder) + else: + input_reorder = list(range(len(inputs))) + + for idx in input_reorder: + name = names[idx] + node = inputs[idx] + if node is not None: + self.named_nodes[name] = node + self.args.input_buffers[node.get_name()] = name + + for name, node in zip(names[len(inputs) : len(inputs) + len(outputs)], outputs): + if node is not None: + self.named_nodes[name] = node + self.args.output_buffers[node.get_name()] = name + + arg_defs, *_ = self.args.cpp_argdefs(DTYPE_TO_ROCM_TYPE) + + runtime_arg_defs = [f"{arg.ty} {arg.name}" for arg in self.runtime_arg_info] + + signature = f"int {self.kernel_name}({', '.join(arg_defs + size_args + runtime_arg_defs)},{self._EXTRA_CPP_ARGS})" + self.signature = signature + return signature + + def call_kernel( + self, + name: str, + node: "ROCmTemplateBuffer", # type: ignore[name-defined] + ) -> None: + """ + Generates code to call the kernel through V.graph.wrapper_code. + used from within torch._inductor.wrapper.PythonWrapperCodegen + + name: Name of kernel function. + node: The ROCmTemplateBuffer node which contains information about the kernel, it's fused epilogue nodes + as well as all required inputs and outputs. + """ + wrapper = V.graph.wrapper_code + + arg_types: list[Any] + if V.graph.cpp_wrapper: + # Make sure we initialize these kernels since they're exported as + # C-style symbol names. + assert isinstance(wrapper, CppWrapperCpu) + wrapper.initialized_kernels[name] = self + # Kinda hacky because we always originally initialize name with "KERNEL_NAME" + # So, we replace with the real kernel name passed as an arg to this function. + self.signature = self.signature.replace("KERNEL_NAME", name) + _, call_args, arg_types = self.args.cpp_argdefs(DTYPE_TO_ROCM_TYPE) + else: + _, call_args, _, arg_types = self.args.python_argdefs() + + kernel_args = [] + for arg in call_args: + # dynamo wraps unspec variable as 0d CPU tensor, need convert to scalar + if V.graph.is_unspec_arg(arg): + arg = arg + ".item()" + else: + if not V.graph.cpp_wrapper: + arg = f"c_void_p({arg}.data_ptr())" + kernel_args.append(arg) + + # add size args + size_args = [ + f"{V.graph.sizevars.simplify(sarg)}" for sarg in node.template.size_args() + ] + + if V.graph.cpp_wrapper: + kernel_args.extend(size_args) + else: + kernel_args.extend(f"c_int({sarg})" for sarg in size_args) + + if V.graph.cpp_wrapper: + arg_types.extend(["int"] * len(node.template.size_args())) + + # the runtime args come right after the size args + kernel_args.extend(self.runtime_arg_values) + for arg in self.runtime_arg_info: + arg_types.append(arg.ty) + + # workspace_size ptr is NULL to mark this call is not intended for retrieving workspace_size. + # workspace_size should have already been retrieved prior to this call. + kernel_args.append("nullptr" if V.graph.cpp_wrapper else "None") + if V.graph.cpp_wrapper: + arg_types.append("size_t*") + + if node.get_workspace_size() > 0: + ws = WorkspaceArg( + count=node.get_workspace_size(), + device=V.graph.get_current_device_or_throw(), + zero_mode=WorkspaceZeroMode.UNINITIALIZED, + outer_name=WorkspaceArg.unique_name(), + ) + wrapper.generate_workspace_allocation(ws) + data_ptr = f"{ws.outer_name}.data_ptr()" + kernel_args.append( + data_ptr if V.graph.cpp_wrapper else f"c_void_p({data_ptr})" + ) + else: + ws = None + kernel_args.append("nullptr" if V.graph.cpp_wrapper else "None") + if V.graph.cpp_wrapper: + arg_types.append("uint8_t*") + wrapper.generate_kernel_call( + name, + kernel_args, + triton=False, + arg_types=arg_types, + ) + if ws: + wrapper.generate_workspace_deallocation(ws) + + +class ROCmTemplateCaller(ChoiceCaller): + """ + ROCmTemplateCaller + + This class represents a caller for ROCm template kernels. It is a subclass of ChoiceCaller. + Attributes: + name (str): The name of the caller. + category (str): The category of the caller. + bmreq (ROCmBenchmarkRequest): The benchmark request for the caller. + template_buffer (ROCmTemplateBuffer): The template buffer for the caller. + """ + + def __init__( + self, + name: str, + category: str, + input_nodes: list[Buffer], + layout: Layout, + make_kernel_render: Callable[ + [ROCmTemplateBuffer, Optional[Sequence[IRNode]]], str + ], + bmreq: ROCmBenchmarkRequest, + template: "ROCmTemplate", # type: ignore[name-defined] + info_kwargs: Optional[ + dict[str, Union[PrimitiveInfoType, list[PrimitiveInfoType]]] + ], # type: ignore[type-arg] + ) -> None: + super().__init__(name, input_nodes, layout, description="") + self.category = category + self.make_kernel_render = make_kernel_render + self.bmreq = bmreq + self.template = template + self.info_kwargs = info_kwargs + + def precompile(self) -> None: + assert self.bmreq is not None + self.bmreq.precompile() + + def benchmark(self, *args, out) -> float: + assert self.bmreq is not None + if config.profile_bandwidth_with_do_bench_using_profiling: + algo = self.bmreq.make_run_fn(*args, out=out) + return do_bench_using_profiling(algo) + return self.bmreq.benchmark(*args, out=out) + + def __str__(self) -> str: + return f"ROCmTemplateCaller(source_file={self.bmreq.source_file}, {self.info_dict()})" + + def call_name(self) -> str: + return f"rocm_template_kernels.{self.name}" + + def hash_key(self) -> str: + return "-".join( + [ + self.category, + self.bmreq.hash_key, + ] + ) + + def info_dict(self) -> dict[str, Union[PrimitiveInfoType, list[PrimitiveInfoType]]]: + """Information returned here is logged to the autotune log file when that is enabled.""" + return { + "backend": "ROCm", + "name": self.name, + **dict(self.info_kwargs["op"].dict_items()), # type: ignore[union-attr, index] + } + + def output_node(self) -> Union[TensorBox, ShapeAsConstantBuffer]: + self.bmreq.update_workspace_size() + return TensorBox.create( + ROCmTemplateBuffer( + layout=self.layout, + inputs=self.input_nodes, + make_kernel_render=self.make_kernel_render, + workspace_size=self.bmreq.workspace_size, + template=self.template, + ) + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_template.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_template.py new file mode 100644 index 0000000000000000000000000000000000000000..bfeb03eabc72d7cf9bce701f535e612644a806c3 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_template.py @@ -0,0 +1,192 @@ +# mypy: allow-untyped-defs +import functools +import itertools +import logging +from collections.abc import Sequence +from dataclasses import dataclass +from typing import Any, Optional +from unittest.mock import patch + +from ...autotune_process import TensorMeta +from ...ir import Buffer, IRNode, Layout +from ...utils import IndentedBuffer, unique +from ...virtualized import V +from ..common import KernelTemplate +from .rocm_benchmark_request import ROCmBenchmarkRequest +from .rocm_kernel import ROCmTemplateCaller, ROCmTemplateKernel +from .rocm_template_buffer import ROCmTemplateBuffer +from .rocm_utils import DTYPE_TO_ROCM_TYPE + + +log = logging.getLogger(__name__) + + +# FIXME: unify with the CUDA version +@dataclass(frozen=True) +class ArgInfo: + name: str + ty: str + + +class ROCmTemplate(KernelTemplate): + index_counter = itertools.count() + gfx9_threads_per_warp = 64 + + def __init__( + self, + name: str, + input_nodes: list[Buffer], + layout: Layout, + input_reorder: Optional[list[int]] = None, + ) -> None: + """ + + Baseclass for ROCm C++ Templates, derived from KernelTemplate. Not to be instantiated directly. + + Args: + name (str): The name of the ROCmTemplate object. + input_nodes (List[IRNode]): A list of input IRNodes. + layout (Layout): The layout of the output buffer / tensor. + input_reorder (Optional[List[int]]): An optional list that specifies the order of the input nodes. + + """ + super().__init__(name) + self.input_nodes = input_nodes + self.output_node: Buffer = Buffer(name="buf_out", layout=layout) + self.input_reorder = input_reorder + self.layout = layout + + def generate( # type: ignore[override] + self, + **kwargs, + ) -> ROCmTemplateCaller: + """ + Generates the ROCm template caller object for the given GEMM template and operation. This ROCmTemplateCaller + may be used to call and benchmark the generated ROCm kernel in a standalone manner to enable Autotuning. + + Args: + kwargs: Additional keyword arguments. + + Returns: + A ROCmTemplateCaller object representing the generated ROCm template caller. + """ + kernel_name = f"rocm_{self.name}" + kernel_hash_name = f"rocm_{self.name}_{next(self.index_counter)}" + with ( + patch.object(V.graph, "get_dtype", self._fake_get_dtype(self.output_node)), + ROCmTemplateKernel( + kernel_name=kernel_name, + runtime_arg_info=self.get_runtime_arg_info(), + runtime_arg_values=self.get_runtime_arg_values(**kwargs), + ) as kernel, + ): + code = self.render(kernel=kernel, **kwargs) + _, call_args, _, _ = kernel.args.python_argdefs() + log.debug("Autotune key: %s, Generated Code:\n%s", kernel_hash_name, code) + log.debug( + "Args: cpp_argdefs: %s, python_argdefs: %s", + kernel.args.cpp_argdefs(DTYPE_TO_ROCM_TYPE), + kernel.args.python_argdefs(), + ) + + input_reorder = ( + self.input_reorder + if self.input_reorder is not None + else list(range(len(self.input_nodes))) + ) + expected_args = list( + unique(self.input_nodes[idx].get_name() for idx in input_reorder) + ) + expected_args.extend([self.output_node.get_name()]) + assert list(call_args)[: len(expected_args)] == expected_args, ( + call_args, + expected_args, + ) + + size_args = ( + self.size_args() if hasattr(self, "size_args") else () + ) # subclass should define def size_args() + size_args_ints = [ + V.graph.sizevars.size_hint(arg) for arg in size_args + ] # resolve to ints for benchmarking + # The runtime args come right after the size args + runtime_args = self.get_runtime_arg_values(**kwargs) + extra_args = size_args_ints + runtime_args + bmreq = ROCmBenchmarkRequest( + kernel_name=kernel_name, + input_tensor_meta=TensorMeta.from_irnodes(self.input_nodes), + output_tensor_meta=TensorMeta.from_irnodes(self.output_node), + extra_args=extra_args, + source_code=code, + ) + + def make_kernel_render( + template_node: ROCmTemplateBuffer, + epilogue_nodes: Optional[Sequence[IRNode]] = None, + ): + kernel = ROCmTemplateKernel( + kernel_name="KERNEL_NAME", + runtime_arg_info=self.get_runtime_arg_info(), + runtime_arg_values=self.get_runtime_arg_values(**kwargs), + ) + render = functools.partial( + self.render, + kernel=kernel, + template_buffer_node=template_node, + epilogue_nodes=epilogue_nodes, + **kwargs, # includes "op" argument in case of CUTLASSGemmTemplate + ) + return kernel, render + + return ROCmTemplateCaller( + kernel_hash_name, + self.name, + self.input_nodes, + self.output_node.get_layout(), + make_kernel_render, + bmreq, + self, + kwargs, + ) + + def header(self) -> IndentedBuffer: + res = IndentedBuffer() + res.splice( + """ + #include + #include + #include + #include + #include + """ + ) + return res + + def globals(self) -> IndentedBuffer: + res = IndentedBuffer() + res.splice( + """ + // We compile all models with -fvisibility=hidden. Any symbols that need to be + // exposed in the final shared library must be declared with PT_EXPORT to make + // them visible. + #ifdef __GNUC__ // Applies to any compiler with GNU extensions (clang and g++) + #define PT_EXPORT __attribute__((__visibility__("default"))) + #else + #ifdef _WIN32 + #define PT_EXPORT __declspec(dllexport) + #else + #define PT_EXPORT + #endif + #endif + """ + ) + return res + + def render(self, **kwargs) -> str: + raise NotImplementedError + + def get_runtime_arg_info(self) -> list[ArgInfo]: + return [] + + def get_runtime_arg_values(self, **kwargs) -> list[Any]: + return [] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_template_buffer.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_template_buffer.py new file mode 100644 index 0000000000000000000000000000000000000000..9c90d71c19980279f13cad86d7385825ba7212c9 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_template_buffer.py @@ -0,0 +1,27 @@ +from collections.abc import Callable, Sequence +from typing import TypeVar +from typing_extensions import ParamSpec + +from ...ir import Buffer, Layout, TemplateBuffer + + +_P = ParamSpec("_P") +_T = TypeVar("_T") + + +class ROCmTemplateBuffer(TemplateBuffer): + def __init__( + self, + layout: Layout, + inputs: Sequence[Buffer], + make_kernel_render: Callable[_P, _T], + workspace_size: int, + template: "ROCmTemplate", # type: ignore[name-defined] # noqa: F821 + ) -> None: + super().__init__(layout, inputs, make_kernel_render) + # Global memory (in bytes) needed for this template. + self.workspace_size = workspace_size + self.template = template + + def get_workspace_size(self) -> int: + return self.workspace_size if self.workspace_size is not None else 0 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..36871ac5c7f8fcf0a8b91a143168ab1b90530b0b --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/rocm/rocm_utils.py @@ -0,0 +1,17 @@ +# mypy: allow-untyped-defs + + +import torch + +from ..cpp_utils import DTYPE_TO_CPP + + +DTYPE_TO_ROCM_TYPE = { + **DTYPE_TO_CPP, + torch.float16: "uint16_t", + torch.float8_e4m3fnuz: "uint8_t", + torch.float8_e5m2fnuz: "uint8_t", + torch.float8_e4m3fn: "uint8_t", + torch.float8_e5m2: "uint8_t", + torch.bfloat16: "uint16_t", +} diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/segmented_tree.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/segmented_tree.py new file mode 100644 index 0000000000000000000000000000000000000000..d6e5c86d18109d36ee8b9595d0bce48685845f54 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/segmented_tree.py @@ -0,0 +1,242 @@ +from collections.abc import Callable +from typing import Generic, Optional, TypeVar + + +T = TypeVar("T") + + +def _value_or(opt: Optional[T], default: T) -> T: + return opt if opt is not None else default + + +class SegmentedTree(Generic[T]): + def __init__( + self, + values: list[T], + update_op: Callable[[T, T], T], + summary_op: Callable[[T, T], T], + identity_element: T, + ): + """ + Initialize a segment tree with the given values and operations. + + Args: + values: list of initial values + update_op: Function to apply when updating a value (e.g., addition) + summary_op: Function to summarize two values (e.g., min, max, sum) + identity_element: Identity element for the summary_op (e.g., 0 for sum, float('inf') for min) + + Raises: + ValueError: If the input values list is empty + """ + if not values: + raise ValueError("Cannot create a segment tree with empty values list") + + self.n = len(values) + self.update_op = update_op + self.summary_op = summary_op + self.identity = identity_element + + # Size of segment tree array (next power of 2 * 2) + # The tree follows a standard heap layout where + # node `n`'s children are at `2*n` and `2*n+1`. + # Index 0 is unused. + self.size = 1 + while self.size < self.n: + self.size *= 2 + self.size *= 2 + + # Initialize tree and lazy arrays + self.tree = [identity_element] * self.size + # The lazy array contains updates to the given node + # Upon update, we only push updates to the top-most + # nodes that fully receive the update. We then + # propagate the update down as required (i.e., when + # we receive an interval query that neither fully + # contains the node nor fully doesn't contain the + # node + self.lazy: list[Optional[T]] = [None] * self.size + + # Build the tree + self._build(values, 1, 0, self.n - 1) + + def _build(self, values: list[T], node: int, start: int, end: int) -> None: + """ + Build the segment tree recursively. + + Args: + values: Original array of values + node: Current node index in the segment tree + start: Start index of the segment + end: End index of the segment + """ + if start == end: + # Leaf node + if start < len(values): + self.tree[node] = values[start] + return + + mid = (start + end) // 2 + left_child = 2 * node + right_child = 2 * node + 1 + + # Recursively build left and right subtrees + self._build(values, left_child, start, mid) + self._build(values, right_child, mid + 1, end) + + # Update current node with summary of children + self.tree[node] = self.summary_op(self.tree[left_child], self.tree[right_child]) + + def _children(self, node: int) -> list[int]: + return [2 * node, 2 * node + 1] + + def _push_lazy(self, node: int, start: int, end: int) -> None: + """ + Push lazy updates down to children. + + Args: + node: Current node index + start: Start index of the segment + end: End index of the segment + """ + lazy_node = self.lazy[node] + if lazy_node is None: + return + + # Apply lazy update to current node + self.tree[node] = self.update_op(self.tree[node], lazy_node) + + if start != end: # Not a leaf node + # Propagate to children + for child in self._children(node): + self.lazy[child] = self.update_op( + _value_or(self.lazy[child], self.identity), lazy_node + ) + + # Clear the lazy value + self.lazy[node] = None + + def _update_range_helper( + self, node: int, start: int, end: int, left: int, right: int, value: T + ) -> None: + """ + Helper method to update a range of values in the segment tree. + + Args: + node: Current node index + start: Start index of the current segment + end: End index of the current segment + left: Start index of the range to update + right: End index of the range to update + value: Value to apply to the range + """ + # Push lazy updates before processing this node + self._push_lazy(node, start, end) + + # No overlap + if start > right or end < left: + return + + # Complete overlap + if start >= left and end <= right: + # Apply update to current node + self.lazy[node] = value + self._push_lazy(node, start, end) + return + + # Partial overlap, recurse to children + mid = (start + end) // 2 + left_child = 2 * node + right_child = 2 * node + 1 + + self._update_range_helper(left_child, start, mid, left, right, value) + self._update_range_helper(right_child, mid + 1, end, left, right, value) + + # Update current node based on children + self.tree[node] = self.summary_op(self.tree[left_child], self.tree[right_child]) + + def _query_range_helper( + self, node: int, start: int, end: int, left: int, right: int + ) -> T: + """ + Helper method to query a range of values in the segment tree. + + Args: + node: Current node index + start: Start index of the current segment + end: End index of the current segment + left: Start index of the range to query + right: End index of the range to query + + Returns: + Summary value for the range + """ + # No overlap + if start > right or end < left: + return self.identity + + # Push lazy updates before processing this node + self._push_lazy(node, start, end) + + # Complete overlap + if start >= left and end <= right: + return self.tree[node] + + # Partial overlap, recurse to children + mid = (start + end) // 2 + left_child = 2 * node + right_child = 2 * node + 1 + + left_result = self._query_range_helper(left_child, start, mid, left, right) + right_result = self._query_range_helper(right_child, mid + 1, end, left, right) + + # Combine results from children + return self.summary_op(left_result, right_result) + + def update_range(self, start: int, end: int, value: T) -> None: + """ + Update a range of values in the segment tree. + + Args: + start: Start index of the range to update (inclusive) + end: End index of the range to update (inclusive) + value: Value to apply to the range + + Raises: + ValueError: If start > end or indices are out of bounds + """ + if start > end: + raise ValueError("Start index must be less than or equal to end index") + + if start < 0 or start >= self.n: + raise ValueError(f"Start index {start} out of bounds [0, {self.n - 1}]") + + if end < 0 or end >= self.n: + raise ValueError(f"End index {end} out of bounds [0, {self.n - 1}]") + + self._update_range_helper(1, 0, self.n - 1, start, end, value) + + def summarize_range(self, start: int, end: int) -> T: + """ + Query a range of values in the segment tree. + + Args: + start: Start index of the range to query (inclusive) + end: End index of the range to query (inclusive) + + Returns: + Summary value for the range according to the summary operation + + Raises: + ValueError: If start > end or indices are out of bounds + """ + if start > end: + raise ValueError("Start index must be less than or equal to end index") + + if start < 0 or start >= self.n: + raise ValueError(f"Start index {start} out of bounds [0, {self.n - 1}]") + + if end < 0 or end >= self.n: + raise ValueError(f"End index {end} out of bounds [0, {self.n - 1}]") + + return self._query_range_helper(1, 0, self.n - 1, start, end) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/simd.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/simd.py new file mode 100644 index 0000000000000000000000000000000000000000..aff8966e5af7167eb0e2b6f7133d3397149c7436 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/simd.py @@ -0,0 +1,3127 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import collections +import contextlib +import dataclasses +import functools +import itertools +import logging +import math +import operator +import textwrap +from collections import Counter +from typing import Any, Generic, Optional, TYPE_CHECKING, Union +from typing_extensions import TypeVar + +import sympy + +import torch +import torch._logging +from torch._inductor import metrics +from torch._inductor.ir import MultiTemplateBuffer +from torch._inductor.tiling_utils import analyze_memory_coalescing +from torch.fx.experimental.symbolic_shapes import free_unbacked_symbols +from torch.fx.immutable_collections import immutable_dict +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.functions import FloorDiv, Identity, ModularIndexing +from torch.utils._sympy.symbol import ( + free_symbol_is_type, + prefix_str, + symbol_is_type, + SymT, +) + +from ..._dynamo.utils import counters +from .. import config, ir, scheduler +from ..analyze_preserves_zero_mask import prologue_preserves_zero_mask +from ..codecache import code_hash, PyCodeCache +from ..dependencies import MemoryDep, StarDep, WeakDep + + +if TYPE_CHECKING: + from collections.abc import Callable + + from ..ir import IRNode + +from ..optimize_indexing import indexing_dtype_strength_reduction +from ..runtime.coordinate_descent_tuner import CoordescTuner +from ..runtime.hints import DeviceProperties +from ..runtime.runtime_utils import green_text, last_power_of_2, yellow_text +from ..scheduler import BaseSchedulerNode, BaseScheduling, WhyNoFuse +from ..utils import ( + cache_property_on_self, + expr_fits_within_32bit, + get_dtype_size, + IndentedBuffer, + Placeholder, + prefix_is_reduction, + sympy_index_symbol, + sympy_product, + sympy_subs, + unique, +) +from ..virtualized import ops, OpsWrapper, V +from .block_analysis import BlockPatternMatcher +from .common import CSEVariable, index_prevent_reordering, Kernel, PythonPrinter +from .multi_kernel import MultiKernel, SizeHintMultiKernel +from .simd_kernel_features import ( + DisableReduction, + EnableReduction, + NodeScheduleEntry, + NodeScheduleMarker, + SIMDKernelFeatures, +) + + +if TYPE_CHECKING: + from collections.abc import Iterable, Iterator, Sequence + + from torch._inductor.tiling_utils import CoalesceVarAnalysis + + +log = logging.getLogger(__name__) +perf_hint_log = torch._logging.getArtifactLogger(__name__, "perf_hints") +schedule_log = torch._logging.getArtifactLogger(__name__, "schedule") +fusion_log = torch._logging.getArtifactLogger(__name__, "fusion") + + +pexpr = PythonPrinter().doprint + +all_prefixes = OrderedSet(["z", "y", "x", "r0_", "r1_"]) + + +def get_max_tiles(default: int = 2) -> int: + max_tiles = torch._inductor.config.triton.max_tiles + return max_tiles if max_tiles is not None else default + + +@dataclasses.dataclass +class IterationRanges: + """ + Each range tree represents multiple sets of iteration indexing + in a single tiled dimension in the output kernel. + + If you have two loops ranges one (4, 3, 2) and another (4, 6), + then the range tree will be: + 4 (i0) + 3 (i1) 6 (i3) + 2 (i2) + Where i0 is shared between both loops, but then the split into + different indexing vars. All loop ranges must iterate over + the same number of elements. + """ + + def __init__( + self, + name: str, + var_list: list[sympy.Symbol], + var_ranges: dict[sympy.Symbol, sympy.Expr], + numel: sympy.Expr, + prefix: str, + *, + kernel: SIMDKernel, + divisor=sympy.S.One, + length=sympy.S.One, + root: IterationRangesRoot, + ) -> None: + super().__init__() + self.name = name + self.var_list = var_list + self.var_ranges = var_ranges + self.numel = numel + self.prefix = prefix + self.divisor = divisor + self.length = length + self.kernel = kernel + self.root = root + + @property + @cache_property_on_self + def is_reduction(self) -> bool: + return prefix_is_reduction(self.prefix) + + def symbol(self) -> sympy.Symbol: + return sympy_index_symbol(self.name) + + @property + @cache_property_on_self + def symt(self) -> SymT: + prefix_to_symt = {prefix: symt for symt, prefix in prefix_str.items()} + return prefix_to_symt[self.prefix] + + +class IterationRangesRoot(IterationRanges): + """ + Root of a iteration range tree that represents a single + tiled dimension in the output kernel. It contains multiple + sets of iteration represented with IterationRangesEntry. + """ + + def __init__( + self, + name: str, + numel: sympy.Expr, + prefix: str, + index: int, + kernel: SIMDKernel, + pid_cache: Optional[dict[str, str]] = None, + *, + is_loop: bool, + tensor_dim: Optional[int], + grid_dim: Optional[int], + has_zdim: bool, + ) -> None: + if pid_cache is None: + pid_cache = {} + super().__init__( + name=name, + var_list=[], + var_ranges={}, + numel=numel, + prefix=prefix, + kernel=kernel, + root=self, + ) + self.index = index + # Store all the nodes in one flat list + self.nodes: dict[sympy.Expr, IterationRangesEntry] = {} + # This is for re-ordering program ID in triton mm template + # pid_cache["tl.program_id(0)"] = pid_m + self.pid_cache: dict[str, str] = pid_cache + + # True if the dimension is implemented as a single program looping over + # the full dimension (currently only used for non-persistent reduction) + # pyrefly: ignore [missing-argument] + assert not is_loop or (self.is_reduction and grid_dim is None) + self.is_loop = is_loop + # Index of corresponding dimension on triton tensors + self.tensor_dim = tensor_dim + # Index of corresponding dimension in the triton grid + self.grid_dim = grid_dim + self.has_zdim = has_zdim + + def __repr__(self) -> str: + return f"IterationRangesRoot({self.name!r}, {self.numel}, ...)" + + def cache_clear(self) -> None: + for node in self.nodes.values(): + node.cache_clear() + + def index_sym(self) -> sympy.Symbol: + return sympy_index_symbol(f"{self.prefix}index") + + def lookup(self, divisor: sympy.Expr, length: sympy.Expr) -> IterationRangesEntry: + """ + Lookup a given RangeTreeEntry, creating it if needed + """ + if V.graph.sizevars.statically_known_equals(divisor * length, self.numel): + expr = FloorDiv(self.index_sym(), divisor) + else: + expr = ModularIndexing(self.index_sym(), divisor, length) + + if expr not in self.nodes: + node = IterationRangesEntry( + f"{self.prefix}{next(V.kernel.iter_vars_count)}", + divisor, + length, + expr, + self, + ) + V.kernel.range_tree_nodes[node.symbol()] = node + self.var_list.append(node.symbol()) + self.var_ranges[node.symbol()] = length + self.nodes[expr] = node + return self.nodes[expr] + + def construct_entries( + self, lengths: list[sympy.Expr] + ) -> list[IterationRangesEntry]: + divisor = sympy.S.One + itervars = [] + for length in reversed(lengths): + itervars.append(self.lookup(divisor, length)) + divisor = divisor * length + return [*reversed(itervars)] + + def construct(self, lengths: list[sympy.Expr]) -> list[sympy.Symbol]: + return [e.symbol() for e in self.construct_entries(lengths)] + + def vars_and_sizes( + self, index: sympy.Expr + ) -> tuple[list[sympy.Symbol], list[sympy.Expr]]: + """Figure out vars from this tree used in index""" + + def get_sort_key(x: IterationRangesEntry) -> tuple[int, bool]: + """ + Gets the key for sorting nodes. When two nodes have the + same divisor, the node with length as 1 should be handled + first so the current divisor is not changed after multiplied + node.length. Returns `not length_is_one_hint` for ascending + sort. + """ + divisor_hint = V.graph.sizevars.size_hint( + x.divisor, fallback=config.unbacked_symint_fallback + ) + length_is_one_hint = ( + V.graph.sizevars.size_hint( + x.length, fallback=config.unbacked_symint_fallback + ) + == 1 + ) + return (divisor_hint, not length_is_one_hint) + + nodes = [V.kernel.range_tree_nodes.get(s) for s in index.free_symbols] + nodes = [n for n in nodes if n and n.prefix == self.prefix] + nodes.sort(key=lambda x: get_sort_key(x)) + divisor = sympy.S.One + index_vars = [] + sizes = [] + + def add(node): + nonlocal divisor + index_vars.append(node.symbol()) + sizes.append(node.length) + divisor = divisor * node.length + + for node in nodes: + if not V.graph.sizevars.statically_known_equals(node.divisor, divisor): + # fill in unused index var + add(self.lookup(divisor, FloorDiv(node.divisor, divisor))) + divisor = node.divisor + add(node) + if not V.graph.sizevars.statically_known_equals(self.numel, divisor): + # fill in unused index var + add(self.lookup(divisor, FloorDiv(self.numel, divisor))) + + return [*reversed(index_vars)], [*reversed(sizes)] + + +class IterationRangesEntry(IterationRanges): + def __init__( + self, + name: str, + divisor: sympy.Expr, + length: sympy.Expr, + expr: sympy.Expr, + parent: IterationRanges, + ) -> None: + super().__init__( + name=name, + numel=parent.numel / length, + var_list=parent.var_list, + var_ranges=parent.var_ranges, + prefix=parent.prefix, + divisor=divisor, + length=length, + kernel=parent.kernel, + root=parent.root, + ) + self.parent = parent + self.codegen = functools.lru_cache(None)(self._codegen) + self.expr = expr + + def __repr__(self) -> str: + return f"IterationRangesEntry({self.name}, {self.divisor}, {self.length}, {self.expr}, {self.var_ranges})" + + def set_name(self, name: str) -> None: + self.codegen = lambda: name # type: ignore[assignment] + self.codegen.cache_clear = lambda: None # type: ignore[method-assign] + self.name = name + + def cache_clear(self) -> None: + self.codegen.cache_clear() + + def _codegen(self) -> str: + V.kernel.codegen_iteration_ranges_entry(self) + return self.name + + def precomputed_args(self) -> list[sympy.Expr]: + # for dynamic shapes, find parts of indexing expressions that have to be precomputed + precomputed_args: list[sympy.Expr] = [] + if isinstance(self.expr, sympy.Symbol): + return precomputed_args + assert isinstance(self.expr, (FloorDiv, ModularIndexing)), type(self.expr) + for arg in self.expr.args[1:]: + if not isinstance(arg, (sympy.Integer, sympy.Symbol)): + symbols = arg.free_symbols + if len(symbols) > 0 and all( + symbol_is_type(s, SymT.SIZE) for s in symbols + ): + precomputed_args.append(arg) + return precomputed_args + + def __hash__(self) -> int: + return hash(self.name) + + def __eq__(self, other: object) -> bool: + assert isinstance(other, IterationRangesEntry) + return self.name == other.name + + +def constant_repr(value: Union[int, float]) -> str: + if value == float("inf"): + return 'float("inf")' + elif value == float("-inf"): + return 'float("-inf")' + elif math.isnan(value): + return 'float("nan")' + return repr(value) + + +CSEVariableType = TypeVar("CSEVariableType", bound=CSEVariable, default=CSEVariable) + + +@dataclasses.dataclass +class PartialAccumulate: + buffer_name: str + reduction_type: str + value: Any + + +class SIMDKernel(Kernel[CSEVariableType], Generic[CSEVariableType]): + """ + Common base class for Triton/Halide codegen which both use flattened indexing rather than loop nests. + """ + + sexpr: Callable[[sympy.Expr], str] = pexpr + kexpr: Callable[[sympy.Expr], str] + allow_block_ptr: bool = False + # pyrefly: ignore [bad-override] + kernel_name: str + + def __init__( + self, + tiling: dict[str, sympy.Expr], + features: SIMDKernelFeatures, + pid_cache: Optional[dict[str, str]] = None, + override_persistent_reduction: Optional[bool] = None, + override_cooperative_reduction: Optional[bool] = None, + tiling_scores: Optional[dict[str, sympy.Expr]] = None, + mix_order_reduction: bool = False, + ) -> None: + if pid_cache is None: + pid_cache = {} + super().__init__() + self.features = features + self.mutations = features.get_mutations() + self.body = IndentedBuffer() + self.indexing_code = IndentedBuffer() + self.numels = { + prefix: V.graph.sizevars.simplify(val) for prefix, val in tiling.items() + } + self.range_trees: list[IterationRangesRoot] = [] + self.range_tree_nodes: dict[sympy.Symbol, IterationRangesEntry] = {} + self.iter_vars_count = itertools.count() + self.inside_reduction = features.is_reduction() + self.cooperative_reduction: bool = ( + override_cooperative_reduction + if override_cooperative_reduction is not None + else self.should_use_cooperative_reduction() + ) + self.tiling_scores: Optional[dict[str, sympy.Expr]] = tiling_scores + self.tiling: dict[str, sympy.Expr] = tiling + self.persistent_reduction: bool = ( + override_persistent_reduction + if override_persistent_reduction is not None + else self.should_use_persistent_reduction() + ) + self.mix_order_reduction: bool = mix_order_reduction + self.no_x_dim = self.want_no_x_dim() + self.code_hash: Optional[str] = None + # Info to enable multiple store_output calls for epilogue subtiling + self.store_output_ctr = itertools.count() + self.is_native_matmul = False + if config.triton.native_matmul: + for node in self.features.node_schedule: + if ( + isinstance(node, scheduler.SchedulerNode) + and isinstance(node.node, ir.ComputedBuffer) + and node.node.get_reduction_type() == "dot" + ): + self.is_native_matmul = True + break + + # define this in a closure to make cache local to object + @functools.cache + def simplify_indexing(index: sympy.Expr): + index = V.graph.sizevars.simplify_with_ranges(index, self.var_ranges()) + for tree in self.range_trees: + index = self.combine_contiguous_dims(index, tree) + + return self.combine_modular_indexing_pairs(index) + + self.simplify_indexing = simplify_indexing + self.initialize_range_tree(pid_cache) + + self.rsplit_size = 0 + self.saved_partial_accumulate: list[PartialAccumulate] = [] + + def _get_store_output_subgraph_name(self, i: int) -> str: + return f"" + + def get_store_output_count(self): + total = next(self.store_output_ctr) + self.store_output_ctr = itertools.count(start=total - 1, step=1) + return total + + @property + @cache_property_on_self + def num_reduction_dims(self) -> int: + return sum(prefix_is_reduction(prefix) for prefix in self.numels) + + def dtype_to_str(self, dtype: torch.dtype) -> str: + raise NotImplementedError + + def get_index_dtype_as_torch_dtype(self) -> torch.dtype: + return self.features.select_index_dtype() + + @property + def index_dtype(self) -> str: + return self.dtype_to_str(self.get_index_dtype_as_torch_dtype()) + + def want_no_x_dim(self) -> bool: + return False + + def construct_range_trees( + self, + pid_cache: Optional[dict[str, str]], + inside_reduction: bool, + is_reduction: bool, + numels: dict[str, sympy.Expr], + no_x_dim: bool, + ) -> list[IterationRangesRoot]: + active_prefixes = OrderedSet( + prefix for prefix in all_prefixes if prefix in numels + ) + no_r_dim = not inside_reduction or not is_reduction + + def filtered_index_map(seq, mask) -> dict[Any, int]: + return { + val: idx for idx, val in enumerate(val for val in seq if val in mask) + } + + grid_dims = ["x", "y", "z"] + pointwise_tensor_dims = list(reversed(grid_dims)) + reduction_dims = ["r0_", "r1_"] + if no_x_dim: + tensor_dims = reduction_dims + elif no_r_dim: + tensor_dims = pointwise_tensor_dims + else: + tensor_dims = pointwise_tensor_dims + reduction_dims + + # Filter out unused tensor dims. + # Convert to dicts for O(1) index lookup. + tensor_dim_map = filtered_index_map(tensor_dims, active_prefixes) + grid_dim_map = filtered_index_map(grid_dims, all_prefixes) + + range_trees = [] + for i, prefix in enumerate(active_prefixes): + is_reduction = prefix_is_reduction(prefix) + tensor_dim = tensor_dim_map.get(prefix) + grid_dim = grid_dim_map.get(prefix) + index = i if grid_dim is None else grid_dim + range_trees.append( + IterationRangesRoot( + f"{prefix}index", + numels[prefix], + prefix, + index, + self, # type: ignore[arg-type] + pid_cache=pid_cache, + is_loop=is_reduction and not self.persistent_reduction, + tensor_dim=tensor_dim, + grid_dim=grid_dim, + has_zdim="z" in numels, + ) + ) + return range_trees + + def initialize_range_tree(self, pid_cache: dict[str, str]) -> None: + range_trees = self.construct_range_trees( + pid_cache, + self.inside_reduction, + self.features.is_reduction(), + self.numels, + self.no_x_dim, + ) + self.range_trees.extend(range_trees) + + def finalize_indexing(self, indices: Sequence[sympy.Expr]) -> None: + """ + Hook called right before codegen with every index that will be + used in the fused kernel. + """ + + def store_reduction(self, name: str, index: sympy.Expr, value: CSEVariable) -> None: + prior = self.inside_reduction + self.inside_reduction = False + try: + return self.store(name, index, value) + finally: + self.inside_reduction = prior + + def should_use_cooperative_reduction(self) -> bool: + return False # defined in subclass + + def should_use_persistent_reduction(self) -> bool: + return False # defined in subclass + + def var_ranges(self) -> dict[sympy.Symbol, sympy.Expr]: + return dict( + itertools.chain.from_iterable( + tree.var_ranges.items() for tree in self.range_trees + ) + ) + + def triton_tensor_ndim(self) -> int: + return sum(int(tree.tensor_dim is not None) for tree in self.range_trees) + + def indexing_size_str(self, i: int) -> str: + sizes = ["None"] * self.triton_tensor_ndim() + sizes[i] = ":" + return f"[{', '.join(sizes)}]" + + def dense_size_list(self) -> list[str]: + sizes = ["1"] * self.triton_tensor_ndim() + for tree in self.range_trees: + if tree.tensor_dim is None: + continue + + # pyrefly: ignore [missing-argument] + if not tree.is_reduction or self.inside_reduction: + sizes[tree.tensor_dim] = f"{tree.prefix.upper()}BLOCK" + return sizes + + def create_constant_mask(self, entry) -> str: + x = entry.prefix + if entry.tensor_dim is None: + sizestr = self.dense_size_str() + return f"{x}mask = tl.full({sizestr}, True, tl.int1)" + sizes = ["None"] * self.triton_tensor_ndim() + sizes[entry.tensor_dim] = ":" + suffix = ", ".join(sizes) + out = f"{x}mask = tl.full([{x.upper()}BLOCK], True, tl.int1)[{suffix}]" + return out + + def dense_size_str(self) -> str: + sizes = self.dense_size_list() + return f"[{', '.join(sizes)}]" + + def combine_modular_indexing_pairs(self, index: sympy.Expr) -> sympy.Expr: + if not isinstance(index, ModularIndexing): + return index + x = index.args[0] + if (tree_node := self.range_tree_nodes.get(x)) is None: + return index + new_index = sympy_subs(index, {x: tree_node.expr}) + new_index = V.graph.sizevars.combine_modular_indexing_pairs(new_index) + # the index now contains xindex/etc, which is nonstandard, fix it up + return sympy_subs( + new_index, + { + tree_node.root.index_sym(): tree_node.root.lookup( + sympy.S.One, tree_node.root.numel + ).symbol() + }, + ) + + def combine_contiguous_dims( + self, index: sympy.Expr, tree: IterationRangesRoot + ) -> sympy.Expr: + if expand_res := V.graph.sizevars.expand_floor_div(index): + new_index, denominator = expand_res # type: ignore[misc] + return FloorDiv(self._combine_contiguous_dims(new_index, tree), denominator) + else: + return self._combine_contiguous_dims(index, tree) + + def _combine_contiguous_dims( + self, index: sympy.Expr, tree: IterationRangesRoot + ) -> sympy.Expr: + """ + More aggressive simplification to merge contiguous dims + """ + if isinstance(index, (sympy.Integer, sympy.Symbol)): + return index + index_vars, sizes = tree.vars_and_sizes(index) + if len(sizes) <= 1: + return index + new_sizes, reindex, _prune = V.graph.sizevars._simplify_loops( + index_vars, sizes, index_prevent_reordering([index], index_vars, sizes) + ) + if new_sizes == sizes: + return index + new_index_vars = tree.construct(new_sizes) + new_index = sympy_subs(index, dict(zip(index_vars, reindex(new_index_vars)))) + return new_index + + def disable_reduction(self) -> contextlib.AbstractContextManager[None]: + should_flush = self.range_trees[-1].is_loop or self.cooperative_reduction + + @contextlib.contextmanager + def ctx(): + if not self.features.is_reduction(): + assert not self.inside_reduction + yield + return + if should_flush: + # calling codegen_body() will flush all the pending buffers + # and write out a reduction loop + self.codegen_body() + self.inside_reduction = False + try: + yield + if should_flush: + # flush out any code before opening the next loop + self.codegen_body() + finally: + self.inside_reduction = True + + return ctx() + + def set_ranges(self, *lengths: sympy.Expr) -> list[sympy.Symbol]: + assert len(lengths) == len(self.range_trees) + return [ + ranges.construct(length) + for length, ranges in zip(lengths, self.range_trees) + ] + + @staticmethod + def _split_iteration_ranges( + groups: Iterable[sympy.Expr], lengths: Sequence[Sequence[sympy.Expr]] + ) -> tuple[ + list[list[sympy.Expr]], list[list[Callable[[list[sympy.Expr]], sympy.Expr]]] + ]: + # Special case: if a node's sizes are ([], []), there's nothing to split. + if all(len(length) == 0 for length in lengths): + return [[] for group in groups], [] + + sv = V.graph.sizevars + new_ranges: list[list[sympy.Expr]] = [[] for _ in groups] + remaining = [sv.simplify(g) for g in groups] + var_count = itertools.count() + + def add_range(i: int, expr: sympy.Expr) -> int: + expr = sv.simplify(expr) + if not sv.statically_known_multiple_of(remaining[i], expr): + raise CantSplit + # guard on the last item out + remaining[i] = FloorDiv(remaining[i], expr) + new_ranges[i].append(expr) + return next(var_count) + + def make_combined( + sizes: list[sympy.Expr], idxs: list[int] + ) -> Callable[[list[sympy.Expr]], sympy.Expr]: + """ + Builds the nested expression: + ((...((s1*v[i1] + v[i2]) * s2 + v[i3]) ... ) * sk + v[i(k+1)]) + """ + assert len(idxs) == len(sizes) + 1 + + def getter(flat_vars: list[sympy.Expr]) -> sympy.Expr: + expr = flat_vars[idxs[0]] + for s, idx in zip(sizes, idxs[1:]): + expr = s * expr + flat_vars[idx] + return expr + + return getter + + return_getters_groups = [] + current_group = 0 + for length_group in lengths: + return_getters = [] + for size in length_group: + if sv.statically_known_equals(size, 1): # type: ignore[arg-type] + return_getters.append(lambda _: sympy.S.Zero) + continue + + while current_group < len(remaining) and sv.statically_known_equals( + remaining[current_group], + 1, # type: ignore[arg-type] + ): + # scroll to next group with remaining elements + current_group += 1 + + # During native matmul on bmm, we enforce tiling order (z, y, x, r). + # When fusing a bmm node with loop (z, y, x, r) with a pw node + # of shape (z*y*x, 1), we need to split the pw iteration range + # into three dimensions. + # The group becomes [z, y, x, 1], with lengths ([z*y*x], []). + # In this case, we decompose the combined size z*y*x into three + # consecutive groups. Previously, _split_iteration_ranges supported + # splitting into at most two dimensions, but we now extend it to do + # three splits when the total size is divisible by all three. + + # is group having (z,y,x,r=1) form? + is_bmm_then_pw = len(remaining) == 4 and remaining[-1] == 1 + if ( + current_group + 2 < len(remaining) + and sv.statically_known_gt( + size, remaining[current_group] * remaining[current_group + 1] + ) + and is_bmm_then_pw + ): + # need to break size in three + if not sv.statically_known_multiple_of( + size, remaining[current_group] * remaining[current_group + 1] + ): + raise CantSplit + + size1 = remaining[current_group] + size2 = remaining[current_group + 1] + size3 = FloorDiv(size, size1 * size2) + return_getters.append( + make_combined( + [size2, size3], + [ + add_range(current_group, size1), + add_range(current_group + 1, size2), + add_range(current_group + 2, size3), + ], + ) + ) + + # Two-dimensional tiling: split size across current_group and next group. + elif current_group + 1 < len(remaining) and ( + sv.statically_known_gt(size, remaining[current_group]) + or + # statically_known_gt(size, remaining) may return False for symbolic + # expressions like 64*u0 vs u0, because both could be 0. Similarly for + # backed expressions like s25*(((s70 - 5)//4)) - s25 and + # (s25*(((s70 - 5)//4)) - s25)*64. + # We want to assume tensor sizes are not 0 and pass the gt + # using the following logic. + # + # if A//B = C and C >= 1 + # then A = B * C + R + # and assuming A!=0 + # A must be > B . + # + sv.statically_known_gt(FloorDiv(size, remaining[current_group]), 1) + ): + # need to break size in two + if not sv.statically_known_multiple_of( + size, remaining[current_group] + ): + raise CantSplit + + size1 = remaining[current_group] + size2 = FloorDiv(size, remaining[current_group]) + return_getters.append( + make_combined( + [size2], + [ + add_range(current_group, size1), + add_range(current_group + 1, size2), + ], + ) + ) + else: + if current_group < len(remaining): + return_getters.append( + operator.itemgetter(add_range(current_group, size)) + ) + return_getters_groups.append(return_getters) + + assert all(V.graph.sizevars.size_hint(s) == 1 for s in remaining), ( + f"failed to set ranges {remaining} {lengths}" + ) + return new_ranges, return_getters_groups + + @classmethod + def prepare_split_iteration_lengths( + cls, + groups: Iterable[sympy.Expr], + lengths: Sequence[Sequence[sympy.Expr]], + reduction_numel: sympy.Expr = sympy.S.One, + ) -> Sequence[Sequence[sympy.Expr]]: + "Fill in the reduction numel of lengths if missing" + sizevars = V.graph.sizevars + if len(lengths[1]) == 0 and ( + not sizevars.statically_known_equals(reduction_numel, sympy.S.One) + and sizevars.statically_known_equals( + sympy_product(groups), + sympy_product(lengths[0]) * reduction_numel, + ) + ): + return (lengths[0], [reduction_numel]) + + return lengths + + @classmethod + def is_compatible( + cls, + groups: Iterable[sympy.Expr], + lengths: Sequence[Sequence[sympy.Expr]], + reduction_numel: sympy.Expr = sympy.S.One, + ) -> bool: + lengths = cls.prepare_split_iteration_lengths(groups, lengths, reduction_numel) + + try: + cls._split_iteration_ranges(groups, lengths) + return True + except CantSplit: + return False + + def split_and_set_ranges( + self, lengths: Sequence[Sequence[sympy.Expr]] + ) -> list[list[sympy.Expr]]: + """ + Split and set iteration ranges for the kernel based on the provided lengths. + + This method maps the kernel's tiling structure to the node's iteration space, + handling both pointwise and reduction dimensions appropriately. + + Args: + lengths: A sequence of sequences of symbolic expressions representing + the sizes of different dimensions for each node. + + Returns: + A list of lists of symbolic expressions representing the mapped + iteration variables for each dimension. + """ + # Create a dictionary mapping each range tree prefix to its total number of elements + tiling = {rt.prefix: rt.numel for rt in self.range_trees} + + # If we're not inside a reduction loop, set all reduction dimensions to 1 + # This effectively disables reduction dimensions when not needed + if not self.inside_reduction: + for prefix in tiling: + if prefix_is_reduction(prefix): + tiling[prefix] = sympy.S.One + + # Extract the values from the tiling dictionary to create groups + groups = [*tiling.values()] + + # Map the kernel's group structure to the node's sizes and set the ranges + # using the set_ranges method, returning the resulting iteration variables + return self.map_kernel_groups_to_node_sizes(groups, lengths, self.set_ranges) + + @classmethod + def map_kernel_groups_to_node_sizes( + cls, + groups: Sequence[sympy.Expr], + lengths: Sequence[Sequence[sympy.Expr]], + set_ranges, + ) -> list[list[sympy.Expr]]: + """ + We may want to fuse `for i0 in s0*s1` into a tiled kernel with groups (s0, s1). + + To do this we need to split up the iteration space of i0 into something like: + for i1 in s0: + for i2 in s1: + i0 = i1*s1 + i2 + .... + + This function matches and resplits lengths to the groups of + this kernel to enable tiled + non-tiled fusions. + """ + if len(lengths) == len(groups) and all( + V.graph.sizevars.simplify(sympy_product(x) - g) == 0 + for x, g in zip(lengths, groups) + ): + return set_ranges(*lengths) + + new_ranges, return_getters_groups = cls._split_iteration_ranges(groups, lengths) + itervars = [*itertools.chain.from_iterable(set_ranges(*new_ranges))] + return [[fn(itervars) for fn in fns] for fns in return_getters_groups] + + def is_indirect_indexing(self, index: sympy.Expr) -> bool: + # tmpX means indirect indexing + return free_symbol_is_type(index, SymT.TMP) + + def is_broadcasted(self, index: sympy.Expr) -> bool: + # Note. This may not be correct when there is indirect indexing + if self.is_indirect_indexing(index): + return False + + index_numels = [1] * len(self.numels) + for symbol in index.free_symbols: + if symbol not in self.range_tree_nodes: + # Non-iterated variables, e.g. strides + continue + entry = self.range_tree_nodes[symbol] # type: ignore[index] + assert isinstance(entry.parent, IterationRangesRoot) + index_numels[entry.parent.index] *= entry.length + + # If the index variables only iterate over a subset of the kernel + # numels, then it must be broadcasted. + simplify = V.graph.sizevars.simplify + return any( + simplify(idx_range) != simplify(iter_range) # type: ignore[arg-type] + for idx_range, iter_range in zip(index_numels, self.numels.values()) + ) + + def index_to_str(self, index: sympy.Expr) -> str: + """ + Convert an index expr to a string that can be used in output code. + e.g. a sympy expression "s2" may actually appear as "ks1" in the generated kernel. + + Index expressions often need to be passed in as arguments to the triton kernel. + Rename_indexing and codegen_indexing keep track of the needed indices and add + new parameters to the function signature. + """ + if isinstance(index, list): + return f"[{', '.join(map(self.index_to_str, index))}]" + return self.kexpr(self.rename_indexing(index)) # type: ignore[call-arg] + + def prepare_indexing( + self, + index: sympy.Expr, + ) -> sympy.Expr: + index = self.simplify_indexing(index) + index = sympy_subs(index, V.graph.sizevars.precomputed_replacements) + # if simple replacements didn't get rid of floor/ceil, try full subs + if len(index.atoms(sympy.floor)) or len(index.atoms(sympy.ceiling)): + index = index.subs(V.graph.sizevars.precomputed_replacements) + # last resort, if no range vars are in the expr, hoist it + # TODO instead of trying to blindly find complicated exprs, we should hoist the + # inputs/outputs sizes and strides, but at the time indexing is generated + # kernel inputs and outputs are not set yet, we'd need a deeper refactor + # to do it this way + + if len(index.atoms(sympy.ceiling)): + for a in index.atoms(sympy.ceiling): + # for nested exprs, atoms yields top level first (?) + # so if everything goes fine, lower level replacements will come up empty + symbols = a.free_symbols + if len(symbols) > 0 and all( + symbol_is_type(s, (SymT.SIZE, SymT.PRECOMPUTED_SIZE)) + for s in symbols + ): + replacements = {a: V.graph.sizevars.lookup_precomputed_size(a)} + index = sympy_subs(index, replacements) + + simp_index = self.simplify_indexing(index) + + # Now that we are done simplifying we can unwrap Identity so that downstream handling + # for its contained expression will work. previously, tl.full wrapping of sympy.Integer + # would not occur + simp_index = ( + simp_index if not isinstance(simp_index, Identity) else simp_index.args[0] + ) + + return self.codegen_indexing(simp_index) + + def active_range_trees(self) -> list[IterationRangesRoot]: + return [ + t + for t in self.range_trees + # pyrefly: ignore [missing-argument] + if not t.is_reduction or self.inside_reduction + ] + + def codegen_indexing(self, expr: sympy.Expr) -> sympy.Expr: + expr = V.graph.sizevars.simplify_with_ranges(expr, self.var_ranges()) + for sym in sorted(expr.free_symbols, key=str): + if sym in self.range_tree_nodes: + # if indexing expression is complicated, we precompute it on the host side + # and send the result as a kernel argument + replacements = {} + for ps in self.range_tree_nodes[sym].precomputed_args(): # type: ignore[index] + replacements[ps] = V.graph.sizevars.lookup_precomputed_size(ps) + if len(replacements) > 0: + self.range_tree_nodes[sym].expr = sympy_subs( # type: ignore[index] + self.range_tree_nodes[sym].expr, + replacements, # type: ignore[index] + ) + self.range_tree_nodes[sym].codegen() # type: ignore[index] + return expr + + def codegen_nan_check(self) -> None: + raise NotImplementedError("NYI: codegen_nan_check") + + def deallocate_workspaces(self): + wrapper = V.graph.wrapper_code + for ws in reversed(self.args.workspace_args): + wrapper.generate_workspace_deallocation(ws) + + def call_kernel( + self, name: str, node: Optional[IRNode] = None, deallocate_ws: bool = True + ) -> None: + raise NotImplementedError("NYI: call_kernel") + + @contextlib.contextmanager + def mask_loads( + self, mask: Union[str, OpsWrapper], value: Union[int, float] + ) -> Iterator[str]: + """Context manager to add an additional mask to tl.load/store""" + prior = self._load_mask + prior_val = self._load_other + if prior: + mask = ops.logical_and(mask, prior) + + mask = OpsWrapper._unwrap(mask) + self._load_mask = mask + self._load_other = value + try: + # TODO(jansel): do we need a reshape here? + yield mask + finally: + self._load_mask = prior + self._load_other = prior_val + + def get_strides_of_load(self, index: sympy.Expr) -> dict[sympy.Symbol, sympy.Expr]: + """ + This gets the stride of the index for each of the tiling variables + (technically, it does it at index 0) + + For example, if + xindex = x0 + 512*x1 + 1024*r0 + x0 = (xindex//512) + x1 = (xindex % 512) + r0 = rindex // 1024 + + this function would return + {xindex: 512, rindex: 1024} + """ + index_to_tile_indexes = {k: v.expr for k, v in self.range_tree_nodes.items()} + index_in_tile_vars = sympy_subs(index, index_to_tile_indexes) # type: ignore[arg-type] + strides = {} + for range_tree in self.range_trees: + s = sympy_index_symbol(range_tree.name) + strides[s] = sympy_subs(index_in_tile_vars, {s: 1}) - sympy_subs( + index_in_tile_vars, {s: 0} + ) + return strides + + @staticmethod + def _map_tuple_or_scalar(fn, value): + if isinstance(value, tuple): + return tuple(map(fn, value)) + return fn(value) + + def estimate_flops(self) -> Optional[int]: + flops = [ + node.estimate_flops() + for node in NodeScheduleMarker.only_nodes(self.features.node_schedule) + ] + return sum(filter(None, flops)) + + def estimate_kernel_num_bytes(self): + """ + Try the best to estimate the total size (in bytes) of the + kernel's inputs and outputs, which is used for estimating the memory + throughput of this kernel. This information is used for checking how + far we are from the peak memory bandwidth. It's important that + we want to avoid overestimating the sizes of the inputs and outputs, + because it can wrongfully give us a very large memory traffic value, + which may be even larger than the theoretical bandwidth and thus + become very misleading. This is particularly problematic for cases + where we slice some inputs. In those cases, we should only count + the size of the "slices" instead of the original inputs, because + only the slices contribute to the real memory traffic. + """ + nbytes = [] + ninplace_args = len(unique(self.args.inplace_buffers.values())) + _, call_args, _, _ = self.args.python_argdefs() + buf_accesses = self.features.buf_accesses() + + # For pointwise and reduction kernels, this is the upper-bound numels + # for the output buffer. + # FIXME: This is not exactly right for cases like below: + # def foo(tensor0, tensor1): + # x0 = narrow(tensor0) + # return cat(x0, tensor1) + # For this example, we will end up overestimate the size for the + # slice s0. Potentially, we could have precise inputs information + # if we maintained the original inputs of the Pointwise kernel created + # for the "cat". However, I think it might be a bit overwhelming that + # we add such complexity only for handling some particular cases for + # benchmarking. + out_numel = V.graph.sizevars.size_hint( + sympy_product(self.numels.values()), + fallback=config.unbacked_symint_fallback, + ) + for i, arg in enumerate(call_args): + # "buf" may be narrowed. In this case, the number of memory accesses + # should be estimated based on the reinterpreted layout. + # On the other hand, buf may be broadcasted. In this case, + # counting the size of the underline storage would give us + # a better estimation in terms of memory accesses. + if arg not in buf_accesses: + nbytes.append(0) + continue + arg_numel = V.graph.get_numel(arg) + buf_size = V.graph.sizevars.size_hint( + arg_numel, fallback=config.unbacked_symint_fallback + ) + if buf_size > out_numel: + # This arg points to a buf that has been sliced. + # We need to count each individual slice to have + # a better estimation. + indices = OrderedSet[Any]() + no_index_dep_count = 0 + for dep in buf_accesses[arg]: + if isinstance(dep, (StarDep, WeakDep)): + indices.add(f"no_index_dep_{no_index_dep_count}") + no_index_dep_count += 1 + else: + indices.add(dep.index) + numel = len(indices) * out_numel + else: + numel = buf_size + dtype = V.graph.get_dtype(arg) + dtype_size = get_dtype_size(dtype) + # pyrefly: ignore [bad-argument-type] + nbytes.append(numel * dtype_size * (1 + int(i < ninplace_args))) + return sum(nbytes) + + def warn_mix_layout(self, kernel_name): + """ + Print message if the kernel have mixed layout inputs. + Only care about 4D tensor for now. + """ + if ( + len(self.args.input_buffers) == 1 + and len(self.args.output_buffers) == 1 + and len(self.args.inplace_buffers) == 0 + ): + # even if input buffer and output buffer have different layout, + # this can be a layout conversion kernel. No need to warn for + # the mix layouts. + return + + argdefs, call_args, _signature, _ = self.args.python_argdefs() + uniform_stride_order = None + # pyrefly: ignore [bad-assignment] + for arg_name in call_args: + buf = V.graph.try_get_buffer(arg_name) + if not buf: + continue + layout = buf.get_layout() + if len(layout.size) == 4: + # ignore the tensor if only 1 dimension is non-zero + if len([x for x in layout.size if x == 1]) == 3: + continue + stride_order = ir.get_stride_order(layout.stride) + if uniform_stride_order is None: + uniform_stride_order = stride_order + elif uniform_stride_order != stride_order: + msg = yellow_text( + f"Expected stride order {uniform_stride_order}, but found stride order" + + f" {stride_order} for kernel {kernel_name}" + ) + log.warning(msg) + + stride_order_list = [ + ir.get_stride_order( + V.graph.get_buffer(name).get_layout().stride + ) + if V.graph.try_get_buffer(name) + else None + for name in call_args + ] + size_list = [ + V.graph.get_buffer(name).get_layout().size + if V.graph.try_get_buffer(name) + else None + for name in call_args + ] + source_list = [ + "GraphInput" + if name in V.graph.graph_inputs + else "IntermediateBuffer" + if name in V.graph.name_to_buffer + else None + for name in call_args + ] + + argdef_names = [x.name for x in argdefs] + msg = yellow_text( + f" param names {argdef_names}\n buf names {call_args}\n strides {stride_order_list}" + + f"\n sizes {size_list}\n sources {source_list}\n" + ) + log.warning(msg) + return + msg = green_text( + f"All the inputs for the triton kernel {kernel_name} have uniform layout" + ) + log.warning(msg) + + def welford_reduce_fallback(self, dtype, value): + sum_ = ops.reduction(dtype, dtype, "sum", value) + self.inside_reduction = False + rnumel = ops.index_expr(self.features.reduction_numel, dtype) + mean = ops.truediv(sum_, rnumel) + + self.inside_reduction = True + dx = ops.sub(value, mean) + dx2 = ops.mul(dx, dx) + m2 = ops.reduction(dtype, dtype, "sum", dx2) + return OpsWrapper._unwrap((mean, m2, rnumel)) + + def prepare_softmax_twopass_fallback(self, dtype, value): + vmax = ops.reduction(dtype, dtype, "max", value) + sub = ops.sub(value, vmax) + exp = ops.exp(sub) + vsum = ops.reduction(dtype, dtype, "sum", exp) + return OpsWrapper._unwrap((vmax, vsum)) + + def codegen_kernel(self): + raise NotImplementedError + + def codegen_body(self): + pass + + def codegen_iteration_ranges_entry(self, entry: IterationRangesEntry): + pass + + +class SIMDScheduling(BaseScheduling): + """ + Single Instruction Multiple Data parent class used for fusion across + multiple different backends. + """ + + kernel_type: type[Any] = SIMDKernel # override in subclass + + def group_fn(self, sizes): + return tuple(V.graph.sizevars.simplify(sympy_product(s)) for s in sizes) + + def can_fuse(self, node1, node2): + """ + Hook called by Scheduler to determine if the Triton backend + can fuse node1 and node2. These nodes might already be + FusedSchedulerNodes. + """ + if isinstance(node1, scheduler.ForeachKernelSchedulerNode) or isinstance( + node2, scheduler.ForeachKernelSchedulerNode + ): + return scheduler.ForeachKernelSchedulerNode.can_fuse(node1, node2) + + _, (numel1, rnumel1) = node1.group + _, (numel2, rnumel2) = node2.group + why = WhyNoFuse(node1, node2) + + if node1.is_split_scan() and not node2.is_split_scan(): + if node2.is_reduction(): + why("Split scan cannot fuse with reductions") + elif node2.is_split_scan() and not node1.is_split_scan(): + if node1.is_reduction(): + why("Split scan cannot fuse with reductions") + + if node1.is_reduction() and node2.is_reduction(): + reduction_can_fuse = numel1 == numel2 and rnumel1 == rnumel2 + if not reduction_can_fuse: + from torch._inductor.scheduler import MixOrderReduction + + reduction_can_fuse = MixOrderReduction.can_fuse(node1, node2) + + if not reduction_can_fuse: + why( + "numel/rnumel mismatch (reduce) (%s, %s), (%s, %s)", + numel1, + numel2, + rnumel1, + rnumel2, + ) + + if reduction_can_fuse and ( + node1.is_native_matmul() or node2.is_native_matmul() + ): + # Ensure node1 is always the native matmul side + if not node1.is_native_matmul(): + node1, node2 = node2, node1 + + # 1. A native matmul node keeps its original loop order. + # For example: C[z,y,x] = torch.bmm(A[z,y,r], B[z,r,x]) keeps (z,y,x) order. + # (see simplify_and_reorder in ir.py) + # + # 2. Triton kernels with native matmul always tile loops as (z,y,x) + # (see get_tiling_and_scores in this file) + # + # 3. If a candidate node (node2) uses a different loop order (e.g., (z,x,y,r)), + # its tiling is incompatible with native matmul tiling (z,y,x,r). + # This means _split_iteration_ranges will fail, so these nodes should not be fused. + tiling = self.select_tiling(node1.get_nodes(), numel1, rnumel1) + if not all( + SIMDKernel.is_compatible( + tiling.values(), n2.get_ranges(), reduction_numel=rnumel1 + ) + for n2 in node2.get_nodes() + ): + why("invalid loop order and tiling for native matmul") + return False + + return reduction_can_fuse + + if not node1.is_reduction() and not node2.is_reduction(): + if not (numel1 == numel2 and rnumel1 == rnumel2): + if not node2.is_template(): + why( + "numel/rnumel mismatch (non-reduce) (%s, %s), (%s, %s)", + numel1, + numel2, + rnumel1, + rnumel2, + ) + return False + else: + # prologue fusion input sizes differ from output group + # fuse so long as this node matches the group of existing prologue nodes + for node in node2.get_nodes(): + # dont need to check epilogue nodes for prologue fusion, break after template + if node.is_template(): + break + # we would have already restricted prologue from fusing if it had multiple + # uses, so it must be fusing into this node + if not node.used_buffer_names() & node1.get_buffer_names(): + continue + _, (pro_numel, pro_rnumel) = node.group + if not (numel1 == pro_numel and rnumel1 == pro_rnumel): + why( + "numel/rnumel mismatch prologue mismatch (%s, %s), (%s, %s)", + numel1, + pro_numel, + rnumel1, + pro_rnumel, + ) + return False + + for n in (node1, node2): + if n.is_template(): + return True + + # check for a bad combined tiling + tiling1 = self.select_tiling(node1.get_nodes(), numel1, rnumel1) + tiling2 = self.select_tiling(node2.get_nodes(), numel1, rnumel1) + tiling3 = self.select_tiling( + node1.get_nodes() + node2.get_nodes(), numel1, rnumel1 + ) + if config.triton.tiling_prevents_pointwise_fusion: + cond = True + if len(tiling1) > 2: + if len(tiling2) > 2: + cond = tiling1 == tiling2 == tiling3 + else: + cond = tiling1 == tiling3 + elif len(tiling2) > 2: + cond = tiling2 == tiling3 + if not cond: + why( + "tiling mismatch (%s, %s, %s)", + tiling1, + tiling2, + tiling3, + ) + return False + + return True + + if not node1.is_reduction() and node2.is_reduction(): + assert rnumel1 == 1 and rnumel2 != 1 + if numel1 == numel2 * rnumel2: + if not all( + SIMDKernel.is_compatible((numel2, rnumel2), n.get_ranges()) + for n in node1.get_nodes() + ): + why("nodes numel/rnumel incompatibility") + return False + if ( + config.triton.tiling_prevents_reduction_fusion + and not node1.is_template() + ): + is_reduction_tiling_valid = tuple( + self.select_tiling(node1.get_nodes(), numel1).values() + ) in ( + (numel1, 1), + (numel2, rnumel2, 1), + ) + if not is_reduction_tiling_valid: + why("invalid tiling for reduction") + return is_reduction_tiling_valid + return True + + if numel1 != numel2: + why("nodes numel incompatibility") + return numel1 == numel2 + + assert node1.is_reduction() and not node2.is_reduction() + # swap args to hit the case above + return self.can_fuse_horizontal(node2, node1) + + can_fuse_vertical = can_fuse + can_fuse_horizontal = can_fuse + + def generate_node_schedule(self, nodes, numel, rnumel): + node_schedule: list[Any] = [] + done = OrderedSet[scheduler.BaseSchedulerNode]() + # Writes with a reduced shape, meaning they are only present once the + # reduction loop has ended + not_ready_yet_nodes: OrderedSet[str] = OrderedSet() + current_loop_buffer_usage: OrderedSet[str] = OrderedSet() + maybe_split_index: Optional[int] = None + + def fits_in_main_body(n): + _, (node_numel, node_rnumel) = n.group + return (node_numel == numel and node_rnumel == rnumel) or ( + node_numel == numel * rnumel and node_rnumel == 1 + ) + + def fits_outside_reduction(n): + _, (node_numel, node_rnumel) = n.group + return node_numel == numel and node_rnumel == 1 and rnumel != 1 + + def expect_improved_memory_usage(n): + for read in n.read_writes.reads: + if read.name in current_loop_buffer_usage: + return True + return False + + def schedule_node_in_loop(n): + done.add(n) + node_schedule.append(n) + current_loop_buffer_usage.update([x.name for x in n.read_writes.reads]) + + # A scan is modelled as a reduction in the scheduler but has a + # full sized output that can be used inside the loop body + if ( + n.is_reduction() + and isinstance(n, scheduler.SchedulerNode) + and isinstance(n.node, ir.ComputedBuffer) + and not isinstance(n.node.data, ir.Scan) + ): + not_ready_yet_nodes.add(n.get_name()) + else: # this node is available within the loop + current_loop_buffer_usage.update([x.name for x in n.read_writes.writes]) + + @contextlib.contextmanager + def end_current_reduction_loop(): + nonlocal maybe_split_index + if node_schedule and node_schedule[-1] is EnableReduction: + node_schedule.pop() + else: + node_schedule.append(DisableReduction) + if maybe_split_index: + node_schedule.insert(maybe_split_index, DisableReduction) + node_schedule.insert(maybe_split_index + 1, EnableReduction) + maybe_split_index = None + yield + node_schedule.append(EnableReduction) + not_ready_yet_nodes.clear() + current_loop_buffer_usage.clear() + + def requires_closing_previous_reduction(node, node_schedule): + if rnumel == 1: + return False + if not not_ready_yet_nodes & node.ancestors: + return False + assert node_schedule and not isinstance( + node_schedule[-1], (EnableReduction, DisableReduction) + ) + return bool(not_ready_yet_nodes) + + for node in nodes: + if node in done: + continue + done.add(node) + + if fits_in_main_body(node): + if requires_closing_previous_reduction(node, node_schedule): + with end_current_reduction_loop(): + pass # need to start a new reduction loop + + if current_loop_buffer_usage and not expect_improved_memory_usage(node): + # If we don't improve memory usage, then it is better to split into two loops + maybe_split_index = maybe_split_index or len(node_schedule) + else: + # Memory usage got improved, cancel the loop split + maybe_split_index = None + + schedule_node_in_loop(node) + elif fits_outside_reduction(node): + with end_current_reduction_loop(): + node_schedule.append(node) + else: + raise NotImplementedError( + f"unexpected group: ({numel}, {rnumel}) != {node.group[1]}" + ) + + return node_schedule + + def codegen_mix_order_reduction(self, node): + node1, node2 = node.node1, node.node2 + + # Make sure there are no producer/consumer relationship + assert not (node1.ancestors & node2.get_operation_names()) and not ( + node2.ancestors & node1.get_operation_names() + ) + + self._codegen_mix_order_reduction(node1, node2) + + def _split_mix_order_reduction_epilogue(self, node): + # TODO: do more validation here + nodes = node.get_nodes() + reductions = [] + epilogues = [] + for node in nodes: + if node.is_reduction(): + reductions.append(node) + else: + epilogues.append(node) + return reductions, epilogues + + def _generate_kernel_code_for_mix_order_reduction( + self, kernel_features, split_size, for_benchmark + ): + """ + for_benchmark: + True if the generated code is for benchmarking. We need make + sure benchmark harness code is generated. + """ + numel, rnumel = kernel_features.numel, kernel_features.reduction_numel + node_schedule = kernel_features.node_schedule + + kernel = self.create_kernel_choices( + kernel_features, + [{"x": numel, "r0_": rnumel}], + { + "features": kernel_features, + "tiling_scores": None, + "mix_order_reduction": True, + "override_persistent_reduction": True, + }, + )[0] + assert kernel.persistent_reduction + assert kernel.mix_order_reduction + kernel.rsplit_size = split_size + self.codegen_node_schedule_with_kernel(node_schedule, kernel) + + # allocate workspace for this kernel + _, ws_name, ws_off = kernel.args.workspace( + len(kernel.saved_partial_accumulate) + * kernel.numels["r0_"] + * ((kernel.numels["x"] + kernel.rsplit_size - 1) // kernel.rsplit_size), + False, + dtype=torch.float, + ) + assert ws_off == 0, f"{ws_off=}" + with kernel: + kernel.codegen_body() + + stack = contextlib.ExitStack() + with V.set_kernel_handler(kernel), stack: + if for_benchmark: + stack.enter_context(config.patch(benchmark_kernel=True)) + src_code = kernel.codegen_kernel() + + if for_benchmark: + # only do this if we are doing benchmarking. + # When we are generating final code, the kernel name + # should be decided differently with node type, fx node name + # etc. + src_code = src_code.replace(str(Placeholder.KERNEL_NAME), "triton_") + return kernel, ws_name, src_code + + def benchmark_codegened_module( + self, mod, n_spills_threshold=8, node_names: Optional[OrderedSet[str]] = None + ) -> tuple[float, str]: + raise NotImplementedError + + def _codegen_mix_order_reduction(self, node1, node2): + numel, rnumel = scheduler.MixOrderReduction.get_numel_rnumel(node1) + + if not V.graph.sizevars.evaluate_expr(sympy.Gt(numel, rnumel)): + return self._codegen_mix_order_reduction(node2, node1) + + def _pick_split_size(): + # the overridden has highest priority + if config.triton.mix_order_reduction_split_size is not None: + return config.triton.mix_order_reduction_split_size + + # heuristics based on number of SMs + device_prop = DeviceProperties.create(node1.get_device()) + num_sm = device_prop.multi_processor_count + estimated_num_splits = num_sm * 8 + + # split_size is decided based on hint + numel_hint = V.graph.sizevars.size_hint(numel) + split_size = max(last_power_of_2(numel_hint // estimated_num_splits), 16) + split_size = min(split_size, 128) + return split_size + + split_size = _pick_split_size() + + # pyrefly: ignore [bad-assignment] + metrics.codegen_mix_order_reduction += 1 + + assert V.graph.sizevars.evaluate_expr(sympy.Gt(numel, rnumel)) + + # split epilogue out of node2 + node2_reductions, node2_epilogue = self._split_mix_order_reduction_epilogue( + node2 + ) + + converted_nodes = [] + for subnode in node2_reductions: + subnode.cancel_reduction_split() + converted = subnode.extract_pw_from_reduction() + converted.swap_pw_red_dimension() + converted_nodes.append(converted) + node_schedule = self.generate_node_schedule( + node1.get_nodes() + converted_nodes, numel, rnumel + ) + kernel_features = SIMDKernelFeatures(node_schedule, numel, rnumel) + + # The autotuning is skipped in deterministic mode + if ( + not torch._inductor.config.deterministic + and config.triton.mix_order_reduction_split_size is None + and ( + config.triton.mix_order_reduction_autotune_split_size + or config.max_autotune + or config.coordinate_descent_tuning + ) + ): + + def _bench(candidate_split_size): + _, _, src_code = self._generate_kernel_code_for_mix_order_reduction( + kernel_features, + split_size=candidate_split_size, + for_benchmark=True, + ) + mod = PyCodeCache.load(src_code) + ms, _ = self.benchmark_codegened_module(mod) + return ms + + split_size = CoordescTuner.autotune_single_field( + _bench, + split_size, + 8, + ) + + kernel, ws_name, src_code = self._generate_kernel_code_for_mix_order_reduction( + kernel_features, + split_size=split_size, + for_benchmark=False, + ) + + # rename intermediate reduction output to final reduction + # output + is_split_reduction = bool(node2_reductions[0].node._split_size) + rename = {} + if is_split_reduction: + for subnode in node2_reductions: + bufname = subnode.get_outputs()[0].node.get_name() + username = ( + subnode.get_outputs()[0] + .users[0] + .node.get_outputs()[0] + .node.get_name() + ) + rename[bufname] = username + assert self.scheduler + self.scheduler.removed_ops.add( + subnode.get_outputs()[0].users[0].node.get_name() + ) + V.graph.removed_buffers.add(bufname) + + for partial_accum in kernel.saved_partial_accumulate: + partial_accum.buffer_name = rename.get( + partial_accum.buffer_name, partial_accum.buffer_name + ) + + kernel_name = self.define_kernel(src_code, node_schedule, kernel) + kernel.kernel_name = kernel_name + kernel.code_hash = code_hash(src_code) + + with V.set_kernel_handler(kernel): + for node in kernel_features.scheduler_nodes(): + # No need to allocate buffer for split reduction + # since we are gonna to allocate workspace to store the + # intermediate reduction reduction + if node.get_outputs()[0].node.get_name() not in rename: + node.mark_run() + + V.graph.wrapper_code.make_comment("# Call mix order reduction kernel") + self.codegen_comment(node_schedule, None) + # workspace args is still needed after the call + kernel.call_kernel(kernel.kernel_name, deallocate_ws=False) + V.graph.removed_buffers |= kernel.removed_buffers + V.graph.inplaced_to_remove |= kernel.inplaced_to_remove + + # a extra round of reduction + assert len(converted_nodes) == len(kernel.saved_partial_accumulate) + nsplit = V.graph.wrapper_code.codegen_python_sizevar( + (numel + split_size - 1) // split_size + ) + for idx, partial_accum in enumerate(kernel.saved_partial_accumulate): + buffer_name = partial_accum.buffer_name + + stride_str = f"{nsplit} * {rnumel}" + start = f"{idx} * {stride_str}" + end = f"({idx} + 1) * {stride_str}" + reduction_type2op = { + "min": "amin", + "max": "amax", + } + opname = reduction_type2op.get( + partial_accum.reduction_type, partial_accum.reduction_type + ) + + V.graph.wrapper_code.writeline( + f"{buffer_name} = {ws_name}[{start} : {end}].view({nsplit}, {rnumel}).{opname}(dim=0)", + ) + # mark the buffer as allocated, so we don't try to allocate + # it again when it's later used + V.graph.wrapper_code.allocated.add(buffer_name) + + kernel.deallocate_workspaces() + + if node2_epilogue: + self._codegen_nodes(node2_epilogue) + + self.free_buffers_in_scheduler() + + def _codegen_nodes( + self, + nodes: Sequence[scheduler.SchedulerNode], + coalesce_analysis: Optional[CoalesceVarAnalysis] = None, + ): + assert self.scheduler + nodes = [ + node for node in nodes if node.get_name() not in self.scheduler.removed_ops + ] + if not nodes: + return + _, (numel, rnumel) = max(nodes, key=lambda x: int(x.is_reduction())).group + + node_schedule = self.generate_node_schedule(nodes, numel, rnumel) + schedule_log.debug("Schedule:\n %s", node_schedule) + + return self.codegen_node_schedule( + SIMDKernelFeatures(node_schedule, numel, rnumel, coalesce_analysis) + ) + + def codegen_node( + self, node: Union[scheduler.FusedSchedulerNode, scheduler.SchedulerNode] + ): + """ + Given a set of pre-fused nodes, generate a Triton kernel. + """ + assert self.scheduler + nodes = [ + node + for node in node.get_nodes() + if node.get_name() not in self.scheduler.removed_ops + ] + if len(nodes) == 0: + return + + if torch._inductor.config.triton.coalesce_tiling_analysis: + if len(nodes) != len(node.get_nodes()): + assert self.scheduler + node = scheduler.FusedSchedulerNode(self.scheduler, nodes) + coalesce_analysis = analyze_memory_coalescing(node) + else: + coalesce_analysis = None + + return self._codegen_nodes(nodes, coalesce_analysis) # type: ignore[arg-type] + + @staticmethod + def can_use_32bit_indexing( + numel: sympy.Expr, + buffers: Iterable[ + Union[ir.Buffer, ir.TensorBox, ir.TorchBindObject, ir.IRNode] + ], + ) -> bool: + int_max = torch.iinfo(torch.int32).max + + if not expr_fits_within_32bit(numel): + return False + + # Any use of a MultiOutputLayout will create a buffer with a + # Layout whose sizes are accounted for + buf_sizes = [ + buf.get_layout().storage_size() + for buf in buffers + if buf.has_tensor_output() + ] + + for buf in buffers: + if not buf.has_tensor_output() and isinstance(buf, ir.MutationOutput): + mutated_bufs = buf.get_mutation_buffers() + buf_sizes += [ + buf.get_layout().storage_size() + for buf in mutated_bufs + if buf.has_tensor_output() + ] + + if not all(expr_fits_within_32bit(size) for size in buf_sizes): + return False + + # Only install guards for 32-bit indexing as there is no correctness + # issue with using 64-bit for everything + V.graph.sizevars.check_leq(numel, int_max) # type: ignore[arg-type] + for size in buf_sizes: + V.graph.sizevars.check_leq(size, int_max) # type: ignore[arg-type] + return True + + def codegen_node_schedule(self, kernel_features: SIMDKernelFeatures): + """ + Generate code for nodes in kernel_features + """ + node_schedule = kernel_features.node_schedule + + tiling, tiling_score = self.get_tiling_and_scores( + node_schedule, + kernel_features.numel, + kernel_features.reduction_numel, + kernel_features.coalesce_analysis, + ) + kernels = self.create_kernel_choices( + kernel_features, + [tiling], + {"features": kernel_features, "tiling_scores": tiling_score}, + ) + for kernel in kernels: + self.codegen_node_schedule_with_kernel(node_schedule, kernel) + MultiKernel.merge_workspaces_inplace(kernels) + for kernel in kernels: + with V.set_kernel_handler(kernel): + src_code = kernel.codegen_kernel() + kernel_name = self.define_kernel(src_code, node_schedule, kernel) + log.debug("Generating kernel code with kernel_name: %s", kernel_name) + kernel.kernel_name = kernel_name + kernel.code_hash = code_hash(src_code) + del kernel + + final_kernel: Union[SIMDKernel, MultiKernel] + if len(kernels) > 1: + final_kernel = MultiKernel(kernels) + else: + (final_kernel,) = kernels + + with V.set_kernel_handler(final_kernel): + for node in kernel_features.scheduler_nodes(): + node.mark_run() + + # filter out NodeScheduleMarker + base_scheduler_nodes = [ + node for node in node_schedule if isinstance(node, BaseSchedulerNode) + ] + self.codegen_comment(base_scheduler_nodes, final_kernel.kernel_name) + if config.cpp.enable_kernel_profile: + V.graph.wrapper_code.write_kernel_context_guard_begin() + V.graph.wrapper_code.write_kernel_context_guard( + final_kernel.kernel_name, + base_scheduler_nodes, # type: ignore[arg-type] + ) + final_kernel.call_kernel(final_kernel.kernel_name) + if config.cpp.enable_kernel_profile: + V.graph.wrapper_code.write_kernel_context_guard_end() + + if config.nan_asserts: + final_kernel.codegen_nan_check() + if config.warn_mix_layout: + final_kernel.warn_mix_layout(kernels[0].kernel_name) + + V.graph.removed_buffers |= final_kernel.removed_buffers + V.graph.inplaced_to_remove |= final_kernel.inplaced_to_remove + + if ( + V.graph.wrapper_code.supports_intermediate_hooks # type: ignore[has-type] + and config.generate_intermediate_hooks + ): + # Not every node in the schedule will actually be live on output; + # we can't check dead buffers. + live_outs = kernels[0].args.live_output_buffers() + for node in kernel_features.scheduler_nodes(): + name = node.get_name() + if name not in live_outs: + continue + assert node.node is not None + origin_node = node.node.get_origin_node() + if origin_node is not None: + counters["inductor"]["intermediate_hooks"] += 1 + V.graph.wrapper_code.writeline( + f"run_intermediate_hooks({origin_node.name!r}, {name})" + ) + + self.free_buffers_in_scheduler() + + def create_kernel_choices( + self, kernel_features: SIMDKernelFeatures, kernel_args, kernel_kwargs + ) -> list[SIMDKernel]: + return [ + self.kernel_type( + *kernel_args, + **kernel_kwargs, + ) + ] + + def codegen_node_schedule_with_kernel(self, node_schedule, kernel): + with kernel: + stack = contextlib.ExitStack() + all_indexing = {} + + # First pass to collect indexing and decide inplace updates + for node in node_schedule: + if node is DisableReduction: + stack.enter_context(kernel.disable_reduction()) + elif node is EnableReduction: + stack.close() + else: + node.decide_inplace_update() + index_vars = kernel.split_and_set_ranges(node.get_ranges()) + all_indexing.update( + dict.fromkeys( + node._body.indexing_from_args(index_vars).values() + ) + ) + + kernel.finalize_indexing(all_indexing.keys()) + + # Second pass to do codegen + for node in node_schedule: + if node is DisableReduction: + stack.enter_context(kernel.disable_reduction()) + elif node is EnableReduction: + stack.close() + else: + # TODO - use split ranges ? + indexing_dtype_strength_reduction(node._body) + index_vars = kernel.split_and_set_ranges(node.get_ranges()) + node.codegen(index_vars) + + def _codegen_single_template( + self, + kernel, + render, + template_node, + epilogue_nodes, + prologue_nodes, + *, + only_gen_src_code=False, + ): + """ + Helper method to codegen a single template kernel variant + """ + buf_name_to_prologue_group = {} + template_reads = template_node.used_buffer_names() + prologue_group = [] + for prologue in prologue_nodes: + names = prologue.get_buffer_names() + prologue_group.append(prologue) + # this must be the end of a prologue group + if names & template_reads: + assert len(names) == 1 + buf_name_to_prologue_group[next(iter(names))] = prologue_group + kernel.prologue_fused_inputs.add(next(iter(names))) + prologue_group = [] + + # all prologue groups should have finalized with use in template + assert len(prologue_group) == 0 + + with kernel: + if not only_gen_src_code: + # prologue nodes can only be fused if their only use is in the template, + # so they are necessarily not allocated + for node in [template_node, *epilogue_nodes]: + node.mark_run() + + partial_code = render() + + num_store_subgraphs = kernel.get_store_output_count() + for i in range(num_store_subgraphs): + subgraph_name = kernel._get_store_output_subgraph_name(i) + with kernel.set_subgraph_body(subgraph_name): + for node in epilogue_nodes: + node.codegen(kernel.split_and_set_ranges(node.get_ranges())) + kernel.cse.invalidate(OrderedSet()) + + for input_name, buffer in kernel.named_input_nodes.items(): + subgraph_name = f"" + if prologue_group := buf_name_to_prologue_group.get( + buffer.get_name(), [] + ): + can_codegen_without_upcast = all( + p_n.can_codegen_without_upcasts() for p_n in prologue_group + ) + + # TODO - this doesn't work with libdevice calls, potentially other bugs + # upcasting to fp32 and downcasting gives large slowdown + with config.patch( + "triton.codegen_upcast_to_fp32", not can_codegen_without_upcast + ): + with kernel.set_subgraph_body(subgraph_name): + for prologue_node in prologue_group: + if ( + len(prologue_node.get_buffer_names()) == 1 + and len(prologue_group) == 1 + ): + if prologue_preserves_zero_mask(prologue_node): + kernel.prologue_fused_inputs_preserve_zero |= ( + prologue_node.get_buffer_names() + ) + + prologue_node.codegen( + kernel.split_and_set_ranges( + prologue_node.get_ranges() + ) + ) + kernel.cse.invalidate(OrderedSet()) + + # Template hooks must be finalised after kernel.remove_kernel_local_buffers + # is called (this is called when the kernel context is exited above), and when + # the kernel handler is set (as below). This is because the hooks may add + # DeferredLine type lines, which preclude lines involving buffers that have + # been removed + + # finalize must be called after adding epilogue above + with V.set_kernel_handler(kernel): + if not isinstance(partial_code, str): + # This is used to calculate flops in TritonTemplateKernels + with ir.IRNode.current_origins(template_node.node.origins): + partial_code.finalize_hook("") + partial_code.finalize_hook("", strict=False) + + # TODO: Maybe unify CUDATemplateKernel to also use PartialRender for flexible epilogue fusion. + + for input_name in kernel.named_input_nodes: + subgraph_name = f"" + # pyrefly: ignore [missing-attribute] + partial_code.finalize_hook(subgraph_name, strict=False) + + num_store_subgraphs = kernel.get_store_output_count() + for i in range(num_store_subgraphs): + subgraph_name = kernel._get_store_output_subgraph_name(i) + # pyrefly: ignore [missing-attribute] + partial_code.finalize_hook(subgraph_name) + + if isinstance(partial_code, str): + src_code = partial_code + else: + # Ensure all hooks are finalized before the kernel is defined. + # Note: some of these hooks may have been registered by a kernel subclass + src_code = partial_code.finalize_remaining() + + node_schedule = [*prologue_nodes, template_node, *epilogue_nodes] + + if config.benchmark_kernel: + num_gb = kernel.estimate_kernel_num_bytes() / 1e9 + src_code = ( + f"{kernel.imports_for_benchmark_kernel()}\n" + f"{src_code}\n" + f"{kernel.codegen_kernel_benchmark(num_gb).getvalue()}" + ) + + if only_gen_src_code: + return src_code + + kernel.kernel_name = self.define_kernel(src_code, node_schedule, kernel) + + return kernel + + def _get_multikernel_shapes( + self, node: MultiTemplateBuffer + ) -> tuple[tuple[int, ...], ...]: + from ..ir import IRNode + + def get_size(arg): + if not isinstance(arg, IRNode): + return None + if isinstance(arg, ir.BaseView): # triton templates want the base tensor. + arg = arg.unwrap_view() + if (size := arg.maybe_get_size()) is None: + return None + return tuple(s for s in size) + + out = [] + for arg in list(node.inputs) + [node]: + if isinstance(arg, (list, tuple)): + out.append(tuple(get_size(_arg) for _arg in arg)) + else: + out.append(get_size(arg)) + return tuple(out) + + def _kernel_has_dynamic_shapes(self, node: MultiTemplateBuffer) -> bool: + shapes = self._get_multikernel_shapes(node) + return any( + any( + isinstance(s, sympy.Expr) and not isinstance(s, sympy.Integer) + for s in shape + ) + for shape in shapes + ) + + def _make_shape_cache_key( + self, node: MultiTemplateBuffer, hint: int + ) -> tuple[tuple[int, ...], ...]: + """ + Returns cache key for hint-based multi-graph; key is tuple of shapes with hint filled in. + """ + shapes = self._get_multikernel_shapes(node) + return tuple( + tuple( + hint + if isinstance(s, sympy.Expr) and not isinstance(s, sympy.Integer) + else s + for s in shape + ) + for shape in shapes + ) + + def codegen_template( + self, + template_node, + epilogue_nodes, + prologue_nodes, + *, + only_gen_src_code=False, + hint_override: Optional[int] = None, + ) -> Optional[str]: + """ + Codegen a triton template with multi-kernel dispatch support + + If `only_gen_src_code=True` the src code will be returned instead of being + codegenned into the wrapper + """ + + _, (_numel, rnumel) = template_node.group + assert rnumel == 1 + + if ( + isinstance(template_node.node, MultiTemplateBuffer) + and template_node.node._make_kernel_renders + and len(template_node.node._make_kernel_renders) > 1 + and self._kernel_has_dynamic_shapes(template_node.node) + ): + kernels = {} + src_codes = [] + + for ( + size_hint, + make_kernel_render, + ) in template_node.node._make_kernel_renders.items(): + kernel, render = make_kernel_render( + template_node.node, hint_override=hint_override + ) + + if only_gen_src_code: + src_code = self._codegen_single_template( + kernel, + render, + template_node, + epilogue_nodes, + prologue_nodes, + only_gen_src_code=True, + ) + assert isinstance(src_code, str) + # pyrefly: ignore [bad-argument-type] + src_codes.append(src_code) + else: + if size_hint is None: + continue # skip kernel generation based on real runtime value; only use hints + kernel = self._codegen_single_template( + kernel, + render, + template_node, + epilogue_nodes, + prologue_nodes, + only_gen_src_code=False, + ) + shape_cache_key = ( + None + if size_hint is None + else self._make_shape_cache_key(template_node.node, size_hint) + ) + kernels[shape_cache_key] = kernel + + if only_gen_src_code: + return "\n\n".join(src_codes) + + MultiKernel.merge_workspaces_inplace(list(kernels.values())) + multi_kernel = SizeHintMultiKernel(kernels) + node_schedule = [*prologue_nodes, template_node, *epilogue_nodes] + self.codegen_comment(node_schedule, multi_kernel.kernel_name) + multi_kernel.call_kernel(multi_kernel.kernel_name) + V.graph.removed_buffers |= multi_kernel.removed_buffers + V.graph.inplaced_to_remove |= multi_kernel.inplaced_to_remove + self.free_buffers_in_scheduler() + return None + else: + kernel, render = template_node.node.make_kernel_render( + template_node.node, hint_override=hint_override + ) + + if only_gen_src_code: + return self._codegen_single_template( + kernel, + render, + template_node, + epilogue_nodes, + prologue_nodes, + only_gen_src_code=True, + ) + else: + kernel = self._codegen_single_template( + kernel, + render, + template_node, + epilogue_nodes, + prologue_nodes, + only_gen_src_code=False, + ) + + node_schedule = [*prologue_nodes, template_node, *epilogue_nodes] + self.codegen_comment(node_schedule, kernel.kernel_name) + kernel.call_kernel(kernel.kernel_name, template_node.node) + + V.graph.removed_buffers |= kernel.removed_buffers + V.graph.inplaced_to_remove |= kernel.inplaced_to_remove + self.free_buffers_in_scheduler() + return None + + def codegen_sync(self): + V.graph.wrapper_code.writeline(V.graph.device_ops.synchronize()) + + def generate_combo_kernel_code( + self, + subkernel_nodes: list[BaseSchedulerNode], + custom_part_algorithm: bool, + enable_autotune: bool, + mixed_sizes: bool, + only_gen_src_code: bool = False, + ) -> list[tuple[str, Any, Any]]: + from .triton_combo_kernel import ComboKernel + + fused_node_lists = [node.get_nodes() for node in subkernel_nodes] + subkernel_map, node_schedule_map = {}, {} + for pn, nodes in zip(subkernel_nodes, fused_node_lists): + _, (numel, rnumel) = max(nodes, key=lambda x: int(x.is_reduction())).group + node_schedule = self.generate_node_schedule(nodes, numel, rnumel) + tiling = self.select_tiling(node_schedule, numel, rnumel) + node_schedule_map[pn] = node_schedule, tiling, numel, rnumel + subkernel_map[pn] = ComboKernel.create_triton_kernel( + tiling, + features=SIMDKernelFeatures(node_schedule, numel, rnumel), + optimize_mask=not mixed_sizes, + ) + + partitions = ComboKernel.horizontal_partition( + nodes=subkernel_nodes, + triton_scheduling=self, + custom_algorithm=custom_part_algorithm, + kernel_map=subkernel_map, + node_info_map=node_schedule_map, + ) + log.debug( + "ComboKernels: %d nodes partitioned into %s groups", + len(subkernel_nodes), + [len(p) for p in partitions], + ) + kernel_code_list = [] + for node_group in partitions: + if len(node_group) == 0: + continue + kernel = ComboKernel( + enable_autotune=enable_autotune, + mixed_sizes=mixed_sizes, + ) + + for pn in node_group: + self.codegen_node_schedule_with_kernel( + node_schedule_map[pn][0], + kernel.create_sub_kernel(subkernel_map[pn]), + ) + subkernel = subkernel_map[pn] + node_schedule = node_schedule_map[pn][0] + if not only_gen_src_code: + with V.set_kernel_handler(subkernel): # type: ignore[call-arg] + for node in NodeScheduleMarker.only_nodes(node_schedule): + node.mark_run() + V.graph.removed_buffers |= subkernel.removed_buffers + V.graph.inplaced_to_remove |= subkernel.inplaced_to_remove + + src_code = kernel.codegen_kernel() + kernel_code_list.append((src_code, kernel, node_group)) + return kernel_code_list + + def codegen_combo_kernel(self, combo_kernel_node): + subkernel_nodes = combo_kernel_node.get_subkernel_nodes() + custom_part_algorithm = combo_kernel_node.use_custom_partition_algo + enable_autotune = combo_kernel_node.enable_autotune + mixed_sizes = config.combo_kernel_allow_mixed_sizes > 1 or ( + config.combo_kernel_allow_mixed_sizes == 1 and custom_part_algorithm + ) + + kernel_code_list = self.generate_combo_kernel_code( + subkernel_nodes, custom_part_algorithm, enable_autotune, mixed_sizes + ) + + for src_code, kernel, _ in kernel_code_list: + kernel_name = self.define_kernel(src_code, [combo_kernel_node], kernel) + self.codegen_comment(combo_kernel_node.snodes, kernel_name) + log.debug("ComboKernels: generated kernel %s.", kernel_name) + kernel.call_kernel(V.graph.wrapper_code, kernel_name) + + self.free_buffers_in_scheduler() + + @classmethod + @functools.lru_cache(32) + def candidate_tilings(cls, node, numel, reduction_numel) -> list[CandidateTiling]: + is_pointwise = reduction_numel == 1 + + def tile_ranges(is_pointwise: bool, ranges, rw) -> list[CandidateTiling]: + """ + Compute tiling candidates by dividing up the iteration ranges. + """ + assert len(rw.range_vars) == len(ranges), f"{rw.range_vars=} {ranges=}" + + # isinstance(dep, MemoryDep): this filters out StarDeps. StarDeps refer to reads + # that need to access the entire tensor; they don't contribute read indexing + # information (and practically, they don't have dep.index so they can't be used + # for stride_hints below + dep_sources = [rw.reads, rw.writes] + assert all( + isinstance(dep, (MemoryDep, StarDep)) + for dep in itertools.chain.from_iterable(dep_sources) + ) + deps = [ + dep + for dep in itertools.chain.from_iterable(dep_sources) + if dep.name not in V.graph.removed_buffers + and isinstance(dep, MemoryDep) + ] + write_names = OrderedSet([dep.name for dep in rw.writes]) + + def collapse_ranges(ranges: Sequence[sympy.Expr]) -> sympy.Expr: + return V.graph.sizevars.simplify(sympy_product(ranges)) + + # Default to no tiling. + tilings = [ + CandidateTiling( + tiling=cls.create_partial_tiling( + [collapse_ranges(ranges)], is_pointwise + ), + name="none", + score=0, + ) + ] + + # Find non-trivial tiling candidates. + for dep in deps: + strides = V.graph.sizevars.stride_hints(dep.index, rw.range_vars) + assert len(strides) == len(ranges) + try: + split = strides.index(1) + 1 + if split == len(ranges): + continue + if all(s == 0 for s in strides[split:]): + # if this is a broadcasted tensor and all dimensions after split are broadcast, + # this is not a real split + continue + + except ValueError: + continue + + tiled_groups = ( + collapse_ranges(ranges[:split]), + collapse_ranges(ranges[split:]), + ) + + # score by number of elements + score = V.graph.sizevars.size_hint( + sympy_product( + size for size, stride in zip(ranges, strides) if stride != 0 + ) + ) + if dep.name in write_names: + # ngimel said contiguous writes is more important than reads + score *= 2 + if CandidateTiling.is_good_size(tiled_groups[0]): + score *= 2 + if CandidateTiling.is_good_size(tiled_groups[1]): + score *= 2 + + if ( + V.graph.sizevars.size_hint( + score - sympy_product(itertools.chain(ranges, reduction_ranges)) + ) + >= 0 + ): + tilings.append( + CandidateTiling( + tiling=cls.create_partial_tiling( + [ + collapse_ranges(ranges[:split]), + collapse_ranges(ranges[split:]), + ], + reduction_numel, + ), + score=score, + name=dep.name, + ) + ) + + return tilings + + pointwise_ranges, reduction_ranges = node.get_ranges() + if ( + len(pointwise_ranges) <= 1 + and len(reduction_ranges) <= 1 + or free_unbacked_symbols(pointwise_ranges + reduction_ranges) + ): + return [] + + # Tile either pointwise or reduction dims. + pointwise_ranges, reduction_ranges = node.get_ranges() + partial_tilings = tile_ranges( + is_pointwise, + pointwise_ranges if is_pointwise else reduction_ranges, + node.pointwise_or_reduction_read_writes(is_pointwise), + ) + + # Fill in the missing ranges. + full_tilings = [ + CandidateTiling( + tiling=cls.complete_partial_tiling( + tiling.tiling, numel, reduction_numel + ), + score=tiling.score, + name=tiling.name, + ) + for tiling in partial_tilings + ] + + return full_tilings + + @classmethod + def create_tiling( + cls, pw_tiling: Sequence[sympy.Expr], reduction_tiling: Sequence[sympy.Expr] + ) -> immutable_dict[str, sympy.Expr]: + """ + Create a tiling dict from pointwise and reduction splits. + """ + pw_prefixes = ["z", "y", "x"][-len(pw_tiling) :] + reduction_prefixes = ["r0_", "r1_"][: len(reduction_tiling)] + return immutable_dict( + [*zip(pw_prefixes, pw_tiling), *zip(reduction_prefixes, reduction_tiling)] + ) + + @classmethod + def create_partial_tiling( + cls, + tiling: Sequence[sympy.Expr], + is_pointwise: bool, + ) -> immutable_dict[str, sympy.Expr]: + return cls.create_tiling( + tiling if is_pointwise else [], + tiling if not is_pointwise else [], + ) + + @classmethod + def complete_partial_tiling( + cls, + tiling: dict[str, sympy.Expr], + numel: sympy.Expr, + reduction_numel: sympy.Expr, + ) -> immutable_dict[str, sympy.Expr]: + """ + Given a tiling for only pointwise or reduction dimensions, adds the missing one. + """ + splits = list(tiling.values()) + is_pointwise = "x" in tiling + + total_numel = numel * reduction_numel + missing_tiling = [total_numel / sympy_product(splits)] + + tiling_args = ( + (splits, missing_tiling) if is_pointwise else (missing_tiling, splits) + ) + return cls.create_tiling(*tiling_args) + + @classmethod + def get_nd_tilings( + cls, + node_schedule, + pointwise_numel, + reduction_numel, + ) -> list[immutable_dict[str, sympy.Expr]]: + """ + Creates N-dimensional tiling candidates, attempting to simplify loads/stores + by tiling the kernel into higher dimensions. + + Returns a list of tilings ranked by dimensionality. + """ + is_pointwise = reduction_numel == 1 + tilings = OrderedSet[immutable_dict[str, sympy.Expr]]() + for node in EnableReduction.filter(node_schedule): + if not isinstance(node, scheduler.SchedulerNode): + continue + + # If this is a reduction schedule, skip nodes which are missing their + # reduction ranges. + node_ranges = node.get_ranges() + if not is_pointwise and len(node_ranges[1]) == 0: + continue + + # Use the node ranges as the default tiling candidate. + ranges_to_tile = node_ranges[0 if is_pointwise else 1] + node_tilings = [ranges_to_tile] + + # Search the indexing expressions for more candidates. + # If we see modular indexing, try to subdivide ranges into their implied + # block shape. + memory_deps = [ + dep + for dep in node.read_writes.reads_and_writes() + if isinstance(dep, MemoryDep) and len(dep.ranges) > 0 + ] + for dep in memory_deps: + # Attempt to partition variable ranges into pointwise and reduction groups. + # To achieve this, merge the leading ranges until we reach the pointwise numel. + all_var_ranges = [*dep.ranges.items()] + pointwise_vars_numel = sympy.S.One + sizevars = V.graph.sizevars + pointwise_end_idx = 0 + for idx, (_var, numel) in enumerate(all_var_ranges): + pointwise_vars_numel *= numel + pointwise_end_idx = idx + if sizevars.statically_known_geq( + pointwise_vars_numel, pointwise_numel + ): + break + + # Reject the split if it does not match the total pointwise numel. + if not sizevars.statically_known_equals( + pointwise_vars_numel, pointwise_numel + ): + continue + + # Partition var ranges into pointwise and reduction splits. + reduction_start_idx = pointwise_end_idx + 1 + var_ranges = ( + all_var_ranges[:reduction_start_idx] + if is_pointwise + else all_var_ranges[reduction_start_idx:] + ) + + # Pattern match the subexpression pertaining to each index variable. + index_tiling = [] + for var, numel in var_ranges: + index = BlockPatternMatcher.get_subexpr_involving_symbol( + dep.index, var + ) + + # Heuristic to bound the maximum dimensionality of the block. + num_dims = max( + 2, + index.count(FloorDiv) + index.count(ModularIndexing), + len(ranges_to_tile), + ) + + # Attempt to pattern match the index expr. + # Failed matches default to the full range. + match_result = BlockPatternMatcher.match_mod_div_block_expr( + index, var, numel, num_dims + ) + dims = match_result[0] if match_result is not None else [numel] + index_tiling.extend(dims) + + # Prune dimensions of size 1. + index_tiling = [ + dim + for dim in index_tiling + if not V.graph.sizevars.statically_known_equals(dim, sympy.S.One) + ] + + if len(index_tiling) > 0: + node_tilings.append(index_tiling) + + # Flatten leading dimensions, assigning labels to each dim. + for node_tiling in node_tilings: + num_leading_dims = max(0, len(node_tiling) - get_max_tiles(2)) + first_trailing_dim = num_leading_dims + 1 + collapsed_leading_dim = sympy_product(node_tiling[:first_trailing_dim]) + collapsed_splits = (collapsed_leading_dim,) + tuple( + node_tiling[first_trailing_dim:] + ) + tilings.add( + cls.complete_partial_tiling( + cls.create_partial_tiling(collapsed_splits, is_pointwise), + pointwise_numel, + reduction_numel, + ) + ) + + # Rank tilings by the number of dimensions. E.g., prefer 2D to 1D. + # Since this is a stable sort, ties are broken by schedule order. + ranked_tilings = sorted( + tilings, + key=len, + reverse=True, + ) + + return ranked_tilings + + @classmethod + def compute_tiling_strategy( + cls, + node_schedule: list[NodeScheduleEntry], + pointwise_numel: sympy.Expr, + reduction_numel: sympy.Expr, + coalesce_analysis: CoalesceVarAnalysis, + ) -> tuple[dict[str, sympy.Expr], Optional[dict[str, sympy.Expr]]]: + """ + Generates a tiling, and a score of each tile according to each tile's coalesced memory accesses. + """ + tiling_var: Optional[sympy.Expr] = ( + None + if not coalesce_analysis.suggested_split + else coalesce_analysis.suggested_split.var + ) + + all_iter_vars = coalesce_analysis.norm_read_writes.index_vars + all_red_vars = coalesce_analysis.norm_read_writes.reduce_vars + ranges = coalesce_analysis.norm_read_writes.var_ranges + + pw_ranges = [ranges[v] for v in all_iter_vars] + red_ranges = [ranges[v] for v in all_red_vars] + + torch._check( + sympy_product(pw_ranges) == pointwise_numel, + lambda: f"{pw_ranges}, {pointwise_numel}, {node_schedule}", + ) + + torch._check( + sympy_product(red_ranges) == reduction_numel, + lambda: f"{red_ranges}, {reduction_numel}, {node_schedule}", + ) + + # score of a pointwise or reduction split + scored_sub_split: dict[Any, tuple[list[int], list[int]]] = {} + + score_split: list[ + tuple[tuple[list[int], list[int]], tuple[list[int], list[int]]] + ] = [] + + def process_node_vars( + vars_to_use: tuple[sympy.Expr, ...] = (), + use_split_var: bool = False, + is_pointwise: bool = False, + ) -> tuple[list[int], list[int]]: + """ + Generate a tiling, and a tiling score, given vars to use as splits. + """ + + ranges = pw_ranges if is_pointwise else red_ranges + target_numel = pointwise_numel if is_pointwise else reduction_numel + # Some kernels have no reduction ranges, and a reduction numel of 1 + if not ranges: + if target_numel: + return ([target_numel], []) + else: + return ([], []) + + key = (repr(vars_to_use), use_split_var, is_pointwise) + if out := scored_sub_split.get(key): + return out + + splitting_vars = all_iter_vars if is_pointwise else all_red_vars + + splits = [] + split_scores = [] + prod = 1 + prev_var_coalesced_score = 0 + + # iterate from non-dense to dense + for v, v_range in zip(splitting_vars, ranges): + if v not in vars_to_use: + prod *= v_range + prev_var_coalesced_score = coalesce_analysis.coalesced_by_var.get( + v, 0 + ) + continue + + if use_split_var and v == tiling_var: + var_tiling = coalesce_analysis.suggested_split + assert var_tiling is not None + + tile = var_tiling.tiling_factor + remainder = FloorDiv(v_range, var_tiling.tiling_factor) + + splits.append(prod * remainder) + split_scores.append(var_tiling.score) + + splits.append(tile) + split_scores.append(coalesce_analysis.coalesced_by_var.get(v, 0)) + + prod = 1 + prev_var_coalesced_score = 0 + + continue + + prod *= v_range + splits.append(prod) + split_scores.append(coalesce_analysis.coalesced_by_var.get(v, 0)) + prod = 1 + + if prod != 1 or (is_pointwise and len(splits) == 0): + splits.append(prod) + split_scores.append(prev_var_coalesced_score) + + # penalize splits that leave small blocks + # where we can't fully utilize full memory transaction + # TODO: incorporate exact bitwidth, and read/write + # coalesced write is 2x more important + for i in range(len(splits)): + s = V.graph.sizevars.size_hint(splits[i], fallback=32) + s = min(s, 8) + split_scores[i] = int(split_scores[i] * s / 8) + + scored_sub_split[key] = (splits, split_scores) + return (splits, split_scores) + + # add the default tiling + score_split.append( + ( + process_node_vars(is_pointwise=True), + process_node_vars(is_pointwise=False), + ) + ) + + if tiling_var: + score_split.append( + ( + process_node_vars( + (tiling_var,), use_split_var=True, is_pointwise=True + ), + process_node_vars(is_pointwise=False), + ) + ) + + # TODO, add tests, reduction splits if config.triton.tile_reductions + # TODO: we should ignore tiny increases in score for extra splits + overlapping_iter_vars = ( + all_iter_vars & coalesce_analysis.coalesced_by_var.keys() + ) + for v in overlapping_iter_vars: + score_split.append( + ( + process_node_vars((v,), is_pointwise=True), + process_node_vars(is_pointwise=False), + ) + ) + + if get_max_tiles(default=3) == 3 and reduction_numel == 1: + for vars_to_use in itertools.combinations(overlapping_iter_vars, 2): + score_split.append( + ( + process_node_vars(vars_to_use, is_pointwise=True), + process_node_vars(is_pointwise=False), + ) + ) + + tilings: list[tuple[CandidateTiling, immutable_dict[str, sympy.Expr]]] = [] + for (pw_split, pw_score), (red_split, red_score) in score_split: + candidate = CandidateTiling( + cls.create_tiling(pw_split, red_split), + score=sum(pw_score) + sum(red_score), + ) + tiling_score = cls.create_tiling(pw_score, red_score) + tilings.append((candidate, tiling_score)) + + default_tiling = cls.create_tiling([pointwise_numel], [reduction_numel]) + + # add a slight penalty for longer tilings that dont increase score much, + # and are poor sizes + bad_size_additional_tiling_penalty = 1.025 + good_size_tiling_penalty = 1.005 + + total_uncoalesced = sum(coalesce_analysis.uncoalesced_addrs.values()) + + def score_mod(t): + score_factor = 1.0 + for tile_size in t[0].tiling.values(): + if not CandidateTiling.is_good_size(tile_size): + score_factor = score_factor / bad_size_additional_tiling_penalty + else: + score_factor = score_factor / good_size_tiling_penalty + + # Add uncoalesced memory score to prevent small coalesced benefits + # from dominating large amounts of uncoalesced memory + uncoalesced_penalty = total_uncoalesced * 0.05 + + return -(t[0].score + uncoalesced_penalty) * score_factor + + # apply penalty for longer tilings that dont increase score much + for cand, tiling_score in sorted(tilings, key=score_mod): + if ( + cls.tiling_is_compatible( + node_schedule, pointwise_numel, reduction_numel, cand.tiling + ) + or cand.tiling == default_tiling + ): + # we always include default reduction numel == 1, dont include + tiling_len = len(cand.tiling) - (1 if reduction_numel == 1 else 0) + if tiling_len > get_max_tiles(default=3): + perf_hint_log.info( + "Found optimal tiling with %s tiles but torch._inductor.config.triton.max_tiles " + "set to %s. Consider increasing", + tiling_len, + torch._inductor.config.triton.max_tiles, + ) + continue + + return cand.tiling, tiling_score + + # surprisingly, the default tiling is not always read as compatible by `tiling_is_compatible` + # TODO - look into, occurs with dynamic shapes often + if cand.tiling == default_tiling: + return cand.tiling, tiling_score + + return default_tiling, None + + @classmethod + def tiling_is_compatible( + cls, + node_schedule: list[NodeScheduleEntry], + numel: sympy.Expr, + reduction_numel: sympy.Expr, + tiling: dict[str, sympy.Expr], + ): + assert isinstance(tiling, dict) + return all( + SIMDKernel.is_compatible( + tiling.values(), node.get_ranges(), reduction_numel=reduction_numel + ) + for node in node_schedule + if isinstance(node, scheduler.SchedulerNode) + ) + + @classmethod + def get_first_compatible_tiling( + cls, + node_schedule: list[NodeScheduleEntry], + numel: sympy.Expr, + reduction_numel: sympy.Expr, + ranked_tilings: list[dict[str, sympy.Expr]], + ): + for tiling in ranked_tilings: + if cls.tiling_is_compatible(node_schedule, numel, reduction_numel, tiling): + return tiling + + return None + + @classmethod + def select_tiling( + cls, + node_schedule, + numel, + reduction_numel=sympy.S.One, + coalesce_analysis: Optional[CoalesceVarAnalysis] = None, + ) -> dict[str, sympy.Expr]: + return cls.get_tiling_and_scores( + node_schedule, numel, reduction_numel, coalesce_analysis + )[0] + + @classmethod + def get_tiling_and_scores( + cls, + node_schedule, + numel, + reduction_numel=sympy.S.One, + coalesce_analysis: Optional[CoalesceVarAnalysis] = None, + ) -> tuple[dict[str, sympy.Expr], Optional[dict[str, sympy.Expr]]]: + """ + Heuristics to decide how to tile kernels. + Currently, we tile based on stride-1 dimensions. + + Returns: + `(tile1, tile2, reduction_numel)` s.t. `tile1 * tile2 == numel` + + """ + # If this is a reduction, only tile reduction dims. + is_pointwise = reduction_numel == 1 + + # Tiled reductions are gated by a config flag. + default_tiling = cls.create_tiling([numel], [reduction_numel]) + + # Force tiling compatible with matmul dimensions + # when natively generating matmul without template calls. + for node in EnableReduction.filter(node_schedule): + if isinstance(node.node, ir.ComputedBuffer): + if ( + node.node.get_reduction_type() == "dot" + and config.triton.native_matmul + ): + # A[M,K] @ B[K,N] + # force tiling to be {'y':M, 'x':N, 'r0_':K} + node_ranges = node.get_ranges() + range_y_x = node_ranges[0] # (M,N) + range_r = node_ranges[1] # (K) + tiling = cls.create_tiling(range_y_x, range_r) + return tiling, None + + # # TODO: enable by default + if ( + torch._inductor.config.triton.coalesce_tiling_analysis + and coalesce_analysis + and not config.triton.prefer_nd_tiling + ): + return cls.compute_tiling_strategy( + node_schedule, numel, reduction_numel, coalesce_analysis + ) + + if (not is_pointwise and not config.triton.tile_reductions) or get_max_tiles( + default=2 + ) <= 1: + # Emit a perf hint in case we miss an opportunity to tile a reduction. + if perf_hint_log.level <= logging.WARNING: + for node in EnableReduction.filter(node_schedule): + if ( + not config.triton.tile_reductions + and len(cls.candidate_tilings(node, numel, reduction_numel)) > 0 + ): + perf_hint_log.info( + textwrap.dedent( + """ + Reduction over non-contiguous dims. + Consider setting config.triton.tile_reductions to True. + """ + ) + ) + break + + return default_tiling, None + + seen_names: OrderedSet[str] = OrderedSet() + candidate_tiles: Counter[CandidateTiling] = collections.Counter() + for node in EnableReduction.filter(node_schedule): + for candidate_tiling in cls.candidate_tilings(node, numel, reduction_numel): + if candidate_tiling.name in seen_names: + continue + elif candidate_tiling.name is not None: + seen_names.add(candidate_tiling.name) + candidate_tiles[candidate_tiling] += candidate_tiling.score + + ranked_tilings: list[dict[str, sympy.Expr]] = [ + candidate_tiling.tiling + for candidate_tiling, score in candidate_tiles.most_common() + ] + + if get_max_tiles(default=2) >= 3 and is_pointwise: + # Consider adding a third dimension of tiling, but only + # when a1 is a multiple of b1; otherwise, you have a lot + # of stragglers which is annoying to generate code for. + # + # NB: More than three max tiles is not enabled by default. + + def convert_tiling_to_3d( + tiling0: dict[str, sympy.Expr], tiling1: dict[str, sympy.Expr] + ) -> Optional[dict[str, sympy.Expr]]: + a0, a1 = tiling0["x"], tiling0.get("y", 1) + b0, b1 = tiling1["x"], tiling1.get("y", 1) + + if ( + free_unbacked_symbols([a1, b1]) + or V.graph.sizevars.size_hint(a1 - b1) == 0 + ): + return None + if V.graph.sizevars.size_hint(a1 - b1) < 0: + # swap so a0 is bigger + (a0, a1), (b0, b1) = (b0, b1), (a0, a1) + + assert V.graph.sizevars.size_hint(a1 - b1) > 0 + if not V.graph.sizevars.statically_known_multiple_of(a1, b1): + return None + + new_tiling = { + "z": a0, + "y": FloorDiv(a1, b1), + "x": b1, + "r0_": tiling0["r0_"], + } + + return new_tiling + + for i in range(1, len(ranked_tilings)): + new_3d_tiling = convert_tiling_to_3d( + ranked_tilings[0], ranked_tilings[i] + ) + if new_3d_tiling is not None: + ranked_tilings = [new_3d_tiling] + ranked_tilings + break # only 1 choice for now + + if len(ranked_tilings) > 1: + perf_hint_log.info("possibly bad tiling: %s", ranked_tilings) + + # Optionally, prefer tiling into as many dimensions as possible. + # pyrefly: ignore [unbound-name] + if config.triton.prefer_nd_tiling: + ranked_tilings = ( + cls.get_nd_tilings(node_schedule, numel, reduction_numel) + + ranked_tilings + ) + + if tiling := cls.get_first_compatible_tiling( + node_schedule, numel, reduction_numel, ranked_tilings + ): + return tiling, None + + return default_tiling, None + + def flush(self): + pass + + def ready_to_flush(self) -> bool: + return False + + def generate_kernel_code_from_nodes( + self, nodes, benchmark_kernel=False, hint_override: Optional[int] = None + ): + if not any(n.is_template() for n in nodes): + _, (numel, rnumel) = max(nodes, key=lambda x: int(x.is_reduction())).group + node_schedule = self.generate_node_schedule(nodes, numel, rnumel) + tiling = self.select_tiling(node_schedule, numel, rnumel) + kernel = self.kernel_type( + tiling, + features=SIMDKernelFeatures(node_schedule, numel, rnumel), + ) + self.codegen_node_schedule_with_kernel(node_schedule, kernel) + with ( + config.patch("benchmark_kernel", benchmark_kernel), + V.set_kernel_handler(kernel), + ): + src_code = kernel.codegen_kernel() + else: + prologue, template, epilogue = nodes[0].get_prologue_template_epilogue( + nodes + ) + with config.patch("benchmark_kernel", benchmark_kernel): + src_code = self.codegen_template( + template, + epilogue, + prologue, + only_gen_src_code=True, + hint_override=hint_override, + ) + + # pyrefly: ignore [missing-attribute] + src_code = src_code.replace(str(Placeholder.KERNEL_NAME), "triton_") + return src_code + + def define_kernel(self, src_code, node_schedule, kernel): + raise NotImplementedError + + +@dataclasses.dataclass(frozen=True) +class CandidateTiling: + tiling: dict[str, sympy.Expr] + score: int # higher is better + name: Optional[str] = None + + @staticmethod + def is_good_size(s): + """Somewhat arbitrary heuristic used to boost scores for some sizes""" + s = V.graph.sizevars.size_hint(s) + return s >= 32 and (s % 32 == 0) + + +class CantSplit(Exception): + pass diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/simd_kernel_features.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/simd_kernel_features.py new file mode 100644 index 0000000000000000000000000000000000000000..3cb38dda5a3660e090adc7013da94577507e8a89 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/simd_kernel_features.py @@ -0,0 +1,620 @@ +from __future__ import annotations + +import collections +import dataclasses +import functools +import itertools +import typing +from typing import Any, Optional, Union + +import sympy + +import torch + +from ...utils._ordered_set import OrderedSet +from ...utils._sympy.functions import FloorDiv, ModularIndexing +from ...utils._sympy.symbol import make_symbol, SymT +from ..dependencies import Dep, extract_loop_body_with_args, MemoryDep +from ..runtime.hints import ReductionHint +from ..scheduler import SchedulerNode +from ..utils import cache_on_self +from ..virtualized import V + + +if typing.TYPE_CHECKING: + from collections.abc import Iterable, Sequence + + from torch._inductor.tiling_utils import CoalesceVarAnalysis + + +class NodeScheduleMarker: + @staticmethod + def only_nodes(it: Iterable[NodeScheduleEntry]) -> Iterable[SchedulerNode]: + for item in it: + if not (item is DisableReduction or item is EnableReduction): + yield item # type: ignore[misc] + + @staticmethod + def is_reduction() -> bool: + return False + + +NodeScheduleEntry = Union[SchedulerNode, type[NodeScheduleMarker]] + + +class DisableReduction(NodeScheduleMarker): + """ + Marker to invoke `kernel.disable_reduction()`. This closes a + reduction loop and allows for pointwise ops to occur on the output + of a reduction. + """ + + +class EnableReduction(NodeScheduleMarker): + """ + Marker to end a DisableReduction block. + """ + + @staticmethod + def filter(node_schedule: list[NodeScheduleEntry]) -> Iterable[SchedulerNode]: + """ + Get the nodes from node_schedule skipping those in a + DisableReduction block. + """ + disabled = False + for node in node_schedule: + if node in (EnableReduction, DisableReduction): + # Don't tile stuff outside the main reduction loop + disabled = node is DisableReduction + elif disabled: + pass + else: + yield node # type: ignore[misc] + + +class SIMDKernelFeatures: + """ + An ordered schedule of nodes that will become a single kernel. + """ + + def __init__( + self, + node_schedule: list[NodeScheduleEntry], + numel: sympy.Expr, + reduction_numel: sympy.Expr = sympy.S.One, + coalesce_analysis: Optional[CoalesceVarAnalysis] = None, + ): + self.node_schedule = node_schedule + # numel excludes reduction_numel + self.numel: sympy.Expr = V.graph.sizevars.simplify(numel) + self.reduction_numel: sympy.Expr = V.graph.sizevars.simplify(reduction_numel) + self._stats_cache: dict[tuple[sympy.Expr, ...], MemoryStats] = {} + self.coalesce_analysis = coalesce_analysis + + @cache_on_self + def is_reduction(self) -> bool: + return self.reduction_numel != 1 + + @cache_on_self + def scheduler_nodes(self) -> Iterable[SchedulerNode]: + return tuple(NodeScheduleMarker.only_nodes(self.node_schedule)) + + def reduction_nodes(self) -> list[SchedulerNode]: + return [n for n in self.scheduler_nodes() if n.is_reduction()] + + @cache_on_self + def buf_accesses(self) -> dict[str, list[Dep]]: + """only needed for config.benchmark_kernel""" + buf_accesses = collections.defaultdict(list) + for node in self.scheduler_nodes(): + for access in node.read_writes.reads | node.read_writes.writes: + buf_accesses[access.name].append(access) + return buf_accesses + + @cache_on_self + def op_counts(self) -> collections.Counter[str]: + counts: collections.Counter[str] = collections.Counter() + for node in self.scheduler_nodes(): + counts.update(node._body.op_counts) + return counts + + def contains_op(self, op_name: str) -> bool: + """True if V.ops.{op_name} is used in node_schedule""" + return bool(self.op_counts().get(op_name)) + + def get_mutations(self) -> OrderedSet[str]: + mutations: OrderedSet[str] = OrderedSet() + for node in self.scheduler_nodes(): + for buf in node.get_outputs(): + mutations.update(buf.get_mutations()) + return mutations + + @cache_on_self + def select_index_dtype(self) -> torch.dtype: + # Gather all used buffer names + buffer_names: OrderedSet[str] = OrderedSet() + for node in self.scheduler_nodes(): + buffer_names.update(node.get_buffer_names()) + buffer_names.update(node.used_buffer_names()) + buffers = [V.graph.get_buffer(name) for name in buffer_names] + + # In theory we can separately check xnumel and rnumel are <= int_max + # but some indexers do use the full linear index so we need to be + # conservative here. + total_numel = self.numel * self.reduction_numel + + from .simd import SIMDScheduling + + if SIMDScheduling.can_use_32bit_indexing(total_numel, buffers): + return torch.int32 + return torch.int64 + + @cache_on_self + def get_reduction_hint(self) -> ReductionHint: + reductions = self.reduction_nodes() + if len(reductions) > 0: + hints = [self.reduction_hint(n) for n in reductions] + if hints.count(hints[0]) == len(hints): + reduction_hint_val = hints[0] + else: + reduction_hint_val = ReductionHint.DEFAULT + + if ( + reduction_hint_val == ReductionHint.INNER + and self.has_non_contiguous_pw_in_reduction_kernel() + ): + reduction_hint_val = ReductionHint.DEFAULT + else: + reduction_hint_val = ReductionHint.DEFAULT + return reduction_hint_val + + @cache_on_self + def buffer_read_counts(self) -> dict[str, int]: + """Counts how many times each buffer is read within the kernel""" + read_counts: dict[str, int] = collections.defaultdict(int) + + for node in self.scheduler_nodes(): + # node.read_writes.reads contains MemoryDep objects for each read + for read_dep in node.read_writes.reads: + read_counts[read_dep.name] += 1 + + return dict(read_counts) # Convert defaultdict to regular dict + + def has_non_contiguous_pw_in_reduction_kernel(self) -> bool: + pointwise_nodes = [ + n + for n in self.scheduler_nodes() + if not n.is_reduction() + and n.group[1][0] == self.numel * self.reduction_numel + ] + for node in pointwise_nodes: + # An index can be an integer when loading a random seed. + if not all( + not isinstance(dep, MemoryDep) + or dep.is_contiguous() + or isinstance(dep.index, (sympy.Integer, int)) + or dep.stride1_for_last_dim() + for dep in itertools.chain( + node.read_writes.reads, node.read_writes.writes + ) + ): + return True + return False + + @staticmethod + def reduction_hint(node: Any) -> ReductionHint: + assert node.is_reduction() + if node.node.data.reduction_hint != ReductionHint.INNER and all( + dep.is_contiguous() + for dep in itertools.chain(node.read_writes.reads, node.read_writes.writes) + ): + return ReductionHint.INNER + else: + return node.node.data.reduction_hint + + def memory_stats( + self, groups_dict: Optional[dict[str, sympy.Expr]] = None + ) -> MemoryStats: + """Analysis to generate features that can be used in heuristics""" + if groups_dict is None: + groups = (self.numel, self.reduction_numel) + elif groups_dict.keys() == OrderedSet(["x", "r0_"]): + groups = (groups_dict["x"], groups_dict["r0_"]) + else: + raise NotImplementedError(f"groups_dict={groups_dict!r}") + result = self._stats_cache.get(groups) + if result is None: + self._stats_cache[groups] = result = MemoryStats.compute( + MemoryEstimator(self, groups) + ) + return result + + +class MemoryEstimator: + """ + Estimate various properties of the kernel for use in heuristics. + We simulate the memory effects of CSE/buffer elimination in codegen. + """ + + kernel_sizes: tuple[sympy.Expr, ...] + outside_loop: MemoryEstimate + loops: list[MemoryEstimate] + persistent: MemoryEstimate + symbols: list[sympy.Symbol] + + def __init__(self, features: SIMDKernelFeatures, groups: Sequence[sympy.Expr]): + self.features = features + self.inside_reduction = features.is_reduction() + self.store_buffer_names: OrderedSet[str] = OrderedSet() + self.must_keep_buffers: OrderedSet[str] = OrderedSet() + self.num_reductions_dims = 1 + self.groups = groups + self.symbols = [make_symbol(SymT.INDEX, i) for i in range(len(groups))] + # We are doing two estimates simultaneously: + # 1) the first is a for a non-persistent (aka looped) reduction, using self.outside_loop/self.loops + # we add an item to loops each corresponding to each reduction loop in the kernel + # outside_loop is only used for broadcasting or point-wise ops that don't use the reduction dimension + # 2) the second is for a persistent kernel, using self.persistent + # persistent kernels don't have loops, so we only have one MemoryEstimate() + # for point-wise ops the two estimates will be the same, they matter for reductions only + self.outside_loop = MemoryEstimate() + self.loops = [MemoryEstimate()] + self.persistent = MemoryEstimate() + self.simulate_codegen() + self.remove_kernel_local() + + def simulate_codegen(self) -> None: + from .simd import SIMDKernel + + kernel_size_outside_loop = (*self.groups[:-1], sympy.S.One) + kernel_size_inside_loop = tuple(self.groups) + self.kernel_sizes = kernel_size_inside_loop + + for node in self.features.node_schedule: + if node is DisableReduction: + self.inside_reduction = False + self.kernel_sizes = kernel_size_outside_loop + continue + elif node is EnableReduction: + self.inside_reduction = True + self.kernel_sizes = kernel_size_inside_loop + self.loops.append(MemoryEstimate()) + continue + assert isinstance(node, SchedulerNode) + rw = extract_loop_body_with_args( + node._body, + SIMDKernel.map_kernel_groups_to_node_sizes( + self.kernel_sizes, node.get_ranges(), self.set_ranges + ), + dict(zip(self.symbols, self.kernel_sizes)), + ) + + for dep in rw._reads: + if not isinstance(dep, MemoryDep): + continue + dep = dep.simplify_with_ranges() + if not self.persistent.writes.get(dep.name): # cache miss? + self.persistent.reads[dep.name].add(dep) + # the cache behavior of looped kernels is more complex than the persistent case above + # some operations are lifted outside the loop (if they don't use the reduction dimension) + # other operations are inside the loop, and can only be reused within the same loop + if not ( + self.outside_loop.writes.get(dep.name) + or self.loops[-1].writes.get(dep.name) + ): + self.scope(dep).reads[dep.name].add(dep) + if dep.name in self.store_buffer_names and self.loops[-1].reads.get( + dep.name + ): + self.must_keep_buffers.add(dep.name) + + for dep in rw._writes: + if not isinstance(dep, MemoryDep): + continue + dep = dep.simplify_with_ranges() + self.store_buffer_names.add(dep.name) + self.persistent.writes[dep.name].add(dep) + self.scope(dep).writes[dep.name].add(dep) + + def remove_kernel_local(self) -> None: + # Remove any kernel-local buffers + fused_node_names = OrderedSet( + [n.get_name() for n in self.features.scheduler_nodes()] + ) + for name in self.store_buffer_names: + if not self.persistent.reads.get( + name + ) and V.graph.scheduler.can_buffer_be_removed_through_fusion( + name, fused_node_names + ): + self.persistent.remove(name) + if name not in self.must_keep_buffers: + # we can also remove this from the looped kernel + self.outside_loop.remove(name) + for loop in self.loops: + loop.remove(name) + + if not self.loops[-1]: + self.loops.pop() # for pointwise ops + + def scope(self, dep: MemoryDep) -> MemoryEstimate: + """Determine how a read/write should be categorized""" + if self.inside_reduction and ( + self.has_reduction_var(dep.index) or dep.is_indirect() + ): + return self.loops[-1] + return self.outside_loop + + def has_reduction_var(self, index: sympy.Expr) -> bool: + for sym in self.symbols[-self.num_reductions_dims :]: + if isinstance(sym, sympy.Symbol) and sym in index.free_symbols: + return True + return False + + def set_ranges(self, *lengths: list[list[sympy.Expr]]) -> list[list[sympy.Expr]]: + assert len(self.kernel_sizes) == len(lengths) + return [ + self.make_flat_range(sym, numel, length) + for sym, numel, length in zip(self.symbols, self.kernel_sizes, lengths) + ] + + @staticmethod + def make_flat_range( + sym: sympy.Symbol, numel: sympy.Expr, lengths: list[sympy.Expr] + ) -> list[sympy.Expr]: + if len(lengths) == 1 and numel == lengths[0]: + return [sym] + divisor = sympy.S.One + itervars = [] + for length in reversed(lengths): + if V.graph.sizevars.statically_known_equals(divisor * length, numel): + expr = FloorDiv(sym, divisor) + else: + expr = ModularIndexing(sym, divisor, length) + itervars.append(expr) + divisor = divisor * length + return [*reversed(itervars)] + + +@dataclasses.dataclass +class MemoryEstimate: + """Tracks the memory usage of a single loop in the generated kernel""" + + reads: dict[str, OrderedSet[MemoryDep]] = dataclasses.field( + default_factory=functools.partial(collections.defaultdict, OrderedSet) + ) + writes: dict[str, OrderedSet[MemoryDep]] = dataclasses.field( + default_factory=functools.partial(collections.defaultdict, OrderedSet) + ) + + def remove(self, name: str) -> None: + self.reads.pop(name, None) + self.writes.pop(name, None) + + def __bool__(self) -> bool: + return bool(self.reads or self.writes) + + def __repr__(self) -> str: + return f"""MemoryEstimate( + reads={[*itertools.chain.from_iterable(self.reads.values())]!r}, + writes={[*itertools.chain.from_iterable(self.writes.values())]!r} + )""" + + +@dataclasses.dataclass +class StatsForDim: + """Memory usage stats for a block dimension in the generated kernel (different from user dimensions)""" + + # the number of load/store ops + count_per_thread_contiguous: int = 0 + count_per_thread_broadcast: int = 0 + count_per_thread_non_contiguous: int = 0 # excludes broadcast + + # total bytes in each load/store op for a single element + bytes_per_thread_contiguous: int = 0 + bytes_per_thread_broadcast: int = 0 + bytes_per_thread_non_contiguous: int = 0 # excludes broadcast + + # total bytes read by entire kernel + bytes_contiguous_or_broadcast: sympy.Expr = sympy.S.Zero + bytes_non_contiguous: sympy.Expr = sympy.S.Zero + + def __add__(self, other: typing.Self) -> StatsForDim: + return StatsForDim( + count_per_thread_contiguous=self.count_per_thread_contiguous + + other.count_per_thread_contiguous, + count_per_thread_broadcast=self.count_per_thread_broadcast + + other.count_per_thread_broadcast, + count_per_thread_non_contiguous=self.count_per_thread_non_contiguous + + other.count_per_thread_non_contiguous, + bytes_per_thread_contiguous=self.bytes_per_thread_contiguous + + other.bytes_per_thread_contiguous, + bytes_per_thread_broadcast=self.bytes_per_thread_broadcast + + other.bytes_per_thread_broadcast, + bytes_per_thread_non_contiguous=self.bytes_per_thread_non_contiguous + + other.bytes_per_thread_non_contiguous, + bytes_contiguous_or_broadcast=self.bytes_contiguous_or_broadcast + + other.bytes_contiguous_or_broadcast, + bytes_non_contiguous=self.bytes_non_contiguous + other.bytes_non_contiguous, + ) + + @property + def count_per_thread(self) -> int: + return ( + self.count_per_thread_contiguous + + self.count_per_thread_broadcast + + self.count_per_thread_non_contiguous + ) + + @property + def bytes_per_thread(self) -> int: + return ( + self.bytes_per_thread_contiguous + + self.bytes_per_thread_broadcast + + self.bytes_per_thread_non_contiguous + ) + + @property + def bytes(self) -> sympy.Expr: + return self.bytes_contiguous_or_broadcast + self.bytes_non_contiguous + + @property + def contiguous_score(self) -> float: + return 1.0 - self.count_per_thread_non_contiguous / max( + self.count_per_thread, 1 + ) + + +@dataclasses.dataclass +class StatsForLoop: + """Memory usage stats for single loop in the generated kernel""" + + # load/store ops + count_per_thread: int = 0 + bytes_per_thread: int = 0 + + def __add__(self, other: typing.Self) -> StatsForLoop: + return StatsForLoop( + count_per_thread=self.count_per_thread + other.count_per_thread, + bytes_per_thread=self.bytes_per_thread + other.bytes_per_thread, + ) + + +@dataclasses.dataclass +class StatsForReadsOrWrites: + """Memory usage stats that are collected for reads/writes/both""" + + dim: list[StatsForDim] + loop: list[StatsForLoop] + # total bytes contiguous in any dimension + bytes_contiguous_or_broadcast: sympy.Expr = sympy.S.Zero + bytes_non_contiguous: sympy.Expr = sympy.S.Zero + + def __add__(self, other: typing.Self) -> StatsForReadsOrWrites: + assert len(self.dim) == len(other.dim) + assert len(self.loop) == len(other.loop) + return StatsForReadsOrWrites( + dim=[a + b for a, b in zip(self.dim, other.dim)], + loop=[a + b for a, b in zip(self.loop, other.loop)], + bytes_contiguous_or_broadcast=self.bytes_contiguous_or_broadcast + + self.bytes_contiguous_or_broadcast, + bytes_non_contiguous=self.bytes_non_contiguous + other.bytes_non_contiguous, + ) + + @property + def count_per_thread(self) -> int: + return self.dim[0].count_per_thread + + @property + def bytes_per_thread(self) -> int: + return self.dim[0].bytes_per_thread + + @property + def bytes(self) -> sympy.Expr: + return self.bytes_contiguous_or_broadcast + self.bytes_non_contiguous + + @classmethod + def compute( + cls, + loop_deps: list[dict[str, OrderedSet[MemoryDep]]], + index_symbols: list[sympy.Symbol], + ) -> typing.Self: + ndim = len(index_symbols) + result = cls(dim := [StatsForDim() for _ in range(ndim)], []) + for dep_group in loop_deps: + result.loop.append(loop_stats := StatsForLoop()) + for name, deps in dep_group.items(): + assert deps + contiguous_or_broadcast = [True] * ndim + numel = sympy.S.Zero + itemsize = V.graph.get_dtype(name).itemsize + loop_stats.count_per_thread += len(deps) + loop_stats.bytes_per_thread += itemsize * len(deps) + for dep in deps: + strides: list[sympy.Expr] = V.graph.sizevars.stride_vars( + dep.index, index_symbols + ) + for i in range(ndim): + if V.graph.sizevars.statically_known_equals(strides[i], 1): + dim[i].count_per_thread_contiguous += 1 + dim[i].bytes_per_thread_contiguous += itemsize + elif ( + V.graph.sizevars.statically_known_equals(strides[i], 0) + and not dep.is_indirect() + ): + dim[i].count_per_thread_broadcast += 1 + dim[i].bytes_per_thread_broadcast += itemsize + else: + dim[i].count_per_thread_non_contiguous += 1 + dim[i].bytes_per_thread_non_contiguous += itemsize + contiguous_or_broadcast[i] = False + numel += dep.get_numel() + if len(deps) > 1: + # can't read more elements than exist in the buffer + numel = sympy.Min(numel, V.graph.get_numel(name)) + nbytes = numel * itemsize + for i in range(ndim): + if contiguous_or_broadcast[i]: + dim[i].bytes_contiguous_or_broadcast += nbytes + else: + dim[i].bytes_non_contiguous += nbytes + if any(contiguous_or_broadcast): + result.bytes_contiguous_or_broadcast += nbytes + else: + result.bytes_non_contiguous += nbytes + if len(result.loop) > 1: + # the first loop represent the "outside of the loop" compute which could be long lived + result.loop = [result.loop[0] + x for x in result.loop[1:]] + return result + + +@dataclasses.dataclass +class StatsForKernelType: + """Memory usage stats that are collected for both persistent and looped kernels""" + + reads: StatsForReadsOrWrites + writes: StatsForReadsOrWrites + memory: StatsForReadsOrWrites + + @classmethod + def compute( + cls, loops: list[MemoryEstimate], estimator: MemoryEstimator + ) -> typing.Self: + reads = StatsForReadsOrWrites.compute( + [loop.reads for loop in loops], estimator.symbols + ) + writes = StatsForReadsOrWrites.compute( + [loop.writes for loop in loops], estimator.symbols + ) + return cls( + reads=reads, + writes=writes, + memory=reads + writes, + ) + + +@dataclasses.dataclass +class MemoryStats: + """Memory usage stats collected for each generated kernel""" + + persistent: StatsForKernelType + looped: StatsForKernelType + + def get(self, persistent: bool) -> StatsForKernelType: + return self.persistent if persistent else self.looped + + @classmethod + def compute(cls, estimator: MemoryEstimator) -> typing.Self: + persistent = StatsForKernelType.compute([estimator.persistent], estimator) + if len(estimator.loops) == 1 and not ( + estimator.outside_loop and estimator.loops[0] + ): + looped = persistent # loops/persistent is the same in this common case + else: + looped = StatsForKernelType.compute( + [estimator.outside_loop, *estimator.loops], estimator + ) + return cls( + persistent=persistent, + looped=looped, + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/subgraph.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/subgraph.py new file mode 100644 index 0000000000000000000000000000000000000000..7b931fb3bf47e74596e9053f58177a6faa180edd --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/subgraph.py @@ -0,0 +1,433 @@ +import itertools +import logging +from collections.abc import Callable +from typing import Any, Union + +import torch +import torch._inductor.config as config +from torch._inductor import ir +from torch._inductor.codegen.common import KernelTemplate +from torch._inductor.ir import ( + Buffer, + FixedLayout, + get_free_symbols, + get_symbolic_inputs, + gm_original_output_strides, + ir_node_to_tensor, + Layout, +) +from torch._inductor.runtime.benchmarking import benchmarker +from torch._inductor.utils import do_bench_using_profiling +from torch._inductor.virtualized import V + + +log = logging.getLogger(__name__) + + +def inline_subgraph_to_ir_nodes( + gm: torch.fx.GraphModule, inputs: list[Any], name: str +) -> Any: + """Inline a subgraph by converting its FX operations to individual IR nodes. + + This converts a subgraph to multiple ComputedBuffer nodes (fusable), + enabling epilogue fusion with subsequent operations. + + Returns: + TensorBox containing the final operation result as individual IR nodes + """ + from torch._inductor.lowering import process_subgraph_nodes + + return process_subgraph_nodes(gm, inputs) + + +class SubgraphChoiceCaller(ir.ChoiceCaller): + """ + Represents a Subgraph Autotuning choice, and the subgraph can be any arbitrary + GraphModule. Compiles the Subgraph down to a module for benchmarking. + """ + + def __init__( + self, + name: str, + input_nodes: list[Buffer], + layout: Layout, + description: str, + make_fx_graph: Callable[..., Any], + ) -> None: + super().__init__(name, input_nodes, layout, description) + + self.example_inputs = [] + with V.fake_mode: + for inp in self.input_nodes: + # Here there will be no unbacked symbols, as SubgraphBuffer does not support them + assert len(get_free_symbols(inp.get_size(), unbacked_only=True)) == 0 + assert len(get_free_symbols(inp.get_stride(), unbacked_only=True)) == 0 + + inp.data.freeze_layout() # type: ignore[attr-defined] + self.example_inputs.append(ir_node_to_tensor(inp)) + + self.gm = make_fx_graph(*self.example_inputs) + gm_original_output_strides(self.gm) + + self.sym_inputs = get_symbolic_inputs(self.input_nodes) + + # Cache compiled module to avoid recompiling on every benchmark call + self._compiled_module: Any = None + self._compiled_sym_inputs: list[Any] | None = None + + def __str__(self) -> str: + return f"SubgraphCaller({self.name})" + + def _compile_for_benchmarking(self, *args: list[Any]) -> tuple[Any, list[Any]]: + """ + Compile the subgraph for benchmarking and return (module, sym_inputs). + + TODO: Add precompile() method to enable parallel compilation of all choices + before benchmarking. + """ + import torch._inductor.config as inductor_config + from torch._inductor.graph import GraphLowering + + safe_name = self.name.replace("::", "_").replace(".", "_") + + bm_graph_lowering = GraphLowering( + gm=self.gm, + example_inputs=self.example_inputs, + shape_env=V.graph._shape_env, + cpp_wrapper=V.graph.cpp_wrapper, + aot_mode=V.graph.aot_mode, + extern_node_serializer=V.graph.extern_node_serializer, + is_inference=V.graph.is_inference, + is_backward=V.graph.is_backward, + name=f"benchmark_{safe_name}", + ) + + for sym_inp in self.sym_inputs: + bm_graph_lowering.graph_inputs[sym_inp.name] = sym_inp + bm_graph_lowering.graph_input_names.append(sym_inp.name) + + sym_inputs = [ + # pyrefly: ignore [no-matching-overload] + int(V.graph.sizevars.shape_env.size_hint(sym_var)) + for sym_var in self.sym_inputs + ] + + if len(sym_inputs) == 0: + # Sanity check that args are same layout as example inputs + # Only do it if there are no symbolic inputs, otherwise + # the dynamic dim will be realized to the same size as args + for ar, example_inp in zip(args, self.example_inputs): + # Sanity check that args are same layout as example inputs + if isinstance(ar, torch.Tensor): + assert isinstance(example_inp, torch.Tensor) + assert ar.shape == example_inp.shape + assert ar.stride() == example_inp.stride() + + with V.set_graph_handler(bm_graph_lowering): + # Don't bother autotuning on Triton here + with inductor_config.patch( + max_autotune=False, + max_autotune_gemm=False, + max_autotune_gemm_backends="ATEN", + ): + bm_graph_lowering.run(*self.example_inputs) + mod = bm_graph_lowering.compile_to_module() + + return mod, sym_inputs + + def benchmark(self, *args: list[Any], out: torch.Tensor) -> float: + """ + Regular benchmarking: compile and use benchmarker with warmup/rep. + """ + if self._compiled_module is None: + mod, sym_inputs = self._compile_for_benchmarking(*args) + self._compiled_module = mod + self._compiled_sym_inputs = sym_inputs + else: + mod = self._compiled_module + sym_inputs = self._compiled_sym_inputs + assert sym_inputs is not None # Type narrowing + + bm_func = mod.call + if config.profile_bandwidth_with_do_bench_using_profiling: + return do_bench_using_profiling(lambda: bm_func([*sym_inputs, *args])) + return benchmarker.benchmark( + # Shallow clone args since bm_func may clear args + lambda: bm_func([*sym_inputs, *args]), + device=benchmarker.infer_device(*sym_inputs, *args), + ) + + def benchmark_collective(self, *args: list[Any], out: torch.Tensor) -> None: + """ + Only run once with cached compiled module. + Called by benchmark_collective_choice which handles warmup + and timing with barrier synchronization across all ranks. + """ + if self._compiled_module is None: + mod, sym_inputs = self._compile_for_benchmarking(*args) + self._compiled_module = mod + self._compiled_sym_inputs = sym_inputs + else: + mod = self._compiled_module + sym_inputs = self._compiled_sym_inputs + assert sym_inputs is not None # Type narrowing + + bm_func = mod.call + bm_func([*sym_inputs, *args]) + + def hash_key(self) -> str: + return "-".join( + [ + self.name.rsplit("_", 1)[0], + *[str(inp.get_size()) for inp in self.input_nodes], + *[str(inp.get_stride()) for inp in self.input_nodes], + str(self.gm.graph), + ] + ) + + def output_node(self) -> Union[ir.TensorBox, ir.ShapeAsConstantBuffer]: + return ir.TensorBox.create( + ir.SubgraphBuffer( + layout=self.layout, + input_nodes=self.input_nodes, + gm=self.gm, + example_inputs=self.example_inputs, + subgraph_name=self.name, + ) + ) + + def info_dict(self) -> dict[str, Any]: + """Information returned here is logged to the autotune log file when that is enabled.""" + return { + "backend": "subgraph", + "kernel_name": self.name, + } + + def autoheuristic_id(self) -> str: + return f"subgraph_{self.name}" + + +class SubgraphTemplate(KernelTemplate): + """ + A template for subgraph evaluation to be used in autotuning. + + This class allows creating customized subgraphs that can be appended + as choices during the autotuning process, enabling the selection of + optimal implementations for complex operations. + """ + + index_counter = itertools.count() + + def __init__( + self, + name: str, + ): + """ + Initialize a subgraph template. + + Args: + name: The name of this template + graph: The FX graph + """ + super().__init__(name=name) + + def generate( # type: ignore[override] + self, + name: str, + input_nodes: list[Buffer], + layout: Layout, + make_fx_graph: Callable[..., Any], + description: str = "", + **kwargs: Any, + ) -> SubgraphChoiceCaller: + """ + Generate a SubgraphChoiceCaller instance for autotuning. + + Args: + name: The name for this subgraph choice + input_nodes: List of input nodes to the subgraph + layout: Memory layout information for the output + make_fx_graph: Callable that creates the FX graph for this subgraph + description: Optional description of this choice + **kwargs: Additional keyword arguments + + Returns: + SubgraphChoiceCaller: A callable object that can be used for autotuning + """ + + return SubgraphChoiceCaller( + name=f"{name}_{next(SubgraphTemplate.index_counter)}", + input_nodes=input_nodes, + layout=layout, + description=description, + make_fx_graph=make_fx_graph, + ) + + def generate_custom_op_choices( + self, + name: str, + decompositions: list[Callable[..., Any]], + input_nodes: list[Buffer], + non_tensor_args: list[dict[str, Any]], + default_impl: Callable[..., Any] | None = None, + ) -> list[SubgraphChoiceCaller]: + """ + Generate multiple SubgraphChoiceCaller instances for custom op autotuning. + + This method extends SubgraphTemplate to support custom op decompositions, + allowing multiple implementations to compete in autotuning. + + Args: + name: Base name for the choices + decompositions: List of decomposition functions to compete in autotuning + input_nodes: List of tensor inputs. All tensor arguments must be passed here. + non_tensor_args: List of non-tensor kwargs only, one dict per corresponding decomposition. + default_impl: Default implementation for layout inference + + Returns: + List of SubgraphChoiceCaller instances for autotuning + """ + if not decompositions: + return [] + + assert len(decompositions) == len(non_tensor_args), ( + f"decompositions and non_tensor_args must have same length, " + f"got {len(decompositions)} decompositions and {len(non_tensor_args)} kwargs" + ) + + # Infer layouts and ensure layout consistency for fair autotuning comparison + layouts = [ + self._infer_custom_op_layout(input_nodes, decomp, kwargs, default_impl) + for decomp, kwargs in zip(decompositions, non_tensor_args) + ] + + # Validate all decompositions produce equivalent layouts for fair comparison + self._validate_layout_equivalence(name, decompositions, layouts) + layout = layouts[0] # All layouts are now validated to be equivalent + + choices: list[SubgraphChoiceCaller] = [] + for decomp, decomp_kwargs in zip(decompositions, non_tensor_args): + # Create make_fx_graph function for this decomposition + import functools + + def make_fx_graph( + *args: Any, + decomp: Callable[..., Any] = decomp, + decomp_kwargs: dict[str, Any] = decomp_kwargs, + ) -> Any: + # decomp_kwargs contains all merged parameters: CustomOpConfig params + runtime kwargs + from torch.fx.experimental.proxy_tensor import make_fx + + from ..decomposition import select_decomp_table + + decomposition_table = select_decomp_table() + + return make_fx( + functools.partial(decomp, **decomp_kwargs), + decomposition_table=decomposition_table, + )(*args) + + # Generate descriptive name for this variant + variant_name = self._generate_variant_name(decomp, decomp_kwargs) + + choice = self.generate( + name=f"{name}_{variant_name}", + input_nodes=input_nodes, + layout=layout, + make_fx_graph=make_fx_graph, + description=f"CustomOp {decomp.__name__}", + ) + choices.append(choice) + + return choices + + def _generate_variant_name( + self, decomp: Callable[..., Any], kwargs: dict[str, Any] + ) -> str: + """Generate a descriptive name for a decomposition variant with its parameters.""" + base_name = decomp.__name__ + if not kwargs: + return base_name + param_suffix = "_".join(f"{k}_{v}" for k, v in sorted(kwargs.items())) + return f"{base_name}_{param_suffix}" + + def _validate_non_tensor_kwargs(self, kwargs: dict[str, Any]) -> None: + """Validate that kwargs contains only non-tensor arguments.""" + for key, value in kwargs.items(): + assert not isinstance(value, (torch.Tensor, Buffer)), ( + f"kwargs['{key}'] contains tensor {type(value)}. " + f"Tensor arguments should be in input_nodes, not kwargs. " + f"Only scalar/non-tensor parameters should be in kwargs." + ) + + def _validate_layout_equivalence( + self, + op_name: str, + decompositions: list[Callable[..., Any]], + layouts: list[Layout], + ) -> None: + """Ensure all layouts have consistent stride, device, dtype, and sizes for fair autotuning.""" + if not layouts: + return + + reference = layouts[0] + for i, layout in enumerate(layouts[1:], start=1): + if (layout.device, layout.dtype, layout.size, layout.stride) != ( + reference.device, + reference.dtype, + reference.size, + reference.stride, + ): + raise AssertionError( + f"Layout mismatch in custom op '{op_name}': " + f"decomposition '{decompositions[i].__name__}' produces " + f"({layout.device}, {layout.dtype}, {layout.size}, {layout.stride}) " + f"but '{decompositions[0].__name__}' produces " + f"({reference.device}, {reference.dtype}, {reference.size}, {reference.stride})" + ) + + def _infer_custom_op_layout( + self, + input_nodes: list[Buffer], + function_decomposition: Callable[..., Any], + kwargs: dict[str, Any], + default_impl: Callable[..., Any] | None = None, + ) -> Layout: + """Infer output layout for custom ops using the default implementation when available. + Note that the Subgraph assumes custom ops return exactly one tensor output. + TODO: Add support for multiple output custom ops. + """ + import functools + + from torch._inductor.virtualized import V + + # Assert kwargs contain only non-tensor arguments + self._validate_non_tensor_kwargs(kwargs) + + with V.fake_mode: + example_inputs = [] + for inp in input_nodes: + raw_shape = inp.get_size() + concrete_shape = V.graph.sizevars.size_hints( + raw_shape, fallback=config.unbacked_symint_fallback + ) + fake_tensor = torch.empty( + concrete_shape, dtype=inp.get_dtype(), device=inp.get_device() + ) + example_inputs.append(fake_tensor) + + fn = functools.partial(function_decomposition, **kwargs) + output = fn(*example_inputs) + + # Assert single output + assert isinstance(output, torch.Tensor), ( + f"Expected single tensor output, got {type(output)}. " + f"Multi-output custom ops not yet supported in autotuning." + ) + + return FixedLayout( + device=output.device, + dtype=output.dtype, + size=output.shape, + stride=output.stride(), + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/triton.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/triton.py new file mode 100644 index 0000000000000000000000000000000000000000..4d6b671f15db31bfd8e2ddea7e556e9867b93227 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/triton.py @@ -0,0 +1,6263 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import collections +import contextlib +import dataclasses +import functools +import itertools +import logging +import math +import operator +import os +import textwrap +from abc import abstractmethod +from collections.abc import Callable, Iterable, Sequence +from functools import lru_cache +from typing import Any, cast, Optional, TYPE_CHECKING, TypeVar, Union + +import sympy +from sympy.printing.precedence import PRECEDENCE + +import torch +import torch._logging +import torch.utils._pytree as pytree +from torch._dynamo.device_interface import get_interface_for_device +from torch._dynamo.utils import identity, preserve_rng_state +from torch._prims_common import is_integer_dtype +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.functions import CeilDiv, FloorDiv, ModularIndexing +from torch.utils._triton import ( + get_triton_version, + has_triton_package, + has_triton_stable_tma_api, +) + +from ...utils._sympy.symbol import free_symbol_is_type, prefix_str, symbol_is_type, SymT +from ...utils._sympy.value_ranges import ValueRanges +from .. import config, ir, metrics, utils +from ..async_compile import AsyncCompile +from ..codecache import code_hash, get_path, PyCodeCache, write_atomic +from ..debug import set_kernel_post_grad_provenance_tracing +from ..ops_handler import DefaultHandler +from ..runtime import triton_heuristics +from ..runtime.benchmarking import benchmarker +from ..runtime.hints import ( + AutotuneHint, + DeviceProperties, + TRITON_MAX_BLOCK, + TRITON_MAX_RSPLIT, +) +from ..runtime.runtime_utils import get_max_y_grid, next_power_of_2 +from ..scheduler import BaseSchedulerNode, FusedSchedulerNode, Scheduler, SchedulerNode +from ..shape_propagation import get_broadcasted_shape +from ..utils import ( + cache_on_self, + DelayMaybeLine, + DelayReplaceLine, + get_bounds_index_expr, + get_fused_kernel_name, + get_kernel_metadata, + is_welford_reduction, + Placeholder, + prefix_is_reduction, + sympy_dot, + sympy_product, + sympy_subs, + triton_type, + triton_version_uses_attrs_dict, + upcast_compute_type, +) +from ..virtualized import _ops as ops, ReductionType, StoreMode, V +from ..wrapper_benchmark import get_kernel_category_by_source_code +from .block_analysis import BlockPatternMatcher +from .common import ( + ArgName, + BackendFeature, + ConstexprArg, + CSE, + CSEVariable, + DeferredLine, + IndentedBuffer, + InplacedBuffer, + is_buffer_removed, + OpOverrides, + PythonPrinter, + RemovedArg, + SizeArg, + TensorArg, + WorkspaceArg, + WorkspaceZeroMode, +) +from .simd import ( + constant_repr, + IterationRanges, + IterationRangesEntry, + IterationRangesRoot, + PartialAccumulate, + SIMDKernel, + SIMDScheduling, +) +from .triton_utils import ( + config_of, + equal_1_arg_indices, + non_constexpr_signature, + should_unwrap_unspec_arg, + signature_to_meta, +) +from .wrapper import SymbolicCallArg + + +if TYPE_CHECKING: + from types import ModuleType + + from torch._inductor.dtype_propagation import DtypePropagationOpsHandler + from torch.fx.experimental.symbolic_shapes import ShapeEnv + + from ..ir import IRNode + from .common import BlockShapeType + from .simd_kernel_features import SIMDKernelFeatures + + _T = TypeVar("_T") + +log = logging.getLogger(__name__) +perf_hint_log = torch._logging.getArtifactLogger(__name__, "perf_hints") +schedule_log = torch._logging.getArtifactLogger(__name__, "schedule") +fusion_log = torch._logging.getArtifactLogger(__name__, "fusion") +async_compile = AsyncCompile() + + +def get_triton_reduction_function(reduction_type): + use_helper = reduction_type in ("any", "max", "min", "prod") + module = "triton_helpers" if use_helper else "tl" + if reduction_type in ("max", "min"): + return f"{module}.{reduction_type}2" + else: + return f"{module}.{reduction_type}" + + +def is_sympy_integer_like(expr: object): + """ " + Is this expression a Sympy Integer or is it an integer sympy Expr + containing no free symbols. The latter case can happen with Identity expr. + """ + if not isinstance(expr, sympy.Expr): + return False + return isinstance(expr, sympy.Integer) or ( + expr.is_integer and len(expr.free_symbols) == 0 + ) + + +class OpDtypeSupport: + """ + Some Triton ops such as libdevice and tl.math only support float32 and float64. + This class records which dtypes are supported by specific IR ops. + """ + + supported_dtypes: dict[str, OrderedSet[torch.dtype]] = {} + convert_outputs: dict[str, bool] = {} + + @classmethod + def register_upcast(cls, func: Callable[..., str], convert_output: bool) -> None: + op_name = func.__name__ + cls.supported_dtypes[op_name] = OrderedSet([torch.float32, torch.float64]) + cls.convert_outputs[op_name] = convert_output + + +@lru_cache(None) +def gen_attr_descriptor_import() -> str: + """ + import AttrsDescriptor if the triton version is new enough to have this + class defined. + """ + if not has_triton_package(): + return "" + + import triton.compiler.compiler + + # Note: this works because triton.compiler.compiler imports AttrsDescriptor from triton.backends.compiler + # When support for the legacy AttrsDescriptor is removed then this import path should be changed. + if hasattr(triton.compiler.compiler, "AttrsDescriptor"): + return "from triton.compiler.compiler import AttrsDescriptor" + else: + return "" + + +@lru_cache(None) +def gen_common_triton_imports() -> str: + imports = IndentedBuffer() + imports.splice( + """ + import triton + import triton.language as tl + """ + ) + if attr_desc := gen_attr_descriptor_import(): + imports.writeline(attr_desc) + + imports.splice( + """ + from torch._inductor.runtime import triton_helpers, triton_heuristics + from torch._inductor.runtime.triton_helpers import libdevice, math as tl_math + from torch._inductor.runtime.hints import AutotuneHint, ReductionHint, TileHint, DeviceProperties + """ + ) + return imports.getvalue() + + +class TritonSymbols: + """ + Stores sympy.Symbol instances and constants associated with triton codegen. + """ + + reduction_types = OrderedSet([SymT.R0_INDEX, SymT.R1_INDEX]) + block_types = OrderedSet([SymT.XBLOCK, SymT.YBLOCK, SymT.ZBLOCK, *reduction_types]) + + block_offsets = { + symt: sympy.Symbol(f"{prefix_str[symt]}offset", integer=True, nonnegative=True) + for symt in block_types + } + + block_sizes = { + symt: sympy.Symbol( + f"{prefix_str[symt].upper()}BLOCK", integer=True, positive=True + ) + for symt in block_types + } + + @classmethod + def get_block_shape(cls, expr: sympy.Expr) -> BlockShapeType: + # return block shape of sympy Expression + # e.g., + # tmp13 = y1 + # tmp14 = x0 - tmp13 + # + # get_block_shape(y1) = (YBLOCK,1,1) + # get_block_shape(x0-tmp13) = (YBLOCK,XBLOCK,1) + + expr_shape: BlockShapeType = () + expr_vars = expr.free_symbols + for var in expr_vars: + if symbol_is_type(var, SymT.TMP): + cse_var = V.kernel.cse.varname_map[var.name] + var_shape = cse_var.shape + elif symbol_is_type( + var, + ( + SymT.UNBACKED_INT, + SymT.SIZE, + SymT.PRECOMPUTED_SIZE, + SymT.INDEX, + SymT.FLOAT, + SymT.UNBACKED_FLOAT, + ), + ): + var_shape = () + else: + symbol_matches = [ + symt for symt in cls.block_types if symbol_is_type(var, symt) + ] + assert len(symbol_matches) == 1, f"Ambiguous type: {var.name}" + + sym = symbol_matches[0] + ndim = V.kernel.triton_tensor_ndim() + shape = ["1"] * ndim + + tree_match = [ + tree + for tree in V.kernel.active_range_trees() + if prefix_str[sym] == tree.prefix + ] + assert len(tree_match) == 1, "# of Match expected to 1" + + shape[tree_match[0].tensor_dim] = str(cls.get_block_size(tree_match[0])) + var_shape = tuple(shape) + + # Union current variable shape + expr_shape = get_broadcasted_shape(expr_shape, var_shape) + + assert expr_shape is not None + + return expr_shape + + @classmethod + def get_block_size(cls, tree: IterationRanges) -> sympy.Symbol: + return cls.block_sizes[tree.symt] + + @classmethod + def get_block_offset(cls, tree: IterationRanges) -> sympy.Symbol: + return cls.block_offsets[tree.symt] + + +@dataclasses.dataclass +class IndexingOptions: + index_str: str + mask_vars: OrderedSet[str] + expand_str: Optional[str] + _has_rindex: bool + index: sympy.Expr + expand_shape: Optional[Sequence[Union[int, str]]] + + def has_mask(self) -> bool: + return bool(self.mask_vars) + + def has_indirect(self) -> bool: + return free_symbol_is_type(self.index, SymT.TMP) + + def has_rindex(self) -> bool: + return self._has_rindex + + def has_tmpmask(self) -> bool: + return any(str(mask).startswith("tmp") for mask in self.mask_vars) + + def has_rmask(self) -> bool: + return any(str(mask).startswith("r") for mask in self.mask_vars) + + @property + def mask_str(self) -> str: + # The sorted call is added to make sure the order is still + # deterministic if self.mask_vars contains mix of string + # and TritonCSEVariable + return ( + " & ".join(sorted(map(str, self.mask_vars))) if self.mask_vars else "None" + ) + + +@dataclasses.dataclass +class BlockDescriptorOptions: + """ + This is a base class that describes a block descriptor used in Triton kernels. + It can be used to create either a tensor descriptor (with TensorDescriptorOptions) + or a block pointer (with BlockPtrOptions). + """ + + params: BlockParameters + constant_offset: sympy.Expr + order: list[int] + mask_vars: OrderedSet[str] + broadcast_shape: Sequence[sympy.Expr] + broadcasting_dims: list[bool] + final_shape: Sequence[sympy.Expr] + # If the BlockParameters have been sorted using a particular stride order + # transpose load / store blocks at runtime using the information in + # stride_sorter. + stride_sorter: BlockParameters.StrideSorter + _boundary_check: Optional[list[int]] = None + # Can we safely lift the constructor + # to the top of the kernel? + can_lift: bool = False + + @property + def shape(self) -> list[sympy.Expr]: + return self.params.shape + + @property + def block_shape(self) -> list[sympy.Expr]: + return self.params.block_shape + + @property + def strides(self) -> list[sympy.Expr]: + return self.params.strides + + @property + def offsets(self) -> list[sympy.Expr]: + return self.params.offsets + + @classmethod + def create( + cls, + *, + params: BlockParameters, + constant_offset: sympy.Expr, + range_trees: list[IterationRangesRoot], + mask_vars: OrderedSet[str], + get_max_block: Callable[[str], int], + stride_sorter_cls: type[BlockParameters.StrideSorter], + can_lift: bool = False, + ) -> BlockDescriptorOptions: + """Helper to create a BlockDescriptorOptions instance""" + + sizevars = V.graph.sizevars + + def lookup_size(exprs: Iterable[sympy.Expr]) -> list[sympy.Expr]: + return [sizevars.lookup_precomputed_size(expr) for expr in exprs] + + # Look up precomputed sizes + params.shape = lookup_size(params.shape) + params.strides = lookup_size(params.strides) + + # Strip out dimensions of size 1. + # Size 1 dimensions are redundant since the triton kernel shape + # will be e.g. [YBLOCK, XBLOCK], so tl.reshape would just remove these + # dimensions anyway + singleton_dims = [ + sizevars.statically_known_equals(dim, 1) for dim in params.block_shape + ] + if all(singleton_dims): + # Handle a pure singletons, e.g. [1, 1] + singleton_dims[-1] = False + + # Drop singleton dimensions from the block descriptor. + params = params.remove_dims(singleton_dims) + + # Maybe reorder dimensions based on strides + # with tl.trans applied at load / store time + params, stride_sorter = params.maybe_sort_with_stride_order( + stride_sorter_cls=stride_sorter_cls, shape_env=V.graph._shape_env + ) + + # Strip out dimensions of stride 0. + # These will be restored with tl.broadcast_to. + broadcasting_dims = [ + sizevars.statically_known_equals(stride, 0) for stride in params.strides + ] + + # Record the post-broadcast shape before broadcasting dims are removed. + # The pre-broadcast shape is identical to this, except broadcasting dims are + # replaced with 1. + broadcast_shape = params.block_shape + + # Drop broadcasting dims from the block descriptor. + params = params.remove_dims(broadcasting_dims) + + # Compute the final shape, adjusting for special kernel types. + final_shape = [TritonSymbols.get_block_size(tree) for tree in range_trees] + if V.kernel.no_x_dim: + assert range_trees[0].prefix == "x" + final_shape.pop(0) + + reduction_ndim = V.kernel.num_reduction_dims + if ( + not V.kernel.inside_reduction + and len(params.strides) == len(V.kernel.numels) - reduction_ndim + and V.kernel.features.is_reduction() + ): + # Need to expand rank to match the rank used inside the reduction loop + final_shape += [sympy.S.One] * reduction_ndim + + try: + # Get permutation to sort strides in ascending order. + # This is used as the order argument in tl.make_block_ptr + order = utils.argsort_sym(V.graph._shape_env, params.strides) + except AssertionError: + # Symbolic shapes, failed to evaluate comparison expression + order = list(reversed(range(len(params.strides)))) + + result = cls( + params=params, + constant_offset=V.graph.sizevars.lookup_precomputed_size(constant_offset), + order=order, + mask_vars=mask_vars, + final_shape=final_shape, + broadcast_shape=broadcast_shape, + broadcasting_dims=broadcasting_dims, + stride_sorter=stride_sorter, + can_lift=can_lift, + ) + result.compute_boundary_check(get_max_block, range_trees) + return result + + def replace_offset( + self, expr: sympy.Expr, replacement: sympy.Expr, symt: SymT + ) -> sympy.Expr: + """ + Replaces instances of {symt}_offset with the new expression. + """ + roffset = TritonSymbols.block_offsets[symt] + return sympy_subs(expr, {roffset: replacement}) + + def remove_roffsets(self, expr: sympy.Expr) -> sympy.Expr: + for symt in TritonSymbols.reduction_types: + expr = self.replace_offset(expr, sympy.Integer(0), symt) + return expr + + def compute_boundary_check( + self, + get_max_block: Callable[[str], int], + range_trees: list[IterationRangesRoot], + ) -> None: + """List of indices to pass to tl.load(boundary_check=...)""" + sizevars = V.graph.sizevars + + # Substitute maximum block sizes in shape expressions. + # This works in multiple_of checks because block sizes are powers of 2. + block_to_max: dict[sympy.Expr, Any] = { + TritonSymbols.block_sizes[t.symt]: get_max_block(prefix_str[t.symt]) + for t in range_trees + } + + # Also see Note: Constant mask optimisation + # if ynumel / YBLOCK > max_ygrid, then the z dimension is used to handle + # the remaining programs that cannot fit into the y dimension. This means + # it's possible that more than the required number of programs are launched, + # possibly leading to out-of-bounds accesses. So even if ynumel divides YBLOCK, + # boundary checking is required in the dimensions that are based on YBLOCK + # e.g. for [YBLOCK // 16, YBLOCK, XBLOCK] dimensions 0 and 1 need boundary + # checks when max_ygrid is exceeded. + needs_overflow_grid = any(map(V.kernel.needs_yz_grid_overflow, range_trees)) + self._boundary_check = [ + idx + for idx in range(len(self.shape)) + if ( + not sizevars.statically_known_equals(self.strides[idx], sympy.S.Zero) + and ( + ( + needs_overflow_grid + and TritonSymbols.block_sizes[SymT.YBLOCK] + in self.block_shape[idx].free_symbols + ) + or ( + not sizevars.statically_known_multiple_of( + self.shape[idx], self.block_shape[idx] + ) + and not sizevars.statically_known_multiple_of( + self.shape[idx], + sympy_subs(self.block_shape[idx], block_to_max), + ) + ) + ) + and not ( + V.kernel.no_x_dim + and self.block_shape[idx] == TritonSymbols.block_sizes[SymT.XBLOCK] + ) + ) + ] + + def boundary_check(self) -> list[int]: + assert self._boundary_check is not None + return self._boundary_check + + def has_indirect(self) -> bool: + return False # block_ptr can't do indirect indexing + + def has_rindex(self) -> bool: + return any( + free_symbol_is_type(expr, TritonSymbols.reduction_types) + for expr in self.block_shape + ) + + def has_rmask(self) -> bool: + return self.has_rindex() + + def has_tmpmask(self) -> bool: + return False # block_ptr can't do indirect indexing + + def has_mask(self) -> bool: + return bool(self.boundary_check()) + + def codegen_broadcast_and_reshape( + self, + value: str, + initial_shape: Sequence[sympy.Expr], + final_shape: Sequence[sympy.Expr], + allow_implicit: bool, + for_store: bool, + ) -> str: + """ + Generate a broadcast and a reshape for the block descriptor. + This restores stride-0 dimensions which were removed from the block descriptor. + + Transposes are also applied to the input using self.stride_sorter: + if for_store is True: + - First Broadcast the value. Since self.broadcast_shape is stored in + descending stride order, it must be reverted to the original order + since the input value does not have dims with descending strides + - After, transpose the broadcasted value so that dimensions are in + descending stride order + - Finally reshape to the block shape + else (for load): + - First broadcast the value to self.broadcast_shape (strides are descending) + - Then transpose the value so that dimensions no longer have descending strides + - Finally reshape the block to the final kernel tile shape + """ + broadcast_shape = self.broadcast_shape + broadcasting_dims = self.broadcasting_dims + + # If the block parameters have been sorted by descending strides, + # permute the broadcasting parameters so that they are compatible + # with the value being stored. This is because the dimensions + # of the value being stored are not sorted in descending stride order, + # but the broadcasting parameters are based on the dims in sorted order + if for_store: + broadcast_shape = self.stride_sorter.revert(self.broadcast_shape) + broadcasting_dims = self.stride_sorter.revert(self.broadcasting_dims) + + # Reshape to add singletons. + pre_broadcast_shape = [ + sympy.S.One if is_broadcasting else dim + for dim, is_broadcasting in zip(broadcast_shape, broadcasting_dims) + ] + value = triton_reshape(value, initial_shape, pre_broadcast_shape) + + if ( + not self.stride_sorter.is_identity + and not for_store + and len(pre_broadcast_shape) == len(final_shape) + ): + # If all we need to do is transpose to match the final shape + # with implicit broadcasting then we don't need an explicit broadcast + # unless the caller requests it. So just test implicit broadcast support + # with the transposed pre broadcast shape + pre_broadcast_shape = self.stride_sorter.revert(pre_broadcast_shape) + + # Broadcast singletons. + # For loads, we can often implicitly broadcast singleton dimensions. + # We need an explicit broadcast for stores, or if the final reshape does more + # than add singletons. + sizevars = V.graph.sizevars + supports_implicit_broadcast = allow_implicit and ( + len(pre_broadcast_shape) == len(final_shape) + and all( + sizevars.statically_known_equals(pre_dim, 1) + or sizevars.statically_known_equals(pre_dim, post_dim) + for pre_dim, post_dim in zip(pre_broadcast_shape, final_shape) + ) + ) + + if any(self.broadcasting_dims) and not supports_implicit_broadcast: + value = ( + f"tl.broadcast_to({value}, {V.kernel.index_to_str(broadcast_shape)})" + ) + + old_shape = self.broadcast_shape + if not self.stride_sorter.is_identity: + # if for_store the transform is + # (non-descending strides) broadcasted kernel tile shape + # -> (descending strides) block descriptor shape + # o/w if loading the transform is + # (descending strides) ((maybe implicitly) broadcasted block shape + # -> (non-descending) (maybe implicitly) broadcasted kernel tile shape + permute_dims = ( + self.stride_sorter.sort_idx + if for_store + else self.stride_sorter.revert_sort_idx + ) + value = f"tl.trans({value}, {permute_dims})" + old_shape = ( + self.broadcast_shape + if for_store + else self.stride_sorter.revert(self.broadcast_shape) + ) + + # Reshape to the final shape. + value = triton_reshape(value, old_shape, final_shape) + + return value + + +@dataclasses.dataclass +class TensorDescriptorOptions(BlockDescriptorOptions): + def format(self, name: str, roffset=True) -> str: + """ + Codegen a call to tl.make_tensor_descriptor() + + Args: + name: variable name for pointer + roffset: unused, but kept for compatibility with BlockPtrOptions.format() + + Returns: + "tl.make_tensor_descriptor(...)" + """ + + f = V.kernel.index_to_str + args = [ + ( + f"{name} + ({f(self.constant_offset)})" + if self.constant_offset != 0 + else name + ), + f"shape={f(self.shape)}", + f"strides={f(self.strides)}", + f"block_shape={f(self.block_shape)}", + ] + + return f"tl.make_tensor_descriptor({', '.join(args)})" + + +@dataclasses.dataclass +class BlockPtrOptions(BlockDescriptorOptions): + def replace_offset( + self, expr: sympy.Expr, replacement: sympy.Expr, symt: SymT + ) -> sympy.Expr: + """ + Replaces instances of {symt}_offset with the new expression. + """ + roffset = TritonSymbols.block_offsets[symt] + return sympy_subs(expr, {roffset: replacement}) + + def remove_roffsets(self, expr: sympy.Expr) -> sympy.Expr: + for symt in TritonSymbols.reduction_types: + expr = self.replace_offset(expr, sympy.Integer(0), symt) + return expr + + def format(self, name: str, roffset=True) -> str: + """ + Codegen a call to tl.make_block_ptr() + + Args: + name: variable name for pointer + roffset: should rn_offset be included in offsets=..., for use with tl.advance() + + Returns: + "tl.make_block_ptr(...)" + """ + f = V.kernel.index_to_str + offsets = [*self.offsets] + if not roffset: + offsets = [self.remove_roffsets(offset) for offset in offsets] + args = [ + ( + f"{name} + ({f(self.constant_offset)})" + if self.constant_offset != 0 + else name + ), + f"shape={f(self.shape)}", + f"strides={f(self.strides)}", + f"block_shape={f(self.block_shape)}", + f"order={f(self.order)}", + f"offsets={f(offsets)}", + ] + return f"tl.make_block_ptr({', '.join(args)})" + + def advance_roffset(self, symt: SymT) -> sympy.Expr: + """ + Codegen string to pass to tl.advance(name, ...). + + Advance is the difference between offsets in each loop iteration. + To compute it, we replace rN_offset with multiples of RN_BLOCK. + Since we expect rN_offset to vary in range(0, rN_numel, RN_BLOCK), the first + iteration has rN_offset=0, while the second has rN_offset=RN_BLOCK. + """ + rblock = TritonSymbols.block_sizes[symt] + advance = [ + ( + self.replace_offset(offset, rblock, symt) + - self.replace_offset(offset, sympy.S.Zero, symt) + ) + for offset in self.offsets + ] + return advance + + +def triton_reshape( + value: str, old_shape: Sequence[sympy.Expr], new_shape: Sequence[sympy.Expr] +) -> str: + """Workaround https://github.com/triton-lang/triton/issues/2836""" + assert isinstance(old_shape, list) and isinstance(new_shape, list) + + old_shape_str = [V.kernel.index_to_str(shape) for shape in old_shape] + new_shape_str = [V.kernel.index_to_str(shape) for shape in new_shape] + + if old_shape_str == new_shape_str: + return value + if [s for s in new_shape_str if s != "1"] != old_shape_str: + return f"tl.reshape({value}, [{', '.join(new_shape_str)}])" + # rewrite to [:, None] syntax, which is less buggy + idx = 0 + expand = [] + for size in new_shape_str: + if idx < len(old_shape_str) and size == old_shape_str[idx]: + expand.append(":") + idx += 1 + else: + assert size == "1" + expand.append("None") + assert idx == len(old_shape_str) + return f"{value}[{', '.join(expand)}]" + + +def enable_pdl_codegen(): + if not torch._inductor.config.triton.enable_pdl: + return False + major, _ = torch.cuda.get_device_capability(torch.cuda.current_device()) + return major >= 9 + + +# NB: Inheriting from PythonPrinter is somewhat dangerous, because there are a +# number of operators which Triton "implements", but in a way that is +# inconsistent with Python semantics (and consistent with C semantics). We +# must override all of these, or it is potential silent correctness problem +class TritonPrinter(PythonPrinter): + def _print_TruncToInt(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return ( + f"libdevice.trunc({self._print(expr.args[0])}).to({V.kernel.index_dtype})" + ) + + def _print_Float(self, expr: sympy.Expr) -> str: + if expr.is_integer: + # sympy considers 0.0 to be integer, but triton doesn't. + # this workaround prints the float as an integer + # xref: https://github.com/sympy/sympy/issues/26620 + ret = str(int(expr)) + elif config.is_fbcode() and torch.version.hip: + ret = f"{expr}" + else: + ret = f"tl.full([], {expr}, tl.float64)" + return ret + + def _print_ToFloat(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + s = self.parenthesize(expr.args[0], PRECEDENCE["Atom"] - 0.5) + return f"{s}.to(tl.float64)" + + def _print_PythonMod(self, expr: sympy.Expr) -> str: + quot, div = expr.args + if quot.is_nonnegative and div.is_nonnegative: + return self.stringify(expr.args, " % ", PRECEDENCE["Atom"] - 0.5) + quot_s = self._print(quot) + div_s = self._print(div) + return f"triton_helpers.remainder_integer({quot_s}, {div_s})" + + def _print_FloorDiv(self, expr: sympy.Expr) -> str: + assert expr.is_integer + quot, div = expr.args + if quot.is_nonnegative and div.is_nonnegative: + return self.stringify(expr.args, " // ", PRECEDENCE["Atom"] - 0.5) + quot_s = self._print(quot) + div_s = self._print(div) + return f"triton_helpers.div_floor_integer({quot_s}, {div_s})" + + # TODO: This is wrong, when lhs, rhs > 2**53, Python does a higher + # precision algorithm, which we would need to replicate here + def _print_IntTrueDiv(self, expr: sympy.Expr) -> str: + return self.stringify(expr.args, " / ", PRECEDENCE["Atom"] - 0.5) + + # NB: sympy.floor/ceiling produce integers, so we have to do the + # conversion to index dtype + def _print_floor(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return ( + f"libdevice.floor({self._print(expr.args[0])}).to({V.kernel.index_dtype})" + ) + + def _print_FloorToInt(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return ( + f"libdevice.floor({self._print(expr.args[0])}).to({V.kernel.index_dtype})" + ) + + def _print_ceiling(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"libdevice.ceil({self._print(expr.args[0])}).to({V.kernel.index_dtype})" + + def _print_CeilToInt(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"libdevice.ceil({self._print(expr.args[0])}).to({V.kernel.index_dtype})" + + def _helper_sqrt(self, expr: sympy.Expr) -> str: + # work around for https://github.com/pytorch/pytorch/issues/165738 + if torch.xpu.is_available(): + return f"libdevice.sqrt(({self._print(expr)}).to(tl.float32))" + return f"tl.sqrt_rn(({self._print(expr)}).to(tl.float32))" + + def _print_FloatPow(self, expr: sympy.Expr) -> str: + return ( + f"libdevice.pow({self._print(expr.args[0])}, {self._print(expr.args[1])})" + ) + + def _print_PowByNatural(self, expr: sympy.Expr) -> str: + if expr.args[0].is_Integer: + return f"libdevice.pow({float(expr.args[0])}, {self._print(expr.args[1])})" + return ( + f"libdevice.pow({self._print(expr.args[0])}, {self._print(expr.args[1])})" + ) + + def _print_Where(self, expr: sympy.Expr) -> str: + c = self.doprint(expr.args[0]) + p = self.doprint(expr.args[1]) + q = self.doprint(expr.args[2]) + return f"tl.where({c}, {p}, {q})" + + def _print_min_max_helper(self, expr: sympy.Expr, cmp: str) -> str: + """ + Helper for max/min code generation. + cmp: > or < + """ + if len(expr.args) == 1: + return self._print(expr.args[0]) + + mid = len(expr.args) // 2 + cls = type(expr) + a = self._print(cls(*expr.args[:mid])) + b = self._print(cls(*expr.args[mid:])) + + # Use a macro so we can propagate constexprs. + # https://github.com/triton-lang/triton/issues/3815 + a, b = tuple(f"({x})" for x in (a, b)) + assert cmp in (">", "<"), f"Unexpected comparator: '{cmp}'" + return f"({a} * ({a} {cmp}= {b}) + {b} * ({b} {cmp} {a}))" + + def _print_Min(self, expr: sympy.Expr) -> str: + return self._print_min_max_helper(expr, "<") + + def _print_Max(self, expr: sympy.Expr) -> str: + return self._print_min_max_helper(expr, ">") + + def _print_Abs(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"tl_math.abs({self._print(expr.args[0])})" + + def _print_OpaqueUnaryFn_cos(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"libdevice.cos(({self._print(expr.args[0])}).to(tl.float32))" + + def _print_OpaqueUnaryFn_cosh(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"libdevice.cosh(({self._print(expr.args[0])}).to(tl.float32))" + + def _print_OpaqueUnaryFn_acos(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"libdevice.acos(({self._print(expr.args[0])}).to(tl.float32))" + + def _print_OpaqueUnaryFn_sin(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"libdevice.sin(({self._print(expr.args[0])}).to(tl.float32))" + + def _print_OpaqueUnaryFn_sinh(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"libdevice.sinh(({self._print(expr.args[0])}).to(tl.float32))" + + def _print_OpaqueUnaryFn_asin(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"libdevice.asin(({self._print(expr.args[0])}).to(tl.float32))" + + def _print_OpaqueUnaryFn_tan(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"libdevice.tan(({self._print(expr.args[0])}).to(tl.float32))" + + def _print_OpaqueUnaryFn_tanh(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"libdevice.tanh(({self._print(expr.args[0])}).to(tl.float32))" + + def _print_OpaqueUnaryFn_atan(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"libdevice.atan(({self._print(expr.args[0])}).to(tl.float32))" + + def _print_OpaqueUnaryFn_log2(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return f"libdevice.log2(({self._print(expr.args[0])}).to(tl.float32))" + + def _print_RoundToInt(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 1 + return ( + f"libdevice.llrint({self._print(expr.args[0])}).to({V.kernel.index_dtype})" + ) + + def _print_RoundDecimal(self, expr: sympy.Expr) -> str: + assert len(expr.args) == 2 + number, ndigits = expr.args + if number.is_integer: + # ndigits < 0 should have been filtered by the sympy function + assert ndigits < 0 + raise ValueError( + f"For integer inputs, only non-negative ndigits are currently supported, but got {ndigits}." + ) + + number_str = self.parenthesize(number, PRECEDENCE["Mul"]) + return f"libdevice.nearbyint(1e{ndigits} * {number_str}) * 1e{-ndigits}" + + +texpr = TritonPrinter().doprint + + +def triton_compute_type(dtype: torch.dtype) -> str: + """Convert torch.dtype to triton type and upcast [b]float16 to float32""" + return triton_type(upcast_compute_type(dtype)) + + +def triton_store_type(dtype: torch.dtype) -> str: + """Convert torch.dtype to triton type, with fix for storing tl.bool""" + if dtype == torch.bool: + dtype = torch.int8 + return triton_type(dtype) + + +def upcast_acc_dtype(dtype: torch.dtype) -> torch.dtype: + """Implicit upcasts used for Triton reduction types""" + if is_integer_dtype(dtype) and dtype.is_signed and dtype.itemsize <= 4: + return torch.int32 + return upcast_compute_type(dtype) + + +def triton_acc_type(dtype: torch.dtype) -> str: + """Convert torch.dtype to triton type, with reduction upcasts""" + return triton_compute_type(upcast_acc_dtype(dtype)) + + +def low_precision_fp(dtype: torch.dtype) -> bool: + return dtype.itemsize <= 2 and dtype.is_floating_point + + +def low_precision_fp_var(var: Union[CSEVariable, Any]) -> bool: + if not isinstance(var, CSEVariable): + return False + + dtype = var.dtype + return low_precision_fp(dtype) if isinstance(dtype, torch.dtype) else False + + +class TritonCSEVariable(CSEVariable): + def __init__( + self, + name: str, + bounds: ValueRanges[Any], + dtype: torch.dtype, + shape: BlockShapeType = None, + ) -> None: + super().__init__(name, bounds, dtype, shape=shape) + # We'll use this to track which masks the variable needs when used for indirect indexing + self.mask_vars: OrderedSet[str] = OrderedSet() + assert dtype is not None, "TritonCSEVariable must have dtype" + assert shape is not None, "TritonCSEVariable must have shape" + + def update_on_args(self, name, args, kwargs): + for arg in args: + if isinstance(arg, TritonCSEVariable): + self.mask_vars.update(arg.mask_vars) + elif isinstance(arg, sympy.Symbol): + # most of the time index vars don't need masks associated with them + # however, when index vars are used to compute indices for indirect reads + # those reads should subsequently be masked, + for symt in TritonSymbols.block_types: + if symbol_is_type(arg, symt): + self.mask_vars.update([f"{prefix_str[symt]}mask"]) + break + + +def get_dtype_handler() -> DtypePropagationOpsHandler: + from torch._inductor.dtype_propagation import DtypePropagationOpsHandler + + return DtypePropagationOpsHandler() + + +def maybe_upcast_float32(convert_output: bool = True) -> Callable[[_T], _T]: + """ + Codegen helper to upcast arguments to float32, depending on the config and dtype. + This decorates tl.math/libdevice codegen functions. + """ + + def needs_upcast(var) -> bool: + return ( + not config.triton.codegen_upcast_to_fp32 + and isinstance(var, CSEVariable) + and var.dtype in (torch.float16, torch.bfloat16) + ) + + def maybe_upcast_arg(var) -> str: + upcast_string = ".to(tl.float32)" if needs_upcast(var) else "" + return f"{var}{upcast_string}" + + def decorator(func: Callable[..., Any]) -> Callable[..., Any]: + # Record that this function only supports float32 and float64. + OpDtypeSupport.register_upcast(func, convert_output) + + def wrapped(*args, **kwargs) -> str: + # Optionally upcast args to float32. + upcast_args = [maybe_upcast_arg(arg) for arg in args] + upcast_kwargs = {key: maybe_upcast_arg(val) for key, val in kwargs.items()} + + # Call the decorated function, optionally downcasting the result. + result = func(*upcast_args, **upcast_kwargs) + any_needs_upcast = convert_output and any( + needs_upcast(var) for var in itertools.chain(args, kwargs.values()) + ) + result_dtype = ( + None + if not any_needs_upcast + else getattr(get_dtype_handler(), func.__name__)(*args, **kwargs) + ) + needs_downcast = result_dtype not in (torch.float32, None) + downcast_string = ( + f".to({triton_type(result_dtype)})" + if needs_downcast and result_dtype is not None + else "" + ) + return f"{result}{downcast_string}" + + return wrapped + + return decorator # type: ignore[return-value] + + +class TritonOverrides(OpOverrides): + """Map element-wise ops to Triton e.g., ops.to_dtype(x,...) -> x.to(...)""" + + _LOG_2_E = math.log2(math.e) + + @staticmethod + def to_dtype( + x, + dtype: torch.dtype, + src_dtype: Optional[torch.dtype] = None, + use_compute_types=True, + ): + def _get_min_elements_per_thread( + src_dtype: torch.dtype, dst_dtype: torch.dtype + ) -> int: + if src_dtype == dst_dtype: + # No data type conversion is needed. No requirements on min_elem_per_thread. + return 0 + + # fp8 data type conversions has min_elem_per_thread requirements. + # Refer to Triton implementations here: + # https://github.com/triton-lang/triton/blob/10f59d8ce04052521c1bc0cb3a3f8b98918fc7e3/lib/Conversion/TritonGPUToLLVM/ElementwiseOpToLLVM.cpp#L10. + fp8_dtypes = ( + torch.float8_e4m3fn, + torch.float8_e5m2, + ) + # Triton doesn't support type conversions between fp8_e4m3 and fp8_e5m2. + assert not ( + src_dtype in fp8_dtypes + and dst_dtype in fp8_dtypes + and src_dtype != dst_dtype + ), "Conversions between float8_e5m2 and float8_e4m3fn is not supported!" + if src_dtype == torch.float8_e5m2 or dst_dtype == torch.float8_e5m2: + return 4 + if src_dtype == torch.float8_e4m3fn or dst_dtype == torch.float8_e4m3fn: + return 2 + # No requirements on min_elem_per_thread. + return 0 + + if src_dtype is not None: + # Both dtype and src_dtype are set. This is used by torch to(dtype=dtype). + # It takes the maximum min_elem_per_thread if there are multiple fp8 conversions + # in the same kernel. + V.kernel.min_elem_per_thread = max( + _get_min_elements_per_thread(src_dtype, dtype), + V.kernel.min_elem_per_thread, + ) + + if dtype == torch.bool: + return f"({x} != 0)" + elif dtype == torch.uint8 and ( + src_dtype is not None and src_dtype.is_floating_point or src_dtype is None + ): + # to work around llvm uint conversion semantics that produces 0's for negative + # values when converting from floating types. + # optimization - if source type is known and it's not a floating type, then + # do not apply conversion to the intermediate type. + return f"{x}.to(tl.int16).to(tl.uint8)" + + if use_compute_types: + out_dtype = triton_compute_type(dtype) + else: + out_dtype = triton_store_type(dtype) + + return f"{x}.to({out_dtype})" + + @staticmethod + def to_dtype_bitcast(x, dtype: torch.dtype, src_dtype: torch.dtype): + assert src_dtype.itemsize == dtype.itemsize + # We may promote float16 or bfloat16 to float32 and cause the + # bitwidth of dtype to be different from the input tensor (i.e. float32). + # In such as case, we will have to convert the input tensor to + # its src_type, perform bitcast, and then convert the bit-casted + # tensor back to float to ensure we use values with the right precision. + if x.dtype != src_dtype: + x = f"{x}.to({triton_type(src_dtype)})" + + out = f"{x}.to({triton_type(dtype)}, bitcast=True)" + if upcast_compute_type(dtype) != dtype: + out = f"{out}.to({triton_type(upcast_compute_type(dtype))})" + + return out + + @staticmethod + def _shaped_constant(value, dtype, shape): + type_ = torch._prims_common.dtype_to_type(dtype) + triton_val = constant_repr(type_(value)) + triton_type = triton_compute_type(dtype) + + if triton_type == "tl.float32": + # Float constants are always f32 in triton + return triton_val + + # NOTE: We use a tensor here in order to get the expected type. + # Otherwise, e.g. float64 constants would be truncated to float32. + if value < 0 and not dtype.is_signed: + triton_signed_type = f"tl.{triton_type[4:]}" + return f"tl.full({shape}, {triton_val}, {triton_signed_type}).to({triton_type})" + else: + return f"tl.full({shape}, {triton_val}, {triton_type})" + + @classmethod + def constant(cls, value, dtype): + return cls._shaped_constant(value, dtype, shape=[]) + + @staticmethod + @maybe_upcast_float32() + def abs(x): + return f"tl_math.abs({x})" + + # TODO - register these ops as having divergent dtype + # output if doing graph pass to remove consecutive casts + + @staticmethod + def truediv(x, y): + x_dtype = getattr(x, "dtype", None) + y_dtype = getattr(y, "dtype", None) + + if ( + x_dtype == torch.float32 + and y_dtype == torch.float32 + and config.emulate_divison_rounding + ): + # x / y in Triton is lowered to div.full which is approx + # we want div_rn to adhere with eager + out = f"triton.language.div_rn({x}, {y})" + else: + out = f"({x} / {y})" + + # Workaround here since the functionality of div_rn has not ready on XPU. + # TODO: remove this workaround after https://github.com/intel/intel-xpu-backend-for-triton/issues/5306 + # resolved. + if torch.xpu.is_available(): + out = f"({x} / {y})" + + if low_precision_fp_var(x) or low_precision_fp_var(y): + out_dtype = get_dtype_handler().truediv(x, y) + if out_dtype in (torch.float16, torch.float32): + out = f"{out}.to({triton_type(out_dtype)})" + + return out + + @staticmethod + def mod(x, y): + out = f"({x} % {y})" + if low_precision_fp_var(x) or low_precision_fp_var(y): + out_dtype = get_dtype_handler().mod(x, y) + if out_dtype in (torch.float16, torch.float32): + out = f"{out}.to({triton_type(out_dtype)})" + return out + + @staticmethod + @maybe_upcast_float32() + def exp(x): + """ + When use_fast_math, use the ftz (flushing to zero) variant + of exponent computation. + + Check https://github.com/triton-lang/triton/issues/5735 for + more details. + """ + if config.use_fast_math: + return f"tl_math.exp({x})" + else: + return f"libdevice.exp({x})" + + @staticmethod + @maybe_upcast_float32() + def exp2(x): + return f"libdevice.exp2({x})" + + @staticmethod + @maybe_upcast_float32() + def expm1(x): + return f"libdevice.expm1({x})" + + @staticmethod + @maybe_upcast_float32() + def sqrt(x): + # work around for https://github.com/pytorch/pytorch/issues/165738 + if torch.xpu.is_available(): + return f"libdevice.sqrt({x})" + return f"tl.sqrt_rn({x})" + + @staticmethod + def relu(x): + bug = config.triton.inject_relu_bug_TESTING_ONLY + if bug == "compile_error": + return "compile error!" + elif bug == "runtime_error": + # NB: this only triggers runtime error as long as input + # is not all zero + return f'triton_helpers.device_assert_then({x} == 0, "injected assert fail", {x})' + elif bug == "accuracy": + return f"{x} + 1" + elif bug is None: + return ops.maximum(ops.constant(0, torch.int32), x) + else: + raise AssertionError( + f"unrecognized config triton.inject_relu_bug_TESTING_ONLY = {bug!r}" + ) + + @staticmethod + def minimum(a, b): + return f"triton_helpers.minimum({a}, {b})" + + @staticmethod + def maximum(a, b): + return f"triton_helpers.maximum({a}, {b})" + + @staticmethod + def where(a, b, c): + return f"tl.where({a}, {b}, {c})" + + @staticmethod + def dot(a, b): + """ + Triton code generation for lowering ops.dot to tl.dot. + + The logic is as follows: + + 1. Downcasting for performance + If the data was previously upcasted to fp32, we downcast back to the + original dtype (e.g., fp16 or bf16) for better performance. While + surrounding operations may run in fp32, matmul itself is executed at the + original precision to optimize throughput. + + 2. Handling non-constant reduction masks + If the reduction mask is not constant and there was any operation between + tl.load and tl.dot, we zero out regions outside the mask using + tl.where(r0_mask, val, 0). + This ensures that values outside the mask do not contribute to the dot + product, preventing incorrect results. + + 3. Shape alignment for tl.dot + We massage shapes to match the tl.dot requirement of (Y, R) x (R, X). + Current codegen eagerly broadcasts tl.arange to create unique axes. We + reshape, transpose, or broadcast to align with the (Y, R) x (R, X) shape. + We avoid using 3D dot ((Z, Y, R) x (Z, R, X)) because 3D tl.dot has + poor performance. During batched matmul (bmm), we keep ZBLOCK=1 and call + the 2D dot kernel instead. + """ + assert V.kernel.is_native_matmul + orig_a, orig_b = a, b + + def is_where_needed(var): + # Skip if the variable doesn't have a reduction mask + if not any(map(prefix_is_reduction, var.mask_vars)): + return False + + reduction_range = V.kernel.range_trees[-1] + assert reduction_range.is_reduction + + # Skip if reduction mask was already constant + if V.kernel._has_constant_mask(reduction_range): + return False + + # Skip if the variable is already zeroed outside the mask + # (e.g., from tl.load(..., other=0.0)) + # TODO : track the value of outside of mask region with cse + for k, v in V.kernel.cse._cache.items(): + if v == var and "tl.load" in k and "other=0.0" in k: + return False + + return True + + def where_cond(var): + default = ir.Reduction.default_value("dot", var.dtype) + reduction_mask = [ + f"{tree.prefix}mask" + for tree in V.kernel.range_trees + if tree.is_reduction + ] + + assert len(reduction_mask) == 1, "don't tile reduction when native matmul" + + where_var = TritonKernelOverrides.where(reduction_mask[0], var, default) + return V.kernel.cse.generate( + V.kernel.compute, where_var, dtype=var.dtype, shape=var.shape + ) + + # When computing expressions like ((A+1) @ (B+2)), + # native codegen will do + # + # a = tl.load(..., r0_mask, other=0.0) + # b = tl.load(..., r0_mask, other=0.0) + # tmp0 = a+1 + # tmp1 = b+2 + # tmp2 = tl.dot(tmp0, tmp1) + # + # This produces incorrect results because outside of r0_mask is not zero. + # So before calling tl.dot, apply tl.where to zero out values properly. + # TODO: Optimize - We don't need both operands to be zeroed except NaN * 0 + if is_where_needed(orig_a): + a = where_cond(a) + if is_where_needed(orig_b): + b = where_cond(b) + + def reshape_transpose_broadcast_for_dot( + value, + initial_shape: Sequence[sympy.Expr], + final_shape: Sequence[sympy.Expr], + ) -> str: + """ + Generate a reshape, transpose, and broadcast for the tl.dot. + tl.dot requires specific shape requirement : (Y,R) x (R,X) + but the current triton codegen eagerly broadcast the tl.arange so + it needs to be reshaped to meet the requirement. + + This is done by three steps. + 1. remove the empty dimension (dim with size 1) and make it 2d with tl.reshape + 2. permute the dimension if needed (e.g., (X,R) -> (R,X)) with tl.trans + 3. broadcast if needed with broadcast_to. + - This shows up when matmul operand is broadcasted with torch.expand/repeat. + - e.g., torch.rand((16,)).expand(16,16) @ B + + e.g., (Y,1,R), (Y,R) -> tl.reshape(var, (Y,R)) + e.g., (1,X,R), (R,X) -> tl.trans(tl.reshape(var, (X,R))) + e.g., (1,X,1), (R,X) -> tl.broadcast_to(tl.trans(tl.reshape(var, (X,1))), (R,X)) + + TODO : eventually we want to remove this function when lazy broadcasting arrives + """ + + # Triton 3d dot is slower than 2d dot, so we want to keep block shape in 2d + # by fixing ZBLOCK=1 in the autotune config + if ZBLOCK in initial_shape: + initial_shape = ["1" if dim == ZBLOCK else dim for dim in initial_shape] + + if final_shape == [YBLOCK, RBLOCK]: + assert XBLOCK not in initial_shape, ( + "left tl.dot operand cannot depend on x" + ) + + shape_2d = ["1", "1"] + if YBLOCK in initial_shape: + shape_2d[0] = YBLOCK + if RBLOCK in initial_shape: + shape_2d[1] = RBLOCK + + # reshape it into 2d + value = triton_reshape(value, initial_shape, shape_2d) + + # broadcast if needed + broadcast_needed = shape_2d != [YBLOCK, RBLOCK] + if broadcast_needed: + value = f"tl.broadcast_to({value}, ({YBLOCK}, {RBLOCK}))" + + elif final_shape == [RBLOCK, XBLOCK]: + assert YBLOCK not in initial_shape, ( + "right tl.dot operand cannot depend on y" + ) + + shape_2d = ["1", "1"] + if XBLOCK in initial_shape: + shape_2d[0] = XBLOCK + if RBLOCK in initial_shape: + shape_2d[1] = RBLOCK + + # reshape it into 2d (X,R) + value = triton_reshape(value, initial_shape, shape_2d) + + # transpose to (R,X) + value = f"tl.trans({value})" + + # broadcast if needed + broadcast_needed = shape_2d != [XBLOCK, RBLOCK] + if broadcast_needed: + value = f"tl.broadcast_to({value}, ({RBLOCK}, {XBLOCK}))" + else: + raise NotImplementedError + + return value + + assert len(V.kernel.dense_size_list()) >= 3, "tl.dot can only do mm and bmm" + + XBLOCK = str(TritonSymbols.block_sizes[SymT.XBLOCK]) + YBLOCK = str(TritonSymbols.block_sizes[SymT.YBLOCK]) + ZBLOCK = str(TritonSymbols.block_sizes[SymT.ZBLOCK]) + RBLOCK = str(TritonSymbols.block_sizes[SymT.R0_INDEX]) + + a = V.kernel.cse.generate( + V.kernel.compute, + reshape_transpose_broadcast_for_dot(a, list(a.shape), [YBLOCK, RBLOCK]), + dtype=a.dtype, + shape=(YBLOCK, RBLOCK), + ) + + b = V.kernel.cse.generate( + V.kernel.compute, + reshape_transpose_broadcast_for_dot(b, list(b.shape), [RBLOCK, XBLOCK]), + dtype=b.dtype, + shape=(RBLOCK, XBLOCK), + ) + + if torch.backends.cuda.matmul.fp32_precision == "tf32": + input_precision = "tf32" + else: + input_precision = "ieee" + + return f'tl.dot({a}, {b}, input_precision="{input_precision}")' + + @staticmethod + def inline_asm_elementwise( + *inputs, asm, constraints=None, dtype=torch.float32, is_pure=True, pack=1 + ): + triton_type = triton_compute_type(dtype) + input_refs = ", ".join([str(i) for i in inputs]) + if constraints is None: + constraints = ", ".join(["=r"] + ["r" for _ in inputs]) + return f"tl.inline_asm_elementwise('{asm}', '{constraints}', [{input_refs}], dtype={triton_type}, is_pure={is_pure}, pack={pack})" # noqa: B950 + + @staticmethod + @maybe_upcast_float32() + def cos(x): + return f"tl_math.cos({x})" + + @staticmethod + @maybe_upcast_float32() + def sin(x): + return f"tl_math.sin({x})" + + @classmethod + def index_expr(cls, expr, dtype): + raise NotImplementedError("ops.index_expr not implemented outside a kernel") + + @staticmethod + def masked(mask, body, other): + raise NotImplementedError("ops.masked not implemented outside a kernel") + + @staticmethod + @maybe_upcast_float32() + def lgamma(x): + return f"libdevice.lgamma({x})" + + @staticmethod + @maybe_upcast_float32() + def erf(x): + return f"libdevice.erf({x})" + + @staticmethod + @maybe_upcast_float32() + def cosh(x): + return f"libdevice.cosh({x})" + + @staticmethod + @maybe_upcast_float32() + def sinh(x): + return f"libdevice.sinh({x})" + + @staticmethod + @maybe_upcast_float32() + def acos(x): + return f"libdevice.acos({x})" + + @staticmethod + @maybe_upcast_float32() + def acosh(x): + return f"libdevice.acosh({x})" + + @staticmethod + @maybe_upcast_float32() + def asin(x): + return f"libdevice.asin({x})" + + @staticmethod + @maybe_upcast_float32() + def asinh(x): + return f"libdevice.asinh({x})" + + @staticmethod + @maybe_upcast_float32() + def atan2(x, y): + return f"libdevice.atan2({x}, {y})" + + @staticmethod + @maybe_upcast_float32() + def atan(x): + return f"libdevice.atan({x})" + + @staticmethod + @maybe_upcast_float32() + def atanh(x): + return f"libdevice.atanh({x})" + + @staticmethod + @maybe_upcast_float32() + def copysign(x, y): + return f"libdevice.copysign({x}, {y})" + + @staticmethod + @maybe_upcast_float32() + def erfc(x): + return f"libdevice.erfc({x})" + + @staticmethod + @maybe_upcast_float32() + def erfinv(x): + return f"libdevice.erfinv({x})" + + @staticmethod + @maybe_upcast_float32() + def hypot(x, y): + return f"libdevice.hypot({x}, {y})" + + @staticmethod + @maybe_upcast_float32() + def log10(x): + return f"libdevice.log10({x})" + + @staticmethod + @maybe_upcast_float32() + def log2(x): + return f"libdevice.log2({x})" + + @staticmethod + @maybe_upcast_float32() + def nextafter(x, y): + return f"libdevice.nextafter({x}, {y})" + + @staticmethod + def logical_and(a, b): + return f"{a} & {b}" + + @staticmethod + def logical_not(a): + return f"{a} == 0" + + @staticmethod + def logical_or(a, b): + return f"{a} | {b}" + + @staticmethod + def logical_xor(a, b): + return f"({a} ^ {b})" + + @staticmethod + def bitwise_and(a, b): + return f"{a} & {b}" + + @staticmethod + def bitwise_not(a): + return f"~{a}" + + @staticmethod + def bitwise_or(a, b): + return f"{a} | {b}" + + @staticmethod + def bitwise_xor(a, b): + return f"{a} ^ {b}" + + @staticmethod + def bitwise_left_shift(a, b): + return f"{a} << {b}" + + @staticmethod + def bitwise_right_shift(a, b): + return f"{a} >> {b}" + + @staticmethod + def rand(seed, offset): + offset = f"({offset}).to(tl.uint32)" + return f"tl.rand({seed}, {offset})" + + @staticmethod + def randn(seed, offset): + offset = f"({offset}).to(tl.uint32)" + return f"tl.randn({seed}, {offset})" + + @staticmethod + def randint64(seed, offset, low, high): + offset = f"({offset}).to(tl.uint32)" + return f"triton_helpers.randint64({seed}, {offset}, {low}, {high})" + + @staticmethod + def load_seed(name, offset): + raise NotImplementedError("ops.load_seed not implemented outside a kernel") + + @staticmethod + @maybe_upcast_float32() + def rsqrt(x): + return f"libdevice.rsqrt({x})" + + @staticmethod + @maybe_upcast_float32() + def log1p(x): + return f"libdevice.log1p({x})" + + @staticmethod + @maybe_upcast_float32() + def tan(x): + return f"libdevice.tan({x})" + + @staticmethod + @maybe_upcast_float32() + def tanh(x): + cse_var = V.kernel.cse.varname_map.get(x) + if cse_var and hasattr(cse_var, "dtype"): + dtype = cse_var.dtype + else: + dtype = None + if ( + config.use_fast_math + and torch.version.hip + and get_triton_version() > (3, 5) + and dtype != torch.float64 + and dtype is not None + ): + # Requires upstream Triton 3.6+ for latest fast_tanhf support + # https://github.com/triton-lang/triton/pull/8551 + return f"libdevice.fast_tanhf({x})" + else: + return f"libdevice.tanh({x})" + + @staticmethod + @maybe_upcast_float32() + def sigmoid(x): + return f"tl.sigmoid({x})" + + @staticmethod + def signbit(x): + # XX: This is wrong for the value -0.0 in floating point + return ( + f"(libdevice.signbit({x}) != 0) if ({x}).dtype is tl.float32 else {x} < 0" + ) + + @staticmethod + @maybe_upcast_float32() + def fmod(a, b): + return f"libdevice.fmod({a}, {b})" + + @staticmethod + @maybe_upcast_float32() + def pow(a, b): + return f"libdevice.pow({a}, {b})" + + @staticmethod + @maybe_upcast_float32() + def log(x): + return f"tl_math.log({x})" + + @staticmethod + @maybe_upcast_float32(convert_output=False) + def isinf(x): + return f"libdevice.isinf({x}).to(tl.int1)" + + @staticmethod + @maybe_upcast_float32(convert_output=False) + def isnan(x): + return f"libdevice.isnan({x}).to(tl.int1)" + + @staticmethod + @maybe_upcast_float32() + def round(x): + return f"libdevice.nearbyint({x})" + + @staticmethod + @maybe_upcast_float32() + def floor(x): + return f"libdevice.floor({x})" + + @staticmethod + def floordiv(a, b): + # See the comment in lowering.div_mode. a and b are integer type. + # Similar to div_floor_kernel_cuda in pytorch core. + # Notice that // in triton behaves as truncdiv instead of floordiv + quot = f"{a} // {b}" + rem = f"{a} % {b}" + return f"tl.where(({a} < 0) != ({b} < 0), tl.where({rem} != 0, {quot} - 1, {quot}), {quot})" + + @staticmethod + def sign(x): + z = ops.constant(0, torch.int32) + left = ops.to_dtype((ops.lt(z, x)), torch.int8) + right = ops.to_dtype((ops.lt(x, z)), torch.int8) + sub = ops.sub(left, right) + return f"{sub}.to({x}.dtype)" + + @staticmethod + @maybe_upcast_float32() + def trunc(x): + return f"libdevice.trunc({x})" + + @staticmethod + def truncdiv(a, b): + # See the comment in lowering.div_mode. a and b are integer type. + # Notice that // in triton behaves as truncdiv instead of floordiv + return f"{a} // {b}" + + @staticmethod + @maybe_upcast_float32() + def ceil(x): + return f"libdevice.ceil({x})" + + +TritonOverrides._initialize_pointwise_overrides("triton") + + +class TritonKernelOverrides(TritonOverrides): + """Map element-wise ops to Triton within a TritonKernel + + Unlike TritonOverrides, these assume the code is going to be inserted into + the body of the main triton kernel and so it may use indexing and mask + variables which are assumed to already be defined in the current scope. + """ + + def __init__(self, *args, **kwargs): + super().__init__(*args, **kwargs) + + # happens in __init__ unlike _initialize_pointwise_overrides + # because the libdevice registrations are populated during lowerings + self._setup_libdevice_routing() + + @classmethod + @functools.cache + def _setup_libdevice_routing(cls): + """Set up routing to libdevice implementations for fp64 inputs.""" + + from torch._inductor.codegen.common import OpDecompositions + + for fn_name in torch._inductor.utils.op_requires_libdevice_fp64: + assert hasattr(cls, fn_name) + original_impl = getattr(cls, fn_name) + + def decomposition_router(x, _original_impl, _fn_name): + if x.dtype != torch.float64: + return _original_impl(x) + else: + return getattr(OpDecompositions, _fn_name)(x).value + + if fn_name == "sigmoid": + assert hasattr(OpDecompositions, "sigmoid") + fn = functools.partial( + decomposition_router, _original_impl=original_impl, _fn_name=fn_name + ) + fn.__name__ = fn_name # type: ignore[attr-defined] + setattr(cls, fn_name, staticmethod(fn)) + continue + + def dtype_router(x, _original_impl, _fn_name): + if x.dtype == torch.float64: + return f"libdevice.{_fn_name}({x})" + else: + return _original_impl(x) + + fn = functools.partial( + dtype_router, _original_impl=original_impl, _fn_name=fn_name + ) + fn.__name__ = fn_name # type: ignore[attr-defined] + setattr(cls, fn_name, staticmethod(fn)) + + @classmethod + def constant(cls, value, dtype): + # NOTE: Cannot use shape=[] as it's not supported by triton-rocm + # We could use shape=[1] instead but starting with the correct + # ndim avoids extra `tt.expand_dim` ops appearing in the triton IR. + ndim = V.kernel.triton_tensor_ndim() + shape = [1] * ndim + return cls._shaped_constant(value, dtype, shape=shape) + + @classmethod + def index_expr(cls, expr, dtype): + indexing = V.kernel.indexing( + expr, block_ptr=False, tma_compatibility_checker=None + ) + assert isinstance(indexing, IndexingOptions) + + shape: BlockShapeType + if indexing.expand_shape: + shape = indexing.expand_shape + else: + shape = TritonSymbols.get_block_shape(indexing.index) + + # Our sympy expr printing casts to the current kernel index dtype. + # we only respect non int32-int64 dtypes and otherwise use current kernel indexing dtype + index_dtype = V.kernel.get_index_dtype_as_torch_dtype() + dtype = dtype if dtype not in (torch.int32, torch.int64) else index_dtype + + # after we emit this var we cast it to the correct dtype + orig = config.test_configs.runtime_triton_dtype_assert + try: + config.test_configs.runtime_triton_dtype_assert = False + var = V.kernel.cse.generate( + V.kernel.compute, + indexing.index_str, + bounds=get_bounds_index_expr(expr), + dtype=dtype, + shape=shape, + ) + finally: + config.test_configs.runtime_triton_dtype_assert = orig + + if dtype not in (torch.int32, torch.int64): + var = V.kernel.cse.generate( + V.kernel.compute, + cls.to_dtype(var, dtype), + dtype=upcast_compute_type(dtype), + shape=var.shape, + ) + else: + # TODO: we are not always consistent in enforcing that the output of the index expr printing + # results in the indexing dtype. So if we detect that we have an input which might type promote + # to a dtype other than indexing dtype, add a cast. + # Trying to avoid + dtype = index_dtype + for index_var in expr.free_symbols: + if symbol_is_type(index_var, SymT.TMP): + dtype = torch.promote_types( + dtype, V.kernel.cse.varname_map[index_var.name].dtype + ) + + if dtype != index_dtype: + var = V.kernel.cse.generate( + V.kernel.compute, + cls.to_dtype(var, index_dtype), + dtype=index_dtype, + shape=var.shape, + ) + + var.mask_vars = indexing.mask_vars + return var + + @staticmethod + def masked(mask, body, other): + if mask is not None and torch.version.hip is not None: + mask = V.kernel.cse.generate( + V.kernel.compute, + f"{mask}.to(tl.int1)", + dtype=torch.bool, + shape=mask.shape, + ) + + nodes = body.graph.find_nodes(op="output") + assert nodes, "graph for body does not contain an output" + + need_where = False + # If we have a tl.load with a masking operator and no other value + # we can add the mask here and the other value to the tl.load + # operator to save the branching cost. + for node in nodes: + for arg in node.args: + if arg.target != "load" or should_unwrap_unspec_arg(arg.args[1]): + need_where = True + break + + value = None if need_where else other + + with V.kernel.mask_loads(mask, value=value) as new_mask: + result = body() + + if need_where: + # Remove once CSEVariables track the dtype + if result.bounds.is_bool: + other = bool(other) + # Take dtype from result to prevent accidental promotion + other = V.kernel.cse.generate( + V.kernel.compute, + f"tl.full({result}.shape, {constant_repr(other)}, {result}.dtype)", + bounds=ValueRanges.wrap(other), + dtype=result.dtype, + shape=result.shape, + ) + ret = ops.where(new_mask, result, other) + else: + ret = result + + ret.mask_vars.discard(new_mask) + return ret + + @staticmethod + def load_seed(name, offset): + var = V.kernel.args.input(name) + return ( + f"tl.load({var} + {V.kernel.args.seed_offset('load_seed_offset', offset)})" + ) + + @staticmethod + def frexp(x): + cache_key = f"frexp({x})" + if cse_val := V.kernel.cse.try_get(cache_key): + return cse_val + + mantissa = V.kernel.cse.newvar(dtype=x.dtype, shape=x.shape) + exponent = V.kernel.cse.newvar(dtype=torch.int32, shape=x.shape) + V.kernel.compute.writeline( + f"{mantissa}, {exponent} = triton_helpers.frexp({x})" + ) + V.kernel.cse.put(cache_key, (mantissa, exponent)) + return (mantissa, exponent) + + @staticmethod + def partial_accumulate( + name: str, + reduction_type: str, + value: CSEVariable, + extra_meta: dict[str, Any], + ) -> None: + raise NotImplementedError + + +class HelperFunctions: + """An ordered set of helper functions.""" + + _templates_seen: dict[str, str] # Template code to function name + finalized_helpers: list[str] + + def __init__(self) -> None: + self._templates_seen = {} + self.finalized_helpers = [] + + def add(self, template_code: str, *, base_name="_triton_helper_fn") -> str: + """This accepts a function definition with the function name + left as a format specifier e.g. + + @triton.jit + def {name}(arg0, arg1): + return arg0 + arg1 + + We add the templated code to the function set and return the name + assigned to that function. + + """ + existing_name = self._templates_seen.get(template_code) + if existing_name is not None: + # Don't duplicate existing helpers + return existing_name + + name = f"{base_name}{len(self.finalized_helpers)}" + self._templates_seen[template_code] = name + self.finalized_helpers.append(template_code.format(name=name)) + return name + + def __iter__(self): + return iter(self.finalized_helpers) + + def __getitem__(self, idx): + return self.finalized_helpers[idx] + + +@dataclasses.dataclass +class BlockParameters: + """ + Class representing ND block dimensions, for block pointer analysis. + """ + + shape: list[sympy.Expr] = dataclasses.field(default_factory=list) + block_shape: list[sympy.Expr] = dataclasses.field(default_factory=list) + strides: list[sympy.Expr] = dataclasses.field(default_factory=list) + offsets: list[sympy.Expr] = dataclasses.field(default_factory=list) + + @dataclasses.dataclass + class StrideSorter: + original_strides: list[int] + sort_idx: list[int] + revert_sort_idx: list[int] = dataclasses.field(init=False) + + def __post_init__(self): + assert len(self.original_strides) > 0 + assert len(self.sort_idx) == len(self.original_strides) + + identity_sort_idx = list(range(len(self.original_strides))) + self._is_identity = self.sort_idx == identity_sort_idx + + # Set revert_sort_idx + sorted_dims_by_strides_map = {k: i for i, k in enumerate(self.sort_idx)} + self.revert_sort_idx = [ + sorted_dims_by_strides_map[i] + for i in range(len(sorted_dims_by_strides_map)) + ] + + @property + def is_identity(self): + return self._is_identity + + @classmethod + @abstractmethod + def create( + cls, original_strides: list[Union[int, sympy.Expr]], shape_env: ShapeEnv + ) -> BlockParameters.StrideSorter: + """Create a `StrideSorter` that can be used to sort block parameters.""" + + def sort(self, attr): + if not self.is_identity: + return [attr[i] for i in self.sort_idx] + return attr + + def revert(self, attr): + if not self.is_identity: + return [attr[i] for i in self.sort_idx] + return attr + + @dataclasses.dataclass + class IdentityStrideSorter(StrideSorter): + def __post_init__(self): + super().__post_init__() + + @classmethod + def create( + cls, original_strides: list[Union[int, sympy.Expr]], shape_env: ShapeEnv + ) -> BlockParameters.StrideSorter: + return cls( + original_strides=original_strides, + sort_idx=list(range(len(original_strides))), + ) + + @dataclasses.dataclass + class TensorDecriptorStrideSorter(StrideSorter): + """ + Sorts BlockParameters dimensions with strides in descending order. + """ + + def __post_init__(self): + super().__post_init__() + + @classmethod + def create( + cls, original_strides: list[Union[int, sympy.Expr]], shape_env: ShapeEnv + ) -> BlockParameters.StrideSorter: + """ + If the strides are not all known constants or if the strides are already + sorted in descending order, return identity sort. + + For example if block_shape @ strides is [ZBLOCK, XBLOCK, YBLOCK] @ [8, 1, 16] + The indices to sort the strides in descending order will be [2, 0, 1]. + The indices to revert back to the original order will be [1, 2, 0]. + """ + identity_sort = list(range(len(original_strides))) + try: + # TODO: even if the strides are not in descending order the strides + # may be tensor descriptor compliant + # i.e. innermost stride == 1 and outer strides 16 byte aligned + # We should benchmark the effect of applying a transpose to these + # cases vs leaving them unsorted. + sort_idx = utils.argsort_sym(shape_env, original_strides, reverse=True) + except AssertionError: + # Symbolic shapes, failed to evaluate comparison expression + sort_idx = identity_sort + + return cls( + original_strides=original_strides, + sort_idx=sort_idx, + ) + + def __add__(self, other: BlockParameters) -> BlockParameters: + """ + Concatenates block parameters. + """ + cls = type(self) + a, b = tuple(dataclasses.asdict(x) for x in (self, other)) + return cls(**{key: a[key] + b[key] for key in a}) + + def maybe_sort_with_stride_order( + self, stride_sorter_cls: type[StrideSorter], shape_env: ShapeEnv + ) -> tuple[BlockParameters, BlockParameters.StrideSorter]: + """ + Sort `BlockParameter` with stride_sorter_cls. Returns block parameters + as well as a `StrideSorter` which contains information on how the sort + can be reverted. + """ + stride_sorter = stride_sorter_cls.create(self.strides, shape_env=shape_env) + params = BlockParameters( + **{ + key: stride_sorter.sort(val) + for key, val in dataclasses.asdict(self).items() + } + ) + return params, stride_sorter + + def remove_dims(self, removable_dims: list[bool]) -> BlockParameters: + """ + Remove dimensions where removable_dims is True. + """ + + def filter_dims(it): + return [ + item + for item, is_removable in zip(it, removable_dims) + if not is_removable + ] + + return BlockParameters( + **{key: filter_dims(val) for key, val in dataclasses.asdict(self).items()}, + ) + + +class CooperativeReductionWorkspaceCache: + """ + The scratch space used for cooperative reductions can be reused + after two reduction loops. This keeps track of what can be reused. + """ + + def __init__(self, args): + self.args = args + self.current_loop = [] + self.prior_loop = [] + self.ready_for_reuse = collections.defaultdict(collections.deque) + self.loop_count = 0 + self.store_count = 0 + + def allocate(self, nbytes: sympy.Expr): + cached = self.ready_for_reuse.get(nbytes) + if cached: + return cached.popleft() + ws_name, _, ws_offset = self.args.workspace(nbytes, False) + self.current_loop.append((nbytes, ws_name, ws_offset)) + return (ws_name, ws_offset) + + def on_loop_end(self): + # Buffers can be reused after 2 loop ends + for nbytes, ws_name, ws_offset in self.prior_loop: + self.ready_for_reuse[nbytes].append((ws_name, ws_offset)) + self.prior_loop = self.current_loop + self.current_loop = [] + self.loop_count += 1 + + def increment_store_count(self): + prior = self.store_count + self.store_count += 1 + return prior + + +@dataclasses.dataclass +class FixedTritonConfig: + config: dict[str, int] + + def __getitem__(self, item): + return self.config[item] + + def __contains__(self, item): + return item in self.config + + +class TritonCSE(CSE[TritonCSEVariable, Union[str, tuple[str, str]]]): + """ + Subclasses CSE to apply the current load mask to the cache key to avoid CSEing + variables across separate masked blocks. + """ + + def augment_key(self, cache_key: str) -> Union[str, tuple[str, str]]: + if mask := V.kernel._load_mask: + return (cache_key, mask.name) + else: + return cache_key + + +@dataclasses.dataclass +class TMACompatibilityChecker: + """ + Checks if the TMA API can be used for load / store triton operations. + """ + + kernel: TritonKernel + dtype: torch.dtype + for_store: bool + force: bool + + def __post_init__(self): + self.failed_debug_prefix = "Cannot use TMA descriptor for load / store since: " + + # Also see Note: TMA API Restrictions for the below + def can_use_tma( + self, + ) -> bool: + if self.force: + return True + if not ( + V.graph.get_current_device_or_throw().type == "cuda" + and torch.cuda.get_device_capability()[0] >= 9 + and config.triton.use_tensor_descriptor + and config.assume_aligned_inputs + and has_triton_stable_tma_api() + # For CUDA The base ptr needs to be aligned + ): + log.debug( + ( + "%s Requires triton>=3.4.0, a CUDA device with cc>=9.0 and" + " `use_tensor_descriptor` and `assume_aligned_inputs` options enabled" + ), + self.failed_debug_prefix, + ) + return False + + # `no_x_dim` => XBLOCK=1, and for reductions this means only one element + # is to be stored . However the TMA API requires that + # the store will be 16 byte aligned, which is not attainable with a single + # element + if self.for_store and self.kernel.no_x_dim: + log.debug( + "%s stores with `no_x_dim` cannot load 16 bytes.", + self.failed_debug_prefix, + ) + return False + + return True + + def are_block_parameters_compatible( + self, + block_params: BlockParameters, + ) -> bool: + """ + Check if the block parameters are valid for TMA. + If force, we allow relying on symbolic hints equivalent + to what we check for Triton templates. + """ + if self.force: + strides = [ + V.graph.sizevars.symbolic_hint(st) for st in block_params.strides + ] + else: + strides = block_params.strides + + # The TMA API requires that the innermost stride is 1 + # and that the outer strides are 16 byte aligned + if not V.graph.sizevars.statically_known_equals(strides[-1], sympy.Integer(1)): + log.debug( + "%s TMA API requires innermost stride to be 1. Strides are: %s", + self.failed_debug_prefix, + strides, + ) + return False + + element_size = self.dtype.itemsize + for stride in strides[:-1]: + if not V.graph.sizevars.statically_known_equals( + ModularIndexing(stride * element_size, 1, sympy.Integer(16)), + sympy.Integer(0), + ): + log.debug( + "%s TMA API requires outer strides to be 16 byte aligned. Dtype bytes: %d, strides: %s", + self.failed_debug_prefix, + element_size, + strides, + ) + return False + + # Now compute the minimum value of the block type that is used + # in the innermost block size that can guarantee that 16 bytes of data + # can be loaded / stored. + # Start with finding the innermost block type + innermost_block_shape = block_params.block_shape[-1] + + # Pure singleton case + if V.graph.sizevars.statically_known_equals( + innermost_block_shape, sympy.Integer(1) + ): + log.debug( + "%s innermost block shape cannot load 16 bytes. Block shape: %s", + self.failed_debug_prefix, + block_params.block_shape, + ) + return False + + innermost_block_type = None + innermost_block_symt = None + for block_type_str in innermost_block_shape.free_symbols: + for block_symt in TritonSymbols.block_types: + if symbol_is_type(block_type_str, block_symt): + innermost_block_type = block_type_str + innermost_block_symt = block_symt + break + + assert innermost_block_type and innermost_block_symt, ( + f"{innermost_block_shape} expr must contain a single block type from {TritonSymbols.block_types}" + ) + + # For persistent reductions, the reduction block sizes are fixed at compile time + if self.kernel.persistent_reduction and not self.for_store: + # For a discontiguous tensor, a 1D block will be split across several + # dimensions, e.g. R0_BLOCK: + # block_shape=[XBLOCK, ((R0_BLOCK + 31)//32), Min(1, ((R0_BLOCK + 31)//32)), Min(32, R0_BLOCK)] + # The persistent R0_BLOCK will be a power of 2 that is at least r0_numel So it + # should be guaranteed that Min(32, R0_BLOCK) * element_size >= 16 + innermost_tree_prefix = prefix_str[innermost_block_symt] + tree_numel = None + for t in self.kernel.range_trees: + if t.is_reduction: + if t.prefix == innermost_tree_prefix: + tree_numel = t.numel + break + assert tree_numel is not None + persistent_rblock = self.kernel._get_persistent_RBLOCK(tree_numel) + innermost_block_bytes = ( + innermost_block_shape.subs({innermost_block_type: persistent_rblock}) + * element_size + ) + if not V.graph.sizevars.statically_known_geq( + innermost_block_bytes, sympy.Integer(16) + ): + log.debug( + "%s persistent reduction innermost block shape cannot load 16 bytes. Block shape: %s, persistent RBLOCK: %d", + self.failed_debug_prefix, + block_params.block_shape, + persistent_rblock, + ) + return False + + else: + # E.g. if the innermost block shape is Min(2, XBLOCK) + # then the TMA API can only be used if the dtype has an 8 byte element + # size so that 16 bytes of data can be loaded in the innermost dimension + try: + + def indexing_div_rep( + x: sympy.Expr, + y: sympy.Expr, + z: Optional[sympy.Expr] = None, + ) -> sympy.Expr: + div = x / y + if z: + div = div % z + return div + + solve_expr = innermost_block_shape * element_size - 16 + # Sympy cannot handle FloorDiv and ModularIndexing well, so simplify + solve_expr_simplified = solve_expr.replace( + FloorDiv, indexing_div_rep + ).replace(ModularIndexing, indexing_div_rep) + min_block_size = next_power_of_2( + int( + sympy.nsolve( + solve_expr_simplified, + innermost_block_type, + 1, + ) + ) + ) + + # TODO: min block size may be too large / introduce redundancy + if min_block_size > self.kernel.max_block( + prefix_str[innermost_block_symt] + ): + log.debug( + "%s the minimum block size to satisfy expression %s is too large: %d", + self.failed_debug_prefix, + solve_expr_simplified, + min_block_size, + ) + return False + + block_type_str = self.kernel.index_to_str(innermost_block_type) + # Check block sizes if the user has provided a fixed triton config + if self.kernel.fixed_config: + if min_block_size > self.kernel.fixed_config[block_type_str]: + log.debug( + "%s For block %s, fixed config block size %d is smaller " + "than the minimum required: %d", + self.failed_debug_prefix, + block_type_str, + self.kernel.fixed_config[block_type_str], + min_block_size, + ) + return False + else: + # Update the minimum block sizes that are passed to triton + # heuristics + self.kernel.tma_min_block_sizes[block_type_str] = max( + min_block_size, + self.kernel.tma_min_block_sizes.get(block_type_str, 1), + ) + + except ValueError: + log.debug( + "%s innermost block shape cannot load 16 bytes. Block params: %s", + self.failed_debug_prefix, + block_params.block_shape, + ) + return False + + return True + + def can_lift(self) -> bool: + """ + Can you lift the make_tensor_descriptor + call to the top of the kernel? This requires + being certain that all of the shape, stride, + and block_shape information is handled in arguments + or top level definitions. + + Right now we assume this is always possible if you force TMA. + """ + return self.force + + +class TritonKernel(SIMDKernel[TritonCSEVariable]): + """A class to represent a triton kernel and helpers to generate + triton kernel programmatically + """ + + overrides = TritonKernelOverrides # type: ignore[assignment] + helper_functions: HelperFunctions + kexpr: Callable[[sympy.Expr], str] = texpr + allow_block_ptr = True + tma_compatibility_checker_cls = TMACompatibilityChecker + transpose_discontiguous_tensor_descriptors_override: Optional[bool] = None + + def __init__( + self, + tiling: dict[str, sympy.Expr], + min_elem_per_thread=0, + optimize_mask=True, + fixed_config: Optional[FixedTritonConfig] = None, + hint_override: Optional[int] = None, + **kwargs, + ) -> None: + self.optimize_mask: bool = optimize_mask + self.fixed_config = fixed_config + super().__init__(tiling, **kwargs) + self.cse = TritonCSE(self.newvar_prefix, self.suffix) + # Cache of values that can be reused for the prologue. + self.prologue_cache: dict[str, str] = {} + self.prologue: IndentedBuffer = IndentedBuffer() + self.post_loop_combine: IndentedBuffer = IndentedBuffer() + self.post_loop_store: IndentedBuffer = IndentedBuffer() + self.outside_loop_vars = OrderedSet[Any]() + self.min_elem_per_thread = min_elem_per_thread + self.block_ptr_id = itertools.count() + self.block_ptr_to_buffer = dict[str, str]() + self.helper_functions = HelperFunctions() + self.pointer_advancements: dict[SymT, dict[str, list[sympy.Expr]]] = ( + collections.defaultdict(dict) + ) + self.tma_min_block_sizes = dict[str, int]() + self.hint_override = hint_override + self._load_counts: collections.Counter[str] = collections.Counter() + self._load_index = 0 + + # A set of autotuning hints to pass as part of triton_meta + self.autotune_hints = OrderedSet[AutotuneHint]() + self.triton_meta: Optional[dict[str, Any]] = None + + if self.inside_reduction: + self.codegen_reduction_numels(self.body) + + if self.cooperative_reduction: + self.init_cooperative_reduction() + + self.codegen_range_tree() + + if self.cooperative_reduction: + self.init_cooperative_reduction_mask() + + self.has_load_with_contiguous_rdim = False + # We track the store name since a store can be canceled later + self.stores_with_contiguous_rdim: list[str] = [] + + @staticmethod + def _has_stride1_on_rdim(index) -> bool: + # These analysis is only needed in deterministic mode so far + # to filter triton configs. Return false immediately to avoid + # increasing compilation time when the mode is off. + if not ( + config.deterministic or config.test_configs.force_filter_reduction_configs + ): + return False + support_vars = index.free_symbols + reduce_vars = [ + var + for var in support_vars + if symbol_is_type(var, TritonSymbols.reduction_types) + ] + + if len(reduce_vars) == 0: + return False + + # for expression "x0 + 150528*((x1//(s27*s38))) + 3*(ModularIndexing(x1, 1, s38)) + 672*(ModularIndexing(x1, s38, s27))" + # stride_vars will results in DivisionByZero error + try: + stride_vars = V.graph.sizevars.stride_vars(index, reduce_vars, support_vars) + except ZeroDivisionError: + return False + + return any(stride == 1 for stride in stride_vars) + + @property + def has_store_with_contiguous_rdim(self) -> bool: + return not all( + is_buffer_removed(name) for name in self.stores_with_contiguous_rdim + ) + + def dtype_to_str(self, dtype: torch.dtype) -> str: + return triton_type(dtype) + + def should_use_cooperative_reduction(self) -> bool: + return self.inside_reduction and V.choices.should_use_cooperative_reduction( + self.features + ) + + def init_cooperative_reduction(self): + """One time setup code for cooperative reductions.""" + assert self.cooperative_reduction + + # shift all the grids over since tl.program_id(0) is for rsplit + for tree in self.range_trees: + if tree.grid_dim is not None: + tree.grid_dim += 1 + + sem_count = self.numels["x"] + if self.fixed_config: + sem_count = CeilDiv(sem_count, self.fixed_config["XBLOCK"]) + self.semaphores_name = self.args.semaphores(sem_count) + self.cooperative_reduction_workspace_cache = CooperativeReductionWorkspaceCache( + self.args + ) + self.body.splice( + """\ + RSPLIT_NEXT_POWER_OF_2: tl.constexpr = triton_helpers.constexpr_next_power_of_2(RSPLIT) + RSPLIT_IS_POWER_OF_2: tl.constexpr = RSPLIT == RSPLIT_NEXT_POWER_OF_2 + HAS_RSPLIT: tl.constexpr = RSPLIT > 1 + rsplit_id = tl.program_id(0) + num_rblocks = (rnumel + RBLOCK - 1) // RBLOCK + rsplit_chunk = (num_rblocks + RSPLIT - 1) // RSPLIT * RBLOCK + rsplit_start = rsplit_chunk * rsplit_id + rsplit_end = rsplit_chunk * (rsplit_id + 1) + """, + ) + if any( + not self._has_constant_mask(tree) + for tree in self.range_trees + if tree.is_reduction + ): + self.body.writeline( + "rsplit_end = tl.where(rsplit_end < rnumel, rsplit_end, rnumel)" + ) + + def init_cooperative_reduction_mask(self): + rsplit_arange = "tl.arange(0, RSPLIT_NEXT_POWER_OF_2)" + if not self.no_x_dim: + rsplit_arange = f"{rsplit_arange}[None, :]" + self.body.writeline(f"rsplit_arange = {rsplit_arange}") + + if self._has_constant_xmask(): + self.body.splice( + """\ + if RSPLIT_IS_POWER_OF_2: + rsplit_mask: tl.constexpr = None + else: + rsplit_mask = rsplit_arange < RSPLIT + """ + ) + else: + assert not self.no_x_dim + self.body.writeline( + "rsplit_mask = xmask if RSPLIT_IS_POWER_OF_2 else ((rsplit_arange < RSPLIT) & xmask)" + ) + + def codegen_range_tree(self): + for tree in self.range_trees: + # reduction indexing goes inside a loop + if not tree.is_loop: + self.iteration_ranges_codegen_header(tree, self.body) + elif self.inside_reduction: + # workaround for this issue: + # https://gist.github.com/jansel/6527126f781559095c5531f98a4235a7 + self.body.writeline( + f"{tree.prefix}base = {self.iteration_ranges_ranges_code(tree)}" + ) + + if self.inside_reduction: + if any(tree.is_loop for tree in self.range_trees): + # If the kernel contains loops, compute rbase. + rn_bases = self._get_reduction_symbols( + "base", integer=True, nonnegative=True + ) + rbase = self._flatten_reduction_indices(rn_bases) + self.body.splice(f"rbase = {self.index_to_str(rbase)}") + else: + # For looped reductions, indexing is deferred to the innermost loop. + self.codegen_reduction_indices(self.body) + + def need_numel_args(self): + """ + Indicate whether we need provide numel as arguments for the generated + kernel calls in the benchmark. + + Should be true for pointwise/reduction kernels but false for triton + matmul kernels. + """ + return True + + def should_use_persistent_reduction(self) -> bool: + return self.inside_reduction and V.choices.should_use_persistent_reduction( + self.features, self.cooperative_reduction + ) + + def want_no_x_dim(self): + return ( + self.persistent_reduction + and len(self.numels) == self.num_reduction_dims + 1 + and self.fixed_config + and self.fixed_config["XBLOCK"] == 1 + ) + + @property + def assert_function(self) -> str: + return "tl.device_assert" + + def indexing( + self, + index: sympy.Expr, + *, + copy_shape: Optional[Union[str, tuple[str]]] = None, + dense_indexing=False, + override_mask=None, + block_ptr=False, + tma_compatibility_checker: Optional[TMACompatibilityChecker] = None, + ): + """ + Compute the index and mask to pass to tl.load() or tl.store() + """ + index = self.prepare_indexing(index) + index_vars = index.free_symbols + has_rindex = False + + mask_vars: OrderedSet[str] = OrderedSet() + for var in sorted(index_vars, key=operator.attrgetter("name")): + assert isinstance(var, sympy.Symbol) + has_rindex = has_rindex or symbol_is_type( + var, TritonSymbols.reduction_types + ) + if override_mask: + pass + elif symbol_is_type(var, SymT.TMP): + # indirect indexing + cse_var = self.cse.varname_map[var.name] + mask_vars.update(cse_var.mask_vars) + elif symbol_is_type( + var, + ( + SymT.UNBACKED_INT, + SymT.SIZE, + SymT.PRECOMPUTED_SIZE, + SymT.INDEX, + SymT.FLOAT, + SymT.UNBACKED_FLOAT, + ), + ): + pass + else: + # var is one of xN, yN, r0_N or r1_N + prefix_matches = [ + prefix_str[symt] + for symt in TritonSymbols.block_types + if symbol_is_type(var, symt) + ] + if len(prefix_matches) == 0: + pass + assert len(prefix_matches) == 1, f"Ambiguous type: {var.name}" + mask_vars.add(f"{prefix_matches[0]}mask") + + need_dense = ( + config.triton.dense_indexing + or dense_indexing + or self._load_mask is not None + ) and index != 0 + + have_dense = True + have_loop_vars = False + dense_mask_vars: OrderedSet[str] = OrderedSet() + + for tree in self.active_range_trees(): + if index_vars.intersection(tree.var_list): + have_loop_vars = True + else: + have_dense = False + dense_mask_vars.add(f"{tree.prefix}mask") + + if ( + ( + (block_ptr and self.allow_block_ptr and config.triton.use_block_ptr) + or ( + tma_compatibility_checker + and tma_compatibility_checker.can_use_tma() + ) + ) + and not override_mask + and not self._load_mask + and len(mask_vars - dense_mask_vars) == 0 + and not self.is_indirect_indexing(index) + and have_loop_vars + # workaround https://github.com/triton-lang/triton/issues/2821 + and self.index_dtype == "tl.int32" + ): + + def match_affine_block( + index: sympy.Expr, range_tree: IterationRangesRoot + ) -> Optional[BlockParameters]: + """ + Matches expressions of the form: + idx = s * xindex + + This implies stride (s,), and shape (XBLOCK,). + """ + stride = BlockPatternMatcher.match_affine_block_expr( + index, range_tree.symbol() + ) + if stride is None: + return None + + return BlockParameters( + shape=[range_tree.numel], + block_shape=[TritonSymbols.get_block_size(range_tree)], + strides=[stride], + offsets=[TritonSymbols.get_block_offset(range_tree)], + ) + + def match_mod_div_block( + index: sympy.Expr, range_tree: IterationRangesRoot + ) -> Optional[BlockParameters]: + """ + Matches higher-dimensional blocks coming from FloorDiv and ModularIndexing. + + Example expression to match: + sN * ((rindex//(d1 * ... * d(N-1)))) + + s1 * ModularIndexing(rindex, 1, d1) + + ... + + s(N-1) * ModularIndexing(rindex, d1 * ... * d(N-2), d(N-1)) + + This iterates over a block of shape (dN, ..., d1) and stride + (sN, ..., s1). (d1,...,d(N-1)) and (s1,...,sN) are + wildcards that we match. + + Note that dN does not appear in the expression, but we solve for it + using range tree numels and the other dims. + """ + + index_var = range_tree.symbol() + + # Bound the possible number of dims. We use the following heuristics: + # - At least one dim for each range tree node. + # - At least one dim for every FloorDiv or ModularIndexing op. + # - At least 2 dims to pattern match. + denom, modulo = sympy.symbols( + "denom modulo", + cls=functools.partial(sympy.Wild, exclude=[index_var]), + ) + num_dims = max( + 2, + # range_tree.nodes only includes the entries for the range tree + # len(range_tree.nodes) <= self.range_tree_nodes + len(range_tree.nodes), + ( + index.count(FloorDiv(index_var, denom)) + + index.count(ModularIndexing(index_var, denom, modulo)) + ), + ) + + match_result = BlockPatternMatcher.match_mod_div_block_expr( + index, index_var, range_tree.numel, num_dims + ) + if match_result is None: + return None + + ( + dims, + strides, + block_index_exprs, + ) = match_result + slice_numels = BlockPatternMatcher.get_slice_numels(dims) + + # Check for applicable iteration range sizes. + # When mapping a 1D block into an ND one, we need to know that + # the number of elements is not changed. This means the slice numels of + # the ND iteration range must evenly divide the length of the 1D block. + # There are two cases where we can guarantee this: + # 1. Numels are powers of 2. If numel == 2 ** n, and we know XBLOCK == 2 ** m, + # with n and m integers, then either numel is a multiple of XBLOCK, or numel + # is less than XBLOCK. (If numel is less than XBLOCK, we round up to 1 below.) + # 2. Numels are multiples of the maximum possible block size. + sizevars = V.graph.sizevars + max_block = self.max_block(range_tree.prefix) + if any( + not sizevars.statically_known_multiple_of(numel, max_block) + and not sizevars.statically_known_power_of_2(numel) + for numel in slice_numels + ): + return None + + # Compute the ND block shape from the linear block size. + # Use CielDiv to round leading dimensions up to 1. + # Non-leading dimensions are clamped to the size of the iteration range, + # while the leading dimension can exceed this to accommodate a larger + # block size. + linear_block_size = TritonSymbols.get_block_size(range_tree) + block_shape: list[sympy.Expr] = [ + CeilDiv(linear_block_size, slice_numels[0]) + ] + [ + sympy.Min(CeilDiv(linear_block_size, numel), dim) + for numel, dim in zip(slice_numels[1:], dims[1:]) + ] + + # Compute block offsets from {xyzr}offset and the matched expressions. + block_offsets: list[sympy.Expr] = [ + sympy_subs( + expr, {index_var: TritonSymbols.get_block_offset(range_tree)} + ) + for expr in block_index_exprs + ] + + return BlockParameters( + shape=dims, + block_shape=block_shape, + strides=strides, + offsets=block_offsets, + ) + + def match_block_subexpr( + expr: sympy.Expr, range_tree: IterationRangesRoot + ) -> Optional[BlockParameters]: + """ + Match a block indexing subexpression involving a single range tree. + """ + for match_func in ( + match_affine_block, + match_mod_div_block, + ): + match = match_func(expr, range_tree) + if match is not None: + return match + + return None + + def match_block_expr() -> Optional[BlockDescriptorOptions]: + index_relative_to_xyr_index = sympy_subs( + index, {v: t.expr for v, t in self.range_tree_nodes.items()} + ) + range_trees = self.active_range_trees() + + # Partition the index into subexpressions pertaining to each range tree. + # For example xindex * 5 + r0_index * 3 is partitioned to + # (xindex * 5, r0_index * 3). + index_subexprs = [ + BlockPatternMatcher.get_subexpr_involving_symbol( + index_relative_to_xyr_index, tree.symbol() + ) + for tree in range_trees + ] + + # Match each range tree's subexpression separately. + range_symbols = OrderedSet(tree.symbol() for tree in range_trees) + block_params = BlockParameters() + for tree, subexpr in zip(range_trees, index_subexprs): + # Reject mixed terms, e.g. xindex * r0_index. + # NB: the zero expression is allowed, for broadcasting. + if len(range_symbols.intersection(subexpr.free_symbols)) > 1: + return None + + # Match the subexpression for this range tree. + params = match_block_subexpr(subexpr, tree) + if params is None: + return None + block_params += params + + # Collect leftover terms as a constant offset. + offset = index_relative_to_xyr_index - sum(index_subexprs) + + # Form the block pointer or TMA descriptor. + self.filter_masks(mask_vars) + + options_class = ( + BlockPtrOptions + if config.triton.use_block_ptr + else TensorDescriptorOptions + ) + nonlocal tma_compatibility_checker + stride_sorter_cls: type[BlockParameters.StrideSorter] + if config.triton.use_block_ptr: + can_lift = False + stride_sorter_cls = BlockParameters.IdentityStrideSorter + else: + tma_compatibility_checker = cast( + TMACompatibilityChecker, tma_compatibility_checker + ) + can_lift = tma_compatibility_checker.can_lift() + + if ( + self.transpose_discontiguous_tensor_descriptors_override + is not None + ): + transpose_contiguous = ( + self.transpose_discontiguous_tensor_descriptors_override + ) + else: + transpose_contiguous = ( + config.triton.transpose_discontiguous_tensor_descriptor + ) + + # For templates: + # Only try transpose if we know the output shape + # in case we need to transpose the data. + if hasattr(self, "template_out_shape"): + transpose_contiguous &= copy_shape is not None + + stride_sorter_cls = ( + BlockParameters.TensorDecriptorStrideSorter + if transpose_contiguous + else BlockParameters.IdentityStrideSorter + ) + + options = options_class.create( + params=block_params, + constant_offset=offset, + range_trees=range_trees, + mask_vars=mask_vars, + get_max_block=self.max_block, + can_lift=can_lift, + stride_sorter_cls=stride_sorter_cls, + ) + if options_class == TensorDescriptorOptions: + tma_compatibility_checker = cast( + TMACompatibilityChecker, tma_compatibility_checker + ) + if not tma_compatibility_checker.are_block_parameters_compatible( + options.params + ): + return None + + return options + + # Return a block pointer, if indexing matches the pattern. + options = match_block_expr() + if options is not None: + return options + expand_str = None + expand_shape: BlockShapeType = None + index_str = self.index_to_str(index) + + def _get_expand_str(): + if copy_shape: + if isinstance(copy_shape, str): + return f"{copy_shape}.shape", None + else: + return "[" + ", ".join(str(c) for c in copy_shape) + "]", copy_shape + else: + return self.dense_size_str(), tuple(self.dense_size_list()) + + if is_sympy_integer_like(index): + # Integer indexing produces a size-1 scalar tensor with the same shape + # as the dense dimension. E.g, if dense_size = [YBLOCK, XBLOCK, R0_BLOCK], + # then we create tl.full([1, 1, 1], int). + # + # Exceptions: + # 1. If copy_shape is explicitly provided, use copy_shape expansion instead. + # 2. If the dense tensor has only one dimension (e.g., [XBLOCK]), + # broadcasting does not apply. For example: + # tl.arange(0, XBLOCK) + tl.full([1], int) # -> broadcasting error + # In this case, we fall back to dense indexing: + # tl.full([XBLOCK], int) + if copy_shape or len(self.dense_size_list()) == 1: + expand_str, expand_shape = _get_expand_str() + else: + expand_str = str([1] * len(self.dense_size_list())) + expand_shape = tuple([1] * len(self.dense_size_list())) + + index_str = f"tl.full({expand_str}, {index_str}, tl.int32)" + if self.fixed_config and not self._has_constant_xmask(): + mask_vars = OrderedSet(["xmask"]) + else: + mask_vars = OrderedSet() + if self._load_mask: + mask_vars.add(self._load_mask) + return IndexingOptions( + index_str, + mask_vars, + expand_str, + has_rindex, + index, + expand_shape=expand_shape, + ) + + if need_dense and not have_dense: + if self.inside_reduction and self.is_native_matmul: + # This avoids full broadcasting (need_dense) when performing native matmul. + # For example, self._load_mask previously required tl.broadcast_to() in index_str. + # Due to the restrictions of tl.dot semantics, we only want to expand the block + # shape for the necessary axes. + # + # Previously: + # tmp1 = tl.load(ptr + tl.broadcast_to(r0, [YBLOCK, XBLOCK, R0_BLOCK]), + # r0_mask & tmp0 & xmask) + # + # Now: + # tmp1 = tl.load(ptr + tl.broadcast_to(r0, [1, 1, R0_BLOCK]), + # r0_mask & tmp0 & xmask) + # + # We achieve this by determining the required block shape through mask inspection. + # When a temporary variable appears in the mask (e.g., self._load_mask), we retrieve + # its true shape by inspecting tmp.mask_vars tracked by TritonCSEVariable. + # + # Caution: it may miss the correct block shape if the specific mask was constant + # and thus not tracked in TritonCSEVariable.mask_vars. + # + # TODO: Once the shape propagation PR lands, reimplement this logic: + # https://github.com/pytorch/pytorch/pull/152198 + mask_shape = mask_vars.copy() + if self._load_mask: + mask_shape.add(self._load_mask) + + xyzr = OrderedSet(["xmask", "ymask", "zmask", "r0_mask"]) + while not mask_shape.issubset(xyzr): + tmp_masks = mask_shape.difference(xyzr) + tmp = tmp_masks.pop() + assert isinstance(tmp, TritonCSEVariable) + mask_shape.discard(tmp) + mask_shape.update(tmp.mask_vars) + + # e.g., expand_list becomes ['ZBLOCK', 1, 1, 'R0_BLOCK'] + expand_list = ["1"] * len(self.dense_size_list()) + for mask in mask_shape: + assert isinstance(mask, str) + for tree in self.active_range_trees(): + if mask.startswith(tree.prefix): + dim = tree.tensor_dim + assert isinstance(dim, int) + expand_list[dim] = self.dense_size_list()[dim] + + expand_str = "[" + ",".join(map(str, expand_list)) + "]" + expand_shape = tuple(expand_list) + index_str = f"tl.broadcast_to({index_str}, {expand_str})" + else: + expand_str, expand_shape = _get_expand_str() + index_str = f"tl.broadcast_to({index_str}, {expand_str})" + mask_vars = dense_mask_vars + elif not have_loop_vars and copy_shape: + expand_shape_str, expand_shape = _get_expand_str() + index_str = f"tl.broadcast_to({index_str}, {expand_shape_str})" + mask_vars = dense_mask_vars + + if expand_shape is None: + if need_dense or have_dense: + _, expand_shape = _get_expand_str() + else: + expand_shape = () + + if override_mask: + mask_vars = OrderedSet([override_mask]) + + if self._load_mask: + mask_vars.add(self._load_mask) + + self.filter_masks(mask_vars) + + return IndexingOptions( + index_str, + mask_vars, + expand_str, + has_rindex, + index, + expand_shape=expand_shape, + ) + + def codegen_block_ptr( + self, + name: str, + var: str, + indexing: Union[BlockPtrOptions, TensorDescriptorOptions], + other="", + ) -> tuple[str, str]: + """Generate a block pointer or tensor descriptor for Triton kernel operations. + + This method creates either a block pointer (for regular Triton operations) or + a tensor descriptor (for TMA operations) based on the indexing type. It handles + caching and reuse of descriptors for performance optimization. + + Args: + name: The name of the buffer/tensor being accessed + var: The variable name for the pointer + indexing: Block pointer options or tensor descriptor options containing + indexing information and boundary check settings + other: Additional parameters string (e.g., padding options) + + Returns: + A tuple containing: + - block_descriptor: The generated block pointer or tensor descriptor variable name + - other: Modified additional parameters string with boundary check options + """ + check = indexing.boundary_check() + if isinstance(indexing, TensorDescriptorOptions): + if check and other: + # The TMA API currently does not support padding values + # but the default is zero + assert other == ", other=0.0" + other = "" + else: + if not check: + # workaround https://github.com/triton-lang/triton/issues/2813 + other = "" + elif other: + assert other == ", other=0.0" + other = f", boundary_check={check!r}, padding_option='zero'" + else: + other = f", boundary_check={check!r}" + + if ( + self.inside_reduction + and self.range_trees[-1].is_loop + and indexing.has_rindex() + ) or indexing.can_lift: + if indexing.can_lift and var in self.prologue_cache: + # Check for epilogue subtiling to reuse the same + # tensor descriptor. + block_descriptor = self.prologue_cache[var] + else: + block_ptr_line = indexing.format(var, roffset=False) + block_var = self.cse.try_get(block_ptr_line) + + # Early return if block descriptor already exists + if block_var: + return str(block_var), other + + block_descriptor_id = next(self.block_ptr_id) + if isinstance(indexing, BlockPtrOptions): + block_descriptor = f"block_ptr{block_descriptor_id}" + else: + block_descriptor = f"tma_descriptor{block_descriptor_id}" + named_var = self.cse.namedvar( + block_descriptor, dtype=torch.uint64, shape=[] + ) + self.cse.put(block_ptr_line, named_var) + + line_body = DeferredLine(name, f"{block_descriptor} = {block_ptr_line}") + if indexing.can_lift: + self.prologue.writeline(line_body) + # Cache the descriptor for epilogue subtiling + self.prologue_cache[var] = block_descriptor + else: + self.body.writeline(line_body) + + if isinstance(indexing, BlockPtrOptions): + # Store for later use. If the buffer is removed the below advancements + # are no longer necessary + self.block_ptr_to_buffer[block_descriptor] = name + + # Generate block pointer advancements, for later use. + for symt in TritonSymbols.reduction_types: + advance_offsets = indexing.advance_roffset(symt) + + # Ignore identity advancements. + if all( + V.graph.sizevars.statically_known_equals( + offset, sympy.Integer(0) + ) + for offset in advance_offsets + ): + continue + + advancements = self.pointer_advancements[symt] + assert block_descriptor not in advancements, ( + f"duplicate advancement for pointer '{block_descriptor}' at type '{symt}'" + ) + advancements[block_descriptor] = advance_offsets + else: + block_descriptor = indexing.format(var) + return block_descriptor, other + + def codegen_block_ptr_store_line(self, name, indexing, block_ptr, value, other=""): + # Stores require an explicit broadcast. We do this in two phases: + # 1. Broadcast the operand to the final shape of the range trees, e.g. [ZBLOCK, + # YBLOCK, XBLOCK]. This protects against implicit broadcasting from loads. + # 2. In case the block pointer / tma descriptor has different dimensionality, broadcast/reshape the + # result to the shape of the pointer. + value = f"tl.broadcast_to({value}, {indexing.final_shape})" + + # These dims no longer need broadcasting. + for idx, (dim, broadcast_dim) in enumerate( + zip(indexing.final_shape, indexing.broadcast_shape) + ): + if V.graph.sizevars.statically_known_equals(dim, broadcast_dim): + indexing.broadcasting_dims[idx] = False + + value = indexing.codegen_broadcast_and_reshape( + value, + indexing.final_shape, + indexing.block_shape, + allow_implicit=False, + for_store=True, + ) + + # workaround https://github.com/triton-lang/triton/issues/2814 + value = f"{value}.to({triton_store_type(V.graph.get_dtype(name))})" + if isinstance(indexing, BlockPtrOptions): + return f"tl.store({block_ptr}, {value}{other})" + return f"{block_ptr}.store({V.kernel.index_to_str(indexing.offsets)}, {value})" + + def check_bounds( + self, + expr: sympy.Expr, + size: sympy.Expr, + lower: bool, + upper: bool, + ): + if not (lower or upper): + return + + assert isinstance(expr, sympy.Expr) + indexing = self.indexing(expr, block_ptr=False, tma_compatibility_checker=None) + assert isinstance(indexing, IndexingOptions) + + index_str = indexing.index_str + mask_str = indexing.mask_str if indexing.has_mask() else None + size_str = texpr(self.rename_indexing(size)) if upper else None + + # expr is already wrapped + line = self.indirect_assert( + index_str, "0" if lower else None, size_str, mask_str + ) + + buffer = self.get_load_buffer(indexing) + self.cse.generate(buffer, line, assignment=False, dtype=torch.int32) + + def get_load_buffer(self, indexing): + if indexing.has_indirect() or indexing.has_tmpmask(): + # Masked loads must come after the mask is computed + return self.compute + elif ( + self.inside_reduction + and self.range_trees[-1].is_loop + and not indexing.has_rindex() + ): + # can lift a common load outside of reduction loop + # One exception is when this is an indirect_load. + return self.body + else: + return self.loads + + def _handle_pdl_before_load(self, wait_buffer): + GDC_WAIT = "tl.extra.cuda.gdc_wait()" + self._load_index += 1 + if self.inside_reduction: + wait_buffer = self.body + if enable_pdl_codegen(): + if self._load_index == 1: + wait_buffer.writeline(GDC_WAIT) + + def _handle_pdl_after_load(self, launch_buffer, result_var): + GDC_LAUNCH = "tl.extra.cuda.gdc_launch_dependents()" + if self.inside_reduction: + launch_buffer = self.post_loop_combine + if enable_pdl_codegen(): + current_load_index = self._load_index + launch_if_last_load = DelayMaybeLine( + lambda: current_load_index == self._load_index, + f"0; {GDC_LAUNCH} # gdc launch for {result_var}", + ) + self.cse.generate(launch_buffer, launch_if_last_load, dtype=torch.int32) + + def partial_accumulate( + self, name: str, reduction_type, val, extra_meta: dict[str, Any] + ): + self.saved_partial_accumulate.append( + PartialAccumulate(name, reduction_type, val) + ) + + def load(self, name: str, index: sympy.Expr): + """ + Load from the memory location 'name', offset by some indexing expression 'index'. + """ + var = self.args.input(name) + load_counts = self._load_counts + load_counts[name] += 1 + make_line: Callable[[str], Union[str, DelayReplaceLine]] = identity + indirect_indexing = self.is_indirect_indexing(index) + original_index = index + dtype = V.graph.get_dtype(name) + indexing = self.indexing( + index, + block_ptr=True, + tma_compatibility_checker=self.tma_compatibility_checker_cls( + self, + dtype, + for_store=False, + force=False, + ), + ) + + if isinstance(indexing, IndexingOptions) and self._has_stride1_on_rdim( + indexing.index + ): + self.has_load_with_contiguous_rdim = True + + has_rindex = indexing.has_rindex() + has_tmpmask = indexing.has_tmpmask() + + # Keep the variable in cache if were going to reuse it. Equiv., if any of the following hold + # 1) We are doing broadcasting + # 2) It is a non-coalesced load. The intuition is that if it's + # non-coalesced, we will likely load each element multiple times in + # practice. + # 3) It will be used later and it won't be CSE'd. Equiv., if all the following hold + # 3.1) We are in a reduction loop + # 3.2) Its not its last use + # 3.3) This load will not be lifted to the body + # + is_coalesced = any( + i == 1 for i in self.get_strides_of_load(original_index).values() + ) + if self.is_broadcasted(original_index): + ep = ", eviction_policy='evict_last'" + elif not is_coalesced: + ep = ", eviction_policy='evict_last'" + elif self.inside_reduction and self.range_trees[-1].is_loop: + + def decide_later(): + if load_counts[name] > expected_count and ( + has_rindex or indirect_indexing + ): + return "evict_last" + return "evict_first" + + expected_count = load_counts[name] + ep = ", eviction_policy=''" + make_line = functools.partial(DelayReplaceLine, "", decide_later) + else: + ep = "" + + if (has_tmpmask or has_rindex) and indexing.has_mask(): + if self._load_other: + other = f", other={constant_repr(self._load_other)}" + else: + other = ", other=0.0" + else: + other = "" + + """Check if the buffer we're about to load, has + more than one read dependency + NOTE: enabled with env variable TORCHINDUCTOR_SKIP_L1 + """ + has_read_deps = True + if config.triton.skip_l1_cache: + buffer_read_counts = self.features.buffer_read_counts() + has_read_deps = buffer_read_counts[name] > 1 + """Skip L1 cache if we're (pretty?) sure the data is used only once + """ + skip_l1_cache = ( + not self.is_broadcasted(original_index) + and not self.inside_reduction + and not has_read_deps + and is_coalesced # for indirect loads is_coalesced is False? + ) + cachemod = "" + if skip_l1_cache: + cachemod = ", cache_modifier='.cg'" + + append_broadcast = None + shape: BlockShapeType = None + + if should_unwrap_unspec_arg(name): + line = var + # unwrapped bf16/fp16 0d tensors are passed in as float32 scalars + # see triton_utils.py:signature_of + if dtype in (torch.float16, torch.bfloat16): + if config.triton.codegen_upcast_to_fp32: + dtype = torch.float32 + else: + line += f".to({triton_type(dtype)})" + shape = () + + else: + if isinstance(indexing, (BlockPtrOptions, TensorDescriptorOptions)): + block_descriptor, other = self.codegen_block_ptr( + name, var, indexing, other + ) + if isinstance(indexing, BlockPtrOptions): + line = f"tl.load({block_descriptor}{other}{ep}{cachemod})" + else: + line = f"{block_descriptor}.load({V.kernel.index_to_str(indexing.offsets)})" + line = indexing.codegen_broadcast_and_reshape( + line, + indexing.block_shape, + indexing.final_shape, + allow_implicit=True, + for_store=False, + ) + shape = indexing.final_shape + elif is_sympy_integer_like(original_index): + line = f"tl.load({var} + ({original_index}))" + append_broadcast = indexing.expand_str + shape = () + else: + line = f"tl.load({var} + ({indexing.index_str}), {indexing.mask_str}{ep}{other}{cachemod})" + + # The block shape of tl.load depends on the indexing expression. + # Inferring shape solely from the mask may miss cases where the mask is constant. + # Inferring from indexing.expand_shape alone may also fail when dense indexing is absent. + # so, iterate over variables in the indexexpr to accurately infer the block shape. + if indexing.expand_shape: + shape = indexing.expand_shape + else: + shape = TritonSymbols.get_block_shape(indexing.index) + + if ( + dtype in (torch.float16, torch.bfloat16) + and config.triton.codegen_upcast_to_fp32 + ): + line += ".to(tl.float32)" + dtype = torch.float32 + if dtype == torch.bool and torch.version.hip is None: + # Workaround for https://github.com/triton-lang/triton/issues/2151 + # tl.load returns int8 when loading from pointer to int1 + # NOTE: Currently causes hangs on bool UTs for ROCm + line += ".to(tl.int1)" + dtype = torch.bool + + load_buffer = self.get_load_buffer(indexing) + self._handle_pdl_before_load(load_buffer) + result_var = self.cse.generate( + load_buffer, make_line(line), dtype=dtype, shape=shape + ) + self._handle_pdl_after_load(load_buffer, result_var) + if result_var.use_count > 1: + load_counts[name] -= 1 # don't double count cache hit + assert isinstance(result_var, TritonCSEVariable) + result_var.mask_vars = indexing.mask_vars # type: ignore[assignment] + + if append_broadcast: + line = f"tl.broadcast_to({result_var}, {append_broadcast})" + result_var = self.cse.generate( + load_buffer, line, dtype=dtype, shape=indexing.expand_shape + ) + if indexing.mask_vars: + if dtype.is_floating_point: + zero = "0.0" + elif dtype == torch.bool: + zero = "True" + else: + zero = "0" + other_val = ( + constant_repr(self._load_other) if self._load_other else zero + ) + line = f"tl.where({indexing.mask_str}, {result_var}, {other_val})" + result_var = self.cse.generate( + load_buffer, line, dtype=dtype, shape=result_var.shape + ) + + if not self.inside_reduction or (not indexing.has_rmask() and not has_rindex): + self.outside_loop_vars.add(result_var) + + return result_var + + def store( + self, name: str, index: sympy.Expr, value: CSEVariable, mode: StoreMode = None + ) -> None: + """ + store the 'value' to the memory location 'name', offset by some indexing expression 'index'. + """ + + var = self.args.output(name) + original_index = index + dtype = V.graph.get_dtype(name) + + tma_compatibility_checker = None + if mode is None or mode == "tma": + force = mode == "tma" + tma_compatibility_checker = self.tma_compatibility_checker_cls( + self, + dtype, + for_store=True, + force=force, + ) + indexing = self.indexing( + index, + dense_indexing=True, + block_ptr=mode is None, + tma_compatibility_checker=tma_compatibility_checker, + ) + + if isinstance(indexing, IndexingOptions) and self._has_stride1_on_rdim( + indexing.index + ): + self.stores_with_contiguous_rdim.append(name) + + # Guard against write-after-read corruption in triton. + # See # https://github.com/triton-lang/triton/issues/1615 + # This triton bug means that a load which is broadcasted over multiple + # warps may see the result of a store that happens later in the triton + # program. The workaround is to add a barrier before storing, which + # enforces that all warps have already read the data. + is_inplace = name in self.args.inplace_buffers + is_broadcasted = self.is_broadcasted(original_index) + if is_inplace and is_broadcasted: + self.stores.writeline(DeferredLine(name, "tl.debug_barrier()")) + + if isinstance(indexing, (BlockPtrOptions, TensorDescriptorOptions)): + block_descriptor, other = self.codegen_block_ptr(name, var, indexing) + # block_ptr / tma descriptor stores don't do implicit casting + line = self.codegen_block_ptr_store_line( + name, indexing, block_descriptor, value, other + ) + elif mode is None: + # If indexing is an integer and value has block shape larger than one, + # broadcasting fails. So, we manually broadcast indexing to the value shape. + # Without broadcast : + # tl.store(out_ptr0 + (tl.full([1, 1], 0, tl.int32)), tmp4, xmask) # Fail + # + # With broadcast: + # tl.store(out_ptr0 + (tl.full([1, 1], 0, tl.int32).broadcast_to((XBLOCK,1)), tmp4, xmask) + indexing_str = indexing.index_str + if ( + is_sympy_integer_like(index) + and value.shape is not None + and not all(str(x) == "1" for x in value.shape) + ): + value_shape = ", ".join(map(str, value.shape)) + indexing_str += f".broadcast_to({value_shape})" + line = f"tl.store({var} + ({indexing_str}), {value}, {indexing.mask_str})" + elif mode == "atomic_add": + self.atomic_add_found = True + indexing_str = indexing.index_str + if ( + is_sympy_integer_like(index) + and value.shape is not None + and not all(str(x) == "1" for x in value.shape) + ): + value_shape = ", ".join(map(str, value.shape)) + indexing_str += f".broadcast_to({value_shape})" + line = f"tl.atomic_add({var} + ({indexing_str}), {value}, {indexing.mask_str}, sem='relaxed')" + else: + raise NotImplementedError(f"store mode={mode}") + + exit_stack = contextlib.ExitStack() + if not self.inside_reduction and self.cooperative_reduction: + exit_stack.enter_context(self.guard_cooperative_store(name, self.stores)) + + self.stores.writeline(DeferredLine(name, line)) + + if not self.inside_reduction: + self.outside_loop_vars.add(value) + + exit_stack.close() + + def device_assert_async(self, cond, msg) -> None: + self.compute.writeline(f"tl.device_assert({cond}, {repr(msg)})") + + def guard_cooperative_store(self, name, buffer): + """ + For cooperative reductions only one thread block should write out the result. + We rotate which thread block does each write for better parallelism + """ + idx = self.cooperative_reduction_workspace_cache.increment_store_count() + buffer.writeline(DeferredLine(name, f"if rsplit_id == ({idx} % RSPLIT):")) + return buffer.indent() + + def _combine_masks(self, *variables: Optional[CSEVariable]): + masks = None + for elem in variables: + if elem is None: + continue + if hasattr(elem, "mask_vars"): + if masks is None: + masks = elem.mask_vars + else: + masks = masks | elem.mask_vars + return masks + + def bucketize( + self, + values: CSEVariable, + boundaries: tuple[str, sympy.Expr, sympy.Expr, sympy.Expr], + boundary_indices: CSEVariable, + indexing_dtype: torch.dtype, + right: bool, + sorter: Optional[tuple[str, sympy.Expr]] = None, + sorter_indices: Optional[CSEVariable] = None, + ) -> CSEVariable: + """ + See [Note: Inductor bucketize op] + """ + + # Triton performance for bucketize_binary_search is much better when the number + # of threads equals the number of elements. + # If we're trying to use a bucketize kernel, we should make sure that an + # autotuning config with num_elements_per_warp=(warp_size) exists. + self.autotune_hints.add(AutotuneHint.ONE_ELEMENT_PER_THREAD) + + boundaries_ptr = self.args.input(boundaries[0]) + boundary_size = self.index_to_str(boundaries[1]) + boundaries_underlying_numel = self.index_to_str(boundaries[2]) + boundary_stride = self.index_to_str(boundaries[3]) + sorter_ptr = self.args.input(sorter[0]) if sorter else "None" + sorter_stride = self.index_to_str(sorter[1]) if sorter else "None" + + if indexing_dtype == torch.int32: + triton_dtype = "tl.int32" + elif indexing_dtype == torch.int64: + triton_dtype = "tl.int64" + else: + raise NotImplementedError( + "Bucketize only supports indexing with int32 and int64" + ) + + self._handle_pdl_before_load(self.compute) + result = self.cse.generate( + self.compute, + f"triton_helpers.bucketize_binary_search({values}, " + f"{boundaries_ptr}, {boundary_size}, {boundaries_underlying_numel}, {boundary_stride}, " + f"{boundary_indices}, " + f"{triton_dtype}, " + f"{right}, " + f"{sorter_ptr}, {sorter_stride}, " + f"{sorter_indices}, " + ")", + dtype=indexing_dtype, # type: ignore[attr-defined] + shape=values.shape, + ) + self._handle_pdl_after_load(self.compute, result) + + masks = self._combine_masks(values, boundary_indices, sorter_indices) + result.mask_vars = masks # type: ignore[attr-defined] + + return result + + def reduction_resize(self, value) -> str: + ndims = self.triton_tensor_ndim() + if ndims == 1: + return f"triton_helpers.promote_to_tensor({value})" + + nreduce = self.num_reduction_dims + sizes = [":"] * (ndims - nreduce) + ["None"] * nreduce + return f"{value}[{', '.join(sizes)}]" + + def reduction_resize_and_shape(self, value, shape) -> tuple[str, BlockShapeType]: + ndims = self.triton_tensor_ndim() + if ndims == 1: + return f"triton_helpers.promote_to_tensor({value})", shape + + nreduce = self.num_reduction_dims + sizes = [":"] * (ndims - nreduce) + ["None"] * nreduce + new_shape = ( + (*shape[: (ndims - nreduce)], *[1] * nreduce) if shape is not None else None + ) + return f"{value}[{', '.join(sizes)}]", new_shape + + def reduction_collapse_dims( + self, buffer, value: CSEVariable, dtype: torch.dtype + ) -> CSEVariable: + """ + Reshape to RBLOCK, collapsing all reduction dims. + """ + # This is not needed for 1D reductions. + if self.num_reduction_dims == 1: + return value + + target_ndim = self.triton_tensor_ndim() - self.num_reduction_dims + initial_shape = self.dense_size_list() + target_shape = initial_shape[:target_ndim] + ["RBLOCK"] + return self.cse.generate( + buffer, + triton_reshape(str(value), initial_shape, target_shape), + dtype=dtype, + shape=tuple(target_shape), + ) + + def reduction( + self, + dtype: torch.dtype, + src_dtype: torch.dtype, + reduction_type: ReductionType, + value: Union[CSEVariable, tuple[CSEVariable, ...]], + ) -> Union[CSEVariable, tuple[CSEVariable, ...]]: + """ + codegen reduction of value to Triton according the reduction_type + """ + + def maybe_upcast(value: CSEVariable) -> CSEVariable: + # Math reductions in FP16/BF16 are less accurate because the Triton compiler does not + # automatically promote to FP32 for accumulation. Additionally, max/min reductions + # do not support FP16/BF16. We manually promote to FP32 here. + return ( + ops.to_dtype(value, torch.float32) + if value.dtype + in [ + torch.float16, + torch.bfloat16, + ] + else value + ) + + original_dtypes = [val.dtype for val in pytree.tree_leaves(value)] + value = pytree.tree_map(maybe_upcast, value) + if any(x in [torch.float16, torch.bfloat16] for x in original_dtypes): + # Only promote FB16/BF16; do not promote other integer/boolean dtypes + src_dtype = torch.promote_types(src_dtype, torch.float32) + dtype = torch.promote_types(dtype, torch.float32) + + assert self.inside_reduction + masks = OrderedSet(f"{tree.prefix}mask" for tree in self.range_trees) + self.filter_masks(masks) + masks = sorted(masks) + if self._load_mask: + masks.append(self._load_mask) + reduction_range_prefix = self.range_trees[-1].prefix[0] + + # When we do native matmtul codegen, + # we don't want to keep the R0_BLOCK/R1_BLOCK in the accumulator. + # so instead of naively calling dense_size_str(), we filter out + # reduction block from accumulator and only keep (Y,X). + # In bmm (Z,Y,R)x(Z,R,X) case, we also remove z dimension from accumulator + # because 3d (Z,Y,X) tl.dot is somehow slower than 2d tl.dot. + # Instead, we force ZBLOCK to be always 1 during autotune. + dense_size_str: str + if self.is_native_matmul: + dense_sizes = self.dense_size_list() + assert len(dense_sizes) >= 3 + xy_sizes_only = [size for size in dense_sizes if "X" in size or "Y" in size] + dense_size_str = f"[{', '.join(xy_sizes_only)}]" + value_shape = tuple(xy_sizes_only) + else: + dense_size_str = self.dense_size_str() + value_shape = tuple(self.dense_size_list()) + + # Say we have + # tmp0 = ops.constant(1, torch.int64) + # tmp1 = ops.reduction(torch.int64, torch.int64, "sum", tmp0) + # tmp0 in the triton code is either a scalar, or single-element tensor + # so if we emit tl.sum directly, it will only give 1 instead of RBLOCK * 1 + # To avoid this, we broadcast to the expected shape first. + value = self._map_tuple_or_scalar( + lambda v: self.cse.generate( + self.compute, + f"tl.broadcast_to({v}, {dense_size_str})", + dtype=v.dtype, + shape=value_shape, + ), + value, + ) + + logical_index = None + if reduction_type in ("argmin", "argmax"): + if isinstance(value, tuple): + value, logical_index = value + + dim = self.triton_tensor_ndim() - self.num_reduction_dims + root_op: str + + def final_reduction( + buffer, + value: CSEVariable, + result_type: Optional[torch.dtype], + ) -> tuple[str, Optional[torch.dtype], BlockShapeType]: + """ + Helper to generate a reduction call, e.g. tl.sum. + """ + triton_reduction_fn = get_triton_reduction_function(reduction_type) + + value = self.reduction_collapse_dims(buffer, value, dtype) + if reduction_type == "dot": + # Native matmul is a special case because accumulator shape is fixed to (Y,X) + is_bmm = len(self.dense_size_list()) == 4 + assert value.shape is not None + if is_bmm: + result = f"{value}[None,:,:,None]" # (Y,X) to (Z=1,Y,X,R=1) + shape = [1, *value.shape, 1] + else: + result = f"{value}[:,:,None]" # (Y,X) to (Y,X,R=1) + shape = [*value.shape, 1] + else: + result, shape = self.reduction_resize_and_shape( # type: ignore[assignment] + f"{triton_reduction_fn}({value}, {dim})", value.shape + ) + + if result_type is not None: + result = f"{result}.to({self.dtype_to_str(result_type)})" + else: + result_type = value.dtype + + return result, result_type, shape + + def final_reduction_define( + buffer, + result_var: CSEVariable, + value: CSEVariable, + result_type: Optional[torch.dtype], + ) -> None: + """ + Generate a reduction and assign it to an existing variable. + """ + value, _, _ = final_reduction(buffer, value, result_type) + buffer.splice(f"{result_var} = {value}") + + def final_argreduce(buffer, result_var, value, index): + value = self.reduction_collapse_dims(buffer, value, dtype) + index = self.reduction_collapse_dims(buffer, index, dtype) + buffer.splice( + f"""\ + {result_var}_val, {result_var}_idx = triton_helpers.{root_op}_with_index({value}, {index}, {dim}) + {result_var} = {self.reduction_resize(f"{result_var}_idx")} + """ + ) + + cache_key = (src_dtype, reduction_type, value) + if cache_key in self.cse.reduction_cache: + return self.cse.reduction_cache[cache_key] + + acc_type = triton_acc_type(src_dtype) + torch_acc_type = upcast_acc_dtype(src_dtype) + result_shape = list(self.dense_size_list()) + result_shape[dim] = "1" + result_var: Any = self.cse.newvar( + dtype=torch_acc_type, shape=tuple(result_shape) + ) + result_var.mask_vars = OrderedSet( + var for var in masks if not prefix_is_reduction(var[0]) + ) + cond = " & ".join(masks) + + def where_cond(tval, fval): + if not cond: + return tval + return TritonKernelOverrides.where(cond, tval, fval) + + if self.persistent_reduction: + default = ir.Reduction.default_value(reduction_type, src_dtype) + + def update_constant_dtype(constant, src_dtype, dst_dtype): + "update reduction constant mask value to match dst_dtype" + + # int is the only mask which may not fit within lower bitwidth, + # because float uses inf/-inf + if src_dtype.is_floating_point or src_dtype == torch.bool: + return constant + + if src_dtype == dst_dtype or constant == 0: + return constant + + if constant == torch.iinfo(src_dtype).max: + return torch.iinfo(dst_dtype).max + elif constant == torch.iinfo(src_dtype).min: + return torch.iinfo(dst_dtype).min + else: + return constant + + def _mask_value(value, default) -> CSEVariable: + default = update_constant_dtype(default, src_dtype, value.dtype) + default_str = self._map_tuple_or_scalar(constant_repr, default) + + return self.cse.generate( + self.compute, + where_cond(value, default_str), + dtype=value.dtype, + shape=value.shape, + ) + + masked_value: Union[CSEVariable, Sequence[CSEVariable]] + if reduction_type == "online_softmax_reduce": + # Don't generate mask value for online_softmax since we + # will fallback below + pass + elif isinstance(value, tuple): + masked_value = [_mask_value(v, d) for v, d in zip(value, default)] # type: ignore[arg-type] + elif reduction_type == "dot": + # Here, we don't perform the masking. + # Masking w/ where condition in native matmul is handled in ops.dot codegen. + # Since tl.dot performs reduction within the triton block, + # masking should happen before the tl.dot is called. + masked_value = self.cse.generate(self.compute, value, dtype=value.dtype) + else: + masked_value = _mask_value(value, default) + + if reduction_type in ("argmax", "argmin"): + assert isinstance(masked_value, CSEVariable) + accumulator_dtype = V.kernel.get_index_dtype_as_torch_dtype() + if logical_index: + accumulator_index = f"({str(logical_index)}).to({self.dtype_to_str(accumulator_dtype)})" + else: + accumulator_index = str( + self.cse.generate( + self.compute, + f"tl.broadcast_to({reduction_range_prefix}index, {masked_value}.shape)", + dtype=accumulator_dtype, + shape=masked_value.shape, + ) + ) + root_op = {"argmax": "max", "argmin": "min"}[reduction_type] + final_argreduce( + self.compute, result_var, masked_value, accumulator_index + ) + result_var.dtype = accumulator_dtype + elif reduction_type == "welford_reduce": + if self.cooperative_reduction: + # cooperative reductions require full welford for correctness + result_var = self.welford_reduce( + result_var, reduction_type, value, where_cond, acc_type, dtype + ) + else: + # For persistent reductions, don't bother with + # welford's algorithm since it uses more registers, and + # taking two reductions doesn't increase memory usage. + result_var = self.welford_reduce_fallback(dtype, value) + elif reduction_type == "welford_combine": + assert isinstance(masked_value, Sequence) + (mean, m2, weight) = masked_value + result_var = tuple( + self.cse.generate(self.compute, value, dtype=dtype, shape=shape) + for value, shape in self._welford( + self.compute, mean, m2, weight, dim, dtype + ) + ) + elif reduction_type == "online_softmax_reduce": + # All data is loaded to register anyway, no need to do + # online softmax + result_var = self.prepare_softmax_twopass_fallback(dtype, value) + else: + assert isinstance(masked_value, CSEVariable) + _result, _dtype, _shape = final_reduction( + self.compute, masked_value, masked_value.dtype + ) + result_var = self.cse.generate( + self.compute, _result, dtype=_dtype, shape=_shape + ) + else: + accumulator = self.cse.namedvar( + f"_{result_var}", + dtype=torch_acc_type, + shape=tuple(self.dense_size_list()), + ) + default = ir.Reduction.default_accumulator(reduction_type, src_dtype) + default = self._map_tuple_or_scalar(constant_repr, default) + if not isinstance(default, tuple): + if reduction_type == "dot": + dense_sizes = self.dense_size_list() + assert len(dense_sizes) >= 3 + xy_sizes_only = [ + size for size in dense_sizes if "X" in size or "Y" in size + ] + accumulator.shape = tuple(xy_sizes_only) + dense_size_str = f"[{', '.join(xy_sizes_only)}]" + self.body.writeline( + f"{accumulator} = tl.full({dense_size_str}, {default}, {acc_type})" + ) + else: + self.body.writeline( + f"{accumulator} = tl.full({self.dense_size_str()}, {default}, {acc_type})" + ) + + if reduction_type in ("argmax", "argmin"): + accumulator_index = f"_{result_var}_index" + index_dtype = self.features.select_index_dtype() + self.body.writeline( + f"{accumulator_index} = tl.full({self.dense_size_str()}, " + f"{torch.iinfo(index_dtype).max}, {self.dtype_to_str(index_dtype)})" + ) + root_op = {"argmax": "max", "argmin": "min"}[reduction_type] + # Use logical_index if it was unpacked, otherwise fall back to physical index + index_var = ( + f"({str(logical_index)}).to({self.dtype_to_str(index_dtype)})" + if logical_index is not None + else f"{reduction_range_prefix}index" + ) + self.compute.splice( + f"""\ + {accumulator}_next, {accumulator_index}_next = triton_helpers.{root_op}imum_with_index( + {accumulator}, {accumulator_index}, {value}, {index_var} + ) + {accumulator} = {where_cond(f"{accumulator}_next", accumulator)} + {accumulator_index} = {where_cond(f"{accumulator_index}_next", accumulator_index)} + """ + ) + final_argreduce( + self.post_loop_combine, result_var, accumulator, accumulator_index + ) + elif is_welford_reduction(reduction_type): + result_var = self.welford_reduce( + result_var, reduction_type, value, where_cond, acc_type, dtype + ) + elif reduction_type == "online_softmax_reduce": + accumulator_max = f"_{result_var}_max" + accumulator_sum = f"_{result_var}_sum" + + # setup accumulator + self.body.writeline( + f"{accumulator_max} = tl.full({self.dense_size_str()}, float('-inf'), {acc_type})" + ) + self.body.writeline( + f"{accumulator_sum} = tl.zeros({self.dense_size_str()}, {acc_type})" + ) + + # combine + # Note, we pass config.use_fast_math to the JITFunction + # since a triton kernel can not access a config. + self.compute.splice( + f""" + {accumulator_max}_next, {accumulator_sum}_next = triton_helpers.online_softmax_combine( + {accumulator_max}, {accumulator_sum}, {value}, {config.use_fast_math} + ) + """ + ) + + # mask + self.compute.splice( + f""" + {accumulator_max} = {where_cond(f"{accumulator_max}_next", accumulator_max)} + {accumulator_sum} = {where_cond(f"{accumulator_sum}_next", accumulator_sum)} + """ + ) + + # reduce. Similar to the final reduction for coopereative + # reduction + result_max = result_var + result_sum = self.cse.newvar(dtype=dtype, shape=result_max.shape) + + result_var = self.online_softmax_reduce_final_reduction( + self.post_loop_combine, + result_max, + result_sum, + accumulator_max, + accumulator_sum, + dim, + dtype, + ) + else: + combine_fn = ir.get_reduction_combine_fn(reduction_type, src_dtype) + updated = combine_fn(accumulator, value) + if reduction_type == "dot": + self.compute.writeline(f"{accumulator} = {updated}") + else: + self.compute.writeline( + f"{accumulator} = {where_cond(updated, accumulator)}" + ) + + if src_dtype == torch.bool: + # This is only really used for aten.any. It changes the + # final reduction of a non-persistent reduction from + # tmp5 = triton_helpers.max(_tmp5, 1)[:, None] + # to + # tmp5 = triton_helpers.max(_tmp5.to(tl.int8), 1)[:, None].to(tl.int1) + # which is needed because tl.reduce doesn't support tl.int1 + accumulator = self.cse.generate( + self.post_loop_combine, + f"{accumulator}.to(tl.int8)", + dtype=torch.int8, + shape=accumulator.shape, + ) + + final_reduction_define( + self.post_loop_combine, result_var, accumulator, None + ) + + if self.cooperative_reduction: + default = ir.Reduction.default_accumulator(reduction_type, src_dtype) + exit_stack = contextlib.ExitStack() + for buf in (self.post_loop_combine, self.post_loop_store): + # only do cooperative reduction combines if we have more than one thread block + buf.writeline("if HAS_RSPLIT:") + exit_stack.enter_context(buf.indent()) + + if reduction_type in ("argmax", "argmin"): + self.post_loop_combine.writeline( + f"{result_var}_bval = {self.reduction_resize(f'{result_var}_val')}" + ) + peer_val = self.codegen_cooperative_reduction_peer_combine( + f"{result_var}_bval", src_dtype, default + ) + index_dtype = self.features.select_index_dtype() + peer_idx = self.codegen_cooperative_reduction_peer_combine( + result_var, index_dtype, torch.iinfo(index_dtype).max + ) + final_argreduce(self.post_loop_store, result_var, peer_val, peer_idx) + elif is_welford_reduction(reduction_type): + assert reduction_type == "welford_reduce" + result_mean, result_m2, result_weight = result_var + peer_mean = self.codegen_cooperative_reduction_peer_combine( + result_mean, + upcast_acc_dtype(src_dtype), + default[0], # type: ignore[index] + ) + peer_m2 = self.codegen_cooperative_reduction_peer_combine( + result_m2, + upcast_acc_dtype(src_dtype), + default[1], # type: ignore[index] + ) + peer_weight = self.codegen_cooperative_reduction_peer_combine( + result_weight, + upcast_acc_dtype(src_dtype), + default[2], # type: ignore[index] + ) + self.welford_reduce_final_reduction( + self.post_loop_store, + result_mean, + result_m2, + result_weight, + peer_mean, + peer_m2, + peer_weight, + dim, + dtype, + ) + elif reduction_type == "online_softmax_reduce": + result_max, result_sum = result_var + assert isinstance(default, Sequence) + peer_max = self.codegen_cooperative_reduction_peer_combine( + result_max, upcast_acc_dtype(src_dtype), default[0] + ) + peer_sum = self.codegen_cooperative_reduction_peer_combine( + result_sum, upcast_acc_dtype(src_dtype), default[1] + ) + self.online_softmax_reduce_final_reduction( + self.post_loop_store, + result_max, + result_sum, + peer_max, + peer_sum, + dim, + dtype, + ) + else: + peers = self.codegen_cooperative_reduction_peer_combine( + result_var, upcast_acc_dtype(src_dtype), default + ) + final_reduction_define(self.post_loop_store, result_var, peers, None) + exit_stack.close() + + self.cse.reduction_cache[cache_key] = result_var + + if isinstance(result_var, tuple): + assert all(isinstance(x, TritonCSEVariable) for x in result_var) + self.outside_loop_vars.update(result_var) + + # Match output dtype with input dtype + if reduction_type in ("welford_reduce", "online_softmax_reduce"): + assert len(original_dtypes) == 1 + original_dtypes = len(result_var) * original_dtypes + + assert len(result_var) == len(original_dtypes) + for var, orig_dtype in zip(result_var, original_dtypes): + assert orig_dtype is not None + if var.dtype != orig_dtype: + self.post_loop_combine.writeline( + f"{var} = {var}.to({triton_compute_type(orig_dtype)})" + ) + else: + assert isinstance(result_var, TritonCSEVariable) + self.outside_loop_vars.add(result_var) + + # Match output dtype with input dtype + if result_var.dtype != original_dtypes[0]: + assert original_dtypes[0] is not None + self.post_loop_combine.writeline( + f"{result_var} = {result_var}.to({triton_compute_type(original_dtypes[0])})" + ) + + return result_var + + def _online_softmax_reduce( + self, buffer, accumulator_max, accumulator_sum, dim, dtype: torch.dtype + ): + accumulator_max = self.reduction_collapse_dims(buffer, accumulator_max, dtype) + accumulator_sum = self.reduction_collapse_dims(buffer, accumulator_sum, dtype) + result_max, result_sum = [str(self.cse.newvar(dtype=dtype)) for _ in range(2)] + buffer.splice( + f""" + {result_max}, {result_sum} = triton_helpers.online_softmax_reduce( + {accumulator_max}, {accumulator_sum}, {dim}, {config.use_fast_math}) + {result_max} = {self.reduction_resize(f"{result_max}")} + {result_sum} = {self.reduction_resize(f"{result_sum}")} + """ + ) + + return result_max, result_sum + + def _welford(self, buffer, mean, m2, weight, dim, dtype: torch.dtype): + """ + Helper to codegen triton_helpers.welford. + """ + mean, m2, weight = ( + self.reduction_collapse_dims(buffer, value, dtype) + for value in (mean, m2, weight) + ) + welford = f"triton_helpers.welford({mean}, {m2}, {weight}, {dim})" + + def reduced_shape(shape): + return tuple(shape[0:dim] + shape[dim + 1 :]) + + welford_results = [ + self.cse.newvar(dtype=dtype, shape=reduced_shape(value.shape)) + for value in (mean, m2, weight) + ] + buffer.writeline(f"{', '.join([str(r) for r in welford_results])} = {welford}") + + return tuple( + self.reduction_resize_and_shape(value, value.shape) + for value in welford_results + ) + + def welford_reduce( + self, result_var, reduction_type, value, where_cond, acc_type, dtype + ): + """Helper to codegen a welford reduction""" + dim = self.triton_tensor_ndim() - self.num_reduction_dims + + accumulator = TritonCSEVariable( + f"{result_var}_mean", + shape=tuple(self.dense_size_list()), + dtype=acc_type, + bounds=ValueRanges.unknown(), + ) + accumulator_m2 = TritonCSEVariable( + f"{result_var}_m2", + shape=tuple(self.dense_size_list()), + dtype=acc_type, + bounds=ValueRanges.unknown(), + ) + accumulator_weight = TritonCSEVariable( + f"{result_var}_weight", + shape=tuple(self.dense_size_list()), + dtype=acc_type, + bounds=ValueRanges.unknown(), + ) + self.body.writeline( + f"{accumulator} = tl.zeros({self.dense_size_str()}, {acc_type})" + ) + self.body.writeline( + f"{accumulator_m2} = tl.zeros({self.dense_size_str()}, {acc_type})" + ) + self.body.writeline( + f"{accumulator_weight} = tl.zeros({self.dense_size_str()}, {acc_type})" + ) + if reduction_type == "welford_combine": + mean, m2, weight = value + self.compute.splice( + f"""\ + {accumulator}_next, {accumulator_m2}_next, {accumulator_weight}_next = triton_helpers.welford_combine( + {accumulator}, {accumulator_m2}, {accumulator_weight}, + {mean}, {m2}, {weight} + ) + """ + ) + else: + assert reduction_type == "welford_reduce" + self.compute.splice( + f"""\ + {accumulator}_next, {accumulator_m2}_next, {accumulator_weight}_next = triton_helpers.welford_reduce( + {value}, {accumulator}, {accumulator_m2}, {accumulator_weight}, roffset == 0 + ) + """ + ) + self.compute.splice( + f"""\ + {accumulator} = {where_cond(f"{accumulator}_next", accumulator)} + {accumulator_m2} = {where_cond(f"{accumulator_m2}_next", accumulator_m2)} + {accumulator_weight} = {where_cond(f"{accumulator_weight}_next", accumulator_weight)} + """ + ) + result_mean = result_var + return self.welford_reduce_final_reduction( + self.post_loop_combine, + result_mean, + None, + None, + accumulator, + accumulator_m2, + accumulator_weight, + dim, + dtype, + ) + + def welford_reduce_final_reduction( + self, + buffer, + result_mean, + result_m2, + result_weight, + mean, + m2, + weight, + dim, + dtype, + ): + """Helper to codegen call to triton_helpers.welford""" + values = list(self._welford(buffer, mean, m2, weight, dim, dtype)) + + result_exprs = [result_mean, result_m2, result_weight] + for i, (result_expr, (value, shape)) in enumerate(zip(result_exprs, values)): + if result_expr is None: + result_expr = self.cse.newvar(dtype=dtype, shape=shape) + result_exprs[i] = result_expr + buffer.splice(f"{result_expr} = {value}") + + return tuple(result_exprs) + + def online_softmax_reduce_final_reduction( + self, buffer, result_max, result_sum, peer_max, peer_sum, dim, dtype + ): + accumulator_max = self.reduction_collapse_dims(buffer, peer_max, dtype) + accumulator_sum = self.reduction_collapse_dims(buffer, peer_sum, dtype) + buffer.splice( + f""" + {result_max}, {result_sum} = triton_helpers.online_softmax_reduce( + {accumulator_max}, {accumulator_sum}, {dim}, {config.use_fast_math}) + {result_max} = {self.reduction_resize(f"{result_max}")} + {result_sum} = {self.reduction_resize(f"{result_sum}")} + """ + ) + return result_max, result_sum + + def max_rsplit(self): + if self.fixed_config: + return self.fixed_config["RSPLIT"] + return TRITON_MAX_RSPLIT + + def codegen_cooperative_reduction_peer_combine( + self, result_var, dtype, default_val + ) -> CSEVariable: + """ + Generate code to save a [XBLOCK, RSPLIT] temporary workspace, where each thread block writes a different + column. After the barrier, every thread block loads the completed value so that it can compute the final + value independently. + """ + xnumel = self.numels["x"] + mask = "xindex < xnumel" if not self._has_constant_xmask() else None + + nbytes = xnumel * dtype.itemsize * self.max_rsplit() + ws_name, ws_offset = self.cooperative_reduction_workspace_cache.allocate(nbytes) + + self.post_loop_combine.splice( + f""" + {result_var}_ws = ({ws_name} + {self.index_to_str(ws_offset)}).to(tl.pointer_type({triton_type(dtype)})) + tl.store({result_var}_ws + (xindex * RSPLIT + rsplit_id), {result_var}, {mask}) + """, + strip=True, + ) + peers = self.create_cse_var( + f"{result_var}_peers", + shape=["XBLOCK", "RSPLIT"], + dtype=dtype, + bounds=ValueRanges.unknown(), + ) + self.post_loop_store.writeline( + f"{peers} = tl.load({result_var}_ws + (xindex * RSPLIT + rsplit_arange), " + f"rsplit_mask, eviction_policy='evict_first', other=triton_helpers.if_mask(rsplit_mask, {constant_repr(default_val)}))" + ) + return peers + + def store_reduction( + self, + name: str, + index: sympy.Expr, + value: CSEVariable, + ): + assert self.inside_reduction + self.inside_reduction = False + dtype = V.graph.get_dtype(name) + indexing = self.indexing( + index, + block_ptr=True, + tma_compatibility_checker=self.tma_compatibility_checker_cls( + kernel=self, + dtype=dtype, + for_store=True, + force=False, + ), + ) + self.inside_reduction = True + var = self.args.output(name) + + exit_stack = contextlib.ExitStack() + if self.cooperative_reduction: + exit_stack.enter_context( + self.guard_cooperative_store(name, self.post_loop_store) + ) + + if isinstance(indexing, (BlockPtrOptions, TensorDescriptorOptions)): + self.post_loop_store.writeline( + DeferredLine( + name, + self.codegen_block_ptr_store_line( + name, + indexing, + indexing.format(var), + value, + f", boundary_check={indexing.boundary_check()!r}", + ), + ) + ) + else: + assert isinstance(indexing, IndexingOptions) + + indexing_str = indexing.index_str + if ( + is_sympy_integer_like(index) + and value.shape is not None + and not all(str(x) == "1" for x in value.shape) + ): + value_shape = ", ".join(map(str, value.shape)) + indexing_str += f".broadcast_to({value_shape})" + + self.post_loop_store.writeline( + DeferredLine( + name, + f"tl.store({var} + ({indexing_str}), {value}, {indexing.mask_str})", + ) + ) + + exit_stack.close() + + def _lift_helper( + self, fn, values: tuple[CSEVariable, ...], dtypes: tuple[torch.dtype, ...] + ) -> str: + # Lift IR function for scan operations into a triton function + # in the global namespace + helper = IndentedBuffer() + helper.writeline("@triton.jit") + cse = CSE() + + args = [ + tuple( + cse.namedvar(f"arg{i}_{n}", dtype=dtype, shape=value.shape) + for n, (value, dtype) in enumerate(zip(values, dtypes)) + ) + for i in range(2) + ] + signature = ", ".join(str(x) for x in itertools.chain.from_iterable(args)) + helper.writeline(f"def {{name}}({signature}):") + + overrides = TritonOverrides() + + # Build a name that changes depending on fn to workaround a triton bug + # where the combine_fn to reduce and scan is not hashed, and so different + # scan ops may collide in the triton cache. + # This is fixed with the latest triton pin, but not the triton-rocm pin. + helper_name = "_triton_helper_fn" + + from torch._inductor.dtype_propagation import DtypePropagationOpsHandler + from torch._inductor.shape_propagation import ShapePropagationOpsHandler + + shape_handler = ShapePropagationOpsHandler() + dtype_handler = DtypePropagationOpsHandler() + + class CSEProxy(DefaultHandler): + def _default( + self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any] + ) -> Any: + nonlocal helper_name + helper_name += f"_{name}" + + output_dtype = getattr( + dtype_handler, + name, + )(*args, **kwargs) + + output_shape = getattr( + shape_handler, + name, + )(*args, **kwargs) + + return cse.generate( + helper, + getattr(overrides, name)(*args, **kwargs), + dtype=output_dtype, + shape=output_shape, + ) + + with helper.indent(), V.set_ops_handler(CSEProxy()): + outputs = fn(*args) + outputs = ", ".join(str(output) for output in outputs) + helper.writeline(f"return {outputs}") + + return self.helper_functions.add(helper.getvalue(), base_name=helper_name) + + def scan( + self, + dtypes: tuple[torch.dtype, ...], + combine_fn: Callable[ + [tuple[CSEVariable, ...], tuple[CSEVariable, ...]], tuple[CSEVariable, ...] + ], + values: tuple[CSEVariable, ...], + ) -> tuple[CSEVariable, ...]: + """ + Perform an associative scan on 'values'. + """ + assert self.inside_reduction + assert not self.cooperative_reduction, "TODO" + masks = OrderedSet(f"{tree.prefix}mask" for tree in self.range_trees) + self.filter_masks(masks) + masks = sorted(masks) + assert not self._load_mask, "ops.scan not supported inside ops.masked" + + broadcasted_values = [] + accumulators = [] + + dtypes = tuple(upcast_compute_type(dtype) for dtype in dtypes) + cse_compute = functools.partial(self.cse.generate, self.compute) + combine_helper_fn = self._lift_helper(combine_fn, values, dtypes) + dim = self.triton_tensor_ndim() - self.num_reduction_dims + + for value, dtype in zip(values, dtypes): + value_dtype = self.cse.generate( + self.compute, + f"{value}.to({triton_compute_type(dtype)})", + dtype=dtype, + shape=value.shape, + ) + value = self.cse.generate( + self.compute, + f"tl.broadcast_to({value_dtype}, {self.dense_size_str()})", + dtype=dtype, + shape=tuple(self.dense_size_list()), + ) + broadcasted_values.append(value) + + acc_type = triton_acc_type(dtype) + + if not self.persistent_reduction: + reduced_size = self.dense_size_list() + reduced_size[-1] = "1" + accumulator = self.cse.newvar(dtype=dtype, shape=reduced_size) + reduced_size_str = f"[{', '.join(reduced_size)}]" + + default = "float('nan')" if dtype.is_floating_point else "-1" + self.body.writeline( + f"{accumulator} = tl.full({reduced_size_str}, {default}, {acc_type})" + ) + + accumulators.append(accumulator) + + def csv(values): + return " ".join(f"{value}," for value in values) + + def cse_multiple(line, values, masks, dtypes): + n = len(values) + cache_keys = [f"{line}, {i}, {masks}" for i in range(n)] + if all(self.cse.contains(cache_key) for cache_key in cache_keys): + return [self.cse.get(cache_key) for cache_key in cache_keys] + result_vars = [ + self.cse.newvar(dtype=dtype, shape=value.shape) + for (dtype, value) in zip(dtypes, values) + ] + self.compute.writeline( + f"{csv(result_vars)} = {line}", + ) + for result_var, cache_key in zip(result_vars, cache_keys): + if masks: + result_var.mask_vars = masks # type: ignore[attr-defined] + self.cse.put(cache_key, result_var) + return tuple(result_vars) + + partial_scan_vars = cse_multiple( + f"tl.associative_scan(({csv(broadcasted_values)}), {dim}, {combine_helper_fn})", + broadcasted_values, + masks, + dtypes, + ) + + if not self.persistent_reduction: + # tl.reduce doesn't work for non-commutative operators, so instead + # of repeating the scan op as a reduction, we use sum to select the + # last scan value + def _partial_scan_shape(var): + if var.shape is None: + return None + else: + shape = list(var.shape) + shape[-1] = "1" + return shape + + partial_reduce_vars = [ + cse_compute( + f"triton_helpers.select_one(({partial_scan_var}), rbase == (RBLOCK - 1), dim=-1, keep_dims=True)", + dtype=upcast_compute_type(partial_scan_var.dtype), + shape=_partial_scan_shape(partial_scan_var), + ) + for partial_scan_var in partial_scan_vars + ] + accs_next = combine_fn(tuple(accumulators), tuple(partial_reduce_vars)) + full_scan_vars = combine_fn(tuple(accumulators), partial_scan_vars) + result_vars = [ + cse_compute( + f"tl.where(roffset > 0, {full_scan}, {partial_scan})", + dtype=partial_scan.dtype, + shape=partial_scan.shape, + ) + for full_scan, partial_scan in zip(full_scan_vars, partial_scan_vars) + ] + for acc_next, accumulator, partial_reduce in zip( + accs_next, accumulators, partial_reduce_vars + ): + self.compute.writeline( + f"{accumulator} = tl.where(roffset > 0, {acc_next}, {partial_reduce})" + ) + else: + result_vars = partial_scan_vars + + for result_var in result_vars: + assert isinstance(result_var, TritonCSEVariable) + result_var.mask_vars = OrderedSet(masks) + + return tuple(result_vars) + + def sort( + self, + dtypes: tuple[torch.dtype, ...], + values: tuple[CSEVariable, ...], + stable: bool, + descending: bool, + ) -> tuple[CSEVariable, ...]: + assert self.inside_reduction + assert not self.cooperative_reduction, "TODO" + masks = OrderedSet(f"{tree.prefix}mask" for tree in self.range_trees) + self.filter_masks(masks) + masks = sorted(masks) + assert not self._load_mask, "ops.sort not supported inside ops.masked" + assert self.persistent_reduction, ( + "ops.sort is only supported in persistent reductions" + ) + + cse_compute = functools.partial(self.cse.generate, self.compute) + dim = self.triton_tensor_ndim() - self.num_reduction_dims + + dtypes = tuple(upcast_compute_type(dtype) for dtype in dtypes) + assert len(dtypes) == len(values) + broadcasted_values = [ + cse_compute( + f"tl.broadcast_to({value}, {self.dense_size_str()})", + dtype=dtypes[i], + shape=tuple(self.dense_size_list()), + ) + for i, value in enumerate(values) + ] + + def csv(values): + return " ".join(f"{value}," for value in values) + + def cse_multiple(line, broadcasted_values, masks, dtypes): + n = len(broadcasted_values) + cache_keys = [f"{line}, {i}, {masks}" for i in range(n)] + if all(self.cse.contains(cache_key) for cache_key in cache_keys): + return [self.cse.get(cache_key) for cache_key in cache_keys] + result_vars = [ + self.cse.newvar(dtype=dtype, shape=value.shape) + for dtype, value in zip(dtypes, broadcasted_values) + ] # type: ignore[attr-defined] + self.compute.writeline( + f"{csv(result_vars)} = {line}", + ) + for result_var, cache_key in zip(result_vars, cache_keys): + if masks: + result_var.mask_vars = masks # type: ignore[attr-defined] + self.cse.put(cache_key, result_var) + return tuple(result_vars) + + assert self.range_trees[-1].is_reduction + rnumel = "None" if self._has_constant_mask(self.range_trees[-1]) else "rnumel" + + if len(values) == 2: + line = ( + f"triton_helpers.sort_with_index({broadcasted_values[0]}, {broadcasted_values[1]}," + f" {rnumel}, {dim}, stable={stable}, descending={descending})" + ) + result_vars = cse_multiple(line, broadcasted_values, masks, dtypes) + else: + raise AssertionError("Unhandled sort") + + for result_var, input_var in zip(result_vars, values): + result_var.mask_vars = masks # type: ignore[attr-defined] + result_var.bounds = input_var.bounds + + return tuple(result_vars) + + def codegen_prologue(self, code: IndentedBuffer): + """ + Generate the output from prologue. This should be + extracted from the subgraph, which is why this is + partitioned from codegen_body. + """ + if not self.prologue: + return + + code.splice(self.prologue) + self.prologue.clear() + self.prologue_cache.clear() + + def codegen_body(self): + """ + Concat output code from index_code, loads, compute, stores, + suffix into self.body. + + For pointwise kernels, this is called just once at the end. + + For reduction kernels, this generates a loop over the reduction + axis. + """ + if not ( + self.indexing_code + or self.loads + or self.stores + or self.compute + or self.post_loop_combine + or self.post_loop_store + ): + return + + loop_trees = [tree for tree in self.range_trees if tree.is_loop] + if self.mix_order_reduction: + assert self.persistent_reduction, ( + "Mix order reduction requires persistent reduction" + ) + accumname2var = {} + for idx, partial_accum in enumerate(self.saved_partial_accumulate): + reduction_type = partial_accum.reduction_type + default = ir.Reduction.default_accumulator(reduction_type, torch.float) + default = self._map_tuple_or_scalar(constant_repr, default) + name = f"accum{idx}" + self.body.writeline( + f"{name} = tl.full([R0_BLOCK], {default}, tl.float32)[None, :]" + ) + accumname2var[name] = self.cse.namedvar( + name, dtype=torch.float, shape=("1", "R0_BLOCK") + ) + self.body.writeline("split_size = min(RSPLIT_SIZE, xnumel - xoffset)") + self.body.writeline( + "for _ in tl.range(0, split_size, XBLOCK, num_stages=NUM_STAGES):" + ) + with self.body.indent(offset=1): + # generate xmask if it's not constant + if not self._has_constant_xmask(): + entry = self.range_trees[0] + assert entry.prefix == "x" + x = entry.prefix + self.body.writeline(f"{x}mask = {entry.name} < {x}numel") + self.body.splice(self.indexing_code) + self.body.writelines( + [ + "xindex += XBLOCK", + ] + ) + self.body.splice(self.loads) + self.body.splice(self.compute) + self.body.splice(self.stores) + self.body.splice(self.post_loop_store) + + # no need to sum if XBLOCK == 1, or does that matter? + for idx, partial_accum in enumerate(self.saved_partial_accumulate): + var = partial_accum.value + name = f"accum{idx}" + combine_fn = ir.get_reduction_combine_fn( + partial_accum.reduction_type, torch.float + ) + triton_reduction_function = get_triton_reduction_function( + partial_accum.reduction_type, + ) + newval = self.cse.generate( + self.body, + f"{triton_reduction_function}({var}, 0)", + dtype=var.dtype, + shape=("R0_BLOCK",), + ) + import unittest + + with unittest.mock.patch.object(self, "compute", self.body): + updated = combine_fn( + accumname2var[name], + newval, + ) + self.body.writeline(f"{name} = {updated}") + + for idx in range(len(self.saved_partial_accumulate)): + self.body.writeline( + f"tl.store(ws_ptr + (tl.program_id(0) + {idx} * tl.num_programs(0)) * r0_numel + r0_index, accum{idx}, r0_mask)" + ) + + elif self.inside_reduction and len(loop_trees) > 0: + # Write the loop headers. + for level, tree in enumerate(loop_trees): + with self.body.indent(offset=level): + prefix = tree.prefix + loop_start = "rsplit_start" if self.cooperative_reduction else "0" + loop_end = ( + "rsplit_end" if self.cooperative_reduction else f"{prefix}numel" + ) + self.body.writeline( + f"for {prefix}offset in range({loop_start}, {loop_end}, {prefix.upper()}BLOCK):" + ) + with self.body.indent(offset=level + 1): + self.iteration_ranges_codegen_header(tree, self.body) + + # The innermost loop performs the reduction. + with self.body.indent(offset=len(loop_trees)): + self.codegen_reduction_indices(self.body) + self.body.splice(self.indexing_code) + self.body.splice(self.loads) + self.body.splice(self.compute) + self.body.splice(self.stores) + + # Write loop suffixes. + for level, tree in reversed([*enumerate(loop_trees)]): + with self.body.indent(offset=level + 1): + # Advance pointers at the end of each loop. + for block_ptr, advancement in self.pointer_advancements[ + tree.symt + ].items(): + # Subtract any advancements made in the previous loop level. + if level < len(loop_trees) - 1: + prev_tree = loop_trees[level + 1] + prev_advancement = self.pointer_advancements[ + prev_tree.symt + ][block_ptr] + prev_block = TritonSymbols.get_block_size(prev_tree) + prev_num_iter = CeilDiv(prev_tree.numel, prev_block) + advancement = [ + cur - prev * prev_num_iter + for cur, prev in zip(advancement, prev_advancement) + ] + + self.body.writeline( + DeferredLine( + self.block_ptr_to_buffer[block_ptr], + f"{block_ptr} = tl.advance({block_ptr}, {V.kernel.index_to_str(advancement)})", + ) + ) + + # Invalidate any cache entries that came from inside the loop. + self.cse.invalidate(self.outside_loop_vars) + tree.cache_clear() + else: + self.body.splice(self.indexing_code) + self.body.splice(self.loads) + self.body.splice(self.compute) + self.body.splice(self.stores) + self.body.splice(self.post_loop_combine) + if self.cooperative_reduction and ( + self.post_loop_combine or self.post_loop_store + ): + sem_ptr = f"{self.semaphores_name} + tl.program_id(1)" + self.body.splice( + f""" + if HAS_RSPLIT: + triton_helpers.x_grid_barrier({sem_ptr}) + """, + strip=True, + ) + self.cooperative_reduction_workspace_cache.on_loop_end() + if not self.mix_order_reduction: + self.body.splice(self.post_loop_store) + self.indexing_code.clear() + self.loads.clear() + self.compute.clear() + self.stores.clear() + self.post_loop_combine.clear() + self.post_loop_store.clear() + + def kernel_benchmark_extra_args(self) -> list[str]: + args = [] + if self.need_numel_args(): + numel_args: list[sympy.Expr] = [] + self.add_numel_to_call_args("", numel_args, []) + for arg in numel_args: + if isinstance(arg, int): + args.append(str(arg)) + elif isinstance(arg, SymbolicCallArg): + hint = V.graph.sizevars.size_hint( + arg.inner_expr, + hint_override=self.hint_override, + fallback=config.unbacked_symint_fallback, + ) + args.append(str(hint)) + elif isinstance(arg, sympy.Expr): + hint = V.graph.sizevars.size_hint( + arg, + hint_override=self.hint_override, + fallback=config.unbacked_symint_fallback, + ) + args.append(str(hint)) + else: + raise ValueError(f"Unsupported numel argument type: {type(arg)}") + return args + + def codegen_kernel_benchmark(self, num_gb: Optional[float]) -> IndentedBuffer: + """ + Generates Python code for benchmarking this Triton kernel. + - Creates example inputs (random tensors, constants, sizes). + - Runs the kernel on the current GPU/stream. + - Prints runtime (ms) and throughput (GB/s) using `num_gb`. + Args: + num_gb (float): The number of gigabytes to use for throughput calculation. + Returns: + IndentedBuffer: A buffer containing the generated Python benchmark code. + """ + result = IndentedBuffer() + _argdefs, call_args, signature, _ = self.args.python_argdefs() + + result.writelines(["", "", "def get_args():"]) + with result.indent(): + name_cnt = itertools.count() + var_names = [] + for arg_name, arg_sig in zip(call_args, signature): + var_name = f"arg_{next(name_cnt)}" + buf = V.graph.try_get_buffer(arg_name) + if buf: + size = V.graph.sizevars.size_hints( + buf.get_size(), + hint_override=self.hint_override, + fallback=config.unbacked_symint_fallback, + ) + stride = V.graph.sizevars.size_hints( + buf.get_stride(), + hint_override=self.hint_override, + fallback=config.unbacked_symint_fallback, + ) + result.writeline( + f"{var_name} = rand_strided({size}, {stride}, device='{buf.get_device()}', dtype={buf.get_dtype()})" # noqa: B950 line too long + ) + elif arg_name in V.graph.constants: + # note that random seed is put in V.graph.constants + const_tensor = V.graph.constants[arg_name] + size = V.graph.sizevars.size_hints( + const_tensor.size(), + hint_override=self.hint_override, + fallback=config.unbacked_symint_fallback, + ) + stride = V.graph.sizevars.size_hints( + const_tensor.stride(), + hint_override=self.hint_override, + fallback=config.unbacked_symint_fallback, + ) + result.writeline( + f"{var_name} = rand_strided({size}, {stride}, device='{const_tensor.device}', dtype={const_tensor.dtype})" # type: ignore[arg-type] # noqa: B950 line too long + ) + elif isinstance(arg_sig, SizeArg): + symval_hint = V.graph.sizevars.size_hint( + arg_sig.expr, + hint_override=self.hint_override, + fallback=config.unbacked_symint_fallback, + ) + + # Force the seed_offset to be 0 so calls to the same kernel + # using different seed offset will have the same benchmark harness. + # We can dedup kernel definitions in this case. + if "seed_offset" in arg_sig.name: + symval_hint = 0 + result.writeline(f"{var_name} = {symval_hint}") + elif isinstance(arg_sig, WorkspaceArg): + device = V.graph.get_current_device_or_throw() + count = V.graph.sizevars.size_hint( + arg_sig.count, hint_override=self.hint_override + ) + result.writeline( + f"{var_name} = torch.zeros({count}, device='{device}', dtype={arg_sig.dtype})" + ) + else: + raise KeyError( + f"Don't find the buffer or const tensor for {arg_name}" + ) + var_names.append(var_name) + var_names.extend(self.kernel_benchmark_extra_args()) + result.writeline(f"return {', '.join(var_names)},") + + result.writelines(["\n", "\n", "def call(args):"]) + current_device = V.graph.get_current_device_or_throw() + index = current_device.index + with result.indent(): + result.writeline(f"with {V.graph.device_ops.device_guard(index)}:") + with result.indent(): + result.writeline( + V.graph.device_ops.set_device(index) + ) # no-op to ensure context + stream_name = f"stream{index}" + result.writeline(f"{stream_name} = get_raw_stream({index})") + result.writeline( + f"{str(Placeholder.KERNEL_NAME)}.run(*args, stream={stream_name})" + ) + + # benchmark all configs + result.writelines(["\n", "\n", "def benchmark_all_configs(args):"]) + with result.indent(): + result.writeline(f"with {V.graph.device_ops.device_guard(index)}:") + with result.indent(): + result.writeline( + V.graph.device_ops.set_device(index) + ) # no-op to ensure context + result.writeline( + f"return {str(Placeholder.KERNEL_NAME)}.benchmark_all_configs(*args)" + ) + + result.writelines(["\n", "\n", "if __name__ == '__main__':"]) + with result.indent(): + result.writeline( + "from torch._inductor.runtime.benchmarking import benchmarker" + ) + result.writeline("") + + result.writeline("args = get_args()") + result.writeline( + f"ms = benchmarker.benchmark(lambda: call(args), device={V.graph.get_current_device_or_throw().type}, rep=40)" # noqa: B950 line too long + ) + result.writeline(f"num_gb = {num_gb}") + result.writeline("gb_per_s = num_gb / (ms / 1e3)") + result.writeline( + 'print(f"{ms:.3f}ms {num_gb:.3f}GB {gb_per_s:.2f}GB/s")' + ) + + return result + + def imports_for_benchmark_kernel(self): + return textwrap.dedent( + """ + from torch._dynamo.testing import rand_strided + {} + import torch + """.format(V.graph.device_ops.import_get_raw_stream_as("get_raw_stream")) + ) + + def _get_heuristic(self): + if self.fixed_config: + return "fixed_config" + elif self.cooperative_reduction: + return "cooperative_reduction" + elif self.persistent_reduction: + assert self.inside_reduction + return "persistent_reduction" + elif self.inside_reduction: + return "reduction" + return "pointwise" + + @staticmethod + def inductor_meta_common(): + inductor_meta = { + "backend_hash": torch.utils._triton.triton_hash_with_backend(), + "assert_indirect_indexing": config.assert_indirect_indexing, + "autotune_local_cache": config.autotune_local_cache, + "autotune_pointwise": config.triton.autotune_pointwise, + "autotune_remote_cache": config.autotune_remote_cache, + "force_disable_caches": config.force_disable_caches, + "dynamic_scale_rblock": config.dynamic_scale_rblock, + "max_autotune": config.max_autotune, + "max_autotune_pointwise": config.max_autotune_pointwise, + "min_split_scan_rblock": config.triton.min_split_scan_rblock, + "spill_threshold": config.triton.spill_threshold, + "store_cubin": config.triton.store_cubin, + "deterministic": config.deterministic, + "force_filter_reduction_configs": config.test_configs.force_filter_reduction_configs, + } + + if config.write_are_deterministic_algorithms_enabled: + inductor_meta["are_deterministic_algorithms_enabled"] = ( + torch.are_deterministic_algorithms_enabled() + ) + + if torch.version.hip is not None: + inductor_meta["is_hip"] = True + if config.is_fbcode(): + inductor_meta["is_fbcode"] = True + if config.profile_bandwidth: + inductor_meta["profile_bandwidth"] = config.profile_bandwidth + inductor_meta["profile_bandwidth_regex"] = config.profile_bandwidth_regex + inductor_meta["profile_bandwidth_output"] = config.profile_bandwidth_output + inductor_meta["profile_bandwidth_with_do_bench_using_profiling"] = ( + config.profile_bandwidth_with_do_bench_using_profiling + ) + if config.coordinate_descent_tuning: + inductor_meta["coordinate_descent_tuning"] = ( + config.coordinate_descent_tuning + ) + inductor_meta["coordinate_descent_search_radius"] = ( + config.coordinate_descent_search_radius + ) + inductor_meta["coordinate_descent_check_all_directions"] = ( + config.coordinate_descent_check_all_directions + ) + return inductor_meta + + def codegen_kernel(self, name=None) -> str: + """ + Convert the TritonKernel from Inductor SIMD IR to triton code, including inductor triton heuristics, imports, + metadata, and benchmarking infra. + """ + + code = IndentedBuffer() + + size_hints = {} + for prefix, numel in self.numels.items(): + if prefix_is_reduction(prefix) and not self.inside_reduction: + continue + + numel_hint = V.graph.sizevars.symbolic_hint(numel) + if not isinstance(numel_hint, (int, sympy.Integer)): + # This default heuristic hint was picked carefully: it is + # large, to ensure that we don't shrink the block size (since + # if you don't have many elements, it'd be wasteful to pick a + # large block size). Since we don't know how many elements we + # might have, we should be OK with some inefficiency to make + # sure we handle the large case well. 8192 is the largest + # block size we support, so we pick that. + # + # If we have a better hint for unbacked SymInts (e.g., because + # a user told us, or we are tracking upper bounds) we could + # use that here. + size_hint = 8192 + else: + size_hint = next_power_of_2(int(numel_hint)) + size_hints[prefix] = size_hint + + if name is None: + code.splice(gen_common_triton_imports()) + device_type = V.graph.get_current_device_or_throw().type + if device_type == "cpu": + code.splice("triton_helpers.set_driver_to_cpu()") + else: + code.splice("triton_helpers.set_driver_to_gpu()") + + if config.benchmark_kernel: + code.splice(self.imports_for_benchmark_kernel()) + + argdefs, _, signature, _ = self.args.python_argdefs() + # maps actual expression to SizeArg if it is in sizevars replacements + for i, arg in enumerate(signature): + if isinstance(arg, SizeArg): + # mypy is unhappy about the sympy.Expr + # type for the key of the dict below + symbol = cast(sympy.Symbol, arg.expr) + if symbol in V.graph.sizevars.inv_precomputed_replacements: + signature[i] = SizeArg( + arg.name, V.graph.sizevars.inv_precomputed_replacements[symbol] + ) + + mutated_args: OrderedSet[str] = OrderedSet() + for mutation in self.mutations: + if mutation in self.args.input_buffers: + mutated_args.add(self.args.input_buffers[mutation]) + if ( + mutation in self.args.inplace_buffers + and mutation not in V.graph.removed_buffers + and mutation not in self.removed_buffers + ): + mutated_args.add( + cast(InplacedBuffer, self.args.inplace_buffers[mutation]).inner_name + ) + if mutation in self.args.output_buffers: + mutation_arg = self.args.output_buffers[mutation] + assert not isinstance(mutation_arg, RemovedArg) + mutated_args.add(mutation_arg) + + # Note: [Workspace Mutation] + # workspace arguments are mutated, but are not marked as mutations in self.mutations + # because their buffers are added during codegen, and aren't tracked during + # lowering/scheduling. So we add them as mutated_args explicitly below. + # + # In the logic below, we only mark the workspaces a mutated if they are marked with + # zero_fill: that's because, if we don't expect the buffer to be pre-filled with + # zeros, then, although we still mutate the data, we don't care about those + # mutations because we don't make any assumptions about the contents of the + # workspace buffer. Similarly, ZERO_PER_GRAPH requires the kernel to return + # the buffer back to its original state. + for argname, arg in zip(argdefs, signature): + if ( + isinstance(arg, WorkspaceArg) + and arg.zero_mode == WorkspaceZeroMode.ZERO_ON_CALL + ): + mutated_args.add(argname.name) + + mutated_args = sorted(mutated_args) + + for tree in self.active_range_trees(): + sizearg = SizeArg(f"{tree.prefix}numel", tree.numel) + signature.append(sizearg) + argdefs.append(ArgName(sizearg.name)) + # constexpr version causes issues, see + # https://github.com/pytorch/torchdynamo/pull/1362 + # triton_meta["constants"][len(argdefs)] = V.graph.sizevars.size_hint( + # tree.numel + # ) + # argdefs.append(f"{tree.prefix}numel: tl.constexpr") + + def add_constexpr_arg(arg_name): + # new versions (but not old versions) of Triton need constexprs included in the signature + if triton_version_uses_attrs_dict(): + signature.append(ConstexprArg(arg_name)) + argdefs.append(ArgName(arg_name, is_constexpr=True)) + + for tree in self.range_trees: + if tree.is_reduction and self.persistent_reduction: + # Rn_BLOCK for persistent_reduction is defined in codegen_static_numels + continue + if tree.tensor_dim is None: + continue + + add_constexpr_arg(f"{tree.prefix.upper()}BLOCK") + + if self.cooperative_reduction: + add_constexpr_arg("RSPLIT") + + if self.mix_order_reduction: + add_constexpr_arg("RSPLIT_SIZE") + add_constexpr_arg("NUM_STAGES") + + triton_meta_signature = signature_to_meta( + signature, size_dtype=self.index_dtype, argdefs=argdefs + ) + triton_meta: dict[str, Any] = { + "signature": triton_meta_signature, + "device": DeviceProperties.create(V.graph.get_current_device_or_throw()), + "constants": {}, + "native_matmul": ( + torch._inductor.config.triton.native_matmul + and ("tl.dot" in str(self.body) or "tl.dot" in str(self.compute)) + ), + } + + # Skip memory optimization for forward of the training loop where we expect + # every new node will increase the peak memory and our greedy approach would + # introduce a lot of unnecessary cpu copies. + optimize_mem = V.graph.is_inference or V.graph.is_backward + + inductor_meta = { + "grid_type": self._get_grid_type().__name__, + # Triton will not accept an OrderedSet for autotune_hints + "autotune_hints": set(self.autotune_hints), # noqa: set_linter + "kernel_name": str(Placeholder.DESCRIPTIVE_NAME), + "mutated_arg_names": mutated_args, + "optimize_mem": optimize_mem, + "no_x_dim": self.no_x_dim, + "atomic_add_found": self.atomic_add_found, + "num_load": self.num_load, + "num_store": self.num_store, + "num_reduction": self.num_reduction, + **self.inductor_meta_common(), + } + + if self.mix_order_reduction: + inductor_meta["RSPLIT_SIZE"] = self.rsplit_size + + if config.deterministic or config.test_configs.force_filter_reduction_configs: + inductor_meta["has_loadstore_with_contiguous_rdim"] = ( + self.has_load_with_contiguous_rdim + or self.has_store_with_contiguous_rdim + ) + + # Bail on 3d tiling, which has more complicated coalesce patterns + looped_red = V.kernel.features.is_reduction() and not self.persistent_reduction + tiling_scores = self.tiling_scores + two_d_red = len(self.tiling) == 2 + if looped_red and two_d_red: + memory_stats = self.features.memory_stats(self.tiling) + dim_stats = memory_stats.persistent.memory.dim[0] + mem_ops_per_thread = dim_stats.count_per_thread + + if ( + tiling_scores is not None + and "x" in tiling_scores + and "r0_" in tiling_scores + ): + # large rblock inhibits xblock size, dont attempt if there is a decent amount of + # reads coalesced by xblock + r_coalesce_ratio = tiling_scores["r0_"] / max(tiling_scores["x"], 1) + contiguous_red = r_coalesce_ratio >= 8.0 + else: + from torch._inductor.runtime.hints import ReductionHint + + contiguous_red = ( + self.features.get_reduction_hint() == ReductionHint.INNER + ) + + looped_mem = memory_stats.looped.memory.bytes + persistent_mem = memory_stats.persistent.memory.bytes + # check that we save significant memory by doing persistent + saved_bytes_ratio = V.graph.sizevars.size_hint( + looped_mem, fallback=config.unbacked_symint_fallback + ) / max( + V.graph.sizevars.size_hint( + persistent_mem, fallback=config.unbacked_symint_fallback + ), + 1, + ) + + # TODO - rnumel should be reasonably close to power of 2 + if ( + # significant memory bandwidth savings + saved_bytes_ratio >= 1.3 + and contiguous_red + # TODO - need more detailed register analysis + and V.graph.sizevars.statically_known_leq( + self.features.reduction_numel, 32768 + ) + # We will already generate a persistent config in this case + and V.graph.sizevars.statically_known_gt( + self.features.reduction_numel, 2048 + ) + and mem_ops_per_thread <= 10 + ): + inductor_meta["add_persistent_rblock"] = True + + if self.tiling_scores: + inductor_meta["tiling_scores"] = self.tiling_scores + + if self.tma_min_block_sizes: + inductor_meta["tma_min_block_sizes"] = self.tma_min_block_sizes + + if self.cooperative_reduction: + inductor_meta["persistent_reduction"] = self.persistent_reduction + + num_gb = None + if config.benchmark_kernel or config.profile_bandwidth: + num_gb = self.estimate_kernel_num_bytes() / 1e9 + if num_gb is not None: + inductor_meta["kernel_num_gb"] = num_gb + if config.benchmark_kernel: + flops = self.estimate_flops() + if flops is not None: + inductor_meta["kernel_flop"] = flops + + triton_meta["configs"] = [config_of(signature)] + + if enable_pdl_codegen(): + triton_meta["launch_pdl"] = True + + # Triton compiler includes equal_to_1 args into constants even + # when they are not constexpr. otherwise there may be a segfault + # during launching the Inductor-compiled Triton kernel. + # https://github.com/pytorch/pytorch/issues/120478#issuecomment-1962822307 + # https://github.com/triton-lang/triton/blob/231efe9ed2d200be0f69a07c298e4342b08efe3d/python/triton/runtime/jit.py#L384 + for arg_num in equal_1_arg_indices(signature): # type: ignore[index] + triton_meta["constants"][signature[arg_num].name] = 1 # type: ignore[index,union-attr] + triton_meta["enable_fp_fusion"] = not config.emulate_precision_casts + + self.triton_meta = triton_meta + + self.codegen_prologue(self.body) + self.codegen_body() + + for helper in self.helper_functions: + code.writeline("") + code.splice(helper) + + if self.fixed_config: + heuristics_line = f""" + @triton_heuristics.{self._get_heuristic()}( + config={self.fixed_config.config!r}, + filename=__file__, + triton_meta={triton_meta!r}, + inductor_meta={inductor_meta!r} + ) + @triton.jit + """ + elif self.inside_reduction: + reduction_hint = self.features.get_reduction_hint() + heuristics_line = f""" + @triton_heuristics.{self._get_heuristic()}( + size_hints={size_hints!r}, + reduction_hint={reduction_hint}, + filename=__file__, + triton_meta={triton_meta!r}, + inductor_meta={inductor_meta!r} + ) + @triton.jit + """ + else: + tile_hint = "" + if len(size_hints) == 2: + if ( + len(non_constexpr_signature(signature)) == 4 + ): # input, output and 2 args + tile_hint = "tile_hint=TileHint.SQUARE," + else: + tile_hint = "tile_hint=TileHint.DEFAULT," + heuristics_line = f""" + @triton_heuristics.{self._get_heuristic()}( + size_hints={size_hints!r}, {tile_hint} + filename=__file__, + triton_meta={triton_meta!r}, + inductor_meta={inductor_meta!r}, + min_elem_per_thread={self.min_elem_per_thread} + ) + @triton.jit + """ + code.splice(heuristics_line) + code.writeline( + f"def {name or str(Placeholder.KERNEL_NAME)}({', '.join(x.full_name() for x in argdefs)}):" + ) + with code.indent(): + self.codegen_static_numels(code) + for old, new in self.args.aliases(): + code.writeline(f"{old} = {new}") + code.splice(self.body) + + if config.benchmark_kernel: + code.splice(self.codegen_kernel_benchmark(num_gb)) + + return code.getvalue() + + @staticmethod + def _get_persistent_RBLOCK(rnumel): + rnumel = V.graph.sizevars.simplify(rnumel) + if isinstance(rnumel, (sympy.Integer, int)): + val = int(rnumel) + val = next_power_of_2(val) + else: + val = 2 + while not V.graph.sizevars.statically_known_leq(rnumel, val): + if val > 16 * 1024: + raise ValueError(f"Failed to find static RBLOCK for {rnumel}") + val *= 2 + + return val + + return val + + @staticmethod + def has_persistent_RBLOCK(rnumel): + try: + TritonKernel._get_persistent_RBLOCK(rnumel) + return True + except ValueError: + return False + + def codegen_static_numels(self, code): + """ + We get a small speedup from hard coding numels if they are static. + + This code stomps on the passed-in values by writing an constant to the top of the kernel. + + In a kernel like: + def KERNEL_NAME(in_ptr0, in_ptr1, out_ptr2, xnumel, r0_numel, XBLOCK : tl.constexpr, R0_BLOCK : tl.constexpr): + + We would add + xnumel = 4096 + r0_numel = 768 + + After the signature, before the kernel code, if we decided to make these static. As its hardcoded, it becomes + a better signal to triton on how to unroll and do some static indexing. So, it's not so much that downstream + knows that its a static numel, as that you just plop a constant into the kernel. + """ + + def is_static_integer(expr: sympy.Expr) -> bool: + return isinstance(expr, (sympy.Integer, int)) + + for tree in self.range_trees: + if not tree.is_reduction or self.inside_reduction: + simplified_tree_numel = V.graph.sizevars.simplify(tree.numel) + if is_static_integer(simplified_tree_numel): + code.writeline(f"{tree.prefix}numel = {int(simplified_tree_numel)}") + + if tree.is_reduction and self.persistent_reduction: + if self.cooperative_reduction: + numel = self.kexpr(self.rename_indexing(tree.numel)) + val = f"triton_helpers.constexpr_next_power_of_2(({numel} + RSPLIT - 1) // RSPLIT)" + else: + val = self._get_persistent_RBLOCK(tree.numel) + if self.is_native_matmul: + # tl.dot only supports shapes >= 16 + val = max(val, 16) + + code.writeline(f"{tree.prefix.upper()}BLOCK: tl.constexpr = {val}") + + if tree.prefix == "x" and self.no_x_dim: + code.writeline("XBLOCK: tl.constexpr = 1") + + def _get_grid_type(self) -> type[triton_heuristics.GridExpr]: + n = sum([int(not tree.is_reduction) for tree in self.range_trees]) + if self.mix_order_reduction: + assert n == 1 + return triton_heuristics.MixOrderReductionGrid + elif self.cooperative_reduction: + assert n == 1 + return triton_heuristics.CooperativeReductionGrid + elif n == 1: + return triton_heuristics.Grid1D + elif n == 2: + if any(map(self.needs_yz_grid_overflow, self.range_trees)): + return triton_heuristics.Grid2DWithYZOverflow + return triton_heuristics.Grid2D + elif n == 3: + return triton_heuristics.Grid3D + raise ValueError(f"Unsupported number of dimensions: {n}") + + def add_numel_to_call_args(self, name, call_args, arg_types): + # TODO(jansel): if there are constants, we shouldn't bother passing them as args + for tree in self.range_trees: + if isinstance(tree.numel, (sympy.Integer, sympy.Symbol)): + expr = tree.numel + else: + expr = V.graph.wrapper_code.generate_numel_expr(name, tree) + + if not tree.is_reduction or self.inside_reduction: + call_args.append(expr) + arg_types.append(type(expr)) + + def call_kernel( + self, name: str, node: Optional[IRNode] = None, deallocate_ws: bool = True + ): + wrapper = V.graph.wrapper_code + wrapper.write_triton_header_once() + _, call_args, _, arg_types = self.args.python_argdefs() + self.add_numel_to_call_args(name, call_args, arg_types) + + for ws in self.args.workspace_args: + wrapper.generate_workspace_allocation(ws) + + wrapper.generate_kernel_call( + name, + call_args, + triton=True, + arg_types=arg_types, + triton_meta=self.triton_meta, + ) + + if deallocate_ws: + self.deallocate_workspaces() + + def codegen_nan_check(self) -> None: + wrapper = V.graph.wrapper_code + _, call_args, arg_signatures, _ = self.args.python_argdefs() + for arg, arg_signature in zip(call_args, arg_signatures): + if isinstance(arg_signature, TensorArg): + if V.graph.cpp_wrapper: + wrapper.writeline( + f'AOTI_TORCH_ERROR_CODE_CHECK(aoti_torch_check_inf_and_nan("{arg}", {arg}));' + ) + else: + line = f"assert not {arg}.isnan().any().item()" + wrapper.writeline(line) + line = f"assert not {arg}.isinf().any().item()" + wrapper.writeline(line) + + def create_cse_var(self, *args, **kwargs) -> TritonCSEVariable: + return TritonCSEVariable(*args, **kwargs) + + def codegen_iteration_ranges_entry(self, entry: IterationRangesEntry): + line = f"{entry.name} = {self.kexpr(self.rename_indexing(entry.expr))}" + + # mix order reduction introduces an extra loop across the x + # dimension + if entry.root.is_loop or (self.mix_order_reduction and entry.prefix == "x"): + self.indexing_code.writeline(line) + else: + # lift non-reduction stores outside loop + self.body.writeline(line) + + def iteration_ranges_ranges_code(self, entry: IterationRangesRoot) -> str: + assert entry.tensor_dim is not None + size = self.indexing_size_str(entry.tensor_dim) + index_dtype = self.index_dtype + suffix = f".to({index_dtype})" if index_dtype != "tl.int32" else "" + if ( + self.cooperative_reduction + and self.persistent_reduction + and entry.is_reduction + ): + suffix = f"{suffix} + rsplit_start" + return f"tl.arange(0, {entry.prefix.upper()}BLOCK){size}{suffix}" + + def iteration_ranges_scalar_code( + self, entry: IterationRangesRoot, value: Any + ) -> str: + index_dtype = self.index_dtype + ndim = self.triton_tensor_ndim() + size = [1] * ndim + return f"tl.full({size}, {value}, {index_dtype})" + + def iteration_ranges_get_pid(self, entry: IterationRangesRoot) -> str: + assert entry.grid_dim is not None + key = f"tl.program_id({entry.grid_dim})" + # y_grid has a limit, so express it in terms of y and z in case of overflow. + # z grid is only exercised when max_tiles == 3 (off by default). + if self.needs_yz_grid_overflow(entry): + # For ynumel larger than max_ygrid, we need to use zdim. + # For each z dimension, there are tl.num_programs(1) yblocks which is passed by grad(x,y,z). + # So, we need to add tl.program_id(z) * tl.num_programs(y) *YBLOCK to get the correct yoffset. + key = f"({key} + tl.program_id({entry.grid_dim + 1}) * tl.num_programs({entry.grid_dim}))" + pid = entry.pid_cache.get(key, key) + if self.index_dtype != "tl.int32": + return f"{pid}.to({self.index_dtype})" + return pid + + def needs_yz_grid_overflow(self, entry: IterationRangesRoot) -> bool: + return ( + entry.grid_dim == 1 + and not entry.has_zdim + and not self.cooperative_reduction + and not V.graph.sizevars.statically_known_leq(entry.numel, get_max_y_grid()) + ) + + def max_block(self, prefix: str) -> int: + if self.fixed_config: + return self.fixed_config[f"{prefix.upper()}BLOCK"] + return TRITON_MAX_BLOCK[prefix.upper()] + + def _has_constant_mask(self, tree: IterationRangesRoot) -> bool: + if self.is_native_matmul: + # tl.dot requires the shape to be >= 16, + # so when matmul shape is smaller than 16, we always keep the mask. + if V.graph.sizevars.statically_known_lt(tree.numel, 16): + return False + + if not self.optimize_mask: + return False + + if self.fixed_config and f"{tree.prefix.upper()}BLOCK" in self.fixed_config: + if self.fixed_config[f"{tree.prefix.upper()}BLOCK"] == 1: + return True + else: + if V.graph.sizevars.statically_known_equals(tree.numel, 1): + return True + + # Masks are superfluous if numel is a multiple of BLOCK + # (We use the fact that BLOCK is required by triton to be a power of 2) + if tree.is_reduction and self.persistent_reduction: + max_block = self._get_persistent_RBLOCK(tree.numel) + elif tree.prefix == "x" and self.no_x_dim: + max_block = 1 + else: + max_block = self.max_block(tree.prefix) + + if tree.is_reduction and self.cooperative_reduction: + max_block = max_block * self.max_rsplit() + + # [Note: Constant mask optimisation] + # Optional optimization: if block divides numel exactly, we will + # never need to do a masked load to handle stragglers at the end. + # If this tree is for the y dimension, we should only use a constant + # mask if it can be guaranteed that: + # 1. (ynumel / YBLOCK) < max_ygrid or + # 2. (ynumel / YBLOCK) % max_ygrid == 0 + # Because YBLOCK is not constant, use a conservative heuristic: + # only use a constant mask if ynumel < max_ygrid. + # It's faster to avoid masking at all. But it is sound to always + # mask. + if V.graph.sizevars.statically_known_multiple_of(tree.numel, max_block): + return ( + tree.grid_dim != 1 + or tree.has_zdim + or V.graph.sizevars.statically_known_leq(tree.numel, get_max_y_grid()) + ) + + return False + + def _has_constant_xmask(self) -> bool: + xtree = self.range_trees[0] + assert xtree.prefix == "x" + return self._has_constant_mask(xtree) + + def filter_masks(self, mask_vars: OrderedSet[str]) -> None: + for tree in self.range_trees: + if self._has_constant_mask(tree): + mask_vars.discard(f"{tree.prefix}mask") + + # can be added as an override_mask + mask_vars.discard("None") + + @cache_on_self + def get_reduction_prefixes(self) -> list[str]: + return [ + prefix_str[symt] + for symt in list(TritonSymbols.reduction_types)[: self.num_reduction_dims] + ] + + def codegen_reduction_numels(self, buffer: IndentedBuffer) -> None: + """ + Generates code that flattens ND reduction numels, block sizes, etc. into 1D. + """ + # rnumel = r0_numel * ... * r(n-1)_numel + reduction_trees = [tree for tree in self.range_trees if tree.is_reduction] + rnumel = " * ".join(sorted(f"{tree.prefix}numel" for tree in reduction_trees)) + buffer.splice(f"rnumel = {self.kexpr(rnumel)}") + + # RBLOCK = R0_BLOCK * ... * R(N-1)_BLOCK + rn_blocks = [ + TritonSymbols.block_sizes[tree.symt] + for tree in self.range_trees + if tree.is_reduction + ] + rblock = sympy_product(rn_blocks) + buffer.splice(f"RBLOCK: tl.constexpr = {self.kexpr(rblock)}") + + def _get_reduction_symbols(self, suffix: str, **kwargs) -> list[sympy.Symbol]: + """ + Helper to initialize symbols like rn_numel, rn_base, etc. + """ + rn_prefixes = self.get_reduction_prefixes() + return [sympy.Symbol(f"{prefix}{suffix}", **kwargs) for prefix in rn_prefixes] + + @cache_on_self + def _get_reduction_index_coeffs(self) -> list[sympy.Expr]: + """ + Compute coefficients to convert ND reduction indices to linear indices. + For example: + rindex = r0_index * r1_numel * ... * rn_numel + ... + rn_index. + """ + rn_prefixes = self.get_reduction_prefixes() + rn_numels = self._get_reduction_symbols("numel", integer=True, positive=True) + return [ + sympy_product(rn_numels[idx + 1 :]) for idx in range(len(rn_prefixes) - 1) + ] + [sympy.Integer(1)] + + def _flatten_reduction_indices(self, multi_inds: list[sympy.Expr]) -> sympy.Expr: + """ + Compute linear reduction indices from N dimensional ones. + """ + coeffs = self._get_reduction_index_coeffs() + return sympy_dot(coeffs, multi_inds) + + def codegen_reduction_indices(self, buffer: IndentedBuffer) -> None: + """ + Generates code that converts ND reduction indices into linear indices. + """ + # Gather relevant numels, indices, etc. + rn_offsets = self._get_reduction_symbols( + "offset", integer=True, nonnegative=True + ) + rn_inds = self._get_reduction_symbols("index", integer=True, nonnegative=True) + + # Compute roffset and rindex. + roffset = self._flatten_reduction_indices(rn_offsets) + buffer.splice(f"roffset = {self.index_to_str(roffset)}") + rindex = self._flatten_reduction_indices(rn_inds) + buffer.splice(f"rindex = {self.index_to_str(rindex)}") + + def iteration_ranges_codegen_header( + self, entry: IterationRangesRoot, code: IndentedBuffer + ) -> None: + x = entry.prefix + if entry.is_loop: + code.writeline(f"{entry.name} = {x}offset + {x}base") + elif entry.grid_dim is None: + # no need to "{x}offset = " + code.writeline(f"{entry.name} = {self.iteration_ranges_ranges_code(entry)}") + code.writeline(f"{x}offset = 0") + else: + if entry.tensor_dim is not None: + line = f"{x}offset + {self.iteration_ranges_ranges_code(entry)}" + else: + line = self.iteration_ranges_scalar_code(entry, f"{x}offset") + + block_size = ( + f"{x.upper()}BLOCK" if not self.mix_order_reduction else "RSPLIT_SIZE" + ) + code.writelines( + [ + f"{x}offset = {self.iteration_ranges_get_pid(entry)} * {block_size}", + f"{entry.name} = {line}", + ] + ) + if self._has_constant_mask(entry): + code.writeline(self.create_constant_mask(entry)) + elif not (x == "x" and self.mix_order_reduction): + # mix order reduction should generate xmask inside the loop + code.writeline(f"{x}mask = {entry.name} < {x}numel") + + +class TritonScheduling(SIMDScheduling): + kernel_type: type[Any] = TritonKernel + backend_features = OrderedSet( + [ + BackendFeature.FOREACH, + BackendFeature.BUCKETIZE, + BackendFeature.INPLACE_BUFFERS, + BackendFeature.MASKED_SCATTER_WITH_INDEX, + BackendFeature.SCAN, + BackendFeature.SORT, + BackendFeature.TRITON_TEMPLATES, + BackendFeature.TUPLE_REDUCTION, + ] + ) + + def __init__(self, scheduler: Optional[Scheduler]) -> None: + super().__init__(scheduler) + if scheduler is None or not hasattr(scheduler, "nodes"): + return + for node in scheduler.nodes: + if isinstance(node, (SchedulerNode, FusedSchedulerNode)): + node.debug_device_str = debug_triton_code + + @classmethod + def get_backend_features(cls, device: torch.device): + if ( + config.triton.cooperative_reductions + or config.triton.force_cooperative_reductions + ): + return OrderedSet( + [*cls.backend_features, BackendFeature.REDUCE_TO_SINGLE_ELEMENT] + ) + return cls.backend_features + + def codegen_comment(self, node_schedule, kernel_name=None): + wrapper = V.graph.wrapper_code + origins, _detailed_origins = get_kernel_metadata(node_schedule, wrapper) + if origins: + wrapper.make_comment(origins) + + if config.debug_fusion: + from torch._inductor.scheduler import ( + BaseSchedulerNode, + ForeachKernelSchedulerNode, + ) + + if not any( + isinstance(n, ForeachKernelSchedulerNode) for n in node_schedule + ): + # We probably should look what are the nodes inside a foreach + # schedule node + node_names = [ + n.get_name() + for n in node_schedule + if isinstance(n, BaseSchedulerNode) + ] + wrapper.make_comment( + f"{wrapper.comment} Fused node name list: {', '.join(node_names)}" + ) + + if kernel_name: + debug_handle = set_kernel_post_grad_provenance_tracing( + node_schedule, # type: ignore[arg-type] + kernel_name, + ) + wrapper.write_provenance_debug_handle(kernel_name, debug_handle) + + def define_kernel(self, src_code, node_schedule, kernel): + wrapper = V.graph.wrapper_code + if src_code in wrapper.src_to_kernel: + kernel_name = wrapper.src_to_kernel[src_code] + else: + fused_name = ( + get_fused_kernel_name(node_schedule, config.triton.descriptive_names) + if config.triton.descriptive_names + else "" + ) + kernel_category = get_kernel_category_by_source_code(src_code)[:3] + kernel_name = "_".join( + ["triton", kernel_category, fused_name, wrapper.next_kernel_suffix()] + ) + if config.aot_inductor.model_name_for_generated_files: + # When AOTI compiles multiple submodules, we need to use the model name to + # distinguish kernel related symbols. + kernel_name = f"{config.aot_inductor.model_name_for_generated_files}_{kernel_name}" + + # use the original src_code as the key + wrapper.src_to_kernel[src_code] = kernel_name + subs_name = kernel_name if config.triton.unique_kernel_names else "triton_" + + # DESCRIPTIVE_NAME is used for profiling purposes; it shows the full kernel name + # even when unique_kernel_names is turned off. Meanwhile, KERNEL_NAME is sometimes set + # to "triton_" to maximize caching opportunities (when unique_kernel_names = False). + src_code = src_code.replace(str(Placeholder.DESCRIPTIVE_NAME), kernel_name) + src_code = src_code.replace(str(Placeholder.KERNEL_NAME), subs_name) + + # TODO(voz): Ostensibly, we should not need this. But there are cases where C++ codegen does + # not use BracesBuffer, so we have no good indicator of a C++ buffer atm. + src_code = src_code.replace("#pragma CMT", "#") + + _basename, _, kernel_path = get_path(code_hash(src_code.strip()), "py") + compile_wrapper = IndentedBuffer() + + if async_compile.use_process_pool(): + # The process pool is warm, we can shell out to workers right away. This + # allows us to save the result in async_compile.CompiledTritonKernels, + # so that the second time we call async_compile.triton, we do no work. + async_compile.triton(subs_name, src_code) + + compile_wrapper.writeline(f"async_compile.triton({subs_name!r}, '''") + + compile_wrapper.splice(src_code, strip=True) + current_device = V.graph.get_current_device_or_throw() + compile_wrapper.writeline(f"''', device_str='{current_device.type}')") + + metadata_comment = f"# kernel path: {kernel_path}" + origins, detailed_origins = get_kernel_metadata(node_schedule, wrapper) + metadata_comment += "\n" + origins + "\n" + detailed_origins + wrapper.define_kernel( + kernel_name, compile_wrapper.getvalue(), metadata_comment + ) + + # log kernel metadata for offline analysis. + # E.g. one can find all unaligned inner reduction and check if + # padding helps with the perf kernel by kernel. + if metrics.is_metric_table_enabled("kernel_metadata"): + metrics.log_kernel_metadata(kernel_name, kernel_path, src_code) + + return kernel_name + + def benchmark_fused_nodes(self, nodes, n_spills_threshold=8) -> tuple[float, str]: + """ + Benchmark fused list of nodes and return the execution time + in milliseconds on randomly generated inputs. + """ + src_code = self.generate_kernel_code_from_nodes(nodes, benchmark_kernel=True) + mod = PyCodeCache.load(src_code) + return self.benchmark_codegened_module( + mod, n_spills_threshold, node_names=OrderedSet(n.get_name() for n in nodes) + ) + + def benchmark_codegened_module( + self, mod, n_spills_threshold=8, node_names: Optional[OrderedSet[str]] = None + ) -> tuple[float, str]: + """Benchmark an already compiled module""" + device_interface = get_interface_for_device(V.graph.device_type) + with ( + preserve_rng_state(), + device_interface.device(V.graph.get_current_device_or_throw()), # type: ignore[attr-defined] + ): + ms = None + + def cache_file_path(): + assert mod.__file__ is not None + return os.path.splitext(mod.__file__)[0] + ".kernel_perf" + + def store_cache(): + path = cache_file_path() + write_atomic(path, str(ms)) + + def load_cache(): + path = cache_file_path() + if os.path.exists(path): + with open(path) as fd: + return float(fd.read()) + return None + + node_names = ( + node_names if node_names is not None else OrderedSet(["unknown"]) + ) + log.debug( + "kernel src code for %s written to: %s", + node_names, + mod.__file__, + ) + ms = load_cache() + if ms is not None: + return ms, mod.__file__ + + args = mod.get_args() + call = mod.call + wrapped_jit_function = mod.triton_ + # call once to trigger the compilation + try: + call(wrapped_jit_function.clone_args(*args)[0]) + except Exception as e: + if config.triton.disallow_failing_autotune_kernels_TESTING_ONLY: + raise + log.debug( # noqa: G200 + "Exception (%s) in compiling fused nodes %s", + e, + node_names, + ) + ms = float("inf") + store_cache() + return ms, mod.__file__ + + launchers = wrapped_jit_function.launchers + assert len(launchers) == 1 + # n_spills does not necessarily mean it's not profitable to fuse, + # and sometimes it can be inaccurate + if launchers[0].n_spills > n_spills_threshold: + # skip benchmarking the kernel if there are register spills + ms = float("inf") + else: + device = V.graph.get_current_device_or_throw() + # We have to clone the inplace updated arguments to avoid earlier calls + # generating out of range indices for later calls. + ms = benchmarker.benchmark( + lambda: call(wrapped_jit_function.clone_args(*args)[0]), + device=device, + ) + # overhead of cloning args gives bias for fusing the kernel + # in the case of mutating/in-placeable second fusion + # TODO - would be better as a hook in triton do_bench that reset + # the input values between benchmarking + if len(wrapped_jit_function.mutated_arg_names) > 0: + ms = ms - benchmarker.benchmark( + lambda: wrapped_jit_function.clone_args(*args), + device=str(device), + ) + + log.debug( + "The fused kernel for %s took %.3f ms to run", + node_names, + ms, + ) + store_cache() + return ms, mod.__file__ + + def create_kernel_choices( # type: ignore[override] + self, + kernel_features: SIMDKernelFeatures, + kernel_args: list[Any], + kernel_kwargs: dict[str, Any], + ) -> list[TritonKernel]: + is_scan = kernel_features.contains_op("scan") + is_split_scan = is_scan and any( + node.is_split_scan() for node in kernel_features.scheduler_nodes() + ) + kernel_type: type[TritonKernel] = self.kernel_type + if is_split_scan: + from .triton_split_scan import TritonSplitScanKernel + + kernel_type = TritonSplitScanKernel + + if is_scan: + # TODO(jansel): scan does not yet work with cooperative reductions + kernel_kwargs["override_cooperative_reduction"] = False + + # ops.sort only works with persistent reduction, and is not bandwidth bound anyway + # so taking the hit of non-coalesced loads is okay + if kernel_features.contains_op("sort"): + kernel_kwargs["override_persistent_reduction"] = True + kernel_kwargs["override_cooperative_reduction"] = False + + if not TritonKernel.has_persistent_RBLOCK(kernel_features.reduction_numel): + # Cannot use persistent reduction with unknown dynamic rnumel + assert not kernel_kwargs.get("override_persistent_reduction") + kernel_kwargs["override_persistent_reduction"] = False + + kernel_kwargs = V.choices.triton_kernel_kwargs( + kernel_type, kernel_features, kernel_args, kernel_kwargs + ) + kernel = kernel_type(*kernel_args, **kernel_kwargs) + return self.add_multi_kernel_choices(kernel, kernel_args, kernel_kwargs) + + def add_multi_kernel_choices( + self, + kernel: TritonKernel, + kernel_args: list[Any], + kernel_kwargs: dict[str, Any], + ) -> list[TritonKernel]: + kernels: list[TritonKernel] = [kernel] + if not config.triton.multi_kernel: + return kernels + + optional_persistent = kernel.persistent_reduction and not kernel_kwargs.get( + "override_persistent_reduction" + ) + optional_cooperative = kernel.cooperative_reduction and not kernel_kwargs.get( + "override_cooperative_reduction" + ) + if optional_persistent: + kernels.append( + self.kernel_type( + *kernel_args, + **kernel_kwargs, + override_persistent_reduction=False, + ) + ) + if optional_cooperative: + rnumel = kernel.features.reduction_numel + # for larger sizes non-cooperative gets very slow + if V.graph.sizevars.statically_known_leq(rnumel, 65536): + kernels.append( + other := self.kernel_type( + *kernel_args, + **kernel_kwargs, + override_cooperative_reduction=False, + ) + ) + if optional_persistent and other.persistent_reduction: + kernels.append( + self.kernel_type( + *kernel_args, + **kernel_kwargs, + override_cooperative_reduction=False, + override_persistent_reduction=False, + ) + ) + + if len(kernels) > 1: + for kernel2 in kernels[1:]: + # Keep buffers needed by the non-persistent reduction so both kernels have the same arguments + kernel2.must_keep_buffers = kernel.must_keep_buffers + # persistent kernels must be generated last so must_keep_buffers works right + kernels.sort(key=lambda k: k.persistent_reduction) + return kernels + + def benchmark_combo_kernel(self, node_list): + mod: ModuleType + ms: float + ms_clone: float + + def cache_file_path(): + assert mod.__file__ is not None + return os.path.splitext(mod.__file__)[0] + ".kernel_perf" + + def load_cache(): + path = cache_file_path() + if os.path.exists(path): + with open(path) as fd: + return tuple(float(e) for e in fd.read().split()) + return (None, None) + + def store_cache(): + path = cache_file_path() + write_atomic(path, str(ms) + " " + str(ms_clone)) + + total_ms, file_list = 0, [] + total_clone_ms: float = 0.0 + removed_buffers_orig = V.graph.removed_buffers + V.graph.removed_buffers = OrderedSet(removed_buffers_orig) + inplaced_to_remove_orig = V.graph.inplaced_to_remove + V.graph.inplaced_to_remove = OrderedSet(inplaced_to_remove_orig) + enable_autotune = config.combo_kernels_autotune > 0 + mixed_sizes = config.combo_kernel_allow_mixed_sizes > 0 + kernel_code_list = self.generate_combo_kernel_code( + subkernel_nodes=node_list, + custom_part_algorithm=True, + enable_autotune=enable_autotune, + mixed_sizes=mixed_sizes, + only_gen_src_code=True, + ) + + for src_code, _, node_group in kernel_code_list: + fused_node_lists = [node.get_nodes() for node in node_group] + names = [n.get_name() for nodes in fused_node_lists for n in nodes] + + src_code = src_code.replace(str(Placeholder.KERNEL_NAME), "triton_") + mod = PyCodeCache.load(src_code) + + log.debug( + "kernel src code for %s written to: %s", + names, + mod.__file__, + ) + ms, ms_clone = load_cache() + if ms is not None: + total_ms += ms # type: ignore[assignment] + total_clone_ms += ms_clone + file_list.append(mod.__file__) + continue + + args = mod.get_args() + call = mod.call + wrapped_jit_function = mod.triton_ + + # call once to trigger the compilation + call(wrapped_jit_function.clone_args(*args)[0]) + + launchers = wrapped_jit_function.launchers + assert len(launchers) == 1 + if launchers[0].n_spills > 0: + # skip benchmarking the kernel if there are register spills + ms = ms_clone = float("inf") + else: + device = V.graph.get_current_device_or_throw() + # We have to clone the inplace updated arguments to avoid earlier calls + # generating out of range indices for later calls. + ms = benchmarker.benchmark( + lambda: call(wrapped_jit_function.clone_args(*args)[0]), + device=device, + ) + ms_clone = benchmarker.benchmark( + lambda: wrapped_jit_function.clone_args(*args)[0], + device=device, + ) + + log.debug( + "The fused kernel for %s took %.3f ms to run, %.3f ms to clone inputs", + OrderedSet(n.get_name() for n in node_group), + ms, + ms_clone, + ) + store_cache() + total_ms += ms + total_clone_ms += ms_clone + file_list.append(mod.__file__) + V.graph.removed_buffers = removed_buffers_orig + V.graph.inplaced_to_remove = inplaced_to_remove_orig + return total_ms, total_clone_ms, file_list + + +def debug_triton_code(node: BaseSchedulerNode) -> list[str]: + lines = [] + multi_template = node.get_template_node() + assert multi_template is None or isinstance(multi_template, ir.MultiTemplateBuffer) + if multi_template and multi_template.make_kernel_render is None: + lines.append(f"{node.get_name()} Unfinalized multi template buffer") + else: + from torch._inductor.codegen.cuda_combined_scheduling import ( + CUDACombinedScheduling, + ) + + device = node.get_device() + assert device is not None + backend = node.scheduler.get_backend(device) + assert isinstance(backend, (SIMDScheduling, CUDACombinedScheduling)), ( + f"Scheduling backend should be SIMD or CUDACombined when generating debug Triton strings, got: {type(backend)}" + ) + + with V.graph.set_current_device(device): + # Don't increment kernel count when generating debug string. + # This will confuse some unit tests that check the number of + # generated kernels. + old_generated_kernel_count = metrics.generated_kernel_count + triton_code = backend.generate_kernel_code_from_nodes( + node.get_nodes() + ).strip() + metrics.generated_kernel_count = old_generated_kernel_count + + lines.append(f"{node.get_name()} Triton code:") + lines.append(textwrap.indent(triton_code, " ")) + return lines diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/triton_combo_kernel.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/triton_combo_kernel.py new file mode 100644 index 0000000000000000000000000000000000000000..74ed7d3797396deb07d5957d67af5bb22930e11a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/triton_combo_kernel.py @@ -0,0 +1,1037 @@ +import itertools +import logging +import textwrap +from collections import defaultdict +from collections.abc import Callable +from dataclasses import dataclass +from typing import Any, cast, Optional, Union + +import sympy +from sympy import Integer, Symbol + +from torch.utils._ordered_set import OrderedSet + +from .. import config, metrics +from ..runtime.hints import DeviceProperties +from ..runtime.runtime_utils import next_power_of_2 +from ..runtime.triton_heuristics import ( + RoundRobinComboKernelGrid, + SequentialComboKernelGrid, +) +from ..scheduler import BaseSchedulerNode +from ..utils import Placeholder, triton_version_uses_attrs_dict +from ..virtualized import V +from .common import ( + ArgName, + ConstexprArg, + DeferredLine, + IndentedBuffer, + InplacedBuffer, + Kernel, + PythonPrinter, + RemovedArg, + SizeArg, + WorkspaceArg, +) +from .simd import prefix_is_reduction, SIMDScheduling +from .simd_kernel_features import SIMDKernelFeatures +from .triton import gen_common_triton_imports, TritonKernel +from .triton_utils import config_of, equal_1_arg_indices, signature_to_meta + + +log = logging.getLogger(__name__) +pexpr = PythonPrinter().doprint +LARGE_NUMELS = 512e5 +BLOCK_UTILIZATION = 0.8 + + +def _default_custom_combo_kernel_horizontal_partition( + nodes: list[BaseSchedulerNode], + triton_scheduling: SIMDScheduling, + kernel_map: dict[BaseSchedulerNode, TritonKernel], + node_info_map: dict[BaseSchedulerNode, tuple[Any, Any, Any, Any]], +) -> list[list[BaseSchedulerNode]]: + """Horizontally partition the given list of nodes into a list of list of nodes where each sublist + represents a partition. Nodes in different partitions are implemented in different combo kernels. + Nodes in the same partition are likely to be implemented + in the same combo kernel, but subject to subsequent restrictions like CUDA limits for number of args. + + Input arguments: + nodes: a list of fused scheduler nodes to partition. + triton_scheduling: TritonScheduling instance. + kernel_map: a map from node to its kernel. + node_info_map: a map from node to (node_schedule, tiled_groups, numel, rnumel). + Output: + a list of list of nodes with each sublist representing a partition. + + The default algorithm is to partition nodes based on the following rules: + 1) nodes with the same number of block dimensions are grouped together. + 2) large pointwise nodes (numels greater than LARGE_NUMELS) are separated from other nodes. + 3) large reduce nodes are separated from other nodes. + """ + + assert len(nodes) >= 1 + + # first partition nodes based on number of block dimensions + tilings = [node_info_map[n][1] for n in nodes] + + max_dims = max(len(t) for t in tilings) + nodes_per_ndim: list[list[BaseSchedulerNode]] = [] + for i in range(2, max_dims + 1): + group_per_dim = [n for n, t in zip(nodes, tilings) if len(t) == i] + reduction = [ + n + for n in group_per_dim + if kernel_map[n].inside_reduction + and not (kernel_map[n].persistent_reduction and kernel_map[n].no_x_dim) + ] + not_reduction = [n for n in group_per_dim if n not in reduction] + # rnumel > 2048 usually has long execution time + # BaseSchedulerNode.group[-1][-1] is rnumel for reduction nodes + long_reduction = [ + n + for n in reduction + if ( + V.graph.sizevars.shape_env.has_hint(n.group[-1][-1]) + and V.graph.sizevars.size_hint(n.group[-1][-1]) > 2048 # type: ignore[arg-type] + ) + ] + short_reduction = [n for n in reduction if n not in long_reduction] + if long_reduction: + log.debug( + "ComboKernels: %d long reduction nodes are separated", + len(long_reduction), + ) + large_pointwise = [ + n + for n in not_reduction + if not kernel_map[n].inside_reduction + and len(kernel_map[n].numels) == 2 + and V.graph.sizevars.shape_env.has_hint(kernel_map[n].numels["x"]) + and V.graph.sizevars.size_hint(kernel_map[n].numels["x"]) > LARGE_NUMELS + ] + if large_pointwise: + # TODO benchmark the performance when large pointwise nodes combining with others + log.debug( + "ComboKernels: %d large pointwise nodes are separated", + len(large_pointwise), + ) + not_reduction = [n for n in not_reduction if n not in large_pointwise] + nodes_per_ndim.extend([node] for node in large_pointwise) + + nodes_per_ndim.extend( + g for g in (not_reduction, short_reduction, long_reduction) if g + ) + + assert sum(len(p) for p in nodes_per_ndim) == len(nodes) + return nodes_per_ndim + + +_custom_combo_kernel_horizontal_partition_algorithm: Callable[ + [ + list[BaseSchedulerNode], + SIMDScheduling, + dict[BaseSchedulerNode, TritonKernel], + dict[BaseSchedulerNode, tuple[Any, Any, Any, Any]], + ], + list[list[BaseSchedulerNode]], +] = _default_custom_combo_kernel_horizontal_partition + + +def set_custom_combo_kernel_horizontal_partition( + algorithm: Callable[ + [ + list[BaseSchedulerNode], + SIMDScheduling, + dict[BaseSchedulerNode, TritonKernel], + dict[BaseSchedulerNode, tuple[Any, Any, Any, Any]], + ], + list[list[BaseSchedulerNode]], + ], +) -> None: + """Sets the algorithm used to partition nodes into horizontal partitions. Nodes in different partitions + are implemented in different combo kernels. Nodes in the same partition are likely to be implemented + in the same combo kernel, but subject to subsequent restricts like CUDA limits for number of args. + + The algorithm should take a list of nodes and return a list of list of nodes. + + The default algorithm is to partition nodes based on number of block dimensions. + """ + global _custom_combo_kernel_horizontal_partition_algorithm + _custom_combo_kernel_horizontal_partition_algorithm = algorithm + + +@dataclass +class PartitionState: + partitions: list[list[BaseSchedulerNode]] + cur_partition: list[BaseSchedulerNode] + cur_count: int + + def finalize(self) -> None: + if self.cur_partition: + self.partitions.append(self.cur_partition) + + +class ComboKernel(Kernel): + @staticmethod + def _update_partition( + partition_state: PartitionState, + node_rw_count: int, + node_info: BaseSchedulerNode, + ) -> None: + if partition_state.cur_count + node_rw_count > config.combo_kernel_max_num_args: + partition_state.partitions.append(partition_state.cur_partition) + partition_state.cur_partition = [node_info] + partition_state.cur_count = node_rw_count + else: + partition_state.cur_count += node_rw_count + partition_state.cur_partition.append(node_info) + + @staticmethod + def _base_horizontal_partition( + subkernel_nodes: list[BaseSchedulerNode], + triton_scheduling: SIMDScheduling, + node_info_map: dict[BaseSchedulerNode, tuple[Any, Any, Any, Any]], + custom_algorithm: bool, + ) -> list[list[BaseSchedulerNode]]: + """Generates a list of lists of node info tuples which consist of (fused_nodes, tiling, numel, rnumel) + for each subkernel node where each sublist is guaranteed to not exceed CUDA limits for number of args + (read/writes) and to have the same 2D or 1D blocking strategy.""" + # TODO support combination of kernels with different block dimensions + assert len(subkernel_nodes) >= 1 + mixed_sizes = config.combo_kernel_allow_mixed_sizes > 1 or ( + config.combo_kernel_allow_mixed_sizes == 1 and custom_algorithm + ) + + ndim_to_partition_state: dict[int, PartitionState] = defaultdict( + lambda: PartitionState([], [], 0) + ) + yelem_to_partition_state: dict[int, PartitionState] = defaultdict( + lambda: PartitionState([], [], 0) + ) + + for node in subkernel_nodes: + _node_schedule, tiled_groups, _numel, _rnumel = node_info_map[node] + node_info = node + + read_writes = node.read_writes + read_write_count = len(read_writes.reads) + len(read_writes.writes) + + ndim = len(tiled_groups) + assert ndim >= 2, f"Combokernel not support tile {tiled_groups}" + if not mixed_sizes and ndim == 3: + y_elem = tiled_groups["y"] + partition_state = yelem_to_partition_state[y_elem] + ComboKernel._update_partition( + partition_state, read_write_count, node_info + ) + else: + assert mixed_sizes or ndim <= 3, f"No mixed sizes: tile {tiled_groups}" + partition_state = ndim_to_partition_state[ndim] + ComboKernel._update_partition( + partition_state, read_write_count, node_info + ) + + all_partitions = [] + for partition_state in ndim_to_partition_state.values(): + partition_state.finalize() + all_partitions.extend(partition_state.partitions) + for partition_state in yelem_to_partition_state.values(): + partition_state.finalize() + all_partitions.extend(partition_state.partitions) + + return all_partitions + + @staticmethod + def horizontal_partition( + nodes: list[BaseSchedulerNode], + triton_scheduling: SIMDScheduling, + kernel_map: dict[BaseSchedulerNode, TritonKernel], + node_info_map: dict[BaseSchedulerNode, tuple[Any, Any, Any, Any]], + custom_algorithm: bool = False, + ) -> list[list[BaseSchedulerNode]]: + """Generates a list of lists of node info tuples which consist of (fused_nodes, tiling, numel, rnum) + for each subkernel node where each sublist forms a ComboKernel. It horizontally partitions nodes into + sublists in the following way: + 1) call _custom_combo_kernel_horizontal_partition_algorithm() if custom_algorithm is True + 2) then, call _base_horizontal_partition() to partition nodes into sublists, each sublist is + guaranteed to not exceed CUDA limits for number of args (read/writes) and to have the same + 2D or 1D blocking strategy. + """ + if custom_algorithm: + raw_partitions = _custom_combo_kernel_horizontal_partition_algorithm( + nodes, triton_scheduling, kernel_map, node_info_map + ) + else: + raw_partitions = [nodes] + + """Generates a list of lists of node info tuples which consist of (fused_nodes, tiling, numel, rnumel) + for each subkernel node where each sublist is guaranteed to not exceed CUDA limits for number of args + (read/writes) and to have the same 2D or 1D blocking strategy.""" + all_partitions = [] + for raw_partition in raw_partitions: + all_partitions.extend( + ComboKernel._base_horizontal_partition( + raw_partition, triton_scheduling, node_info_map, custom_algorithm + ) + ) + return all_partitions + + class SequentialDispatch: + """ + The dispatcher which dispatches the subkernels in a sequential manner: + the blocks are first dispatched to the 1st subkernel (until it is filled), + then to the 2nd subkernel, and so on. + The class defines the methods specific to the dispatch algorithm. + Methods: + codegen_pid_range(...): codegen the pid range for each subkernel. + grid(...): codegen the grid size for launching the combo kernel. + """ + + grid_expr = SequentialComboKernelGrid + + @classmethod + def codegen_pid_range( + cls, kernel: "ComboKernel", num: int, code: IndentedBuffer + ) -> None: + if num == 0: + cls._calculate_xblocks(kernel, code) + code.splice(f"if pid < num_xblocks_{num}:") + with code.indent(): + code.splice("pid_offset = pid") + else: + code.splice(f"elif pid < num_xblocks_{num}:") + with code.indent(): + code.splice(f"pid_offset = pid - num_xblocks_{num - 1}") + + @classmethod + def _calculate_xblocks( + cls, kernel: "ComboKernel", code: IndentedBuffer + ) -> None: + x_numels_list = kernel.x_numels_list + for i in range(len(x_numels_list)): + xnumels, no_x_dim = ( + (x_numels_list[i], False) + if isinstance(x_numels_list[i], str) + and cast(str, x_numels_list[i])[0] != "-" + or ( + isinstance(x_numels_list[i], int) + and cast(int, x_numels_list[i]) > 0 + ) + else (kernel.min_x_blocks_list[i], True) + ) + xblock_str = ( + f"tl.cdiv({xnumels}, XBLOCK)" if not no_x_dim else f"{xnumels}" + ) + if i == 0: + code.splice(f"num_xblocks_{i} = {xblock_str}") + else: + code.splice(f"num_xblocks_{i} = num_xblocks_{i - 1} + {xblock_str}") + + class RoundRobinDispatch: + """ + The dispatcher which dispatches the subkernels in a round robin manner: + the blocks are interleavedly dispatched to each subkernel to execute them + in parallel. + The class defines the methods specific to the dispatch algorithm. + Methods: + codegen_pid_range(...): codegen the pid range for each subkernel. + grid(...): codegen the grid size for launching the combo kernel. + """ + + grid_expr = RoundRobinComboKernelGrid + + @classmethod + def codegen_pid_range( + cls, kernel: "ComboKernel", num: int, code: IndentedBuffer + ) -> None: + num_kernels = len(kernel.sub_kernels) + if num == 0: + cond = "if" + else: + cond = "elif" + code.splice(f"{cond} pid % {num_kernels} == {num}:") + with code.indent(): + code.splice(f"pid_offset = pid // {num_kernels}") + + def __init__( + self, enable_autotune: bool = False, mixed_sizes: bool = False + ) -> None: + super().__init__() + self.sub_kernels: list[TritonKernel] = [] + self.iter_vars_count = itertools.count() + self.grids: list[list[int]] = [] + self.min_x_blocks_list: list[Union[int, str]] = [] + self.x_numels_list: list[Union[int, str]] = [] + self.enable_autotune = enable_autotune + self.mixed_sizes = mixed_sizes + self.dispatch_class: Optional[ + type[Union[ComboKernel.SequentialDispatch, ComboKernel.RoundRobinDispatch]] + ] = None + self.block_args: list[str] = [] + # there following are used when autotuning is disabled + self.block_size_1d = 1024 # Try tuning this value + self.block_size_2d = 32 + self.num_warps = 8 + self.block_size_reduce = 256 + self.dynamic_shape_args: list[str] = [] + + def create_sub_kernel(self, triton_kernel: TritonKernel) -> TritonKernel: + sub_kernel = triton_kernel + # pyrefly: ignore [bad-assignment] + metrics.generated_kernel_count -= 1 + sub_kernel.args = self.args + sub_kernel.iter_vars_count = self.iter_vars_count + sub_kernel.cse.iter_buffer_ids = self.cse.iter_buffer_ids + self.sub_kernels.append(sub_kernel) + return sub_kernel + + @staticmethod + def create_triton_kernel( + tiling: dict[str, sympy.Expr], + features: SIMDKernelFeatures, + optimize_mask: bool, + ) -> TritonKernel: + """ + Only allow optimize_mask=True when 1) sequential dispatch is used, + 2) numels except x dimension are the same for each sub kernel. + """ + return TritonKernel( + tiling, + features=features, + pid_cache={"tl.program_id(0)": "pid_offset"}, + optimize_mask=optimize_mask, + # foreach kernels don't work with cooperative reductions + override_cooperative_reduction=False, + ) + + def codegen_static_numels_sub_kernel( + self, code: IndentedBuffer, sub_kernel: TritonKernel, num: int + ) -> list[str]: + """ + We get a small speedup from hard coding numels if they are static. + + This code stomps on the passed-in values by writing an constant to the top of the kernel. + + In a kernel like: + def KERNEL_NAME(in_ptr0, in_ptr1, out_ptr2, xnumel, rnumel, XBLOCK : tl.constexpr, R0_BLOCK : tl.constexpr): + + We would add + xnumel = 4096 + rnumel = 768 + + After the signature, before the kernel code, if we decided to make these static. As its hardcoded, it becomes + a better signal to triton on how to unroll and do some static indexing. So, it's not so much that downstream + knows that its a static numel, as that you just plop a constant into the kernel. + """ + grid = [] + uniquify_block_sizes = [] + for tree in sub_kernel.range_trees: + simplified_tree_numel = V.graph.sizevars.simplify(tree.numel) + if isinstance(simplified_tree_numel, (Integer, int)): + code.writeline(f"{tree.prefix}numel = {int(simplified_tree_numel)}") + else: + assert f"{tree.prefix}numel_{num}" in self.dynamic_shape_args + uniquify_block_sizes.append(f"{tree.prefix}numel") + + # pyrefly: ignore [missing-argument] + if not tree.is_reduction: + if isinstance(simplified_tree_numel, (Integer, int)): + grid.append(int(simplified_tree_numel)) + else: + # pyrefly: ignore [bad-argument-type] + grid.append(f"{tree.prefix}numel_{num}") + + if tree.is_reduction and sub_kernel.persistent_reduction: + if isinstance(simplified_tree_numel, (Integer, int)): + val = int(simplified_tree_numel) + else: + raise RuntimeError( + "Dynamic shape on reduction dimension is not supported" + ) + val = next_power_of_2(val) + code.writeline( + f"{tree.prefix.upper()}BLOCK_{num}: tl.constexpr = {val}" + ) + uniquify_block_sizes.append(f"{tree.prefix.upper()}BLOCK") + + if tree.prefix == "x" and sub_kernel.no_x_dim: + code.writeline(f"XBLOCK_{num}: tl.constexpr = 1") + uniquify_block_sizes.append("XBLOCK") + self.grids.append(grid) + return uniquify_block_sizes + + def min_x_blocks_sub_kernel(self, sub_kernel: TritonKernel, num: int) -> None: + """ + Kernels with no_x_dim being true has no tunable XBLOCK. They have a fixed number of X blocks. + Grid calculation needs to make sure that they are assigned with enough number of blocks. + """ + min_x_blocks: Union[int, str] = 0 + x_numels: Union[int, str] = 0 + for tree in sub_kernel.range_trees: + simplified_tree_numel = V.graph.sizevars.simplify(tree.numel) + if tree.prefix == "x": + if isinstance(simplified_tree_numel, (Integer, int)): + x_numels = int(simplified_tree_numel) + else: + x_numels = f"{tree.prefix}numel_{num}" + if sub_kernel.no_x_dim: + min_x_blocks = x_numels + x_numels = ( + # pyrefly: ignore [unsupported-operation] + -min_x_blocks + if isinstance(x_numels, int) + # pyrefly: ignore [redundant-cast] + else "-" + cast(str, x_numels) + ) + else: + if isinstance(simplified_tree_numel, (Integer, int)): + x_numels = int(simplified_tree_numel) + else: + x_numels = f"{tree.prefix}numel_{num}" + self.min_x_blocks_list.append(min_x_blocks) + self.x_numels_list.append(x_numels) + + def select_heuristics(self, sub_kernel: TritonKernel) -> tuple[str, dict[str, int]]: + size_hints = { + prefix: next_power_of_2( + V.graph.sizevars.size_hint( + numel, fallback=config.unbacked_symint_fallback + ) + ) + for prefix, numel in sub_kernel.numels.items() + if not prefix_is_reduction(prefix) or sub_kernel.inside_reduction + } + if sub_kernel.persistent_reduction: + assert sub_kernel.inside_reduction + heuristics = "persistent_reduction" + elif sub_kernel.inside_reduction: + heuristics = "reduction" + else: + heuristics = "pointwise" + return heuristics, size_hints + + def select_combo_heuristics( + self, heuristics_list: list[str], size_hints_list: list[dict[str, int]] + ) -> tuple[str, dict[str, int], TritonKernel]: + if not self.enable_autotune: + return "foreach", size_hints_list[0], self.sub_kernels[0] + if "reduction" in heuristics_list: + i, _ = max( + enumerate(size_hints_list), + key=lambda x: x[1]["x"] if heuristics_list[x[0]] == "reduction" else 0, + ) + return heuristics_list[i], size_hints_list[i], self.sub_kernels[i] + elif "pointwise" in heuristics_list: + i, _ = max( + enumerate(size_hints_list), + key=lambda x: x[1]["x"] if heuristics_list[x[0]] == "pointwise" else 0, + ) + # modify size_hint to avoid oom check fail (may be a false alarm) + num_pointwise = len([e for e in heuristics_list if e == "pointwise"]) + num_reduction = len([e for e in heuristics_list if e == "reduction"]) + num_persistent_reduction = len( + [e for e in heuristics_list if e == "persistent_reduction"] + ) + assert num_reduction == 0, ( + "combining pointwise and reduction are not supported yet." + ) + heuristics = ( + "pointwise_with_reduction" + if num_persistent_reduction > 0 + else "pointwise" + ) + if len(heuristics_list) - num_pointwise >= 4: + size_hints = size_hints_list[i] + size_hints["x"] = min(128, size_hints["x"]) + return heuristics, size_hints_list[i], self.sub_kernels[i] + else: + return heuristics_list[0], size_hints_list[0], self.sub_kernels[0] + + def get_mutated_args_sub_kernels(self) -> list[str]: + mutated_args: OrderedSet[str] = OrderedSet() + for sub_kernel in self.sub_kernels: + for mutation in sub_kernel.mutations: + if mutation in sub_kernel.args.input_buffers: + mutated_args.add(sub_kernel.args.input_buffers[mutation]) + if ( + mutation in sub_kernel.args.inplace_buffers + and mutation not in V.graph.removed_buffers + and mutation not in sub_kernel.removed_buffers + ): + mutated_args.add( + cast( + InplacedBuffer, sub_kernel.args.inplace_buffers[mutation] + ).inner_name + ) + if mutation in sub_kernel.args.output_buffers: + arg = sub_kernel.args.output_buffers[mutation] + assert not isinstance(arg, RemovedArg) + mutated_args.add(arg) + return sorted(mutated_args) + + def select_dispatch_strategy(self) -> None: + if self.dispatch_class is not None: + return + # mixed_sizes is used for optimize_mask, so it only allows sequential dispatch + # Not mixed sizes on y dim technically is ok to use round robin as wells. + if not self.mixed_sizes or any(isinstance(e, str) for e in self.x_numels_list): + # str in x_numels_list means a dynamic shape + self.dispatch_class = ComboKernel.SequentialDispatch + return + # A negative x_blocks_list element means the kernel is not tunable, + # i.e., no_x_dim = True + x_numels_list = [abs(cast(int, e)) for e in self.x_numels_list] + total = max(x_numels_list) * len(x_numels_list) + needed = sum(x_numels_list) + if needed / total > BLOCK_UTILIZATION: + # Introduced overhead (masked blocks) is less than 20% + self.dispatch_class = ComboKernel.RoundRobinDispatch + else: + self.dispatch_class = ComboKernel.SequentialDispatch + + def jit_line( + self, + heuristics: str, + size_hints: dict[str, int], + selected_kernel: TritonKernel, + signature: list[Any], + argdefs: list[ArgName], + pointwise_with_reduce: bool = False, + ) -> str: + can_use_32bit = all(k.index_dtype == "tl.int32" for k in self.sub_kernels) + size_dtype = "tl.int32" if can_use_32bit else "tl.int64" + for i, sub in enumerate(self.sub_kernels): + self.min_x_blocks_sub_kernel(sub, i) + self.select_dispatch_strategy() + triton_meta = { + "signature": signature_to_meta( + signature, size_dtype=size_dtype, argdefs=argdefs + ), + "device": DeviceProperties.create(V.graph.get_current_device_or_throw()), + "constants": {}, + } + + for arg_num in equal_1_arg_indices(signature): + triton_meta["constants"][signature[arg_num].name] = 1 # type: ignore[index,union-attr] + + # pyrefly: ignore [unsupported-operation] + triton_meta["configs"] = [config_of(signature)] + mutated_args = self.get_mutated_args_sub_kernels() + dispatch = self.dispatch_class + assert dispatch is not None + inductor_meta = { + "grid_type": dispatch.grid_expr.__name__, + "combo_grid_meta": self.combo_grid_meta(), + "kernel_name": str(Placeholder.DESCRIPTIVE_NAME), + "mutated_arg_names": mutated_args, + **TritonKernel.inductor_meta_common(), + } + + sub_kernel = selected_kernel + if heuristics == "foreach": + heuristics_line = f""" + @triton_heuristics.foreach( + filename=__file__, + triton_meta={triton_meta!r}, + inductor_meta={inductor_meta!r}, + ) + @triton.jit + """ + elif sub_kernel.inside_reduction: + reduction_hint = sub_kernel.features.get_reduction_hint() + heuristics_line = f""" + @triton_heuristics.{heuristics}( + size_hints={size_hints!r}, + reduction_hint={reduction_hint}, + filename=__file__, + triton_meta={triton_meta!r}, + inductor_meta={inductor_meta!r} + ) + @triton.jit + """ + else: + tile_hint = "" + if len(size_hints) == 2: + tile_hint = "tile_hint=TileHint.SQUARE," + else: + tile_hint = "tile_hint=TileHint.DEFAULT," + heuristics_line = f""" + @triton_heuristics.{heuristics}( + size_hints={size_hints!r}, {tile_hint} + filename=__file__, + triton_meta={triton_meta!r}, + inductor_meta={inductor_meta!r} + ) + @triton.jit + """ + + return heuristics_line + + def codegen_blocks(self, code: IndentedBuffer) -> None: + for block in self.block_args: + assert block in ( + "XBLOCK", + "YBLOCK", + "R0_BLOCK", + ), f"{block} is not supported without autotuning" + if "YBLOCK" in self.block_args: + code.splice(f"XBLOCK: tl.constexpr = {self.block_size_2d}") + code.splice(f"YBLOCK: tl.constexpr = {self.block_size_2d}") + else: + code.splice(f"XBLOCK: tl.constexpr = {self.block_size_1d}") + if "R0_BLOCK" in self.block_args: + code.splice(f"R0_BLOCK: tl.constexpr = {self.block_size_reduce}") + code.splice(f"RBLOCK: tl.constexpr = {self.block_size_reduce}") + + def get_block_args(self) -> list[ConstexprArg]: + """ + Calculate blocks from sub_kernels and range_trees. + **Update self.block_args** + Return the block args + """ + block_names = {} + for sub_kernel in self.sub_kernels: + # TODO: we assume all sub_kernels have the same block size + for tree in sub_kernel.range_trees: + # pyrefly: ignore [missing-argument] + if tree.is_reduction and ( + not sub_kernel.inside_reduction or sub_kernel.persistent_reduction + ): + continue + if tree.prefix == "x" and sub_kernel.no_x_dim: + continue + block_names[f"{tree.prefix.upper()}BLOCK"] = tree.prefix + self.block_args = list(block_names.keys()) + + return [ConstexprArg(x) for x in block_names] + + def add_numel_to_args( + self, argdefs: list[ArgName], signature: list[Any] + ) -> list[ArgName]: + for num, sub_kernel in enumerate(self.sub_kernels): + for tree in sub_kernel.active_range_trees(): + if not isinstance(tree.numel, (Integer, int)): + # only if it is a dynamic shape + sizearg = SizeArg(f"{tree.prefix}numel_{num}", tree.numel) + signature.append(sizearg) + argdefs.append(ArgName(f"{tree.prefix}numel_{num}")) + self.dynamic_shape_args.append(f"{tree.prefix}numel_{num}") + return argdefs + + def add_numel_to_call_args( + self, name: str, call_args: list[Any], arg_types: list[Any] + ) -> None: + for num, sub_kernel in enumerate(self.sub_kernels): + for tree in sub_kernel.range_trees: + numel_name = f"{tree.prefix}numel_{num}" + if numel_name not in self.dynamic_shape_args: + continue + if isinstance(tree.numel, (Integer, Symbol)): + expr = tree.numel + else: + expr = V.graph.wrapper_code.generate_numel_expr( + name, tree, suffix=str(num) + ) + # pyrefly: ignore [missing-argument] + if not tree.is_reduction or sub_kernel.inside_reduction: + call_args.append(expr) + arg_types.append(type(expr)) + + def kernel_benchmark_extra_args(self) -> list[str]: + extra_args = [] + for num, sub_kernel in enumerate(self.sub_kernels): + for tree in sub_kernel.range_trees: + numel_name = f"{tree.prefix}numel_{num}" + if numel_name not in self.dynamic_shape_args: + continue + # pyrefly: ignore [missing-argument] + if not tree.is_reduction or sub_kernel.inside_reduction: + extra_args.append( + str( + V.graph.sizevars.size_hint( + tree.numel, fallback=config.unbacked_symint_fallback + ) + ) + ) + return extra_args + + def codegen_kernel(self, name: Optional[str] = None) -> str: + # TODO: is it correct to use the first sub kernel's heuristics? + heuristics_list, size_hints_list = [], [] + for subkernel in self.sub_kernels: + h, s = self.select_heuristics(subkernel) + heuristics_list.append(h) + size_hints_list.append(s) + heuristics, size_hints, selected_kernel = self.select_combo_heuristics( + heuristics_list, size_hints_list + ) + pointwise_with_reduction, heuristics = ( + (True, "pointwise") + if heuristics == "pointwise_with_reduction" + else (False, heuristics) + ) + code = IndentedBuffer() + + code.splice(gen_common_triton_imports()) + if config.benchmark_combo_kernel: + code.splice(self.imports_for_benchmark_kernel()) + + seen_helpers: OrderedSet[str] = OrderedSet() + for sub_kernel in self.sub_kernels: + for helper in sub_kernel.helper_functions: + if helper not in seen_helpers: + code.writeline("") + code.splice(helper) + seen_helpers.add(helper) + + argdefs, _, signature, _ = self.args.python_argdefs() + argdefs = self.add_numel_to_args(argdefs, signature) + block_args = self.get_block_args() + if self.enable_autotune: + argdefs.extend([ArgName(x.name, is_constexpr=True) for x in block_args]) + if triton_version_uses_attrs_dict(): + signature.extend(block_args) + + code.splice( + self.jit_line( + heuristics, + size_hints, + selected_kernel, + pointwise_with_reduce=pointwise_with_reduction, + signature=signature, + argdefs=argdefs, + ) + ) + code.writeline( + f"def {name or str(Placeholder.KERNEL_NAME)}({', '.join(x.full_name() for x in argdefs)}):" + ) + + with code.indent(): + code.splice("pid = tl.program_id(0)") + if not self.enable_autotune: + self.codegen_blocks(code) + + for num, sub_kernel in enumerate(self.sub_kernels): + assert self.dispatch_class is not None + self.dispatch_class.codegen_pid_range(self, num, code) + with code.indent(): + uniquify = self.codegen_static_numels_sub_kernel( + code, sub_kernel, num + ) + sub_kernel.codegen_body() + uniquified_body = self.uniquify_block_sizes( + sub_kernel.body, num, uniquify + ) + code.splice(uniquified_body) + + code.splice("else:") + with code.indent(): + code.splice("pass") + + if config.benchmark_combo_kernel: + code.splice(self.codegen_kernel_benchmark(num_gb=0)) + + return code.getvalue() + + def codegen_kernel_benchmark(self, num_gb: float) -> IndentedBuffer: + """ + Generates Python code for benchmarking this combo kernel. + - Creates example inputs (random tensors, constants, sizes). + - Runs the kernel on the current GPU/stream. + - Prints runtime (ms) and throughput (GB/s) using `num_gb`. + Args: + num_gb (float): The number of gigabytes to use for throughput calculation. + Returns: + IndentedBuffer: A buffer containing the generated Python benchmark code. + """ + result = IndentedBuffer() + _argdefs, call_args, signature, _ = self.args.python_argdefs() + result.writelines(["", "", "def get_args():"]) + with result.indent(): + name_cnt = itertools.count() + var_names = [] + for arg_name, arg_sig in zip(call_args, signature): + var_name = f"arg_{next(name_cnt)}" + buf = V.graph.try_get_buffer(arg_name) + if buf: + size = V.graph.sizevars.size_hints( + buf.get_size(), fallback=config.unbacked_symint_fallback + ) + stride = V.graph.sizevars.size_hints( + buf.get_stride(), fallback=config.unbacked_symint_fallback + ) + result.writeline( + f"{var_name} = rand_strided({size}, {stride}, device='{buf.get_device()}', dtype={buf.get_dtype()})" # noqa: B950 line too long + ) + elif arg_name in V.graph.constants: + # note that random seed is put in V.graph.constants + const_tensor = V.graph.constants[arg_name] + size = V.graph.sizevars.size_hints( + const_tensor.size(), fallback=config.unbacked_symint_fallback + ) + stride = V.graph.sizevars.size_hints( + const_tensor.stride(), fallback=config.unbacked_symint_fallback + ) + result.writeline( + f"{var_name} = rand_strided({size}, {stride}, device='{const_tensor.device}', dtype={const_tensor.dtype})" # type: ignore[arg-type] # noqa: B950 line too long + ) + elif isinstance(arg_sig, SizeArg): + symval_hint = V.graph.sizevars.size_hint(arg_sig.expr) + + # Force the seed_offset to be 0 so calls to the same kernel + # using different seed offset will have the same benchmark harness. + # We can dedup kernel definitions in this case. + if "seed_offset" in arg_sig.name: + symval_hint = 0 + result.writeline(f"{var_name} = {symval_hint}") + elif isinstance(arg_sig, WorkspaceArg): + device = V.graph.get_current_device_or_throw() + count = V.graph.sizevars.size_hint(arg_sig.count) + # for benchmark harness, we ignore arg_sig.zero_mode and always zero it + result.writeline( + f"{var_name} = torch.zeros({count}, device='{device}', dtype={arg_sig.dtype})" + ) + else: + raise KeyError( + f"Don't find the buffer or const tensor for {arg_name}" + ) + var_names.append(var_name) + if self.dynamic_shape_args: + var_names.extend(self.kernel_benchmark_extra_args()) + result.writeline(f"return {', '.join(var_names)},") + + result.writelines(["\n", "\n", "def call(args):"]) + device = V.graph.get_current_device_or_throw() + index = V.graph.get_current_device_or_throw().index + with result.indent(): + result.writeline(f"with {V.graph.device_ops.device_guard(index)}:") + with result.indent(): + result.writeline( + V.graph.device_ops.set_device(index) + ) # no-op to ensure context + stream_name = f"stream{index}" + result.writeline(f"{stream_name} = get_raw_stream({index})") + result.writeline( + f"{str(Placeholder.KERNEL_NAME)}.run(*args, stream={stream_name})" + ) + + # benchmark all configs + result.writelines(["\n", "\n", "def benchmark_all_configs(args):"]) + with result.indent(): + result.writeline(f"with {V.graph.device_ops.device_guard(index)}:") + with result.indent(): + result.writeline( + V.graph.device_ops.set_device(index) + ) # no-op to ensure context + result.writeline( + f"return {str(Placeholder.KERNEL_NAME)}.benchmark_all_configs(*args)" + ) + + result.writelines(["\n", "\n", "if __name__ == '__main__':"]) + with result.indent(): + result.writeline( + "from torch._inductor.runtime.benchmarking import benchmarker" + ) + result.writeline("") + + result.writeline("args = get_args()") + result.writeline( + f"ms = benchmarker.benchmark(call, fn_args=(args,), device={device.type},rep=40)" + ) + result.writeline(f"num_gb = {num_gb}") + result.writeline("gb_per_s = num_gb / (ms / 1e3)") + result.writeline( + 'print(f"{ms:.3f}ms {num_gb:.3f}GB {gb_per_s:.2f}GB/s")' + ) + + return result + + def imports_for_benchmark_kernel(self) -> str: + return textwrap.dedent( + """ + from torch._dynamo.testing import rand_strided + {} + import torch + """.format(V.graph.device_ops.import_get_raw_stream_as("get_raw_stream")) + ) + + def uniquify_block_sizes( + self, code: IndentedBuffer, num_kernel: int, uniquify: list[str] + ) -> IndentedBuffer: + if not uniquify: + return code + modified = IndentedBuffer(initial_indent=code._indent) + for line in code._lines: + if isinstance(line, str) and (blocks := [e for e in uniquify if e in line]): + modified_line = line + for block in blocks: + modified_line = modified_line.replace( + block, f"{block}_{num_kernel}" + ) + modified.writeline(modified_line) + elif isinstance(line, DeferredLine) and ( + blocks := [e for e in uniquify if e in line.line] + ): + modified_line = line.line + for block in blocks: + modified_line = modified_line.replace( + block, f"{block}_{num_kernel}" + ) + new_line = DeferredLine(line.name, modified_line) + modified.writeline(new_line) + else: + modified.writeline(line) + return modified + + def call_kernel(self, code: IndentedBuffer, name: str) -> None: + _, call_args, _, arg_types = self.args.python_argdefs() + + wrapper = V.graph.wrapper_code + assert self.dispatch_class is not None + if self.dynamic_shape_args: + self.add_numel_to_call_args(name, call_args, arg_types) + + wrapper.generate_kernel_call( + name, + call_args, + triton=True, + arg_types=arg_types, + ) + + def combo_grid_meta(self) -> dict[str, Any]: + dynamic_shape = bool(self.dynamic_shape_args) + num_kernels = len(self.sub_kernels) + min_blocks = ( + max(self.min_x_blocks_list) * num_kernels if not dynamic_shape else None + ) + + if not self.enable_autotune: + if "YBLOCK" in self.block_args: + default_config = { + "XBLOCK": self.block_size_2d, + "YBLOCK": self.block_size_2d, + } + else: + default_config = {"XBLOCK": self.block_size_1d} + else: + default_config = None + + meta = { + "num_kernels": num_kernels, + "min_blocks": min_blocks, + "default_config": default_config, + } + + for num, sub_kernel in enumerate(self.sub_kernels): + meta[f"no_x_dim_{num}"] = sub_kernel.no_x_dim + for tree in sub_kernel.range_trees: + # pyrefly: ignore [missing-argument] + if not tree.is_reduction: + numel_name = f"{tree.prefix}numel_{num}" + if numel_name in self.dynamic_shape_args: + meta[numel_name] = None + else: + meta[numel_name] = int(V.graph.sizevars.simplify(tree.numel)) + + return meta diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/triton_split_scan.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/triton_split_scan.py new file mode 100644 index 0000000000000000000000000000000000000000..0abee5439393980560347aa07f6baf3f24f3e35f --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/triton_split_scan.py @@ -0,0 +1,224 @@ +# mypy: allow-untyped-defs +import functools +from typing import Union + +import sympy + +from torch._inductor import config +from torch._inductor.codegen.simd import IterationRangesRoot, prefix_is_reduction +from torch._inductor.codegen.triton import ( + triton_compute_type, + TritonCSEVariable, + TritonKernel, +) +from torch._inductor.runtime.triton_heuristics import SplitScanGrid +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.functions import CeilDiv + +from ..utils import sympy_product + + +class TritonSplitScanKernel(TritonKernel): + """Generates a triton kernel that supports ops.scan calls while also splitting + the reduction dimension over multiple triton programs. + + For this kernel, loop numels will always take the form ``(xdim, rdim)`` + and the grid has the shape ``(CeilDiv(rdim, RBLOCK), xdim)``. Communication + between blocks occurs within a global memory workspace buffer, which + must be zero-filled before launching the kernel. + + Note that generation for ``ops.reduction`` is not supported. + + For details of the communication strategy, see + https://research.nvidia.com/publication/2016-03_single-pass-parallel-prefix-scan-decoupled-look-back + + """ + + def __init__( + self, + tiling: dict[str, sympy.Expr], + pid_cache=None, + fixed_config=None, + **kwargs, + ) -> None: + assert pid_cache is None, "not supported" + assert fixed_config is None, "not supported" + super().__init__( + tiling, + **kwargs, + ) + self.no_x_dim = True + + def should_use_persistent_reduction(self) -> bool: + return False + + def should_use_cooperative_reduction(self) -> bool: + return False + + def initialize_range_tree(self, pid_cache): + prefixes = ["y", "x", "r0_"] + assert len(self.numels) <= len(prefixes), ( + "z dimension not supported for split scan" + ) + active_prefixes = prefixes[len(prefixes) - len(self.numels) :] + + grid_dims = {"r0_": 0, "x": 1, "y": 2} + for prefix in active_prefixes: + numel = self.numels[prefix] + tensor_dim = 0 if prefix_is_reduction(prefix) else None + grid_dim = grid_dims[prefix] + self.range_trees.append( + IterationRangesRoot( + f"{prefix}index", + numel, + prefix, + grid_dim, + self, # type: ignore[arg-type] + pid_cache=pid_cache, + is_loop=False, + tensor_dim=tensor_dim, + grid_dim=grid_dim, + has_zdim=False, + ) + ) + + def reduction(self, dtype, src_dtype, reduction_type, value): + raise NotImplementedError("NYI TritonSplitDimKernel reductions") + + def scan(self, dtypes, combine_fn, values): + """ + Perform an associative scan on 'values'. + """ + import triton.language as tl + + (dtype,) = dtypes + (value,) = values + + compute_type = triton_compute_type(dtype) + compute_type_triton = getattr(tl, compute_type[3:]) + + element_nbits = compute_type_triton.primitive_bitwidth + + scratch_type = "tl.uint32" if element_nbits <= 16 else "tl.uint64" + scratch_type_triton = getattr(tl, scratch_type[3:]) + scratch_elems_per_block = 3 if element_nbits == 64 else 1 + scratch_nbytes_per_block = scratch_elems_per_block * ( + scratch_type_triton.primitive_bitwidth // 8 + ) + + cse_load = functools.partial(self.cse.generate, self.loads, dtype=dtype) + cse_compute = functools.partial(self.cse.generate, self.compute) + + assert len(self.numels) == 2, "Unexpected tiling" + min_rblock = config.triton.min_split_scan_rblock + reduction_numel = sympy_product( + numel + for prefix, numel in self.numels.items() + if prefix_is_reduction(prefix) + ) + pointwise_numel = sympy_product( + numel + for prefix, numel in self.numels.items() + if not prefix_is_reduction(prefix) + ) + max_blocks = pointwise_numel * CeilDiv(reduction_numel, min_rblock) + nbytes = scratch_nbytes_per_block * max_blocks + scratch_base: Union[str, TritonCSEVariable] + scratch_base, _, offset = self.args.workspace(nelem=nbytes, zero_fill=True) + if offset != 0: + scratch_base = cse_load( + f"{scratch_base} + {self.index_to_str(offset)}", shape=() + ) + runtime_rblocks = cse_load( + f"tl.num_programs({self.range_trees[-1].index})", shape=() + ) + scratch_base = cse_load( + f"{scratch_base}.to(tl.pointer_type({scratch_type})) + xoffset * " + f"{scratch_elems_per_block} * {runtime_rblocks}", + shape=(), + ) + + masks = OrderedSet(f"{tree.prefix}mask" for tree in self.range_trees) + self.filter_masks(masks) + assert not self._load_mask, "ops.scan not supported inside ops.masked" + + value = cse_compute( + f"{value}.to({compute_type})", + dtype=dtype, + shape=value.shape, + ) + value = cse_compute( + f"tl.broadcast_to({value}, {self.dense_size_str()})", + dtype=dtype, + shape=self.dense_size_list(), + ) + + combine_helper_fn = self._lift_helper(combine_fn, (value,), (dtype,)) + dim = self.triton_tensor_ndim() - 1 + assert dim == 0, "" + shape = list(self.dense_size_list()) + del shape[dim] + + block_sum = cse_compute( + f"tl.reduce({value}, {dim}, {combine_helper_fn})", + dtype=dtype, + shape=shape, + ) + exclusive_prefix = self.cse.newvar( + dtype=dtype, + shape=shape, + ) + if element_nbits == 64: + self.compute.splice( + f""" + {exclusive_prefix} = triton_helpers.exclusive_scan_decoupled_lookback_64( + {scratch_base}, + {block_sum}, + {self.iteration_ranges_get_pid(self.range_trees[-1])}, + {combine_helper_fn}, + ) + """, + strip=True, + ) + + else: + assert element_nbits <= 32 + value_as_uint_dtype = f"tl.uint{element_nbits}" + + self.compute.splice( + f""" + {exclusive_prefix} = triton_helpers.exclusive_scan_decoupled_lookback( + {scratch_base}, + {block_sum}, + {self.iteration_ranges_get_pid(self.range_trees[-1])}, + {combine_helper_fn}, + DTYPE_VALUE_AS_UINT={value_as_uint_dtype}, + DTYPE_PACK={scratch_type}, + ) + """, + strip=True, + ) + # Compute final cumsum + block_scan = cse_compute( + f"tl.associative_scan({value}, {dim}, {combine_helper_fn})", + dtype=dtype, + shape=shape, + ) + combined_result = cse_compute( + f"{combine_helper_fn}({exclusive_prefix}, {block_scan})", + dtype=dtype, + shape=shape, + ) + return ( + cse_compute( + f"tl.where(roffset == 0, {block_scan}, {combined_result})", + dtype=dtype, + shape=block_scan.shape, + ), + ) + + def _get_heuristic(self): + return "split_scan" + + def _get_grid_type(self) -> type[SplitScanGrid]: + return SplitScanGrid diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/triton_utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/triton_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..75a34813c876b2e8fa11cb14cac60b761636973e --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/triton_utils.py @@ -0,0 +1,265 @@ +# mypy: allow-untyped-defs +from typing import Any, Optional + +import sympy + +import torch +from torch.utils._sympy.symbol import symbol_is_type, SymT + +from .. import config +from ..runtime.hints import AttrsDescriptorWrapper +from ..utils import _type_of, expr_fits_within_32bit, triton_version_uses_attrs_dict +from ..virtualized import V +from .common import ( + ArgName, + ConstexprArg, + KernelArgType, + SizeArg, + TensorArg, + TMADescriptorArg, + WorkspaceArg, +) + + +def should_unwrap_unspec_arg(name: str): + if V.graph.is_unspec_arg(name): + # Unwrap on all devices except CPU + if V.graph.get_current_device_or_throw().type != "cpu": + return True + # Only unwrap on CPU if the input is not used as an output + if name not in V.graph.mutated_buffers: + return True + return False + + +def signature_of(arg: KernelArgType, *, size_dtype: Optional[str]) -> str: + if isinstance(arg, TensorArg): + # TODO: Remove fp8 special handling when Triton supports PyTorch fp8 dtypes. + # Related PR: https://github.com/triton-lang/triton/pull/2279/ + if arg.dtype == torch.float8_e4m3fn: + typ = "*fp8e4nv" + elif arg.dtype == torch.float8_e5m2: + typ = "*fp8e5" + elif arg.dtype == torch.float8_e4m3fnuz: + typ = "*fp8e4b8" + elif arg.dtype == torch.float8_e5m2fnuz: + typ = "*fp8e5b16" + else: + typ = _type_of(arg.dtype) + if should_unwrap_unspec_arg(arg.buffer): + # had unwrapped 0d tensor as scalar + new_typ = typ.lstrip("*") + if new_typ in ["fp16", "bf16"]: + return "fp32" + else: + return new_typ + else: + return typ + if isinstance(arg, SizeArg): + if arg.expr is None: + if triton_version_uses_attrs_dict(): + # In newer versions of Triton, the signature includes "None" args + # and their type is marked as "constexpr" + return "constexpr" + else: + # In older versions of Triton... + # From triton/runtime/jit.py + # `None` is nullptr. Implicitly convert to *i8. + return "*i8" + elif _arg_equals_1(arg) and triton_version_uses_attrs_dict(): + # In new versions of Triton, if we have an equal-to-1 arg that's marked as a constant, + # it should be marked as "constexpr" in the signature. + return "constexpr" + elif isinstance(arg.expr, (float, sympy.Float)): + return "fp32" + elif isinstance(arg.expr, sympy.Symbol) and symbol_is_type( + arg.expr, (SymT.UNBACKED_FLOAT) + ): + return "fp32" + elif isinstance(arg.expr, bool): + return "i1" + + # if this is a integer + if size_dtype == "tl.int32": + return "i32" + elif size_dtype == "tl.int64": + return "i64" + elif size_dtype is None: + # no hint: we'll see if we know that this is a 32-bit int, and guard if possible. + int_max = torch.iinfo(torch.int32).max + if expr_fits_within_32bit(arg.expr): + V.graph.sizevars.check_leq(arg.expr, int_max) + return "i32" + else: + return "i64" + else: + raise NotImplementedError(f"unhandled size_dtype {size_dtype}") + if isinstance(arg, WorkspaceArg): + return _type_of(arg.dtype) + if isinstance(arg, TMADescriptorArg): + if arg.api_type == "experimental": + return "nvTmaDesc" + else: + # https://github.com/triton-lang/triton/blob/9695baed9b46cf957e08b157bb4133f4a4b331c5/python/triton/runtime/jit.py#L360-L363 + assert arg.api_type == "stable" + assert arg.block_shape is not None + assert arg.dtype is not None + inner = _type_of(arg.dtype)[1:] # strip the `*`: *fp32 -> fp32 + return f"tensordesc<{inner}{list(arg.block_shape)}>" + if isinstance(arg, ConstexprArg): + return "constexpr" + raise NotImplementedError(f"unhandled {type(arg)}: {arg}") + + +def non_constexpr_signature(signature): + new_signature = [] + for arg in signature: + if not isinstance(arg, ConstexprArg): + new_signature.append(arg) + + return new_signature + + +def signature_to_meta( + signature: list[KernelArgType], + *, + size_dtype: Optional[str], + argdefs: list[ArgName], + indices: Optional[list[int]] = None, + is_template: bool = False, +) -> dict[str, str]: + if indices is None: + indices = list(range(len(signature))) + + def _decide_tl_dtype(arg): + # Even if the ks0 symbol itself is within tl.int32 range, it's + # risky to use tl.int32 dtype since we may have ks0*ks1 later + # for kernels like torch.mean when dynamic shape is enabled. + # + # Check config.triton.use_block_ptr, since Triton block pointer + # does not support 64bit indexing: + # https://gist.github.com/shunting314/6a41c776171720ce4561f202dcde0ad6 + # + # If the triton metadata is for a template, don't use tl.int64 index. + # Templates like flex attention/decoding uses block pointers which + # does not support 64 bit indexing. + if ( + not config.triton.use_block_ptr + and not is_template + and isinstance(arg, SizeArg) + and arg.name.startswith("ks") + ): + return "tl.int64" + return size_dtype + + return { + argdefs[i].name: signature_of(arg, size_dtype=_decide_tl_dtype(arg)) + for i, arg in zip(indices, signature) + } + + +def is_unaligned_buffer(arg: TensorArg): + buf_name = arg.buffer + if buf_name in V.graph.unaligned_buffers: + return True + + if buf_name in V.graph.graph_inputs: + # See Note: [Input Alignment handling in Inductor] + # For graph inputs that is not recorded in V.graph.unaligned_buffers, + # we know for sure the tensor is aligned. + return False + + if buf_name in V.graph.constants: + # all constants are assumed to be aligned + return False + + if V.graph.scheduler: + layout = V.graph.scheduler.get_buffer_layout(buf_name) + else: + buffer = V.graph.try_get_buffer(buf_name) + # output arg + if not buffer: + assert buf_name == V.kernel.output_node.name + layout = V.kernel.output_node.layout + else: + layout = buffer.get_layout() + + if isinstance(layout, torch._inductor.ir.NonOwningLayout): + return not layout.maybe_guard_aligned() + else: + return False + + +def _arg_equals_1(arg: KernelArgType) -> bool: + return ( + isinstance(arg, SizeArg) + and isinstance(arg.expr, (int, sympy.Integer)) + and V.graph.sizevars.statically_known_equals(arg.expr, 1) # type: ignore[arg-type] + ) + + +def equal_1_arg_indices( + args: list[KernelArgType], + *, + indices: Optional[list[int]] = None, +) -> tuple[int, ...]: + if indices is None: + indices = list(range(len(args))) + + equal_to_1 = tuple(i for i, arg in zip(indices, args) if _arg_equals_1(arg)) + + return equal_to_1 + + +def config_of( + args: list[KernelArgType], + *, + indices: Optional[list[int]] = None, +) -> Any: + if indices is None: + indices = list(range(len(args))) + + def is_aligned(x: KernelArgType, alignment: int, include_tensor: bool) -> bool: + """ + Roughly follow triton code here: + https://github.com/triton-lang/triton/blob/5282ed890d453e10b9ee30076ef89115dd197761/python/triton/runtime/jit.py#L208-L222 + """ + if isinstance(x, TensorArg): + if include_tensor: + offset_aligned = V.graph.sizevars.statically_known_multiple_of( + x.offset * x.dtype.itemsize, + alignment, # type: ignore[arg-type] + ) + return offset_aligned and not is_unaligned_buffer(x) + else: + return False + if isinstance(x, SizeArg): + # TODO(voz): These are kinda redundant, if we can solve out statically_known_multiple_of with + # _maybe_evaluate_static... + if x.name.startswith("load_seed_offset"): + return False + if x.expr is None: + return False + if isinstance(x.expr, float): + return False + return V.graph.sizevars.statically_known_multiple_of(x.expr, alignment) # type: ignore[arg-type] + if isinstance(x, WorkspaceArg): + # We allocate the workspace ourselves, so it is always aligned + return True + if isinstance(x, (TMADescriptorArg, ConstexprArg)): + return False + raise NotImplementedError(f"unhandled {type(x)}: {x}") + + if config.triton.divisible_by_16: + divisible_by_16 = tuple( + i + for i, arg in zip(indices, args) + if is_aligned(arg, alignment=16, include_tensor=True) + ) + else: + divisible_by_16 = () + + equal_to_1 = equal_1_arg_indices(args, indices=indices) + + # pyrefly: ignore [bad-argument-type] + return AttrsDescriptorWrapper(divisible_by_16, equal_to_1) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/wrapper.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/wrapper.py new file mode 100644 index 0000000000000000000000000000000000000000..c5b62bbee97c2f1d81fa7bf6a12599930a920662 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/wrapper.py @@ -0,0 +1,3950 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import collections +import contextlib +import dataclasses +import dis +import functools +import inspect +import logging +import operator +import random +import re +import tempfile +from collections.abc import Callable +from itertools import chain, count +from typing import Any, Optional, TYPE_CHECKING, Union + +import sympy +from sympy import Expr + +import torch +import torch._ops +import torch.utils._pytree as pytree +from torch import dtype as torch_dtype +from torch._dynamo.utils import counters, dynamo_timed +from torch._inductor.codegen.debug_utils import DebugPrinterManager +from torch._inductor.codegen.multi_kernel import MultiKernelState +from torch._inductor.runtime.runtime_utils import cache_dir +from torch._library.opaque_object import is_opaque_value_type +from torch._logging import trace_structured +from torch.fx.experimental.symbolic_shapes import ( + CallMethodKey, + ConvertIntKey, + DivideByKey, + resolve_unbacked_bindings, + SymTypes, +) +from torch.fx.node import _get_qualified_name +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.singleton_int import SingletonInt +from torch.utils._sympy.symbol import symbol_is_type, SymT + +from .. import async_compile, config, ir +from ..codecache import output_code_log +from ..ir import IRNode, ReinterpretView +from ..runtime import triton_heuristics +from ..runtime.hints import DeviceProperties +from ..utils import ( + cache_on_self, + DelayReplaceLine, + get_benchmark_name, + get_dtype_size, + IndentedBuffer, + is_codegen_graph_partition_subgraph, + is_using_cudagraph_partition, + LineContext, + sympy_product, + sympy_str, + sympy_subs, + triton_version_uses_attrs_dict, +) +from ..virtualized import V +from .common import ( + ArgName, + CodeGen, + DeferredLine, + PythonPrinter, + WorkspaceArg, + WorkspaceZeroMode, +) +from .cpp_utils import cexpr +from .triton_utils import config_of, should_unwrap_unspec_arg, signature_to_meta + + +if TYPE_CHECKING: + from collections.abc import Iterator, Sequence + + import triton + + from ..graph import GraphLowering + from ..ir import ExternKernel + from ..scheduler import BaseSchedulerNode + from .wrapper_fxir import FxConverter + + +log = logging.getLogger(__name__) + +pexpr = PythonPrinter().doprint + + +ReuseKey = tuple[torch.device, torch.dtype, str, bool] +BufferLike = Union[ir.Buffer, WorkspaceArg] +FxConversionFunc = Callable[["WrapperLine"], None] + + +def buffer_reuse_key(node: BufferLike) -> ReuseKey: + storage_size = V.graph.get_allocation_storage_size(node) + alignment = node.get_name() not in V.graph.unaligned_buffers + return ( + node.get_device_or_error(), + node.get_dtype(), + # NB: this is symbolic so that we don't try to reuse a buffer + # for s0 for s1, just because they happen to share the same + # size hint + sympy_str(V.graph.sizevars.simplify(storage_size)), + alignment, + ) + + +def can_match_buffer_size(input_buf: BufferLike, output_buf: BufferLike): + # Return True if input_buf can be re-inplaced for output_buf. + # This differs from `buffer_reuse_key` for general buffer reuse. + if input_buf.get_device_or_error() != output_buf.get_device_or_error(): + return False + + if input_buf.get_dtype() != output_buf.get_dtype(): + return False + + input_size = V.graph.sizevars.simplify( + V.graph.get_allocation_storage_size(input_buf) + ) + output_size = V.graph.sizevars.simplify( + V.graph.get_allocation_storage_size(output_buf) + ) + + if ( + # NB: this is symbolic so that we don't try to reuse a buffer + # for s0 for s1, just because they happen to share the same + # size hint + sympy_str(input_size) == sympy_str(output_size) + ) or ( + # statically known that 0.95 * input_size <= output_size <= input_size + V.graph.sizevars.statically_known_geq(output_size, 0.95 * input_size) + and V.graph.sizevars.statically_known_leq(output_size, input_size) + ): + return True + + return False + + +def codegen_reinterpret_view_helper(data): + """ + Collapse a chain of ReinterpretView <- StorageBox + <- ReinterpretView <- StorageBox.... <- buffer wrappers if every layer + has the same offset as the innermost (base) buffer. + + Returns: + (size, stride, offset, dtype, collapsible: bool) + """ + if isinstance(data, ir.Buffer): + lay = data.get_layout() + return lay.size, lay.stride, lay.offset, lay.dtype, True + + layouts: list[Any] = [] + cur = data + while isinstance(cur, (ir.TensorBox, ir.StorageBox, ir.ReinterpretView)): + lay = cur.get_layout() + if lay is None: + return None, None, None, None, False + layouts.append(lay) + cur = cur.data # unwrap + + if not isinstance(cur, ir.Buffer): + return None, None, None, None, False + + # All wrapper offsets must match base offset to be collapsible + for lay in layouts: + if lay.offset != cur.get_layout().offset: + return None, None, None, None, False + + base_lay = cur.get_layout() + return base_lay.size, base_lay.stride, base_lay.offset, base_lay.dtype, True + + +# TODO: Move to a well known place +TritonMetaParams = dict[str, int] +TritonGrid = Union[ + tuple[Union[int, sympy.Expr], ...], Callable[[TritonMetaParams], tuple[int, ...]] +] + + +def user_defined_kernel_grid_fn_code( + name: str, + configs: list[triton.Config], # type: ignore[name-defined] + grids: list[TritonGrid], + wrapper: Optional[PythonWrapperCodegen] = None, + original_fxnode_name: Optional[str] = None, +) -> tuple[str, str]: + output = IndentedBuffer() + + def _convert_to_sympy_expr(item: Union[int, sympy.Expr]) -> sympy.Expr: + return item if isinstance(item, sympy.Expr) else sympy.Integer(item) + + def determine_grid( + grid: TritonGrid, + example_grid: Optional[TritonGrid] = None, + ): + """ + This function return a tuple of two values: the first one is for the real grid + which is used in the generated code; the second one is an example grid with + concreate values which is used in the autotune block to run the generated + kernels at compile time. + """ + if wrapper is None or callable(grid): + # return as-is when used in eager mode or when grid is callable + return grid, grid + # Grid contains ints/Expr, so utilize wrapper's expr printer for codegen + sympy_grid = tuple(_convert_to_sympy_expr(g) for g in grid) + if not example_grid: + example_grid = sympy_grid + return ( + wrapper.codegen_python_shape_tuple(sympy_grid), + ( + wrapper.codegen_python_shape_tuple( + tuple( + wrapper.generate_example_arg_value(g, type(g)) + for g in example_grid # type: ignore[union-attr] + ) + ) + if config.triton.autotune_at_compile_time + else None + ), + ) + + def writeline(line: str, example_grid: Optional[str] = None): + output.writeline(line) + if ( + wrapper + and config.triton.autotune_at_compile_time + and name not in wrapper.kernel_autotune_names + ): + wrapper.kernel_autotune_calls.writeline(example_grid or line) + + fn_name = f"grid_wrapper_for_{name}" + writeline(f"def {fn_name}(meta):") + kernel_autotune_calls_indent = ( + wrapper.kernel_autotune_calls.indent() + if wrapper and config.triton.autotune_at_compile_time + else contextlib.nullcontext() + ) + with output.indent(), kernel_autotune_calls_indent: + if ( + config.triton.autotune_at_compile_time + and original_fxnode_name + and V.graph.autotuning_grids + and original_fxnode_name in V.graph.autotuning_grids + ): + example_grids = V.graph.autotuning_grids[original_fxnode_name] + else: + example_grids = [None] * len(grids) + if len(grids) == 1: + grid, example_grid = determine_grid(grids[0], example_grids[0]) + writeline(f"return {grid}", f"return {example_grid}") + else: + assert len(grids) > 1 + assert len(grids) == len(configs) + seen: OrderedSet[str] = OrderedSet() + # sort the configs from the largest # of kwargs to the smallest to + # emit the grids in the order of (approximately) decreasing specificity + # TODO(aakhundov): the sorting below is generally not sufficient, so + # maybe we'll need to restrict the supported cases to identical kwarg + # names in all autotuning configs. + for grid, c, example_grid in sorted( + zip(grids, configs, example_grids), + key=lambda x: len(x[1].kwargs), + reverse=True, + ): + guardslist = [] + if c.kwargs: + # Remove AMD specific kwargs. + for kwarg in c.kwargs: + if kwarg not in [ + "matrix_instr_nonkdim", + "waves_per_eu", + "kpack", + ]: + guardslist.append(f"meta['{kwarg}'] == {c.kwargs[kwarg]}") + if guardslist: + guards = " and ".join(guardslist) + else: + guards = "True" # for configs with empty kwargs + grid, example_grid = determine_grid(grid, example_grid) + statement = f"if {guards}: return {grid}" + if statement in seen: + continue + seen.add(statement) + writeline(statement, f"if {guards}: return {example_grid}") + + return fn_name, output.getvalue() + + +def user_defined_triton_kernel_transitive_closure_source_code(kernel) -> str: + """ + Given a triton kernel function pointer collect the transitive closure of + its dependencies + """ + compile_wrapper = IndentedBuffer() + compile_wrapper.splice(kernel.src, strip=True) + + # Also include any possible kernel being called indirectly + import triton + from triton import JITFunction # type: ignore[name-defined, attr-defined] + from triton.language import constexpr # type: ignore[name-defined] + + # global constexpr vars handled above + symbols_included = OrderedSet([kernel.__name__]) + + def traverse(cur_kernel): + # here we extract the unqualified names (i.e., not attributes and + # without prepended module name) loaded in the kernel code, which + # are matched with the co_names and __globals__ below to codegen + # the respective imports necessary for the kernel compilation + unqualified_loads = OrderedSet( + inst.argval + for inst in dis.Bytecode(cur_kernel.fn) + if inst.opname == "LOAD_GLOBAL" + ) + global_annotations = cur_kernel.fn.__globals__.get("__annotations__", {}) + for symbol_name in cur_kernel.fn.__code__.co_names: + if symbol_name in symbols_included: + continue + if symbol_name in cur_kernel.fn.__globals__: + symbol = cur_kernel.fn.__globals__[symbol_name] + if isinstance(symbol, JITFunction): + compile_wrapper.newline() + compile_wrapper.writeline("@triton.jit") + # pyrefly: ignore # missing-attribute + compile_wrapper.splice(symbol.src, strip=True) + symbols_included.add(symbol_name) + traverse(symbol) + elif hasattr(triton, "constexpr_function") and isinstance( + # pyrefly: ignore # missing-attribute + symbol, + # pyrefly: ignore # missing-attribute + triton.runtime.jit.ConstexprFunction, + ): + compile_wrapper.newline() + compile_wrapper.writeline("@triton.constexpr_function") + compile_wrapper.splice(symbol.src, strip=True) + symbols_included.add(symbol_name) + traverse(symbol) + elif isinstance(symbol, (int, str, bool, constexpr)): + compile_wrapper.newline() + if isinstance(symbol, constexpr): + symbol_str = f"tl.constexpr({symbol.value!r})" + else: + symbol_str = f"{symbol!r}" + if annotation := global_annotations.get(symbol_name): + if isinstance(annotation, type): + annotation_code = ( + f": {annotation.__module__}.{annotation.__name__}" + ) + else: + annotation_code = f": {annotation!r}" + compile_wrapper.writeline( + f"{symbol_name}{annotation_code} = {symbol_str}" + ) + else: + compile_wrapper.writeline(f"{symbol_name} = {symbol_str}") + symbols_included.add(symbol_name) + elif ( + symbol_name in unqualified_loads + and symbol_name != "tl" # already imported + and hasattr(symbol, "__module__") + # only codegen imports from triton; JITFunctions + # imported from other modules will be codegened + # in the separate branch above + and symbol.__module__.startswith("triton") + ): + # a global symbol imported from triton is referenced + # without module qualification (i.e., `store` instead + # of `tl.store`): need to codegen an import + compile_wrapper.writeline( + f"from {symbol.__module__} import {symbol.__name__} as {symbol_name}" + ) + symbols_included.add(symbol_name) + + traverse(kernel) + return compile_wrapper.getvalue() + + +@dataclasses.dataclass +class SymbolicCallArg: + inner: sympy.Symbol + # the original symbolic expression represented by inner + inner_expr: sympy.Expr + + def __str__(self): + return str(self.inner) + + +class MemoryPlanningState: + def __init__(self): + super().__init__() + self.reuse_pool: dict[ReuseKey, list[FreeIfNotReusedLine]] = ( + collections.defaultdict(list) + ) + self.total_allocated_buffer_size: int = 0 + + def __contains__(self, key: ReuseKey) -> bool: + return bool(self.reuse_pool.get(key, None)) + + def pop(self, key: ReuseKey) -> FreeIfNotReusedLine: + item = self.reuse_pool[key].pop() + assert not item.is_reused + return item + + def push(self, key: ReuseKey, item: FreeIfNotReusedLine) -> None: + assert not item.is_reused + self.reuse_pool[key].append(item) + + +class WrapperLine: + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + raise NotImplementedError(f"FX codegen not yet supported for type {type(self)}") + + +@dataclasses.dataclass +class EnterSubgraphLine(WrapperLine): + wrapper: PythonWrapperCodegen + graph: GraphLowering + + def __post_init__(self) -> None: + self.wrapper.push_computed_sizes(self.wrapper.computed_sizes) + + def codegen(self, code: IndentedBuffer) -> None: + self.wrapper.push_codegened_graph(self.graph) + code.do_indent() + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_enter_subgraph + + +@dataclasses.dataclass +class ConditionalLine(WrapperLine): + wrapper: PythonWrapperCodegen + node: ir.Conditional + + def codegen(self, code: IndentedBuffer) -> None: + raise NotImplementedError("Only supports FX codegen") + + @staticmethod + def codegen_fx(converter: FxConverter) -> FxConversionFunc: + return converter._generate_conditional + + +@dataclasses.dataclass +class CommentLine(WrapperLine): + line: LineContext + + def codegen(self, code: IndentedBuffer) -> None: + code.writeline(self.line) + + @staticmethod + def codegen_fx(converter: FxConverter) -> FxConversionFunc: + return converter._generate_comment + + +@dataclasses.dataclass +class DynamicScalarLine(WrapperLine): + wrapper: PythonWrapperCodegen + node: ir.DynamicScalar + + def codegen(self, code: IndentedBuffer) -> None: + self.wrapper._codegen_dynamic_scalar(self.node) + + @staticmethod + def codegen_fx(converter: FxConverter) -> FxConversionFunc: + return converter._generate_dynamic_scalar + + +@dataclasses.dataclass +class ExitSubgraphLine(WrapperLine): + wrapper: PythonWrapperCodegen + + def __post_init__(self) -> None: + self.wrapper.computed_sizes = self.wrapper.pop_computed_sizes() + + def codegen(self, code: IndentedBuffer) -> None: + self.wrapper.pop_codegened_graph() + code.do_unindent() + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_exit_subgraph + + +@dataclasses.dataclass +class EnterDeviceContextManagerLine(WrapperLine): + device_idx: int + last_seen_device_guard_index: Optional[int] + + def codegen(self, code: IndentedBuffer) -> None: + if V.graph.cpp_wrapper: + code.writeline("\n") + if V.graph.aot_mode: + # In AOT mode, we have a stream provided as a param. A stream is + # associated with a device, so we never expect the device to change. + # CUDAStreamGuard sets the stream and the device. + if self.last_seen_device_guard_index is None: + code.writeline( + f"{V.graph.device_ops.cpp_aoti_stream_guard()} stream_guard(stream, this->device_idx_);" + ) + else: + assert self.last_seen_device_guard_index == self.device_idx, ( + "AOTInductor only supports running on one CUDA device" + ) + else: + if self.last_seen_device_guard_index is None: + code.writeline( + f"{V.graph.device_ops.cpp_aoti_device_guard()} device_guard({self.device_idx});" + ) + else: + code.writeline(f"device_guard.set_index({self.device_idx});") + else: + # Note _DeviceGuard has less overhead than device, but only accepts + # integers + code.writeline(f"with {V.graph.device_ops.device_guard(self.device_idx)}:") + code.do_indent() + code.writeline(V.graph.device_ops.set_device(self.device_idx)) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_enter_device_context_manager + + +class ExitDeviceContextManagerLine(WrapperLine): + def codegen(self, code: IndentedBuffer) -> None: + if not V.graph.cpp_wrapper: + code.do_unindent() + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_exit_device_context_manager + + +@dataclasses.dataclass +class ExternKernelAllocLine(WrapperLine): + wrapper: PythonWrapperCodegen + node: ir.ExternKernelAlloc + + def codegen(self, code: IndentedBuffer) -> None: + node = self.node + args = [*node.codegen_args(), *node.codegen_kwargs()] + self.wrapper._generate_extern_kernel_alloc_helper(self.node, args) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_extern_kernel_alloc + + +@dataclasses.dataclass +class ExternKernelOutLine(WrapperLine): + wrapper: PythonWrapperCodegen + node: ir.ExternKernelOut + + def codegen(self, code: IndentedBuffer) -> None: + node = self.node + args = [*node.codegen_args(), *node.codegen_kwargs(skip_out=True)] + kernel_name = node.get_kernel_name() + if ( + V.graph.cpp_wrapper + and node.cpp_kernel_name == "torch::inductor::_mm_plus_mm" + ): + # For https://github.com/pytorch/pytorch/issues/128474 + kernel_name = "aoti_torch__mm_plus_mm_out" + else: + kernel_name = node.get_kernel_name() + device = d.type if (d := node.get_device()) else V.graph.device_type + self.wrapper._generate_extern_kernel_out_helper( + kernel_name, + node.codegen_reference(), + node.output_view.codegen_reference() if node.output_view else None, + args, + device, + self.node.get_stack_traces(), + ) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_extern_kernel_out + + +@dataclasses.dataclass +class FreeLine(WrapperLine): + wrapper: PythonWrapperCodegen + node: Union[BufferLike, ir.TorchBindObject] + + def codegen(self, code: IndentedBuffer) -> None: + assert self.node.get_name() not in V.graph.removed_buffers + code.writeline(self.wrapper.make_buffer_free(self.node)) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_free + + +@dataclasses.dataclass +class KernelCallLine(WrapperLine): + wrapper: PythonWrapperCodegen + kernel_name: str + call_args: tuple[Any, ...] + raw_keys: tuple[Any, ...] + raw_args: tuple[Any, ...] + arg_types: list[str] + triton: bool + triton_meta: dict[str, Any] + device: torch.device + graph_name: str + original_fxnode_name: str + + def codegen(self, code: IndentedBuffer) -> None: + self.wrapper._generate_kernel_call_helper( + self.kernel_name, + self.call_args, + triton=self.triton, + arg_types=self.arg_types, + raw_keys=self.raw_keys, + raw_args=self.raw_args, + triton_meta=self.triton_meta, + device=self.device, + graph_name=self.graph_name, + original_fxnode_name=self.original_fxnode_name, + ) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_kernel_call + + +@dataclasses.dataclass +class KernelDefinitionLine(WrapperLine): + wrapper: PythonWrapperCodegen + kernel_name: str + kernel_body: str + metadata: Optional[str] = None + gpu: bool = True + cpp_definition: Optional[str] = None + + def codegen(self, code: IndentedBuffer) -> None: + self.wrapper._define_kernel_helper( + self.kernel_name, + self.kernel_body, + metadata=self.metadata, + gpu=self.gpu, + cpp_definition=self.cpp_definition, + ) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_kernel_definition + + +@dataclasses.dataclass +class MemoryPlanningLine(WrapperLine): + wrapper: PythonWrapperCodegen + + def plan(self, state: MemoryPlanningState) -> MemoryPlanningLine: + """First pass to find reuse""" + return self + + def codegen(self, code: IndentedBuffer) -> None: + """Second pass to output code""" + + def __str__(self) -> str: + """ + Emits a string representation that fits on one line. + """ + args: list[str] = [] + for field in dataclasses.fields(self): + if field.name == "wrapper": + continue + val = getattr(self, field.name) + args.append( + f"{field.name}={val.get_name() if field.type is ir.Buffer else val}" + ) + return f"{type(self).__name__}({', '.join(args)})" + + +class EfficientPeakEstimate: + def __init__(self): + from ..memory import estimate_peak_memory, get_freeable_input_buf + + scheduler_nodes = V.graph.scheduler.nodes + graph_inputs = OrderedSet(V.graph.graph_inputs.keys()) + graph_outputs = OrderedSet(V.graph.get_output_names()) + names_to_freeable_bufs = get_freeable_input_buf(scheduler_nodes, graph_inputs) + self.overall_peak_memory, peak_by_scheduler_node = estimate_peak_memory( + scheduler_nodes, + names_to_freeable_bufs, + graph_outputs, + ) + + from .segmented_tree import SegmentedTree + + self.segmented_tree = SegmentedTree( + peak_by_scheduler_node, operator.add, max, 0 + ) + + def _get_size(self, node: BufferLike) -> int: + return V.graph.sizevars.size_hint( + V.graph.get_allocation_storage_size(node), fallback=0 + ) * get_dtype_size(node.get_dtype()) + + def peak_between(self, line_a: FreeIfNotReusedLine, line_b: AllocateLine): + return self.segmented_tree.summarize_range( + line_a.scheduler_node_index + 1, line_b.scheduler_node_index - 1 + ) + + def update_peak_between(self, line_a: FreeIfNotReusedLine, line_b: AllocateLine): + if line_a.scheduler_node_index + 1 == line_b.scheduler_node_index: + return + self.segmented_tree.update_range( + line_a.scheduler_node_index + 1, + line_b.scheduler_node_index - 1, + self._get_size(line_b.node), + ) + + +@dataclasses.dataclass +class AllocateLine(MemoryPlanningLine): + node: BufferLike + + def __post_init__(self): + assert V.graph.scheduler.current_node is not None + self.scheduler_node_index = V.graph.scheduler.nodes.index( + V.graph.scheduler.current_node + ) + + def should_reuse_buffer(self, free_line: FreeIfNotReusedLine, size: int) -> bool: + if free_line.scheduler_node_index + 1 == self.scheduler_node_index: + return True + overall_peak_memory = self.wrapper.estimate_peak.overall_peak_memory + peak_memory_in_range = self.wrapper.estimate_peak.peak_between(free_line, self) + new_peak_memory = size + peak_memory_in_range + return new_peak_memory <= overall_peak_memory + + def plan(self, state: MemoryPlanningState) -> MemoryPlanningLine: + if self.node.get_name() in V.graph.removed_buffers: + return NullLine(self.wrapper) + + # try to reuse a recently freed buffer + key = buffer_reuse_key(self.node) + if config.allow_buffer_reuse and key in state: + free_line = state.pop(key) + size = V.graph.sizevars.size_hint( + V.graph.get_allocation_storage_size(self.node), fallback=0 + ) * get_dtype_size(self.node.get_dtype()) + if self.should_reuse_buffer(free_line, size): + free_line.is_reused = True + self.wrapper.estimate_peak.update_peak_between(free_line, self) + return ReuseLine(self.wrapper, free_line.node, self.node) + else: + state.push(key, free_line) + return self + + if self.node.get_device_or_error().type == "cpu": + static_shape = self.wrapper.static_shape_for_buffer_or_none(self.node) + if static_shape is not None: + state.total_allocated_buffer_size += int( + functools.reduce(operator.mul, static_shape, 1) + ) + + return self + + def codegen(self, code: IndentedBuffer) -> None: + assert self.node.get_name() not in V.graph.removed_buffers + line = self.wrapper.make_buffer_allocation(self.node) + code.writeline(line) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_allocate + + +@dataclasses.dataclass +class FreeIfNotReusedLine(MemoryPlanningLine): + node: BufferLike + is_reused: bool = False + + def __post_init__(self): + assert V.graph.scheduler.current_node is not None + self.scheduler_node_index = V.graph.scheduler.nodes.index( + V.graph.scheduler.current_node + ) + + def plan(self, state: MemoryPlanningState) -> MemoryPlanningLine: + if len(self.node.get_inputs_that_alias_output()) > 0: + return self + if isinstance(self.node.layout, ir.MultiOutputLayout): + return self + assert not self.is_reused + if self.node.get_name() in V.graph.removed_buffers: + return NullLine(self.wrapper) + if config.allow_buffer_reuse: + state.push(buffer_reuse_key(self.node), self) + return self + + def codegen(self, code: IndentedBuffer) -> None: + assert self.node.get_name() not in V.graph.removed_buffers + if not self.is_reused: + code.writeline(self.wrapper.make_buffer_free(self.node)) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_free_if_not_reused + + +@dataclasses.dataclass +class ReinterpretLine(MemoryPlanningLine): + node: BufferLike + reused_as: BufferLike + layout: ir.Layout + + def plan(self, state: MemoryPlanningState) -> MemoryPlanningLine: + return self + + def codegen(self, code: IndentedBuffer) -> None: + assert isinstance(self.layout, ir.NonOwningLayout) + assert isinstance(self.layout.view, ir.ReinterpretView) + self.wrapper.codegen_deferred_allocation( + self.reused_as.get_name(), self.layout.view + ) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_reinterpret + + +@dataclasses.dataclass +class ReuseLine(MemoryPlanningLine): + node: BufferLike + reused_as: BufferLike + delete_old: bool = True + + def plan(self, state: MemoryPlanningState) -> MemoryPlanningLine: + if self.node.get_name() in V.graph.removed_buffers: + assert self.reused_as.get_name() in V.graph.removed_buffers + return NullLine(self.wrapper) + assert self.reused_as.get_name() not in V.graph.removed_buffers + return self + + def codegen(self, code: IndentedBuffer) -> None: + assert self.node.get_name() not in V.graph.removed_buffers + assert self.reused_as.get_name() not in V.graph.removed_buffers + code.writeline( + self.wrapper.make_buffer_reuse(self.node, self.reused_as, self.delete_old) + ) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_reuse + + +class NullLine(MemoryPlanningLine): + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_null + + +@dataclasses.dataclass +class CommBufferLine(WrapperLine): + wrapper: PythonWrapperCodegen # type: ignore[name-defined] # noqa: F821 + node: ir.Buffer + + @property + def size(self) -> int: + from torch._inductor.utils import is_symbolic + + numel = self.node.get_numel() + dtype = self.node.get_dtype() + if is_symbolic(numel): + raise AssertionError( + f"The size of a comm buffer can't be symbolic: {self.node}" + ) + return int(numel) * dtype.itemsize + + @property + def comm_buffer_type(self) -> ir.CommBufferType: + layout = self.node.get_output_spec() + assert isinstance(layout, ir.CommBufferLayout) + return layout.comm_buffer_type + + @property + def group_name(self) -> str: + layout = self.node.get_output_spec() + assert isinstance(layout, ir.CommBufferLayout) + return layout.group_name + + +@dataclasses.dataclass +class CommBufferAllocateLine(CommBufferLine): + def codegen(self, code: IndentedBuffer) -> None: + assert self.node.get_name() not in V.graph.removed_buffers + name = self.node.get_name() + device = self.node.get_device() + dtype = self.node.get_dtype() + shape = tuple(self.node.get_size()) + stride = tuple(self.node.get_stride()) + code.writeline( + self.make_allocation_line( + self.comm_buffer_type, + self.group_name, + self.wrapper, + name, + device, + dtype, + shape, + stride, + ) + ) + + @staticmethod + def make_allocation_line( + comm_buffer_type, group_name, wrapper, name, device, dtype, shape, stride + ): + if comm_buffer_type == ir.CommBufferType.SYMM_MEM: + return ( + f"{name} = empty_strided_p2p(" + f"{wrapper.codegen_shape_tuple(shape)}, " + f"{wrapper.codegen_shape_tuple(stride)}, " + f"{dtype}, " + f'torch.device("cuda:{device.index}"), ' + f'group_name="{group_name}", ' + f"alloc_id={random.randint(0, 2**64 - 1)})" + ) + else: + raise NotImplementedError( + f"Unsupported comm buffer type: {comm_buffer_type}" + ) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_comm_buffer_allocate + + +@dataclasses.dataclass +class CommBufferFreeLine(CommBufferLine): + def codegen(self, code: IndentedBuffer) -> None: + line = self.wrapper.make_buffer_free(self.node) + code.writeline(f"{line} # {self.comm_buffer_type.value} buffer free") + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_comm_buffer_free + + +@dataclasses.dataclass +class MultiOutputLine(WrapperLine): + """ + Given a MultiOutputLayout buffer, indexes actual buffer(s) from the result. + """ + + wrapper: PythonWrapperCodegen + result_name: str + arg_name: str + indices: Sequence[Any] + + def codegen(self, code: IndentedBuffer) -> None: + def codegen_list_tuple_access(basename, indices): # type: ignore[no-untyped-def] + if len(indices) > 0: + itype, i = indices[0] + if issubclass(itype, list): + return codegen_list_tuple_access(f"{basename}[{i}]", indices[1:]) + elif issubclass(itype, tuple): + # cpp wrapper code needs to use std::get<> to access a tuple + tuple_access = self.wrapper.codegen_tuple_access( + basename, self.result_name, str(i) + ) + return codegen_list_tuple_access(tuple_access, indices[1:]) + elif issubclass(itype, dict): + return codegen_list_tuple_access(f"{basename}['{i}']", indices[1:]) + else: + raise AssertionError("non supported index type: ", itype) + else: + return basename + + value = codegen_list_tuple_access(self.arg_name, self.indices) + code.writeline( + f"{self.wrapper.declare}{self.result_name} = {value}{self.wrapper.ending}" + ) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_multi_output + + +@dataclasses.dataclass +class IndexPutFallbackLine(WrapperLine): + wrapper: PythonWrapperCodegen + node: ir.IndexPutFallback + indices: list[Optional[ir.IRNode]] + + def codegen(self, code: IndentedBuffer) -> None: + node = self.node + assert ir.is_node_sequence(node.inputs) + (x, values) = (t.codegen_reference() for t in node.inputs[:2]) + indices = [ + idx.codegen_reference() if idx else self.wrapper.none_str + for idx in self.indices + ] + + self.wrapper._generate_index_put_fallback( + node.get_kernel_name(), x, indices, values, *node.codegen_const_args() + ) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_index_put_fallback + + +@dataclasses.dataclass +class ScatterFallbackLine(WrapperLine): + wrapper: PythonWrapperCodegen + node: ir.ScatterFallback + + def codegen(self, code: IndentedBuffer) -> None: + node = self.node + assert ir.is_node_sequence(node.inputs) + if node.src_is_tensor: + (x, index, src) = (t.codegen_reference() for t in node.inputs) + else: + (x, index) = (t.codegen_reference() for t in node.inputs) + src = node.constant_args[1] + device = d.type if (d := node.get_device()) else V.graph.device_type + self.wrapper._generate_scatter_fallback( + x, + [x, node.constant_args[0], index, src], + node.cpp_kernel_name, + node.python_kernel_name, + node.src_is_tensor, + node.kwargs["reduce"], + node.codegen_kwargs(), + device, + ) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_scatter_fallback + + +@dataclasses.dataclass +class SymbolicCallArgLine(WrapperLine): + wrapper: PythonWrapperCodegen + arg: SymbolicCallArg + graph: GraphLowering + + def codegen(self, code: IndentedBuffer) -> None: + self.wrapper._generate_symbolic_call_arg_helper(self.arg, self.graph) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_symbolic_call_arg + + +@dataclasses.dataclass +class UnbackedSymbolDefsLine(WrapperLine): + wrapper: PythonWrapperCodegen + output_name: str + outputs: Any + unbacked_bindings: Optional[dict[sympy.Symbol, pytree.KeyPath]] + + def codegen(self, code: IndentedBuffer) -> None: + self.wrapper._codegen_unbacked_symbol_defs_for_outputs( + self.output_name, self.outputs, self.unbacked_bindings + ) + + def codegen_fx(self, converter: FxConverter) -> FxConversionFunc: + return converter._generate_unbacked_symbol_defs + + +BufferName = str +Line = Union[MemoryPlanningLine, LineContext] + + +class PythonWrapperCodegen(CodeGen): + """ + Generate outer wrapper in Python that calls the kernels. + """ + + supports_caching = True # Whether the output code is cacheable. + + def __init__(self): + super().__init__() + self._names_iter: Iterator[int] = count() + self.args_to_buffers: dict[ + str, Union[None, ir.TensorBox, ir.Buffer, ir.TorchBindObject] + ] = {} + self.imports = IndentedBuffer() + self.header = IndentedBuffer() + self.prefix = IndentedBuffer() + self.suffix = IndentedBuffer() + self.kernel_declarations = IndentedBuffer() + self.wrapper_call = IndentedBuffer() + self.kernel_autotune_defs = IndentedBuffer() + self.kernel_autotune_calls = IndentedBuffer() + self.subgraph_definitions = IndentedBuffer() + self.kernel_autotune_names: OrderedSet[str] = OrderedSet() + # Map key is the kernel argument name; value is a tuple of the resulting example + # tensor name with the kernel where that tensor was most recently used. + self.kernel_autotune_example_args: dict[str, tuple[str, str]] = {} + self.kernel_autotune_tmp_arg_idx: int = 0 + # If the generated source code is exactly the same, reuse the + # pre-existing kernel for it + self.src_to_kernel: dict[str, str] = {} + self.kernel_numel_expr: OrderedSet[tuple[str, GraphLowering]] = OrderedSet() + self.lines: list[Line] = [] + self.declare = "" + self.declare_maybe_reference = "" + self.ending = "" + self.comment = "#" + self.none_str = "None" + self.move_begin = "std::move(" if V.graph.cpp_wrapper else "" + self.move_end = ")" if V.graph.cpp_wrapper else "" + self.last_seen_device_guard_index: Optional[int] = None + self.supports_intermediate_hooks = True + self.user_defined_kernel_cache: dict[tuple[Any, ...], tuple[str, Any]] = {} + self.unbacked_symbol_decls: OrderedSet[str] = ( + OrderedSet() + ) # str of sympy.Symbol + self.computed_sizes: OrderedSet[sympy.Symbol] = OrderedSet() + self.launcher_fn_name = None + # This function can be overridden to change the launcher name + self.set_launcher_fn_name() + + # this is used for tracking which GraphLowering instance---parent graph + # or (nested) subgraph---is currently codegened; the primary use case is + # including the graph instance into a cache key to avoid cross-graph + # caching during lowering of nested subgraphs + self.codegened_graph_stack = [] + self.computed_sizes_stack = [] + + self.write_header() + + if not is_codegen_graph_partition_subgraph(self): + # See [Note: Removed Graph Partition Arguments] + self.write_prefix() + + self.write_kernel_autotune_defs_header() + + if not V.graph.aot_mode: + for name, hashed in V.graph.constant_reprs.items(): + # include a hash so our code cache puts different constants into different files + self.write_constant(name, hashed) + + self.allocated = OrderedSet[BufferName]() + self.freed = OrderedSet[BufferName]() + + # maps from reusing buffer to reused buffer + self.reuses: dict[BufferName, BufferName] = {} + + self.write_get_raw_stream = functools.lru_cache(None)( # type: ignore[assignment] + self.write_get_raw_stream + ) + + @functools.cache + def add_import_once(line: str) -> None: + self.imports.writeline(line) + if config.triton.autotune_at_compile_time: + self.kernel_autotune_calls.writeline(line) + + self.add_import_once = add_import_once + self._metas: dict[str, str] = {} + self._meta_vars: OrderedSet[str] = OrderedSet() + self.multi_kernel_state = MultiKernelState() + self.already_codegened_subgraphs: OrderedSet[str] = OrderedSet() + self.allocated_workspaces: dict[str, Any] = {} + + # intermediate tensor value printing utility + self.debug_printer = DebugPrinterManager( + debug_printer_level=config.aot_inductor.debug_intermediate_value_printer, + use_array_ref=config.aot_inductor.allow_stack_allocation, + ) + + # Additional files that are dependent to the wrapper (ex. cubin files) + self.additional_files = [] + + @staticmethod + def create( + is_subgraph: bool, + subgraph_name: Optional[str], + parent_wrapper: Optional[PythonWrapperCodegen], + partition_signatures: Optional[ir.GraphPartitionSignature] = None, + ): + if is_subgraph: + assert subgraph_name is not None + assert parent_wrapper is not None + return SubgraphPythonWrapperCodegen( + subgraph_name, parent_wrapper, partition_signatures + ) + return PythonWrapperCodegen() + + def set_launcher_fn_name(self) -> None: + # pyrefly: ignore [bad-assignment] + self.launcher_fn_name = "call" + + def write_constant(self, name: str, hashed: str) -> None: + self.header.writeline(f"{name} = None # {hashed}") + + def write_header(self) -> None: + context = torch._guards.TracingContext.try_get() + aot_config_comment = "" + if context is not None and context.aot_graph_name is not None: + aot_config_comment = f"# AOT ID: {context.aot_graph_name}" + inductor_debug_utils = "" + if int(config.aot_inductor.debug_intermediate_value_printer) > 0: + inductor_debug_utils = "from torch._inductor.codegen.debug_utils import _print_debugging_tensor_value_info" + elif torch._inductor.config.test_configs.track_memory_lifecycle: + inductor_debug_utils = "from torch._inductor.runtime.debug_utils import tracked_empty_strided\n" + + self.imports.splice( + f""" + {aot_config_comment} + from ctypes import c_void_p, c_long, c_int + import torch + import math + import random + import os + import tempfile + from math import inf, nan + from cmath import nanj + from torch._inductor.hooks import run_intermediate_hooks + from torch._inductor.utils import maybe_profile + from torch._inductor.codegen.memory_planning import _align as align + from torch import device, empty_strided + from {async_compile.__name__} import AsyncCompile + from torch._inductor.select_algorithm import extern_kernels + {inductor_debug_utils} + """, + strip=True, + ) + self.header.splice( + """ + aten = torch.ops.aten + inductor_ops = torch.ops.inductor + _quantized = torch.ops._quantized + assert_size_stride = torch._C._dynamo.guards.assert_size_stride + assert_alignment = torch._C._dynamo.guards.assert_alignment + empty_strided_cpu = torch._C._dynamo.guards._empty_strided_cpu + empty_strided_cpu_pinned = torch._C._dynamo.guards._empty_strided_cpu_pinned + empty_strided_cuda = torch._C._dynamo.guards._empty_strided_cuda + empty_strided_xpu = torch._C._dynamo.guards._empty_strided_xpu + empty_strided_mtia = torch._C._dynamo.guards._empty_strided_mtia + reinterpret_tensor = torch._C._dynamo.guards._reinterpret_tensor + alloc_from_pool = torch.ops.inductor._alloc_from_pool + async_compile = AsyncCompile() + """, + strip=True, + ) + try: + # Only add empty_strided_p2p() if distributed and SymmetricMemory + # is available + from torch._C._distributed_c10d import _SymmetricMemory # noqa: F401 + + self.header.splice( + """ + empty_strided_p2p = torch._C._distributed_c10d._SymmetricMemory.empty_strided_p2p + """, + strip=True, + ) + except (AttributeError, ImportError): + pass + if config.annotate_training: + self.header.writeline("from torch.cuda import nvtx") + + def include_extra_header(self, header: str): + pass + + def write_kernel_autotune_defs_header(self) -> None: + self.kernel_autotune_defs.splice( + f""" + import torch + from torch._dynamo.testing import rand_strided + from torch._dynamo.utils import preserve_rng_state + from torch._inductor.select_algorithm import AlgorithmSelectorCache + from {async_compile.__name__} import AsyncCompile + + async_compile = AsyncCompile() + generate_example_value = AlgorithmSelectorCache.generate_example_value + empty_strided_cuda = torch._C._dynamo.guards._empty_strided_cuda + empty_strided_xpu = torch._C._dynamo.guards._empty_strided_xpu + """ + ) + + try: + from torch._C import _cuda_getCurrentRawStream # noqa: F401 + + self.kernel_autotune_defs.splice( + """ + get_raw_stream = torch._C._cuda_getCurrentRawStream + """, + strip=True, + ) + except (ImportError, AttributeError): + pass + + @cache_on_self + def write_triton_header_once(self) -> None: + import_str = f""" + import triton + import triton.language as tl + from {triton_heuristics.__name__} import start_graph, end_graph + """ + if config.triton.autotune_at_compile_time: + self.kernel_autotune_calls.splice(import_str) + self.kernel_autotune_calls.writeline( + V.graph.device_ops.import_get_raw_stream_as("get_raw_stream") + ) + if not V.graph.cpp_wrapper: + self.imports.splice(import_str, strip=True) + self.imports.writeline( + V.graph.device_ops.import_get_raw_stream_as("get_raw_stream") + ) + + def write_get_raw_stream_header(self) -> None: + import_get_raw_stream_str = V.graph.device_ops.import_get_raw_stream_as( + "get_raw_stream" + ) + if config.triton.autotune_at_compile_time: + if not self.kernel_autotune_calls.contains(import_get_raw_stream_str): + self.kernel_autotune_calls.writeline(import_get_raw_stream_str) + if not V.graph.cpp_wrapper: + if not self.imports.contains(import_get_raw_stream_str): + self.imports.writeline(import_get_raw_stream_str) + + @cache_on_self + def write_get_raw_stream_header_once(self) -> None: + self.write_get_raw_stream_header() + + def add_meta_once(self, meta: TritonMetaParams) -> str: + # pyrefly: ignore [bad-assignment] + meta = repr(meta) + if meta not in self._metas: + var = f"meta{len(self._metas)}" + # pyrefly: ignore [unsupported-operation] + self._metas[meta] = var + self.header.writeline(f"{var} = {meta}") + if config.triton.autotune_at_compile_time: + self.kernel_autotune_calls.writeline(f"{var} = {meta}") + self._meta_vars.add(var) + # pyrefly: ignore [index-error] + return self._metas[meta] + + @cache_on_self + def get_output_refs(self) -> list[str]: + return [ + x.codegen_reference(self.wrapper_call) for x in self.get_graph_outputs() + ] + + def mark_output_type(self) -> None: + return + + def get_graph_inputs( + self, + ) -> dict[str, Union[ir.TensorBox, ir.TorchBindObject, sympy.Expr]]: + return V.graph.graph_inputs + + def get_graph_outputs(self) -> list[IRNode]: + return V.graph.graph_outputs + + def codegen_input_size_asserts(self) -> None: + for name, buf in self.get_graph_inputs().items(): + if isinstance(buf, (sympy.Expr, ir.TorchBindObject)): + continue + + # a graph partition may take an IRNode output from a previous partition + if name not in V.graph.graph_input_names or isinstance( + buf, ir.GeneratorState + ): + continue + + # comparing strides for 0 size tensor is tricky. Ignore them for now. + if sympy_product(buf.get_size()) == 0: + continue + size = self.codegen_python_shape_tuple(buf.get_size()) + stride = self.codegen_python_shape_tuple(buf.get_stride()) + self.prefix.writeline(f"assert_size_stride({name}, {size}, {stride})") + + def codegen_input_nan_asserts(self) -> None: + self.prefix.writeline("# make sure graph inputs are not nan/inf") + for name, buf in self.get_graph_inputs().items(): + if isinstance(buf, (sympy.Expr, ir.TorchBindObject)): + continue + + line = f"assert not {name}.isnan().any().item()" + self.prefix.writeline(line) + line = f"assert not {name}.isinf().any().item()" + self.prefix.writeline(line) + + def write_async_compile_wait(self) -> None: + self.prefix.splice( + """ + + async_compile.wait(globals()) + del async_compile + """ + ) + + def write_args(self, input_names: list[str]): + lhs = ", ".join(input_names) + if len(input_names) == 1: + lhs += "," + self.prefix.writeline(f"{lhs} = args") + self.prefix.writeline("args.clear()") + + def write_launcher_fn_call_get_indent(self) -> int: + if config.graph_partition: + self.prefix.splice( + """ + class Runner: + def __init__(self, partitions): + self.partitions = partitions + + def recursively_apply_fns(self, fns): + new_callables = [] + for fn, c in zip(fns, self.partitions): + new_callables.append(fn(c)) + self.partitions = new_callables + + def call(self, args): + """ + ) + prefix_indent = 2 + else: + self.prefix.splice( + f""" + def {self.launcher_fn_name}(args): + """ + ) + prefix_indent = 1 + + return prefix_indent + + def get_graph_input_names(self) -> list[str]: + return V.graph.graph_input_names + + def write_prefix(self) -> None: + assert self.launcher_fn_name is not None + self.write_async_compile_wait() + prefix_indent = self.write_launcher_fn_call_get_indent() + + with self.prefix.indent(prefix_indent): + if config.triton.debug_sync_graph: + self.prefix.writeline(V.graph.device_ops.synchronize()) + phase = V.graph.get_training_phase() + if config.annotate_training: + self.prefix.writeline( + f"training_annotation = nvtx._device_range_start('{phase}')" + ) + + if graph_input_names := self.get_graph_input_names(): + self.write_args(graph_input_names) + + self.codegen_inputs() + + # avoid duplicating asserts for both partition functions and + # the call function when using cudagraph partition + if not ( + is_using_cudagraph_partition() + and (not is_codegen_graph_partition_subgraph(self)) + ): + self.codegen_input_size_and_nan_asserts() + + def codegen_input_size_and_nan_asserts(self) -> None: + if config.size_asserts: + self.codegen_input_size_asserts() + if config.nan_asserts: + self.codegen_input_nan_asserts() + + # this function (and below) takes the graph name as input so + # that stream caching happens per graph instance. this + # is important for nested subgraph codegening. + def write_get_raw_stream(self, device_idx: int, graph_name: str) -> str: + self.write_get_raw_stream_header() + name = f"stream{device_idx}" + if config.triton.autotune_at_compile_time: + self.kernel_autotune_calls.writeline( + f"{name} = get_raw_stream({device_idx})" + ) + if V.graph.cpp_wrapper: + # For cpp wrapper, no need to continue codegen for the main body + return name + self.writeline(f"{name} = get_raw_stream({device_idx})") + return name + + def get_codegened_graph(self): + return self.codegened_graph_stack[-1] + + def push_codegened_graph(self, graph): + self.codegened_graph_stack.append(graph) + + def pop_codegened_graph(self): + return self.codegened_graph_stack.pop() + + def push_computed_sizes(self, computed_sizes): + from copy import deepcopy + + return self.computed_sizes_stack.append(deepcopy(computed_sizes)) + + def pop_computed_sizes(self): + return self.computed_sizes_stack.pop() + + def next_kernel_suffix(self) -> str: + return f"{next(self._names_iter)}" + + def codegen_device_guard_enter(self, device_idx: int) -> None: + self.writeline( + EnterDeviceContextManagerLine(device_idx, self.last_seen_device_guard_index) + ) + if config.triton.autotune_at_compile_time: + # mimic logic of EnterDeviceContextManagerLine.codegen for the autotune code block + self.write_triton_header_once() + self.kernel_autotune_calls.writeline( + f"with {V.graph.device_ops.device_guard(device_idx)}:" + ) + self.kernel_autotune_calls.do_indent() + if is_codegen_graph_partition_subgraph(self): + # Need get_raw_stream for subgraph + self.write_get_raw_stream_header() + self.kernel_autotune_calls.writeline( + f"stream{device_idx} = get_raw_stream({device_idx})" + ) + self.last_seen_device_guard_index = device_idx + + def codegen_device_guard_exit(self) -> None: + self.writeline(ExitDeviceContextManagerLine()) + if config.triton.autotune_at_compile_time: + self.kernel_autotune_calls.do_unindent() + + def generate_return(self, output_refs: list[str]) -> None: + if output_refs: + if config.nan_asserts: + self.wrapper_call.writeline( + "return_vars = (" + ", ".join(output_refs) + ", )" + ) + self.wrapper_call.writeline("for var in return_vars:") + self.wrapper_call.do_indent() + self.wrapper_call.writeline("if isinstance(var, torch.Tensor):") + self.wrapper_call.do_indent() + self.wrapper_call.writeline("assert not var.isnan().any().item()") + self.wrapper_call.writeline("assert not var.isinf().any().item()") + self.wrapper_call.do_unindent(2) + + self.wrapper_call.writeline("return (" + ", ".join(output_refs) + ", )") + else: + self.wrapper_call.writeline("return ()") + + def generate_before_suffix(self, result: IndentedBuffer) -> None: + return + + def generate_after_suffix(self, result: IndentedBuffer) -> None: + if config.graph_partition: + all_partition_name_list = ", ".join(self.all_partition_names) + ( + "," if len(self.all_partition_names) == 1 else "" + ) + + result.splice( + f""" + runner = Runner(partitions=[{all_partition_name_list}]) + call = runner.call + recursively_apply_fns = runner.recursively_apply_fns + """ + ) + + def generate_end(self, result: IndentedBuffer) -> None: + return + + def generate_fallback_kernel(self, node: ir.FallbackKernel) -> None: + self.writeline(ExternKernelAllocLine(self, node)) + + def generate_extern_kernel_alloc(self, node: ir.ExternKernelAlloc): + node.codegen_comment(self) + self.writeline(ExternKernelAllocLine(self, node)) + if isinstance(node.layout, ir.Layout): + node.codegen_size_asserts(self) + + def _generate_extern_kernel_alloc_helper(self, extern_kernel, args): + # If it's a NoneLayout then the extern_kernel should essentially be + # treated as if it doesn't return anything + no_return = isinstance(extern_kernel.layout, ir.NoneLayout) + output_name = extern_kernel.get_name() + origin_node = extern_kernel.get_origin_node() + kernel_name = extern_kernel.get_kernel_name() + ending = self.ending + if config.memory_planning and "view_as_complex" in kernel_name: + # view operation fallbacks cause issues since inductor + # doesn't know the memory is still needed and might reuse it. + ending = f".clone(){ending}" + + if no_return: + self.writeline(f"{self.declare}{kernel_name}({', '.join(args)}){ending}") + else: + self.writeline( + f"{self.declare}{output_name} = {kernel_name}({', '.join(args)}){ending}" + ) + if ( + self.supports_intermediate_hooks + and config.generate_intermediate_hooks + and origin_node is not None + ): + counters["inductor"]["intermediate_hooks"] += 1 + self.writeline( + f"run_intermediate_hooks({origin_node.name!r}, {output_name})" + ) + + def generate_extern_kernel_out( + self, + node: ir.ExternKernelOut, + ) -> None: + node.codegen_comment(self) + self.writeline(ExternKernelOutLine(self, node)) + + def _generate_extern_kernel_out_helper( + self, + kernel: str, + out: str, + out_view: Optional[str], + args: list[str], + device: str, + stack_traces: Optional[OrderedSet[str]] = None, + ) -> None: + # add debug printer code for triton kernel calls at (jit) inductor level + debug_printer_manager = V.graph.wrapper_code.debug_printer + debug_printer_manager.set_printer_args(args, kernel, None, None, "extern") + args.append(f"out={out_view if out_view else out}") + with debug_printer_manager: + self.writeline(f"{kernel}({', '.join(args)})") + + def _generate_tma_descriptor_call_experimental(self, desc, apply_size_hints=False): + dims = desc.dims + block_dims = desc.block_dims + if apply_size_hints: + dims = tuple(V.graph.sizevars.atomically_apply_size_hint(d) for d in dims) + block_dims = tuple( + V.graph.sizevars.atomically_apply_size_hint(d) for d in block_dims + ) + + ptr = f"{desc.tensor.codegen_reference()}.data_ptr()" + # Explicitly call the Python version of val_to_arg_str + dims = ", ".join(PythonWrapperCodegen.val_to_arg_str(self, dim) for dim in dims) + block_dims = ", ".join( + PythonWrapperCodegen.val_to_arg_str(self, dim) for dim in block_dims + ) + element_size = PythonWrapperCodegen.val_to_arg_str(self, desc.element_size) + prefix = "triton.tools.experimental_descriptor" + fn = f"{prefix}.create_{desc.rank}d_tma_descriptor" + args = f"{ptr}, {dims}, {block_dims}, {element_size}" + call = f"{fn}({args})" + return call + + def _generate_tma_descriptor_call_stable(self, desc, apply_size_hints=False): + block_shape = desc.block_shape + if apply_size_hints: + block_shape = tuple( + V.graph.sizevars.atomically_apply_size_hint(d) for d in block_shape + ) + + prefix = "triton.tools.tensor_descriptor.TensorDescriptor" + fn = f"{prefix}.from_tensor" + args = f"{desc.tensor.codegen_reference()}, {block_shape}" + call = f"{fn}({args})" + return call + + def _generate_tma_descriptor_call(self, desc, apply_size_hints=False): + if isinstance(desc, ir.TMADescriptorExperimental): + return self._generate_tma_descriptor_call_experimental( + desc, apply_size_hints + ) + else: + assert isinstance(desc, ir.TMADescriptorStable) + return self._generate_tma_descriptor_call_stable(desc, apply_size_hints) + + def generate_tma_descriptor(self, desc): + call = self._generate_tma_descriptor_call(desc) + line = f"{desc.name} = {call}{self.ending}" + self.writeline(line) + + def generate_scatter_fallback(self, node: ir.ScatterFallback): + self.writeline(ScatterFallbackLine(self, node)) + + def _generate_scatter_fallback( + self, + output, + inputs, + cpp_kernel_name, + python_kernel_name, + src_is_tensor, + reduce, + kwargs, + device, + ): + line = f"{python_kernel_name}({','.join(map(str, inputs))}" + if python_kernel_name.startswith("aten.scatter_reduce"): + line += ", ".join([""] + kwargs) + else: + if reduce: + line += f", reduce={repr(reduce)}" + line += ")" + self.writeline(line) + + def generate_index_put_fallback(self, node: ir.IndexPutFallback) -> None: + # Collect index tensors into a list. + indices: list[Optional[ir.IRNode]] = [] + valid_indices = node.inputs[2:] + iter_valid_indices = iter(valid_indices) + for i, _ in enumerate(node.indices): + if node.indices[i] is not None: + index = next(iter_valid_indices) + assert isinstance(index, ir.IRNode) + indices.append(index) + else: + indices.append(None) + + self.writeline(IndexPutFallbackLine(self, node, indices)) + + def _generate_index_put_fallback(self, kernel, x, indices, values, accumulate): + indices_str = f"[{', '.join(indices)}]" + args = [x, indices_str, values, accumulate] + self.writeline(self.wrap_kernel_call(kernel, args)) + + def generate_fallback_kernel_with_runtime_lookup( + self, + buf_name: str, + python_kernel_name: str, + get_args: Callable[[], Sequence[str]], + op_overload: Union[torch._ops.OpOverload, torch._ops.HigherOrderOperator], + raw_args: Sequence[Any], + outputs: Sequence[ir.Buffer], + ) -> None: + self.writeline(f"{buf_name} = {python_kernel_name}({', '.join(get_args())})") + + def generate(self, is_inference): + with dynamo_timed("PythonWrapperCodegen.generate"): + return self._generate(is_inference) + + def get_wrapper_call_indent(self) -> int: + if config.graph_partition: + return 2 + else: + return 1 + + @contextlib.contextmanager + def set_writeline(self, new: Callable[..., None]) -> Iterator[Callable[..., None]]: + old = self.writeline + try: + self.writeline = new # type: ignore[method-assign] + yield new + finally: + self.writeline = old # type: ignore[method-assign] + + def _write_multi_kernel_defs(self) -> None: + kernel_defs = self.multi_kernel_state.kernel_defs + if config.triton.autotune_at_compile_time: + self.kernel_autotune_defs.splice(kernel_defs) + else: + self.header.splice(kernel_defs) + + def _generate(self, is_inference): + if config.profile_bandwidth: + self.write_triton_header_once() + + with contextlib.ExitStack() as stack: + stack.enter_context(self.wrapper_call.indent()) + if config.profiler_mark_wrapper_call: + self.generate_profiler_mark_wrapper_call(stack) + if config.profile_bandwidth: + self.generate_start_graph() + + self.run_wrapper_ir_passes(is_inference) + + if config.triton.store_cubin and not config.triton.autotune_at_compile_time: + self.generate_reset_kernel_saved_flags() + + # At this point, we shouldn't generate any new memory planning lines. + # Override writeline to point at the wrapper call, in case it gets called. + with self.set_writeline(self.wrapper_call.writeline): + for line in self.lines: + if isinstance(line, WrapperLine): + # pyrefly: ignore [missing-attribute] + line.codegen(self.wrapper_call) + else: + self.wrapper_call.writeline(line) + + self._write_multi_kernel_defs() + + output_refs = self.get_output_refs() + self.mark_output_type() + if config.triton.debug_sync_graph: + self.wrapper_call.writeline(V.graph.device_ops.synchronize()) + + if config.profile_bandwidth: + self.generate_end_graph() + + if config.triton.store_cubin and not config.triton.autotune_at_compile_time: + self.generate_save_uncompiled_kernels() + + if config.triton.autotune_at_compile_time: + self.generate_and_run_autotune_block() + + # cpp_wrapper currently doesn't support nvtx + if config.annotate_training and not config.cpp_wrapper: + self.wrapper_call.writeline( + "nvtx._device_range_end(training_annotation)" + ) + self.generate_return(output_refs) + + # Assemble the final code from sections. + result = IndentedBuffer() + result.splice(self.imports) + result.writeline("") + result.splice(self.header) + # We do not want the cpp header for intermediate const graph. Headers would be + # rendered by the main module instead. + if V.graph.aot_mode and V.graph.cpp_wrapper and V.graph.is_const_graph: + result = IndentedBuffer() + + # Add subgraph definitions to the result + result.splice(self.subgraph_definitions) + self.finalize_prefix() + result.splice(self.prefix) + + wrapper_call_indent = self.get_wrapper_call_indent() + + with result.indent(wrapper_call_indent): + result.splice(self.wrapper_call) + + self.generate_before_suffix(result) + result.splice(self.suffix) + self.generate_after_suffix(result) + + self.generate_end(result) + + self.add_benchmark_harness(result) + + return ( + result.getvaluewithlinemap(), + self.kernel_declarations.getvaluewithlinemap(), + ) + + def generate_and_run_autotune_block(self): + """ + Compose self.kernel_autotune_defs and self.kernel_autotune_calls into a single block of + code and execute it to trigger Triton kernel compilation and auto-tuning + """ + self.kernel_autotune_defs.splice( + """ + async_compile.wait(globals()) + del async_compile + """ + ) + scope = {} # type: ignore[var-annotated] + if config.triton.autotune_at_compile_time and V.graph.autotuning_inputs: + scope = { + self.get_autotuning_input_name(idx): v # type: ignore[attr-defined] + for idx, v in enumerate(V.graph.autotuning_inputs) + } + tuning_code = ( + self.kernel_autotune_defs.getvalue() + + "\n" + + self.kernel_autotune_calls.getvalue() + ) + if output_code_log.level == logging.DEBUG: + # Save the autotuning code block into a file + # Create a temporary file + with tempfile.NamedTemporaryFile( + dir=cache_dir(), suffix=".py", delete=False + ) as f: + f.write(tuning_code.encode("utf-8")) + file_path = f.name + output_code_log.debug( + "Auto-tuning code written to %s", + file_path, + ) + trace_structured( + "artifact", + metadata_fn=lambda: { + "name": "inductor_autotune_at_compile_time_code", + "encoding": "string", + }, + payload_fn=lambda: tuning_code, + ) + # Execute the code to autotune kernels + try: + exec(tuning_code, scope) + except Exception as e: + raise RuntimeError(f"Failed to run autotuning code block: {e}") from e + + def memory_plan(self): + from .memory_planning import MemoryPlanner + + self.lines = MemoryPlanner(self).plan(self.lines) + + def memory_plan_reuse(self): + outputs = self.get_graph_outputs() + out_names = V.graph._get_output_names(outputs) + + while ( + self.lines + and isinstance(self.lines[-1], MemoryPlanningLine) + # TODO: this seems legit, NullLine has no node + and self.lines[-1].node.name not in out_names # type: ignore[attr-defined] + ): + # these lines will be pointless + self.lines.pop() + + # codegen allocations in two passes + planning_states = [MemoryPlanningState()] + past_planning_states = [] + for i in range(len(self.lines)): + line = self.lines[i] + if isinstance(line, MemoryPlanningLine): + self.lines[i] = line.plan(planning_states[-1]) + elif isinstance(line, EnterSubgraphLine): + planning_states.append(MemoryPlanningState()) + elif isinstance(line, ExitSubgraphLine): + past_planning_states.append(planning_states.pop()) + past_planning_states.append(planning_states.pop()) + assert len(planning_states) == 0 + + # conservatively use the sum of all allocated buffer sizes + # in potentially nested scopes as the total allocated size + # FIXME(rec): not used + _total_allocated_buffer_size = sum( + s.total_allocated_buffer_size for s in past_planning_states + ) + + def run_wrapper_ir_passes(self, is_inference: bool): + # We disable planning during training because it presently increases peak memory consumption. + if is_inference and config.memory_planning: + self.memory_plan() + else: + if config.allow_buffer_reuse: + self.estimate_peak = EfficientPeakEstimate() + self.memory_plan_reuse() + + def codegen_input_symbol_assignment( + self, + name: str, + value: ir.TensorBox, + bound_vars: OrderedSet[sympy.Symbol], + ): + code = self.prefix + + @functools.cache + def sizeof(name): + code.writeline(f"{name}_size = {name}.size()") + return f"{name}_size" + + @functools.cache + def strideof(name): + code.writeline(f"{name}_stride = {name}.stride()") + return f"{name}_stride" + + if isinstance(value, sympy.Expr): + if not isinstance(value, sympy.Symbol) or value in bound_vars: + return + code.writeline(f"{value} = {name}") + bound_vars.add(value) + elif isinstance(value, ir.TensorBox): + for dim, size in enumerate(value.get_size()): + if isinstance(size, sympy.Symbol) and size not in bound_vars: + code.writeline(f"{size} = {sizeof(name)}[{dim}]") + bound_vars.add(size) + for dim, stride in enumerate(value.get_stride()): + if isinstance(stride, sympy.Symbol) and stride not in bound_vars: + code.writeline(f"{stride} = {strideof(name)}[{dim}]") + bound_vars.add(stride) + elif isinstance(value, ir.TorchBindObject): + return + elif isinstance(value, ir.GeneratorState): + return + else: + if torch._inductor.config.graph_partition: + pass + else: + raise AssertionError(f"Unknown value type: {type(value)}") + + def codegen_inputs(self): + """Assign all symbolic shapes to locals""" + bound_vars = OrderedSet[sympy.Symbol]() + # There is a subtle case in the cpp wrapper codegen which requires generating + # symbol inputs first followed by non-symbol ones. + # + # When a dynamic size constraint specified at the Export time is an expression, + # we need to solve that expression to proper define a symbol in cpp. Thus we + # are enforcing this iterating order here to make sure all plain size symbols + # are defined first. + graph_inputs = self.get_graph_inputs() + inputs = [ + (k, v) for k, v in graph_inputs.items() if isinstance(v, sympy.Symbol) + ] + [(k, v) for k, v in graph_inputs.items() if not isinstance(v, sympy.Symbol)] + for name, value in inputs: + self.codegen_input_symbol_assignment(name, value, bound_vars) + + def _verify_input_symbol_assignment( + value: ir.TensorBox, + bound_vars: OrderedSet[sympy.Symbol], + ): + for expr in chain.from_iterable([value.get_size(), value.get_stride()]): + if not isinstance(expr, Expr) or isinstance(expr, sympy.Symbol): + continue + + undefined_symbols = [ + sym for sym in expr.free_symbols if sym not in bound_vars + ] + if len(undefined_symbols) > 0: + raise AssertionError( + f"For {expr}, expected {undefined_symbols} to have been codegen-ed." + ) + + # For inputs with size/strides which contain sympy expressions, we can + # encounter symbols that weren't defined yet. Now, let's check each + # symbol is defined. + for _, value in inputs: + if not isinstance(value, ir.TensorBox): + continue + _verify_input_symbol_assignment(value, bound_vars) + + def ensure_size_computed(self, sym: sympy.Symbol): + if isinstance(sym, sympy.Symbol) and symbol_is_type(sym, SymT.PRECOMPUTED_SIZE): + if sym in self.computed_sizes: + return + self.computed_sizes.add(sym) + expr = V.graph.sizevars.inv_precomputed_replacements[sym] + arg = SymbolicCallArg(sym, expr) + self.writeline(SymbolicCallArgLine(self, arg, V.graph)) + + def finalize_prefix(self): + pass + + def codegen_cpp_sizevar(self, x: Expr, *, simplify: bool = True) -> str: + raise RuntimeError("codegen_cpp_sizevar is only implemented for cpp_wrapper!") + + def codegen_python_sizevar(self, x: Expr, *, simplify: bool = True) -> str: + return pexpr(x, simplify=simplify) + + def codegen_sizevar(self, x: Expr) -> str: + return self.codegen_python_sizevar(x) + + def codegen_tuple_access(self, basename: str, name: str, index: str) -> str: + return f"{basename}[{index}]" + + def codegen_python_shape_tuple(self, shape: Sequence[Expr]) -> str: + parts = [*map(self.codegen_python_sizevar, shape)] + if len(parts) == 0: + return "()" + if len(parts) == 1: + return f"({parts[0]}, )" + return f"({', '.join(parts)})" + + def codegen_shape_tuple(self, shape: Sequence[Expr]) -> str: + return self.codegen_python_shape_tuple(shape) + + def codegen_alloc_from_pool( + self, name, offset, dtype, shape, stride + ) -> tuple[str, list[str]]: + return "alloc_from_pool({})".format( + ", ".join( + [ + name, + pexpr(offset), # bytes not numel + str(dtype), + self.codegen_python_shape_tuple(shape), + self.codegen_python_shape_tuple(stride), + ] + ) + ), [] + + def codegen_reinterpret_view( + self, + data, + size, + stride, + offset, + writeline: Callable[..., None], + dtype=None, + ) -> str: + # Get the innermost buffer's layout info to help reinterpret view. + # Consider a chain of (ReinterpretView <- TensorBox| StorageBox)... <- buffer + # If we only use x.data to determine the reinterpret, we may get wrong layout. + # For example: + # x = ReinterpretView( + # Storage( + # ReinterpretView( + # storage( + # Buffer(name='buf0', layout=(size=(2, 5, 10), ...) + # ), + # layout=(10, 10), + # ), + # ), + # layout=(10, 10), + # ) + # In this case, x.data.layout == x.layout is (10, 10), the reinterpret view will return buf0, + # but buf0 need to be viewed from (2, 5, 10) to (10, 10). + # So we need to dig into the chain to find the innermost buffer's layout. + d_size, d_stride, d_offset, d_dtype, collapsible = ( + codegen_reinterpret_view_helper(data) + ) + + def apply_reinterpret( + name, tgt_size, tgt_stride, tgt_offset, cast_dtype, base_dtype + ): + s = self.codegen_python_shape_tuple(tgt_size) + st = self.codegen_python_shape_tuple(tgt_stride) + off = self.codegen_sizevar(tgt_offset) + expr = f"reinterpret_tensor({name}, {s}, {st}, {off})" + if cast_dtype is not None and cast_dtype != base_dtype: + return f"aten.view.dtype({expr}, {cast_dtype})" + return expr + + name = data.get_name() + collapsed = collapsible and offset == d_offset + if collapsed: + same_layout = size == d_size and stride == d_stride + base_dtype = d_dtype + else: + same_layout = ( + size == data.layout.size + and stride == data.layout.stride + and offset == data.layout.offset + ) + base_dtype = data.dtype + + if same_layout: + if dtype is not None and dtype != base_dtype: + return f"aten.view.dtype({name}, {dtype})" + return f"{name}" + + return apply_reinterpret(name, size, stride, offset, dtype, base_dtype) + + def codegen_device_copy(self, src, dst, non_blocking: Union[bool, str]): + self.writeline(f"{dst}.copy_({src}, {non_blocking})") + + def codegen_multi_output(self, node: ir.MultiOutput): + result_name = node.get_name() + arg_name = node.input_name(0) + self.writeline(MultiOutputLine(self, result_name, arg_name, node.indices)) + + def codegen_dynamic_select_index(self, node, clamp): + index_str = f"{node.index} + {node.size} if {node.index} < 0 else {node.index}" + if clamp: + index_str = f"max(0, min({node.size}, {index_str}))" + self.writeline( + f"{node.unbacked_offset_symbol} = {node.base_offset} + {node.base_dim_stride} * ({index_str})" + ) + # record in unbacked_symbol_decls so we won't generate a declaration of the symbol again + self.unbacked_symbol_decls.add(str(node.unbacked_offset_symbol)) + + def codegen_dynamic_slice_size(self, node): + def clamp_index(x): + pos = self.codegen_sizevar(sympy.Max(0, sympy.Min(x, node.size))) + neg = self.codegen_sizevar( + sympy.Max(0, sympy.Min(x + node.size, node.size)) + ) + x_cond = self.codegen_sizevar(x) + return f"{pos} if {x_cond} >= 0 else {neg}" + + def codegen_with_step(start_var, end_var, step): + if step == 1: + return f"{end_var} - {start_var}" + step_ = self.codegen_sizevar(step) + return f"({end_var} - {start_var} + {step_} - 1) // {step_}" + + # codegen start, end + sym = node.unbacked_size_symbol + start = clamp_index(node.start) + end = clamp_index(node.end) + self.writeline(f"{sym}_start = {start}") + self.writeline(f"{sym}_end = {end}") + with_step = codegen_with_step(f"{sym}_start", f"{sym}_end", node.step) + self.writeline(f"{sym} = max(0, {with_step})") + self.unbacked_symbol_decls.add(str(node.unbacked_size_symbol)) + + def codegen_dynamic_scalar(self, node): + self.writeline(DynamicScalarLine(self, node)) + + def _codegen_dynamic_scalar(self, node): + (data,) = (t.codegen_reference() for t in node.inputs) + if len(node.keypath) == 0: + self.writeline(f"{node.sym} = {data}.item()") + elif len(node.keypath) == 1 and isinstance(node.keypath[0], ConvertIntKey): + self.writeline(f"{node.sym} = 1 if {data}.item() else 0") + elif len(node.keypath) == 1 and isinstance(node.keypath[0], DivideByKey): + self.writeline(f"{node.sym}_undivided = {data}.item()") + self.writeline( + f"assert {node.sym}_undivided % {node.keypath[0].divisor} == 0, " + f"f'{{{node.sym}_undivided}} not divisible by {node.keypath[0].divisor}'" + ) + self.writeline( + f"{node.sym} = {node.sym}_undivided // {node.keypath[0].divisor}" + ) + else: + raise AssertionError(f"unrecognized keypath {node.keypath}") + # No one should ever use this buffer, but for uniformity + # define the variable and assign it None + self.writeline(f"{node.get_name()} = None") + + def benchmark_compiled_module(self, output): + def add_fake_input(name, shape, stride, device, dtype): + output.writeline( + f"{name} = rand_strided(" + f"{self.codegen_python_shape_tuple(shape)}, " + f"{self.codegen_python_shape_tuple(stride)}, " + f"device='{device}', dtype={dtype})" + ) + + def add_expr_input(name, val): + output.writeline(f"{name} = {val}") + + def add_torchbind_input(name, value): + if value is None: + output.writeline(f"{name} = None") + return + + import pickle + + assert isinstance(value, torch.ScriptObject) + + output.writeline(f"{name} = pickle.loads({pickle.dumps(value)!r})") + + output.writelines( + ["", "", "def benchmark_compiled_module(times=10, repeat=10):"] + ) + with output.indent(): + output.splice( + """ + from torch._dynamo.testing import rand_strided + from torch._inductor.utils import print_performance + """, + strip=True, + ) + + for name, value in V.graph.constants.items(): + # all the constants are global variables, that's why we need + # these 'global var_name' lines + output.writeline(f"global {name}") + add_fake_input( + name, value.size(), value.stride(), value.device, value.dtype + ) + + if len(V.graph.torchbind_constants) > 0: + output.writeline("import pickle") + for name, torchbind_obj in V.graph.torchbind_constants.items(): + # all the constants are global variables, that's why we need + # these 'global var_name' lines + output.writeline(f"global {name}") + add_torchbind_input(name, torchbind_obj) + + for name, value in V.graph.graph_inputs.items(): + if isinstance(value, sympy.Symbol) and isinstance( + V.graph.sizevars.var_to_val.get(value, None), SingletonInt + ): + # Inductor should only work with dense -> dense graph, and + # SingletonInts belong to metadata that should only live on + # the subclass. + continue + if isinstance(value, ir.TorchBindObject): + if len(V.graph.torchbind_constants) == 0: + # otherwise we have already imported the pickle package + output.writeline("import pickle") + output.writeline(f"global {name}") + add_torchbind_input(name, value.get_real_obj()) + elif isinstance(value, sympy.Expr): # Don't need to add symbolic + # TODO: this fallback and those below actually will generate possibly + # invalid benchmark code, because it's not guaranteed 42 + # is actually a valid value for the kernel in question. + # See https://github.com/pytorch/pytorch/issues/124686 + add_expr_input(name, V.graph.sizevars.size_hint(value, fallback=42)) + elif isinstance(value, ir.GeneratorState): + add_expr_input( + name, + f"torch.cuda.default_generators[{value.device.index}].graphsafe_get_state()", + ) + else: + shape = [ + V.graph.sizevars.size_hint(x, fallback=42) + for x in value.get_size() + ] + stride = [ + V.graph.sizevars.size_hint(x, fallback=42) + for x in value.get_stride() + ] + add_fake_input( + name, + shape, + stride, + value.get_device(), + value.get_dtype(), + ) + + call_str = f"call([{', '.join(V.graph.graph_inputs.keys())}])" + output.writeline(f"fn = lambda: {call_str}") + output.writeline("return print_performance(fn, times=times, repeat=repeat)") + + def add_benchmark_harness(self, output): + """ + Append a benchmark harness to generated code for debugging + """ + if not config.benchmark_harness: + return + + self.benchmark_compiled_module(output) + + output.writelines(["", "", 'if __name__ == "__main__":']) + with output.indent(): + output.writelines( + [ + "from torch._inductor.wrapper_benchmark import compiled_module_main", + f"compiled_module_main('{get_benchmark_name()}', benchmark_compiled_module)", + ] + ) + + def define_kernel( + self, + kernel_name: str, + kernel_body: str, + metadata: Optional[str] = None, + gpu: bool = True, + cpp_definition: Optional[str] = None, + ): + self.writeline( + KernelDefinitionLine( + self, + kernel_name, + kernel_body, + metadata=metadata, + gpu=gpu, + cpp_definition=cpp_definition, + ) + ) + + @staticmethod + def _format_kernel_definition( + kernel_name: str, kernel_body: str, metadata: Optional[str] = None + ): + if config.triton.autotune_at_compile_time and metadata: + # Generating autotune block + # Need to replace C++ comment starter with Python comment starter + metadata = re.sub(r"^// ", "# ", metadata, flags=re.MULTILINE) + metadata_comment = f"{metadata}\n" if metadata else "" + body = f"\n\n{metadata_comment}{kernel_name} = {kernel_body}" + return body + + def _define_kernel_helper( + self, + kernel_name: str, + kernel_body: str, + metadata: Optional[str] = None, + gpu: bool = True, + cpp_definition: Optional[str] = None, + ): + if config.triton.autotune_at_compile_time and gpu: + body = self._format_kernel_definition( + kernel_name, kernel_body, metadata=metadata + ) + self.kernel_autotune_defs.splice(body) + if V.graph.cpp_wrapper: + # For cpp wrapper, no need to continue codegen for the main body + return + + body = self._format_kernel_definition( + kernel_name, kernel_body, metadata=metadata + ) + self.header.splice(body) + + def define_subgraph_launcher_fn(self, name: str, subgraph_code): + self.subgraph_definitions.splice(subgraph_code.value) + + def define_user_defined_triton_kernel( + self, + kernel, + configs, + kwargs, + restore_value_args, + reset_to_zero_args, + grids: list[list[Union[int, sympy.Expr]]], + ): + from ..runtime.triton_heuristics import ( + config_to_dict, + FixedGrid, + PrecomputedGrid, + ) + from .common import ( + ConstexprArg, + KernelArgType, + SizeArg, + TensorArg, + TMADescriptorArg, + ) + from .triton import gen_common_triton_imports, TritonKernel + + original_name = kernel.__name__ + signature: list[KernelArgType] = [] + constants: dict[str, Any] = {} + arg_indices: list[int] = [] + equal_to_1_args: list[str] = [] + + def add_to_signature(idx, arg): + signature.append(arg) + arg_indices.append(idx) + + def add_arg(idx, arg, is_constexpr=False, equals_1=False, equals_none=False): + if is_constexpr: + if triton_version_uses_attrs_dict(): + # tl.constexpr args appear in the signature in new versions of triton, + # but not in old versions of triton. + add_to_signature(idx, arg) + + if arg.name in kwargs: + # the arg may not appear in kwargs if it is an autotuned arg. + # in this case, it will be added in triton_heuristics after autotuning. + constants[arg.name] = kwargs[arg.name] + + else: + # the only case where arg name isn't in kwargs, should be + # when the arg is a constexpr. + assert arg.name in kwargs + + if equals_1: + if triton_version_uses_attrs_dict(): + # new versions of triton: add the equal-to-1 arg in the signature (labeled as "constexpr"), + # and add the arg as a constant. + # new versions of triton: add the equal-to-1 arg in the signature (labeled as, e.g., "i32"), + # and add the arg as a constant. + add_to_signature(idx, ConstexprArg(name=arg.name)) + else: + add_to_signature(idx, arg) + constants[arg.name] = 1 + elif equals_none: + if triton_version_uses_attrs_dict(): + # new versions of triton: add the none arg in the signature (as a constexpr arg) and as a constant + # old versions of triton: include the none arg as a constant (but not in the signature) + add_to_signature(idx, ConstexprArg(name=arg.name)) + constants[arg.name] = None + else: + add_to_signature(idx, arg) + + arg_names = [p.name for p in kernel.params] + constexprs = [p.num for p in kernel.params if p.is_constexpr] + for idx, key in enumerate(arg_names): + if idx in constexprs: + add_arg(idx, ConstexprArg(name=key), is_constexpr=True) + continue + + if key not in kwargs: + continue + + arg = kwargs[key] + + if kwargs[key] is None: + add_arg(idx, ConstexprArg(name=key), equals_none=True) + else: + if isinstance(arg, ir.TMADescriptor): + api_type, block_shape, dtype = ( + ("stable", arg.block_shape, arg.tensor.get_dtype()) + if isinstance(arg, ir.TMADescriptorStable) + else ("experimental", None, None) + ) + add_arg( + idx, + TMADescriptorArg( + name=key, + api_type=api_type, + block_shape=block_shape, + dtype=dtype, + ), + ) + elif isinstance(arg, ir.Buffer): + add_arg( + idx, + TensorArg( + name=key, + buffer=arg.get_name(), + dtype=arg.get_dtype(), + ), + ) + elif isinstance(arg, ir.ReinterpretView): + # for ReinterpretView we use the underlying + # buffer name and note the (possibly non-zero) + # offset relative to the underlying buffer + add_arg( + idx, + TensorArg( + name=key, + buffer=arg.data.get_name(), + dtype=arg.get_dtype(), + offset=arg.layout.offset, + ), + ) + else: + equals_1 = isinstance( + arg, (int, sympy.Integer) + ) and V.graph.sizevars.statically_known_equals( + arg, + 1, # type: ignore[arg-type] + ) + add_arg(idx, SizeArg(key, arg), equals_1=equals_1) + + triton_signature = signature_to_meta( + signature, + size_dtype=None, # try to infer based on symints + indices=arg_indices, + argdefs=[ArgName(x) for x in kernel.arg_names], + ) + triton_meta: dict[str, Any] = { + "signature": triton_signature, + "device": DeviceProperties.create(V.graph.get_current_device_or_throw()), + # Triton compiler includes equal_to_1 args into constants even + # when they are not constexpr. otherwise there may be a segfault + # during launching the Inductor-compiled Triton kernel. + # TODO(aakhundov): add None args to constants, too. currently, this + # causes CUDA errors in test_aot_inductor.test_triton_kernel_with_none_input. + # https://github.com/pytorch/pytorch/issues/120478#issuecomment-1962822307 + # https://github.com/triton-lang/triton/blob/231efe9ed2d200be0f69a07c298e4342b08efe3d/python/triton/runtime/jit.py#L384 + "constants": { + **constants, + **dict.fromkeys(equal_to_1_args, 1), + }, + "configs": [ + config_of( + signature, + indices=arg_indices, + ) + ], + } + + if restore_value_args: + triton_meta["restore_value"] = tuple(restore_value_args) + + if reset_to_zero_args: + triton_meta["reset_to_zero"] = tuple(reset_to_zero_args) + + if len(grids) == 1: + # compute the grid in the wrapper and pass it in as an arg + inductor_meta: dict[str, Any] = FixedGrid.setup_grid_as_args() + extra_launcher_call_args = [*map(sympy.sympify, grids[0])] + else: + + def rename_sizes_for_launcher(expr: Union[int, sympy.Expr]) -> sympy.Expr: + if isinstance(expr, sympy.Expr): + symbols = [*expr.free_symbols] + if not symbols: + return expr + symbols.sort(key=str) + for sym in symbols: + if sym in extra_launcher_args: + continue + extra_launcher_args[sym] = sympy.Symbol( + f"_launcher_s{len(extra_launcher_args)}" + ) + return sympy_subs(expr, extra_launcher_args) + assert isinstance(expr, int) + return sympy.Integer(expr) + + extra_launcher_args: dict[sympy.Symbol, sympy.Symbol] = {} + grids = [[*map(rename_sizes_for_launcher, grid)] for grid in grids] + + assert grids and len(grids) == len(configs) + precomputed_grids = [] + for grid, cfg in sorted( + zip(grids, configs), key=lambda x: len(x[1].kwargs), reverse=True + ): + precomputed_grids.append( + { + "config": config_to_dict(cfg), + "python": [*map(pexpr, grid)], + "cpp": [*map(cexpr, grid)], + "python_slow": [*map(pexpr, grid)], + } + ) + inductor_meta = { + "grid_type": PrecomputedGrid.__name__, + "precomputed_grids": precomputed_grids, + "extra_launcher_args": [*map(str, extra_launcher_args.values())], + } + extra_launcher_call_args = [*extra_launcher_args.keys()] + + # Distinguish between different functions using function id + cache_key: Any = [id(kernel.fn)] + if len(configs) > 0: + for arg in kwargs.values(): + # We need to key on non tensor arg only in autotune mode + if not isinstance(arg, (ir.Buffer, ir.ReinterpretView)): + cache_key.append(arg) + cache_key.append(str(triton_meta)) + cache_key.extend(str(inductor_meta)) + cache_key = tuple(cache_key) + if cache_key in self.user_defined_kernel_cache: + return ( + *self.user_defined_kernel_cache[cache_key], + extra_launcher_call_args, + ) + + name = f"{original_name}_{len(self.user_defined_kernel_cache)}" + + compile_wrapper = IndentedBuffer() + if config.triton.unique_user_kernel_names: + compile_wrapper.writeline(f"async_compile.triton({name!r}, '''") + else: + compile_wrapper.writeline(f"async_compile.triton({original_name!r}, '''") + + inductor_meta["kernel_name"] = name + inductor_meta.update(TritonKernel.inductor_meta_common()) + + compile_wrapper.splice(gen_common_triton_imports()) + compile_wrapper.splice( + f""" + @triton_heuristics.user_autotune( + configs={[*map(config_to_dict, configs)]!r}, + inductor_meta={inductor_meta!r}, + triton_meta={triton_meta!r}, + filename=__file__, + custom_kernel=True, + ) + @triton.jit + """ + ) + kernel_src = user_defined_triton_kernel_transitive_closure_source_code(kernel) + if config.triton.unique_user_kernel_names: + # We replace the original_name with the unique name. + kernel_src = kernel_src.replace(f"def {original_name}(", f"def {name}(") + kernel_src = kernel_src.replace("'''", "\\'\\'\\'") + compile_wrapper.splice(kernel_src) + + current_device = V.graph.get_current_device_or_throw() + compile_wrapper.writeline(f"''', device_str='{current_device.type}')") + _, lineno = inspect.getsourcelines(kernel.fn) + srcfile = inspect.getsourcefile(kernel.fn) + metadata = f"# Original path: {srcfile}:{lineno}" + self.define_kernel( + name, + compile_wrapper.getvalue(), + metadata, + ) + # Add to the cache for the next use + self.user_defined_kernel_cache[cache_key] = (name, triton_meta) + return name, triton_meta, extra_launcher_call_args + + def generate_numel_expr(self, kernel_name: str, tree, suffix: Optional[str] = None): + sym_name = f"{kernel_name}_{tree.prefix}numel" + if suffix is not None: + sym_name += f"_{suffix}" + sym = sympy.Symbol(sym_name, is_integer=True, is_positive=True) + + # We can get symbolic expressions here, like s0*64 + # It is fine to have them here, but we need to handle them correctly as their own type + # This is tricky to do, so we wrap in a custom type, distinct from scalars, but also from sympy* + # scalars as well. + # This is handled in `generate_args_decl` which has a correct comment of: TODO: only works for + # constant now, need type info. I agree, this needs type info, and while this is not true type info + # it suffices as a type hint for the purposes of producing the correct code for this type. + arg = SymbolicCallArg(sym, tree.numel) + + is_benchmark_kernel = kernel_name == "" + if not is_benchmark_kernel: + self.writeline(SymbolicCallArgLine(self, arg, V.graph)) + + return arg + + def _generate_symbolic_call_arg_helper( + self, arg: SymbolicCallArg, graph: GraphLowering + ) -> None: + self.writeline(f"{arg.inner} = {pexpr(arg.inner_expr)}") + + def generate_workspace_allocation(self, ws: WorkspaceArg): + name = ws.get_name() + line = AllocateLine(self, ws) + if ws.zero_mode == WorkspaceZeroMode.UNINITIALIZED: + self.writeline(line) + elif ws.zero_mode == WorkspaceZeroMode.ZERO_ON_CALL: + self.writeline(line) + self.writeline(self.make_zero_buffer(name)) + elif ws.zero_mode == WorkspaceZeroMode.ZERO_PER_GRAPH: + prior = self.allocated_workspaces.get(name) + if prior: + assert isinstance(prior, AllocateLine) and isinstance( + prior.node, WorkspaceArg + ) + # expand existing allocation + prior.node = WorkspaceArg.maximum(prior.node, ws) + else: + self.writeline(line) + self.writeline(self.make_zero_buffer(name)) + self.allocated_workspaces[name] = line + else: + raise AssertionError(ws.zero_mode) + + if config.triton.autotune_at_compile_time: + self.kernel_autotune_calls.writeline( + PythonWrapperCodegen.make_allocation( + self, + name, + ws.device, + ws.dtype, + shape=(V.graph.sizevars.size_hint(ws.count),), + stride=(1,), + ) + ) + if ws.zero_mode != WorkspaceZeroMode.UNINITIALIZED: + self.kernel_autotune_calls.writeline( + PythonWrapperCodegen.make_zero_buffer(self, name) + ) + + def generate_workspace_deallocation(self, ws: WorkspaceArg): + if ws.zero_mode != WorkspaceZeroMode.ZERO_PER_GRAPH: + self.writeline(FreeIfNotReusedLine(self, ws)) + + def make_zero_buffer(self, name): + return f"{name}.zero_(){self.ending}" + + def wrap_kernel_call(self, name, call_args): + return f"{name}({', '.join(call_args)}){self.ending}" + + def generate_profiler_mark_wrapper_call(self, stack): + self.wrapper_call.writeline("from torch.profiler import record_function") + self.wrapper_call.writeline( + f"with record_function('graph_{V.graph.graph_id}_inductor_wrapper_call'):" + ) + stack.enter_context(self.wrapper_call.indent()) + + def generate_start_graph(self): + self.wrapper_call.writeline("start_graph()") + + def generate_end_graph(self): + self.wrapper_call.writeline(f"end_graph({config.profile_bandwidth_output!r})") + + def generate_reset_kernel_saved_flags(self): + self.wrapper_call.splice( + f""" + for kernel in globals().values(): + if isinstance(kernel, {triton_heuristics.__name__}.CachingAutotuner): + kernel.cuda_kernel_saved = False + """ + ) + + def generate_save_uncompiled_kernels(self): + """ + Precompile and save the CUBINs of the Triton kernels that haven't + been precompiled and saved as a side effect of running the generated + JIT model (Python wrapper). This can happen when the model contains + control flow: only one pass through the control flow operators covers + the kernels that are saved, the remaining kernels are not launched, + hence not saved. The main purpose of this codegen is to compile and + save the Triton kernels outside the active control flow path for + subsequent AOTInductor code generation and compilation. + """ + self.wrapper_call.splice( + f""" + for kernel in globals().values(): + if isinstance(kernel, {triton_heuristics.__name__}.CachingAutotuner): + if not kernel.cuda_kernel_saved: + if len(kernel.launchers) == 0: + kernel.precompile() + kernel.save_gpu_kernel( + stream="stream", # use dummy stream + launcher=kernel.launchers[0], + ) + """ + ) + + def prepare_triton_kernel_call(self, call_args): + def wrap_arg(arg): + if isinstance(arg, str): + # dynamo wraps unspec variable as 0d CPU tensor, need convert to scalar + return arg + ".item()" if should_unwrap_unspec_arg(arg) else arg + elif isinstance(arg, (int, float, bool, SymbolicCallArg)): + return str(arg) + else: + return pexpr(V.graph.sizevars.simplify(arg)) + + return [wrap_arg(arg) for arg in call_args] + + def generate_example_arg_value(self, arg, arg_type, raw_arg=None): + if isinstance(arg_type, torch_dtype): + if isinstance(raw_arg, ir.TMADescriptor): + # first we generate the underlying buffer + buf_name = raw_arg.get_tensor().get_name() + buf = self.args_to_buffers[arg] + elif self.args_to_buffers.get(arg): + buf_name = arg + buf = self.args_to_buffers[arg] + else: + assert raw_arg is not None, ( + "V.graph.get_buffer(arg) and raw_arg can't be None at the same time" + ) + buf_name = f"tmp_arg_{self.kernel_autotune_tmp_arg_idx}" + buf = raw_arg + self.kernel_autotune_tmp_arg_idx += 1 + + assert buf is not None, f"Failed to find a buffer for arg {arg}" + size = tuple( + V.graph.sizevars.atomically_apply_size_hint( + e, + fallback=config.unbacked_symint_fallback, + ) + for e in buf.get_size() + ) + allocation_size = tuple( + V.graph.sizevars.atomically_apply_size_hint( + e, + fallback=config.unbacked_symint_fallback, + ) + for e in V.graph.get_allocation_size(buf) + ) + stride = tuple( + V.graph.sizevars.atomically_apply_size_hint( + e, + fallback=config.unbacked_symint_fallback, + ) + for e in buf.get_stride() + ) + device = buf.get_device() + dtype = buf.get_dtype() + offset = V.graph.sizevars.size_hint( + buf.get_layout().offset, + fallback=config.unbacked_symint_fallback, + ) + value = f"generate_example_value({size}, {stride}, '{device}', {dtype}, {offset}, {allocation_size})" + self.kernel_autotune_calls.writeline(f"{buf_name} = {value}") + + if isinstance(raw_arg, ir.TMADescriptor): + # generate another line initializing a host-side TMA + # descriptor from the underlying buffer created above + value = self._generate_tma_descriptor_call( + desc=raw_arg, + apply_size_hints=True, + ) + buf_name = arg + self.kernel_autotune_calls.writeline(f"{buf_name} = {value}") + + return buf_name + elif issubclass(arg_type, sympy.Basic) or isinstance(arg, SymbolicCallArg): + # arg is a symbol or symbolic expression + if isinstance(arg, str): + if arg in self._meta_vars: + return arg + if raw_arg is None: + return "None" + arg = raw_arg + if isinstance(arg, SymbolicCallArg): + arg = arg.inner_expr + if arg in V.graph.sizevars.inv_precomputed_replacements: + arg = V.graph.sizevars.inv_precomputed_replacements[arg] + + return str( + V.graph.sizevars.atomically_apply_size_hint( + arg, fallback=config.unbacked_symint_fallback + ) + ) + + elif isinstance(arg, (str, int, float, bool)): + return str(arg) + elif isinstance(arg, list): + return f"[{', '.join(self.generate_example_arg_value(a, type(a)) for a in arg)}]" + else: + raise NotImplementedError(f"Unsupported type {type(arg)}") + + def _grid_dim_str(self, grid_per_dim): + if isinstance(grid_per_dim, list): + return ( + "[" + ", ".join(self._grid_dim_str(item) for item in grid_per_dim) + "]" + ) + else: + return pexpr(grid_per_dim) + + def generate_kernel_call( + self, + kernel_name: str, + call_args, + *, + device=None, + triton=True, + arg_types=None, + raw_keys=None, + raw_args=None, + triton_meta=None, + original_fxnode_name=None, + ): + """ + Generates kernel call code. + + triton: Defines whether the backend uses Triton for codegen. Otherwise it uses the CUDA language when gpu=True, + and C++ when gpu=False. + """ + + # Store buffers corresponding to each call arg. + # This is used to generate example args for autotuning later on. + self.args_to_buffers.update( + { + arg: V.graph.try_get_buffer(arg) + for arg in call_args + if isinstance(arg, str) + } + ) + + device = device or V.graph.get_current_device_or_throw() + self.writeline( + KernelCallLine( + self, + kernel_name=kernel_name, + call_args=call_args, + # pyrefly: ignore [bad-argument-type] + raw_keys=raw_keys, + # pyrefly: ignore [bad-argument-type] + raw_args=raw_args, + # pyrefly: ignore [bad-argument-type] + arg_types=arg_types, + triton=triton, + # pyrefly: ignore [bad-argument-type] + triton_meta=triton_meta, + device=device, + graph_name=V.graph.name, + # pyrefly: ignore [bad-argument-type] + original_fxnode_name=original_fxnode_name, + ) + ) + + def _generate_kernel_call_helper( + self, + kernel_name: str, + call_args, + *, + device=None, + triton=True, + arg_types=None, + raw_keys=None, + raw_args=None, + triton_meta=None, + graph_name="", + original_fxnode_name=None, + ): + device = device or V.graph.get_current_device_or_throw() + if not triton and device.type != "cuda": + if device.type == "cpu": + self.writeline(self.wrap_kernel_call(kernel_name, call_args)) + elif device.type == "mps": + # TODO: Fix me, MPS does not expose streams now + self.writeline( + self.wrap_kernel_call(f"{kernel_name}.generated_kernel", call_args) + ) + else: + raise RuntimeError(f"device {device.type} nyi") + return + + call_args_str = self.prepare_triton_kernel_call(call_args) + call_args_str = ", ".join(call_args_str) + stream_name = PythonWrapperCodegen.write_get_raw_stream( + self, device.index, graph_name + ) + if not triton: + stream_ptr = f"c_void_p({stream_name})" + self.writeline( + f"{kernel_name}.{kernel_name}({call_args_str}, {stream_ptr})" + ) + return + + self.write_triton_header_once() + + if ( + config.triton.autotune_at_compile_time + and kernel_name not in self.kernel_autotune_names + ): + # Create example args for autotune in a separate epilogue + assert arg_types is not None and len(call_args) == len(arg_types), ( + "call_args and arg_types do not match" + ) + + autotune_args = None + if original_fxnode_name and V.graph.autotuning_mapping: + autotune_args = V.graph.autotuning_mapping.get( + original_fxnode_name, None + ) + + def get_autotune_deletion_call() -> str: + """After all the autotune kernel calls have been written (i.e. + self.kernel_autotune_example_args is complete), returns a deletion call + for all autotune example tensors that are unnecessary after kernel_name + is called.""" + tensors_to_delete = [ + tensor + for tensor, kn in self.kernel_autotune_example_args.values() + if kn == kernel_name + ] + if tensors_to_delete: + return f"del {', '.join(tensors_to_delete)}\n" + return "" + + def infer_arg_by_inputs(raw_keys, raw_args, idx, reused_args): + """We try to infer raw_arg (i.e. raw_args[idx]) from remaining raw_args. + This is particularly useful for jagged cases, where the dimension is often + being passed in as an input.""" + + target_arg = raw_args[idx] + if target_arg in reused_args: + return True + + for i, (raw_key, raw_arg) in enumerate(zip(raw_keys, raw_args)): + if i == idx or not isinstance(raw_arg, IRNode): + continue + + triton_input = "" + if autotune_args and raw_key in autotune_args: + triton_input = self.get_autotuning_input_name( # type: ignore[attr-defined] + autotune_args[raw_key] + ) + if triton_input == "": + continue + + try: + layout = raw_arg.get_layout() + for dim, s in enumerate(layout.size): + if s == target_arg: + reused_args[target_arg] = f"{triton_input}.shape[{dim}]" + return True + except NotImplementedError: + # If layout for this IRNode is not implemented, we could just skip. + # Only raise for other Error cases. + continue + return False + + all_args = [] + if raw_args is None: + # create a dummy raw_args for uniform behavior in the following loop + assert raw_keys is None, "keys are not None but args are" + raw_keys = [None] * len(call_args) + raw_args = [None] * len(call_args) + else: + assert len(raw_args) == len(call_args), ( + "call_args and raw_args do not match" + ) + + reused_args = {} + for i, (arg, arg_type, raw_key, raw_arg) in enumerate( + # pyrefly: ignore [no-matching-overload] + zip(call_args, arg_types, raw_keys, raw_args) + ): + key = None + if isinstance(arg, str) and "=" in str(arg): + # arg may be passed in a kwarg style, and then we need to extract its value + key, arg = arg.split("=") + + triton_input: Optional[str] = None + if autotune_args and raw_key in autotune_args: + triton_input = self.get_autotuning_input_name( # type: ignore[attr-defined] + autotune_args[raw_key] + ) + + if triton_input: + arg_str = triton_input + if not isinstance(arg_type, torch_dtype) and ( + issubclass(arg_type, sympy.Basic) + or isinstance(arg, SymbolicCallArg) + ): + reused_args[raw_arg] = arg_str + elif raw_key == "" and infer_arg_by_inputs( + raw_keys, raw_args, i, reused_args + ): + # Empty raw_key means this is a arg that's not native to the triton kernel, + # and is being added by inductor. + arg_str = reused_args[raw_arg] + elif isinstance(arg_type, torch_dtype): + # workspace allocation is already generated by `generate_workspace_allocation()` + # in `TritonKernel.call_kernel()`. + if re.match(r"^(workspace|semaphore)", arg): + arg_str = arg + elif arg not in self.kernel_autotune_example_args: + arg_str = self.generate_example_arg_value( + arg, arg_type, raw_arg + ) + else: + arg_str = self.kernel_autotune_example_args[arg][0] + self.kernel_autotune_example_args[arg] = (arg_str, kernel_name) + else: + arg_str = self.generate_example_arg_value(arg, arg_type, raw_arg) + all_args.append(arg_str if key is None else f"{key}={arg_str}") + + # Make sure kernel launch under a device guard because models don't always run on device 0 + self.kernel_autotune_calls.writeline( + f"with {V.graph.device_ops.device_guard(device.index)}:" + ) + self.kernel_autotune_calls.do_indent() + self.kernel_autotune_calls.writeline( + f"{kernel_name}.run({', '.join(all_args)}, stream={stream_name})" + ) + self.kernel_autotune_calls.do_unindent() + + self.kernel_autotune_calls.writeline( + DelayReplaceLine("", get_autotune_deletion_call, "") + ) + self.kernel_autotune_names.add(kernel_name) + if V.graph.cpp_wrapper: + # For cpp wrapper, no need to continue codegen for the main body + return + + # add debug printer code for triton kernel calls at (jit) inductor level + debug_printer_manager = V.graph.wrapper_code.debug_printer + debug_printer_manager.set_printer_args(call_args, kernel_name, arg_types, None) + with debug_printer_manager: + self.writeline(f"{kernel_name}.run({call_args_str}, stream={stream_name})") + self.write_triton_header_once() + + def writeline(self, line): + self.lines.append(line) + + def writelines(self, lines): + for line in lines: + self.writeline(line) + + def enter_context(self, ctx): + self.lines.append(LineContext(ctx)) + + def val_to_arg_str(self, s, type_=None): + from torch.utils._triton import has_triton_package + + if has_triton_package(): + import triton + + if isinstance(s, SymTypes): + return pexpr(s.node.expr) + elif isinstance(s, sympy.Expr): + return pexpr(s) + elif isinstance(s, (tuple, list)): + + @dataclasses.dataclass + class Shim: + ref: Any + + def __repr__(self): + return self.ref + + # Explicitly call the Python version of val_to_arg_str + return repr( + type(s)(Shim(PythonWrapperCodegen.val_to_arg_str(self, a)) for a in s) + ) + elif isinstance(s, torch._ops.OpOverload): + return _get_qualified_name(s) + elif isinstance(s, (ir.Buffer, ir.MutableBox, ReinterpretView)): + return s.codegen_reference() + elif has_triton_package() and isinstance(s, triton.language.dtype): # type: ignore[possibly-undefined] + return repr(s) + elif isinstance(s, ir.GeneratorState): + return s.codegen_reference() + elif is_opaque_value_type(type(s)): + opaque_type = type(s) + V.graph.opaque_value_type_classes[opaque_type.__name__] = opaque_type + return repr(s) + else: + return repr(s) + + # The following methods are for memory management + def make_buffer_allocation(self, buffer: BufferLike): + device = buffer.get_device() + dtype = buffer.get_dtype() + shape = tuple(buffer.get_size()) + allocation_shape = tuple(V.graph.get_allocation_size(buffer)) + stride = tuple(buffer.get_stride()) + is_pinned = buffer.get_is_pinned() + return self.make_allocation( + buffer.get_name(), device, dtype, shape, stride, allocation_shape, is_pinned + ) + + @cache_on_self + def write_memory_track_allocation_once(self): + import_str = """ + from torch._inductor.runtime.debug_utils import check_memory_step, track_tensor + """ + if not V.graph.cpp_wrapper: + self.imports.splice(import_str, strip=True) + + def make_allocation( + self, name, device, dtype, shape, stride, allocation_shape=None, is_pinned=False + ): + if allocation_shape is None: + allocation_shape = shape + + codegen_shape_tuple = self.codegen_python_shape_tuple(shape) + codegen_allocation_shape_tuple = self.codegen_python_shape_tuple( + allocation_shape + ) + codegen_stride_tuple = self.codegen_python_shape_tuple(stride) + if torch._inductor.config.test_configs.track_memory_lifecycle: + out = ( + f"{name} = tracked_empty_strided(" + f"{codegen_allocation_shape_tuple}, " + f"{codegen_stride_tuple}, " + f"dtype={dtype}, " + f"device='{device.type}', " + f"name='{name}')" + ) + elif device.type == "cpu" and is_pinned: + out = ( + f"{name} = empty_strided_cpu_pinned(" + f"{codegen_allocation_shape_tuple}, " + f"{codegen_stride_tuple}, " + f"{dtype})" + ) + elif device.type in ("cpu", "cuda", "xpu", "mtia"): + # optimized path for faster allocations, saving ~2us versus the stuff below + out = ( + f"{name} = empty_strided_{device.type}(" + f"{codegen_allocation_shape_tuple}, " + f"{codegen_stride_tuple}, " + f"{dtype})" + ) + # all other devices: + else: + out = ( + f"{name} = empty_strided(" + f"{codegen_allocation_shape_tuple}, " + f"{codegen_stride_tuple}, " + f"device='{device.type}', dtype={dtype})" + ) + if codegen_shape_tuple != codegen_allocation_shape_tuple: + # need an extra as_strided call + out = out + f".as_strided({codegen_shape_tuple}, {codegen_stride_tuple})" + return out + + def make_comment(self, line): + self.writeline(CommentLine(line)) + + def make_tensor_alias(self, new_name, old_name, comment=""): + return f"{self.declare}{new_name} = {old_name}{self.ending} {self.comment} {comment}" + + def make_buffer_free(self, buffer: Union[BufferLike, ir.TorchBindObject]): + return f"del {buffer.get_name()}" + + def make_free_by_names(self, names_to_del: list[str]): + return f"del {', '.join(name for name in names_to_del)}" + + def codegen_exact_buffer_reuse(self, old_name: str, new_name: str, del_line: str): + return f"{self.declare_maybe_reference}{new_name} = {old_name}{del_line}{self.ending} {self.comment} reuse" + + def write_provenance_debug_handle( + self, + kernel_name, + debug_handle: Optional[int] = None, + ): + if debug_handle is not None: + self.writeline( + f"{self.comment} [Provenance debug handles] {kernel_name}:{debug_handle}" + ) + + def make_buffer_reuse(self, old: BufferLike, new: BufferLike, delete_old: bool): + assert old.get_dtype() == new.get_dtype() + old_name = old.get_name() + new_name = new.get_name() + del_line = ";" + if old_name not in V.graph.get_output_names() and delete_old: + del_line = f"; {self.make_buffer_free(old)}" + + if old.get_size() == new.get_size() and old.get_stride() == new.get_stride(): + return self.codegen_exact_buffer_reuse(old_name, new_name, del_line) + + reinterpret_view = self.codegen_reinterpret_view( + old, new.get_size(), new.get_stride(), 0, self.wrapper_call.writeline + ) + return f"{self.declare}{new_name} = {reinterpret_view}{del_line} {self.comment} reuse" + + def codegen_deferred_allocation(self, name: str, view: ir.ReinterpretView) -> None: + self.writeline( + DeferredLine( + name, + f"{self.declare}{name} = {view.codegen_reference()}{self.ending} {self.comment} alias", + ) + ) + + def codegen_allocation(self, buffer: ir.Buffer): + name = buffer.get_name() + + if ( + name in V.graph.removed_buffers + or name in self.allocated + or isinstance(buffer, (ir.DonatedBuffer, ir.SubgraphBuffer, ir.InputBuffer)) + ): + return + self.allocated.add(name) + if ( + isinstance( + buffer.get_defining_op(), + (ir.ExternKernelAlloc, ir.MultiOutput), + ) + and not buffer.should_allocate() + ): + return + + layout = buffer.get_output_spec() + if isinstance(layout, ir.MutationLayoutSHOULDREMOVE): + return + if isinstance(layout, ir.NoneLayout): + return + if isinstance(layout, ir.NonOwningLayout): + assert isinstance(layout.view, ir.ReinterpretView), ( + f"unexpected {type(layout.view)}: {layout.view}" + ) + box = layout.view.data + assert isinstance(box, ir.StorageBox), type(box) + input_buffer = box.data + assert isinstance(input_buffer, (ir.Buffer, ir.ReinterpretView)), type( + input_buffer + ) + if isinstance(input_buffer, ir.ReinterpretView): + + def unwrap_views(target) -> ir.Buffer: + if isinstance(target, ir.BaseView): + return unwrap_views(target.unwrap_view()) + if isinstance(target, ir.MutableBox): + return unwrap_views(target.data) + assert isinstance(target, ir.Buffer), type(target) + return target + + input_buffer = unwrap_views(input_buffer) + self.codegen_allocation(input_buffer) + self.writeline(ReinterpretLine(self, input_buffer, buffer, layout)) + return + + if isinstance(layout, ir.CommBufferLayout): + self.writeline(CommBufferAllocateLine(self, buffer)) + return + + self.writeline(AllocateLine(self, buffer)) + + def codegen_free(self, buffer): + name = buffer.get_name() + + # can be freed but not reused + if isinstance(buffer, (ir.InputBuffer, ir.TorchBindObject)): + self.writeline(FreeLine(self, buffer)) + return + + if isinstance(buffer.get_output_spec(), ir.CommBufferLayout): + # Comm buffers are not eligible for in-place reuse. Their reuse is + # achieved exclusively via buffer planning. + self.writeline(CommBufferFreeLine(self, buffer)) + return + + if not self.can_reuse(buffer): + return + self.freed.add(name) + + self.writeline(FreeIfNotReusedLine(self, buffer)) + + def can_reuse(self, input_buffer, output_buffer=None): + name = input_buffer.get_name() + return not ( + name in V.graph.removed_buffers + or ( + name in V.graph.graph_inputs + and not isinstance( + V.graph.graph_inputs_original[name], ir.DonatedBuffer + ) + ) + or name in V.graph.constants + or name in V.graph.torchbind_constants + or name in V.graph.never_reuse_buffers + or name in self.freed + ) + + def did_reuse(self, buffer, reused_buffer): + # Check whether a given buffer was reused by a possible reuser in the wrapper codegen + # Can be consulted from inside ir codegen, e.g. to determine whether a copy is needed + return ( + buffer.get_name() in self.reuses + and self.reuses[buffer.get_name()] == reused_buffer.get_name() + ) + + def codegen_inplace_reuse(self, input_buffer: ir.Buffer, output_buffer: ir.Buffer): + assert can_match_buffer_size(input_buffer, output_buffer) + self.codegen_allocation(input_buffer) + self.freed.add(input_buffer.get_name()) + self.allocated.add(output_buffer.get_name()) + self.reuses[output_buffer.get_name()] = input_buffer.get_name() + self.writeline(ReuseLine(self, input_buffer, output_buffer)) + + def codegen_unbacked_symbol_decl(self, symbol): + name = str(symbol) + if name in self.unbacked_symbol_decls: + return name + else: + # When in CppWrapperCpu, we should only generate the declaration once + self.unbacked_symbol_decls.add(name) + return self.declare + name + + def codegen_unbacked_symbol_defs_for_outputs( + self, + output_name: str, + outputs: Any, + unbacked_bindings: Optional[dict[sympy.Symbol, pytree.KeyPath]], + ) -> None: + unbacked_bindings = resolve_unbacked_bindings( + V.graph.sizevars.shape_env, unbacked_bindings + ) + self.writeline( + UnbackedSymbolDefsLine(self, output_name, outputs, unbacked_bindings) + ) + + def _codegen_unbacked_symbol_defs_for_outputs( + self, + output_name: str, + outputs: Any, + unbacked_bindings: Optional[dict[sympy.Symbol, pytree.KeyPath]], + ) -> None: + if not unbacked_bindings: + return + + # This code is designed to generate code expressions from symbolic paths (keypaths) + # associated with certain symbols (unbacked bindings). These keypaths describe how + # to access the unbacked symbol in a structured way. + # For example, we might want to generate "u0 = outs[0].stride(1)"", where s = u0, and the keypath + # describes the structure of "outs[0].stride(1)", like [SequenceKey(0), CallMethodKey("stride"), SequenceKey[1]]. + for s, keypath in unbacked_bindings.items(): + # `go` recursively constructs a code expression by processing each element of + # the keypath and construct the expression incrementally. + # For example, given output name outs and keypath [SequenceKey(0), CallMethodKey("stride", 1)], + # it generates "outs[0]" based on SequenceKey(0), then recursively go("outs[0]", [CallMethodKey("stride"), ...]) + def go(expr: str, keypath: pytree.KeyPath): + if keypath == (): + return expr + + if ( + len(keypath) >= 2 + and isinstance(keypath[0], CallMethodKey) + and isinstance(keypath[1], pytree.SequenceKey) + ): + return go( + f"{expr}.{keypath[0].name}({keypath[1].idx})", keypath[2:] + ) + elif isinstance(keypath[0], CallMethodKey): + return go(f"{expr}.{keypath[0].name}()", keypath[1:]) + elif isinstance(keypath[0], pytree.SequenceKey): + return ( + go(f"std::get<{keypath[0].idx}>({expr})", keypath[1:]) + if V.graph.cpp_wrapper + else go(f"{expr}[{keypath[0].idx}]", keypath[1:]) + ) + elif isinstance(keypath[0], DivideByKey): + # TODO: need to assert divisibility + # TODO: this is invalid C++ codegen + return go(f"{expr}.__floordiv__({keypath[0].divisor})", keypath[1:]) + else: + raise AssertionError(f"unrecognized keypath {keypath}") + + # `go_outer` manages the top-level logic for generating the final expression. + # It handles special cases for C++ code generation and adjusts + # the keypath based on the context (e.g., single vs. multiple outputs). + def go_outer(): # type: ignore[no-untyped-def] + if V.graph.cpp_wrapper: + # Special handling for the top level buffer access, + # because self.get_name() is actually never bound; the + # individual output arguments are bound by + # generate_c_shim_fallback_kernel + if len(outputs) == 1: + out = outputs[0] + # When fallback kernel returns a list consisting of a single tensor, + # the output is represented as a MultiOutput with non empty indices. + # In this case, we strip the first key path away. + return go( + outputs[0].get_name(), + keypath[1:] + if isinstance(out, ir.MultiOutput) and len(out.indices) != 0 + else keypath, + ) + else: + assert isinstance(keypath[0], pytree.SequenceKey) + return go(outputs[keypath[0].idx].get_name(), keypath[1:]) + else: + return go(output_name, keypath) + + self.writeline( + f"{self.codegen_unbacked_symbol_decl(s)} = {go_outer()}{self.ending}" + ) + + def codegen_subgraph_by_inlining(self, subgraph, outer_inputs, outer_outputs): + # TODO (desertfire) - This function is the old way of supporting + # subgraph codegen by inlining subgraphs in the output code. For python + # wrapper, we have moved to lifting subgraphs as functions, supported by + # `codegen_subgraph` function. + # + # However this does not work with cpp wrapper. With cpp wrapper, we make + # two passes and the kernels are shared from the first pass to the next. + # Therefore, both the Python and CppWrapper need to share the some + # codegen infra. For now, CppWrapperCpu has not been updated to lift the + # subgraph as functions. Therefore for cpp_wrapper first pass with + # PythonWrapper, we still fallback to the old way of inlining subgraphs + # in the output code. Once we update CppWrapperCpu, we can remove this + # function. + def _codegen_subgraph_prefix(): + assert len(subgraph.graph.graph_inputs) == len(outer_inputs) + for inner_input, outer_input in zip( + subgraph.graph.graph_inputs, outer_inputs + ): + self.writeline( + f"{self.declare}{inner_input} = {outer_input}{self.ending}" + ) + + def _codegen_subgraph_suffix(): + assert len(subgraph.graph.graph_outputs) == len(outer_outputs) + for inner_output, outer_output in zip( + subgraph.graph.graph_outputs, outer_outputs + ): + self.writeline( + f"{outer_output} = {inner_output.codegen_reference()}{self.ending}" + ) + + try: + self.push_codegened_graph(subgraph.graph) + self.writeline(f"{self.comment} subgraph: {subgraph.name}") + _codegen_subgraph_prefix() + parent_graph = V.graph + with V.set_graph_handler(subgraph.graph): + subgraph.graph.codegen_subgraph( + parent_graph=parent_graph, + ) + _codegen_subgraph_suffix() + finally: + self.pop_codegened_graph() + + def codegen_partition_call( + self, + partition_id: int, + partition_signatures: ir.GraphPartitionSignature, + ): + """Generate code to call a graph partition""" + input_deallocation = partition_signatures.input_deallocation + output_nodes = partition_signatures.output_nodes + + input_names = list(input_deallocation.keys()) + [ + symbol_input.name for symbol_input in partition_signatures.symbol_inputs + ] + + inputs = ", ".join(input_names) + ("," if len(input_names) == 1 else "") + + output_names = [node.get_name() for node in output_nodes] + outputs = ", ".join(output_names) + ("," if len(output_nodes) == 1 else "") + + # Create a list of inputs for the subgraph call + self.writeline(f"partition{partition_id}_args = [{inputs}]") + + names_to_del = [ + name for name, deallocate in input_deallocation.items() if deallocate + ] + if names_to_del: + self.writeline(f"del {', '.join(names_to_del)}") + + # Call the subgraph launcher function + self.writeline( + f"({outputs}) = self.partitions[{partition_id}](partition{partition_id}_args)" + ) + self.writeline(f"del partition{partition_id}_args") + + def set_all_partition_names(self, num_partitions: int): + self.all_partition_names = [f"partition_{idx}" for idx in range(num_partitions)] + + def codegen_subgraph_call_with_flattened_outputs( + self, subgraph, outer_inputs, outer_flattened_outputs + ): + # Get the input and output names of the subgraph + outer_output_names = ", ".join(outer_flattened_outputs) + ( + "," if len(outer_flattened_outputs) == 1 else "" + ) + outer_input_names = ", ".join(outer_inputs) + ( + "," if len(outer_inputs) == 1 else "" + ) + + self.writeline(f"{subgraph.graph.name}_args = [{outer_input_names}]") + + # Call the subgraph launcher function + self.writeline( + f"({outer_output_names}) = {subgraph.graph.name}({subgraph.graph.name}_args)" + ) + + def codegen_subgraph_call(self, subgraph, outer_inputs, outer_buffer_name): + # Get the input and output names of the subgraph + outer_input_names = ", ".join(outer_inputs) + ( + "," if len(outer_inputs) == 1 else "" + ) + + self.writeline(f"{subgraph.graph.name}_args = [{outer_input_names}]") + + # Since the buffers are already put into the args list, we can free the + # buffers here. + V.graph.scheduler.free_buffers() + + # Call the subgraph launcher function + self.writeline( + f"{outer_buffer_name} = {subgraph.graph.name}({subgraph.graph.name}_args)" + ) + + def codegen_subgraph_common(self, subgraph): + self.push_codegened_graph(subgraph.graph) + self.make_comment("") + self.make_comment(f"{self.comment} subgraph: {subgraph.name}") + + parent_graph = V.graph + subgraph.graph.cpp_wrapper = parent_graph.cpp_wrapper + subgraph.graph.fx_wrapper = parent_graph.fx_wrapper + + if subgraph.graph.name not in self.already_codegened_subgraphs: + # If it is already codegened, the parent wrapper already has + # subgraph fn by name subgraph.graph.name + with V.set_graph_handler(subgraph.graph): + # do not graph partition for subgraph + with config.patch("graph_partition", False): + # Call the codegen of subgraph recursively + subgraph_code, _ = subgraph.graph.codegen() + subgraph_name = subgraph.graph.name + self.already_codegened_subgraphs.add(subgraph_name) + self.define_subgraph_launcher_fn(subgraph_name, subgraph_code) + + def codegen_subgraph_with_flattened_outputs( + self, subgraph, outer_inputs, outer_flattened_outputs + ): + self.codegen_subgraph_common(subgraph) + self.codegen_subgraph_call_with_flattened_outputs( + subgraph, outer_inputs, outer_flattened_outputs + ) + + def codegen_subgraph(self, subgraph, outer_inputs, outer_buffer_name): + # Codegen subgraph by recursively calling the codegen for the subgraph. + # This lifts the subgraph as a function in the output code. + self.codegen_subgraph_common(subgraph) + self.codegen_subgraph_call(subgraph, outer_inputs, outer_buffer_name) + + def codegen_invoke_subgraph(self, invoke_subgraph): + name = invoke_subgraph.get_name() + + self.writeline(f"{name} = [None] * {len(invoke_subgraph.outputs)}") + outer_inputs = [buf.codegen_reference() for buf in invoke_subgraph.inputs] + + if V.graph.aot_mode: + outer_outputs = [ + f"{name}[{i}]" for i in range(len(invoke_subgraph.outputs)) + ] + self.codegen_subgraph_by_inlining( + invoke_subgraph.subgraph, outer_inputs, outer_outputs + ) + else: + self.codegen_subgraph(invoke_subgraph.subgraph, outer_inputs, name) + + def codegen_conditional(self, conditional) -> None: + name = conditional.get_name() + + outer_inputs = [buf.codegen_reference() for buf in conditional.operands] + + predicate = conditional.predicate.codegen_reference() + if not isinstance(conditional.predicate, ir.ShapeAsConstantBuffer): + # move the Tensor predicate to host + predicate = f"{predicate}.item()" + + self.writeline(f"{name} = [None] * {len(conditional.outputs)}") + self.writeline(f"if {predicate}:") + self.writeline(EnterSubgraphLine(self, conditional.true_subgraph.graph)) + if V.graph.aot_mode: + outer_outputs = [f"{name}[{i}]" for i in range(len(conditional.outputs))] + self.codegen_subgraph_by_inlining( + conditional.true_subgraph, outer_inputs, outer_outputs + ) + else: + self.codegen_subgraph(conditional.true_subgraph, outer_inputs, name) + + self.writeline(ExitSubgraphLine(self)) + self.writeline("else:") + self.writeline(EnterSubgraphLine(self, conditional.false_subgraph.graph)) + if V.graph.aot_mode: + outer_outputs = [f"{name}[{i}]" for i in range(len(conditional.outputs))] + self.codegen_subgraph_by_inlining( + conditional.false_subgraph, outer_inputs, outer_outputs + ) + else: + self.codegen_subgraph(conditional.false_subgraph, outer_inputs, name) + self.writeline(ExitSubgraphLine(self)) + + def codegen_while_loop(self, while_loop, stack_output): + """while_loop is codegened as a host side while_loop""" + + def codegen_subgraph(subgraph, outer_inputs, outer_outputs): + """Helper method to deduplicate subgraph codegen logic""" + if V.graph.aot_mode: + self.codegen_subgraph_by_inlining(subgraph, outer_inputs, outer_outputs) + else: + self.codegen_subgraph_with_flattened_outputs( + subgraph, outer_inputs, outer_outputs + ) + + name = while_loop.get_name() + outer_carried_inputs = [ + buf.codegen_reference() for buf in while_loop.carried_inputs + ] + outer_additional_inputs = [ + buf.codegen_reference() for buf in while_loop.additional_inputs + ] + + ckp_offset = len(outer_carried_inputs) + self.writeline(f"{name} = [None] * {len(outer_carried_inputs)}") + if stack_output: + self.writeline( + f"{name}.extend([[] for _ in range({len(outer_carried_inputs)})])" + ) + + for i, inp in enumerate(outer_carried_inputs): + # set the initial state before the loop + self.writeline(f"{name}[{i}] = {inp}") + + cond_outer_inputs = [ + *[f"{name}[{i}]" for i in range(len(outer_carried_inputs))], + *outer_additional_inputs, + ] + cond_outer_outputs = [f"{name}_cond_result"] + body_outer_inputs = list( + cond_outer_inputs + ) # same inputs for cond_fn and body_fn + # Carry over the state from body_fn. Note: We only carry over + # the carried_inputs part of the inputs, the additional ones + # are passed in as they're before. + body_outer_outputs = body_outer_inputs[: len(outer_carried_inputs)] + # Check condition at the beginning and set up flag + codegen_subgraph( + while_loop.cond_subgraph, cond_outer_inputs, cond_outer_outputs + ) + self.writeline(f"should_loop = {cond_outer_outputs[0]}") + self.writeline("if not should_loop:") + if stack_output: + # Handle the case when loop never executes + for i, carried_input in enumerate(outer_carried_inputs): + self.writeline(EnterSubgraphLine(self, while_loop.body_subgraph.graph)) + self.writeline(f"{name}[{i}] = {carried_input}.unsqueeze(0).clone()") + self.writeline(ExitSubgraphLine(self)) + else: + for i, carried_input in enumerate(outer_carried_inputs): + self.writeline(EnterSubgraphLine(self, while_loop.body_subgraph.graph)) + self.writeline(f"{name}[{i}] = {carried_input}.clone()") + self.writeline(ExitSubgraphLine(self)) + + self.writeline("while should_loop:") + # Body execution + self.writeline(EnterSubgraphLine(self, while_loop.body_subgraph.graph)) + codegen_subgraph( + while_loop.body_subgraph, body_outer_inputs, body_outer_outputs + ) + self.writeline(ExitSubgraphLine(self)) + + # Collect outputs if enabled + if stack_output: + self.writeline(EnterSubgraphLine(self, while_loop.body_subgraph.graph)) + for i in range(len(outer_carried_inputs)): + self.writeline(f"{name}[{i + ckp_offset}].append({name}[{i}])") + self.writeline(ExitSubgraphLine(self)) + + # Condition check at end of loop + self.writeline(EnterSubgraphLine(self, while_loop.cond_subgraph.graph)) + codegen_subgraph( + while_loop.cond_subgraph, cond_outer_inputs, cond_outer_outputs + ) + self.writeline(ExitSubgraphLine(self)) + self.writeline(f" should_loop = {cond_outer_outputs[0]}") + + # Stack outputs after loop completion + if stack_output: + self.writeline("# Stack outputs after loop completion") + for i in range(len(outer_carried_inputs)): + self.writeline(f"if len({name}[{i + ckp_offset}]) > 0:") + self.writeline(EnterSubgraphLine(self, while_loop.body_subgraph.graph)) + self.writeline( + f"{name}[{i}] = torch.stack({name}[{i + ckp_offset}], dim=0)" + ) + self.writeline(ExitSubgraphLine(self)) + + @staticmethod + def statically_known_int_or_none(x): + try: + if getattr(x, "free_symbols", None): + # _maybe_evaluate_static will return (s0 // (2 // s0)) as 2, but + # the actual codegen will still generate the full expression here. + return None + if isinstance(x, int): + return x + val = V.graph._shape_env._maybe_evaluate_static(x) + if val is None: + return val + return int(val) # type: ignore[call-overload] + except Exception: + return None + + @staticmethod + def statically_known_list_of_ints_or_none(lst): + result = [] + for x in lst: + num = PythonWrapperCodegen.statically_known_int_or_none(x) + if num is None: + return None + result.append(num) + return result + + @staticmethod + def is_statically_known_list_of_ints(lst): + return ( + PythonWrapperCodegen.statically_known_list_of_ints_or_none(lst) is not None + ) + + @staticmethod + def static_shape_for_buffer_or_none(buffer): + return PythonWrapperCodegen.statically_known_list_of_ints_or_none( + buffer.get_size() + ) + + @staticmethod + def can_prove_buffer_has_static_shape(buffer): + return PythonWrapperCodegen.static_shape_for_buffer_or_none(buffer) is not None + + def write_kernel_context_guard( + self, + kernel_name: str, + node_schedule: Union[Sequence[BaseSchedulerNode], ExternKernel], + ): + return + + def write_kernel_context_guard_begin( + self, + ): + """ + Mark the beginning of kernel context guard + """ + return + + def write_kernel_context_guard_end( + self, + ): + """ + Mark the end of kernel context guard + """ + return + + +class SubgraphPythonWrapperCodegen(PythonWrapperCodegen): + """ + A wrapper codegen that generates code for a subgraph. For most of the + methods, we rely on the implementation in the PythonWrapperCodegen. But we + override a few functions to produce cleaner code (like avoiding writing + imports twice in the output code) + """ + + def __init__( + self, + subgraph_name: str, + parent_wrapper: PythonWrapperCodegen, + partition_signatures: Optional[ir.GraphPartitionSignature] = None, + ): + # It is necessary to set the subgraph_name before calling super __init__ + # because __init__ calls set_launcher_fn_name + self.subgraph_name = subgraph_name + self.parent_wrapper = parent_wrapper + self.partition_signatures = partition_signatures + + super().__init__() + + root = self.get_root_graph() + # Only generate auto-tuning block in the main graph + self.kernel_autotune_defs = root.kernel_autotune_defs + self.kernel_autotune_calls = root.kernel_autotune_calls + # Only store kernel src to name mapping in the main graph + self.src_to_kernel = root.src_to_kernel + # Same here, only define user-defined Triton kernels in the main graph + self.user_defined_kernel_cache = root.user_defined_kernel_cache + + def set_launcher_fn_name(self) -> None: + # This sets up the name of the function containing the launcher code of + # the subgraph. + # pyrefly: ignore [bad-assignment] + self.launcher_fn_name = self.subgraph_name + + def write_header(self) -> None: + pass + + def add_benchmark_harness(self, output): + pass + + def benchmark_compiled_module(self, output): + pass + + def write_async_compile_wait(self): + pass + + def next_kernel_suffix(self) -> str: + # Ensures that subgraphs kernels do not clash with each other + return self.parent_wrapper.next_kernel_suffix() + + def generate_after_suffix(self, result: IndentedBuffer) -> None: + return + + def write_launcher_fn_call_get_indent(self) -> int: + self.prefix.splice( + f""" + def {self.launcher_fn_name}(args): + """ + ) + prefix_indent = 1 + return prefix_indent + + def get_wrapper_call_indent(self) -> int: + return 1 + + def get_graph_inputs( + self, + ) -> dict[str, Union[ir.TensorBox, ir.TorchBindObject, sympy.Expr, None]]: + if signature := self.partition_signatures: + inputs = signature.input_nodes | { + str(s): s for s in signature.symbol_inputs + } + else: + inputs = V.graph.graph_inputs + return inputs + + def get_graph_input_names(self) -> list[str]: + if signature := self.partition_signatures: + names = list(signature.input_nodes.keys()) + [ + symbol_input.name for symbol_input in signature.symbol_inputs + ] + else: + names = V.graph.graph_input_names + return names + + def get_graph_outputs(self) -> list[IRNode]: + if signature := self.partition_signatures: + outputs = signature.output_nodes + else: + outputs = V.graph.graph_outputs + return outputs + + def codegen_allocation(self, buffer: ir.Buffer): + name = buffer.get_name() + if (signature := self.partition_signatures) and name in signature.input_nodes: + # skip allocation if buffer is a subgraph input. + # This allows reusing an input buffer in graph partition, + # although this is not allowed in general. + return + + super().codegen_allocation(buffer) + + @cache_on_self + def write_triton_header_once(self) -> None: + # TODO: Uncomment in future. This will be needed to support subgraph + # codegen for cpp wrapper. + # if config.triton.autotune_at_compile_time: + # import_str = self.triton_header_str() + # self.kernel_autotune_calls.splice(import_str) + self.parent_wrapper.write_triton_header_once() + + @cache_on_self + def write_get_raw_stream_header_once(self) -> None: + # TODO: Uncomment in future. This will be needed to support subgraph + # codegen for cpp wrapper. + # if config.triton.autotune_at_compile_time: + # self.kernel_autotune_calls.writeline( + # V.graph.device_ops.import_get_raw_stream_as("get_raw_stream") + # ) + self.parent_wrapper.write_get_raw_stream_header_once() + + @cache_on_self + def get_root_graph(self) -> PythonWrapperCodegen: + root: PythonWrapperCodegen | SubgraphPythonWrapperCodegen = self + while isinstance(root, SubgraphPythonWrapperCodegen): + root = root.parent_wrapper + + assert isinstance(root, PythonWrapperCodegen) + return root + + def generate_and_run_autotune_block(self): + # Only execute auto-tuning block in the main graph + pass diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/wrapper_fxir.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/wrapper_fxir.py new file mode 100644 index 0000000000000000000000000000000000000000..02c498d6debce64609751edae5c4e9287797fa6a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/wrapper_fxir.py @@ -0,0 +1,1213 @@ +import dataclasses +import functools +import logging +import operator +import textwrap +from collections import Counter +from collections.abc import Callable, Sequence +from typing import Any, Optional, Union + +import sympy + +import torch +from torch._export.passes._node_metadata_hook import ( + _node_metadata_hook, + _set_node_metadata_hook, +) +from torch._higher_order_ops.triton_kernel_wrap import ( + TraceableTritonKernelWrapper, + tracing_triton_hopifier_singleton, + triton_kernel_wrapper_mutation, +) +from torch._inductor.codecache import LambdaFuture, PyCodeCache +from torch._inductor.runtime.triton_heuristics import CachingAutotuner +from torch._inductor.select_algorithm import extern_kernels # noqa: F401 +from torch._inductor.utils import convert_to_symint +from torch._inductor.virtualized import V +from torch._library.triton import wrap_triton +from torch.fx import GraphModule +from torch.fx.experimental.symbolic_shapes import ( + CallMethodKey, + ConvertIntKey, + DivideByKey, + free_unbacked_symbols, +) +from torch.utils import _pytree as pytree +from torch.utils._sympy.functions import FloorDiv +from torch.utils._sympy.interp import _run_sympy_handler, sympy_interp +from torch.utils._sympy.reference import OptimizedPythonReferenceAnalysis +from torch.utils._sympy.solve import try_solve + +from .. import config, ir +from ..runtime.triton_compat import Config +from ..utils import cache_property_on_self, LineContext, ValueWithLineMap +from .common import ( + CodegenSymbol, + FileBackedGraphModule, + WorkspaceArg, + WorkspaceZeroMode, +) +from .wrapper import ( + AllocateLine, + BufferLike, + CommBufferAllocateLine, + CommBufferFreeLine, + CommentLine, + ConditionalLine, + DynamicScalarLine, + EnterDeviceContextManagerLine, + EnterSubgraphLine, + ExitDeviceContextManagerLine, + ExitSubgraphLine, + ExternKernelAllocLine, + ExternKernelOutLine, + FreeIfNotReusedLine, + FreeLine, + IndexPutFallbackLine, + KernelCallLine, + KernelDefinitionLine, + Line, + MultiOutputLine, + NullLine, + PythonWrapperCodegen, + ReinterpretLine, + ReuseLine, + ScatterFallbackLine, + SubgraphPythonWrapperCodegen, + SymbolicCallArg, + SymbolicCallArgLine, + UnbackedSymbolDefsLine, + WrapperLine, +) + + +aten = torch.ops.aten +log = logging.getLogger(__name__) + + +@dataclasses.dataclass +class SymbolBuffer(CodegenSymbol): + """ + Represents a sympy.Symbol graph input. + """ + + symbol: sympy.Symbol + + def get_name(self) -> str: + return str(self.symbol) + + def get_example(self) -> Union[torch.Tensor, torch.SymInt]: + sym_int = convert_to_symint(self.symbol) + assert isinstance(sym_int, torch.SymInt) + return sym_int + + +CodegenBuffer = Union[BufferLike, SymbolBuffer] + + +@dataclasses.dataclass +class TritonKernel: + """ + Stores metadata about Triton kernels for use in FX. + """ + + tuner: CachingAutotuner + wrapped: TraceableTritonKernelWrapper + + +def replace_floor_div(expr: sympy.Expr) -> sympy.Expr: + """ + Replace sympy.floor with FloorDiv. + """ + + def replace(expr: sympy.Expr) -> sympy.Expr: + expr = sympy.together(expr) + + # Division is represented as a Mul with a Rational factor or a Pow with negative + # exponent. We convert floor(Mul(...)) to FloorDiv(numerator, denominator) by + # partitioning factors into the numerator and denominator. + (numerator, denominator) = (sympy.S.One,) * 2 + for arg in sympy.Mul.make_args(expr): + if isinstance(arg, sympy.Rational): + numerator *= arg.numerator + denominator *= arg.denominator + elif isinstance(arg, sympy.Pow) and arg.exp.is_negative: + denominator *= arg.base**-arg.exp + else: + numerator *= arg + + return FloorDiv(numerator, denominator) + + return expr.replace(sympy.floor, replace) + + +class WrapperFxCodegen(PythonWrapperCodegen): + """ + Backend to generate wrapper code as an FX IR graph. + """ + + supports_caching = False + + def __init__(self, *args: Any, **kwargs: Any): + super().__init__(*args, **kwargs) + self.subgms: dict[str, torch.fx.GraphModule] = {} + + def codegen_inputs(self) -> None: + """ + This would generate code for symbolic input shapes, strides, etc. + Since the FX converter handles this, do nothing here. + """ + + def codegen_conditional(self, conditional: ir.Conditional) -> None: + """ + Conditional codegen normally emits a number of different wrapper lines. + Instead, FX conversion uses a dedicated line for the whole conditional. + """ + self.writeline(ConditionalLine(self, conditional)) + for subgraph in (conditional.true_subgraph, conditional.false_subgraph): + self.codegen_subgraph_common(subgraph) + + def define_subgraph_launcher_fn( + self, name: str, subgraph_code: Union[ValueWithLineMap, FileBackedGraphModule] + ) -> None: + """ + Record subgms as they're generated. + """ + assert isinstance(subgraph_code, FileBackedGraphModule) + self.subgms[name] = subgraph_code.gm + + @property + @cache_property_on_self + def is_subgraph(self) -> bool: + return isinstance(self, SubgraphPythonWrapperCodegen) + + def get_fx_graph_inputs( + self, + ) -> dict[str, Union[ir.TensorBox, ir.TorchBindObject, sympy.Expr, None]]: + """ + Get the input nodes corresponding to FX graph placeholders. + """ + # pyrefly: ignore [missing-argument] + if V.aot_compilation and not self.is_subgraph: + # AOT graphs must match the signature of the input module. + return { + node.name: V.graph.graph_inputs.get(node.name) + for node in V.graph.module.graph.find_nodes(op="placeholder") # type: ignore[operator, union-attr] + } + + return self.get_graph_inputs() + + def _generate(self, is_inference: bool) -> tuple[FileBackedGraphModule, None]: + self.run_wrapper_ir_passes(is_inference) + + prologue = "\n".join( + [ + self.imports.getvalue(), + self.header.getvalue(), + ] + ) + gm = FxConverter( + lines=self.lines, + prologue=prologue, + graph_inputs=self.get_fx_graph_inputs(), + graph_outputs=self.get_graph_outputs(), + subgms=self.subgms, + # pyrefly: ignore [missing-argument] + is_subgraph=self.is_subgraph, + ).generate() + + compiled_fn = self.compile_graph(gm) + + return FileBackedGraphModule(gm, compiled_fn), None + + def compile_graph(self, gm: GraphModule) -> Callable[..., Any]: + """ + Converts the graph module into a runnable function. The default implementation + is simply an interpreter calling kernels in eager mode. Derived backends can + override this to do further compilation. + """ + return gm.forward + + def write_header(self) -> None: + """ + Python subgraphs normally lack headers. + Override this behavior to generate prologues for FX subgraphs. + """ + PythonWrapperCodegen.write_header(self) + + @classmethod + def create( + cls: type["WrapperFxCodegen"], + is_subgraph: bool, + subgraph_name: Optional[str], + parent_wrapper: Optional[PythonWrapperCodegen], + partition_signatures: Optional[ir.GraphPartitionSignature] = None, + ) -> "WrapperFxCodegen": + if is_subgraph: + assert subgraph_name is not None + assert parent_wrapper is not None + + # Subgraphs override some methods of PythonWrapperCodegen. + # Apply these overrides to the user-provided class, with priority given to + # user-provided methods. + class SubgraphFxWrapperCodegen(cls, SubgraphPythonWrapperCodegen): # type: ignore[misc,valid-type] + def compile_graph(self, gm: GraphModule) -> Callable[..., Any]: + """ + Skip graph compilation for subgraphs. + """ + + def crash_if_run(*args: Any) -> None: + raise NotImplementedError("Cannot run a subgraph in isolation!") + + return crash_if_run + + return SubgraphFxWrapperCodegen( + subgraph_name, parent_wrapper, partition_signatures + ) + + return cls() + + +@dataclasses.dataclass +class FxConverter: + """ + Generates FX IR from Wrapper IR. As each instance is only meant to be used once, the + input and output code are stored as attributes. + """ + + lines: list[Line] + prologue: str + graph_inputs: dict[str, Union[ir.TensorBox, ir.TorchBindObject, sympy.Expr, None]] + graph_outputs: list[ir.IRNode] + subgms: dict[str, torch.fx.GraphModule] + is_subgraph: bool + + def __post_init__(self) -> None: + graph = torch.fx.Graph() + self.gm = GraphModule({}, graph) # Wrapper FX IR. + self.buffer_to_node: dict[ + Optional[str], torch.fx.Node + ] = {} # Symbol table for codegen. + self.kernels: dict[str, TritonKernel] = {} # Table to store Triton kernels. + self._unique_symbol_ids: Counter[str] = Counter() + self.tracer = torch.fx.proxy.GraphAppendingTracer(graph) + self.expr_to_proxy: dict[sympy.Expr, torch.fx.Proxy] = {} + + def _import_kernel(self, code: str, kernel_name: str) -> CachingAutotuner: + """ + Imports a kernel from source, possibly autotuning block parameters. + """ + module_code = "\n".join([self.prologue, code]) + mod = PyCodeCache.load(module_code) + kernel = getattr(mod, kernel_name) + + if isinstance(kernel, LambdaFuture): + kernel = kernel.result() + + if not isinstance(kernel, CachingAutotuner): + raise NotImplementedError( + textwrap.dedent(f""" + Unsupported type for kernel {kernel_name}: {type(kernel)}. + FX conversion only supports Triton kernels. + """) + ) + + return kernel + + def _create_as_strided( + self, + input_node: torch.fx.Node, + size: tuple[Any, ...], + stride: tuple[Any, ...], + offset: Union[int, sympy.Expr], + ) -> torch.fx.Node: + return self.gm.graph.call_function( + torch.as_strided, + args=( + input_node, + self._generate_sym_nodes(size), + self._generate_sym_nodes(stride), + self._generate_sym_node(offset), + ), + ) + + def _record_allocation(self, buffer: CodegenBuffer, node: torch.fx.Node) -> None: + """ + Updates the symbol table to record that an Inductor buffer maps to the result of + an FX node. + """ + assert node not in self.buffer_to_node + self.buffer_to_node[buffer.get_name()] = node + + def _free(self, buffer: Union[CodegenBuffer, ir.TorchBindObject]) -> None: + """ + Removes the buffer from the symbol table. + """ + name = buffer.get_name() + del self.buffer_to_node[name] + + def _lookup_args(self, args: tuple[Any, ...]) -> tuple[Any, ...]: + """ + Maps call args back to FX nodes. + """ + return tuple( + self.buffer_to_node[arg] + if isinstance(arg, str) + else arg.inner_expr + if isinstance(arg, SymbolicCallArg) + else arg + for arg in args + ) + + def _get_buffer(self, node: ir.IRNode) -> CodegenBuffer: + """ + Extract buffer data from an IR node. + """ + if isinstance(node, (ir.Buffer, WorkspaceArg)): + return node + elif isinstance(node, (ir.BaseView, ir.MutableBox)): + return self._get_buffer(node.data) + elif isinstance(node, sympy.Symbol): + return SymbolBuffer(node) + else: + raise NotImplementedError(f"Unable to extract buffer from node: {node}") + + def _generate_size_proxy( + self, node: torch.fx.Node, expr: sympy.Expr + ) -> torch.fx.Proxy: + proxy = torch.fx.Proxy(node, tracer=self.tracer) + self.expr_to_proxy[expr] = proxy + return proxy + + def _generate_graph_inputs(self) -> None: + """ + Converts graph inputs to FX placeholders. + """ + + for name, ir_node in self.graph_inputs.items(): + if ir_node is None: + # Create dummy input nodes to match the input signature + self.gm.graph.placeholder(name) + continue + + # Introduce a new symbol for constant inputs. + is_constant = isinstance(ir_node, (int, float, sympy.Integer, sympy.Float)) + buffer = ( + SymbolBuffer(sympy.Symbol(name, is_integer=True)) + if is_constant + else self._get_buffer(ir_node) + ) + placeholder_node = self.gm.graph.placeholder(buffer.get_name()) + placeholder_node.meta["val"] = ( + ir_node if is_constant else buffer.get_example() + ) + self._record_allocation(buffer, placeholder_node) + + # Record symbol definitions for dynamic shapes. + if isinstance(ir_node, sympy.Symbol): + self._generate_size_proxy(placeholder_node, ir_node) + + def _generate_graph_input_shapes(self) -> None: + """ + Generate nodes creating symints that are part of graph input + shape/strides. + """ + + def _codegen_symbol( + sym_or_exp: Union[sympy.Symbol, sympy.Expr], + base_node: torch.fx.Node, + target: torch._ops.OpOverload, + dim: int, + ) -> None: + def codegen_proxy() -> torch.fx.Proxy: + size_node = self.gm.graph.call_function(target, (base_node, dim)) + size_proxy = self._generate_size_proxy(size_node, sym_or_exp) + return size_proxy + + if isinstance(sym_or_exp, sympy.Symbol): + if sym_or_exp in self.expr_to_proxy: + return + codegen_proxy() + + elif isinstance(sym_or_exp, sympy.Integer): + return + + elif isinstance(sym_or_exp, sympy.Expr): + # Check if we need to solve for an undefined symbol. + undefined_symbols = [ + sym + for sym in sym_or_exp.free_symbols + if sym not in self.expr_to_proxy + ] + if len(undefined_symbols) == 0: + self._sympy_interp(sym_or_exp) + return + elif len(undefined_symbols) > 1: + raise ValueError(f"Underdetermined input expression: {sym_or_exp}") + + # Define a new symbol for the input size. + size_proxy = codegen_proxy() + size_symbol = sympy.Symbol( + size_proxy.node.name, integer=True, nonnegative=True + ) + self.expr_to_proxy[size_symbol] = size_proxy + + # Solve for the undefined symbol. + undefined_symbol = undefined_symbols[0] + solution = try_solve( + sympy.Eq(sym_or_exp, size_symbol), undefined_symbol + ) + if solution is None: + raise ValueError(f"Cannot solve input expression: {sym_or_exp}") + + # Since the symbol is a size, it must be an integer. + # Therefore, we can convert division to FloorDiv. + undefined_symbol_expr = solution[1] + if undefined_symbol.is_integer: + undefined_symbol_expr = replace_floor_div( + sympy.floor(undefined_symbol_expr) + ) + + # Generate FX for the symbol. + self._sympy_interp(undefined_symbol_expr) + self.expr_to_proxy[undefined_symbol] = self.expr_to_proxy[ + undefined_symbol_expr + ] + + for ir_node in self.graph_inputs.values(): + if isinstance(ir_node, ir.TensorBox): + buffer = self._get_buffer(ir_node) + placeholder_node = self.buffer_to_node[buffer.get_name()] + + for dim, size in enumerate(ir_node.get_size()): + _codegen_symbol( + size, placeholder_node, torch.ops.aten.sym_size.int, dim + ) + for dim, stride in enumerate(ir_node.get_stride()): + _codegen_symbol( + stride, placeholder_node, torch.ops.aten.sym_stride.int, dim + ) + + def _generate_graph_constants(self) -> None: + for name, value in V.graph.constants.items(): + node = self.gm.graph.get_attr(name) + node.meta["val"] = value + setattr(self.gm, name, value) + self.buffer_to_node[name] = node + + def _generate_buffer(self, node: ir.IRNode) -> Optional[torch.fx.Node]: + """ + Generates FX IR for transformations on a buffer, such as ReinterpretView. + Does nothing if no such transformations are present. + """ + + if isinstance(node, ir.ShapeAsConstantBuffer): + # Generate FX nodes to compute the shape expression. + return self._sympy_interp(node.expr).node + + def generate_to_buffer(node: ir.IRNode) -> Optional[BufferLike]: + if isinstance(node, (ir.Buffer, WorkspaceArg)): + return node + elif isinstance(node, ir.NoneAsConstantBuffer): + return None + elif isinstance(node, ir.MutableBox): + return generate_to_buffer(node.data) + elif isinstance(node, ir.ReinterpretView): + # We need to introduce a new symbol if the output is a ReinterpretView. + # Use a WorkspaceArg for this. + buffer = self._get_buffer(node.data) + assert isinstance(buffer, (ir.Buffer, WorkspaceArg)) + unique_name = self.gm.graph._graph_namespace.create_name( + f"{buffer.get_name()}_view", None + ) + device = buffer.get_device() + assert device + reused_as = WorkspaceArg( + count=buffer.get_size(), + zero_mode=WorkspaceZeroMode.UNINITIALIZED, + device=device, + outer_name=unique_name, + dtype=buffer.get_dtype(), + ) + + # Generate FX IR for the view. + self._generate_reinterpret_helper(buffer, reused_as, node.layout) + + return reused_as + else: + raise NotImplementedError(f"Unrecognized buffer/view node: {node}") + + buffer = generate_to_buffer(node) + return self.buffer_to_node[buffer.get_name()] if buffer is not None else None + + def _generate_outputs( + self, + ) -> Union[Optional[torch.fx.Node], list[Optional[torch.fx.Node]]]: + """ + Generate FX IR for graph outputs. + """ + output_nodes = [ + self._generate_buffer(node) for idx, node in enumerate(self.graph_outputs) + ] + + # Parent graphs with single return elements don't use a tuple. + output_value = ( + output_nodes[0] + if len(output_nodes) == 1 and not self.is_subgraph + else output_nodes + ) + + return output_value + + def _generate_subgm_getattrs(self) -> None: + """ + Generate getattr nodes for subgms. + """ + + def generate_getattr(name: str, subgm: torch.fx.GraphModule) -> torch.fx.Node: + self.gm.add_submodule(name, subgm) + node = self.gm.graph.get_attr(name) + node.meta["val"] = subgm + return node + + self.subgm_getattrs = { + name: generate_getattr(name, subgm) for name, subgm in self.subgms.items() + } + + def _get_subgm_attr(self, subgraph: ir.Subgraph) -> torch.fx.Node: + """ + Look up the getattr node for a subgraph. + """ + graph = subgraph.graph + assert graph is not None + return self.subgm_getattrs[graph.name] + + def generate(self) -> torch.fx.GraphModule: + """ + Main entrypoint for FX codegen. + """ + self._generate_graph_inputs() + self._generate_graph_constants() + self._generate_subgm_getattrs() + + with _set_node_metadata_hook( + self.gm, + functools.partial(_node_metadata_hook, fake_mode=V.fake_mode), + ): + self._generate_graph_input_shapes() + + # Generate FX IR from Wrapper IR lines. + for line in self.lines: + if isinstance(line, WrapperLine): + line.codegen_fx(self)(line) + elif isinstance(line, LineContext): + # Ignore line context in FX IR. + pass + else: + raise NotImplementedError( + textwrap.dedent( + f""" + Found line of unrecognized type '{type(line)}': + '{line}' + + FX conversion only supports Wrapper IR lines. + """ + ) + ) + + output = self._generate_outputs() + + self.gm.graph.output(output) + self.gm.recompile() + return self.gm + + def _sympy_interp(self, expr: sympy.Expr) -> torch.fx.Proxy: + # hash cons + if expr in self.expr_to_proxy: + return self.expr_to_proxy[expr] + # base cases, don't cache + if isinstance( + expr, + ( + sympy.Integer, + sympy.Number, + sympy.Symbol, + sympy.logic.boolalg.BooleanAtom, + ), + ): + return sympy_interp( + OptimizedPythonReferenceAnalysis, self.expr_to_proxy, expr + ) + + # hash cons on arguments, run expr handler + self.expr_to_proxy[expr] = _run_sympy_handler( + OptimizedPythonReferenceAnalysis, + [self._sympy_interp(arg) for arg in expr.args], + expr, + ) + return self.expr_to_proxy[expr] + + def _generate_sym_node( + self, s: Union[int, sympy.Expr] + ) -> Union[int, torch.fx.Node]: + if isinstance(s, (int, sympy.Integer)): + return int(s) + elif isinstance(s, sympy.Symbol): + assert s in self.expr_to_proxy, ( + f"Could not find a node corresponding to the symbol {s}" + ) + return self.expr_to_proxy[s].node + elif isinstance(s, sympy.Expr): + return self._sympy_interp(s).node + + elif isinstance(s, torch.fx.Node): + return s + + else: + raise ValueError(f"{s} of type {type(s)} is not a valid input") + + def _generate_sym_nodes( + self, shape: Sequence[sympy.Expr] + ) -> list[Union[int, torch.fx.Node]]: + return [self._generate_sym_node(s) for s in shape] + + def _generate_allocate(self, line: WrapperLine) -> None: + assert isinstance(line, AllocateLine) + buffer = line.node + name = buffer.get_name() + assert name not in V.graph.removed_buffers + + device = buffer.get_device() + assert device + dtype = buffer.get_dtype() + shape = self._generate_sym_nodes(buffer.get_size()) + stride = self._generate_sym_nodes(buffer.get_stride()) + + node = self.gm.graph.call_function( + torch.empty_strided, + args=(shape, stride), + kwargs={"dtype": dtype, "device": device.type}, + ) + assert name + node.name = name + self._record_allocation(buffer, node) + + def _generate_conditional(self, line: WrapperLine) -> None: + assert isinstance(line, ConditionalLine) + + def get_subgm_attr(subgraph: Optional[ir.Subgraph]) -> torch.fx.Node: + assert subgraph is not None + return self._get_subgm_attr(subgraph) + + # Access the subgraphs as getattrs. + ir_node = line.node + (true_subgm, false_subgm) = [ + get_subgm_attr(subgraph) + for subgraph in (ir_node.true_subgraph, ir_node.false_subgraph) + ] + + def generate_buffer(node: Optional[ir.IRNode]) -> Optional[torch.fx.Node]: + assert node is not None + return self._generate_buffer(node) + + predicate = generate_buffer(ir_node.predicate) + assert ir_node.operands is not None + operands = tuple(generate_buffer(arg) for arg in ir_node.operands) + fx_node = self.gm.graph.call_function( + torch.ops.higher_order.cond, + args=(predicate, true_subgm, false_subgm, operands), + ) + self._record_allocation(ir_node, fx_node) + + def _generate_comment(self, line: WrapperLine) -> None: + assert isinstance(line, CommentLine) + # We ignore comments in FX IR. + + def _generate_dynamic_scalar(self, line: WrapperLine) -> None: + assert isinstance(line, DynamicScalarLine) + + ir_node = line.node + (input_ir_node,) = ir_node.inputs + assert isinstance(input_ir_node, ir.IRNode) + input_fx_node = self._generate_buffer(input_ir_node) + keypath = ir_node.keypath + graph = self.gm.graph + + def generate_item(x: Optional[torch.fx.Node]) -> torch.fx.Node: + assert x is not None + return graph.call_function( + aten.item.default, + args=(x,), + ) + + if len(keypath) == 0: + result_fx_node = generate_item(input_fx_node) + elif len(keypath) == 1 and isinstance(keypath[0], ConvertIntKey): + where_fx_node = graph.call_function( + aten.where.Scalar, + args=(input_fx_node, 1, 0), + ) + result_fx_node = generate_item(where_fx_node) + else: + raise NotImplementedError(f"Unsupported keypath: {keypath}") + + result_symbol = ir_node.sym + result_buffer = SymbolBuffer(result_symbol) + self._record_allocation(result_buffer, result_fx_node) + self._generate_size_proxy(result_fx_node, result_symbol) + + def _generate_enter_device_context_manager(self, line: WrapperLine) -> None: + assert isinstance(line, EnterDeviceContextManagerLine) + # We ignore the device context in FX IR. + + def _generate_exit_device_context_manager(self, line: WrapperLine) -> None: + assert isinstance(line, ExitDeviceContextManagerLine) + # We ignore the device context in FX IR. + + def _generate_enter_subgraph(self, line: WrapperLine) -> None: + assert isinstance(line, EnterSubgraphLine) + # We ignore memory planning lines in FX IR. + + def _generate_exit_subgraph(self, line: WrapperLine) -> None: + assert isinstance(line, ExitSubgraphLine) + # We ignore memory planning lines in FX IR. + + def _generate_free(self, line: WrapperLine) -> None: + assert isinstance(line, FreeLine) + + buf = line.node + + # No need to free placeholders. + if self.buffer_to_node[buf.get_name()].op == "placeholder": + return + + self._free(buf) + + def _generate_free_if_not_reused(self, line: WrapperLine) -> None: + assert isinstance(line, FreeIfNotReusedLine) + buf = line.node + assert buf.get_name() not in V.graph.removed_buffers + if not line.is_reused: + self._free(buf) + + def _generate_line_context(self, line: WrapperLine) -> None: + assert isinstance(line, LineContext) + # We ignore line context in FX IR. + + def _generate_reinterpret(self, line: WrapperLine) -> None: + assert isinstance(line, ReinterpretLine) + self._generate_reinterpret_helper(line.node, line.reused_as, line.layout) + + def _generate_reinterpret_helper( + self, input_buffer: BufferLike, result_buffer: BufferLike, layout: ir.Layout + ) -> None: + input_node = self.buffer_to_node[input_buffer.get_name()] + + # Look up output metadata. + name = result_buffer.get_name() + assert name + size = tuple(layout.size) + stride = tuple(layout.stride) + if isinstance(layout, ir.NonOwningLayout): + # Look up the view's layout. + view = layout.view + assert isinstance(view, ir.ReinterpretView), ( + f"unexpected type: {type(view)}" + ) + layout = view.layout + offset = input_buffer.get_offset() + layout.offset + + # Map ReinterpretView to as_strided. + result_node = self._create_as_strided(input_node, size, stride, offset) + result_node.name = name + self._record_allocation(result_buffer, result_node) + + def _generate_reuse(self, line: WrapperLine) -> None: + assert isinstance(line, ReuseLine) + old = line.node + new = line.reused_as + assert not any(buf.get_name() in V.graph.removed_buffers for buf in (old, new)) + assert old.get_dtype() == new.get_dtype() + + old_node = self.buffer_to_node[old.get_name()] + result_node = old_node + + # Change shape and stride. + size = tuple(new.get_size()) + stride = tuple(new.get_stride()) + offset = new.get_offset() + if ( + tuple(old.get_size()) != size + or tuple(old.get_stride()) != stride + or old.get_offset() != offset + ): + result_node = self._create_as_strided(old_node, size, stride, offset) + + self._record_allocation(new, result_node) + + # Free the old buffer, if we allocated a new tensor. + if ( + old.get_name() not in V.graph.get_output_names() + and line.delete_old + and result_node is not old_node + ): + self._free(old) + + def _generate_multi_output(self, line: WrapperLine) -> None: + assert isinstance(line, MultiOutputLine) + + arg_node = self.buffer_to_node[line.arg_name] + + # For non-tuple / non-list outputs, map the + # output to the same node as the input. + if len(line.indices) == 0: + self.buffer_to_node[line.result_name] = arg_node + return + + # Extract the index for tuple access. + inds = line.indices[0][1:] + assert len(inds) == 1, f"Cannot convert {inds} to an index." + idx = inds[0] + + node = self.gm.graph.call_function(operator.getitem, args=(arg_node, idx)) + node.name = line.result_name + self.buffer_to_node[line.result_name] = node + + def _generate_fallback_call( + self, + ir_node: ir.ExternKernel, + args: Optional[tuple[Any, ...]] = None, + kwargs: Optional[dict[str, Any]] = None, + ) -> None: + fx_node = self.gm.graph.call_function( + ir_node.op_overload, # type: ignore[arg-type] + args=args, + kwargs=kwargs, + ) + result_buffer = ir_node.codegen_reference() + self.buffer_to_node[result_buffer] = fx_node + + def _generate_index_put_fallback(self, line: WrapperLine) -> None: + assert isinstance(line, IndexPutFallbackLine) + ir_node = line.node + + def generate_buffer_or_none( + x: Union[ir.IRNode, Sequence[ir.IRNode], None], + ) -> Optional[torch.fx.Node]: + """ + Handles None before calling _generate_buffer. + """ + if x is None: + return None + + assert isinstance(x, ir.IRNode) + return self._generate_buffer(x) + + (x, values) = [generate_buffer_or_none(t) for t in ir_node.inputs[:2]] + indices = tuple(generate_buffer_or_none(t) for t in line.indices) + accumulate = ir_node.constant_args[0] + args = (x, indices, values, accumulate) + self._generate_fallback_call(ir_node, args) + + def _generate_scatter_fallback(self, line: WrapperLine) -> None: + assert isinstance(line, ScatterFallbackLine) + ir_node = line.node + assert ir.is_node_sequence(ir_node.inputs) + (x, index, src) = [self._generate_buffer(t) for t in ir_node.inputs] + ( + [] if ir_node.src_is_tensor else [ir_node.constant_args[1]] + ) + args = (x, ir_node.constant_args[0], index, src) + kwargs = {} + if reduce := ir_node.kwargs.get("reduce"): + kwargs["reduce"] = reduce + + self._generate_fallback_call(ir_node, args, kwargs) + + def _generate_null(self, line: WrapperLine) -> None: + assert isinstance(line, NullLine) + # Does nothing. + + def _generate_comm_buffer_allocate(self, line: WrapperLine) -> None: + assert isinstance(line, CommBufferAllocateLine) + raise NotImplementedError("Comm buffer allocation is not yet supported") + + def _generate_comm_buffer_free(self, line: WrapperLine) -> None: + assert isinstance(line, CommBufferFreeLine) + self._free(line.node) + + def _generate_triton_call(self, line: WrapperLine) -> None: + assert isinstance(line, KernelCallLine) + + # Collect all kwargs, including autotuned block sizes. + call_args = self._lookup_args(line.call_args) + kernel = self.kernels[line.kernel_name] + tuner = kernel.tuner + + class UnbackedSymintsError(Exception): + pass + + def tune_kernel(tuner: CachingAutotuner, call_args: Sequence[Any]) -> None: + from triton.runtime import driver + + log.info("Autotuning Triton kernel %s at compile time.", kernel_name) + # pyrefly: ignore # missing-attribute + device = driver.active.get_current_device() + # pyrefly: ignore # missing-attribute + stream = driver.active.get_current_stream(device) + + def node_to_tuning_arg(arg: Any) -> Any: + """ + Create real tensors for autotuning arguments, substituting size hints + for dynamic shapes. + """ + + def to_size_hint(arg: Any) -> Any: + if len(free_unbacked_symbols(arg)) > 0: + # NYI: tuning args require backed symints. + raise UnbackedSymintsError + return pytree.tree_map(V.graph.sizevars.size_hint, arg) + + if not isinstance(arg, torch.fx.Node): + return to_size_hint(arg) + + fake = arg.meta["val"] + return torch.empty_strided( + to_size_hint(fake.shape), + to_size_hint(fake.stride()), + dtype=fake.dtype, + device=device, + ).zero_() + + arg_values = [node_to_tuning_arg(arg) for arg in call_args] + tuner.run(*arg_values, stream=stream) + + # Optionally autotune the kernels. + # The FX backend currently only supports compile-time tuning. + kernel_name = tuner.fn.__name__ + if config.triton.autotune_at_compile_time: + try: + tune_kernel(tuner, call_args) + except UnbackedSymintsError: + log.info( + "Detected unbacked symints. Skipping autotuning for kernel %s.", + kernel_name, + ) + else: + log.info( + "Skipping autotuning for kernel %s. Set config.triton.autotune_at_compile_time = True to enable.", + kernel_name, + ) + + triton_meta = tuner.triton_meta + signature = triton_meta["signature"] + + def add_constants_to_call_args( + call_args: Sequence[Any], cfg: Config + ) -> tuple[Any, ...]: + """ + Add constant kwargs to the arg list. + """ + # Add args from the proper Triton signature. + # Exclude constants and config kwargs, as those are tracked separately. + new_call_args = [] + constants = triton_meta["constants"] + call_kwargs = { + key: val + for key, val in zip(signature, call_args) + # pyrefly: ignore [missing-attribute] + if key not in constants and key not in cfg.kwargs + } + + # Add constants stored as Triton metadata, in signature order. + call_kwargs |= constants + new_call_args = [ + call_kwargs[key] + for key in signature + # pyrefly: ignore [missing-attribute] + if key not in cfg.kwargs + ] + + # Add Inductor's extra launcher args to the end. + if extra_launcher_args := tuner.inductor_meta.get("extra_launcher_args"): + new_call_args.extend( + call_args[len(call_args) - len(extra_launcher_args) :] + ) + + return tuple(new_call_args) + + kernel_config = tuner.compile_results[0].config + extra_options = getattr(kernel_config, "extra_options", None) + call_args = add_constants_to_call_args(call_args, kernel_config) + call_args, grid = tuner._interpret_args_grid(call_args, kernel_config) + call_kwargs = dict(zip(signature, call_args)) + # pyrefly: ignore [missing-attribute] + assert not any(kwarg in kernel_config.kwargs for kwarg in call_kwargs), ( + f"kwargs overlap config: {call_kwargs}" + ) + # pyrefly: ignore [missing-attribute] + call_kwargs.update(kernel_config.kwargs) + + # Replace sympy.floor with FloorDiv, to make the expression traceable. + grid = [replace_floor_div(x) if isinstance(x, sympy.Expr) else x for x in grid] + wrapper_grid = [tuple(self._generate_sym_nodes(grid))] + call_kwargs = { + name: self._generate_sym_node(val) for name, val in call_kwargs.items() + } + + # Store non-graphable kwargs in the side table. + ( + call_kwargs, + constant_args_idx, + ) = tracing_triton_hopifier_singleton.store_non_graphable_args(call_kwargs) + + triton_node = self.gm.graph.call_function( + triton_kernel_wrapper_mutation, + kwargs={ + "kernel_idx": kernel.wrapped.kernel_idx, + "constant_args_idx": constant_args_idx, + "grid": wrapper_grid, + "tma_descriptor_metadata": {}, + "kwargs": call_kwargs, + }, + ) + if extra_options: + triton_node.meta["extra_options"] = extra_options + + def _generate_extern_kernel_alloc(self, line: WrapperLine) -> None: + assert isinstance(line, ExternKernelAllocLine) + node = line.node + self._generate_extern_kernel_common(node, node) + + def _generate_extern_kernel_out( + self, + line: WrapperLine, + ) -> None: + assert isinstance(line, ExternKernelOutLine) + node = line.node + out_node = node.output_view if node.output_view else node + self._generate_extern_kernel_common(node, out_node) + + def _generate_extern_kernel_common( + self, kernel: ir.ExternKernel, out_ir_node: ir.IRNode + ) -> None: + """ + Generates FX IR from either ExternKernelAlloc or ExternKernelOut. + """ + + # Get FX nodes corresponding to the call args. + assert ir.is_node_sequence(kernel.inputs) + tensor_nodes = tuple(self._generate_buffer(arg) for arg in kernel.inputs) + if hasattr(kernel, "unflatten_args"): + args, _ = kernel.unflatten_args(tensor_nodes, kernel.constant_args) + else: + args = tensor_nodes + tuple(kernel.constant_args) + + # Get the result buffer. + # Some kernels write to a pre-existing output tensor via the "out" kwarg. + kwargs = kernel.kwargs.copy() + + result_buffer: Optional[str] = None + if isinstance(kernel, ir.ExternKernelOut): + kwargs["out"] = self.buffer_to_node[out_ir_node.codegen_reference()] + elif isinstance(kernel.layout, (ir.Layout, ir.MultiOutputLayout)): + result_buffer = kernel.get_name() + elif isinstance(kernel.layout, ir.NoneLayout): + pass + else: + raise NotImplementedError(f"Unrecognized output layout: {kernel.layout}") + + fx_node = self.gm.graph.call_function( + kernel.op_overload, # type: ignore[arg-type] + args=args, + kwargs=kwargs, + ) + + # Assign the result to the given name. + if result_buffer: + assert "out" not in kwargs, ( + f"Extern kernel '{kernel}' has both result and out kwarg. Expected only one." + ) + fx_node.name = result_buffer + self.buffer_to_node[result_buffer] = fx_node + + def _generate_kernel_call(self, line: WrapperLine) -> None: + assert isinstance(line, KernelCallLine) + if not line.triton: + raise NotImplementedError("FX conversion only supports Triton kernels.") + + self._generate_triton_call(line) + + def _generate_kernel_definition(self, line: WrapperLine) -> None: + assert isinstance(line, KernelDefinitionLine) + + # Generate code for the kernel. + kernel_code = PythonWrapperCodegen._format_kernel_definition( + line.kernel_name, line.kernel_body, metadata=line.metadata + ) + + # Import the module and store the JIT kernel. + tuner = self._import_kernel(kernel_code, line.kernel_name) + wrapped = wrap_triton(tuner.fn) + self.kernels[line.kernel_name] = TritonKernel(tuner, wrapped) + + def _generate_symbolic_call_arg(self, line: WrapperLine) -> None: + assert isinstance(line, SymbolicCallArgLine) + # Store the arg: expr mapping for later use. + arg = line.arg + + inner_expr_proxy = self._sympy_interp(arg.inner_expr) + self.expr_to_proxy[arg.inner] = inner_expr_proxy + + def _generate_unbacked_symbol_defs(self, line: WrapperLine) -> None: + assert isinstance(line, UnbackedSymbolDefsLine) + graph = self.gm.graph + + def convert_key(node: torch.fx.Node, path: pytree.KeyPath) -> torch.fx.Node: + """ + Generate FX IR for each key entry. + """ + # Base case. + if len(path) == 0: + return node + + # Process the first entry and recurse. + entry = path[0] + if isinstance(entry, CallMethodKey): + target = { + "size": aten.sym_size.int, + "stride": aten.sym_stride.int, + "storage_offset": aten.sym_storage_offset, + }[entry.name] + assert callable(target) + node = graph.call_function( + target, + args=( + (node, path[1].idx) + if len(path) > 1 and isinstance(path[1], pytree.SequenceKey) + else (node,) + ), + ) + return convert_key(node, path[1 + len(node.args) :]) + elif isinstance(entry, pytree.SequenceKey): + node = graph.call_function(operator.getitem, args=(node, entry.idx)) + return convert_key(node, path[1:]) + elif isinstance(entry, DivideByKey): + node = graph.call_function( + operator.floordiv, args=(node, entry.divisor) + ) + return convert_key(node, path[1:]) + else: + raise NotImplementedError(f"Unrecognized entry type: {type(entry)}") + + root_node = self.buffer_to_node[line.output_name] + unbacked_bindings = line.unbacked_bindings + assert unbacked_bindings is not None + for s, keypath in unbacked_bindings.items(): + # Check if we already generated this symbol. + if s.name in self.buffer_to_node: + continue + + node = convert_key(root_node, keypath) + out_buffer = SymbolBuffer(s) + self._record_allocation(out_buffer, node) + self._generate_size_proxy(node, s) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/xpu/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/xpu/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/xpu/device_op_overrides.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/xpu/device_op_overrides.py new file mode 100644 index 0000000000000000000000000000000000000000..5d538ec20ca215b1dc5da23171a06999026c0eae --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/codegen/xpu/device_op_overrides.py @@ -0,0 +1,67 @@ +from __future__ import annotations + +from typing import Optional + +from ..common import ( + DeviceOpOverrides, + register_device_op_overrides, + TritonScratchWorkspace, +) + + +class XPUDeviceOpOverrides(DeviceOpOverrides): + def import_get_raw_stream_as(self, name: str) -> str: + return f"from torch._C import _xpu_getCurrentRawStream as {name}" + + def set_device(self, device_idx: int) -> str: + return f"torch.xpu.set_device({device_idx})" + + def synchronize(self) -> str: + return "torch.xpu.synchronize()" + + def device_guard(self, device_idx: int) -> str: + return f"torch.xpu._DeviceGuard({device_idx})" + + def cpp_device_guard(self) -> str: + return "at::DeviceGuard" + + def cpp_aoti_device_guard(self) -> str: + return "AOTIXpuGuard" + + def cpp_stream_guard(self) -> str: + return "at::xpu::XPUStreamGuard" + + def cpp_aoti_stream_guard(self) -> str: + return "AOTIXpuStreamGuard" + + def cpp_getStreamFromExternal(self) -> str: + return "at::xpu::getStreamFromExternal" + + def kernel_header(self) -> str: + source_codes = """ + #include + """ + return source_codes + + def kernel_driver(self) -> str: + return "" + + def cpp_stream_type(self) -> str: + return "sycl::queue*" + + def aoti_get_stream(self) -> str: + return "aoti_torch_get_current_xpu_stream" + + def cpp_kernel_type(self) -> str: + return "std::unique_ptr" + + def cpp_device_ptr(self) -> str: + return "void *" + + def cpp_scratch( + self, idx: int, workspace: TritonScratchWorkspace, prefix: Optional[str] = None + ) -> Optional[tuple[list[str], str]]: + return [f"void *global_scratch_{idx} = 0;"], f"global_scratch_{idx}" + + +register_device_op_overrides("xpu", XPUDeviceOpOverrides()) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/__main__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/__main__.py new file mode 100644 index 0000000000000000000000000000000000000000..6ca0f1e5a4fb2a6aeb1224285d76e78a05a0f499 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/__main__.py @@ -0,0 +1,80 @@ +# mypy: allow-untyped-defs +import argparse +import base64 +import functools +import importlib +import logging +import os +import sys +from typing import TypeVar + +from torch._inductor.async_compile import pre_fork_setup +from torch._inductor.codecache import torch_key +from torch._inductor.compile_worker.subproc_pool import ( + SubprocKind, + SubprocMain, + SubprocPickler, +) +from torch._inductor.compile_worker.utils import _async_compile_initializer +from torch._inductor.runtime.compile_tasks import _set_triton_ptxas_path + + +_T = TypeVar("_T") + + +log = logging.getLogger(__name__) + +_set_triton_ptxas_path() + +try: + import triton + + assert triton is not None # preload in parent +except ImportError: + pass + + +def _lookup_and_create_type(base: type[_T], qname: str) -> _T: + """ + Given a base type and qualified name: import & lookup that name, check + that it's of the given type and then instantiate it. + """ + pkg, name = qname.rsplit(".", 1) + mod = importlib.import_module(pkg) + ty = getattr(mod, name) + if not issubclass(ty, base): + raise TypeError(f"Type {ty} is not a subtype of {base}") + return ty() + + +def main(): + try: + parser = argparse.ArgumentParser() + parser.add_argument( + "--pickler", type=functools.partial(_lookup_and_create_type, SubprocPickler) + ) + parser.add_argument("--kind", type=SubprocKind) + parser.add_argument("--workers", type=int) + parser.add_argument("--parent", type=int) + parser.add_argument("--read-fd", type=int) + parser.add_argument("--write-fd", type=int) + parser.add_argument("--torch-key", type=str) + args = parser.parse_args() + if os.getppid() != args.parent: + sys.exit(0) + read_fd = os.fdopen(args.read_fd, "rb") + write_fd = os.fdopen(args.write_fd, "wb") + + pre_fork_setup() + + torch_key.set(base64.b64decode(args.torch_key.encode("utf-8"))) # type: ignore[attr-defined] + + _async_compile_initializer(args.parent) + + SubprocMain(args.pickler, args.kind, args.workers, read_fd, write_fd).main() + except Exception: + log.exception("Uncaught exception in compile_worker subprocess") + + +if __name__ == "__main__": + main() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/subproc_pool.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/subproc_pool.py new file mode 100644 index 0000000000000000000000000000000000000000..07c59b8cbb860fd1ed0e1ff1ba6df34979abdf4f --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/subproc_pool.py @@ -0,0 +1,496 @@ +import base64 +import functools +import itertools +import logging +import multiprocessing +import os +import pickle +import struct +import subprocess +import sys +import threading +import traceback +import typing +from collections.abc import Callable +from concurrent.futures import Future, ProcessPoolExecutor +from concurrent.futures.process import BrokenProcessPool +from enum import Enum, IntEnum +from typing import Any, IO, Optional, TypeVar +from typing_extensions import Never, ParamSpec + +# _thread_safe_fork is needed because the subprocesses in the pool can read +# justknobs, e.g., in the Triton compiler. For internal, the import installs +# functionality to destroy singletons before forking and re-enable them after. +import torch._thread_safe_fork # noqa: F401 +from torch._inductor import config +from torch._inductor.codecache import torch_key +from torch._inductor.compile_worker.timer import Timer +from torch._inductor.compile_worker.tracked_process_pool import ( + TrackedProcessPoolExecutor, +) +from torch._inductor.compile_worker.utils import _async_compile_initializer +from torch._inductor.utils import get_ld_library_path, python_subprocess_env +from torch._utils_internal import find_compile_subproc_binary +from torch.monitor import _WaitCounter, _WaitCounterTracker + + +log = logging.getLogger(__name__) + +_P = ParamSpec("_P") +_T = TypeVar("_T") + + +class MsgHeader(IntEnum): + ERROR = 0 + SHUTDOWN = 1 + QUIESCE = 2 + WAKEUP = 3 + JOB = 4 + + +def _pack_msg(msg_header: MsgHeader, job_id: int, length: int) -> bytes: + return struct.pack("nnn", int(msg_header), job_id, length) + + +def _unpack_msg(data: bytes) -> tuple[MsgHeader, int, int]: + if not data: + return MsgHeader.ERROR, -1, -1 + msg_header, job_id, length = struct.unpack("nnn", data) + return MsgHeader(msg_header), job_id, length + + +msg_bytes = len(_pack_msg(MsgHeader.JOB, 0, 0)) + + +def _send_msg( + write_pipe: IO[bytes], msg_header: MsgHeader, job_id: int = -1, data: bytes = b"" +) -> None: + length = len(data) + write_pipe.write(_pack_msg(msg_header, job_id, length)) + if length > 0: + write_pipe.write(data) + write_pipe.flush() + + +def _recv_msg(read_pipe: IO[bytes]) -> tuple[MsgHeader, int, bytes]: + msg_header, job_id, length = _unpack_msg(read_pipe.read(msg_bytes)) + data = read_pipe.read(length) if length > 0 else b"" + return msg_header, job_id, data + + +class _SubprocExceptionInfo: + """ + Carries exception info from subprocesses across the wire. traceback + objects are not pickleable, so we store the trace as a string and + use it for the message in the exception thrown in the main process. + """ + + def __init__(self, details: str) -> None: + self.details = details + + +class SubprocException(Exception): + """ + Thrown when a job in a subprocess raises an Exception. + """ + + def __init__(self, details: str, name: str = "") -> None: + self.details = details + super().__init__( + f"An exception occurred in a subprocess:\n\nName={name}\n{details}" + ) + + def with_name(self, name: str) -> "SubprocException": + return SubprocException(self.details, name) + + +class SubprocPickler: + """ + Allows a caller to provide a custom pickler for passing data with the + subprocess. + """ + + def dumps(self, obj: object) -> bytes: + return pickle.dumps(obj, pickle.HIGHEST_PROTOCOL) + + def loads(self, data: bytes) -> object: + return pickle.loads(data) + + +class SubprocKind(Enum): + FORK = "fork" + SPAWN = "spawn" + + +class SubprocPool: + """ + Mimic a concurrent.futures.ProcessPoolExecutor, but wrap it in + a subprocess.Popen() to try to avoid issues with forking/spawning + """ + + def __init__( + self, + nprocs: int, + pickler: Optional[SubprocPickler] = None, + kind: SubprocKind = SubprocKind.FORK, + quiesce: bool = False, + ) -> None: + entry = os.path.join(os.path.dirname(__file__), "__main__.py") + self.pickler = pickler or SubprocPickler() + self.kind = kind + + subproc_read_fd, write_fd = os.pipe() + read_fd, subproc_write_fd = os.pipe() + self.write_pipe = os.fdopen(write_fd, "wb") + self.read_pipe = os.fdopen(read_fd, "rb") + torch_key_str = base64.b64encode(torch_key()).decode("utf-8") + + cmd = [ + sys.executable, + entry, + ] + if (binary := find_compile_subproc_binary()) is not None: + cmd = [binary] + + args = [ + f"--pickler={self.pickler.__class__.__module__}.{self.pickler.__class__.__name__}", + f"--kind={self.kind.value}", + f"--workers={nprocs}", + f"--parent={os.getpid()}", + f"--read-fd={str(subproc_read_fd)}", + f"--write-fd={str(subproc_write_fd)}", + f"--torch-key={torch_key_str}", + ] + cmd.extend(args) + log_path = None + self.log_file = None + + if config.worker_suppress_logging: + log_path = os.devnull + log.info("Suppressing compile worker output due to config") + else: + log_path = config.torchinductor_worker_logpath + if not log_path: + log_path = config.get_worker_log_path() + + if log_path: + # pyrefly: ignore [bad-assignment] + self.log_file = open(log_path, "w") # noqa:SIM115 + + self.process = subprocess.Popen( + cmd, + env={ + **python_subprocess_env(), + # Safeguard against creating a SubprocPool in the subprocess. + "TORCH_WARM_POOL": "0", + # Some internal usages need a modified LD_LIBRARY_PATH. + "LD_LIBRARY_PATH": get_ld_library_path(), + }, + pass_fds=(subproc_read_fd, subproc_write_fd), + stdout=self.log_file, + stderr=self.log_file, + ) + self.write_lock = threading.Lock() + self.read_thread = threading.Thread( + target=self._read_thread, name="InductorSubproc", daemon=True + ) + + self.futures_lock = threading.Lock() + self.pending_futures: dict[int, Future[Any]] = {} + # The pending waitcounter, is used to indicate the time when we have any specific job running. + self.pending_waitcounters: dict[int, Any] = {} + self.job_id_count = itertools.count() + + # The running waitcounter indicates the time when the SubProcPool object exists. + self.running = True + self.running_waitcounter = _WaitCounter( + "pytorch.wait_counter.subproc_pool.running" + ).guard() + self.running_waitcounter.__enter__() + + # The quiesce waitcounter indicates when the job is in a quiesced state. + self.quiesce_waitcounter: Optional[_WaitCounterTracker] = None + + # Firstjob is used to capture the time from when the firstjob is queued, to when the first job is done. + self.firstjob = True + self.firstjob_id: Optional[int] = None + self.firstjob_waitcounter = _WaitCounter( + "pytorch.wait_counter.subproc_pool.first_job" + ).guard() + + if quiesce: + self.timer: Optional[Timer] = Timer( + config.quiesce_async_compile_time, self.quiesce + ) + else: + self.timer = None + + # Start thread last to ensure all member variables are initialized + # before any access. + self.read_thread.start() + + def submit( + self, job_fn: Callable[_P, _T], *args: _P.args, **kwargs: _P.kwargs + ) -> Future[_T]: + if args or kwargs: + # pyrefly: ignore [bad-assignment] + job_fn = functools.partial(job_fn, *args, **kwargs) + job_data = self.pickler.dumps(job_fn) + future: Future[_T] + with self.futures_lock: + job_id = next(self.job_id_count) + self.pending_futures[job_id] = future = Future() + self.pending_waitcounters[job_id] = _WaitCounter( + "pytorch.wait_counter.subproc_pool.job" + ).guard() + self.pending_waitcounters[job_id].__enter__() + if self.quiesce_waitcounter: + self.firstjob = True + self.quiesce_waitcounter.__exit__() + self.quiesce_waitcounter = None + # This can be entered from either quiesce wakeup, or from startup. + if self.firstjob: + self.firstjob_id = job_id + self.firstjob_waitcounter.__enter__() + self.firstjob = False + future.set_running_or_notify_cancel() + self._send(MsgHeader.JOB, job_id, job_data) + return future + + def _send(self, msg_header: MsgHeader, job_id: int = -1, data: bytes = b"") -> None: + with self.write_lock: + if not self.running: + raise RuntimeError("Attempting to use a closed pool") + _send_msg(self.write_pipe, msg_header, job_id, data) + + def _read_thread(self) -> None: + while True: + data = b"" + job_id = -1 + try: + msg_header, job_id, data = _recv_msg(self.read_pipe) + except Exception: + # Something went wrong during the read. There's no way we have a + # valid msg. + log.exception("failure in subproc_pool._recv_msg") + msg_header = MsgHeader.ERROR + + if msg_header != MsgHeader.JOB: + # read_pipe returned None or got exception + if self.running: + log.warning("SubprocPool unclean exit") + self.running = False + self.running_waitcounter.__exit__() + self.read_pipe.close() + # Cancel all the pending futures. + self.shutdown() + return + + try: + result = self.pickler.loads(data) + except Exception as e: + # Something went wrong unpickling. We have a job_id so just + # notify that particular future and continue on. + log.exception("unpickle failure in SubprocPool._read_thread") + result = e + + with self.futures_lock: + if not self.running: + return + if self.timer: + self.timer.record_call() + if isinstance(result, _SubprocExceptionInfo): + # An exception occurred in the submitted job + self.pending_futures[job_id].set_exception( + SubprocException(result.details) + ) + elif isinstance(result, Exception): + # An exception occurred in some of our subprocess machinery. + self.pending_futures[job_id].set_exception(result) + else: + self.pending_futures[job_id].set_result(result) + + self.pending_waitcounters[job_id].__exit__() + del self.pending_waitcounters[job_id] + if self.firstjob_id == job_id: + self.firstjob_waitcounter.__exit__() + + del self.pending_futures[job_id] + + def quiesce(self) -> None: + self._send(MsgHeader.QUIESCE) + if self.quiesce_waitcounter is None: + self.quiesce_waitcounter = _WaitCounter( + "pytorch.wait_counter.subproc_pool.quiesced" + ).guard() + self.quiesce_waitcounter.__enter__() + + def wakeup(self) -> None: + self._send(MsgHeader.WAKEUP) + + def shutdown(self) -> None: + try: + with self.write_lock: + if not self.running: + return + if self.timer: + self.timer.quit() + self.running = False + self.running_waitcounter.__exit__() + _send_msg(self.write_pipe, MsgHeader.SHUTDOWN) + self.write_pipe.close() + self.process.wait(300) + if self.log_file: + self.log_file.close() + except OSError: + log.warning("Ignored OSError in pool shutdown", exc_info=True) + finally: + with self.futures_lock: + for future in self.pending_futures.values(): + if not future.cancel(): + future.set_exception(RuntimeError("SubprocPool closed")) + self.pending_futures.clear() + + +class SubprocMain: + """Communicates with a SubprocPool in the parent process, called by __main__.py""" + + def __init__( + self, + pickler: SubprocPickler, + kind: SubprocKind, + nprocs: int, + read_pipe: IO[bytes], + write_pipe: IO[bytes], + ) -> None: + self.pickler = pickler + self.kind = kind + self.read_pipe = read_pipe + self.write_pipe = write_pipe + self.write_lock = threading.Lock() + self.nprocs = nprocs + self.pool: Optional[ProcessPoolExecutor] = None + self.running = True + + def main(self) -> None: + while True: + msg_header, job_id, data = _recv_msg(self.read_pipe) + if msg_header == MsgHeader.JOB: + self.submit(job_id, data) + elif msg_header == MsgHeader.WAKEUP: + self._start_pool() + elif msg_header == MsgHeader.QUIESCE: + self._quiesce() + else: + return self._shutdown() + + def _quiesce(self) -> None: + if self.pool is not None: + self.pool.shutdown(wait=False) + self.pool = None + + def _shutdown(self) -> None: + with self.write_lock: + self.running = False + try: + _send_msg(self.write_pipe, MsgHeader.SHUTDOWN) + self.write_pipe.close() + except BrokenPipeError: + pass # parent process already shutdown + self.read_pipe.close() + self._quiesce() + + def submit(self, job_id: int, data: bytes) -> None: + while self.running: + try: + self._submit_inner(job_id, data) + return + except BrokenProcessPool: + # If any subprocess in the pool crashes, we get a BrokenProcessPool + # exception and the whole pool becomes unusable. Handle crashes by + # recreating the pool and resubmitting. + self.pool = None + + def _submit_inner(self, job_id: int, data: bytes) -> None: + def callback(fut: Future[Any]) -> None: + if not self.running: + return + try: + result = fut.result() + except Exception as e: + log.exception("Error in subprocess") + result = self.pickler.dumps(e) + assert isinstance(result, bytes) + with self.write_lock: + if self.running: + _send_msg(self.write_pipe, MsgHeader.JOB, job_id, result) + return + + self._start_pool() + assert self.pool is not None + + future = self.pool.submit( + functools.partial(SubprocMain.do_job, self.pickler, data) + ) + future.add_done_callback(callback) + + def _start_pool(self) -> None: + if self.pool is not None: + return + + self.pool = TrackedProcessPoolExecutor( + self.nprocs, + mp_context=multiprocessing.get_context(self.kind.value), + initializer=functools.partial(_async_compile_initializer, os.getpid()), + ) + multiprocessing.util.Finalize( + None, self.pool.shutdown, exitpriority=sys.maxsize + ) + _warm_process_pool(self.pool, self.nprocs) + + @staticmethod + def do_job(pickler: SubprocPickler, data: bytes) -> bytes: + # do the pickle/unpickle in the sub-subproc + job = typing.cast(Callable[[], object], pickler.loads(data)) + + try: + result = job() + except Exception: + result = _SubprocExceptionInfo(traceback.format_exc()) + return pickler.dumps(result) + + +AnyPool = typing.Union[ProcessPoolExecutor, SubprocPool] + + +def _warm_process_pool(pool: ProcessPoolExecutor, n: int) -> None: + # We have to fork processes for compiler workers, but the more memory and other resources that are loaded, the + # slower the os.fork time is, quite drastically. It also holds the GIL so we can't put it on another thread. + + # Examples: + # A simple x + x + x script: 10ms seconds in the middle of the program, 2ms at startup + # tf_efficientnet_b0 benchmark: 50ms! in the middle of the program , 3ms at startup + + # So we want to start the workers early when it is still cheap, and also to allow the workers to get + # ready before we have work for them. + + # ProcessPoolExecutor also does not launch the workers until it finds a point when all the workers are idle. + # But if we waited until then fork time will be long and we will be waiting for the processes to initialize. + + # We force them to start here with some YOLOing of the internal methods. + + if hasattr(pool, "_start_queue_management_thread"): + pool._start_queue_management_thread() + else: + for _ in range(n): + pool._adjust_process_count() + if hasattr(pool, "_start_executor_manager_thread"): + pool._start_executor_manager_thread() + + +class TestException(RuntimeError): + pass + + +def raise_testexc() -> Never: + raise TestException diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/timer.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/timer.py new file mode 100644 index 0000000000000000000000000000000000000000..7c495403b3a55ef8858bd6661607d7bcf25674e8 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/timer.py @@ -0,0 +1,55 @@ +from collections.abc import Callable +from threading import Lock, Thread +from time import monotonic, sleep +from typing import Optional, Union + + +class Timer: + """ + This measures how long we have gone since last receiving an event and if it is greater than a set interval, calls a function. + """ + + def __init__( + self, + duration: Union[int, float], # Duration in seconds + call: Callable[[], None], # Function to call when we expire + ) -> None: + # We don't start the background thread until we actually get an event. + self.background_thread: Optional[Thread] = None + self.last_called: Optional[float] = None + self.duration = duration + self.sleep_time = duration / 2 + self.call = call + self.exit = False + + self.lock = Lock() + + def record_call(self) -> None: + with self.lock: + if self.background_thread is None: + self.background_thread = Thread( + target=self.check, daemon=True, name="subproc_worker_timer" + ) + self.background_thread.start() + self.last_called = monotonic() + + def quit(self) -> None: + with self.lock: + self.exit = True + + def check(self) -> None: + while True: + # We have to be sensitive on checking here, to avoid too much impact on cpu + sleep(self.sleep_time) + with self.lock: + if self.exit: + return + assert self.last_called is not None + if self.last_called + self.duration >= monotonic(): + continue + self.last_called = None + self.background_thread = None + + # Releasing lock in case self.call() takes a very long time or is reentrant + self.call() + return diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/tracked_process_pool.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/tracked_process_pool.py new file mode 100644 index 0000000000000000000000000000000000000000..546a5cbc6395a104cede30dd94054cfb12193a1b --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/tracked_process_pool.py @@ -0,0 +1,113 @@ +import atexit +import concurrent +import dataclasses +import logging +import threading +from collections.abc import Callable +from concurrent.futures import Future, ProcessPoolExecutor +from dataclasses import dataclass +from multiprocessing.context import BaseContext +from time import time +from typing import Any, Optional, TypeVar +from typing_extensions import ParamSpec + +# _thread_safe_fork is needed because the subprocesses in the pool can read +# justknobs, e.g., in the Triton compiler. For internal, the import installs +# functionality to destroy singletons before forking and re-enable them after. +import torch._thread_safe_fork # noqa: F401 + + +_P = ParamSpec("_P") +_R = TypeVar("_R") + + +log = logging.getLogger(__name__) + + +@dataclass +class _QueueStats: + # Mapping from id(future) -> start time + pending: dict[int, float] = dataclasses.field(default_factory=dict) + timing: list[float] = dataclasses.field(default_factory=list) + enqueue_count: int = 0 + dequeue_count: int = 0 + max_queue_depth: int = 0 + pool_count: int = 0 + + +# The queue statistics tracked by TrackedProcessPoolExecutor. Always grab +# _queue_stats_lock before touching. +_queue_stats = _QueueStats() +_queue_stats_lock = threading.Lock() + + +class TrackedProcessPoolExecutor(ProcessPoolExecutor): + def __init__( + self, + max_workers: Optional[int] = None, + mp_context: Optional[BaseContext] = None, + initializer: Optional[Callable[[], object]] = None, + ) -> None: + with _queue_stats_lock: + _queue_stats.pool_count += 1 + super().__init__(max_workers, mp_context, initializer) + + def _record_dequeue(self, f: Future[Any]) -> None: + now = time() + with _queue_stats_lock: + stats = _queue_stats + if (start_time := stats.pending.pop(id(f), None)) is None: + return + stats.dequeue_count += 1 + duration = now - start_time + stats.timing.append(duration) + + def _record_enqueue(self, f: Future[Any]) -> None: + # Monkeypatch the set_running_or_notify_cancel so we can track when the Future moves out of PENDING. + saved_running_or_notify_cancel = f.set_running_or_notify_cancel + + def set_running_or_notify_cancel() -> Any: + self._record_dequeue(f) + return saved_running_or_notify_cancel() + + now = time() + with _queue_stats_lock: + stats = _queue_stats + stats.pending[id(f)] = now + stats.enqueue_count += 1 + stats.max_queue_depth = max(stats.max_queue_depth, len(stats.pending)) + f.set_running_or_notify_cancel = set_running_or_notify_cancel # type: ignore[method-assign] + + if f._state != concurrent.futures._base.PENDING: + self._record_dequeue(f) + + def submit( + self, fn: Callable[_P, _R], /, *args: _P.args, **kwargs: _P.kwargs + ) -> Future[_R]: + # pyrefly: ignore [bad-argument-type] + f = super().submit(fn, *args, **kwargs) + self._record_enqueue(f) + return f + + +@atexit.register +def _queue_stats_report() -> None: + stats = _queue_stats + if stats.pool_count == 0: + return + + timing = stats.timing + timing.sort() + + log.info("AsyncCompile Metrics:") + log.info(" Pools %s", stats.pool_count) + log.info( + " Items %d enqueued / %d dequeued", stats.enqueue_count, stats.dequeue_count + ) + log.info(" Max Queue Depth: %d", stats.max_queue_depth) + n = len(timing) + if n > 0: + log.info(" Longest queue time: %0.2fs", timing[-1]) + log.info(" P50: %0.2fs", timing[n // 2]) + if n >= 20: + log.info(" P95: %0.2fs", timing[n * 95 // 100]) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/utils.py new file mode 100644 index 0000000000000000000000000000000000000000..b4b5e21630c270ada0f45a1f3ff318620fa2deba --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/compile_worker/utils.py @@ -0,0 +1,54 @@ +import os +import signal +from threading import Thread +from time import sleep +from typing import Optional + + +_IN_TOPLEVEL_PROCESS = True + + +def in_toplevel_process() -> bool: + global _IN_TOPLEVEL_PROCESS + return _IN_TOPLEVEL_PROCESS + + +# If this process dies abnormally (e.g. segfault) +# it will not shut down the workers. Instead, +# the workers will have their parent reassigned to the +# init process. This launches a separate thread to +# watch for the worker getting reassigned, +# and cleans it up in this case. +# +# This function cannot be an inner function since otherwise mp_context="spawn" would +# not work for ProcessPoolExecutor since inner functions cannot be pickled. +def _async_compile_initializer(orig_ppid: int) -> None: + import torch._C + + def run() -> None: + while True: + sleep(60) + if orig_ppid != os.getppid(): + os.kill(os.getpid(), signal.SIGKILL) + + global _watchdog_thread, _original_parent + _original_parent = orig_ppid + _watchdog_thread = Thread(target=run, daemon=True) + _watchdog_thread.start() + # Ignore Ctrl-C (i.e. SIGINT) sent to pool workers to avoid meaningless log spam. + signal.signal(signal.SIGINT, signal.SIG_IGN) + + # Install a crash handler to print out the stacktrace for SEGV + torch._C._initCrashHandler() + + # Set a bit to distinguish async_compile subprocesses from the toplevel process. + global _IN_TOPLEVEL_PROCESS + _IN_TOPLEVEL_PROCESS = False + + +_watchdog_thread: Optional[Thread] = None +_original_parent: Optional[int] = None + + +def has_parent_changed() -> bool: + return _original_parent != os.getppid() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/b2b_gemm.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/b2b_gemm.py new file mode 100644 index 0000000000000000000000000000000000000000..5a8dc65c08ec457c1cb87354a7a95afb4d15203d --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/b2b_gemm.py @@ -0,0 +1,774 @@ +# mypy: allow-untyped-defs +import functools +from collections import deque + +import torch +from torch.utils._ordered_set import OrderedSet +from torch.utils._pytree import tree_map + +from ..._dynamo.utils import counters +from ..ir import ( + ComputedBuffer, + FixedLayout, + FlexibleLayout, + InputBuffer, + ShapeAsConstantBuffer, + StorageBox, + Subgraph, + TensorBox, +) +from ..lowering import lowerings +from ..pattern_matcher import ( + Arg, + CallFunction, + Match, + PatternMatcherPass, + register_graph_pattern, +) +from ..select_algorithm import ( + autotune_select_algorithm, + ExternKernelChoice, + SymbolicGridFn, + TritonTemplate, + TritonTemplateCaller, +) +from ..utils import ceildiv + + +B2B_GEMM_PASS = PatternMatcherPass( + pass_name="b2b_gemm_pass", +) + + +@SymbolicGridFn +def b2b_gemm_grid(M, P, meta, *, cdiv): + return (cdiv(M, meta["BLOCK_SIZE_M"]) * cdiv(P, meta["BLOCK_SIZE_P"]), 1, 1) + + +b2b_gemm_left_template = TritonTemplate( + name="b2b_gemm_left", + grid=b2b_gemm_grid, + debug=False, + source=r""" +{{def_kernel("A", "B", "C")}} + + + # B2B_GEMM_LEFT_TRITON_ENTRANCE + + # dynamic shapes + M = {{size("A", 0)}} + N = {{size("A", 1)}} + O = {{size("C", 0)}} + P = {{size("C", 1)}} + + # dynamic strides + stride_am = {{stride("A", 0)}} + stride_an = {{stride("A", 1)}} + stride_bn = {{stride("B", 0)}} + stride_bo = {{stride("B", 1)}} + stride_co = {{stride("C", 0)}} + stride_cp = {{stride("C", 1)}} + + # output block counts + num_m_block = tl.cdiv(M, BLOCK_SIZE_M) + num_p_block = tl.cdiv(P, BLOCK_SIZE_P) + + # internal block counts + num_n_block = tl.cdiv(N, BLOCK_SIZE_N) + num_o_block = tl.cdiv(O, BLOCK_SIZE_O) + + # output block ids + pid = tl.program_id(axis=0) + m_block_id = pid // num_p_block + p_block_id = pid % num_p_block + + # accumulator + acc = tl.zeros((BLOCK_SIZE_M, BLOCK_SIZE_P), dtype=tl.float32) + + # main loop + offs_m = (m_block_id * BLOCK_SIZE_M + tl.arange(0, BLOCK_SIZE_M)) + offs_p = (p_block_id * BLOCK_SIZE_P + tl.arange(0, BLOCK_SIZE_P)) + # (subgraph(A @ B) @ C) + offs_o = tl.arange(0, BLOCK_SIZE_O) + for _ in range(num_o_block): + c_mask = (offs_o[:, None] < O) & (offs_p[None, :] < P) + c_ptrs = C + (offs_o[:, None] * stride_co + offs_p[None, :] * stride_cp) + c = tl.load(c_ptrs, mask=c_mask, other=0.0).to(tl.float32) # BLOCK_SIZE_O * BLOCK_SIZE_P + acc_ab = tl.zeros((BLOCK_SIZE_M, BLOCK_SIZE_O), dtype=tl.float32) + offs_n = tl.arange(0, BLOCK_SIZE_N) + for __ in range(num_n_block): + a_mask = (offs_m[:, None] < M) & (offs_n[None, :] < N) + a_ptrs = A + (offs_m[:, None] * stride_am + offs_n[None, :] * stride_an) + a = tl.load(a_ptrs, mask=a_mask, other=0.0).to(tl.float32) # BLOCK_SIZE_M * BLOCK_SIZE_N + b_mask = (offs_n[:, None] < N) & (offs_o[None, :] < O) + b_ptrs = B + (offs_n[:, None] * stride_bn + offs_o[None, :] * stride_bo) + b = tl.load(b_ptrs, mask=b_mask, other=0.0).to(tl.float32) # BLOCK_SIZE_N * BLOCK_SIZE_O + acc_ab += tl.dot(a, b, out_dtype=tl.float32) + offs_n += BLOCK_SIZE_N + # apply the subgraph + {{ modification( + subgraph_number=0, + output_name="post_subgraph_acc_ab", + inner_mm="acc_ab" + ) | indent_except_first(2) }} + acc += tl.dot(post_subgraph_acc_ab, c, out_dtype=tl.float32) + offs_o += BLOCK_SIZE_O + + # type conversion + acc = acc.to(tl.float16) + + # store preparation + idx_m = offs_m[:, None] + idx_p = offs_p[None, :] + out_mask = (idx_m < M) & (idx_p < P) + + {{store_output(("idx_m", "idx_p"), "acc", "out_mask", val_shape=("BLOCK_SIZE_M", "BLOCK_SIZE_P"))}} +""", +) + + +b2b_gemm_right_template = TritonTemplate( + name="b2b_gemm_right", + grid=b2b_gemm_grid, + debug=False, + source=r""" +{{def_kernel("A", "B", "C")}} + + + # B2B_GEMM_RIGHT_TRITON_ENTRANCE + + # dynamic shapes + M = {{size("A", 0)}} + N = {{size("A", 1)}} + O = {{size("C", 0)}} + P = {{size("C", 1)}} + + # dynamic strides + stride_am = {{stride("A", 0)}} + stride_an = {{stride("A", 1)}} + stride_bn = {{stride("B", 0)}} + stride_bo = {{stride("B", 1)}} + stride_co = {{stride("C", 0)}} + stride_cp = {{stride("C", 1)}} + + # output block counts + num_m_block = tl.cdiv(M, BLOCK_SIZE_M) + num_p_block = tl.cdiv(P, BLOCK_SIZE_P) + + # internal block counts + num_n_block = tl.cdiv(N, BLOCK_SIZE_N) + num_o_block = tl.cdiv(O, BLOCK_SIZE_O) + + # output block ids + pid = tl.program_id(axis=0) + m_block_id = pid // num_p_block + p_block_id = pid % num_p_block + + # accumulator + acc = tl.zeros((BLOCK_SIZE_M, BLOCK_SIZE_P), dtype=tl.float32) + + # main loop (two cases) + offs_m = (m_block_id * BLOCK_SIZE_M + tl.arange(0, BLOCK_SIZE_M)) + offs_p = (p_block_id * BLOCK_SIZE_P + tl.arange(0, BLOCK_SIZE_P)) + # (A @ subgraph(B @ C)) + offs_n = tl.arange(0, BLOCK_SIZE_N) + for _ in range(num_n_block): + a_mask = (offs_m[:, None] < M) & (offs_n[None, :] < N) + a_ptrs = A + (offs_m[:, None] * stride_am + offs_n[None, :] * stride_an) + a = tl.load(a_ptrs, mask=a_mask, other=0.0).to(tl.float32) # BLOCK_SIZE_M * BLOCK_SIZE_N + acc_bc = tl.zeros((BLOCK_SIZE_N, BLOCK_SIZE_P), dtype=tl.float32) + offs_o = tl.arange(0, BLOCK_SIZE_O) + for __ in range(num_o_block): + b_mask = (offs_n[:, None] < N) & (offs_o[None, :] < O) + b_ptrs = B + (offs_n[:, None] * stride_bn + offs_o[None, :] * stride_bo) + b = tl.load(b_ptrs, mask=b_mask, other=0.0).to(tl.float32) # BLOCK_SIZE_N * BLOCK_SIZE_O + c_mask = (offs_o[:, None] < O) & (offs_p[None, :] < P) + c_ptrs = C + (offs_o[:, None] * stride_co + offs_p[None, :] * stride_cp) + c = tl.load(c_ptrs, mask=c_mask, other=0.0).to(tl.float32) # BLOCK_SIZE_O * BLOCK_SIZE_P + acc_bc += tl.dot(b, c, out_dtype=tl.float32) + offs_o += BLOCK_SIZE_O + # apply the subgraph + {{ modification( + subgraph_number=0, + output_name="post_subgraph_acc_bc", + inner_mm="acc_bc" + ) | indent_except_first(2) }} + acc += tl.dot(a, post_subgraph_acc_bc, out_dtype=tl.float32) + offs_n += BLOCK_SIZE_N + + # type conversion + acc = acc.to(tl.float16) + + # store preparation + idx_m = offs_m[:, None] + idx_p = offs_p[None, :] + out_mask = (idx_m < M) & (idx_p < P) + + {{store_output(("idx_m", "idx_p"), "acc", "out_mask", val_shape=("BLOCK_SIZE_M", "BLOCK_SIZE_P"))}} +""", +) + + +# Note: load_ratio_left and load_ratio_right are only calculating numbers +# in the trivial subgraph case; i.e. (A @ (B @ C)) or ((A @ B) @ C) + + +def load_ratio_left( + M: int, N: int, O: int, P: int, m: int, n: int, o: int, p: int +) -> float: + """ + compute the ratio of estimated numbers of loads in baseline and b2bgemm + M, N, O, P are matrix sizes + m, n, o, p are block sizes + | | baseline (lower bound) | b2bgemm + | load | M * N + N * O + M * O + O * P | M / m * P / p * O / o * (o * p + N / n * (m * n + n * o)) + | store | M * O + M * P | M * P + b2bgemm is always better on stores, but for loads we need to find out beneficial cases using this function + """ + base = M * N + N * O + M * O + O * P + gemm = ( + ceildiv(M, m) + * ceildiv(P, p) + * ceildiv(O, o) + * (o * p + ceildiv(N, n) * (m * n + n * o)) + ) + return base / gemm + + +def load_ratio_right( + M: int, N: int, O: int, P: int, m: int, n: int, o: int, p: int +) -> float: + """ + compute the ratio of estimated numbers of loads in baseline and b2bgemm + M, N, O, P are matrix sizes + m, n, o, p are block sizes + | | baseline (lower bound) | b2bgemm + | load | N * O + O * P + M * N + N * P | M / m * P / p * N / n * (m * n + O / o * (n * o + o * p)) + | store | N * P + M * P | M * P + b2bgemm is always better on stores, but for loads we need to find out beneficial cases using this function + """ + base = N * O + O * P + M * N + N * P + gemm = ( + ceildiv(M, m) + * ceildiv(P, p) + * ceildiv(N, n) + * (m * n + ceildiv(O, o) * (n * o + o * p)) + ) + return base / gemm + + +# the block sizes are limited by hardware (the shared memory) +# intuitively, the optimization works when the intermediate matrix is large +# and we assign large block sizes to large dimensions +b2b_gemm_configs = [ + { + "BLOCK_SIZE_M": 128, + "BLOCK_SIZE_N": 16, + "BLOCK_SIZE_O": 16, + "BLOCK_SIZE_P": 16, + "num_stages": 4, + "num_warps": 8, + }, + { + "BLOCK_SIZE_M": 128, + "BLOCK_SIZE_N": 32, + "BLOCK_SIZE_O": 32, + "BLOCK_SIZE_P": 32, + "num_stages": 2, + "num_warps": 4, + }, + { + "BLOCK_SIZE_M": 128, + "BLOCK_SIZE_N": 64, + "BLOCK_SIZE_O": 64, + "BLOCK_SIZE_P": 64, + "num_stages": 2, + "num_warps": 4, + }, + { + "BLOCK_SIZE_M": 128, + "BLOCK_SIZE_N": 16, + "BLOCK_SIZE_O": 128, + "BLOCK_SIZE_P": 16, + "num_stages": 4, + "num_warps": 8, + }, + { + "BLOCK_SIZE_M": 128, + "BLOCK_SIZE_N": 32, + "BLOCK_SIZE_O": 128, + "BLOCK_SIZE_P": 32, + "num_stages": 2, + "num_warps": 4, + }, + { + "BLOCK_SIZE_M": 128, + "BLOCK_SIZE_N": 64, + "BLOCK_SIZE_O": 128, + "BLOCK_SIZE_P": 64, + "num_stages": 2, + "num_warps": 4, + }, + { + "BLOCK_SIZE_M": 16, + "BLOCK_SIZE_N": 16, + "BLOCK_SIZE_O": 16, + "BLOCK_SIZE_P": 128, + "num_stages": 4, + "num_warps": 8, + }, + { + "BLOCK_SIZE_M": 32, + "BLOCK_SIZE_N": 32, + "BLOCK_SIZE_O": 32, + "BLOCK_SIZE_P": 128, + "num_stages": 2, + "num_warps": 4, + }, + { + "BLOCK_SIZE_M": 64, + "BLOCK_SIZE_N": 64, + "BLOCK_SIZE_O": 64, + "BLOCK_SIZE_P": 128, + "num_stages": 2, + "num_warps": 4, + }, + { + "BLOCK_SIZE_M": 16, + "BLOCK_SIZE_N": 128, + "BLOCK_SIZE_O": 16, + "BLOCK_SIZE_P": 128, + "num_stages": 4, + "num_warps": 8, + }, + { + "BLOCK_SIZE_M": 32, + "BLOCK_SIZE_N": 128, + "BLOCK_SIZE_O": 32, + "BLOCK_SIZE_P": 128, + "num_stages": 2, + "num_warps": 4, + }, + { + "BLOCK_SIZE_M": 64, + "BLOCK_SIZE_N": 128, + "BLOCK_SIZE_O": 64, + "BLOCK_SIZE_P": 128, + "num_stages": 2, + "num_warps": 4, + }, +] + + +def is_b2b_gemm_good_on( + is_left_assoc: bool, + A_node: torch.fx.Node, + B_node: torch.fx.Node, + C_node: torch.fx.Node, +) -> bool: + """ + checks whether the sizes are good for b2b_gemm + """ + # basic checks + if not all(["val" in A_node.meta, "val" in B_node.meta, "val" in C_node.meta]): + return False + fake_tensors = ( + A_node.meta["val"], + B_node.meta["val"], + C_node.meta["val"], + ) # torch._subclasses.fake_tensor.FakeTensor + + A, B, C = fake_tensors + + def check_all_attr_true(objects, attr): + return all(hasattr(obj, attr) and getattr(obj, attr) for obj in objects) + + if not check_all_attr_true(fake_tensors, "is_cuda") and not check_all_attr_true( + fake_tensors, "is_xpu" + ): + return False + if not all([len(A.shape) == 2, len(B.shape) == 2, len(C.shape) == 2]): + return False + if not ((A.shape[1] == B.shape[0]) and (B.shape[1] == C.shape[0])): + return False + # size checks: we only dispatch to B2B-GEMM when the average load ratio is > 1 + M, N = A.shape + O, P = C.shape + ratios = [] + if is_left_assoc: + for config in b2b_gemm_configs: + ratio = load_ratio_left( + M, + N, + O, + P, + config["BLOCK_SIZE_M"], + config["BLOCK_SIZE_N"], + config["BLOCK_SIZE_O"], + config["BLOCK_SIZE_P"], + ) + ratios.append(ratio) + else: + for config in b2b_gemm_configs: + ratio = load_ratio_right( + M, + N, + O, + P, + config["BLOCK_SIZE_M"], + config["BLOCK_SIZE_N"], + config["BLOCK_SIZE_O"], + config["BLOCK_SIZE_P"], + ) + ratios.append(ratio) + ratios.sort(reverse=True) + average_ratio = 1.0 + for r in ratios[:3]: # top 3 choices + average_ratio *= r + average_ratio = average_ratio ** (1 / 3) + return ( + average_ratio > 1 + ) # even if average_ratio is close to 1, the number of stores is always better + + +def unoptimized_b2b_gemm( + is_left_assoc: bool, + subgraph: Subgraph, + A: torch.Tensor, + B: torch.Tensor, + C: torch.Tensor, + *, + out: torch.Tensor, +) -> torch.Tensor: + """ + The unoptimized version is used as a fallback when the b2b_gemm kernel is not beneficial. + """ + if is_left_assoc: + torch.mm(subgraph.graph_module(torch.mm(A, B)), C, out=out) + else: + torch.mm(A, subgraph.graph_module(torch.mm(B, C)), out=out) + return out + + +unoptimized_choice = ExternKernelChoice(unoptimized_b2b_gemm) + + +def build_subgraph_buffer( + args: list[TensorBox], + subgraph: Subgraph, +): + """ + This function is adapted from ../kernel/flex_attention.py. + The goal is to take in the required args and produce the subgraph buffer + The subgraph buffer is a ComputedBuffer that will be inlined into the triton template + + Args: + args: The args that are passed into the subgraph + subgraph: The Subgraph ir for which to produce the output node + """ + cnt = 0 + env = {} + for node in subgraph.graph_module.graph.nodes: + if node.op == "placeholder": + env[node] = args[cnt] + cnt += 1 + elif node.op == "call_function": + # For call_function we use the default lowerings and pass in the + # already created TensorBoxes as args + args, kwargs = tree_map(lambda x: env.get(x, x), (node.args, node.kwargs)) + env[node] = lowerings[node.target](*args, **kwargs) + elif node.op == "output": + + def convert_output_node_to_buffer(output): + if output is None: + return None + output_node = output + output_buffer = env[output_node] + assert isinstance(output_buffer, TensorBox), ( + "The output node for B2B-GEMM's subgraph must be a TensorBox, but got: ", + type(output_buffer), + ) + assert isinstance(output_buffer.data, StorageBox), ( + "The output node for B2B-GEMM's subgraph must be a StorageBox, but got: ", + type(output_buffer), + ) + device = output_buffer.data.get_device() + assert device is not None + subgraph_buffer = ComputedBuffer( + name=None, + layout=FlexibleLayout( + device=device, + dtype=output_buffer.data.get_dtype(), + size=output_buffer.data.get_size(), + ), + data=output_buffer.data.data, # type: ignore[arg-type] + ) + return subgraph_buffer + + # node.args[0] should be a single element representing the output of the subgraph + return tree_map(convert_output_node_to_buffer, node.args[0]) + + raise ValueError("B2B-GEMM was passed a subgraph with no output node!") + + +def create_placeholder( + name: str, dtype: torch.dtype, device: torch.device +) -> TensorBox | ShapeAsConstantBuffer: + """ + Creates a placeholder input buffers for producing subgraph_output + """ + input_buffer = InputBuffer(name=name, layout=FixedLayout(device, dtype, [], [])) + return TensorBox.create(input_buffer) + + +def tuned_b2b_gemm( + is_left_assoc: bool, + subgraph: Subgraph, + A: torch._inductor.ir.TensorBox, + B: torch._inductor.ir.TensorBox, + C: torch._inductor.ir.TensorBox, + *, + layout=None, +) -> torch._inductor.ir.TensorBox: + # call .realize() to get rid of Pointwise + A.realize() + B.realize() + C.realize() + layout = FixedLayout( + A.get_device_or_error(), + A.get_dtype(), + [A.shape[0], C.shape[1]], # type: ignore[index] + ) + placeholders = [ + create_placeholder("inner_mm", A.get_dtype(), A.get_device_or_error()) + ] + subgraph_buffer = build_subgraph_buffer( + placeholders, # type: ignore[arg-type, list-item] + subgraph, + ) + choices: list[TritonTemplateCaller] = [] + for config in b2b_gemm_configs: + if is_left_assoc: + b2b_gemm_left_template.maybe_append_choice( + choices, + input_nodes=(A, B, C), + layout=layout, + subgraphs=[subgraph_buffer], + **config, + ) + else: + b2b_gemm_right_template.maybe_append_choice( + choices, + input_nodes=(A, B, C), + layout=layout, + subgraphs=[subgraph_buffer], + **config, + ) + # add the unoptimized choice to mitigate performance degradation + choices.append( + unoptimized_choice.bind( + (A, B, C), layout, is_left_assoc=is_left_assoc, subgraph=subgraph + ) + ) + # autotune + return autotune_select_algorithm("b2b_gemm", choices, [A, B, C], layout) + + +# match the inner mm of a potential b2b_gemm +@register_graph_pattern( + CallFunction(torch.ops.aten.mm, Arg(), Arg()), + # pyrefly: ignore [bad-argument-type] + pass_dict=B2B_GEMM_PASS, +) +def b2b_gemm_handler(match: Match, mat1: torch.fx.Node, mat2: torch.fx.Node) -> None: + # match.args: list[torch.fx.Node] + + def is_pointwise_node(node: torch.fx.Node) -> bool: + return ( + node.op == "call_function" + and isinstance(node.target, torch._ops.OpOverload) + and (torch.Tag.pointwise in node.target.tags) + ) + + def is_mm(node: torch.fx.Node) -> bool: + return node.target is torch.ops.aten.mm.default + + # the inner MM + inner_mm = match.nodes[-1] + + # find the (candidate) outer MM, which will be re-checked below to ensure every path reaches it + # In a real (A @ f(B @ C)), every path starting from (B @ C) must reach (A @ _). + outer_mm = None + node = inner_mm + while len(node.users) > 0: + node = next(iter(node.users)) + if is_mm(node): + outer_mm = node + break + elif is_pointwise_node(node): + continue + else: + break + if not outer_mm: + return + + # find the unique input node for outer_mm representing f(B @ C) in (A @ f(B @ C)) + # we call it the "f_node" + # when the pattern is simply (A @ (B @ C)), f_node is just inner_mm + f_node = inner_mm + while next(iter(f_node.users)) is not outer_mm: + f_node = next(iter(f_node.users)) + + def all_reach_via_pointwise_with_no_other_inputs( + src: torch.fx.Node, + dst: torch.fx.Node, + ) -> tuple[bool, OrderedSet[torch.fx.Node]]: + """ + check whether every user path from src reaches dst via pointwise nodes, + with no other input nodes for the intermediates and dst; + return + (1) the Boolean value + (2) the subgraph node set including src and dst (which only makes sense when the Boolean value is True) + """ + visited = OrderedSet[torch.fx.Node]() + input_counter: dict[torch.fx.Node, int] = {} + + all_reachable = True + queue = deque([src]) + while queue: + node = queue.popleft() + if node not in visited: + if node is dst: + visited.add(node) + elif (node is src) or is_pointwise_node(node): + for user in node.users: + # for nodes other than dst, bookkeep their users' input counts + if user not in input_counter: + input_counter[user] = len(user.all_input_nodes) + input_counter[user] -= 1 + # continue BFS + queue.append(user) + visited.add(node) + else: + all_reachable = False + break + + return ( + all_reachable and all(count == 0 for count in input_counter.values()), + visited, + ) + + # check inner_mm reaches f_node on every user path via pointwise nodes with no outside input_nodes + ok, subgraph_node_set = all_reach_via_pointwise_with_no_other_inputs( + inner_mm, f_node + ) + if not ok: + return + + # check inner_mm's inputs and f_node's outputs + if not (len(inner_mm.all_input_nodes) == 2 and len(f_node.users) == 1): + return + + # at this point, the nodes between inner_mm and f_node (both included) + # are all used internally inside (A @ subgraph(B @ C)) + # i.e. they neither have other users nor have other inputs + + # original graph and module + graph, module = inner_mm.graph, inner_mm.graph.owning_module + + # construct the new (sub)graph + subgraph_node_list: list[ + torch.fx.Node + ] = [] # ordered list of nodes used for node removal later + new_graph: torch.fx.Graph = torch.fx.Graph() + node_remapping: dict[torch.fx.Node, torch.fx.Node] = {} + new_input_anchor: torch.fx.Node # inner_mm, to be changed to an input node + new_output_anchor: torch.fx.Node # f_node, to be used to construct an output node + new_input_node: torch.fx.Node + new_output_node: torch.fx.Node + for node in graph.nodes: # preserve the order of nodes + if node in subgraph_node_set: + subgraph_node_list.append(node) + new_node = new_graph.node_copy(node, lambda x: node_remapping.get(x, x)) + node_remapping[node] = new_node + if node is inner_mm: + new_input_anchor = new_node + if node is f_node: + new_output_anchor = new_node + # pyrefly: ignore [unbound-name] + if new_input_anchor is not new_output_anchor: # subgraph is non-trivial + # update the input node + # pyrefly: ignore [unbound-name] + with new_graph.inserting_before(new_input_anchor): + new_input_node = new_graph.placeholder(name="subgraph_input") + # pyrefly: ignore [unbound-name] + new_input_node.meta.update(new_input_anchor.meta) + # pyrefly: ignore [unbound-name] + new_input_anchor.replace_all_uses_with(new_input_node) + # pyrefly: ignore [unbound-name] + new_graph.erase_node(new_input_anchor) + # add the output node + # pyrefly: ignore [unbound-name] + new_output_node = new_graph.output(new_output_anchor) + # pyrefly: ignore [unbound-name] + new_output_node.meta.update(new_output_anchor.meta) + else: # subgraph is trivial, e.g. (A @ (B @ C)) + # update the input node + # pyrefly: ignore [unbound-name] + with new_graph.inserting_before(new_input_anchor): + new_input_node = new_graph.placeholder(name="subgraph_input") + # pyrefly: ignore [unbound-name] + new_input_node.meta.update(new_input_anchor.meta) + # pyrefly: ignore [unbound-name] + new_input_anchor.replace_all_uses_with(new_input_node) + # pyrefly: ignore [unbound-name] + new_graph.erase_node(new_input_anchor) + # update the output node (don't use new_output_anchor since it has been erased) + new_output_node = new_graph.output(new_input_node) + new_output_node.meta.update(new_input_node.meta) + new_graph.lint() + + # construct the subgraph + subgraph = Subgraph( + name="subgraph", graph_module=torch.fx.GraphModule(module, new_graph) + ) + + # two cases + # (1) (subgraph(A @ B) @ C), called "left_assoc" + # (2) (A @ subgraph(B @ C)), called "right_assoc" + is_left_assoc = outer_mm.args[0] is f_node + + # find the nodes A, B, C and check the sizes + A: torch.fx.Node + B: torch.fx.Node + C: torch.fx.Node + if is_left_assoc: + A = inner_mm.args[0] # type: ignore[assignment] + B = inner_mm.args[1] # type: ignore[assignment] + C = outer_mm.args[1] # type: ignore[assignment] + else: + A = outer_mm.args[0] # type: ignore[assignment] + B = inner_mm.args[0] # type: ignore[assignment] + C = inner_mm.args[1] # type: ignore[assignment] + if not is_b2b_gemm_good_on(is_left_assoc, A, B, C): + return + + # finally update the original graph + counters["inductor"]["b2b_gemm"] += 1 + graph = match.graph + with graph.inserting_before(outer_mm): + function = functools.partial(tuned_b2b_gemm, is_left_assoc, subgraph) + function.__name__ = tuned_b2b_gemm.__name__ # type: ignore[attr-defined] + function._inductor_lowering_function = True # type: ignore[attr-defined] + replacement: torch.fx.Node = graph.call_function( + function, + (A, B, C), + match.kwargs, + ) + replacement.meta.update(outer_mm.meta) + outer_mm.replace_all_uses_with(replacement) + # erase unnecessary nodes + graph.erase_node(outer_mm) + for node in reversed(subgraph_node_list): + graph.erase_node(node) + graph.lint() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/binary_folding.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/binary_folding.py new file mode 100644 index 0000000000000000000000000000000000000000..2f9bce1a8a2d599da6e8fa1f9b5a9442d6cbb954 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/binary_folding.py @@ -0,0 +1,503 @@ +# mypy: allow-untyped-defs +import functools +import itertools + +import torch + +from ..._dynamo.utils import counters +from .. import config +from ..pattern_matcher import Arg, CallFunction, KeywordArg +from .freezing_patterns import register_binary_folding_pattern + + +aten = torch.ops.aten +prims = torch.ops.prims + + +def mark_mixed_dtype(computation_node): + computation_node_dtype = computation_node.meta["val"].dtype + if computation_node_dtype not in (torch.float16, torch.bfloat16): + return + + if len(computation_node.users) != 1: + return + + computation_node_user = next(iter(computation_node.users.keys())) + if not isinstance(computation_node_user.meta["val"], torch.Tensor): + return + + if computation_node_user.meta["val"].dtype != torch.float32: + return + + while computation_node_user.target in _binary_ops: + if len(computation_node_user.users) != 1: + return + + computation_node_user = next(iter(computation_node_user.users.keys())) + + if computation_node_user.target != prims.convert_element_type.default: + return + + computation_node.meta["_allow_mixed_dtype_folding"] = computation_node_dtype + + +def mark_mixed_dtype_allowed_computation_ops(gm): + """ + Mark convolutions/linear which we will binary fold even with mixed precision constants. We constant fold in the higher precision + for better accuracy and then recover the original precision after. + """ + for target in [aten.convolution.default, aten.addmm.default, aten.mm.default]: + for node in gm.graph.find_nodes(op="call_function", target=target): + mark_mixed_dtype(node) + + +def recover_original_precision_folded_computation_ops(gm): + """ + After binary folding conv/linear weights and biases to a higher dtype, recover the original precision they were in. + """ + graph = gm.graph + for target, idx in ( + (aten.convolution.default, (1, 2)), + (aten.addmm.default, (0, 2)), + (aten.mm.default, (1,)), + ): + for node in graph.find_nodes(op="call_function", target=target): + orig_dtype = node.meta.get("_allow_mixed_dtype_folding", None) + if orig_dtype is None: + continue + + with graph.inserting_before(node): + for i in idx: + old_input = node.args[i] + if old_input is None: + continue + + new_input = graph.create_node( + "call_function", + prims.convert_element_type.default, + (old_input, orig_dtype), + ) + node.replace_input_with(old_input, new_input) + + +_binary_ops = [aten.add.Tensor, aten.sub.Tensor, aten.mul.Tensor, aten.div.Tensor] + + +@functools.cache +def binary_folding_init(): + _conv_args = [Arg() for _ in range(9)] + _addmm_args = [Arg() for _ in range(3)] + _mm_args = [Arg() for _ in range(2)] + _computation_ops = [aten.convolution.default, aten.addmm.default, aten.mm.default] + _computation_calls = [ + CallFunction(aten.convolution.default, *_conv_args, _users=1), + CallFunction(aten.addmm.default, *_addmm_args, _users=1), + CallFunction( + aten.reshape.default, + CallFunction(aten.addmm.default, *_addmm_args, _users=1), + Arg(), + _users=1, + ), + CallFunction(aten.mm.default, *_mm_args, _users=1), + CallFunction( + aten.reshape.default, + CallFunction(aten.mm.default, *_mm_args, _users=1), + Arg(), + _users=1, + ), + ] + + """ + In order to fuse add/sub/mul/div with conv/linear, the dimensions of its + constant tensor must satisfy the following: + - with resizing, broadcast to w/ weight/bias tensor shape + - broadcast to the conv/linear output shape + It needs to have a shape that can resize to weight/bias + tensor shape because we need to run the op with the conv/linear + weights/bias without changing their sizes. + It needs to broadcast to the conv/linear output shape so that we do + accidentally change the shape of op output by pre-fusing it + compared to eager. + The only dimension value shared by weight, bias, and conv/linear output + is they all contain a dim with value = channels-out. In the + conv/linear output tensor, this is in the second dimension, + so the pointwise op tensor may have a second dimension of + value == channels-out, but all the other dimensions have to be 1 + """ + + def _op_not_broadcasting_with_conv(weight_tensor, other_tensor): + # According to opDoesNotBroadCastWithConv of frozen_conv_folding.cpp + weight_shape = weight_tensor.shape + other_shape = other_tensor.shape + if len(weight_shape) < len(other_shape): + return False + if len(weight_shape) == len(other_shape) + 1: + # weight shape is [o, i, *], other_shape is [o, 1...]. + for i in reversed(range(len(other_shape))): + if i == 0 and weight_shape[0] == other_shape[i]: + continue + if other_shape[i] != 1: + return False + else: + # weight shape is [o, i, *], other_shape is [1, i, *] + for i in reversed(range(len(other_shape))): + if i == 1 and weight_shape[0] == other_shape[i]: + continue + if other_shape[i] != 1: + return False + return True + + def _op_not_broadcasting_with_linear(weight_tensor, other_tensor, has_reshape): + weight_shape = weight_tensor.shape + other_shape = other_tensor.shape + other_shapes = [ + torch.Size( + [ + weight_shape[1], + ] + ), + torch.Size([1, weight_shape[1]]), + torch.Size( + [ + 1, + ] + ), + torch.Size([1, 1]), + ] + if has_reshape: + other_shapes.extend( + [ + torch.Size([1, 1, weight_shape[1]]), + torch.Size([1, 1, 1]), + ] + ) + return other_shape in other_shapes + + def _check_conv_and_broadcast_op(conv_node, other): + # According to checkConvAndBroadcastingOpPreConditions of frozen_conv_folding.cpp. + # conv.weight + if conv_node.args[1].op != "get_attr": + return False + # conv.bias + if conv_node.args[1] is not None and conv_node.args[1].op != "get_attr": + return False + if ( + not isinstance(other, int) + and not isinstance(other, float) + and other.op != "get_attr" + ): + return False + + if len(conv_node.args[1].users) != 1: + return False + + weight_meta_value = conv_node.args[1].meta.get("val") + if weight_meta_value is None: + return False + # Avoid fusing op that causes type promotion + # restricting to float avoids int/float difficulties with scalar overload + if not weight_meta_value.is_floating_point(): + return False + if isinstance(other, torch.fx.Node) and other.op == "get_attr": + other_meta_value = other.meta.get("val") + if not other_meta_value.is_floating_point(): # type: ignore[union-attr] + return False + if ( + torch.promote_types(other_meta_value.dtype, weight_meta_value.dtype) # type: ignore[union-attr] + != weight_meta_value.dtype + ): + if not conv_node.meta.get("_allow_mixed_dtype_folding", False): + return False + + if ( + other_meta_value.dtype != torch.float # type: ignore[union-attr] + and weight_meta_value.dtype not in (torch.float16, torch.bfloat16) + ): + return False + + if not _op_not_broadcasting_with_conv(weight_meta_value, other_meta_value): + return False + elif not isinstance(other, float): + return False + + return True + + def _check_linear_and_broadcast_op(linear_node, other, has_reshape): + weight_node = ( + linear_node.args[2] + if linear_node.target is aten.addmm.default + else linear_node.args[1] + ) + bias_node = ( + linear_node.args[0] if linear_node.target is aten.addmm.default else None + ) + if weight_node.op != "get_attr": + return False + if bias_node is not None and bias_node.op != "get_attr": + return False + if ( + not isinstance(other, int) + and not isinstance(other, float) + and other.op != "get_attr" + ): + return False + + if len(weight_node.users) != 1: + return False + + weight_meta_value = weight_node.meta.get("val") + if weight_meta_value is None: + return False + # Avoid fusing op that causes type promotion + # restricting to float avoids int/float difficulties with scalar overload + if not weight_meta_value.is_floating_point(): + return False + if isinstance(other, torch.fx.Node) and other.op == "get_attr": + other_meta_value = other.meta.get("val") + if not other_meta_value.is_floating_point(): # type: ignore[union-attr] + return False + if ( + torch.promote_types(other_meta_value.dtype, weight_meta_value.dtype) # type: ignore[union-attr] + != weight_meta_value.dtype + ): + if not linear_node.meta.get("_allow_mixed_dtype_folding", False): + return False + + if ( + other_meta_value.dtype != torch.float # type: ignore[union-attr] + and weight_meta_value.dtype not in (torch.float16, torch.bfloat16) + ): + return False + + if not _op_not_broadcasting_with_linear( + weight_meta_value, other_meta_value, has_reshape + ): + return False + elif not isinstance(other, float): + return False + + return True + + def _is_foldable_pattern(match): + binary_node = match.output_node() + has_reshape = False + if binary_node.args[0].target in _computation_ops: + computation_node = binary_node.args[0] + other = binary_node.args[1] + elif binary_node.args[0].target is aten.reshape.default: + computation_node = binary_node.args[0].args[0] + other = binary_node.args[1] + has_reshape = True + elif binary_node.args[1].target in _computation_ops: + computation_node = binary_node.args[1] + other = binary_node.args[0] + else: + computation_node = binary_node.args[1].args[0] + other = binary_node.args[0] + has_reshape = False + if computation_node.target is aten.convolution.default: + return _check_conv_and_broadcast_op(computation_node, other) + elif computation_node.target in [aten.addmm.default, aten.mm.default]: + return ( + config.enable_linear_binary_folding + and _check_linear_and_broadcast_op(computation_node, other, has_reshape) + ) + + return False + + def resize_scalar_or_tensor_to_shape(graph, other, shape, weight): + if isinstance(other, float): + with torch.utils._python_dispatch._disable_current_modes(): + other_tensor = torch.tensor( + other, dtype=weight.dtype, device=weight.device + ) + graph.owning_module.register_buffer("other_tensor", other_tensor) + res = graph.create_node("get_attr", "other_tensor") + res = graph.create_node( + "call_function", + aten.reshape.default, + (res, (1,)), + ) + res = graph.create_node( + "call_function", + aten.expand.default, + (res, shape), + ) + elif other.meta.get("val").numel() == 1: + # expand errors if the shape input has less # dims than the tensor input + res = graph.create_node( + "call_function", + aten.reshape.default, + (other, (1,)), + ) + res = graph.create_node( + "call_function", + aten.expand.default, + (res, shape), + ) + else: + res = graph.create_node( + "call_function", + aten.reshape.default, + (other, shape), + ) + return res + + def _create_new_conv_node(graph, conv_node, binary_node, other): + assert conv_node.target is aten.convolution.default + conv_args = list(conv_node.args) + weight_meta_value = conv_node.args[1].meta.get("val") + bias = conv_args[2] + if binary_node.target in [aten.add.Tensor, aten.sub.Tensor]: + other_reshape = resize_scalar_or_tensor_to_shape( + graph, + other, + (weight_meta_value.size(0),), + weight_meta_value, + ) + new_bias = graph.create_node( + "call_function", + binary_node.target, + (0 if bias is None else bias, other_reshape), + ) + conv_args[2] = new_bias + else: + assert binary_node.target in [aten.mul.Tensor, aten.div.Tensor] + weight_broadcast_shape = [1 for _ in range(len(weight_meta_value.shape))] + weight_broadcast_shape[0] = weight_meta_value.size(0) + other_reshape1 = resize_scalar_or_tensor_to_shape( + graph, + other, + tuple(weight_broadcast_shape), + weight_meta_value, + ) + new_weight = graph.create_node( + "call_function", binary_node.target, (conv_args[1], other_reshape1) + ) + new_weight.meta.update(conv_args[1].meta) + conv_args[1] = new_weight + if bias is not None: + other_reshape = resize_scalar_or_tensor_to_shape( + graph, + other, + (weight_meta_value.size(0),), + weight_meta_value, + ) + new_bias = graph.create_node( + "call_function", binary_node.target, (bias, other_reshape) + ) + new_bias.meta.update(bias.meta) + conv_args[2] = new_bias + return graph.create_node("call_function", conv_node.target, tuple(conv_args)) + + def _create_new_linear_node(graph, linear_node, binary_node, other): + assert linear_node.target in [aten.addmm.default, aten.mm.default] + input_node = ( + linear_node.args[1] + if linear_node.target is aten.addmm.default + else linear_node.args[0] + ) + weight_node = ( + linear_node.args[2] + if linear_node.target is aten.addmm.default + else linear_node.args[1] + ) + bias_node = ( + linear_node.args[0] if linear_node.target is aten.addmm.default else None + ) + weight_meta_value = weight_node.meta.get("val") + if binary_node.target in [aten.add.Tensor, aten.sub.Tensor]: + other_reshape = resize_scalar_or_tensor_to_shape( + graph, + other, + (weight_meta_value.size(1),), + weight_meta_value, + ) + new_bias_node = graph.create_node( + "call_function", + binary_node.target, + (0 if bias_node is None else bias_node, other_reshape), + ) + return graph.create_node( + "call_function", + aten.addmm.default, + (new_bias_node, input_node, weight_node), + ) + else: + assert binary_node.target in [aten.mul.Tensor, aten.div.Tensor] + weight_broadcast_shape = [1, weight_meta_value.size(1)] + other_reshape1 = resize_scalar_or_tensor_to_shape( + graph, + other, + tuple(weight_broadcast_shape), + weight_meta_value, + ) + new_weight_node = graph.create_node( + "call_function", binary_node.target, (weight_node, other_reshape1) + ) + new_weight_node.meta.update(weight_node.meta) + if bias_node is not None: + other_reshape = resize_scalar_or_tensor_to_shape( + graph, + other, + (weight_meta_value.size(1),), + weight_meta_value, + ) + new_bias_node = graph.create_node( + "call_function", binary_node.target, (bias_node, other_reshape) + ) + new_bias_node.meta.update(bias_node.meta) + return graph.create_node( + "call_function", + linear_node.target, + (new_bias_node, input_node, new_weight_node), + ) + else: + return graph.create_node( + "call_function", linear_node.target, (input_node, new_weight_node) + ) + + for _computation_call, binary_op in itertools.product( + _computation_calls, _binary_ops + ): + + @register_binary_folding_pattern( + CallFunction(binary_op, _computation_call, KeywordArg("other")), + extra_check=_is_foldable_pattern, + ) + def folded_op(match, *args, **kwargs): + counters["inductor"]["binary_folding"] += 1 + other = kwargs.get("other") + binary_node = match.output_node() + reshape_node = None + if binary_node.args[0].target in _computation_ops: + computation_node = binary_node.args[0] + elif binary_node.args[0].target is aten.reshape.default: + computation_node = binary_node.args[0].args[0] + reshape_node = binary_node.args[0] + elif binary_node.args[1].target in _computation_ops: + computation_node = binary_node.args[1] + else: + computation_node = binary_node.args[1].args[0] + reshape_node = binary_node.args[1] + graph = match.graph + with graph.inserting_before(reshape_node if reshape_node else binary_node): + assert computation_node.target in _computation_ops + if computation_node.target is aten.convolution.default: + counters["inductor"]["binary_folding_conv"] += 1 + new_computation_node = _create_new_conv_node( + graph, computation_node, binary_node, other + ) + else: + new_computation_node = _create_new_linear_node( + graph, computation_node, binary_node, other + ) + new_computation_node.meta.update(computation_node.meta) + if reshape_node: + assert reshape_node.target is aten.reshape.default + computation_node.replace_all_uses_with(new_computation_node) + binary_node.replace_all_uses_with(reshape_node) + else: + binary_node.replace_all_uses_with(new_computation_node) + graph.erase_node(binary_node) + graph.erase_node(computation_node) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/bucketing.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/bucketing.py new file mode 100644 index 0000000000000000000000000000000000000000..e72cdccddb44010f316cad92d8e10e1d13af6400 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/bucketing.py @@ -0,0 +1,1100 @@ +import collections +import logging +import operator +from collections import defaultdict +from collections.abc import Callable +from typing import Any, Literal, TypeAlias + +import torch +import torch.distributed as dist +import torch.utils._pytree as pytree +from torch._dispatch.python import enable_python_dispatcher +from torch._dynamo.utils import detect_fake_mode +from torch._inductor.comm_analysis import ( + get_collective_type_from_kernel_name, + NCCL_COLL, +) +from torch._inductor.runtime.runtime_utils import dynamo_timed +from torch._logging import trace_structured +from torch.fx.experimental.proxy_tensor import make_fx +from torch.fx.traceback import NodeSource, NodeSourceAction +from torch.utils._ordered_set import OrderedSet + + +logger: logging.Logger = logging.getLogger(__name__) +logger.setLevel(logging.INFO) + +overlap_log = torch._logging.getArtifactLogger(__name__, "overlap") + +BucketMode: TypeAlias = Literal["default", "custom_ops", "custom_ops_multidtype"] + + +# Helper functions moved to top for better organization +def _ag_group_key(node: torch.fx.Node) -> tuple[str, torch.dtype]: # type: ignore[name-defined] + _, group_size, group_name = node.args + dtype = node.meta["val"].dtype + assert isinstance(group_name, str) + return (group_name, dtype) + + +def _ag_group_key_multidtype(node: torch.fx.Node) -> tuple[str]: + _, group_size, group_name = node.args + assert isinstance(group_name, str) + return (group_name,) + + +def _rs_group_key(node: torch.fx.Node) -> tuple[str, str, torch.dtype]: # type: ignore[name-defined] + _, reduce_op, group_size, group_name = node.args + dtype = node.meta["val"].dtype + assert isinstance(group_name, str) + assert isinstance(reduce_op, str) + return (group_name, reduce_op, dtype) + + +def _ar_group_key(node: torch.fx.Node) -> tuple[str, str, torch.dtype]: + _, reduce_op, group_name = node.args + dtype = node.meta["val"].dtype + assert isinstance(group_name, str) + assert isinstance(reduce_op, str) + return (group_name, reduce_op, dtype) + + +def _schedulable_wait_node(node: torch.fx.Node) -> bool: + """ + Add additional check on if the wait node is schedulable + We should not schedule a fx node that is: + 1. wait on a collective that is not callable + 2. wait on a non-NCCL communication node + """ + if not is_wait_tensor(node): + return False + assert isinstance(node.args[0], torch.fx.Node) + if not isinstance(node.args[0].target, Callable): + return False + is_callable: bool = node.args[0].op == "call_function" + coll: NCCL_COLL = get_collective_type_from_kernel_name(node.args[0].target.name()) + is_collective: bool = coll != NCCL_COLL.UNSUPPORTED + return is_callable and is_collective + + +def _populate_node_meta( + bucket_nodes: list[torch.fx.Node], new_nodes: list[torch.fx.Node] +): + if bucket_nodes: + for n in new_nodes: + # For the following keys, we only store the information of the first node so + # gm.print_readable shows some information + # Full information are stored in "bucketing_{key}_sources" + for key, default in [ + ("nn_module_stack", ""), + ("fwd_nn_module_stack", ""), + ("stack_trace", ""), + ("custom", {}), + ]: + n.meta[key] = bucket_nodes[0].meta.get(key, default) + + # Collect sources from all bucket nodes for this metadata key, for debugging purposes only + bucketing_sources_key = f"bucketing_{key}_sources" + # Use set to remove duplicates + if key == "stack_trace": + sources = OrderedSet( + [ + node.meta.get(key, default) + for node in bucket_nodes + if node.meta.get(key, default) + ] + ) + else: + # type might not be hashable + sources = [ + node.meta.get(key, default) + for node in bucket_nodes + if node.meta.get(key, default) + ] + n.meta[bucketing_sources_key] = sources + + # used by inductor provenance tracking + n.meta["from_node"] = [ + NodeSource( + original_node, + "bucketing_pass", + [NodeSourceAction.CREATE, NodeSourceAction.REPLACE], + ) + for original_node in bucket_nodes + ] + + +def bucket_key(node: torch.fx.Node, mode: BucketMode | None = None) -> object | None: + if is_all_gather_into_tensor(node): + group_key_fn = ( + _ag_group_key_multidtype if mode and "multidtype" in mode else _ag_group_key + ) + return group_key_fn(node) + elif is_reduce_scatter_tensor(node): + return _rs_group_key(node) + elif is_all_reduce_tensor(node): + return _ar_group_key(node) + else: + return None + + +def pick_bucket_dtype(dtypes: list[torch.dtype]) -> torch.dtype: # type: ignore[name-defined] + assert len(dtypes) > 0 + return min(dtypes, key=operator.attrgetter("itemsize")) + + +def bucket_cap_mb_by_bucket_idx_default(bucket_id: int) -> float: + """ + Determine the size of a bucket based on its ID. + + Args: + bucket_id (int): The ID of the bucket. + + Returns: + float: The size of the bucket. + """ + return 2000.0 + + +def bucket_all_gather( + gm: torch.fx.GraphModule, + bucket_cap_mb_by_bucket_idx: Callable[[int], float] | None = None, + mode: BucketMode = "default", +) -> None: + if bucket_cap_mb_by_bucket_idx is None: + from torch._inductor.fx_passes.bucketing import ( # pyrefly: ignore # missing-module-attribute + bucket_cap_mb_by_bucket_idx_default, + ) + + bucket_cap_mb_by_bucket_idx = bucket_cap_mb_by_bucket_idx_default + ag_buckets = bucket_all_gather_by_mb(gm, bucket_cap_mb_by_bucket_idx, None, mode) + if len(ag_buckets) == 0: + return + merge_all_gather(gm, ag_buckets, mode) + + +def bucket_reduce_scatter( + gm: torch.fx.GraphModule, + bucket_cap_mb_by_bucket_idx: Callable[[int], float] | None = None, + mode: BucketMode = "default", +) -> None: + if bucket_cap_mb_by_bucket_idx is None: + from torch._inductor.fx_passes.bucketing import ( # pyrefly: ignore # missing-module-attribute + bucket_cap_mb_by_bucket_idx_default, + ) + + bucket_cap_mb_by_bucket_idx = bucket_cap_mb_by_bucket_idx_default + rs_buckets = bucket_reduce_scatter_by_mb( + gm, bucket_cap_mb_by_bucket_idx, None, mode + ) + if len(rs_buckets) == 0: + return + merge_reduce_scatter(gm, rs_buckets, mode) + + +def is_all_gather_into_tensor(node: torch.fx.Node) -> bool: # type: ignore[arg-type] + return node.op == "call_function" and ( + node.target == torch.ops._c10d_functional.all_gather_into_tensor.default + or node.target == torch.ops._c10d_functional.all_gather_into_tensor_out.default + ) + + +def is_reduce_scatter_tensor(node: torch.fx.Node) -> bool: + return ( + node.op == "call_function" + and node.target is torch.ops._c10d_functional.reduce_scatter_tensor.default + ) + + +def is_wait_tensor(node: torch.fx.Node) -> bool: + return ( + node.op == "call_function" + and node.target is torch.ops._c10d_functional.wait_tensor.default + ) + + +def is_all_reduce_tensor(node: torch.fx.Node) -> bool: + return ( + node.op == "call_function" + and node.target is torch.ops._c10d_functional.all_reduce.default + ) + + +def is_all_to_all_tensor(node: torch.fx.Node) -> bool: + return ( + node.op == "call_function" + and node.target is torch.ops._c10d_functional.all_to_all_single.default + ) + + +def is_wait_tensor_from_all_gather_into_tensor(node: torch.fx.Node) -> bool: + return is_wait_tensor(node) and is_all_gather_into_tensor(node.args[0]) # type: ignore[arg-type] + + +def collect_node_descendants( + graph: torch.fx.Graph, +) -> dict[torch.fx.Node, OrderedSet[torch.fx.Node]]: + """ + Collects the descendants of each node in the graph. + Args: + graph (torch.fx.Graph): The graph to collect descendants from. + Returns: + dict[torch.fx.Node, OrderedSet[torch.fx.Node]]: A dictionary mapping each node to its descendants. + """ + node_descendants: dict[torch.fx.Node, OrderedSet[torch.fx.Node]] = ( + collections.defaultdict(OrderedSet) + ) + outdegree = collections.defaultdict(int) + queue = [] + + for node in graph.nodes: + n_outdegree = len(node.users) + if n_outdegree == 0: + queue.append(node) + else: + outdegree[node] = len(node.users) + + while queue: + node = queue.pop() + for input_node in node.all_input_nodes: + node_descendants[input_node] |= node_descendants[node] + node_descendants[input_node].add(node) + outdegree[input_node] -= 1 + + if outdegree[input_node] == 0: + queue.append(input_node) + + return node_descendants + + +def greedy_bucket_collective_by_mb( + gm: torch.fx.GraphModule, + bucket_cap_mb_by_bucket_idx: Callable[[int], float], + filter_node: Callable[[torch.fx.Node], bool], + node_group_key: Callable[[torch.fx.Node], Any], + filter_wait_node: Callable[[torch.fx.Node], bool] | None = None, +) -> list[list[torch.fx.Node]]: + """ + Bucketing adjacent collectives with equal node_group_key. + We can not bucket non adjacent collectives, + as this will effectively change the order of collectives. + Reordering can lead to different order on different ranks. + """ + g = gm.graph + found_candidates = False + for node in g.nodes: + if filter_node(node): + found_candidates = True + break + if not found_candidates: + return [] + + # TODO: pearce kelly algorithm for detecting cycles + node_descendents = collect_node_descendants(gm.graph) + + nodes_groups: list[list[torch.fx.Node]] = [] + cur_group: list[torch.fx.Node] = [] + cur_group_key = None + + for node in g.nodes: + if is_wait_tensor(node) and filter_node(node.args[0]): + if (filter_wait_node is None) or filter_wait_node(node): + coll_node = node.args[0] + group_key = node_group_key(coll_node) + if group_key == cur_group_key: + cur_group.append(coll_node) + else: + if len(cur_group) > 1: + nodes_groups.append(cur_group) + cur_group = [coll_node] + cur_group_key = group_key + + if len(cur_group) > 1: + nodes_groups.append(cur_group) + + buckets: list[list[torch.fx.Node]] = [] + for nodes in nodes_groups: + cur_bucket: list[torch.fx.Node] = [] + cur_bucket_descendents: OrderedSet[torch.fx.Node] = OrderedSet() + cur_bucket_size_bytes: int = 0 + cur_bucket_id: int = 0 + bucket_size_bytes = int( + bucket_cap_mb_by_bucket_idx(cur_bucket_id) * 1024 * 1024 + ) + for node in nodes: + if node in cur_bucket_descendents: + # if there is a path from node to the current bucket, we cannot horizontally fuse (bucket) + continue + assert "val" in node.meta + n_val = node.meta["val"] + out_size_bytes = n_val.numel() * n_val.element_size() + n_input_val = node.all_input_nodes[0].meta["val"] + in_size_bytes = n_input_val.numel() * n_input_val.element_size() + size_bytes = max(out_size_bytes, in_size_bytes) + if cur_bucket_size_bytes + size_bytes > bucket_size_bytes and cur_bucket: + # Current bucket is full, create new bucket + if len(cur_bucket) > 1: + buckets.append(cur_bucket) + cur_bucket = [] + cur_bucket_size_bytes = 0 + cur_bucket_id += 1 + cur_bucket_descendents = OrderedSet() + cur_bucket_size_bytes += size_bytes + cur_bucket.append(node) + cur_bucket_descendents |= node_descendents[node] + if len(cur_bucket) > 1: + buckets.append(cur_bucket) + return buckets + + +def bucket_all_gather_by_mb( + gm: torch.fx.GraphModule, + bucket_cap_mb_by_bucket_idx: Callable[[int], float], + filter_wait_node: Callable[[torch.fx.Node], bool] | None = None, + mode: BucketMode = "default", +) -> list[list[torch.fx.Node]]: + """ + Identifies all all_gather nodes and groups them into buckets, + based on size limit `bucket_cap_mb_by_bucket_idx`. + + Args: + gm (torch.fx.GraphModule): GraphModule where to bucket all_gathers. + bucket_cap_mb_by_bucket_idx (Callable[[int], float]): Callable to specify cap of the bucket + in megabytes by bucket idx. The idea of `bucket_cap_mb_by_bucket_idx` is to allow + to specify different sizes of the buckets at the start, + as first all_gather is usually exposed. Interface of bucket_cap_mb_by_bucket_idx + is `bucket_cap_mb_by_bucket_idx_default` function that is default value for `bucket_cap_mb_by_bucket_idx`. + filter_wait_node (Callable[[torch.fx.Node], bool] | None): If specified, + only all_gather nodes with wait_node that satisfy `filter_wait_node` will be bucketed. + + Returns: + list[list[torch.fx.Node]]: List of buckets, where each bucket is a list of all_gather nodes. + """ + + group_key_fn = ( + _ag_group_key_multidtype if mode and "multidtype" in mode else _ag_group_key + ) + + return greedy_bucket_collective_by_mb( + gm, + bucket_cap_mb_by_bucket_idx, + is_all_gather_into_tensor, + group_key_fn, + filter_wait_node, + ) + + +def bucket_reduce_scatter_by_mb( + gm: torch.fx.GraphModule, + bucket_cap_mb_by_bucket_idx: Callable[[int], float], + filter_wait_node: Callable[[torch.fx.Node], bool] | None = None, + mode: BucketMode = "default", +) -> list[list[torch.fx.Node]]: + """ + Identifies all reduce_scatter nodes and groups them into buckets, + based on size limit `bucket_cap_mb_by_bucket_idx`. + + Args: + gm (torch.fx.GraphModule): GraphModule where to bucket reduce_scatters. + bucket_cap_mb_by_bucket_idx (Callable[[int], float]): Callable to specify cap of the bucket + in megabytes by bucket idx. The idea of `bucket_cap_mb_by_bucket_idx` is to allow + to specify different sizes of the buckets. + filter_wait_node (Callable[[torch.fx.Node], bool] | None): If specified, + only reduce_scatter nodes with wait_node that satisfy `filter_wait_node` will be bucketed. + + Returns: + list[list[torch.fx.Node]]: List of buckets, where each bucket is a list of reduce_scatter nodes. + """ + + assert "multidtype" not in mode, ( + "reduce scatter bucketing does not support multidtype" + ) + + return greedy_bucket_collective_by_mb( + gm, + bucket_cap_mb_by_bucket_idx, + is_reduce_scatter_tensor, + _rs_group_key, + filter_wait_node, + ) + + +def bucket_all_reduce_by_mb( + gm: torch.fx.GraphModule, + bucket_cap_mb_by_bucket_idx: Callable[[int], float], + filter_wait_node: Callable[[torch.fx.Node], bool] | None = None, +) -> list[list[torch.fx.Node]]: + return greedy_bucket_collective_by_mb( + gm, + bucket_cap_mb_by_bucket_idx, + is_all_reduce_tensor, + _ar_group_key, + filter_wait_node, + ) + + +def bucket_all_reduce( + gm: torch.fx.GraphModule, + bucket_cap_mb_by_bucket_idx: Callable[[int], float] | None = None, + mode: str | None = None, +) -> None: + if bucket_cap_mb_by_bucket_idx is None: + from torch._inductor.fx_passes.bucketing import ( # pyrefly: ignore # missing-module-attribute + bucket_cap_mb_by_bucket_idx_default, + ) + + bucket_cap_mb_by_bucket_idx = bucket_cap_mb_by_bucket_idx_default + ar_buckets = bucket_all_reduce_by_mb(gm, bucket_cap_mb_by_bucket_idx) + if len(ar_buckets) == 0: + return + for bucket in ar_buckets: + merge_all_reduce_bucket(gm.graph, bucket, mode) + + +@torch.library.custom_op("bucketing::_pre_bucket_reduce_scatter", mutates_args={}) +def _pre_bucket_reduce_scatter( + rs_ins: list[torch.Tensor], + group_size: int, +) -> torch.Tensor: + rs_ins_flattened = [x.view(group_size, -1) for x in rs_ins] + new_rs_in = torch.cat(rs_ins_flattened, dim=1).flatten() + return new_rs_in + + +def _pre_bucket_reduce_scatter_fake( + rs_ins: list[torch.Tensor], + group_size: int, +) -> torch.Tensor: + out_numel = sum(rs_in.numel() for rs_in in rs_ins) + return torch.empty((out_numel,), device=rs_ins[0].device, dtype=rs_ins[0].dtype) + + +_pre_bucket_reduce_scatter.register_fake(_pre_bucket_reduce_scatter_fake) + + +def reduce_scatter_merge_fn_to_trace_custom_ops( + rs_ins: list[torch.Tensor], + group_size: int, + group_name: str, + reduce_op: str, + reduce_dtype: torch.dtype, # type: ignore[name-defined] + device: torch.device, # type: ignore[name-defined] +) -> list[torch.Tensor]: # type: ignore[no-untyped-def] + new_out_sizes = [(x.shape[0] // group_size,) + x.shape[1:] for x in rs_ins] + new_out_numels = [x.numel() // group_size for x in rs_ins] + + new_rs_in = torch.ops.bucketing._pre_bucket_reduce_scatter(rs_ins, group_size) + + # TODO - either use torch.cat or make sure inductor foreach codegen + # fires more reliably + new_rs_out = torch.ops.c10d_functional.wait_tensor( + torch.ops._c10d_functional.reduce_scatter_tensor.default( + new_rs_in, reduce_op, group_size, group_name + ) + ) + new_out_flat = new_rs_out.split(new_out_numels, 0) + new_outs = [x.view(s) for x, s in zip(new_out_flat, new_out_sizes)] + return new_outs + + +def reduce_scatter_merge_fn_to_trace( + rs_ins: list[torch.Tensor], + group_size: int, + group_name: str, + reduce_op: str, + reduce_dtype: torch.dtype, # type: ignore[name-defined] + device: torch.device, # type: ignore[name-defined] +) -> list[torch.Tensor]: # type: ignore[no-untyped-def] + rs_ins_flattened = [x.view(group_size, -1) for x in rs_ins] + + new_out_sizes = [(x.shape[0] // group_size,) + x.shape[1:] for x in rs_ins] + new_out_numels = [x.numel() // group_size for x in rs_ins] + + new_rs_in = torch.cat(rs_ins_flattened, dim=1).flatten() + + new_rs_out = torch.ops.c10d_functional.wait_tensor( + torch.ops._c10d_functional.reduce_scatter_tensor.default( + new_rs_in, reduce_op, group_size, group_name + ) + ) + new_out_flat = new_rs_out.split(new_out_numels, 0) + new_outs = [x.view(s) for x, s in zip(new_out_flat, new_out_sizes)] + return new_outs + + +def all_reduce_merge_fn_to_trace( + ar_ins: list[torch.Tensor], + group_name: str, + reduce_op: str, + reduce_dtype: torch.dtype, # type: ignore[name-defined] + device: torch.device, # type: ignore[name-defined] +) -> list[torch.Tensor]: # type: ignore[no-untyped-def] + ar_ins_flattened = [x.view(-1) for x in ar_ins] + new_ar_in = torch.cat(ar_ins_flattened) + new_ar_out = torch.ops.c10d_functional.wait_tensor( + torch.ops._c10d_functional.all_reduce.default(new_ar_in, reduce_op, group_name) + ) + split_sizes = [x.numel() for x in ar_ins] + new_outs_flat = new_ar_out.split(split_sizes) + new_outs = [x.view(ar_in.shape) for x, ar_in in zip(new_outs_flat, ar_ins)] + return new_outs + + +# List of all torch dtypes for serialization through custom ops +# TODO: custom ops support list[dtype] input +_ALL_DTYPES = tuple( + [ + getattr(torch, attr) + for attr in dir(torch) + if isinstance(getattr(torch, attr), torch.dtype) + ] +) + + +@torch.library.custom_op("bucketing::_pre_bucket_all_gather", mutates_args={}) +def _pre_bucket_all_gather( + ag_ins: list[torch.Tensor], + group_size: int, + group_name: str, + dtype: torch.dtype, # type: ignore[name-defined] + out_dtype_ints: list[ + int + ], # dtype enum values, that inputs are converted to before all_gather + rank: int, +) -> torch.Tensor: + # Convert int indices back to torch.dtype + out_dtypes = [_ALL_DTYPES[d] for d in out_dtype_ints] + ins_split_sizes_bytes = [ + ag_in.numel() * out_dtype.itemsize + for ag_in, out_dtype in zip(ag_ins, out_dtypes, strict=True) + ] + bucket_dtype_size_bytes = dtype.itemsize + ins_split_sizes = [ + _bytes // bucket_dtype_size_bytes for _bytes in ins_split_sizes_bytes + ] + ag_input_numel = sum(ins_split_sizes) + device = ag_ins[0].device + new_ag_out = torch.empty(ag_input_numel * group_size, dtype=dtype, device=device) + new_ag_in = new_ag_out.narrow(0, ag_input_numel * rank, ag_input_numel) + foreach_copy_dsts = torch.split(new_ag_in, ins_split_sizes) + # View each destination slice as its output dtype, then copy + # The copy operation handles dtype conversion from input dtype to output dtype + foreach_copy_dsts_typed = [ + dst.view(out_dtype) + for dst, out_dtype in zip(foreach_copy_dsts, out_dtypes, strict=True) + ] + ag_ins_flattened = [ag_in.reshape(-1) for ag_in in ag_ins] + torch._foreach_copy_(foreach_copy_dsts_typed, ag_ins_flattened) + return new_ag_out + + +def _pre_bucket_all_gather_fake( + ag_ins: list[torch.Tensor], + group_size: int, + group_name: str, + dtype: torch.dtype, # type: ignore[name-defined] + out_dtype_ints: list[int], + rank: int, +) -> torch.Tensor: + out_dtypes = [_ALL_DTYPES[d] for d in out_dtype_ints] + ins_split_sizes_bytes = [ + ag_in.numel() * out_dtype.itemsize + for ag_in, out_dtype in zip(ag_ins, out_dtypes, strict=True) + ] + bucket_dtype_size_bytes = dtype.itemsize + ins_split_sizes = [ + _bytes // bucket_dtype_size_bytes for _bytes in ins_split_sizes_bytes + ] + ag_input_numel = sum(ins_split_sizes) + device = ag_ins[0].device + new_ag_out = torch.empty(ag_input_numel * group_size, dtype=dtype, device=device) + return new_ag_out + + +_pre_bucket_all_gather.register_fake(_pre_bucket_all_gather_fake) + + +def all_gather_merge_fn_to_trace_custom_ops( + _ag_ins: list[torch.Tensor], + group_size: int, + group_name: str, + dtype: torch.dtype, # type: ignore[name-defined] + out_dtypes: list[torch.dtype], # type: ignore[name-defined] + rank: int, +) -> list[torch.Tensor]: + # Don't create convert_element_type ops - _pre_bucket_all_gather handles conversion + # by viewing destination slices as output dtypes and letting copy do the conversion + ag_ins = _ag_ins + ins_sizes = [ag_in.shape for ag_in in ag_ins] + ins_split_sizes_bytes = [ + ag_in.numel() * out_dtype.itemsize + for ag_in, out_dtype in zip(ag_ins, out_dtypes) + ] + bucket_dtype_size_bytes = dtype.itemsize + ins_split_sizes = [ + _bytes // bucket_dtype_size_bytes for _bytes in ins_split_sizes_bytes + ] + ag_input_numel = sum(ins_split_sizes) + + # Convert out_dtypes to indices for custom_op + # TODO: custom ops support list[dtype] input + out_dtype_ints = [_ALL_DTYPES.index(dt) for dt in out_dtypes] + + new_ag_out = torch.ops.bucketing._pre_bucket_all_gather( + ag_ins, group_size, group_name, dtype, out_dtype_ints, rank + ) + new_ag_in = new_ag_out.narrow(0, ag_input_numel * rank, ag_input_numel) + wait_tensor = torch.ops.c10d_functional.wait_tensor( + torch.ops._c10d_functional.all_gather_into_tensor_out.default( + new_ag_in, group_size, group_name, out=new_ag_out + ) + ) + new_ag_out_reshaped = wait_tensor.reshape(group_size, -1) + outs_bucket_dtype = torch.split_with_sizes( + new_ag_out_reshaped, + ins_split_sizes, + dim=1, + ) + outs_reshaped = [ + o.view(out_dtype).reshape((shape[0] * group_size,) + shape[1:]) + for o, shape, out_dtype in zip(outs_bucket_dtype, ins_sizes, out_dtypes) + ] + return outs_reshaped + + +def all_gather_merge_fn_to_trace( + ag_ins: list[torch.Tensor], + group_size: int, + group_name: str, + dtype: torch.dtype, # type: ignore[name-defined] + out_dtypes: list[torch.dtype], # type: ignore[name-defined] + rank: int, +) -> list[torch.Tensor]: + ins_sizes = [ag_in.shape for ag_in in ag_ins] + ins_split_sizes = [ag_in.numel() for ag_in in ag_ins] + ag_input_numel = sum(ins_split_sizes) + device = ag_ins[0].device + new_ag_out = torch.empty(ag_input_numel * group_size, dtype=dtype, device=device) + new_ag_in = new_ag_out.narrow(0, ag_input_numel * rank, ag_input_numel) + foreach_copy_dsts = torch.split(new_ag_in, ins_split_sizes) + ag_ins_flattened = [ag_in.reshape(-1) for ag_in in ag_ins] + torch._foreach_copy_(foreach_copy_dsts, ag_ins_flattened) + wait_tensor = torch.ops.c10d_functional.wait_tensor( + torch.ops._c10d_functional.all_gather_into_tensor_out.default( + new_ag_in, group_size, group_name, out=new_ag_out + ) + ) + new_ag_out_reshaped = wait_tensor.reshape(group_size, -1) + outs = torch.split_with_sizes( + new_ag_out_reshaped, + ins_split_sizes, + dim=1, + ) + outs_reshaped = [ + o.reshape((shape[0] * group_size,) + shape[1:]) + for o, shape in zip(outs, ins_sizes) + ] + return outs_reshaped + + +def all_gather_merge_fn_to_trace_functional( + ag_ins: list[torch.Tensor], + group_size: int, + group_name: str, + dtype: torch.dtype, # type: ignore[name-defined] + out_dtypes: list[torch.dtype], # type: ignore[name-defined] + rank: int, + use_fsdp_ag_copy_in: bool = False, +) -> list[torch.Tensor]: + # Implementation that is functional in graph, + # but uses custom op torch.ops.fsdp.all_gather_copy_in. + ins_sizes = [ag_in.shape for ag_in in ag_ins] + ins_split_sizes = [ag_in.numel() for ag_in in ag_ins] + ag_input_numel = sum(ins_split_sizes) + device = ag_ins[0].device + new_ag_out = torch.empty(ag_input_numel * group_size, dtype=dtype, device=device) + ag_ins_flattened = [ag_in.reshape(-1) for ag_in in ag_ins] + if use_fsdp_ag_copy_in: + new_ag_in, new_ag_out = torch.ops.fsdp.all_gather_copy_in( + ag_ins_flattened, new_ag_out, ins_split_sizes, ag_input_numel, rank + ) + else: + new_ag_in = torch.cat(ag_ins_flattened, dim=0) + wait_tensor = torch.ops.c10d_functional.wait_tensor( + torch.ops._c10d_functional.all_gather_into_tensor_out.default( + new_ag_in, group_size, group_name, out=new_ag_out + ) + ) + new_ag_out_reshaped = wait_tensor.reshape(group_size, -1) + outs = torch.split_with_sizes( + new_ag_out_reshaped, + ins_split_sizes, + dim=1, + ) + outs_reshaped = [ + o.reshape((shape[0] * group_size,) + shape[1:]) + for o, shape in zip(outs, ins_sizes) + ] + return outs_reshaped + + +def _trace(fn, inps) -> torch.fx.GraphModule: # type: ignore[no-untyped-def] + with dynamo_timed("fx.bucketing._trace", log_pt2_compile_event=True): + fake_mode = detect_fake_mode(inps) + assert fake_mode is not None + with fake_mode, enable_python_dispatcher(): + out = make_fx(fn)(*inps) + for node in out.graph.find_nodes( + op="call_function", target=torch.ops.aten.detach.default + ): + node.replace_all_uses_with(node.args[0]) + out.graph.erase_node(node) + return out + + +def _insert_fn_trace_before_node( # type: ignore[no-untyped-def] + g: torch.fx.Graph, + fn_to_trace, + inps, + insert_before_node: torch.fx.Node, + g_fn_inps: list[torch.fx.Node], + g_fn_outs: list[torch.fx.Node], +) -> tuple[dict[torch.fx.Node, torch.fx.Node], list[torch.fx.Node]]: # type: ignore[no-untyped-def] + """ + Helper function that traces :attr:`fn_to_trace` with inputs + :attr:`inps`. + The result function graph will be inserted before :attr:`insert_before_node`, + using :attr:`g_fn_inps` nodes of original graph as inputs of function graph, + function graph outputs will replace :attr:`g_fn_outs` in original graph. + + Returns: + (replacements, new_nodes): Dictionary mapping old to new nodes, and list of all newly inserted nodes + """ + with dynamo_timed( + "fx.bucketing._insert_fn_trace_before_node", log_pt2_compile_event=True + ): + fn_gm = _trace( + fn_to_trace, + inps, + ) + fn_g = fn_gm.graph + fn_g_ins = fn_g.find_nodes(op="placeholder") + env = {fn_g_ins[idx]: g_fn_inps[idx] for idx in range(len(g_fn_inps))} + g_fn_new_outs: list[torch.fx.Node] = [] + new_nodes: list[torch.fx.Node] = [] # Track all newly inserted nodes + + with g.inserting_before(insert_before_node): + for _n in fn_g.nodes: + if _n.op == "placeholder": + continue + _new_n = g.node_copy(_n, lambda x: env[x]) + env[_n] = _new_n + if _n.op == "output": + g_fn_new_outs = _new_n.args[0] # type: ignore[assignment] + g.erase_node(_new_n) + else: + new_nodes.append(_new_n) # Track non-output nodes + + replacements = { # noqa: C416 + orig_out: new_out for orig_out, new_out in zip(g_fn_outs, g_fn_new_outs) + } + for orig_out, new_out in zip(g_fn_outs, g_fn_new_outs): + orig_out.replace_all_uses_with(new_out) + + return replacements, new_nodes + + +def has_mergeable_all_gather_convert_dtype(n: torch.fx.Node) -> bool: + node_in = n.args[0] + return ( + is_all_gather_into_tensor(n) + and isinstance(node_in, torch.fx.Node) + and node_in.op == "call_function" + and ( + node_in.target is torch.ops.prims.convert_element_type.default + or node_in.target is torch.ops.aten._to_copy.default + ) + and len(node_in.users) == 1 + ) + + +def process_collective_bucket( + g: torch.fx.Graph, + bucket_nodes: list[torch.fx.Node], + fn_to_trace: Callable[..., list[torch.Tensor]], + trace_args_fn: Callable[[list[torch.fx.Node]], tuple[Any, ...]], + insert_before: torch.fx.Node | None = None, + wait_insertion_point: torch.fx.Node | None = None, +) -> tuple[list[torch.fx.Node], dict[torch.fx.Node, torch.fx.Node]]: + """ + Process a single bucket of collective operation nodes with flexible insertion control. + + Args: + g: The graph to modify + bucket_nodes: Nodes in the current bucket to process + fn_to_trace: Function to trace and insert + trace_args_fn: Function to create trace arguments from inputs + insert_before: Where to insert the traced function (default: after last bucket node) + wait_insertion_point: If provided, move all nodes from wait() onwards to before this node + + Returns: + new_nodes: List of all newly inserted nodes + replacements: Dictionary mapping old wait nodes to new output nodes + """ + # Collect inputs and waits from current bucket + bucket_ins: list[torch.fx.Node] = [] + bucket_waits: list[torch.fx.Node] = [] + ag_node_to_pre_nodes: dict[torch.fx.Node, list[torch.fx.Node]] = defaultdict(list) + + for n in bucket_nodes: + assert len(n.users) == 1, f"Expected single user for {n}, got {n.users}" + wait_n = next(iter(n.users)) + + # Handle convert_element_type operations (for all_gather) + node_in = n.args[0] + if has_mergeable_all_gather_convert_dtype(n): + ag_node_to_pre_nodes[n].append(node_in) + node_in = node_in.args[0] + + assert isinstance(node_in, torch.fx.Node) # Ensure node_in is a Node + bucket_ins.append(node_in) + bucket_waits.append(wait_n) + + # Create trace arguments + trace_args = trace_args_fn(bucket_ins) + + # Determine insertion point + if insert_before is None: + insert_before = bucket_nodes[-1].next + + # Insert traced function and get replacements + new nodes + replacements, new_nodes = _insert_fn_trace_before_node( + g, + fn_to_trace, + trace_args, + insert_before, + bucket_ins, + bucket_waits, + ) + + # If requested, move wait nodes and everything after to specified location + if wait_insertion_point is not None: + # Find the first wait node in new_nodes + wait_start_idx = None + for i, node in enumerate(new_nodes): + if is_wait_tensor(node): + wait_start_idx = i + break + + # Move all nodes from wait onwards (including the wait) + if wait_start_idx is not None: + nodes_to_move = new_nodes[wait_start_idx:] + for node in nodes_to_move: + wait_insertion_point.prepend(node) + + # Preserve metadata from original collective nodes to new bucketed nodes + if bucket_nodes: + overlap_log.debug( + "Bucketing nodes: %s, New nodes: %s", + ",".join([n.name for n in bucket_nodes]), + ",".join([n.name for n in new_nodes]), + ) + _populate_node_meta(bucket_nodes, new_nodes) + + # Erase old nodes + for node, wait_n in zip(bucket_nodes, bucket_waits): + g.erase_node(wait_n) + g.erase_node(node) + # Erase any convert_element_type nodes we tracked + for pre_node in reversed(ag_node_to_pre_nodes[node]): + g.erase_node(pre_node) + + return new_nodes, replacements + + +def merge_reduce_scatter_bucket( + g: torch.fx.Graph, + rs_nodes: list[torch.fx.Node], + mode: BucketMode = "default", + insert_before: torch.fx.Node | None = None, + wait_insertion_point: torch.fx.Node | None = None, +) -> tuple[list[torch.fx.Node], dict[torch.fx.Node, torch.fx.Node]]: + # Validate bucket consistency + rs0 = rs_nodes[0] + rs0_val = rs0.meta["val"] + _, reduce_op, group_size, group_name = rs0.args + reduce_dtype = rs0_val.dtype + device = rs0_val.device + + for n in rs_nodes: + rs_val = n.meta["val"] + assert ( + n.args[1] == reduce_op + and n.args[2] == group_size + and n.args[3] == group_name + and rs_val.device == device + and rs_val.dtype == reduce_dtype + ) + + # Choose merge function based on mode + rs_merge_fn = reduce_scatter_merge_fn_to_trace + if mode and "custom_ops" in mode: + rs_merge_fn = reduce_scatter_merge_fn_to_trace_custom_ops + + # Process bucket with lazy input collection + def create_trace_args(bucket_ins: list[torch.fx.Node]) -> tuple[Any, ...]: + return ( + pytree.tree_map(lambda node: node.meta["val"], bucket_ins), + group_size, + group_name, + reduce_op, + reduce_dtype, + device, + ) + + return process_collective_bucket( + g, + rs_nodes, + rs_merge_fn, + create_trace_args, + insert_before=insert_before, + wait_insertion_point=wait_insertion_point, + ) + + +def merge_all_reduce_bucket( + g: torch.fx.Graph, + ar_nodes: list[torch.fx.Node], + mode: str | None = None, + insert_before: torch.fx.Node | None = None, + wait_insertion_point: torch.fx.Node | None = None, +) -> tuple[list[torch.fx.Node], dict[torch.fx.Node, torch.fx.Node]]: + ar0 = ar_nodes[0] + ar0_val = ar0.meta["val"] + _, reduce_op, group_name = ar0.args + reduce_dtype = ar0_val.dtype + device = ar0_val.device + + for n in ar_nodes: + ar_val = n.meta["val"] + assert ( + n.args[1] == reduce_op + and n.args[2] == group_name + and ar_val.device == device + and ar_val.dtype == reduce_dtype + ) + + ar_merge_fn = all_reduce_merge_fn_to_trace + + def create_trace_args(bucket_ins: list[torch.fx.Node]) -> tuple[Any, ...]: + return ( + pytree.tree_map(lambda node: node.meta["val"], bucket_ins), + group_name, + reduce_op, + reduce_dtype, + device, + ) + + return process_collective_bucket( + g, + ar_nodes, + ar_merge_fn, + create_trace_args, + insert_before=insert_before, + wait_insertion_point=wait_insertion_point, + ) + + +def merge_all_gather_bucket( + g: torch.fx.Graph, + ag_nodes: list[torch.fx.Node], + mode: BucketMode = "default", + insert_before: torch.fx.Node | None = None, + wait_insertion_point: torch.fx.Node | None = None, +) -> tuple[list[torch.fx.Node], dict[torch.fx.Node, torch.fx.Node]]: + from torch.distributed.distributed_c10d import _resolve_process_group + + ag0 = ag_nodes[0] + _, group_size, group_name = ag0.args + assert isinstance(group_name, str) + _ag_dtypes: list[torch.dtype] = [] # type: ignore[name-defined] + + for n in ag_nodes: + assert n.args[1] == group_size and n.args[2] == group_name + _ag_dtypes.append(n.meta["val"].dtype) + + bucket_dtype = pick_bucket_dtype(_ag_dtypes) + + # Choose merge function based on mode + ag_merge_fn = all_gather_merge_fn_to_trace + if mode is not None and "custom_ops" in mode: + ag_merge_fn = all_gather_merge_fn_to_trace_custom_ops # type: ignore[assignment] + + # Process bucket with lazy input collection + rank: int = dist.get_rank(_resolve_process_group(group_name)) + + def create_trace_args(bucket_ins: list[torch.fx.Node]) -> tuple[Any, ...]: + return ( + pytree.tree_map(lambda node: node.meta["val"], bucket_ins), + group_size, + group_name, + bucket_dtype, + _ag_dtypes, + rank, + ) + + return process_collective_bucket( + g, + ag_nodes, + ag_merge_fn, + create_trace_args, + wait_insertion_point=wait_insertion_point, + ) + + +def merge_reduce_scatter( + gm: torch.fx.GraphModule, + rs_buckets: list[list[torch.fx.Node]], + mode: BucketMode = "default", +) -> None: + """ + Merges specified buckets of reduce_scatter to joint reduce_scatter. + """ + with dynamo_timed("fx.bucketing.merge_reduce_scatter", log_pt2_compile_event=True): + trace_structured( + "artifact", + metadata_fn=lambda: { + "name": "fx_bucketing_passes_reduce_scatter_buckets", + "encoding": "string", + }, + payload_fn=lambda: str(rs_buckets), + ) + + g = gm.graph + + for rs_nodes in rs_buckets: + merge_reduce_scatter_bucket(g, rs_nodes, mode) + + +def merge_all_gather( + gm: torch.fx.GraphModule, + ag_buckets: list[list[torch.fx.Node]], + mode: BucketMode = "default", +) -> None: + """ + Merges specified buckets of all_gather to joint all_gather. + """ + with dynamo_timed("fx.bucketing.merge_all_gather", log_pt2_compile_event=True): + trace_structured( + "artifact", + metadata_fn=lambda: { + "name": "fx_bucketing_passes_all_gather_buckets", + "encoding": "string", + }, + payload_fn=lambda: str(ag_buckets), + ) + + g = gm.graph + + for ag_nodes in ag_buckets: + merge_all_gather_bucket(g, ag_nodes, mode) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/control_dependencies.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/control_dependencies.py new file mode 100644 index 0000000000000000000000000000000000000000..c6e3ca625c5d97bcd0e52508ed084f5bf82b2bb2 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/control_dependencies.py @@ -0,0 +1,226 @@ +# mypy: allow-untyped-defs +""" +Effect ordering pass for inductor. + +This pass adds ordering dependencies to FX graphs using the control_deps HOP +for precise control over scheduling constraints. When you need exact ordering between +operations (e.g., collective_start -> mm -> wait), this pass wraps operations +with control_deps to make dependencies explicit. +""" + +from typing import Any + +import torch.fx as fx +from torch._higher_order_ops.utils import register_fake +from torch._ops import HigherOrderOperator +from torch.utils._ordered_set import OrderedSet + + +class ControlDeps(HigherOrderOperator): + """ + Higher-order operator that enforces ordering by making dependencies explicit. + + Schema: control_deps(additional_deps, target, *args, **kwargs) -> result + where: + - additional_deps: tuple of tensors that must be computed before this op + - subgraph: GraphModule containing the exact operation to execute + - args/kwargs: arguments for the target function + + This ensures all tensors in additional_deps are computed before the target + executes, creating explicit scheduling dependencies. + """ + + def __init__(self) -> None: + super().__init__("control_deps") + + def __call__(self, additional_deps, subgraph, *args, **kwargs): + """Call the operator with dependencies and subgraph. + + Args: + additional_deps: Tuple of tensors that must be computed first + subgraph: GraphModule containing the exact operation to execute + *args: Arguments to pass to the subgraph + """ + if not isinstance(additional_deps, (tuple, list)): + raise TypeError( + f"additional_deps must be tuple/list, got {type(additional_deps).__name__}" + ) + if not (isinstance(subgraph, fx.GraphModule) or callable(subgraph)): + raise TypeError( + f"subgraph must be GraphModule or callable, got {type(subgraph).__name__}" + ) + return super().__call__(additional_deps, subgraph, *args, **kwargs) + + +control_deps = ControlDeps() + + +# Register fake implementation for tracing +@register_fake(control_deps) +def _(additional_deps, subgraph, *args, **kwargs): + """Fake tensor implementation - execute the subgraph.""" + return subgraph(*args, **kwargs) + + +def get_subgraph_name(gm: fx.GraphModule, name): + name = f"subgraph_{name}" + + if not hasattr(gm, name): + return name + + i = 0 + while hasattr(gm, f"{name}_{i}"): + i += 1 + + return f"{name}_{i}" + + +def preserve_node_ordering( + graph: fx.Graph, + additional_deps_map: dict[fx.Node, OrderedSet[fx.Node]], + verbose: bool = False, +) -> None: + """ + Preserve node ordering using control_deps HOP with subgraph. + + This function wraps operations with control_deps that: + 1. Makes additional dependencies explicit (first argument) + 2. Creates a subgraph internally to preserve the exact original operation + 3. Preserves the original node names + + Args: + graph: The FX graph to modify + additional_deps_map: Mapping from dependent nodes to their dependencies + verbose: If True, print debug information + """ + if not additional_deps_map: + return + + # Track replacements so we can update dependencies + replacements: dict[fx.Node, fx.Node] = {} + + # Process each node that needs additional dependencies + for dependent_node, dep_nodes in additional_deps_map.items(): + assert dependent_node.op == "call_function", dependent_node.op + + original_name = dependent_node.name + original_args = dependent_node.args + original_kwargs = dependent_node.kwargs + original_meta = dependent_node.meta.copy() + + updated_dep_nodes = [replacements.get(dep, dep) for dep in dep_nodes] + + # Create a subgraph that preserves the exact original operation + subgraph_module = _create_subgraph_for_node(graph, dependent_node) + + owning_mod = graph.owning_module + assert owning_mod is not None + subgraph_attr_name = get_subgraph_name(owning_mod, original_name) + setattr(graph.owning_module, subgraph_attr_name, subgraph_module) + + # Create control_deps call with: + # 1. Additional dependencies as first arg (explicit) + # 2. Subgraph via get_attr (like b2b gemm pass) + # 3. Original arguments (only fx.Node args and kwargs are passed) + with graph.inserting_before(dependent_node): + # Create get_attr node for the subgraph + get_subgraph = graph.get_attr(subgraph_attr_name) + + # add additional args + node_args = [a for a in original_args if isinstance(a, fx.Node)] + for value in original_kwargs.values(): + if isinstance(value, fx.Node): + node_args.append(value) + + # Create with temporary name first + ordered_node = graph.call_function( + control_deps, + args=( + tuple(updated_dep_nodes), # additional_deps + get_subgraph, # subgraph via get_attr (like b2b gemm) + *node_args, # original node arguments (from both args and kwargs) + ), + kwargs={}, + name=f"__temp_{original_name}", # Temporary name to avoid conflict + ) + + # Copy metadata from original node + ordered_node.meta = original_meta + # this will be constrained on the target node in subgraph if it exists + ordered_node.meta.pop("eager_input_vals", None) + + # Replace all uses of the original node with the ordered version + dependent_node.replace_all_uses_with(ordered_node) + + # Remove the original node from the graph + graph.erase_node(dependent_node) + + # Now rename the ordered node to the original name + ordered_node.name = original_name # PRESERVE ORIGINAL NAME + + # Track the replacement for future dependencies + replacements[dependent_node] = ordered_node + + +def _create_subgraph_for_node(graph: fx.Graph, node: fx.Node) -> fx.GraphModule: + """ + Create a subgraph that exactly recreates a node's operation. + + The subgraph takes only the fx.Node arguments and recreates the operation + with the exact target, args structure, and kwargs. + + Args: + graph: The parent graph + node: The node to wrap in a subgraph + + Returns: + A GraphModule containing the subgraph + """ + # Get the owning module + # torch.distributed.breakpoint(0) + owning_module = graph.owning_module + + # Create a new graph for the subgraph + subgraph = fx.Graph(owning_module) + + new_args: list[Any] = [] + placeholder_idx = 0 + for _, arg in enumerate(node.args): + if not isinstance(arg, fx.Node): + new_args.append(arg) + continue + + placeholder = subgraph.placeholder(f"arg_{placeholder_idx}") + placeholder_idx += 1 + if "val" in arg.meta: + placeholder.meta.update(arg.meta) + new_args.append(placeholder) # type: ignore[arg-type] + + new_kwargs: dict[str, Any] = {} + for key, value in node.kwargs.items(): + if not isinstance(value, fx.Node): + new_kwargs[key] = value + continue + + placeholder = subgraph.placeholder(f"kwarg_{key}") + if "val" in value.meta: + placeholder.meta.update(value.meta) + + new_kwargs[key] = placeholder # type: ignore[assignment] + + # Recreate the exact original operation in the subgraph + assert callable(node.target) + result = subgraph.call_function( + node.target, + tuple(new_args), + new_kwargs, # type: ignore[arg-type] + ) + + # Copy metadata from the original node + result.meta.update(node.meta) + + out = subgraph.output(result) + if "val" in result.meta: + out.meta["val"] = result.meta["val"] + + return fx.GraphModule(owning_module, subgraph) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/ddp_fusion.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/ddp_fusion.py new file mode 100644 index 0000000000000000000000000000000000000000..44314b912786f9537286108dc33c94905a5db0de --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/ddp_fusion.py @@ -0,0 +1,589 @@ +# Owner(s): ["oncall: distributed"] +import collections +import inspect +import logging +import math +import operator +from collections.abc import Callable, Generator +from dataclasses import dataclass +from functools import partial +from typing import Any, cast + +import torch +import torch.fx as fx +from torch._dynamo.utils import counters +from torch.fx.passes.graph_transform_observer import GraphTransformObserver +from torch.fx.passes.shape_prop import _extract_tensor_metadata, TensorMetadata +from torch.utils._ordered_set import OrderedSet +from torch.utils._pytree import tree_flatten, tree_map, tree_unflatten + +from ..fx_utils import get_fake_args_kwargs +from ..virtualized import V + + +aten = torch.ops.aten +logger: logging.Logger = logging.getLogger("comm_fusion") + + +def move_block_after(block: list[fx.Node], target_node: fx.Node) -> None: + for node in block: + target_node.append(node) + target_node = node + + +def move_block_before(block: list[fx.Node], target_node: fx.Node) -> None: + for node in block: + target_node.prepend(node) + target_node = node + + +def call_function( + graph: fx.Graph, + target: str | Callable[..., Any], + args: tuple[fx.node.Argument, ...] | None = None, + kwargs: dict[str, fx.node.Argument] | None = None, +) -> fx.Node: + # We accept target as a str to avoid typing error as the type of + # a node.target is str | Callable[..., Any]. + # This also allows us to avoid writing check for every call. + if isinstance(target, str): + raise RuntimeError(f"Call function should not get a str target {target=}") + node = graph.call_function(target, args, kwargs) + _, args, kwargs = get_fake_args_kwargs(node) + with V.fake_mode: + node.meta["val"] = target(*args, **kwargs) + # node.meta["val"] may be a container. So we use tree_map here + # to recursively extract the tensor metadata. + node.meta["tensor_meta"] = tree_map( + _extract_tensor_metadata, (node.meta["val"],) + )[0] + return node + + +@dataclass(unsafe_hash=True) +class CommBlock: + shape: torch.Size | list[torch.Size] + node_list: list[fx.Node] + inputs: list[fx.Node] + wait_nodes: list[fx.Node] + comm_node: fx.Node + outputs: OrderedSet[fx.Node] + + +def get_comm_block(comm_node: fx.Node) -> CommBlock | None: + """ + Given a collective node (e.g., allreduce), find out all the nodes belong to + this communication. + + Args: + comm_node(fx.Node): The target communication/collective node. + Returns: + The CommBlock that encapsulates the related nodes (e.g., wait_node) of + the given comm_node. + """ + node_list = [] + wait_nodes = [] + inputs, _ = tree_flatten((comm_node.args, comm_node.kwargs)) + input_nodes = [inp for inp in inputs if isinstance(inp, fx.Node)] + # If the users of the wait node are following items, we consinder them + # to be a part of the output. + intermediate_outputs = ("split", "reshape", "getitem", "detach", "alias") + + first_user = next(iter(comm_node.users)) + if ( + len(comm_node.users) == 1 + and first_user.target is torch.ops._c10d_functional.wait_tensor.default + ): + # Collective with only one output + node_list = [comm_node, first_user] + wait_nodes.append(first_user) + elif len(comm_node.users) > 1 and first_user.target is operator.getitem: + # Collective with only more than one output + node_list.append(comm_node) + for user in comm_node.users: + if user.target != operator.getitem: + return None + if len(user.users) != 1: + return None + wait_node = next(iter(user.users)) + if wait_node.target != torch.ops._c10d_functional.wait_tensor.default: + return None + wait_nodes.append(wait_node) + node_list.append(user) + node_list.extend(wait_nodes) + else: + return None + + # Identify all the outputs of this collective block. + outputs = OrderedSet[fx.Node]() + nodes = collections.deque(wait_nodes) + while nodes: + node = nodes.popleft() + for user in node.users: + if isinstance(user, fx.Node) and user.name.startswith(intermediate_outputs): + nodes.append(user) + node_list.append(user) + else: + outputs.add(node) + break + + tensor_meta = input_nodes[0].meta["tensor_meta"] + shape: torch.Size | list[torch.Size] + if isinstance(tensor_meta, TensorMetadata): + shape = tensor_meta.shape + elif isinstance(tensor_meta, (list, tuple)): + shape = [tm.shape for tm in tensor_meta] + else: + logger.warning("Unexpected type of tensor_meta %s", type(tensor_meta)) + return None + + return CommBlock( + shape=shape, + node_list=node_list, + wait_nodes=wait_nodes, + comm_node=comm_node, + inputs=input_nodes, + outputs=outputs, + ) + + +def get_all_comm_blocks( + graph: fx.Graph, + comm_ops: tuple[torch._ops.OpOverload, ...], + comm_filter: Callable[..., bool] | None = None, +) -> list[CommBlock]: + if comm_filter is None: + + def always_true(comm_block: CommBlock) -> bool: + return True + + comm_filter = always_true + + blocks = [] + for node in graph.nodes: + if node.target not in comm_ops: + continue + comm_block = get_comm_block(node) + if comm_block is not None and comm_filter(comm_block): + blocks.append(comm_block) + return blocks + + +def _fuse_allreduce_by_concat( + graph: fx.Graph, + last_input_node: fx.Node, + all_input_nodes: list[fx.Node], + last_comm_block: CommBlock, +) -> CommBlock: + """Given a list of inputs in order, create a fused allreduce using concat.""" + # Flatten all the inputs to the all_reduce nodes. + with graph.inserting_after(last_input_node): + cat_inputs = [] + for input_node in all_input_nodes: + assert isinstance(input_node.args[0], fx.Node) + input_node = input_node.args[0] + cat_inputs.append( + call_function(graph, aten.flatten.using_ints, (input_node,)) + ) + + # Concat all the flattened nodes. + with graph.inserting_after(cat_inputs[0]): + cat_node = call_function(graph, aten.cat, (cat_inputs,)) + + # Insert the fused div node and remove the input div nodes. + # This is an optimization and is not mandatory for fusion. + divisors = [div.args[1] for div in all_input_nodes] + assert all(divisor == divisors[0] for divisor in divisors) + with graph.inserting_after(cat_node): + div_node = call_function(graph, last_input_node.target, (cat_node, divisors[0])) + + # Create a new Comm/all_reduce node. + last_comm_node = last_comm_block.comm_node + last_wait_node = last_comm_block.wait_nodes[0] + with graph.inserting_after(div_node): + flatten_args, spec = tree_flatten((last_comm_node.args, last_comm_node.kwargs)) + flatten_args[0] = div_node + args, kwargs = tree_unflatten(flatten_args, spec) + fused_comm_node = call_function(graph, last_comm_node.target, args, kwargs) + + # Create a new Wait node. + with graph.inserting_after(fused_comm_node): + flatten_args, spec = tree_flatten((last_wait_node.args, last_wait_node.kwargs)) + flatten_args[0] = fused_comm_node + args, kwargs = tree_unflatten(flatten_args, spec) + fused_wait_node = call_function(graph, last_wait_node.target, args, kwargs) + + # Move the fused all_reduce and its args to right after the input node + nodes_to_move = cat_inputs + [cat_node, div_node, fused_comm_node, fused_wait_node] + # pyrefly: ignore [bad-argument-type] + move_block_after(nodes_to_move, last_input_node) + + return CommBlock( + shape=cast(TensorMetadata, cat_node.meta.get("tensor_meta")).shape, + node_list=[fused_comm_node, fused_wait_node], + wait_nodes=[fused_wait_node], + comm_node=fused_comm_node, + inputs=[div_node], + outputs=OrderedSet([fused_wait_node]), + ) + + +def _fuse_with_coalesced_op( + graph: fx.Graph, + last_input_node: fx.Node, + all_input_nodes: list[fx.Node], + last_comm_block: CommBlock, +) -> CommBlock: + """Given a list of inputs in order, create a fused allreduce by coalesced.""" + last_comm_node = last_comm_block.comm_node + last_wait_node = last_comm_block.wait_nodes[0] + + # Insert the fused div node and remove the input div nodes. + # This is an optimization and is not mandatory for fusion. + dividends = [div.args[0] for div in all_input_nodes] + divisors = [div.args[1] for div in all_input_nodes] + assert all(divisor == divisors[0] for divisor in divisors) + with graph.inserting_before(last_input_node): + last_input_node = call_function( + graph, aten._foreach_div.Scalar, (dividends, divisors[0]) + ) + input_node = last_input_node + + # Create a new Comm/all_reduce_coalesced node. + with graph.inserting_after(last_comm_node): + flatten_args, spec = tree_flatten((last_comm_node.args, last_comm_node.kwargs)) + flatten_args[0] = input_node + args, kwargs = tree_unflatten(flatten_args, spec) + fused_comm_node = call_function( + graph, torch.ops._c10d_functional.all_reduce_coalesced.default, args, kwargs + ) + + # Create a new wait node. + getitem_nodes = [] + wait_nodes = [] + flatten_args, spec = tree_flatten((last_wait_node.args, last_wait_node.kwargs)) + for idx in range(len(all_input_nodes)): + with graph.inserting_after(fused_comm_node): + gi_node = call_function(graph, operator.getitem, (fused_comm_node, idx)) + getitem_nodes.append(gi_node) + flatten_args[0] = gi_node + args, kwargs = tree_unflatten(flatten_args, spec) + with graph.inserting_after(gi_node): + wait_nodes.append(call_function(graph, last_wait_node.target, args, kwargs)) + + # Move the new all_reduce_coalesced and its args to right after the input node + nodes_to_move = [fused_comm_node] + getitem_nodes + wait_nodes + move_block_after(nodes_to_move, last_input_node) + + return CommBlock( + shape=[ + tm.shape + for tm in cast( + list[TensorMetadata], fused_comm_node.meta.get("tensor_meta") + ) + ], + node_list=[fused_comm_node] + getitem_nodes + wait_nodes, + wait_nodes=wait_nodes, + comm_node=fused_comm_node, + inputs=[input_node], + outputs=OrderedSet(wait_nodes), + ) + + +def _scatter_fused_allreduce_waits( + graph: fx.Graph, + fused_comm_block: CommBlock, + orig_comm_blocks: list[CommBlock], + node_indices: dict[fx.Node, int], + split_and_reshape: bool = True, +) -> None: + """ + Scatters the result of the fused communication node to the original users. + If the fused method is concat splitting the output and reshape will be inserted, + before inserting getitem. Otherwise getitem will be used as the users of the + wait node. + """ + + # Before we mass up the order, we need to get the index of the last wait node + # in orig_comm_blocks. This index will be later used to determine what users + # nodes need to be move to maintain a correct topological sort order. + last_wait_node_idx = 0 + # pyrefly: ignore [bad-assignment] + for node in graph.nodes: + last_wait_node_idx = max( + node_indices.get(node, last_wait_node_idx), last_wait_node_idx + ) + if node == orig_comm_blocks[-1].wait_nodes[0]: + break + + if split_and_reshape: + fused_wait_node = fused_comm_block.wait_nodes[0] + with graph.inserting_after(fused_wait_node): + split_node = call_function( + graph, + aten.split, + ( + fused_wait_node, + [math.prod(cast(list[int], cb.shape)) for cb in orig_comm_blocks], + ), + ) + with graph.inserting_after(split_node): + fused_outputs = [] + for idx, comm_block in enumerate(orig_comm_blocks): + split_idx_node = call_function( + graph, operator.getitem, (split_node, idx) + ) + with graph.inserting_after(split_idx_node): + fused_outputs.append( + call_function( + graph, aten.reshape, (split_idx_node, comm_block.shape) + ) + ) + else: + fused_outputs = fused_comm_block.wait_nodes + + # Scatter the fused outputs. + incorrect_order_nodes = [] + for comm_block, fused_output in zip(orig_comm_blocks, fused_outputs): + # Some descendant users of the orig_comm_blocks may be scheduled before + # the fused all_reduce. For example, the user nodes of the very first + # all_reduce may be scheduled before the second all_reduce. Since the + # fused all_reduce is inserted right after the last all_reduce, the + # order can be wrong. + # `incorrect_order_nodes` records these nodes. + + orig_wait = comm_block.wait_nodes[0] + nodes = collections.deque(list(orig_wait.users)) + while nodes: + user_node = nodes.popleft() + if not isinstance(user_node, fx.Node): + continue + # pyrefly: ignore [unsupported-operation] + if node_indices[user_node] < last_wait_node_idx: + incorrect_order_nodes.append(user_node) + nodes.extend(list(user_node.users)) + + orig_wait.replace_all_uses_with(fused_output) + + last_fused_result = fused_outputs[0] + fused_outputs_set = OrderedSet(fused_outputs) + for node in graph.nodes: + if node in fused_outputs_set: + last_fused_result = node + + # Move the incorrect_order_nodes to right after the last fused_result. + incorrect_order_nodes = sorted( + incorrect_order_nodes, key=lambda node: node_indices[node] + ) + move_block_after(incorrect_order_nodes, last_fused_result) + + +def _fuse_allreduce( + graph: fx.Graph, + comm_blocks: list[CommBlock], + node_indices: dict[fx.Node, int], + use_concat: bool, +) -> CommBlock: + """Given a list of allreduce CommBlock, fuse the CommBlocks into one CommBlock.""" + + if len(comm_blocks) == 1: + return comm_blocks[0] + + # Find the last input node of all the CommBlocks. This node will be served + # as the inserting point of the new collective op. + last_input_node = comm_blocks[0].inputs[0] + last_input_index = -1 + all_input_nodes = [] + for comm_block in comm_blocks: + input_node = comm_block.inputs[0] + all_input_nodes.append(input_node) + index = node_indices[input_node] + if index >= last_input_index: + assert index != last_input_index + last_input_node = input_node + last_input_index = index + + if use_concat: + fused_comm_block = _fuse_allreduce_by_concat( + graph, last_input_node, all_input_nodes, comm_blocks[-1] + ) + else: + fused_comm_block = _fuse_with_coalesced_op( + graph, last_input_node, all_input_nodes, comm_blocks[-1] + ) + + _scatter_fused_allreduce_waits( + graph, fused_comm_block, comm_blocks, node_indices, split_and_reshape=use_concat + ) + + for comm_block in comm_blocks: + for wait in comm_block.wait_nodes: + graph.erase_node(wait) + graph.erase_node(comm_block.comm_node) + graph.eliminate_dead_code() + + return fused_comm_block + + +def _bucket_size_fusion( + graph: fx.Graph, comm_blocks: list[CommBlock], bucket_size_mb: int +) -> Generator[list[CommBlock], None, None]: + MB = 1024**2 + bucket_size = 1 * MB + bucket_cap_size = bucket_size_mb * MB + curr_size = 0 + curr_blocks = [] + + count = 0 + fuse_count = 0 + for i, block in enumerate(comm_blocks): + curr_blocks.append(block) + itemsize = block.comm_node.meta["tensor_meta"].dtype.itemsize + curr_size += cast(torch.Size, block.shape).numel() * itemsize + count += 1 + if curr_size < bucket_size and i != len(comm_blocks) - 1: + continue + + fuse_count += 1 + if torch.distributed.get_rank() == 0: + logger.info( + "DDP bucketing: block%d, count=%d, curr_size=%d, bucket_size=%d", + fuse_count, + count, + curr_size, + bucket_size, + ) + + # Set the debug counters + counters["inductor"]["ddp_buckets"] = fuse_count + yield curr_blocks + + bucket_size = bucket_cap_size + curr_blocks = [] + curr_size = 0 + count = 0 + + +def _fuse_ddp_communication( + graph: fx.Graph, algorithm_fn: Callable[..., Any], fusion_fn: Callable[..., Any] +) -> None: + for output in reversed(graph.nodes): + if output.op == "output": + break + + def ddp_reducer_filter(block: CommBlock) -> bool: + if ( + not isinstance(block.comm_node.args[0], fx.Node) + or block.comm_node.args[0].target != aten.div.Tensor + ): + return False + + if len(block.wait_nodes[0].users) != 1: + # gradient/wait node should only be used by one user + return False + + # Two cases: + # 1. gradient/wait node should be directly used by the output + # if gradient is None before bwd. + # 2. gradient/wait node should be directly used by copy_. + if ( + output not in block.wait_nodes[0].users + and next(iter(block.wait_nodes[0].users)).target != aten.copy_.default + ): + return False + + return True + + ops = ( + torch.ops._c10d_functional.all_reduce_.default, + torch.ops._c10d_functional.all_reduce.default, + ) + comm_blocks = get_all_comm_blocks(graph, ops, comm_filter=ddp_reducer_filter) + node_indices = {node: i for i, node in enumerate(graph.nodes)} + + for block in algorithm_fn(graph, comm_blocks): + fusion_fn(graph, block, node_indices) + + +def fuse_ddp_with_coalesced_op(graph: fx.Graph, bucket_size_mb: int) -> None: + _fuse_ddp_communication( + graph, + partial(_bucket_size_fusion, bucket_size_mb=bucket_size_mb), + partial(_fuse_allreduce, use_concat=False), + ) + + +def fuse_ddp_with_concat_op(graph: fx.Graph, bucket_size_mb: int) -> None: + _fuse_ddp_communication( + graph, + partial(_bucket_size_fusion, bucket_size_mb=bucket_size_mb), + partial(_fuse_allreduce, use_concat=True), + ) + + +def schedule_comm_wait(graph: fx.Graph) -> None: + """ + Delay the execution of wait tensors of allreduce until its first user. + + This algorithm considers the intermediate users, like split, getitem, + of the wait node and schedule those intermediate users as well. + This will result in a better overlapping result. + """ + ops = ( + torch.ops._c10d_functional.all_reduce_.default, + torch.ops._c10d_functional.all_reduce.default, + torch.ops._c10d_functional.all_reduce_coalesced.default, + torch.ops._c10d_functional.all_reduce_coalesced_.default, + ) + comm_blocks = get_all_comm_blocks(graph, ops) + if not comm_blocks: + return + + # Find all the end users. + allreduce_users = OrderedSet[fx.Node]() + for allreduce in comm_blocks: + for output in allreduce.outputs: + allreduce_users.update(output.users) + + node_indices = {node: i for i, node in enumerate(graph.nodes)} + for allreduce in comm_blocks: + # Find the earliest/first user -- target_node. + assert len(allreduce.outputs) >= 1, ( + f"Found a allreduce that has zero outputs/users -- {allreduce}." + ) + # Initialize the target node to avoid typing issues. + target_node = next(iter(next(iter(allreduce.outputs)).users)) + target_node_index = 2**31 + for user in (user for output in allreduce.outputs for user in output.users): + index = node_indices[user] + if index < target_node_index: + target_node = user + target_node_index = index + + # Move wait nodes and all the subsequent nodes in the comm_block to + # before the first user -- target_node. + wait_idx = -1 + for wait_idx, node in enumerate(allreduce.node_list): + if node == allreduce.wait_nodes[0]: + break + assert wait_idx >= 0 + move_block_before(allreduce.node_list[wait_idx:], target_node) + + +def fuse_ddp_communication( + graph: fx.Graph, passes: list[Callable[..., None] | str], bucket_size_mb: int +) -> None: + for i, pa in enumerate(passes): + with GraphTransformObserver( + graph.owning_module, f"fuse_ddp_communication_pass_{i}" + ): + if isinstance(pa, str): + func = globals()[pa] + else: + func = pa + if "bucket_size_mb" in OrderedSet( + v.name for v in inspect.signature(func).parameters.values() + ): + func(graph, bucket_size_mb=bucket_size_mb) + else: + func(graph) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/decompose_mem_bound_mm.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/decompose_mem_bound_mm.py new file mode 100644 index 0000000000000000000000000000000000000000..3613ab1ed17b5e35815d1bca359b94b29b511abc --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/decompose_mem_bound_mm.py @@ -0,0 +1,285 @@ +# mypy: allow-untyped-defs +import logging + +import torch +from torch import Tensor +from torch._dynamo.utils import counters, is_node_meta_valid +from torch.fx.experimental.symbolic_shapes import ( + statically_known_false, + statically_known_true, +) + +from .. import config +from ..pattern_matcher import Arg, CallFunction, Match, register_graph_pattern +from .split_cat import construct_pattern_matcher_pass + + +aten = torch.ops.aten +log = logging.getLogger(__name__) + +# TODO: need a better strategy for decomposing mm +# The following two constants are for CUDA device only +MIN_FIRST_DIMENSION_DECOMPOSITION = 10240 +MAX_OTHER_DIMENSION_DECOMPOSITION = 32 +# The following two constants are for CPU device only +CPU_MAX_FIRST_DIMENSION_DECOMPOSITION = 1 +CPU_MAX_OTHER_DIMENSION_DECOMPOSITION = 2048 + +min_first_dimension_decomposition = MIN_FIRST_DIMENSION_DECOMPOSITION +max_other_dimension_decomposition = MAX_OTHER_DIMENSION_DECOMPOSITION +cpu_max_first_dimension_decomposition = CPU_MAX_FIRST_DIMENSION_DECOMPOSITION +cpu_max_other_dimension_decomposition = CPU_MAX_OTHER_DIMENSION_DECOMPOSITION +if "decompose_mm_pass" in config.post_grad_fusion_options: + min_first_dimension_decomposition = config.post_grad_fusion_options[ + "decompose_mm_pass" + ].get("min_first_dimension_decomposition", MIN_FIRST_DIMENSION_DECOMPOSITION) + max_other_dimension_decomposition = config.post_grad_fusion_options[ + "decompose_mm_pass" + ].get("max_other_dimension_decomposition", MAX_OTHER_DIMENSION_DECOMPOSITION) + cpu_max_first_dimension_decomposition = config.post_grad_fusion_options[ + "decompose_mm_pass" + ].get( + "cpu_max_first_dimension_decomposition", CPU_MAX_FIRST_DIMENSION_DECOMPOSITION + ) + cpu_max_other_dimension_decomposition = config.post_grad_fusion_options[ + "decompose_mm_pass" + ].get( + "cpu_max_other_dimension_decomposition", CPU_MAX_OTHER_DIMENSION_DECOMPOSITION + ) + + +def check_device(a: Tensor, b: Tensor, device="cuda") -> bool: + return (a.device.type == b.device.type) and (b.device.type == device) + + +def realize_inputs(inputs: list[torch.fx.Node]): + for inp in inputs: + if isinstance(inp, torch.fx.node.Node): + inp.meta["inductor_realize_to_strides"] = True + + +def should_decompose_bmm(mat1, mat2) -> bool: + if is_node_meta_valid(mat1) and is_node_meta_valid(mat2): + mat1 = mat1.meta["val"] + mat2 = mat2.meta["val"] + else: + return False + if len(mat1.shape) != 3 or len(mat2.shape) != 3: + return False + if check_device(mat1, mat2, device="cuda") or check_device( + mat1, mat2, device="xpu" + ): + if mat1.shape[0] < min_first_dimension_decomposition: + return False + # 2 of m, n, k must be <= MAX_OTHER_DIMENSION_DECOMPOSITION + # use bool() to deal with BooleanAtom type + if ( + bool(mat1.shape[1] < max_other_dimension_decomposition) + + bool(mat1.shape[2] < max_other_dimension_decomposition) + + bool(mat2.shape[2] < max_other_dimension_decomposition) + < 2 + ): + return False + return True + elif check_device(mat1, mat2, device="cpu"): + if ( + mat1.shape[0] <= cpu_max_first_dimension_decomposition + and mat2.shape[0] <= cpu_max_first_dimension_decomposition + ): + return True + return False + + +def should_decompose_mm(mat1, mat2) -> bool: + """ + Determines whether matrix multiplication (mm) should be decomposed into pointwise operations + based on the input matrices' metadata, shapes, device placement, and configuration options. + Args: + mat1: The first matrix operand. Expected to be an object with a `.meta` attribute containing + a "val" key, or a tensor-like object with a `.shape` attribute. + mat2: The second matrix operand. Same requirements as `mat1`. + Returns: + bool: True if the matrix multiplication should be decomposed according to the following logic: + - Both inputs must have valid node metadata. + - Both matrices must be 2-dimensional. + - If the configuration option `skip_dynamic_shape_dim_check` is False: + - Decomposition is only considered for statically-shaped matrices. + - For CUDA devices: `mat1.shape[0]` must be at least `min_first_dimension_decomposition`, + and both dimensions of `mat2` must be less than `max_other_dimension_decomposition`. + - For CPU devices: All relevant dimensions must be less than or equal to their respective + CPU decomposition thresholds. + - If `skip_dynamic_shape_dim_check` is True: + - Decomposition is considered for dynamic shapes as well, using a combination of + `statically_known_true` and `statically_known_false` checks to handle uncertainty. + - The same dimension and device checks apply, but allow for dynamic/static uncertainty. + - Returns False if any of the above conditions are not met. + Notes: + - Relies on helper functions such as `is_node_meta_valid`, `check_device`, `statically_known_true`, + and `statically_known_false`, as well as configuration values like + `min_first_dimension_decomposition`, `max_other_dimension_decomposition`, etc. + - Designed for use in graph optimization or fusion passes where decomposing large or dynamic + matrix multiplications can improve performance or memory usage. + """ + if is_node_meta_valid(mat1) and is_node_meta_valid(mat2): + mat1 = mat1.meta["val"] + mat2 = mat2.meta["val"] + else: + return False + if len(mat1.shape) != 2 or len(mat2.shape) != 2: + return False + # case 1: we skip decompose mm if the input is dynamic shape + if not config.post_grad_fusion_options["decompose_mm_pass"].get( + "skip_dynamic_shape_dim_check", False + ): + return ( + ( + check_device(mat1, mat2, device="cuda") + or check_device(mat1, mat2, device="xpu") + ) + and statically_known_true( + mat1.shape[0] >= min_first_dimension_decomposition + ) + and statically_known_true(mat2.shape[0] < max_other_dimension_decomposition) + and statically_known_true(mat2.shape[1] < max_other_dimension_decomposition) + ) or ( + check_device(mat1, mat2, device="cpu") + and statically_known_true( + mat1.shape[0] <= cpu_max_first_dimension_decomposition + ) + and statically_known_true( + mat2.shape[0] <= cpu_max_other_dimension_decomposition + ) + and statically_known_true( + mat2.shape[1] <= cpu_max_other_dimension_decomposition + ) + ) + # case 2: we decompose mm if the input is dynamic shape + else: + return ( + ( + check_device(mat1, mat2, device="cuda") + or check_device(mat1, mat2, device="xpu") + ) + and ( + statically_known_true( + mat1.shape[0] >= min_first_dimension_decomposition + ) + or not statically_known_false( + mat1.shape[0] >= min_first_dimension_decomposition + ) + ) + and ( + statically_known_true(mat2.shape[0] < max_other_dimension_decomposition) + or not statically_known_false( + mat2.shape[0] < max_other_dimension_decomposition + ) + ) + and ( + statically_known_true(mat2.shape[1] < max_other_dimension_decomposition) + or not statically_known_false( + mat2.shape[1] < max_other_dimension_decomposition + ) + ) + ) or ( + check_device(mat1, mat2, device="cpu") + and ( + statically_known_true( + mat1.shape[0] <= cpu_max_first_dimension_decomposition + ) + or not statically_known_false( + mat1.shape[0] <= cpu_max_first_dimension_decomposition + ) + ) + and ( + statically_known_true( + mat2.shape[0] <= cpu_max_other_dimension_decomposition + ) + or not statically_known_false( + mat2.shape[0] <= cpu_max_other_dimension_decomposition + ) + ) + and ( + statically_known_true( + mat2.shape[1] <= cpu_max_other_dimension_decomposition + ) + or not statically_known_false( + mat2.shape[1] <= cpu_max_other_dimension_decomposition + ) + ) + ) + + +def print_decompose_pattern(match: Match, inputs: list[torch.fx.Node]): + node = match.nodes[-1] + log.debug( + "Decompose %s with input shape: %s", + node.target, + ", ".join( + str(input.meta["val"].shape) if "val" in input.meta else "None" + for input in inputs + ), + ) + + +@register_graph_pattern( + CallFunction(aten.bmm, Arg(), Arg()), + pass_dict=construct_pattern_matcher_pass("decompose_mm_pass"), +) +def decompose_bmm(match: Match, mat1: torch.fx.Node, mat2: torch.fx.Node): + def repl(mat1, mat2): + return torch.sum(mat1[:, :, :, None] * mat2[:, None, :, :], dim=-2).to( + mat1.dtype + ) + + if should_decompose_bmm(mat1, mat2): + counters["inductor"]["decompose_bmm"] += 1 + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(repl, [mat1, mat2]) + print_decompose_pattern(match, [mat1, mat2]) + realize_inputs([mat1, mat2]) + return + + +@register_graph_pattern( + CallFunction(aten.addmm, Arg(), Arg(), Arg()), + pass_dict=construct_pattern_matcher_pass("decompose_mm_pass"), +) +def decompose_addmm( + match: Match, + mat1: torch.fx.Node, + mat2: torch.fx.Node, + mat3: torch.fx.Node, +): + def repl(mat1, mat2, mat3): + return ( + torch.sum(mat2[:, :, None] * mat3[None, :, :], dim=-2).to(mat2.dtype) + mat1 + ) + + if should_decompose_mm(mat2, mat3): + counters["inductor"]["decompose_addmm"] += 1 + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(repl, [mat1, mat2, mat3]) + print_decompose_pattern(match, [mat1, mat2, mat3]) + realize_inputs([mat1, mat2, mat3]) + return + + +@register_graph_pattern( + CallFunction(aten.mm, Arg(), Arg()), + pass_dict=construct_pattern_matcher_pass("decompose_mm_pass"), +) +def decompose_mm( + match: Match, + mat1: torch.fx.Node, + mat2: torch.fx.Node, +): + def repl(mat1, mat2): + return torch.sum(mat1[:, :, None] * mat2[None, :, :], dim=-2).to(mat1.dtype) + + if should_decompose_mm(mat1, mat2): + counters["inductor"]["decompose_mm"] += 1 + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(repl, [mat1, mat2]) + print_decompose_pattern(match, [mat1, mat2]) + realize_inputs([mat1, mat2]) + return diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/dedupe_symint_uses.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/dedupe_symint_uses.py new file mode 100644 index 0000000000000000000000000000000000000000..7b431c2f17117ae0c9e570072759a72417711562 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/dedupe_symint_uses.py @@ -0,0 +1,81 @@ +# mypy: allow-untyped-defs +from dataclasses import dataclass +from typing import Any + +import torch +from torch import SymBool, SymFloat, SymInt +from torch.types import py_sym_types +from torch.utils._ordered_set import OrderedSet + + +@dataclass +class _SymExprHash: + """ + Hash for a py_sym_types that will use the underlying sympy expression + """ + + sym_obj: SymInt | SymFloat | SymBool + + def __hash__(self) -> int: + return hash((type(self.sym_obj), self.sym_obj.node.expr)) + + def __eq__(self, value) -> bool: + if not isinstance(value, _SymExprHash): + return False + return self.sym_obj.node.expr == value.sym_obj.node.expr + + +class _SymHashingDict: + """ + Wrapper around a dictionary that will convert sym types to hash with _SymExprHash and reuse + existing sym proxies. + + SymPy hash is not always reliable so optimistically hash sympy expression, and if those fail, + fallback to symnodes. + """ + + def __init__(self): + self.sym_hash_dict = {} + + def __setitem__(self, key, value): + self.sym_hash_dict.__setitem__(self._wrap_to_sym_expr_hash(key), value) + + def __getitem__(self, key): + return self.sym_hash_dict[self._wrap_to_sym_expr_hash(key)] + + def __contains__(self, key): + return self._wrap_to_sym_expr_hash(key) in self.sym_hash_dict + + def get(self, key, default=None): + return self.sym_hash_dict.get(self._wrap_to_sym_expr_hash(key), default) + + def _wrap_to_sym_expr_hash(self, key): + return _SymExprHash(key) if isinstance(key, py_sym_types) else key + + +def dedupe_symints(graph: torch.fx.Graph): + """ + Dedupes sym ints in the graph to nodes are resolvable to symint graph inputs. + + We only dedupe from graph inputs to avoid adding a potential dependency in the forward + from the backward. + + """ + + sym_dict = _SymHashingDict() + resolvable_from_input_symints = OrderedSet[Any]() + + for node in graph.nodes: + val = node.meta.get("val", None) + if val is None or not isinstance(val, py_sym_types): + continue + + if node.op == "placeholder": + resolvable_from_input_symints.add(node) + sym_dict[val] = node + elif existing_node := sym_dict.get(val): + node.replace_all_uses_with(existing_node) + graph.erase_node(node) + elif all(n in resolvable_from_input_symints for n in node.all_input_nodes): + sym_dict[val] = node + resolvable_from_input_symints.add(node) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/efficient_conv_bn_eval.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/efficient_conv_bn_eval.py new file mode 100644 index 0000000000000000000000000000000000000000..72c853f7e5f66c980222244e822942d2fad640f5 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/efficient_conv_bn_eval.py @@ -0,0 +1,408 @@ +# mypy: allow-untyped-defs +import torch +import torch.nn as nn +from torch._dynamo.utils import counters +from torch._inductor import config as inductor_config +from torch.func import functional_call + +from ..pattern_matcher import ( + CallFunctionVarArgs, + CallModuleVarArgs, + Match, + register_graph_pattern, +) +from .pre_grad import efficient_conv_bn_eval_pass + + +def efficient_conv_bn_eval( + bn: nn.modules.batchnorm._BatchNorm, conv: nn.modules.conv._ConvNd, x: torch.Tensor +): + """ + Implementation based on https://arxiv.org/abs/2305.11624 + "Efficient ConvBN Blocks for Transfer Learning and Beyond" + It leverages the associative law between convolution and affine transform, + i.e., normalize (weight conv feature) = (normalize weight) conv feature. + It works for Eval mode of ConvBN blocks during validation, and can be used + for **training** as well, but only if one sets `bn.training=False`. It + reduces memory footprint and computation cost, at the cost of slightly + reduced numerical stability. + Args: + bn (nn.modules.batchnorm._BatchNorm): a BatchNorm module. + conv (nn.modules.conv._ConvNd): a conv module + x (torch.Tensor): Input feature map. + """ + + assert bn.running_var is not None + assert bn.running_mean is not None + + # These lines of code are designed to deal with various cases + # like bn without affine transform, and conv without bias + weight_on_the_fly = conv.weight + if conv.bias is not None: + bias_on_the_fly = conv.bias + else: + bias_on_the_fly = torch.zeros_like(bn.running_var) + + if bn.weight is not None: + bn_weight = bn.weight + else: + bn_weight = torch.ones_like(bn.running_var) + + if bn.bias is not None: + bn_bias = bn.bias + else: + bn_bias = torch.zeros_like(bn.running_var) + + # shape of [C_out, 1, 1, 1] in Conv2d + target_shape = [-1] + [1] * (conv.weight.ndim - 1) + if isinstance(conv, nn.modules.conv._ConvTransposeNd): + # for transposed conv, the C_out dimension should at index 1. + target_shape[:2] = [target_shape[1], target_shape[0]] + weight_coeff = torch.rsqrt(bn.running_var + bn.eps).reshape(target_shape) + # shape of [C_out, 1, 1, 1] in Conv2d + coefff_on_the_fly = bn_weight.view_as(weight_coeff) * weight_coeff + + # shape of [C_out, C_in, k, k] in Conv2d + weight_on_the_fly = weight_on_the_fly * coefff_on_the_fly + # shape of [C_out] in Conv2d + bias_on_the_fly = bn_bias + coefff_on_the_fly.flatten() * ( + bias_on_the_fly - bn.running_mean + ) + + input = x + params = {"weight": weight_on_the_fly, "bias": bias_on_the_fly} + output = functional_call(conv, params, input) + return output + + +def efficient_conv_bn_eval_decomposed( + bn_weight, + bn_bias, + bn_running_mean, + bn_running_var, + bn_eps, + conv: torch._ops.OpOverload, + conv_weight, + conv_bias, + x, + conv_remainging_args, +): + """ + Implementation based on https://arxiv.org/abs/2305.11624 + "Efficient ConvBN Blocks for Transfer Learning and Beyond" + It leverages the associative law between convolution and affine transform, + i.e., normalize (weight conv feature) = (normalize weight) conv feature. + It works for Eval mode of ConvBN blocks during validation, and can be used + for **training** as well, but only if one sets `bn.training=False`. It + reduces memory footprint and computation cost, at the cost of slightly + reduced numerical stability. + Args: + """ + assert bn_running_var is not None + + # These lines of code are designed to deal with various cases + # like bn without affine transform, and conv without bias + weight_on_the_fly = conv_weight + if conv_bias is not None: + bias_on_the_fly = conv_bias + else: + bias_on_the_fly = torch.zeros_like(bn_running_var) + + if bn_weight is None: + bn_weight = torch.ones_like(bn_running_var) + + if bn_bias is None: + bn_bias = torch.zeros_like(bn_running_var) + + # shape of [C_out, 1, 1, 1] in Conv2d + target_shape = [-1] + [1] * (conv_weight.ndim - 1) + if "conv_transpose" in conv.__str__(): + # for transposed conv, the C_out dimension should at index 1. + target_shape[:2] = [target_shape[1], target_shape[0]] + weight_coeff = torch.rsqrt(bn_running_var + bn_eps).reshape(target_shape) + # shape of [C_out, 1, 1, 1] in Conv2d + coefff_on_the_fly = bn_weight.view_as(weight_coeff) * weight_coeff + + # shape of [C_out, C_in, k, k] in Conv2d + weight_on_the_fly = weight_on_the_fly * coefff_on_the_fly + # shape of [C_out] in Conv2d + bias_on_the_fly = bn_bias + coefff_on_the_fly.flatten() * ( + bias_on_the_fly - bn_running_mean + ) + + input = x + return conv(*((input, weight_on_the_fly, bias_on_the_fly) + conv_remainging_args)) + + +@register_graph_pattern( + CallFunctionVarArgs( + [ + torch.nn.functional.batch_norm, + ] + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=efficient_conv_bn_eval_pass, + extra_check=lambda match: not inductor_config.freezing + and inductor_config.efficient_conv_bn_eval_fx_passes, +) +def efficient_conv_bn_eval_graph_transform_inlined(match: Match, *args, **kwargs): + bn_node = match.nodes[0] + graph = match.graph + assert len(bn_node.args) == 8 + + # We can only use efficient conv-bn for eval mode with track_running_stats + # bn_node.args is `training` + if bn_node.args[-3]: + return + + # Check if the input is Conv + input_node = bn_node.args[0] + + if input_node.op != "call_function": # type: ignore[union-attr] + return + + input_fn = input_node.target # type: ignore[arg-type, union-attr] + supported_convs = [ + torch._C._nn.linear, + torch.conv1d, + torch.conv2d, + torch.conv3d, + torch.conv_transpose1d, + torch.conv_transpose2d, + torch.conv_transpose3d, + ] + + if not any(input_fn is cls for cls in supported_convs): + return + + conv_node = input_node + # Output of conv is used by other nodes, cannot optimize + if len(conv_node.users) > 1: # type: ignore[union-attr] + return + + counters["inductor"]["efficient_conv_bn_eval"] += 1 + + with graph.inserting_before(bn_node): + # prepare args for the fused function + bn_running_mean = bn_node.args[1] + bn_running_var = bn_node.args[2] + bn_weight = bn_node.args[3] + bn_bias = bn_node.args[4] + bn_eps = bn_node.args[7] + assert len(conv_node.args) >= 2 # type: ignore[union-attr] + conv_input = conv_node.args[0] # type: ignore[union-attr] + conv_weight = conv_node.args[1] # type: ignore[union-attr] + conv_bias = conv_node.args[2] if len(conv_node.args) >= 3 else None # type: ignore[union-attr] + conv_remainging_args = conv_node.args[3:] # type: ignore[union-attr] + args = ( + bn_weight, + bn_bias, + bn_running_mean, + bn_running_var, + bn_eps, + conv_node.target, # type: ignore[union-attr] + conv_weight, + conv_bias, + conv_input, + conv_remainging_args, + ) + + # create a new node + new_node = graph.create_node( + op="call_function", + target=efficient_conv_bn_eval_decomposed, + args=args, # type: ignore[arg-type] + name="efficient_conv_bn_eval", + ) + + # this node replaces the original conv + bn, and therefore + # should replace the uses of bn_node + bn_node.replace_all_uses_with(new_node) + # take care of the deletion order: + # delete bn_node first, and then conv_node + graph.erase_node(bn_node) + graph.erase_node(conv_node) # type: ignore[arg-type] + + return + + +@register_graph_pattern( + CallFunctionVarArgs( + [ + torch.ops.aten.batch_norm.default, + ] + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=efficient_conv_bn_eval_pass, + extra_check=lambda match: not inductor_config.freezing + and inductor_config.efficient_conv_bn_eval_fx_passes, +) +def efficient_conv_bn_eval_graph_transform_decomposed(match: Match, *args, **kwargs): + bn_node = match.nodes[0] + graph = match.graph + assert len(bn_node.args) == 9 + + # We can only use efficient conv-bn for eval mode with track_running_stats + # bn_node.args is `training` + if bn_node.args[-4]: + return + + # Check if the input is Conv + input_node = bn_node.args[0] + + if input_node.op != "call_function": # type: ignore[union-attr] + return + + input_fn = input_node.target # type: ignore[arg-type, union-attr] + supported_convs = [ + torch.ops.aten.linear.default, + torch.ops.aten.conv1d.default, + torch.ops.aten.conv2d.default, + torch.ops.aten.conv3d.default, + torch.ops.aten.conv_transpose1d.default, + torch.ops.aten.conv_transpose2d.input, + torch.ops.aten.conv_transpose3d.input, + ] + + if not any(input_fn is cls for cls in supported_convs): + return + + conv_node = input_node + # Output of conv is used by other nodes, cannot optimize + if len(conv_node.users) > 1: # type: ignore[union-attr] + return + + counters["inductor"]["efficient_conv_bn_eval"] += 1 + + with graph.inserting_before(bn_node): + # prepare args for the fused function + bn_weight = bn_node.args[1] + bn_bias = bn_node.args[2] + bn_running_mean = bn_node.args[3] + bn_running_var = bn_node.args[4] + bn_eps = bn_node.args[7] + assert len(conv_node.args) >= 2 # type: ignore[union-attr] + conv_input = conv_node.args[0] # type: ignore[union-attr] + conv_weight = conv_node.args[1] # type: ignore[union-attr] + conv_bias = conv_node.args[2] if len(conv_node.args) >= 3 else None # type: ignore[union-attr] + conv_remainging_args = conv_node.args[3:] # type: ignore[union-attr] + args = ( + bn_weight, + bn_bias, + bn_running_mean, + bn_running_var, + bn_eps, + conv_node.target, # type: ignore[union-attr] + conv_weight, + conv_bias, + conv_input, + conv_remainging_args, + ) + + # create a new node + new_node = graph.create_node( + op="call_function", + target=efficient_conv_bn_eval_decomposed, + args=args, # type: ignore[arg-type] + name="efficient_conv_bn_eval", + ) + + # this node replaces the original conv + bn, and therefore + # should replace the uses of bn_node + bn_node.replace_all_uses_with(new_node) + # take care of the deletion order: + # delete bn_node first, and then conv_node + graph.erase_node(bn_node) + graph.erase_node(conv_node) # type: ignore[arg-type] + + return + + +@register_graph_pattern( + CallModuleVarArgs( + [ + nn.modules.batchnorm._BatchNorm, + nn.BatchNorm1d, + nn.BatchNorm2d, + nn.BatchNorm3d, + nn.SyncBatchNorm, + ], + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=efficient_conv_bn_eval_pass, + extra_check=lambda match: not inductor_config.freezing + and inductor_config.efficient_conv_bn_eval_fx_passes, +) +def efficient_conv_bn_eval_graph_transform(match: Match, *args, **kwargs): + # We matched a BN node + bn_node = match.nodes[0] + graph = match.graph + gm = graph.owning_module + bn_mod = getattr(gm, bn_node.target) # type: ignore[arg-type] + + # We can only use efficient conv-bn for eval mode with track_running_stats + if not bn_mod.track_running_stats or bn_mod.training: + return + + # Check if the input is Conv + if bn_node.args: + input_node = bn_node.args[0] + else: + input_node = bn_node.kwargs["input"] + if input_node.op != "call_module": # type: ignore[union-attr] + return + if not hasattr(gm, input_node.target): # type: ignore[arg-type, union-attr] + return + input_mod = getattr(gm, input_node.target) # type: ignore[arg-type, union-attr] + supported_convs = [ + nn.Linear, + nn.Conv1d, + nn.Conv2d, + nn.Conv3d, + nn.ConvTranspose1d, + nn.ConvTranspose2d, + nn.ConvTranspose3d, + ] + if not any(isinstance(input_mod, cls) for cls in supported_convs): + return + conv_node = input_node + # Output of conv is used by other nodes, cannot optimize + if len(conv_node.users) > 1: # type: ignore[union-attr] + return + + # Find a pair of conv and bn computation nodes to optimize. + counters["inductor"]["efficient_conv_bn_eval"] += 1 + + with graph.inserting_before(conv_node): # type: ignore[arg-type] + # create `get_attr` node to access modules + # note that we directly call `create_node` to fill the `name` + # argument. `graph.get_attr` and + # `graph.call_function` does not allow the `name` argument. + conv_get_node = graph.create_node( + op="get_attr", + target=conv_node.target, # type: ignore[union-attr] + name="get_conv", + ) + bn_get_node = graph.create_node( + op="get_attr", target=bn_node.target, name="get_bn" + ) + if conv_node.args: # type: ignore[union-attr] + conv_input = conv_node.args[0] # type: ignore[union-attr] + else: + conv_input = conv_node.kwargs["input"] # type: ignore[union-attr] + # prepare args for the fused function + args = (bn_get_node, conv_get_node, conv_input) + # create a new node + new_node = graph.create_node( + op="call_function", + target=efficient_conv_bn_eval, + args=args, + name="efficient_conv_bn_eval", + ) + # this node replaces the original conv + bn, and therefore + # should replace the uses of bn_node + bn_node.replace_all_uses_with(new_node) + # take care of the deletion order: + # delete bn_node first, and then conv_node + graph.erase_node(bn_node) + graph.erase_node(conv_node) # type: ignore[arg-type] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/freezing_patterns.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/freezing_patterns.py new file mode 100644 index 0000000000000000000000000000000000000000..b8fca2087a5d5220b7256f313bbb25d2d23d9ab7 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/freezing_patterns.py @@ -0,0 +1,310 @@ +# mypy: allow-untyped-defs +import functools + +import torch +from torch._inductor.compile_fx import fake_tensor_prop +from torch._inductor.utils import GPU_TYPES + +from ..._dynamo.utils import counters +from .. import config +from ..pattern_matcher import ( + _return_true, + CallFunction, + fwd_only, + Ignored, + init_once_fakemode, + KeywordArg, + Match, + PatternMatcherPass, + register_graph_pattern, + register_replacement, + stable_topological_sort, +) + + +aten = torch.ops.aten + +# First pass_patterns[0] are applied, then [1], then [2] +pass_patterns = [ + PatternMatcherPass(), + PatternMatcherPass(), + PatternMatcherPass(), +] + +binary_folding_pass = PatternMatcherPass() + + +def freezing_passes(gm: torch.fx.GraphModule, aot_example_inputs): + """ + Passes that are applied to the graph to freeze pass. + """ + + from ..freezing import constant_fold + + lazy_init() + # We need a few rounds of binary folding to get rid of all the + # unnecessary nodes, but may need a good method to chose the rounds number. + # works like: conv+binary+binary. + binary_folding = counters["inductor"]["binary_folding"] + fake_tensor_prop(gm, aot_example_inputs, True) + + torch._inductor.fx_passes.binary_folding.mark_mixed_dtype_allowed_computation_ops( + gm + ) + for _ in range(4): + constant_fold(gm) + # Make sure meta['val'] is properly set for all nodes + fake_tensor_prop(gm, aot_example_inputs, True) + binary_folding_pass.apply(gm.graph) # type: ignore[arg-type] + # If we don't have binary folding, we don't need to run the pass again. + # TODO: remove the need to run fake_tensor_prop on the whole model. + if counters["inductor"]["binary_folding"] == binary_folding: + break + binary_folding = counters["inductor"]["binary_folding"] + + torch._inductor.fx_passes.binary_folding.recover_original_precision_folded_computation_ops( + gm + ) + + constant_fold(gm) + fake_tensor_prop(gm, aot_example_inputs, True) + + for pattern in pass_patterns: + pattern.apply(gm.graph) # type: ignore[arg-type] + + # The CPU weight packing always assume the conv's weight is channels last, + # So make sure the layout_optimization is on when doing it. + if ( + torch._C._has_mkldnn + and config.cpp.weight_prepack + and config.layout_optimization + ): + from .mkldnn_fusion import _eliminate_duplicate_packed_nodes + + _eliminate_duplicate_packed_nodes(gm) + + stable_topological_sort(gm.graph) + gm.recompile() + gm.graph.lint() + + +@init_once_fakemode +def lazy_init(): + if torch._C._has_mkldnn and config.cpp.weight_prepack: + from .mkldnn_fusion import _mkldnn_weight_pack_init + + _mkldnn_weight_pack_init() + + from .binary_folding import binary_folding_init + + addmm_patterns_init() + binary_folding_init() + + +def register_freezing_graph_pattern(pattern, extra_check=_return_true, pass_number=0): + while pass_number > len(pass_patterns) - 1: + pass_patterns.append(PatternMatcherPass()) + return register_graph_pattern( + pattern, + extra_check=extra_check, + # pyrefly: ignore [bad-argument-type] + pass_dict=pass_patterns[pass_number], + ) + + +def register_binary_folding_pattern(pattern, extra_check=_return_true): + return register_graph_pattern( + pattern, + extra_check=extra_check, + # pyrefly: ignore [bad-argument-type] + pass_dict=binary_folding_pass, + ) + + +@functools.cache +def addmm_patterns_init(): + """ + addmm related patterns. + To avoid duplication, also includes int8 WoQ GEMM pattern without bias. + """ + device = next( + (gpu for gpu in GPU_TYPES if getattr(torch, gpu).is_available()), "cpu" + ) + val = functools.partial(torch.empty, (10, 10), device=device, requires_grad=False) + scale = functools.partial(torch.empty, (10,), device=device, requires_grad=False) + + def check_int8_woq_concat_linear_weights(match): + is_cpu = match.kwargs["inp"].meta["val"].is_cpu + if not is_cpu or not config.cpp.enable_concat_linear: + # Currently, this pattern is only supported on CPU + return False + + weight_inputs = ["w1", "w2"] + if "w3" in match.kwargs: + weight_inputs.append("w3") + + if not all( + match.kwargs[wgt].target is torch.ops.prims.convert_element_type.default + for wgt in weight_inputs + ): + return False + + if not all( + next(iter(match.kwargs[wgt]._input_nodes.keys())).meta["val"].dtype + is torch.int8 + for wgt in weight_inputs + ): + return False + + if not all( + match.kwargs[wgt].meta["val"].dtype is torch.bfloat16 + for wgt in weight_inputs + ): + return False + + return True + + def check_concat_weights(match): + is_cpu = match.kwargs["inp"].meta["val"].is_cpu + if is_cpu and not config.cpp.enable_concat_linear: + return False + + weight_inputs = ["w1", "w2"] + if "w3" in match.kwargs: + weight_inputs.append("w3") + + equal_shape_inputs = [weight_inputs] + + if "b1" in match.kwargs: + bias_inputs = ["b1", "b2"] + if "b3" in match.kwargs: + bias_inputs.append("b3") + + equal_shape_inputs.append(bias_inputs) + + for equal_shape_group in equal_shape_inputs: + inps = [match.kwargs[name] for name in equal_shape_group] + + if not all( + inp.op == "get_attr" + and inp.meta["val"].shape == inps[0].meta["val"].shape + for inp in inps + ): + return False + return True + + def int8_woq_fusion_pattern(inp, w1, w2, w3, s1, s2, s3): + return ((inp @ w1) * s1, (inp @ w2) * s2, (inp @ w3) * s3) + + def int8_woq_fusion_replacement(inp, w1, w2, w3, s1, s2, s3): + cat_w = torch.cat((w1, w2, w3), dim=1) + cat_s = torch.cat((s1, s2, s3), dim=0) + mm = (inp @ cat_w).mul(cat_s) + n1, n2 = w1.size(1), w2.size(1) + return mm.tensor_split([n1, n1 + n2], dim=-1) + + register_replacement( + # pyrefly: ignore [bad-argument-type] + int8_woq_fusion_pattern, + # pyrefly: ignore [bad-argument-type] + int8_woq_fusion_replacement, + [val(), val(), val(), val(), scale(), scale(), scale()], + # pyrefly: ignore [bad-argument-type] + fwd_only, + # pyrefly: ignore [bad-argument-type] + pass_patterns[0], + extra_check=check_int8_woq_concat_linear_weights, + exclusive_arg_names=("w1", "w2", "w3", "s1", "s2", "s3"), + ) + + def matmul_fuse_pattern(inp, w1, w2, w3): + return (inp @ w1, inp @ w2, inp @ w3) + + def matmul_replacement(inp, w1, w2, w3): + cat_t = torch.cat((w1, w2, w3), dim=1) + mm = inp @ cat_t + return mm.chunk(3, dim=1) + + register_replacement( + # pyrefly: ignore [bad-argument-type] + matmul_fuse_pattern, + # pyrefly: ignore [bad-argument-type] + matmul_replacement, + [val(), val(), val(), val()], + # pyrefly: ignore [bad-argument-type] + fwd_only, + # pyrefly: ignore [bad-argument-type] + pass_patterns[0], + extra_check=check_concat_weights, + exclusive_arg_names=("w1", "w2", "w3"), + ) + + def matmul_fuse_pattern_two(inp, w1, w2): + return (inp @ w1, inp @ w2) + + def matmul_replacement_two(inp, w1, w2): + cat_t = torch.cat((w1, w2), dim=1) + mm = inp @ cat_t + return mm.chunk(2, dim=1) + + register_replacement( + # pyrefly: ignore [bad-argument-type] + matmul_fuse_pattern_two, + # pyrefly: ignore [bad-argument-type] + matmul_replacement_two, + [val(), val(), val()], + # pyrefly: ignore [bad-argument-type] + fwd_only, + # pyrefly: ignore [bad-argument-type] + pass_patterns[0], + extra_check=check_concat_weights, + exclusive_arg_names=("w1", "w2"), + ) + + def addmm_fuse_pattern_second(inp, w1, w2, w3, b1, b2, b3): + return ( + aten.addmm(b1, inp, w1), + aten.addmm(b2, inp, w2), + aten.addmm(b3, inp, w3), + ) + + def addmm_fuse_replacement_second(inp, w1, w2, w3, b1, b2, b3): + cat_w = torch.cat((w1, w2, w3), dim=1) + cat_b = torch.cat((b1, b2, b3)) + return aten.addmm(cat_b, inp, cat_w).chunk(3, dim=1) + + register_replacement( + # pyrefly: ignore [bad-argument-type] + addmm_fuse_pattern_second, + # pyrefly: ignore [bad-argument-type] + addmm_fuse_replacement_second, + [val() for _ in range(7)], + # pyrefly: ignore [bad-argument-type] + fwd_only, + # pyrefly: ignore [bad-argument-type] + pass_patterns[0], + extra_check=check_concat_weights, + exclusive_arg_names=("w1", "w2", "w3", "b1", "b2", "b3"), + ) + + +def same_dtype(match): + return match.output_node().args[0].meta["val"].dtype == match.kwargs["dtype"] + + +@register_graph_pattern( + CallFunction( + torch.ops.prims.convert_element_type.default, + Ignored(), + KeywordArg("dtype"), + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=pass_patterns[0], + extra_check=same_dtype, +) +def unnecessary_dtype_convert(match: Match, **kwargs): + """Remove unnecessary dtype conversion op, probably left as a result of Conv-Bn folding""" + graph = match.graph + node = match.output_node() + node.replace_all_uses_with(node.args[0]) # type: ignore[arg-type] + graph.erase_node(node) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/fsdp.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/fsdp.py new file mode 100644 index 0000000000000000000000000000000000000000..1e71c350ed7b67b47e7a77af7cbd4b93bfc48f98 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/fsdp.py @@ -0,0 +1,115 @@ +import logging +from collections.abc import Callable + +import torch +from torch._inductor.fx_passes.bucketing import ( + bucket_all_gather_by_mb, + bucket_reduce_scatter_by_mb, + BucketMode, + merge_all_gather, + merge_reduce_scatter, +) + + +logger: logging.Logger = logging.getLogger(__name__) +logger.setLevel(logging.INFO) + + +def is_graph_input(node: torch.fx.Node) -> bool: + return node.op == "placeholder" + + +def is_fsdp_all_gather_wait(wait: torch.fx.Node) -> bool: + # Assume all_gather_into_tensor input is either graph input + # or dtype conversion of graph input + ag_node = wait.args[0] # type: ignore[arg-type, union-attr] + return ( + is_graph_input(ag_node.args[0]) # type: ignore[arg-type, union-attr] + or ( # type: ignore[arg-type, union-attr] + ag_node.args[0].op == "call_function" # type: ignore[arg-type, union-attr] + and ag_node.args[0].target # type: ignore[arg-type, union-attr] + == torch.ops.prims.convert_element_type.default # type: ignore[arg-type, union-attr] + and is_graph_input(ag_node.args[0].args[0]) # type: ignore[arg-type, union-attr] + ) + ) + + +def is_graph_output(node: torch.fx.Node) -> bool: + return all(user.op == "output" for user in node.users) + + +def is_fsdp_reduce_scatter_wait(wait: torch.fx.Node) -> bool: + if is_graph_output(wait): + return True + + if len(wait.users) == 1: + user = next(iter(wait.users)) + assert user is not None + return ( + is_graph_output(user) + and user.op == "call_function" + and user.target is torch.ops.prims.convert_element_type.default + ) + + return False + + +def bucket_fsdp_all_gather( + gm: torch.fx.GraphModule, + bucket_cap_mb_by_bucket_idx: Callable[[int], float] | None = None, + mode: BucketMode = "default", +) -> None: + """ + Bucketing pass for SimpleFSDP all_gather ops. + + Attributes: + gm (torch.fx.GraphModule): Graph module of the graph. + bucket_cap_mb_by_bucket_idx (Callable[[int], float] | None): callback function that + takes in bucket id and returns size of a bucket in megabytes. + """ + if bucket_cap_mb_by_bucket_idx is None: + from torch._inductor.fx_passes.bucketing import ( + bucket_cap_mb_by_bucket_idx_default, + ) + + bucket_cap_mb_by_bucket_idx = bucket_cap_mb_by_bucket_idx_default + assert bucket_cap_mb_by_bucket_idx is not None + ag_buckets = bucket_all_gather_by_mb( + gm, + bucket_cap_mb_by_bucket_idx, + filter_wait_node=is_fsdp_all_gather_wait, + ) + if len(ag_buckets) == 0: + return + merge_all_gather(gm, ag_buckets, mode) + + +def bucket_fsdp_reduce_scatter( + gm: torch.fx.GraphModule, + bucket_cap_mb_by_bucket_idx: Callable[[int], float] | None = None, + mode: BucketMode = "default", +) -> None: + """ + Bucketing pass for SimpleFSDP reduce_scatter ops. + + Attributes: + gm (torch.fx.GraphModule): Graph module of the graph. + bucket_cap_mb_by_bucket_idx (Callable[[int], float] | None): callback function that + takes in bucket idx and returns size of a bucket in megabytes. By default + torch._inductor.fx_passes.bucketing.bucket_cap_mb_by_bucket_idx_default is used. + + """ + if bucket_cap_mb_by_bucket_idx is None: + from torch._inductor.fx_passes.bucketing import ( + bucket_cap_mb_by_bucket_idx_default, + ) + + bucket_cap_mb_by_bucket_idx = bucket_cap_mb_by_bucket_idx_default + rs_buckets = bucket_reduce_scatter_by_mb( + gm, + bucket_cap_mb_by_bucket_idx, + filter_wait_node=is_fsdp_reduce_scatter_wait, + ) + if len(rs_buckets) == 0: + return + merge_reduce_scatter(gm, rs_buckets, mode) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/fuse_attention.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/fuse_attention.py new file mode 100644 index 0000000000000000000000000000000000000000..9a09d2531348849ed997fc762aef44a09c43e6a9 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/fuse_attention.py @@ -0,0 +1,1152 @@ +# mypy: allow-untyped-defs +import functools +import inspect +import logging +import math + +import torch + +from ..._dynamo.utils import counters +from ..pattern_matcher import ( + filter_nodes, + fwd_only, + gen_register_replacement, + joint_fwd_bwd, +) + + +log = logging.getLogger(__name__) +aten = torch.ops.aten + +_scaled_dot_product_attention = aten.scaled_dot_product_attention + + +def _sfdp_pattern_1(query, key, value, inv_scale): + return ( + torch.matmul(query, key.transpose(-2, -1)) + .div(inv_scale) + .softmax(dim=-1) + .matmul(value) + ) + + +def _sfdp_replacement_1(query, key, value, inv_scale): + counters["inductor"]["fuse_attention"] += 1 + return _scaled_dot_product_attention( + query, + key, + value, + attn_mask=None, + dropout_p=0.0, + is_causal=False, + scale=1.0 / inv_scale, + ) + + +def _sfdp_pattern_2(query, key, value, scale_factor): + return ( + torch.matmul(query, key.transpose(-2, -1)) + .mul(scale_factor) + .softmax(dim=-1) + .matmul(value) + ) + + +def _sfdp_replacement_2(query, key, value, scale_factor): + counters["inductor"]["fuse_attention"] += 1 + return _scaled_dot_product_attention( + query, + key, + value, + attn_mask=None, + dropout_p=0.0, + is_causal=False, + scale=scale_factor, + ) + + +def _sfdp_pattern_3(query, key, value, inv_scale_factor, dropout_p): + return torch.nn.functional.dropout( + torch.matmul(query, key.transpose(-2, -1)) + .div(inv_scale_factor) + .softmax(dim=-1), + p=dropout_p, + ).matmul(value) + + +def _sfdp_replacement_3(query, key, value, inv_scale_factor, dropout_p): + counters["inductor"]["fuse_attention"] += 1 + return _scaled_dot_product_attention( + query, + key, + value, + attn_mask=None, + dropout_p=dropout_p, + is_causal=False, + scale=1.0 / inv_scale_factor, + ) + + +def _sfdp_pattern_4(query, key, value, scale_factor, dropout_p): + return torch.nn.functional.dropout( + torch.matmul(query, key.transpose(-2, -1)).mul(scale_factor).softmax(dim=-1), + p=dropout_p, + ).matmul(value) + + +def _sfdp_replacement_4(query, key, value, scale_factor, dropout_p): + counters["inductor"]["fuse_attention"] += 1 + return _scaled_dot_product_attention( + query, + key, + value, + attn_mask=None, + dropout_p=dropout_p, + is_causal=False, + scale=scale_factor, + ) + + +def _sfdp_pattern_5(query, key, value, attn_mask): + attn_weight = torch.softmax( + (query @ key.transpose(-2, -1) / math.sqrt(query.size(-1))) + attn_mask, dim=-1 + ) + # attn_weight = torch.dropout(attn_weight, dropout_p) + return attn_weight @ value + + +def _sfdp_replacement_5(query, key, value, attn_mask): + counters["inductor"]["fuse_attention"] += 1 + return _scaled_dot_product_attention( + query, + key, + value, + attn_mask=attn_mask.to(dtype=query.dtype), + dropout_p=0.0, + is_causal=False, + ) + + +def _sfdp_pattern_6(query, key, value, attn_mask, dropout_p): + attn_weight = torch.softmax( + (query @ key.transpose(-2, -1) / math.sqrt(query.size(-1))) + attn_mask, dim=-1 + ) + attn_weight = torch.dropout(attn_weight, dropout_p, True) + return attn_weight @ value + + +def _sfdp_replacement_6(query, key, value, attn_mask, dropout_p): + counters["inductor"]["fuse_attention"] += 1 + return _scaled_dot_product_attention( + query, + key, + value, + attn_mask=attn_mask.to(dtype=query.dtype), + dropout_p=dropout_p, + is_causal=False, + ) + + +def _sfdp_pattern_7(query, key, value, dropout_p): + # in real workloads inputs to matmul are permuted + # causing matmul to expand to a series of expand and clone calls + # we want the same to happen during pattern tracing + q = query.permute(0, 2, 1, 3) + k = key.permute(0, 2, 1, 3) + v = value.permute(0, 2, 1, 3) + div = q @ k.transpose(-2, -1) / math.sqrt(q.size(-1)) + div = div.to(torch.float32) + attn_weight = torch.softmax(div, dim=-1) + attn_weight = torch.dropout(attn_weight, dropout_p, True) + attn_weight = attn_weight.to(torch.float16) + return attn_weight @ v + + +def _sfdp_replacement_7(query, key, value, dropout_p): + # sdpa prefers inputs in permuted format + # it makes a copy to put them in this format + # if they aren't already + # to make replacement efficient ensure that inputs to sdpa + # are in required order + counters["inductor"]["fuse_attention"] += 1 + q = query.permute(0, 2, 1, 3) + k = key.permute(0, 2, 1, 3) + v = value.permute(0, 2, 1, 3) + return _scaled_dot_product_attention( + q, + k, + v, + attn_mask=None, # attn_mask, + dropout_p=dropout_p, + is_causal=False, + ) + + +def _sfdp_pattern_8(query, key, value): + # no dropout version of pattern 7 + q = query.permute(0, 2, 1, 3) + k = key.permute(0, 2, 1, 3) + v = value.permute(0, 2, 1, 3) + div = q @ k.transpose(-2, -1) / math.sqrt(q.size(-1)) + div = div.to(torch.float32) + attn_weight = torch.softmax(div, dim=-1) + attn_weight = attn_weight.to(torch.float16) + return attn_weight @ v + + +def _sfdp_replacement_8(query, key, value): + counters["inductor"]["fuse_attention"] += 1 + q = query.permute(0, 2, 1, 3) + k = key.permute(0, 2, 1, 3) + v = value.permute(0, 2, 1, 3) + return _scaled_dot_product_attention( + q, + k, + v, + attn_mask=None, # attn_mask, + dropout_p=0.0, + is_causal=False, + ) + + +def _sfdp_pattern_9(query, key, value, dropout_p): + q = query.permute(0, 2, 1, 3) + k = key.permute(0, 2, 1, 3) + v = value.permute(0, 2, 1, 3) + q = q / math.sqrt(q.size(-1)) + div = q @ k.transpose(-2, -1) + div = div.to(torch.float32) + attn_weight = torch.softmax(div, dim=-1) + attn_weight = torch.dropout(attn_weight, dropout_p, True) + attn_weight = attn_weight.to(torch.float16) + return attn_weight @ v + + +def _sfdp_replacement_9(query, key, value, dropout_p): + counters["inductor"]["fuse_attention"] += 1 + q = query.permute(0, 2, 1, 3) + k = key.permute(0, 2, 1, 3) + v = value.permute(0, 2, 1, 3) + return _scaled_dot_product_attention( + q, + k, + v, + attn_mask=None, # attn_mask, + dropout_p=dropout_p, + is_causal=False, + ) + + +def _sfdp_pattern_10(query, key, value): + # no dropout version of 9 + q = query.permute(0, 2, 1, 3) + k = key.permute(0, 2, 1, 3) + v = value.permute(0, 2, 1, 3) + q = q / math.sqrt(q.size(-1)) + div = q @ k.transpose(-2, -1) + div = div.to(torch.float32) + attn_weight = torch.softmax(div, dim=-1) + attn_weight = attn_weight.to(torch.float16) + return attn_weight @ v + + +def _sfdp_replacement_10(query, key, value): + counters["inductor"]["fuse_attention"] += 1 + q = query.permute(0, 2, 1, 3) + k = key.permute(0, 2, 1, 3) + v = value.permute(0, 2, 1, 3) + return _scaled_dot_product_attention( + q, + k, + v, + attn_mask=None, # attn_mask, + dropout_p=0.0, + is_causal=False, + ) + + +def _sfdp_pattern_11(query, key, value, inv_scale): + # Mainly for huggingface models + q = query.permute(0, 2, 1, 3) + k = key.permute(0, 2, 1, 3) + v = value.permute(0, 2, 1, 3) + return torch.matmul(q, k.transpose(-2, -1)).div(inv_scale).softmax(dim=-1).matmul(v) + + +def _sfdp_replacement_11(query, key, value, inv_scale): + counters["inductor"]["fuse_attention"] += 1 + return _scaled_dot_product_attention( + query.transpose(1, 2), + key.transpose(1, 2), + value.transpose(1, 2), + attn_mask=None, + dropout_p=0.0, + is_causal=False, + scale=1.0 / inv_scale, + ) + + +def _sfdp_pattern_12(query, key, value, inv_scale_factor, dropout_p): + q = query.permute(0, 2, 1, 3) + k = key.permute(0, 2, 1, 3) + v = value.permute(0, 2, 1, 3) + return torch.nn.functional.dropout( + torch.matmul(q, k.transpose(-2, -1)).div(inv_scale_factor).softmax(dim=-1), + p=dropout_p, + ).matmul(v) + + +def _sfdp_replacement_12(query, key, value, inv_scale_factor, dropout_p): + counters["inductor"]["fuse_attention"] += 1 + return _scaled_dot_product_attention( + query.transpose(1, 2), + key.transpose(1, 2), + value.transpose(1, 2), + attn_mask=None, + dropout_p=dropout_p, + is_causal=False, + scale=1.0 / inv_scale_factor, + ) + + +def _sfdp_pattern_13(query, key, value, dropout_p): + attn_weight = torch.bmm(query, key.transpose(1, 2)).softmax(dim=-1) + attn_weight = torch.nn.functional.dropout(attn_weight, p=dropout_p) + return torch.bmm(attn_weight, value) + + +def _sfdp_replacement_13(query, key, value, dropout_p): + counters["inductor"]["fuse_attention"] += 1 + return _scaled_dot_product_attention( + query.unsqueeze(0), + key.unsqueeze(0), + value.unsqueeze(0), + dropout_p=dropout_p, + scale=1.0, + ).squeeze(0) + + +def _sfdp_pattern_14(query, key, value, attn_mask, inv_scale): + # for BertLarge + # Permutations are needed to create clones in graph. + q = query.permute([0, 2, 1, 3]) + k = key.permute([0, 2, 1, 3]) + v = value.permute([0, 2, 1, 3]) + return ( + (torch.matmul(q, k.transpose(-2, -1)).div(inv_scale) + attn_mask) + .softmax(dim=-1) + .matmul(v) + ) + + +def _sfdp_replacement_14(query, key, value, attn_mask, inv_scale): + counters["inductor"]["fuse_attention"] += 1 + return _scaled_dot_product_attention( + query.transpose(1, 2), + key.transpose(1, 2), + value.transpose(1, 2), + attn_mask=attn_mask.to(dtype=query.dtype), + dropout_p=0.0, + is_causal=False, + scale=1.0 / inv_scale, + ) + + +def _sfdp_pattern_15(query, key, value, attn_mask, inv_scale): + # for DistilBert + # Permutations are needed to create clones in graph. + # Ref: https://github.com/pytorch/pytorch/issues/119911 + q = query.permute([0, 2, 1, 3]) + k = key.permute([0, 2, 1, 3]) + v = value.permute([0, 2, 1, 3]) + bs = q.size(0) + k_len = k.size(-2) + scores = q @ k.transpose(-2, -1) + scores = scores.div(inv_scale) + fill_value = torch.full((), -float("inf"), dtype=query.dtype, device=query.device) + attn_mask = (attn_mask == 0).view((bs, 1, 1, k_len)).expand_as(scores) + return torch.softmax(scores.masked_fill(attn_mask, fill_value), dim=-1) @ v + + +def _sfdp_replacement_15(query, key, value, attn_mask, inv_scale): + counters["inductor"]["fuse_attention"] += 1 + bs = query.size(0) + n_head = query.size(2) + q_len = query.size(1) + k_len = key.size(1) + # do attn_mask->logical_not() in _scaled_dot_product_attention + attn_mask = ( + (attn_mask == 1).view((bs, 1, 1, k_len)).expand((bs, n_head, q_len, k_len)) + ) + return _scaled_dot_product_attention( + query.transpose(1, 2), + key.transpose(1, 2), + value.transpose(1, 2), + attn_mask=attn_mask.to(dtype=torch.bool), + dropout_p=0.0, + is_causal=False, + scale=1.0 / inv_scale, + ) + + +def _sfdp_pattern_16(query, key, value, attn_mask, inv_scale, dropout_p): + # for BertLarge with dropout + q = query.permute([0, 2, 1, 3]) + k = key.permute([0, 2, 1, 3]) + v = value.permute([0, 2, 1, 3]) + return ( + torch.nn.functional.dropout( + (torch.matmul(q, k.transpose(-2, -1)).div(inv_scale) + attn_mask).softmax( + dim=-1 + ), + dropout_p, + ) + .to(dtype=query.dtype) + .matmul(v) + ) + + +def _sfdp_replacement_16(query, key, value, attn_mask, inv_scale, dropout_p): + counters["inductor"]["fuse_attention"] += 1 + return _scaled_dot_product_attention( + query.transpose(1, 2), + key.transpose(1, 2), + value.transpose(1, 2), + attn_mask=attn_mask.to(dtype=query.dtype), + dropout_p=dropout_p, + is_causal=False, + scale=1.0 / inv_scale, + ) + + +def _sfdp_pattern_17(query, key, value, attn_mask, inv_scale, dropout_p): + # for DistilBert with dropout + q = query.permute([0, 2, 1, 3]) + k = key.permute([0, 2, 1, 3]) + v = value.permute([0, 2, 1, 3]) + bs = q.size(0) + k_len = k.size(-2) + scores = q @ k.transpose(-2, -1) + scores = scores.div(inv_scale) + fill_value = torch.full((), -float("inf"), dtype=query.dtype, device=query.device) + attn_mask = (attn_mask == 0).view((bs, 1, 1, k_len)).expand_as(scores) + return ( + torch.nn.functional.dropout( + torch.softmax(scores.masked_fill(attn_mask, fill_value), dim=-1), dropout_p + ) + @ v + ) + + +def _sfdp_replacement_17(query, key, value, attn_mask, inv_scale, dropout_p): + counters["inductor"]["fuse_attention"] += 1 + bs = query.size(0) + n_head = query.size(2) + q_len = query.size(1) + k_len = key.size(1) + # do attn_mask->logical_not() in _scaled_dot_product_attention + attn_mask = ( + (attn_mask == 1).view((bs, 1, 1, k_len)).expand((bs, n_head, q_len, k_len)) + ) + return _scaled_dot_product_attention( + query.transpose(1, 2), + key.transpose(1, 2), + value.transpose(1, 2), + attn_mask=attn_mask.to(dtype=torch.bool), + dropout_p=dropout_p, + is_causal=False, + scale=1.0 / inv_scale, + ) + + +def _sfdp_pattern_18(query, key, value, causal_mask, dropout_p): + # for hf_GPT2 with dropout (introduces clone node) for inference + # it also returns permuted key & value + query = query.permute([0, 2, 1, 3]) + key = key.permute([0, 2, 1, 3]) + value = value.permute([0, 2, 1, 3]) + attn_weights = torch.matmul(query, key.permute(0, 1, 3, 2)) + inv_scale = torch.full( + [], + value.size(-1) ** 0.5, + dtype=attn_weights.dtype, + device=attn_weights.device, + ) + attn_weights = attn_weights.div(inv_scale) + causal_mask_value = torch.full( + (), torch.finfo(query.dtype).min, dtype=query.dtype, device=query.device + ) + attn_weights = torch.where(causal_mask, attn_weights, causal_mask_value) + return ( + ( + torch.nn.functional.dropout(attn_weights.softmax(dim=-1), dropout_p).matmul( + value + ) + ), + key, + value, + ) + + +def _sfdp_replacement_18(query, key, value, causal_mask, dropout_p): + counters["inductor"]["fuse_attention"] += 1 + permuted_key = key.transpose(1, 2) + permuted_value = value.transpose(1, 2) + return ( + _scaled_dot_product_attention( + query.transpose(1, 2), + permuted_key, + permuted_value, + attn_mask=causal_mask, + dropout_p=dropout_p, + is_causal=False, + scale=1.0 / math.sqrt(value.size(-1)), + ), + permuted_key, + permuted_value, + ) + + +def _sfdp_pattern_19(query, key, value, causal_mask, attn_mask, dropout_p): + # for token-classification+gpt2 / text-generation+gpt2 + attn_weights = torch.matmul(query, key.permute(0, 1, 3, 2)) + inv_scale = torch.full( + [], + value.size(-1) ** 0.5, + dtype=attn_weights.dtype, + device=attn_weights.device, + ) + attn_weights = attn_weights.div(inv_scale) + causal_mask_value = torch.full( + (), torch.finfo(query.dtype).min, dtype=query.dtype, device=query.device + ) + attn_weights = torch.where(causal_mask, attn_weights, causal_mask_value) + attn_weights = attn_weights + attn_mask + attn_weights = attn_weights.softmax(dim=-1).type(value.dtype) + return torch.nn.functional.dropout(attn_weights, dropout_p).matmul(value) + + +def _sfdp_replacement_19(query, key, value, causal_mask, attn_mask, dropout_p): + counters["inductor"]["fuse_attention"] += 1 + fill_value = torch.full((), -float("inf"), dtype=query.dtype, device=query.device) + attn_mask = torch.where(causal_mask, attn_mask, fill_value) + return _scaled_dot_product_attention( + query, + key, + value, + attn_mask=attn_mask, + dropout_p=dropout_p, + is_causal=False, + scale=1.0 / math.sqrt(value.size(-1)), + ) + + +def _sfdp_pattern_20(query, key, value, attn_mask, dropout_p): + # for DistilBert with dropout transformers==4.44.2 + q = query.permute([0, 2, 1, 3]) + k = key.permute([0, 2, 1, 3]) + v = value.permute([0, 2, 1, 3]) + bs = q.size(0) + k_len = k.size(-2) + q = q.div(math.sqrt(q.size(-1))) + scores = q @ k.transpose(-2, -1) + fill_value = torch.full((), -float("inf"), dtype=query.dtype, device=query.device) + attn_mask = (attn_mask == 0).view((bs, 1, 1, k_len)).expand_as(scores) + return ( + torch.nn.functional.dropout( + torch.softmax(scores.masked_fill(attn_mask, fill_value), dim=-1), dropout_p + ) + @ v + ) + + +def _sfdp_replacement_20(query, key, value, attn_mask, dropout_p): + counters["inductor"]["fuse_attention"] += 1 + bs = query.size(0) + n_head = query.size(2) + q_len = query.size(1) + k_len = key.size(1) + # do attn_mask->logical_not() in _scaled_dot_product_attention + attn_mask = ( + (attn_mask == 1).view((bs, 1, 1, k_len)).expand((bs, n_head, q_len, k_len)) + ) + return _scaled_dot_product_attention( + query.transpose(1, 2), + key.transpose(1, 2), + value.transpose(1, 2), + attn_mask=attn_mask.to(dtype=torch.bool), + dropout_p=dropout_p, + is_causal=False, + scale=1.0 / math.sqrt(query.size(-1)), + ) + + +def _sfdp_pattern_21(query, key, value, attn_mask): + # for T5 with inplace add + query = query.permute([0, 2, 1, 3]) + key = key.permute([0, 2, 1, 3]) + value = value.permute([0, 2, 1, 3]) + score = torch.matmul(query, key.permute(0, 1, 3, 2)) + masked_score = score + attn_mask + score = masked_score.type_as(query) + viewd_score1 = score.view( + score.size(0) * score.size(1), score.size(2), score.size(3) + ) + viewd_score2 = viewd_score1.view( + score.size(0), score.size(1), score.size(2), score.size(3) + ) + return viewd_score2.float().softmax(dim=-1).type_as(query).matmul(value) + + +def _sfdp_replacement_21(query, key, value, attn_mask): + counters["inductor"]["fuse_attention"] += 1 + query = query.permute(0, 2, 1, 3) + key = key.permute(0, 2, 1, 3) + value = value.permute(0, 2, 1, 3) + return _scaled_dot_product_attention( + query, + key, + value, + attn_mask=attn_mask.to(dtype=query.dtype), + is_causal=False, + scale=1.0, + ) + + +def _sfdp_pattern_22(query, key, value, attn_mask): + # for T5 with inplace add and return key and value + query = query.permute([0, 2, 1, 3]) + key = key.permute([0, 2, 1, 3]) + value = value.permute([0, 2, 1, 3]) + score = torch.matmul(query, key.permute(0, 1, 3, 2)) + masked_score = score + attn_mask + score = masked_score.type_as(query) + viewd_score1 = score.view( + score.size(0) * score.size(1), score.size(2), score.size(3) + ) + viewd_score2 = viewd_score1.view( + score.size(0), score.size(1), score.size(2), score.size(3) + ) + return viewd_score2.float().softmax(dim=-1).type_as(query).matmul(value), key, value + + +def _sfdp_replacement_22(query, key, value, attn_mask): + counters["inductor"]["fuse_attention"] += 1 + query = query.permute(0, 2, 1, 3) + key = key.permute(0, 2, 1, 3) + value = value.permute(0, 2, 1, 3) + return ( + _scaled_dot_product_attention( + query, + key, + value, + attn_mask=attn_mask.to(dtype=query.dtype), + is_causal=False, + scale=1.0, + ), + key, + value, + ) + + +def _sfdp_pattern_23(query, key, value): + # for T5 with inplace add and + # return key and value and + # attn_mask is generated by atem.full(..., 0) + query = query.permute([0, 2, 1, 3]) + key = key.permute([0, 2, 1, 3]) + value = value.permute([0, 2, 1, 3]) + score = torch.matmul(query, key.permute(0, 1, 3, 2)) + fp32_score = score.float() + score = fp32_score.type_as(query) + viewd_score1 = score.view( + score.size(0) * score.size(1), score.size(2), score.size(3) + ) + viewd_score2 = viewd_score1.view( + score.size(0), score.size(1), score.size(2), score.size(3) + ) + return viewd_score2.float().softmax(dim=-1).type_as(query).matmul(value), key, value + + +def _sfdp_replacement_23(query, key, value): + counters["inductor"]["fuse_attention"] += 1 + query = query.permute(0, 2, 1, 3) + key = key.permute(0, 2, 1, 3) + value = value.permute(0, 2, 1, 3) + return ( + _scaled_dot_product_attention( + query, + key, + value, + attn_mask=None, + is_causal=False, + scale=1.0, + ), + key, + value, + ) + + +def _sfdp_pattern_24(query, key, value, attention_mask): + """ + this pattern is for MBartForCausalLM/PLBartForCausalLM. + attn_mask has a different dtype with QKV. + there is no scale in sdpa. + """ + bs = query.size(0) + n_head = query.size(1) + seq_len = query.size(2) + head_size = query.size(3) + q = query.view(bs * n_head, -1, head_size) + k = key.reshape(bs * n_head, -1, head_size) + v = value.reshape(bs * n_head, -1, head_size) + attn_weights = torch.bmm(q, k.transpose(1, 2)) + attn_weights = attn_weights.view(bs, n_head, seq_len, -1) + attention_mask + attn_weights = attn_weights.view(bs * n_head, seq_len, -1) + attn_weights = torch.nn.functional.softmax(attn_weights, dim=-1) + if query.dtype == torch.half: + attn_weights = attn_weights.to(torch.half) + attn_output = torch.bmm(attn_weights, v) + attn_output = attn_output.view(bs, n_head, seq_len, head_size) + return attn_output + + +def _sfdp_replacement_24(query, key, value, attention_mask): + counters["inductor"]["fuse_attention"] += 1 + return _scaled_dot_product_attention( + query, + key, + value, + attn_mask=attention_mask.to(dtype=query.dtype), + is_causal=False, + scale=1, + ) + + +def _sfdp_params_check(match): + assert all(k in match.kwargs for k in ("query", "key", "value")) + query = match.kwargs["query"].meta["val"] + key = match.kwargs["key"].meta["val"] + value = match.kwargs["value"].meta["val"] + if not (query.dtype == key.dtype == value.dtype) or not ( + query.device == key.device == value.device + ): + return False + add_mask_node = filter_nodes(match.nodes, aten.add.Tensor) + # Has attn_mask add. + if len(add_mask_node) > 0: + attn_mask_node = add_mask_node[0].args[1] + # attn_mask_node may be a float/int number. + if not hasattr(attn_mask_node, "meta"): + return False + attn_mask = attn_mask_node.meta["val"] # type: ignore[union-attr] + # Make sure attn_mask.dtype == query.dtype or attn_mask.dtype == torch.bool + # attn_mask.dtype == torch.float for models like albert. + if ( + not isinstance(attn_mask, torch.Tensor) + or not ( + attn_mask.dtype == query.dtype + or attn_mask.dtype == torch.bool + or attn_mask.dtype == torch.float + ) + or query.device != attn_mask.device + # When we tensorify floats we end up turning floats + # into 0d scalar tensors. It doesn't make any sense + # to have a 0d scalar tensor attention mask so + # conveniently we can insert this check to get + # tests that erroneously passing in a float + # attention mask to fail as expected. + or attn_mask.dim() == 0 + ): + return False + return True + + +def _sfdp_extra_check(scale_factor_op=None, disable_cuda=False): + def fn(match): + if ( + disable_cuda + and "query" in match.kwargs + and "cuda" in str(match.kwargs["query"].meta["val"].device) + ): + return False + if scale_factor_op is not None: + scale_factor_node = filter_nodes(match.nodes, scale_factor_op)[0] + # Note: args[1] of the scale_factor_node is always the scale_factor for the current patterns. + scale_factor = scale_factor_node.args[1] + # make sure the scale_factor a float/int. SymInt? + if not isinstance(scale_factor, (float, int)): + return False + return _sfdp_params_check(match) + + return fn + + +def partialize_and_update_signature(func, **kwargs): + """ + Equivalent to functools.partial but also updates the signature on returned function + """ + original_sig = inspect.signature(func) + parameters = original_sig.parameters + + new_parameters = { + key: value for key, value in parameters.items() if key not in kwargs + } + new_sig = inspect.Signature(parameters=list(new_parameters.values())) + + partial_func = functools.partial(func, **kwargs) + + def wrapper(*args, **kwargs): + return partial_func(*args, **kwargs) + + wrapper.__signature__ = new_sig # type: ignore[attr-defined] + wrapper.__name__ = func.__name__ + + return wrapper + + +def _get_sfdp_patterns(): + from .joint_graph import patterns + + if torch.cuda.is_available(): + # workaround https://github.com/pytorch/pytorch/issues/97894 + device = "cuda" + else: + device = "cpu" + + # sizes/values don't actually matter for initial trace + # once we get a possible match we re-trace with the actual values and verify the match still holds + g_inp = functools.partial( + torch.empty, (2, 4, 8, 16), device=device, requires_grad=True + ) + # attn_mask + b_inp = functools.partial(torch.empty, (1, 1, 8, 8), device=device) + m_inp = functools.partial(torch.empty, (2, 1, 1, 4), device=device) + # need 2d attn_mask to generate patterns with view op + m_inp_2d = functools.partial(torch.empty, (2, 4), device=device) + # inv_scale + c_inp = functools.partial(torch.tensor, 2.0, device=device) + # workaround https://github.com/pytorch/pytorch/issues/97894 + # 0.113377 is a "magic" value that lets us recover the lost input arg relationship + d = {"dropout_p": 0.113377} + + # we could also generate all these patterns in 3d.. TODO + g_3d_inp = functools.partial( + torch.empty, (1024, 128, 128), device=device, requires_grad=True + ) + + # reshape in matmul decomposition generates a clone when batch_size>1 due to the memory layout change. + # however when batch_size=1, reshape does not change the memory layout, so clone would not be generated. + # here we need to trace with input of batch_size=1 to generate a pattern graph without clone. + g_bs1_inp = functools.partial( + torch.empty, (1, 4, 8, 16), device=device, requires_grad=True + ) + m_bs1_inp = functools.partial(torch.empty, (1, 1, 1, 4), device=device) + + # softmax will generate a dtype conversion on inputs if they are in half, + # but will not in float, so we generate a pattern for both + for dtype in [torch.float, torch.half]: + g = functools.partial(g_inp, dtype=dtype) + b = functools.partial(b_inp, dtype=dtype) + b_float = functools.partial(b_inp, dtype=torch.float) + b_bool = functools.partial(b_inp, dtype=torch.bool) + m = functools.partial(m_inp, dtype=dtype) + m_float = functools.partial(m_inp, dtype=torch.float) + m_bool = functools.partial(m_inp, dtype=torch.bool) + m_2d = functools.partial(m_inp_2d, dtype=dtype) + c = functools.partial(c_inp, dtype=dtype) + g_3d = functools.partial(g_3d_inp, dtype=dtype) + g_bs1 = functools.partial(g_bs1_inp, dtype=dtype) + m_bs1 = functools.partial(m_bs1_inp, dtype=dtype) + m_bs1_float = functools.partial(m_bs1_inp, dtype=torch.float) + m_bs1_bool = functools.partial(m_bs1_inp, dtype=torch.bool) + + candidates = [ + ( + _sfdp_pattern_1, + _sfdp_replacement_1, + [g(), g(), g(), c()], + {}, + _sfdp_extra_check(aten.div.Tensor), + ), + ( + _sfdp_pattern_2, + _sfdp_replacement_2, + [g(), g(), g(), c()], + {}, + _sfdp_extra_check(aten.mul.Tensor), + ), + ( + _sfdp_pattern_3, + _sfdp_replacement_3, + [g(), g(), g(), c()], + d, + _sfdp_extra_check(aten.div.Tensor), + ), + ( + _sfdp_pattern_4, + _sfdp_replacement_4, + [g(), g(), g(), c()], + d, + _sfdp_extra_check(aten.mul.Tensor), + ), + ( + _sfdp_pattern_5, + _sfdp_replacement_5, + [g(), g(), g(), b()], + {}, + _sfdp_params_check, + ), + ( + _sfdp_pattern_6, + _sfdp_replacement_6, + [g(), g(), g(), b()], + d, + _sfdp_params_check, + ), + ( + _sfdp_pattern_7, + _sfdp_replacement_7, + [g(), g(), g()], + d, + _sfdp_params_check, + ), + ( + _sfdp_pattern_8, + _sfdp_replacement_8, + [g(), g(), g()], + {}, + _sfdp_params_check, + ), + ( + _sfdp_pattern_9, + _sfdp_replacement_9, + [g(), g(), g()], + d, + _sfdp_params_check, + ), + ( + _sfdp_pattern_10, + _sfdp_replacement_10, + [g(), g(), g()], + {}, + _sfdp_params_check, + ), + ( + _sfdp_pattern_11, + _sfdp_replacement_11, + [g(), g(), g(), c()], + {}, + _sfdp_extra_check(aten.div.Tensor), + ), + ( + _sfdp_pattern_12, + _sfdp_replacement_12, + [g(), g(), g(), c()], + d, + _sfdp_extra_check(aten.div.Tensor), + ), + ( + _sfdp_pattern_13, + _sfdp_replacement_13, + [g_3d(), g_3d(), g_3d()], + d, + _sfdp_params_check, + ), + ( + _sfdp_pattern_14, + _sfdp_replacement_14, + [g(), g(), g(), m(), c()], + {}, + _sfdp_extra_check(aten.div.Tensor), + ), + ( + _sfdp_pattern_15, + _sfdp_replacement_15, + [g(), g(), g(), m_2d(), c()], + {}, + _sfdp_extra_check(aten.div.Tensor), + ), + # TODO: Enable CUDA after solving Bert accuracy issue of calling efficient attention + ( + _sfdp_pattern_16, + _sfdp_replacement_16, + [g(), g(), g(), m(), c()], + d, + _sfdp_extra_check(aten.div.Tensor, disable_cuda=True), + ), + ( + _sfdp_pattern_16, + _sfdp_replacement_16, + [g_bs1(), g_bs1(), g_bs1(), m_bs1(), c()], + d, + _sfdp_extra_check(aten.div.Tensor, disable_cuda=True), + ), + ( + _sfdp_pattern_17, + _sfdp_replacement_17, + [g(), g(), g(), m_2d(), c()], + d, + _sfdp_extra_check(aten.div.Tensor), + ), + ( + _sfdp_pattern_18, + _sfdp_replacement_18, + [g(), g(), g(), m_bool()], + d, + _sfdp_params_check, + ), + ( + _sfdp_pattern_18, + _sfdp_replacement_18, + [g_bs1(), g_bs1(), g_bs1(), m_bs1_bool()], + d, + _sfdp_params_check, + ), + ( + _sfdp_pattern_19, + _sfdp_replacement_19, + [g(), g(), g(), b_bool(), b_float()], + d, + _sfdp_params_check, + ), + ( + _sfdp_pattern_20, + _sfdp_replacement_20, + [g(), g(), g(), m_2d()], + d, + _sfdp_extra_check(aten.div.Tensor), + ), + ( + _sfdp_pattern_21, + _sfdp_replacement_21, + [g(), g(), g(), m_float()], + {}, + _sfdp_params_check, + ), + ( + _sfdp_pattern_21, + _sfdp_replacement_21, + [g_bs1(), g_bs1(), g_bs1(), m_bs1_float()], + {}, + _sfdp_params_check, + ), + ( + _sfdp_pattern_22, + _sfdp_replacement_22, + [g(), g(), g(), m_float()], + {}, + _sfdp_params_check, + ), + ( + _sfdp_pattern_22, + _sfdp_replacement_22, + [g_bs1(), g_bs1(), g_bs1(), m_bs1_float()], + {}, + _sfdp_params_check, + ), + ( + _sfdp_pattern_23, + _sfdp_replacement_23, + [g(), g(), g()], + {}, + _sfdp_params_check, + ), + ( + _sfdp_pattern_23, + _sfdp_replacement_23, + [g_bs1(), g_bs1(), g_bs1()], + {}, + _sfdp_params_check, + ), + ( + _sfdp_pattern_24, + _sfdp_replacement_24, + [g(), g(), g(), b_float()], + {}, + _sfdp_extra_check, + ), + ] + mask_fp32_patterns = ["pattern_16"] + if dtype == torch.half: + # Add inputs of bf16 q/k/v and fp32 mask, for models like albert. + candidates.append( + ( + _sfdp_pattern_16, + _sfdp_replacement_16, + [g(), g(), g(), m_float(), c()], + d, + _sfdp_extra_check(aten.div.Tensor, disable_cuda=True), + ) + ) + candidates.append( + ( + _sfdp_pattern_16, + _sfdp_replacement_16, + [g_bs1(), g_bs1(), g_bs1(), m_bs1_float(), c()], + d, + _sfdp_extra_check(aten.div.Tensor, disable_cuda=True), + ) + ) + + for pattern, replacement, args, workaround, extra_check in candidates: + # XXX: when adding a new pattern, re-run `gen_attention_patterns` so the pattern + # gets serialized to a python file and does not require tracing at runtime. + assert isinstance(workaround, dict) + name = pattern.__name__ + + if dtype != torch.float: + name += "_half" + if ( + any(p in name for p in mask_fp32_patterns) + and args[3].dtype == torch.float32 + ): + name += "_mask_fp32" + if args[0].size(0) == 1: + name += "_bs1" + + training_name = name + "_training" + yield ( + training_name, + { + "search_fn": pattern, + "replace_fn": replacement, + "example_inputs": args, + "trace_fn": joint_fwd_bwd, + "pass_dicts": patterns, + "extra_check": extra_check, + "scalar_workaround": workaround, + }, + ) + + if workaround: + assert len(workaround) == 1 and "dropout_p" in workaround + # functools.partial insufficient because we look at signature downstream + pattern = partialize_and_update_signature(pattern, dropout_p=0.0) + replacement = partialize_and_update_signature( + replacement, dropout_p=0.0 + ) + workaround = {} + + inference_name = name + "_inference" + yield ( + inference_name, + { + "search_fn": pattern, + "replace_fn": replacement, + "example_inputs": args, + "trace_fn": fwd_only, + "pass_dicts": patterns, + "extra_check": extra_check, + "scalar_workaround": workaround, + # with dropout turned into clone, we end up with a number of + # semantically identical graphs + "skip_duplicates": True, + }, + ) + + +@functools.cache +def _sfdp_init(): + for key, register_replacement_kwargs in _get_sfdp_patterns(): + gen_register_replacement(key, **register_replacement_kwargs) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/graph_view.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/graph_view.py new file mode 100644 index 0000000000000000000000000000000000000000..5758551a9b8a5cad4f2a5aa1a21357a9ab12cfcc --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/graph_view.py @@ -0,0 +1,240 @@ +from __future__ import annotations + +import itertools +import re +from typing import Any, Optional, TYPE_CHECKING, Union + +import torch.fx as fx # noqa: TC001 +from torch.utils._ordered_set import OrderedSet + + +if TYPE_CHECKING: + from collections.abc import Callable + + +def _get_module_stack(node: fx.Node) -> list[tuple[str, type[Any]]]: + nn_stack = node.meta.get("nn_module_stack", "") + if nn_stack: + return list(nn_stack.values()) + + fwd_nn_stack = node.meta.get("fwd_nn_module_stack", "") + if fwd_nn_stack: + return list(fwd_nn_stack.values()) + + return [] + + +def _addindent(s_: str, num_spaces: int) -> str: + s: list[str] = s_.split("\n") + # don't do anything for single-line stuff + if len(s) == 1: + return s_ + first: str = s.pop(0) + s: list[str] = [(num_spaces * " ") + line for line in s] + joint_s: str = "\n".join(s) + joint_s = first + "\n" + joint_s + return joint_s + + +class GraphView: + """ + A hierarchical class for organizing and managing torch.fx nodes by their module stack. + + This class provides a tree-like structure where each node in the hierarchy corresponds + to a module or submodule in a traced FX graph. Each `GraphView` instance can hold a list + of FX nodes (`self.data`) belonging to that module scope, maintain a unique set of nodes + (`self.unique_nodes`), and manage its child containers (`self.children`). + + Attributes: + name (str): The name of the module or container scope. + klass (type[Any]): The class type associated with this module/container. + data (list[fx.Node]): A list of FX graph nodes belonging to this module. + unique_nodes (OrderedSet[fx.Node]): A deduplicated set of nodes to ensure no duplicates. + children (dict[str, GraphView]): A mapping of child module names to their corresponding GraphView instances. + """ + + def __init__(self, name: str, klass: type[Any]) -> None: + self.name: str = name + self.klass: type[Any] = klass + self.data: list[fx.Node] = [] + self.unique_nodes: OrderedSet[fx.Node] = OrderedSet() + self.children: dict[str, GraphView] = {} + + def add(self, data: fx.Node) -> None: + if data not in self.unique_nodes: + self.data.append(data) + self.unique_nodes.add(data) + + def get_child( + self, module_stack: str, klass: Optional[type[Any]] = None + ) -> GraphView: + if module_stack not in self.children: + new_stack = GraphView(module_stack, klass or self.klass) + self.children[module_stack] = new_stack + return self.children[module_stack] + + def __getitem__(self, name: str) -> GraphView: + return self.children[name] + + def __getattr__(self, name: str) -> GraphView: + return self.children[name] + + def __repr__(self) -> str: + child_lines: list[str] = [] + for name, child in self.children.items(): + mod_str = repr(child) + mod_str = _addindent(mod_str, 2) + child_lines.append(f"({name}): {mod_str}") + main_str = f"{self.klass.__name__}(" + if child_lines: + main_str += "\n " + "\n ".join(child_lines) + "\n" + main_str += ")" + return main_str + + +def _clean_stack_name(stack_name: str) -> str: + """ + Clean up FX node's nn_module_stack metadata string to match the module name hierarchies + + Example: + Input: "L['self']._modules['layers']['0']._modules['attention']" + Output: "layers.0.attention" + """ + cleaned = re.sub(r"^L\['self'\]\.?", "", stack_name) + parts = re.findall(r"\['([^']+)'\]", cleaned) + return ".".join(parts) if parts else cleaned + + +def _is_root(stack: str) -> bool: + return stack == "" + + +def make_graph_view( + graph: fx.Graph, + module_stack_fn: None | Callable[[fx.Node], list[tuple[str, type[Any]]]] = None, +) -> Optional[GraphView]: + """ + Code from: https://github.com/meta-pytorch/autoparallel/pull/158 + + Make a graph view from the fx.Graph. This is a tree structure that + represents the module hierarchy of the graph, and enables us to + easily find the nodes that belong to each module, and gives a slightly + easier way of visualize different parts of the graph by extracting + subgraphs that belong to a particular module FQN. + + For example, if we have the following model with module hierarchy: + + Transformer( + (tok_embeddings): Embedding(128256, 4096) + (layers): ModuleDict( + (0): TransformerBlock( + (attention): Attention( + (wq): Linear(in_features=4096, out_features=4096, bias=False) + (wk): Linear(in_features=4096, out_features=1024, bias=False) + (wv): Linear(in_features=4096, out_features=1024, bias=False) + (wo): Linear(in_features=4096, out_features=4096, bias=False) + (sdpa): ScaledDotProductAttention() + ) + (feed_forward): FeedForward( + (w1): Linear(in_features=4096, out_features=14336, bias=False) + (w2): Linear(in_features=14336, out_features=4096, bias=False) + (w3): Linear(in_features=4096, out_features=14336, bias=False) + ) + (attention_norm): RMSNorm((4096,), eps=1e-05, elementwise_affine=True) + (ffn_norm): RMSNorm((4096,), eps=1e-05, elementwise_affine=True) + ) + ) + (norm): RMSNorm((4096,), eps=1e-05, elementwise_affine=True) + (output): Linear(in_features=4096, out_features=128256, bias=False) + ) + + Then we can get a GraphView for the fx.Graph that enables us to do + + graph_view = make_graph_view(graph) + subgraph = get_subgraph_by_path(graph_view, "layers.0") + + where subgraph contains all the nodes that belong to this region + + module_stack_fn: Optional callable for extracting module hierarchy information from nodes. + + Signature: Callable[[fx.Node], list[tuple[str, type[Any]]]] + + Takes an FX node and returns a list of (module_path, module_class) tuples representing + the nested module hierarchy for that node, ordered from outermost to innermost scope. + + - module_path (str): Dot-separated path identifying the module in the hierarchy + (e.g., "layers.0.attention.wq") + - module_class (type): The Python class type of the module + + This enables custom logic for determining module membership, useful for: + - Graphs without standard nn_module_stack metadata + - Filtering or grouping nodes by custom criteria + + Example of getting the module stack from annotation: + + def module_stack_fn(node): + module_stack = node.meta.get("custom", {}).get("module_path", "") + return [(module_stack, torch.nn.Module)] + + If None, defaults to extracting from node.meta["nn_module_stack"] or + node.meta["fwd_nn_module_stack"]. + """ + + def nn_module_stack_meta(node: fx.Node) -> list[tuple[str, type[Any]]]: + result = [] + for module_stack, module_class in _get_module_stack(node): + module_stack = _clean_stack_name(module_stack) + result.append((module_stack, module_class)) + return result + + if module_stack_fn is None: + module_stack_fn = nn_module_stack_meta + nodes: list[fx.Node] = list(graph.nodes) + nodes_by_module_stack_root: GraphView | None = None + for node in nodes: + for module_stack, module_class in module_stack_fn(node): + nodes_by_module_stack: GraphView | None = nodes_by_module_stack_root + for name in module_stack.split("."): + if nodes_by_module_stack is None: + nodes_by_module_stack = GraphView(name, module_class) + nodes_by_module_stack_root = nodes_by_module_stack + if _is_root(module_stack): + new_stack: GraphView = nodes_by_module_stack + else: + new_stack = nodes_by_module_stack.get_child(name, module_class) + nodes_by_module_stack = new_stack + nodes_by_module_stack.add(node) + + return nodes_by_module_stack_root + + +def get_subgraph_by_path( + graph_view: GraphView, paths: Union[str, list[str]] +) -> list[fx.Node]: + """ + Get subgraph by path(s). + Args: + graph_view (object): Root graph view object. + paths (str or list of str): Path(s) to subgraph. + Returns: + list[fx.Node]: fx nodes belong to the subgraph + """ + + def get_node_by_path(node: GraphView, path: str) -> GraphView: + for p in path.split("."): + if p in node.children: + node = node.children[p] + else: + return GraphView("", object) + return node + + if isinstance(paths, list): + nodes = list( + itertools.chain.from_iterable( + get_node_by_path(graph_view, p).data for p in paths + ) + ) + return nodes + else: + node = get_node_by_path(graph_view, paths) + return node.data diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/group_batch_fusion.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/group_batch_fusion.py new file mode 100644 index 0000000000000000000000000000000000000000..f46d4d3ba216f15da9464e6052c36bdaa8b7c68a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/group_batch_fusion.py @@ -0,0 +1,1440 @@ +# mypy: allow-untyped-defs +import collections +import logging +import operator +from collections import OrderedDict +from collections.abc import Iterable, Iterator +from typing import Any + +import torch +from torch._dynamo.utils import counters, is_node_meta_valid +from torch._logging import trace_structured +from torch.fx.passes.graph_transform_observer import GraphTransformObserver +from torch.utils._ordered_set import OrderedSet + +from .. import config +from ..pattern_matcher import ( + CallFunctionVarArgs, + get_arg_value, + stable_topological_sort, +) +from ..utils import OPTIMUS_EXCLUDE_POST_GRAD + + +try: + # importing this will register fbgemm lowerings for inductor + import deeplearning.fbgemm.fbgemm_gpu.fb.inductor_lowerings # noqa: F401 + + has_fbgemm = True +except Exception: + has_fbgemm = False + +aten = torch.ops.aten + +log = logging.getLogger(__name__) + +DEFAULT_BETA = 1 +DEFAULT_ALPHA = 1 + +MIN_FUSE_SET_SIZE = 5 +MAX_FUSE_SET_SIZE = 300 +MAX_FUSE_SEARCH_DEPTH = 5 +# The maximum tensor size that can go into the fusion group +MAX_FUSE_TENSOR_SIZE_GROUP_LINEAR = 4096 +# Whether we only fuse nodes with same parent node +FUSE_NODES_WITH_SAME_PARENT = False +# Whether we enable the add broadcast in batch linear +SHAPE_BROADCAST_BATCH_LINEAR = False +# Whether we enable the fuse nodes with same users +Fuse_NODES_WITH_SAME_USERS = False + +# exclude these nodes from BFS +# excluding get item improves optimizer compilation time by 60s +SEARCH_EXCLUSIONS = OrderedSet([operator.getitem]) + + +default_graph_search_options = { + "min_fuse_set_size": MIN_FUSE_SET_SIZE, + "max_fuse_set_size": MAX_FUSE_SET_SIZE, + "max_fuse_search_depth": MAX_FUSE_SEARCH_DEPTH, + "max_fuse_tensor_size_group_linear": MAX_FUSE_TENSOR_SIZE_GROUP_LINEAR, + "fuse_nodes_with_same_parent": FUSE_NODES_WITH_SAME_PARENT, + "shape_broadcast_batch_linear": SHAPE_BROADCAST_BATCH_LINEAR, + "fuse_nodes_with_same_users": Fuse_NODES_WITH_SAME_USERS, +} + +graph_search_options = default_graph_search_options + + +def update_stack_example_value(node, metadata, dim=0, op=torch.stack): + """ + Update the example value of the node in the graph to enable followup split cat opt. + """ + if node is not None and hasattr(node, "meta"): + if op is torch.stack: + example_value = torch.stack(metadata, dim=dim) + elif op is torch.unbind: + example_value = torch.unbind(metadata, dim=dim) # type: ignore[assignment] + else: + return + node.meta["example_value"] = example_value + + +def update_pointwise_example_value(pointwise_node, input, other, op): + """ + Update the example value of the add node in the graph to enable followup split cat opt. + """ + if pointwise_node is not None and hasattr(pointwise_node, "meta"): + if op is torch.add: + example_value = torch.add(input, other) + elif op is torch.mul: + example_value = torch.mul(input, other) + else: + return + pointwise_node.meta["example_value"] = example_value + + +class GroupBatchFusionBase: + def __init__(self, **kwargs) -> None: + self.graph_search_options = kwargs.pop( + "graph_search_options", default_graph_search_options + ) + + def match(self, node): + raise NotImplementedError("match called on base") + + def fuse(self, graph, subset): + raise NotImplementedError("fuse called on base") + + +PRE_GRAD_FUSIONS: dict[str, GroupBatchFusionBase] = {} +POST_GRAD_FUSIONS: dict[str, GroupBatchFusionBase] = {} + + +def register_fusion(name: str, pre_grad=True): + def decorator(fusion_cls: GroupBatchFusionBase): + if pre_grad: + PRE_GRAD_FUSIONS[name] = fusion_cls + else: + POST_GRAD_FUSIONS[name] = fusion_cls + return fusion_cls + + return decorator + + +def list_group_batch_fusions(pre_grad=True) -> list[str]: + if pre_grad: + return list(PRE_GRAD_FUSIONS.keys()) + else: + return list(POST_GRAD_FUSIONS.keys()) + + +def decompose_stack(graph: torch.fx.GraphModule, input_tensors: list[Any]) -> Any: + unsqueezed_inputs = [] + unsqueezed_inputs_meta = [] + for input_tensor in input_tensors: + unsqueezed_input = graph.call_function( # type: ignore[operator] + aten.unsqueeze, args=(input_tensor,), kwargs={"dim": 0} + ) + unsqueezed_inputs.append(unsqueezed_input) + unsqueezed_input.meta["val"] = aten.unsqueeze(input_tensor.meta["val"], dim=0) # type: ignore[assignment] + unsqueezed_inputs_meta.append(unsqueezed_input.meta["val"]) + stacked_inputs = graph.call_function( # type: ignore[operator] + aten.cat, args=(unsqueezed_inputs,), kwargs={"dim": 0} + ) + stacked_inputs.meta["val"] = aten.cat(unsqueezed_inputs_meta, dim=0) # type: ignore[assignment] + return stacked_inputs + + +class GroupFusion(GroupBatchFusionBase): + """ + Fuse ops in a group way, e.g, fuse mm/addmm of arbitrary input shapes with fbgemm.gmm. + """ + + +class BatchFusion(GroupBatchFusionBase): + """ + Fuse ops in a batch way, e.g, fuse mm/addmm of same input shapes with bmm. + """ + + +class BatchPointwiseOpsFusionFactory(BatchFusion): + def __init__(self, op, **kwargs) -> None: + super().__init__(**kwargs) + self.op = op + + +@register_fusion("batch_linear_post_grad", pre_grad=False) +class PostGradBatchLinearFusion(BatchFusion): + """ + Fuse ops in a batch way in post grad (aten level). + """ + + def _addmm_node_can_be_fused(self, node: torch.fx.Node) -> bool: + # pyre-fixme[7]: Incompatible return type + return ( + node.kwargs.get("beta", DEFAULT_BETA) == DEFAULT_BETA + and node.kwargs.get("alpha", DEFAULT_ALPHA) == DEFAULT_ALPHA # type: ignore[return-value] + ) + + def _is_input_2d(self, input: torch.fx.Node) -> bool: + input_shapes = input.meta["val"].shape + return ( + len(input_shapes) == 2 + and isinstance(input_shapes[0], int) + and isinstance(input_shapes[1], int) + ) + + def match(self, node: torch.fx.Node) -> tuple[str, int, int, int, bool, str] | None: + if CallFunctionVarArgs(aten.mm).match(node): + input_m, weight_m = node.args + bias_m = None + + elif CallFunctionVarArgs(aten.addmm.default).match( + node + ) and self._addmm_node_can_be_fused(node): + bias_m, input_m, weight_m = node.args + else: + return None + # get the user of the node + if self.graph_search_options.get("fuse_nodes_with_same_users", False): + users = [user.target for user in node.users] + else: + users = "" # type: ignore[assignment] + # only handle the cases where inputs are 2D tensors + if not self._is_input_2d(input_m) or not self._is_input_2d(weight_m): # type: ignore[arg-type] + return None + m, k = input_m.meta["val"].shape # type: ignore[union-attr] + n = weight_m.meta["val"].shape[1] # type: ignore[union-attr] + batch_key = ("batch_linear_post_grad", m, k, n, bias_m is not None, str(users)) + return batch_key + + def fuse(self, graph: torch.fx.GraphModule, subset: list[torch.fx.Node]): + batch_inputs = [] + batch_weights = [] + batch_biases = [] + batch_nodes = [] + batch_inputs_meta = [] + batch_weights_meta = [] + batch_biases_meta = [] + + for node in subset: + if CallFunctionVarArgs(aten.addmm.default).match(node): + bias, input, weight = node.args + elif CallFunctionVarArgs(aten.mm.default).match(node): + input, weight = node.args + bias = None + batch_nodes.append(node) + batch_inputs.append(input) # type: ignore[possibly-undefined] + batch_weights.append(weight) # type: ignore[possibly-undefined] + batch_biases.append(bias) # type: ignore[possibly-undefined] + batch_inputs_meta.append(input.meta) # type: ignore[possibly-undefined, union-attr] + batch_weights_meta.append(weight.meta) # type: ignore[possibly-undefined, union-attr] + if bias is not None: # type: ignore[possibly-undefined] + batch_biases_meta.append(bias.meta) # type: ignore[possibly-undefined, union-attr] + else: + batch_biases_meta.append(None) + + with graph.inserting_before(subset[-1]): # type: ignore[operator] + fused_inputs = decompose_stack(graph, batch_inputs) + fused_weights = decompose_stack(graph, batch_weights) + fused_inputs_meta_val = torch.stack( + [input["val"] for input in batch_inputs_meta] + ) + fused_weights_meta_val = torch.stack( + [weight["val"] for weight in batch_weights_meta] + ) + fused_bmm = graph.call_function( # type: ignore[operator] + aten.bmm, + args=(fused_inputs, fused_weights), + ) + fused_bmm.meta["val"] = aten.bmm( + fused_inputs_meta_val, fused_weights_meta_val + ) + for i, original_mm in enumerate(batch_nodes): + has_bias = False + with graph.inserting_after(fused_bmm): # type: ignore[operator] + new_mm = graph.call_function(aten.select, args=((fused_bmm, 0, i))) # type: ignore[operator] + new_mm.meta["val"] = aten.select(fused_bmm.meta["val"], 0, i) + if batch_biases[i]: + has_bias = True + # broadcast the bias to the same shape as the mm output + if self.graph_search_options.get( + "shape_broadcast_batch_linear", False + ): + broadcast_shape = torch.broadcast_shapes( + batch_biases_meta[i]["val"].shape, new_mm.meta["val"].shape + ) + broadcast_bias = graph.call_function( # type: ignore[operator] + aten.broadcast_to.default, + args=(batch_biases[i],), + kwargs={"size": broadcast_shape}, + ) + broadcast_bias.meta["val"] = aten.broadcast_to( + batch_biases_meta[i]["val"], broadcast_shape + ) # type: ignore[assignment] + new_bias_add = graph.call_function( # type: ignore[operator] + aten.add.Tensor, args=((broadcast_bias, new_mm)) + ) + new_bias_add.meta["val"] = aten.add.Tensor( + broadcast_bias.meta["val"], new_mm.meta["val"] + ) + else: + new_bias_add = graph.call_function( # type: ignore[operator] + aten.add, args=((batch_biases[i], new_mm)) + ) + new_bias_add.meta["val"] = aten.add.Tensor( + batch_biases_meta[i]["val"], new_mm.meta["val"] + ) + new_mm_cont = new_bias_add if has_bias else new_mm # type: ignore[possibly-undefined] + original_mm.replace_all_uses_with(new_mm_cont) + new_mm_cont.meta.update(original_mm.meta) + graph.erase_node(original_mm) # type: ignore[operator] + counters["inductor"]["batch_linear_post_grad"] += 1 + + +@register_fusion("group_linear", pre_grad=False) +class GroupLinearFusion(GroupFusion): + def _addmm_node_can_be_fused(self, node: torch.fx.Node): + input_shape = node.args[1].meta["val"].shape # type: ignore[union-attr] + weight_shape = node.args[2].meta["val"].shape # type: ignore[union-attr] + return ( + node.kwargs.get("beta", DEFAULT_BETA) == DEFAULT_BETA + and node.kwargs.get("alpha", DEFAULT_ALPHA) == DEFAULT_ALPHA + and len(input_shape) == 2 + and len(weight_shape) == 2 + and all(x % 2 == 0 for x in input_shape + weight_shape) + and all( + shape <= self.graph_search_options["max_fuse_tensor_size_group_linear"] + for shape in input_shape + weight_shape + ) + ) + + def _mm_node_can_be_fused(self, node: torch.fx.Node): + input_shape = node.args[0].meta["val"].shape # type: ignore[union-attr] + weight_shape = node.args[1].meta["val"].shape # type: ignore[union-attr] + return ( + len(input_shape) == 2 + and len(weight_shape) == 2 + and all(x % 2 == 0 for x in input_shape + weight_shape) + and all( + shape <= self.graph_search_options["max_fuse_tensor_size_group_linear"] + for shape in input_shape + weight_shape + ) + ) + + def match(self, node: torch.fx.Node) -> tuple[str, bool] | None: + if CallFunctionVarArgs(aten.mm.default).match( + node + ) and self._mm_node_can_be_fused(node): + group_key = ("group_linear", True) + elif CallFunctionVarArgs(aten.addmm.default).match( + node + ) and self._addmm_node_can_be_fused(node): + bias = node.args[0] + group_key = ("group_linear", bias is None) + else: + group_key = None + return group_key + + def fuse(self, graph: torch.fx.GraphModule, subset: list[torch.fx.Node]): + group_inputs = [] + group_weights = [] + group_biases = [] + group_nodes = [] + for node in subset: + if CallFunctionVarArgs(aten.addmm.default).match(node): + bias, input, weight = node.args + else: + assert CallFunctionVarArgs(aten.mm.default).match(node) + input, weight = node.args + bias = None + + group_nodes.append(node) + group_inputs.append(input) + group_weights.append(weight) + group_biases.append(bias) + + if all(bias is None for bias in group_biases): + group_biases = None # type: ignore[assignment] + + with graph.inserting_before(subset[0]): # type: ignore[operator] + fused_mm = graph.call_function( # type: ignore[operator] + torch.ops.fbgemm.gmm.default, + args=(group_inputs, group_weights, group_biases), + kwargs={"smart_fused": True}, + ) + + for i, original_mm in enumerate(group_nodes): + with graph.inserting_after(fused_mm): # type: ignore[operator] + new_mm = graph.call_function(operator.getitem, args=(fused_mm, i)) # type: ignore[operator] + original_mm.replace_all_uses_with(new_mm) + new_mm.meta.update(original_mm.meta) + graph.erase_node(original_mm) # type: ignore[operator] + counters["inductor"]["group_linear"] += 1 + + +class BatchPointwiseMathOpsPostGradFusion(BatchPointwiseOpsFusionFactory): + """ + Batch pointwise math operator (e.g., add, mul) in post grad pass. + """ + + def __init__(self, op, **kwargs) -> None: + super().__init__(op, **kwargs) + self.op = op + + def _pointwise_node_can_be_fused(self, node: torch.fx.Node): + # note: we only consider the case where the inputs are tensors + # for mixed precision training, we need to make sure the inputs + # of the aten.cat when do the stack should be the same dtype + # otherwise, the output of the aten.cat may be not the same as + # its inputs, and cause dtype not same error in mm or addmm + input, other = node.args + return ( + input.meta["val"].shape == other.meta["val"].shape # type: ignore[union-attr] + # input and other can be scalars, where they have no attribute 'meta' + if hasattr(input, "meta") + and hasattr(other, "meta") + and is_node_meta_valid(input) # type: ignore[arg-type, union-attr] + and is_node_meta_valid(other) # type: ignore[arg-type, union-attr] + # torch.SymInt or torch.SymFloat object has no attribute 'shape' + and isinstance(input.meta["val"], torch.Tensor) # type: ignore[union-attr] + and isinstance(other.meta["val"], torch.Tensor) # type: ignore[union-attr] + else False + ) + + def match(self, node: torch.fx.Node): + if CallFunctionVarArgs(self.op).match( + node + ) and self._pointwise_node_can_be_fused(node): + alpha = node.kwargs.get("alpha", DEFAULT_ALPHA) + rounding_mode = node.kwargs.get("rounding_mode", None) + input, other = node.args + shape = list(input.meta["val"].shape) # type: ignore[union-attr] + if self.graph_search_options.get("fuse_nodes_with_same_parent", False): + # only consider the linear case so far + # pyre-fixme[16] + if input.target is aten.select or other.target is aten.select: # type: ignore[union-attr] + parent = ( + # pyre-fixme[16] + input.args[0] # type: ignore[union-attr] + # pyre-fixme[16] + if input.target is aten.select # type: ignore[union-attr] + else other.args[0] # type: ignore[union-attr] + ) + else: + parent = "" + else: + parent = "" + group_key = ( + "batch_aten_" + self.op.__name__.lower().split(".")[0], + str(shape), + str(input.meta["val"].dtype), # type: ignore[union-attr] + str(other.meta["val"].dtype), # type: ignore[union-attr] + str(alpha), + str(rounding_mode), + str(parent), + ) + else: + group_key = None + return group_key + + def fuse(self, graph: torch.fx.GraphModule, subset: list[torch.fx.Node]): + batch_inputs, batch_others = [], [] + alpha = subset[0].kwargs.get("alpha", DEFAULT_ALPHA) + batch_inputs_meta, batch_others_meta = [], [] + + for node in subset: + input, other = node.args + batch_inputs.append(input) + batch_others.append(other) + batch_inputs_meta.append(input.meta) # type: ignore[possibly-undefined, union-attr] + batch_others_meta.append(other.meta) # type: ignore[possibly-undefined, union-attr] + + with graph.inserting_before(subset[0]): # type: ignore[operator] + stack_inputs = decompose_stack(graph, batch_inputs) + stack_others = decompose_stack(graph, batch_others) + stack_inputs_meta = torch.stack( + [input["val"] for input in batch_inputs_meta] + ) + stack_others_meta = torch.stack( + [other["val"] for other in batch_others_meta] + ) + + batch_op = graph.call_function( # type: ignore[operator] + self.op, + args=(stack_inputs, stack_others), + kwargs={"alpha": alpha} if self.op == aten.add.Tensor else {}, + ) + batch_op.meta["val"] = self.op(stack_inputs_meta, stack_others_meta) + for i, original_add in enumerate(subset): + with graph.inserting_after(batch_op): # type: ignore[operator] + new_add = graph.call_function( # type: ignore[operator] + torch.ops.aten.select, args=((batch_op, 0, i)) + ) + original_add.replace_all_uses_with(new_add) + new_add.meta.update(original_add.meta) + graph.erase_node(original_add) # type: ignore[operator] + counters["inductor"][ + "batch_aten_" + self.op.__name__.lower().split(".")[0] + ] += 1 + + +@register_fusion("batch_linear_lhs") +class BatchLinearLHSFusion(BatchFusion): + """ + Batch linear left-hand side fusion. This pass tries to fuse the following patterns: + + torch.nn.functional.linear(x, w1), linear(x, w2),... * linear(x, wn) + -> torch.mm(x, torch.cat([w1, w2,... * wn]).transpose(0, 1)) + + We have a separate pass to eliminate contiguous transpose in a generic way. + """ + + def match(self, node: torch.fx.Node) -> tuple[str, bool, Any] | None: + if CallFunctionVarArgs(torch.nn.functional.linear).match( + node + ) and is_linear_node_can_be_fused(node): + input = get_arg_value(node, 0, "input") + bias = get_arg_value(node, 2, "bias") + group_key = ("batch_linear_lhs", bias is None, input) + else: + group_key = None + return group_key + + def fuse(self, graph: torch.fx.GraphModule, subset: list[torch.fx.Node]): + batch_nodes = [] + batch_input = None + batch_weights, batch_weights_meta = [], [] + batch_biases, batch_biases_meta = [], [] + split_sections = [] + for node in subset: + input = get_arg_value(node, 0, "input") + weight = get_arg_value(node, 1, "weight") + bias = get_arg_value(node, 2, "bias") + batch_nodes.append(node) + if batch_input is None: + batch_input = input + else: + assert batch_input is input + batch_weights.append(weight) + batch_weights_meta.append(weight.meta["example_value"]) + if bias: + batch_biases.append(bias) + batch_biases_meta.append(bias.meta["example_value"]) + split_sections.append(weight.meta["example_value"].shape[0]) + + with graph.inserting_before(subset[0]): # type: ignore[operator] + cat_weights = graph.call_function( # type: ignore[operator] + torch.cat, args=(batch_weights,), kwargs={"dim": 0} + ) + cat_weights.meta["example_value"] = torch.cat(batch_weights_meta, dim=0) + transposed_weights = graph.call_function( # type: ignore[operator] + torch.transpose, args=(cat_weights, 0, 1) + ) + transposed_weights.meta["example_value"] = torch.transpose( + cat_weights.meta["example_value"], 0, 1 + ) + if len(batch_biases) > 0: + cat_biases = graph.call_function( # type: ignore[operator] + torch.cat, args=(batch_biases,), kwargs={"dim": 0} + ) + cat_biases.meta["example_value"] = torch.cat(batch_biases_meta, dim=0) + fused_lhs = graph.call_function( # type: ignore[operator] + torch.addmm, + args=(cat_biases, batch_input, transposed_weights), + ) + fused_lhs.meta["example_value"] = torch.addmm( + cat_biases.meta["example_value"], + batch_input.meta["example_value"], # type: ignore[union-attr] + transposed_weights.meta["example_value"], + ) + else: + fused_lhs = graph.call_function( # type: ignore[operator] + torch.mm, + args=(batch_input, transposed_weights), + ) + fused_lhs.meta["example_value"] = torch.mm( + batch_input.meta["example_value"], # type: ignore[union-attr] + transposed_weights.meta["example_value"], + ) + fused_lhs_list = graph.call_function( # type: ignore[operator] + torch.split, args=(fused_lhs, split_sections), kwargs={"dim": 1} + ) + + for i, node in enumerate(batch_nodes): + with graph.inserting_after(fused_lhs_list): # type: ignore[operator] + new_node = graph.call_function( # type: ignore[operator] + operator.getitem, args=(fused_lhs_list, i) + ) + node.replace_all_uses_with(new_node) + new_node.meta.update(node.meta) + graph.erase_node(node) # type: ignore[operator] + counters["inductor"]["batch_linear_lhs"] += 1 + + +# Poor person's check for if a node in the graph mutates its input. +# (the graph is torch IR, so we will see torch fns and python operators) +def _is_mutable_node(tgt): + if str(tgt).endswith("_"): + # e.g. torch.mul_, torch.Tensor.mul_ + return True + if ( + hasattr(tgt, "__module__") + and tgt.__module__ == "_operator" + and tgt.__name__.startswith("i") + ): + # e.g. operator.iand, operator.imul + return True + return False + + +def is_linear_node_can_be_fused(node: torch.fx.Node): + input = get_arg_value(node, 0, "input") + weight = get_arg_value(node, 1, "weight") + return ( + is_node_meta_valid(node) + and is_node_meta_valid(input) + and is_node_meta_valid(weight) + and len(input.meta["example_value"].shape) == 2 + and len(weight.meta["example_value"].shape) == 2 + # the mm -> bmm transform adds an unbind() op, + # which is not safe for autograd when the output of the mm is mutated. + # don't pattern match if any users of the mm mutate the input. + and not any(_is_mutable_node(user.target) for user in node.users) + ) + + +@register_fusion("batch_linear") +class PreGradBatchLinearFusion(BatchFusion): + """ + Batch linear fusion in pre grad pass. + Fuse linear with same size with torch.baddmm + """ + + def _getitem_args(self, getitem_node: torch.fx.Node): + if getitem_node.target != operator.__getitem__ or ( + getitem_node.op != "call_function" + ): + return None + return getitem_node.args[0] + + def match(self, node: torch.fx.Node): + if CallFunctionVarArgs(torch.nn.functional.linear).match( + node + ) and is_linear_node_can_be_fused(node): + input = get_arg_value(node, 0, "input") + weight = get_arg_value(node, 1, "weight") + bias = get_arg_value(node, 2, "bias") + if self.graph_search_options.get("fuse_nodes_with_same_users", False): + users = [user.target for user in node.users] + else: + users = "" # type: ignore[assignment] + group_key = ( + "batch_linear", + self._getitem_args(input), + str(input.meta["example_value"].shape), + str(weight.meta["example_value"].shape), + bias is None, + str(users), + ) + else: + group_key = None + return group_key + + def fuse(self, graph: torch.fx.GraphModule, subset: list[torch.fx.Node]): + batch_nodes = [] + batch_inputs = [] + batch_weights = [] + batch_biases = [] + batch_inputs_metadata = [] + batch_weights_metadata = [] + batch_biases_metadata = [] + for node in subset: + batch_nodes.append(node) + input = get_arg_value(node, 0, "input") + batch_inputs.append(input) + batch_inputs_metadata.append(input.meta["example_value"]) + weight = get_arg_value(node, 1, "weight") + batch_weights.append(weight) + batch_weights_metadata.append(weight.meta["example_value"]) + bias = get_arg_value(node, 2, "bias") + batch_biases.append(bias) + if bias is not None and hasattr(bias, "meta"): + batch_biases_metadata.append(bias.meta["example_value"]) + + with graph.inserting_before(subset[0]): # type: ignore[operator] + stack_inputs = graph.call_function( # type: ignore[operator] + torch.stack, args=(batch_inputs,), kwargs={"dim": 0} + ) + update_stack_example_value(stack_inputs, batch_inputs_metadata) + stack_weights = graph.call_function( # type: ignore[operator] + torch.stack, args=(batch_weights,), kwargs={"dim": 0} + ) + update_stack_example_value(stack_weights, batch_weights_metadata) + transpose_weight = graph.call_function( # type: ignore[operator] + torch.transpose, args=(stack_weights, 1, 2) + ) + transpose_weight.meta["example_value"] = torch.transpose( + stack_weights.meta["example_value"], 1, 2 + ) + if all(bias is None for bias in batch_biases): + bmm = graph.call_function( # type: ignore[operator] + torch.bmm, + args=(stack_inputs, transpose_weight), + ) + bmm.meta["example_value"] = torch.bmm( + stack_inputs.meta["example_value"], + transpose_weight.meta["example_value"], + ) + bmm_meta = bmm.meta["example_value"] + else: + stack_biases = graph.call_function( # type: ignore[operator] + torch.stack, args=(batch_biases,), kwargs={"dim": 0} + ) + update_stack_example_value(stack_biases, batch_biases_metadata) + unsqueeze_biases = graph.call_function( # type: ignore[operator] + torch.unsqueeze, args=(stack_biases, 1) + ) + unsqueeze_biases.meta["example_value"] = torch.unsqueeze( + stack_biases.meta["example_value"], 1 + ) + bmm = graph.call_function( # type: ignore[operator] + torch.baddbmm, + args=(unsqueeze_biases, stack_inputs, transpose_weight), + ) + try: + # it will have runtime error to broadcast when it has dynamic shape included + # in the meta data, so we need to skip the update meta data + bmm.meta["example_value"] = torch.baddbmm( + unsqueeze_biases.meta["example_value"], + stack_inputs.meta["example_value"], + transpose_weight.meta["example_value"], + ) + bmm_meta = bmm.meta["example_value"] + except Exception as e: + log.debug( + f" exception when update bmm meta data with stack error tracekey {e}" # noqa: G004 + ) + bmm_meta = None + + bmm = graph.call_function(torch.unbind, args=(bmm,), kwargs={"dim": 0}) # type: ignore[operator] + if bmm_meta is not None: + bmm.meta["example_value"] = torch.unbind(bmm_meta, dim=0) + for i, linear in enumerate(batch_nodes): + with graph.inserting_after(bmm): # type: ignore[operator] + getitem = graph.call_function(operator.getitem, args=(bmm, i)) # type: ignore[operator] + linear.replace_all_uses_with(getitem) + getitem.meta.update(linear.meta) + graph.erase_node(linear) # type: ignore[operator] + counters["inductor"]["batch_linear"] += 1 + + +@register_fusion("batch_layernorm") +class BatchLayernormFusion(BatchFusion): + """ + Batch layer norm fusion in pre grad pass + """ + + def match(self, node: torch.fx.Node): + if CallFunctionVarArgs(torch.nn.functional.layer_norm).match(node): + input = get_arg_value(node, 0, "input") + weight = get_arg_value(node, 2, "weight") + bias = get_arg_value(node, 3, "bias") + if self.graph_search_options.get("fuse_nodes_with_same_users", False): + users = [user.target for user in node.users] + else: + users = "" # type: ignore[assignment] + group_key = ( + ( + "batch_layernorm", + str(input.meta["example_value"].shape), + str(weight.meta["example_value"].shape) + if weight is not None + else "", + str(bias.meta["example_value"].shape) if bias is not None else "", + str(get_arg_value(node, 1, "normalized_shape")), + str(get_arg_value(node, 4, "eps")), + str(users), + ) + if "example_value" in input.meta + and is_node_meta_valid(weight) + and is_node_meta_valid(bias) + else None + ) + else: + group_key = None + return group_key + + def fuse(self, graph: torch.fx.GraphModule, subset: list[torch.fx.Node]): + group_inputs = [] + group_shapes = [] + group_weights = [] + group_biases = [] + group_epss = [] + group_nodes = [] + group_inputs_metadata = [] + group_biases_metadata = [] + group_weights_metadata = [] + for node in subset: + group_nodes.append(node) + input = get_arg_value(node, 0, "input") + group_inputs.append(input) + group_inputs_metadata.append(input.meta["example_value"]) + group_shapes.append(get_arg_value(node, 1, "normalized_shape")) + weight = get_arg_value(node, 2, "weight") + group_weights.append(weight) + if weight is not None and hasattr(weight, "meta"): + group_weights_metadata.append(weight.meta["example_value"]) + bias = get_arg_value(node, 3, "bias") + group_biases.append(bias) + if bias is not None and hasattr(bias, "meta"): + group_biases_metadata.append(bias.meta["example_value"]) + eps = get_arg_value(node, 4, "eps") + if eps is None: + eps = 1e-5 + group_epss.append(eps) + stack_dim = -1 - len(group_shapes[-1]) + + if all(bias is None for bias in group_biases): + group_biases = None # type: ignore[assignment] + if all(weight is None for weight in group_weights): + group_weights = None # type: ignore[assignment] + assert all(eps == group_epss[0] for eps in group_epss), ( + "all epsilon values must be equal" + ) + + with graph.inserting_before(subset[0]): # type: ignore[operator] + stack_input = graph.call_function( # type: ignore[operator] + torch.stack, args=(group_inputs,), kwargs={"dim": stack_dim} + ) + update_stack_example_value(stack_input, group_inputs_metadata, stack_dim) + if group_weights is not None: + stack_weight = graph.call_function( # type: ignore[operator] + torch.stack, args=(group_weights,), kwargs={"dim": 0} + ) + update_stack_example_value(stack_weight, group_weights_metadata) + else: + stack_weight = None + if group_biases is not None: + stack_bias = graph.call_function( # type: ignore[operator] + torch.stack, args=(group_biases,), kwargs={"dim": 0} + ) + update_stack_example_value(stack_bias, group_biases_metadata) + else: + stack_bias = None + + batch_layer_norm = graph.call_function( # type: ignore[operator] + torch.nn.functional.layer_norm, + args=(stack_input, group_shapes[-1]), + kwargs={"eps": group_epss[-1]}, + ) + batch_layer_norm.meta["example_value"] = stack_input.meta["example_value"] + + if group_weights is not None and group_biases is not None: + previous_batch_layer_norm_meta = batch_layer_norm.meta["example_value"] + batch_layer_norm = graph.call_function( # type: ignore[operator] + torch.mul, args=(stack_weight, batch_layer_norm) + ) + update_pointwise_example_value( + batch_layer_norm, + # pyrefly: ignore [missing-attribute] + stack_weight.meta["example_value"], + previous_batch_layer_norm_meta, + torch.mul, + ) + previous_batch_layer_norm_meta = batch_layer_norm.meta["example_value"] + batch_layer_norm = graph.call_function( # type: ignore[operator] + torch.add, args=(stack_bias, batch_layer_norm) + ) + update_pointwise_example_value( + batch_layer_norm, + # pyrefly: ignore [missing-attribute] + stack_bias.meta["example_value"], + previous_batch_layer_norm_meta, + torch.add, + ) + elif group_weights is not None and group_biases is None: + previous_batch_layer_norm_meta = batch_layer_norm.meta["example_value"] + # pyrefly: ignore [not-callable] + batch_layer_norm = graph.call_function( + torch.mul, args=(stack_weight, batch_layer_norm) + ) + update_pointwise_example_value( + batch_layer_norm, + # pyrefly: ignore [missing-attribute] + stack_weight.meta["example_value"], + previous_batch_layer_norm_meta, + torch.mul, + ) + elif group_weights is None and group_biases is not None: + previous_batch_layer_norm_meta = batch_layer_norm.meta["example_value"] + # pyrefly: ignore [not-callable] + batch_layer_norm = graph.call_function( + torch.add, args=(stack_bias, batch_layer_norm) + ) + update_pointwise_example_value( + batch_layer_norm, + # pyrefly: ignore [missing-attribute] + stack_bias.meta["example_value"], + previous_batch_layer_norm_meta, + torch.add, + ) + + batch_layer_norm_unbind = graph.call_function( # type: ignore[operator] + torch.unbind, + args=(batch_layer_norm,), + kwargs={"dim": stack_dim}, + ) + update_stack_example_value( + batch_layer_norm_unbind, + batch_layer_norm.meta["example_value"], + op=torch.unbind, + dim=stack_dim, + ) + + for i, node in enumerate(group_nodes): + with graph.inserting_after(batch_layer_norm_unbind): # type: ignore[operator] + new_node = graph.call_function( # type: ignore[operator] + operator.getitem, args=(batch_layer_norm_unbind, i) + ) + node.replace_all_uses_with(new_node) + new_node.meta.update(node.meta) + graph.erase_node(node) # type: ignore[operator] + counters["inductor"]["batch_layernorm"] += 1 + + +class BatchPointwiseOpsPreGradFusion(BatchPointwiseOpsFusionFactory): + """ + Batch pointwise ops (e.g., sigmoid, relu, tanh) fusion in pre grad pass. + We fuse it in random place, and the introduced stack node may be merged in split cat. + """ + + def __init__(self, op, **kwargs) -> None: + super().__init__(op, **kwargs) + self.op = op + + def match(self, node: torch.fx.Node): + input = get_arg_value(node, 0, "input") + if CallFunctionVarArgs(self.op).match(node) and is_node_meta_valid(node): + if self.graph_search_options.get("fuse_nodes_with_same_parent", False): + # pyre-fixme[16] + parent = node.args[0] + parent = parent.target if parent is not None else "" # type: ignore[union-attr] + else: + parent = "" + # for relu op, we also use the inplace to construct the key + group_key = ( + "batch_" + self.op.__name__.lower().split(".")[0], + str(input.meta["example_value"].shape), + str(node.kwargs.get("inplace", False)), + str(parent), + ) + else: + group_key = None + return group_key + + def fuse(self, graph: torch.fx.GraphModule, subset: list[torch.fx.Node]): + batch_nodes = [] + batch_inputs = [] + batch_inputs_metadata = [] + + for node in subset: + batch_nodes.append(node) + input = get_arg_value(node, 0, "input") + batch_inputs.append(input) + batch_inputs_metadata.append(input.meta["example_value"]) + + with graph.inserting_before(subset[0]): # type: ignore[operator] + stack_inputs = graph.call_function( # type: ignore[operator] + torch.stack, args=(batch_inputs,), kwargs={"dim": 0} + ) + update_stack_example_value(stack_inputs, batch_inputs_metadata) + if self.op is torch.nn.functional.relu: + batch_op = graph.call_function( # type: ignore[operator] + self.op, + args=(stack_inputs,), + kwargs={"inplace": subset[0].kwargs.get("inplace", False)}, + ) + batch_op.meta["example_value"] = self.op( + stack_inputs.meta["example_value"], + # pyrefly: ignore [bad-argument-type] + inplace=subset[0].kwargs.get("inplace", False), + ) + else: + batch_op = graph.call_function( # type: ignore[operator] + self.op, + args=(stack_inputs,), + ) + batch_op.meta["example_value"] = self.op( + stack_inputs.meta["example_value"] + ) + unbind_op = graph.call_function( # type: ignore[operator] + torch.unbind, args=(batch_op,), kwargs={"dim": 0} + ) + unbind_op.meta["example_value"] = torch.unbind( + batch_op.meta["example_value"], dim=0 + ) + for i, node in enumerate(batch_nodes): + with graph.inserting_after(unbind_op): # type: ignore[operator] + getitem = graph.call_function(operator.getitem, args=(unbind_op, i)) # type: ignore[operator] + node.replace_all_uses_with(getitem) + getitem.meta.update(node.meta) + graph.erase_node(node) # type: ignore[operator] + counters["inductor"]["batch_" + self.op.__name__.lower().split(".")[0]] += 1 + + +class BatchPointwiseOpsPostGradFusion(BatchPointwiseOpsFusionFactory): + """ + Batch pointwise ops (e.g., sigmoid, relu, tanh) fusion in post grad pass. + The introduced stack node may be merged in split cat. + """ + + def __init__(self, op, **kwargs) -> None: + super().__init__(op, **kwargs) + self.op = op + + def match(self, node: torch.fx.Node): + input = get_arg_value(node, 0, "input") + if CallFunctionVarArgs(self.op).match(node) and is_node_meta_valid(node): + # for relu op, we also use the inplace to construct the key + # we batch the ops with same parent to enable followup split cat + parent = node.args[0] + parent = ( + parent.target # type: ignore[union-attr] + if self.graph_search_options.get("fuse_nodes_with_same_parent", False) + else "" + ) + group_key = ( + "batch_aten_" + self.op.__name__.lower().split(".")[0], + str(input.meta["val"].shape), + str(node.kwargs.get("inplace", False)), + # pyre-fixme[16] + str(parent), + ) + else: + group_key = None + return group_key + + def fuse(self, graph: torch.fx.GraphModule, subset: list[torch.fx.Node]): + batch_nodes = [] + batch_inputs = [] + batch_inputs_metadata = [] + + for node in subset: + batch_nodes.append(node) + input = get_arg_value(node, 0, "input") + batch_inputs.append(input) + batch_inputs_metadata.append(input.meta["val"]) + + with graph.inserting_before(subset[0]): # type: ignore[operator] + stack_inputs = decompose_stack(graph, batch_inputs) + update_stack_example_value(stack_inputs, batch_inputs_metadata) + batch_op = graph.call_function( # type: ignore[operator] + self.op, + args=(stack_inputs,), + ) + for i, node in enumerate(batch_nodes): + with graph.inserting_after(batch_op): # type: ignore[operator] + getitem = graph.call_function(aten.select, args=(batch_op, 0, i)) # type: ignore[operator] + node.replace_all_uses_with(getitem) + getitem.meta.update(node.meta) + graph.erase_node(node) # type: ignore[operator] + counters["inductor"][ + "batch_aten_" + self.op.__name__.lower().split(".")[0] + ] += 1 + + +class BatchMathOpsPreGradFusion(BatchPointwiseOpsFusionFactory): + """ + Batch simple match related ops such as nan_to_num in pre grad pass. + """ + + def __init__(self, op, **kwargs): + super().__init__(op, **kwargs) + self.op = op + + def match(self, node: torch.fx.Node): + input = get_arg_value(node, 0, "input") + if CallFunctionVarArgs(self.op).match(node) and is_node_meta_valid(node): + # check the input has the same shape and its users have the same target + # check all clamp operators have the same min and max values, and + # nan_to_num operators use the same default value. + child = next(iter(node.users.keys())) + group_key = ( + str(input.meta["example_value"].shape) + + str(node.kwargs) + + str(child.target) + ) + else: + group_key = None + return group_key + + def fuse(self, graph: torch.fx.GraphModule, subset: list[torch.fx.Node]): + batch_nodes = [] + batch_inputs = [] + batch_inputs_metadata = [] + kwargs = subset[0].kwargs + + for node in subset: + batch_nodes.append(node) + input = get_arg_value(node, 0, "input") + batch_inputs.append(input) + batch_inputs_metadata.append(input.meta["example_value"]) + + with graph.inserting_before(subset[0]): # type: ignore[operator] + stack_inputs = graph.call_function( # type: ignore[operator] + torch.stack, args=(batch_inputs,), kwargs={"dim": 0} + ) + update_stack_example_value(stack_inputs, batch_inputs_metadata) + batch_op = graph.call_function( # type: ignore[operator] + self.op, + args=(stack_inputs,), + kwargs=kwargs, + ) + batch_op.meta["example_value"] = self.op( + stack_inputs.meta["example_value"], **kwargs + ) + unbind_op = graph.call_function( # type: ignore[operator] + torch.unbind, args=(batch_op,), kwargs={"dim": 0} + ) + unbind_op.meta["example_value"] = torch.unbind( + batch_op.meta["example_value"], dim=0 + ) + for i, node in enumerate(batch_nodes): + with graph.inserting_after(unbind_op): # type: ignore[operator] + getitem = graph.call_function(operator.getitem, args=(unbind_op, i)) # type: ignore[operator] + node.replace_all_uses_with(getitem) + getitem.meta.update(node.meta) + graph.erase_node(node) # type: ignore[operator] + counters["inductor"]["batch_" + self.op.__name__.lower().split(".")[0]] += 1 + + +@register_fusion("batch_tanh") +class BatchTanhPreGradFusion(BatchPointwiseOpsPreGradFusion): + def __init__(self, **kwargs) -> None: + super().__init__(torch.tanh, **kwargs) + + +@register_fusion("batch_sigmoid") +class BatchSigmoidPreGradFusion(BatchPointwiseOpsPreGradFusion): + def __init__(self, **kwargs) -> None: + super().__init__(torch.sigmoid, **kwargs) + + +@register_fusion("batch_relu") +class BatchReLuPreGradFusion(BatchPointwiseOpsPreGradFusion): + def __init__(self, **kwargs) -> None: + super().__init__(torch.nn.functional.relu, **kwargs) + + +@register_fusion("batch_detach") +class BatchDetachPreGradFusion(BatchMathOpsPreGradFusion): + def __init__(self, **kwargs): + super().__init__(torch.detach, **kwargs) + + +@register_fusion("batch_nan_to_num") +class BatchNanToNumPreGradFusion(BatchMathOpsPreGradFusion): + def __init__(self, **kwargs): + super().__init__(torch.nan_to_num, **kwargs) + + +@register_fusion("batch_clamp") +class BatchClampPreGradFusion(BatchMathOpsPreGradFusion): + def __init__(self, **kwargs): + super().__init__(torch.clamp, **kwargs) + + +@register_fusion("batch_dropout") +class BatchDropoutPreGradFusion(BatchMathOpsPreGradFusion): + def __init__(self, **kwargs): + super().__init__(torch.nn.functional.dropout, **kwargs) + + +@register_fusion("batch_aten_tanh", pre_grad=False) +class BatchTanhPostGradFusion(BatchPointwiseOpsPostGradFusion): + def __init__(self, **kwargs) -> None: + super().__init__(aten.tanh.default, **kwargs) + + +@register_fusion("batch_aten_sigmoid", pre_grad=False) +class BatchSigmoidPostGradFusion(BatchPointwiseOpsPostGradFusion): + def __init__(self, **kwargs) -> None: + super().__init__(aten.sigmoid.default, **kwargs) + + +@register_fusion("batch_aten_relu", pre_grad=False) +class BatchReLuPostGradFusion(BatchPointwiseOpsPostGradFusion): + def __init__(self, **kwargs) -> None: + super().__init__(aten.relu.default, **kwargs) + + +@register_fusion("batch_aten_add", pre_grad=False) +class BatchAddPostGradFusion(BatchPointwiseMathOpsPostGradFusion): + def __init__(self, **kwargs) -> None: + super().__init__(aten.add.Tensor, **kwargs) + + +@register_fusion("batch_aten_sub", pre_grad=False) +class BatchSubPostGradFusion(BatchPointwiseMathOpsPostGradFusion): + def __init__(self, **kwargs) -> None: + super().__init__(aten.sub.Tensor, **kwargs) + + +@register_fusion("batch_aten_div", pre_grad=False) +class BatchDivPostGradFusion(BatchPointwiseMathOpsPostGradFusion): + def __init__(self, **kwargs) -> None: + super().__init__(aten.div.Tensor, **kwargs) + + +@register_fusion("batch_aten_mul", pre_grad=False) +class BatchMulPostGradFusion(BatchPointwiseMathOpsPostGradFusion): + def __init__(self, **kwargs) -> None: + super().__init__(aten.mul.Tensor, **kwargs) + + +class _OrderedSet: + def __init__(self, param=None) -> None: + if param: + self.rep = OrderedDict(dict.fromkeys(param)) + else: + self.rep = OrderedDict() + + def __contains__(self, o) -> bool: + return o in self.rep + + def __len__(self) -> int: + return self.rep.__len__() + + def append(self, o): + self.rep[o] = None + + def __iter__(self): + return self.rep.keys().__iter__() + + +def find_independent_subset_greedy( + node_list: Iterable[torch.fx.Node], + graph_search_options: dict[str, Any], +) -> Iterator[Iterable[torch.fx.Node]]: + """ + Yields a list of subsets of `node_list` where no element in the subset + depends on any other element in the subset. This results in a set of + independent nodes which can be fused together. + + The order of `node_list` is preserved within each subset so we can benefit + from split-cat elimination in later passes. + + During iteration it is only safe to mutate the graph by changing the nodes + that have been returned. + + graph_search_options: + - min_fuse_set_size: Minimum size of the subset to consider. Subsets below + this size will be ignored. + - max_fuse_set_size: Maximum size of the subset to consider. Subsets will + be broken to be at most this size. + """ + + # Compute all the children of `node` which are members of + # `interesting_nodes`. + def find_dependent_nodes(node, interesting_nodes): + visited_node_set = OrderedSet[torch.fx.Node]() + dep_set = OrderedSet[torch.fx.Node]() + + work = [node] + while work: + node = work.pop() + for input_node in node.all_input_nodes: + if input_node in interesting_nodes: + dep_set.add(input_node) + + if input_node not in visited_node_set: + visited_node_set.add(input_node) + work.append(input_node) + + return dep_set + + min_fuse_set_size = graph_search_options["min_fuse_set_size"] + max_fuse_set_size = graph_search_options["max_fuse_set_size"] + + # node_list needs to be a set because we only track the nodes that are left + # in it (and we want to do the `in` on a set, not a list). But we want to + # keep the correct order. + node_list = _OrderedSet(node_list) + + cache: dict[torch.fx.Node, OrderedSet[torch.fx.Node]] = {} + while node_list: + subset: list[torch.fx.Node] = [] + subset_deps = OrderedSet[torch.fx.Node]() + + next_round_node_list = _OrderedSet() + for node in node_list: + if len(subset) >= max_fuse_set_size or node in subset_deps: + next_round_node_list.append(node) + continue + + dep_set = cache.pop(node, None) + if dep_set is None: + dep_set = find_dependent_nodes(node, node_list) + + if not dep_set.intersection(subset): + subset.append(node) + subset_deps.update(dep_set) + else: + next_round_node_list.append(node) + cache[node] = dep_set + + if len(subset) >= min_fuse_set_size: + # Careful here - the caller uses the subsets to fuse nodes together + # so we need to clear any cache entry that contains one of the + # returned nodes because the dependency list could be different + # (larger) after the merge. + cache = {k: v for k, v in cache.items() if v.isdisjoint(subset)} + yield subset + + node_list = next_round_node_list + + +def get_fusion_candidates( + rule: GroupBatchFusionBase, + root_node: torch.fx.Node, + fused_set: OrderedSet[torch.fx.Node], +) -> collections.defaultdict[Any, list[torch.fx.Node]]: + """ + Search fusion candidates for a specific rule using BFS starting from the root node. + We only search the subgraph within graph_search_options["max_fuse_search_depth"]. + """ + q: collections.deque[tuple[int, torch.fx.Node]] = collections.deque() + + candidate_dict: collections.defaultdict[Any, list[torch.fx.Node]] = ( + collections.defaultdict(list) + ) + + if root_node.target in SEARCH_EXCLUSIONS: + return candidate_dict + + visited_set = OrderedSet[torch.fx.Node]() + + for next_node in root_node.all_input_nodes: + q.append((1, next_node)) + visited_set.add(next_node) + + while len(q) > 0: + depth, node = q.popleft() + + if node in fused_set: + continue + + key = rule.match(node) + if key is not None: + candidate_nodes = candidate_dict[key] + if node not in candidate_nodes: + candidate_nodes.append(node) + else: + if depth < rule.graph_search_options["max_fuse_search_depth"]: + for next_node in node.all_input_nodes: + if next_node not in visited_set: + visited_set.add(next_node) + q.append((depth + 1, next_node)) + + return candidate_dict + + +def apply_group_batch_fusion(graph: torch.fx.GraphModule, rule: GroupBatchFusionBase): + stable_topological_sort(graph) # type: ignore[arg-type] + fused_set = OrderedSet[torch.fx.Node]() + log_to_scuba = False + + for node in reversed(graph.nodes): # type: ignore[arg-type] + candidates = get_fusion_candidates(rule, node, fused_set) + + for key, candidate_nodes in candidates.items(): + if len(candidate_nodes) < rule.graph_search_options["min_fuse_set_size"]: + continue + + for subset in find_independent_subset_greedy( + candidate_nodes, rule.graph_search_options + ): + rule.fuse(graph, subset) + fused_set.update(subset) + log.debug( + f"{rule.__class__.__name__}: key = {key}; subset size = {len(list(subset))}" # noqa: G004 + ) + log_to_scuba = True + if log_to_scuba: + from torch.fx._lazy_graph_module import _LazyGraphModule + + # Force graph to re-compile otherwise the output python code may be broken + gm = graph._owning_module + if isinstance(gm, _LazyGraphModule): + _LazyGraphModule.recompile() + else: + assert isinstance(gm, torch.fx.GraphModule) + gm.recompile() + graph_str = gm.print_readable( + print_output=False, include_stride=True, include_device=True + ) + + name = f"optimus_{str(rule.__class__.__name__)}" + if "MTIA" in name: + name = f"cff_{str(rule.__class__.__name__)}" + trace_structured( + "artifact", + metadata_fn=lambda: { + "name": name, + "encoding": "string", + }, + payload_fn=lambda: graph_str, + ) + + +def generate_fusion_from_config(config_options: dict[str, Any], pre_grad=True): + fusions: list[GroupBatchFusionBase] = [] + for name, options in config_options.items(): + # we skip all patterns from pattern_matcher passes (e.g., split_cat) + if name not in PRE_GRAD_FUSIONS and name not in POST_GRAD_FUSIONS: + continue + fusion_cls = PRE_GRAD_FUSIONS[name] if pre_grad else POST_GRAD_FUSIONS[name] + _options = graph_search_options.copy() + _options.update(options) + fusions.append(fusion_cls(graph_search_options=_options)) # type: ignore[operator] + return fusions + + +def group_batch_fusion_passes(graph: torch.fx.Graph, pre_grad=True): + fusions: list[GroupBatchFusionBase] = [] + # we keep all current pre grad fusions to keep + # current implementation, will remove this later + if pre_grad: + fusions += generate_fusion_from_config( + config.pre_grad_fusion_options, pre_grad=True + ) + else: + fbgemm_fusion_keys = [ + x + for x in config.post_grad_fusion_options + if ( + x not in OPTIMUS_EXCLUDE_POST_GRAD + and config.post_grad_fusion_options[x].get("require_fbgemm", False) + ) + ] + fbgemm_fusions = { + fusion: config.post_grad_fusion_options[fusion] + for fusion in fbgemm_fusion_keys + } + non_fbgemm_fusions = { + fusion: config.post_grad_fusion_options[fusion] + for fusion in config.post_grad_fusion_options + if fusion not in fbgemm_fusion_keys + } + fusions += generate_fusion_from_config(non_fbgemm_fusions, pre_grad=False) + if has_fbgemm: + fusions += generate_fusion_from_config(fbgemm_fusions, pre_grad=False) + + for i, rule in enumerate(fusions): + with GraphTransformObserver( + graph.owning_module, + f"group_batch_fusion_{i}", + ): + apply_group_batch_fusion(graph, rule) # type: ignore[arg-type] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/joint_graph.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/joint_graph.py new file mode 100644 index 0000000000000000000000000000000000000000..021abb0d6b13bd94c146b9a058c058745252e904 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/joint_graph.py @@ -0,0 +1,1048 @@ +# mypy: allow-untyped-defs +import functools +import itertools +import logging +import operator +import typing +from collections import Counter +from collections.abc import Sequence +from typing import Any + +import torch +import torch._guards +import torch.utils._pytree as pytree +from torch._dynamo.utils import counters +from torch._inductor.constant_folding import ConstantFolder +from torch._inductor.fx_passes.dedupe_symint_uses import _SymHashingDict +from torch._inductor.utils import get_gpu_type +from torch.fx.experimental.symbolic_shapes import ( + guard_or_false, + guard_or_true, + statically_known_true, +) +from torch.multiprocessing.reductions import StorageWeakRef +from torch.utils._ordered_set import OrderedSet + +from .. import config +from ..pattern_matcher import ( + Arg, + CallFunction, + init_once_fakemode, + KeywordArg, + Match, + MULTIPLE, + PatternMatcherPass as PatternMatcherPassBase, + register_graph_pattern, + stable_topological_sort, +) +from .decompose_mem_bound_mm import check_device +from .replace_random import replace_random_passes + + +PatternMatcherPass = functools.partial( + PatternMatcherPassBase, subsystem="joint_graph_passes" +) + +log = logging.getLogger(__name__) +patterns = PatternMatcherPass() +aten = torch.ops.aten +prims = torch.ops.prims + +pass_patterns = [ + patterns, + PatternMatcherPass(), +] + + +@init_once_fakemode +def lazy_init(): + from .fuse_attention import _sfdp_init + from .misc_patterns import _misc_patterns_init + from .pad_mm import _pad_mm_init + + _pad_mm_init() + _sfdp_init() + _misc_patterns_init() + + +def remove_no_ops( + gm: torch.fx.GraphModule, + zeros: OrderedSet[torch.fx.Node], + ones: OrderedSet[torch.fx.Node], +): + with torch.utils._python_dispatch._disable_current_modes(): + "Removes no-ops: (+ 0, - 0, * 1, / 1)" + graph = gm.graph + + def fake_tensors_eq(t1, t2, fields=("shape", "dtype", "device")): + if any(not isinstance(t, torch.Tensor) for t in (t1, t2)): + return False + for field in fields: + if getattr(t1, field) != getattr(t2, field): + return False + return True + + def replace_no_op(node, replace_input_index): + replacement = node.args[replace_input_index] + + # https://github.com/pytorch/pytorch/issues/86128 causes + # non-Tensor inputs even for ops with only Tensor inputs. + # TODO - decompose/type promote to avoid this + if not all(isinstance(arg, torch.fx.Node) for arg in node.args): + return + + if not fake_tensors_eq(node.meta["val"], replacement.meta["val"]): + if fake_tensors_eq( + node.meta["val"], + replacement.meta["val"], + ("shape", "device"), + ): + with graph.inserting_after(node): + replacement = graph.call_function( + torch.ops.prims.convert_element_type.default, + args=(replacement, node.meta["val"].dtype), + ) + else: + return + + node.replace_all_uses_with(replacement) + replacement.meta.update(node.meta) + graph.erase_node(node) + + for node in graph.find_nodes(op="call_function", target=aten.add.Tensor): + # TODO handle Tensor-Scalar adds, it's a different schema + if len(node.args) == 2: + if ( + not any(e in zeros for e in node.args) + or node.kwargs.get("alpha", 1) != 1 + ): + continue + + replace_index = 1 if node.args[0] in zeros else 0 + replace_no_op(node, replace_index) + + for node in graph.find_nodes(op="call_function", target=aten.sub.Tensor): + if len(node.args) == 2: + if node.args[1] not in zeros or node.kwargs.get("alpha", 1) != 1: + continue + + replace_no_op(node, 0) + + for node in graph.find_nodes(op="call_function", target=aten.mul.Tensor): + if len(node.args) == 2: + if not any(e in ones for e in node.args): + continue + + replace_input_index = 1 if node.args[0] in ones else 0 + replace_no_op(node, replace_input_index) + + for node in graph.find_nodes(op="call_function", target=aten.div.Tensor): + if len(node.args) == 2 and node.args[1] in ones: + replace_no_op(node, 0) + + # meta tensors returned from the graph have no data and can be replaced with empty_strided + for output_node in graph.find_nodes(op="output"): + had_meta_return = False + + def visit(n): + nonlocal had_meta_return + val = n.meta.get("val") + if isinstance(val, torch.Tensor) and val.device.type == "meta": + with graph.inserting_before(output_node): + n.replace_all_uses_with( + graph.call_function( + torch.ops.aten.empty_strided.default, + args=(val.size(), val.stride()), + kwargs={"dtype": val.dtype, "device": val.device}, + ) + ) + had_meta_return = True + + torch.fx.map_arg(output_node.args, visit) + if had_meta_return: + graph.eliminate_dead_code() + + +def remove_redundant_views(gm: torch.fx.GraphModule): + """ + Removes redundant views by reusing existing ones. + """ + with torch.utils._python_dispatch._disable_current_modes(): + # A dictionary mapping a tensor to all aliased views. + views: dict[torch.fx.Node, dict[torch.dtype, torch.fx.Node]] = {} + graph = gm.graph + + for node in graph.find_nodes( + op="call_function", target=torch.ops.aten.view.dtype + ): + src = node.args[0] + to_type = node.args[1] + existing_views = views.get(src) + is_needed = True + + if existing_views: + # Replace the view with the an existing view if available. + alias = existing_views.get(to_type) + if alias: + is_needed = False + node.replace_all_uses_with(alias) + alias.meta.update(node.meta) + graph.erase_node(node) + else: + from_type = src.meta["val"].dtype + existing_views = {from_type: src} + views[src] = existing_views + + if is_needed: + # Save the new alias but do not replace existing one. + existing_views.setdefault(to_type, node) + views[node] = existing_views + + # Clean up unused views. + while True: + unused_views = [alias for alias in views if not alias.users] + if len(unused_views) == 0: + break + for unused in unused_views: + views.pop(unused) + graph.erase_node(unused) + + +class UniformValueConstantFolder(ConstantFolder): + """ + Runs constant folding and replaces tensors that have a uniform value + with a tensor constructor call: aten.full([shape], value, ...) + """ + + def __init__(self, gm, skip_constructors=False) -> None: + super().__init__(gm, skip_constructors) + self.node_storages_ptrs: dict[torch.fx.Node, int] = {} + self.constant_data_ptrs: dict[torch.fx.Node, StorageWeakRef] = {} + # we may constant fold a tensor which in the graph has a sym size + # see: [constant folding refining of symints] + self.node_replacements_shapes: dict[torch.fx.Node, list[int]] = {} + + # initialize symint -> node mapping so that we can + # use symint nodes in full constructors + self.symint_nodes = _SymHashingDict() + for n in self.module.graph.nodes: # type: ignore[union-attr] + if "val" in n.meta and isinstance(n.meta["val"], torch.SymInt): + if n.meta["val"] not in self.symint_nodes: + self.symint_nodes[n.meta["val"]] = n + + # reference from torch/_funtorch/partitioners.py:get_default_op_list + self.view_op_packets = [ + aten.squeeze, + aten.unsqueeze, + aten.alias, + aten.view, + aten.slice, + aten.t, + prims.broadcast_in_dim, + aten.expand, + aten.as_strided, + aten.permute, + ] + + self.indexing_op_packets = OrderedSet( + [ + aten.slice, + ] + ) + + self._add_peephole_patterns() + + def _add_peephole_patterns(self) -> None: + """ + Add peephole patterns for nodes where we can infer constant value even if some inputs + of the node are unknown. + """ + for op in itertools.chain( + self.module.graph.find_nodes( # type: ignore[operator, union-attr] + op="call_function", target=torch.ops.aten.mul.Tensor + ), + self.module.graph.find_nodes( # type: ignore[operator, union-attr] + op="call_function", target=torch.ops.aten.mul.Scalar + ), + ): + tensor_val = op.meta.get("val", None) + if not isinstance(tensor_val, torch.Tensor): + continue + + def is_zero_int(arg: Any) -> bool: + return isinstance(arg, int) and arg == 0 + + if not any(is_zero_int(a) for a in op.args): + continue + + t = torch.full( + [1], # shape + 0, # value + dtype=tensor_val.dtype, + device=tensor_val.device, + pin_memory=False, + ) + self.add_node_replacement(op, t) + + def _support_dynamic_shape(self): + return True + + def insertable_tensor_check(self, t: torch.Tensor) -> bool: + return True + + def add_node_replacement(self, node: torch.fx.Node, tensor: torch.Tensor) -> None: + self.node_replacements[node] = tensor.flatten()[0].item() + self.node_replacements_shapes[node] = node.meta["val"].shape + self.constant_data_ptrs[node] = StorageWeakRef(tensor.untyped_storage()) + + def insert_placerholder_values(self, env: dict[torch.fx.Node, Any]) -> None: + for n in self.module.graph.find_nodes(op="placeholder"): # type: ignore[operator, union-attr] + if "val" in n.meta and isinstance(n.meta["val"], torch.SymInt): + env[n] = n.meta["val"] + else: + env[n] = self.unknown_value + + def _deduce_value(self, node: torch.fx.Node): + # deduce value for full-like nodes + # 1. for constructors, substitute value is a tensor of size [1] + # 2. for view ops/indexing, substitute value is the same as the input + # 3. for pointwise ops, run node to get the substitute value + # 4. deal with some special ops + # otherwise, stop deduce value and return unknown value + + # TODO: cat, more indexing + # TODO - do on cpu to avoid syncs + + # single-elem attrs + if node.op == "get_attr" or ( + node.op == "call_function" + and node.target is torch.ops.aten.lift_fresh_copy.default + ): + out = super(ConstantFolder, self).run_node(node) + if isinstance(out, torch.Tensor) and out.numel() == 1: + return out + + # handle device_put op + if node.target == prims.device_put.default: + return super(ConstantFolder, self).run_node(node) + + # constructors ops + if ( + node.op == "call_function" + and node.target is aten.full.default + and len(node.args) == 2 + ): + args, kwargs = self.fetch_args_kwargs_from_env(node) + value = args[1] + # Don't specialize symbolic value. + if not isinstance(value, (torch.SymInt, torch.SymFloat, torch.SymBool)): + new_args = [[1], value] + return aten.full.default(*new_args, **node.kwargs) + + # handle before view ops because this changes value + if node.target is aten.view.dtype: + return super(ConstantFolder, self).run_node(node) + + # view ops, return input tensor, the first argument + if hasattr(node.target, "overloadpacket") and ( + node.target.overloadpacket in self.view_op_packets + or node.target.overloadpacket in self.indexing_op_packets + ): + assert isinstance(node.args[0], torch.fx.Node) + return self.env[node.args[0]] + + # we don't want to return unknown value for symints so that we can + # still constant fold through their use in constructors or views + # if we see them in a pointwise node (e.g., tensor * symint) + # we will bail + if "val" in node.meta and isinstance(node.meta["val"], torch.SymInt): + return node.meta["val"] + + # pointwise ops + if isinstance(node.target, torch._ops.OpOverload) and ( + torch.Tag.pointwise in node.target.tags + or node.target is torch.ops.aten.scalar_tensor.default + ): + args, kwargs = self.fetch_args_kwargs_from_env(node) + flattened_inputs = pytree.arg_tree_leaves(*args, **kwargs) + + if any(isinstance(inp, torch.SymInt) for inp in flattened_inputs): + return self.unknown_value + + # we run the ops with dim 1, so remove memory_format to avoid error + kwargs = dict(kwargs) + kwargs.pop("memory_format", None) + + return node.target(*args, **kwargs) + + return self.unknown_value + + +def constant_fold_uniform_value(gm: torch.fx.GraphModule): + with torch.utils._python_dispatch._disable_current_modes(): + "Runs constant folding and replaces constants which can be constructed with a single `full` call. Calls into remove_no_ops." + aten = torch.ops.aten + + # Constant folding can leak memory, especially with repeated compilation, so we are only going to + # remove constants which can be replaced with a constructor. + cf = UniformValueConstantFolder(gm) + cf.run() + + node_replacements = cf.node_replacements + + # note: [constant folding refining of symints] + # constant folding will partially evaluate a graph such that values which have dependencies which + # are entirely known at compile time may also become compile time constants. in some cases, + # this will include symints which we had not yet previously deduced are guaranteed a + # constant value and is then deduced in constant folding. an example is: + # unbacked_symint_eq_11 = torch.full((), 11).item() + # torch.full((unbacked_symint_eq_11,), 0) + node_replacements_shapes = cf.node_replacements_shapes + + graph = gm.graph + + zeros = OrderedSet[Any]() + ones = OrderedSet[Any]() + + # Got failures in `test_is_set_to_cuda` if we change aliasing on constants, + # so just constant-ify if a Tensor is unaliased + constant_data_ptr_count: typing.Counter[StorageWeakRef] = Counter() + + for node in cf.node_replacements: + constant_data_ptr_count[cf.constant_data_ptrs[node]] += 1 + + for node, value in node_replacements.items(): + # we dont have a functional way right now of instantiating a non-contiguous tensor with full/zeros/ones right now + # hasn't shown up to be important yet + if "val" not in node.meta: + # This can only happen in AOTI + continue + + fake_tensor = node.meta["val"] + if not fake_tensor.is_contiguous(memory_format=torch.contiguous_format): + continue + + # TODO - not sure about lossy uint->python value->uint conversions + if fake_tensor.dtype in ( + torch.uint8, + torch.uint16, + torch.uint32, + torch.uint64, + ): + continue + + if constant_data_ptr_count[cf.constant_data_ptrs[node]] > 1: + continue + + with graph.inserting_after(node): + # the conversion from tensor and back to value can be lossy, just use the original full ctor value + if ( + node.op == "call_function" + and node.target is aten.full.default + and len(node.args) == 2 + ): + value = node.args[1] + + # refines symints, see [constant folding refining of symints] above + for runtime_size, compile_time_size in zip( + node_replacements_shapes[node], fake_tensor.shape + ): + torch._check(runtime_size == compile_time_size) + + # replace SymInt as Node before creating a new full node + # e.g. (1, s0) -> (1, arg0_1) + node_shape = node_replacements_shapes[node] + if not all( + not isinstance(s, torch.SymInt) or s in cf.symint_nodes + for s in node_shape + ): + continue + + shapes = [ + cf.symint_nodes[s] if isinstance(s, torch.SymInt) else s + for s in node_replacements_shapes[node] + ] + + # zeros and ones just get traced into full, so we insert those + new_node = graph.call_function( + aten.full.default, + args=(shapes, value), + kwargs={ + "dtype": fake_tensor.dtype, + "layout": torch.strided, + "device": fake_tensor.device, + "pin_memory": False, + }, + ) + + new_node.meta.update(node.meta) + node.replace_all_uses_with(new_node) + graph.erase_node(node) + + if value == 0: + zeros.add(new_node) + elif value == 1: + ones.add(new_node) + + remove_no_ops(gm, zeros, ones) + remove_redundant_views(gm) + + +def canonicalize_quant_mapping(gm: torch.fx.GraphModule): + """ + + + torch.ops.higher_order.invoke_quant_packed(repeated_subgraph0, 'quant_invoke_0_0', (arg0_1, arg1_1)); + -> + torch.ops.higher_order.invoke_quant(repeated_subgraph0, arg0_1, arg1_1, scheme = 'nf4'); + """ + graph = gm.graph + invoke_quant_invocations = graph.find_nodes( + op="call_function", target=torch.ops.higher_order.invoke_quant_packed + ) + for invoke_quant in invoke_quant_invocations: + kwargs = dict(invoke_quant.kwargs) + + quant_options_node = kwargs.pop("quant_options", None) + if quant_options_node is not None: + assert isinstance(quant_options_node, torch.fx.Node) + quant_options = torch._higher_order_ops.InvokeQuant( + *invoke_quant.kwargs["quant_options"].args, + **invoke_quant.kwargs["quant_options"].kwargs, + ) + else: + quant_options = torch._higher_order_ops.InvokeQuant() + + subgraph, *args = invoke_quant.args + with gm.graph.inserting_before(invoke_quant): + invoke_quant_replacement = graph.call_function( + torch._higher_order_ops.invoke_quant, + (subgraph, *args), + # pyrefly: ignore [bad-argument-type] + kwargs, + ) + invoke_quant_replacement.meta.update(subgraph.meta) + invoke_quant_replacement.meta["quant_options"] = quant_options + + invoke_quant.replace_all_uses_with(invoke_quant_replacement) + graph.erase_node(invoke_quant) + + if quant_options_node and len(quant_options_node.users) == 0: + graph.erase_node(quant_options_node) + + first_user = next(iter(invoke_quant_replacement.users)) + + if ( + len(invoke_quant_replacement.users) == 1 + and len(subgraph.users) == 1 + and first_user.target is operator.getitem + and first_user.args[1] == 0 + ): + subgraph_graph = getattr(gm, subgraph.target) + output_node = torch._inductor.utils.output_node(subgraph_graph) + assert ( + isinstance(output_node.args[0], (list, tuple)) + and len(output_node.args[0]) == 1 + ) + + unpacked_output = output_node.args[0][0] + output_node.args = (unpacked_output,) + if "val" in output_node.meta: + output_node.meta["val"] = output_node.meta["val"][0] + subgraph_graph.recompile() + + invoke_quant_replacement.meta.update(first_user.meta) + first_user.replace_all_uses_with(invoke_quant_replacement) + graph.erase_node(first_user) + + +def canonicalize_aten_ir_passes(gm: torch.fx.GraphModule): + """ + Canonicalization passes that will run immediately after aot autograd + tracing. Thsis must be run before all other graph passes. + """ + canonicalize_quant_mapping(gm) + + +def joint_graph_passes(graph: torch.fx.GraphModule): + """ + Run FX transformations on the joint forwards+backwards graph. + """ + GraphTransformObserver = functools.partial( + torch.fx.passes.graph_transform_observer.GraphTransformObserver, + subsystem="joint_graph_passes", + ) + + lazy_init() + count = 0 + + # must occur before other passes + canonicalize_aten_ir_passes(graph) + + if config.joint_custom_pre_pass is not None: + GraphTransformObserver(graph, "joint_custom_pre_pass").apply_graph_pass( + config.joint_custom_pre_pass + ) + count += 1 + + from .post_grad import remove_noop_ops + + GraphTransformObserver(graph, "remove_noop_ops").apply_graph_pass(remove_noop_ops) + + if config.joint_graph_constant_folding: + GraphTransformObserver(graph, "constant_fold_uniform_value").apply_gm_pass( + constant_fold_uniform_value + ) + + if config.pattern_matcher: + for i, patterns in enumerate(pass_patterns): + maybe_count = GraphTransformObserver( + graph, f"pass_pattern_{i}" + ).apply_graph_pass(patterns.apply) + count += maybe_count if maybe_count is not None else 0 + + if not config.fallback_random: + # not trying into the bisector because decomps may have already affected rng reproducibility + # we'll instead explicitly turn off the config + count += replace_random_passes(graph) + + if config.joint_custom_post_pass is not None: + GraphTransformObserver(graph, "joint_custom_post_pass").apply_graph_pass( + config.joint_custom_post_pass + ) + count += 1 + + if count: + stable_topological_sort(graph.graph) + graph.graph.lint() + graph.recompile() + return graph + + +@register_graph_pattern( + CallFunction( + torch.ops.prims.iota.default, + KeywordArg("length"), + start=KeywordArg("start"), + step=KeywordArg("step"), + dtype=KeywordArg("dtype"), + device=KeywordArg("device"), + requires_grad=KeywordArg("requires_grad"), + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=patterns, +) +def fix_iota_device(match: Match, length, start, step, dtype, device, requires_grad): + """ + Eager supports: + + aten.index(cuda_tensor, torch.arange(..., device="cpu")) + + But this results in an implicit host-device-copy and breaks cudagraphs. + Rewrite the arange to use CUDA. + """ + (node,) = match.nodes + user_devices = OrderedSet[torch.device]() + for user in node.users: + if ( + user.op == "call_function" + and user.target in (aten.index.Tensor, aten.index_put.default) + and hasattr(user.meta.get("val"), "device") + ): + user_devices.add(user.meta["val"].device) # type: ignore[union-attr] + else: + return # bail out + + if len(user_devices) == 1 and "val" in node.meta: + (user_device,) = user_devices + if device.type != user_device.type: + repl = match.graph.call_function( + torch.ops.prims.iota.default, + (length,), + { + "start": start, + "step": step, + "dtype": dtype, + "device": user_device, + "requires_grad": requires_grad, + }, + ) + repl.meta.update(node.meta) + repl.meta["val"] = repl.meta["val"].to(user_device) + node.replace_all_uses_with(repl) + match.erase_nodes() + + +@register_graph_pattern( + CallFunction( + torch.ops.prims.convert_element_type.default, + CallFunction( + torch.ops.prims.convert_element_type.default, + KeywordArg("arg"), + KeywordArg("dtype1"), + ), + KeywordArg("dtype2"), + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=patterns, +) +def pointless_convert(match: Match, arg, dtype1: torch.dtype, dtype2: torch.dtype): + """Remove chain of dtype conversions often created by AMP""" + graph = match.graph + node = match.output_node() + allowed = torch.float16, torch.bfloat16, torch.float32, torch.float64 + if dtype1 in allowed and dtype2 in allowed: + repl = graph.call_function( + torch.ops.prims.convert_element_type.default, (arg, dtype2) + ) + repl.meta.update(node.meta) + node.replace_all_uses_with(repl) + match.erase_nodes() + + +def definitely_equal( + old_sizes: Sequence[torch.SymInt | int], + new_sizes: Sequence[torch.SymInt | torch.fx.Node | int], +) -> bool: + """ + Leverage guard_or_true/false to compare if two lists of int/symint are equal. + Useful to compare sizes, strides etc. + + Can handle -1 in new_sizes which happens in the size arguments of a + view op. old_sizes is supposed to be the tensor shape and should not + contain -1. + + new_sizes can contains fx.Node when dynamic shape is enabled. In that + case new_sizes[i].meta['val'] contains the real torch.SymInt. + """ + + num_neg1 = 0 + + if len(old_sizes) != len(new_sizes): + return False + + for lhs_item, rhs_item in zip(old_sizes, new_sizes): + if isinstance(rhs_item, torch.fx.Node): + rhs_item = rhs_item.meta["val"] + + assert isinstance(lhs_item, (int, torch.SymInt)), type(lhs_item) + assert isinstance(rhs_item, (int, torch.SymInt)), type(rhs_item) + + # It still makes sense to call guard_or_true/false since lhs_item + # rhs_item are torch.SymInt rather than sympy expressions when + # dynamic shape is enabled. + if guard_or_false(lhs_item == rhs_item): + continue + + if guard_or_true(rhs_item != -1): + return False + + num_neg1 += 1 + + if num_neg1 > 1: + return False + return True + + +@register_graph_pattern( + CallFunction(torch.ops.aten.view.default, KeywordArg("arg"), KeywordArg("size")), + # pyrefly: ignore [bad-argument-type] + pass_dict=patterns, +) +def pointless_view(match: Match, arg, size): + """Remove no-op view""" + node = match.output_node() + arg_size = list(node.args[0].meta["val"].shape) # type: ignore[union-attr] + if definitely_equal(arg_size, size): + node.replace_all_uses_with(node.args[0]) # type: ignore[arg-type] + match.erase_nodes() + + +@register_graph_pattern( + CallFunction( + aten.view.default, + CallFunction(aten.view.default, KeywordArg("arg"), KeywordArg("size1")), + KeywordArg("size2"), + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=patterns, +) +def pointless_view_pair(match: Match, arg, size1, size2): + """ + Remove a pair of views that are pointless. + """ + node = match.output_node() + arg_size = list(arg.meta["val"].shape) + if definitely_equal(arg_size, size2): + node.replace_all_uses_with(arg) + match.erase_nodes() + counters["inductor"]["removed_pointless_view_pair"] += 1 + + +@register_graph_pattern( + CallFunction( + aten.permute.default, + CallFunction(aten.permute.default, KeywordArg("arg"), KeywordArg("perm1")), + KeywordArg("perm2"), + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=patterns, +) +def pointless_permute_pair(match: Match, arg, perm1, perm2): + rank = len(perm1) + assert len(perm2) == rank + + for i in range(rank): + if perm1[perm2[i]] != i: + return # bail out + node = match.output_node() + node.replace_all_uses_with(arg) + match.erase_nodes() + + +@register_graph_pattern( + CallFunction( + aten.bmm, + Arg(), + Arg(), + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=patterns, +) +def bmm_to_mm(match: Match, mat1: torch.fx.Node, mat2: torch.fx.Node): + """Convert bmm to mm when batch size is 1""" + + def repl(a, b): + return torch.mm(a.squeeze(0), b.squeeze(0)).unsqueeze(0) + + if ( + check_device(mat1.meta["val"], mat2.meta["val"], get_gpu_type()) + and statically_known_true(mat1.meta["val"].shape[0] == 1) + and statically_known_true(mat2.meta["val"].shape[0] == 1) + ): + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(repl, [mat1, mat2]) + + +# When softmax is used with temperature or other scaling, we get the pattern +# +# scale(x) - scale(x).amax(dim, keepdim=True) +# +# which is expected to be at most zero, but we may end up with numerical +# discrepancies # between the recomputed values of scale(x) inside and out +# of the reduction, # depending on compiler optimizations, e.g. use of fma +# instructions. +# +# Here we replace it with the mathematically equivalent, +# +# scale(x - x.amax(dim, keepdim=True)) +# +# which is more stable as we only compute the scaling once. +# +# NOTE: This pattern must come after fused attention matching! + + +def _partial_softmax_pattern(linear_func, reverse=False, to_dtype=False): + # Allow matching inp * other and other * input + if reverse: + scaled = CallFunction( + linear_func, KeywordArg("other"), KeywordArg("inp"), _users=MULTIPLE + ) + else: + scaled = CallFunction( + linear_func, KeywordArg("inp"), KeywordArg("other"), _users=MULTIPLE + ) + if to_dtype: + scaled = CallFunction( + prims.convert_element_type, scaled, KeywordArg("dtype"), _users=MULTIPLE + ) + amax = CallFunction( + aten.amax.default, scaled, KeywordArg("dim"), KeywordArg("keepdim") + ) + return CallFunction(aten.sub.Tensor, scaled, amax) + + +def _other_is_broadcasted_in_dim(match): + # Check that the scaling factor is constant across the reduction dim, + # so scaling doesn't change which index corresponds to the maximum value + other = match.kwargs["other"] + if isinstance(other, (int, float)): + return True + + inp = match.kwargs["inp"] + if not all(isinstance(x, torch.fx.Node) for x in (inp, other)): + return False + + inp_example = inp.meta["val"] + other_example = other.meta["val"] + if isinstance(other_example, (torch.SymInt, torch.SymFloat)): + return True + + if not all(isinstance(x, torch.Tensor) for x in (inp_example, other_example)): + return False + + inp_ndim = inp_example.ndim + other_shape = other_example.shape + if inp_ndim < len(other_shape): + return False + + # Pad other_shape to the same ndim as inp + other_shape = [1] * (inp_ndim - len(other_shape)) + list(other_shape) + + dim = match.kwargs["dim"] + if isinstance(dim, int): + dim = (dim,) + + if any(d >= len(other_shape) for d in dim): + return False + + return all(statically_known_true(other_shape[d] == 1) for d in dim) + + +def mul_softmax_pattern(match: Match, *, inp, other, dim, keepdim, dtype=None): + def repl(inp, other): + if dtype is not None: + inp = inp.to(dtype) + + sign: int | float | torch.Tensor + if isinstance(other, (int, float, torch.SymInt, torch.SymFloat)): + sign = 1 if other >= 0 else -1 + else: + one = torch.scalar_tensor(1, dtype=inp.dtype, device=inp.device) + sign = torch.where(other >= 0, one, -one) + + inp = inp * sign + max_ = torch.amax(inp, dim=dim, keepdim=keepdim) + # pyrefly: ignore [unsupported-operation] + return (inp - max_) * (sign * other) + + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(repl, [inp, other]) + + +for reverse, to_dtype in itertools.product((False, True), repeat=2): + register_graph_pattern( + _partial_softmax_pattern(aten.mul.Tensor, reverse=reverse, to_dtype=to_dtype), + # pyrefly: ignore [bad-argument-type] + pass_dict=pass_patterns[1], + extra_check=_other_is_broadcasted_in_dim, + )(mul_softmax_pattern) + + +def div_softmax_pattern(match: Match, *, inp, other, dim, keepdim, dtype=None): + def repl(inp, other): + if dtype is not None: + inp = inp.to(dtype) + + sign: int | float | torch.Tensor + if isinstance(other, (int, float, torch.SymInt, torch.SymFloat)): + sign = 1 if other >= 0 else -1 + else: + one = torch.scalar_tensor(1, dtype=inp.dtype, device=inp.device) + sign = torch.where(other >= 0, one, -one) + + inp = inp * sign + max_ = torch.amax(inp, dim=dim, keepdim=keepdim) + # pyrefly: ignore [unsupported-operation] + return (inp - max_) / (sign * other) + + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(repl, [inp, other]) + + +for to_dtype in (False, True): + register_graph_pattern( + _partial_softmax_pattern(aten.div.Tensor, to_dtype=to_dtype), + # pyrefly: ignore [bad-argument-type] + pass_dict=pass_patterns[1], + extra_check=_other_is_broadcasted_in_dim, + )(div_softmax_pattern) + + +def scatter_upon_const_tensor_extra_check(m): + if not config.optimize_scatter_upon_const_tensor: + return False + full_shape = m.kwargs["shape"] + selector = m.kwargs["selector"] + dim = m.kwargs["dim"] + if dim < 0: + dim += len(full_shape) + + selector_ft = selector.meta["val"] + assert selector_ft.dim() == len(full_shape) + + for idx, select_sz, full_sz in zip( + itertools.count(), selector_ft.shape, full_shape + ): + if idx == dim: + continue + + # TODO: the pattern can be updated to support the case that index tensor + # is shorter. But that will need a more complex condition expression + # especially for multi-dimensional tensors. + # Skip it for now. + if isinstance(full_sz, torch.fx.Node): + full_sz = full_sz.meta["val"] + if select_sz < full_sz: + return False + + # Actually we can support small size larger than 1. It would be a bit + # tedious. E.g., we load all the index values (not many) and compare + # them with the position in tensor to decide what value to return. + return selector_ft.size(dim) == 1 + + +@register_graph_pattern( + CallFunction( + aten.scatter.value, + CallFunction( + aten.full, + KeywordArg("shape"), + KeywordArg("background_val"), + dtype=KeywordArg("dtype"), + ), + KeywordArg("dim"), + KeywordArg("selector"), + KeywordArg("val"), # scalar value + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=patterns, + extra_check=scatter_upon_const_tensor_extra_check, +) +def scatter_upon_const_tensor( + match: Match, shape, background_val, dtype, dim, selector, val +): + """ + Match the pattern of full+scatter into a pointwise operation in joint graph. + + TODO: Right now the scatter value must be a scalar. But we could support it + when it is a tensor as well. + """ + from torch._inductor import metrics + + # pyrefly: ignore # bad-assignment + metrics.num_matches_for_scatter_upon_const_tensor += 1 + + # Create a replacement that uses torch.where for the pointwise operation + def repl_fn(shape, background_val, dim, selector, val): + # Create a tensor of indices for the scatter dimension + length = shape[dim] + indices = torch.arange(length, device=selector.device, dtype=torch.int64) + + # Reshape indices to have size 'length' at dim, then broadcast + view_shape = [1] * len(shape) + view_shape[dim] = length + indices_view = indices.view(*view_shape) + + # Broadcast selector to match full tensor shape + selector_expanded = selector.expand(shape) + + # Create a mask for where to scatter + mask = selector_expanded == indices_view + + # Use torch.where to implement the scatter pointwise operation + return torch.where(mask, val, background_val) + + # replace the scatter operation with pointwise equivalent + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(repl_fn, [shape, background_val, dim, selector, val]) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/memory_estimator.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/memory_estimator.py new file mode 100644 index 0000000000000000000000000000000000000000..e887d4bf62c8e11196ac5b2740c0ef3c39e64def --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/memory_estimator.py @@ -0,0 +1,454 @@ +import itertools +import logging +from collections import defaultdict +from collections.abc import Callable +from dataclasses import dataclass + +import torch +import torch.fx as fx +from torch.fx.experimental.symbolic_shapes import hint_int +from torch.utils._ordered_set import OrderedSet +from torch.utils._pytree import tree_map_only + + +log = logging.getLogger(__name__) + + +@dataclass(frozen=True) +class StorageKey: + storage: torch.UntypedStorage + device: torch.device + + def __hash__(self) -> int: + return self.storage._cdata + + def __eq__(self, other: object) -> bool: + if not isinstance(other, StorageKey): + return False + return ( + self.storage._cdata == other.storage._cdata and self.device == other.device + ) + + +class GraphAliasTracker: + """ + Tracks storage allocation and usage relationships in an FX graph. + + Differentiates between: + - Fresh allocations: nodes that allocate new storage (not views/aliases) + - Uses: nodes that use a storage as input + """ + + def __init__(self, nodes: list[fx.Node]): + # Map from node to the fresh storages it allocates (not views/aliases) + self.node_to_fresh_allocations: dict[fx.Node, OrderedSet[StorageKey]] = {} + + # Map from storage to the node that originally allocated it + self.storage_to_allocator: dict[StorageKey, fx.Node] = {} + + # Map from node to all storages it uses as inputs + self.node_to_storage_uses: dict[fx.Node, OrderedSet[StorageKey]] = {} + + # Map from storage to all nodes that use it + self.storage_to_uses: dict[StorageKey, OrderedSet[fx.Node]] = defaultdict( + OrderedSet + ) + + # Map from storage to the last node that uses it + self.storage_to_last_user: dict[StorageKey, fx.Node] = {} + + # Map from node to storages that have their last use at that node + self.node_to_storages_last_used: dict[fx.Node, OrderedSet[StorageKey]] = ( + defaultdict(OrderedSet) + ) + + # Track all output storages for each node (for building usage graph) + self.node_to_output_storages: dict[fx.Node, OrderedSet[StorageKey]] = {} + + # First pass: build storage allocations and track uses + for node in nodes: + # Get output storages + output_storages = self._get_output_storages(node) + self.node_to_output_storages[node] = output_storages + + # Track fresh allocations + fresh_allocations: OrderedSet[StorageKey] = OrderedSet() + for storage_key in output_storages: + if storage_key not in self.storage_to_allocator: + self.storage_to_allocator[storage_key] = node + fresh_allocations.add(storage_key) + self.node_to_fresh_allocations[node] = fresh_allocations + + # Track input storage uses (safe because inputs were already processed) + input_storages = self._get_input_storages(node) + self.node_to_storage_uses[node] = input_storages + for storage_key in input_storages: + self.storage_to_uses[storage_key].add(node) + + # Second pass: find last users (iterate in reverse) + for node in reversed(nodes): + input_storages = self.node_to_storage_uses[node] + for storage_key in input_storages: + if storage_key not in self.storage_to_last_user: + self.storage_to_last_user[storage_key] = node + self.node_to_storages_last_used[node].add(storage_key) + + @staticmethod + def _get_output_storages(node: fx.Node) -> OrderedSet[StorageKey]: + """ + Get all storages from a node's outputs. + + Uses pytree to handle arbitrary nested structures. + """ + val = node.meta.get("val") + if val is None: + return OrderedSet() + + storages: OrderedSet[StorageKey] = OrderedSet() + + def collect_storage(tensor: torch._subclasses.FakeTensor) -> None: + storages.add(StorageKey(tensor.untyped_storage(), tensor.device)) + + # Use tree_map_only to handle FakeTensors in nested structures + tree_map_only(torch._subclasses.FakeTensor, collect_storage, val) + + return storages + + def _get_input_storages(self, node: fx.Node) -> OrderedSet[StorageKey]: + """ + Get all storages from a node's inputs. + """ + input_storages: OrderedSet[StorageKey] = OrderedSet() + + for input_node in node.all_input_nodes: + input_storages.update(self.node_to_output_storages[input_node]) + + return input_storages + + def get_fresh_allocations(self, node: fx.Node) -> OrderedSet[StorageKey]: + """Get all fresh storage allocations by this node (not views/aliases).""" + return self.node_to_fresh_allocations[node] + + def get_storage_uses(self, node: fx.Node) -> OrderedSet[StorageKey]: + """Get all storages that this node uses as inputs.""" + return self.node_to_storage_uses[node] + + def get_storages_last_used( + self, + node: fx.Node, + ) -> OrderedSet[StorageKey]: + """ + Get storages whose last use is at this node. + """ + return self.node_to_storages_last_used[node] + + +def _size_of_default(num_bytes: int | torch.SymInt) -> int: + return hint_int(num_bytes, fallback=torch._inductor.config.unbacked_symint_fallback) + + +def device_filter(device: torch.device) -> bool: + return device.type != "cpu" + + +def build_memory_profile( + graph: fx.Graph, + is_releasable: Callable[[fx.Node], bool], + size_of: Callable[[int | torch.SymInt], int] | None = None, +) -> list[int]: + """ + Function to estimate the memory profile of an input FX graph. + + Args: + - graph (fx.Graph): The input FX graph for which the memory profile + is to be estimated. + - is_releasable (Callable[[fx.Node], bool]): A function that + determines if a node's memory can be released (e.g. primal nodes + cannot be released). + - size_of (Callable[[int | torch.SymInt], int]): A function that converts + byte counts (possibly symbolic) to concrete integers. + + Returns: + - List[int]: A list representing the memory profile over the execution + of the graph, where each entry corresponds to the memory usage at + a particular point in the execution. + """ + + size_of = size_of or _size_of_default + nodes = list(graph.nodes) + alias_info = GraphAliasTracker(nodes) + + # Build memory profile + current_memory = 0 + + for node in itertools.chain( + graph.find_nodes(op="placeholder"), graph.find_nodes(op="get_attr") + ): + for storage_key in alias_info.get_fresh_allocations(node): + if device_filter(storage_key.device): + current_memory += size_of(storage_key.storage.nbytes()) + + memory_profile = [current_memory] + + for node in nodes: + if node.op in ("placeholder", "get_attr", "output"): + continue + + # Process allocations + for storage_key in alias_info.get_fresh_allocations(node): + if device_filter(storage_key.device): + current_memory += size_of(storage_key.storage.nbytes()) + + memory_profile.append(current_memory) + + # Process deallocations + for storage_key in alias_info.get_storages_last_used(node): + allocator = alias_info.storage_to_allocator[storage_key] + if is_releasable(allocator): + if device_filter(storage_key.device): + current_memory -= size_of(storage_key.storage.nbytes()) + + memory_profile.append(current_memory) + + return memory_profile + + +def get_fwd_bwd_interactions( + fwd_graph: fx.Graph, + bwd_graph: fx.Graph, + size_of: Callable[[int | torch.SymInt], int] | None = None, +) -> tuple[int, OrderedSet[str]]: + """ + Analyze the interactions between the forward (fwd) and backward (bwd) graphs + to determine memory usage characteristics. + + Args: + - fwd_graph (fx.Graph): The forward graph representing the forward pass. + - bwd_graph (fx.Graph): The backward graph representing the backward pass. + - size_of (Callable[[int | torch.SymInt], int]): A function that converts + byte counts (possibly symbolic) to concrete integers. + + Returns: + - tuple[int, OrderedSet[str]]: A tuple containing: + 1. The baseline memory usage during the backward pass, accounting for + storages that persist from the forward pass (i.e., in fwd output but + not in bwd input). + 2. A set of node names whose storage cannot be released during the bwd pass. + These include nodes that use storage from primals or are in bwd input + but not in fwd output. + """ + + size_of = size_of or _size_of_default + + # Build alias info for forward graph + fwd_nodes = list(fwd_graph.nodes) + fwd_alias_info = GraphAliasTracker(fwd_nodes) + + # Identify storages allocated by primal placeholder nodes + primal_storages: OrderedSet[StorageKey] = OrderedSet() + for node in fwd_graph.find_nodes(op="placeholder"): + if node.name.startswith("primals"): + primal_storages.update(fwd_alias_info.get_fresh_allocations(node)) + + # Get storages in forward output + fwd_output_node = next(iter(reversed(fwd_graph.nodes)))[-1] + assert fwd_output_node.op == "output" + fwd_output_storages = fwd_alias_info.get_storage_uses(fwd_output_node) + + # Node names that should not be deleted during memory profile estimation of bwd_graph + do_not_delete: OrderedSet[str] = OrderedSet() + + # Collect all storages in backward inputs and identify nodes to not delete + bwd_input_storages: OrderedSet[StorageKey] = OrderedSet() + for node in bwd_graph.find_nodes(op="placeholder"): + node_storages = GraphAliasTracker._get_output_storages(node) + bwd_input_storages.update(node_storages) + + # Check if this node uses primal storage + if node_storages & primal_storages: + do_not_delete.add(node.name) + + # Check if this node's storages are not in forward outputs + # (meaning it's an external input to backward pass) + if not (node_storages & fwd_output_storages): + do_not_delete.add(node.name) + + # Calculate baseline memory: storages in fwd output but not in bwd input + # These storages persist throughout the backward pass + baseline_storages = fwd_output_storages - bwd_input_storages + bwd_baseline_memory = 0 + for storage_key in baseline_storages: + if storage_key.device.type != "cpu": + bwd_baseline_memory += size_of(storage_key.storage.nbytes()) + + return bwd_baseline_memory, do_not_delete + + +def _is_releasable(n: fx.Node) -> bool: + # Storages of primals cannot be released during fwd or bwd pass. + return not n.name.startswith("primals") + + +def get_peak_memory( + fwd_graph: fx.Graph, + bwd_graph: fx.Graph, +) -> int: + fwd_peak_memory = max(build_memory_profile(fwd_graph, _is_releasable)) + + bwd_baseline_memory, bwd_do_not_delete = get_fwd_bwd_interactions( + fwd_graph, + bwd_graph, + ) + + def _is_bwd_releasable(n: fx.Node) -> bool: + # Storages of nodes in bwd_do_not_delete cannot be released + # during the bwd pass. + return _is_releasable(n) and n.name not in bwd_do_not_delete + + bwd_peak_memory = bwd_baseline_memory + max( + build_memory_profile(bwd_graph, _is_bwd_releasable) + ) + return max( + fwd_peak_memory, + bwd_peak_memory, + ) + + +class MemoryTracker: + """ + Tracks memory usage for alternative scheduling orders of an FX graph. + + This class enables tracking memory usage as nodes are scheduled in a different + order than the original graph. + """ + + def __init__( + self, + graph: fx.Graph, + is_releasable: Callable[[fx.Node], bool] | None = None, + device_filter: Callable[[torch.device], bool] | None = None, + ): + """ + Initialize memory tracker for alternative scheduling of the given graph. + + Args: + graph: FX graph to track memory for under alternative scheduling + is_releaseable: do we consider this input to the graph to release memory + upon final use, or is allocated for the duration of the graph ? + by default, we assume all nodes but those that start with "primals" to be releasable + device_filter: Function to determine which devices to track (default: non-CPU) + """ + + self.graph = graph + self.nodes = list(graph.nodes) + self.device_filter = device_filter or (lambda device: device.type != "cpu") + self.scheduled: OrderedSet[fx.Node] = OrderedSet() + + # Memory tracking using GraphAliasTracker + self.alias_tracker = GraphAliasTracker(self.nodes) + self.current_live_storages: OrderedSet[StorageKey] = OrderedSet() + self.current_memory_bytes = 0 + self.is_releasable = _is_releasable if is_releasable is None else is_releasable + + # Initialize live storages with placeholders and get_attr nodes + for node in self.nodes: + if node.op in ("placeholder", "get_attr"): + fresh_allocations = self.alias_tracker.get_fresh_allocations(node) + for storage_key in fresh_allocations: + if self.device_filter(storage_key.device): + self.current_live_storages.add(storage_key) + self.current_memory_bytes += self._get_storage_size(storage_key) + + self.peak_memory = self.current_memory_bytes + + log.debug( + "Memory tracker initialized with initial memory: %d MB", + self.current_memory_bytes // (1024 * 1024), + ) + + def schedule_node(self, node: fx.Node) -> None: + """ + Schedule a node and update memory tracking for the new scheduling order. + + Args: + node: The node being scheduled (potentially out of original order) + """ + assert node not in self.scheduled, "should not schedule node twice" + self.scheduled.add(node) + self._update_memory_for_node(node) + + def get_current_memory_bytes(self) -> int: + """Get current live memory in bytes under the current scheduling.""" + return self.current_memory_bytes + + def _get_storage_size(self, storage_key: StorageKey) -> int: + """Get the size of a storage in bytes, handling symbolic shapes.""" + size_bytes = storage_key.storage.nbytes() + return hint_int( + size_bytes, fallback=torch._inductor.config.unbacked_symint_fallback + ) + + def _get_storages_freed_by_node(self, node: fx.Node) -> OrderedSet[StorageKey]: + """Get storages that would be freed if we schedule this node.""" + freed_storages: OrderedSet[StorageKey] = OrderedSet() + + input_storages = self.alias_tracker.get_storage_uses(node) + for storage_key in input_storages: + if not self.device_filter(storage_key.device): + continue + + # Invariant: if a node uses a storage, it must be live + assert storage_key in self.current_live_storages, ( + "all input storages should be currently allocated" + ) + + if not self.is_releasable( + self.alias_tracker.storage_to_allocator[storage_key] + ): + continue + + all_uses = self.alias_tracker.storage_to_uses[storage_key] + + # If no more unscheduled uses remain, the storage can be freed + if all(u in self.scheduled for u in all_uses): + freed_storages.add(storage_key) + + return freed_storages + + def _update_memory_for_node(self, node: fx.Node) -> None: + """Update memory tracking when a node is scheduled.""" + if node.op in ("placeholder", "get_attr", "output"): + return + + # Add fresh allocations + fresh_allocations = self.alias_tracker.get_fresh_allocations(node) + alloc_bytes = 0 + for storage_key in fresh_allocations: + if ( + self.device_filter(storage_key.device) + and storage_key not in self.current_live_storages + ): + size = self._get_storage_size(storage_key) + self.current_live_storages.add(storage_key) + self.current_memory_bytes += size + alloc_bytes += size + + self.peak_memory = max(self.current_memory_bytes, self.peak_memory) + + # Remove storages that are no longer used + storages_to_free = self._get_storages_freed_by_node(node) + freed_bytes = 0 + for storage_key in storages_to_free: + if storage_key in self.current_live_storages: + size = self._get_storage_size(storage_key) + self.current_live_storages.remove(storage_key) + self.current_memory_bytes -= size + freed_bytes += size + + log.debug( + "Scheduled %s: memory change %d allocs, %d frees, current memory: %d MB", + node.name, + len(fresh_allocations), + len(storages_to_free), + self.current_memory_bytes // (1024 * 1024), + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/micro_pipeline_tp.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/micro_pipeline_tp.py new file mode 100644 index 0000000000000000000000000000000000000000..6cc5503d4815b6a37d1e0daa9c5ffaad4498539f --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/micro_pipeline_tp.py @@ -0,0 +1,1114 @@ +# mypy: allow-untyped-defs +import logging +import operator +from collections import defaultdict +from dataclasses import dataclass, field +from math import prod +from typing import Any, cast + +import torch +from torch.utils._ordered_set import OrderedSet + +from .. import config, inductor_prims +from ..pattern_matcher import ( + CallFunction, + Ignored, + KeywordArg, + ListOf, + Match, + MULTIPLE, + PatternExpr, + PatternMatcherPass, +) + + +log = logging.getLogger(__name__) +aten = torch.ops.aten +patterns = PatternMatcherPass() + + +def _is_last_dim(t: torch.Tensor, dim: int) -> bool: + return dim == t.ndim - 1 or dim == -1 + + +def _is_backward(graph: torch.fx.Graph) -> bool: + placeholders = [] + for node in graph.nodes: + if node.op != "placeholder": + break + placeholders.append(node) + return not all(node.name.startswith("primal") for node in placeholders) + + +def _compute_mm_arithmetic_intensity(M: int, N: int, K: int) -> float: + return M * N * K / (M * K + N * K + M * N) + + +def _filter_nodes_by_target(nodes: list[torch.fx.Node], target) -> list[torch.fx.Node]: + return [x for x in nodes if x.target == target] + + +def _find_ancestors(node: torch.fx.Node) -> OrderedSet[torch.fx.Node]: + ancestors = OrderedSet[torch.fx.Node]() + ancestors.add(node) + cur_nodes = [node] + while len(cur_nodes) > 0: + new_nodes = [] + for node in cur_nodes: + for inp in node.all_input_nodes: + if inp not in ancestors: + ancestors.add(inp) + new_nodes.append(inp) + cur_nodes = new_nodes + return OrderedSet(node for node in ancestors if node.op != "placeholder") + + +def _get_tensor(node: torch.fx.Node) -> torch.Tensor: + val = node.meta["val"] + assert isinstance(val, torch.Tensor) + return val + + +@dataclass +class _AllGatherMatch: + match: Match + shard_node: torch.fx.Node + ag_node: torch.fx.Node + res_node: torch.fx.Node + gather_dim: int + group_name: "torch.distributed.distributed_c10d.GroupName" + + def replace_with(self, new_node: torch.fx.Node) -> None: + self.res_node.replace_all_uses_with(new_node) + + def erase(self) -> None: + for node in reversed(self.match.nodes): + if len(node.users) == 0: + node.graph.erase_node(node) + + +def find_all_gather_patterns(graph: torch.fx.Graph): + c10d = torch.ops._c10d_functional + + def make_zero_dim_all_gather_pattern(shard): + return CallFunction( + c10d.wait_tensor.default, + CallFunction( + c10d.all_gather_into_tensor.default, + shard, + Ignored(), + KeywordArg("group_name"), + ), + ) + + # Matches funcol.all_gather_tensor with gather_dim == 0 + zero_dim_all_gather_pattern = make_zero_dim_all_gather_pattern(KeywordArg("shard")) + + def make_all_gather_split_pattern(shard): + return CallFunction( + operator.getitem, + CallFunction( + aten.split.Tensor, + make_zero_dim_all_gather_pattern(shard), + Ignored(), + _users=MULTIPLE, + ), + Ignored(), + ) + + def make_cat_pattern(splits): + return CallFunction( + aten.cat.default, + ListOf(splits), + KeywordArg("gather_dim"), + ) + + # Matches funcol.all_gather_tensor with gather_dim > 0 + non_zero_dim_all_gather_pattern = make_cat_pattern( + make_all_gather_split_pattern(KeywordArg("shard")), + ) + + # Match a zero-dim all-gather in which the data is transferred as uint8 and + # viewed back as the original dtype. + zero_dim_type_erased_all_gather_pattern = CallFunction( + aten.view.dtype, + make_zero_dim_all_gather_pattern( + KeywordArg("shard"), + ), + Ignored(), + ) + + # Match a non-zero dim all-gather in which the data is transferred as uint8 + # and viewed back as the original dtype. + non_zero_dim_type_erased_all_gather_pattern = CallFunction( + aten.view.dtype, + make_cat_pattern( + CallFunction( + aten.view.dtype, + make_all_gather_split_pattern( + KeywordArg("shard"), + ), + Ignored(), + ), + ), + Ignored(), + ) + + # If two patterns with the same res_node_target have the same suffix, the + # longer pattern should appear first in the list. + # e.g. supposed we have (1) A -> B -> C -> D and (2) B -> C -> D, (1) + # should appear before (2) in the list. + res_node_target_to_patterns = { + aten.cat.default: [ + (non_zero_dim_all_gather_pattern, 0), + ], + aten.view.dtype: [ + (non_zero_dim_type_erased_all_gather_pattern, 0), + (zero_dim_type_erased_all_gather_pattern, 0), + ], + c10d.wait_tensor.default: [ + (zero_dim_all_gather_pattern, 0), + ], + } + + # Match in reverse to ensure longer patterns is prioritized + all_gathers = [] + visited_ag_nodes = OrderedSet[torch.fx.Node]() + for node in reversed(graph.nodes): + for target, patterns in res_node_target_to_patterns.items(): + if node.target != target: + continue + for pattern, ag_node_idx in patterns: + match = pattern.match(node) + if not match: + continue + + assert isinstance(match, Match) + ag_node = match.nodes[ag_node_idx] + assert ag_node.target == c10d.all_gather_into_tensor.default + + if ag_node in visited_ag_nodes: + continue + visited_ag_nodes.add(ag_node) + + ag_match = _AllGatherMatch( + match=match, + shard_node=match.kwargs["shard"], + ag_node=ag_node, + res_node=node, + gather_dim=match.kwargs.get("gather_dim", 0), + group_name=match.kwargs["group_name"], + ) + all_gathers.append(ag_match) + + return list(reversed(all_gathers)) + + +@dataclass +class _ReduceScatterMatch: + match: Match + input_node: torch.fx.Node + reduce_scatter_node: torch.fx.Node + wait_tensor_node: torch.fx.Node + reduce_op: str + scatter_dim: int + group_name: "torch.distributed.distributed_c10d.GroupName" + + def replace_with(self, new_node: torch.fx.Node) -> None: + # Replace all uses of the result node (wait_tensor) with the fused node. + self.wait_tensor_node.replace_all_uses_with(new_node) + + # If the reduce-scatter result is saved for backward, save the fused node for backward instead. + self._update_save_for_backward(new_node) + + def _update_save_for_backward(self, new_node: torch.fx.Node) -> None: + """ + If the output node is a user of the reduce_scatter node (indicating the reduce_scatter + result is saved for backward), this method will update the output node to use the fused node instead. + """ + output_node = None + for user in self.reduce_scatter_node.users: + if user.target == "output": + output_node = user + break + if output_node is not None: + output_node.replace_input_with(self.reduce_scatter_node, new_node) + + # Assert that now the reduce scatter node has only one user (the wait_tensor) and it's not + # saved for backward anymore. + assert len(self.reduce_scatter_node.users) == 1, ( + "Reduce scatter node has multiple users, this is not expected" + ) + + def erase(self) -> None: + for node in reversed(self.match.nodes): + if len(node.users) == 0: + node.graph.erase_node(node) + + +def find_reduce_scatter_patterns(graph: torch.fx.Graph): + c10d = torch.ops._c10d_functional + + def reduce_scatter_template(inp: PatternExpr, users: int): + return CallFunction( + c10d.wait_tensor.default, + CallFunction( + c10d.reduce_scatter_tensor.default, + inp, + KeywordArg("reduce_op"), + Ignored(), + KeywordArg("group_name"), + _users=users, + ), + ) + + # Matches funcol.reduce_scatter_tensor with scatter_dim == 0 + zero_dim_reduce_scatter_pattern_single_user = reduce_scatter_template( + KeywordArg("input"), users=1 + ) + + # Two users will occur when the reduce-scatter result is saved for backward + zero_dim_reduce_scatter_pattern_multi_user = reduce_scatter_template( + KeywordArg("input"), users=2 + ) + + # Matches funcol.reduce_scatter_tensor with scatter_dim > 0 + non_zero_dim_reduce_scatter_pattern_single_user = reduce_scatter_template( + CallFunction( + aten.cat.default, + ListOf( + CallFunction( + operator.getitem, + CallFunction( + aten.split.Tensor, + KeywordArg("input"), + Ignored(), + KeywordArg("scatter_dim"), + _users=MULTIPLE, + ), + Ignored(), + ) + ), + ), + users=1, + ) + + # Two users will occur when the reduce-scatter result is saved for backward + non_zero_dim_reduce_scatter_pattern_multi_user = reduce_scatter_template( + CallFunction( + aten.cat.default, + ListOf( + CallFunction( + operator.getitem, + CallFunction( + aten.split.Tensor, + KeywordArg("input"), + Ignored(), + KeywordArg("scatter_dim"), + _users=MULTIPLE, + ), + Ignored(), + ) + ), + ), + users=2, + ) + + reduce_scatters = [] + for node in reversed(graph.nodes): + if node.target == c10d.wait_tensor.default: + if match := non_zero_dim_reduce_scatter_pattern_single_user.match(node): + assert isinstance(match, Match) + reduce_scatters.append( + _ReduceScatterMatch( + match=match, + input_node=match.kwargs["input"], + reduce_scatter_node=match.nodes[-2], + wait_tensor_node=node, + reduce_op=match.kwargs["reduce_op"], + scatter_dim=match.kwargs["scatter_dim"], + group_name=match.kwargs["group_name"], + ) + ) + elif match := zero_dim_reduce_scatter_pattern_single_user.match(node): + assert isinstance(match, Match) + reduce_scatters.append( + _ReduceScatterMatch( + match=match, + input_node=match.kwargs["input"], + reduce_scatter_node=match.nodes[0], + wait_tensor_node=node, + reduce_op=match.kwargs["reduce_op"], + scatter_dim=0, + group_name=match.kwargs["group_name"], + ) + ) + elif match := non_zero_dim_reduce_scatter_pattern_multi_user.match(node): + assert isinstance(match, Match) + reduce_scatters.append( + _ReduceScatterMatch( + match=match, + input_node=match.kwargs["input"], + reduce_scatter_node=match.nodes[-2], + wait_tensor_node=node, + reduce_op=match.kwargs["reduce_op"], + scatter_dim=match.kwargs["scatter_dim"], + group_name=match.kwargs["group_name"], + ) + ) + elif match := zero_dim_reduce_scatter_pattern_multi_user.match(node): + assert isinstance(match, Match) + reduce_scatters.append( + _ReduceScatterMatch( + match=match, + input_node=match.kwargs["input"], + reduce_scatter_node=match.nodes[0], + wait_tensor_node=node, + reduce_op=match.kwargs["reduce_op"], + scatter_dim=0, + group_name=match.kwargs["group_name"], + ) + ) + return list(reversed(reduce_scatters)) + + +@dataclass +class _Matmul: + nodes: list[torch.fx.Node] + arg_ancestor_nodes: OrderedSet[torch.fx.Node] = field(init=False) + A_node: torch.fx.Node + B_node: torch.fx.Node + pre_mm_reshape: torch.fx.Node | None + post_mm_reshape: torch.fx.Node | None + + def __post_init__(self): + assert len(self.nodes) in (1, 3) + if len(self.nodes) == 1: + assert self.nodes[0].target in (aten.mm.default, aten._scaled_mm.default) + else: + assert self.nodes[0].target is aten.reshape.default + assert self.nodes[1].target in (aten.mm.default, aten._scaled_mm.default) + assert self.nodes[2].target is aten.reshape.default + self.arg_ancestor_nodes = _find_ancestors(self.B_node) + + def replace_with(self, new_node: torch.fx.Node) -> None: + """ + Replace the matmul with the new node. + """ + graph = new_node.graph + + # For 2D-matmuls, we simply replace the mm node with `new_node`. + if len(self.nodes) == 1: + mm_node = self.nodes[0] + assert mm_node.target in (aten.mm.default, aten._scaled_mm.default) + mm_node.replace_all_uses_with(new_node) + graph.erase_node(mm_node) + return + + # An ND-matmul is reshape -> mm -> reshape sequence. We first replace + # the second reshape node with `new_node`. Then, we ensure that the + # original mm node in the sequence ends up with zero users by replacing + # it with a reverse reshape of `new_node`. + graph = new_node.graph + assert len(self.nodes) == 3 + mm_node = self.nodes[1] + output_reshape_node = self.nodes[2] + + assert mm_node.target in (aten.mm.default, aten._scaled_mm.default) + assert output_reshape_node.target is aten.reshape.default + + output_reshape_node.replace_all_uses_with(new_node) + if len(mm_node.users) > 1: + with graph.inserting_after(new_node): + new_mm_node = graph.call_function( + aten.reshape.default, + args=(new_node, list(_get_tensor(mm_node).shape)), + ) + mm_node.replace_all_uses_with(new_mm_node) + + def erase(self) -> None: + for node in reversed(self.nodes): + if len(node.users) == 0: + node.graph.erase_node(node) + + @classmethod + def from_match(cls, match: list[torch.fx.Node]) -> "_Matmul": + assert len(match) in (1, 3) + assert match[0].target in ( + aten.mm.default, + aten.reshape.default, + ) + mm_node = match[0] if len(match) == 1 else match[1] + return _Matmul( + nodes=match, + A_node=cast("torch.fx.Node", match[0].args[0]), + B_node=cast("torch.fx.Node", mm_node.args[1]), + # _Matmul handles reshapes via custom graph manipulation logic, see `replace_with()` method. + # TODO: explore unifying the _Matmul and _ScaledMatmul approaches to handling reshapes. + pre_mm_reshape=None, + post_mm_reshape=None, + ) + + +@dataclass +class _ScaledMatmul(_Matmul): + A_scale_node: torch.fx.Node + B_scale_node: torch.fx.Node + bias_node: torch.fx.Node | None + result_scale_node: torch.fx.Node | None + out_dtype: torch.dtype | None + use_fast_accum: bool + pre_mm_reshape: torch.fx.Node | None + post_mm_reshape: torch.fx.Node | None + + def __post_init__(self): + super().__post_init__() + self.arg_ancestor_nodes |= _find_ancestors(self.A_scale_node) + self.arg_ancestor_nodes |= _find_ancestors(self.B_scale_node) + + @classmethod + def from_match(cls, match: list[torch.fx.Node]) -> "_ScaledMatmul": + assert len(match) in (1, 3) + assert match[0].target in ( + aten._scaled_mm.default, + aten.reshape.default, + ) + + def get_arg(node: torch.fx.Node, idx: int, default: Any) -> Any: + if idx >= len(node.args): + return default + return node.args[idx] + + # Use mm_node with 2D args for both A and B, even if this is a "reshape -> mm -> reshape" pattern. + # We will store the reshapes in pre_mm_reshape and post_mm_reshape, to be referenced later to + # produce the correct output shapes, reduce-scatter along the correct dimensions, etc. + is_reshape_mm_reshape_pattern = match[0].target is aten.reshape.default + mm_node = match[1] if is_reshape_mm_reshape_pattern else match[0] + pre_mm_reshape = match[0] if is_reshape_mm_reshape_pattern else None + post_mm_reshape = match[-1] if is_reshape_mm_reshape_pattern else None + A_node = cast("torch.fx.Node", mm_node.args[0]) + B_node = cast("torch.fx.Node", mm_node.args[1]) + A_scale_node = cast("torch.fx.Node", mm_node.args[2]) + B_scale_node = cast("torch.fx.Node", mm_node.args[3]) + + return _ScaledMatmul( + nodes=match, + A_node=A_node, + B_node=B_node, + A_scale_node=A_scale_node, + B_scale_node=B_scale_node, + bias_node=get_arg(mm_node, 4, None), + result_scale_node=get_arg(mm_node, 5, None), + out_dtype=get_arg(mm_node, 6, None), + use_fast_accum=get_arg(mm_node, 7, False), + pre_mm_reshape=pre_mm_reshape, + post_mm_reshape=post_mm_reshape, + ) + + +def _find_reshape_mm_reshape(node: torch.fx.Node) -> list[_Matmul]: + if node.target != aten.reshape.default: + return [] + + matches = [] + for mm_node in node.users: + if mm_node.target not in (aten.mm.default, aten._scaled_mm.default): + continue + for reshape_node in mm_node.users: + if reshape_node.target != aten.reshape.default: + continue + + # Since the reshape -> mm -> reshape pattern would be subsumed into + # the fused op, we only match the patterns where the shape of the + # second reshape is matches the mm result produced by the fused op. + matmul_input_node = cast("torch.fx.Node", node.args[0]) + B_node = cast("torch.fx.Node", mm_node.args[1]) + matmul_out_shape = torch.Size( + [ + *_get_tensor(matmul_input_node).shape[:-1], + _get_tensor(B_node).shape[-1], + ] + ) + if _get_tensor(reshape_node).shape != matmul_out_shape: + continue + matches.append([node, mm_node, reshape_node]) + # If for some rare reason mm_node is being reshaped by two + # different reshape nodes, we only include mm_node once in the + # parsing result. + break + + matmuls = [] + for match in matches: + mm_node = match[1] + if mm_node.target is aten.mm.default: + matmul = _Matmul.from_match(match) + matmuls.append(matmul) + elif mm_node.target is aten._scaled_mm.default: + matmul = _ScaledMatmul.from_match(match) + matmuls.append(matmul) + else: + raise AssertionError( + "Expect the node's target to be either aten.mm.default or " + f"aten._scaled_mm.default. Got {mm_node.target}." + ) + return matmuls + + +def _find_consumer_matmuls(node: torch.fx.Node) -> list[_Matmul]: + """ + Find the matmuls that use `node` as the lhs argument. + """ + matmuls = [] + for user in node.users: + # ND matmuls + if user.target is aten.reshape.default: + matmuls.extend(_find_reshape_mm_reshape(user)) + # 2D matmuls + elif user.target is aten.mm.default: + matmul = _Matmul.from_match(match=[user]) + matmuls.append(matmul) + elif user.target is aten._scaled_mm.default: + matmul = _ScaledMatmul.from_match([user]) + matmuls.append(matmul) + return matmuls + + +def _insert_fused_all_gather_matmul( + graph: torch.fx.Graph, + matmuls: list[_Matmul], + shard_node: torch.fx.Node, + gather_dim: int, + group_name: "torch.distributed.distributed_c10d.GroupName", +) -> torch.fx.Node: + mm_types = OrderedSet(map(type, matmuls)) + assert len(mm_types) == 1 + mm_type = next(iter(mm_types)) + if mm_type == _Matmul: + B_nodes = [matmul.B_node for matmul in matmuls] + return graph.call_function( + torch.ops.symm_mem.fused_all_gather_matmul.default, + args=(shard_node, B_nodes, gather_dim, group_name), + kwargs={"return_A": True}, + ) + elif mm_type == _ScaledMatmul: + scaled_matmuls = cast("list[_ScaledMatmul]", matmuls) + return graph.call_function( + torch.ops.symm_mem.fused_all_gather_scaled_matmul.default, + args=( + shard_node, + [matmul.B_node for matmul in scaled_matmuls], + scaled_matmuls[0].A_scale_node, + [matmul.B_scale_node for matmul in scaled_matmuls], + gather_dim, + group_name, + [matmul.bias_node for matmul in scaled_matmuls], + [matmul.result_scale_node for matmul in scaled_matmuls], + [matmul.out_dtype for matmul in scaled_matmuls], + [matmul.use_fast_accum for matmul in scaled_matmuls], + ), + ) + else: + raise AssertionError(f"Unexpected matmul match type: {mm_type}") + + +def fuse_all_gather_matmul(all_gather: _AllGatherMatch) -> None: + """ + Fused the pattern + + A = all_gather_tensor(A_shard, gather_dim, group_name) + C_0 = torch.matmul(A, B_0) + C_1 = torch.matmul(A, B_1) + C_2 = torch.matmul(A, B_2) + ... + + into + + A, Cs = torch.ops.symm_mem.fused_all_gather_matmul( + A_shard, [B_0, B_1, B_2, ...], gather_dim, group_name, + ) + """ + if ( + not torch.distributed.is_available() + or not torch.distributed.is_nccl_available() + ): + return + + from torch.distributed._symmetric_memory import ( + is_symm_mem_enabled_for_group, + restride_A_shard_for_fused_all_gather_matmul, + ) + + shard_node, ag_node, ag_res_node, gather_dim, group_name = ( + all_gather.shard_node, + all_gather.ag_node, + all_gather.res_node, + all_gather.gather_dim, + all_gather.group_name, + ) + + if not is_symm_mem_enabled_for_group(group_name): + return + + filter_matmul = None + if _is_last_dim(_get_tensor(shard_node), gather_dim): + # Decomposed mms should not be too small + if _get_tensor(shard_node).shape[-1] < 1024: + return + + # scaled_mm is not supported yet for last dim + def _filter_out_scaled_matmul(matmul: _Matmul): + return not isinstance(matmul, _ScaledMatmul) + + filter_matmul = _filter_out_scaled_matmul + + # Find consumer matmuls + matmuls = _find_consumer_matmuls(ag_res_node) + + # The matmuls are only fusible if non-A args don't depend on the all-gather + # result node + matmuls = [ + matmul + for matmul in matmuls + if all_gather.res_node not in matmul.arg_ancestor_nodes + ] + + if len(matmuls) == 0 or len(OrderedSet(map(type, matmuls))) != 1: + return + + if _is_last_dim(_get_tensor(shard_node), gather_dim) and len( + all_gather.res_node.users + ) > len(matmuls): + # The result of ag-split-cat is used not only in matmuls. + # Then it has to be materialized, which can have overhead. + return + + if filter_matmul and not filter_matmul(matmuls[0]): + return + + # Fuse the all_gather_tensor with the eligible matmuls + graph = ag_node.graph + with graph.inserting_before(ag_node): + if not _is_last_dim(_get_tensor(shard_node), gather_dim): + if "val" in shard_node.meta: + restrided = restride_A_shard_for_fused_all_gather_matmul( + _get_tensor(shard_node), + gather_dim, + ) + shard_node = graph.call_function( + inductor_prims.force_stride_order, + args=(shard_node, restrided.stride()), + ) + + fused_node = _insert_fused_all_gather_matmul( + graph, matmuls, shard_node, gather_dim, group_name + ) + new_ag_node = graph.call_function( + operator.getitem, + args=(fused_node, 0), + ) + new_out_nodes = graph.call_function( + operator.getitem, + args=(fused_node, 1), + ) + for idx, matmul in enumerate(matmuls): + new_out_node = graph.call_function( + operator.getitem, + args=(new_out_nodes, idx), + ) + matmul.replace_with(new_out_node) + matmul.erase() + all_gather.replace_with(new_ag_node) + all_gather.erase() + + # If the new_ag_node has no users, we tell the fused op to not return + # it. This creates more optimization opportunities. + if len(new_ag_node.users) == 0: + graph.erase_node(new_ag_node) + kwargs = dict(fused_node.kwargs) + if "return_A" in kwargs: + kwargs["return_A"] = False + fused_node.kwargs = kwargs + + # Raise ancestors of non-A args that are topologically ordered between + # ag_res_node and the matmul above fused_node. + order = {node: idx for idx, node in enumerate(graph.nodes)} + nodes_to_raise = sorted( + OrderedSet(x for matmul in matmuls for x in matmul.arg_ancestor_nodes), + key=lambda x: order[x], + ) + for node in nodes_to_raise: + if order[node] > order[fused_node]: + fused_node.prepend(node) + + +def _scatter_dim_after_reshape( + reshape_node: torch.fx.Node, orig_scatter_dim: int +) -> int: + """ + Given a reshape node and the original scatter dim for the target tensor, + returns the new scatter dim for the reshaped tensor. + """ + # if there was no pre-mm reshape, scatter dim will not change. + if not reshape_node: + return orig_scatter_dim + + reshape_op_output_tensor = _get_tensor(reshape_node) + assert reshape_op_output_tensor.ndim == 2, ( + "reshape must produce 2D tensor for scaled_mm" + ) + + assert len(reshape_node.args) >= 1, "reshape node must have at least 1 arg" + input_tensor_node = cast(torch.fx.Node, reshape_node.args[0]) + reshape_op_input_tensor = _get_tensor(input_tensor_node) + assert reshape_op_input_tensor.ndim > reshape_op_output_tensor.ndim, ( + "reshape must be from 3D+ to 2D" + ) + + # Note: for a N-D tensor to be reshaped into 2D, either the leading dims or ending dims must + # be collapsed to a single dim. First determine which of these happened. + input_shape = reshape_op_input_tensor.shape + output_shape = reshape_op_output_tensor.shape + leading_dims_collapsed = output_shape[0] == prod(input_shape[:-1]) + + # Case 1: scatter dim 0 always maps to 0 after any reshape from 3D+ to 2D, regardless if + # leading dims or ending dims were collapsed. + if orig_scatter_dim == 0: + return 0 + + # Case 2: scatter dim "ndim-1" always maps to 1 after any reshape from 3D+ to 2D, regardless if + # leading dims or ending dims were collapsed. + if orig_scatter_dim == reshape_op_input_tensor.ndim - 1: + return 1 + + # Case 3: scatter dim was one of the middle dims (between 0 and ndim-1). + # if the leading dims were collapsed, the new scatter dim will be 0. + # if the ending dims were collapsed, the new scatter dim will be 1. + return 0 if leading_dims_collapsed else 1 + + +def _find_producer_matmul(node: torch.fx.Node) -> _Matmul | None: + """ + Returns producer matmul node if found, otherwise returns None. + """ + if node.target is aten.mm.default: + return _Matmul.from_match(match=[node]) + elif node.target is aten._scaled_mm.default: + return _ScaledMatmul.from_match(match=[node]) + elif node.target is aten.reshape.default: + reshape_node_1 = node + + mm_node = reshape_node_1.args[0] + assert isinstance(mm_node, torch.fx.Node) + if mm_node.target not in (aten.mm.default, aten._scaled_mm.default): + return None + + reshape_node_0 = mm_node.args[0] + assert isinstance(reshape_node_0, torch.fx.Node) + if reshape_node_0.target != aten.reshape.default: + return None + + if mm_node.target is aten.mm.default: + return _Matmul.from_match(match=[reshape_node_0, mm_node, reshape_node_1]) + elif mm_node.target is aten._scaled_mm.default: + return _ScaledMatmul.from_match( + match=[reshape_node_0, mm_node, reshape_node_1] + ) + return None + + +def _insert_fused_matmul_reduce_scatter( + graph: torch.fx.Graph, + matmul: _Matmul, + reduce_op: str, + orig_scatter_dim: int, + group_name: "torch.distributed.distributed_c10d.GroupName", + scatter_dim_after_reshape: int, # only used for reshape -> scaled_mm -> reshape pattern + output_shape: list[int], # only used for reshape -> scaled_mm -> reshape pattern +) -> torch.fx.Node: + if type(matmul) is _Matmul: + return graph.call_function( + torch.ops.symm_mem.fused_matmul_reduce_scatter.default, + args=( + matmul.A_node, + matmul.B_node, + reduce_op, + orig_scatter_dim, + group_name, + ), + ) + elif type(matmul) is _ScaledMatmul: + return graph.call_function( + torch.ops.symm_mem.fused_scaled_matmul_reduce_scatter.default, + args=( + matmul.A_node, + matmul.B_node, + matmul.A_scale_node, + matmul.B_scale_node, + reduce_op, + orig_scatter_dim, + scatter_dim_after_reshape, + group_name, + output_shape, + matmul.bias_node, + matmul.result_scale_node, + matmul.out_dtype, + matmul.use_fast_accum, + ), + ) + else: + raise AssertionError(f"Unexpected matmul match type: {type(matmul)}") + + +def fuse_matmul_reduce_scatter(reduce_scatter: _ReduceScatterMatch) -> None: + """ + Fused the pattern + + reduce_scatter_tensor(A @ B, scatter_dim, group_name) + + into + + torch.ops.symm_mem.fused_matmul_reduce_scatter( + A, B, scatter_dim, group_name, + ) + + Returns boolean indicating if fusion was successful or not. + """ + if ( + not torch.distributed.is_available() + or not torch.distributed.is_nccl_available() + ): + return + + from torch.distributed._symmetric_memory import ( + is_symm_mem_enabled_for_group, + restride_A_for_fused_matmul_reduce_scatter, + ) + + ( + input_node, + _reduce_scatter_node, + rs_wait_tensor_node, + reduce_op, + orig_scatter_dim, + group_name, + ) = ( + reduce_scatter.input_node, + reduce_scatter.reduce_scatter_node, + reduce_scatter.wait_tensor_node, + reduce_scatter.reduce_op, + reduce_scatter.scatter_dim, + reduce_scatter.group_name, + ) + + if not is_symm_mem_enabled_for_group(group_name): + return + + filter_matmul = None + if _is_last_dim(_get_tensor(input_node), orig_scatter_dim): + # scaled_mm is not supported yet for last dim mm+rs + def _filter_out_scaled_matmul(matmul: _Matmul): + return not isinstance(matmul, _ScaledMatmul) + + filter_matmul = _filter_out_scaled_matmul + + # Currently fused_matmul_reduce_scatter doesn't return the matmul result, + # so we can't apply the fusion if the matmul result is used by multiple + # users. This is not a fundamental limitation of the fused op and can be + # addressed if needed. + if len(input_node.users) != 1: + log.warning( + "matmul result has more than one user, skipping fused_matmul_reduce_scatter fusion." + ) + return + + matmul = _find_producer_matmul(input_node) + + if matmul is None: + log.warning( + "no producer matmul found for reduce scatter, skipping fuse_matmul_reduce_scatter fusion" + ) + return + + if filter_matmul and not filter_matmul(matmul): + return + + if rs_wait_tensor_node in matmul.arg_ancestor_nodes: + log.warning( + "reduce-scatter result node is an ancestor of matmul, skipping fuse_matmul_reduce_scatter fusion" + ) + return + + # We need to track 3 values for the fused scaled mm reduce scatter implementation: + # 1. The scatter dim before the reshape, which was assigned using the original (a,b,c) @ (c,d) = (a,b,d) dims. + # 2. The scatter dim after the reshape, to use when we are doing the 2D (a*b,c) @ (c,d) = (a,b,d) scaled mm op. + # 3. Store expected potentially 3D+ mm output shape, so we can reshape the 2D mm output to the intended + # 3D+ shape before applying reduce-scatter, and to prevent shape errors with subsequent ops. + + # If 'A' was reshaped from 3D+ -> 2D for the mm, we need to determine the new scattter dim after the reshape + # for the fused matmul reduce scatter implementation to use. + if matmul.pre_mm_reshape: + scatter_dim_after_maybe_reshape = _scatter_dim_after_reshape( + matmul.pre_mm_reshape, orig_scatter_dim + ) + else: + scatter_dim_after_maybe_reshape = orig_scatter_dim + + # If the 2D mm output was reshaped from 2D -> 3D+, we need to store the intended output shape for the + # fused matmul reduce scatter implementation to use. + if matmul.post_mm_reshape: + output_shape = list(_get_tensor(matmul.post_mm_reshape).shape) + else: + A_orig_shape = list(_get_tensor(matmul.A_node).shape) + B_shape = list(_get_tensor(matmul.B_node).shape) + output_shape = [*A_orig_shape[:-1], B_shape[-1]] + + graph = rs_wait_tensor_node.graph + with graph.inserting_before(rs_wait_tensor_node): + # Restride A tensor before fused op, for optimal perf in fused matmul reduce scatter + if "val" in matmul.A_node.meta: + restrided = restride_A_for_fused_matmul_reduce_scatter( + _get_tensor(matmul.A_node), + scatter_dim_after_maybe_reshape, + ) + matmul.A_node = graph.call_function( + inductor_prims.force_stride_order, + args=(matmul.A_node, restrided.stride()), + ) + + # Replace matched subgraph with fused matmul reduce scatter node + fused_node = _insert_fused_matmul_reduce_scatter( + graph, + matmul, + reduce_op, + orig_scatter_dim, + group_name, + scatter_dim_after_maybe_reshape, + output_shape, + ) + reduce_scatter.replace_with(fused_node) + reduce_scatter.erase() + matmul.erase() + + order = {node: idx for idx, node in enumerate(graph.nodes)} + nodes_to_raise = sorted( + matmul.arg_ancestor_nodes, + key=lambda x: order[x], + ) + for node in nodes_to_raise: + if order[node] > order[fused_node]: + fused_node.prepend(node) + + log.debug("successfully fused matmul reduce scatter") + + +def _get_node_to_ancestors( + graph: torch.fx.Graph, +) -> dict[torch.fx.Node, OrderedSet[torch.fx.Node]]: + """ + Compute the ancestors for all nodes in a graph. + """ + node_to_ancestors = defaultdict(OrderedSet[torch.fx.Node]) # type: ignore[var-annotated] + for node in graph.nodes: + node_to_ancestors[node] = OrderedSet(node.all_input_nodes) + for dep in node.all_input_nodes: + node_to_ancestors[node] |= node_to_ancestors[dep] + + return node_to_ancestors + + +def _get_collective_to_overlappable_nodes( + graph: torch.fx.Graph, +) -> dict[torch.fx.Node, list[torch.fx.Node]]: + """ + For each collective in the graph, find nodes that are neither ancestors nor + descendants of the collective. + """ + + def is_collective(node) -> bool: + # Only consider all-gather and reduce-scatter in the context of + # micro-pipeline TP. + return node.target in [ + torch.ops._c10d_functional.all_gather_into_tensor.default, + torch.ops._c10d_functional.reduce_scatter_tensor.default, + ] + + node_to_ancestors = _get_node_to_ancestors(graph) + collective_to_overlappable_nodes = defaultdict(list) + for node in graph.nodes: + if not is_collective(node): + continue + for x in graph.nodes: + if ( + node not in node_to_ancestors[x] + and x not in node_to_ancestors[node] + and x.op == "call_function" + ): + collective_to_overlappable_nodes[node].append(x) + + return collective_to_overlappable_nodes + + +def _get_unexposed_collectives(graph: torch.fx.Graph) -> list[torch.fx.Node]: + """ + Find all unexposed collectives in the graph. + + Because we don't have the runtime estimate, this function is a rough + estimation using the following strong/hand-wavy assumptions: + + - Only a predefined set of "compute intensive" operation can hide a collective. + - Any "compute intensive" operation can hide exactly one collective. + """ + + def _is_compute_intensive(node: torch.fx.Node) -> bool: + return node.target is torch.ops.aten.mm.default + + collective_to_overlapping_candidates = defaultdict(list) + available_nodes = OrderedSet[torch.fx.Node]() + collective_to_overlappable_nodes = _get_collective_to_overlappable_nodes(graph) + for collective, overlappable_nodes in collective_to_overlappable_nodes.items(): + candidates = [x for x in overlappable_nodes if _is_compute_intensive(x)] + collective_to_overlapping_candidates[collective] = candidates + available_nodes.update(candidates) + + unexposed_collectives = [] + for ( + collective, + overlapping_candidates, + ) in collective_to_overlapping_candidates.items(): + # Each collective consumes exactly one overlapping candidate + for x in overlapping_candidates: + if x in available_nodes: + unexposed_collectives.append(collective) + available_nodes.remove(x) + break + return unexposed_collectives + + +def micro_pipeline_tp_pass(graph: torch.fx.Graph): + all_gathers = find_all_gather_patterns(graph) + reduce_scatters = find_reduce_scatter_patterns(graph) + + # When a collective can be hidden through either simple overlapping or + # micro-pipeline TP, we prefer simple overlapping to avoid the overhead + # associated with decomposition. If reorder_for_compute_comm_overlap is + # enabled, we identify collectives that can be hidden through simple + # overlapping and exclude them from micro-pipeline TP candidates. + if config.reorder_for_compute_comm_overlap: + unexposed_collectives = _get_unexposed_collectives(graph) + all_gathers = [x for x in all_gathers if x.ag_node not in unexposed_collectives] + reduce_scatters = [ + x + for x in reduce_scatters + if x.reduce_scatter_node not in unexposed_collectives + ] + + if not all_gathers and not reduce_scatters: + log.warning( + "async TP found no matching all-gather/reduce-scatter patterns for fusion" + ) + + for all_gather in all_gathers: + fuse_all_gather_matmul(all_gather) + + for reduce_scatter in reduce_scatters: + fuse_matmul_reduce_scatter(reduce_scatter) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/misc_patterns.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/misc_patterns.py new file mode 100644 index 0000000000000000000000000000000000000000..ff0981e72e8b2f1e4f4d618c7bcc4dc0afa970c5 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/misc_patterns.py @@ -0,0 +1,139 @@ +# mypy: allow-untyped-defs +import functools + +import torch +from torch._dynamo.utils import counters +from torch._ops import OpOverload, OpOverloadPacket +from torch.utils._ordered_set import OrderedSet + +from ..pattern_matcher import fwd_only, register_replacement + + +aten = torch.ops.aten + + +@functools.cache +def _misc_patterns_init(): + from .joint_graph import patterns as joint_graph_patterns + from .post_grad import pass_patterns as post_grad_patterns_all + + post_grad_patterns = post_grad_patterns_all[1] # medium priority + + if torch.cuda.is_available(): + # workaround https://github.com/pytorch/pytorch/issues/97894 + device = "cuda" + else: + device = "cpu" + + # These patterns do 2 things + # 1. Since we know that index is completely unique, we can codegen it using + # stores instead of atomic adds, which is quite a bit faster. + # 2. Also, since we are guaranteed that they are completely within bounds, + # we can use unsafe indexing and skip debug asserts + def randperm_index_add_pattern(x, y): + index = torch.randperm(x.shape[0], device=x.device)[: y.shape[0]] + return torch.index_add(x, dim=0, source=y, index=index), index + + def randperm_index_add_replacement(x, y): + index = torch.randperm(x.shape[0], device=x.device)[: y.shape[0]] + return ( + torch.ops.aten._unsafe_index_put( + x, (index,), aten._unsafe_index(x, (index,)) + y, accumulate=False + ), + index, + ) + + register_replacement( + # pyrefly: ignore [bad-argument-type] + randperm_index_add_pattern, + # pyrefly: ignore [bad-argument-type] + randperm_index_add_replacement, + [torch.empty(4, 8, device=device), torch.empty(2, 8, device=device)], + # pyrefly: ignore [bad-argument-type] + fwd_only, + # pyrefly: ignore [bad-argument-type] + [post_grad_patterns, joint_graph_patterns], + ) + + def randperm_index_pattern(x, slice_shape): + index = torch.randperm(x.shape[0], device=x.device)[:slice_shape] + return torch.ops.aten.index(x, (index,)), index + + def randperm_index_replacement(x, slice_shape): + index = torch.randperm(x.shape[0], device=x.device)[:slice_shape] + return torch.ops.aten._unsafe_index(x, (index,)), index + + register_replacement( + # pyrefly: ignore [bad-argument-type] + randperm_index_pattern, + # pyrefly: ignore [bad-argument-type] + randperm_index_replacement, + [torch.empty(4, 8, device=device)], + # pyrefly: ignore [bad-argument-type] + fwd_only, + # pyrefly: ignore [bad-argument-type] + [post_grad_patterns, joint_graph_patterns], + scalar_workaround={"slice_shape": 42}, + ) + + +class NumpyCompatNormalization: + numpy_compat: dict[str, tuple[str, ...]] = { + "dim": ("axis",), + "keepdim": ("keepdims",), + "input": ("x", "a", "x1"), + "other": ("x2",), + } + inverse_mapping: dict[str, str] + cache: dict["torch.fx.graph.Target", OrderedSet[str]] + + def __init__(self) -> None: + self.cache = {} # callable -> tuple of replaceable args e.g. ["axis"] + self.inverse_mapping = {} + for actual_kwarg, numpy_kwargs in self.numpy_compat.items(): + for numpy_kwarg in numpy_kwargs: + assert numpy_kwarg not in self.inverse_mapping + self.inverse_mapping[numpy_kwarg] = actual_kwarg + + def __call__(self, graph: torch.fx.Graph): + for node in graph.nodes: + if node.op != "call_function": + continue + if isinstance(node.target, (OpOverload, OpOverloadPacket)): + # only applies to torch ops; e.g. torch.stack(axis=1) works, torch.ops.aten.stack(axis=1) doesn't. + continue + kwargs = node.kwargs + + if node.target in self.cache: + replaceable_kwargs = self.cache[node.target] + else: + signatures = torch.fx.operator_schemas.get_signature_for_torch_op( + node.target + ) + signatures = () if signatures is None else signatures + replaceable_kwargs = OrderedSet() + for sig in signatures: + for param_name in sig.parameters: + if param_name in self.numpy_compat: + replaceable_kwargs.update(self.numpy_compat[param_name]) + + self.cache[node.target] = replaceable_kwargs + + if not replaceable_kwargs: + continue + + new_kwargs = {} + kwargs_changed = False + for k, v in kwargs.items(): + if k in replaceable_kwargs: + kwargs_changed = True + new_kwargs[self.inverse_mapping[k]] = v + else: + new_kwargs[k] = v + + if kwargs_changed: + node.kwargs = torch.fx.immutable_collections.immutable_dict(new_kwargs) + counters["inductor"]["numpy_compat_normalization"] += 1 + + +numpy_compat_normalization = NumpyCompatNormalization() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/mkldnn_fusion.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/mkldnn_fusion.py new file mode 100644 index 0000000000000000000000000000000000000000..8f729596cbb1f180d377a8e895b3a2fe12c8e1be --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/mkldnn_fusion.py @@ -0,0 +1,1585 @@ +# mypy: allow-untyped-defs +import functools +import operator +from functools import reduce +from typing import Any, TYPE_CHECKING + +import torch +from torch._dynamo.utils import counters +from torch.fx.experimental.symbolic_shapes import has_free_symbols +from torch.utils._ordered_set import OrderedSet + +from .. import ir, mkldnn_ir +from ..lowering import lowerings as L +from ..pattern_matcher import ( + Arg, + CallFunction, + filter_nodes, + get_arg_value, + KeywordArg, + MULTIPLE, +) +from ..utils import ( + is_mkldnn_bf16_supported, + is_mkldnn_fp16_supported, + SUPPORTED_MKLDNN_DEVICES, +) +from ..virtualized import ops, V +from .freezing_patterns import register_freezing_graph_pattern +from .post_grad import register_lowering_pattern +from .quantization import ( + _register_int8_woq_concat_linear_pattern, + _register_quantization_lowerings, + _register_quantization_weight_pack_pass, + _register_woq_lowerings, +) + + +if TYPE_CHECKING: + from collections.abc import Callable + + +if torch._C._has_mkldnn: + aten = torch.ops.aten + mkldnn = torch.ops.mkldnn + prims = torch.ops.prims + + _conv_args = [Arg() for _ in range(10)] + _linear_args = [Arg() for _ in range(6)] + _conv_transpose_args = [Arg() for _ in range(11)] + + class MkldnnDeviceOpBase: + def get_linear_transpose_weight(self, weight_node): + raise NotImplementedError + + def pack_conv_weight( + self, + graph, + is_transposed, + weight, + constant_args, + input_size, + ): + raise NotImplementedError + + def pack_linear_weight( + self, graph, is_lp_weight, transpose_weight_node, batch_size + ): + raise NotImplementedError + + def pack_linear( + self, graph, is_lp_weight, batch_size, input, packed_weight_node, bias + ): + raise NotImplementedError + + class CpuMkldnnDeviceOp(MkldnnDeviceOpBase): + def get_linear_transpose_weight(self, weight_node): + packed_weight_node = weight_node + assert packed_weight_node.target == mkldnn._reorder_linear_weight + transpose_weight_node = packed_weight_node.args[0] + assert transpose_weight_node.target is aten.permute.default + return transpose_weight_node + + def pack_conv_weight( + self, + graph, + is_transposed, + weight, + constant_args, + input_size, + ): + packed_weight_op = mkldnn._reorder_convolution_weight + if is_transposed: + packed_weight_op = mkldnn._reorder_convolution_transpose_weight + + # mkldnn_reorder_conv_weight(self, padding, stride, dilation, groups, input_size) + packed_weight_inputs = (weight,) + tuple(constant_args) + (input_size,) + return graph.create_node( + "call_function", packed_weight_op, args=packed_weight_inputs + ) + + def pack_linear_weight( + self, graph, is_lp_weight, transpose_weight_node, batch_size + ): + # For bfloat16 dynamic shape path, using input size hint to pack weight for a better performance. + packed_weight_inputs = ( + transpose_weight_node, + batch_size.node.shape_env.size_hint(batch_size.node.expr) + if has_free_symbols(batch_size) + else batch_size, + ) + + # MKL packed matrix can't be copied to a different address because the internal implementation + # depends on the alignment of internally-stored metadata. + # In aot mode, we need to firstly save the packed weight, when loading it, + # it will be in a different address which doesn't work. + # Disable MKL prepack linear in AOT mode. + # Disable MKL prepack linear when batch_size has free symbols. + packed_weight_op = ( + mkldnn._reorder_linear_weight + if ( + is_lp_weight + or mkldnn._is_mkldnn_acl_supported() + or V.aot_compilation + or has_free_symbols(batch_size) + ) + else torch.ops.mkl._mkl_reorder_linear_weight + ) + return graph.create_node( + "call_function", packed_weight_op, args=packed_weight_inputs + ) + + def pack_linear( + self, graph, is_lp_weight, batch_size, input, packed_weight_node, bias + ): + packed_linear_inputs: tuple[Any, ...] = (input, packed_weight_node) + transpose_weight_node = packed_weight_node.args[0] + if ( + is_lp_weight + or mkldnn._is_mkldnn_acl_supported() + or V.aot_compilation + or has_free_symbols(batch_size) + ): + packed_linear_inputs += (bias, "none", [], "") + packed_linear_op: Callable[..., Any] = mkldnn._linear_pointwise.default + else: + packed_linear_inputs += (transpose_weight_node, bias, batch_size) + packed_linear_op = torch.ops.mkl._mkl_linear + + return graph.create_node( + "call_function", packed_linear_op, packed_linear_inputs + ) + + class XpuMkldnnDeviceOp(MkldnnDeviceOpBase): + def pack_conv_weight( + self, + graph, + is_transposed, + weight, + constant_args, + input_size, + ): + assert not is_transposed, ( + "'mkldnn::_convolution_transpose_pointwise' is not currently implemented for the XPU device." + ) + return weight + + def _get_mkldnn_device_op(device_type: str) -> MkldnnDeviceOpBase: + """ + Returns the MKLDNN device operation class based on the current device type. + """ + if device_type == "cpu": + return CpuMkldnnDeviceOp() + elif device_type == "xpu": + return XpuMkldnnDeviceOp() + else: + raise RuntimeError(f"MKLDNN is not supported on {device_type} device.") + + def _is_valid_grouped_gemm_fusion(computation_nodes): + """ + Here we check: + 1. More than 1 GEMM nodes has been found. + 2. All the GEMM nodes share the same activation. + 3. All the GEMM nodes have same weight size but different wgt node. + """ + computation_op = mkldnn._linear_pointwise.default + act = computation_nodes[0].args[0] + wgt = computation_nodes[0].args[1] + wgt_size = wgt.meta.get("val").size() # type: ignore[union-attr] + return len(computation_nodes) >= 2 and all( + ( + node.target == computation_op + and node.args[0] == act + and (node.args[1].meta.get("val").size() == wgt_size) + and (node.args[1] != wgt or gemm_idx == 0) + ) + for gemm_idx, node in enumerate(computation_nodes) + ) + + def grouped_gemm_pass(graph: torch.fx.Graph): + """ + Group GEMM has multi output nodes which is complicated to define a Pattern. + Use below way to connect the pattern to the lowering. + TODO: Use MultiOutputPattern, current limitation is the pattern requires + fixed number of output nodes. Extend to support Group GEMM for pattern matcher. + """ + computation_op = mkldnn._linear_pointwise.default + from ..mkldnn_lowerings import grouped_gemm_lowering + + for node in graph.find_nodes(op="call_function", target=computation_op): + if ( + not node._erased + and isinstance(node.meta.get("val"), torch.Tensor) + and node.meta["val"].device.type == "cpu" + ): + act = node.args[0] + users = list(act.users) + if _is_valid_grouped_gemm_fusion(users): + with graph.inserting_before(node): + grouped_gemm_node = graph.create_node( + "call_function", + grouped_gemm_lowering, + ( + act, + [user.args[1] for user in users], + [user.args[2] for user in users], + ), + ) + grouped_gemm_node.meta["val"] = [ + user.meta["val"] for user in users + ] + with graph.inserting_after(grouped_gemm_node): + for gemm_idx, user in enumerate(users): + assert user.target == computation_op + get_item = graph.create_node( + "call_function", + operator.getitem, + ( + grouped_gemm_node, + gemm_idx, + ), + ) + user.replace_all_uses_with(get_item) + graph.erase_node(user) + return + + def _conv_call(users=1): + return CallFunction( + mkldnn._convolution_pointwise.default, *_conv_args, _users=users + ) + + def _linear_call(users=1): + return CallFunction( + mkldnn._linear_pointwise.default, *_linear_args, _users=users + ) + + def _conv_transpose_call(users=1): + return CallFunction( + mkldnn._convolution_transpose_pointwise.default, + *_conv_transpose_args, + _users=users, + ) + + def _to_float(input_call, users=1): + return CallFunction( + prims.convert_element_type.default, + input_call, + KeywordArg("to_float"), + _users=users, + ) + + def _to_bf16(input_call): + return CallFunction( + prims.convert_element_type.default, + input_call, + KeywordArg("to_bf16"), + _users=1, + ) + + def _to_fp16(input_call): + return CallFunction( + prims.convert_element_type.default, + input_call, + KeywordArg("to_fp16"), + _users=1, + ) + + def _unary_fusion_pattern(unary_fusion, call_fn, users, lowp_dtype): + # only insert to_dtype if lowp_dtype is True + computation_call = ( + _to_float(call_fn(), users=users) if lowp_dtype else call_fn(users=users) + ) + out = unary_fusion(computation_call) + if lowp_dtype == torch.bfloat16: + return _to_bf16(out) + elif lowp_dtype == torch.float16: + return _to_fp16(out) + else: + return out + + def _gelu_fusion_1(computation_call): + return CallFunction( + aten.mul, + CallFunction(aten.mul, computation_call, 0.5), + CallFunction( + aten.add, + CallFunction( + aten.erf, + CallFunction(aten.mul, computation_call, 0.7071067811865476), + ), + 1, + ), + ) + + def _gelu_fusion_2(computation_call): + return CallFunction( + aten.mul, + CallFunction(aten.mul, computation_call, 0.5), + CallFunction( + aten.add, + CallFunction( + aten.tanh, + CallFunction( + aten.mul, + CallFunction( + aten.add, + computation_call, + CallFunction( + aten.mul, + CallFunction( + aten.mul, + CallFunction( + aten.mul, computation_call, computation_call + ), + computation_call, + ), + 0.044715, + ), + ), + 0.7978845608028654, + ), + ), + 1, + ), + ) + + def _hardswish_fusion(computation_call): + return CallFunction( + aten.div, + CallFunction( + aten.mul, + computation_call, + CallFunction( + aten.clamp_max, + CallFunction( + aten.clamp_min, CallFunction(aten.add, computation_call, 3), 0 + ), + 6, + ), + ), + 6, + ) + + def _silu_fusion(computation_call): + return CallFunction( + aten.mul, computation_call, CallFunction(aten.sigmoid, computation_call) + ) + + def _hardsigmoid_fusion(computation_call): + return CallFunction( + aten.div, + CallFunction( + aten.clamp_max, + CallFunction( + aten.clamp_min, CallFunction(aten.add, computation_call, 3), 0 + ), + 6, + ), + 6, + ) + + def _leaky_relu_fusion(computation_call): + return CallFunction( + aten.where, + CallFunction(aten.gt, computation_call, 0), + computation_call, + CallFunction(aten.mul, computation_call, KeywordArg("negative_slope")), + ) + + def _hardtanh_fusion(computation_call): + return CallFunction( + aten.clamp_max, + CallFunction(aten.clamp_min, computation_call, KeywordArg("min_value")), + KeywordArg("max_value"), + ) + + def _combined_fusion(computation_call, elementwise_op): + return CallFunction(elementwise_op, computation_call) + + # binary_op(other, computation_op) + def _binary_fusion_v1(computation_call, binary_fn): + return CallFunction(binary_fn, KeywordArg("other"), computation_call) + + # binary_op(computation_op, other) + def _binary_fusion_v2(computation_call, binary_fn): + return CallFunction(binary_fn, computation_call, KeywordArg("other")) + + def _is_single_computation_op(computation_op, lowp_dtype=None): + def fn(match): + computation_nodes = filter_nodes(match.nodes, computation_op) + + if lowp_dtype: + output_node_meta = match.output_node().meta.get("val") + if output_node_meta.dtype != lowp_dtype: + return False + + if len(computation_nodes) < 1: + return False + if any(n.args[-3] != "none" for n in computation_nodes): + return False + return True + + return fn + + def _is_valid_computation_unary_fusion(computation_op, lowp_dtype=None): + def fn(match): + matched = _is_single_computation_op(computation_op, lowp_dtype)(match) + computation_node = filter_nodes(match.nodes, computation_op)[0] + if lowp_dtype: + conversion_dtype_nodes = filter_nodes( + match.nodes, prims.convert_element_type.default + ) + if len(conversion_dtype_nodes) != 2: + return False + # fusion pattern is always in the form of computation_op + to_float32 + unary_op + to_bfloat16 + if computation_node == conversion_dtype_nodes[0].args[0]: + to_float = conversion_dtype_nodes[0].args[1] + to_lp = conversion_dtype_nodes[1].args[1] + else: + to_float = conversion_dtype_nodes[1].args[1] + to_lp = conversion_dtype_nodes[0].args[1] + matched = matched and to_float == torch.float and to_lp == lowp_dtype + return matched + + return fn + + def _register_unary_fusion_lowering( + pattern, unary_attr, computation_op, lowp_dtype=None + ): + @register_lowering_pattern( + pattern, + extra_check=_is_valid_computation_unary_fusion(computation_op, lowp_dtype), + ) + def fn(match, *args, **kwargs): + computation_args = list(args)[:-3] + [ + unary_attr.op_name, + unary_attr.scalars_attr, + unary_attr.algorithm_attr, + ] + counters["inductor"]["mkldnn_unary_fusion_matcher_count"] += 1 + counters["inductor"]["mkldnn_unary_fusion_matcher_nodes"] += len( + match.nodes + ) + return L[computation_op](*computation_args) + + return fn + + def _register_leaky_relu_fusion_lowering(pattern, computation_op, lowp_dtype=None): + @register_lowering_pattern( + pattern, extra_check=_is_single_computation_op(computation_op, lowp_dtype) + ) + def fn(match, *args, **kwargs): + negative_slope = kwargs.get("negative_slope") + if isinstance(negative_slope, ir.TensorBox): + matched = False + else: # inp is a Number + matched = True + if lowp_dtype: + dtype1 = kwargs.get("to_float") + dtype2 = ( + kwargs.get("to_bf16") + if lowp_dtype == torch.bfloat16 + else kwargs.get("to_fp16") + ) + matched = matched and dtype1 == torch.float and dtype2 == lowp_dtype + computation_args = list(args) + counters["inductor"]["mkldnn_unary_fusion_matcher_count"] += 1 + counters["inductor"]["mkldnn_unary_fusion_matcher_nodes"] += len( + match.nodes + ) + if matched: + computation_args = computation_args[:-3] + [ + "leaky_relu", + [negative_slope], + "", + ] + return L[computation_op](*computation_args) + else: + # computation_args += ["none", [], ""] + out = L[computation_op](*computation_args) + if lowp_dtype: + out = L[prims.convert_element_type.default](out, dtype=torch.float) + out = L[aten.where]( + L[aten.gt](out, 0), + out, + L[aten.mul](out, negative_slope), + ) + if lowp_dtype: + out = L[prims.convert_element_type.default](out, dtype=dtype2) # type: ignore[possibly-undefined] + return out + + return fn + + def _register_hardtanh_fusion_lowering(pattern, computation_op, lowp_dtype=None): + @register_lowering_pattern( + pattern, extra_check=_is_single_computation_op(computation_op, lowp_dtype) + ) + def fn(match, *args, **kwargs): + min_value = kwargs.get("min_value") + max_value = kwargs.get("max_value") + if isinstance(min_value, ir.TensorBox) or isinstance( + max_value, ir.TensorBox + ): + matched = False + else: # inp is a Number + assert max_value is not None + matched = min_value <= max_value + if lowp_dtype: + dtype1 = kwargs.get("to_float") + dtype2 = ( + kwargs.get("to_bf16") + if lowp_dtype == torch.bfloat16 + else kwargs.get("to_fp16") + ) + matched = matched and dtype1 == torch.float and dtype2 == lowp_dtype + computation_args = list(args) + counters["inductor"]["mkldnn_unary_fusion_matcher_count"] += 1 + counters["inductor"]["mkldnn_unary_fusion_matcher_nodes"] += len( + match.nodes + ) + if matched: + computation_args = computation_args[:-3] + [ + "hardtanh", + [min_value, max_value], + "", + ] + return L[computation_op](*computation_args) + else: + out = L[computation_op](*computation_args) + if lowp_dtype: + out = L[prims.convert_element_type.default](out, dtype=torch.float) + out = L[aten.clamp_max](L[aten.clamp_min](out, min_value), max_value) + if lowp_dtype: + out = L[prims.convert_element_type.default](out, dtype=dtype2) # type: ignore[possibly-undefined] + return out + + return fn + + _binary_attr = { + aten.add: "add", + ops.add: "add", + aten.sub: "sub", + ops.sub: "sub", + } + + def _is_valid_binary(match, computation_op, binary_op): + binary_nodes = filter_nodes(match.nodes, binary_op) + if len(binary_nodes) < 1: + return False + + def get_meta_value(argument: torch.fx.node.Argument): + # Only torch.fx.Node is expected to have meta. + if isinstance(argument, torch.fx.Node): + return argument.meta.get("val", None) + return None + + if any( + not isinstance(get_meta_value(n.args[0]), torch.Tensor) + or not isinstance(get_meta_value(n.args[1]), torch.Tensor) + for n in binary_nodes + ): + return False + # check alpha is one. + if any( + get_arg_value(n, 2, kwarg_name="alpha") != 1.0 + and get_arg_value(n, 2, kwarg_name="alpha") is not None + for n in binary_nodes + ): + return False + + def _check_input_sizes(n, computation_op): + # Check if the tensor shape of the 'other' node is the same as or + # can be broadcasted to the tensor shape of the computation node. + computation_node = ( + n.args[0] if n.args[1] is match.kwargs["other"] else n.args[1] + ) + assert computation_node.target == computation_op + computation_node_size = get_meta_value(computation_node).size() + if computation_op is mkldnn._linear_pointwise.default: + broadcast_sizes = [] + if len(computation_node_size) >= 2: + broadcast_sizes = [ + torch.Size( + [1 for _ in range(len(computation_node_size) - 1)] + + [computation_node_size[-1]] + ), + ] + else: + assert len(computation_node_size) > 2 + broadcast_sizes = [ + torch.Size( + [computation_node_size[0], computation_node_size[1]] + + [1 for _ in range(len(computation_node_size) - 2)] + ), + torch.Size( + [1, computation_node_size[1]] + + [1 for _ in range(len(computation_node_size) - 2)] + ), + torch.Size([1 for _ in range(len(computation_node_size))]), + ] + return ( + get_meta_value(match.kwargs["other"]).size() + in [ + computation_node_size, + ] + + broadcast_sizes + ) + + if any( + not _check_input_sizes(n, computation_op) + or get_meta_value(n.args[0]).device != get_meta_value(n.args[1]).device + or get_meta_value(n.args[0]).dtype != get_meta_value(n.args[1]).dtype + for n in binary_nodes + ): + return False + # check args[0] and args[1] is not same + if any(n.args[0] == n.args[1] for n in binary_nodes): + return False + return True + + def _is_valid_computation_binary(computation_op, binary_op, other_index=None): + def fn(match): + if not _is_single_computation_op(computation_op)(match): + return False + if not _is_valid_binary(match, computation_op, binary_op): + return False + return True + + return fn + + def _get_remaining_users(extra_input_node, compute_node): + # Think about this pattern: + # ReLU + # / \ + # Conv1 + # / \ + # Conv2 + # \ / + # Add + # Although, the extra input node (ReLU) has more than 1 users: Conv1 and Add. + # The Conv1 is the ancestor node of the current compute node (Conv2). + # This indicates that the buffer of ReLU has completed all its usage, + # So we can safely make changes to it now by doing Conv2->Add inplace fusion. + # Take above case as example: + # * extra_input_node: ReLU + # * compute_node: Conv2 + # _get_remaining_users will return the users of extra_input_node which are not + # ancestor node of compute_node. + def _is_ancestor_node(_current_node, _ancestor_node): + # Check whether _ancestor_node is the ancestor node of _current_node + _node_list = [_current_node] + _visited_nodes = OrderedSet[torch.fx.Node]() + while len(_node_list) != 0: + _current_node = _node_list.pop(0) + if _current_node not in _visited_nodes: + _visited_nodes.add(_current_node) + if _current_node == _ancestor_node: + return True + elif isinstance( + _current_node, torch.fx.Node + ) and _current_node.op not in ["placeholder", "output", "get_attr"]: + for input in _current_node.all_input_nodes: + _node_list.append(input) # noqa: PERF402 + return False + + return [ + user + for user in list(extra_input_node.users) + if not _is_ancestor_node(compute_node, user) + ] + + def _is_valid_computation_binary_inplace(computation_op, binary_op, other_index): + def fn(match): + if not _is_valid_computation_binary(computation_op, binary_op)(match): + return False + binary_nodes = filter_nodes(match.nodes, binary_op) + + def _get_compute_node(_binary_node, _other_index): + assert len(_binary_node.all_input_nodes) == 2, ( + "Binary node should have 2 input nodes." + ) + _compute_index = 1 if (_other_index == 0) else 0 + return _binary_node.args[_compute_index] + + def _other_input_not_inplaceable(_binary_node, _other_index): + _compute_node = _get_compute_node(_binary_node, _other_index) + return ( + len( + _get_remaining_users( + _binary_node.args[_other_index], _compute_node + ) + ) + > 1 + or _binary_node.args[_other_index] == _compute_node.args[0] + ) + + if any(_other_input_not_inplaceable(n, other_index) for n in binary_nodes): + return False + if any( + # pyrefly: ignore [missing-attribute] + n.args[other_index].op in ["placeholder", "output"] + for n in binary_nodes + ): + return False + return True + + return fn + + def _register_binary_unary_fusion_lowering( + pattern, + computation_op, + binary_op, + fusion_op, + unary_attr=None, + ): + @register_lowering_pattern( + pattern, extra_check=_is_valid_computation_binary(computation_op, binary_op) + ) + def fn(match, *args, **kwargs): + other = kwargs.get("other") + assert isinstance(other, ir.TensorBox) + binary_attr = _binary_attr[binary_op] + args_list = list(args) + computation_args = [args_list[0], other] + args_list[1:-3] + [binary_attr] + if len(args_list) > 6: + if unary_attr is not None: + computation_args += [ + 1.0, + unary_attr.op_name, + unary_attr.scalars_attr, + unary_attr.algorithm_attr, + ] + else: + computation_args += [1.0, None, [], None] + counters["inductor"]["mkldnn_conv_binary_unary_fusion_matcher_count"] += 1 + counters["inductor"]["mkldnn_conv_binary_unary_fusion_matcher_nodes"] += ( + len(match.nodes) + ) + return L[fusion_op](*computation_args) + + return fn + + def _can_be_inplace(_other): + return not ( + isinstance(_other.data, ir.BaseView) + or len(_other.get_inputs_that_alias_output()) > 0 + ) + + def _qlinear_binary_can_be_inplace(_other): + if isinstance(_other.data, ir.BaseView): + + def unwrap_buffer(data): + if isinstance(data, ir.StorageBox): + return data.data + return data + + data = _other.data.unwrap_view() + if isinstance(unwrap_buffer(data), ir.CppTemplateBuffer): + # It can be inplaced when _other is the 2D to 3D view of + # a CppTemplateBuffer because if there is a view of CppTemplateBuffer, + # CppTemplateBuffer will not be used directly but the view. + return True + else: + # The case of QLinearPointwiseBinaryPT2E(sum) -> QLinearPointwiseBinaryPT2E(sum) + # is similar to CppTemplateBuffer above. + # The output of previous QLinearPointwiseBinaryPT2E is + # the input x2 of current QLinearPointwiseBinaryPT2E. + # Use V.graph.operations to check if _other is a view of the output + # of previous QLinearPointwiseBinaryPT2E (the inputs[6]). + for op in V.graph.operations: + if ( + isinstance(op, mkldnn_ir.QLinearPointwiseBinaryPT2E) + and unwrap_buffer(data) == op.inputs[6] # type: ignore[attr-defined] + ): + return True + return False + elif len(_other.get_inputs_that_alias_output()) > 0: + return False + else: + return True + + def _register_binary_unary_maybe_inplace_fusion_lowering( + pattern, + computation_op, + binary_op, + inplace_fusion_op, + outplace_fusion_op, + unary_attr=None, + other_index=None, + ): + @register_lowering_pattern( + pattern, + extra_check=_is_valid_computation_binary_inplace( + computation_op, binary_op, other_index + ), + ) + def fn(match, *args, **kwargs): + other = kwargs.get("other") + assert isinstance(other, ir.TensorBox) + binary_attr = _binary_attr[binary_op] + args_list = list(args) + computation_args = [args_list[0], other] + args_list[1:-3] + [binary_attr] + if len(args_list) > 6: + if unary_attr is not None: + computation_args += [ + 1.0, + unary_attr.op_name, + unary_attr.scalars_attr, + unary_attr.algorithm_attr, + ] + else: + computation_args += [1.0, None, [], None] + counters["inductor"]["mkldnn_conv_binary_unary_fusion_matcher_count"] += 1 + counters["inductor"]["mkldnn_conv_binary_unary_fusion_matcher_nodes"] += ( + len(match.nodes) + ) + # Make sure the other is not an alias or mutation(fx side doesn't has such info). + other.realize() + if not _can_be_inplace(other) or other.data.shape != list( + match.nodes[0].meta["val"].size() + ): + return L[outplace_fusion_op](*computation_args) + return L[inplace_fusion_op](*computation_args) + + return fn + + computation_ops = [ + mkldnn._convolution_pointwise.default, + mkldnn._linear_pointwise.default, + mkldnn._convolution_transpose_pointwise.default, + ] + + class UnaryAttr: + def __init__( + self, op_name: str, scalars_attr=None, algorithm_attr=None + ) -> None: + self.op_name = op_name + self.scalars_attr = scalars_attr if scalars_attr else [] + self.algorithm_attr = algorithm_attr if algorithm_attr else "" + + def _register_unary_fusion(): + computation_call_fns = [_conv_call, _linear_call, _conv_transpose_call] + + def _unary_fusion_patterns(lowp_dtype): + replacement_unary_fusion_patterns = { + UnaryAttr("gelu", algorithm_attr="tanh"): [ + _unary_fusion_pattern(_gelu_fusion_2, call_fn, 4, lowp_dtype) + for call_fn in computation_call_fns + ], + UnaryAttr("gelu", algorithm_attr="none"): [ + _unary_fusion_pattern(_gelu_fusion_1, call_fn, 2, lowp_dtype) + for call_fn in computation_call_fns + ], + UnaryAttr("hardswish"): [ + _unary_fusion_pattern(_hardswish_fusion, call_fn, 2, lowp_dtype) + for call_fn in computation_call_fns + ], + UnaryAttr("hardsigmoid"): [ + _unary_fusion_pattern(_hardsigmoid_fusion, call_fn, 1, lowp_dtype) + for call_fn in computation_call_fns + ], + UnaryAttr("swish"): [ + _unary_fusion_pattern(_silu_fusion, call_fn, 2, lowp_dtype) + for call_fn in computation_call_fns + ], + } + if not lowp_dtype: + call_user1 = [call_fn(users=1) for call_fn in computation_call_fns] + replacement_unary_fusion_patterns.update( + { + UnaryAttr("relu"): [ + _combined_fusion(u, aten.relu) for u in call_user1 + ], + UnaryAttr("sigmoid"): [ + _combined_fusion(u, aten.sigmoid) for u in call_user1 + ], + UnaryAttr("tanh"): [ + _combined_fusion(u, aten.tanh) for u in call_user1 + ], + } + ) + + return replacement_unary_fusion_patterns + + for lowp_dtype in [torch.bfloat16, torch.float16, None]: + replace_patterns = _unary_fusion_patterns(lowp_dtype) + for unary_attr, patterns in replace_patterns.items(): + _register_unary_fusion_lowering( + patterns[0], unary_attr, computation_ops[0], lowp_dtype + ) + _register_unary_fusion_lowering( + patterns[1], unary_attr, computation_ops[1], lowp_dtype + ) + _register_unary_fusion_lowering( + patterns[2], unary_attr, computation_ops[2], lowp_dtype + ) + _leaky_relu_patterns = [ + _unary_fusion_pattern(_leaky_relu_fusion, call_fn, 3, lowp_dtype) + for call_fn in computation_call_fns + ] + for pattern, computation_op in zip(_leaky_relu_patterns, computation_ops): + _register_leaky_relu_fusion_lowering( + pattern, computation_op, lowp_dtype + ) + hardtanh_patterns = [ + _unary_fusion_pattern(_hardtanh_fusion, call_fn, 1, lowp_dtype) + for call_fn in computation_call_fns + ] + for pattern, computation_op in zip(hardtanh_patterns, computation_ops): + _register_hardtanh_fusion_lowering(pattern, computation_op, lowp_dtype) + + def _register_inplace_fusion(): + binary_ops = [aten.add, ops.add] + inplace_fusion_op = mkldnn._convolution_pointwise_.binary + outplace_fusion_op = mkldnn._convolution_pointwise.binary + conv_call = _conv_call(users=1) + conv_op = computation_ops[0] + for binary_op in binary_ops: + binary_v1 = _binary_fusion_v1(conv_call, binary_op) + binary_unary_v1 = _combined_fusion(binary_v1, aten.relu) + _register_binary_unary_maybe_inplace_fusion_lowering( + binary_unary_v1, + conv_op, + binary_op, + inplace_fusion_op, + outplace_fusion_op, + other_index=0, + unary_attr=UnaryAttr("relu"), + ) + _register_binary_unary_maybe_inplace_fusion_lowering( + binary_v1, + conv_op, + binary_op, + inplace_fusion_op, + outplace_fusion_op, + other_index=0, + ) + binary_v2 = _binary_fusion_v2(conv_call, binary_op) + binary_unary_v2 = _combined_fusion(binary_v2, aten.relu) + _register_binary_unary_maybe_inplace_fusion_lowering( + binary_unary_v2, + conv_op, + binary_op, + inplace_fusion_op, + outplace_fusion_op, + other_index=1, + unary_attr=UnaryAttr("relu"), + ) + _register_binary_unary_maybe_inplace_fusion_lowering( + binary_v2, + conv_op, + binary_op, + inplace_fusion_op, + outplace_fusion_op, + other_index=1, + ) + + def _register_binary_fusion(): + binary_ops = [aten.add, ops.add, aten.sub, ops.sub] + fusion_ops = [ + mkldnn._convolution_pointwise.binary, + mkldnn._linear_pointwise.binary, + ] + _computation_user_1 = [_conv_call(users=1), _linear_call(users=1)] + for computation_call, computation_op, fusion_op in zip( + _computation_user_1, computation_ops[:-1], fusion_ops + ): + for binary_op in binary_ops: + pattern = _binary_fusion_v2(computation_call, binary_op) + _register_binary_unary_fusion_lowering( + pattern, computation_op, binary_op, fusion_op + ) + + for binary_op in [aten.add, ops.add]: + pattern = _binary_fusion_v1(computation_call, binary_op) + _register_binary_unary_fusion_lowering( + pattern, computation_op, binary_op, fusion_op + ) + + def _register_binary_unary_fusion(): + binary_ops = [aten.add, ops.add, aten.sub, ops.sub] + fusion_ops = [mkldnn._convolution_pointwise.binary] + _computation_user_1 = [_conv_call(users=1)] + for computation_call, computation_op, fusion_op in zip( + _computation_user_1, computation_ops[:-1], fusion_ops + ): + for binary_op in binary_ops: + pattern_v1 = _combined_fusion( + _binary_fusion_v2(computation_call, binary_op), aten.relu + ) + _register_binary_unary_fusion_lowering( + pattern_v1, + computation_op, + binary_op, + fusion_op, + unary_attr=UnaryAttr("relu"), + ) + for binary_op in [aten.add, ops.add]: + pattern_v2 = _combined_fusion( + _binary_fusion_v1(computation_call, binary_op), aten.relu + ) + _register_binary_unary_fusion_lowering( + pattern_v2, + computation_op, + binary_op, + fusion_op, + unary_attr=UnaryAttr("relu"), + ) + + def _recover_linear(): + # convert reshape+linear+reshape to a single linear for applying fusion path. + # concat_linear (pass_number=0) -> mkldnn_linear_pack (pass_number=1) -> _recover_linear(pass_number=2) + @register_freezing_graph_pattern( + CallFunction( + aten.reshape.default, + CallFunction( + mkldnn._linear_pointwise.default, + CallFunction( + aten.reshape.default, + Arg(), + KeywordArg("reshape_1"), + _users=MULTIPLE, + ), + Arg(), + Arg(), + Arg(), + Arg(), + Arg(), + ), + KeywordArg("reshape_2"), + ), + pass_number=2, + ) + def reshape_linear_reshape_pattern(match, *args, **kwargs): + def get_val(val): + return val if isinstance(val, int) else val.meta.get("val") + + reshape_1 = kwargs.get("reshape_1") + reshape_2 = kwargs.get("reshape_2") + assert isinstance(reshape_1, list) + assert isinstance(reshape_2, list) + assert len(reshape_1) == 2 + + graph = match.graph + reshape_2_node = match.output_node() + linear_input_node = reshape_2_node.args[0].args[0].args[0] + # check linear's input's shape[:-1] == reshape_2[:-1] + # and check product(reshape_2[:-1]) == reshape_1[0] + can_remove_reshape = linear_input_node.meta.get("val").shape[ + :-1 + ] == torch.Size([get_val(val) for val in reshape_2[:-1]]) + can_remove_reshape = can_remove_reshape and ( + reduce( + operator.mul, + [get_val(val) for val in reshape_2[:-1]], + ) + == get_val(reshape_1[0]) + ) + + if can_remove_reshape: + repl = graph.call_function(mkldnn._linear_pointwise.default, args) + repl.meta.update(reshape_2_node.meta) + reshape_2_node.replace_all_uses_with(repl) + old_linear_node = reshape_2_node.args[0] + reshape_1_node = old_linear_node.args[0] + graph.erase_node(reshape_2_node) + graph.erase_node(old_linear_node) + if len(reshape_1_node.users) == 0: + graph.erase_node(reshape_1_node) + counters["inductor"]["mkldnn_reshape_linear_reshape_matcher_count"] += 1 + counters["inductor"]["mkldnn_reshape_linear_reshape_matcher_nodes"] += len( + match.nodes + ) + + def is_linear_add_bias(match): + add_node = match.output_node() + linear_node = add_node.args[0] + device_type = add_node.meta.get("val").device.type + mkldnn_device_op = _get_mkldnn_device_op(device_type) + transpose_weight_node = mkldnn_device_op.get_linear_transpose_weight( + linear_node.args[1] + ) + weight_meta = transpose_weight_node.args[0].meta.get("val") + bias_node = add_node.args[1] + if isinstance(bias_node, int): + # we only folding bias if it is a constant + return False + bias_meta = add_node.args[1].meta.get("val") + if weight_meta is None or bias_meta is None: + return False + + if bias_meta.dtype != weight_meta.dtype: + return False + return ( + linear_node.args[2] is None + and bias_meta.dim() == 1 + and bias_meta.size(0) == weight_meta.size(1) + ) + + # convert linear+bias to a single linear for applying fusion path. + @register_freezing_graph_pattern( + CallFunction( + aten.add.Tensor, + CallFunction(mkldnn._linear_pointwise.default, *_linear_args), + Arg(), + ), + pass_number=2, + extra_check=is_linear_add_bias, + ) + def linear_bias_pattern(match, *args): + graph = match.graph + add_node = match.output_node() + linear_node = add_node.args[0] + new_args = list(linear_node.args) + new_args[2] = add_node.args[1] + repl = graph.call_function( + mkldnn._linear_pointwise.default, tuple(new_args) + ) + repl.meta.update(add_node.meta) + add_node.replace_all_uses_with(repl) + match.erase_nodes() + counters["inductor"]["mkldnn_linear_bias_matcher_count"] += 1 + counters["inductor"]["mkldnn_linear_bias_matcher_nodes"] += len(match.nodes) + + def _is_packable_mkldnn_rnn_layer(match): + lstm_node = match.output_node() + POS_WEIGHTS = [1, 2] + POS_INPUTS = [0, 5, 6] + POS_ARGS = POS_WEIGHTS + POS_INPUTS + # Weights should be Constant + if any( + lstm_node.args[POS_WEIGHT].op != "get_attr" for POS_WEIGHT in POS_WEIGHTS + ): + return False + + # Meta info for weights and inputs should be available + if any(lstm_node.args[POS_ARG].meta.get("val") is None for POS_ARG in POS_ARGS): + return False + + # Check device + if any( + lstm_node.args[POS_ARG].meta.get("val").device.type != "cpu" + for POS_ARG in POS_ARGS + ): + return False + + # Check dtype + if any( + lstm_node.args[POS_ARG].meta.get("val").dtype == torch.bfloat16 + and not is_mkldnn_bf16_supported("cpu") + for POS_ARG in POS_ARGS + ): + return False + if any( + lstm_node.args[POS_ARG].meta.get("val").dtype == torch.float16 + and not is_mkldnn_fp16_supported("cpu") + for POS_ARG in POS_ARGS + ): + return False + + return True + + def _is_packable_convolution(match): + """ + Check if the node is supported for MKLDNN convolution. + """ + conv_node = match.output_node() + device_type = conv_node.meta.get("val").device.type + # The operator 'mkldnn::_convolution_transpose_pointwise' is not currently implemented for the XPU device. + if match.kwargs["is_transposed"] and device_type == "xpu": + return False + + input_meta_value = conv_node.args[0].meta.get("val") + weight_meta_value = conv_node.args[1].meta.get("val") + if input_meta_value is None or weight_meta_value is None: + return False + input_size = input_meta_value.shape + if conv_node.args[1].op != "get_attr": + return False + for meta_value in [input_meta_value, weight_meta_value]: + if ( + meta_value is None + or meta_value.device.type not in SUPPORTED_MKLDNN_DEVICES + or (meta_value.dim() != 4 and meta_value.dim() != 5) + ): + return False + + if ( + input_meta_value.dtype == torch.bfloat16 + or weight_meta_value.dtype == torch.bfloat16 + ): + if not is_mkldnn_bf16_supported(device_type): + return False + if ( + input_meta_value.dtype == torch.float16 + or weight_meta_value.dtype == torch.float16 + ): + if not is_mkldnn_fp16_supported(device_type): + return False + is_transposed = conv_node.args[-3] + if is_transposed: + # TODO: Support dynamic shape case for MKLDNN conv transpose. + if has_free_symbols(input_size): + return False + groups = conv_node.args[-1] + in_channels = weight_meta_value.size(0) + # doesn't support group_depthwise_conv_transpose. + if groups > 1 and groups == in_channels: + return False + # Port from: aten/src/ATen/native/Convolution.cpp:is_output_padding_big + output_paddings = conv_node.args[-2] + strides = conv_node.args[3] + if any( + output_padding >= stride + for output_padding, stride in zip(output_paddings, strides) + ): + return False + return True + + def _is_packable_linear(match): + """ + Check if the node is supported for MKLDNN linear. + """ + + def is_const_or_cat_by_const(weight): + if weight.op == "get_attr": + return True + if weight.target != aten.cat.default: + return False + return all(arg.op == "get_attr" for arg in weight.args[0]) + + linear_node = match.output_node() + # mkldnn linear only supports beta=1or0 and alpha=1 + if linear_node.target is aten.addmm.default: + alpha = linear_node.kwargs.get("alpha", 1.0) + beta = linear_node.kwargs.get("beta", 1.0) + if (beta != 0.0 and beta != 1.0) or alpha != 1.0: + return False + # weight_idx is 1 for aten.mm and is 2 for aten.addmm + weight_idx = 2 if linear_node.target is aten.addmm.default else 1 + if not is_const_or_cat_by_const(linear_node.args[weight_idx]): + return False + input_meta_value = linear_node.args[weight_idx - 1].meta.get("val") + weight_meta_value = linear_node.args[weight_idx].meta.get("val") + if input_meta_value is None or weight_meta_value is None: + return False + if ( + input_meta_value.dtype == torch.float64 + or weight_meta_value.dtype == torch.float64 + ): + return False + is_lp_weight = weight_meta_value.dtype in ( + torch.bfloat16, + torch.float16, + ) + reduced_f32_matmul_enabled = torch.backends.mkldnn.matmul.fp32_precision in [ # type: ignore[attr-defined] + "bf16", + "tf32", + ] + use_reduced_f32_for_fp32_weight = ( + reduced_f32_matmul_enabled and weight_meta_value.dtype == torch.float32 + ) + compute_with_lp = is_lp_weight or use_reduced_f32_for_fp32_weight + # on x86, for fp32, mkl should be enabled. + # on aarch64, use mkldnn op for fp32 as well if acl is enabled + if ( + not compute_with_lp + and not mkldnn._is_mkldnn_acl_supported() + and not torch._C.has_mkl + ): + return False + for meta_value in [input_meta_value, weight_meta_value]: + if ( + meta_value is None + or meta_value.device.type != "cpu" + or meta_value.dim() != 2 + ): + return False + if weight_idx == 2: + bias_meta_value = linear_node.args[0].meta.get("val") + if ( + bias_meta_value is None + or meta_value.device.type != "cpu" + or bias_meta_value.dim() != 1 + or bias_meta_value.size(0) != weight_meta_value.size(1) + ): + return False + + device_type = input_meta_value.device.type + if ( + input_meta_value.dtype == torch.bfloat16 + or weight_meta_value.dtype == torch.bfloat16 + ): + if not is_mkldnn_bf16_supported(device_type): + return False + if ( + input_meta_value.dtype == torch.float16 + or weight_meta_value.dtype == torch.float16 + ): + if not is_mkldnn_fp16_supported(device_type): + return False + return True + + _aten_conv_args = ( + Arg(), + Arg(), + Arg(), + Arg(), + Arg(), + Arg(), + KeywordArg("is_transposed"), + Arg(), + Arg(), + ) + + _aten_mkldnn_rnn_layer_args = ( + Arg(), # input + Arg(), # weight0 + Arg(), # weight1 + Arg(), # weight2 + Arg(), # weight3 + Arg(), # hx_ + Arg(), # cx_ + KeywordArg("reverse"), # reverse + Arg(), # batch_sizes + Arg(), # mode + Arg(), # hidden_size + Arg(), # num_layers + Arg(), # has_biases + Arg(), # bidirectional + Arg(), # batch_first + Arg(), # train + ) + + def _register_weight_pack_pass(): + @register_freezing_graph_pattern( + CallFunction(aten.convolution.default, *_aten_conv_args), + extra_check=_is_packable_convolution, + ) + def convolution(match, *args, **kwargs): + is_transposed = kwargs.get("is_transposed") + assert isinstance(is_transposed, bool) + graph = match.graph + conv_node = match.output_node() + device_type = conv_node.args[0].meta.get("val").device.type + mkldnn_device_op = _get_mkldnn_device_op(device_type) + input_size = conv_node.args[0].meta.get("val").shape + with graph.inserting_before(conv_node): + constant_args = [args[4], args[3], args[5], args[-1]] + packed_conv_op = mkldnn._convolution_pointwise.default + if is_transposed: + constant_args.insert(1, args[-2]) # output_padding + packed_conv_op = mkldnn._convolution_transpose_pointwise.default + + if not has_free_symbols(input_size): + packed_weight_node = mkldnn_device_op.pack_conv_weight( + graph, + is_transposed, + args[1], + constant_args, + input_size, + ) + else: + assert not is_transposed + # For dynamic shape case, we need to pack weight in runtime. + packed_weight_node = args[1] + + packed_conv_inputs = ( + (args[0], packed_weight_node, args[2]) + + tuple(constant_args) + + ("none", [], "") + ) + packed_conv_node = graph.create_node( + "call_function", packed_conv_op, tuple(packed_conv_inputs) + ) + conv_node.replace_all_uses_with(packed_conv_node) + packed_conv_node.meta.update(conv_node.meta) + graph.erase_node(conv_node) + counters["inductor"]["mkldnn_conv_weight_pack_matcher_count"] += 1 + counters["inductor"]["mkldnn_conv_weight_pack_matcher_nodes"] += len( + match.nodes + ) + + @register_freezing_graph_pattern( + CallFunction(aten.mkldnn_rnn_layer.default, *_aten_mkldnn_rnn_layer_args), + extra_check=_is_packable_mkldnn_rnn_layer, + ) + def mkldnn_rnn_layer(match, *args, **kwargs): + def get_item(graph, node, index): + return graph.call_function(operator.getitem, (node, index)) + + graph = match.graph + lstm_node = match.output_node() + weight0, weight1 = args[1:3] + reverse = kwargs.get("reverse") + packed_lstm_op = aten.mkldnn_rnn_layer.default + hidden_size = args[9] + has_biases = args[11] + batch_first = args[13] + with graph.inserting_before(lstm_node): + packed_weight_op = mkldnn._reorder_mkldnn_rnn_layer_weight.default + packed_weight_inputs = ( + weight0, + weight1, + hidden_size, + reverse, + has_biases, + batch_first, + ) + packed_weight_node = graph.create_node( + "call_function", packed_weight_op, packed_weight_inputs, {}, "name" + ) + packed_weight_items = [ + get_item(graph, packed_weight_node, i) for i in range(2) + ] + pack_lstm_inputs = ( + args[0], + *packed_weight_items, + args[3], + args[4], + args[5], + args[6], + reverse, + *args[7:], + ) + + packed_lstm_node = graph.create_node( + "call_function", packed_lstm_op, args=pack_lstm_inputs + ) + lstm_node.replace_all_uses_with(packed_lstm_node) + packed_lstm_node.meta.update(lstm_node.meta) + graph.erase_node(lstm_node) + counters["inductor"]["mkldnn_rnn_weight_pack_matcher_count"] += 1 + counters["inductor"]["mkldnn_rnn_weight_pack_matcher_nodes"] += len( + match.nodes + ) + + @register_freezing_graph_pattern( + CallFunction( + aten.addmm.default, + Arg(), + Arg(), + Arg(), + beta=KeywordArg("beta"), + alpha=KeywordArg("alpha"), + ), + extra_check=_is_packable_linear, + pass_number=1, + ) + @register_freezing_graph_pattern( + CallFunction(aten.mm.default, Arg(), Arg()), + extra_check=_is_packable_linear, + pass_number=1, + ) + def linear(match, *args, **kwargs): + graph = match.graph + linear_node = match.output_node() + input = args[0] if linear_node.target is aten.mm.default else args[1] + bias = ( + None + if linear_node.target is aten.mm.default + or ( + linear_node.target is aten.addmm.default + and linear_node.kwargs.get("beta", 1.0) == 0.0 + ) + else args[0] + ) + weight = args[1] if linear_node.target is aten.mm.default else args[2] + device_type = input.meta.get("val").device.type + mkldnn_device_op = _get_mkldnn_device_op(device_type) + with graph.inserting_before(linear_node): + transpose_weight_node = graph.create_node( + "call_function", aten.permute.default, (weight, (1, 0)) + ) + weight_dtype = weight.meta.get("val").dtype + is_lp_weight = weight_dtype in ( + torch.bfloat16, + torch.float16, + ) + reduced_f32_matmul_enabled = ( + torch.backends.mkldnn.matmul.fp32_precision in ["bf16", "tf32"] # type: ignore[attr-defined] + ) + use_reduced_f32_for_fp32_weight = ( + reduced_f32_matmul_enabled and weight_dtype == torch.float32 + ) + compute_with_lp = is_lp_weight or use_reduced_f32_for_fp32_weight + batch_size = input.meta.get("val").shape[0] + packed_weight_node = mkldnn_device_op.pack_linear_weight( + graph, compute_with_lp, transpose_weight_node, batch_size + ) + packed_linear_node = mkldnn_device_op.pack_linear( + graph, compute_with_lp, batch_size, input, packed_weight_node, bias + ) + + linear_node.replace_all_uses_with(packed_linear_node) + packed_linear_node.meta.update(linear_node.meta) + graph.erase_node(linear_node) + counters["inductor"]["mkldnn_linear_weight_pack_matcher_count"] += 1 + counters["inductor"]["mkldnn_linear_weight_pack_matcher_nodes"] += len( + match.nodes + ) + + def _eliminate_duplicate_packed_nodes(gm): + """ + Combine packed weight nodes with the same inputs to reduce memory usage. + for example: + class Model(nn.Module): + def __init__(self) -> None: + super().__init__() + self.linear = nn.Linear(32, 32, bias=True) + + def forward(self, x): + return self.linear(self.linear(x)) + + the above's packed weight nodes are duplicate if two linear calls have same input size. + """ + if not (torch.backends.mkldnn.enabled and torch.backends.mkldnn.is_available()): + return gm + + packed_weight_ops = [ + torch._C._nn.mkldnn_reorder_conv2d_weight, + torch._C._nn.mkldnn_reorder_conv3d_weight, + mkldnn._reorder_convolution_transpose_weight, + mkldnn._reorder_linear_weight, + mkldnn._reorder_mkldnn_rnn_layer_weight, + ] + if torch._C.has_mkl: + packed_weight_ops.append(torch.ops.mkl._mkl_reorder_linear_weight) + + for node in gm.graph.nodes: + if node.target in packed_weight_ops and len(node.args[0].users) > 1: + for user_node in list(node.args[0].users.keys()): + if ( + user_node.target == node.target + and user_node != node + and user_node.args == node.args + ): + user_node.replace_all_uses_with(node) + gm.graph.erase_node(user_node) + + @functools.cache + def _mkldnn_fusion_init(): + # TODO: aarch64: enable op fusion for acl once it supports fused operators. Disabling it for now. + # Otherwise even the matmul or innerproduct can not be accelerated with acl + if ( + not torch.backends.mkldnn.enabled + or not torch.backends.mkldnn.is_available() + ): + return + + if not torch.ops.mkldnn._is_mkldnn_acl_supported(): + _register_unary_fusion() + _register_inplace_fusion() + _register_binary_unary_fusion() + _register_binary_fusion() + _register_quantization_lowerings() + + _register_woq_lowerings() + + @functools.cache + def _mkldnn_weight_pack_init(): + if torch.backends.mkldnn.enabled and torch.backends.mkldnn.is_available(): + _register_weight_pack_pass() + _recover_linear() + _register_quantization_weight_pack_pass() + _register_int8_woq_concat_linear_pattern() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/node_runtime_estimation.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/node_runtime_estimation.py new file mode 100644 index 0000000000000000000000000000000000000000..2e3e3ebf084ad7b785450a453c483ad4ae01895b --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/node_runtime_estimation.py @@ -0,0 +1,325 @@ +""" +Collective runtime estimation using CUDA events and power-of-2 rounding. +""" + +from __future__ import annotations + +import itertools +from functools import lru_cache +from typing import Any, Optional + +import torch +import torch.fx as fx +from torch._inductor.utils import clear_on_fresh_cache, tabulate_2d +from torch._logging import getArtifactLogger, trace_structured +from torch.fx.operator_schemas import normalize_function + + +# Setup logger for artifact logging +log = getArtifactLogger(__name__, "node_runtime_estimation") + + +# TODO: Consider using a distributed-aware cache or rank-local disk cache +# not using local cache because different ranks might write to it concurrently. +# solvable in future, potentially with workflow to seed cache +@clear_on_fresh_cache +@lru_cache +def _get_collective_cache() -> dict[str, float]: + """Get process-local cache for collective benchmarks.""" + return {} + + +def get_cached_runtime(key: str) -> Optional[float]: + """Get cached runtime from process-local cache.""" + return _get_collective_cache().get(key) + + +def set_cached_runtime(key: str, value: float) -> None: + """Set cached runtime in process-local cache.""" + _get_collective_cache()[key] = value + + +def get_hint(x: int | torch.SymInt) -> Optional[int]: + if isinstance(x, int): + return x + assert isinstance(x, torch.SymInt) + return x.node.hint if x.node.has_hint() else None + + +def can_benchmark_collective() -> bool: + """Check if we can benchmark collectives (not fake process group).""" + import torch.distributed as c10d + + if not c10d.is_initialized(): + return False + + pg = c10d.distributed_c10d._get_default_group() + if torch.distributed.distributed_c10d.get_backend(pg) == "fake": + return False + + return True + + +def _median(lst): + assert len(lst) > 0 + return torch.median(torch.tensor(lst)).item() + + +def _benchmark_collective_with_cuda_events_impl( + n: torch.fx.Node, + args: tuple[Any, ...], + kwargs: dict[str, Any], + nruns: int, +) -> float | None: + """ + Core benchmarking logic using CUDA events and barriers. + Returns runtime in ms or None on failure. + """ + from torch._dynamo.testing import rand_strided + + # Convert FakeTensors to real tensors before benchmarking + def to_real(t: torch.Tensor) -> torch.Tensor: + shape = [get_hint(dim) for dim in t.shape] + stride = [get_hint(s) for s in t.stride()] + + if any(s is None for s in itertools.chain(shape, stride)): + # This should not happen, as can_benhcmark_collective checks for unbacked + raise ValueError("Cannot convert tensor with symbolic dimensions") + + return rand_strided(shape, stride, device=t.device, dtype=t.dtype) # type: ignore[arg-type] + + args, kwargs = torch.utils._pytree.tree_map_only( + torch.Tensor, + to_real, + (args, kwargs), + ) + + # Warmup: call collective once and wait + torch.cuda.synchronize() + result = n.target(*args, **kwargs) # type: ignore[operator] + torch.ops._c10d_functional.wait_tensor(result) + torch.cuda.synchronize() + + # Benchmark with CUDA events + comm_times = [] + for _ in range(nruns): + start_evt = torch.cuda.Event(enable_timing=True) + end_evt = torch.cuda.Event(enable_timing=True) + + start_evt.record() + result = n.target(*args, **kwargs) # type: ignore[operator] + torch.ops._c10d_functional.wait_tensor(result) + end_evt.record() + end_evt.synchronize() + + comm_times.append(start_evt.elapsed_time(end_evt)) + + return _median(comm_times) + + +def benchmark_collective_with_cuda_events( + n: torch.fx.Node, + nruns: int = 2, +) -> tuple[float | None, str]: + """ + Benchmark collective with CUDA events. Returns (runtime_ms, cache_key) or (None, "") on failure. + """ + # context manager not allowed with profiler. + with torch.utils._python_dispatch._disable_current_modes(): + return benchmark_collective_with_cuda_events_impl(n, nruns) + + +def benchmark_collective_with_cuda_events_impl( + n: torch.fx.Node, + nruns: int = 3, +) -> tuple[float | None, str]: + """ + Benchmark collective with CUDA events. Returns (runtime_ms, cache_key) or (None, "") on failure. + """ + from torch._inductor import fx_utils + from torch.distributed.distributed_c10d import _get_group_size_by_name + + # Early check: can we actually run collectives? + if not can_benchmark_collective(): + return None, "" + + success, args, kwargs = fx_utils.get_fake_args_kwargs(n) + + opt_args_kwargs = normalize_function( + n.target, # type: ignore[arg-type] + args=n.args, + kwargs=n.kwargs, + normalize_to_only_use_kwargs=True, + ) + assert opt_args_kwargs is not None + group_name = opt_args_kwargs[1]["group_name"] + group_size = _get_group_size_by_name(group_name) + + if not success: + return None, "" + + # Extract actual input size in BYTES (first tensor argument) + actual_bytes: Optional[int] = None + + def extract_tensor_info(t: torch.Tensor) -> torch.Tensor: + nonlocal actual_bytes + if actual_bytes is None: + shape = [get_hint(dim) for dim in t.shape] + if any(s is None for s in shape): + return t + + total_elems = 1 + for dim in shape: + assert dim is not None + total_elems *= dim + + actual_bytes = total_elems * t.dtype.itemsize + else: + raise RuntimeError(f"should only be one input tensor to collective {n}") + return t + + torch.utils._pytree.tree_map_only(torch.Tensor, extract_tensor_info, (args, kwargs)) + + if actual_bytes is None: + return None, "" + + # Cache key by BYTES (dtype-agnostic) + key = f"{n.target}: ({group_size} group size, {actual_bytes} bytes)" + + # Check cache + if (cached := get_cached_runtime(key)) is not None: + return cached, key + + # Benchmark using CUDA events with actual args/kwargs + runtime = _benchmark_collective_with_cuda_events_impl(n, args, kwargs, nruns) + + if runtime is None: + return None, key + + # Cache the result + set_cached_runtime(key, runtime) + return runtime, key + + +def _log_compute_estimations( + compute_nodes: list[fx.Node], + benchmarked_estimations: list[float], + analytical_estimations: list[float], +) -> None: + """Log compute node runtime estimations comparing benchmarked vs analytical.""" + import torch.utils._pytree as pytree + from torch._inductor.fx_utils import count_flops_fx + from torch.utils._dtype_abbrs import dtype_abbrs + + def _node_summary(n: fx.Node) -> str: + ret = str(n) + for arg in pytree.arg_tree_leaves(n.args, n.kwargs): + if not isinstance(arg, torch.fx.Node): + continue + if "val" in arg.meta: + t = arg.meta["val"] + ret += f" {dtype_abbrs[t.dtype]}{tuple(t.shape)}" + return ret + + headers = [ + "Node", + "Benchmarked Est(us)", + "Analytical Est(us)", + "Diff(%)", + "Diff(us)", + "Flops", + ] + + rows = [ + [ + _node_summary(node)[:120], + est_b * 1e3, + est_a * 1e3, + (est_a / est_b) if est_b > 0 else 0, + (est_a - est_b) * 1e3, + count_flops_fx(node), + ] + for node, est_b, est_a in zip( + compute_nodes, benchmarked_estimations, analytical_estimations + ) + ] + + log_str = tabulate_2d(rows, headers) + + trace_structured( + "artifact", + metadata_fn=lambda: { + "name": "fx_compute_nodes_runtime_estimation", + "encoding": "string", + }, + payload_fn=lambda: log_str, + ) + + +def _log_collective_benchmarks( + collective_nodes: list[fx.Node], + collective_keys: list[str], + benchmarked_medians: list[float], + world_size: int, +) -> None: + """Log collective benchmarks with analytical comparisons for tlparse.""" + headers = [ + "Collective Key", + "Benchmarked(ms)", + "NCCL Est(ms)", + "Inductor Est(ms)", + "NCCL Diff(%)", + "Inductor Diff(%)", + ] + + rows = [] + collective_benchmarks = {} + for key, benchmarked_ms, coll_node in zip( + collective_keys, benchmarked_medians, collective_nodes + ): + # NCCL estimator (deterministic, no need to align) + nccl_ms = ( + torch._inductor.comm_analysis.estimate_nccl_collective_runtime_from_fx_node( + coll_node, None, use_nccl_estimator=True + ) + ) + + # Inductor analytical (deterministic, no need to align) + inductor_ms = ( + torch._inductor.comm_analysis.estimate_nccl_collective_runtime_from_fx_node( + coll_node, None, use_nccl_estimator=False + ) + ) + + collective_benchmarks[key] = { + "benchmarked_ms": benchmarked_ms, + "analytical_nccl_ms": nccl_ms, + "analytical_inductor_ms": inductor_ms, + } + + # Compute percentage differences + nccl_diff_pct = (nccl_ms / benchmarked_ms) if benchmarked_ms > 0 else 0 + inductor_diff_pct = (inductor_ms / benchmarked_ms) if benchmarked_ms > 0 else 0 + + rows.append( + [ + key[:80], + f"{benchmarked_ms:.4f}", + f"{nccl_ms:.4f}", + f"{inductor_ms:.4f}", + f"{nccl_diff_pct:.2f}", + f"{inductor_diff_pct:.2f}", + ] + ) + + log_str = f"World size: {world_size}\n" + log_str += tabulate_2d(rows, headers) + + trace_structured( + "artifact", + metadata_fn=lambda: { + "name": "fx_collectives_node_runtime_estimation", + "encoding": "string", + }, + payload_fn=lambda: log_str, + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/numeric_utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/numeric_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..d1db82f21f7ec6a37e1f260b02d2fcd77622c058 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/numeric_utils.py @@ -0,0 +1,213 @@ +# mypy: allow-untyped-defs +import gc +import logging +import os +import random +import traceback + +import numpy + +import torch +import torch.optim as optim +from torch.utils._ordered_set import OrderedSet + +from .. import config + + +logger: logging.Logger = logging.getLogger(__name__) + +MAIN_RANDOM_SEED = 1337 + +# Set the CUBLAS_WORKSPACE_CONFIG environment variable +os.environ["CUBLAS_WORKSPACE_CONFIG"] = ":4096:8" + + +# If the two forward functions involve any non-deterministic operations, +# such as certain types of parallelism or asynchronous execution, +# this can also lead to different outputs. +def set_deterministic() -> None: + """Make torch manual seed deterministic.""" + + torch.manual_seed(MAIN_RANDOM_SEED) + random.seed(MAIN_RANDOM_SEED) + numpy.random.seed(MAIN_RANDOM_SEED) + torch.use_deterministic_algorithms(True) + + +def clean_memory() -> None: + """Clean memory to avoid OOM.""" + gc.collect() + torch.cuda.empty_cache() + + +# We compare the numerical results before and after pre/post grad fx passes +# transformation to make sure the numerical results are the same. +def compare_dict_tensors(dict_base, dict_control, precision): + if len(OrderedSet(dict_base.keys())) != len(OrderedSet(dict_control.keys())): + logger.warning("Mismatch keys found before and after pre/post grad fx passes.") + logger.debug("keys before pre/post grad fx passes %s", dict_base.keys()) + logger.debug("keys after pre/post grad fx passes %s", dict_control.keys()) + return False + is_allclose = True + for key in dict_base: + if key not in dict_control: + logger.warning( + "Mismatch parameter name %s does not exist after pre/post grad fx passes", + key, + ) + # Some parameters have `None`, and not every param has a valid .grad field, we skip them + if dict_base[key] is None or dict_control[key] is None: + continue + if not torch.allclose( + dict_base[key], + dict_control[key], + rtol=precision, + atol=precision, + equal_nan=True, + ): + logger.warning( + "Mismatch parameter values found before and after pre/post grad fx passes." + ) + logger.debug("value before pre/post grad fx passes %s", dict_base[key]) + logger.debug("value after pre/post grad fx passes %s", dict_control[key]) + is_allclose = False + return is_allclose + + +def compare_tuple_tensors(tuple_base, tuple_control, precision): + if len(tuple_base) != len(tuple_control): + logger.warning( + "Mismatch fw output length. before transformation: %s, after transformation: %s", + len(tuple_base), + len(tuple_control), + ) + return False + is_allclose = True + for i in range(len(tuple_base)): + # Some parameters have `None`, we skip them + if tuple_base[i] is None or tuple_control[i] is None: + continue + if not torch.allclose( + tuple_base[i], + tuple_control[i], + rtol=precision, + atol=precision, + equal_nan=True, + ): + logger.debug( + "forward output before pre/post grad fx passes %s", tuple_base[i] + ) + logger.debug( + "forward output after pre/post grad fx passes %s", tuple_control[i] + ) + is_allclose = False + return is_allclose + + +def compare_parameters(model_base, model_control, precision): + return compare_dict_tensors( + dict(model_base.named_parameters()), + dict(model_control.named_parameters()), + precision, + ) + + +def compare_forward_output(pred_base, pred_control, precision): + return compare_tuple_tensors( + pred_base, + pred_control, + precision, + ) + + +def compare_gradients(model_base, model_control, precision): + grad_base = {key: param.grad for key, param in model_base.named_parameters()} + grad_pt2 = {key: param.grad for key, param in model_control.named_parameters()} + return compare_dict_tensors( + grad_base, + grad_pt2, + precision, + ) + + +def run_model( + model_base, model_control, model_input, num_iterations=10, precision=1e-4 +): + clean_memory() + for i in range(num_iterations): + logger.info("start %s iteration", i) + set_deterministic() + pred_base = model_base(*model_input) + set_deterministic() + pred_control = model_control(*model_input) + + res = compare_parameters(model_base, model_control, precision) + logger.info("compare parameters. Numerical result : %s", res) + + res = compare_forward_output(pred_base, pred_control, precision) + logger.info("compare loss/predict. Numerical result : %s", res) + # tensor may not have a grad_fn + try: + _ = pred_base[0].sum().backward(retain_graph=True) + _ = pred_control[0].sum().backward(retain_graph=True) + res = compare_gradients(model_base, model_control, precision) + logger.info("compare param grad. Numerical result : %s", res) + except Exception: + logger.exception("Exception when comparing gradients") + traceback.print_exc() + + if config.fx_passes_numeric_check["requires_optimizer"]: + try: + optimizer_base = optim.SGD( + [param for name, param in model_base.named_parameters()], lr=0.01 + ) + optimizer_base.step() + + optimizer_control = optim.SGD( + [param for name, param in model_control.named_parameters()], lr=0.01 + ) + optimizer_control.step() + + res = compare_parameters(model_base, model_control, precision) + logger.info( + "compare parameters with optimizer added. Numerical result : %s", + res, + ) + except Exception: + logger.exception( + "Exception when optimizer is added to check parameter names" + ) + traceback.print_exc() + else: + logger.warning( + "no parameter with optimizer to compare with length %s before transformation" + " and the length %s after transformation", + len(dict(model_base.named_parameters())), + len(dict(model_control.named_parameters())), + ) + + +def numeric_check_if_enabled( + gm_before_fx_passes, + gm_after_fx_passes, + example_inputs, + num_iterations, + precision, +): + # need to topo-sort graphmodule before we run the model, + # otherwise it may fail as refer before def + # fail silently in order not to block the model run + try: + with torch.autograd.set_detect_anomaly(True): + run_model( + gm_before_fx_passes, + gm_after_fx_passes, + example_inputs, + num_iterations=num_iterations, + precision=precision, + ) + except Exception as e: + logger.warning( # noqa: G200 + "Runtime numeric check failed in pre grad fx passes with error: %s", e + ) + traceback.print_exc() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/overlap_manual_scheduling.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/overlap_manual_scheduling.py new file mode 100644 index 0000000000000000000000000000000000000000..540e73166ba45be7d9fd6eb12e627f795bae94dc --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/overlap_manual_scheduling.py @@ -0,0 +1,374 @@ +from __future__ import annotations + +import heapq +from collections import Counter, defaultdict +from typing import Any, Optional, TYPE_CHECKING + +import torch +import torch.fx as fx +from torch._dynamo.graph_deduplication import _stable_topological_sort +from torch._inductor.fx_passes.bucketing import ( + _schedulable_wait_node, + is_all_gather_into_tensor as is_all_gather, + is_reduce_scatter_tensor as is_reduce_scatter, + merge_all_gather_bucket, + merge_reduce_scatter_bucket, +) +from torch._inductor.fx_passes.overlap_preserving_bucketer import ( + bucket_key, + OverlapPreservingBucketer, +) +from torch._inductor.fx_passes.overlap_scheduling import ( + CollectiveInfo, + is_compute_node, + OverlapScheduler, +) +from torch.utils._ordered_set import OrderedSet + +from .graph_view import get_subgraph_by_path, GraphView, make_graph_view + + +if TYPE_CHECKING: + from collections.abc import Callable + + +class ManualOverlapPreservingBucketer(OverlapPreservingBucketer): + """ + Buckets collective operations based on user specifications. + The actual bucket happens in bucket_collectives, where all-gathers/reduce-scatters in + `nodes` will be buckted one single all-gather/reduce-scatter. + """ + + def __init__( + self, + node_users: dict[fx.Node, OrderedSet[fx.Node]], + *args: Any, + **kwargs: Any, + ): + super().__init__(*args, **kwargs) + self.node_users = node_users + self.wait_to_node_map: dict[fx.Node, fx.Node] = defaultdict() + + def _check_recursive_dep( + self, + node: fx.Node, + target_op: str, + dep_dict: dict[torch.fx.Node, OrderedSet[torch.fx.Node]], + ) -> bool: + """ + Check if the node is directly used for fetch parameters/gradients + + TODO (ruisizhang123): currently, we assume the node only pre-fetch/update one parameter/gradient + We should handle multiple parameters/gradients update case by checking if there are non closure + computes along the path from primal/output to coll_node + """ + deps: OrderedSet[fx.Node] = dep_dict[node] + seen_target_op = 0 + for d in deps: + if d.op == target_op: + seen_target_op += 1 + + return seen_target_op == 1 + + def _bucket_group(self, coll_nodes: list[fx.Node]) -> None: + assert len(coll_nodes) > 0, "bucketed coll_nodes should have nonzero node" + + waits = [self.collective_info[n].wait_node for n in coll_nodes] + # Use earliest wait insertion point + first_wait = min(waits, key=lambda w: self.node_idx[w]) + # Find insertion location + first = coll_nodes[0] + next_node = first + while next_node in coll_nodes: + next_node = next_node.next + + if is_all_gather(first): + new_nodes, replacements = merge_all_gather_bucket( + self.graph, + coll_nodes, + wait_insertion_point=first_wait, + insert_before=next_node, + mode="custom_ops", + ) + elif is_reduce_scatter(first): + new_nodes, replacements = merge_reduce_scatter_bucket( + self.graph, + coll_nodes, + wait_insertion_point=first_wait, + insert_before=next_node, + mode="custom_ops", + ) + else: + raise ValueError( + "bucket non all_gather/reduce_scatter node is not supported" + ) + + # Identify the new wait and start + new_waits = [n for n in new_nodes if _schedulable_wait_node(n)] + assert len(new_waits) == 1, f"Expected exactly one new wait, got {new_waits}" + new_wait = new_waits[0] + new_start = new_wait.args[0] + assert isinstance(new_start, fx.Node) + + # Set manual bucketing-specific metadata + # Note: Generic metadata (nn_module_stack, fwd_nn_module_stack, custom, stack_trace) + # is now preserved automatically by the bucketing functions in bucketing.py + node_type = ( + "bucketed_all_gather" if is_all_gather(first) else "bucketed_reduce_scatter" + ) + for n in new_nodes: + if n == new_wait: + node_type = node_type + "_wait" + n.meta["manual_bucket_node_type"] = node_type + if "wait" in node_type: + self.wait_to_node_map[n] = new_wait + + def manual_bucket_collectives(self, nodes: list[fx.Node]) -> None: + """ + Bucket all all-gather/reduce-scatter nodes from nodes into one all-gather/reduce-scatter. + """ + # Filter out valid collectives + collectives = [n for n in nodes if n in self.collective_info] + if collectives == []: + return + grouped_collectives: dict[object, OrderedSet[fx.Node]] = defaultdict(OrderedSet) + for node in collectives: + key = bucket_key(node) + if not (is_all_gather(node) or is_reduce_scatter(node)): + continue + # We only want to bucket all-gather/reduce-scatter that + # 1. all_gather that have ancestors dependent only on input placeholder(parameters) + # 2. reduce scatter that the wait user node is returned as output(gradients) + if is_all_gather(node) and not self._check_recursive_dep( + node, "placeholder", self.node_ancestors + ): + continue + if is_reduce_scatter(node) and not self._check_recursive_dep( + self.collective_info[node].wait_node, "output", self.node_users + ): + continue + if key is not None: + grouped_collectives[key].add(node) + + for key, nodes in grouped_collectives.items(): # type: ignore[arg-type] + self._bucket_group(list(nodes)) + + +class ManualOverlapScheduler(OverlapScheduler): + """ + Scheduler that manual buckets and reorders collective nodes based on module_bucket_plans + """ + + def __init__( + self, + gm: fx.GraphModule, + module_bucket_plans: list[list[str] | str], + insert_overlap_deps: bool, + module_stack_fn: None | Callable[[fx.Node], list[tuple[str, type[Any]]]] = None, + ): + super().__init__( + gm, + max_in_flight_gb=0.0, + max_compute_pre_fetch=0, + collective_bucketing=True, + insert_overlap_deps=insert_overlap_deps, + compute_overlap_multipler=0.0, + max_coll_distance=0, + custom_runtime_estimation=None, + collective_estimator="analytical", + max_memory_increase_gb=None, + max_memory_increase_ratio=None, + ) + self.module_bucket_plans = module_bucket_plans + self.nodes_in_subgraph: list[list[fx.Node]] = [] + + self.node_users: dict[fx.Node, OrderedSet[fx.Node]] = self._collect_node_users() + self.bucketer = ManualOverlapPreservingBucketer( + graph=self.graph, + collective_info=self.collective_info, + node_users=self.node_users, + scheduled=OrderedSet(self.graph.nodes), + ) + self.insert_overlap_deps = insert_overlap_deps + + self.module_stack_fn = module_stack_fn + + def _identify_collectives(self) -> None: + """Identify all collective operations.""" + for node in self.nodes: + if _schedulable_wait_node(node): + start = node.args[0] + info = CollectiveInfo( + start_node=start, + wait_node=node, + size_bytes=0, + estimated_time_ms=0, + exposed_time_ms=0, + ) + self.collective_info[start] = info + self.wait_to_start[node] = start + self.unscheduled_collectives.add(start) + + def run(self) -> torch.fx.GraphModule: + """Entry point to run the manual bucket algorithm""" + # Bucket collectives in each bucket_module + self._manual_bucket_collectives() + + # Reorder collectives with last/next bucket_module + self._manual_reorder_graph() + + return self.gm + + def _manual_reorder_graph(self) -> None: + """ + Reorder nodes in the FX graph to enforce manual overlap dependencies. + + Enforce: + - all_gather_start_i depends on all_gather_wait_(i-1) + - reduce_scatter_wait_i must happen before reduce_scatter_start_(i+1) + """ + delayed_rs_nodes: list[fx.Node] = [] + overlap_deps: dict[fx.Node, OrderedSet[fx.Node]] = defaultdict(OrderedSet) + + # schedule reduce scatter normally in self._schedule + while self.ready: + _, node = heapq.heappop(self.ready) + node_type = node.meta.get("manual_bucket_node_type", "") + + if node in self.scheduled: + continue + + if node_type == "bucketed_reduce_scatter": + # Ensure all delayed waits execute before this reduce_scatter + for delayed in delayed_rs_nodes: + self._schedule(delayed) + overlap_deps[delayed].add(node) + delayed_rs_nodes.clear() + + elif node_type == "bucketed_reduce_scatter_wait": + # Defer until next reduce_scatter + delayed_rs_nodes.append(node) + continue + self._schedule(node) + + for delayed in delayed_rs_nodes: + self._schedule(delayed) + + self.scheduled = OrderedSet(reversed(list(self.scheduled))) + picked_ag: list[fx.Node] = [] + last_compute: Optional[fx.Node] = None + + for node in self.scheduled: + node_type = node.meta.get("manual_bucket_node_type", "") + if node_type == "bucketed_all_gather": + picked_ag.append(node) + continue + + if node_type == "bucketed_all_gather_wait": + # Connect corresponding all_gather_wait -> all_gather edges + if picked_ag: + for ag in picked_ag: + overlap_deps[self.bucketer.wait_to_node_map[node]].add(ag) + picked_ag.clear() + if is_compute_node(node): + last_compute = node + + if last_compute is not None and not bool( + OrderedSet(picked_ag) & OrderedSet(self.node_ancestors[last_compute]) + ): + for ag in picked_ag: + overlap_deps[last_compute].add(ag) + + _stable_topological_sort(self.graph, overlap_deps) + self.graph.lint() + + if self.insert_overlap_deps: + from torch._inductor.fx_passes.control_dependencies import ( + preserve_node_ordering, + ) + + preserve_node_ordering(self.graph, overlap_deps) + + def _manual_bucket_collectives(self) -> None: + """Bucket nodes in each module_bucket from module_bucket_plans.""" + self._obtain_nodes_in_subgraph() + for i, nodes in enumerate(self.nodes_in_subgraph): + self.bucketer.manual_bucket_collectives(nodes=nodes) + + _stable_topological_sort(self.graph, {}) + self.graph.lint() + self.nodes = list(self.graph.nodes) + self.in_degree = Counter(user for node in self.nodes for user in node.users) + + def _collect_node_users(self) -> dict[fx.Node, OrderedSet[fx.Node]]: + """Collect all users for each node.""" + node_users: dict[fx.Node, OrderedSet[fx.Node]] = defaultdict(OrderedSet) + for node in self.nodes: + for output_node in list(node.users.keys()): + node_users[node].add(output_node) + node_users[node] |= node_users[output_node] + return node_users + + def _schedule(self, node: fx.Node) -> None: + """Schedule a node.""" + assert node not in self.scheduled + assert all(n in self.scheduled for n in node.all_input_nodes) + self.scheduled.add(node) + for user in node.users: + self.in_degree[user] -= 1 + if self.in_degree[user] == 0: + heapq.heappush(self.ready, ((), user)) + + def _obtain_nodes_in_subgraph(self) -> None: + """ + Obtain nodes in each subgraph from module_bucket_plans + """ + graph_view: GraphView | None = make_graph_view(self.graph, self.module_stack_fn) + if graph_view is None: + return + + for module in self.module_bucket_plans: + subgraph_view = get_subgraph_by_path(graph_view, module) + self.nodes_in_subgraph.append(subgraph_view) + + all_subgraph_nodes = [ + node for sublist in self.nodes_in_subgraph for node in sublist + ] + unique_subgraph_nodes = list(OrderedSet(all_subgraph_nodes)) + assert len(all_subgraph_nodes) <= len(unique_subgraph_nodes), ( + f"Overlapping FX nodes detected across subgraphs in `module_bucket_plans`. " + f"Expected disjoint node sets but found " + f"{len(all_subgraph_nodes) - len(unique_subgraph_nodes)} duplicated node(s)." + ) + + +def manual_overlap_bucketing( + gm: torch.fx.GraphModule, + module_bucket_plans: list[list[str] | str], + insert_overlap_deps: bool = False, + module_stack_fn: None | Callable[[fx.Node], list[tuple[str, type[Any]]]] = None, +) -> torch.fx.GraphModule: + """Schedule nodes based on user specifications in module_bucket_plans + The manual overlapping consists of two steps: + Step 1: bucket all-gather/reduce-scatter in each module in module_bucket_plans + Step 2: reorder all-gather to overlap with last module_bucket & + reorder reduce-scatter to overlap with next module_bucket + TODO(ruisizhang123): allow users to explicitly specify which + module_bucket they want to overlap. + + Args: + gm: input graph module to optimize. + module_bucket_plans: user specified FQNs + module_stack_fn: Optional callable for extracting module hierarchy from nodes. + Used to construct a GraphView for identifying nodes in module_bucket_plans. + The module_class component of the returned tuples is not used by this pass. + + See the `module_stack_fn` parameter in `make_graph_view` (graph_view.py) for + detailed documentation on signature, return format, and usage examples. + """ + # decode abbreviated FQNs to actual FQNs + overlapped_gm = ManualOverlapScheduler( + gm, module_bucket_plans, insert_overlap_deps, module_stack_fn + ).run() + overlapped_gm.recompile() + return overlapped_gm diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/overlap_preserving_bucketer.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/overlap_preserving_bucketer.py new file mode 100644 index 0000000000000000000000000000000000000000..7c819f37a1a83ecff13c4b18ceb2753b61087c29 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/overlap_preserving_bucketer.py @@ -0,0 +1,912 @@ +import itertools +import logging +from collections import defaultdict +from dataclasses import dataclass +from typing import Any, Literal, Optional + +import torch +import torch.fx as fx +from torch._dynamo.utils import counters +from torch._inductor.augmented_graph_helper import AugmentedGraphHelper +from torch._inductor.fx_passes.bucketing import ( + _schedulable_wait_node, + bucket_key, + BucketMode, + has_mergeable_all_gather_convert_dtype, + is_all_gather_into_tensor as is_all_gather, + is_reduce_scatter_tensor as is_reduce_scatter, +) +from torch._inductor.fx_passes.overlap_scheduling import ( + CollBucket, + CollectiveInfo, + get_group_name, + is_compute_node, +) +from torch.utils._ordered_set import OrderedSet + + +bucket_log = logging.getLogger(__name__) + + +@dataclass +class WhyNoBucket: + name1: str + name2: str + reason: str + args: tuple[Any, ...] + + def __init__(self, node1: fx.Node, node2: fx.Node) -> None: + self.name1 = node1.name + self.name2 = node2.name + self.reason = "" + self.args = () + + def __call__(self, reason: str, *args: Any) -> None: + if bucket_log.isEnabledFor(logging.DEBUG): + bucket_log.debug( + "cannot bucket %s with %s: " + reason, # noqa: G003 + self.name1, + self.name2, + *args, + ) + + +def is_collective_or_wait(n: fx.Node) -> bool: + """Check if node is a collective start or wait.""" + if _schedulable_wait_node(n): + return True + # Collective starts have exactly one use: the wait_tensor + if len(n.users) == 1: + user = next(iter(n.users.keys())) + if _schedulable_wait_node(user): + return True + return False + + +@dataclass +class PGEvent: + """ + Represents an important event in a process group timeline. Either + a collective start, wait, or hiding compute. Each node is linked + to its prev and next and these dependencies are reflected + in the augmented graph. + + We want to enforce a sequential ordering of collective starts and waits + because NCCL collectives on the same process group execute on the same CUDA + stream, creating implicit dependencies between all operations on that PG. + + A wait of a particular collective will implicitly force realization of all collectives + enqueued prior to that collective. + """ + + node: fx.Node + event_type: Literal["compute", "starts", "waits"] + position: int + prev: Optional["PGEvent"] = None + next: Optional["PGEvent"] = None + + @property + def is_start(self) -> bool: + return self.event_type == "starts" + + @property + def is_wait(self) -> bool: + return self.event_type == "waits" + + @property + def is_compute(self) -> bool: + return self.event_type == "compute" + + def unlink(self) -> tuple[Optional["PGEvent"], Optional["PGEvent"]]: + """Remove this event from the linked list, return (prev, next).""" + prev_event, next_event = self.prev, self.next + if self.prev: + self.prev.next = self.next + if self.next: + self.next.prev = self.prev + self.prev = None + self.next = None + return prev_event, next_event + + def insert_between( + self, prev_event: Optional["PGEvent"], next_event: Optional["PGEvent"] + ) -> None: + """Insert this event between prev_event and next_event in the linked list.""" + if prev_event: + prev_event.next = self + self.prev = prev_event + + if next_event: + next_event.prev = self + self.next = next_event + + +class OverlapPreservingBucketer: + """ + Buckets collective operations while preserving compute-collective overlap relationships. + Uses an augmented graph to track dependencies between compute and collective operations. + """ + + def __init__( + self, + graph: fx.Graph, + collective_info: dict[fx.Node, CollectiveInfo], + scheduled: OrderedSet[fx.Node], + max_bucket_memory_gb: float = 1.0, + max_coll_distance: int = 1000, + insert_overlap_deps: bool = False, + bucket_mode: BucketMode = "custom_ops_multidtype", + ): + self.graph = graph + self.collective_info = collective_info + self.scheduled = scheduled + self.max_bucket_memory_gb = max_bucket_memory_gb + self.node_idx = {n: i for i, n in enumerate(scheduled)} + self.max_coll_distance = max_coll_distance + self.insert_overlap_deps = insert_overlap_deps + self.bucket_mode = bucket_mode + self.node_to_event: dict[fx.Node, PGEvent] = {} + self.all_hiding_nodes: OrderedSet[fx.Node] = OrderedSet() + + # Compute ancestors including original graph edges and hiding interval dependencies + self.node_ancestors = self._compute_node_ancestors() + self.aug_graph = AugmentedGraphHelper(self.graph, self.node_ancestors) + + # Build timelines and add constraints to aug_graph + self.pg_to_timeline_head: dict[str, Optional[PGEvent]] = self.build_timelines() + self._add_hiding_interval_constraints() + + def _compute_node_ancestors(self) -> dict[fx.Node, OrderedSet[fx.Node]]: + """ + Compute ancestor sets for all nodes including: + 1. Original graph edges + 2. Hiding interval deps: collective_start -> hiding_node -> wait + """ + augmented_inputs: dict[fx.Node, OrderedSet[fx.Node]] = defaultdict(OrderedSet) + for start, info in self.collective_info.items(): + if info.is_exposed: + continue + for hiding_node in info.hiding_nodes: + augmented_inputs[hiding_node].add(start) + augmented_inputs[info.wait_node].add(hiding_node) + + node_ancestors: dict[fx.Node, OrderedSet[fx.Node]] = defaultdict(OrderedSet) + for node in self.scheduled: + for input_node in itertools.chain( + augmented_inputs[node], node.all_input_nodes + ): + node_ancestors[node].add(input_node) + node_ancestors[node] |= node_ancestors[input_node] + + return node_ancestors + + def build_timelines(self) -> dict[str, Optional[PGEvent]]: + "Construct each process groups ordered series of event" + all_pgs: OrderedSet[str] = OrderedSet() + for start in self.collective_info: + pg = get_group_name(start) + all_pgs.add(pg) + + pg_timeline: dict[str, Optional[PGEvent]] = {} + for pg in all_pgs: + pg_timeline[pg] = self.build_timeline(pg) + + return pg_timeline + + def build_timeline(self, pg: str) -> Optional[PGEvent]: + """ + Build a timeline of important events (starts, waits, hiding compute) for this process group + and constrain this ordering in the augmented graph. + + Sequential dependencies are added between all events because NCCL collectives on the same + process group execute on the same CUDA stream, enforcing LIFO semantics where later-issued + collectives must complete before earlier ones can finish. + """ + + head = None + prev_event = None + position = 0 + hiding_nodes = OrderedSet() + + for node in self.scheduled: + node_type = None + + # Determine if this node is relevant for this PG + if node in self.collective_info and get_group_name(node) == pg: + node_type = "starts" + hiding_nodes |= self.collective_info[node].hiding_nodes + elif _schedulable_wait_node(node): + wait_input = node.args[0] + if isinstance(wait_input, fx.Node) and get_group_name(wait_input) == pg: + node_type = "waits" + # Wait for a different PG but hiding a collective on this PG + elif node in hiding_nodes: + node_type = "compute" + elif is_compute_node(node) or node in hiding_nodes: + node_type = "compute" + + if node_type is None: + continue + + event = PGEvent(node=node, event_type=node_type, position=position) # type: ignore[arg-type] + + event.insert_between(prev_event, None) + + # Add sequential dependency to augmented graph + if prev_event: + self.aug_graph.add_extra_dep(n=event.node, dep=prev_event.node) + else: + head = event + + prev_event = event + position += 1 + + return head + + def _populate_node_to_event(self, pg: str) -> None: + """Populate node_to_event mapping for a specific PG's timeline.""" + self.node_to_event.clear() + head = self.pg_to_timeline_head[pg] + curr = head + while curr is not None: + self.node_to_event[curr.node] = curr + curr = curr.next + + def _add_hiding_interval_constraints(self) -> None: + """ + Add hiding interval constraints: start -> compute -> wait. + """ + for start, info in self.collective_info.items(): + if info.is_exposed: + continue + for hn in info.hiding_nodes: + # Enforce: start -> compute -> wait + self.aug_graph.add_extra_dep(n=hn, dep=start) + self.aug_graph.add_extra_dep(n=info.wait_node, dep=hn) + + self.all_hiding_nodes |= info.hiding_nodes + + def bucket_collectives(self) -> None: + # Group collectives by PG first + pg_collectives: dict[str, OrderedSet[fx.Node]] = defaultdict(OrderedSet) + for start in self.collective_info: + pg = get_group_name(start) + pg_collectives[pg].add(start) + + all_buckets: list[CollBucket] = [] + for pg, collectives in pg_collectives.items(): + # Populate node_to_event for this PG's timeline + self._populate_node_to_event(pg) + + # Group by bucket key within this PG + grouped_collectives: dict[object, OrderedSet[fx.Node]] = defaultdict( + OrderedSet + ) + for start in collectives: + key = bucket_key(start, self.bucket_mode) + if key is not None: + grouped_collectives[key].add(start) + + # Find buckets for this PG + for key, collective_group in grouped_collectives.items(): + bucket_log.debug( + "bucketing collective group with key %s: %s", + key, + [n.name for n in collective_group], + ) + buckets = self._find_buckets(collective_group) + all_buckets.extend(buckets) + + # Apply bucketing transformations + # Dependencies are tracked in aug_graph.extra_deps during bucketing + for coll_bucket in all_buckets: + if len(coll_bucket.collectives) <= 1: + continue + + counters["inductor"]["collective_buckets"] += 1 + self._apply_bucket(coll_bucket) + + # Extract all dependencies from augmented graph + # This includes: + # - Sequential timeline deps (added during build_timeline) + # - Hiding interval deps (added during _add_hiding_interval_constraints) + # - All transferred deps from bucketing (transferred during _apply_bucket) + additional_deps = self.aug_graph.get_all_extra_deps() + + # Apply topological sort with all dependencies + from torch._dynamo.graph_deduplication import _stable_topological_sort + + for n, deps in additional_deps.items(): + torch._check( + not n._erased, lambda: f"Erased node deps not transferred: {n}" + ) + for d in deps: + torch._check( + not d._erased, lambda: f"Erased node deps not transferred: {d}" + ) + + _stable_topological_sort(self.graph, additional_deps) + + # After topological sort, preserve dependencies using effect tokens + # Only preserve edges where NOT both nodes are collective starts or waits + if self.insert_overlap_deps: + filtered_deps: dict[fx.Node, OrderedSet[fx.Node]] = {} + for node, deps in additional_deps.items(): + filtered_node_deps: OrderedSet[fx.Node] = OrderedSet() + + # only preserve comm-comptue overlap for now, although we could more + # generally constrain + for dep in deps: + if not (is_collective_or_wait(node) and is_collective_or_wait(dep)): + filtered_node_deps.add(dep) + + if filtered_node_deps: + filtered_deps[node] = filtered_node_deps + + self._preserve_dependencies_with_tokens(filtered_deps) + + self.graph.lint() + + def _find_buckets( + self, + collective_group: OrderedSet[fx.Node], + ) -> list[CollBucket]: + """Find valid buckets within a group of similar collectives.""" + max_bucket_bytes = int(self.max_bucket_memory_gb * 1024 * 1024 * 1024) + buckets = [] + processed: OrderedSet[fx.Node] = OrderedSet() + + # Sort collectives by node index for efficient distance checking + sorted_collectives = sorted(collective_group, key=lambda n: self.node_idx[n]) + + for i, start_node in enumerate(sorted_collectives): + if start_node in processed: + continue + + if ( + start_node in self.all_hiding_nodes + or self.collective_info[start_node].wait_node in self.all_hiding_nodes + ): + continue + + # Initialize bucket with first collective + bucket_info = CollBucket( + collectives=[start_node], + total_bytes=self.collective_info[start_node].size_bytes, + ) + processed.add(start_node) + + # Greedy optimization: stop after consecutive failures + consecutive_failures = 0 + max_consecutive_failures = 20 + + # Check candidates in sorted order, break when beyond max distance + for candidate in sorted_collectives[i + 1 : i + 1 + self.max_coll_distance]: + candidate_bytes = self.collective_info[candidate].size_bytes + # proxy on memory use, if we see a too large bucket, + # dont look for another, later bucket + if bucket_info.total_bytes + candidate_bytes > max_bucket_bytes: + break + + if candidate in processed: + continue + + if self._can_add_to_bucket(bucket_info, candidate): + bucket_info.collectives.append(candidate) + bucket_info.total_bytes += candidate_bytes + processed.add(candidate) + consecutive_failures = 0 # Reset on success + else: + consecutive_failures += 1 + if consecutive_failures >= max_consecutive_failures: + break + + if len(bucket_info.collectives) > 1: + buckets.append(bucket_info) + + return buckets + + def _ancestor_dep(self, n1: fx.Node, n2: fx.Node) -> bool: + """Check if there's an ancestor relationship between two nodes.""" + return n1 in self.node_ancestors[n2] or n2 in self.node_ancestors[n1] + + def _get_intervals( + self, event: PGEvent + ) -> tuple[Optional[tuple[int, int]], list[tuple[int, int]]]: + """Get (execution_interval, hiding_intervals) for a collective event. + + Returns: + (execution_interval, hiding_intervals) where: + - execution_interval is (start_pos, wait_pos) or None + - hiding_intervals is a list of (start_pos, compute_pos) tuples, one for each hiding node + + Works for both start and wait events by looking up the collective info. + """ + # For start events, directly use the node + if event.is_start: + coll = event.node + # For wait events, look up the start node from the event's args + elif event.is_wait: + wait_input = event.node.args[0] + if not isinstance(wait_input, fx.Node): + return None, [] + coll = wait_input + else: + return None, [] + + if coll not in self.collective_info: + return None, [] + + info = self.collective_info[coll] + start_event = self.node_to_event[coll] + wait_event = self.node_to_event[info.wait_node] + + execution_interval = (start_event.position, wait_event.position) + + hiding_intervals = [] + if info.hiding_nodes: + for hiding_node in info.hiding_nodes: + hiding_intervals.append( + ( + start_event.position, + self.node_to_event[hiding_node].position, + ) + ) + + return execution_interval, hiding_intervals + + def _preserves_hiding_intervals( + self, + bucket_info: CollBucket, + candidate: fx.Node, + start_pos: fx.Node, + wait_pos: fx.Node, + why: WhyNoBucket, + ) -> bool: + """ + Check that (start_pos, wait_pos) doesn't violate any hiding intervals or collectives. + + Collects all execution and hiding intervals in the affected timeline regions, + then checks: + 1. All bucket hiding compute stays between new start/wait + 2. No other collective's compute interval is enclosed by bucket execution interval + 3. No other collective's execution interval encloses bucket compute intervals + """ + # Collect all collectives being bucketed + all_bucketed_colls = [candidate] + list(bucket_info.collectives) + all_bucketed_waits = [ + self.collective_info[coll].wait_node for coll in all_bucketed_colls + ] + + # Collect hiding compute positions for the bucket + bucket_hiding_compute_positions = [] + for coll in all_bucketed_colls: + for coll_hiding_node in self.collective_info[coll].hiding_nodes: + bucket_hiding_compute_positions.append( + self.node_to_event[coll_hiding_node].position + ) + + # Get new positions + new_start_event = self.node_to_event[start_pos] + new_wait_event = self.node_to_event[wait_pos] + + # Check 1: All bucket hiding compute must be between new start and wait + for compute_pos in bucket_hiding_compute_positions: + if not (new_start_event.position < compute_pos < new_wait_event.position): + why( + "hiding compute at pos %d not between start %d and wait %d", + compute_pos, + new_start_event.position, + new_wait_event.position, + ) + return False + + def get_wait(n: fx.Node) -> fx.Node: + return self.collective_info[n].wait_node + + def get_pos(n: fx.Node) -> int: + return self.node_to_event[n].position + + latest_start_pos = max(get_pos(candidate), get_pos(bucket_info.collectives[0])) + earliest_wait_pos = min( + get_pos(get_wait(candidate)), get_pos(get_wait(bucket_info.collectives[0])) + ) + + # Bucket execution interval + bucket_execution_interval = (new_start_event.position, new_wait_event.position) + + # Because collectives on the same PG operate under LIFO semantics, + # it's only possible for us to force an early realization of an unrelated collective + # by delaying a start or raising a wait. + # We search in the interval from old_start -> new_start, to see if would be + # forcing another collective to be realized prior to its hiding nodes. + # Similarly, we search from old_wait -> new_wait, in the reverse direction, + # to check the same thing. + + execution_intervals = [bucket_execution_interval] + hiding_intervals = [ + (bucket_execution_interval[0], pos) + for pos in bucket_hiding_compute_positions + ] + + curr_event = new_start_event.next + while curr_event is not None and curr_event.position < latest_start_pos: + if ( + curr_event.node not in all_bucketed_colls + and curr_event.node not in all_bucketed_waits + ): + exec_interval, hiding_interval_list = self._get_intervals(curr_event) + if exec_interval: + execution_intervals.append(exec_interval) + hiding_intervals.extend(hiding_interval_list) + curr_event = curr_event.next + + curr_event = new_wait_event.prev + while curr_event is not None and curr_event.position > earliest_wait_pos: + if ( + curr_event.node not in all_bucketed_colls + and curr_event.node not in all_bucketed_waits + ): + exec_interval, hiding_interval_list = self._get_intervals(curr_event) + if exec_interval: + execution_intervals.append(exec_interval) + hiding_intervals.extend(hiding_interval_list) + curr_event = curr_event.prev + + # Check: no hiding interval should be enclosed by any execution interval + def enclosed_interval(inner: tuple[int, int], outer: tuple[int, int]) -> bool: + return outer[0] < inner[0] and inner[1] < outer[1] + + for hiding_interval in hiding_intervals: + for execution_interval in execution_intervals: + if enclosed_interval(hiding_interval, execution_interval): + why( + "hiding interval %s enclosed by execution interval %s", + hiding_interval, + execution_interval, + ) + return False + + return True + + def remove_from_event( + self, node: fx.Node + ) -> tuple[Optional[PGEvent], Optional[PGEvent]]: + """Remove node from timeline and return (prev_event, next_event).""" + event = self.node_to_event[node] + assert not event.is_compute, "Cannot remove compute events from timeline" + + prev_event, next_event = event.unlink() + + # Remove augmented graph dependency + if prev_event: + self.aug_graph.remove_extra_dep(n=node, dep=prev_event.node) + if next_event: + self.aug_graph.remove_extra_dep(n=next_event.node, dep=node) + + # Add bypass dependency + if prev_event and next_event: + self.aug_graph.add_extra_dep(n=next_event.node, dep=prev_event.node) + + return prev_event, next_event + + def restore_to_event( + self, + node: fx.Node, + prev_event: Optional[PGEvent], + next_event: Optional[PGEvent], + ) -> None: + """Restore node to timeline after failed merge attempt.""" + event = self.node_to_event[node] + + # Reinsert into linked list + event.insert_between(prev_event, next_event) + if prev_event: + self.aug_graph.add_extra_dep(n=node, dep=prev_event.node) + if next_event and not prev_event: + self.aug_graph.add_extra_dep(n=next_event.node, dep=node) + + # Remove bypass dependency + if prev_event and next_event: + self.aug_graph.remove_extra_dep(n=next_event.node, dep=prev_event.node) + + def _try_timeline_position( + self, + bucket_info: CollBucket, + candidate: fx.Node, + start_pos: fx.Node, + wait_pos: fx.Node, + why: WhyNoBucket, + ) -> bool: + """ + Try a specific timeline position for the candidate. + Returns True if valid and merges are successful. + """ + candidate_info = self.collective_info[candidate] + candidate_wait = candidate_info.wait_node + + # Quick check: does this violate hiding intervals? + if not self._preserves_hiding_intervals( + bucket_info, candidate, start_pos, wait_pos, why + ): + return False + + # Determine which start needs to move + existing_coll = bucket_info.collectives[0] + if start_pos == existing_coll: + start_to_move = candidate + else: + assert start_pos == candidate + start_to_move = existing_coll + + # Remove start from timeline + start_prev, start_next = self.remove_from_event(start_to_move) + + # Check if starts can be merged + if self.aug_graph.has_path(existing_coll, candidate) or self.aug_graph.has_path( + candidate, existing_coll + ): + # Restore start constraints + self.restore_to_event(start_to_move, start_prev, start_next) + why("path exists between starts") + return False + + # Merge starts + self.aug_graph.merge_to_set(existing_coll, candidate) + + # Determine which wait needs to move + existing_wait = self.collective_info[existing_coll].wait_node + candidate_wait = self.collective_info[candidate].wait_node + + if wait_pos == existing_wait: + wait_to_move = candidate_wait + else: + wait_to_move = existing_wait + + # Remove wait from timeline + wait_prev, wait_next = self.remove_from_event(wait_to_move) + + # Check if waits can be merged + if self.aug_graph.has_path( + existing_wait, candidate_wait + ) or self.aug_graph.has_path(candidate_wait, existing_wait): + # Restore wait constraints + self.restore_to_event(wait_to_move, wait_prev, wait_next) + # Unmerge the start we just merged + self.aug_graph.unmerge_node(candidate) + # Restore start constraints + self.restore_to_event(start_to_move, start_prev, start_next) + why("path exists between waits") + return False + + # Merge waits - success! + self.aug_graph.merge_to_set(existing_wait, candidate_wait) + + # Update node_to_event for moved nodes + target_start_event = self.node_to_event[start_pos] + target_wait_event = self.node_to_event[wait_pos] + + self.node_to_event[candidate] = target_start_event + self.node_to_event[candidate_wait] = target_wait_event + self.node_to_event[existing_coll] = target_start_event + self.node_to_event[existing_wait] = target_wait_event + + return True + + def _has_ancestor_conflicts( + self, bucket_info: CollBucket, candidate: fx.Node + ) -> bool: + """ + Check if candidate has ancestor conflicts with bucket collectives. + Returns True if there are conflicts. + """ + candidate_info = self.collective_info[candidate] + candidate_wait = candidate_info.wait_node + + for coll in bucket_info.collectives: + if ( + coll in self.node_ancestors[candidate] + or candidate in self.node_ancestors[coll] + ): + return True + + # Check if waits are ancestors of each other + coll_wait = self.collective_info[coll].wait_node + if ( + coll_wait in self.node_ancestors[candidate_wait] + or candidate_wait in self.node_ancestors[coll_wait] + ): + return True + + # Check if existing hiding node conflicts with candidate wait + for old_hiding_node in self.collective_info[coll].hiding_nodes: + if candidate_wait in self.node_ancestors[old_hiding_node]: + return True + + # Check if candidate hiding node conflicts with existing wait + for new_hiding_node in candidate_info.hiding_nodes: + if coll_wait in self.node_ancestors[new_hiding_node]: + return True + + return False + + def _can_add_to_bucket( + self, + bucket_info: CollBucket, + candidate: fx.Node, + ) -> bool: + """ + Check if candidate can be added to bucket without breaking comm/compute overlap. + + Strategy: Try all timeline positions - combinations of [existing_start, candidate_start] + x [existing_wait, candidate_wait]. For each position, verify: + 1. Hiding intervals preserved - for any (start, hiding_compute, wait) interval, no other + collective's (start, wait) pair falls between start and hiding_compute, which would + force realization and break overlap due to LIFO semantics + 2. Topologically valid (no dependency cycles) + + Return True if any timeline position satisfies both constraints. + """ + existing_coll = bucket_info.collectives[0] + why = WhyNoBucket(existing_coll, candidate) + + candidate_info = self.collective_info[candidate] + + if ( + candidate in self.all_hiding_nodes + or candidate_info.wait_node in self.all_hiding_nodes + ): + why("nyi: bucketing collective used for overlap") + return False + + # Step 1: Quick check using precomputed ancestors + # These ancestors are computed prior to adding augmented dependencies and not updated, + # so if any of these checks fail then the merge will not be topologically valid + # even ignoring comm/compute overlap + if self._has_ancestor_conflicts(bucket_info, candidate): + why("has ancestor conflicts") + return False + + # Step 2: Try different rail positions + existing_wait = self.collective_info[existing_coll].wait_node + + candidate_start = candidate + candidate_wait = candidate_info.wait_node + + # Try combinations in order of likelihood to succeed + # (early start, later wait is most likely to work) + combinations = [ + ( + existing_coll, + candidate_wait, + ), # Move candidate start early, keep wait late + ( + existing_coll, + existing_wait, + ), # Move candidate start early, move wait early + (candidate_start, candidate_wait), # Keep both in place + (candidate_start, existing_wait), # Keep start in place, move wait early + ] + + for i, (start_pos, wait_pos) in enumerate(combinations): + if self._try_timeline_position( + bucket_info, candidate, start_pos, wait_pos, why + ): + bucket_log.debug( + "bucketed %s with %s using timeline position %d: (start=%s, wait=%s)", + candidate.name, + existing_coll.name, + i + 1, + start_pos.name, + wait_pos.name, + ) + return True + + why("all timeline positions failed") + return False + + def _apply_bucket(self, bucket_info: CollBucket) -> None: + """ + Apply bucketing transformation. + + Dependencies are added to aug_graph.extra_deps and transferred from old nodes. + """ + + from torch._inductor.fx_passes.bucketing import ( + is_all_reduce_tensor, + merge_all_gather_bucket, + merge_all_reduce_bucket, + merge_reduce_scatter_bucket, + ) + + bucket = bucket_info.collectives + + # Collect old nodes BEFORE they're erased + old_starts = list(bucket) + old_waits = [self.collective_info[n].wait_node for n in bucket] + + fused_convert_dtypes = [] + for n in old_starts: + if has_mergeable_all_gather_convert_dtype(n): + fused_convert_dtypes.append(n.args[0]) + + # Find where to place the bucketed operations + next_node = bucket[0] + while next_node in bucket: + next_node = next_node.next + + # Don't use wait_insertion_point - let merge functions place waits naturally + # The wait_insertion_point feature tries to move waits to a specific location, + # but this can cause issues when that location is one of the nodes being erased + # Create bucketed collective (this will erase old nodes) + if is_all_gather(bucket[0]): + new_nodes, replacements = merge_all_gather_bucket( + self.graph, + bucket, + insert_before=next_node, + mode="custom_ops", + ) + elif is_all_reduce_tensor(bucket[0]): + new_nodes, replacements = merge_all_reduce_bucket( + self.graph, + bucket, + mode="custom_ops", + insert_before=next_node, + ) + else: + assert is_reduce_scatter(bucket[0]) + new_nodes, replacements = merge_reduce_scatter_bucket( + self.graph, + bucket, + insert_before=next_node, + mode="custom_ops", + ) + + # Get new nodes + new_waits = [n for n in new_nodes if _schedulable_wait_node(n)] + assert len(new_waits) == 1 + + new_wait = new_waits[0] + new_start = new_wait.args[0] + assert isinstance(new_start, fx.Node) + + # Create mapping of all erased nodes to their replacements + erased_to_new = {} + for old_start in old_starts: + erased_to_new[old_start] = new_start + for old_wait in old_waits: + erased_to_new[old_wait] = new_wait + + # Handle convert_element_type nodes that were fused and erased + # The bucketed operation may have a _pre_bucket op that handles dtype conversion + if fused_convert_dtypes: + # all gather bucketing may fuse in dtype conversion into the bucketing + # if so, we need to transfer hiding deps from the old dtype conversion + # to the new bucketing node + new_convert_dtypes_node = new_start.kwargs["out"] + assert isinstance(new_convert_dtypes_node, fx.Node) + assert ( + new_convert_dtypes_node.target + == torch.ops.bucketing._pre_bucket_all_gather.default + ) + + for n in fused_convert_dtypes: + erased_to_new[n] = new_convert_dtypes_node + + # Transfer all dependencies from old nodes to new nodes + self.aug_graph.transfer_erased_node_deps(erased_to_new) + + def _preserve_dependencies_with_tokens( + self, additional_deps: dict[fx.Node, OrderedSet[fx.Node]] + ) -> None: + """ + Preserve dependencies using effect tokens and with_effects higher-order op. + + Uses the standalone token_dependencies utility for consistent behavior + across different overlap scheduling approaches. + """ + from torch._inductor.fx_passes.control_dependencies import ( + preserve_node_ordering, + ) + + preserve_node_ordering(self.graph, additional_deps) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/overlap_scheduling.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/overlap_scheduling.py new file mode 100644 index 0000000000000000000000000000000000000000..5770991dc233ef3dac26a8027f990c048acf3ce9 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/overlap_scheduling.py @@ -0,0 +1,1324 @@ +import functools +import heapq +import itertools +import logging +import sys +from collections import Counter, defaultdict +from collections.abc import Callable, Iterable +from dataclasses import dataclass, field +from typing import Any, Literal + +import torch +import torch.fx as fx +from torch._dynamo.utils import counters, dynamo_timed +from torch._inductor.comm_analysis import estimate_fx_collective_memory_footprint +from torch._inductor.fx_passes.bucketing import _schedulable_wait_node, is_wait_tensor +from torch._inductor.fx_passes.memory_estimator import MemoryTracker +from torch.fx.operator_schemas import normalize_function +from torch.utils._ordered_set import OrderedSet +from torch.utils._python_dispatch import _disable_current_modes + + +log = logging.getLogger(__name__) + +from torch._inductor.fx_passes.bucketing import bucket_key + +from ..pattern_matcher import stable_topological_sort + + +def estimate_runtime_analytical(n: torch.fx.Node) -> float: + """Estimate runtime using analytical roofline model for mm operations.""" + if n.target != torch.ops.aten.mm.default: + return 0.0 + import torch.utils._pytree as pytree + from torch.distributed._tools import RuntimeEstimator + + def _val(node: Any) -> Any: + if not isinstance(node, torch.fx.Node): + return node + return node.meta["val"] + + args = pytree.tree_map(_val, n.args) + kwargs = pytree.tree_map(_val, n.kwargs) + _, ms = RuntimeEstimator._roofline_estimate(n.target, args, kwargs) + return ms + + +@dataclass +class WhyNoOverlap: + """Track reasons why a collective cannot overlap with compute.""" + + compute_name: str + collective_name: str + + def __init__(self, compute_node: fx.Node, collective_node: fx.Node) -> None: + self.compute_name = compute_node.name + self.collective_name = collective_node.name + + def __call__(self, reason: str, *args: Any) -> None: + if log.isEnabledFor(logging.DEBUG): + log.debug( + "cannot overlap %s with %s: " + reason, # noqa: G003 + self.collective_name, + self.compute_name, + *args, + ) + + +def get_group_name(n: fx.Node) -> str: + """Extract the group name from a collective operation node.""" + opt_args_kwargs = normalize_function( + n.target, # type: ignore[arg-type] + args=n.args, + kwargs=n.kwargs, + normalize_to_only_use_kwargs=True, + ) + assert opt_args_kwargs is not None + _, kwargs = opt_args_kwargs + return kwargs["group_name"] + + +def get_custom_estimation( + n: fx.Node, + custom_runtime_estimation: Callable[[fx.Node, int | None], float | None] + | None = None, + override_size: int | None = None, +) -> float | None: + if custom_runtime_estimation is None: + return None + + return custom_runtime_estimation(n, override_size) + + +def estimate_collective_time( + n: fx.Node, + override_size: int | None = None, + custom_runtime_estimation: Callable[[fx.Node, int | None], float | None] + | None = None, +) -> float: + """Estimate the runtime of a collective operation, optionally with an overridden size.""" + if ( + est := get_custom_estimation(n, custom_runtime_estimation, override_size) + ) is not None: + return est + + # Use analytical model (benchmarking is handled separately in alignment) + return torch._inductor.comm_analysis.estimate_nccl_collective_runtime_from_fx_node( + n, override_size + ) + + +def is_compute_node(n: fx.Node) -> bool: + """ + Should we consider this node computationally expensive ? + Currently uses flop registration, but we could expand more generally. + """ + return ( + getattr(n.target, "overloadpacket", None) + in torch.utils.flop_counter.flop_registry + ) + + +def is_reduce_scatter(n: fx.Node) -> bool: + """Check if node is a reduce_scatter collective.""" + return "reduce_scatter" in str(n.target).lower() + + +def get_hint(x: int | torch.SymInt) -> int | None: + if isinstance(x, int): + return x + assert isinstance(x, torch.SymInt) + if not x.node.has_hint(): + return None + return x.node.hint + + +def get_collective_do_bench() -> Callable[[Callable[[], Any]], float]: + with dynamo_timed("collective_compute_do_bench"): + return functools.partial( + # pyrefly: ignore [bad-argument-type] + torch._inductor.runtime.benchmarking.benchmarker.benchmark_gpu, + warmup=5, + ) + + +def benchmark_node_with_cache_key( + n: fx.Node, + custom_runtime_estimation: Callable[[fx.Node, int | None], float | None] + | None = None, +) -> tuple[float, str | None]: + """Benchmark a compute node and return (runtime, cache_key).""" + assert is_compute_node(n) + + from torch._dynamo.testing import rand_strided + + # todo - skip unbacked, symbolic + success, args, kwargs = torch._inductor.fx_utils.get_fake_args_kwargs(n) + + if not success: + return 0, None + + unbacked_tensor = False + + key = f"{str(n.target)}: " + + def to_real(t: torch.Tensor) -> torch.Tensor | None: + shape = [get_hint(dim) for dim in t.shape] + stride = [get_hint(s) for s in t.stride()] + + if any(s is None for s in itertools.chain(shape, stride)): + nonlocal unbacked_tensor + unbacked_tensor = True + return None + + nonlocal key + key += f"T: {shape, stride, t.dtype} " + return rand_strided(shape, stride, device=t.device, dtype=t.dtype) # type: ignore[arg-type] + + with _disable_current_modes(): + args, kwargs = torch.utils._pytree.tree_map_only( + torch.Tensor, + lambda t: to_real(t), + (args, kwargs), + ) + + if val := get_cached_node_time(key): + return val, key + + if unbacked_tensor: + return 0, key + + if ( + est := get_custom_estimation(n, custom_runtime_estimation, None) + ) is not None: + set_cached_node_time(key, est) + return est, key + + bench = get_collective_do_bench() + out = bench(lambda: n.target(*args, **kwargs)) # type: ignore[operator] + set_cached_node_time(key, out) + return out, key + + +def benchmark_node( + n: fx.Node, + custom_runtime_estimation: Callable[[fx.Node, int | None], float | None] + | None = None, +) -> float: + return benchmark_node_with_cache_key(n, custom_runtime_estimation)[0] + + +@functools.cache +def get_benchmark_cache() -> torch._inductor.codecache.LocalCache: + return torch._inductor.codecache.LocalCache() + + +def get_cached_node_time(key: str) -> float: + return get_benchmark_cache().lookup(key) # type: ignore[return-value] + + +def set_cached_node_time(key: str, value: float) -> None: + return get_benchmark_cache().set_value(key, value=value) + + +@dataclass +class CollectiveInfo: + """Track info about a collective operation""" + + start_node: fx.Node + wait_node: fx.Node + size_bytes: int + estimated_time_ms: float + exposed_time_ms: float # How much of this collective is still exposed + hiding_nodes: OrderedSet[fx.Node] = field(default_factory=OrderedSet) + + @property + def is_exposed(self) -> bool: + return self.exposed_time_ms != 0 + + +@dataclass +class CollBucket: + """Track information about a bucket of collectives.""" + + collectives: list[fx.Node] # Original collective starts + bucketed_start: fx.Node | None = None # After bucketing + bucketed_wait: fx.Node | None = None # After bucketing + total_bytes: int = 0 + + +def gb_to_bytes(gb: float) -> int: + """Convert gigabytes to bytes.""" + return int(gb * 1024 * 1024 * 1024) + + +class OverlapScheduler: + """ + Scheduler that reorders operations to maximize compute-collective overlap. + + The reordering is done as a scheduling pass. We maintain a priority queue of + schedulable nodes. The nodes are ranked by: + + 1) the compute node index they dominate. this allows reordering locally, such as with + parallel mms, and also allows overlapping reduce scatter nodes outputs in the backward + with compute by deferring their waits. + + 2) whether the current node is a collective or wait that is currently exposed but has a compute + node which it could be overlapped with. + + 3) original order in the graph for stability. + + When we schedule compute nodes, we first overlap exposed in-flight collectives, then look for unscheduled + collectives that can be scheduled concurrently. + + TODO: + - experiment with other priority scores / allow other mechanisms of reorder / more strict adherence to original graph + - memory limit for deferred scheduling of reduce_scatter nodes. + """ + + def __init__( + self, + gm: torch.fx.GraphModule, + max_in_flight_gb: float, + max_compute_pre_fetch: int, + collective_bucketing: bool, + insert_overlap_deps: bool, + compute_overlap_multipler: float, + max_coll_distance: int, + custom_runtime_estimation: Callable[[fx.Node, int | None], float | None] | None, + collective_estimator: Literal["analytical", "benchmark"], + max_memory_increase_gb: float | None = 1.0, + max_memory_increase_ratio: float | None = 0.05, + ): + self.gm = gm + self.graph = gm.graph + self.compute_overlap_multipler = compute_overlap_multipler + self.max_node_distance = max_coll_distance + self.max_in_flight_bytes: int = gb_to_bytes(max_in_flight_gb) + self.custom_runtime_estimation = custom_runtime_estimation + self.collective_bucketing = collective_bucketing + self.insert_overlap_deps = insert_overlap_deps + self.max_compute_pre_fetch = max_compute_pre_fetch + self.collective_estimator = collective_estimator + + # Build structures + stable_topological_sort(self.graph) + self.nodes = list(self.graph.nodes) + self.node_idx = {n: i for i, n in enumerate(self.nodes)} + self.node_ancestors: dict[fx.Node, OrderedSet[fx.Node]] = ( + self._collect_node_ancestors() + ) + + # Identify collectives and compute nodes + self.collective_info: dict[fx.Node, CollectiveInfo] = {} + self.unscheduled_collectives: OrderedSet[fx.Node] = OrderedSet() + + # Identify compute nodes early (needed for baseline memory computation) + self.compute_nodes = [n for n in self.nodes if is_compute_node(n)] + self.current_compute_index = 0 + + # Compute baseline memory profile from original schedule + self.original_mem_before_compute_index: list[int] = [] + self.original_peak_memory = self._compute_baseline_memory() + + # Maximum allowed peak memory = baseline + max(absolute, ratio * baseline) + # When both limits are specified, use the more permissive one + memory_increase_bytes = None + if max_memory_increase_gb is not None: + memory_increase_bytes = gb_to_bytes(max_memory_increase_gb) + if max_memory_increase_ratio is not None: + ratio_increase = int(self.original_peak_memory * max_memory_increase_ratio) + memory_increase_bytes = ( + max(memory_increase_bytes, ratio_increase) + if memory_increase_bytes is not None + else ratio_increase + ) + if memory_increase_bytes is None: + memory_increase_bytes = 0 + + self.allowed_peak_memory_bytes = ( + self.original_peak_memory + memory_increase_bytes + ) + + # Track cumulative prefetch memory at each compute index + # When we prefetch a collective at compute index i that will be used at index j, + # it adds memory from i to j, so we need to track this cumulative effect + self.cumulative_prefetch_mem_by_compute_index: list[int] = [ + 0 for _ in range(len(self.compute_nodes)) + ] + + self.memory_tracker = MemoryTracker(self.graph) + + self.wait_to_start: dict[fx.Node, fx.Node] = {} + self._identify_collectives() + self.wasted_compute = 0.0 + + self.compute_index_domination = self._calculate_compute_node_domination_index() + + # Scheduling state + self.potentially_hidden_collectives = ( + self.compute_potential_hidden_collectives() + ) + self.potentially_hidden_waits = self.compute_potential_hidden_waits() + self.in_degree = Counter(user for node in self.nodes for user in node.users) + self.ready: list[tuple[object, fx.Node]] = [] + + for node in self.nodes: + if self.in_degree[node] == 0: + heapq.heappush(self.ready, (self._compute_score(node), node)) + + self.in_flight: dict[fx.Node, CollectiveInfo] = {} # start -> info + self.in_flight_bytes = 0 + self.scheduled: OrderedSet[fx.Node] = OrderedSet() + self.max_compute_pre_fetch = max_compute_pre_fetch + + def _collect_node_ancestors(self) -> dict[fx.Node, OrderedSet[fx.Node]]: + """Collect all ancestors for each node.""" + ancestors: dict[fx.Node, OrderedSet[fx.Node]] = defaultdict(OrderedSet) + for node in self.nodes: + for input_node in node.all_input_nodes: + ancestors[node].add(input_node) + ancestors[node] |= ancestors[input_node] + + return ancestors + + def _compute_baseline_memory(self) -> int: + """ + Simulate the original schedule to compute baseline memory profile. + Returns the peak memory observed during simulation. + """ + baseline_tracker = MemoryTracker(self.graph) + + last_compute_max_memory = 0 + peak_memory = 0 + + for node in self.nodes: + baseline_tracker.schedule_node(node) + current_mem = baseline_tracker.current_memory_bytes + + # Record the max memory between this and previous compute node + last_compute_max_memory = max(last_compute_max_memory, current_mem) + + if is_compute_node(node): + self.original_mem_before_compute_index.append(last_compute_max_memory) + last_compute_max_memory = current_mem + + peak_memory = max(peak_memory, current_mem) + + return peak_memory + + def _prefetch_would_exceed_memory_budget(self, start_node: fx.Node) -> bool: + """ + Check if prefetching this collective would exceed memory budget at ANY compute node + between now and when it's used. + """ + info = self.collective_info[start_node] + size = info.size_bytes + + domination_index = self.compute_index_domination[start_node] + + # If off-path, assume it doesn't increase memory + if domination_index == sys.maxsize: + return False + + # check current mem + if ( + self.memory_tracker.current_memory_bytes + size + > self.allowed_peak_memory_bytes + ): + return True + + start_index = self.current_compute_index + + # then, check future mem + for compute_idx in range(start_index, domination_index): + cumulative_prefetch = self.cumulative_prefetch_mem_by_compute_index[ + compute_idx + ] + + # Check 1: Would cumulative prefetch exceed in-flight limit? + if (cumulative_prefetch + size) > self.max_in_flight_bytes: + return True + + # Check 2: Would total memory (baseline + cumulative prefetch) exceed budget? + baseline_mem = self.original_mem_before_compute_index[compute_idx] + projected = baseline_mem + cumulative_prefetch + size + + if projected > self.allowed_peak_memory_bytes: + return True + + return False + + def _update_cumulative_prefetch_memory( + self, collective: fx.Node, info: CollectiveInfo + ) -> None: + """ + Update cumulative prefetch memory for all compute indices this collective will be live. + """ + domination_index = self.compute_index_domination[collective] + if domination_index == sys.maxsize: + return + + for compute_idx in range(self.current_compute_index, domination_index): + self.cumulative_prefetch_mem_by_compute_index[compute_idx] += ( + info.size_bytes + ) + + def off_compute_path(self, n: fx.Node) -> bool: + """Check if a node is off the compute path (doesn't block any compute).""" + return self.compute_index_domination[n] == sys.maxsize + + def _identify_collectives(self) -> None: + """Identify all collective operations and process groups.""" + self.all_pgs: OrderedSet[str] = OrderedSet() + + for node in self.nodes: + if _schedulable_wait_node(node): + start = node.args[0] + coll_time_ms = estimate_collective_time( + start, custom_runtime_estimation=self.custom_runtime_estimation + ) + + info = CollectiveInfo( + start_node=start, + wait_node=node, + size_bytes=estimate_fx_collective_memory_footprint(start), + estimated_time_ms=coll_time_ms, + exposed_time_ms=coll_time_ms, # Initially fully exposed + ) + self.collective_info[start] = info + self.wait_to_start[node] = start + self.unscheduled_collectives.add(start) + self.all_pgs.add(get_group_name(start)) + + def _calculate_compute_node_domination_index(self) -> dict[fx.Node, int]: + """ + Compute the topological index of the earliest compute node each node dominates. + + Compute nodes are assigned indices based on their topological order (0, 1, 2, ...). + For each node, returns the minimum index of compute nodes it blocks/dominates. + Returns sys.maxsize if the node doesn't block any compute nodes. + """ + compute_node_index: dict[fx.Node, int] = {} + for node in self.graph.nodes: + if is_compute_node(node): + compute_node_index[node] = len(compute_node_index) + + domination_index: dict[fx.Node, int] = {} + for node in reversed(self.graph.nodes): + if node in compute_node_index: + # Compute nodes dominate themselves (return their own index) + domination_index[node] = compute_node_index[node] + else: + domination_index[node] = min( + (domination_index[succ] for succ in node.users), default=sys.maxsize + ) + + return domination_index + + def _align_compute_nodes_runtime_estimations_across_all_distributed_ranks( + self, + ) -> None: + """Align runtime estimations across ranks (compute + collectives).""" + log.info( + "Overlap scheduling: Aligning runtime estimations across all distributed ranks" + ) + + # Benchmark compute nodes + runtime_estimations_keys: list[str | None] = [] + runtime_estimations: list[float] = [] + compute_key_count = 0 + + # Also collect analytical estimations for logging + runtime_estimations_analytical: list[float] = [] + + for n in self.compute_nodes: + val, key = benchmark_node_with_cache_key(n, self.custom_runtime_estimation) + + # Analytical estimations + val_analytical = estimate_runtime_analytical(n) + runtime_estimations_analytical.append(val_analytical) + + runtime_estimations.append(val) + runtime_estimations_keys.append(key) + compute_key_count += 1 + + # Log compute estimations + from torch._inductor.fx_passes.node_runtime_estimation import ( + _log_compute_estimations, + ) + + _log_compute_estimations( + self.compute_nodes, + runtime_estimations, + runtime_estimations_analytical, + ) + + # Benchmark collectives if enabled (only CUDA events - others are deterministic) + # Skip if custom estimation is provided for collectives + collective_nodes: list[fx.Node] = [] + benchmarked_collective_nodes: list[ + fx.Node + ] = [] # Track which were actually benchmarked + if self.collective_estimator == "benchmark": + from torch._inductor.fx_passes.node_runtime_estimation import ( + benchmark_collective_with_cuda_events, + ) + + collective_nodes = [ + info.start_node for info in self.collective_info.values() + ] + + # Benchmark CUDA events (non-deterministic, needs alignment) + # Skip collectives with custom estimation + for n in collective_nodes: + if ( + get_custom_estimation(n, self.custom_runtime_estimation, None) + is not None + ): + continue + + # Benchmark actual size + cuda_val, cuda_key = benchmark_collective_with_cuda_events(n, nruns=5) + if cuda_val is not None: + runtime_estimations.append(cuda_val) + runtime_estimations_keys.append(cuda_key) + benchmarked_collective_nodes.append(n) + + # Single all_gather and compute medians + import torch.distributed as dist + from torch._subclasses.fake_tensor import unset_fake_temporarily + from torch.distributed.distributed_c10d import _get_default_group + + world_size = dist.get_world_size() + pg = _get_default_group() + + with unset_fake_temporarily(): + gathered_runtime_estimations: list[list[float]] = [ + [] for _ in range(world_size) + ] + dist.all_gather_object( + gathered_runtime_estimations, runtime_estimations, pg + ) + median_runtime_estimations = torch.median( + torch.tensor(gathered_runtime_estimations), dim=0 + ).values.tolist() + + # Cache medians + collective_keys = [] + collective_medians = [] + for idx, (key, median_runtime_estimation) in enumerate( + zip(runtime_estimations_keys, median_runtime_estimations) + ): + if key is None: + continue + if idx < compute_key_count: + # Compute node + set_cached_node_time(key, median_runtime_estimation) + else: + # Collective CUDA event benchmark + from torch._inductor.fx_passes.node_runtime_estimation import ( + set_cached_runtime, + ) + + set_cached_runtime(key, median_runtime_estimation) + + # Update CollectiveInfo with aligned benchmark + coll_idx = idx - compute_key_count + coll_node = benchmarked_collective_nodes[coll_idx] + info = self.collective_info[coll_node] + info.estimated_time_ms = median_runtime_estimation + info.exposed_time_ms = median_runtime_estimation + + collective_keys.append(key) + collective_medians.append(median_runtime_estimation) + + # Log benchmarks with analytical comparisons + if collective_keys: + from torch._inductor.fx_passes.node_runtime_estimation import ( + _log_collective_benchmarks, + ) + + _log_collective_benchmarks( + benchmarked_collective_nodes, + collective_keys, + collective_medians, + world_size, + ) + + log.info("Overlap scheduling: Runtime estimations aligned") + + def run(self) -> torch.fx.GraphModule: + """Run the scheduling algorithm.""" + # All ranks must make identical decisions on overlap reordering, + # Thus we must have identical runtime estimations across ranks. + # For now we do benchmarking only for compute nodes. + self._align_compute_nodes_runtime_estimations_across_all_distributed_ranks() + + while self.ready: + if self._should_force_wait_for_memory(): + self._force_oldest_wait() + continue + + _, node = heapq.heappop(self.ready) + + # we don't always remove nodes from the heap when we schedule them + if node in self.scheduled: + continue + + if node.op == "placeholder": + self._schedule(node) + elif node in self.collective_info: + self._handle_collective_start(node) + elif _schedulable_wait_node(node): + self._handle_wait(node) + else: + self._handle_compute_or_other(node) + + self._reorder_graph() + + if self.collective_bucketing: + self._bucket_collectives() + elif self.insert_overlap_deps: + # If not bucketing, add effect tokens to preserve hiding dependencies + self._add_effect_tokens_for_overlap() + + return self.gm + + def _add_effect_tokens_for_overlap(self) -> None: + """ + Add effect tokens to preserve hiding dependency relationships when not bucketing. + + This ensures that communication-compute overlap is preserved through effect tokens + when overlap preserving bucketing is not enabled. + """ + from torch._inductor.fx_passes.control_dependencies import ( + preserve_node_ordering, + ) + + # Collect hiding dependencies: hiding_node -> collective_start, wait -> hiding_node + additional_deps: dict[fx.Node, OrderedSet[fx.Node]] = defaultdict(OrderedSet) + + for start_node, info in self.collective_info.items(): + if info.is_exposed: + continue + for hn in info.hiding_nodes: + # Compute depends on collective start (compute must wait for collective to start) + additional_deps[hn].add(start_node) + # Wait depends on compute (wait must wait for compute to finish) + additional_deps[info.wait_node].add(hn) + + # Apply effect tokens to preserve these dependencies + if additional_deps: + preserve_node_ordering(self.graph, additional_deps) + + def get_non_collective_runtime_estimate(self, node: fx.Node) -> float | None: + """Get runtime estimation for a node in ms. Returns None if no estimation is available.""" + + # TODO: non custom estimation of aten nodes, potentially requires notion of fusion group + if is_compute_node(node): + return benchmark_node(node, self.custom_runtime_estimation) + + if self.custom_runtime_estimation is None: + return None + + return self.custom_runtime_estimation(node, None) + + def _reduce_exposed_time_of_in_flight_collectives( + self, + node: fx.Node, + available_compute: float, + exclude_pg: str | None = None, + ) -> dict[str, float]: + """ + Reduce exposed time of in-flight collectives using available compute time. + + Collectives on different process groups can overlap simultaneously with the same + compute, so we track remaining time separately per PG. + """ + # Initialize all PGs with full available compute (except excluded) + remaining_time_per_pg: dict[str, float] = { + pg: available_compute for pg in self.all_pgs if pg != exclude_pg + } + + for start_node, info in self.in_flight.items(): + if info.exposed_time_ms == 0: + continue + + pg_name = get_group_name(start_node) + if pg_name == exclude_pg: + continue + + pg_remaining = remaining_time_per_pg[pg_name] + if pg_remaining <= 0: + continue + + overlap_amount = min(info.exposed_time_ms, pg_remaining) + info.exposed_time_ms -= overlap_amount + remaining_time_per_pg[pg_name] -= overlap_amount + info.hiding_nodes.add(node) + + return remaining_time_per_pg + + def _handle_compute_or_other(self, node: fx.Node) -> None: + """Handle scheduling compute or other nodes and attempt to overlap with collectives.""" + runtime_estimate = self.get_non_collective_runtime_estimate(node) + + # TODO: we could consider skipping overlapping for overlapable, unary chains to collectives. + # using these nodes for overlap prevents bucketing. potentially if chain time < latency + if runtime_estimate is None: + assert not is_compute_node(node), "should have estimate for compute nodes" + self._schedule(node) + return + + available_compute = runtime_estimate * self.compute_overlap_multipler + + # First, reduce exposed time of in-flight collectives (per PG) + remaining_time_per_pg = self._reduce_exposed_time_of_in_flight_collectives( + node, available_compute + ) + # Then, schedule new collectives for overlap + self._schedule_collectives_for_overlap(node, remaining_time_per_pg) + self._schedule(node) + + if is_compute_node(node): + self.current_compute_index += 1 + + def _schedule(self, node: fx.Node) -> None: + """Schedule a node.""" + assert node not in self.scheduled + assert all(n in self.scheduled for n in node.all_input_nodes) + self.scheduled.add(node) + self.memory_tracker.schedule_node(node) + + log.debug( + "Scheduled node %s: current_memory=%d bytes, total_scheduled=%d", + node.name, + self.memory_tracker.get_current_memory_bytes(), + len(self.scheduled), + ) + + for user in node.users: + self.in_degree[user] -= 1 + if self.in_degree[user] == 0: + heapq.heappush(self.ready, (self._compute_score(user), user)) + + def _compute_score(self, node: fx.Node) -> object: + """Compute priority score for a node""" + + if _schedulable_wait_node(node): + info = self.collective_info[self.wait_to_start[node]] + # defer waits locally if they are exposed. + compute_local_priority = int(info.is_exposed) + else: + # if we're scheduling this collective via its queue, then it was not + # pre-fetched. we might as well maximize overlap for the + # local, non-mm nodes prior to the next compute node. + if self.in_overlappable_collective_unary_chain(node): + compute_local_priority = -1 + else: + compute_local_priority = 0 + + return ( + self.compute_index_domination[node], # what index compute it blocks + compute_local_priority, # collective_start=-1, wait=1, or neither=0 + self.node_idx[node], # Original order for stability + ) + + @staticmethod + def is_cheap_fn(node: fx.Node) -> bool: + return getattr(node.target, "is_view", False) or torch.Tag.pointwise in getattr( + node.target, "tags", () + ) + + def in_overlappable_collective_unary_chain(self, curr: fx.Node) -> bool: + while True: + if len(curr.users) != 1: + return False + + user = next(iter(curr.users)) + if len(user.all_input_nodes) != 1: + return False + + if user in self.unscheduled_collectives: + return True + + if not self.is_cheap_fn(user): + return False + + curr = user + + return False + + def _should_force_wait_for_memory(self) -> bool: + """Check if we need to force a wait due to memory pressure""" + if not self.in_flight: + return False + + return self.in_flight_bytes >= self.max_in_flight_bytes + + def _force_oldest_wait(self) -> None: + """Schedule the oldest in flight wait""" + self._handle_wait(self._get_oldest_wait()) + + def _handle_collective_start(self, node: fx.Node) -> None: + """Handle scheduling a collective start.""" + info = self.collective_info[node] + + if self.should_assume_bucketed(node): + latency = estimate_collective_time( + node, 0, custom_runtime_estimation=self.custom_runtime_estimation + ) + assert latency <= info.exposed_time_ms + info.exposed_time_ms = info.exposed_time_ms - latency + + self.in_flight[node] = info + self.in_flight_bytes += info.size_bytes + self.unscheduled_collectives.discard(node) + self._schedule(node) + + def _handle_wait(self, node: fx.Node) -> None: + """Handle scheduling a wait.""" + assert node in self.wait_to_start + coll_start = self.wait_to_start[node] + assert coll_start in self.in_flight + + # Scheduling a wait of a collective also forces the wait + # of every node enqueued prior to the collective on the + # same process group + group_name = get_group_name(coll_start) + to_schedule: list[fx.Node] = [] + for in_flight_coll in self.in_flight: + if in_flight_coll == coll_start: + break + if get_group_name(in_flight_coll) == group_name: + to_schedule.append(in_flight_coll) + + for coll_to_schedule in to_schedule: + self._handle_wait(self.collective_info[coll_to_schedule].wait_node) + + # If we are waiting on an exposed collective, use this time to + # overlap on other PGs. + info = self.collective_info[coll_start] + if info.exposed_time_ms > 0: + exposed_time = info.exposed_time_ms + exclude_pg = group_name + + remaining_time_per_pg = self._reduce_exposed_time_of_in_flight_collectives( + node, exposed_time, exclude_pg=exclude_pg + ) + self._schedule_collectives_for_overlap( + node, remaining_time_per_pg, exclude_pg=exclude_pg + ) + + self.in_flight_bytes -= self.in_flight[coll_start].size_bytes + del self.in_flight[coll_start] + self._schedule(node) + + def _schedule_collectives_for_overlap( + self, + overlap_node: fx.Node, + remaining_time_per_pg: dict[str, float], + exclude_pg: str | None = None, + ) -> None: + """Opportunistically schedule collectives that can be hidden by available overlap time.""" + if not remaining_time_per_pg or all( + t <= 0 for t in remaining_time_per_pg.values() + ): + return + + overlap_node_ancestors = self.node_ancestors[overlap_node] + + # Compile candidates - limit by distance to bound compile time + candidates = [] + for i, collective in enumerate(self.unscheduled_collectives): + if i > self.max_node_distance: + break + + pg_name = get_group_name(collective) + if pg_name == exclude_pg: + continue + + if ( + not self.off_compute_path(collective) + and self.compute_index_domination[collective] + - self.current_compute_index + > self.max_compute_pre_fetch + ): + continue + + candidates.append(collective) + + # Sort candidates prioritizing: + # 1. reduce_scatter operations (reduce memory pressure) + # 2. Earlier domination index + # 3. Original order for stability + candidates.sort( + key=lambda n: ( + not is_reduce_scatter(n), # reduce_scatter first + self.compute_index_domination[n], + self.node_idx[n], + ), + ) + + for collective in candidates: + pg_name = get_group_name(collective) + pg_available_time = remaining_time_per_pg[pg_name] + + if pg_available_time <= 0: + continue + + why = WhyNoOverlap(overlap_node, collective) + info = self.collective_info[collective] + + if ( + collective in overlap_node_ancestors + or overlap_node in self.node_ancestors[collective] + ): + why("dependency conflict") + continue + + # Check if prefetching would exceed memory budget + if self._prefetch_would_exceed_memory_budget(collective): + why("prefetch would exceed memory budget") + continue + + # Try to free memory by forcing hidden waits + while ( + self.in_flight + and (self.max_in_flight_bytes - self.in_flight_bytes) < info.size_bytes + and self._wait_is_hidden(self._get_oldest_wait(), overlap_node) + ): + self._force_oldest_wait() + + if (self.max_in_flight_bytes - self.in_flight_bytes) < info.size_bytes: + why("in-flight memory limit") + continue + + # Check if we can reach this collective without scheduling compute, other collectives, or waits + path = self._find_schedulable_path(collective, overlap_node, why) + if path is None: + continue + + log.debug( + "Overlapping collective %s with node %s: coll_domination=%d, current_depth=%d", + collective.name, + overlap_node.name, + self.compute_index_domination[collective], + self.current_compute_index, + ) + + # TODO: We previously tracked path compute time and added it back to available + # overlap time. With per-PG tracking this is complex: if there were in-flight + # collectives on one PG but not another, we can't add path time back to the PG + # that wasn't in-flight + + # Schedule path and collective + self._schedule_path_to_collective(path, overlap_node) + self._handle_collective_start(collective) + self._update_cumulative_prefetch_memory(collective, info) + + # Update exposed time for this collective + overlap_amount = min(pg_available_time, info.exposed_time_ms) + info.exposed_time_ms -= overlap_amount + info.hiding_nodes.add(overlap_node) + + # Update available time for this PG + remaining_time_per_pg[pg_name] -= overlap_amount + + if sum(remaining_time_per_pg.values()) == 0: + break + + if remaining_time_per_pg: + self.wasted_compute += min(remaining_time_per_pg.values()) + + def _find_schedulable_path( + self, target: fx.Node, curr_overlap_node: fx.Node | None, why: WhyNoOverlap + ) -> OrderedSet[fx.Node] | None: + """Find path to target by collecting unscheduled dependencies.""" + # Get unscheduled ancestors + unscheduled_ancestors = self.node_ancestors[target] - self.scheduled + + # only schedule non distributed, non compute nodes + for node in unscheduled_ancestors: + if is_compute_node(node): + why("path blocked by compute node %s", node.name) + return None + + if node in self.unscheduled_collectives: + why("path blocked by unscheduled collective %s", node.name) + return None + + # if we schedule a wait tensor whose start collective is hidden by the + # current compute node we are scheduling, then we are effectively exposing it. + # similarly, dont schedule a wait of a collective that could be otherwise hidden, + # thus forcing it to be exposed. + # however, if it is already hidden it's fine to schedule it + if _schedulable_wait_node(node): + info = self.collective_info[self.wait_to_start[node]] + # Allow if fully hidden by other nodes + if not info.is_exposed and curr_overlap_node not in info.hiding_nodes: + continue + + why( + "path blocked by wait node %s (exposed=%s, hiding_nodes=%s)", + node.name, + info.is_exposed, + curr_overlap_node in info.hiding_nodes, + ) + + # Skip c10 ops and dtensor shard ops - they should be scheduled via main loop + target_str = str(node.target) + if "c10" in target_str or "_dtensor" in target_str: + log.debug( + "Skipping c10/dtensor op %s in path to collective", + node.name, + ) + return None + + return unscheduled_ancestors + + def should_assume_bucketed(self, node: fx.Node) -> bool: + """ + Check if there's an in-flight collective that can be bucketed with the given node. If so, assume they will bucket. + This is a optimistic heuristic to account for latency reduction with bucketing. The two nodes may not get bucketed. + """ + if not torch._inductor.config.test_configs.assume_bucketing_reduces_latency: + return False + + key = bucket_key(node, mode="custom_ops_multidtype") + if key is None: + return False + + for in_flight_coll in self.in_flight: + if bucket_key(in_flight_coll, mode="custom_ops_multidtype") == key: + return True + + return False + + def _get_oldest_wait(self) -> fx.Node: + oldest_start = next(iter(self.in_flight)) + return self.collective_info[oldest_start].wait_node + + def _wait_is_hidden( + self, wait_node: fx.Node, overlap_node: fx.Node | None = None + ) -> bool: + assert is_wait_tensor(wait_node) + info = self.collective_info[self.wait_to_start[wait_node]] + return not info.is_exposed and overlap_node not in info.hiding_nodes + + def _schedule_path_to_collective( + self, path: OrderedSet[fx.Node], curr_overlap_node: fx.Node + ) -> None: + """Schedule all nodes needed to reach a collective.""" + + assert all(n not in self.scheduled for n in path) + for node in sorted(path, key=lambda n: self.node_idx[n]): + assert not (is_compute_node(node) or node in self.unscheduled_collectives) + if _schedulable_wait_node(node): + # When we schedule wait tensors, we also force realization of all + # collectives enqueued prior to their corresponding collective. + # It's possible the scheduling of one wait tensor here has forced + # another in the path. If so, skip scheduling it. + if node in self.scheduled: + continue + + info = self.collective_info[self.wait_to_start[node]] + assert curr_overlap_node not in info.hiding_nodes + self._handle_wait(node) + continue + + self._schedule(node) + + def reorder_graph(self) -> None: + output_node = self.graph.output_node() + for node in self.scheduled: + if node.op == "placeholder": + continue + output_node.prepend(node) + self.graph.lint() + + def _reorder_graph(self) -> None: + """Reorder graph based on schedule.""" + exposed = [ + c + for c in self.collective_info.values() + if c.exposed_time_ms == c.estimated_time_ms + ] + + potentially_hidden_collectives = self.compute_potential_hidden_collectives() + bad_exposed = [ + c for c in exposed if c.start_node in potentially_hidden_collectives + ] + + # Compute total exposed and potential exposed time + total_exposed = sum(c.exposed_time_ms for c in self.collective_info.values()) + hideable_exposed_ms = sum( + self.collective_info[c].exposed_time_ms + for c in potentially_hidden_collectives + ) + total_potential_exposed = sum( + c.estimated_time_ms for c in self.collective_info.values() + ) + + counters["inductor"]["overlap_scheduling_exposed"] += len(exposed) + counters["inductor"]["overlap_scheduling_bad_exposed"] += len(bad_exposed) + counters["inductor"]["overlap_scheduling_potentially_hidden"] += len( + potentially_hidden_collectives + ) + counters["inductor"]["overlap_original_mem"] = self.original_peak_memory + counters["inductor"]["rescheduled_mem"] = self.memory_tracker.peak_memory + + log.info( + "Overlap scheduling results: exposed=%d, bad_exposed=%d, potentially_hidden=%d, " + "original_peak_memory=%d bytes, rescheduled_peak_memory=%d bytes, " + "total_exposed_ms=%.2f, hideable_exposed_ms=%.2f, total_potential_exposed_ms=%.2f, " + "wasted_compute_ms=%.2f", + len(exposed), + len(bad_exposed), + len(potentially_hidden_collectives), + self.original_peak_memory, + self.memory_tracker.peak_memory, + total_exposed, + hideable_exposed_ms, + total_potential_exposed, + self.wasted_compute, + ) + + self.reorder_graph() + + def _bucket_collectives(self) -> None: + from torch._inductor.fx_passes.overlap_preserving_bucketer import ( + OverlapPreservingBucketer, + ) + + bucketer = OverlapPreservingBucketer( + graph=self.graph, + collective_info=self.collective_info, + scheduled=self.scheduled, + max_bucket_memory_gb=2.0, # Could make this configurable + max_coll_distance=self.max_node_distance, + insert_overlap_deps=self.insert_overlap_deps, + ) + bucketer.bucket_collectives() + + def compute_potential_hidden_nodes( + self, nodes_to_check: Iterable[fx.Node] + ) -> dict[fx.Node, fx.Node]: + """ + Returns a dict containing a mapping of nodes which could potentially be hidden to their hiding node + """ + + def could_be_hidden(start: fx.Node) -> fx.Node | None: + for compute_node in self.compute_nodes: + if ( + start not in self.node_ancestors[compute_node] + and compute_node not in self.node_ancestors[start] + ): + return compute_node + + return None + + # TODO: We could potentially limit compute nodes per overlap time, + # today, this is optimistic, and just serves to avoid deferring + # collectives/waits that have no possible overlap as well as for analysis of how + # successfully we hid compute + potentially_hidden = {} + for node in nodes_to_check: + if mm := could_be_hidden(node): + potentially_hidden[node] = mm + + return potentially_hidden + + def compute_potential_hidden_collectives(self) -> dict[fx.Node, fx.Node]: + """Compute which collective operations could be hidden by compute.""" + return self.compute_potential_hidden_nodes(self.collective_info.keys()) + + def compute_potential_hidden_waits(self) -> dict[fx.Node, fx.Node]: + """Compute which wait operations could be hidden by compte.""" + wait_nodes = [info.wait_node for info in self.collective_info.values()] + return self.compute_potential_hidden_nodes(wait_nodes) + + +def schedule_overlap_bucketing( + gm: torch.fx.GraphModule, + max_in_flight_gb: float = 5, + max_compute_pre_fetch: int = 200, + collective_bucketing: bool = False, + insert_overlap_deps: bool = False, + compute_overlap_multipler: float = 1.0, + max_coll_distance: int = 200, + custom_runtime_estimation: Callable[[fx.Node, int | None], float | None] + | None = None, + collective_estimator: Literal["analytical", "benchmark"] = "analytical", + max_memory_increase_gb: float | None = 1.0, + max_memory_increase_ratio: float | None = 0.05, +) -> torch.fx.GraphModule: + """Schedule nodes to maximize compute-collective overlap. + + Args: + gm: Input graph module to optimize. + max_in_flight_gb: Maximum GB of concurrent collective data. Too much in flight memory + can cause memory fragmentation within the CUDA Caching Allocator. + max_compute_pre_fetch: Maximum mm nodes to pre fetch. Note: should already be limited by max_in_flight_gb and + max_memory_increase_gb + collective_bucketing: Enable overlap-preserving collective bucketing. + insert_overlap_deps: Insert overlap dependencies using control deps operator. This should only be used if + compiling with inductor, or for subsequent passes before removing the ops prior to execution. + compute_overlap_multipler: Scale factor for compute time used to hide collectives. This can be used + to address over or under aggressive overlapping. + max_coll_distance: Maximum pre fetch or bucketing candidates. Mainly intended for compile time + custom_runtime_estimation: Custom runtime estimation function that estimates runtime in ms for an fx node. + If None, uses default estimations. This is currently limited to collectives and compute nodes. + collective_estimator: Method for estimating collective runtime. "analytical" uses bandwidth formulas, + "benchmark" uses CUDA events with power-of-2 rounding and interpolation. + max_memory_increase_gb: Maximum GB increase above baseline memory (absolute cap). If None, no absolute limit. + max_memory_increase_ratio: Maximum increase as ratio of baseline peak memory. If None, no ratio limit. + Uses minimum of absolute and ratio limits when both are specified. + """ + return OverlapScheduler( + gm, + compute_overlap_multipler=compute_overlap_multipler, + max_in_flight_gb=max_in_flight_gb, + max_coll_distance=max_coll_distance, + max_compute_pre_fetch=max_compute_pre_fetch, + custom_runtime_estimation=custom_runtime_estimation, + collective_bucketing=collective_bucketing, + insert_overlap_deps=insert_overlap_deps, + collective_estimator=collective_estimator, + max_memory_increase_gb=max_memory_increase_gb, + max_memory_increase_ratio=max_memory_increase_ratio, + ).run() + + +def schedule_overlap_bucketing_from_inductor_configs( + gm: torch.fx.GraphModule, +) -> torch.fx.GraphModule: + """Schedule nodes to maximize compute-collective overlap using inductor configs. + + Reads configuration from torch._inductor.config.aten_distributed_optimizations + and calls schedule_overlap_bucketing with those settings. + """ + from torch._inductor import config + + dist_opts = config.aten_distributed_optimizations + + kwargs: dict[str, object] = {} + + config_keys = ( + "collective_bucketing", + "max_compute_pre_fetch", + "custom_runtime_estimation", + "insert_overlap_deps", + "collective_estimator", + "max_memory_increase_gb", + "max_memory_increase_ratio", + "compute_overlap_multipler", + "max_in_flight_gb", + "max_coll_distance", + ) + for key in config_keys: + if (val := getattr(dist_opts, key, None)) is not None: + kwargs[key] = val + + return schedule_overlap_bucketing(gm, **kwargs) # type: ignore[arg-type] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/pad_mm.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/pad_mm.py new file mode 100644 index 0000000000000000000000000000000000000000..556b32562dcd5533e526aa02c273ac7aca87b2e4 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/pad_mm.py @@ -0,0 +1,945 @@ +import functools +import itertools +import operator +import typing +from collections.abc import Callable, Sequence +from typing import Any + +import torch +import torch._inductor.runtime.runtime_utils +from torch import Tensor +from torch._dynamo.utils import counters, dynamo_timed +from torch._inductor import utils +from torch._inductor.autoheuristic.autoheuristic import ( + AHContext, + AutoHeuristic, + LocalFeedback, +) +from torch._inductor.autoheuristic.autoheuristic_utils import ( + context_add_strides, + context_add_using_tf32, + pad_mm_operations, + pad_mm_precondition, +) +from torch._subclasses.fake_tensor import FakeTensor +from torch.utils._mode_utils import no_dispatch + +from ...utils._triton import has_triton +from ..pattern_matcher import ( + fwd_only, + gen_register_replacement, + joint_fwd_bwd, + Match, + ReplaceFn, + SearchFn, +) + + +aten = torch.ops.aten + + +# This flag is only used for testing purpose. +# Changing it to True will ignore comparing do_bench times +# between original pattern and padded one. +_skip_do_bench_times = False + + +def fetch_fake_tensors(match: Match, kwarg_names: Sequence[str]) -> list[Tensor]: + kwargs = match.kwargs + return [kwargs[name].meta["val"] for name in kwarg_names] + + +def unwrap_fake_args( + *arg_names: str, +) -> Callable[[Callable[..., Any]], Callable[[Match], Any]]: + def decorator(func: Callable[..., Any]) -> Callable[[Match], Any]: + def wrapper(match: Match) -> Any: + fake_tensors = fetch_fake_tensors(match, arg_names) + return func(*fake_tensors) + + return wrapper + + return decorator + + +def get_alignment_size(x: Tensor) -> int: + return get_alignment_size_dtype(x.dtype) + + +def get_alignment_size_dtype(dtype: torch.dtype) -> int: + if dtype == torch.float16 or dtype == torch.half or dtype == torch.bfloat16: + return 8 + elif dtype == torch.float32 or dtype == torch.float: + return 4 + else: + return 0 + + +def check_device(a: Tensor, b: Tensor) -> bool: + return (a.is_cuda and b.is_cuda) or (a.is_xpu and b.is_xpu) + + +def check_dtype(a: Tensor, b: Tensor) -> bool: + return a.is_floating_point() and b.is_floating_point() + + +def should_pad_common(mat1: Tensor, mat2: Tensor, input: Tensor | None = None) -> bool: + # It's fine we have symbolic shapes or strides as long as they + # have hints. Later, we will make sure we only pad non-symbolic dimensions. + def valid_shape_and_stride(t: Tensor | None) -> bool: + if t is None: + return True + + symbolic_cnt = 0 + for x in t.size(): + if isinstance(x, int): + continue + elif utils.is_symbolic(x): + # pyrefly: ignore [missing-attribute] + if not x.node.has_hint(): + return False + symbolic_cnt += 1 + else: + return False + # filter out cases where all dimensions are symbolic + if symbolic_cnt == len(t.size()): + return False + return all( + # pyrefly: ignore [missing-attribute] + isinstance(x, int) or (utils.is_symbolic(x) and x.node.has_hint()) + for x in t.stride() + ) + + return ( + torch._inductor.config.shape_padding + and check_device(mat1, mat2) + and check_dtype(mat1, mat2) + and all(valid_shape_and_stride(t) for t in (mat1, mat2, input)) + ) + + +def get_padded_length(x: int | torch.SymInt, alignment_size: int) -> int: + # we don't pad x if it is symbolic + if isinstance(x, torch.SymInt) or alignment_size == 0 or x % alignment_size == 0: + return 0 + + # ignore dim that can be squeezed away + if x == 1: + return 0 + + return int((x // alignment_size + 1) * alignment_size) - x + + +def pad_dim(x: Tensor, padded_length: int, dim: int) -> Tensor: + if padded_length == 0: + return x + pad = x.new_zeros(*x.shape[:dim], padded_length, *x.shape[dim + 1 :]) + return torch.cat([x, pad], dim=dim) + + +def addmm_pattern( + input: Tensor, mat1: Tensor, mat2: Tensor, beta: float, alpha: float +) -> Tensor: + return aten.addmm(input, mat1, mat2, beta=beta, alpha=alpha) + + +def should_pad_addmm(match: Match) -> bool: + mat1, mat2, input = fetch_fake_tensors(match, ("mat1", "mat2", "input")) + return should_pad_common(mat1, mat2, input) and should_pad_bench( + match, mat1, mat2, torch.ops.aten.addmm, input=input + ) + + +def pad_addmm( + input: Tensor | None, + mat1: Tensor, + mat2: Tensor, + m_padded_length: int, + k_padded_length: int, + n_padded_length: int, + beta: float = 1.0, + alpha: float = 1.0, + mat1_pre_padded: bool = False, + mat2_pre_padded: bool = False, +) -> Tensor: + # for paddings, dim order is reversed for some reasons + # and for every dim, we need to specify left and right padding + if not mat1_pre_padded: + mat1 = pad_mat1( + mat1, m_padded_length=m_padded_length, k_padded_length=k_padded_length + ) + if not mat2_pre_padded: + mat2 = pad_mat2( + mat2, k_padded_length=k_padded_length, n_padded_length=n_padded_length + ) + + # the add broadcasts, so we only pad if the dimension != 1 + if input is not None: + if n_padded_length != 0: + if input.dim() == 2 and input.shape[1] != 1: + input = pad_dim(input, n_padded_length, 1) + elif input.dim() == 1 and input.shape[0] != 1: + input = pad_dim(input, n_padded_length, 0) + if m_padded_length != 0 and input.dim() == 2 and input.shape[0] != 1: + input = pad_dim(input, m_padded_length, 0) + + res = aten.addmm(input, mat1, mat2, beta=beta, alpha=alpha) + + if m_padded_length != 0: + res = res[:-m_padded_length, :] + if n_padded_length != 0: + res = res[:, :-n_padded_length] + return res + + +def addmm_replace( + input: Tensor | None, + mat1: Tensor, + mat2: Tensor, + beta: float = 1.0, + alpha: float = 1.0, +) -> Tensor: + k_padded_length = get_padded_length(mat1.shape[1], get_alignment_size(mat1)) + n_padded_length = get_padded_length(mat2.shape[1], get_alignment_size(mat2)) + m_padded_length = get_padded_length(mat1.shape[0], get_alignment_size(mat1)) + return pad_addmm( + input, + mat1, + mat2, + m_padded_length, + k_padded_length, + n_padded_length, + beta, + alpha, + ) + + +def is_mm_compute_bound(M: int, K: int, N: int, dtype: torch.dtype) -> bool: + denominator = M * K + N * K + M * N + if denominator == 0: + return False + arithmetic_intensity = (M * N * K) / denominator + + # we have experienced some large perf hits in this case, even in bandwidth bound regimes + if ( + dtype is torch.bfloat16 + and K > M + and K > N + and (torch.xpu.is_available() or torch.cuda.get_device_capability() < (9, 0)) + ): # doesn't repro on h100s: + return True + + # Fails with AMD + try: + machine_balance = ( + 1000 * utils.get_device_tflops(dtype) + ) / utils.get_gpu_dram_gbps() + except Exception: + return True + + # dram_gbps might be underestimating bandwidth because of cache. + # if we estimate machine balance too low we might miss some speedups, + # if we estimate too high there will be unnecessary compilation time increase. + # TODO - finetune coefficient here. As a reference point, Triton mm model assumes + # 80% of reads are in cache and cache is 4x faster than dram_gbps + machine_balance = machine_balance * 0.5 + + return arithmetic_intensity > machine_balance + + +@functools.cache +def get_pad_cache() -> torch._inductor.codecache.LocalCache: + return torch._inductor.codecache.LocalCache() + + +def get_cached_should_pad(key: str) -> bool: + return get_pad_cache().lookup(key) # type: ignore[return-value] + + +def set_cached_should_pad(key: str, value: bool) -> None: + return get_pad_cache().set_value(key, value=value) + + +def get_cached_base_mm_benchmark_time(key: str) -> float: + return get_pad_cache().lookup(key) # type: ignore[return-value] + + +def set_cached_base_mm_benchmark_time(key: str, value: float) -> None: + return get_pad_cache().set_value(key, value=value) + + +def should_pad_bench_key( + match: Match, + mat1: Tensor, + mat2: Tensor, + op: torch._ops.OpOverloadPacket, + input: Tensor | None = None, + is_base_time_key: bool = False, +) -> str: + def tensor_key(t: Tensor) -> tuple[torch.Size, tuple[int, ...], torch.dtype]: + return (t.shape, t.stride(), t.dtype) + + tf32_key = ( + None + if mat1.dtype != torch.float32 + else torch.backends.cuda.matmul.allow_tf32 or torch.backends.mkldnn.allow_tf32 + ) + + def fmt_pad(name: str) -> str | None: + if is_base_time_key: + return None + return f"exclude_pad:{should_exclude_padding_time(match, name)}" + + key = ( + tensor_key(mat1), + tensor_key(mat2), + fmt_pad("mat1"), + fmt_pad("mat2"), + op, + input if input is None else tensor_key(input), + tf32_key, + ) + + key = str(key) + if is_base_time_key: + key = f"base mm time: {key}" + return key + + +def get_non_view_def(node: torch.fx.Node) -> torch.fx.Node: + if node.op is operator.getitem: + return get_non_view_def(node.args[0]) # type: ignore[arg-type] + + if ( + node.op == "call_function" + and isinstance(node.target, torch._ops.OpOverload) + and utils.is_view(node.target) + ): + return get_non_view_def(node.all_input_nodes[0]) + + return node + + +def should_exclude_padding_time(match: Match, arg_name: str) -> bool: + node_def = get_non_view_def(match.kwargs[arg_name]) + + # constant padding converts tensors to contiguous so even if the input tensor + # can be planned layout transform is not free. TODO - way to pad and preserve layout ? + if not fetch_fake_tensors(match, (arg_name,))[0].is_contiguous(): + return False + + # TODO - see issue https://github.com/pytorch/pytorch/issues/128889 + # We would only able to completely plan these out if we were only doing + # first dimension padding. non-first we would still need a copy + # because these outputs are fixed dense. + cannot_plan_output = [ + aten.mm.default, + aten.convolution.default, + aten.convolution_backward.default, + aten.bmm.default, + aten.addmm.default, + aten._scaled_dot_product_flash_attention.default, + aten._scaled_dot_product_efficient_attention.default, + ] + + if node_def.target in cannot_plan_output: + return False + + if ( + node_def.target is aten.cat.default + and len(node_def.all_input_nodes) + > torch._inductor.config.max_pointwise_cat_inputs + ): + return False + + # optimistically assume we should be able to memory plan away + # all non inputs + return node_def.op != "placeholder" + + +def should_pad(key: str, ori_time: float, pad_time: float) -> bool: + multiplier = 1.1 + # Shape padding introduces additional memory ops. Based on microbenchmarks, 1.1x represents a reasonable + # tradeoff between performance improvement from shape padding and overhead from additional memory ops + # TODO: Build a learned model which would be better than this heuristic + if "shape_padding_multiplier" in torch._inductor.config.post_grad_fusion_options: + multiplier = torch._inductor.config.post_grad_fusion_options[ + "shape_padding_multiplier" + ].get("value", 1.1) + counters["inductor"]["shape_padding_multiplier"] += 1 + should_pad = _skip_do_bench_times or ori_time > pad_time * multiplier + set_cached_should_pad(key, should_pad) + return should_pad + + +def should_pad_mm_bf16(dtype: torch.dtype, M: int, N: int, K: int) -> bool: + # always force pad for mm with bf16 when the following are satisfied to avoid perf regression + large_k_threshold_to_pad = torch._inductor.config.post_grad_fusion_options[ + "pad_aten_mm_pass" + ].get("k_threshold_to_pad", 8388608) + if ( + dtype is torch.bfloat16 + and K > M + and K > N + and N % 2 == 1 + and K >= large_k_threshold_to_pad + and (torch.xpu.is_available() or torch.cuda.get_device_capability() < (9, 0)) + ): # doesn't repro on h100s: + return True + return False + + +def should_pad_bench(*args: Any, **kwargs: Any) -> bool: + with dynamo_timed( + "pad_mm_benchmark", + log_pt2_compile_event=False, + dynamo_compile_column_us="compile_time_autotune_time_us", + ): + return _should_pad_bench(*args, **kwargs) + + +def get_do_bench() -> Callable[[Callable[[], Any]], float]: + with dynamo_timed("pad_mm_benchmark_get_do_bench"): + return functools.partial( + # pyrefly: ignore [bad-argument-type] + torch._inductor.runtime.benchmarking.benchmarker.benchmark_gpu, + warmup=5, + ) + + +def _should_pad_bench( + match: Match, + mat1: Tensor, + mat2: Tensor, + op: torch._ops.OpOverloadPacket, + input: Tensor | None = None, +) -> bool: + do_bench = get_do_bench() + + m_padded_length = 0 + n_padded_length = 0 + with no_dispatch(): + if op is torch.ops.aten.mm or op is torch.ops.aten.addmm: + m = mat1.shape[0] + k = mat1.shape[1] + n = mat2.shape[1] + k_padded_length = get_padded_length(k, get_alignment_size(mat1)) + n_padded_length = get_padded_length(n, get_alignment_size(mat2)) + m_padded_length = get_padded_length(m, get_alignment_size(mat1)) + elif op is torch.ops.aten.bmm: + m = mat1.shape[1] + k = mat1.shape[2] + n = mat2.shape[2] + k_padded_length = get_padded_length(k, get_alignment_size(mat1)) + m_padded_length = get_padded_length(m, get_alignment_size(mat1)) + n_padded_length = get_padded_length(n, get_alignment_size(mat2)) + else: + return False + + if m_padded_length == k_padded_length == n_padded_length == 0: + return False + + def realize_symbols( + ds: torch.Size | tuple[torch.SymInt, ...], + ) -> list[int]: + return [d if isinstance(d, int) else d.node.hint for d in ds] + + if any( + dim == 0 + for dim in itertools.chain( + realize_symbols(mat1.shape), realize_symbols(mat2.shape) + ) + ): + return False + + if torch._inductor.config.force_shape_pad: + return True + + if torch._inductor.config.deterministic: + # In deterministic mode, don't benchmark for pad-mm and assumes + # no padding. + # + # Check the deterministic mode after 'force_shape_pad' + # so unit test relying on force_shape_pad should still pass + return False + + if ( + "pad_aten_mm_pass" in torch._inductor.config.post_grad_fusion_options + and should_pad_mm_bf16(mat1.dtype, m, n, k) + ): + return True + + if not has_triton(): + return False + + if not is_mm_compute_bound(m, k, n, mat1.dtype): + return False + + # We don't want to look up the cache for cases that are trivially false + # since it does file io + key = should_pad_bench_key(match, mat1, mat2, op, input) + + cached_pad = get_cached_should_pad(key) + if cached_pad is not None: + return cached_pad + + def realize_tensor(t): + if isinstance(t, FakeTensor): + size_hints = realize_symbols(t.size()) + # pyrefly: ignore [bad-argument-type] + stride_hint = realize_symbols(t.stride()) + real_size = ( + sum((d - 1) * s for d, s in zip(size_hints, stride_hint)) + 1 + ) + real_t = torch.randn(real_size, dtype=t.dtype, device=t.device) + return torch.as_strided(real_t, size_hints, stride_hint) + else: + return torch.randn_like(t) + + mat1 = realize_tensor(mat1) + mat2 = realize_tensor(mat2) + + # since we key on whether or not the inputs can be memory planned, set cache for the + # original time which is unaffected by whether or not the input can be planned + ori_time_key = should_pad_bench_key( + match, mat1, mat2, op, input, is_base_time_key=True + ) + ori_time = get_cached_base_mm_benchmark_time(ori_time_key) + if ori_time is None and op is torch.ops.aten.addmm and input is not None: + # realize bias for addmm + input = realize_tensor(input) + + mat1_pad = mat1 + mat2_pad = mat2 + + is_bmm = op is torch.ops.aten.bmm + + mat1_pre_padded = should_exclude_padding_time(match, "mat1") + fns = [] + if mat1_pre_padded and (m_padded_length or k_padded_length): + mat1_pad = pad_mat1( + mat1_pad, + m_padded_length=m_padded_length, + k_padded_length=k_padded_length, + is_bmm=is_bmm, + ) + + def write_pad(): + if is_bmm: + mat1_pad[:, -m_padded_length:, -k_padded_length:].fill_(0) + else: + mat1_pad[-m_padded_length:, -k_padded_length:].fill_(0) + + fns.append(write_pad) + + mat2_pre_padded = should_exclude_padding_time(match, "mat2") + if mat2_pre_padded and (k_padded_length or n_padded_length): + mat2_pad = pad_mat2( + mat2_pad, + k_padded_length=k_padded_length, + n_padded_length=n_padded_length, + is_bmm=is_bmm, + ) + + def write_pad(): + if is_bmm: + mat2_pad[:, -k_padded_length:, -n_padded_length:].fill_(0) + else: + mat2_pad[-k_padded_length:, -n_padded_length:].fill_(0) + + fns.append(write_pad) + + if op is torch.ops.aten.addmm: + input_pad = None + if input is not None and (input.is_cuda or input.is_xpu): + input_pad = torch.randn_like(input) + fns.append( + lambda: pad_addmm( + input_pad, + mat1_pad, + mat2_pad, + m_padded_length, + k_padded_length, + n_padded_length, + mat1_pre_padded=mat1_pre_padded, + mat2_pre_padded=mat2_pre_padded, + ) + ) + elif op is torch.ops.aten.mm: + fns.append( + lambda: pad_mm( + mat1_pad, + mat2_pad, + m_padded_length, + k_padded_length, + n_padded_length, + mat1_pre_padded=mat1_pre_padded, + mat2_pre_padded=mat2_pre_padded, + ) + ) + else: + fns.append( + lambda: pad_bmm( + mat1_pad, + mat2_pad, + m_padded_length, + k_padded_length, + n_padded_length, + mat1_pre_padded=mat1_pre_padded, + mat2_pre_padded=mat2_pre_padded, + ) + ) + + def orig_bench_fn(): + if op is torch.ops.aten.bmm or op is torch.ops.aten.mm: + op(mat1, mat2) + else: + op(input, mat1, mat2) + + def pad_bench_fn(): + for fn in fns: + fn() + + if ( + torch._inductor.config.run_autoheuristic("pad_mm") + and op is torch.ops.aten.mm + ): + ah_should_pad = run_autoheuristic( + mat1, + mat2, + orig_bench_fn, + pad_bench_fn, + m_padded_length, + k_padded_length, + n_padded_length, + do_bench, + mat1_pre_padded, + mat2_pre_padded, + ori_time, + ori_time_key, + key, + ) + if ah_should_pad is not None: + return ah_should_pad + + if ori_time is None: + ori_time = do_bench(orig_bench_fn) + set_cached_base_mm_benchmark_time(ori_time_key, ori_time) + + pad_time = do_bench(pad_bench_fn) + + counters["inductor"]["pad_mm_bench"] += 1 + return should_pad(key, ori_time, pad_time) + + +def get_context( + mat1: Tensor, + mat2: Tensor, + mat1_pre_padded: bool, + mat2_pre_padded: bool, + m_padded_length: int, + k_padded_length: int, + n_padded_length: int, +) -> AHContext: + context = AHContext() + + context.add_feature("m", mat1.shape[0]) + context.add_feature("k", mat1.shape[1]) + context.add_feature("n", mat2.shape[1]) + + context_add_strides(context, "mat1", mat1.stride()) + context_add_strides(context, "mat2", mat2.stride()) + + context.add_feature("m_padded_length", m_padded_length) + context.add_feature("k_padded_length", k_padded_length) + context.add_feature("n_padded_length", n_padded_length) + + context.add_feature("mat1_align_size", get_alignment_size(mat1)) + context.add_feature("mat2_align_size", get_alignment_size(mat2)) + + context.add_feature("mat1_dtype", mat1.dtype, is_categorical=True) + context.add_feature("mat2_dtype", mat2.dtype, is_categorical=True) + + context.add_feature("prepadded_mat1", mat1_pre_padded, is_categorical=True) + context.add_feature("prepadded_mat2", mat2_pre_padded, is_categorical=True) + + context_add_using_tf32(context, mat1.dtype) + return context + + +def run_autoheuristic( + mat1: Tensor, + mat2: Tensor, + orig_bench_fn: Callable[[], None], + pad_bench_fn: Callable[[], None], + m_padded_length: int, + k_padded_length: int, + n_padded_length: int, + do_bench: Callable[[Callable[[], Any]], float], + mat1_pre_padded: bool, + mat2_pre_padded: bool, + ori_time: float, + ori_time_key: str, + key: str, +) -> bool | None: + def feedback_fn( + choice: str, + ) -> float | None: + if choice == orig_choice: + return do_bench(orig_bench_fn) + elif choice == pad_choice: + return do_bench(pad_bench_fn) + return None + + def fallback() -> str: + return "autotune" + + orig_choice = "orig" + pad_choice = "pad" + choices = [orig_choice, pad_choice] + feedback = LocalFeedback(feedback_fn) # type: ignore[arg-type] + context = get_context( + mat1, + mat2, + mat1_pre_padded, + mat2_pre_padded, + m_padded_length, + k_padded_length, + n_padded_length, + ) + name = "pad_mm" + autoheuristic = AutoHeuristic( + fallback=fallback, + choices=choices, + feedback=feedback, + context=context, + name=name, + augment_context=pad_mm_operations(), + precondition=pad_mm_precondition, + ) + choice = autoheuristic.get_choice() + choice2should_pad = {orig_choice: False, pad_choice: True, "autotune": None} + ah_should_pad = choice2should_pad.get(choice) + + if torch._inductor.config.collect_autoheuristic(name): + ah_ori_time = autoheuristic.get_collected_feedback(orig_choice) + ah_pad_time = autoheuristic.get_collected_feedback(pad_choice) + + # if precondition is not satisfied, autoheuristic does not collect data + if ah_ori_time is not None and ah_pad_time is not None: + if ori_time is None: + set_cached_base_mm_benchmark_time(ori_time_key, ah_ori_time) + return should_pad(key, ah_ori_time, ah_pad_time) + if ah_should_pad is not None: + set_cached_should_pad(key, ah_should_pad) + return ah_should_pad + + +def mm_pattern(mat1: Tensor, mat2: Tensor) -> Tensor: + return aten.mm(mat1, mat2) + + +def should_pad_mm(match: Match) -> bool: + mat1, mat2 = fetch_fake_tensors(match, ("mat1", "mat2")) + return should_pad_common(mat1, mat2) and should_pad_bench( + match, mat1, mat2, torch.ops.aten.mm + ) + + +def pad_mat1( + mat1: Tensor, *, m_padded_length: int, k_padded_length: int, is_bmm: bool = False +) -> Tensor: + if k_padded_length != 0 or m_padded_length != 0: + # dim order is reversed for constant_pad_nd, for every dim we specify right and left padding + pad_arg = [0, k_padded_length, 0, m_padded_length] + if is_bmm: + pad_arg.extend((0, 0)) + return aten.constant_pad_nd(mat1, pad_arg) + else: + return mat1 + + +def pad_mat2( + mat2: Tensor, *, k_padded_length: int, n_padded_length: int, is_bmm: bool = False +) -> Tensor: + if k_padded_length != 0 or n_padded_length != 0: + # dim order is reversed for constant_pad_nd, for every dim we specify right and left padding + pad_arg = [0, n_padded_length, 0, k_padded_length] + if is_bmm: + pad_arg.extend((0, 0)) + return aten.constant_pad_nd(mat2, pad_arg) + else: + return mat2 + + +def pad_mm( + mat1: Tensor, + mat2: Tensor, + m_padded_length: int, + k_padded_length: int, + n_padded_length: int, + mat1_pre_padded: bool = False, + mat2_pre_padded: bool = False, +) -> Tensor: + if not mat1_pre_padded: + mat1 = pad_mat1( + mat1, m_padded_length=m_padded_length, k_padded_length=k_padded_length + ) + if not mat2_pre_padded: + mat2 = pad_mat2( + mat2, k_padded_length=k_padded_length, n_padded_length=n_padded_length + ) + res = aten.mm(mat1, mat2) + if m_padded_length != 0: + res = res[:-m_padded_length, :] + if n_padded_length != 0: + res = res[:, :-n_padded_length] + return res + + +def mm_replace(mat1: Tensor, mat2: Tensor) -> Tensor: + k_padded_length = get_padded_length(mat1.shape[1], get_alignment_size(mat1)) + m_padded_length = get_padded_length(mat1.shape[0], get_alignment_size(mat1)) + n_padded_length = get_padded_length(mat2.shape[1], get_alignment_size(mat2)) + return pad_mm( + mat1, + mat2, + m_padded_length, + k_padded_length, + n_padded_length, + ) + + +def bmm_pattern(mat1: Tensor, mat2: Tensor) -> Tensor: + return aten.bmm(mat1, mat2) + + +def should_pad_bmm(match: Match) -> bool: + mat1, mat2 = fetch_fake_tensors(match, ("mat1", "mat2")) + return should_pad_common(mat1, mat2) and should_pad_bench( + match, mat1, mat2, torch.ops.aten.bmm + ) + + +def pad_bmm( + mat1: Tensor, + mat2: Tensor, + m_padded_length: int, + k_padded_length: int, + n_padded_length: int, + mat1_pre_padded: bool = False, + mat2_pre_padded: bool = False, +) -> Tensor: + if not mat1_pre_padded: + mat1 = pad_mat1( + mat1, + m_padded_length=m_padded_length, + k_padded_length=k_padded_length, + is_bmm=True, + ) + if not mat2_pre_padded: + mat2 = pad_mat2( + mat2, + k_padded_length=k_padded_length, + n_padded_length=n_padded_length, + is_bmm=True, + ) + res = aten.bmm(mat1, mat2) + if m_padded_length != 0: + res = res[:, :-m_padded_length, :] + if n_padded_length != 0: + res = res[:, :, :-n_padded_length] + return res + + +def bmm_replace(mat1: Tensor, mat2: Tensor) -> Tensor: + k_padded_length = get_padded_length(mat1.shape[2], get_alignment_size(mat1)) + n_padded_length = get_padded_length(mat2.shape[2], get_alignment_size(mat2)) + m_padded_length = get_padded_length(mat1.shape[1], get_alignment_size(mat1)) + return pad_bmm( + mat1, + mat2, + m_padded_length, + k_padded_length, + n_padded_length, + ) + + +@functools.cache +def _pad_mm_init() -> None: + from .joint_graph import patterns + + if torch.cuda.is_available(): + # workaround https://github.com/pytorch/pytorch/issues/97894 + device = "cuda" + elif torch.xpu.is_available(): + device = "xpu" + else: + device = "cpu" + + # sizes/values dont actually matter for initial trace + # once we get a possible match we re-trace with the actual values and verify the match still holds + + dim2a = functools.partial(torch.empty, (4, 4), device=device, requires_grad=True) + dim2b = functools.partial(torch.empty, (4, 4), device=device, requires_grad=True) + + dim3a = functools.partial(torch.empty, (4, 4, 4), device=device, requires_grad=True) + dim3b = functools.partial(torch.empty, (4, 4, 4), device=device, requires_grad=True) + + dim1a = functools.partial(torch.empty, (4), device=device, requires_grad=True) + + # workaround https://github.com/pytorch/pytorch/issues/97894 + # 0.113377 is a "magic" value that lets us recover the lost input arg relationship + rep = {"beta": 0.213377, "alpha": 0.113377} + + for pattern, replacement, args, workaround, extra_check in [ + ( + typing.cast(SearchFn, mm_pattern), + typing.cast(ReplaceFn, mm_replace), + [dim2a(), dim2b()], + {}, + should_pad_mm, + ), + ( + typing.cast(SearchFn, bmm_pattern), + typing.cast(ReplaceFn, bmm_replace), + [dim3a(), dim3b()], + {}, + should_pad_bmm, + ), + ( + typing.cast(SearchFn, addmm_pattern), + typing.cast(ReplaceFn, addmm_replace), + [dim1a(), dim2a(), dim2b()], + rep, + should_pad_addmm, + ), + ]: + assert isinstance(workaround, dict) # mypy is unable to infer the type properly + name = pattern.__name__ + + gen_register_replacement( + f"{name}_training", + pattern, + replacement, + args, + # pyrefly: ignore [bad-argument-type] + joint_fwd_bwd, + # pyrefly: ignore [bad-argument-type] + patterns, + extra_check=extra_check, + scalar_workaround=workaround, + ) + + gen_register_replacement( + f"{name}_inference", + pattern, + replacement, + args, + # pyrefly: ignore [bad-argument-type] + fwd_only, + # pyrefly: ignore [bad-argument-type] + patterns, + extra_check=extra_check, + scalar_workaround=workaround, + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/post_grad.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/post_grad.py new file mode 100644 index 0000000000000000000000000000000000000000..4a350b81bbecb47b044c3805bd8af82b04531d45 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/post_grad.py @@ -0,0 +1,1923 @@ +# mypy: allow-untyped-decorators +# mypy: allow-untyped-defs +import functools +import itertools +import logging +import operator +from collections import Counter, defaultdict +from collections.abc import Callable +from typing import Any, TypeVar +from typing_extensions import ParamSpec + +import torch +import torch._inductor as inductor +import torch.utils._pytree as pytree +from torch import fx +from torch._decomp import register_decomposition +from torch._dynamo.utils import counters +from torch._inductor import comms +from torch._inductor.virtualized import ops # noqa: F401 +from torch._logging import trace_structured +from torch._prims_common import is_boolean_dtype, is_expandable_to, is_integer_dtype +from torch.fx.experimental.symbolic_shapes import statically_known_true, sym_eq +from torch.utils._ordered_set import OrderedSet + +from .. import config, ir, pattern_matcher # noqa: F401 +from ..codegen.common import custom_backend_passes +from ..comms import remove_fsdp2_unsharded_param_graph_input_usage +from ..fx_utils import FakeTensorUpdater, get_fake_args_kwargs, get_node_storage +from ..lowering import lowerings as L +from ..pattern_matcher import ( + _return_true, + Arg, + CallFunction, + CallFunctionVarArgs, + filter_nodes, + fwd_only, + get_arg_value, + get_mutation_region_id, + Ignored, + init_once_fakemode, + KeywordArg, + ListOf, + Match, + MultiOutputPattern, + MULTIPLE, + PatternMatcherPass as PatternMatcherPassBase, + register_graph_pattern, + register_replacement, + stable_topological_sort, +) +from ..utils import ( + decode_device, + get_all_devices, + get_gpu_type, + is_gpu, + is_pointwise_use, + OPTIMUS_EXCLUDE_POST_GRAD, +) +from ..virtualized import V +from .b2b_gemm import B2B_GEMM_PASS +from .ddp_fusion import fuse_ddp_communication +from .group_batch_fusion import group_batch_fusion_passes, POST_GRAD_FUSIONS +from .micro_pipeline_tp import micro_pipeline_tp_pass +from .pre_grad import is_same_dict, save_inductor_dict +from .reinplace import reinplace_inplaceable_ops +from .split_cat import POST_GRAD_PATTERNS + + +_T = TypeVar("_T") +_P = ParamSpec("_P") + +PatternMatcherPass = functools.partial( + PatternMatcherPassBase, subsystem="post_grad_passes" +) + +log = logging.getLogger(__name__) +aten = torch.ops.aten +prims = torch.ops.prims + +# First pass_patterns[0] are applied, then [1], then [2] +pass_patterns = [ + PatternMatcherPass(), + PatternMatcherPass(), + PatternMatcherPass(), +] + + +def post_grad_passes(gm: torch.fx.GraphModule, is_inference: bool): + """ + Passes that run on after grad. This is called once on the forwards + graph and once on the backwards graph. + + The IR here has been normalized and functionalized. + """ + GraphTransformObserver = functools.partial( + torch.fx.passes.graph_transform_observer.GraphTransformObserver, + subsystem="post_grad_passes", + ) + + if not torch._dynamo.config.skip_fsdp_hooks: + remove_fsdp2_unsharded_param_graph_input_usage(gm.graph) + + if config.dce: + # has some issues with mutation in inference mode + gm.graph.eliminate_dead_code() + + if is_inference and config.reorder_for_locality: + GraphTransformObserver(gm, "reorder_for_locality").apply_graph_pass( + reorder_for_locality + ) + + fake_tensor_updater = FakeTensorUpdater(gm.graph) + + if post_grad_custom_pre_pass := config.post_grad_custom_pre_pass: + GraphTransformObserver(gm, "post_grad_custom_pre_pass").apply_graph_pass( + post_grad_custom_pre_pass + ) + + if torch._C._has_mkldnn: + if ( + config.cpp.enable_grouped_gemm_template + and config.max_autotune + and "CPP" in config.max_autotune_gemm_backends + ): + from .mkldnn_fusion import grouped_gemm_pass + + grouped_gemm_pass(gm.graph) + + if config.cpp.enable_concat_linear: + from .quantization import concat_linear_woq_int4 + + # Concat linear optimization for WOQ int4 + concat_linear_woq_int4(gm) + + if config.pattern_matcher: + lazy_init() + GraphTransformObserver(gm, "post_grad_custom_pre_pass").apply_graph_pass( + functools.partial(group_batch_fusion_passes, pre_grad=False) + ) + GraphTransformObserver(gm, "remove_noop_ops").apply_graph_pass(remove_noop_ops) + GraphTransformObserver(gm, "remove_assert_ops").apply_graph_pass( + remove_assert_ops + ) + for i, patterns in enumerate(pass_patterns): + GraphTransformObserver(gm, f"pass_pattern_{i}").apply_graph_pass( + patterns.apply + ) + for pass_name in config.post_grad_fusion_options: + # skip all patterns for group batch fusions or quantization patterns + if pass_name in POST_GRAD_FUSIONS or pass_name in OPTIMUS_EXCLUDE_POST_GRAD: + continue + pattern_matcher_pass = POST_GRAD_PATTERNS[pass_name] + inductor_before_change = save_inductor_dict( + [pattern_matcher_pass.pass_name] + ) + GraphTransformObserver(gm, pass_name).apply_graph_pass( + pattern_matcher_pass.apply + ) + if not is_same_dict(counters["inductor"], inductor_before_change): + trace_structured( + "artifact", + metadata_fn=lambda: { + "name": f"{pattern_matcher_pass.pass_name}_post_grad", + "encoding": "string", + }, + payload_fn=lambda: gm.print_readable( + print_output=False, include_stride=True, include_device=True + ), + ) + if config.b2b_gemm_pass: + B2B_GEMM_PASS.apply(gm.graph) # type: ignore[arg-type] + + if config._micro_pipeline_tp: + micro_pipeline_tp_pass(gm.graph) + + if config._fuse_ddp_communication: + GraphTransformObserver(gm, "fuse_ddp_communication").apply_graph_pass( + lambda graph: fuse_ddp_communication( + graph, + config._fuse_ddp_communication_passes, + config._fuse_ddp_bucket_size, + ) + ) + + if post_grad_custom_post_pass := config.post_grad_custom_post_pass: + GraphTransformObserver(gm, "post_grad_custom_post_pass").apply_graph_pass( + post_grad_custom_post_pass + ) + + GraphTransformObserver(gm, "stable_sort").apply_graph_pass(stable_topological_sort) + + GraphTransformObserver(gm, "move_constructors_to_cuda").apply_graph_pass( + move_constructors_to_gpu + ) + + fake_tensor_updater.incremental_update() + + for device, custom_backend_pass in custom_backend_passes.items(): + if custom_backend_pass is not None: + gm_devices = [d.type for d in get_all_devices(gm)] + if device in gm_devices: + pass_name = "custom_backend_passes_" + device + GraphTransformObserver(gm, pass_name).apply_gm_pass(custom_backend_pass) + + collectives_bucketing: bool = False + + if config.bucket_reduce_scatters_fx != "none": + from torch._inductor.fx_passes.bucketing import bucket_reduce_scatter + from torch._inductor.fx_passes.fsdp import bucket_fsdp_reduce_scatter + + p = ( + bucket_fsdp_reduce_scatter + if "fsdp" in config.bucket_reduce_scatters_fx + else bucket_reduce_scatter + ) + GraphTransformObserver(gm, "bucket_reduce_scatters").apply_graph_pass( + lambda graph: p( + graph.owning_module, + config.bucket_reduce_scatters_fx_bucket_size_determinator, + config.bucket_reduce_scatters_fx, # type: ignore[arg-type] + ) + ) + collectives_bucketing = True + + if config.bucket_all_reduces_fx != "none": + from torch._inductor.fx_passes.bucketing import bucket_all_reduce + + GraphTransformObserver(gm, "bucket_all_reduce").apply_graph_pass( + lambda graph: bucket_all_reduce( + graph.owning_module, + config.bucket_all_reduces_fx_bucket_size_determinator, + config.bucket_all_reduces_fx, # type: ignore[arg-type] + ) + ) + collectives_bucketing = True + + # Fx all_gather bucketing introduces mutation op + # Keeping it in the end to keep invariant of functional graph for previous passes. + if config.bucket_all_gathers_fx != "none": + from torch._inductor.fx_passes.bucketing import bucket_all_gather + from torch._inductor.fx_passes.fsdp import bucket_fsdp_all_gather + + p = ( + bucket_fsdp_all_gather # type: ignore[assignment] + if "fsdp" in config.bucket_all_gathers_fx + else bucket_all_gather + ) + GraphTransformObserver(gm, "bucket_all_gathers").apply_graph_pass( + lambda graph: p( + graph.owning_module, + config.bucket_all_gathers_fx_bucket_size_determinator, + config.bucket_all_gathers_fx, # type: ignore[arg-type] + ) + ) + collectives_bucketing = True + + if collectives_bucketing: + # Fx collectives bucketing passes require topological sort for the cases: + # when bucketed collectives have users before the last collective in the bucket + # AND when inputs of bucketed collective have ancestors after the first collective in the bucket. + # + # In this case we can not manually pick the place for bucketed collective insertion. + # But we are guaranteed by the bucketing (independent collectives in the bucket), + # that it is possible to reorder nodes to satisfy all ordering requirements. + # + # --- before bucketing --- + # in0 = ... + # wait_ag0 = ag(in0) + # user0(wait_ag0) + # ... + # pre_in1 = ... + # in1 = transform(pre_in1) + # wait_ag1 = ag(in1) + # user1(wait_ag1) + # + # --- after bucketing --- + # + # in0 = ... + # user(wait_ag0) <--- wait_ag0 is defined only after bucketed collective. + # + # pre_in1 = ... + # in1 = transform(pre_in1) + # ag_bucket(in0+in1) + # wait_bucket + # wait_ag0 = wait_bucket[0] + # wait_ag1 = wait_bucket[1] + # user1(wait_ag1) + stable_topological_sort(gm.graph) + + # Apply overlap scheduling if enabled + if config.aten_distributed_optimizations.enable_overlap_scheduling: + from torch._inductor.fx_passes.overlap_scheduling import ( + schedule_overlap_bucketing_from_inductor_configs, + ) + + overlap_deps = config.aten_distributed_optimizations.insert_overlap_deps + + # by default, insert overlap deps within inductor + with config.patch( + "aten_distributed_optimizations.insert_overlap_deps", + True if overlap_deps is None else overlap_deps, + ): + GraphTransformObserver(gm, "overlap_scheduling").apply_graph_pass( + lambda graph: schedule_overlap_bucketing_from_inductor_configs( + graph.owning_module + ) + ) + + # Keep these last, since they introduce mutation. Look at + # ./fx_passes/README.md for a discussion of mutation invariants. + GraphTransformObserver(gm, "reinplace_inplaceable_ops").apply_graph_pass( + functools.partial(reinplace_inplaceable_ops, fake_tensor_updater), + ) + GraphTransformObserver( + gm, "decompose_triton_kernel_wrapper_functional" + ).apply_graph_pass(decompose_triton_kernel_wrapper_functional) + GraphTransformObserver(gm, "decompose_auto_functionalized").apply_graph_pass( + decompose_auto_functionalized + ) + if not torch._dynamo.config.skip_fsdp_hooks: + GraphTransformObserver(gm, "reinplace_fsdp_all_gather").apply_graph_pass( + comms.reinplace_fsdp_all_gather + ) + GraphTransformObserver(gm, "decompose_scan_to_while_loop").apply_gm_pass( + decompose_scan_to_while_loop + ) + GraphTransformObserver(gm, "decompose_map_to_while_loop").apply_gm_pass( + decompose_map_to_while_loop + ) + + gm.recompile() + gm.graph.lint() + + +def prepare_softmax_pattern(x, dim): + xmax = x.amax(dim=dim, keepdim=True) + xsub = x - xmax + xexp = xsub.exp() + xsum = xexp.sum(dim=dim, keepdim=True) + return xmax, xsum, xsub, xexp + + +def prepare_softmax_replacement(x, dim): + """ + Return xsub since otherwise log-softmax can not be matched + due to a use of this intermediate node. Same reason to return + xsub.exp() for softmax. + """ + from torch._inductor.inductor_prims import prepare_softmax_online + + xmax, xsum = prepare_softmax_online(x, dim) + xsub = x - xmax + return xmax, xsum, xsub, xsub.exp() + + +def prepare_softmax_extra_check(match): + """ + We only have triton online softmax kernels currently. + """ + device_type = match.kwargs["x"].meta["val"].device.type + return ( + config.online_softmax + and device_type in ["cuda", "xpu"] + and getattr(config, f"{device_type}_backend") == "triton" + ) + + +def decompose_map_to_while_loop(gm: torch.fx.GraphModule): + """This is similar to decompose_scan_to_while_loop.""" + graph_pass = PatternMatcherPass() + + @register_graph_pattern( + CallFunctionVarArgs(torch.ops.higher_order.map_impl), + # pyrefly: ignore [bad-argument-type] + pass_dict=graph_pass, + ) + def _(match: Match, *args, **kwargs): + assert len(kwargs) == 0, ( + "kwargs of map are not merged into args before entering decompose_map_to_while_loop_pass" + ) + subgraph, fx_xs, fx_additional_inputs = args + sub_gm: torch.fx.GraphModule = getattr(gm, subgraph.target) + cur_node = match.nodes[0] + mapped_outputs = cur_node.meta["val"] + + def lower_to_while_loop(*args, **kwargs): + assert len(kwargs) == 0 + xs, additional_inputs = pytree.tree_unflatten(args, tree_spec) + assert isinstance(xs, (tuple, list)) and isinstance( + additional_inputs, (tuple, list) + ), (xs, additional_inputs) + map_length = xs[0].size(0) + loop_idx = torch.zeros([], dtype=torch.int64, device=torch.device("cpu")) + + # Similar to NOTE [Pre-allocate scan's output buffer] + bound_symbols = { + arg.node.expr: arg + for arg in pytree.tree_leaves((args, map_length)) + if isinstance(arg, torch.SymInt) + } + out_buffers = [ + torch.empty_strided( + resolve_shape_to_proxy(out.size(), bound_symbols), + resolve_shape_to_proxy(out.stride(), bound_symbols), + device=out.device, + dtype=out.dtype, + layout=out.layout, + requires_grad=out.requires_grad, + ) + for out in mapped_outputs + ] + + while_loop_operands = (loop_idx, out_buffers, xs) + while_loop_flat_operands, operands_spec = pytree.tree_flatten( + while_loop_operands + ) + while_loop_additional_inputs = additional_inputs + _, operands_and_additional_inputs_spec = pytree.tree_flatten( + (*while_loop_operands, additional_inputs) + ) + + def cond_fn(*flat_args): + loop_idx, _, _, _ = pytree.tree_unflatten( + flat_args, + operands_and_additional_inputs_spec, + ) + return loop_idx < map_length + + def body_fn(*flat_args): + loop_idx, out_bufs, xs, additional_inputs = pytree.tree_unflatten( + flat_args, + operands_and_additional_inputs_spec, + ) + + idx_int = loop_idx.item() + torch.ops.aten._assert_scalar.default(idx_int >= 0, "") + torch.ops.aten._assert_scalar.default(idx_int < map_length, "") + sub_xs = [torch.ops.aten.select.int(x, 0, idx_int) for x in xs] + outs = sub_gm(*sub_xs, *additional_inputs) + + for out, buffer in zip(outs, out_bufs): + buffer_slice = torch.ops.aten.select.int(buffer, 0, idx_int) + buffer_slice.copy_(out) + return loop_idx + 1, *out_bufs, *xs + + _, final_out, _ = pytree.tree_unflatten( + torch.ops.higher_order.while_loop( + cond_fn, + body_fn, + tuple(while_loop_flat_operands), + tuple(while_loop_additional_inputs), + ), + operands_spec, + ) + return (final_out,) + + lower_to_while_loop_args, tree_spec = pytree.tree_flatten( + (fx_xs, fx_additional_inputs) + ) + match.replace_by_example( + lower_to_while_loop, lower_to_while_loop_args, run_functional_passes=False + ) + + graph_pass.apply(gm) + + for _node in gm.graph.find_nodes( + op="call_function", target=torch.ops.higher_order.map_impl + ): + raise AssertionError("map is not lowered to while_loop") + + +def resolve_shape_to_proxy( + shape: list[int | torch.SymInt], bound_symbols: dict[Any, Any] +): + """ + Given a list of symints/ints, this function returns a calculated expression of bound_symbols' values. + When we trace this function, we'll get a graph with call_function nodes that describes how the shape expr is + computed from bound_symbols' values. + + Suppose shape = (s1*s2, s1+s2) and bound_symbols = {s1: arg0, s2: arg1}, the result will be + (arg0 * arg1, arg0 + arg1). + """ + from torch.utils._sympy.interp import sympy_interp + from torch.utils._sympy.reference import PythonReferenceAnalysis + + ret = [] + for s in shape: + if isinstance(s, torch.SymInt): + ret.append( + sympy_interp( + PythonReferenceAnalysis, + bound_symbols, + s.node.expr, + ), + ) + else: + assert isinstance(s, int) + ret.append(s) + return ret + + +def decompose_scan_to_while_loop(gm: torch.fx.GraphModule): + """ + NOTE [decompose scan to while_loop] + This pass decomposes `scan` to `while_loop` by replacing the scan fx_node with a while_loop hop. + + Suppose we have a function f: + + def f(): + init = torch.zeros([]) + xs = torch.arange(4) + ys = [] + for i in range(xs.size(0)): + init = xs[i] + init + ys.append(init) + + # Return the final carry and stack the intermediates + return init, torch.stack(ys) + + We could rewrite it with a scan with the benefits of reducing compilation time/binary size, reducing + memory usage, supporting loops over unbacked shapes and cudagraph etc. + + def g(): + def step_fn(init: torch.Tensor, x: torch.Tensor): + next_init = x + init + return next_init, next_init + + init = torch.zeros([]) + xs = torch.arange(4) + final_carry, ys = torch._higher_order.scan(step_fn, init, xs) + return final_carry, ys + + This pass will rewrite scan into: + + def k(): + init = torch.zeros([]) + xs = torch.arange(4) + + # we create a loop_idx and loop through xs.shape[0] + loop_idx = torch.zeros([]) + ys = torch.empty_strided(_shape_stride_of_ys) + def cond_fn(loop_idx, ys, init, xs): + return loop_idx < xs.shape[0] + + # we pre-allocate the output buffer ys and inplace + # copy the y of each intermediate into a slice. + # NOTE [Pre-allocate scan's output buffer]. + def body_fn(loop_idx, ys, init, xs): + int_idx = loop_idx.item() + next_init, y = step_fn(init, xs[int_idx]) + ys[int_idx].copy_(y) + return loop_idx + 1, ys, next_init, xs + + final_carry, _, _, ys = torch._higher_order.while_loop(cond_fn, body_fn, (loop_idx, ys, init, xs)) + return final_carry, ys + """ + + graph_pass = PatternMatcherPass() + + @register_graph_pattern( + CallFunctionVarArgs(torch.ops.higher_order.scan), + # pyrefly: ignore [bad-argument-type] + pass_dict=graph_pass, + ) + def _(match: Match, *args, **kwargs): + from torch._higher_order_ops.scan import _extract_carry_and_out + + assert len(kwargs) == 0, ( + "kwargs of scan are not merged into args before entering decompose_scan_to_while_loop_pass" + ) + + combine_subgraph, fx_init, fx_xs, fx_additional_inputs = args + assert combine_subgraph.op == "get_attr", "first arg is not combine_subgraph" + sub_gm: torch.fx.GraphModule = getattr(gm, combine_subgraph.target) + cur_node = match.nodes[0] + num_init_leaves = len(fx_init) + _, ys_outputs = _extract_carry_and_out(cur_node.meta["val"], num_init_leaves) + + def lower_to_while_loop(*args, **kwargs): + """ + The traced graph of this function will be used to replace the original scan fx_node. + """ + assert len(kwargs) == 0 + + # Step 1: construct necessary inputs to while_loop based on scan's input. + ( + init, + xs, + additional_inputs, + ) = pytree.tree_unflatten(args, tree_spec) + scan_length = xs[0].size(0) + loop_idx = torch.zeros([], dtype=torch.int64, device=torch.device("cpu")) + + # NOTE [Pre-allocate scan's output buffer] + # In order to pre-allocate the output buffer for ys, we rely on the meta of scan's fx_node. + # However, the meta consists of concrete symints, we need to bind those symints with + # proxies in order to trace the torch.empty_strided call correctly. + # + # Also note that basic free symbols of tensor's shapes are guaranteed to be lifted as subgraph inputs + # in dynamo so we can always re-construct the sym expression from placeholders. + # See Note [Auto lift basic free symbols when create_graph_input] for how this is done. + bound_symbols = { + arg.node.expr: arg + for arg in pytree.tree_leaves((args, scan_length)) + if isinstance(arg, torch.SymInt) + } + ys_outs = [ + torch.empty_strided( + resolve_shape_to_proxy(ys_out.size(), bound_symbols), + resolve_shape_to_proxy(ys_out.stride(), bound_symbols), + device=ys_out.device, + dtype=ys_out.dtype, + layout=ys_out.layout, + requires_grad=ys_out.requires_grad, + ) + for ys_out in ys_outputs + ] + + while_loop_operands = (loop_idx, ys_outs, init, xs) + flat_operands, operands_spec = pytree.tree_flatten(while_loop_operands) + _, operands_and_additional_inputs_spec = pytree.tree_flatten( + (*while_loop_operands, additional_inputs) + ) + + # Step 2: create the cond_fn and body_fn for while_loop + def cond_fn(*flat_args): + loop_idx, _, _, _, _ = pytree.tree_unflatten( + flat_args, operands_and_additional_inputs_spec + ) # type: ignore[has-type] + return loop_idx < scan_length # type: ignore[has-type] + + def body_fn(*flat_args): + loop_idx, ys_outs, carry, xs, additional_inputs = pytree.tree_unflatten( + flat_args, + operands_and_additional_inputs_spec, # type: ignore[has-type] + ) + + idx_int = loop_idx.item() + torch.ops.aten._assert_scalar.default(idx_int >= 0, "") + torch.ops.aten._assert_scalar.default(idx_int < scan_length, "") + sub_xs = [torch.ops.aten.select.int(x, 0, idx_int) for x in xs] + next_carry, ys = _extract_carry_and_out( + sub_gm(*(list(carry) + sub_xs + list(additional_inputs))), + num_init_leaves, + ) + for y, y_out in zip(ys, ys_outs): + y_out_slice = torch.ops.aten.select.int(y_out, 0, idx_int) + y_out_slice.copy_(y) + return loop_idx + 1, *ys_outs, *next_carry, *xs + + # Step 3: call the while_loop operator + _, ys_outs, last_carry, _ = pytree.tree_unflatten( + torch.ops.higher_order.while_loop( + cond_fn, + body_fn, + tuple(flat_operands), + tuple(additional_inputs), + ), + operands_spec, + ) + return list(last_carry) + list(ys_outs) + + lower_to_while_loop_args, tree_spec = pytree.tree_flatten( + ( + fx_init, + fx_xs, + fx_additional_inputs, + ) + ) + match.replace_by_example( + lower_to_while_loop, + lower_to_while_loop_args, + run_functional_passes=False, + ) + + graph_pass.apply(gm) + + for _node in gm.graph.find_nodes( + op="call_function", target=torch.ops.higher_order.scan + ): + raise AssertionError("scan is not lowered to while_loop") + + +@init_once_fakemode +def lazy_init(): + if torch._C._has_mkldnn: + from . import decompose_mem_bound_mm # noqa: F401 + from .mkldnn_fusion import _mkldnn_fusion_init + + _mkldnn_fusion_init() + + # Put this patterns in post-grad pass rather than joint-graph + # pass since otherwise there will be perf/peak-memory regression: + # https://github.com/pytorch/pytorch/issues/148141 + register_replacement( + # pyrefly: ignore [bad-argument-type] + prepare_softmax_pattern, + # pyrefly: ignore [bad-argument-type] + prepare_softmax_replacement, + [torch.empty(4, 8)], + scalar_workaround=dict(dim=-1), + # pyrefly: ignore [bad-argument-type] + trace_fn=fwd_only, + # pyrefly: ignore [bad-argument-type] + pass_dicts=pass_patterns[1], + extra_check=prepare_softmax_extra_check, + ) + + +def reorder_for_locality(graph: torch.fx.Graph): + if torch.distributed.is_available(): + + def check(): + # This is a wait node, and `other_node`` is some collective node. + # Eager semantics allow waits to be issued in a different order than + # the collectives. Reordering this wait node might reorder collectives + # which cause hangs. Once we have SPMD mode, we can safely reorder them. + # However, increasing the locality between a collective and its wait node + # is generally worse for performance. + return node.target != torch.ops._c10d_functional.wait_tensor.default + else: + + def check(): + return True + + def visit(other_node): + if ( + other_node.op == "call_function" + and other_node.target != operator.getitem + and all((n in seen_nodes) for n in other_node.users) + and get_mutation_region_id(graph, node) + == get_mutation_region_id(graph, other_node) + and check() + ): + # move node's producers right before it + node.prepend(other_node) + + seen_nodes = OrderedSet[torch.fx.Node]() + + # only reorder nodes before the first copy_ in the graph. + # copy_ will appear at the end of functionalized graphs when there is mutation on inputs, + # and this reordering doesn't work well with mutation + first_copy = next( + iter(graph.find_nodes(op="call_function", target=torch.ops.aten.copy_.default)), + None, + ) + past_mutating_epilogue = first_copy is None + + for node in reversed(graph.nodes): + seen_nodes.add(node) + if not past_mutating_epilogue: + past_mutating_epilogue = node is first_copy + continue + + torch.fx.map_arg((node.args, node.kwargs), visit) + + +def register_lowering_pattern( + pattern, extra_check=_return_true, pass_number=1 +) -> Callable[[Callable[_P, _T]], Callable[_P, _T]]: + """ + Register an aten to inductor IR replacement pattern + """ + return pattern_matcher.register_lowering_pattern( + pattern, + extra_check, + # pyrefly: ignore [bad-argument-type] + pass_dict=pass_patterns[pass_number], + ) + + +################################################################################ +# Actual patterns below this point. +# Priority of patterns is: +# - later output nodes first +# - order patterns are defined in +################################################################################ + + +def is_valid_mm_plus_mm(match: Match): + if not (config.max_autotune or config.max_autotune_gemm): + return False + + # Check if all required values exist + mat1_val = match.kwargs["mat1"].meta.get("val") + mat2_val = match.kwargs["mat2"].meta.get("val") + mat3_val = match.kwargs["mat3"].meta.get("val") + mat4_val = match.kwargs["mat4"].meta.get("val") + + if mat1_val is None or mat2_val is None or mat3_val is None or mat4_val is None: + return False + + *_b1, m1, k1 = mat1_val.shape + *_b2, k2, n1 = mat2_val.shape + if k1 != k2: + return False + + *_b1, m2, k3 = mat3_val.shape + *_b2, k4, n2 = mat4_val.shape + if k3 != k4: + return False + + if m1 != m2 or n1 != n2: + return False + + return True + + +@register_lowering_pattern( + CallFunction( + aten.add, + CallFunction(aten.mm, KeywordArg("mat1"), KeywordArg("mat2")), + CallFunction(aten.mm, KeywordArg("mat3"), KeywordArg("mat4")), + ), + extra_check=is_valid_mm_plus_mm, +) +def mm_plus_mm(match: Match, mat1, mat2, mat3, mat4): + return inductor.kernel.mm_plus_mm.tuned_mm_plus_mm(mat1, mat2, mat3, mat4) + + +@register_graph_pattern( + CallFunction( + aten.cumsum.default, + CallFunction( + torch.ops.aten.full.default, + KeywordArg("shape"), + KeywordArg("fill_value"), + dtype=KeywordArg("dtype"), + layout=Ignored(), + device=KeywordArg("device"), + pin_memory=False, + _users=MULTIPLE, + ), + KeywordArg("dim"), + _users=MULTIPLE, + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=pass_patterns[1], +) +def pointless_cumsum_replacement(match: Match, shape, fill_value, device, dtype, dim): + """Based on a pattern in OPTForCausalLM""" + + if is_integer_dtype(dtype) or is_boolean_dtype(dtype): + # cumsum promotes all integral types to int64 + dtype = torch.int64 + + def repl(*shape): + dim_size = shape[dim] + idx = torch.arange(1, dim_size + 1, device=device, dtype=dtype) + + inter_shape = [1] * len(shape) + inter_shape[dim] = dim_size + return (idx * fill_value).view(inter_shape).expand(shape) + + # only replace the output node, not all nodes + match.nodes = [match.output_node()] + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(repl, list(shape)) + + +_cat_1 = CallFunction(aten.cat, Arg(), 1, _users=2) + + +@register_lowering_pattern( + CallFunction( + aten.cat, + [ + _cat_1, + CallFunction( + aten.slice, + _cat_1, + 1, + 0, + KeywordArg("size"), + ), + ], + 1, + ) +) +def cat_slice_cat(match, cat_input, size, dim=1): + """ + This is an example of a more complex pattern where cat_1 is used + multiple times inside the pattern. We fold 2 calls to cat into one. + + Matches: + cat_1: f32[1024, 4077] = torch.ops.aten.cat.default([add_26, primals_217], 1) + slice_1: f32[1024, 4077] = torch.ops.aten.slice.Tensor(cat_1, 0, 0, 9223372036854775807) + slice_2: f32[1024, 19] = torch.ops.aten.slice.Tensor(slice_1, 1, 0, 19) + cat_2: f32[1024, 4096] = torch.ops.aten.cat.default([cat_1, slice_2], 1) + + + Rewrite to: + slice_2 = torch.ops.aten.slice.Tensor(add_26, 1, 0, 19) + cat_2 = torch.ops.aten.cat.default([add_26, primals_217, slice2], 1) + """ + first, *rest = cat_input + # Optimization is optional, because we can just not fold the cat + # size should be within first.get_size()[dim] such that the optimization is valid. + # For negative `end`, we currently fallback to not optimizing. + if size >= 0 and V.graph.sizevars.statically_known_leq(size, first.get_size()[dim]): + # fold 2 cats into 1 cat + return L[aten.cat]( + [ + first, + *rest, + L[aten.slice](first, dim, 0, size), + ], + dim, + ) + else: + # don't expect to hit this case, just fall back + tmp = L[aten.cat](cat_input, dim) + return L[aten.cat]( + [ + tmp, + L[aten.slice](tmp, dim, 0, size), + ], + dim, + ) + + +def is_valid_splitwithsizes_cat(match): + split_nodes = filter_nodes(match.nodes, aten.split_with_sizes) + cat_nodes = filter_nodes(match.nodes, aten.cat) + get_item_nodes = filter_nodes(match.nodes, operator.getitem) + if len(split_nodes) != 1 or len(cat_nodes) != 1: + return False + split_node, cat_node = split_nodes[0], cat_nodes[0] + # The dim of split and cat should match for passthrough + if get_arg_value(split_node, 2, "dim") != get_arg_value(cat_node, 1, "dim"): + return False + get_item_args = OrderedSet( + get_arg_value(get_item_node, 1) for get_item_node in get_item_nodes + ) + assert None not in get_item_args + split_sizes = get_arg_value(split_node, 1, "split_sizes") + # All parts of split should be included in the cat + if get_item_args != OrderedSet(range(len(split_sizes))): + return False + # The order of get_item_args should same with cat_node used. + # For example, if the split_node like split_with_sizes(input, [2, 2, 3], 1), + # the cat node should be like cat([get_item(0), get_item(1), get_item(2)], 1). + cat_items_args_order = [ + get_arg_value(item_node, 1) for item_node in get_arg_value(cat_node, 0) + ] + if cat_items_args_order != list(range(len(split_sizes))): + return False + + return True + + +def same_meta(node1: torch.fx.Node, node2: torch.fx.Node): + """True if two nodes have the same metadata""" + val1 = node1.meta.get("val") + val2 = node2.meta.get("val") + return ( + val1 is not None + and val2 is not None + and statically_known_true(sym_eq(val1.size(), val2.size())) + and val1.layout == val2.layout + and val1.dtype == val2.dtype + and val1.device == val2.device + and ( + val1.layout != torch.strided + or statically_known_true(sym_eq(val1.stride(), val2.stride())) + ) + ) + + +noop_registry: dict[Any, Any] = {} + + +def register_noop_decomp(targets, nop_arg=0): + def register_fun(cond): + register_decomposition(targets, registry=noop_registry, unsafe=True)( + (cond, nop_arg) # type: ignore[arg-type] + ) + return cond + + return register_fun + + +@register_noop_decomp(aten.slice) +def slice_noop(self, dim=0, start=None, end=None, step=1): + if start is None or end is None: + return False + + slice_dim_size = self.shape[dim] + if ( + statically_known_true(sym_eq(start, 0)) + and ( + statically_known_true(end >= 2**63 - 1) + or statically_known_true(end >= slice_dim_size) + ) + and statically_known_true(sym_eq(step, 1)) + ): + return True + return False + + +@register_noop_decomp(aten.slice_scatter, 1) +def slice_scatter_noop(self, src, dim=0, start=None, end=None, step=1): + if start is None: + start = 0 + if end is None: + end = 2**63 - 1 + slice_scatter_dim_size = self.shape[dim] + if ( + self.shape == src.shape + and start == 0 + and ( + statically_known_true(end >= 2**63 - 1) + or statically_known_true(end >= slice_scatter_dim_size) + ) + and step == 1 + ): + return True + return False + + +@register_noop_decomp(aten.repeat) +def repeat_noop(self, repeats): + return all(r == 1 for r in repeats) + + +@register_noop_decomp(aten.constant_pad_nd) +def constant_pad_nd(x, padding, fill_value=0): + return all(p == 0 for p in padding) + + +@register_noop_decomp(torch.ops.prims.convert_element_type) +def convert_element_type_noop(x, dtype: torch.dtype): + return x.dtype == dtype + + +@register_noop_decomp(torch.ops.prims.device_put) +def device_put_noop(x, device, non_blocking=True): + return x.device == decode_device(device) + + +@register_noop_decomp([aten.ceil, aten.floor, aten.round, aten.trunc]) +def int_noop(x): + return is_integer_dtype(x.dtype) + + +@register_noop_decomp([aten.pow]) +def pow_noop(a, b): + return isinstance(b, int) and b == 1 + + +@register_noop_decomp([aten.cat], lambda args: args[0][0]) +def cat_noop(inputs, dim=0): + return len(inputs) == 1 + + +@register_noop_decomp(aten.view.default) +def view_default_noop(arg, size): + return statically_known_true(sym_eq(arg.shape, tuple(size))) + + +@register_noop_decomp(aten.view.dtype) +def view_dtype_noop(arg, dtype): + return arg.dtype == dtype + + +# Note, we also always have a check for identical metadata, which is why these +# are safe +@register_noop_decomp([aten.copy], nop_arg=1) +@register_noop_decomp([aten.alias, aten.clone]) +def true_noop(*args, **kwargs): + return True + + +def remove_noop_ops(graph: torch.fx.Graph): + """ + Removes both operations that are essentially aten.clone and operations that are essentially aten.alias from the graph. + """ + inputs = OrderedSet[torch.fx.Node]() + input_storages = OrderedSet[int | None]() + output_storages = OrderedSet[int | None]() + + for node in graph.find_nodes(op="placeholder"): + inputs.add(node) + input_storages.add(get_node_storage(node)) + + output_node = next(iter(reversed(graph.nodes))) + assert output_node.op == "output" + outputs = output_node.args[0] + if not isinstance(outputs, (list, tuple)): + # nested subgraphs can have singleton outputs + outputs = (outputs,) + for out in outputs: + if isinstance(out, torch.fx.Node): + output_storages.add(get_node_storage(out)) + + for node in graph.nodes: + if node.target in noop_registry: + cond, src_index = noop_registry[node.target] + if isinstance(src_index, int): + src = node.args[src_index] + else: + src = src_index(node.args) + if not isinstance(src, torch.fx.Node): + continue + # Don't introduce new aliasing between inputs and outputs. + # See fx_passes/README.md for a discussion of why this is + # necessary. + node_storage = get_node_storage(node) + src_storage = get_node_storage(src) + node_is_view = node_storage == src_storage + if ( + not node_is_view + and node_storage in output_storages + and (src_storage in input_storages or src_storage in output_storages) + ): + continue + + # Even if input and outputs are expected to alias, + # don't make "node is src" True + if ( + node_is_view + and node in output_node.args + and (src in inputs or src in output_node.args) + ): + continue + + is_valid, args, kwargs = get_fake_args_kwargs(node) + if not is_valid: + continue + if same_meta(node, src) and cond(*args, **kwargs): + node.replace_all_uses_with(src) + graph.erase_node(node) + + +def remove_assert_ops(graph: torch.fx.Graph): + """ + Removes aten._assert_tensor_metadata.default op because + 1) it will be lowered to a no-op in inductor + 2) it can block fusion, such as unfuse_bias_add_to_pointwise fusion. + + This op could come from aten.to functionalization in export. + + For example, if we have a graph like below + + %addmm = aten.addmm.default(%linear_bias, %arg3_1, %permute) + %_assert_tensor_metadata = aten._assert_tensor_metadata.default(%addmm, None, None, torch.float16) + %convert_element_type_3 = prims.convert_element_type.default(%addmm, torch.float32) + %pow_1 = aten.pow.Tensor_Scalar(%convert_element_type_3, 2) + + We still want to fuse add from addmm with pow, instead of fusing add with mm, according to unfuse_bias_add_to_pointwise fusion. + + However, aten._assert_tensor_metadata.default is not a pointwise op, and would fail the should_prefer_unfused_addmm check. + + We remove this op so it doesn't block fusion decisions. It's safe because this op is lowered to a no-op with @register_lowering. + + """ + for node in graph.find_nodes( + op="call_function", target=torch.ops.aten._assert_tensor_metadata.default + ): + graph.erase_node(node) + + +def decompose_triton_kernel_wrapper_functional(graph): + """Decomposes triton_kernel_wrapper_functional nodes into clones and the underlying + mutation node. + + We assume that the reinplacing pass runs before this; the reinplacing pass + tells us (via rewriting the arguments or .meta to those nodes) which + Tensors we should clone and which Tensors are safe to reinplace. + """ + graph_pass = PatternMatcherPass() + + @register_graph_pattern( + CallFunctionVarArgs(torch.ops.higher_order.triton_kernel_wrapper_functional), + # pyrefly: ignore [bad-argument-type] + pass_dict=graph_pass, + ) + def _(match: Match, *args, **kwargs): + from torch._higher_order_ops.triton_kernel_wrap import ( + triton_kernel_wrapper_functional_dense, + ) + + flat_args, spec = pytree.tree_flatten((args, kwargs)) + + # NB: we combine (args, kwargs) into flat args for replacing. + # This is replace_by_example uses make_fx which does not support + # tracing a function with kwargs. + def decomp(*flat_args): + args, kwargs = pytree.tree_unflatten(flat_args, spec) + return (triton_kernel_wrapper_functional_dense(*args, **kwargs),) + + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(decomp, flat_args, run_functional_passes=False) + + graph_pass.apply(graph) + + for _ in graph.find_nodes( + op="call_function", + target=torch.ops.higher_order.triton_kernel_wrapper_functional, + ): + raise AssertionError("triton_kernel_wrapper_functional was not removed") + + +def decompose_auto_functionalized(graph): + """Decomposes auto_functionalized nodes into clones and the underlying + mutation node. + + We assume that the reinplacing pass runs before this; the reinplacing pass + tells us (via rewriting the arguments or .meta to those nodes) which + Tensors we should clone and which Tensors are safe to reinplace. + """ + graph_pass = PatternMatcherPass() + + @register_graph_pattern( + CallFunctionVarArgs(torch.ops.higher_order.auto_functionalized), + # pyrefly: ignore [bad-argument-type] + pass_dict=graph_pass, + ) + def _(match: Match, *args, **kwargs): + from torch._higher_order_ops.auto_functionalize import auto_functionalized_dense + + only_clone_these_tensors = tuple( + match.nodes[0].meta.get("only_clone_these_tensors", []) + ) + + flat_args, spec = pytree.tree_flatten((args, kwargs)) + + # NB: we combine (args, kwargs) into flat args for replacing. + # This is replace_by_example uses make_fx which does not support + # tracing a function with kwargs. + def decomp(*flat_args): + args, kwargs = pytree.tree_unflatten(flat_args, spec) + assert len(args) == 1 + mode = args[0] + return auto_functionalized_dense(mode, only_clone_these_tensors, **kwargs) + + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(decomp, flat_args, run_functional_passes=False) + + @register_graph_pattern( + CallFunctionVarArgs(torch.ops.higher_order.auto_functionalized_v2), + # pyrefly: ignore [bad-argument-type] + pass_dict=graph_pass, + ) + def _(match: Match, *args, **kwargs): + from torch._higher_order_ops.auto_functionalize import ( + auto_functionalized_v2_dense, + ) + + only_clone_these_bases = tuple( + match.nodes[0].meta.get("only_clone_these_tensors", []) + ) + + flat_args, spec = pytree.tree_flatten((args, kwargs)) + + def _maybe_resolve_constant_get_attr(node): + # Resolve getattr node to its value because they don't always have meta["val"] + if ( + isinstance(node, torch.fx.Node) + and node.op == "get_attr" + and "val" not in node.meta + ): + const_attr = getattr(graph.owning_module, node.target) # type: ignore[arg-type] + assert isinstance( + const_attr, (torch.fx.GraphModule, pytree.TreeSpec) + ), (type(const_attr), const_attr) + return const_attr + return node + + flat_args = [_maybe_resolve_constant_get_attr(arg) for arg in flat_args] + + # NB: we combine (args, kwargs) into flat args for replacing. + # This is replace_by_example uses make_fx which does not support + # tracing a function with kwargs. + def decomp(*flat_args): + args, kwargs = pytree.tree_unflatten(flat_args, spec) + assert len(args) == 1 + mutable_op = args[0] + return auto_functionalized_v2_dense( + mutable_op, only_clone_these_bases, **kwargs + ) + + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(decomp, flat_args, run_functional_passes=False) + + graph_pass.apply(graph) + + # Remove unused get_attr nodes and their corresponding attributes from the graph module. + # When auto_functionalizing a hop, we need to clean up get_attr nodes for _constant_schema + # and the auto_functionalized graph module that are no longer referenced. + unused_get_attr_nodes = [] + removable_attrs: OrderedSet[torch.fx.node.Target] = OrderedSet() + protected_attrs: OrderedSet[torch.fx.node.Target] = OrderedSet() + + # First pass: identify unused get_attr nodes and track attribute usage + for node in graph.nodes: + if node.op != "get_attr": + continue + + if len(node.users) == 0: + # Node is unused, mark for removal + unused_get_attr_nodes.append(node) + + # Check if the attribute can be removed from the module + if ( + hasattr(graph.owning_module, node.target) + and isinstance( + getattr(graph.owning_module, node.target), torch.fx.GraphModule + ) + and node.target not in protected_attrs + ): + removable_attrs.add(node.target) + else: + # Node is used, protect its attribute from removal + if node.target in removable_attrs: + removable_attrs.remove(node.target) + protected_attrs.add(node.target) + + # Second pass: clean up unused nodes and attributes + for node in unused_get_attr_nodes: + graph.erase_node(node) + + for attr_name in removable_attrs: + assert isinstance(attr_name, str) + delattr(graph.owning_module, attr_name) + + graph.lint() + + for _ in graph.find_nodes( + op="call_function", target=torch.ops.higher_order.auto_functionalized + ): + raise AssertionError("auto_functionalized was not removed") + + for _ in graph.find_nodes( + op="call_function", target=torch.ops.higher_order.auto_functionalized_v2 + ): + raise AssertionError("auto_functionalized_v2 was not removed") + + +@register_lowering_pattern( + CallFunction( + aten.cat, + ListOf( + CallFunction( + operator.getitem, + CallFunction( + aten.split_with_sizes, + KeywordArg("input_"), + Ignored(), + Ignored(), + _users=MULTIPLE, + ), + Ignored(), + ), + ), + Ignored(), + ), + pass_number=2, + extra_check=is_valid_splitwithsizes_cat, +) +def splitwithsizes_cat_replace(match, input_): + return input_ + + +def is_valid_cat_splitwithsizes(match): + cat_nodes = filter_nodes(match.nodes, aten.cat) + split_nodes = filter_nodes(match.nodes, aten.split_with_sizes) + if len(split_nodes) != 1 or len(cat_nodes) != 1: + return False + split_node, cat_node = split_nodes[0], cat_nodes[0] + + # the cat node has other users: can't eliminate + if len(cat_node.users) > 1: + return False + + # the dim of the cat and split should match + dim = get_arg_value(split_node, 2, "dim") + if dim != get_arg_value(cat_node, 1, "dim"): + return False + + cat_inputs = list(get_arg_value(cat_node, 0)) + split_sizes = get_arg_value(split_node, 1, "split_sizes") + # the number of input tensors in cat and the + # length of the split sizes should match + if len(cat_inputs) != len(split_sizes): + return False + + for cat_input, split_size in zip(cat_inputs, split_sizes): + # each cat input tensor's size along dim + # should match the corresponding split size + if "val" not in cat_input.meta: + return False + cat_input_size = cat_input.meta["val"].size(dim) + if cat_input_size != split_size: + return False + + return True + + +@register_lowering_pattern( + CallFunction( + aten.split_with_sizes, + CallFunction( + aten.cat, + KeywordArg("input_"), + Ignored(), + _users=MULTIPLE, + ), + Ignored(), + Ignored(), + ), + pass_number=2, + extra_check=is_valid_cat_splitwithsizes, +) +def cat_splitwithsizes_replace(match, input_): + return input_ + + +def view_to_reshape(gm): + """ + Replace view ops in the GraphModule to reshape ops. + """ + subgraph_names: OrderedSet[str] = OrderedSet( + x.target for x in gm.graph.find_nodes(op="get_attr") + ) + + for child_name, child_mod in gm.named_children(): + if child_name in subgraph_names and isinstance(child_mod, torch.fx.GraphModule): + view_to_reshape(child_mod) + + for nd in gm.graph.find_nodes( + op="call_function", target=torch.ops.aten.view.default + ): + nd.target = torch.ops.aten.reshape.default + + +def should_prefer_unfused_addmm(match): + inp = match.kwargs["inp"] + if not is_gpu(inp.meta["val"].device.type): + return False + + output = match.output_node() + return all(is_pointwise_use(use) for use in output.users) + + +@register_graph_pattern( + CallFunction( + aten.addmm, + KeywordArg("inp"), + Arg(), + Arg(), + beta=KeywordArg("beta"), + alpha=KeywordArg("alpha"), + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=pass_patterns[2], + extra_check=should_prefer_unfused_addmm, +) +def unfuse_bias_add_to_pointwise(match: Match, mat1, mat2, *, inp, alpha, beta): + def repl(inp, x1, x2, alpha, beta): + mm_result = x1 @ x2 + if alpha != 1: + mm_result = alpha * mm_result + if beta != 1: + inp = beta * inp + return inp + mm_result + + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(repl, [inp, mat1, mat2, alpha, beta]) + + +def is_valid_addmm_fusion(match): + mat1, mat2 = match.args + inp = match.kwargs["inp"] + + if not ( + isinstance(inp, torch.fx.Node) and isinstance(inp.meta["val"], torch.Tensor) + ): + return False # Input is a number + + in_shape = inp.meta["val"].shape + mm_shape = mat1.meta["val"].shape[0], mat2.meta["val"].shape[1] + matched = is_expandable_to(in_shape, mm_shape) + if not matched: + return False # Shape mismatch + + inp_dtype = inp.meta["val"].dtype + + # aten cublas integration assumes equal dtypes + if inp_dtype != mat1.meta["val"].dtype or inp_dtype != mat2.meta["val"].dtype: + return False + + return not should_prefer_unfused_addmm(match) + + +@register_graph_pattern( + CallFunction( + aten.add, + CallFunction(aten.mm, Arg(), Arg()), + KeywordArg("inp"), + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=pass_patterns[2], + extra_check=is_valid_addmm_fusion, +) +@register_graph_pattern( + CallFunction( + aten.add, + KeywordArg("inp"), + CallFunction(aten.mm, Arg(), Arg()), + ), + # pyrefly: ignore [bad-argument-type] + pass_dict=pass_patterns[2], + extra_check=is_valid_addmm_fusion, +) +def addmm(match, mat1, mat2, *, inp): + def repl(inp, mat1, mat2): + return aten.addmm(inp, mat1, mat2) + + match.replace_by_example(repl, [inp, mat1, mat2]) + + +def register_partial_reduction_pattern(): + "Reuse partial reductions in complete reductions" + + # post grad equivalents + equiv_red = { + aten.amax.default: aten.max.default, + aten.amin.default: aten.min.default, + } + + # TODO: to support other reductions like sum, would need to skip + # lower precision reductions since partial output would need to be kept at fp32. + for red_op in (aten.amax.default, aten.amin.default): + inp = KeywordArg("input") + partial_reduc = CallFunction( + red_op, inp, KeywordArg("reduced_dims"), KeywordArg("keepdim") + ) + full_reduc = CallFunction([red_op, equiv_red[red_op]], inp) + + @register_graph_pattern( + MultiOutputPattern([partial_reduc, full_reduc]), + # pyrefly: ignore [bad-argument-type] + pass_dict=pass_patterns[2], + ) + def reuse_partial(match, input, reduced_dims, keepdim): + partial_red, full_red = match.output_nodes() + + # if they're small, reuse not worth it + if not statically_known_true(input.meta["val"].numel() >= 4096): + return True + + def replacement(inp: torch.Tensor) -> tuple[torch.Tensor, torch.Tensor]: + partial = partial_red.target(inp, reduced_dims, keepdim) + complete = full_red.target(partial) + return (partial, complete) + + counters["inductor"]["partial_reduction_reuse"] += 1 + match.replace_by_example(replacement, [input]) + + +register_partial_reduction_pattern() + + +def check_shape_cuda_and_fused_int_mm_mul_enabled(match): + return ( + config.force_fuse_int_mm_with_mul + and len(getattr(match.args[2].meta.get("val"), "shape", [])) == 2 + and getattr(match.args[2].meta.get("val"), "is_cuda", False) + ) + + +def is_index_put_and_requires_h2d_sync_for_gpu_value(node): + from torch.fx.operator_schemas import normalize_function + + if node.target not in [ + torch.ops.aten.index_put.default, + torch.ops.aten.index_put_.default, + ]: + return False + # Inductor falls back to aten.index_put_. + # index_put_ will will call nonzero() and perform a H2D sync if + # any of its indices are bool/byte tensors + # However, it will short-circuit this H2D sync and run mask_fill_ + # if the value we are putting is a cpu scalar. + # Therefore, when inductor sees an index_put_ with byte tensor indices, + # it should *not* convert the cpu scalar value into a gpu tensor. + args_, _kwargs = normalize_function(node.target, node.args, node.kwargs) # type: ignore[misc] + any_byte_bool_indices = False + indices = args_[1] + for i in indices: + if i is not None and i.meta["val"].dtype in [torch.bool, torch.int8]: + any_byte_bool_indices = True + + val = args_[2].meta["val"] + val_is_cpu_scalar = val.device.type == "cpu" and val.numel() == 1 + # If both these conditions hold, then converting the val + # to a gpu tensor will incur a H2D sync when inductor calls aten.index_put_ + return any_byte_bool_indices and val_is_cpu_scalar + + +class ConstructorMoverPass: + def __init__( + self, target: str, allow_outputs: bool = False, allow_inputs: bool = False + ) -> None: + """ + Move constructors from cpu to the target_device. + + Sweeps through the module, looking for constructor nodes that can be moved + to the target_device. + + A constructor node can be moved to the target_device iff all of its users + can also be moved (tested by cannot_be_moved). Otherwise, all dependent + constructor nodes won't be moved. + + - target: target device type + - allow_outputs: allow outputs to be moved + - allow_inputs: allow inputs to be moved + """ + + self.target = target + self.allow_inputs = allow_inputs + self.allow_outputs = allow_outputs + + assert isinstance(target, str), ( + "target should be a string representing the device type. " + f"Got: {type(target).__name__}" + ) + + def allow_cpu_device(self, node: fx.Node) -> bool: + """ + Returns whether a node that returns a tensor on the target device may have + cpu tensors as input. + """ + return node.target in ( + torch.ops.aten.index.Tensor, + torch.ops.aten.index_put.default, + torch.ops.aten.index_put_.default, + torch.ops.aten.copy.default, + torch.ops.aten.copy_.default, + torch.ops.aten.slice_scatter.default, + ) + + def is_on_target_device(self, node: fx.Node) -> bool: + """ + Returns whether a node is on the target device. + """ + node_device = self.get_node_device(node) + return node_device is not None and node_device.type == self.target + + def is_cpu_scalar_tensor(self, node: fx.Node) -> bool: + """ + Returns whether a node is a cpu scalar tensor. + """ + device = self.get_node_device(node) + is_cpu = device is not None and device.type == "cpu" + ten = node.meta.get("val") + is_scalar = isinstance(ten, torch.Tensor) and len(ten.size()) == 0 + return is_cpu and is_scalar + + def all_inputs_are_cpu_scalar_or_on_target_device(self, node: fx.Node) -> bool: + """ + Returns whether a node's inputs are either cpu scalar tensors or + on the target device. + """ + inputs = ( + inp + for inp in itertools.chain(node.args, node.kwargs.values()) + if isinstance(inp, fx.Node) + ) + return all( + self.is_cpu_scalar_tensor(inp) or self.is_on_target_device(inp) + for inp in inputs + ) + + def cannot_be_moved(self, node: fx.Node) -> bool: + """ + Returns whether a node can be moved to the target device. + + If this function returns False, it means that this node and all of its users + won't be moved into the target device. + """ + if node.target == "output": + return not self.allow_outputs + + if not ( + isinstance(node.target, torch._ops.OpOverload) + and node.target.namespace in ("prims", "aten") + ): + return True + + if is_index_put_and_requires_h2d_sync_for_gpu_value(node): + return True + + return False + + def get_node_device(self, node: fx.Node) -> torch.device | None: + """ + Get the device of a node. + """ + ten = node.meta.get("val") + return None if not isinstance(ten, torch.Tensor) else ten.device + + def get_cpu_indeg_count(self, graph: fx.Graph) -> dict[fx.Node, int]: + """ + Get the number of cpu inputs to a node + """ + cpu_indeg: dict[fx.Node, int] = Counter() + + for node in graph.nodes: + cpu_count = 0 + + def add_cpu_inp(node): + nonlocal cpu_count + device = self.get_node_device(node) + cpu_count += device is not None and device.type == "cpu" + + pytree.tree_map_only(fx.Node, add_cpu_inp, (node.args, node.kwargs)) + + # pyrefly: ignore [redundant-condition] + if cpu_count: + cpu_indeg[node] = cpu_count + + return cpu_indeg + + def __call__(self, graph: fx.Graph) -> None: + target_devices = OrderedSet[torch.device]() + constructors = [] + cpu_placeholders: OrderedSet[fx.Node] = OrderedSet() + + for node in graph.nodes: + device = self.get_node_device(node) + if device and device.type == self.target: + target_devices.add(device) + + if ( + self.allow_inputs + and node.op == "placeholder" + and self.is_cpu_scalar_tensor(node) + ): + cpu_placeholders.add(node) + constructors.append(node) + continue + + if not ( + isinstance(node.target, torch._ops.OpOverload) + and node.target.namespace in ("prims", "aten") + ): + continue + + if not torch._subclasses.fake_tensor._is_tensor_constructor(node.target): + continue + + if node.kwargs.get("device") != torch.device("cpu"): + continue + + constructors.append(node) + + # not handling multiple target devices initially + if not constructors or len(target_devices) != 1: + return + + movable_constructors = self.find_movable_constructors(graph, constructors) + + target_device = next(iter(target_devices)) + movable_cpu_placeholders = movable_constructors & cpu_placeholders + if movable_cpu_placeholders: + node = next(iter(reversed(movable_cpu_placeholders))) + last_node = node + unsqueezed_nodes = [] + for elem in movable_cpu_placeholders: + with graph.inserting_after(last_node): + unsqueezed_nodes.append( + graph.call_function(torch.ops.aten.unsqueeze.default, (elem, 0)) + ) + last_node = unsqueezed_nodes[-1] + with graph.inserting_after(last_node): + cpu_concat = graph.call_function( + torch.ops.aten.cat.default, (unsqueezed_nodes,) + ) + last_node = cpu_concat + with graph.inserting_after(last_node): + gpu_concat = graph.call_function( + torch.ops.prims.device_put.default, + (cpu_concat, target_device, True), + ) + last_node = gpu_concat + with graph.inserting_after(last_node): + gpu_split = graph.call_function( + torch.ops.aten.unbind.int, (gpu_concat,) + ) + last_node = gpu_split + for idx, node in enumerate(movable_cpu_placeholders): + with graph.inserting_after(last_node): + gpu_node = graph.call_function(operator.getitem, (gpu_split, idx)) + node.replace_all_uses_with( + gpu_node, + lambda x: x + not in [cpu_concat, gpu_concat, gpu_split, gpu_node] + + unsqueezed_nodes + and x.target != torch.ops.aten.copy_.default, + ) + last_node = gpu_node + + # noop elimination if there are other device_put for gpu_node to + # target device. Alternatively, we could just move the other device_put + # earlier in the graph, but that is not supported in fx graph yet. + noop_device_puts = [ + user + for user in gpu_node.users + if user.target is torch.ops.prims.device_put.default + and user.args[1] == target_device + ] + for noop in noop_device_puts: + noop.replace_all_uses_with(gpu_node) + graph.erase_node(noop) + + movable_constructors -= movable_cpu_placeholders + for node in movable_constructors: + kwargs = node.kwargs.copy() + kwargs["device"] = target_device + node.kwargs = kwargs + + def find_movable_constructors( + self, graph: fx.Graph, constructors: list[fx.Node] + ) -> OrderedSet[fx.Node]: + """ + Starting from the cpu constructors, iterate through the graph and test that all of their + downstream uses can safely be moved to cpu. + """ + cpu_indeg: dict[fx.Node, int] = self.get_cpu_indeg_count(graph) + + # which constructors cannot be moved to gpu + cannot_move_to_gpu = OrderedSet[fx.Node]() + + # For any node in the graph, which constructors does it have a dependency on + constructor_dependencies: dict[fx.Node, OrderedSet[fx.Node]] = defaultdict( + OrderedSet + ) + + # if a cpu node has a dependency on two different cpu constructors, + # then if either constructor cannot be moved to gpu, the other cannot as well. + # In this case any node with a dependency on one will have a dependency on the other + equal_constructor_sets: dict[fx.Node, OrderedSet[fx.Node]] = { + c: OrderedSet([c]) for c in constructors + } + + def make_dependencies_equivalent( + set1: OrderedSet[fx.Node], set2: OrderedSet[fx.Node] + ) -> OrderedSet[fx.Node]: + # could use union find but not worth complexity here + set1.update(set2) + for obj in set1: + equal_constructor_sets[obj] = set1 + return set1 + + queue: list[fx.Node] = list(constructors) + + for c in queue: + constructor_dependencies[c].add(c) + + while queue: + node = queue.pop() + dependencies = constructor_dependencies[node] + + for user in node.users: + if self.cannot_be_moved(user): + cannot_move_to_gpu.update(dependencies) + break + + # this node was used on a op which takes in multiple devices and output a gpu + # tensor. we can convert its cpu input to gpu without making further changes + if self.allow_cpu_device(user) and self.is_on_target_device(user): + del cpu_indeg[user] + elif ( + self.allow_inputs + and self.all_inputs_are_cpu_scalar_or_on_target_device(user) + ): + # this node takes only cpu scalar tensors or gpu tensors as inputs + # and outputs a gpu tensor. we can convert its cpu scalar inputs to gpu + # without making further changes + del cpu_indeg[user] + else: + # otherwise, we should continue look at its downstream uses + cpu_indeg[user] -= 1 + if cpu_indeg[user] == 0: + del cpu_indeg[user] + queue.append(user) + + unioned_set = make_dependencies_equivalent( + dependencies, constructor_dependencies[user] + ) + constructor_dependencies[user] = unioned_set + + for node in cpu_indeg: + if constructor_dependencies[node]: + cannot_move_to_gpu.update(constructor_dependencies[node]) + + all_cannot_move_to_gpu = cannot_move_to_gpu.copy() + for constructor in cannot_move_to_gpu: + all_cannot_move_to_gpu.update(equal_constructor_sets[constructor]) + + return OrderedSet(constructors) - all_cannot_move_to_gpu + + +def move_constructors_to_gpu(graph: fx.Graph) -> None: + """ + Moves intermediary tensors which are constructed on the cpu to gpu when safe + """ + + # cudagraph does not support cpu tensors. In this pass, we update the graph + # by explicitly moving cpu scalar tensors to gpu when profitable, relying on + # graph partition to split off this data copy, and cudagraphifying + # the remaining gpu ops. + allow_inputs_outputs = bool( + torch._inductor.config.triton.cudagraphs + and torch._inductor.config.graph_partition + ) + ConstructorMoverPass( + get_gpu_type(), + allow_inputs=allow_inputs_outputs, + allow_outputs=allow_inputs_outputs, + )(graph) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/pre_grad.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/pre_grad.py new file mode 100644 index 0000000000000000000000000000000000000000..2fd81f9b8cd57a1384806191ff7b8338f7b36807 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/pre_grad.py @@ -0,0 +1,877 @@ +# mypy: allow-untyped-defs +import copy +import functools +import itertools +import logging +import types +from collections.abc import Sequence + +import torch +import torch.nn as nn +from torch._dynamo.utils import counters, detect_fake_mode +from torch._logging import trace_structured +from torch.fx.experimental.optimization import ( + matches_module_pattern, + replace_node_module, +) +from torch.fx.passes.graph_transform_observer import ( + GraphTransformObserver as GraphTransformObserverBase, +) +from torch.fx.passes.shape_prop import ShapeProp +from torch.nn import functional as F +from torch.nn.utils.fusion import fuse_conv_bn_eval, fuse_conv_bn_weights + +from .. import config +from ..fx_utils import matches_module_function_pattern +from ..pattern_matcher import ( + init_once_fakemode, + PatternMatcherPass as PatternMatcherPassBase, + stable_topological_sort, +) +from ..utils import is_cpu_device, pass_execution_and_save +from .group_batch_fusion import group_batch_fusion_passes, PRE_GRAD_FUSIONS +from .misc_patterns import numpy_compat_normalization +from .split_cat import PRE_GRAD_PATTERNS + + +PatternMatcherPass = functools.partial( + PatternMatcherPassBase, subsystem="pre_grad_passes" +) +GraphTransformObserver = functools.partial( + GraphTransformObserverBase, subsystem="pre_grad_passes" +) + +log = logging.getLogger(__name__) + +efficient_conv_bn_eval_pass = PatternMatcherPass( + pass_name="efficient_conv_bn_eval_pass" +) + +fuse_split_linear_add_pass = PatternMatcherPass( + pass_name="fuse_split_linear_add_pass", +) +fuse_chunk_squeeze_cat_pass = PatternMatcherPass( + pass_name="fuse_chunk_squeeze_cat_pass", +) +remove_reshape_pass = PatternMatcherPass( + pass_name="remove_reshape_pass", +) + +# based on predispatch aten IR +normalization_pass_aten = PatternMatcherPass(pass_name="normalization_pass_aten") +merge_splits_pass_aten = PatternMatcherPass(pass_name="merge_splits_pass_aten") +split_cat_pass_aten = PatternMatcherPass(pass_name="split_cat_pass_aten") +unbind_stack_pass_aten = PatternMatcherPass(pass_name="unbind_stack_pass_aten") +merge_getitem_cat_pass_aten = PatternMatcherPass( + pass_name="merge_getitem_cat_pass_aten" +) +merge_stack_tahn_unbind_pass_aten = PatternMatcherPass( + pass_name="merge_stack_tahn_unbind_pass_aten" +) +mutate_cat_pass_aten = PatternMatcherPass(pass_name="mutate_cat_pass_aten") +remove_split_with_size_one_pass_aten = PatternMatcherPass( + pass_name="remove_split_with_size_one_pass_aten" +) + + +def save_inductor_dict(pass_to_compare=None): + if not pass_to_compare: + pass_to_compare = list(config.pre_grad_fusion_options.keys()) + list( + config.post_grad_fusion_options.keys() + ) + return {p: dict(counters["inductor"]).get(p, 0) for p in pass_to_compare} + + +def is_same_dict(inductor_dict, optimus_dict): + for pass_name, count in optimus_dict.items(): + if count != dict(inductor_dict).get(pass_name, 0): + return False + return True + + +def shape_prop(mod) -> None: + return None + + +def normalize_node_kwargs_pass(graph): + return None + + +def fuse_parallel_linear_pass(graph): + return None + + +def remove_split_ops(graph, shape_prop): + return None + + +def remove_split_ops_pass(graph): + remove_split_ops(graph.owning_module, shape_prop) + + +def fuse_chunk_reshape_unsqueeze_concat_pass(graph): + return None + + +def fuse_chunk_reshape_concat_pass(graph): + return None + + +def remove_noop_pass(graph): + return None + + +def stack_to_unsqueeze_pass(graph): + return None + + +def merge_concats_pass(graph): + return None + + +def relu_nan_to_num(graph): + return None + + +def fuse_split_getitem_squeeze_cat(graph): + return None + + +def use_triton_dot_compress(graph): + return None + + +def use_triton_lce_replace_simple_LCE_helper(gm, shape_prop): + return None + + +def use_triton_lce_replace_simple_LCE(graph): + return use_triton_lce_replace_simple_LCE_helper(graph.owning_module, shape_prop) + + +def use_triton_lce_replace_normal_LCE_helper(gm, shape_prop): + return None + + +def use_triton_lce_replace_normal_LCE(graph): + return use_triton_lce_replace_simple_LCE_helper(graph.owning_module, shape_prop) + + +def use_matmul_lce_replace_normal_LCE(graph): + return None + + +def use_matmul_fuse_lce_replace_first_LCE(graph): + return None + + +@init_once_fakemode +def lazy_init(): + from . import efficient_conv_bn_eval, split_cat # noqa: F401 + + if config.is_fbcode(): + from . import fb # type: ignore[attr-defined] # noqa: F401 + + +def _get_pass_name_func(p): + if isinstance(p, PatternMatcherPassBase): + pass_name = p.pass_name + pass_func = p.apply + elif isinstance(p, types.FunctionType): + pass_name = p.__name__.lstrip("_") + pass_func = p + else: + pass_name = None + pass_func = None + + return pass_name, pass_func + + +def _run_pre_dispatch_passes( + gm: torch.fx.GraphModule, + example_inputs: Sequence[object] = (), + add_passes: str | None = None, + remove_passes: str | None = None, +) -> None: + # order matters + default_pass_list = [ + # normalize passes, must be called as the first passes + normalization_pass_aten, + normalize_node_kwargs_pass, + remove_noop_pass, + relu_nan_to_num, + fuse_chunk_reshape_concat_pass, + group_batch_fusion_passes, + normalize_node_kwargs_pass, + fuse_chunk_squeeze_cat_pass, + merge_concats_pass, + fuse_split_linear_add_pass, + remove_reshape_pass, + fuse_parallel_linear_pass, + remove_split_ops_pass, + stack_to_unsqueeze_pass, # run before fuse_chunk_reshape_unsqueeze_concat_pass + fuse_chunk_reshape_unsqueeze_concat_pass, + ] + + full_pass_list = default_pass_list + [ + fuse_split_getitem_squeeze_cat, + use_triton_dot_compress, + use_triton_lce_replace_simple_LCE, + use_triton_lce_replace_normal_LCE, + use_matmul_fuse_lce_replace_first_LCE, + use_matmul_lce_replace_normal_LCE, + ] + + log.info( + f"pre_grad_passes: add_passes: {add_passes}, remove_pass: {remove_passes}" # noqa: G004 + ) + add_passes_list = [] + remove_passes_list = [] + if add_passes: + add_passes_list = add_passes.split(",") + if remove_passes: + remove_passes_list = remove_passes.split(",") + + shape_prop = lambda mod: ShapeProp( # noqa: E731 + gm=mod, + # pyre-fixme[16]: Module `torch._dynamo.utils` has no attribute `detect_fake_mode` + fake_mode=detect_fake_mode(example_inputs), + ).propagate(*tuple(example_inputs)) + + for p in default_pass_list: + pass_name, pass_func = _get_pass_name_func(p) + # should not happen + if pass_name is None or pass_func is None: + continue + if pass_name in remove_passes_list: + continue + pass_execution_and_save( + pass_func, + gm, + example_inputs, + f"[Pre grad(predispatch IR)] Apply {pass_name} pass", + ) + + for p in full_pass_list: + pass_name, pass_func = _get_pass_name_func(p) + if pass_name is None or pass_func is None: + continue + if pass_name in add_passes_list: + pass_execution_and_save( + pass_func, + gm, + example_inputs, + f"[Pre grad(predispatch IR)] Apply {pass_name} pass", + ) + + if "remove_noop" not in remove_passes_list: + # Remove noops at the end, which may be generated other passes. + pass_execution_and_save( + remove_noop_pass, + gm, + example_inputs, + "[Pre grad(predispatch IR)]Apply remove_noop pass", + ) + shape_prop(gm) + + +def pre_grad_passes( + gm: torch.fx.GraphModule, + example_inputs: Sequence[object] = (), + add_passes: str | None = None, + remove_passes: str | None = None, +) -> torch.fx.GraphModule: + """ + Apply passes on the input FX graph using Torch IR. + + WARNING: + The IR before grad is not functional or normalized, so it is harder + to write passes on this IR. Passes must be safe with respect to + aliasing and mutation and need to handle all possible arg schemas. + + Consider adding a new pass to post_grad.py or joint_graph.py which + are after functionalization and normalization. + """ + if config.pattern_matcher: + lazy_init() + if hasattr( + config, "fx_passes_numeric_check" + ) and config.fx_passes_numeric_check.get("pre_grad", False): + gm_before_fx_passes = gm.__copy__() + # explicitly run with predispatch atenIR based passes + if config.is_predispatch: + _run_pre_dispatch_passes(gm, example_inputs, add_passes, remove_passes) + else: + # We only log the graph with changes to avoid the excessive compilation time + # https://fb.workplace.com/groups/257735836456307/permalink/633533465543207/ + if example_inputs is not None: + gm = fuse_fx(gm, example_inputs) + numpy_compat_normalization(gm.graph) + # We should always do the normalization_pass first + if "normalization_pass" in config.pre_grad_fusion_options: + pattern_matcher_pass = PRE_GRAD_PATTERNS["normalization_pass"] + pattern_matcher_pass.apply(gm.graph) # type: ignore[arg-type] + group_batch_fusion_passes(gm.graph, pre_grad=True) + for pass_name in config.pre_grad_fusion_options: + # skip all patterns for group batch fusions + if pass_name in PRE_GRAD_FUSIONS or pass_name == "normalization_pass": + continue + pattern_matcher_pass = PRE_GRAD_PATTERNS[pass_name] + inductor_before_change = save_inductor_dict( + [pattern_matcher_pass.pass_name] + ) + # we support run same pattern multiple times, the default is to run only once + counter = config.pre_grad_fusion_options[pass_name].get("counter", 1) + for _ in range(counter): + pattern_matcher_pass.apply(gm.graph) # type: ignore[arg-type] + if not is_same_dict(counters["inductor"], inductor_before_change): + trace_structured( + "artifact", + metadata_fn=lambda: { + "name": f"{pattern_matcher_pass.pass_name}_pre_grad", + "encoding": "string", + }, + payload_fn=lambda: gm.print_readable( + print_output=False, include_stride=True, include_device=True + ), + ) + # TODO: move efficient_conv_bn_eval_pass to the fusions dict too. + efficient_conv_bn_eval_pass.apply(gm.graph) # type: ignore[arg-type] + + if config.pre_grad_custom_pass is not None: + GraphTransformObserver(gm, "pre_grad_custom_pass").apply_graph_pass( + config.pre_grad_custom_pass + ) + stable_topological_sort(gm.graph) + + from .quantization import quant_lift_up + + quant_lift_up(gm) + + gm.graph.lint() + gm.recompile() + + if ( + config.pattern_matcher + and hasattr(config, "fx_passes_numeric_check") + and config.fx_passes_numeric_check.get("pre_grad", False) + and example_inputs is not None + ): + from .numeric_utils import numeric_check_if_enabled + + gm_after_fx_passes = gm.__copy__() + numeric_check_if_enabled( + gm_before_fx_passes, # type: ignore[possibly-undefined] + gm_after_fx_passes, + example_inputs, + config.fx_passes_numeric_check.get("num_iterations", 1), + config.fx_passes_numeric_check.get("precision", 1e-4), + ) + + return gm + + +def fuse_fx(gm: torch.fx.GraphModule, example_inputs) -> torch.fx.GraphModule: + is_cpu = is_cpu_device(example_inputs) + # pyre-fixme[16]: Module `torch._dynamo.utils` has no attribute `detect_fake_mode` + fake_mode = detect_fake_mode(example_inputs) + + gm = sink_cat_after_pointwise(gm) + if config.permute_fusion and not is_cpu: + # For linear permute fusion, we need to check input info to identify + # and perform proper permutation/transpose + ShapeProp(gm, fake_mode=fake_mode).propagate(*example_inputs) + with GraphTransformObserver(gm, "linear_permute_fusion"): + gm = linear_permute_fusion(gm) + with GraphTransformObserver(gm, "permute_linear_fusion"): + gm = permute_linear_fusion(gm) + with GraphTransformObserver(gm, "permute_matmul_fusion"): + gm = permute_matmul_fusion(gm) + + # make sure the autograd is disabled. + if torch.is_grad_enabled() or not is_cpu: + return gm + if config.freezing: + with GraphTransformObserver(gm, "remove_identity"): + gm = remove_identity(gm) + with GraphTransformObserver(gm, "fuse_conv_bn"): + gm = fuse_conv_bn(gm) + return gm + + +def fetch_attr(target: str, mod): + target_atoms = target.split(".") + attr_itr = mod + for i, atom in enumerate(target_atoms): + if not hasattr(attr_itr, atom): + raise RuntimeError( + f"Node referenced nonexistent target {'.'.join(target_atoms[:i])}" + ) + attr_itr = getattr(attr_itr, atom) + return attr_itr + + +def remove_identity(gm: torch.fx.GraphModule) -> torch.fx.GraphModule: + """ + Removes all identity layers from the module. + """ + + class IdentityRemover(torch.fx.Transformer): + def call_module(self, target, args, kwargs): + if isinstance(self.submodules[target], nn.Identity): + assert len(args) == 1 + return args[0] + else: + return super().call_module(target, args, kwargs) + + return IdentityRemover(gm).transform() + + +def fuse_conv_bn(gm: torch.fx.GraphModule, inplace=False) -> torch.fx.GraphModule: + """ + Fuses Convolution/BN layers for inference purposes. + """ + modules_patterns = [ + (torch.nn.Conv1d, torch.nn.BatchNorm1d), + (torch.nn.Conv2d, torch.nn.BatchNorm2d), + (torch.nn.Conv3d, torch.nn.BatchNorm3d), + ] + module_function_patterns = [ + (torch.nn.Conv1d, F.batch_norm), + (torch.nn.Conv2d, F.batch_norm), + (torch.nn.Conv3d, F.batch_norm), + ] + modules = dict(gm.named_modules()) + + class ConvBNFusion: + def __init__( + self, + bn_node, + conv_module, + bn_module=None, # For BN Module + bn_running_mean=None, # For Functional BN + bn_running_var=None, + bn_eps=None, + bn_weight=None, + bn_bias=None, + ) -> None: + self.bn_nodes = [ + bn_node, + ] + self.conv_module = conv_module + self.bn_module = bn_module + self.bn_running_mean = bn_running_mean + self.bn_running_var = bn_running_var + self.bn_eps = bn_eps + self.bn_weight = bn_weight + self.bn_bias = bn_bias + self.fusion_enabled = True + + def add_bn_node(self, bn_node): + self.bn_nodes.append(bn_node) + + def disable_fusion(self): + self.fusion_enabled = False + + def is_fusion_enabled(self): + return self.fusion_enabled + + conv_bn_to_fuse: dict[int, ConvBNFusion] = {} + for pattern in modules_patterns: + conv_bn_to_fuse.clear() + for node in gm.graph.nodes: + if matches_module_pattern(pattern, node, modules): + if len(node.args[0].users) > 1: # Output of conv is used by other nodes + continue + conv = modules[node.args[0].target] + bn = modules[node.target] + eval_mode = all(not n.training for n in [conv, bn]) + if not eval_mode: + continue + if not bn.track_running_stats: + continue + + # Do hash based on the module name of conv + hash_id = hash(node.args[0].target) + if hash_id not in conv_bn_to_fuse: + conv_bn_to_fuse[hash_id] = ConvBNFusion(node, conv, bn) + else: + if bn == conv_bn_to_fuse[hash_id].bn_module: + # Do fusion if same bn module + conv_bn_to_fuse[hash_id].add_bn_node(node) + else: + # Disable the conv bn folding if conv shared by different bn + conv_bn_to_fuse[hash_id].disable_fusion() + + for conv_bn_fusion in conv_bn_to_fuse.values(): + if conv_bn_fusion.is_fusion_enabled(): + bn_nodes = conv_bn_fusion.bn_nodes + conv = conv_bn_fusion.conv_module + bn = conv_bn_fusion.bn_module + + # pyrefly: ignore [bad-argument-type] + fused_conv = fuse_conv_bn_eval(conv, bn) + for bn_node in bn_nodes: + replace_node_module(bn_node.args[0], modules, fused_conv) + bn_node.replace_all_uses_with(bn_node.args[0]) + gm.graph.erase_node(bn_node) + + gm.graph.lint() + for pattern in module_function_patterns: + conv_bn_to_fuse.clear() + for node in gm.graph.nodes: + if matches_module_function_pattern(pattern, node, modules): + # TODO: support kwargs. + if len(node.args) != 8: + continue + conv = modules[node.args[0].target] + bn_training = node.args[5] + bn_eps = node.args[7] + if conv.training or bn_training: + continue + if type(bn_eps) is not float: + continue + + def _used_by_same_conv_module(users): + conv_module_name = users[0].args[0].target + return all( + conv_module_name == user.args[0].target for user in users + ) + + bn_args_is_constant = all( + n.op == "get_attr" + and (len(n.users) == 1 or _used_by_same_conv_module(list(n.users))) + for n in node.args[1:5] + ) + if not bn_args_is_constant: + continue + bn_running_mean = fetch_attr(node.args[1].target, gm) + bn_running_var = fetch_attr(node.args[2].target, gm) + bn_weight = fetch_attr(node.args[3].target, gm) + bn_bias = fetch_attr(node.args[4].target, gm) + if bn_running_mean is None or bn_running_var is None: + continue + + # Do hash based on the module name of conv + hash_id = hash(node.args[0].target) + if hash_id not in conv_bn_to_fuse: + conv_bn_to_fuse[hash_id] = ConvBNFusion( + node, + conv, + bn_running_mean=bn_running_mean, + bn_running_var=bn_running_var, + bn_eps=bn_eps, + bn_weight=bn_weight, + bn_bias=bn_bias, + ) + else: + if ( + hash(bn_running_mean) + == hash(conv_bn_to_fuse[hash_id].bn_running_mean) + and hash(bn_running_var) + == hash(conv_bn_to_fuse[hash_id].bn_running_var) + and torch.allclose( + torch.tensor(bn_eps), + torch.tensor(conv_bn_to_fuse[hash_id].bn_eps), + ) + and hash(bn_weight) == hash(conv_bn_to_fuse[hash_id].bn_weight) + and hash(bn_bias) == hash(conv_bn_to_fuse[hash_id].bn_bias) + ): + # Do fusion if same functional bn + conv_bn_to_fuse[hash_id].add_bn_node(node) + else: + # Disable the conv bn folding if conv shared by different bn + conv_bn_to_fuse[hash_id].disable_fusion() + + for conv_bn_fusion in conv_bn_to_fuse.values(): + if conv_bn_fusion.is_fusion_enabled(): + bn_nodes = conv_bn_fusion.bn_nodes + conv = conv_bn_fusion.conv_module + bn_running_mean = conv_bn_fusion.bn_running_mean + bn_running_var = conv_bn_fusion.bn_running_var + bn_eps = conv_bn_fusion.bn_eps + bn_weight = conv_bn_fusion.bn_weight + bn_bias = conv_bn_fusion.bn_bias + + fused_conv = copy.deepcopy(conv) + fused_conv.weight, fused_conv.bias = fuse_conv_bn_weights( + fused_conv.weight, + fused_conv.bias, + # pyrefly: ignore [bad-argument-type] + bn_running_mean, + # pyrefly: ignore [bad-argument-type] + bn_running_var, + # pyrefly: ignore [bad-argument-type] + bn_eps, + bn_weight, + bn_bias, + ) + for bn_node in bn_nodes: + replace_node_module(bn_node.args[0], modules, fused_conv) + bn_node.replace_all_uses_with(bn_node.args[0]) + gm.graph.erase_node(bn_node) + gm.graph.lint() + gm.recompile() + + return gm + + +class NormalizedLinearNode: + def __init__(self, node: torch.fx.Node) -> None: + assert node.op == "call_function" + assert node.target is torch.nn.functional.linear + self.node: torch.fx.Node = node + + def get_input(self) -> torch.fx.Node: + if len(self.node.args) > 0: + return self.node.args[0] # type: ignore[return-value] + else: + return self.node.kwargs["input"] # type: ignore[return-value] + + def get_weight(self) -> torch.fx.Node: + if len(self.node.args) > 1: + return self.node.args[1] # type: ignore[return-value] + else: + return self.node.kwargs["weight"] # type: ignore[return-value] + + def get_bias(self) -> torch.fx.Node: + if len(self.node.args) > 2: + return self.node.args[2] # type: ignore[return-value] + else: + return self.node.kwargs.get("bias", None) # type: ignore[return-value] + + +class NormalizedMatmulNode: + def __init__(self, node: torch.fx.Node) -> None: + assert node.op == "call_function" + assert node.target in [torch.bmm, torch.matmul] + self.node: torch.fx.Node = node + + def get_input(self) -> torch.fx.Node: + if len(self.node.args) > 0: + return self.node.args[0] # type: ignore[return-value] + else: + return self.node.kwargs["input"] # type: ignore[return-value] + + def get_other(self) -> torch.fx.Node: + if len(self.node.args) > 1: + return self.node.args[1] # type: ignore[return-value] + else: + return self.node.kwargs["other"] # type: ignore[return-value] + + +def check_permute(node: torch.fx.Node) -> bool: + ranks = len(node.meta["tensor_meta"].shape) + if len(node.args) > 3: + permutation = [node.args[i] % ranks for i in range(1, ranks + 1)] # type: ignore[operator] + elif ( + "permutation" in node.kwargs + and node.kwargs["permutation"] is not None + and len(node.kwargs["permutation"]) > 2 # type: ignore[arg-type] + ): + permutation = [i % ranks for i in node.kwargs["permutation"]] # type: ignore[operator, union-attr] + else: + return False + allowed_permutation = list(range(ranks)) + allowed_permutation[-1] = ranks - 2 + allowed_permutation[-2] = ranks - 1 + return permutation == allowed_permutation + + +def sink_cat_after_pointwise(module: torch.fx.GraphModule) -> torch.fx.GraphModule: + def one_user(node): + users = list(node.users) + return users[0] if len(users) == 1 else None + + def is_view(node): + return node.op == "call_method" and node.target == "view" + + def is_pointwise_unary(node): + ops = "call_function", "call_method" + pointwise = torch.relu, torch.tanh, "relu", "tanh" + return node.op in ops and node.target in pointwise + + g = module.graph + for node in g.nodes: + if node.op != "call_function" or node.target != torch.cat: + continue + + cat_or_view = node + while True: + user = one_user(cat_or_view) + if not user or not is_view(user): + break + cat_or_view = user + + if user and is_pointwise_unary(user): + with g.inserting_before(node): + + def cat_args(tensors, dim=0): + return tensors, dim + + tensors, dim = cat_args(*node.args, **node.kwargs) + new_kwargs = { + name: val for name, val in user.kwargs.items() if name != "input" + } + new_tensors = [ + g.create_node(user.op, user.target, args=(arg,), kwargs=new_kwargs) + for arg in tensors + ] + new_cat = g.create_node( + "call_function", torch.cat, args=(new_tensors, dim) + ) + user.replace_all_uses_with(cat_or_view) + node.replace_all_uses_with(new_cat) + g.erase_node(user) + g.erase_node(node) + g.lint() + module.recompile() + return module + + +def linear_permute_fusion(module: torch.fx.GraphModule) -> torch.fx.GraphModule: + for node in module.graph.find_nodes(op="call_method", target="permute"): + if check_permute(node): + if len(node.args) > 0: + input_node = node.args[0] + else: + input_node = node.kwargs["input"] + if ( + input_node.op == "call_function" + and input_node.target is torch.nn.functional.linear + ): + normalized = NormalizedLinearNode(input_node) + input = normalized.get_input() + weight = normalized.get_weight() + bias = normalized.get_bias() + with module.graph.inserting_before(node): + fused_node = module.graph.call_function( + linear_transpose, args=(input, weight, bias) + ) + node.replace_all_uses_with(fused_node) + module.graph.erase_node(node) + if len(input_node.users) == 0: + module.graph.erase_node(input_node) + + module.graph.lint() + module.recompile() + return module + + +# Y1 = X * W^T + bias +# Y2 = Y1.permute(0, 2, 1) +# ----> +# Y2 = (W * X^T + bias.unsqueeze(-1))^T +def linear_transpose( + input: torch.Tensor, weight: torch.Tensor, bias: torch.Tensor | None +) -> torch.Tensor: + if bias is None: + return torch.matmul(weight, input.transpose(-1, -2)) + return torch.matmul(weight, input.transpose(-1, -2)) + bias.unsqueeze(-1) + + +def permute_linear_fusion(module: torch.fx.GraphModule) -> torch.fx.GraphModule: + for node in module.graph.find_nodes( + op="call_function", target=torch.nn.functional.linear + ): + if len(node.args) > 0: + input_node = node.args[0] + else: + input_node = node.kwargs["input"] + if ( + input_node.op == "call_method" + and input_node.target == "permute" + and check_permute(input_node) + ): + normalized = NormalizedLinearNode(node) + if len(input_node.args) > 0: + input = input_node.args[0] + else: + input = input_node.kwargs["input"] + weight = normalized.get_weight() + bias = normalized.get_bias() + with module.graph.inserting_before(node): + fused_node = module.graph.call_function( + transpose_linear, args=(input, weight, bias) + ) + node.replace_all_uses_with(fused_node) + module.graph.erase_node(node) + if len(input_node.users) == 0: + module.graph.erase_node(input_node) + + module.graph.lint() + module.recompile() + return module + + +def permute_matmul_fusion(module: torch.fx.GraphModule) -> torch.fx.GraphModule: + for node in itertools.chain( + module.graph.find_nodes(op="call_function", target=torch.bmm), + module.graph.find_nodes(op="call_function", target=torch.matmul), + ): + normalized = NormalizedMatmulNode(node) + input_A_node = normalized.get_input() + input_B_node = normalized.get_other() + input_A = input_A_node + input_B = input_B_node + Atrans = Btrans = False + if ( + input_A_node.op == "call_method" + and input_A_node.target == "permute" + and check_permute(input_A_node) + ): + Atrans = True + if len(input_A_node.args) > 0: + input_A = input_A_node.args[0] # type: ignore[assignment] + else: + input_A = input_A_node.kwargs["input"] # type: ignore[assignment] + + if ( + input_B_node.op == "call_method" + and input_B_node.target == "permute" + and check_permute(input_B_node) + ): + Btrans = True + if len(input_B_node.args) > 0: + input_B = input_B_node.args[0] # type: ignore[assignment] + else: + input_B = input_B_node.kwargs["input"] # type: ignore[assignment] + + if Atrans or Btrans: + with module.graph.inserting_before(node): + fused_node = module.graph.call_function( + transpose_matmul, + args=(input_A, input_B, Atrans, Btrans), + ) + node.replace_all_uses_with(fused_node) + module.graph.erase_node(node) + if Atrans and len(input_A_node.users) == 0: + module.graph.erase_node(input_A_node) + if Btrans and len(input_B_node.users) == 0: + module.graph.erase_node(input_B_node) + + module.graph.lint() + module.recompile() + return module + + +# X1 = X.permute(0, 2, 1) +# Y1 = X1 * W1^T + bias1 +# ----> +# Y2 = X1.transpose(-1, -2) * W1^T + bias1 +def transpose_linear( + input: torch.Tensor, weight: torch.Tensor, bias: torch.Tensor | None +) -> torch.Tensor: + if bias is None: + return torch.matmul(input.transpose(-1, -2), weight.t()) + return torch.matmul(input.transpose(-1, -2), weight.t()) + bias + + +def transpose_matmul( + A: torch.Tensor, B: torch.Tensor, Atrans: bool, Btrans: bool +) -> torch.Tensor: + if Atrans: + A = A.transpose(-1, -2) + if Btrans: + B = B.transpose(-1, -2) + return torch.matmul(A, B) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/quantization.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/quantization.py new file mode 100644 index 0000000000000000000000000000000000000000..951a62acf227610007db48a9aae1aa6795d01ee8 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/quantization.py @@ -0,0 +1,3968 @@ +# mypy: allow-untyped-decorators +# mypy: allow-untyped-defs +import copy +import functools +import itertools +import math +import operator +from typing import Any + +import torch +from torch._dynamo.utils import counters +from torch.fx.experimental.symbolic_shapes import has_free_symbols +from torch.fx.node import map_arg + +from .. import config +from ..lowering import lowerings as L, require_channels_last +from ..pattern_matcher import ( + Arg, + CallFunction, + filter_nodes, + KeywordArg, + ListOf, + Match, + stable_topological_sort, +) +from ..utils import pad_listlike +from .freezing_patterns import register_freezing_graph_pattern +from .post_grad import register_lowering_pattern + + +aten = torch.ops.aten +prims = torch.ops.prims +quantized_decomposed = torch.ops.quantized_decomposed +quantized = torch.ops.quantized + +# Only for per tensor quant since permute may changes the channel idx +_PER_TENSOR_QUANTIZE_OPS = [ + quantized_decomposed.quantize_per_tensor.default, + quantized_decomposed.quantize_per_tensor.tensor, +] + +_VIEW_OPS = [ + aten.transpose.int, + aten.permute.default, + aten.view.default, + aten.reshape.default, +] + +""" +The quantization.py file primarily incorporates passes related to quantization fusion +in inductor, includes: +1. Dequant Promotion; +2. Conv/GEMM weight prepack with oneDNN Library; +3. Conv/GEMM quantization fusion with output quant node (if have); +4. Other pointwise operators' quantization fusion like: qmaxpool2d, qcat and more; + +It also involves int8-mixed-fp32 and int8-mixed-bf16 quantization. The main difference +of patterns for int8-mixed-bf16, comparing with int8-mixed-fp32, is +1. There is to(dtype=torch.bfloat16) node at the inputs of activation and weight for Conv/GEMM. +2. There is to(dtype=torch.float32) node at the outputs of Conv/GEMM before inputs to next quant node. +Refer to: https://github.com/pytorch/pytorch/issues/111640 for detail design of int8-mixed-bf16 +quantization. +""" + + +def _get_pattern_output_dtype(match: Match): + """ + Get the pattern's output dtype from node's meta + Assume only 1 output node in this matched pattern. + """ + pattern_output_nodes = match.output_nodes() + assert len(pattern_output_nodes) == 1 + output_node = pattern_output_nodes[0] + assert isinstance(output_node, torch.fx.Node) + output_dtype = output_node.meta["val"].dtype + assert output_dtype in [ + torch.int8, + torch.uint8, + torch.float32, + torch.bfloat16, + torch.float8_e4m3fn, + ] + return output_dtype + + +def _may_generate_pattern_with_dtype_convert( + pattern, dtype=Arg(), with_dtype_convert=True, users=1 +): + if with_dtype_convert: + return CallFunction( + prims.convert_element_type.default, + pattern, + dtype, + _users=users, + ) + else: + return pattern + + +def _may_generate_pattern_with_reshape(pattern, reshape_size=Arg(), with_reshape=True): + if with_reshape: + return CallFunction( + torch.ops.aten.reshape.default, + pattern, + reshape_size, + ) + else: + return pattern + + +def _generate_linear_t_pattern( + _dequant_per_channel_pattern, + dtype, +): + assert dtype in [torch.float32, torch.bfloat16] + t_pattern = CallFunction( + aten.permute.default, + _may_generate_pattern_with_dtype_convert( + _dequant_per_channel_pattern, + KeywordArg("autocast_wgt_dtype"), + dtype == torch.bfloat16, + ), + KeywordArg("permute_axes"), + ) + return t_pattern + + +def _unary_fusion_pattern(unary_fusion, call_fn, users, is_bf16): + # only insert to_dtype if is_bf16 is True + computation_call = _may_generate_pattern_with_dtype_convert( + call_fn, dtype=KeywordArg("to_float"), with_dtype_convert=is_bf16, users=users + ) + return unary_fusion(computation_call) + + +def get_dequantize_per_tensor_activation_pattern(is_tensor_overload=False): + dequantize_per_tensor_activation_pattern = CallFunction( + quantized_decomposed.dequantize_per_tensor.tensor + if is_tensor_overload + else quantized_decomposed.dequantize_per_tensor.default, + KeywordArg("x"), + KeywordArg("x_scale"), + KeywordArg("x_zp"), + KeywordArg("x_quant_min"), + KeywordArg("x_quant_max"), + KeywordArg("x_dq_dtype"), + ) + return dequantize_per_tensor_activation_pattern + + +dequantize_per_channel_weight_pattern = CallFunction( + quantized_decomposed.dequantize_per_channel.default, + KeywordArg("q_weight"), + KeywordArg("w_scale"), + KeywordArg("w_zp"), + KeywordArg("w_axis"), + KeywordArg("w_quant_min"), + KeywordArg("w_quant_max"), + KeywordArg("w_dtype"), +) + +dequantize_per_channel_to_bf16_weight_pattern = ( + _may_generate_pattern_with_dtype_convert( + dequantize_per_channel_weight_pattern, + KeywordArg("autocast_wgt_dtype"), + ) +) + +dequantize_per_channel_clone_weight_pattern = CallFunction( + aten.clone.default, + dequantize_per_channel_weight_pattern, + memory_format=KeywordArg("memory_format"), +) + +dequantize_per_channel_to_bf16_clone_weight_pattern = CallFunction( + aten.clone.default, + dequantize_per_channel_to_bf16_weight_pattern, + memory_format=KeywordArg("memory_format"), +) + + +def get_qconv_pt2e_pattern(x_scale_zp_are_tensors=False, users=1): + qconv_op = ( + torch.ops.onednn.qconv_pointwise.tensor + if x_scale_zp_are_tensors + else torch.ops.onednn.qconv_pointwise.default + ) + return CallFunction( + qconv_op, + KeywordArg("x"), + KeywordArg("x_scale"), + KeywordArg("x_zp"), + KeywordArg("packed_weight"), + KeywordArg("w_scale"), + KeywordArg("w_zp"), + KeywordArg("b"), + KeywordArg("stride"), + KeywordArg("padding"), + KeywordArg("dilation"), + KeywordArg("groups"), + KeywordArg("output_scale"), + KeywordArg("output_zero_point"), + KeywordArg("output_dtype"), + KeywordArg("postop_name"), + KeywordArg("postop_args"), + KeywordArg("postop_algorithm"), + _users=users, + ) + + +def get_qconv2d_binary_pt2e_pattern(x_scale_zp_are_tensors=False, users=1): + qconv_op = ( + torch.ops.onednn.qconv2d_pointwise.binary_tensor + if x_scale_zp_are_tensors + else torch.ops.onednn.qconv2d_pointwise.binary + ) + return CallFunction( + qconv_op, + KeywordArg("x"), + KeywordArg("x_scale"), + KeywordArg("x_zp"), + KeywordArg("packed_weight"), + KeywordArg("w_scale"), + KeywordArg("w_zp"), + KeywordArg("accum"), + KeywordArg("b"), + KeywordArg("stride"), + KeywordArg("padding"), + KeywordArg("dilation"), + KeywordArg("groups"), + KeywordArg("output_scale"), + KeywordArg("output_zero_point"), + KeywordArg("output_dtype"), + KeywordArg("accum_scale"), + KeywordArg("accum_zero_point"), + KeywordArg("binary_op_name"), + KeywordArg("alpha"), + KeywordArg("unary_op_name"), + KeywordArg("unary_op_args"), + KeywordArg("unary_op_algorithm"), + _users=users, + ) + + +def get_qlinear_pt2e_pattern(x_scale_zp_are_tensors, users=1): + qlinear_op = ( + torch.ops.onednn.qlinear_pointwise.tensor + if x_scale_zp_are_tensors + else torch.ops.onednn.qlinear_pointwise.default + ) + return CallFunction( + qlinear_op, + KeywordArg("x"), + KeywordArg("x_scale"), + KeywordArg("x_zp"), + KeywordArg("packed_weight"), + KeywordArg("w_scale"), + KeywordArg("w_zp"), + KeywordArg("b"), + KeywordArg("output_scale"), + KeywordArg("output_zero_point"), + KeywordArg("output_dtype"), + KeywordArg("postop_name"), + KeywordArg("postop_args"), + KeywordArg("postop_algorithm"), + _users=users, + ) + + +def get_qlinear_binary_pt2e_pattern(x_scale_zp_are_tensors, users=1): + qlinear_op = ( + torch.ops.onednn.qlinear_pointwise.binary_tensor + if x_scale_zp_are_tensors + else torch.ops.onednn.qlinear_pointwise.binary + ) + return CallFunction( + qlinear_op, + KeywordArg("x"), + KeywordArg("x_scale"), + KeywordArg("x_zp"), + KeywordArg("packed_weight"), + KeywordArg("w_scale"), + KeywordArg("w_zp"), + KeywordArg("x_2"), + KeywordArg("b"), + KeywordArg("output_scale"), + KeywordArg("output_zero_point"), + KeywordArg("output_dtype"), + KeywordArg("x2_scale"), + KeywordArg("x2_zp"), + KeywordArg("binary_op_name"), + KeywordArg("alpha"), + KeywordArg("unary_op_name"), + KeywordArg("unary_op_args"), + KeywordArg("unary_op_algorithm"), + _users=users, + ) + + +dequantize_accum_pattern = CallFunction( + quantized_decomposed.dequantize_per_tensor.default, + KeywordArg("accum"), + KeywordArg("accum_scale"), + KeywordArg("accum_zp"), + Arg(), + Arg(), + KeywordArg("accum_dq_dtype"), +) + + +def generate_pattern_with_binary( + binary_post_op, + computation_call, + extra_input_pattern, + dtype_convert=False, + swap_inputs=False, +): + binary_pattern = ( + CallFunction( + binary_post_op, + extra_input_pattern, + computation_call, + ) + if swap_inputs + else CallFunction( + binary_post_op, + computation_call, + extra_input_pattern, + ) + ) + return _may_generate_pattern_with_dtype_convert( + binary_pattern, + KeywordArg("convert_dtype_after_inplace_add"), + dtype_convert, + ) + + +def generate_pattern_with_unary(computation_call, unary_post_op): + if unary_post_op is not None: + return CallFunction( + unary_post_op, + computation_call, + ) + return computation_call + + +def generate_pattern_with_output_quant(computation_call, with_dtype_convert=False): + quantized_op_output_pattern_pt2e = CallFunction( + quantized_decomposed.quantize_per_tensor.default, + _may_generate_pattern_with_dtype_convert( + computation_call, + Arg(), + with_dtype_convert, + ), + KeywordArg("o_inv_scale"), + KeywordArg("o_zp"), + KeywordArg("o_qmin"), + KeywordArg("o_qmax"), + KeywordArg("o_dtype"), + ) + return quantized_op_output_pattern_pt2e + + +def _check_node_kwarg_arg_value(check_node, kwarg_name, args_index, expected_value): + if kwarg_name in check_node.kwargs: + actual_value = check_node.kwargs[kwarg_name] + return actual_value == expected_value + else: + assert len(check_node.args) >= (args_index + 1) + actual_value = check_node.args[args_index] + return actual_value == expected_value + + +def _is_valid_quantized_conv_optimization_pattern(): + def fn(match): + output_dtype = _get_pattern_output_dtype(match) + if output_dtype in [torch.float32, torch.bfloat16]: + # Only keep matched pattern with same output_dtype + qconv_node_after_weight_prepack = filter_nodes( + match.nodes, torch.ops.onednn.qconv_pointwise + )[0] + return _check_node_kwarg_arg_value( + qconv_node_after_weight_prepack, "output_dtype", 13, output_dtype + ) + return True + + return fn + + +def _is_valid_qconv_post_op_fusion_pattern(has_binary_post_op=False): + return ( + _is_valid_qconv_binary_optimization_pattern() + if has_binary_post_op + else _is_valid_quantized_conv_optimization_pattern() + ) + + +def _is_valid_qconv_lowering_pattern(): + def fn(match): + if len(match.nodes) != 1: + return False + return match.nodes[0].target in ( + torch.ops.onednn.qconv_pointwise.default, + torch.ops.onednn.qconv_pointwise.tensor, + torch.ops.onednn.qconv2d_pointwise.binary, + torch.ops.onednn.qconv2d_pointwise.binary_tensor, + ) + + return fn + + +def _register_quantized_conv_lowering( + pattern, + pass_number, + computation_op, +): + @register_lowering_pattern( + pattern, + extra_check=_is_valid_qconv_lowering_pattern(), + pass_number=pass_number, + ) + def qconv(match: Match, *args, **kwargs): + # Activation QParams + x, x_scale, x_zp = ( + kwargs["x"], + kwargs["x_scale"], + kwargs["x_zp"], + ) + # Weight QParams + packed_weight, w_scale, w_zp = ( + kwargs["packed_weight"], + kwargs["w_scale"], + kwargs["w_zp"], + ) + # Conv Params + b, stride, padding, dilation, groups = ( + kwargs["b"], + kwargs["stride"], + kwargs["padding"], + kwargs["dilation"], + kwargs["groups"], + ) + output_dtype = _get_pattern_output_dtype(match) + assert output_dtype in [ + torch.int8, + torch.uint8, + torch.float8_e4m3fn, + torch.float32, + torch.bfloat16, + ] + # Output QParams + o_inv_scale = kwargs["output_scale"] + o_zero_point = kwargs["output_zero_point"] + output_dtype = kwargs["output_dtype"] + # post op + postop_name = kwargs["postop_name"] + postop_args = kwargs["postop_args"] + postop_algorithm = kwargs["postop_algorithm"] + + computation_args = ( + x, + x_scale, + x_zp, + packed_weight, + w_scale, + w_zp, + b, + stride, + padding, + dilation, + groups, + o_inv_scale, + o_zero_point, + output_dtype, + postop_name, + postop_args, + postop_algorithm, + ) + counters["inductor"]["qconv_unary_lower_count"] += 1 + counters["inductor"]["qconv_unary_lower_nodes"] += len(match.nodes) + return L[computation_op](*computation_args) + + return qconv + + +def _is_valid_quantized_linear_optimization_pattern(): + def fn(match): + output_dtype = _get_pattern_output_dtype(match) + if output_dtype in [torch.float32, torch.bfloat16]: + # Only keep matched pattern with same output_dtype + qlinear_node_after_weight_prepack = filter_nodes( + match.nodes, torch.ops.onednn.qlinear_pointwise + )[0] + return _check_node_kwarg_arg_value( + qlinear_node_after_weight_prepack, "output_dtype", 9, output_dtype + ) + return True + + return fn + + +def _is_valid_qlinear_post_op_fusion_pattern(has_binary_post_op=False): + return ( + _is_valid_qlinear_binary_optimization_pattern() + if has_binary_post_op + else _is_valid_quantized_linear_optimization_pattern() + ) + + +def _is_valid_qlinear_lowering_pattern(): + def fn(match): + if len(match.nodes) != 1: + return False + return match.nodes[0].target in ( + torch.ops.onednn.qlinear_pointwise.default, + torch.ops.onednn.qlinear_pointwise.tensor, + torch.ops.onednn.qlinear_pointwise.binary, + torch.ops.onednn.qlinear_pointwise.binary_tensor, + ) + + return fn + + +def _register_quantized_linear_unary_lowering( + pattern, + pass_number, + computation_op, +): + @register_lowering_pattern( + pattern, + extra_check=_is_valid_qlinear_lowering_pattern(), + pass_number=pass_number, + ) + def qlinear(match: Match, *args, **kwargs): + output_dtype = _get_pattern_output_dtype(match) + # Activation QParams + x, x_scale, x_zp = ( + kwargs["x"], + kwargs["x_scale"], + kwargs["x_zp"], + ) + # Weight QParams + packed_weight, w_scale, w_zp = ( + kwargs["packed_weight"], + kwargs["w_scale"], + kwargs["w_zp"], + ) + + # bias + b = kwargs.get("b") + + # Output QParams + o_inv_scale = kwargs["output_scale"] + o_zero_point = kwargs["output_zero_point"] + + # post op + postop_name = kwargs["postop_name"] + postop_args = kwargs["postop_args"] + postop_algorithm = kwargs["postop_algorithm"] + + computation_args = ( + x, + x_scale, + x_zp, + packed_weight, + w_scale, + w_zp, + b, + o_inv_scale, + o_zero_point, + output_dtype, + postop_name, + postop_args, + postop_algorithm, + ) + counters["inductor"]["qlinear_unary_lower_count"] += 1 + counters["inductor"]["qlinear_unary_lower_nodes"] += len(match.nodes) + return L[computation_op](*computation_args) + + return qlinear + + +def _register_quantized_linear_binary_lowering( + pattern, + pass_number, + computation_op, +): + @register_lowering_pattern( + pattern, + extra_check=_is_valid_qlinear_lowering_pattern(), + pass_number=pass_number, + ) + def qlinear_binary(match: Match, *args, **kwargs): + output_dtype = _get_pattern_output_dtype(match) + assert output_dtype is not None + # Activation QParams + x, x_scale, x_zp = ( + kwargs["x"], + kwargs["x_scale"], + kwargs["x_zp"], + ) + x2 = kwargs["x_2"] + x2_scale = kwargs["x2_scale"] + x2_zp = kwargs["x2_zp"] + # Weight QParams + packed_weight, w_scale, w_zp = ( + kwargs["packed_weight"], + kwargs["w_scale"], + kwargs["w_zp"], + ) + # bias + b = kwargs.get("b") + # Output QParams + o_inv_scale = kwargs["output_scale"] + o_zero_point = kwargs["output_zero_point"] + + x2.realize() + from .mkldnn_fusion import _qlinear_binary_can_be_inplace + + binary_op_name = kwargs["binary_op_name"] + alpha = kwargs["alpha"] + unary_op_name = kwargs["unary_op_name"] + unary_op_args = kwargs["unary_op_args"] + unary_op_algorithm = kwargs["unary_op_algorithm"] + if ( + # TODO Ensure sum is safe and remove such check, i.e., + # x2 is not used by other operations + # or current qlinear sum is the last user of x2. + # This needs to be ensured when registering + # the lowering pattern of quantized_linear_binary. + binary_op_name == "sum" and (not _qlinear_binary_can_be_inplace(x2)) + ): + binary_op_name = "add" + + computation_args = ( + x, + x_scale, + x_zp, + packed_weight, + w_scale, + w_zp, + x2, + b, + o_inv_scale, + o_zero_point, + output_dtype, + x2_scale, + x2_zp, + binary_op_name, + alpha, + unary_op_name, + unary_op_args, + unary_op_algorithm, + ) + counters["inductor"]["qlinear_binary_lower_count"] += 1 + counters["inductor"]["qlinear_binary_lower_nodes"] += len(match.nodes) + return L[computation_op](*computation_args) + + return qlinear_binary + + +def _is_valid_qconv_binary_optimization_pattern(): + return _is_valid_quantized_op_binary_optimization_pattern( + torch.ops.onednn.qconv_pointwise + ) + + +def _is_valid_qlinear_binary_optimization_pattern(): + return _is_valid_quantized_op_binary_optimization_pattern( + torch.ops.onednn.qlinear_pointwise, + # we don't insert q-dq for extra input due to accuracy issues + extra_input_from_dequant=False, + ) + + +def _is_valid_quantized_op_binary_optimization_pattern( + qop, extra_input_from_dequant=True +): + # Check if it's a valid Binary Pattern for qconv2d and qlinear: + # * qop_pointwise should only has one users + # * If extra_input_from_dequant is True, extra input of binary node should come from dequant pattern + # * the two inputs of binary node should have attribute "meta" and should be tensors + # * the two inputs of binary node should have the same shape + # * All users of the extra input in this pattern should be + # ancestor nodes of the compute node, except for the binary node + # connected to the compute node. + def fn(match): + output_dtype = _get_pattern_output_dtype(match) + compute_node = filter_nodes(match.nodes, qop)[0] + # qop_pointwise should only have one user + if len(compute_node.users) != 1: + return False + binary_node_inputs = next(iter(compute_node.users)).args + assert len(binary_node_inputs) == 2, "Expects binary node with 2 inputs" + if output_dtype in [torch.float32, torch.bfloat16]: + extra_input_of_binary_node = None + for arg in binary_node_inputs: + if arg != compute_node: + extra_input_of_binary_node = arg + break + assert extra_input_of_binary_node is not None + # Extra input of binary node comes from dequant pattern + if extra_input_from_dequant and ( + (not isinstance(extra_input_of_binary_node, torch.fx.Node)) + or ( + extra_input_of_binary_node.target + != quantized_decomposed.dequantize_per_tensor.default + ) + ): + return False + + # the two inputs of binary node should have attribute "meta" and should be tensors + if not ( + hasattr(binary_node_inputs[0], "meta") + and isinstance(binary_node_inputs[0].meta.get("val", None), torch.Tensor) # type: ignore[union-attr] + ) or not ( + hasattr(binary_node_inputs[1], "meta") + and isinstance(binary_node_inputs[1].meta.get("val", None), torch.Tensor) # type: ignore[union-attr] + ): + return False + # the two inputs of binary node should have the same shape + if ( + binary_node_inputs[0].meta["val"].size() # type: ignore[union-attr] + != binary_node_inputs[1].meta["val"].size() # type: ignore[union-attr] + ): + return False + + # All users of the extra input in this pattern should be + # ancestor nodes of the compute node, except for the binary node + # connected to the compute node. + + from .mkldnn_fusion import _get_remaining_users + + extra_input_of_pattern = ( + match.kwargs["other"] + if "other" in match.kwargs + else ( + match.kwargs["accum"] + if (output_dtype in [torch.uint8, torch.int8]) + or (not extra_input_from_dequant) + else match.kwargs["accum_after_dequant"] + ) + ) + if ( + len(_get_remaining_users(extra_input_of_pattern, compute_node)) > 1 + or extra_input_of_pattern == compute_node.args[0] + ): + return False + return True + + return fn + + +def _register_quantized_conv_binary_lowering( + pattern, + pass_number, + computation_op, +): + @register_lowering_pattern( + pattern, + extra_check=_is_valid_qconv_lowering_pattern(), + pass_number=pass_number, + ) + def qconv_binary(match: Match, *args, **kwargs): + output_dtype = _get_pattern_output_dtype(match) + assert output_dtype is not None + x, x_scale, x_zp = kwargs["x"], kwargs["x_scale"], kwargs["x_zp"] + accum = kwargs["accum"] + accum_scale = kwargs["accum_scale"] + accum_zp = kwargs["accum_zero_point"] + packed_weight, w_scale, w_zp = ( + kwargs["packed_weight"], + kwargs["w_scale"], + kwargs["w_zp"], + ) + b, stride, padding, dilation, groups = ( + kwargs["b"], + kwargs["stride"], + kwargs["padding"], + kwargs["dilation"], + kwargs["groups"], + ) + # Output QParams + output_scale = kwargs["output_scale"] + output_zero_point = kwargs["output_zero_point"] + + # post ops + binary_op_name = kwargs["binary_op_name"] + alpha = kwargs["alpha"] + unary_op_name = kwargs["unary_op_name"] + unary_op_args = kwargs["unary_op_args"] + unary_op_algorithm = kwargs["unary_op_algorithm"] + + accum.realize() + from .mkldnn_fusion import _can_be_inplace + + assert _can_be_inplace(accum), ( + "QConv Binary Inplace Fusion requires accum is not an alias or mutation." + ) + + computation_args = ( + x, + x_scale, + x_zp, + packed_weight, + w_scale, + w_zp, + accum, + b, + stride, + padding, + dilation, + groups, + output_scale, + output_zero_point, + output_dtype, + accum_scale, + accum_zp, + binary_op_name, + alpha, + unary_op_name, + unary_op_args, + unary_op_algorithm, + ) + counters["inductor"]["qconv2d_binary_lower_count"] += 1 + counters["inductor"]["qconv2d_binary_lower_nodes"] += len(match.nodes) + return L[computation_op](*computation_args) + + return qconv_binary + + +def _register_quantization_unary_lowering(): + # QConv2d + for x_scale_zp_are_tensors, users in itertools.product([False, True], [1, 2]): + qconv_pattern = get_qconv_pt2e_pattern(x_scale_zp_are_tensors, users) + computation_op = ( + torch.ops.onednn.qconv_pointwise.tensor + if x_scale_zp_are_tensors + else torch.ops.onednn.qconv_pointwise.default + ) + _register_quantized_conv_lowering( + qconv_pattern, + 2, # pass_number + computation_op, + ) + + # QLinear + for x_scale_zp_are_tensors in (False, True): + qlinear_pattern = get_qlinear_pt2e_pattern(x_scale_zp_are_tensors) + computation_op = ( + torch.ops.onednn.qlinear_pointwise.tensor + if x_scale_zp_are_tensors + else torch.ops.onednn.qlinear_pointwise.default + ) + _register_quantized_linear_unary_lowering( + qlinear_pattern, + 2, # pass_number + computation_op, + ) + + +def _register_quantization_binary_lowering(): + # QConv2d + for x_scale_zp_are_tensors, users in itertools.product([False, True], [1, 2]): + qconv_pattern = get_qconv2d_binary_pt2e_pattern(x_scale_zp_are_tensors, users) + computation_op = ( + torch.ops.onednn.qconv2d_pointwise.binary_tensor + if x_scale_zp_are_tensors + else torch.ops.onednn.qconv2d_pointwise.binary + ) + _register_quantized_conv_binary_lowering( + qconv_pattern, + 2, # pass_number + computation_op, + ) + + # QLinear + for x_scale_zp_are_tensors in (False, True): + qlinear_pattern = get_qlinear_binary_pt2e_pattern(x_scale_zp_are_tensors) + computation_op = ( + torch.ops.onednn.qlinear_pointwise.binary_tensor + if x_scale_zp_are_tensors + else torch.ops.onednn.qlinear_pointwise.binary + ) + _register_quantized_linear_binary_lowering( + qlinear_pattern, + 2, # pass_number + computation_op, + ) + + +def _is_valid_quantized_maxpool2d_optimization_pattern(): + def fn(match): + # Only match the pattern which max_pool2d_with_indices returns value + # instead of indices. + get_item_node = filter_nodes(match.nodes, operator.getitem)[0] + return get_item_node.args[1] == 0 + + return fn + + +def _register_quantized_maxpool2d_lowering( + pattern, + computation_op, +): + @register_lowering_pattern( + pattern, + extra_check=_is_valid_quantized_maxpool2d_optimization_pattern(), + ) + def qmaxpool2d(match: Match, *args, **kwargs): + x = kwargs["x"] + kernel_size = kwargs["kernel_size"] + stride = kwargs.get("stride") + padding = kwargs.get("padding", 0) + dilation = kwargs.get("dilation", 1) + ceil_mode = kwargs.get("ceil_mode", False) + + if padding == 0: + padding = [0, 0] + if dilation == 1: + dilation = [1, 1] + if not stride: + stride = kernel_size + kernel_size = pad_listlike(kernel_size, 2) + stride = pad_listlike(stride, 2) + padding = pad_listlike(padding, 2) + dilation = pad_listlike(dilation, 2) + + assert len(kernel_size) == 2 + assert len(stride) == 2 + assert len(padding) == 2 + assert len(dilation) == 2 + + computation_args = ( + x, + kernel_size, + stride, + padding, + dilation, + ceil_mode, + ) + computation_args, _ = require_channels_last(computation_op, *computation_args) + counters["inductor"]["qmaxpool2d_matcher_count"] += 1 + counters["inductor"]["qmaxpool2d_matcher_nodes"] += len(match.nodes) + return L[computation_op](*computation_args) + + return qmaxpool2d + + +def _register_quantization_maxpool2d(): + # Currently, the default parameters are not in FX Graph generated by Dynamo export. + # So, if user defines nn.MaxPool2d with different assignment of default parameter, + # it will generate graph with different number of input nodes and hence + # different pattern to be matched. + # Refer to the issue: https://github.com/pytorch/pytorch/issues/105901 + max_pool2d_args_list = [ + [ + KeywordArg("stride"), + ], + [ + KeywordArg("stride"), + KeywordArg("padding"), + ], + [ + KeywordArg("stride"), + KeywordArg("padding"), + KeywordArg("dilation"), + ], + [ + KeywordArg("stride"), + KeywordArg("padding"), + KeywordArg("dilation"), + KeywordArg("ceil_mode"), + ], + ] + for max_pool2d_args in max_pool2d_args_list: + dequantize_maxpool2d_pattern = CallFunction( + aten.max_pool2d_with_indices.default, + get_dequantize_per_tensor_activation_pattern(), + KeywordArg("kernel_size"), + *max_pool2d_args, + ) + dequantize_lowmem_maxpool2d_pattern = CallFunction( + prims._low_memory_max_pool_with_offsets.default, + get_dequantize_per_tensor_activation_pattern(), + KeywordArg("kernel_size"), + *max_pool2d_args, + KeywordArg("offset_dtype"), + ) + dequantize_maxpool2d_get_item_pattern = CallFunction( + operator.getitem, + dequantize_maxpool2d_pattern, + Arg(), + ) + dequantize_lowmem_maxpool2d_get_item_pattern = CallFunction( + operator.getitem, + dequantize_lowmem_maxpool2d_pattern, + Arg(), + ) + _register_quantized_maxpool2d_lowering( + generate_pattern_with_output_quant(dequantize_maxpool2d_get_item_pattern), + quantized.max_pool2d.default, + ) + _register_quantized_maxpool2d_lowering( + generate_pattern_with_output_quant( + dequantize_lowmem_maxpool2d_get_item_pattern + ), + quantized.max_pool2d.default, + ) + + +def _is_input_output_same_scale_zp(check_node): + def fn(match): + # Ensure all the inputs and output has same scale and zero point + # Step 1: Check inputs/output zero point + # Get dequant nodes at input + dequant_nodes = filter_nodes( + match.nodes, quantized_decomposed.dequantize_per_tensor.default + ) + zero_points = [node.args[2] for node in dequant_nodes] + # Get quant nodes at output + quant_nodes = filter_nodes( + match.nodes, quantized_decomposed.quantize_per_tensor.default + ) + assert len(quant_nodes) == 1, "expect only 1 add node at output quant pattern" + zero_points.append(quant_nodes[0].args[2]) + if not all(zero_point == zero_points[0] for zero_point in zero_points): + return False + + # Step 2: Check inputs/output scale + scales = [node.args[1] for node in dequant_nodes] + scales.append(quant_nodes[0].args[1]) + if not all(math.isclose(scale, scales[0], rel_tol=1e-5) for scale in scales): # type: ignore[arg-type] + return False + + return True + + return fn + + +def _register_quantized_cat_lowering( + pattern, + computation_op, +): + @register_lowering_pattern( + pattern, + extra_check=_is_input_output_same_scale_zp(aten.cat.default), + ) + def qcat(match: Match, inputs, dim, **kwargs): + # inputs is with format: [[x1, x1_dq_dtype, x1_zp, x1_scale], ...] + uint8_inputs = [input[0] for input in inputs] + counters["inductor"]["qcat_matcher_count"] += 1 + counters["inductor"]["qcat_matcher_nodes"] += len(match.nodes) + return L[computation_op](uint8_inputs, dim) + + return qcat + + +_raw_dequantize_per_tensor_activation_pattern = CallFunction( + quantized_decomposed.dequantize_per_tensor.default, + Arg(), + Arg(), + Arg(), + Arg(), + Arg(), + Arg(), +) + + +def _register_quantization_cat(): + dequantize_cat_pattern = CallFunction( + aten.cat.default, + ListOf(_raw_dequantize_per_tensor_activation_pattern), + KeywordArg("dim"), + ) + _register_quantized_cat_lowering( + generate_pattern_with_output_quant(dequantize_cat_pattern), + aten.cat, + ) + + +def _register_quantized_reshape_lowering( + pattern, + computation_op, +): + @register_lowering_pattern( + pattern, + extra_check=_is_input_output_same_scale_zp(aten.reshape.default), + ) + def qreshape(match: Match, *args, **kwargs): + qx = kwargs["x"] + shape = kwargs["shape"] + counters["inductor"]["qreshape_matcher_count"] += 1 + counters["inductor"]["qreshape_matcher_nodes"] += len(match.nodes) + return L[computation_op](qx, shape) + + return qreshape + + +def _register_quantization_reshape(): + dequantize_reshape_pattern = CallFunction( + torch.ops.aten.reshape.default, + get_dequantize_per_tensor_activation_pattern(), + KeywordArg("shape"), + ) + _register_quantized_reshape_lowering( + generate_pattern_with_output_quant(dequantize_reshape_pattern), + aten.reshape, + ) + + +def _is_valid_concat_linear_int8_woq_optimization_pattern(): + def fn(match): + if not config.cpp.enable_concat_linear: + return False + assert all(k in match.kwargs for k in ("x", "w1", "w2", "w3", "scales")) + if not all( + hasattr(match.kwargs[key], "meta") + for key in ["x", "w1", "w2", "w3", "scales"] + ): + return False + x = match.kwargs["x"].meta["val"] + w1 = match.kwargs["w1"].meta["val"] + w2 = match.kwargs["w2"].meta["val"] + w3 = match.kwargs["w3"].meta["val"] + scales = match.kwargs["scales"].meta["val"] + if len(match.kwargs["scales"].meta["val"].size()) > 1: + return False + num_scales = match.kwargs["scales"].meta["val"].numel() + w1_cols = match.kwargs["w1"].meta["val"].size()[0] + w2_cols = match.kwargs["w2"].meta["val"].size()[0] + w3_cols = match.kwargs["w3"].meta["val"].size()[0] + return ( + # For now, we only support woq mm kernels + # with x.type=bfloat16 and w.type=int8 + x.dtype == torch.bfloat16 + and w1.dtype == torch.int8 + and w2.dtype == torch.int8 + and w3.dtype == torch.int8 + and scales.dtype == torch.bfloat16 + and x.device.type in ("cpu", "cuda") + and x.device == w1.device + and w1.device == w2.device + and w2.device == w3.device + and x.device == scales.device + and num_scales == w1_cols + w2_cols + w3_cols + ) + + return fn + + +def _is_valid_woq_optimization_pattern(): + def fn(match): + assert all(k in match.kwargs for k in ("x", "weight", "scales")) + if not all( + hasattr(match.kwargs[key], "meta") for key in ["x", "weight", "scales"] + ): + return False + x = match.kwargs["x"].meta["val"] + weight = match.kwargs["weight"].meta["val"] + scales = match.kwargs["scales"].meta["val"] + return ( + # For now, we only support woq mm kernels + # with x.type=bfloat16 and w.type=int8 + x.dtype == torch.bfloat16 + and weight.dtype == torch.int8 + and scales.dtype == torch.bfloat16 + and x.device.type in ("cpu", "cuda") + and x.device == weight.device + and x.device == scales.device + ) + + return fn + + +def _register_concat_linear_int8_woq_lowering( + pattern, computation_woq, computation_reshape +): + @register_freezing_graph_pattern( + pattern, + extra_check=_is_valid_concat_linear_int8_woq_optimization_pattern(), + pass_number=4, + ) + def woq_int8(match: Match, *args, **kwargs): + x = kwargs["x"] + w1 = kwargs["w1"] + w2 = kwargs["w2"] + w3 = kwargs["w3"] + scales = kwargs["scales"] + counters["inductor"]["woq_matcher_count"] += 1 + counters["inductor"]["woq_matcher_nodes"] += len(match.nodes) + out_features = ( + w1.meta["val"].size()[0] + + w2.meta["val"].size()[0] + + w3.meta["val"].size()[0] + ) + origin_x_size = tuple(x.meta["val"].size()) + x_shape = [-1, origin_x_size[-1]] + out_shape = list(origin_x_size[:-1] + (out_features,)) + mm_node_of_x = None + for candidate in iter(x.users.keys()): + if ( + candidate.target is aten.mm.default + and list(candidate._input_nodes)[1].target is aten.cat.default + ): + mm_node_of_x = candidate + break + assert mm_node_of_x is not None, "unable to find mm node" + _, cat_wgt_node = mm_node_of_x._input_nodes + scaling_node = next(iter(mm_node_of_x.users.keys())) + user_of_scaling_node = next(iter(scaling_node.users.keys())) + # Some other pass is making some changes that entails + # adding a node before it's used, but it can only be found when + # lint is run. stable_topological_sort() is being run before lint, + # so that error was not being being discovered. + # We call stable_topological_sort here as a workaround. + stable_topological_sort(match.graph) + with match.graph.inserting_before(user_of_scaling_node): + new_cat_node = match.graph.call_function( + aten.cat.default, + args=([w1, w2, w3], 0), + ) + x_reshape_node = match.graph.call_function( + computation_reshape, args=(x, x_shape) + ) + new_woq_node = match.graph.call_function( + computation_woq, + args=(x_reshape_node, new_cat_node, scales), + ) + new_woq_node.meta = copy.copy(x.meta) + output_reshape_node = match.graph.call_function( + computation_reshape, args=(new_woq_node, out_shape) + ) + scaling_node.replace_all_uses_with(output_reshape_node) + match.graph.erase_node(scaling_node) + match.graph.erase_node(mm_node_of_x) + match.graph.erase_node(cat_wgt_node) + match.graph.lint() + + return woq_int8 + + +def _register_woq_lowering(pattern, computation_woq, computation_reshape): + @register_lowering_pattern( + pattern, + extra_check=_is_valid_woq_optimization_pattern(), + ) + def woq_int8(match: Match, *args, **kwargs): + x = kwargs["x"] + weight = kwargs["weight"] + scales = kwargs["scales"] + counters["inductor"]["woq_matcher_count"] += 1 + counters["inductor"]["woq_matcher_nodes"] += len(match.nodes) + out_features = weight.get_size()[0] + origin_x_size = x.get_size() + x_shape = [-1, origin_x_size[-1]] + out_shape = origin_x_size[:-1] + [ + out_features, + ] + func1 = L[computation_reshape](x, x_shape) + func2 = L[computation_woq](func1, weight, scales) + return L[computation_reshape](func2, out_shape) + + return woq_int8 + + +def _register_woq_mm_int8_pattern1(): + # F.linear(x, weight.to(dtype=x.dtype)) * scales + # case of dispatching to mm, with x reshape + _woq_pattern = CallFunction( + aten.mul.Tensor, + CallFunction( + aten.reshape.default, + CallFunction( + aten.mm.default, + CallFunction(aten.reshape.default, KeywordArg("x"), Arg()), + CallFunction( + aten.permute.default, + CallFunction( + prims.convert_element_type.default, KeywordArg("weight"), Arg() + ), + Arg(), + ), + ), + Arg(), + ), + KeywordArg("scales"), + ) + _register_woq_lowering(_woq_pattern, aten._weight_int8pack_mm.default, aten.reshape) + + +def _register_woq_mm_int8_pattern2(): + # F.linear(x, weight.to(dtype=x.dtype)) * scales + # case of dispatching to mm, w/o x reshape + _woq_pattern = CallFunction( + aten.mul.Tensor, + CallFunction( + aten.reshape.default, + CallFunction( + aten.mm.default, + KeywordArg("x"), + CallFunction( + aten.permute.default, + CallFunction( + prims.convert_element_type.default, KeywordArg("weight"), Arg() + ), + Arg(), + ), + ), + Arg(), + ), + KeywordArg("scales"), + ) + _register_woq_lowering(_woq_pattern, aten._weight_int8pack_mm.default, aten.reshape) + + +def _register_woq_mm_int8_pattern3(): + # F.linear(x, weight.to(dtype=x.dtype)) * scales + # case of dispatching to bmm + _woq_pattern = CallFunction( + aten.mul.Tensor, + CallFunction( + aten.bmm.default, + CallFunction(aten.expand.default, KeywordArg("x"), Arg()), + CallFunction( + aten.expand.default, + CallFunction( + aten.permute.default, + CallFunction( + prims.convert_element_type.default, KeywordArg("weight"), Arg() + ), + Arg(), + ), + Arg(), + ), + ), + KeywordArg("scales"), + ) + _register_woq_lowering(_woq_pattern, aten._weight_int8pack_mm.default, aten.reshape) + + +def _register_woq_mm_int8_pattern4(): + _woq_pattern = CallFunction( + aten.mul.Tensor, + CallFunction( + aten.mm.default, + KeywordArg("x"), + CallFunction( + prims.convert_element_type.default, + CallFunction( + aten.permute.default, + KeywordArg("weight"), + Arg(), + ), + Arg(), + ), + ), + KeywordArg("scales"), + ) + _register_woq_lowering(_woq_pattern, aten._weight_int8pack_mm.default, aten.reshape) + + +def _register_int8_woq_concat_linear_pattern(): + def _create_wgt_node(wgt_node_name: str): + return CallFunction( + prims.convert_element_type.default, + CallFunction( + aten.permute.default, + KeywordArg(wgt_node_name), + Arg(), + ), + Arg(), + ) + + cat_wgt = CallFunction( + aten.cat.default, [_create_wgt_node(wgt) for wgt in ["w1", "w2", "w3"]], 1 + ) + + _woq_pattern = CallFunction( + aten.mul.Tensor, + CallFunction(aten.mm.default, KeywordArg("x"), cat_wgt), + KeywordArg("scales"), + ) + _register_concat_linear_int8_woq_lowering( + _woq_pattern, aten._weight_int8pack_mm.default, aten.reshape + ) + + +def _register_quantization_lowerings(): + _register_quantization_unary_lowering() + _register_quantization_binary_lowering() + _register_quantization_maxpool2d() + _register_quantization_cat() + _register_quantization_reshape() + + +def _register_woq_lowerings(): + _register_woq_mm_int8_pattern1() + _register_woq_mm_int8_pattern2() + _register_woq_mm_int8_pattern3() + _register_woq_mm_int8_pattern4() + + +def _is_valid_dequant_promotion_pattern(dtype=torch.float32): + def _inner(match): + assert dtype in [torch.float32, torch.bfloat16] + dequant_pattern_end_node = match.output_node() + if dequant_pattern_end_node.target not in [ + quantized_decomposed.dequantize_per_tensor.default, + quantized_decomposed.dequantize_per_tensor.tensor, + prims.convert_element_type.default, + aten.reshape.default, + ]: + return False + + if dequant_pattern_end_node.target is aten.reshape.default: + dequant_node = ( + dequant_pattern_end_node.args[ + 0 + ] # pattern: linear <- reshape <- dequant + if dtype == torch.float32 + else dequant_pattern_end_node.args[0].args[ + 0 + ] # pattern: linear <- reshape <- to_bf16 <- dequant + ) + else: + dequant_node = ( + dequant_pattern_end_node # pattern: linear <- dequant + if dtype == torch.float32 + else dequant_pattern_end_node.args[ + 0 + ] # pattern: linear <- to_bf16 <- dequant + ) + + if ( + dequant_node.target + in [ + quantized_decomposed.dequantize_per_tensor.default, + quantized_decomposed.dequantize_per_tensor.tensor, + ] + and len(list(dequant_pattern_end_node.users)) > 1 + ): + # If dequant pattern has more than 1 users, then do dequant promoted + return True + return False + + return _inner + + +def _register_dequant_promotion_pass(pattern, pass_number, dtype=torch.float32): + @register_freezing_graph_pattern( + pattern, + extra_check=_is_valid_dequant_promotion_pattern(dtype), + pass_number=pass_number, + ) + def dequant_promotion(match: Match, *args, **kwargs): + # Dequant_promotion will transform + # graph 1: + # quant + # + - - - | - - - + + # | dequant | + # | / \ | + # | node1 node2 | + # + - | - - - | - + + # quant quant + # into: + # graph 2: + # quant + # + - - / - \ - - + + # |dequant dequant| + # | | | | + # | node1 node2 | + # + - | - - - | - + + # quant quant + # In graph 1, the dequant node is shared by node1 and node2, + # as a result, neither node1 nor node2 could form an int8 + # fusion pattern. + # After this transformation, the graph 2 could hit the int8 + # fusion pattern: dequant-node-quant, respectively for + # node1 and node2. + assert dtype in [torch.float32, torch.bfloat16] + + def clone_to_new_node(graph, source_node, user_node): + # Clone the source_node to a new node + # Replace user_node's input from source_node to new_node + assert source_node.op == "call_function", ( + "clone_to_new_node only support node.op call_function" + ) + with graph.inserting_before(user_node): + new_node = graph.call_function( + source_node.target, + args=source_node.args, + kwargs=source_node.kwargs, + ) + new_node.meta = copy.copy(source_node.meta) + user_node.replace_input_with(source_node, new_node) + return new_node + + # Find the start node and end node of a dequant pattern + # * End node should be the match.output_node() + # * Start node should be the node of dequantize_per_tensor + dequant_pattern_end_node = match.output_node() + assert dequant_pattern_end_node.target in [ + quantized_decomposed.dequantize_per_tensor.default, + quantized_decomposed.dequantize_per_tensor.tensor, + prims.convert_element_type.default, + aten.reshape.default, + ] + + # For a dequant pattern, we should expect see the node list as: + # * OPT(aten.reshape.default) + # * OPT(prims.convert_element_type.default) (to_bf16) + # * dequantize_per_tensor + def _find_first_node_in_dequant_pattern(_node): + if _node.target in [ + quantized_decomposed.dequantize_per_tensor.default, + quantized_decomposed.dequantize_per_tensor.tensor, + ]: + # For a dequant pattern, we expect the start node is a dequantize_per_tensor node + return _node + else: + assert len(_node.args) >= 1, ( + "In in dequant pattern, each node should have more than 1 arg." + ) + return _find_first_node_in_dequant_pattern(_node.args[0]) + + dequant_pattern_start_node = _find_first_node_in_dequant_pattern( + dequant_pattern_end_node + ) + + assert dequant_pattern_start_node.target in [ + quantized_decomposed.dequantize_per_tensor.default, + quantized_decomposed.dequantize_per_tensor.tensor, + ] + + # Clone the dequant pattern for each user node + graph = match.graph + user_node_list = list(dequant_pattern_end_node.users) + for user_node in user_node_list[1:]: + _source_node = dequant_pattern_end_node + _user_node = user_node + while _source_node != dequant_pattern_start_node.args[0]: + _user_node = clone_to_new_node(graph, _source_node, _user_node) + _source_node = _source_node.args[0] # type: ignore[assignment] + + counters["inductor"]["dequant_promotion_matcher_count"] += 1 + counters["inductor"]["dequant_promotion_matcher_nodes"] += len(match.nodes) + + +def _is_valid_dequant_conv_pattern(dtype, with_dtype_convert): + def _inner(match): + # Here we do some further check to ensure: + # 1. It's a conv2d node with dim of 4, since we only support lowering of conv2d now. + # 2. The dequant pattern has only 1 user of conv2d node. + # If these conditions don't meet, we will not + # insert weight prepack node into the matched pattern. + conv_node = match.output_node() + assert conv_node.target is aten.convolution.default + input_meta_value = conv_node.args[0].meta.get("val") + weight_meta_value = conv_node.args[1].meta.get("val") + for meta_value in [input_meta_value, weight_meta_value]: + if ( + meta_value is None + or (meta_value.device.type != "cpu" and meta_value.device.type != "xpu") + or meta_value.dim() not in [3, 4] + ): + # Only support conv1d/2d now + return False + + assert dtype in [torch.float32, torch.bfloat16] + + if not with_dtype_convert: + dequant_node = conv_node.args[0] + else: + convert_to_bf16 = conv_node.args[0] + dequant_node = convert_to_bf16.args[0] + + if len(list(dequant_node.users)) != 1: + # Ensure the dequant pattern only has 1 user + # since we will delete the dequant pattern here + return False + return True + + return _inner + + +def _register_qconv_weight_prepack_pass( + pattern, pass_number, dtype=torch.float32, with_dtype_convert=False +): + @register_freezing_graph_pattern( + pattern, + extra_check=_is_valid_dequant_conv_pattern(dtype, with_dtype_convert), + pass_number=pass_number, + ) + def qconv_weight_prepack(match: Match, *args, **kwargs): + """ + Match the pattern: + int8 activation + | + dequant_per_tensor + | + Conv2d <- optional(aten.clone.default) <- dequant_per_channel <- int8_weight + + Insert weight prepack node and change the pattern to: + int8 activation + | + onednn.qconv_pointwise <- onednn.qconv_prepack <- int8_weight + """ + assert dtype in [torch.float32, torch.bfloat16] + conv_node = match.output_node() + assert conv_node.target is aten.convolution.default + if not with_dtype_convert: + dequant_node = conv_node.args[0] + else: + convert_to_bf16 = conv_node.args[0] + dequant_node = convert_to_bf16.args[0] # type: ignore[union-attr] + has_clone_to_channel_last_node_in_pattern = ( + conv_node.args[1].target is aten.clone.default # type: ignore[union-attr] + ) + clone_node = ( + conv_node.args[1] if has_clone_to_channel_last_node_in_pattern else None + ) + + if dtype == torch.float32: + dequant_per_channel = ( + clone_node.args[0] # type: ignore[union-attr] + if has_clone_to_channel_last_node_in_pattern + else conv_node.args[1] + ) + else: + weight_to_bf16_node = ( + clone_node.args[0] # type: ignore[union-attr] + if has_clone_to_channel_last_node_in_pattern + else conv_node.args[1] + ) + dequant_per_channel = weight_to_bf16_node.args[0] # type: ignore[union-attr] + + assert ( + dequant_per_channel.target # type: ignore[union-attr] + is quantized_decomposed.dequantize_per_channel.default + ) + + # Activation QParams + qx, x_zp, x_scale = ( + kwargs["x"], + kwargs["x_zp"], + kwargs["x_scale"], + ) + + # Weight QParams + qw, w_scale, w_zp = ( + kwargs["q_weight"], + kwargs["w_scale"], + kwargs["w_zp"], + ) + + # Conv Params + bias, stride, padding, dilation, groups = ( + kwargs["b"], + kwargs["stride"], + kwargs["padding"], + kwargs["dilation"], + kwargs["groups"], + ) + + x_shape = qx.meta.get("tensor_meta").shape + if has_free_symbols(x_shape): + # For dynamic shape case, we can't get activation shape ahead of runtime. + x_shape = None + graph = match.graph + with graph.inserting_before(conv_node): + # Insert weight prepack node and the QConv node + packed_weight_inputs = ( + qw, + w_scale, + x_scale, + x_zp, + stride, + padding, + dilation, + groups, + x_shape, + ) + packed_weight_op = torch.ops.onednn.qconv_prepack + prepack_weight_node = graph.call_function( + packed_weight_op, args=packed_weight_inputs + ) + + new_args: tuple[Any, ...] = ( + qx, + x_scale, + x_zp, + prepack_weight_node, + w_scale, + w_zp, + bias, + stride, + padding, + dilation, + groups, + 1.0, # output_scale + 0, # output_zero_point + dtype, # output_dtype + "none", # attr + [], # scalars + "", # algorithm + ) + new_conv_node = graph.call_function( + torch.ops.onednn.qconv_pointwise.default, args=new_args + ) + conv_node.replace_all_uses_with(new_conv_node) + new_conv_node.meta.update(conv_node.meta) + + # Erase the original conv node + graph.erase_node(conv_node) + # Erase the dequant pattern + if with_dtype_convert: + graph.erase_node(convert_to_bf16) # type: ignore[possibly-undefined, arg-type] + graph.erase_node(dequant_node) # type: ignore[arg-type] + # Erase the dequant per channel pattern + if clone_node is not None: + graph.erase_node(clone_node) # type: ignore[arg-type] + if dtype == torch.bfloat16: + graph.erase_node(weight_to_bf16_node) # type: ignore[possibly-undefined, arg-type] + graph.erase_node(dequant_per_channel) # type: ignore[arg-type] + counters["inductor"]["qconv_weight_prepack_matcher_count"] += 1 + counters["inductor"]["qconv_weight_prepack_matcher_nodes"] += len( + match.nodes + ) + + +def _generate_dequant_convolution_node_pattern( + _dequant_per_channel_pattern, dtype=torch.float32, with_dtype_convert=False +): + assert dtype in [torch.float32, torch.bfloat16] + dequant_convolution_node_pattern = CallFunction( + aten.convolution.default, + _may_generate_pattern_with_dtype_convert( + get_dequantize_per_tensor_activation_pattern(), + KeywordArg("autocast_act_dtype"), + with_dtype_convert, + ), + _dequant_per_channel_pattern, + KeywordArg("b"), + KeywordArg("stride"), + KeywordArg("padding"), + KeywordArg("dilation"), + KeywordArg("is_transposed"), + KeywordArg("out_padding"), + KeywordArg("groups"), + ) + return dequant_convolution_node_pattern + + +def _generate_qconv_weight_prepack_patterns( + dtype=torch.float32, with_dtype_convert=False +): + assert dtype in [torch.float32, torch.bfloat16] + return ( + _generate_dequant_convolution_node_pattern( + dequantize_per_channel_weight_pattern + if dtype == torch.float32 + else dequantize_per_channel_to_bf16_weight_pattern, + dtype, + with_dtype_convert, + ), + # There is another pattern due to the pass of convert_conv_weights_to_channels_last + # https://github.com/pytorch/pytorch/blob/07107919297db3f8ab37f11c12666b6d6d5f692e/torch/_inductor/freezing.py#L338-L362. + # Depend on some heuristics, it may or may not insert to(channel_last) node + # between convolution and dequant_per_channel node + _generate_dequant_convolution_node_pattern( + dequantize_per_channel_clone_weight_pattern + if dtype == torch.float32 + else dequantize_per_channel_to_bf16_clone_weight_pattern, + dtype, + with_dtype_convert, + ), + ) + + +def _get_linear_node(match, input_dim_exceeds_two, input_contiguous): + output_reshape_node = None + if input_dim_exceeds_two: + if input_contiguous: + output_reshape_node = match.output_node() + assert output_reshape_node.target is aten.reshape.default + linear_node = output_reshape_node.args[0] + else: + linear_nodes = filter_nodes(match.nodes, aten.bmm.default) + assert len(linear_nodes) == 1 + linear_node = linear_nodes[0] + else: + linear_node = match.output_node() + + assert linear_node.target in ( + aten.addmm.default, + aten.mm.default, + aten.bmm.default, + ) + return linear_node, output_reshape_node + + +def _get_linear_dq_node( + linear_node, + input_index, + input_dim_exceeds_two, + input_contiguous, + with_dtype_convert, +): + act_reshape_node = None + activation_to_bf16_node = None + act_expand_node = None + if input_dim_exceeds_two: + if input_contiguous: + act_reshape_node = linear_node.args[input_index] + assert act_reshape_node.target is aten.reshape.default + if not with_dtype_convert: + # pattern: linear -> reshape -> dequant + dequant_node = act_reshape_node.args[0] + else: + # pattern: linear -> reshape -> to_bf16 -> dequant + activation_to_bf16_node = act_reshape_node.args[0] + dequant_node = activation_to_bf16_node.args[0] + else: + # bmm pattern decomposed from linear when input dim exceeds 2 and not contiguous + act_expand_node = linear_node.args[input_index] + assert act_expand_node.target is aten.expand.default + if not with_dtype_convert: + dequant_node = act_expand_node.args[0] + else: + activation_to_bf16_node = act_expand_node.args[0] + dequant_node = activation_to_bf16_node.args[0] + else: + if not with_dtype_convert: + # pattern: linear -> dequant + dequant_node = linear_node.args[input_index] + else: + # pattern: linear -> to_bf16 -> dequant + activation_to_bf16_node = linear_node.args[input_index] + dequant_node = activation_to_bf16_node.args[0] + return dequant_node, act_reshape_node, activation_to_bf16_node, act_expand_node + + +def _is_valid_dequant_linear_pattern( + dtype, input_dim_exceeds_two, input_contiguous, with_dtype_convert +): + def _inner(match): + # Check dequant pattern has only 1 user. + ( + linear_node, + _, + ) = _get_linear_node(match, input_dim_exceeds_two, input_contiguous) + + input_index = 1 if linear_node.target is aten.addmm.default else 0 + assert dtype in [torch.float32, torch.bfloat16] + ( + dequant_node, + _, + _, + _, + ) = _get_linear_dq_node( + linear_node, + input_index, + input_dim_exceeds_two, + input_contiguous, + with_dtype_convert, + ) + + assert dequant_node.target in [ + quantized_decomposed.dequantize_per_tensor.default, + quantized_decomposed.dequantize_per_tensor.tensor, + ] + + if len(list(dequant_node.users)) != 1: + # Ensure the dequant pattern only has 1 user + # since we will delete the dequant pattern here + return False + + # Extra check for bmm pattern + if input_dim_exceeds_two and not input_contiguous: + # Check for act + # Act expand size should be exactly same as act size + act_expand_size = match.kwargs["act_expand_size"] + act_node = match.kwargs["x"] + if not ( + hasattr(act_node, "meta") + and isinstance(act_node.meta.get("val", None), torch.Tensor) + and (act_node.meta["val"].size() == torch.Size(act_expand_size)) + ): + return False + + # Check for wgt + # wgt permute dims should be [1, 0] + wgt_permute_dims = match.kwargs["permute_axes"] + if wgt_permute_dims != [1, 0]: + return False + + # Check below wgt size items: + # wgt before expand should with dim 2 + # Expand size should with dim 3 + # Expand size[0] should same as act size[0] + # Expand size[1] should same as wgt size[1] + # Expand size[2] should same as wgt size[0] + qweight_node = match.kwargs["q_weight"] + wgt_expand_size = match.kwargs["wgt_expand_size"] + if not ( + hasattr(qweight_node, "meta") + and isinstance(qweight_node.meta.get("val", None), torch.Tensor) + and len(qweight_node.meta["val"].size()) == 2 + and len(wgt_expand_size) == 3 + and wgt_expand_size[0] == act_node.meta["val"].size()[0] + and wgt_expand_size[1] == qweight_node.meta["val"].size()[1] + and wgt_expand_size[2] == qweight_node.meta["val"].size()[0] + ): + return False + + return True + + return _inner + + +def _register_qlinear_weight_prepack_pass( + pattern, + pass_number, + dtype=torch.float32, + input_dim_exceeds_two=False, + input_contiguous=True, + with_dtype_convert=False, +): + @register_freezing_graph_pattern( + pattern, + extra_check=_is_valid_dequant_linear_pattern( + dtype, input_dim_exceeds_two, input_contiguous, with_dtype_convert + ), + pass_number=pass_number, + ) + def qlinear_weight_prepack(match: Match, *args, **kwargs): + """ + Match the pattern: + int8 activation + | + dequant_per_tensor + | + mm/addmm <- t <- dequant_per_channel <- int8_weight + + Insert weight prepack node and change the pattern to: + int8 activation + | + onednn.qlinear_pointwise <- onednn.qlinear_prepack <- int8_weight + """ + assert dtype in [torch.float32, torch.bfloat16] + ( + linear_node, + output_reshape_node, + ) = _get_linear_node(match, input_dim_exceeds_two, input_contiguous) + input_index = 1 if linear_node.target is aten.addmm.default else 0 + weight_index = input_index + 1 + + ( + dequant_node, + act_reshape_node, + activation_to_bf16_node, + act_expand_node, + ) = _get_linear_dq_node( + linear_node, + input_index, + input_dim_exceeds_two, + input_contiguous, + with_dtype_convert, + ) + + if input_dim_exceeds_two and not input_contiguous: + wgt_expand_node = linear_node.args[weight_index] + assert wgt_expand_node.target is aten.expand.default + t_node = wgt_expand_node.args[0] + else: + t_node = linear_node.args[weight_index] + + if dtype == torch.float32: + dequant_per_channel = t_node.args[0] + else: + weight_to_bf16_node = t_node.args[0] + dequant_per_channel = weight_to_bf16_node.args[0] + assert ( + dequant_per_channel.target + is quantized_decomposed.dequantize_per_channel.default + ) + + # Activation QParams + qx, x_zp, x_scale = ( + kwargs["x"], + kwargs["x_zp"], + kwargs["x_scale"], + ) + + # Weight QParams + qw, w_scale, w_zp = ( + kwargs["q_weight"], + kwargs["w_scale"], + kwargs["w_zp"], + ) + + # Params + bias = kwargs.get("b") + + x_shape = qx.meta.get("tensor_meta").shape + if has_free_symbols(x_shape): + # For dynamic shape case, we can't get activation shape ahead of runtime. + x_shape = None + graph = match.graph + with graph.inserting_before(linear_node): + # Insert weight prepack node and the qlinear node + packed_weight_inputs = ( + qw, + x_shape, + ) + packed_weight_op = torch.ops.onednn.qlinear_prepack + prepack_weight_node = graph.call_function( + packed_weight_op, args=packed_weight_inputs + ) + + new_args: tuple[Any, ...] = ( + qx, + x_scale, + x_zp, + prepack_weight_node, + w_scale, + w_zp, + bias, + 1.0, # output_scale + 0, # output_zero_point + dtype, # output_dtype + "none", # post op name + [], # post op args + "", # post op algorithm + ) + Node = torch.fx.node.Node + if isinstance(x_scale, Node) and isinstance(x_zp, Node): + new_linear_node = graph.call_function( + torch.ops.onednn.qlinear_pointwise.tensor, args=new_args + ) + else: + new_linear_node = graph.call_function( + torch.ops.onednn.qlinear_pointwise.default, args=new_args + ) + if input_dim_exceeds_two: + if input_contiguous: + output_reshape_node.replace_all_uses_with(new_linear_node) + new_linear_node.meta.update(output_reshape_node.meta) + else: + if bias: + output_add_node_for_bias = match.output_node() + assert output_add_node_for_bias.target is aten.add.Tensor + output_add_node_for_bias.replace_all_uses_with(new_linear_node) + new_linear_node.meta.update(output_add_node_for_bias.meta) + else: + linear_node.replace_all_uses_with(new_linear_node) + new_linear_node.meta.update(linear_node.meta) + else: + linear_node.replace_all_uses_with(new_linear_node) + new_linear_node.meta.update(linear_node.meta) + + # Erase the original linear node + if input_dim_exceeds_two: + if input_contiguous: + graph.erase_node(output_reshape_node) + elif not input_contiguous and bias: + graph.erase_node(output_add_node_for_bias) # type: ignore[possibly-undefined] + graph.erase_node(linear_node) + if input_dim_exceeds_two: + if input_contiguous: + graph.erase_node(act_reshape_node) + else: + graph.erase_node(act_expand_node) + graph.erase_node(wgt_expand_node) # type: ignore[possibly-undefined] + if with_dtype_convert: + graph.erase_node(activation_to_bf16_node) + # Erase the dequant pattern + graph.erase_node(dequant_node) + # Erase the dequant per channel pattern + graph.erase_node(t_node) + if dtype == torch.bfloat16: + graph.erase_node(weight_to_bf16_node) # type: ignore[possibly-undefined] + graph.erase_node(dequant_per_channel) + + counters["inductor"]["qlinear_weight_prepack_matcher_count"] += 1 + counters["inductor"]["qlinear_weight_prepack_matcher_nodes"] += len( + match.nodes + ) + + +def _generate_dequant_linear_node_pattern( + _dequant_per_channel_pattern, + dtype=torch.float32, + input_dim_exceeds_two=False, + is_tensor_overload=False, + with_dtype_convert=False, +): + assert dtype in [torch.float32, torch.bfloat16] + t_pattern = _generate_linear_t_pattern(_dequant_per_channel_pattern, dtype) + dequant_linear_bias_pattern = _may_generate_pattern_with_reshape( + CallFunction( + aten.addmm.default, + KeywordArg("b"), + _may_generate_pattern_with_reshape( + _may_generate_pattern_with_dtype_convert( + get_dequantize_per_tensor_activation_pattern(is_tensor_overload), + KeywordArg("autocast_act_dtype"), + with_dtype_convert, + ), + KeywordArg("act_reshape_size"), + input_dim_exceeds_two, + ), + t_pattern, + ), + KeywordArg("output_reshape_size"), + input_dim_exceeds_two, + ) + dequant_linear_no_bias_pattern = _may_generate_pattern_with_reshape( + CallFunction( + aten.mm.default, + _may_generate_pattern_with_reshape( + _may_generate_pattern_with_dtype_convert( + get_dequantize_per_tensor_activation_pattern(is_tensor_overload), + KeywordArg("autocast_act_dtype"), + with_dtype_convert, + ), + KeywordArg("act_reshape_size"), + input_dim_exceeds_two, + ), + t_pattern, + ), + KeywordArg("output_reshape_size"), + input_dim_exceeds_two, + ) + return dequant_linear_bias_pattern, dequant_linear_no_bias_pattern + + +def _generate_dequant_bmm_node_pattern( + _dequant_per_channel_pattern, + dtype=torch.float32, + with_bias=False, + is_tensor_overload=False, + with_dtype_convert=False, +): + # When activation of linear dim exceed 2 and not contiguous + t_pattern = _generate_linear_t_pattern(_dequant_per_channel_pattern, dtype) + + assert dtype in [torch.float32, torch.bfloat16] + dequant_bmm_pattern = CallFunction( + aten.bmm.default, + CallFunction( + aten.expand.default, + _may_generate_pattern_with_dtype_convert( + get_dequantize_per_tensor_activation_pattern(is_tensor_overload), + KeywordArg("autocast_act_dtype"), + with_dtype_convert, + ), + KeywordArg("act_expand_size"), + ), + CallFunction( + aten.expand.default, + t_pattern, + KeywordArg("wgt_expand_size"), + ), + ) + + def _generate_pattern_with_output_add(_dequant_bmm_pattern, _with_bias): + if _with_bias: + return CallFunction( + aten.add.Tensor, + _dequant_bmm_pattern, + KeywordArg("b"), + ) + else: + return _dequant_bmm_pattern + + return _generate_pattern_with_output_add(dequant_bmm_pattern, with_bias) + + +def _generate_qlinear_weight_prepack_patterns( + dtype=torch.float32, + input_dim_exceeds_two=False, + input_contiguous=True, + with_bias=False, + is_tensor_overload=False, + with_dtype_convert=False, +): + if input_dim_exceeds_two and not input_contiguous: + return _generate_dequant_bmm_node_pattern( + dequantize_per_channel_weight_pattern, + dtype, + with_bias, + is_tensor_overload, + with_dtype_convert, + ) + else: + return _generate_dequant_linear_node_pattern( + dequantize_per_channel_weight_pattern, + dtype, + input_dim_exceeds_two, + is_tensor_overload, + with_dtype_convert, + ) + + +def _generate_linear_dynamic_fp16_pattern( + _dequant_weight_pattern, + input_dim_exceeds_two=False, + input_contiguous=True, + relu_fused=False, +): + dtype = torch.float32 + t_pattern = _generate_linear_t_pattern(_dequant_weight_pattern, dtype) + + if input_dim_exceeds_two and not input_contiguous: + # pattern is + # x -> expand -> bmm (-> add) (-> relu) + # w -> dequant -> permute -> expand / + pattern_no_bias = CallFunction( + aten.bmm.default, + CallFunction( + aten.expand.default, + KeywordArg("x"), + KeywordArg("act_expand_size"), + ), + CallFunction( + aten.expand.default, + t_pattern, + KeywordArg("wgt_expand_size"), + ), + ) + pattern_with_bias = CallFunction( + aten.add.Tensor, + pattern_no_bias, + KeywordArg("b"), + ) + if relu_fused: + pattern_with_bias = CallFunction(aten.relu.default, pattern_with_bias) + pattern_no_bias = CallFunction(aten.relu.default, pattern_no_bias) + return pattern_with_bias, pattern_no_bias + + x_pattern_with_reshape = _may_generate_pattern_with_reshape( + KeywordArg("x"), + KeywordArg("act_reshape_size"), + input_dim_exceeds_two, + ) + dequant_linear_bias_pattern = generate_pattern_with_unary( + _may_generate_pattern_with_reshape( + CallFunction( + aten.addmm.default, + KeywordArg("b"), + x_pattern_with_reshape, + t_pattern, + ), + KeywordArg("output_reshape_size"), + input_dim_exceeds_two, + ), + aten.relu.default if relu_fused else None, + ) + dequant_linear_no_bias_pattern = generate_pattern_with_unary( + _may_generate_pattern_with_reshape( + CallFunction( + aten.mm.default, + x_pattern_with_reshape, + t_pattern, + ), + KeywordArg("output_reshape_size"), + input_dim_exceeds_two, + ), + aten.relu.default if relu_fused else None, + ) + return dequant_linear_bias_pattern, dequant_linear_no_bias_pattern + + +def _register_dequant_promotion(): + dequant_pattern_cases = itertools.product( + [torch.float32, torch.bfloat16], [True, False], [True, False] + ) + for dtype, input_dim_exceeds_two, is_tensor_overload in dequant_pattern_cases: + # 4 dequantization patterns will be matched based on the dtype and input dimension size. + # Case 1: int8-mixed-fp32, input dim size is 2 + # Case 2: int8-mixed-fp32, input dim size exceeds 2 + # Case 3: int8-mixed-bf16, input dim size is 2 + # Case 4: int8-mixed-bf16, input dim size exceeds 2 + # quant + # + - - - - | - - - - + + # | dequant | + # | | | + # | OPT(to_bf16) | + # | | | + # | OPT(reshape) | + # | / \ | + # | node1 node2 | + # + - - | - - - | - - + + # OPT(reshape) OPT(reshape) + # + - - | - - - | - - + + # OPT(to_fp32) OPT(to_fp32) + # + - - | - - - | - - + + # quant quant + _register_dequant_promotion_pass( + _may_generate_pattern_with_reshape( + _may_generate_pattern_with_dtype_convert( + get_dequantize_per_tensor_activation_pattern( + is_tensor_overload=is_tensor_overload + ), + KeywordArg("autocast_act_dtype"), + dtype == torch.bfloat16, + ), + KeywordArg("act_reshape_size"), + with_reshape=input_dim_exceeds_two, + ), + pass_number=0, + dtype=dtype, + ) # pass_number=0 to run before weight prepack + + +def _register_qconv_weight_prepack(): + for dtype, with_dtype_convert in itertools.product( + [torch.float32, torch.bfloat16], [True, False] + ): + if dtype == torch.float32 and with_dtype_convert: + continue + weight_prepack_patterns = _generate_qconv_weight_prepack_patterns( + dtype, with_dtype_convert + ) + for weight_prepack_pattern in weight_prepack_patterns: + # Register to pass_number 1, so we can do dequant promotion in pass_number 0. + _register_qconv_weight_prepack_pass( + weight_prepack_pattern, + pass_number=1, + dtype=dtype, + with_dtype_convert=with_dtype_convert, + ) + + +def _register_qlinear_weight_prepack(): + # 6 Linear related patterns will be matched based on the dtype, input dimension size and input contiguous. + # Then convert the pattern into a QLinear node with int8_fp32/bf16. + # Case 1: int8-mixed-fp32, input dim size is 2 + # Case 2: int8-mixed-fp32, input dim size exceeds 2 and contiguous + # Case 3: int8-mixed-bf16, input dim size is 2 + # Case 4: int8-mixed-bf16, input dim size exceeds 2 and contiguous + + # + - - - - | - - - - - - | - - - - - + + # | dq_per_tensor dq_per_channel | + # | | | | + # | OPT(to_bf16) OPT(to_bf16) | + # | | | | + # | OPT(reshape) permute | + # | \ / | + # | addmm/mm | + # | | | + # | OPT(reshape) | + + # Case 5: int8-mixed-fp32, input dim size exceeds 2 and not contiguous + # Case 6: int8-mixed-bf16, input dim size exceeds 2 and not contiguous + + # + - - - - | - - - - - - | - - - - - + + # | dq_per_tensor dq_per_channel | + # | | | | + # | OPT(to_bf16) OPT(to_bf16) | + # | | | | + # | expand permute | + # | \ | | + # | expand | + # | / | + # | bmm | + # | | | + # | OPT(add) | + + linear_weight_prepack_cases = itertools.product( + [torch.float32, torch.bfloat16], [True, False], [True, False], [True, False] + ) + + # Step 1: register patterns from mm and addmm + for ( + dtype, + input_dim_exceeds_two, + is_tensor_overload, + with_dtype_convert, + ) in linear_weight_prepack_cases: + if dtype == torch.float32 and with_dtype_convert: + continue + weight_prepack_patterns = _generate_qlinear_weight_prepack_patterns( + dtype, + input_dim_exceeds_two, + is_tensor_overload=is_tensor_overload, + with_dtype_convert=with_dtype_convert, + ) + for weight_prepack_pattern in weight_prepack_patterns: + # Register to pass_number 1, so we can do dequant promotion in pass_number 0. + _register_qlinear_weight_prepack_pass( + weight_prepack_pattern, + pass_number=1, + dtype=dtype, + input_dim_exceeds_two=input_dim_exceeds_two, + with_dtype_convert=with_dtype_convert, + ) + + # Step 2: register patterns from bmm + # Linear might be decomposed into bmm when input dim exceeds 2 and not contiguous + # refer to: + # https://github.com/pytorch/pytorch/blob/80c07df659362a95da7cd4f3ec367abfdace38c4/torch/_decomp/decompositions.py#L3965-L3968 + # in this case, we can convert it back to qlinear + for ( + dtype, + with_bias, + is_tensor_overload, + with_dtype_convert, + ) in itertools.product( + [torch.float32, torch.bfloat16], [True, False], [True, False], [True, False] + ): + if dtype == torch.float32 and with_dtype_convert: + continue + bmm_pattern = _generate_qlinear_weight_prepack_patterns( + dtype=dtype, + input_dim_exceeds_two=True, + input_contiguous=False, + with_bias=with_bias, + is_tensor_overload=is_tensor_overload, + with_dtype_convert=with_dtype_convert, + ) + _register_qlinear_weight_prepack_pass( + bmm_pattern, + pass_number=1 + if with_bias + else 2, # if with_bias, there is an output add, so we should try to match it firstly + dtype=dtype, + input_dim_exceeds_two=True, + input_contiguous=False, + with_dtype_convert=with_dtype_convert, + ) + + +def _register_linear_dynamic_fp16_weight_prepack_pass( + pattern, + pass_number, + input_dim_exceeds_two=False, + input_contiguous=True, + relu_fused=False, +): + def _extra_check_fn(match: Match): + return match.kwargs["dtype_fp16"] == torch.float16 + + @register_freezing_graph_pattern( + pattern, + extra_check=_extra_check_fn, + pass_number=pass_number, + ) + def linear_dynamic_fp16_weight_prepack(match: Match, *args, **kwargs): + """ + Match the pattern: + fp32 activation + | + mm/addmm <- t <- to_fp32 <- to_fp16 <- weight + | + (reshape) <- (relu) + + OR + + fp32 activation + | + expand + | + bmm <- expand <- t <- to_fp32 <- to_fp16 <- weight + | + (add) <- (relu) + + Insert weight prepack node and change the pattern to: + fp32 activation + | + onednn.linear_dynamic_fp16 <- onednn.linear_prepack_fp16 <- weight + (or onednn.linear_relu_dynamic_fp16) + """ + # find params + x = kwargs["x"] + w = kwargs["w"] + bias = kwargs.get("b") + + # find linear node + nodes_to_find = [aten.addmm.default, aten.mm.default, aten.bmm.default] + linear_nodes = [] + for node in nodes_to_find: + linear_nodes.extend(filter_nodes(match.nodes, node)) + assert len(linear_nodes) == 1 + linear_node = linear_nodes[0] + assert isinstance(linear_node, torch.fx.node.Node) + input_index = 1 if linear_node.target is aten.addmm.default else 0 + weight_index = input_index + 1 + + # find relu node + relu_node = None + if relu_fused: + relu_node = match.output_node() + assert isinstance(relu_node, torch.fx.node.Node) + + # find reshape node, expand node and add node + ( + act_reshape_node, + output_reshape_node, + expand_x_node, + expand_w_node, + add_bias_node, + ) = (None, None, None, None, None) + t_node = None + if input_dim_exceeds_two: + if input_contiguous: + act_reshape_node = linear_node.args[input_index] + t_node = linear_node.args[weight_index] + output_reshape_node = next(iter(linear_node.users)) + assert output_reshape_node.target is aten.reshape.default + else: + expand_x_node = linear_node.args[input_index] + expand_w_node = linear_node.args[weight_index] + assert isinstance(expand_w_node, torch.fx.node.Node) + t_node = expand_w_node.args[0] + if bias: + add_bias_node = next(iter(linear_node.users)) + assert add_bias_node.target is aten.add.Tensor + else: + t_node = linear_node.args[weight_index] + assert isinstance(t_node, torch.fx.node.Node) + + w_to_fp32_node = t_node.args[0] + assert ( + isinstance(w_to_fp32_node, torch.fx.node.Node) + and w_to_fp32_node.target + is quantized_decomposed.convert_element_type.no_fuse + ) + w_to_fp16_node = w_to_fp32_node.args[0] + assert ( + isinstance(w_to_fp16_node, torch.fx.node.Node) + and w_to_fp16_node.target + is quantized_decomposed.convert_element_type.no_fuse + ) + + x_shape = x.meta.get("tensor_meta").shape + if has_free_symbols(x_shape): + # For dynamic shape case, we can't get activation shape ahead of runtime. + x_shape = None + graph = match.graph + with graph.inserting_before(linear_node): + # Insert weight prepack node and the qlinear node + packed_weight_inputs = ( + w, + x_shape, + ) + packed_weight_op = torch.ops.onednn.linear_prepack_fp16 + prepack_weight_node = graph.call_function( + packed_weight_op, args=packed_weight_inputs + ) + + # create new linear node and insert on graph + new_args: tuple[Any, ...] = ( + x, + prepack_weight_node, + bias, + ) + linear_op = ( + torch.ops.onednn.linear_relu_dynamic_fp16.default + if relu_fused + else torch.ops.onednn.linear_dynamic_fp16.default + ) + new_linear_node = graph.call_function(linear_op, args=new_args) + out_node = match.output_node() + out_node.replace_all_uses_with(new_linear_node) + + # Erase the original nodes in the reverse order + new_linear_node.meta.update(out_node.meta) + if relu_node is not None: + graph.erase_node(relu_node) + if output_reshape_node is not None: + graph.erase_node(output_reshape_node) + if add_bias_node is not None: + graph.erase_node(add_bias_node) + graph.erase_node(linear_node) + if act_reshape_node is not None: + assert isinstance(act_reshape_node, torch.fx.node.Node) + graph.erase_node(act_reshape_node) + if expand_x_node is not None: + assert isinstance(expand_x_node, torch.fx.node.Node) + graph.erase_node(expand_x_node) + if expand_w_node is not None: + assert isinstance(expand_w_node, torch.fx.node.Node) + graph.erase_node(expand_w_node) + graph.erase_node(t_node) + graph.erase_node(w_to_fp32_node) + graph.erase_node(w_to_fp16_node) + + counters["inductor"]["qlinear_weight_prepack_matcher_count"] += 1 + counters["inductor"]["qlinear_weight_prepack_matcher_nodes"] += len( + match.nodes + ) + + +def _register_linear_dynamic_fp16_weight_prepack(): + to_dtype_op = torch.ops.quantized_decomposed.convert_element_type.no_fuse + weight_pattern = CallFunction( + to_dtype_op, + CallFunction( + to_dtype_op, + KeywordArg("w"), + KeywordArg("dtype_fp16"), + ), + KeywordArg("dtype_fp32"), + ) + cases = itertools.product( + [False, True], # input_dim_exceeds_two + [True, False], # input_contiguous + [False, True], # relu fused + ) + for input_dim_exceeds_two, input_contiguous, relu_fused in cases: + patterns = _generate_linear_dynamic_fp16_pattern( + weight_pattern, + input_dim_exceeds_two, + input_contiguous, + relu_fused, + ) + for pattern in patterns: + _register_linear_dynamic_fp16_weight_prepack_pass( + pattern, + pass_number=0 if relu_fused else 1, + input_dim_exceeds_two=input_dim_exceeds_two, + input_contiguous=input_contiguous, + relu_fused=relu_fused, + ) + + +def _register_smooth_quant_int_mm_pattern(): + """ + The pattern is: + (no bias) reshape -> _int_mm -> convert_element_type -> (expand ->) mul -> mul -> reshape + or + (with bias) pattern_no_bias -> add (-> reshape -> reshape) + """ + + # When torch.compile'ing with dynamic=True, the expand node and the two tailing reshape nodes exist + # When torch.compile'ing with dynamic=False, they don't exist + def get_pattern_no_bias(expand_a_scale: bool, reshape_a: bool = True): + return CallFunction( + aten.mul.Tensor, + CallFunction( + aten.mul.Tensor, + CallFunction( + prims.convert_element_type.default, + CallFunction( + aten._int_mm.default, + CallFunction( + aten.reshape.default, + KeywordArg("a"), + KeywordArg("in_shape"), + ) + if reshape_a + else KeywordArg("a"), + KeywordArg("b"), + ), + KeywordArg("dtype"), + ), + ( + CallFunction( + aten.expand.default, + KeywordArg("x_scale"), + Arg(), + ) + if expand_a_scale + else KeywordArg("x_scale") + ), + ), + KeywordArg("w_scale"), + ) + + def _with_outer_reshape(pattern): + return CallFunction( + aten.reshape.default, pattern, KeywordArg("out_shape_no_bias") + ) + + # for torch.compile(dynamic=False) + pattern_no_bias_1 = _with_outer_reshape(get_pattern_no_bias(expand_a_scale=False)) + pattern_with_bias_1 = CallFunction( + aten.add.Tensor, + pattern_no_bias_1, + KeywordArg("bias"), + ) + # for torch.compile(dynamic=True) + pattern_no_bias_2 = _with_outer_reshape(get_pattern_no_bias(expand_a_scale=True)) + pattern_with_bias_2 = CallFunction( + aten.reshape.default, + CallFunction( + aten.reshape.default, + CallFunction( + aten.add.Tensor, + pattern_no_bias_2, + KeywordArg("bias"), + ), + Arg(), + ), + KeywordArg("out_shape_with_bias"), + ) + + # The following patterns are for torchao int8_dynamic_activation_int8_weight linear, + # when both activation and weights are symmetrically quantized. + # In practice, though, they may also match smooth-quant pattern when a 2D input shape would be used. + # Since add is not currently being used as a oneDNN post-op, but is unfused, we don't need these patterns with bias. + # Ideally, we should add mul + add post-op support in ATen int8 oneDNN linear op. + pattern1_with_no_outer_or_act_reshape = get_pattern_no_bias( + expand_a_scale=False, reshape_a=False + ) + pattern2_with_no_outer_or_act_reshape = get_pattern_no_bias( + expand_a_scale=True, reshape_a=False + ) + + def _validate_pattern(match: Match): + if len(match.nodes) not in [4, 5, 6, 7, 10]: + return False + # Make sure weight is a constant + aten_int_mm_node = filter_nodes(match.nodes, aten._int_mm.default)[0] + if not isinstance(aten_int_mm_node.args[1], torch.fx.node.Node): + return False + if aten_int_mm_node.args[1].op != "get_attr": + return False + + if len(match.nodes) == 10: + # Check the two tailing reshape nodes can be fused + if match.nodes[9].args[1] != match.nodes[6].args[1]: + return False + if len(match.nodes) == 10 or ( + len(match.nodes) == 7 and match.nodes[6].target is aten.add.Tensor + ): + bias_idx = 7 if len(match.nodes) == 10 else 6 + # Check bias shape + bias_node = match.nodes[bias_idx].args[1] + if not isinstance(bias_node, torch.fx.node.Node): + return False + if len(bias_node.meta.get("tensor_meta").shape) != 1: # type: ignore[union-attr] + return False + return True + + pattern_to_pass_number = { + pattern_no_bias_2: 0, + pattern_with_bias_2: 0, + pattern_no_bias_1: 1, + pattern_with_bias_1: 1, + pattern1_with_no_outer_or_act_reshape: 2, + pattern2_with_no_outer_or_act_reshape: 2, + } + for pattern, pass_number in pattern_to_pass_number.items(): + + @register_freezing_graph_pattern( + pattern, + extra_check=_validate_pattern, + pass_number=pass_number, + ) + def _int_mm_weight_prepack(match: Match, *args, **kwargs): + bias = kwargs.get("bias") + x = kwargs["a"] + weight = kwargs["b"] + dtype = kwargs["dtype"] + x_scale = kwargs["x_scale"] + w_scale = kwargs["w_scale"] + x_shape = x.meta.get("tensor_meta").shape + if has_free_symbols(x_shape): + # For dynamic shape case, we can't get activation shape ahead of runtime. + x_shape = None + + out_node = match.output_node() + with match.graph.inserting_before(out_node): + transpose_node = match.graph.call_function( + aten.permute.default, args=(weight, [1, 0]) + ) + contig_node = match.graph.call_function( + aten.contiguous.default, args=(transpose_node,) + ) + packed_weight_inputs = ( + contig_node, + x_shape, + ) + packed_weight_op = torch.ops.onednn.qlinear_prepack + prepack_weight_node = match.graph.call_function( + packed_weight_op, args=packed_weight_inputs + ) + + dummy_zp = None + w_scale = match.graph.call_function( + prims.convert_element_type.default, args=(w_scale, torch.float32) + ) + + x_scale_shape = x_scale.meta.get("tensor_meta").shape + x_scale_is_scalar = False + if not has_free_symbols(x_scale_shape): + prod = 1 + for d in x_scale_shape: + prod *= d + x_scale_is_scalar = prod == 1 + + new_args: tuple[Any, ...] + if x_scale_is_scalar: + # in this case, we can call onednn.qlinear directly + new_args = ( + x, + x_scale, + dummy_zp, # x_zp + prepack_weight_node, + w_scale, + dummy_zp, # w_zp + bias, + 1.0, # output_scale + 0, # output_zero_point + dtype, # output_dtype + "none", # post op name + [], # post op args + "", # post op algorithm + ) + new_linear_node = match.graph.call_function( + torch.ops.onednn.qlinear_pointwise.tensor, args=new_args + ) + out_node.replace_all_uses_with(new_linear_node) + new_linear_node.meta.update(out_node.meta) + else: + # onednn.qlinear does not support per-channel quantization of x + # so in this case, we have to apply x scale and add bias ourselves after qlinear + in_shape = kwargs.get("in_shape") + if in_shape is None: + x_reshaped = x + else: + x_reshaped = match.graph.call_function( + aten.reshape.default, args=(x, in_shape) + ) + new_args = ( + x_reshaped, + 1.0, # x_scale + 0, # x_zp + prepack_weight_node, + w_scale, + dummy_zp, # w_zp + None, # bias + 1.0, # output_scale + 0, # output_zero_point + dtype, # output_dtype + "none", # post op name + [], # post op args + "", # post op algorithm + ) + new_linear_node = match.graph.call_function( + torch.ops.onednn.qlinear_pointwise, args=new_args + ) + # apply x scale + new_out_node = match.graph.call_function( + aten.mul.Tensor, args=(new_linear_node, x_scale) + ) + + # Add bias and reshape + has_outer_reshape = ( + kwargs.get("out_shape_with_bias") is not None + or kwargs.get("out_shape_no_bias") is not None + ) + + if has_outer_reshape: + out_shape = kwargs.get( + "out_shape_with_bias", kwargs["out_shape_no_bias"] + ) + if bias is not None: + new_out_node = match.graph.call_function( + aten.add.Tensor, args=(new_out_node, bias) + ) + if has_outer_reshape: + new_out_node = match.graph.call_function( + aten.reshape.default, + args=(new_out_node, out_shape), # type: ignore[possibly-undefined] + ) + else: + if has_outer_reshape: + new_out_node = match.graph.call_function( + aten.reshape.default, + args=(new_out_node, out_shape), # type: ignore[possibly-undefined] + ) + out_node.replace_all_uses_with(new_out_node) + new_out_node.meta.update(out_node.meta) + for node in reversed(match.nodes): + match.graph.erase_node(node) + counters["inductor"]["qlinear_weight_prepack_matcher_count"] += 1 + counters["inductor"]["qlinear_weight_prepack_matcher_nodes"] += len( + match.nodes + ) + + +class PostOpAttr: + def __init__( + self, + binary_op_name: str = "none", + alpha=None, + unary_op_name: str = "none", + scalars_attr=None, + algorithm_attr=None, + ) -> None: + self.binary_op_name = binary_op_name + self.alpha = alpha if alpha else 1.0 + self.unary_op_name = unary_op_name + self.scalars_attr = scalars_attr if scalars_attr else [] + self.algorithm_attr = algorithm_attr if algorithm_attr else "" + + +def _register_qconv_post_op_fusion_pass( + pattern, + pass_number, + computation_op, + post_op_attr, +): + has_binary_post_op = post_op_attr.binary_op_name != "none" + + @register_freezing_graph_pattern( + pattern, + extra_check=_is_valid_qconv_post_op_fusion_pattern(has_binary_post_op), + pass_number=pass_number, + ) + def qconv(match: Match, *args, **kwargs): + # Activation QParams + x, x_scale, x_zp = ( + kwargs["x"], + kwargs["x_scale"], + kwargs["x_zp"], + ) + # Weight QParams + packed_weight, w_scale, w_zp = ( + kwargs["packed_weight"], + kwargs["w_scale"], + kwargs["w_zp"], + ) + # Conv Params + b, stride, padding, dilation, groups = ( + kwargs["b"], + kwargs["stride"], + kwargs["padding"], + kwargs["dilation"], + kwargs["groups"], + ) + output_dtype = _get_pattern_output_dtype(match) + assert output_dtype in [torch.int8, torch.uint8, torch.float32, torch.bfloat16] + # Output QParams + o_inv_scale = ( + kwargs["o_inv_scale"] + if (output_dtype == torch.uint8 or output_dtype == torch.int8) + else 1.0 + ) + o_zero_point = ( + kwargs["o_zp"] + if (output_dtype == torch.uint8 or output_dtype == torch.int8) + else 0 + ) + assert ( + kwargs["postop_name"] == "none" + ) # Expected no post op fused in weight prepack phase + if post_op_attr.unary_op_name == "hardtanh": + min_value = kwargs.get("min_value") + max_value = kwargs.get("max_value") + post_op_attr.scalars_attr = [min_value, max_value] + + out_node = match.output_node() + with match.graph.inserting_before(out_node): + if not has_binary_post_op: + computation_args: tuple[Any, ...] = ( + x, + x_scale, + x_zp, + packed_weight, + w_scale, + w_zp, + b, + stride, + padding, + dilation, + groups, + o_inv_scale, + o_zero_point, + output_dtype, + post_op_attr.unary_op_name, + post_op_attr.scalars_attr, + post_op_attr.algorithm_attr, + ) + else: + accum = ( + kwargs["accum"] + if output_dtype in [torch.uint8, torch.int8] + else kwargs["accum_after_dequant"] + ) + accum_scale = ( + kwargs["accum_scale"] + if output_dtype in [torch.uint8, torch.int8] + else 1.0 + ) + accum_zp = ( + kwargs["accum_zp"] + if output_dtype in [torch.uint8, torch.int8] + else 0 + ) + computation_args = ( + x, + x_scale, + x_zp, + packed_weight, + w_scale, + w_zp, + accum, + b, + stride, + padding, + dilation, + groups, + o_inv_scale, + o_zero_point, + output_dtype, + accum_scale, + accum_zp, + post_op_attr.binary_op_name, + post_op_attr.alpha, + post_op_attr.unary_op_name, + post_op_attr.scalars_attr, + post_op_attr.algorithm_attr, + ) + new_conv_node = match.graph.call_function( + computation_op, args=computation_args + ) + out_node.replace_all_uses_with(new_conv_node) + new_conv_node.meta.update(out_node.meta) + for node in reversed(match.nodes): + match.graph.erase_node(node) + count_key = ( + "qconv2d_binary_matcher_count" + if has_binary_post_op + else "qconv_unary_matcher_count" + ) + nodes_key = ( + "qconv2d_binary_matcher_nodes" + if has_binary_post_op + else "qconv_unary_matcher_nodes" + ) + counters["inductor"][count_key] += 1 + counters["inductor"][nodes_key] += len(match.nodes) + + return qconv + + +def _register_qconv_unary_fusion(): + from .mkldnn_fusion import _hardswish_fusion, _hardtanh_fusion, _silu_fusion + + for original_pattern_output_dtype in [torch.float32, torch.bfloat16]: + # Priority 1 to match: QConv2d Unary pattern with int8 output + # If a pattern1 is a sub-set of pattern2, we should try to match pattern2 firstly. + # For example: pattern1 is qconv_fp32 -> relu, pattern2 is qconv_fp32 -> relu -> quant + is_bf16 = original_pattern_output_dtype == torch.bfloat16 + conv_unary_replace_patterns = { + PostOpAttr( + "none", None, "none", [], "" + ): generate_pattern_with_output_quant( + get_qconv_pt2e_pattern(users=1), + ), + PostOpAttr( + "none", None, "relu", [], "" + ): generate_pattern_with_output_quant( + generate_pattern_with_unary( + get_qconv_pt2e_pattern(users=1), aten.relu.default + ), + ), + PostOpAttr( + "none", None, "hardtanh", [], "" + ): generate_pattern_with_output_quant( + _unary_fusion_pattern( + _hardtanh_fusion, + get_qconv_pt2e_pattern(users=1), + 1, + is_bf16, + ), + with_dtype_convert=is_bf16, + ), + PostOpAttr( + "none", None, "hardswish", [], "" + ): generate_pattern_with_output_quant( + _unary_fusion_pattern( + _hardswish_fusion, + get_qconv_pt2e_pattern(users=1 if is_bf16 else 2), + 2, + is_bf16, + ), + with_dtype_convert=is_bf16, + ), + PostOpAttr( + "none", None, "swish", [], "" + ): generate_pattern_with_output_quant( + _unary_fusion_pattern( + _silu_fusion, + get_qconv_pt2e_pattern(users=1 if is_bf16 else 2), + 2, + is_bf16, + ), + with_dtype_convert=is_bf16, + ), + } + + for unary_attr, patterns in conv_unary_replace_patterns.items(): + # Register qconv2d pattern for ExternKernel Lowering + _register_qconv_post_op_fusion_pass( + patterns, + 3, # pass_number + torch.ops.onednn.qconv_pointwise.default, # computation_op + unary_attr, # unary_attr + ) + + # Priority 2 to match: QConv2d Unary pattern with fp32/bfloat16 output + conv_unary_replace_float_out_patterns = { + PostOpAttr("none", None, "relu", [], ""): generate_pattern_with_unary( + get_qconv_pt2e_pattern(users=1), aten.relu.default + ), + PostOpAttr( + "none", None, "hardtanh", [], "" + ): _may_generate_pattern_with_dtype_convert( + _unary_fusion_pattern( + _hardtanh_fusion, + get_qconv_pt2e_pattern(users=1), + 1, + is_bf16, + ), + Arg(), + is_bf16, + ), + PostOpAttr( + "none", None, "hardswish", [], "" + ): _may_generate_pattern_with_dtype_convert( + _unary_fusion_pattern( + _hardswish_fusion, + get_qconv_pt2e_pattern(users=1 if is_bf16 else 2), + 2, + is_bf16, + ), + Arg(), + is_bf16, + ), + PostOpAttr( + "none", None, "swish", [], "" + ): _may_generate_pattern_with_dtype_convert( + _unary_fusion_pattern( + _silu_fusion, + get_qconv_pt2e_pattern(users=1 if is_bf16 else 2), + 2, + is_bf16, + ), + Arg(), + is_bf16, + ), + } + + for unary_attr, patterns in conv_unary_replace_float_out_patterns.items(): + # Register qconv2d pattern for ExternKernel Lowering + _register_qconv_post_op_fusion_pass( + patterns, + 4, # pass_number + torch.ops.onednn.qconv_pointwise.default, # computation_op + unary_attr, # unary_attr + ) + + +def _register_qconv_binary_fusion(): + for int8_mixed_bf16_with_inplace_add in [False, True]: + # Priority 1 to match: QConv2d Binary or Binary-Unary pattern with int8 output + swap_binary_inputs_list = [False, True] + binary_replace_patterns = {} + for swap_inputs in swap_binary_inputs_list: + binary_replace_patterns.update( + { + PostOpAttr( + "sum", 1.0, "none", [], "" + ): generate_pattern_with_output_quant( + generate_pattern_with_binary( + aten.add.Tensor, + get_qconv_pt2e_pattern(users=1), + dequantize_accum_pattern, + int8_mixed_bf16_with_inplace_add, + swap_inputs=swap_inputs, + ), + ), + PostOpAttr( + "sum", 1.0, "relu", [], "" + ): generate_pattern_with_output_quant( + generate_pattern_with_unary( + generate_pattern_with_binary( + aten.add.Tensor, + get_qconv_pt2e_pattern(users=1), + dequantize_accum_pattern, + int8_mixed_bf16_with_inplace_add, + swap_inputs=swap_inputs, + ), + aten.relu.default, + ), + ), + } + ) + + for binary_unary_attr, patterns in binary_replace_patterns.items(): + _register_qconv_post_op_fusion_pass( + patterns, + 3, # pass_number + torch.ops.onednn.qconv2d_pointwise.binary, # computation_op + binary_unary_attr, # binary_unary_attr + ) + + # Priority 2 to match: QConv2d Binary-Unary pattern with fp32/bfloat16 output + binary_replace_float_out_patterns = {} + for swap_inputs in swap_binary_inputs_list: + binary_replace_float_out_patterns.update( + { + PostOpAttr("sum", 1.0, "relu", [], ""): generate_pattern_with_unary( + generate_pattern_with_binary( + aten.add.Tensor, + get_qconv_pt2e_pattern(users=1), + KeywordArg("accum_after_dequant"), + int8_mixed_bf16_with_inplace_add, + swap_inputs=swap_inputs, + ), + aten.relu.default, + ) + } + ) + + for ( + binary_unary_attr, + patterns, + ) in binary_replace_float_out_patterns.items(): + if int8_mixed_bf16_with_inplace_add: + _register_qconv_post_op_fusion_pass( + patterns, + 3, # pass_number + torch.ops.onednn.qconv2d_pointwise.binary, # computation_op + binary_unary_attr, # binary_unary_attr + ) + else: + _register_qconv_post_op_fusion_pass( + patterns, + 4, # pass_number + torch.ops.onednn.qconv2d_pointwise.binary, # computation_op + binary_unary_attr, # binary_unary_attr + ) + + # Priority 3: QConv2d Binary pattern with fp32/bfloat16 output + binary_replace_float_out_patterns = {} + for swap_inputs in swap_binary_inputs_list: + binary_replace_float_out_patterns.update( + { + PostOpAttr( + "sum", 1.0, "none", [], "" + ): generate_pattern_with_binary( + aten.add.Tensor, + get_qconv_pt2e_pattern(users=1), + KeywordArg("accum_after_dequant"), + int8_mixed_bf16_with_inplace_add, + swap_inputs=swap_inputs, + ), + } + ) + + for ( + binary_unary_attr, + patterns, + ) in binary_replace_float_out_patterns.items(): + _register_qconv_post_op_fusion_pass( + patterns, + 4 if int8_mixed_bf16_with_inplace_add else 5, # pass_number + torch.ops.onednn.qconv2d_pointwise.binary, # computation_op + binary_unary_attr, # binary_unary_attr + ) + + +def _register_qlinear_post_op_fusion_pass( + pattern, + pass_number, + computation_op, + post_op_attr, +): + has_binary_post_op = post_op_attr.binary_op_name != "none" + + @register_freezing_graph_pattern( + pattern, + extra_check=_is_valid_qlinear_post_op_fusion_pattern(has_binary_post_op), + pass_number=pass_number, + ) + def qlinear_post_op_fusion(match: Match, *args, **kwargs): + """ + Match the pattern: + qlinear - post op + """ + output_dtype = _get_pattern_output_dtype(match) + # Activation QParams + x, x_scale, x_zp = ( + kwargs["x"], + kwargs["x_scale"], + kwargs["x_zp"], + ) + # Weight QParams + packed_weight, w_scale, w_zp = ( + kwargs["packed_weight"], + kwargs["w_scale"], + kwargs["w_zp"], + ) + + # bias + b = kwargs.get("b") + + # Output QParams + o_inv_scale = ( + kwargs["o_inv_scale"] + if (output_dtype in [torch.uint8, torch.int8]) + else 1.0 + ) + o_zero_point = ( + kwargs["o_zp"] if (output_dtype in [torch.uint8, torch.int8]) else 0 + ) + assert ( + kwargs["postop_name"] == "none" + ) # Expected no post op fused in weight prepack phase + + out_node = match.output_node() + with match.graph.inserting_before(out_node): + if not has_binary_post_op: + computation_args: tuple[Any, ...] = ( + x, + x_scale, + x_zp, + packed_weight, + w_scale, + w_zp, + b, + o_inv_scale, + o_zero_point, + output_dtype, + post_op_attr.unary_op_name, + post_op_attr.scalars_attr, + post_op_attr.algorithm_attr, + ) + else: + other = kwargs["other"] if "other" in kwargs else kwargs["accum"] + x2_scale = 1.0 + x2_zp = 0 + computation_args = ( + x, + x_scale, + x_zp, + packed_weight, + w_scale, + w_zp, + other, + b, + o_inv_scale, + o_zero_point, + output_dtype, + x2_scale, + x2_zp, + post_op_attr.binary_op_name, + post_op_attr.alpha, + post_op_attr.unary_op_name, + post_op_attr.scalars_attr, + post_op_attr.algorithm_attr, + ) + new_linear_node = match.graph.call_function( + computation_op, args=computation_args + ) + out_node.replace_all_uses_with(new_linear_node) + new_linear_node.meta.update(out_node.meta) + for node in reversed(match.nodes): + match.graph.erase_node(node) + count_key = ( + "qlinear_binary_matcher_count" + if has_binary_post_op + else "qlinear_unary_matcher_count" + ) + nodes_key = ( + "qlinear_binary_matcher_nodes" + if has_binary_post_op + else "qlinear_unary_matcher_nodes" + ) + counters["inductor"][count_key] += 1 + counters["inductor"][nodes_key] += len(match.nodes) + + +def _register_qlinear_unary_fusion(): + from .mkldnn_fusion import ( + _gelu_fusion_1 as _gelu_fusion_erf, + _gelu_fusion_2 as _gelu_fusion_tanh, + ) + + for original_pattern_output_dtype in [torch.float32, torch.bfloat16]: + is_bf16 = original_pattern_output_dtype == torch.bfloat16 + for x_scale_zp_are_tensors in (False, True): + qlinear_pattern = get_qlinear_pt2e_pattern(x_scale_zp_are_tensors) + computation_op = ( + torch.ops.onednn.qlinear_pointwise.tensor + if x_scale_zp_are_tensors + else torch.ops.onednn.qlinear_pointwise.default + ) + # Priority 1 to match: QLinear Unary pattern with int8 output + linear_unary_replace_patterns = { + PostOpAttr( + "none", None, "none", [], "" + ): generate_pattern_with_output_quant( + qlinear_pattern, + ), + PostOpAttr( + "none", None, "relu", [], "" + ): generate_pattern_with_output_quant( + generate_pattern_with_unary(qlinear_pattern, aten.relu.default), + ), + PostOpAttr( + "none", None, "gelu", [], "none" + ): generate_pattern_with_output_quant( + _unary_fusion_pattern( + _gelu_fusion_erf, + get_qlinear_pt2e_pattern( + x_scale_zp_are_tensors, 1 if is_bf16 else 2 + ), + 2, + is_bf16, + ), + with_dtype_convert=is_bf16, + ), + PostOpAttr( + "none", None, "gelu", [], "tanh" + ): generate_pattern_with_output_quant( + _unary_fusion_pattern( + _gelu_fusion_tanh, + get_qlinear_pt2e_pattern( + x_scale_zp_are_tensors, 1 if is_bf16 else 4 + ), + 4, + is_bf16, + ), + with_dtype_convert=is_bf16, + ), + } + + for unary_attr, patterns in linear_unary_replace_patterns.items(): + _register_qlinear_post_op_fusion_pass( + patterns, + 3, # pass_number + computation_op, + unary_attr, # unary_attr + ) + + # Priority 2 to match: QLinear Unary pattern with FP32/BF16 output + linear_unary_replace_float_out_patterns = { + PostOpAttr("none", None, "relu", [], ""): generate_pattern_with_unary( + qlinear_pattern, aten.relu.default + ), + PostOpAttr( + "none", None, "gelu", [], "none" + ): _may_generate_pattern_with_dtype_convert( + _unary_fusion_pattern( + _gelu_fusion_erf, + get_qlinear_pt2e_pattern( + x_scale_zp_are_tensors, 1 if is_bf16 else 2 + ), + 2, + is_bf16, + ), + Arg(), + is_bf16, + ), + PostOpAttr( + "none", None, "gelu", [], "tanh" + ): _may_generate_pattern_with_dtype_convert( + _unary_fusion_pattern( + _gelu_fusion_tanh, + get_qlinear_pt2e_pattern( + x_scale_zp_are_tensors, 1 if is_bf16 else 4 + ), + 4, + is_bf16, + ), + Arg(), + is_bf16, + ), + } + + for unary_attr, patterns in linear_unary_replace_float_out_patterns.items(): + _register_qlinear_post_op_fusion_pass( + patterns, + 4, # pass_number + computation_op, + unary_attr, # unary_attr + ) + + +def _register_qlinear_binary_fusion(): + r""" + Supported linear-binary(-unary) patterns + + linear(X) extra input + \ / + Add + | + Optional(relu) + | + Y + + 1. int8-mixed-fp32 + +---+---------------+-----------+------------------------------+---------+ + | # | Add type | Quant out | Pattern | Post op | + +---+---------------+-----------+------------------------------+---------+ + | 1 | In-/out-place | Yes | linear + fp32 -> (relu) -> q | add | + +---+---------------+-----------+------------------------------+---------+ + | 2 | In-/out-place | No | linear + fp32 -> (relu) | sum | + +---+---------------+-----------+------------------------------+---------+ + + 2. int8-mixed-bf16 + +---+----------+---------------+-----------+-----------------------------------------+---------+ + | # | X2 dtype | Add type | Quant out | Pattern | Post op | + +---+----------+---------------+-----------+-----------------------------------------+---------+ + | 1 | BF16 | In-/out-place | Yes | linear + bf16 -> (relu) -> q | add | + +---+----------+---------------+-----------+-----------------------------------------+---------+ + | 2 | BF16 | In-/out-place | No | linear + bf16 -> (relu) | sum | + +---+----------+---------------+-----------+-----------------------------------------+---------+ + | 3 | FP32 | Out-place | Yes | linear + fp32 -> (relu) -> q | add | + | | | In-place right| | | | + +---+----------+---------------+-----------+-----------------------------------------+---------+ + | 4 | FP32 | Out-place | No | linear + fp32 -> (relu) | sum | + | | | In-place right| | | | + +---+----------+---------------+-----------+-----------------------------------------+---------+ + | 5 | FP32 | In-place left | Yes | linear + fp32 -> to_bf16 -> (relu) -> q | add | + +---+----------+---------------+-----------+-----------------------------------------+---------+ + | 6 | FP32 | In-place left | No | linear + fp32 -> to_bf16 -> (relu) | add | + +---+----------+---------------+-----------+-----------------------------------------+---------+ + + Note + (1) The positions of linear and the extra input can be swapped. + (2) we don't insert q-dq before the extra input of linear-add by recipe. But if q-dq is found at the + extra input, we don't match that pattern because we cannot match all these patterns in 3 passes. + """ + for x_scale_zp_are_tensors in (False, True): + qlinear_binary_op = ( + torch.ops.onednn.qlinear_pointwise.binary_tensor + if x_scale_zp_are_tensors + else torch.ops.onednn.qlinear_pointwise.binary + ) + unary_postop_list = ["none", "relu"] + unary_postop_dict = { + "none": None, + "relu": aten.relu.default, + } + convert_dtype_after_binary_list = [False, True] + + # Priority 1 to match: QLinear Binary or Binary-Unary pattern with int8 output + # Covers case (1) of int8-mixed-fp32 and case (1)(3)(5) of int8-mixed-bf16, + # totally 3 patterns (2 are identical) + swap_binary_inputs_list = [False, True] + int8_mixed_bf16_list = [False, True] + combinations = itertools.product( + unary_postop_list, + int8_mixed_bf16_list, + swap_binary_inputs_list, + convert_dtype_after_binary_list, + ) + qlinear_binary_replace_patterns = {} + for unary_op, int8_mixed_bf16, swap_inputs, cvt_dtype_binary in combinations: + if not int8_mixed_bf16 and cvt_dtype_binary: + # No convert node after binary node if dtypes are all fp32 + continue + qlinear_binary_replace_patterns.update( + { + PostOpAttr( + "add", 1.0, unary_op, [], "" + ): generate_pattern_with_output_quant( + generate_pattern_with_unary( + generate_pattern_with_binary( + aten.add.Tensor, + get_qlinear_pt2e_pattern(x_scale_zp_are_tensors), + KeywordArg("other"), + # If fp32 extra input is inplace added to bf16 linear output, + # a to_bf16 node is inserted after binary + dtype_convert=cvt_dtype_binary, + swap_inputs=swap_inputs, + ), + unary_postop_dict[unary_op], + ), + ) + } + ) + for binary_unary_attr, patterns in qlinear_binary_replace_patterns.items(): + _register_qlinear_post_op_fusion_pass( + patterns, + 3, # pass_number + qlinear_binary_op, # computation_op + binary_unary_attr, + ) + + # Priority 2.1 to match: QLinear Binary-Unary pattern with fp32/bfloat16 output + # Covers case (2) of int8-mixed-fp32 and case (2)(4) of int8-mixed-bf16, + # totally 2 patterns (2 are identical) + binary_replace_float_out_patterns = {} + for swap_binary_inputs in swap_binary_inputs_list: + binary_replace_float_out_patterns.update( + { + PostOpAttr("sum", 1.0, "relu", [], ""): generate_pattern_with_unary( + generate_pattern_with_binary( + aten.add.Tensor, + get_qlinear_pt2e_pattern(x_scale_zp_are_tensors), + KeywordArg("accum"), + dtype_convert=False, + swap_inputs=swap_binary_inputs, + ), + aten.relu.default, + ), + } + ) + for ( + binary_unary_attr, + patterns, + ) in binary_replace_float_out_patterns.items(): + _register_qlinear_post_op_fusion_pass( + patterns, + 4, # pass_number + qlinear_binary_op, # computation_op + binary_unary_attr, + ) + # Priority 2.2 to match: QLinear Binary-Unary pattern with fp32/bfloat16 output + # Covers case (6) of int8-mixed-bf16 + binary_replace_float_out_patterns = {} + for swap_binary_inputs in swap_binary_inputs_list: + binary_replace_float_out_patterns.update( + { + PostOpAttr("add", 1.0, "relu", [], ""): generate_pattern_with_unary( + generate_pattern_with_binary( + aten.add.Tensor, + get_qlinear_pt2e_pattern(x_scale_zp_are_tensors), + KeywordArg("other"), + dtype_convert=True, + swap_inputs=swap_binary_inputs, + ), + aten.relu.default, + ), + } + ) + for ( + binary_unary_attr, + patterns, + ) in binary_replace_float_out_patterns.items(): + _register_qlinear_post_op_fusion_pass( + patterns, + 4, # pass_number + qlinear_binary_op, # computation_op + binary_unary_attr, + ) + + # Priority 3.1: QLinear Binary pattern with fp32/bfloat16 output + # Covers case (2) of int8-mixed-fp32 and case (2)(4) of int8-mixed-bf16, + # totally 2 patterns (2 are identical) + binary_replace_float_out_patterns = {} + for swap_binary_inputs in swap_binary_inputs_list: + binary_replace_float_out_patterns.update( + { + PostOpAttr( + "sum", 1.0, "none", [], "" + ): generate_pattern_with_binary( + aten.add.Tensor, + get_qlinear_pt2e_pattern(x_scale_zp_are_tensors), + KeywordArg("accum"), + dtype_convert=False, + swap_inputs=swap_binary_inputs, + ), + } + ) + for ( + binary_unary_attr, + patterns, + ) in binary_replace_float_out_patterns.items(): + _register_qlinear_post_op_fusion_pass( + patterns, + 5, # pass_number + qlinear_binary_op, # computation_op + binary_unary_attr, + ) + # Priority 3.2: QLinear Binary pattern with fp32/bfloat16 output + # Covers (6) of int8-mixed-bf16 + binary_replace_float_out_patterns = {} + for swap_binary_inputs in swap_binary_inputs_list: + binary_replace_float_out_patterns.update( + { + PostOpAttr( + "add", 1.0, "none", [], "" + ): generate_pattern_with_binary( + aten.add.Tensor, + get_qlinear_pt2e_pattern(x_scale_zp_are_tensors), + KeywordArg("other"), + dtype_convert=True, + swap_inputs=swap_binary_inputs, + ), + } + ) + for ( + binary_unary_attr, + patterns, + ) in binary_replace_float_out_patterns.items(): + _register_qlinear_post_op_fusion_pass( + patterns, + 5, # pass_number + qlinear_binary_op, # computation_op + binary_unary_attr, + ) + + +@functools.cache +def _register_quantization_weight_pack_pass(): + # Step 1: Dequant promotion for int8-mixed-fp32/bf16 + _register_dequant_promotion() + + # Step 2: QConv weight prepack + _register_qconv_weight_prepack() + + # Step 3: QLinear weight prepack + _register_qlinear_weight_prepack() + _register_linear_dynamic_fp16_weight_prepack() + + # Step 4: weight prepack for SmoothQuant from Torchao + _register_smooth_quant_int_mm_pattern() + + # Step 5: QLinear post op Fusion + if not torch.ops.mkldnn._is_mkldnn_acl_supported(): + # skip fusion on ARM + _register_qconv_unary_fusion() + _register_qconv_binary_fusion() + _register_qlinear_unary_fusion() + _register_qlinear_binary_fusion() + + +def _is_valid_concat_linear_woq_int4_fusion(computation_nodes): + computation_op = torch.ops.aten._weight_int4pack_mm_for_cpu.default + act = computation_nodes[0].args[0] + wgt = computation_nodes[0].args[1] + in_feature_size = wgt.meta.get("val").size(1) # type: ignore[union-attr] + group_size = computation_nodes[0].args[2] + return len(computation_nodes) >= 2 and all( + ( + node.target == computation_op + and node.args[0] == act # share same activation + and ( + node.args[1].meta.get("val").size(1) == in_feature_size + ) # same in feature size + and (node.args[1] != wgt or gemm_idx == 0) + and node.args[1].op == "get_attr" # wgt are all constants + and node.args[2] == group_size # same group size + ) + for gemm_idx, node in enumerate(computation_nodes) + ) + + +def concat_linear_woq_int4(gm: torch.fx.GraphModule): + """ + Concat Linear optimization pass for WOQ int4 + This pass fuses the original pattern: + def ... + return (woq_int4(x, w1, group_size, scale_zp1), woq_int4(x, w2, group_size, scale_zp1) ...) + into a single operation: + def ... + concat_res = woq_int4(x, concat_w, group_size, concat_scale_zp) + return split(concat_res, split_size_list) + """ + + def concat_wgt(packed_wgts, scale_zps, group_size, act_dtype): + # Concat the wgts and scale_zps, and repack the wgt + unpacked_wgts = [] + for packed_wgt in packed_wgts: + # Get the unpacked weight list + # Same as https://github.com/pytorch/pytorch/pull/156174 + K = packed_wgt.size(1) * 2 + N = packed_wgt.size(0) + x = torch.eye(K).to(dtype=act_dtype) + qscales_and_zeros = ( + torch.tensor([1.0, 8.0]) + .to(dtype=act_dtype) + .expand(K // group_size, N, 2) + .contiguous() + ) + unpacked_wgts.append( + torch.ops.aten._weight_int4pack_mm_for_cpu( + x, + packed_wgt, + group_size, + qscales_and_zeros, + ) + .t() + .contiguous() + .to(torch.int32) # N, K + ) + concat_unpacked_wgt = torch.cat(unpacked_wgts, dim=0) + repack_w = torch.ops.aten._convert_weight_to_int4pack_for_cpu( + concat_unpacked_wgt, 1 + ) + concat_scale_zp = torch.cat(scale_zps, dim=1).contiguous() + return repack_w, concat_scale_zp + + graph = gm.graph + computation_op = torch.ops.aten._weight_int4pack_mm_for_cpu.default + for node in graph.find_nodes(op="call_function", target=computation_op): + if ( + not node._erased + and isinstance(node.meta.get("val"), torch.Tensor) + and node.meta["val"].device.type == "cpu" + ): + act = node.args[0] + users = list(act.users) + if _is_valid_concat_linear_woq_int4_fusion(users): + with graph.inserting_before(node): + assert all(user.args[1].op == "get_attr" for user in users) + computation_node_0 = users[0] + packed_wgts = [getattr(gm, user.args[1].target) for user in users] + group_size = computation_node_0.args[2] + scale_zps = [getattr(gm, user.args[3].target) for user in users] + out_feature_size_list = [ + packed_wgt.size(0) for packed_wgt in packed_wgts + ] + repack_w, concat_scale_zp = concat_wgt( + packed_wgts, scale_zps, group_size, act.meta.get("val").dtype + ) + repack_w_node_name = computation_node_0.args[1].target + "_concat" + concat_scale_zp_node_name = ( + computation_node_0.args[3].target + "_concat" + ) + gm.register_buffer(repack_w_node_name, repack_w) + setattr(gm, repack_w_node_name, repack_w) + gm.register_buffer(concat_scale_zp_node_name, concat_scale_zp) + setattr(gm, concat_scale_zp_node_name, concat_scale_zp) + + repack_w_node = graph.create_node( + "get_attr", repack_w_node_name, (), {} + ) + with graph.inserting_after(repack_w_node): + concat_scale_zp_node = graph.create_node( + "get_attr", concat_scale_zp_node_name, (), {} + ) + + with graph.inserting_after(concat_scale_zp_node): + concat_int4_gemm_node = graph.create_node( + "call_function", + computation_op, + ( + act, + repack_w_node, + group_size, + concat_scale_zp_node, + ), + ) + with graph.inserting_after(concat_int4_gemm_node): + split_node = graph.create_node( + "call_function", + torch.ops.aten.split_with_sizes.default, + ( + concat_int4_gemm_node, + out_feature_size_list, + 1, # split dim + ), + ) + with graph.inserting_after(split_node): + for gemm_idx, user in enumerate(users): + assert user.target == computation_op + get_item = graph.create_node( + "call_function", + operator.getitem, + ( + split_node, + gemm_idx, + ), + ) + with graph.inserting_after(get_item): + clone_node = graph.create_node( + "call_function", + torch.ops.aten.clone.default, + (get_item,), + {"memory_format": torch.contiguous_format}, + ) + user.replace_all_uses_with(clone_node) + graph.erase_node(user) + + +def quant_lift_up(graph_module: torch.fx.GraphModule): + """ + Lift up the quant node before view like nodes. It can benefit performance + of Attention like block. For example, we have the pattern as: + + DQ + DQ LINEAR + LINEAR VIEW + VIEW PERMUTE + PERMUTE TRANSPOSE + Q Q + DQ DQ + Matmul + DIV + ADD + SOFTMAX + + We want to lift up the quant nodes from matmul before view like nodes + as the output of Linear node. + + DQ + DQ LINEAR + LINEAR Q + Q VIEW + VIEW PERMUTE + PERMUTE TRANSPOSE + DQ DQ + Matmul + DIV + ADD + SOFTMAX + + It produces a DQ->LINEAR->Q pattern which can be fused by backend. + """ + + def is_view_op(node): + return node.op == "call_function" and node.target in _VIEW_OPS + + for node in graph_module.graph.nodes: + # Leslie: Here we verify that the quant node has exactly + # one input FX node, with constant scalar value for scale and zero point. + # For the case input of quant node has more than one input FX nodes, + # extend the implementation to lift up all the connected nodes + # before the view nodes to keep the topological order. + if ( + node.op == "call_function" + and node.target in _PER_TENSOR_QUANTIZE_OPS + and len(node.all_input_nodes) == 1 + and is_view_op(node.all_input_nodes[0]) + ): + quant_node = node + input_node_of_quant = quant_node.args[0] + + # Check the nodes along lift up path has only 1 user node + # Propagate view like node to find where to insert the new quant node + could_lift_up = True + current_node = quant_node + input_node = current_node.args[0] + while is_view_op(input_node): + if len(input_node.users) != 1: + could_lift_up = False + break + current_node = input_node + input_node = current_node.args[0] + + # Further check the input node of the first view node has only 1 user node + if could_lift_up and len(input_node.users) == 1: + counters["inductor"]["quant_lift_up_count"] += 1 + # Replace dequant's input from quant to quant's input + quant_node.replace_all_uses_with(input_node_of_quant) + # Insert the new quant node + with graph_module.graph.inserting_before(current_node): + new_quant_node = graph_module.graph.node_copy(quant_node) + input_node.replace_all_uses_with(new_quant_node) + + # Update inputs of new_quant_node + def maybe_replace_node(n: torch.fx.Node) -> torch.fx.Node: + if n == input_node_of_quant: + return input_node + else: + return n + + new_args = map_arg(new_quant_node.args, maybe_replace_node) + new_kwargs = map_arg(new_quant_node.kwargs, maybe_replace_node) + new_quant_node.args = new_args # type: ignore[assignment] + new_quant_node.kwargs = new_kwargs # type: ignore[assignment] + graph_module.graph.erase_node(quant_node) + + graph_module.graph.lint() + graph_module.recompile() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/reinplace.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/reinplace.py new file mode 100644 index 0000000000000000000000000000000000000000..e42e8a1139770d488929f772b0441fe4f616d449 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/reinplace.py @@ -0,0 +1,795 @@ +# mypy: allow-untyped-defs +import itertools +import logging +import operator +from collections import defaultdict +from collections.abc import Callable, Sequence +from contextlib import nullcontext +from dataclasses import dataclass +from typing import Any, cast + +import torch +import torch.fx.node +from torch._C._dynamo.guards import compute_overlapping_tensors +from torch._dispatch.python import enable_python_dispatcher +from torch._dynamo.utils import ReinplaceCounters, ReInplaceTrigger +from torch._guards import detect_fake_mode +from torch._higher_order_ops.triton_kernel_wrap import ( + kernel_side_table, + triton_kernel_wrapper_functional, +) +from torch._inductor import config, inductor_prims +from torch._inductor.fx_utils import get_node_storage, is_node_realized +from torch._inductor.lowering import ( + inplaceable_foreach_ops as inplaceable_foreach_ops_lowerings, +) +from torch._inductor.virtualized import V +from torch.fx.experimental.symbolic_shapes import ( + compute_unbacked_bindings, + GuardOnDataDependentSymNode, +) +from torch.fx.immutable_collections import immutable_dict, immutable_list +from torch.fx.passes.reinplace import _is_view_op +from torch.utils import _pytree as pytree +from torch.utils._ordered_set import OrderedSet + + +log = logging.getLogger(__name__) +aten = torch.ops.aten + + +@dataclass(frozen=True) +class InplaceableOp: + inplace_op: Callable[..., Any] + mutated_arg: int + extra_check: Callable[[torch.fx.Node], bool] = lambda node: True + + +_SCATTER_OP_TO_VIEW = { + torch.ops.aten.diagonal_scatter.default: torch.ops.aten.diagonal.default, + torch.ops.aten.select_scatter.default: torch.ops.aten.select.int, + torch.ops.aten.slice_scatter.default: torch.ops.aten.slice.Tensor, + torch.ops.aten.as_strided_scatter.default: torch.ops.aten.as_strided.default, +} +_VIEW_OP_TO_SCATTER = {v: k for k, v in _SCATTER_OP_TO_VIEW.items()} + + +def graph_call_function(graph: torch.fx.Graph, fn, *args, **kwargs): + fake_args, fake_kwargs = pytree.tree_map( + lambda node: node.meta["val"] if isinstance(node, torch.fx.Node) else node, + (args, kwargs), + ) + with V.fake_mode: + fake_result = fn(*fake_args, **fake_kwargs) + + node = graph.call_function(fn, args, kwargs) + + node.meta["val"] = fake_result + + return node + + +@dataclass +class ViewOp: + target: torch._ops.OpOverload + args: tuple[Any, ...] + kwargs: dict[str, Any] + + +def _inplace_generalized_scatter( + inp: torch.Tensor, src: torch.Tensor, view_ops: list[ViewOp] +) -> torch.Tensor: + tmp = inp + for view in view_ops: + fake_args, fake_kwargs = pytree.tree_map( + lambda node: node.meta["val"] if isinstance(node, torch.fx.Node) else node, + (view.args, view.kwargs), + ) + # slice and select can allocate new unbacked symints, but those won't be reflected + # in the output of this function, hence shall be ignored. + fake_mode = detect_fake_mode(fake_args) + with ( + fake_mode.shape_env.ignore_fresh_unbacked_symbols() + if fake_mode and fake_mode.shape_env + else nullcontext() + ): + tmp = view.target(tmp, *fake_args, **fake_kwargs) + try: + tmp.copy_(src) + except RuntimeError as e: + raise RuntimeError( + f"shape error in scatter op, can not broadcast {src.shape} to {tmp.shape}" + ) from e + return inp + + +def _generalized_scatter( + inp: torch.Tensor, src: torch.Tensor, view_ops: list[ViewOp] +) -> torch.Tensor: + out = inp.clone() + return _inplace_generalized_scatter(out, src, view_ops) + + +def _decompose_scatter_functional_helper( + graph: torch.fx.Graph, + inp: torch.Tensor, + src: torch.Tensor, + view_ops: list[ViewOp], +) -> torch.fx.Node: + view_op, view_ops_tail = view_ops[0], view_ops[1:] + + if view_ops_tail: + view = graph_call_function( + graph, view_op.target, inp, *view_op.args, **view_op.kwargs + ) + src = _decompose_scatter_functional_helper(graph, view, src, view_ops[1:]) # type: ignore[assignment] + + return graph_call_function( + graph, + _VIEW_OP_TO_SCATTER[view_op.target], + inp, + src, + *view_op.args, + **view_op.kwargs, + ) + + +def _decompose_scatter_functional( + graph: torch.fx.Graph, node: torch.fx.Node +) -> torch.fx.Node: + """Decompose _generalized_scatter to a sequence of view_scatter operations + + e.g. _generalized_scatter(inp, src, [(aten.slice, 0, 0, 10), (aten.slice, 1, 10, -10)]) + + will become + + view = aten.slice(inp, 0, 0, 10) + view_updated = aten.slice_scatter(view, src, 1, 10, -10) + inp_updated = aten.slice_scatter(inp, view_updated, 0, 0, 10) + """ + assert node.target is _generalized_scatter + return _decompose_scatter_functional_helper(graph, *node.args) # type: ignore[arg-type] + + +def _decompose_scatter_mutating( + graph: torch.fx.Graph, node: torch.fx.Node +) -> torch.fx.Node: + """Decompose _generalized_scatter using mutations + + e.g. _generalized_scatter(inp, src, [(aten.slice, 0, 0, 10), (aten.slice, 1, 10, -10)]) + + will become + + inp_updated = aten.clone(inp) + slice1 = aten.slice(inp_updated, 0, 0, 10) + slice2 = aten.slice(slice1, 1, 10, -10) + slice2.copy_(src) + + """ + assert node.target in (_generalized_scatter, _inplace_generalized_scatter) + inp, src, view_ops = node.args + assert not node.kwargs + + if node.target is _generalized_scatter: + inp = graph_call_function(graph, aten.clone, inp) + + tmp = inp + for view in view_ops: # type: ignore[union-attr] + tmp = graph_call_function(graph, view.target, tmp, *view.args, **view.kwargs) # type: ignore[union-attr] + # we need to set unbacked bindings that could have been created in the view ops. + if (V.fake_mode.shape_env) and ( + symbol_to_path := compute_unbacked_bindings( + V.fake_mode.shape_env, tmp.meta["val"] + ) + ): + tmp.meta["unbacked_bindings"] = symbol_to_path + + graph_call_function(graph, aten.copy_.default, tmp, src) + return inp # type: ignore[return-value] + + +# View ops whose view_scatter op is lowered into mutations anyway, +# so is never a pessimisation to decompose. +_ALWAYS_MUTATING_SCATTER_OPS = OrderedSet( + [ + aten.as_strided.default, + aten.diagonal.default, + ] +) + + +def scatter_always_uses_mutation(node: torch.fx.Node) -> bool: + _, _, view_ops = node.args + view_ops = cast(Sequence[torch.fx.node.Argument], view_ops) + return any( + target in _ALWAYS_MUTATING_SCATTER_OPS + for view in view_ops + if isinstance(target := getattr(view, "target", None), torch._ops.OpOverload) + ) + + +def should_reinplace_scatter(node: torch.fx.Node) -> bool: + """Choose between mutating and functional scatter decompositions + + Reinplacing view scatter ops can be pessimising as it blocks fusion with the + input or output tensor computations. However, it is still profitable if the + input and output would have been realized anyway. + + """ + inp, _src, _view_ops = node.args + + # Mutating scatter ops unconditionally realize input and output + if scatter_always_uses_mutation(node): + return True + + if is_node_realized(inp) and is_node_realized(node): # type: ignore[arg-type] + return True + + # If the output is copied back into the input, this forces both to be + # realized as the output is a user of the input + if inp.op in ("placeholder", "get_attr") and any( # type: ignore[union-attr] + user.target is aten.copy_.default and user.args[0] is inp for user in node.users + ): + return True + + # Otherwise, assume fusions will make functional variants profitable + return False + + +def decompose_generalized_scatter(graph: torch.fx.Graph) -> None: + """Replace _generalized_scatter with normal aten ops""" + for node in itertools.chain( + graph.find_nodes(op="call_function", target=_generalized_scatter), + graph.find_nodes(op="call_function", target=_inplace_generalized_scatter), + ): + use_mutation = ( + node.target is _inplace_generalized_scatter + or scatter_always_uses_mutation(node) + ) + + with graph.inserting_before(node): + if use_mutation: + new_node = _decompose_scatter_mutating(graph, node) + else: + new_node = _decompose_scatter_functional(graph, node) + + node.replace_all_uses_with(new_node) + graph.erase_node(node) + + +def canonicalize_view_scatter_ops(graph: torch.fx.Graph) -> None: + """ + This canonicalizes view scatter ops into a generalized form, defined as: + def scatter(inp, src, views): + tmp = inp.clone() + for view in views: + tmp = view(tmp) + tmp.copy_(src) + + We also fuse consecutive view scatter ops of the form + a = scatter(view2(self), src, [view1]) + b = scatter(self, a, [view2]) + which can be rewritten as + b = scatter(self, src, [view2, view1]) + a = view2(b) + + This is both more efficient as we only do a single scatter, and also + easier to reinplace since there is only one use of `self` + """ + + node_to_view_base: dict[torch.fx.Node, torch.fx.Node] = {} + node_to_view_op: dict[torch.fx.Node, list[ViewOp]] = defaultdict(list) + + def handle_views(node: torch.fx.Node): + inp = node.args[0] + node_to_view_base[node] = node_to_view_base.get(inp, inp) # type: ignore[arg-type, assignment] + node_to_view_op[node] = [ + *node_to_view_op[inp], # type: ignore[index] + ViewOp( + node.target, # type: ignore[arg-type] + args=node.args[1:], + kwargs=node.kwargs, + ), + ] + + def handle_view_scatter(node: torch.fx.Node): + assert len(node.args) >= 2 + inp, src = node.args[:2] + + assert isinstance(node.target, torch._ops.OpOverload) + scatter_view_op = ViewOp( + _SCATTER_OP_TO_VIEW[node.target], + args=node.args[2:], + kwargs=node.kwargs, + ) + + def can_fuse(): + if src.target is not _generalized_scatter: # type: ignore[union-attr] + return False + src_inp, _src_src, _src_scatter_view_op = src.args # type: ignore[union-attr] + + inp_base = node_to_view_base.get(inp, inp) # type: ignore[arg-type] + src_base = node_to_view_base.get(src_inp, src_inp) # type: ignore[arg-type] + return inp_base is src_base and node_to_view_op[src_inp] == [ # type: ignore[index] + *node_to_view_op[inp], # type: ignore[index] + scatter_view_op, + ] + + if not can_fuse(): + with graph.inserting_before(node): + new_node = graph_call_function( + graph, + _generalized_scatter, + inp, + src, + [scatter_view_op], + ) + node.replace_all_uses_with(new_node) + graph.erase_node(node) + return + + _src_inp, src_src, src_scatter_view_op = src.args # type: ignore[union-attr] + with graph.inserting_before(src): # type: ignore[arg-type] + new_node = graph_call_function( + graph, + _generalized_scatter, + inp, + src_src, + [scatter_view_op, *src_scatter_view_op], # type: ignore[misc] + ) + node.replace_all_uses_with(new_node) + graph.erase_node(node) + + if src.users: # type: ignore[union-attr] + new_src = graph_call_function( + graph, + _SCATTER_OP_TO_VIEW[node.target], + new_node, + *node.args[2:], + **node.kwargs, + ) + + handle_views(new_src) + src.replace_all_uses_with(new_src) # type: ignore[union-attr] + + graph.erase_node(src) # type: ignore[arg-type] + + for node in graph.nodes: + if _is_view_op(node.target): + handle_views(node) + elif node.target in _SCATTER_OP_TO_VIEW: + handle_view_scatter(node) + + +inplaceable_ops: dict[Callable[..., Any], InplaceableOp] = { + aten.index_put.default: InplaceableOp(aten.index_put_.default, 0), + aten._unsafe_index_put.default: InplaceableOp(inductor_prims._unsafe_index_put_, 0), + _generalized_scatter: InplaceableOp( + _inplace_generalized_scatter, + 0, + extra_check=should_reinplace_scatter, + ), +} + +try: + c10d_functional = torch.ops._c10d_functional + inplaceable_collective_ops: dict[Callable[..., Any], InplaceableOp] = { + c10d_functional.all_reduce.default: InplaceableOp( + c10d_functional.all_reduce_.default, 0 + ), + c10d_functional.all_reduce_coalesced.default: InplaceableOp( + c10d_functional.all_reduce_coalesced_.default, 0 + ), + } + inplaceable_ops.update(inplaceable_collective_ops) +except AttributeError: + # _c10d_functional ops are only available when torch + # is built with USE_DISTRIBUTED=1. + pass + +inplaceable_foreach_ops: dict[torch._ops.OpOverload, InplaceableOp] = {} +for outplace_op, inplace_op in inplaceable_foreach_ops_lowerings.items(): + inplaceable_foreach_ops[outplace_op] = InplaceableOp(inplace_op, 0) + + +inplaceable_triton_ops = OrderedSet([triton_kernel_wrapper_functional]) + + +# Operators that don't depend on the tensor data +META_ONLY_OPS = OrderedSet( + [ + aten.sym_size.int, + aten.sym_stride.int, + aten.sym_numel.default, + aten.sym_storage_offset.default, + ] +) + + +def reinplace_inplaceable_ops_core(graph: torch.fx.Graph) -> None: + """ + Reinplaces in-placeable operations. + If there are no uses of a view of the mutated arg after the current node, + it is possible to inplace the op. + This above algorithm could be justified by observing side effects. While + we traverse the graph in forwards direction, only latter nodes could view + side effects of the current node. If the current node is not used later as + well as no view of this node is used later in the graph, then it is safe to + inplace as there would be no way to observe the side effects. + This condition is slightly different for graph inputs where they can only + be inplaced if the above condition is true and there's a copy_ in the + epilogue that signals that the caller wants to observe the mutation. + + Unlike JIT Inductor, AOTInductor currently unlifts weights and buffers from + input args, so instead of checking mutation on placeholder, AOTInductor + checks mutation on get_attr. This is subject to change in future. + """ + + copy_args_to_copy_nodes = {} + # maps argument to the first copy_ node that mutates it. + copy_nodes = {} + mutated_inputs = OrderedSet[Any]() + storage_to_nodes = defaultdict(list) + node_order: dict[Any, int] = {} + for i, node in enumerate(reversed(graph.nodes)): + node_order[node] = len(graph.nodes) - i - 1 + storage_to_nodes[get_node_storage(node)].append(node) + if node.target is aten.copy_.default and node.args[0].op in ( + "placeholder", + "get_attr", + ): + dst = node.args[0] + src = node.args[1] + # If the target is a getitem and it indexes a possible clone, + # then skip over it + if src.target is operator.getitem and ( + ( + src.args[0].target == triton_kernel_wrapper_functional + and src.args[0].kwargs["kwargs"][src.args[1]] == node.args[0] + ) + or (src.args[0].target in inplaceable_foreach_ops) + or (src.args[0].target is torch.ops.higher_order.auto_functionalized) + ): + src = src.args[0] + + copy_args_to_copy_nodes[(dst, src)] = node + copy_nodes[dst] = node + + mutated_inputs.add(node.args[0]) + + def any_use_of_views_after_node(node, shared_view_nodes, *, copy_node, mutated_arg): + node_loc = node_order[node] + copy_node_loc = node_order[copy_node] if copy_node is not None else None + + def is_meta_only_user(node): + if _is_view_op(node.target): + return all(is_meta_only_user(u) for u in node.users) + return node.target in META_ONLY_OPS + + for view in shared_view_nodes: + for user in view.users: + user_loc = node_order[user] + # Skip all users before node + if user_loc <= node_loc: + continue + # Ignore uses after the copy_ epilogue node, where the input + # has already been mutated anyway + if copy_node_loc is not None and copy_node_loc <= user_loc: + continue + # Reinplacing does not change shape metadata + if is_meta_only_user(user): + continue + # If our graph looks like: + # foo(mutated_arg) + # mutated_arg.copy_(other) + # then it's safe for us to reinplace foo because mutated_arg + # will get overwritten anyways. + if ( + user.target is torch.ops.aten.copy_.default + and mutated_arg is user.args[0] + ): + continue + return True + return False + + def can_inplace(node, mutated_arg): + # ls should be a list of tensors that all shares the same storage. + def _overlap(ls) -> bool: + try: + return len(compute_overlapping_tensors(ls)) != 0 + except GuardOnDataDependentSymNode: + # If we fail with data dependent error we assume they all overlap. + return True + + if isinstance(mutated_arg, (list, tuple)): + # TODO Using _overlap here causes a several issues. + unique_storages = OrderedSet(get_node_storage(arg) for arg in mutated_arg) + if len(unique_storages) != len(mutated_arg): + # At least two Tensors in mutated_arg alias each other, so we can't reinplace it. + # We can probably do better (that is, reinplace one of them and clone the other) + # but that requires more work and mutable List[Tensor] are not that common. + return False + return all(can_inplace(node, arg) for arg in mutated_arg) + + if get_node_storage(mutated_arg) is None: + return False + + shared_view_nodes = storage_to_nodes[get_node_storage(mutated_arg)] + + # Only keep tensor that might overlap with mutated_arg. + shared_view_nodes = [ + v + for v in shared_view_nodes + if _overlap([mutated_arg.meta["val"], v.meta["val"]]) + ] + + if mutated_arg.op in ("placeholder", "get_attr"): + # Get the first copy_ node that mutates the mutated_arg. + copy_node = copy_nodes.get(mutated_arg) + if copy_node is None: + # There is no copy_ back to the candidate mutated_arg (which is a graph input). + # Therefore the semantics of the program are that it does not mutate + # mutated_arg, so we cannot re-inplace it. + return False + if any_use_of_views_after_node( + node, shared_view_nodes, copy_node=copy_node, mutated_arg=mutated_arg + ): + return False + + return True + elif any(view.op in ("placeholder", "get_attr") for view in shared_view_nodes): + # This should never happen in auto_functionalize_v2 non-inference mode, + # since all mutated_arg are bases. + + # If mutated arg is view of any of the inputs of the graph, + # do not allow for inplacing. + # This would require more sophisticated algorithm to handle + return False + else: + return not any_use_of_views_after_node( + node, shared_view_nodes, copy_node=None, mutated_arg=mutated_arg + ) + + def log_inplace_results( + node_name, + old_tensors_to_clone, + tensors_to_clone, + missed_args, + missed_nodes, + trigger, + ): + # Total size of possibly_missed_reinplacing_opportunities for tensors with static shapes. + missed_bytes = 0 + + def bytes(node): + t = node.meta.get("val", None) + if ( + t is not None + and isinstance(t.element_size(), int) + and isinstance(t.numel(), int) + ): + return t.element_size() * t.numel() + else: + return 0 + + for node in missed_nodes: + if isinstance(node, (list, tuple)): + for n in node: + missed_bytes += bytes(n) + else: + missed_bytes += bytes(node) + + log.info( + "For node %s, attempted to reinplace %s. We were unable to reinplace %s; " + "%s (if non-empty) are possible missed reinplacing opportunities that may be bad for " + "memory usage and performance. Total size of missed opportunities with static shapes is" + " : %s bytes.", + node_name, + old_tensors_to_clone, + tensors_to_clone, + missed_args, + missed_bytes, + ) + + ReinplaceCounters.add_missed_opportunities(trigger, len(missed_args)) + ReinplaceCounters.add_missed_bytes(trigger, missed_bytes) + + replace_dict: dict[torch.fx.Node, torch.fx.Node] = {} + + def reinplace_and_refine_tensors_to_clone( + old_tensors_to_clone, kwargs, node_name, trigger + ): + tensors_to_clone: list[str] = [] + storage_of_reinplaced_args = OrderedSet[int | None]() + + # Those used to count possibly_missed_reinplacing_opportunities + missed_nodes = [] + missed_args = [] + + # TODO this logic can be made more precise using _overlap + def tensor_with_same_storage_already_reinplaced(arg): + if isinstance(arg, (list, tuple)): + return any( + get_node_storage(a) in storage_of_reinplaced_args for a in arg + ) + return get_node_storage(mutated_arg) in storage_of_reinplaced_args + + for arg in old_tensors_to_clone: + assert arg in kwargs + + mutated_arg = kwargs[arg] + + # Let's say we have: + # - op(x, y) that mutates both x and y + # - new_x, new_y = functional_op(x, y) is the functional variant + # If we are presented with functional_op(x, x), we must not reinplace + # this into op(x, x), because then it would be writing to the same Tensor. + # Instead, it's OK to reinplace one of them and to clone the other: + # >>> y = x.clone() + # >>> op(x, y) + # This also applies if we have views: functional_op(x, x[0]) + # should not reinplace into op(x, x[0]). + should_attempt_reinplace = not tensor_with_same_storage_already_reinplaced( + mutated_arg + ) + if should_attempt_reinplace and can_inplace(node, mutated_arg): + # In general, we probably do not need those optimizations. + copy_node = copy_args_to_copy_nodes.get((mutated_arg, node)) + if copy_node is not None: + replace_dict[copy_node] = copy_node.args[0] + if trigger != ReInplaceTrigger.AUTO_FUNC_V2: + for user in node.users: + # For auto_functionalize_v2, arg is the index of the base, where base at index i corresponds to + # output atindex size(out)+i. + # This used to compare string with integers before for auto_functionalize_v2. Not sure + # if it was needed for inplaceable_triton_ops? + if user.target is operator.getitem and user.args[1] == arg: + replace_dict[user] = mutated_arg + + if isinstance(mutated_arg, (list, tuple)): + for a in mutated_arg: + storage_of_reinplaced_args.add(get_node_storage(a)) + else: + storage_of_reinplaced_args.add(get_node_storage(mutated_arg)) + else: + if should_attempt_reinplace: + missed_args.append(arg) + missed_nodes.append(mutated_arg) + + tensors_to_clone.append(arg) + + log_inplace_results( + node_name, + old_tensors_to_clone, + tensors_to_clone, + missed_args, + missed_nodes, + trigger, + ) + return tensors_to_clone + + for node in graph.nodes: + if (inplaceable_op := inplaceable_ops.get(node.target, None)) is not None: + mutated_arg = node.args[inplaceable_op.mutated_arg] + if can_inplace(node, mutated_arg) and inplaceable_op.extra_check(node): + # TODO(yifu): this doesn't properly remove copy epilogues for + # ops that mutate multiple inputs. Need to revise the copy + # node tracking logic to support the case. + copy_node = copy_args_to_copy_nodes.get((mutated_arg, node)) + if copy_node is not None: + replace_dict[copy_node] = copy_node.args[0] + node.target = inplaceable_op.inplace_op + elif node.target is torch.ops.higher_order.auto_functionalized_v2: + _mutable_op = node.args[0] + kwargs = node.kwargs + + all_bases = kwargs["_all_bases"] + bases_to_clone = range(len(all_bases)) + base_tensors_dct = dict(enumerate(all_bases)) + new_bases_to_clone: list[int] = reinplace_and_refine_tensors_to_clone( + bases_to_clone, + base_tensors_dct, + node.target, + ReInplaceTrigger.AUTO_FUNC_V2, + ) + # Stash the metadata. There is a pass later on where we decompose + # auto_functionalized into clones + a mutable op; this metadata + # tells the decomp to only clone the following inputs + node.meta["only_clone_these_tensors"] = new_bases_to_clone + elif node.target is torch.ops.higher_order.auto_functionalized: + _mutable_op = node.args[0] + from torch._higher_order_ops.auto_functionalize import get_mutable_args + + tensors_to_clone, _ = get_mutable_args(_mutable_op) + # Don't try to reinplace Tensor | None args that are None. + tensors_to_clone = [ + t for t in tensors_to_clone if node.kwargs[t] is not None + ] + tensors_to_clone = reinplace_and_refine_tensors_to_clone( + tensors_to_clone, + node.kwargs, + _mutable_op._name, + ReInplaceTrigger.AUTO_FUNC_V1, + ) + + # Stash the metadata. There is a pass later on where we decompose + # auto_functionalized into clones + a mutable op; this metadata + # tells the decomp to only clone the following inputs + node.meta["only_clone_these_tensors"] = tensors_to_clone + elif node.target in inplaceable_triton_ops: + kernel_idx = node.kwargs["kernel_idx"] + kernel = kernel_side_table.get_kernel(kernel_idx) + from triton.runtime.autotuner import Autotuner + from triton.runtime.jit import JITFunction + + if isinstance(kernel, JITFunction): + kernel_name = kernel.fn.__name__ + elif isinstance(kernel, Autotuner): + if config.is_fbcode(): + # Autotuner has different implementations for AMD and NV + if torch.version.hip is None: + kernel_name = kernel.base_fn.__name__ + else: + kernel_name = kernel.fn.__name__ + else: + kernel_name = kernel.base_fn.__name__ + else: + raise AssertionError("Unknown triton kernel type") + + # inplaceable_triton_ops take an additional argument called + # tensors_to_clone which contain a list of tensors to clone + # This pass iterates over them and sees which ones are safe + # to eliminate (i.e. no longer need the clones) + tensors_to_clone = reinplace_and_refine_tensors_to_clone( + node.kwargs["tensors_to_clone"], + node.kwargs["kwargs"], + kernel_name, + ReInplaceTrigger.TRITON_OPS, + ) + + kwargs = dict(node.kwargs) + kwargs["tensors_to_clone"] = tensors_to_clone + node.kwargs = immutable_dict(kwargs) + if "eager_input_vals" in node.meta: + # We changed the kwargs, so we need to update eager_input_vals + # to something sane. + args, kwargs = node.meta["eager_input_vals"] + new_kwargs = {**kwargs} + new_kwargs["tensors_to_clone"] = immutable_list(tensors_to_clone) + new_kwargs = immutable_dict(new_kwargs) + node.meta["eager_input_vals"] = (args, new_kwargs) + elif ( + inplaceable_op := inplaceable_foreach_ops.get(node.target, None) + ) is not None: + mutated_args = node.args[inplaceable_op.mutated_arg] + + if not all((arg, node) in copy_args_to_copy_nodes for arg in mutated_args): + continue + + if can_inplace(node, mutated_args): + for arg in mutated_args: + copy_node = copy_args_to_copy_nodes[(arg, node)] + replace_dict[copy_node] = copy_node.args[0] + + node.target = inplaceable_op.inplace_op + for node, replacement in replace_dict.items(): + while replacement in replace_dict: + replacement = replace_dict[replacement] + replace_dict[node] = replacement + + node.replace_all_uses_with(replacement) + graph.erase_node(node) + + +def reinplace_inplaceable_ops( + fake_tensor_updater: torch._inductor.fx_utils.FakeTensorUpdater, + graph: torch.fx.Graph, +) -> None: + with enable_python_dispatcher(): + canonicalize_view_scatter_ops(graph) + # canonicalize_view_scatter_ops adds new operations to the graph. + # We run fake_tensor_updater to update the alias information. + # Correct alias information is required for `reinplace_inplaceable_ops_core`. + fake_tensor_updater.incremental_update() + reinplace_inplaceable_ops_core(graph) + decompose_generalized_scatter(graph) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/replace_random.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/replace_random.py new file mode 100644 index 0000000000000000000000000000000000000000..150ba5cde4a7cb7c2e3f1a8987082ea11c766c3a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/replace_random.py @@ -0,0 +1,150 @@ +# mypy: allow-untyped-defs +import collections +import logging + +import torch +from torch.fx.passes.graph_transform_observer import GraphTransformObserver +from torch.fx.passes.shape_prop import _extract_tensor_metadata + +from .. import config, inductor_prims +from ..pattern_matcher import ( + CallFunctionVarArgs, + Match, + PatternMatcherPass, + register_graph_pattern, +) +from ..virtualized import V + + +log = logging.getLogger(__name__) +patterns = PatternMatcherPass(subsystem="joint_graph_passes") +aten = torch.ops.aten + + +def replace_random_passes(gm: torch.fx.GraphModule): + """Modify the given FX graph to use backend-native random ops""" + if config.fallback_random: + return 0 + + count = patterns.apply(gm) + with GraphTransformObserver(gm, "fuse_seed_creation_pass", "joint_graph_passes"): + count += fuse_seed_creation_pass(gm.graph) + + return count + + +def fuse_seed_creation_pass(graph: torch.fx.Graph): + """ + Horizontally fuse all the seed generation on each device + + a = inductor_seed(dev) + b = inductor_seed(dev) + + Becomes: + seeds = inductor_seeds(2, dev) + a = inductor_lookup_seed(seeds, 0) + b = inductor_lookup_seed(seeds, 1) + + We do this because seed creation is entirely launch overhead bound. + """ + device_seeds = collections.defaultdict(list) + for node in graph.nodes: + if CallFunctionVarArgs(inductor_prims.seed).match(node): + device_seeds[node.args[0]].append(node) + + if not device_seeds: + return 0 + + for device, seeds in device_seeds.items(): + with graph.inserting_before(seeds[0]): + combined = graph.call_function(inductor_prims.seeds, (len(seeds), device)) + with V.fake_mode: + combined.meta["val"] = torch.empty( + [len(seeds)], device=device, dtype=torch.int64 + ) + combined.meta["tensor_meta"] = _extract_tensor_metadata( + combined.meta["val"] + ) + + for idx, seed in enumerate(seeds): + with graph.inserting_before(seed): + new_seed = graph.call_function( + inductor_prims.lookup_seed, (combined, idx) + ) + seed.replace_all_uses_with(new_seed) + new_seed.meta.update(seed.meta) + graph.erase_node(seed) + + return len(device_seeds) + + +def default_kwargs(device): + return {} + + +def get_device(device): + if device is not None: + return device + return torch.empty([]).device # default device + + +# pyrefly: ignore [bad-argument-type] +@register_graph_pattern(CallFunctionVarArgs(aten.rand.default), pass_dict=patterns) +# pyrefly: ignore [bad-argument-type] +@register_graph_pattern(CallFunctionVarArgs(aten.rand.generator), pass_dict=patterns) +# pyrefly: ignore [bad-argument-type] +@register_graph_pattern(CallFunctionVarArgs(aten.randn.default), pass_dict=patterns) +# pyrefly: ignore [bad-argument-type] +@register_graph_pattern(CallFunctionVarArgs(aten.randn.generator), pass_dict=patterns) +def replace_random( + match: Match, + size, + *, + generator=None, + dtype=None, + device=None, + layout=None, + pin_memory=None, +): + if generator is not None: + return + + def replacement(size): + result = inductor_prims.random( + size, inductor_prims.seed(device), mode, **default_kwargs(device) + ) + if dtype is not None: + result = result.to(dtype) + return result + + mode = { + aten.rand: "rand", + aten.randn: "randn", + }[ + match.output_node().target.overloadpacket # type: ignore[union-attr] + ] # type: ignore[union-attr] + device = get_device(device) + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(replacement, [size]) + + +# pyrefly: ignore [bad-argument-type] +@register_graph_pattern(CallFunctionVarArgs(aten.randint.low), pass_dict=patterns) +def replace_randint( + match: Match, + low, + high, + size, + *, + dtype=torch.int64, + device=None, + layout=None, + pin_memory=None, +): + def replacement(low, high, size): + result = inductor_prims.randint(low, high, size, inductor_prims.seed(device)) + return result.to(dtype) + + device = get_device(device) + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(replacement, [low, high, size]) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_1.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_1.py new file mode 100644 index 0000000000000000000000000000000000000000..6c8e6de3ff3cba5f0ebcec729c33061b04319d6a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_1.py @@ -0,0 +1,174 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale'), _users=2) +amax_default = CallFunction(aten.amax.default, div_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, div_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_7, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +div_Tensor_2 = CallFunction(aten.div.Tensor, fma_default, KeywordArg('inv_scale')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_1_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale'), _users=2) +amax_default = CallFunction(aten.amax.default, div_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, div_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_1_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_3, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_4, KeywordArg('inv_scale')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_1_half_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_1_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_10.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_10.py new file mode 100644 index 0000000000000000000000000000000000000000..567390838ede7dc4d4181f601f020e8066cb07b7 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_10.py @@ -0,0 +1,205 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, permute_default, Ignored()) +expand_default = CallFunction(aten.expand.default, div_Tensor, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_2, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_2, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, bmm_default_2, Ignored()) +view_default_7 = CallFunction(aten.view.default, convert_element_type_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_2, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +view_default_8 = CallFunction(aten.view.default, fma_default, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, view_default_9, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, div_Tensor_2, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_10_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, permute_default, Ignored()) +expand_default = CallFunction(aten.expand.default, div_Tensor, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_2, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_2, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_10_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, permute_default, Ignored()) +expand_default = CallFunction(aten.expand.default, div_Tensor, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, view_default_2, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_2, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +view_default_8 = CallFunction(aten.view.default, convert_element_type_default_3, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, view_default_9, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, div_Tensor_2, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_10_half_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, permute_default, Ignored()) +expand_default = CallFunction(aten.expand.default, div_Tensor, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, view_default_2, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_10_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_11.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_11.py new file mode 100644 index 0000000000000000000000000000000000000000..6aa39474c67dd677008c8e7e9266cc875a153196 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_11.py @@ -0,0 +1,204 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale'), _users=2) +amax_default = CallFunction(aten.amax.default, div_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, div_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_7, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +div_Tensor_2 = CallFunction(aten.div.Tensor, fma_default, KeywordArg('inv_scale')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_11_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale'), _users=2) +amax_default = CallFunction(aten.amax.default, div_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, div_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_11_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_3, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_4, KeywordArg('inv_scale')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_11_half_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_11_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_12.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_12.py new file mode 100644 index 0000000000000000000000000000000000000000..87302d1bab3694a33eac14e263dca86c9f702c75 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_12.py @@ -0,0 +1,220 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale_factor'), _users=2) +amax_default = CallFunction(aten.amax.default, div_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, div_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +div_Tensor_2 = CallFunction(aten.div.Tensor, fma_default, KeywordArg('inv_scale_factor')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_12_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale_factor'), _users=2) +amax_default = CallFunction(aten.amax.default, div_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, div_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_12_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale_factor')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, convert_element_type_default_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, mul_Tensor_3, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, convert_element_type_default_4, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_5, KeywordArg('inv_scale_factor')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_12_half_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale_factor')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_12_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_13.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_13.py new file mode 100644 index 0000000000000000000000000000000000000000..d465c1cb4e22b14bfbbdd35d5ed28a43af891523 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_13.py @@ -0,0 +1,130 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, KeywordArg('query'), permute_default, _users=2) +amax_default = CallFunction(aten.amax.default, bmm_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, bmm_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, mul_Tensor_1, KeywordArg('value')) +neg_default = CallFunction(aten.neg.default, div_Tensor) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, KeywordArg('tangents_1'), permute_default_1) +convert_element_type_default = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, bmm_default_2, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4, _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, fma_default, permute_default_2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, fma_default) +permute_default_4 = CallFunction(aten.permute.default, bmm_default_4, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, mul_Tensor_1, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, KeywordArg('tangents_1')) +_sfdp_pattern_13_training = MultiOutputPattern([bmm_default_1, + bmm_default_3, + permute_default_4, + bmm_default_5, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +bmm_default = CallFunction(aten.bmm.default, KeywordArg('query'), permute_default, _users=2) +amax_default = CallFunction(aten.amax.default, bmm_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, bmm_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +_sfdp_pattern_13_inference = CallFunction(aten.bmm.default, div_Tensor, KeywordArg('value'), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, KeywordArg('query'), permute_default) +convert_element_type_default = CallFunction(prims.convert_element_type.default, bmm_default, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, convert_element_type_default_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, mul_Tensor_1, KeywordArg('value')) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, KeywordArg('tangents_1'), permute_default_1) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, bmm_default_2, mul_Tensor_2) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, mul_Tensor_3, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, convert_element_type_default_4, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, convert_element_type_default_5, permute_default_2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, convert_element_type_default_5) +permute_default_4 = CallFunction(aten.permute.default, bmm_default_4, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, mul_Tensor_1, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, KeywordArg('tangents_1')) +_sfdp_pattern_13_half_training = MultiOutputPattern([bmm_default_1, + bmm_default_3, + permute_default_4, + bmm_default_5, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +bmm_default = CallFunction(aten.bmm.default, KeywordArg('query'), permute_default) +convert_element_type_default = CallFunction(prims.convert_element_type.default, bmm_default, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +_sfdp_pattern_13_half_inference = CallFunction(aten.bmm.default, convert_element_type_default_1, KeywordArg('value'), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_14.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_14.py new file mode 100644 index 0000000000000000000000000000000000000000..f102038e82c6d5858b8b334e956d87c7e86a9d22 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_14.py @@ -0,0 +1,210 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_7, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +div_Tensor_2 = CallFunction(aten.div.Tensor, fma_default, KeywordArg('inv_scale')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_14_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_14_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_3, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_4, KeywordArg('inv_scale')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_14_half_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_14_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_15.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_15.py new file mode 100644 index 0000000000000000000000000000000000000000..e1cbb0df340bab14188ec9d5f04a29035dba8d84 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_15.py @@ -0,0 +1,230 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +eq_Scalar = CallFunction(aten.eq.Scalar, KeywordArg('attn_mask'), Ignored()) +view_default = CallFunction(aten.view.default, eq_Scalar, Ignored()) +expand_default = CallFunction(aten.expand.default, view_default, Ignored(), _users=2) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_2, memory_format=torch.contiguous_format) +view_default_2 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default_1, view_default_2) +view_default_3 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_3, KeywordArg('inv_scale')) +where_self = CallFunction(aten.where.self, expand_default, full_default, div_Tensor, _users=2) +amax_default = CallFunction(aten.amax.default, where_self, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, where_self, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +expand_default_3 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_4 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_4, memory_format=torch.contiguous_format) +view_default_5 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_4, view_default_5) +view_default_6 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +scalar_tensor_default = CallFunction(aten.scalar_tensor.default, Ignored(), dtype=Ignored(), layout=torch.strided, device=Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_7 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_7, permute_default_4) +view_default_8 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_8, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +where_self_1 = CallFunction(aten.where.self, expand_default, scalar_tensor_default, fma_default) +div_Tensor_2 = CallFunction(aten.div.Tensor, where_self_1, KeywordArg('inv_scale')) +view_default_9 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_2, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_9, permute_default_5) +view_default_10 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_9) +view_default_11 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_11, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_7) +view_default_12 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_12, Ignored()) +_sfdp_pattern_15_training = MultiOutputPattern([view_default_6, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None +]) + + +eq_Scalar = CallFunction(aten.eq.Scalar, KeywordArg('attn_mask'), Ignored()) +view_default = CallFunction(aten.view.default, eq_Scalar, Ignored()) +expand_default = CallFunction(aten.expand.default, view_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_2, memory_format=torch.contiguous_format) +view_default_2 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default_1, view_default_2) +view_default_3 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_3, KeywordArg('inv_scale')) +where_self = CallFunction(aten.where.self, expand_default, full_default, div_Tensor, _users=2) +amax_default = CallFunction(aten.amax.default, where_self, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, where_self, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_3 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_4 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_4, memory_format=torch.contiguous_format) +view_default_5 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_4, view_default_5) +_sfdp_pattern_15_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +eq_Scalar = CallFunction(aten.eq.Scalar, KeywordArg('attn_mask'), Ignored()) +view_default = CallFunction(aten.view.default, eq_Scalar, Ignored()) +expand_default = CallFunction(aten.expand.default, view_default, Ignored(), _users=2) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_2, memory_format=torch.contiguous_format) +view_default_2 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default_1, view_default_2) +view_default_3 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_3, KeywordArg('inv_scale')) +where_self = CallFunction(aten.where.self, expand_default, full_default, div_Tensor) +convert_element_type_default = CallFunction(prims.convert_element_type.default, where_self, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_4 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_4, memory_format=torch.contiguous_format) +view_default_5 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_4, view_default_5) +view_default_6 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +scalar_tensor_default = CallFunction(aten.scalar_tensor.default, Ignored(), dtype=Ignored(), layout=torch.strided, device=Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_7 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_7, permute_default_4) +view_default_8 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, view_default_8, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_3, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +where_self_1 = CallFunction(aten.where.self, expand_default, scalar_tensor_default, convert_element_type_default_4) +div_Tensor_2 = CallFunction(aten.div.Tensor, where_self_1, KeywordArg('inv_scale')) +view_default_9 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_2, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_9, permute_default_5) +view_default_10 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_9) +view_default_11 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_11, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_7) +view_default_12 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_12, Ignored()) +_sfdp_pattern_15_half_training = MultiOutputPattern([view_default_6, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None +]) + + +eq_Scalar = CallFunction(aten.eq.Scalar, KeywordArg('attn_mask'), Ignored()) +view_default = CallFunction(aten.view.default, eq_Scalar, Ignored()) +expand_default = CallFunction(aten.expand.default, view_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_2, memory_format=torch.contiguous_format) +view_default_2 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default_1, view_default_2) +view_default_3 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_3, KeywordArg('inv_scale')) +where_self = CallFunction(aten.where.self, expand_default, full_default, div_Tensor) +convert_element_type_default = CallFunction(prims.convert_element_type.default, where_self, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_4 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_4, memory_format=torch.contiguous_format) +view_default_5 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_4, view_default_5) +_sfdp_pattern_15_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_16.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_16.py new file mode 100644 index 0000000000000000000000000000000000000000..3a15abb9088ff5ffe8cd9af43df11ccc0d5bc143 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_16.py @@ -0,0 +1,599 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +div_Tensor_2 = CallFunction(aten.div.Tensor, fma_default, KeywordArg('inv_scale')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_16_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_16_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +div_Tensor_2 = CallFunction(aten.div.Tensor, fma_default, KeywordArg('inv_scale')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_16_bs1_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_16_bs1_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, convert_element_type_default_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, mul_Tensor_3, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, convert_element_type_default_4, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_5, KeywordArg('inv_scale')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_16_half_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_16_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, convert_element_type_default_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, mul_Tensor_3, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, convert_element_type_default_4, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_5, KeywordArg('inv_scale')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_16_half_bs1_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_16_half_bs1_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, mul_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_2, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, convert_element_type_default_1, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_3, KeywordArg('inv_scale')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_16_half_mask_fp32_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_16_half_mask_fp32_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, mul_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_2, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, convert_element_type_default_1, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_3, KeywordArg('inv_scale')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_16_half_mask_fp32_bs1_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale')) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_16_half_mask_fp32_bs1_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_17.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_17.py new file mode 100644 index 0000000000000000000000000000000000000000..812708907b3414e2c864ed36b98f2199e63ae5d2 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_17.py @@ -0,0 +1,246 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +eq_Scalar = CallFunction(aten.eq.Scalar, KeywordArg('attn_mask'), Ignored()) +view_default = CallFunction(aten.view.default, eq_Scalar, Ignored()) +expand_default = CallFunction(aten.expand.default, view_default, Ignored(), _users=2) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_2, memory_format=torch.contiguous_format) +view_default_2 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default_1, view_default_2) +view_default_3 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_3, KeywordArg('inv_scale')) +where_self = CallFunction(aten.where.self, expand_default, full_default, div_Tensor, _users=2) +amax_default = CallFunction(aten.amax.default, where_self, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, where_self, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_4 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_4, memory_format=torch.contiguous_format) +view_default_5 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_4, view_default_5) +view_default_6 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +scalar_tensor_default = CallFunction(aten.scalar_tensor.default, Ignored(), dtype=Ignored(), layout=torch.strided, device=Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_7 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_7, permute_default_4) +view_default_8 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_8, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +where_self_1 = CallFunction(aten.where.self, expand_default, scalar_tensor_default, fma_default) +div_Tensor_2 = CallFunction(aten.div.Tensor, where_self_1, KeywordArg('inv_scale')) +view_default_9 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_2, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_9, permute_default_5) +view_default_10 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_9) +view_default_11 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_11, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_7) +view_default_12 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_12, Ignored()) +_sfdp_pattern_17_training = MultiOutputPattern([view_default_6, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None, + None +]) + + +eq_Scalar = CallFunction(aten.eq.Scalar, KeywordArg('attn_mask'), Ignored()) +view_default = CallFunction(aten.view.default, eq_Scalar, Ignored()) +expand_default = CallFunction(aten.expand.default, view_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_2, memory_format=torch.contiguous_format) +view_default_2 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default_1, view_default_2) +view_default_3 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_3, KeywordArg('inv_scale')) +where_self = CallFunction(aten.where.self, expand_default, full_default, div_Tensor, _users=2) +amax_default = CallFunction(aten.amax.default, where_self, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, where_self, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_3 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_4 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_4, memory_format=torch.contiguous_format) +view_default_5 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_4, view_default_5) +_sfdp_pattern_17_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +eq_Scalar = CallFunction(aten.eq.Scalar, KeywordArg('attn_mask'), Ignored()) +view_default = CallFunction(aten.view.default, eq_Scalar, Ignored()) +expand_default = CallFunction(aten.expand.default, view_default, Ignored(), _users=2) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_2, memory_format=torch.contiguous_format) +view_default_2 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default_1, view_default_2) +view_default_3 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_3, KeywordArg('inv_scale')) +where_self = CallFunction(aten.where.self, expand_default, full_default, div_Tensor) +convert_element_type_default = CallFunction(prims.convert_element_type.default, where_self, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, convert_element_type_default_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_4 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_4, memory_format=torch.contiguous_format) +view_default_5 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_4, view_default_5) +view_default_6 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +scalar_tensor_default = CallFunction(aten.scalar_tensor.default, Ignored(), dtype=Ignored(), layout=torch.strided, device=Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_7 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_7, permute_default_4) +view_default_8 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_8, mul_Tensor_2) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, mul_Tensor_3, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, convert_element_type_default_4, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +where_self_1 = CallFunction(aten.where.self, expand_default, scalar_tensor_default, convert_element_type_default_5) +div_Tensor_2 = CallFunction(aten.div.Tensor, where_self_1, KeywordArg('inv_scale')) +view_default_9 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_2, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_9, permute_default_5) +view_default_10 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_9) +view_default_11 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_11, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_7) +view_default_12 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_12, Ignored()) +_sfdp_pattern_17_half_training = MultiOutputPattern([view_default_6, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None, + None +]) + + +eq_Scalar = CallFunction(aten.eq.Scalar, KeywordArg('attn_mask'), Ignored()) +view_default = CallFunction(aten.view.default, eq_Scalar, Ignored()) +expand_default = CallFunction(aten.expand.default, view_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_2, memory_format=torch.contiguous_format) +view_default_2 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default_1, view_default_2) +view_default_3 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_3, KeywordArg('inv_scale')) +where_self = CallFunction(aten.where.self, expand_default, full_default, div_Tensor) +convert_element_type_default = CallFunction(prims.convert_element_type.default, where_self, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_4 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_4, memory_format=torch.contiguous_format) +view_default_5 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_4, view_default_5) +_sfdp_pattern_17_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_18.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_18.py new file mode 100644 index 0000000000000000000000000000000000000000..567d898ed204257e23a2002479afc5d26cba623b --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_18.py @@ -0,0 +1,453 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False, _users=2) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, full_default) +full_default_1 = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +where_self = CallFunction(aten.where.self, KeywordArg('causal_mask'), div_Tensor, full_default_1, _users=2) +amax_default = CallFunction(aten.amax.default, where_self, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, where_self, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +scalar_tensor_default = CallFunction(aten.scalar_tensor.default, Ignored(), dtype=Ignored(), layout=torch.strided, device=Ignored()) +where_self_1 = CallFunction(aten.where.self, KeywordArg('causal_mask'), fma_default, scalar_tensor_default) +div_Tensor_2 = CallFunction(aten.div.Tensor, where_self_1, full_default) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_18_training = MultiOutputPattern([view_default_5, + permute_default_1, + permute_default_3, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, full_default) +full_default_1 = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +where_self = CallFunction(aten.where.self, KeywordArg('causal_mask'), div_Tensor, full_default_1, _users=2) +amax_default = CallFunction(aten.amax.default, where_self, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, where_self, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +_sfdp_pattern_18_inference = MultiOutputPattern([view_default_5, + permute_default_1, + permute_default_3 +]) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False, _users=2) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, full_default) +full_default_1 = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +where_self = CallFunction(aten.where.self, KeywordArg('causal_mask'), div_Tensor, full_default_1, _users=2) +amax_default = CallFunction(aten.amax.default, where_self, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, where_self, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +scalar_tensor_default = CallFunction(aten.scalar_tensor.default, Ignored(), dtype=Ignored(), layout=torch.strided, device=Ignored()) +where_self_1 = CallFunction(aten.where.self, KeywordArg('causal_mask'), fma_default, scalar_tensor_default) +div_Tensor_2 = CallFunction(aten.div.Tensor, where_self_1, full_default) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_18_bs1_training = MultiOutputPattern([view_default_5, + permute_default_1, + permute_default_3, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, full_default) +full_default_1 = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +where_self = CallFunction(aten.where.self, KeywordArg('causal_mask'), div_Tensor, full_default_1, _users=2) +amax_default = CallFunction(aten.amax.default, where_self, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, where_self, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +_sfdp_pattern_18_bs1_inference = MultiOutputPattern([view_default_5, + permute_default_1, + permute_default_3 +]) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False, _users=2) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, full_default) +full_default_1 = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +where_self = CallFunction(aten.where.self, KeywordArg('causal_mask'), div_Tensor, full_default_1) +convert_element_type_default = CallFunction(prims.convert_element_type.default, where_self, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, convert_element_type_default_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, mul_Tensor_3, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, convert_element_type_default_4, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +scalar_tensor_default = CallFunction(aten.scalar_tensor.default, Ignored(), dtype=Ignored(), layout=torch.strided, device=Ignored()) +where_self_1 = CallFunction(aten.where.self, KeywordArg('causal_mask'), convert_element_type_default_5, scalar_tensor_default) +div_Tensor_2 = CallFunction(aten.div.Tensor, where_self_1, full_default) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_18_half_training = MultiOutputPattern([view_default_5, + permute_default_1, + permute_default_3, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, full_default) +full_default_1 = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +where_self = CallFunction(aten.where.self, KeywordArg('causal_mask'), div_Tensor, full_default_1) +convert_element_type_default = CallFunction(prims.convert_element_type.default, where_self, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +_sfdp_pattern_18_half_inference = MultiOutputPattern([view_default_5, + permute_default_1, + permute_default_3 +]) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False, _users=2) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, full_default) +full_default_1 = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +where_self = CallFunction(aten.where.self, KeywordArg('causal_mask'), div_Tensor, full_default_1) +convert_element_type_default = CallFunction(prims.convert_element_type.default, where_self, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, convert_element_type_default_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, mul_Tensor_3, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, convert_element_type_default_4, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +scalar_tensor_default = CallFunction(aten.scalar_tensor.default, Ignored(), dtype=Ignored(), layout=torch.strided, device=Ignored()) +where_self_1 = CallFunction(aten.where.self, KeywordArg('causal_mask'), convert_element_type_default_5, scalar_tensor_default) +div_Tensor_2 = CallFunction(aten.div.Tensor, where_self_1, full_default) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_18_half_bs1_training = MultiOutputPattern([view_default_5, + permute_default_1, + permute_default_3, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, full_default) +full_default_1 = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +where_self = CallFunction(aten.where.self, KeywordArg('causal_mask'), div_Tensor, full_default_1) +convert_element_type_default = CallFunction(prims.convert_element_type.default, where_self, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +_sfdp_pattern_18_half_bs1_inference = MultiOutputPattern([view_default_5, + permute_default_1, + permute_default_3 +]) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_19.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_19.py new file mode 100644 index 0000000000000000000000000000000000000000..5c6d316351b8595f75fdfd262a4cb2171a8a6b1e --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_19.py @@ -0,0 +1,209 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False, _users=2) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, full_default) +full_default_1 = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +where_self = CallFunction(aten.where.self, KeywordArg('causal_mask'), div_Tensor, full_default_1) +add_Tensor = CallFunction(aten.add.Tensor, where_self, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +scalar_tensor_default = CallFunction(aten.scalar_tensor.default, Ignored(), dtype=Ignored(), layout=torch.strided, device=Ignored()) +where_self_1 = CallFunction(aten.where.self, KeywordArg('causal_mask'), fma_default, scalar_tensor_default) +div_Tensor_2 = CallFunction(aten.div.Tensor, where_self_1, full_default) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_19_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None, + None, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, full_default) +full_default_1 = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +where_self = CallFunction(aten.where.self, KeywordArg('causal_mask'), div_Tensor, full_default_1) +add_Tensor = CallFunction(aten.add.Tensor, where_self, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_19_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False, _users=2) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, full_default) +full_default_1 = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +where_self = CallFunction(aten.where.self, KeywordArg('causal_mask'), div_Tensor, full_default_1) +add_Tensor = CallFunction(aten.add.Tensor, where_self, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, convert_element_type_default) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_1, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, mul_Tensor_3, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, convert_element_type_default_2, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +scalar_tensor_default = CallFunction(aten.scalar_tensor.default, Ignored(), dtype=Ignored(), layout=torch.strided, device=Ignored()) +where_self_1 = CallFunction(aten.where.self, KeywordArg('causal_mask'), convert_element_type_default_3, scalar_tensor_default) +div_Tensor_2 = CallFunction(aten.div.Tensor, where_self_1, full_default) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_19_half_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None, + None, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, full_default) +full_default_1 = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +where_self = CallFunction(aten.where.self, KeywordArg('causal_mask'), div_Tensor, full_default_1) +add_Tensor = CallFunction(aten.add.Tensor, where_self, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_19_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_2.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_2.py new file mode 100644 index 0000000000000000000000000000000000000000..f28da434ef0c85ca3d80095e68c052e8dc19dd2d --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_2.py @@ -0,0 +1,174 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_2, KeywordArg('scale_factor'), _users=2) +amax_default = CallFunction(aten.amax.default, mul_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, mul_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, view_default_7, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_1, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_1) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, fma_default, KeywordArg('scale_factor')) +view_default_8 = CallFunction(aten.view.default, mul_Tensor_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_2_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_2, KeywordArg('scale_factor'), _users=2) +amax_default = CallFunction(aten.amax.default, mul_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, mul_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_2_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_2, KeywordArg('scale_factor')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, mul_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_1, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_1) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_4, KeywordArg('scale_factor')) +view_default_8 = CallFunction(aten.view.default, mul_Tensor_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_2_half_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_2, KeywordArg('scale_factor')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, mul_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_2_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_20.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_20.py new file mode 100644 index 0000000000000000000000000000000000000000..9185aa3b1e3305cfa28f8080be04350beb17c065 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_20.py @@ -0,0 +1,244 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +eq_Scalar = CallFunction(aten.eq.Scalar, KeywordArg('attn_mask'), Ignored()) +view_default = CallFunction(aten.view.default, eq_Scalar, Ignored()) +expand_default = CallFunction(aten.expand.default, view_default, Ignored(), _users=2) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, permute_default, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_2, memory_format=torch.contiguous_format) +view_default_2 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default_1, view_default_2) +view_default_3 = CallFunction(aten.view.default, bmm_default, Ignored()) +where_self = CallFunction(aten.where.self, expand_default, full_default, view_default_3, _users=2) +amax_default = CallFunction(aten.amax.default, where_self, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, where_self, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_4 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_4, memory_format=torch.contiguous_format) +view_default_5 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_4, view_default_5) +view_default_6 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +scalar_tensor_default = CallFunction(aten.scalar_tensor.default, Ignored(), dtype=Ignored(), layout=torch.strided, device=Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_7 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_7, permute_default_4) +view_default_8 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_8, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +where_self_1 = CallFunction(aten.where.self, expand_default, scalar_tensor_default, fma_default) +view_default_9 = CallFunction(aten.view.default, where_self_1, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_2, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_9, permute_default_5) +view_default_10 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, view_default_10, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, div_Tensor_2, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_9) +view_default_11 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_11, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_7) +view_default_12 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_12, Ignored()) +_sfdp_pattern_20_training = MultiOutputPattern([view_default_6, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None +]) + + +eq_Scalar = CallFunction(aten.eq.Scalar, KeywordArg('attn_mask'), Ignored()) +view_default = CallFunction(aten.view.default, eq_Scalar, Ignored()) +expand_default = CallFunction(aten.expand.default, view_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, permute_default, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_2, memory_format=torch.contiguous_format) +view_default_2 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default_1, view_default_2) +view_default_3 = CallFunction(aten.view.default, bmm_default, Ignored()) +where_self = CallFunction(aten.where.self, expand_default, full_default, view_default_3, _users=2) +amax_default = CallFunction(aten.amax.default, where_self, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, where_self, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_3 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_4 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_4, memory_format=torch.contiguous_format) +view_default_5 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_4, view_default_5) +_sfdp_pattern_20_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +eq_Scalar = CallFunction(aten.eq.Scalar, KeywordArg('attn_mask'), Ignored()) +view_default = CallFunction(aten.view.default, eq_Scalar, Ignored()) +expand_default = CallFunction(aten.expand.default, view_default, Ignored(), _users=2) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, permute_default, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_2, memory_format=torch.contiguous_format) +view_default_2 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default_1, view_default_2) +view_default_3 = CallFunction(aten.view.default, bmm_default, Ignored()) +where_self = CallFunction(aten.where.self, expand_default, full_default, view_default_3) +convert_element_type_default = CallFunction(prims.convert_element_type.default, where_self, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, convert_element_type_default_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_4 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_4, memory_format=torch.contiguous_format) +view_default_5 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_4, view_default_5) +view_default_6 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +scalar_tensor_default = CallFunction(aten.scalar_tensor.default, Ignored(), dtype=Ignored(), layout=torch.strided, device=Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_7 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_7, permute_default_4) +view_default_8 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_8, mul_Tensor_2) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, mul_Tensor_3, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, convert_element_type_default_4, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +where_self_1 = CallFunction(aten.where.self, expand_default, scalar_tensor_default, convert_element_type_default_5) +view_default_9 = CallFunction(aten.view.default, where_self_1, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_2, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_9, permute_default_5) +view_default_10 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, view_default_10, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, div_Tensor_2, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_9) +view_default_11 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_11, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_7) +view_default_12 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_12, Ignored()) +_sfdp_pattern_20_half_training = MultiOutputPattern([view_default_6, + permute_default_6, + permute_default_9, + permute_default_11, + None, + None +]) + + +eq_Scalar = CallFunction(aten.eq.Scalar, KeywordArg('attn_mask'), Ignored()) +view_default = CallFunction(aten.view.default, eq_Scalar, Ignored()) +expand_default = CallFunction(aten.expand.default, view_default, Ignored()) +full_default = CallFunction(aten.full.default, [], Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, permute_default, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_2, memory_format=torch.contiguous_format) +view_default_2 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default_1, view_default_2) +view_default_3 = CallFunction(aten.view.default, bmm_default, Ignored()) +where_self = CallFunction(aten.where.self, expand_default, full_default, view_default_3) +convert_element_type_default = CallFunction(prims.convert_element_type.default, where_self, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_4 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_4, memory_format=torch.contiguous_format) +view_default_5 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_4, view_default_5) +_sfdp_pattern_20_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_21.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_21.py new file mode 100644 index 0000000000000000000000000000000000000000..4ebd4a4e14e48439eaa0a8b50e9fcf72145dc1a8 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_21.py @@ -0,0 +1,391 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +view_default_3 = CallFunction(aten.view.default, add_Tensor, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_4, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_4, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_6 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_8 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_6, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_8, permute_default_4) +view_default_9 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_9, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +view_default_10 = CallFunction(aten.view.default, fma_default, Ignored()) +view_default_11 = CallFunction(aten.view.default, view_default_10, Ignored()) +view_default_12 = CallFunction(aten.view.default, view_default_11, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_12, permute_default_5) +view_default_13 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_13, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_12) +view_default_14 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_14, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_8) +view_default_15 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_15, Ignored()) +_sfdp_pattern_21_training = MultiOutputPattern([view_default_7, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +view_default_3 = CallFunction(aten.view.default, add_Tensor, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_4, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_4, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_6 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +_sfdp_pattern_21_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +view_default_3 = CallFunction(aten.view.default, add_Tensor, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_4, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_4, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_6 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_8 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_6, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_8, permute_default_4) +view_default_9 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_9, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +view_default_10 = CallFunction(aten.view.default, fma_default, Ignored()) +view_default_11 = CallFunction(aten.view.default, view_default_10, Ignored()) +view_default_12 = CallFunction(aten.view.default, view_default_11, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_12, permute_default_5) +view_default_13 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_13, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_12) +view_default_14 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_14, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_8) +view_default_15 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_15, Ignored()) +_sfdp_pattern_21_bs1_training = MultiOutputPattern([view_default_7, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +view_default_3 = CallFunction(aten.view.default, add_Tensor, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_4, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_4, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_6 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +_sfdp_pattern_21_bs1_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored()) +view_default_3 = CallFunction(aten.view.default, convert_element_type_default, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, view_default_4, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default_1, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default_1, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_2, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_6 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_8 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_6, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_8, permute_default_4) +view_default_9 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, view_default_9, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_3, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +view_default_10 = CallFunction(aten.view.default, convert_element_type_default_4, Ignored()) +view_default_11 = CallFunction(aten.view.default, view_default_10, Ignored()) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, view_default_11, Ignored()) +convert_element_type_default_6 = CallFunction(prims.convert_element_type.default, convert_element_type_default_5, Ignored()) +view_default_12 = CallFunction(aten.view.default, convert_element_type_default_6, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_12, permute_default_5) +view_default_13 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_13, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_12) +view_default_14 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_14, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_8) +view_default_15 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_15, Ignored()) +_sfdp_pattern_21_half_training = MultiOutputPattern([view_default_7, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored()) +view_default_3 = CallFunction(aten.view.default, convert_element_type_default, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, view_default_4, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default_1, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default_1, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_2, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_6 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +_sfdp_pattern_21_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored()) +view_default_3 = CallFunction(aten.view.default, convert_element_type_default, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, view_default_4, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default_1, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default_1, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_2, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_6 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_8 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_6, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_8, permute_default_4) +view_default_9 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, view_default_9, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_3, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +view_default_10 = CallFunction(aten.view.default, convert_element_type_default_4, Ignored()) +view_default_11 = CallFunction(aten.view.default, view_default_10, Ignored()) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, view_default_11, Ignored()) +convert_element_type_default_6 = CallFunction(prims.convert_element_type.default, convert_element_type_default_5, Ignored()) +view_default_12 = CallFunction(aten.view.default, convert_element_type_default_6, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_12, permute_default_5) +view_default_13 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_13, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_12) +view_default_14 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_14, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_8) +view_default_15 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_15, Ignored()) +_sfdp_pattern_21_half_bs1_training = MultiOutputPattern([view_default_7, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored()) +view_default_3 = CallFunction(aten.view.default, convert_element_type_default, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, view_default_4, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default_1, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default_1, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_2, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_6 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +_sfdp_pattern_21_half_bs1_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_22.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_22.py new file mode 100644 index 0000000000000000000000000000000000000000..0971c09ad972f2bc07ac6ee9f548255a3760faa2 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_22.py @@ -0,0 +1,415 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +view_default_3 = CallFunction(aten.view.default, add_Tensor, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_4, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_4, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_6 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_8 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_6, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_8, permute_default_4) +view_default_9 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_9, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +view_default_10 = CallFunction(aten.view.default, fma_default, Ignored()) +view_default_11 = CallFunction(aten.view.default, view_default_10, Ignored()) +view_default_12 = CallFunction(aten.view.default, view_default_11, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_12, permute_default_5) +view_default_13 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_13, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_12) +view_default_14 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_14, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_8) +view_default_15 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_15, Ignored()) +_sfdp_pattern_22_training = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +view_default_3 = CallFunction(aten.view.default, add_Tensor, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_4, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_4, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_6 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +_sfdp_pattern_22_inference = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +view_default_3 = CallFunction(aten.view.default, add_Tensor, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_4, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_4, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_6 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_8 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_6, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_8, permute_default_4) +view_default_9 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_9, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +view_default_10 = CallFunction(aten.view.default, fma_default, Ignored()) +view_default_11 = CallFunction(aten.view.default, view_default_10, Ignored()) +view_default_12 = CallFunction(aten.view.default, view_default_11, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_12, permute_default_5) +view_default_13 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_13, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_12) +view_default_14 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_14, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_8) +view_default_15 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_15, Ignored()) +_sfdp_pattern_22_bs1_training = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +view_default_3 = CallFunction(aten.view.default, add_Tensor, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_4, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_4, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_6 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +_sfdp_pattern_22_bs1_inference = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored()) +view_default_3 = CallFunction(aten.view.default, convert_element_type_default, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, view_default_4, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default_1, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default_1, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_2, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_6 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_8 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_6, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_8, permute_default_4) +view_default_9 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, view_default_9, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_3, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +view_default_10 = CallFunction(aten.view.default, convert_element_type_default_4, Ignored()) +view_default_11 = CallFunction(aten.view.default, view_default_10, Ignored()) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, view_default_11, Ignored()) +convert_element_type_default_6 = CallFunction(prims.convert_element_type.default, convert_element_type_default_5, Ignored()) +view_default_12 = CallFunction(aten.view.default, convert_element_type_default_6, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_12, permute_default_5) +view_default_13 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_13, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_12) +view_default_14 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_14, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_8) +view_default_15 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_15, Ignored()) +_sfdp_pattern_22_half_training = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored()) +view_default_3 = CallFunction(aten.view.default, convert_element_type_default, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, view_default_4, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default_1, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default_1, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_2, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_6 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +_sfdp_pattern_22_half_inference = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored()) +view_default_3 = CallFunction(aten.view.default, convert_element_type_default, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, view_default_4, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default_1, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default_1, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_2, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_6 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_8 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_6, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_8, permute_default_4) +view_default_9 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, view_default_9, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_3, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +view_default_10 = CallFunction(aten.view.default, convert_element_type_default_4, Ignored()) +view_default_11 = CallFunction(aten.view.default, view_default_10, Ignored()) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, view_default_11, Ignored()) +convert_element_type_default_6 = CallFunction(prims.convert_element_type.default, convert_element_type_default_5, Ignored()) +view_default_12 = CallFunction(aten.view.default, convert_element_type_default_6, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_12, permute_default_5) +view_default_13 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_13, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_12) +view_default_14 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_14, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_8) +view_default_15 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_15, Ignored()) +_sfdp_pattern_22_half_bs1_training = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored()) +view_default_3 = CallFunction(aten.view.default, convert_element_type_default, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, view_default_4, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default_1, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default_1, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_2, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_6 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +_sfdp_pattern_22_half_bs1_inference = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3 +]) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_23.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_23.py new file mode 100644 index 0000000000000000000000000000000000000000..2be036c2e8ae7922b51690da782c5565656d7998 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_23.py @@ -0,0 +1,407 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, view_default_2, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_4, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_4, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_6 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_8 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_6, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_8, permute_default_4) +view_default_9 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_9, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +view_default_10 = CallFunction(aten.view.default, fma_default, Ignored()) +view_default_11 = CallFunction(aten.view.default, view_default_10, Ignored()) +view_default_12 = CallFunction(aten.view.default, view_default_11, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_12, permute_default_5) +view_default_13 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_13, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_12) +view_default_14 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_14, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_8) +view_default_15 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_15, Ignored()) +_sfdp_pattern_23_training = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3, + permute_default_6, + permute_default_9, + permute_default_11 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, view_default_2, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_4, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_4, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_6 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +_sfdp_pattern_23_inference = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, view_default_2, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_4, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_4, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_6 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_8 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_6, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_8, permute_default_4) +view_default_9 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_9, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +view_default_10 = CallFunction(aten.view.default, fma_default, Ignored()) +view_default_11 = CallFunction(aten.view.default, view_default_10, Ignored()) +view_default_12 = CallFunction(aten.view.default, view_default_11, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_12, permute_default_5) +view_default_13 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_13, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_12) +view_default_14 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_14, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_8) +view_default_15 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_15, Ignored()) +_sfdp_pattern_23_bs1_training = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3, + permute_default_6, + permute_default_9, + permute_default_11 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, view_default_2, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_4, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_4, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_6 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +_sfdp_pattern_23_bs1_inference = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, view_default_2, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, convert_element_type_default_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_4, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default_2, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default_2, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_3, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_6 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_8 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_6, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_8, permute_default_4) +view_default_9 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, view_default_9, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_4, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +view_default_10 = CallFunction(aten.view.default, convert_element_type_default_5, Ignored()) +view_default_11 = CallFunction(aten.view.default, view_default_10, Ignored()) +convert_element_type_default_6 = CallFunction(prims.convert_element_type.default, view_default_11, Ignored()) +convert_element_type_default_7 = CallFunction(prims.convert_element_type.default, convert_element_type_default_6, Ignored()) +view_default_12 = CallFunction(aten.view.default, convert_element_type_default_7, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_12, permute_default_5) +view_default_13 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_13, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_12) +view_default_14 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_14, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_8) +view_default_15 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_15, Ignored()) +_sfdp_pattern_23_half_training = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3, + permute_default_6, + permute_default_9, + permute_default_11 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, view_default_2, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, convert_element_type_default_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_4, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default_2, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default_2, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_3, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_6 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +_sfdp_pattern_23_half_inference = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, view_default_2, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, convert_element_type_default_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_4, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default_2, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default_2, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_3, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_6 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_8 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_6, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_8, permute_default_4) +view_default_9 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, view_default_9, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_4, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +view_default_10 = CallFunction(aten.view.default, convert_element_type_default_5, Ignored()) +view_default_11 = CallFunction(aten.view.default, view_default_10, Ignored()) +convert_element_type_default_6 = CallFunction(prims.convert_element_type.default, view_default_11, Ignored()) +convert_element_type_default_7 = CallFunction(prims.convert_element_type.default, convert_element_type_default_6, Ignored()) +view_default_12 = CallFunction(aten.view.default, convert_element_type_default_7, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_12, permute_default_5) +view_default_13 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_13, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_12) +view_default_14 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_14, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_5, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_8) +view_default_15 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_15, Ignored()) +_sfdp_pattern_23_half_bs1_training = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3, + permute_default_6, + permute_default_9, + permute_default_11 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, view_default_2, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, convert_element_type_default_1, Ignored()) +view_default_4 = CallFunction(aten.view.default, view_default_3, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_4, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default_2, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default_2, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_3, Ignored()) +view_default_5 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +view_default_6 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_5, view_default_6) +view_default_7 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +_sfdp_pattern_23_half_bs1_inference = MultiOutputPattern([view_default_7, + permute_default_1, + permute_default_3 +]) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_24.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_24.py new file mode 100644 index 0000000000000000000000000000000000000000..72f23373c143e4f113f04d5228966e5e79c448a0 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_24.py @@ -0,0 +1,153 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +view_default = CallFunction(aten.view.default, KeywordArg('query'), Ignored(), _users=2) +view_default_1 = CallFunction(aten.view.default, KeywordArg('key'), Ignored()) +permute_default = CallFunction(aten.permute.default, view_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, permute_default) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attention_mask')) +view_default_3 = CallFunction(aten.view.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_3, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_3, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=4) +view_default_4 = CallFunction(aten.view.default, KeywordArg('value'), Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, div_Tensor, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +mul_Tensor = CallFunction(aten.mul.Tensor, bmm_default_2, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +view_default_7 = CallFunction(aten.view.default, fma_default, Ignored()) +view_default_8 = CallFunction(aten.view.default, view_default_7, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +permute_default_4 = CallFunction(aten.permute.default, bmm_default_4, Ignored()) +view_default_10 = CallFunction(aten.view.default, permute_default_4, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, div_Tensor, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_24_training = MultiOutputPattern([view_default_5, + view_default_9, + view_default_10, + view_default_11, + None +]) + + +view_default = CallFunction(aten.view.default, KeywordArg('query'), Ignored()) +view_default_1 = CallFunction(aten.view.default, KeywordArg('key'), Ignored()) +permute_default = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, permute_default) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attention_mask')) +view_default_3 = CallFunction(aten.view.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_3, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_3, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +view_default_4 = CallFunction(aten.view.default, KeywordArg('value'), Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, div_Tensor, view_default_4) +_sfdp_pattern_24_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +view_default = CallFunction(aten.view.default, KeywordArg('query'), Ignored(), _users=2) +view_default_1 = CallFunction(aten.view.default, KeywordArg('key'), Ignored()) +permute_default = CallFunction(aten.permute.default, view_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, permute_default) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attention_mask')) +view_default_3 = CallFunction(aten.view.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_3, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_3, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +view_default_4 = CallFunction(aten.view.default, KeywordArg('value'), Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, convert_element_type_default, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, bmm_default_2, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_1, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +view_default_7 = CallFunction(aten.view.default, fma_default, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +view_default_8 = CallFunction(aten.view.default, convert_element_type_default_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, permute_default, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +permute_default_4 = CallFunction(aten.permute.default, bmm_default_4, Ignored()) +view_default_10 = CallFunction(aten.view.default, permute_default_4, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, convert_element_type_default, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_24_half_training = MultiOutputPattern([view_default_5, + view_default_9, + view_default_10, + view_default_11, + None +]) + + +view_default = CallFunction(aten.view.default, KeywordArg('query'), Ignored()) +view_default_1 = CallFunction(aten.view.default, KeywordArg('key'), Ignored()) +permute_default = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, permute_default) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, view_default_2, KeywordArg('attention_mask')) +view_default_3 = CallFunction(aten.view.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_3, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_3, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +view_default_4 = CallFunction(aten.view.default, KeywordArg('value'), Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, convert_element_type_default, view_default_4) +_sfdp_pattern_24_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_3.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_3.py new file mode 100644 index 0000000000000000000000000000000000000000..2c7f7519ad0570d2c2f700d4081c9b7253d16657 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_3.py @@ -0,0 +1,190 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale_factor'), _users=2) +amax_default = CallFunction(aten.amax.default, div_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, div_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +div_Tensor_2 = CallFunction(aten.div.Tensor, fma_default, KeywordArg('inv_scale_factor')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_3_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale_factor'), _users=2) +amax_default = CallFunction(aten.amax.default, div_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, div_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_3_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale_factor')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, convert_element_type_default_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, mul_Tensor_3, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, convert_element_type_default_4, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_5, KeywordArg('inv_scale_factor')) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_3_half_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, KeywordArg('inv_scale_factor')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_3_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_4.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_4.py new file mode 100644 index 0000000000000000000000000000000000000000..dc9cfd506f950415f4f90b49edf83815432a641c --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_4.py @@ -0,0 +1,190 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_2, KeywordArg('scale_factor'), _users=2) +amax_default = CallFunction(aten.amax.default, mul_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, mul_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, mul_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_2, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, convert_element_type_default, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_3) +mul_Tensor_5 = CallFunction(aten.mul.Tensor, mul_Tensor_4, div_Tensor, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_5, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_5) +mul_Tensor_6 = CallFunction(aten.mul.Tensor, fma_default, KeywordArg('scale_factor')) +view_default_8 = CallFunction(aten.view.default, mul_Tensor_6, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_4_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_2, KeywordArg('scale_factor'), _users=2) +amax_default = CallFunction(aten.amax.default, mul_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, mul_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_4_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_2, KeywordArg('scale_factor')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, mul_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, gt_Scalar, convert_element_type_default_1) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, mul_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_2, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_3) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, mul_Tensor_4, Ignored()) +mul_Tensor_5 = CallFunction(aten.mul.Tensor, convert_element_type_default_4, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_5, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_5) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +mul_Tensor_6 = CallFunction(aten.mul.Tensor, convert_element_type_default_5, KeywordArg('scale_factor')) +view_default_8 = CallFunction(aten.view.default, mul_Tensor_6, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_4_half_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_2, KeywordArg('scale_factor')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, mul_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_4_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_5.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_5.py new file mode 100644 index 0000000000000000000000000000000000000000..f211e56b17a0a19c05bcb0efc681ed2623f4edf7 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_5.py @@ -0,0 +1,178 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, view_default_7, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +div_Tensor_2 = CallFunction(aten.div.Tensor, fma_default, Ignored()) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_5_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_5_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_3, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_4, Ignored()) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_5_half_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_5_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_6.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_6.py new file mode 100644 index 0000000000000000000000000000000000000000..01304bf415163909c5ec5b03064ce064697e1de9 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_6.py @@ -0,0 +1,194 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +div_Tensor_2 = CallFunction(aten.div.Tensor, fma_default, Ignored()) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_6_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask'), _users=2) +amax_default = CallFunction(aten.amax.default, add_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, add_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +expand_default_2 = CallFunction(aten.expand.default, div_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_6_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored(), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored(), _users=2) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, convert_element_type_default_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, mul_Tensor_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, convert_element_type_default_1, Ignored(), _users=2) +neg_default = CallFunction(aten.neg.default, convert_element_type_default_2) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_1) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, view_default_7, mul_Tensor_2) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, mul_Tensor_3, Ignored()) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, convert_element_type_default_4, convert_element_type_default_2, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_5 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_5, Ignored()) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_2 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_2) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_3, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_4 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_5 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_5, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +_sfdp_pattern_6_half_training = MultiOutputPattern([view_default_5, + view_default_9, + permute_default_4, + view_default_11, + None, + None +]) + + +expand_default = CallFunction(aten.expand.default, KeywordArg('query'), Ignored()) +view_default = CallFunction(aten.view.default, expand_default, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default, Ignored()) +view_default_1 = CallFunction(aten.view.default, expand_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored()) +add_Tensor = CallFunction(aten.add.Tensor, div_Tensor, KeywordArg('attn_mask')) +convert_element_type_default = CallFunction(prims.convert_element_type.default, add_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +expand_default_3 = CallFunction(aten.expand.default, KeywordArg('value'), Ignored()) +view_default_4 = CallFunction(aten.view.default, expand_default_3, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_6_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_7.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_7.py new file mode 100644 index 0000000000000000000000000000000000000000..b463c7e64a6130dd85063f5fb88c2317c392c8f2 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_7.py @@ -0,0 +1,221 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, div_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, div_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, mul_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, bmm_default_2, Ignored()) +view_default_7 = CallFunction(aten.view.default, convert_element_type_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, convert_element_type_default_2, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +div_Tensor_2 = CallFunction(aten.div.Tensor, fma_default, Ignored()) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_7_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, div_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, div_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_7_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, mul_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, convert_element_type_default_2, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_4, Ignored()) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_7_half_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_7_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_8.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_8.py new file mode 100644 index 0000000000000000000000000000000000000000..3faff67089b17ad370d4d7642539c7ce3fd5d235 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_8.py @@ -0,0 +1,205 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, div_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, div_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, bmm_default_2, Ignored()) +view_default_7 = CallFunction(aten.view.default, convert_element_type_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_2, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +div_Tensor_2 = CallFunction(aten.div.Tensor, fma_default, Ignored()) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_8_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, div_Tensor, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, div_Tensor, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_8_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +mul_Tensor = CallFunction(aten.mul.Tensor, convert_element_type_default_2, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, convert_element_type_default_3, Ignored()) +view_default_8 = CallFunction(aten.view.default, div_Tensor_2, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, view_default_9, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_8_half_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11 +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +expand_default = CallFunction(aten.expand.default, permute_default, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, view_default_2, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_8_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_9.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_9.py new file mode 100644 index 0000000000000000000000000000000000000000..3bf77120e836a5b577ea8a335f00bd63fd27163a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/_sfdp_pattern_9.py @@ -0,0 +1,221 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, permute_default, Ignored()) +expand_default = CallFunction(aten.expand.default, div_Tensor, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_2, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_2, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, mul_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, bmm_default_2, Ignored()) +view_default_7 = CallFunction(aten.view.default, convert_element_type_default_1, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, convert_element_type_default_2, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +view_default_8 = CallFunction(aten.view.default, fma_default, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, view_default_9, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, div_Tensor_2, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_9_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, permute_default, Ignored()) +expand_default = CallFunction(aten.expand.default, div_Tensor, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, view_default_2, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, view_default_2, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_9_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) + + +rand_default = CallFunction(aten.rand.default, Ignored(), dtype=Ignored(), device=Ignored(), pin_memory=False) +gt_Scalar = CallFunction(aten.gt.Scalar, rand_default, KeywordArg('dropout_p'), _users=2) +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, permute_default, Ignored()) +expand_default = CallFunction(aten.expand.default, div_Tensor, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored(), _users=2) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored(), _users=2) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, view_default_2, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList, _users=3) +mul_Tensor = CallFunction(aten.mul.Tensor, gt_Scalar, div_Tensor_1) +mul_Tensor_1 = CallFunction(aten.mul.Tensor, mul_Tensor, Ignored()) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, mul_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored(), _users=2) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored(), _users=2) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +view_default_5 = CallFunction(aten.view.default, bmm_default_1, Ignored()) +neg_default = CallFunction(aten.neg.default, div_Tensor_1) +view_default_6 = CallFunction(aten.view.default, KeywordArg('tangents_1'), Ignored(), _users=2) +permute_default_4 = CallFunction(aten.permute.default, view_default_4, Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, view_default_6, permute_default_4) +view_default_7 = CallFunction(aten.view.default, bmm_default_2, Ignored()) +convert_element_type_default_2 = CallFunction(prims.convert_element_type.default, view_default_7, Ignored()) +convert_element_type_default_3 = CallFunction(prims.convert_element_type.default, gt_Scalar, Ignored()) +mul_Tensor_2 = CallFunction(aten.mul.Tensor, convert_element_type_default_3, Ignored()) +mul_Tensor_3 = CallFunction(aten.mul.Tensor, convert_element_type_default_2, mul_Tensor_2) +mul_Tensor_4 = CallFunction(aten.mul.Tensor, mul_Tensor_3, div_Tensor_1, _users=2) +sum_dim_IntList_1 = CallFunction(aten.sum.dim_IntList, mul_Tensor_4, Ignored(), True) +fma_default = CallFunction(prims.fma.default, neg_default, sum_dim_IntList_1, mul_Tensor_4) +convert_element_type_default_4 = CallFunction(prims.convert_element_type.default, fma_default, Ignored()) +view_default_8 = CallFunction(aten.view.default, convert_element_type_default_4, Ignored(), _users=2) +permute_default_5 = CallFunction(aten.permute.default, view_default_1, Ignored()) +bmm_default_3 = CallFunction(aten.bmm.default, view_default_8, permute_default_5) +view_default_9 = CallFunction(aten.view.default, bmm_default_3, Ignored()) +div_Tensor_2 = CallFunction(aten.div.Tensor, view_default_9, Ignored()) +permute_default_6 = CallFunction(aten.permute.default, div_Tensor_2, Ignored()) +permute_default_7 = CallFunction(aten.permute.default, view_default, Ignored()) +bmm_default_4 = CallFunction(aten.bmm.default, permute_default_7, view_default_8) +view_default_10 = CallFunction(aten.view.default, bmm_default_4, Ignored()) +permute_default_8 = CallFunction(aten.permute.default, view_default_10, Ignored()) +permute_default_9 = CallFunction(aten.permute.default, permute_default_8, Ignored()) +permute_default_10 = CallFunction(aten.permute.default, view_default_3, Ignored()) +bmm_default_5 = CallFunction(aten.bmm.default, permute_default_10, view_default_6) +view_default_11 = CallFunction(aten.view.default, bmm_default_5, Ignored()) +permute_default_11 = CallFunction(aten.permute.default, view_default_11, Ignored()) +_sfdp_pattern_9_half_training = MultiOutputPattern([view_default_5, + permute_default_6, + permute_default_9, + permute_default_11, + None +]) + + +permute_default = CallFunction(aten.permute.default, KeywordArg('query'), Ignored()) +div_Tensor = CallFunction(aten.div.Tensor, permute_default, Ignored()) +expand_default = CallFunction(aten.expand.default, div_Tensor, Ignored()) +clone_default = CallFunction(aten.clone.default, expand_default, memory_format=torch.contiguous_format) +view_default = CallFunction(aten.view.default, clone_default, Ignored()) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('key'), Ignored()) +permute_default_2 = CallFunction(aten.permute.default, permute_default_1, Ignored()) +expand_default_1 = CallFunction(aten.expand.default, permute_default_2, Ignored()) +clone_default_1 = CallFunction(aten.clone.default, expand_default_1, memory_format=torch.contiguous_format) +view_default_1 = CallFunction(aten.view.default, clone_default_1, Ignored()) +bmm_default = CallFunction(aten.bmm.default, view_default, view_default_1) +view_default_2 = CallFunction(aten.view.default, bmm_default, Ignored()) +convert_element_type_default = CallFunction(prims.convert_element_type.default, view_default_2, Ignored(), _users=2) +amax_default = CallFunction(aten.amax.default, convert_element_type_default, Ignored(), True) +sub_Tensor = CallFunction(aten.sub.Tensor, convert_element_type_default, amax_default) +exp_default = CallFunction(aten.exp.default, sub_Tensor, _users=2) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, exp_default, Ignored(), True) +div_Tensor_1 = CallFunction(aten.div.Tensor, exp_default, sum_dim_IntList) +convert_element_type_default_1 = CallFunction(prims.convert_element_type.default, div_Tensor_1, Ignored()) +expand_default_2 = CallFunction(aten.expand.default, convert_element_type_default_1, Ignored()) +view_default_3 = CallFunction(aten.view.default, expand_default_2, Ignored()) +permute_default_3 = CallFunction(aten.permute.default, KeywordArg('value'), Ignored()) +expand_default_3 = CallFunction(aten.expand.default, permute_default_3, Ignored()) +clone_default_2 = CallFunction(aten.clone.default, expand_default_3, memory_format=torch.contiguous_format) +view_default_4 = CallFunction(aten.view.default, clone_default_2, Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, view_default_3, view_default_4) +_sfdp_pattern_9_half_inference = CallFunction(aten.view.default, bmm_default_1, Ignored(), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/addmm_pattern.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/addmm_pattern.py new file mode 100644 index 0000000000000000000000000000000000000000..70d672442170905a411de63187a5b579b286bf73 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/addmm_pattern.py @@ -0,0 +1,53 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +addmm_default = CallFunction(aten.addmm.default, KeywordArg('input'), KeywordArg('mat1'), KeywordArg('mat2'), beta=KeywordArg('beta'), alpha=KeywordArg('alpha')) +mul_Scalar = CallFunction(aten.mul.Scalar, KeywordArg('tangents_1'), KeywordArg('beta')) +sum_dim_IntList = CallFunction(aten.sum.dim_IntList, mul_Scalar, Ignored(), True) +view_default = CallFunction(aten.view.default, sum_dim_IntList, Ignored()) +permute_default = CallFunction(aten.permute.default, KeywordArg('mat2'), Ignored()) +mm_default = CallFunction(aten.mm.default, KeywordArg('tangents_1'), permute_default) +mul_Scalar_1 = CallFunction(aten.mul.Scalar, mm_default, KeywordArg('alpha')) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('mat1'), Ignored()) +mm_default_1 = CallFunction(aten.mm.default, permute_default_1, KeywordArg('tangents_1')) +mul_Scalar_2 = CallFunction(aten.mul.Scalar, mm_default_1, KeywordArg('alpha')) +addmm_pattern_training = MultiOutputPattern([addmm_default, + view_default, + mul_Scalar_1, + mul_Scalar_2, + None, + None +]) + + +addmm_pattern_inference = CallFunction(aten.addmm.default, KeywordArg('input'), KeywordArg('mat1'), KeywordArg('mat2'), beta=KeywordArg('beta'), alpha=KeywordArg('alpha'), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/bmm_pattern.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/bmm_pattern.py new file mode 100644 index 0000000000000000000000000000000000000000..7b5ac59d6f06c97523e071e9b3ea78516ff09c0e --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/bmm_pattern.py @@ -0,0 +1,45 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +bmm_default = CallFunction(aten.bmm.default, KeywordArg('mat1'), KeywordArg('mat2')) +permute_default = CallFunction(aten.permute.default, KeywordArg('mat2'), Ignored()) +bmm_default_1 = CallFunction(aten.bmm.default, KeywordArg('tangents_1'), permute_default) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('mat1'), Ignored()) +bmm_default_2 = CallFunction(aten.bmm.default, permute_default_1, KeywordArg('tangents_1')) +bmm_pattern_training = MultiOutputPattern([bmm_default, + bmm_default_1, + bmm_default_2 +]) + + +bmm_pattern_inference = CallFunction(aten.bmm.default, KeywordArg('mat1'), KeywordArg('mat2'), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/mm_pattern.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/mm_pattern.py new file mode 100644 index 0000000000000000000000000000000000000000..058a2f881e3a52cb147cfd3fa0ef2bbd0a25945a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/serialized_patterns/mm_pattern.py @@ -0,0 +1,45 @@ +# mypy: ignore-errors + +# noqa: F401, E501 +# This is an auto-generated file. Please do not modify it by hand. +# To re-generate, run: +# cd ~/pytorch && python torchgen/fuse/gen_patterns.py + +import torch +import torch._inductor +import operator + +aten = torch.ops.aten +prims = torch.ops.prims + +from torch._inductor.pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethod, + CallMethodVarArgs, + CallModule, + CallModuleVarArgs, + ExclusiveKeywordArg, + Ignored, + KeywordArg, + ListOf, + MultiOutputPattern, + PatternExpr, + RepeatedExpr, + _TargetArgsExpr, + _TargetExpr, + _TargetExprVarArgs, +) +mm_default = CallFunction(aten.mm.default, KeywordArg('mat1'), KeywordArg('mat2')) +permute_default = CallFunction(aten.permute.default, KeywordArg('mat2'), Ignored()) +mm_default_1 = CallFunction(aten.mm.default, KeywordArg('tangents_1'), permute_default) +permute_default_1 = CallFunction(aten.permute.default, KeywordArg('mat1'), Ignored()) +mm_default_2 = CallFunction(aten.mm.default, permute_default_1, KeywordArg('tangents_1')) +mm_pattern_training = MultiOutputPattern([mm_default, + mm_default_1, + mm_default_2 +]) + + +mm_pattern_inference = CallFunction(aten.mm.default, KeywordArg('mat1'), KeywordArg('mat2'), _users=0) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/split_cat.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/split_cat.py new file mode 100644 index 0000000000000000000000000000000000000000..6347bda3b525c200ce21cb87ecc2b4a3a685e25c --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/fx_passes/split_cat.py @@ -0,0 +1,3040 @@ +# mypy: allow-untyped-defs +import itertools +import logging +import operator +import os +from collections import defaultdict +from collections.abc import Callable, Sequence +from typing import Any, TypeAlias + +import torch +from torch._dynamo.utils import counters +from torch.fx.experimental.symbolic_shapes import free_symbols, guard_or_false +from torch.utils._ordered_set import OrderedSet + +from ..pattern_matcher import ( + Arg, + CallFunction, + CallFunctionVarArgs, + CallMethodVarArgs, + FailedMatch, + get_arg_value, + Ignored, + KeywordArg, + ListOf, + Match, + MatchContext, + MULTIPLE, + PatternExpr, + PatternMatcherPass, + register_graph_pattern, + RepeatedExpr, +) +from .group_batch_fusion import is_node_meta_valid, POST_GRAD_FUSIONS, PRE_GRAD_FUSIONS + + +log = logging.getLogger(__name__) + +_Arguments: TypeAlias = tuple[torch.fx.node.Argument, ...] +_TransformParam: TypeAlias = tuple[ + _Arguments | None, + _Arguments | None, + _Arguments | None, + _Arguments | None, +] +_Range: TypeAlias = tuple[int, int] + + +PRE_GRAD_PATTERNS: dict[str, PatternMatcherPass] = {} +POST_GRAD_PATTERNS: dict[str, PatternMatcherPass] = {} + +pre_grad_pass_names = [ + "normalization_pass", + "remove_split_with_size_one_pass", + "merge_getitem_cat_pass", + "merge_stack_tahn_unbind_pass", + "merge_splits_pass", + "mutate_cat_pass", + "split_cat_pass", + "unbind_stack_pass", + "split_cat_to_slices_pass", + "unbind_cat_to_view_pass", + "split_stack_to_cats_pass", + "unbind_stack_to_slices_pass", + "move_reshape_out_of_split_stack_pass", + "einsum_to_pointwise_pass", +] + +post_grad_pass_names = [ + "normalization_aten_pass", + "decompose_mm_pass", + "unbind_stack_aten_pass", + "shape_padding_multiplier", + "pad_aten_mm_pass", + "split_cat_aten_pass", + "select_cat_aten_pass", + "move_view_after_cat_aten_pass", +] + +backend = os.environ.get("TORCHINDUCTOR_PATTERN_MATCH_BACKEND", "inductor") + +for pass_name in pre_grad_pass_names: + # exclude all passes from the group batch fusion + # they do not use pattern matcher + if pass_name in PRE_GRAD_FUSIONS: + continue + PRE_GRAD_PATTERNS[pass_name] = PatternMatcherPass( + pass_name=pass_name, + ) + +for pass_name in post_grad_pass_names: + # exclude all passes from the group batch fusion + # they do not use pattern matcher + if pass_name in POST_GRAD_FUSIONS: + continue + POST_GRAD_PATTERNS[pass_name] = PatternMatcherPass( + pass_name=pass_name, + ) + + +def construct_pattern_matcher_pass(pass_name: str): + """ + Return the specific pattern_matcher_pass given the pass name. + """ + if pass_name in PRE_GRAD_PATTERNS: + return PRE_GRAD_PATTERNS[pass_name] + else: + return POST_GRAD_PATTERNS[pass_name] + + +def _get_split_args_default(split_node): + input_kwarg = "tensor" + split_size_kwarg = "split_size_or_sections" + dim_kwarg = "dim" + default_dim_value = 0 + if split_node.op == "call_method": + split_size_kwarg = "split_size" + return ( + get_arg_value(split_node, 0, input_kwarg), + get_arg_value(split_node, 1, split_size_kwarg), + get_arg_value(split_node, 2, dim_kwarg) or default_dim_value, + ) + + +def _get_dim(node: Any): + assert isinstance(node, torch.fx.Node) + if "dim" in node.kwargs: + assert isinstance(node.kwargs["dim"], int) + return node.kwargs["dim"] + if node.target is torch.unbind: + if len(node.args) == 2: + assert isinstance(node.args[-1], int) + return node.args[-1] + return 0 # defaults to dim=0 + if node.target is torch.split: + if len(node.args) == 3: + assert isinstance(node.args[-1], int) + return node.args[-1] + return 0 # defaults to dim=0 + raise AssertionError( + f"Can't extract `dim` from {node.target} {node.args} {node.kwargs}" + ) + + +# noqa: W605 +# ############The pattern to be optimized is######### +# unbind (dim=0) +# / ... \ +# getitem getitem -> user=1 +# | | +# split split -> dim=1, user=1, split_section_size=1 +# | | +# getitem getitem -> user=1 +# \ / +# cat (dim=1) -> user=1 +# | + +# ################After transformation############# +# unbind (dim=0) +# / ... \ +# getitem getitem -> user=1 +# \ / +# cat (dim=1) -> user=1 +# | + + +def normalize_split_base( + match: Match, + _get_split_args: Callable[ + [torch.fx.Node], tuple[torch.fx.Node | None, Any | None, int | None] + ], +): + """ + Normalize split with split_size into split_with_sizes, so that we only deal with one type of split in + subsequent optimizations + """ + split_node = match.nodes[0] + graph = match.graph + split_input, split_size, split_dim = _get_split_args(split_node) + if split_input is None or split_dim is None or split_size is None: + log.debug("couldn't find split args") + return + if not is_node_meta_valid(split_node): + log.debug("example value absent for node: %s", split_node) + return + assert isinstance(split_node.meta["example_value"], (list, tuple)) + split_sections = [t.size()[split_dim] for t in split_node.meta["example_value"]] + + if any(isinstance(section, torch.SymInt) for section in split_sections): + # TODO dynamic_shapes with assume_static_by_default=False fails while AOT Autograd tracing. + return + if split_dim < 0: # Normalize split dim + split_dim += split_input.meta["example_value"].dim() + + new_args = (split_input, split_sections) + new_kwargs = {"dim": split_dim} + if ( + split_node.args == new_args + and split_node.kwargs == new_kwargs + and split_node.op == "call_function" + ): + return + + with graph.inserting_after(split_node): + new_split_node = graph.call_function( + torch.split, + args=new_args, + kwargs=new_kwargs, # type: ignore[arg-type] + ) + split_node.replace_all_uses_with(new_split_node) + new_split_node.meta.update(split_node.meta) + graph.erase_node(split_node) + counters[backend]["normalization_pass"] += 1 + + +@register_graph_pattern( + CallFunctionVarArgs(torch.split, users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_pass"), +) +@register_graph_pattern( + CallMethodVarArgs("split", users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_pass"), +) +def normalize_split_default(match: Match, *args, **kwargs): + return normalize_split_base(match, _get_split_args_default) + + +@register_graph_pattern( + CallFunctionVarArgs(torch.split, users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("remove_split_with_size_one_pass"), +) +@register_graph_pattern( + CallMethodVarArgs("split", users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("remove_split_with_size_one_pass"), +) +def remove_split_with_size_one(match: Match, *args, **kwargs): + graph = match.graph + split_node = match.nodes[0] + split_input, split_size, split_dim = _get_split_args_default(split_node) + if split_input is None or split_dim is None or split_size is None: + log.debug("couldn't find split args") + return + if not is_node_meta_valid(split_node): + log.debug("example value absent for node: %s", split_node) + return + assert isinstance(split_node.meta["example_value"], (list, tuple)) + split_sections = [t.size()[split_dim] for t in split_node.meta["example_value"]] + + if any(isinstance(section, torch.SymInt) for section in split_sections): + # TODO dynamic_shapes with assume_static_by_default=False fails while AOT Autograd tracing. + return + # remove the dummy split whose split sections size is one + # theoretically nodes with no users should be removed, but we have seen the corner case + # thus we add its users check to walk around the StopIteration error. + if len(split_sections) == 1 and len(split_node.users.keys()) > 0: + # find the grand children of the split_node + next_users = find_next_users(split_node) + user = next(iter(split_node.users.keys())) + # replace the users of grand child node with the input node + for next_user in next_users: + next_user.replace_input_with(user, split_input) + # erase the split node and its child + graph.erase_node(user) + graph.erase_node(split_node) + counters[backend]["remove_split_with_size_one_pass"] += 1 + + +@register_graph_pattern( + CallFunctionVarArgs(torch.unbind, users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_pass"), +) +@register_graph_pattern( + CallMethodVarArgs("unbind", users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_pass"), +) +def normalize_unbind_default(match: Match, *args, **kwargs): + node = match.nodes[0] + graph = match.graph + input = get_arg_value(node, 0, "input") + dim = get_arg_value(node, 1, "dim") + if dim is None: + axis = node.kwargs.get("axis") + if axis is not None: + dim = axis + else: + dim = 0 + if input is None: + log.debug("couldn't find unbind args") + return + if not is_node_meta_valid(input): + log.debug("example value absent for node: %s", input) + return + ndim = input.meta["example_value"].ndim + # pyrefly: ignore [unsupported-operation] + if dim < 0: # Normalize unbind dim + dim += ndim + with graph.inserting_after(node): + new_node = graph.call_function( + torch.unbind, + args=(input,), + kwargs={"dim": dim}, + ) + node.replace_all_uses_with(new_node) + new_node.meta.update(node.meta) + graph.erase_node(node) + counters[backend]["normalization_pass"] += 1 + + +@register_graph_pattern( + CallFunctionVarArgs([torch.cat, torch.concat], users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_pass"), +) +def normalize_cat_default(match: Match, *args, **kwargs): + cat_node = match.nodes[0] + graph = match.graph + tensors = get_arg_value(cat_node, 0, "tensors") + cat_dim = get_arg_value(cat_node, 1, "dim") + if cat_dim is None: + cat_axis = cat_node.kwargs.get("axis") + if cat_axis is not None: + cat_dim = cat_axis + else: + cat_dim = 0 + if tensors is None or cat_dim is None: + log.debug("couldn't find cat args") + return + assert isinstance(tensors, (list, tuple)) + for tensor in itertools.chain([cat_node], tensors): + if not is_node_meta_valid(tensor): + log.debug("example value absent for node: %s", tensor) + return + + ndim = cat_node.meta["example_value"].dim() + + def is_empty_tensor(x): + # special case where torch.cat supports cat'ing with an empty tensor + x_shape = x.meta["example_value"].shape + return len(x_shape) == 1 and guard_or_false(x_shape[0] == 0) + + assert all( + ndim == x.meta["example_value"].dim() or is_empty_tensor(x) for x in tensors + ) + + # pyrefly: ignore [unsupported-operation] + if cat_dim < 0: # Normalize cat dim + cat_dim += ndim + + new_args = (tensors,) + new_kwargs = {"dim": cat_dim} + if ( + cat_node.args == new_args + and cat_node.kwargs == new_kwargs + and cat_node.op == "call_function" + and cat_node.target is torch.cat + ): + return + + with graph.inserting_after(cat_node): + new_cat_node = graph.call_function( + torch.cat, + args=new_args, + kwargs=new_kwargs, + ) + cat_node.replace_all_uses_with(new_cat_node) + new_cat_node.meta.update(cat_node.meta) + graph.erase_node(cat_node) + counters[backend]["normalization_pass"] += 1 + + +@register_graph_pattern( + CallFunctionVarArgs(torch.stack, users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_pass"), +) +def normalize_stack_default(match: Match, *args, **kwargs): + node = match.nodes[0] + graph = match.graph + tensors = get_arg_value(node, 0, "tensors") + dim = get_arg_value(node, 1, "dim") or 0 + if tensors is None or dim is None: + log.debug("couldn't find stack args") + return + assert isinstance(tensors, (list, tuple)) + + # A bug in pytorch, some nodes miss the example_value metadata + for tensor in itertools.chain([node], tensors): + if not is_node_meta_valid(tensor): + log.debug("example value absent for node: %s", tensor) + return + + ndim = node.meta["example_value"].dim() + if dim < 0: # Normalize dim + dim += ndim + + with graph.inserting_after(node): + new_node = graph.call_function( + node.target, # type: ignore[arg-type] + args=(tensors,), + kwargs={"dim": dim}, + ) + node.replace_all_uses_with(new_node) + new_node.meta.update(node.meta) + graph.erase_node(node) + counters[backend]["normalization_pass"] += 1 + + +def find_next_users(split_node: torch.fx.Node) -> list[torch.fx.Node]: + next_users = [] + for getitem_node in split_node.users: + for getitem_user in getitem_node.users: + if getitem_user not in next_users: + next_users.append(getitem_user) + return next_users + + +@register_graph_pattern( + CallMethodVarArgs("squeeze", users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_pass"), +) +def normalize_squeeze_default(match: Match, *args, **kwargs): + squeeze_node = match.nodes[0] + squeeze_input = get_arg_value(squeeze_node, 0) + + if "dim" in squeeze_node.kwargs: + assert len(squeeze_node.args) == 1 + dim = squeeze_node.kwargs["dim"] + elif len(squeeze_node.args) == 1: + # squeeze(Tensor) + dim = None + elif len(squeeze_node.args) == 2: + # squeeze(Tensor self, int dim) + # squeeze(Tensor self, int[] dim) + dim = squeeze_node.args[1] + else: + # squeeze(Tensor self, int[] dim) (called with varargs) + dim = squeeze_node.args[1:] + + if isinstance(dim, Sequence) and len(dim) == 1: + dim = dim[0] + + with match.graph.inserting_after(squeeze_node): + if dim is None: + new_squeeze_node = match.graph.call_function( + torch.squeeze, args=(squeeze_input,) + ) + else: + new_squeeze_node = match.graph.call_function( + torch.squeeze, args=(squeeze_input,), kwargs={"dim": dim} + ) + squeeze_node.replace_all_uses_with(new_squeeze_node) + new_squeeze_node.meta.update(squeeze_node.meta) + match.graph.erase_node(squeeze_node) + + +@register_graph_pattern( + CallMethodVarArgs("reshape", users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_pass"), +) +def normalize_reshape_default(match: Match, *args, **kwargs): + reshape_node = match.nodes[0] + if not is_node_meta_valid(reshape_node): + log.debug("example value absent for node: %s", reshape_node) + return + reshape_input = get_arg_value(reshape_node, 0) + + if free_symbols(reshape_node.meta["example_value"].shape): + log.debug("dynamic shape not supported: %s", reshape_node) + return + + with match.graph.inserting_after(reshape_node): + new_reshape_node = match.graph.call_function( + torch.reshape, + args=(reshape_input, tuple(reshape_node.meta["example_value"].shape)), + ) + reshape_node.replace_all_uses_with(new_reshape_node) + new_reshape_node.meta.update(reshape_node.meta) + match.graph.erase_node(reshape_node) + + +@register_graph_pattern( + CallMethodVarArgs("clamp", users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_pass"), +) +@register_graph_pattern( + CallFunctionVarArgs(torch.clamp, users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_pass"), +) +def normalize_clamp_default(match: Match, *args, **kwargs): + clamp_node = match.nodes[0] + if not is_node_meta_valid(clamp_node): + log.debug("example value absent for node: %s", clamp_node) + return + + if free_symbols(clamp_node.meta["example_value"].shape): + log.debug("dynamic shape not supported: %s", clamp_node) + return + if len(clamp_node.args) > 1: + args = (get_arg_value(clamp_node, 0),) + kwargs = { + "min": get_arg_value(clamp_node, 1, kwarg_name="min"), + "max": get_arg_value(clamp_node, 2, kwarg_name="max"), + } + else: + args = clamp_node.args + kwargs = clamp_node.kwargs + with match.graph.inserting_after(clamp_node): + new_clamp_node = match.graph.call_function( + torch.clamp, + args=args, + kwargs=kwargs, + ) + clamp_node.replace_all_uses_with(new_clamp_node) + new_clamp_node.meta.update(clamp_node.meta) + match.graph.erase_node(clamp_node) + + +@register_graph_pattern( + CallMethodVarArgs("detach", users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_pass"), +) +def normalize_detach_default(match: Match, *args, **kwargs): + detach_node = match.nodes[0] + if not is_node_meta_valid(detach_node): + log.debug("example value absent for node: %s", detach_node) + return + + if free_symbols(detach_node.meta["example_value"].shape): + log.debug("dynamic shape not supported: %s", detach_node) + return + + with match.graph.inserting_after(detach_node): + new_detach_node = match.graph.call_function( + torch.detach, + args=detach_node.args, + ) + detach_node.replace_all_uses_with(new_detach_node) + new_detach_node.meta.update(detach_node.meta) + match.graph.erase_node(detach_node) + + +class TorchSplit(CallFunction): + """ + Matches a call to torch.split if it is in a normalized form. Ensures that all users of + splits are unique getitems. + """ + + def __init__(self, arg, sizes, func=torch.split) -> None: + # using KeywordArg("dim") for `dim` checks they all match + super().__init__(func, arg, sizes, _users=MULTIPLE, dim=KeywordArg("dim")) + + def _match(self, node: torch.fx.Node, ctx: MatchContext): + m = super()._match(node, ctx) + if not m: + return m + split_sections = node.args[1] + if not isinstance(split_sections, (list, tuple)): + return FailedMatch("split not normalized") + # check users are all unique getitems + seen_idxs = OrderedSet[int]() + for user in node.users: + if not CallFunction(operator.getitem, Arg(), Arg()).match(user): + # This should ideally never happen. Split user should always be a getitem + return FailedMatch(f"user of split not a getitem: {user}") + if not isinstance(user.args[1], int): + return FailedMatch("only integer getitems are handled") + if user.args[1] in seen_idxs: + return FailedMatch(f"duplicate getitem {user.args[1]}") + if user.args[-1] < 0: # type: ignore[operator] + # This shouldn't ideally happen as dynamo normalizes indexes to positive + return FailedMatch("negative index") + seen_idxs.add(user.args[1]) + return m + + +@register_graph_pattern( + TorchSplit( + CallFunction( + operator.getitem, + TorchSplit( + KeywordArg("first_split_input"), + KeywordArg("first_split_sections"), + ), + Ignored(), + ), + KeywordArg("next_split_sections"), + ), + pass_dict=construct_pattern_matcher_pass("merge_splits_pass"), +) +def merge_splits( + match: Match, + first_split_input: torch.fx.Node, + first_split_sections: list[int], + next_split_sections: list[int], + # Note: dim is implicitly passed by TorchSplit, as it internally uses a pattern with dim + dim: int, +): + node = match.output_node() + # it is possible that the split has no users, + # we check the corner case and skip the pattern + if len(node.users.keys()) == 0: + return + graph = match.graph + first_split = node.args[0].args[0] # type: ignore[union-attr] + next_split_index = node.args[0].args[1] # type: ignore[union-attr] + + new_split_sections = list(first_split_sections) + new_split_sections[next_split_index : next_split_index + 1] = next_split_sections # type: ignore[operator, misc] + + first_split_dim = _get_dim(first_split) + + to_remove = [] + + with graph.inserting_before(first_split): # type: ignore[arg-type] + # Add the new split node + new_split = graph.call_function( + torch.split, + args=(first_split_input, new_split_sections), + kwargs={"dim": first_split_dim}, + ) + if is_node_meta_valid(first_split_input): + new_split.meta["example_value"] = torch.split( + first_split_input.meta["example_value"], + new_split_sections, + dim=first_split_dim, + ) + first_split_num_to_user = { + user.args[1]: user + for user in first_split.users # type: ignore[union-attr] + } + + new_split_num = 0 + for split_num in range(len(first_split_sections)): + if split_num not in first_split_num_to_user: + new_split_num += 1 + continue + old_getitem = first_split_num_to_user[split_num] + if split_num != next_split_index: + old_getitem.update_arg(0, new_split) + old_getitem.update_arg(1, new_split_num) + new_split_num += 1 + else: + next_split_num_to_user = {user.args[1]: user for user in node.users} + # It is not necessary all getitems from the split node are used. + for next_split_num in range(len(next_split_sections)): + with graph.inserting_after(new_split): + new_getitem = graph.call_function( + operator.getitem, args=(new_split, new_split_num) + ) + new_split_num += 1 + if next_split_num not in next_split_num_to_user: + continue + next_getitem = next_split_num_to_user[next_split_num] + new_getitem.meta.update(next_getitem.meta) + next_getitem.replace_all_uses_with(new_getitem) + to_remove.append(next_getitem) + to_remove.append(node) + to_remove.append(old_getitem) + + to_remove.append(first_split) # type: ignore[arg-type] + for node in to_remove: + graph.erase_node(node) + + counters[backend]["merge_splits_pass"] += 1 + + +class SplitCatSimplifier: + """ + Helper class to simplify split-cat pattern. In simple cases, both split and cat node can be removed in a "split->cat" + pattern. However, there are various cases where they can't and we need to simplify split/ add transforms before cat. + Some such cases are: + 1. Final node has additional args (not coming from the initial split) + 2. Shuffling of args between split/cat + 3. Some final nodes are non-(cat/stack) + 4. Split-dim != cat-dim (but equal split) + + Note that any combination of the above cases can happen. + + To deal with 1, 2, & 3 - we iterate over all users of split. And figure out common "ranges" that can be merged. + Then, we simplify the split accordingly. In the best case, split can be entirely removed. + + To deal with 4, we add some transformations (unflatten + movedim) (See `get_transform_params`). + + Finally, depending on final node being cat or stack, unsqueeze/flatten needs to be added. + + """ + + def simplify( + self, + graph: torch.fx.Graph, + split_node: torch.fx.Node, + split_sections: list[int], + ): + # Find the next users (i.e. users after the getitem) + next_users = find_next_users(split_node) + # Gather inputs of the next users. When inputs come from `split_node`, they are instead represented by + # a tuple indicating the split ranges. See `get_user_input_list` for more details + user_inputs_list = self.get_user_input_list(split_node, next_users) + # Simplify the split_sections based on user_inputs_list. In simpler cases, len(simplified_split_ranges) == 1 and + # we can simply replace the split node. Otherwise, we simplify it. + simplified_split_ranges = self.get_simplified_split_ranges( + split_sections, next_users, user_inputs_list + ) + if not simplified_split_ranges: # Simplification not possible + return + transform_params_list = self.get_transform_params( + split_node, next_users, user_inputs_list + ) + if not transform_params_list: + return + + # Start actual replacement + user_inputs_list_new = self.replace_split( + graph, split_node, split_sections, user_inputs_list, simplified_split_ranges + ) + self.replace_cat( + graph, + split_node, + next_users, + user_inputs_list_new, + transform_params_list, # type: ignore[arg-type] + ) + self.erase_old_nodes(graph, split_node, next_users) # type: ignore[arg-type] + counters[backend]["unbind_stack_pass"] += 1 + + def get_user_input_list( + self, split_node: torch.fx.Node, next_users: list[torch.fx.Node] + ) -> list[list[torch.fx.Node | _Range]]: + """ + Returns list of inputs to the following user nodes, in order. The outer list represents the user node. The inner + list represents the inputs to that particular node. This list can either contain + - a tuple representing the ranges of get_items that should go into the cat (closed interval) + - torch.fx.Node representing "other" inputs (which are not coming from our split) + """ + user_inputs_list: list[list[torch.fx.Node | _Range]] = [] + for user in next_users: + if user.target in (torch.cat, torch.stack): + user_inputs_list.append(self.get_merged_user_inputs(split_node, user)) + else: + user_inputs_list.append(self.get_non_cat_node_input(split_node, user)) # type: ignore[arg-type] + return user_inputs_list + + def get_merged_user_inputs( + self, split_node: torch.fx.Node, cat_node: torch.fx.Node + ) -> list[torch.fx.Node | _Range]: + user_inputs = get_arg_value(cat_node, 0, "tensors") + simplified_user_inputs = [] + split_users = OrderedSet(split_node.users.keys()) + for user_input in user_inputs: + if user_input not in split_users: + simplified_user_inputs.append(user_input) + else: + # Add which "getitem" cat depends on + simplified_user_inputs.append(user_input.args[1]) + return self.merge_consecutive_inputs(simplified_user_inputs) + + def get_non_cat_node_input( + self, split_node: torch.fx.Node, node: torch.fx.Node + ) -> list[_Range]: + """ + Get input for a non cat node in the same format as `get_merged_user_inputs` + """ + node_input = [] + split_users = OrderedSet(split_node.users.keys()) + for node_arg in node.all_input_nodes: + if node_arg in split_users: + getitem_num = get_arg_value(node_arg, 1) + node_input.append((getitem_num, getitem_num)) + return node_input + + def merge_consecutive_inputs( + self, inputs: list[torch.fx.Node | int] + ) -> list[torch.fx.Node | _Range]: + """ + Merge consecutive inputs going into a user node. + + For e.g. + [arg0, 0, 1, 2, arg1] -> [arg0, (0, 2), arg1] + """ + merged_ranges = [] + cur_range = None + for input_ in inputs: + if isinstance(input_, int): + if not cur_range: + cur_range = [input_, input_] + elif input_ == cur_range[1] + 1: + cur_range[1] += 1 + else: + merged_ranges.append(tuple(cur_range)) + cur_range = [input_, input_] + else: + if cur_range: + merged_ranges.append(tuple(cur_range)) + cur_range = None + merged_ranges.append(input_) # type: ignore[arg-type] + if cur_range: + merged_ranges.append(tuple(cur_range)) + return merged_ranges # type: ignore[return-value] + + def get_simplified_split_ranges( + self, + split_sections, + next_users, + user_inputs_list: list[list[torch.fx.Node | _Range]], + ) -> list[_Range] | None: + ranges = OrderedSet[Any]() + for user_inputs in user_inputs_list: + ranges.update(u for u in user_inputs if isinstance(u, tuple)) + + cumulative_sizes = [0] + torch.cumsum(torch.tensor(split_sections), 0).tolist() + split_ranges = sorted( + [(cumulative_sizes[r[0]], cumulative_sizes[r[1] + 1]) for r in ranges] + ) + + if not self.has_non_overlapping_ranges( + split_ranges, + ): # This need not be a strict condition + # However, we keep it now for simplicity. + return None + split_ranges = self.fill_gaps(split_ranges, 0, cumulative_sizes[-1]) + if len(split_sections) == len(split_ranges): # Simplification not possible + return None + counters[backend]["scmerge_split_sections_removed"] = len(split_sections) - len( + split_ranges + ) + return split_ranges + + def has_non_overlapping_ranges(self, ranges: list[_Range]) -> bool: + for range_, next_range in itertools.pairwise(ranges): + if range_[1] > next_range[0]: + return False + return True + + def fill_gaps(self, ranges: list[_Range], min_: int, max_: int) -> list[_Range]: + cur = min_ + filled_ranges = [] + for a, b in ranges: + if cur < a: + filled_ranges.append((cur, a)) + filled_ranges.append((a, b)) + cur = b + if filled_ranges[-1][1] < max_: + filled_ranges.append((filled_ranges[-1][1], max_)) + return filled_ranges + + def get_transform_params( + self, + split_node: torch.fx.Node, + next_users: list[torch.fx.Node], + user_inputs_list: list[list[torch.fx.Node | _Range]], + ) -> list[list[_TransformParam]] | None: + """ + Figure out what transforms are needed for each input to each cat node. + + We replace a split node with an unflatten followed by a movedim + """ + split_dim = _get_dim(split_node) + split_sections = split_node.args[1] + transform_params_list: list[list[_TransformParam]] = [] + + for user_node, user_inputs in zip(next_users, user_inputs_list): + if user_node.target not in (torch.cat, torch.stack): + transform_params_list.append([]) + continue + + cat_dim = get_arg_value(user_node, 1, "dim") + transform_params: list[_TransformParam] = [] + for user_input in user_inputs: + if split_dim == cat_dim and user_node.target is torch.cat: + # No transform needed + transform_params.append((None, None, None, None)) + elif isinstance(user_input, tuple): # Split being simplified + # Verify equal split + subset_split_sections = split_sections[ # type: ignore[index] + user_input[0] : user_input[1] + + 1 # type: ignore[index] + ] + # All sections should be equal + if len(OrderedSet(subset_split_sections)) != 1: # type: ignore[arg-type] + return None + + num_splits = len(subset_split_sections) # type: ignore[arg-type] + unflatten_params = (split_dim, (num_splits, -1)) + movedim_params = ( + (split_dim, cat_dim) if split_dim != cat_dim else None + ) + transform_params.append( + (unflatten_params, movedim_params, None, None) + ) + elif ( + user_node.target is torch.stack or split_dim != cat_dim + ): # We need to unsqueeze inputs not coming through split + transform_params.append((None, None, (cat_dim,), None)) + else: # Non-split inputs + transform_params.append((None, None, None, None)) + transform_params_list.append(transform_params) + return transform_params_list + + def replace_split( + self, + graph: torch.fx.Graph, + split_node: torch.fx.Node, + split_sections: list[int], + user_inputs_list: list[list[torch.fx.Node | _Range]], + split_ranges: list[_Range], + ) -> list[list[torch.fx.Node]]: + """ + Replace the split node. It can either remove the split node if len(split_ranges) == 1, or simplify it + into a split with lesser sections if len(split_ranges) > 1. + + Returns the new `user_inputs_list`, with tuples replaced with new getitems from the newer split node. + """ + split_input = split_node.args[0] + split_dim = _get_dim(split_node) + if len(split_ranges) == 1: # We can completely eliminate the split node + split_items = [split_input] + else: + with graph.inserting_after(split_node): + new_split = graph.call_function( + torch.split, + args=( + split_input, + [r[1] - r[0] for r in split_ranges], + ), + kwargs={"dim": split_dim}, + ) + if is_node_meta_valid(split_input): # type: ignore[arg-type, union-attr] + new_split.meta["example_value"] = torch.split( + split_input.meta["example_value"], # type: ignore[union-attr] + [r[1] - r[0] for r in split_ranges], + dim=split_dim, + ) + counters[backend]["scmerge_split_added"] += 1 + split_items = [] + with graph.inserting_after(new_split): + for i in range(len(split_ranges)): + getitem = graph.call_function(operator.getitem, args=(new_split, i)) + if is_node_meta_valid(new_split): + getitem.meta["example_value"] = new_split.meta["example_value"][ + i + ] + split_items.append(getitem) + # Now assign the right getitem to the right input + cumulative_sizes = [0] + torch.cumsum(torch.tensor(split_sections), 0).tolist() + new_user_inputs_list = [] + for user_inputs in user_inputs_list: + new_user_inputs = [] + for user_input in user_inputs: + if isinstance(user_input, tuple): + # Find the correct new getitem (present in split_items) + new_user_inputs.append( + # pyrefly: ignore [bad-argument-type] + split_items[ + split_ranges.index( + ( + cumulative_sizes[user_input[0]], + cumulative_sizes[user_input[1] + 1], + ) + ) + ] + ) + else: + new_user_inputs.append(user_input) + new_user_inputs_list.append(new_user_inputs) + return new_user_inputs_list # type: ignore[return-value] + + def replace_cat( + self, + graph: torch.fx.Graph, + split_node: torch.fx.Node, + next_users: list[torch.fx.Node], + user_inputs_list_new, + transform_params_list: list[list[_TransformParam]], + ): + split_dim = _get_dim(split_node) + split_users = split_node.users.keys() + new_cats = [] + for user_node, user_inputs_new, transform_params in zip( + next_users, user_inputs_list_new, transform_params_list + ): + if user_node.target not in (torch.cat, torch.stack): + # Change the args and kwargs of non-cat/stack nodes. Replace old getitems (belonging to + # the original split node) with the newer getitems + next_cat_input = 0 + for input_node in user_node.all_input_nodes: + if input_node in split_users: + user_node.replace_input_with( + input_node, user_inputs_new[next_cat_input] + ) + next_cat_input += 1 + continue + + # Handle cat/stack user nodes + cat_dim = get_arg_value(user_node, 1, "dim") + user_inputs_new_transformed, user_inputs_new_transformed_meta = [], [] + # For `unsqueeze` transform, we will combine consecutive inputs with the same unsqueeze params, and stack them + to_stack, to_stack_meta = [], [] + stack_dim = None + with graph.inserting_before(user_node): + for user_input_new, transform_param in zip( + user_inputs_new, transform_params + ): + # pyrefly: ignore [bad-argument-type] + if not is_node_meta_valid(user_input_new): + log.debug("example value absent for node: %s", user_input_new) + return + # Apply transforms + ( + unflatten_params, + movedim_params, + unsqueeze_params, + flatten_params, + ) = transform_param + if unsqueeze_params and ( + stack_dim is None or stack_dim == unsqueeze_params[0] + ): + to_stack.append(user_input_new) + # pyrefly: ignore [missing-attribute] + to_stack_meta.append(user_input_new.meta["example_value"]) + stack_dim = unsqueeze_params[0] + continue + elif to_stack: + stacked_input = graph.call_function( + torch.stack, args=(to_stack,), kwargs={"dim": stack_dim} + ) + stacked_input.meta["example_value"] = torch.stack( # type: ignore[arg-type] + to_stack_meta, + dim=stack_dim, # type: ignore[arg-type] + ) + to_stack, to_stack_meta = [], [] + stack_dim = None + user_inputs_new_transformed.append(stacked_input) + user_inputs_new_transformed_meta.append( + stacked_input.meta["example_value"] + ) + if unsqueeze_params: + to_stack.append(user_input_new) + stack_dim = unsqueeze_params[0] + # pyrefly: ignore [missing-attribute] + to_stack_meta.append(user_input_new.meta["example_value"]) + continue + + if unflatten_params: + # pyrefly: ignore [missing-attribute] + user_input_new_meta = user_input_new.meta["example_value"] + user_input_new = graph.call_function( + torch.unflatten, args=(user_input_new, *unflatten_params) + ) + user_input_new.meta["example_value"] = torch.unflatten( # type: ignore[arg-type] + user_input_new_meta, # type: ignore[arg-type] + *unflatten_params, # type: ignore[arg-type] + ) + if movedim_params: + # pyrefly: ignore [missing-attribute] + user_input_new_meta = user_input_new.meta["example_value"] + user_input_new = graph.call_function( + torch.movedim, args=(user_input_new, *movedim_params) + ) + user_input_new.meta["example_value"] = torch.movedim( # type: ignore[arg-type] + user_input_new_meta, # type: ignore[arg-type] + *movedim_params, # type: ignore[arg-type] + ) + if flatten_params: + # pyrefly: ignore [missing-attribute] + user_input_new_meta = user_input_new.meta["example_value"] + user_input_new = graph.call_function( + torch.flatten, args=(user_input_new, *flatten_params) + ) + user_input_new.meta["example_value"] = torch.flatten( # type: ignore[arg-type] + user_input_new_meta, + *flatten_params, # type: ignore[arg-type] + ) + user_inputs_new_transformed.append(user_input_new) + user_inputs_new_transformed_meta.append( + # pyrefly: ignore [missing-attribute] + user_input_new.meta["example_value"] + ) + if to_stack: + stacked_input = graph.call_function( + torch.stack, args=(to_stack,), kwargs={"dim": stack_dim} + ) + stacked_input.meta["example_value"] = torch.stack( # type: ignore[arg-type] + to_stack_meta, + dim=stack_dim, # type: ignore[arg-type] + ) + user_inputs_new_transformed.append(stacked_input) + user_inputs_new_transformed_meta.append( + stacked_input.meta["example_value"] + ) + + with graph.inserting_after(user_node): + if len(user_inputs_new_transformed) > 1: + new_cat_node = graph.call_function( + torch.cat, + args=(user_inputs_new_transformed,), + kwargs={"dim": cat_dim}, + ) + new_cat_node.meta["example_value"] = torch.cat( + user_inputs_new_transformed_meta, + dim=cat_dim, + ) + counters[backend]["scmerge_cat_added"] += 1 + else: + new_cat_node = user_inputs_new_transformed[-1] + new_cat_node.meta["example_value"] = ( + user_inputs_new_transformed_meta[-1] + ) + + if ( + user_node.target is torch.cat + and split_dim != cat_dim + and split_node.target is torch.split + ): + with graph.inserting_after(new_cat_node): + new_cat_node_meta = new_cat_node.meta["example_value"] + new_cat_node = graph.call_function( + torch.flatten, args=(new_cat_node, cat_dim, cat_dim + 1) + ) + new_cat_node.meta["example_value"] = torch.flatten( + new_cat_node_meta, + cat_dim, + cat_dim + 1, + ) + user_node.replace_all_uses_with(new_cat_node) + new_cats.append(new_cat_node) + + def erase_old_nodes( + self, + graph: torch.fx.Graph, + split_node: torch.fx.Node, + next_users: list[torch.fx.Node], + ): + to_remove = [split_node] + counters[backend]["scmerge_split_removed"] += 1 + to_remove.extend(split_node.users.keys()) + for next_user in next_users: + if next_user.target not in (torch.cat, torch.stack): + continue + counters[backend]["scmerge_cat_removed"] += 1 + to_remove.append(next_user) + for node in reversed(to_remove): + if len(node.users.keys()) == 0: + graph.erase_node(node) + + +class UnbindCatRemover(SplitCatSimplifier): + """ + Helper class to merge Unbind->Cat/Stack. Many of the cases are similar to SplitCatSimplifier. + + Unbind can't be simplified like splits. So, we can only remove the unbind node. Other than this, + other cases like multiple users, additional args, dim mismatch are similar to `SplitCatSimplifier`, + hence we extend that class. + """ + + def remove_unbind( + self, + graph: torch.fx.Graph, + unbind_node: torch.fx.Node, + ): + if not is_node_meta_valid(unbind_node): + return + # we need to check if the getitem indices from unbind are consecutive and all go to the same cat node + # before we do the unbind remove, otherwise it will hit the error when we unbind part of them + getitem_indices = [getitem_node.args[1] for getitem_node in unbind_node.users] + if not is_sorted_and_consecutive(getitem_indices) or len( # type: ignore[arg-type] + getitem_indices + ) != len(unbind_node.meta["example_value"]): + return + num_unbind = len(getitem_indices) + split_sections = [1 for _ in range(num_unbind)] # type: ignore[operator, arg-type] + + super().simplify(graph, unbind_node, split_sections) + + def get_simplified_split_ranges( + self, + split_sections: list[int], + next_users: list[torch.fx.Node], + user_inputs_list: list[list[torch.fx.Node | _Range]], + ) -> list[_Range] | None: + simplified_split_ranges = super().get_simplified_split_ranges( + split_sections, next_users, user_inputs_list + ) + if not simplified_split_ranges or len(simplified_split_ranges) != 1: + return None + return simplified_split_ranges + + def get_transform_params( + self, + split_node: torch.fx.Node, + next_users: list[torch.fx.Node], + user_inputs_list: list[list[torch.fx.Node | _Range]], + ) -> list[list[_TransformParam]] | None: + """ + Figure out what transforms are needed for each input to each cat node. + + Here is the rough transforms we apply: + + x -> unbind -> stack => x -> movedim + + x -> unbind -> cat => x -> movedim -> flatten + + When cat/stack nodes have additional args: + + addn ---| addn -> unsqueeze ---| + x -> unbind -> stack => x -> movedim -> cat + + addn ---| addn ---| + x -> unbind -> cat => x -> movedim -> flatten -> cat + + (Note application of these depends on the dims as well) + + + """ + split_dim = _get_dim(split_node) + transform_params_list: list[list[_TransformParam]] = [] + for user_node, user_inputs in zip(next_users, user_inputs_list): + cat_dim = get_arg_value(user_node, 1, "dim") or 0 + transform_params: list[_TransformParam] = [] + for user_input in user_inputs: + if isinstance(user_input, tuple): + # User input is coming from unbind + movedim_params = ( + (split_dim, cat_dim) if split_dim != cat_dim else None + ) + flatten_params = None + if user_node.target is torch.cat: + flatten_params = (cat_dim, cat_dim + 1) + transform_params.append( + (None, movedim_params, None, flatten_params) + ) + elif ( + user_node.target is torch.stack + ): # We need to unsqueeze inputs not coming through unbind into cat + transform_params.append((None, None, (cat_dim,), None)) + else: # Non-unbind inputs + transform_params.append((None, None, None, None)) + transform_params_list.append(transform_params) + return transform_params_list + + +class GetItem(CallFunction): + def __init__(self, arg, index, _users=1) -> None: + super().__init__(operator.getitem, arg, index, _users=_users) + + def find_anchor_nodes(self, ctx: MatchContext, searched: OrderedSet[torch.fx.Node]): + # We generally match GetItem with arg being an Arg(). So, we never return the anchor + # nodes as the stored node in ctx.pattern_to_node is returned. Here we override find_anchor_nodes + # to not use ctx.pattern_to_node + for pattern in self.flat_args_kwargs[0]: + if isinstance(pattern, PatternExpr): + for other_node in pattern.find_anchor_nodes(ctx, searched): + if not isinstance(other_node, torch.fx.Node): + continue + for node in other_node.users: + if node not in searched: + if self._match_fns(node): + yield node + searched.add(node) + + +@register_graph_pattern( + RepeatedExpr( + CallFunction( + torch.squeeze, + GetItem( + TorchSplit( + KeywordArg("split_input"), + KeywordArg("split_sizes"), + ), + Ignored(), + ), + KeywordArg("dim"), + _users=MULTIPLE, + ), + ), + pass_dict=construct_pattern_matcher_pass("split_cat_pass"), +) +@register_graph_pattern( + RepeatedExpr( + CallFunction( + torch.squeeze, + GetItem( + TorchSplit( + KeywordArg("split_input"), + KeywordArg("split_sizes"), + ), + Ignored(), + ), + dim=KeywordArg("dim"), + _users=MULTIPLE, + ) + ), + pass_dict=construct_pattern_matcher_pass("split_cat_pass"), +) +def merge_split_squeeze( + match: Match, split_input: torch.fx.Node, split_sizes: list[int], dim: int +): + graph = match.graph + split = next(node for node in match.nodes if node.target is torch.split) + if not all(s == 1 for s in split_sizes): + return + if isinstance(dim, Sequence): + return + next_users = find_next_users(split) + if not all(node.target is torch.squeeze for node in next_users): + return + with graph.inserting_before(match.output_node()): + unbind = graph.call_function( + torch.unbind, args=(split_input,), kwargs={"dim": dim} + ) + if is_node_meta_valid(split_input): + unbind.meta["example_value"] = torch.unbind( + split_input.meta["example_value"], dim=dim + ) + for item_index, getitem_node in sorted( + [(getitem_node.args[1], getitem_node) for getitem_node in split.users] + ): + squeeze = next(iter(getitem_node.users.keys())) + new_get_item = graph.call_function( + operator.getitem, args=(unbind, item_index) + ) + squeeze.replace_all_uses_with(new_get_item) + new_get_item.meta.update(squeeze.meta) + graph.erase_node(squeeze) + graph.erase_node(getitem_node) + graph.erase_node(split) + counters[backend]["split_cat_pass"] += 1 + + +getitem_unbind = ListOf( + GetItem( + CallFunction( + torch.unbind, + KeywordArg("unbind_input"), + dim=KeywordArg("dim"), + _users=MULTIPLE, + ), + Ignored(), + _users=MULTIPLE, + ), + partial=True, +) + + +@register_graph_pattern( + CallFunction([torch.stack, torch.cat], getitem_unbind, Ignored(), _users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("unbind_stack_pass"), +) +@register_graph_pattern( + CallFunction( + [torch.stack, torch.cat], getitem_unbind, dim=Ignored(), _users=MULTIPLE + ), + pass_dict=construct_pattern_matcher_pass("unbind_stack_pass"), +) +@register_graph_pattern( + CallFunction( + [torch.stack, torch.cat], tensors=getitem_unbind, dim=Ignored(), _users=MULTIPLE + ), + pass_dict=construct_pattern_matcher_pass("unbind_stack_pass"), +) +def merge_unbind_stack(match: Match, unbind_input: torch.fx.Node, dim: int): + unbind_node = next(node for node in match.nodes if node.target is torch.unbind) + UnbindCatRemover().remove_unbind(match.graph, unbind_node) + + +getitem_split = ListOf( + CallFunction( + operator.getitem, + TorchSplit( + Ignored(), + KeywordArg("split_sections"), + ), + Ignored(), + _users=MULTIPLE, + ), + partial=True, +) + + +reshape_getitem_split = ListOf( + CallFunction( + torch.reshape, + CallFunction( + operator.getitem, + TorchSplit( + Ignored(), + KeywordArg("split_sections"), + ), + Ignored(), + _users=MULTIPLE, + ), + Arg(), + _users=MULTIPLE, + ), + partial=True, +) + + +@register_graph_pattern( + CallFunction( + [torch.stack, torch.cat], + tensors=getitem_split, + dim=Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("split_cat_pass"), +) +@register_graph_pattern( + CallFunction( + [torch.stack, torch.cat], + getitem_split, + dim=Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("split_cat_pass"), +) +@register_graph_pattern( + CallFunction( + [torch.stack, torch.cat], + getitem_split, + Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("split_cat_pass"), +) +def simplify_split_cat(match: Match, split_sections: list[int], dim: int): + if not isinstance(split_sections, (list, tuple)): # Unnormalized split + return + split_node = next(node for node in match.nodes if node.target is torch.split) + # pyrefly: ignore [bad-argument-type] + SplitCatSimplifier().simplify(match.graph, split_node, split_sections) + + +# noqa: W605 +# ############pattern to be optimized is######### + +# split_node(dim=1) +# / \ ... / \ +# getitem getitem getitem getitem -> user=1 +# \ / \ / +# cat (user=mul, dim=1) cat(user=mul, dim=1) +# | \ | \ + +# ################after transformation############# + +# split_node(dim=1) +# / ... \ +# getitem getitem +# | \ | \ + + +def has_same_parent_node(node: torch.fx.Node): + # the input nodes of the node should come from the same parent + prev_node = None + for getitem in node.args[0]: # type: ignore[union-attr] + if getitem.target != operator.getitem: # type: ignore[union-attr] + return False + if prev_node is None: + prev_node = getitem.args[0] # type: ignore[union-attr] + else: + if getitem.args[0] != prev_node: # type: ignore[union-attr] + return False + return True + + +def remove_zeros(split_sections: list[int]): + """ + Remove zeros from the list and get the index mapping dict from getitem + in split node to getitem in new split node + """ + new_split_sections, index_mapping = [], {} + idx = 0 + for i in range(len(split_sections)): + if split_sections[i] > 0: + new_split_sections.append(split_sections[i]) + index_mapping[i] = idx + idx += 1 + + return new_split_sections, index_mapping + + +def is_sorted_and_consecutive(arr: list[int]) -> bool: + # check if the array is sorted + if arr == sorted(arr): + # check if the differences between adjacent elements are all 1 + return all(x[1] - x[0] == 1 for x in itertools.pairwise(arr)) + else: + return False + + +def calculate_fused_tensor_size(split_node: torch.fx.Node, indices: list[int]) -> int: + """ + Calculate the fused tensor size in the indices + """ + fused_tensor_size = 0 + for i in range(len(split_node.args[1])): # type: ignore[arg-type] + if i in indices: + fused_tensor_size += split_node.args[1][i] # type: ignore[operator, assignment, index] + # pyrefly: ignore [bad-return] + return fused_tensor_size + + +@register_graph_pattern( + CallFunction( + torch.cat, + getitem_split, + dim=Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("merge_getitem_cat_pass"), +) +def merge_getitem_cat(match: Match, split_sections: list[int], dim: int): + if not isinstance(split_sections, (list, tuple)): # Unnormalized split + return + graph = match.graph + split_node = next(node for node in match.nodes if node.target is torch.split) + split_input, _split_size, split_dim = _get_split_args_default(split_node) + # if the cat and split have different dims, return + # Find the next users (i.e. users after the getitem) + next_users = find_next_users(split_node) + # 'immutable_list' object does not support mutation. Create a new copy of it + split_sections = list(split_sections) + for cat_user in next_users: + if cat_user.target is torch.cat: + cat_dim = get_arg_value(cat_user, 1, "dim") + # check the all getitems in the cat_user from the same node + # check the input of the cat has all getitem from the split + # check all getitem only has one single user + if ( + split_dim != cat_dim + or not has_same_parent_node(cat_user) + or not all(len(arg.users) == 1 for arg in cat_user.args[0]) # type: ignore[union-attr] + ): + continue + # find the index of getitems to be cated/stacked + # type: ignore[union-attr] + indices = [arg.args[1] for arg in cat_user.args[0]] # type: ignore[union-attr] + # the getitems to be merged must be consecutive, otherwise + # returned sliced tensor could be wrong + if not is_sorted_and_consecutive(indices): # type: ignore[arg-type] + continue + # update the arg of cat user, only keep the first getitem + cat_user.update_arg(0, cat_user.args[0][0]) # type: ignore[index] + # calculate the fused tensor sizes in the indices + fused_tensor_size = 0 + for i in range(len(split_node.args[1])): # type: ignore[arg-type] + if i in indices: + fused_tensor_size += split_node.args[1][i] # type: ignore[operator, assignment, index] + # update the split sections + split_sections[indices[0]] = calculate_fused_tensor_size( # type: ignore[index] + split_node, + indices, # type: ignore[arg-type] + ) + # padding others with zeros to keep the same dict size + for i in indices[1:]: + split_sections[i] = 0 # type: ignore[index] + # remove all unused indexes in the split_node + new_split_sections, index_mapping = remove_zeros(split_sections) + with graph.inserting_after(split_node): + new_split_node = graph.call_function( + torch.split, + args=(split_input, split_sections), + kwargs={"dim": split_dim}, + ) + split_node.replace_all_uses_with(new_split_node) + new_split_node.meta.update(split_node.meta) + # remove all unused getitem nodes + to_remove = [cat_user] + # dictionary keys changed during iteration + new_split_getitem_nodes = list(new_split_node.users.keys()) + for getitem_node in new_split_getitem_nodes: + if getitem_node.args[1] in indices[1:]: + to_remove.append(getitem_node) + # update meta data of getitem + elif getitem_node.args[1] == indices[0]: + cat_user.replace_all_uses_with(getitem_node) + getitem_node.meta.update(cat_user.meta) + else: + # update getitem index for new split node + getitem_node.update_arg(1, index_mapping[getitem_node.args[1]]) + graph.erase_node(split_node) + for getitem_node in to_remove: + graph.erase_node(getitem_node) + # update the split sections of new split node + new_split_node.update_arg(1, new_split_sections) + split_node = new_split_node + split_sections = new_split_sections + + counters[backend]["merge_getitem_cat_pass"] += 1 + + +# ############pattern to be optimized is######### + +# split_node(dim=1) -> user=multiple +# / \ ... / \ +# getitem getitem getitem getitem -> user=multiple +# \ \ / \ +# other_op /cat(user=mul, dim=1) other_op +# | + +# ################after transformation############# + +# split_node(dim=1) -> -> user=multiple +# / \ ... / \ +# getitem getitem getitem getitem -> user=multiple +# \ \ / \ +# other_op + + +@register_graph_pattern( + CallFunction( + torch.cat, + getitem_split, + dim=Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("mutate_cat_pass"), +) +def mutate_cat_node(match: Match, split_sections: list[int], dim: int): + if not isinstance(split_sections, (list, tuple)): # Unnormalized split + return + graph = match.graph + split_node = next(node for node in match.nodes if node.target is torch.split) + _split_input, _split_size, split_dim = _get_split_args_default(split_node) + # if the cat and split have different dims, return + # Find the next users (i.e. users after the getitem) + next_users = find_next_users(split_node) + for cat_user in next_users: + if cat_user.target is torch.cat: + cat_dim = get_arg_value(cat_user, 1, "dim") or 0 + # check that all getitems in the cat_user from the same node + # check the input of the cat has all getitem from the split + if split_dim != cat_dim or not has_same_parent_node(cat_user): + continue + # find the index of getitems to be cat + indices, idx_to_getitem = [], {} + for getitem in cat_user.args[0]: # type: ignore[union-attr] + indices.append(getitem.args[1]) # type: ignore[union-attr] + idx_to_getitem[getitem.args[1]] = getitem # type: ignore[union-attr] + # the getitems to be merged must be consecutive, otherwise + # returned sliced tensor could be wrong + if not is_sorted_and_consecutive(indices): # type: ignore[arg-type] + continue + # case 1: the cat uses all getitems from the split + if len(split_sections) == len(cat_user.args[0]): # type: ignore[arg-type] + # replace the users of the cat node to be the input of the split node + cat_user.replace_all_uses_with(split_node.args[0]) # type: ignore[arg-type] + # remove the cat node + graph.erase_node(cat_user) + counters[backend]["mutate_cat_pass"] += 1 + # case 2: the cat uses some getitems from the split + elif is_node_meta_valid(split_node.args[0]): # type: ignore[arg-type] + # check the split dim, and construct the slice tuple + start_fused_size = calculate_fused_tensor_size( + split_node, + list(range(indices[0])), # type: ignore[arg-type] + ) + end_fused_size = start_fused_size + calculate_fused_tensor_size( + split_node, + indices, # type: ignore[arg-type] + ) + slice_list = [] + for i in range(len(split_node.args[0].meta["example_value"].shape)): # type: ignore[union-attr] + if i != split_dim: + slice_list.append(slice(None, None, None)) + else: + slice_list.append(slice(start_fused_size, end_fused_size, None)) + with graph.inserting_after(split_node): + slice_node = graph.call_function( + operator.getitem, + args=(split_node.args[0], tuple(slice_list)), + ) + cat_user.replace_all_uses_with(slice_node) + slice_node.meta.update(cat_user.meta) + + # remove the cat node + graph.erase_node(cat_user) + counters[backend]["mutate_cat_pass"] += 1 + + +getitem_split_aten = ListOf( + CallFunction( + operator.getitem, + CallFunctionVarArgs([torch.ops.aten.split_with_sizes.default], users=MULTIPLE), + Ignored(), + _users=MULTIPLE, + ), + partial=True, +) + + +@register_graph_pattern( + CallFunctionVarArgs(torch.ops.aten.split.Tensor, users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_aten_pass"), +) +def normalize_split_default_aten(match: Match, *args, **kwargs): + split_node = match.nodes[0] + graph = match.graph + split_input, split_size, split_dim = _get_split_args_default(split_node) + if split_input is None or split_dim is None or split_size is None: + log.debug("couldn't find split args") + return + if not is_node_meta_valid(split_node): + log.debug("val absent for node: %s", split_node) + return + assert isinstance(split_node.meta["val"], (list, tuple)) + split_sections = [t.size()[split_dim] for t in split_node.meta["val"]] + if any(isinstance(section, torch.SymInt) for section in split_sections): + # TODO dynamic_shapes with assume_static_by_default=False fails while AOT Autograd tracing. + return + if split_dim < 0: # Normalize split dim + split_dim += split_input.meta["val"].dim() + # we also need to check the input of the split_node + # primals =torch.randn(4096, 300) + # split = torch.ops.aten.split.Tensor(primals, 320, 1) -> truncate to 300 automatically + # split_2 = torch.ops.aten.split_with_sizes.default(primals, [320], dim = 1) -> runtime error + split_input_size = split_input.meta["val"].shape[split_dim] + split_size = min(split_size, split_input_size) + split_section_list = [split_size] * (len(split_node.meta["val"])) + new_args = (split_input, split_section_list) + new_kwargs = {"dim": split_dim} + if ( + split_node.args == new_args + and split_node.kwargs == new_kwargs + and split_node.op == "call_function" + ): + return + + with graph.inserting_after(split_node): + new_split_node = graph.call_function( + torch.ops.aten.split_with_sizes.default, + args=new_args, + kwargs=new_kwargs, # type: ignore[arg-type] + ) + split_node.replace_all_uses_with(new_split_node) + new_split_node.meta.update(split_node.meta) + graph.erase_node(split_node) + counters[backend]["normalization_aten_pass"] += 1 + + +@register_graph_pattern( + CallFunctionVarArgs(torch.ops.aten.split_with_sizes.default, users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_aten_pass"), +) +def normalize_split_with_size_default_aten(match: Match, *args, **kwargs): + split_node = match.nodes[0] + graph = match.graph + split_input, split_sections, split_dim = _get_split_args_default(split_node) + if split_input is None or split_dim is None or split_sections is None: + log.debug("couldn't find split args") + return + if not is_node_meta_valid(split_node): + log.debug("val absent for node: %s", split_node) + return + if any(isinstance(section, torch.SymInt) for section in split_sections): + # TODO dynamic_shapes with assume_static_by_default=False fails while AOT Autograd tracing. + return + if split_dim < 0: # Normalize split dim + split_dim += split_input.meta["val"].dim() + + new_args = (split_input, split_sections) + new_kwargs = {"dim": split_dim} + if ( + split_node.args == new_args + and split_node.kwargs == new_kwargs + and split_node.op == "call_function" + ): + return + + with graph.inserting_after(split_node): + new_split_node = graph.call_function( + torch.ops.aten.split_with_sizes.default, + args=new_args, + kwargs=new_kwargs, # type: ignore[arg-type] + ) + split_node.replace_all_uses_with(new_split_node) + new_split_node.meta.update(split_node.meta) + graph.erase_node(split_node) + counters[backend]["normalization_aten_pass"] += 1 + + +@register_graph_pattern( + CallFunction( + torch.ops.aten.cat.default, + getitem_split_aten, + dim=Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("split_cat_aten_pass"), +) +def merge_split_cat_aten(match: Match, *args, **kwargs): + graph = match.graph + split_node = match.nodes[0] + threshold_to_cat = torch._inductor.config.post_grad_fusion_options[ + "split_cat_aten_pass" + ].get("threshold_to_cat", 10) + # get the getitem nodes from the split node + getitem_nodes = list(split_node.users.keys()) + for cat_node in list(getitem_nodes[0].users.keys()): + cat_dim = get_arg_value(cat_node, 1, "dim") + cat_inputs = get_arg_value(cat_node, 0, "tensors") + try: + cat_input_len = len(cat_inputs) + except TypeError: + continue + if cat_input_len < threshold_to_cat: + continue + # check split node and cat node has same dim, and all getitem nodes have same parent node + parent_to_indices = defaultdict(list) # type: ignore[var-annotated] + parent_to_getitems = defaultdict(list) # type: ignore[var-annotated] + for cat_input in cat_inputs: + # skip all non-getitem cat input + if cat_input.target != operator.getitem: + continue + current_getitem_parent = cat_input.args[0] + split_dim = get_arg_value(current_getitem_parent, 2, "dim") + if split_dim != cat_dim: + break + getitem_idx = cat_input.args[1] + if ( + current_getitem_parent not in parent_to_indices + ) or getitem_idx != parent_to_indices[current_getitem_parent][-1][-1] + 1: + parent_to_indices[current_getitem_parent].append([getitem_idx]) + parent_to_getitems[current_getitem_parent].append([cat_input]) + else: + parent_to_getitems[current_getitem_parent][-1].append(cat_input) + parent_to_indices[current_getitem_parent][-1].append(getitem_idx) + + cat_inputs_list = list(cat_inputs) + update_cat_arg = [] + # iterate through the indices to construct the slice nodes + for parent, indices in parent_to_indices.items(): + for idx, indice in enumerate(indices): + start, end = indice[0], indice[-1] + split_sections = list(parent.args[1]) + input_of_current_getitem_parent = parent.args[0] + if len(indice) >= threshold_to_cat or len(indice) == len( + split_sections + ): + if len(indice) != len(split_sections): + # get the start and end slicing indices + slice_node = graph.call_function( + torch.ops.aten.slice.Tensor, + args=( + input_of_current_getitem_parent, + split_dim, # type: ignore[possibly-undefined] + sum(split_sections[:start]), + sum(split_sections[: end + 1]), + ), + ) + else: + slice_node = input_of_current_getitem_parent + # find the index in the cat_inputs_list given the getitem node + update_cat_arg.append( + ( + slice_node, + cat_inputs_list.index(parent_to_getitems[parent][idx][0]), + cat_inputs_list.index(parent_to_getitems[parent][idx][-1]), + ) + ) + + result = [] + i = 0 + for slice_tensor, start, end in update_cat_arg: + while i < start: + result.append(cat_inputs_list[i]) + i += 1 + result.append(slice_tensor) + i = end + 1 + while i < len(cat_inputs_list): + result.append(cat_inputs_list[i]) + i += 1 + + cat_node.update_arg(0, result) + for getitem_node in getitem_nodes: + if len(getitem_node.users) == 0: + graph.erase_node(getitem_node) + if len(split_node.users) == 0: + graph.erase_node(split_node) + counters[backend]["split_cat_aten_pass"] += 1 + + +@register_graph_pattern( + CallFunction( + torch.ops.aten.cat.default, + ListOf( + CallFunctionVarArgs(torch.ops.aten.select.int, users=MULTIPLE), + partial=True, + ), + dim=Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("select_cat_aten_pass"), +) +def merge_select_cat_aten(match: Match, *args, **kwargs): + graph = match.graph + node = match.nodes[0] + node_input = get_arg_value(node, 0, "tensors") + # get the select nodes from the node + select_nodes = list(node_input.users.keys()) + for cat_node in list(node.users.keys()): + if cat_node.target is torch.ops.aten.cat.default: + cat_dim = get_arg_value(cat_node, 1, "dim") + cat_inputs = get_arg_value(cat_node, 0, "tensors") + # check all select nodes has same slice dim + if not all( + select_node.args[1] == select_nodes[0].args[1] + for select_node in select_nodes + ): + continue + # We only consider the case where selece slice dim and cat node has same dim + if select_nodes[0].args[1] != cat_dim: + continue + if not is_node_meta_valid(cat_node): + continue + # check the cat node has consecutive indices + indices = [select.args[2] for select in cat_node.args[0]] # type: ignore[union-attr] + if ( + not is_sorted_and_consecutive(indices) # type: ignore[arg-type] + or len(select_nodes) != len(cat_inputs) + ): + continue + # check all the select nodes can be merged to the cat node input + if len(indices) != select_nodes[0].args[0].meta["val"].shape[cat_dim]: # type: ignore[union-attr] + continue + # reshape the node input to be the same shape as the cat node + with graph.inserting_before(node): + view_node = graph.call_function( + torch.ops.aten.view.default, + args=(node_input, cat_node.meta["val"].shape), + ) + # replace the node input with the new node + cat_node.replace_all_uses_with(view_node) + view_node.meta.update(cat_node.meta) + # remove the cat node + graph.erase_node(cat_node) + for select_node in select_nodes: + if len(select_node.users) == 0: + graph.erase_node(select_node) + counters[backend]["select_cat_aten_pass"] += 1 + + +@register_graph_pattern( + CallFunctionVarArgs(torch.ops.aten.cat.default, users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("normalization_aten_pass"), +) +def normalize_cat_default_aten(match: Match, *args, **kwargs): + cat_node = match.nodes[0] + graph = match.graph + tensors = get_arg_value(cat_node, 0, "tensors") + cat_dim = get_arg_value(cat_node, 1, "dim") + if cat_dim is None: + cat_axis = cat_node.kwargs.get("axis") + if cat_axis is not None: + cat_dim = cat_axis + else: + cat_dim = 0 + if tensors is None or cat_dim is None: + log.debug("couldn't find cat args") + return + assert isinstance(tensors, (list, tuple)) + for tensor in itertools.chain([cat_node], tensors): + if "val" not in tensor.meta: + log.debug("val absent for node: %s", tensor) + return + + ndim = cat_node.meta["val"].dim() + + def is_empty_tensor(x: torch.fx.Node) -> bool: + # special case where torch.ops.aten.cat.default supports cat'ing with an empty tensor + x_shape = x.meta["val"].shape + return len(x_shape) == 1 and x_shape[0] == 0 + + assert all(ndim == x.meta["val"].dim() or is_empty_tensor(x) for x in tensors) + + # pyrefly: ignore [unsupported-operation] + if cat_dim < 0: # Normalize cat dim + cat_dim += ndim + + with graph.inserting_after(cat_node): + new_cat_node = graph.call_function( + torch.ops.aten.cat.default, + args=(tensors,), + kwargs={"dim": cat_dim}, + ) + cat_node.replace_all_uses_with(new_cat_node) + new_cat_node.meta.update(cat_node.meta) + graph.erase_node(cat_node) + counters[backend]["normalization_aten_pass"] += 1 + + +@register_graph_pattern( + CallFunction( + torch.ops.aten.cat, + ListOf(CallFunctionVarArgs(torch.ops.aten.unsqueeze)), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("unbind_stack_aten_pass"), +) +def merge_unbind_stack_aten(match: Match, *args, **kwargs): + node = match.nodes[-1] + graph = match.graph + # pyre-fixme[6] + unsqueeze_nodes = list(node.args[0]) # type: ignore[arg-type] + cat_dim = get_arg_value(node, 1, "dim") + # check the unsqueeze nodes come from the select nodes + if not all( + get_arg_value(unsqueeze_node, 0, "input").target is torch.ops.aten.select + for unsqueeze_node in unsqueeze_nodes + ): + return + select_nodes = [ + get_arg_value(unsqueeze_node, 0, "input") for unsqueeze_node in unsqueeze_nodes + ] + parent_of_select_node = get_arg_value(select_nodes[0], 0, "input") + # check the target of select_nodes are the same + if not all( + select_node.target is torch.ops.aten.select for select_node in select_nodes + ): + return + # check the select nodes come from the same parent node + if not all( + get_arg_value(select_node, 0, "input") == parent_of_select_node + for select_node in select_nodes + ): + return + if len(unsqueeze_nodes) != len(select_nodes): + return + # check the select nodes have the same dim + if not all( + get_arg_value(select_node, 1, "dim") == cat_dim for select_node in select_nodes + ): + return + # check the select nodes have consecutive indices starting from 0 + if get_arg_value(select_nodes[0], 2, "index") != 0 or not is_sorted_and_consecutive( + [get_arg_value(select_node, 2, "index") for select_node in select_nodes] + ): + return + # check the users of parent of select node only from unsqueeze nodes that go to the cat node + # we simply check the number of users of the parent of select node + if len(parent_of_select_node.users.keys()) != len(node.args[0]): # type: ignore[arg-type] + return + node.replace_all_uses_with(parent_of_select_node) + graph.erase_node(node) + for unsqueeze_node in unsqueeze_nodes: + graph.erase_node(unsqueeze_node) + for select_node in select_nodes: + if len(select_node.users) == 0: + graph.erase_node(select_node) + counters[backend]["unbind_stack_aten_pass"] += 1 + + +def divide_into_consecutive_sublists(indices: list[int]) -> list[list[int]]: + n = len(indices) + if n <= 1: + return [indices] + + # Initialize the list of sublists + sublists = [] + + # Iterate over the indices + i = 0 + while i < n: + # Initialize the current sublist + sublist = [indices[i]] + + # Iterate over the remaining indices + j = i + 1 + while j < n and indices[j] == indices[j - 1] + 1: + # Add the next index to the current sublist + sublist.append(indices[j]) + j += 1 + + # Add the current sublist to the list of sublists + sublists.append(sublist) + # Move to the next index + i = j + + return sublists + + +def update_args_from_split_getitem( + graph: torch.fx.Graph, + node: torch.fx.Node, + getitem_indices: list[int], + parents_seen: list[torch.fx.Node], + new_cat_args: list[torch.fx.Node], + new_cat_args_meta: list[torch.fx.Node], + idx_to_getitems: dict[int, torch.fx.Node], + threshold_to_cat: int = 2, +): + split_input, split_size, split_dim = _get_split_args_default(parents_seen[-1]) + # case 1: the number of getitems is the same as the split size, eliminate the split + if len(split_size) == len(getitem_indices) and is_sorted_and_consecutive( + getitem_indices + ): + # we can merge the getitems from the previous parent + new_cat_args.append(split_input) + new_cat_args_meta.append(split_input.meta["example_value"]) + else: + if len(getitem_indices) > 0: + # case 2: the number of getitems is smaller than the split size but larger than the threshold, and + # the indices of getitems are not all consecutive, we need to divide the indices into multiple groups + geitem_indices_sublist = divide_into_consecutive_sublists(getitem_indices) + for sublist in geitem_indices_sublist: + if len(sublist) >= threshold_to_cat: + # case 2: the number of getitems is smaller than the split size but larger than the threshold + # we need to slice the input of parent + start_fused_size = sum(split_size[: sublist[0]]) + end_fused_size = sum(split_size[: sublist[-1] + 1]) + slice_list = [] + for i in range(len(split_input.meta["example_value"].shape)): # type: ignore[union-attr] + if i != split_dim: + slice_list.append(slice(None, None, None)) + else: + slice_list.append( + slice(start_fused_size, end_fused_size, None) + ) + with graph.inserting_after(node): + slice_node = graph.call_function( + operator.getitem, + args=(split_input, tuple(slice_list)), + ) + slice_node.meta["example_value"] = split_input.meta[ + "example_value" + ][tuple(slice_list)] + new_cat_args.append(slice_node) + new_cat_args_meta.append(slice_node.meta["example_value"]) + else: + # case 3: the number of getitems is smaller than the threshold, no merge is done + # get the getitems based on the indexes + for i in sublist: + new_cat_args.append(idx_to_getitems[i]) + new_cat_args_meta.append( + idx_to_getitems[i].meta["example_value"] + ) + + +def reshape_cat_node( + graph: torch.fx.Graph, + cat_node: torch.fx.Node, + unbind_input: torch.fx.Node, + cat_dim: int, + unbind_dim: int, + cat_shape: torch.Size, +) -> torch.fx.Node: + if cat_dim != unbind_dim: + # construct the permute node args, which has the same shape as the slice node + # then it has the same dim as the unbind_input, i.e., shape of cat + 1 + with graph.inserting_after(cat_node): + permute_list = list(range(len(cat_shape) + 1)) + permute_list[unbind_dim], permute_list[cat_dim] = ( + permute_list[cat_dim], + permute_list[unbind_dim], + ) + permute_node = graph.call_function( + torch.permute, + args=(unbind_input, permute_list), + ) + permute_node.meta["example_value"] = torch.permute( + unbind_input.meta["example_value"], permute_list + ) # type: ignore[arg-type] + else: + permute_node = unbind_input + with graph.inserting_after(permute_node): + reshape_node = graph.call_function( + torch.reshape, args=(permute_node, tuple(cat_shape)) + ) + reshape_node.meta["example_value"] = torch.reshape( + permute_node.meta["example_value"], tuple(cat_shape) + ) # type: ignore[arg-type] + return reshape_node + + +def update_args_from_unbind_getitem( + graph: torch.fx.Graph, + node: torch.fx.Node, # cat or stack node + getitem_indices: list[int], + parents_seen: list[torch.fx.Node], + new_cat_args: list[torch.fx.Node], + new_cat_args_meta: list[torch.fx.Node], + idx_to_getitems: dict[int, torch.fx.Node], + threshold_to_cat: int = 2, +): + unbind_input = get_arg_value(parents_seen[-1], 0, "input") # split or unbind input + unbind_dim = get_arg_value(parents_seen[-1], 1, "dim") # split or unbind dim + cat_dim = get_arg_value(node, 1, "dim") # cat or stack dim + # case 1: the number of getitems is the same as the split size, eliminate the split + size = list(unbind_input.meta["example_value"].shape)[unbind_dim] + if size == len(getitem_indices): + cat_shape = torch.cat( + [idx_to_getitems[i].meta["example_value"] for i in getitem_indices], + dim=cat_dim, + ).shape + # we can merge the getitems from the previous parent + reshape_node = reshape_cat_node( + graph, node, unbind_input, cat_dim, unbind_dim, cat_shape + ) + new_cat_args.append(reshape_node) + new_cat_args_meta.append(reshape_node.meta["example_value"]) + elif len(getitem_indices) >= threshold_to_cat and is_sorted_and_consecutive( + getitem_indices + ): + # case 2: the number of getitems is smaller than the split size but larger than the threshold + # we need to slice the input of parent + cat_shape = torch.cat( + [idx_to_getitems[i].meta["example_value"] for i in getitem_indices], + dim=cat_dim, + ).shape + slice_list = [] + for i in range(len(cat_shape) + 1): + if i != unbind_dim: + slice_list.append(slice(None, None, None)) # start, end, step + else: + slice_list.append( + slice(getitem_indices[0], getitem_indices[-1] + 1, None) + ) + with graph.inserting_after(node): + slice_node = graph.call_function( + operator.getitem, + args=(unbind_input, tuple(slice_list)), + ) + slice_node.meta["example_value"] = torch.narrow( + unbind_input.meta["example_value"], + unbind_dim, + getitem_indices[0], + getitem_indices[-1] - getitem_indices[0] + 1, + ) + reshape_node = reshape_cat_node( + graph, node, slice_node, cat_dim, unbind_dim, cat_shape + ) + new_cat_args.append(reshape_node) + new_cat_args_meta.append(reshape_node.meta["example_value"]) + else: + # case 3: the number of getitems is smaller than the threshold, no merge is done + # get the getitems based on the indexes + for i in getitem_indices: + new_cat_args.append(idx_to_getitems[i]) + new_cat_args_meta.append(idx_to_getitems[i].meta["example_value"]) + + +def construct_cat_args( + graph: torch.fx.Graph, + cat_or_stack_node: torch.fx.Node, + inputs: list[torch.fx.Node], + split_or_unbind_node: torch.fx.Node, + threshold_to_cat: int = 2, + run_update_func: Callable = update_args_from_split_getitem, # type: ignore[type-arg] +) -> tuple[list[torch.fx.Node], list[torch.Tensor]]: + new_cat_args, parents_seen, getitem_indices, idx_to_getitems = [], [], [], {} # type: ignore[var-annotated] + new_cat_args_meta = [] # type: ignore[var-annotated] + for input in inputs: + if input.target != operator.getitem: + # update the last arg based on getitem_indices and parents_seens + if len(parents_seen) > 0: + run_update_func( # type: ignore[arg-type, union-attr] + graph, + cat_or_stack_node, + getitem_indices, + parents_seen, + new_cat_args, + new_cat_args_meta, + idx_to_getitems, # type: ignore[arg-type, union-attr] + threshold_to_cat, + ) + new_cat_args.append(input) + new_cat_args_meta.append(input.meta["example_value"]) + # reset the indices array + getitem_indices, idx_to_getitems = [], {} + else: + # get the parent node of the getitem input + parent, idx = input.args[0], input.args[1] # type: ignore[union-attr] + if parent.target != split_or_unbind_node.target: # type: ignore[union-attr] + new_cat_args.append(input) + new_cat_args_meta.append(input.meta["example_value"]) + continue + # cannot use parents_seen to check since the first item could be non getitem node + if len(parents_seen) == 0: + parents_seen.append(parent) + idx_to_getitems[idx] = input + getitem_indices.append(idx) + # case: we only have one getitem input, and it is in the last position + if input == inputs[-1]: + new_cat_args.append(input) + new_cat_args_meta.append(input.meta["example_value"]) + continue + # if it is the last input in the tensors, we also check if it can be optimized + if parent != parents_seen[-1] or input == inputs[-1]: + if input == inputs[-1]: + getitem_indices.append(idx) + idx_to_getitems[idx] = input + run_update_func( # type: ignore[arg-type, union-attr] + graph, + cat_or_stack_node, + getitem_indices, + parents_seen, + new_cat_args, + new_cat_args_meta, + idx_to_getitems, # type: ignore[arg-type, union-attr] + threshold_to_cat, + ) + # reset the indices array for the next parent + # remember to add the last element since it is the first + # item in this round of parent + # add the parent to the list of seen parents + parents_seen.append(parent) + getitem_indices, idx_to_getitems = [idx], {idx: input} + else: + getitem_indices.append(idx) + idx_to_getitems[idx] = input + return new_cat_args, new_cat_args_meta + + +def remove_split_unbind_children(graph: torch.fx.Graph, inputs: list[torch.fx.Node]): + nodes = OrderedSet[Any]() + for input in inputs: + if input.target is operator.getitem: + nodes.add(input.args[0]) # type: ignore[union-attr] + if len(input.users.keys()) == 0: + graph.erase_node(input) + # check the split node to remove if it has no users + for node in nodes: + if len(node.users.keys()) == 0: # type: ignore[union-attr] + graph.erase_node(node) # type: ignore[arg-type] + + +# ############pattern to be optimized is######### + +# split_node(dim=1) -> user=multiple +# / \ ... / \ +# other inputs getitem getitem getitem -> user=multiple +# \ / \ +# cat(user=mul, dim=1) other_op +# | + +# ################after transformation############# + +# split_node(dim=1) other inputs -> -> user=multiple +# / \ +# cat (user=mul, dim=1, split_node) + + +@register_graph_pattern( + CallFunction( + torch.cat, + getitem_split, + dim=Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("split_cat_to_slices_pass"), +) +def split_cat_to_slices(match: Match, split_sections: list[int], dim: int): + if not isinstance(split_sections, (list, tuple)): # Unnormalized split + return + split_nodes = [node for node in match.nodes if node.target is torch.split] + if split_nodes: + split_node = next(node for node in split_nodes) + else: + # Handle the case where there are no nodes with a target of torch.split + return + split_dim = get_arg_value(split_node, 2, "dim") or 0 + graph = match.graph + threshold_to_cat = torch._inductor.config.pre_grad_fusion_options[ + "split_cat_to_slices_pass" + ].get("threshold_to_cat", 10) + # get the cat_node and check its inputs and meta data + next_users = find_next_users(split_node) + for cat_node in next_users: + if cat_node.target != torch.cat or not is_node_meta_valid(cat_node): + continue + cat_inputs = get_arg_value(cat_node, 0, "tensors") # type: ignore[union-attr] + new_cat_args, _ = construct_cat_args( + graph, + cat_node, + cat_inputs, + split_node, + threshold_to_cat, + update_args_from_split_getitem, + ) + # At least one node would be in the returned new_cat_args + # case 1: if new cat args has length 1, we can remove the cat node + if len(new_cat_args) == 1: + cat_node.replace_all_uses_with(new_cat_args[0]) + # remove inputs of cat_node if they have no users + cat_inputs = cat_node.args[0] # type: ignore[union-attr] + graph.erase_node(cat_node) + remove_split_unbind_children(graph, cat_inputs) # type: ignore[arg-type] + counters[backend]["split_cat_to_slices_pass"] += 1 + continue + if len(new_cat_args) > 1 and len(new_cat_args) < len(cat_inputs): + new_args = (new_cat_args,) + with graph.inserting_after(cat_node): + new_cat_node = graph.call_function( + torch.cat, + args=new_args, + # split and cat have the same dim + kwargs={"dim": split_dim}, + ) + cat_node.replace_all_uses_with(new_cat_node) + new_cat_node.meta.update(cat_node.meta) + # remove the cat node + graph.erase_node(cat_node) + remove_split_unbind_children(graph, cat_inputs) + counters[backend]["split_cat_to_slices_pass"] += 1 + + +# ############pattern to be optimized is######### + +# unbind(dim=0) -> user=multiple +# / \ ... / \ +# getitem getitem getitem getitem -> user=multiple +# \ / \ +# cat(user=mul, dim=1) other_op +# | + +# ################after transformation############# + +# input_of_unbind +# | \ +# slice +# | +# view +# | + + +@register_graph_pattern( + CallFunction( + torch.cat, + getitem_unbind, + dim=Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("unbind_cat_to_view_pass"), +) +def unbind_cat_to_view(match: Match, unbind_input: torch.fx.Node, dim: int): + unbind_node = next(node for node in match.nodes if node.target is torch.unbind) + graph = match.graph + # get the cat_node and check its inputs and meta data + next_users = find_next_users(unbind_node) + threshold_to_cat = torch._inductor.config.pre_grad_fusion_options[ + "unbind_cat_to_view_pass" + ].get("threshold_to_cat", 10) + # get the cat_node and check its inputs and meta data + for cat_node in next_users: + if cat_node.target != torch.cat or not is_node_meta_valid(cat_node): + continue + inputs = get_arg_value(cat_node, 0, "tensors") # type: ignore[union-attr] + new_cat_args, new_cat_args_meta = construct_cat_args( + graph, + cat_node, + inputs, + unbind_node, + threshold_to_cat, + update_args_from_unbind_getitem, + ) + # get the view shape + # At least one node would be in the returned new_cat_args + # case 1: only one node in the new cat args, don't need to cat + if len(new_cat_args) == 1: + cat_node.replace_all_uses_with(new_cat_args[0]) + # remove inputs of cat_node if they have no users + cat_inputs = cat_node.args[0] # type: ignore[union-attr] + graph.erase_node(cat_node) + remove_split_unbind_children(graph, cat_inputs) # type: ignore[arg-type] + counters[backend]["unbind_cat_to_view_pass"] += 1 + continue + if len(new_cat_args) > 1 and len(new_cat_args) < len(inputs): + # get the view shape + cat_dim = get_arg_value(cat_node, 1, "dim") + with graph.inserting_after(cat_node): + new_cat_node = graph.call_function( + torch.cat, + args=(new_cat_args,), + kwargs={"dim": cat_dim}, + ) + new_cat_node.meta["example_value"] = torch.cat( + new_cat_args_meta, dim=cat_dim + ) # type: ignore[arg-type] + cat_node.replace_all_uses_with(new_cat_node) + new_cat_node.meta.update(cat_node.meta) + # remove inputs of cat_node if they have no users + cat_inputs = cat_node.args[0] # type: ignore[union-attr] + graph.erase_node(cat_node) + remove_split_unbind_children(graph, cat_inputs) # type: ignore[arg-type] + counters[backend]["unbind_cat_to_view_pass"] += 1 + + +def reshape_cat_node_to_stack( + graph: torch.fx.Graph, + cat_node: torch.fx.Node, + stack_node: torch.fx.Node, + split_or_unbind_dim: int, +) -> None: + # reshape the cat node to the stack node shape + stack_shape = stack_node.meta["example_value"].shape + stack_dim = _get_dim(stack_node) + if stack_dim != split_or_unbind_dim: + # case 1: the stack dim is not the same as the split dim + # we need to reshape the split input before we do the reshape + reshape_list = list(stack_shape) + reshape_list[stack_dim], reshape_list[split_or_unbind_dim] = ( + reshape_list[split_or_unbind_dim], + reshape_list[stack_dim], + ) + reshape_node = graph.call_function( + torch.reshape, + args=(cat_node, tuple(reshape_list)), + ) + reshape_node.meta["example_value"] = torch.reshape( + cat_node.meta["example_value"], + tuple(reshape_list), # pyrefly: ignore [bad-argument-type] + ) + permute_list = list(range(len(stack_shape))) + permute_list[stack_dim], permute_list[split_or_unbind_dim] = ( + permute_list[split_or_unbind_dim], + permute_list[stack_dim], + ) + permute_node = graph.call_function( + torch.permute, + args=(reshape_node, permute_list), + ) + permute_node.meta["example_value"] = torch.permute( + reshape_node.meta["example_value"], permute_list + ) + else: + # case 2: the stack dim is the same as the split dim + # we can directly reshape the split input + permute_node = cat_node + reshape_node = graph.call_function( + torch.Tensor.view, + args=(permute_node, *stack_shape), # type: ignore[arg-type] + ) + stack_node.replace_all_uses_with(reshape_node) + reshape_node.meta.update(stack_node.meta) + stack_inputs = stack_node.args[0] # type: ignore[union-attr] + # remove stack node + graph.erase_node(stack_node) + # check the input of stack node, and remove nodes that have no users + remove_split_unbind_children(graph, stack_inputs) # type: ignore[arg-type] + + +def convert_reshape_cat_arg_to_stack( + graph: torch.fx.Graph, + cat_node: torch.fx.Node, + stack_node: torch.fx.Node, + stack_node_shape: torch.Size, + stack_dim: int, + split_dim: int, +) -> torch.fx.Node: + # reshape the cat node to the stack node shape + cat_shape = cat_node.meta["example_value"].shape + if stack_dim != split_dim: + permute_list = list(range(len(cat_shape))) + permute_list[stack_dim], permute_list[split_dim] = ( + permute_list[split_dim], + permute_list[stack_dim], + ) + permute_node = graph.call_function( + torch.permute, + args=(cat_node, permute_list), + ) + permute_node.meta["example_value"] = torch.permute( + cat_node.meta["example_value"], permute_list + ) + else: + permute_node = cat_node + reshape_node = graph.call_function( + torch.Tensor.view, + args=(permute_node, tuple(stack_node_shape)), # type: ignore[arg-type] + ) + reshape_node.meta["example_value"] = torch.Tensor.view( + permute_node.meta["example_value"], + tuple(stack_node_shape), # type: ignore[arg-type] + ) + return reshape_node + + +# ############pattern to be optimized is######### +# | | +# split split (dim=1) +# / \ / \ +# getitem ... getitem other ops +# \ | / / +# stack(user=mul, dim=1 or 2) -> can be different dim +# | + +# ################after transformation############# + +# / \ ... / \ +# getitem getitem getitem getitem -> user=multiple +# \ / +# cat(user=mul, dim=1) cat_other_opts +# \ / +# cat +# | +# view +# | + + +@register_graph_pattern( + CallFunction( + torch.stack, + getitem_split, + dim=Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("split_stack_to_cats_pass"), +) +def split_stack_to_cats(match: Match, split_sections: list[int], dim: int): + if not isinstance(split_sections, (list, tuple)): # Unnormalized split + return + split_node = next(node for node in match.nodes if node.target is torch.split) + split_dim = get_arg_value(split_node, 2, "dim") or 0 + graph = match.graph + threshold_to_cat = torch._inductor.config.pre_grad_fusion_options[ + "split_stack_to_cats_pass" + ].get("threshold_to_cat", 10) + # get the stack_node and check its inputs and meta data + next_users = find_next_users(split_node) + for stack_node in next_users: + if stack_node.target != torch.stack or not is_node_meta_valid(stack_node): + continue + inputs = get_arg_value(stack_node, 0, "tensors") # type: ignore[union-attr] + new_cat_args, new_cat_args_meta = construct_cat_args( + graph, + stack_node, + inputs, + split_node, + threshold_to_cat, + update_args_from_split_getitem, + ) + # At least one node would be in the returned new_cat_args + # case 1: only one node in the new cat args, don't need to cat + if len(new_cat_args) == 1: + reshape_cat_node_to_stack(graph, new_cat_args[0], stack_node, split_dim) + counters[backend]["split_stack_to_cats_pass"] += 1 + continue + if len(new_cat_args) > 1 and len(new_cat_args) < len(inputs): + with graph.inserting_after(stack_node): + cat_node = graph.call_function( + torch.cat, + args=(new_cat_args,), + kwargs={"dim": split_dim}, + ) + cat_node.meta["example_value"] = torch.cat( # type: ignore[arg-type] + new_cat_args_meta, dim=split_dim + ) + reshape_cat_node_to_stack(graph, cat_node, stack_node, split_dim) + counters[backend]["split_stack_to_cats_pass"] += 1 + + +# ############pattern to be optimized is######### + +# unbind(dim=1) -> user=multiple +# \ ... / \ +# others getitem getitem getitem -> user=multiple +# \ \ / \ +# stack(user=mul, dim=1) other_op +# | + +# ################after transformation############# + +# input_of_unbind +# | \ +# slice +# | +# view others +# | / +# stack +# | + + +@register_graph_pattern( + CallFunction( + torch.stack, + getitem_unbind, + dim=Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("unbind_stack_to_slices_pass"), +) +def unbind_stack_to_slices(match: Match, unbind_input: torch.fx.Node, dim: int): + unbind_node = next(node for node in match.nodes if node.target is torch.unbind) + graph = match.graph + # get the cat_node and check its inputs and meta data + next_users = find_next_users(unbind_node) + threshold_to_cat = torch._inductor.config.pre_grad_fusion_options[ + "unbind_stack_to_slices_pass" + ].get("threshold_to_cat", 10) + # get the cat_node and check its inputs and meta data + for stack_node in next_users: + if stack_node.target != torch.stack or not is_node_meta_valid(stack_node): + continue + inputs = get_arg_value(stack_node, 0, "tensors") # type: ignore[union-attr] + new_cat_args, new_cat_args_meta = construct_cat_args( + graph, + stack_node, + inputs, + unbind_node, + threshold_to_cat, + update_args_from_unbind_getitem, + ) + unbind_dim = get_arg_value(unbind_node, 1, "dim") or 0 + # At least one node would be in the returned new_cat_args + # case 1: only one node in the new cat args, don't need to cat + if len(new_cat_args) == 1: + reshape_cat_node_to_stack(graph, new_cat_args[0], stack_node, unbind_dim) + counters[backend]["unbind_stack_to_slices_pass"] += 1 + continue + if len(new_cat_args) > 1 and len(new_cat_args) < len(inputs): + # get the view shape + cat_dim = get_arg_value(stack_node, 1, "dim") + with graph.inserting_after(stack_node): + new_cat_node = graph.call_function( + torch.cat, + args=(new_cat_args,), + kwargs={"dim": cat_dim}, + ) + new_cat_node.meta["example_value"] = torch.cat( + new_cat_args_meta, dim=cat_dim + ) + reshape_cat_node_to_stack(graph, new_cat_node, stack_node, unbind_dim) + counters[backend]["unbind_stack_to_slices_pass"] += 1 + + +# ############pattern to be optimized is######### +# input +# | +# split(dim=1) -> user=multiple +# \ \ +# others getitem getitem +# \ \ / +# reshape reshape reshape other_op +# \ \ / / +# stack(user=mul, dim=0) +# | + +# ################after transformation############# +# input +# | +# permute +# | +# reshape others +# | / +# cat (dim=0) +# | + + +def get_view_shape_list(cat_arg: torch.fx.Node, stack_dim: int) -> list[int]: + # cat_arg must be the split input + view_shape_list = [] + for user in cat_arg.users: + if user.target is torch.split: + for getitem in user.users: + if getitem.target is operator.getitem: + reshape_user = [ + user for user in getitem.users if user.target is torch.reshape + ] + if len(reshape_user) > 0: + view_shape_list = list( + reshape_user[0] + .meta["example_value"] + .unsqueeze(stack_dim) + .shape + ) + view_shape_list[stack_dim] = -1 + return view_shape_list + return view_shape_list + + +@register_graph_pattern( + CallFunction( + torch.stack, + reshape_getitem_split, + dim=Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("move_reshape_out_of_split_stack_pass"), +) +def move_reshape_out_of_split_stack(match: Match, *args, **kwargs): + split_node = next(node for node in match.nodes if node.target is torch.split) + split_dim = _get_dim(split_node) + split_users = list(split_node.users.keys()) + stack_nodes = [node for node in match.nodes if node.target is torch.stack] + graph = match.graph + threshold_to_cat = torch._inductor.config.pre_grad_fusion_options[ + "move_reshape_out_of_split_stack_pass" + ].get("threshold_to_cat", 10) + for stack_node in stack_nodes: + if not is_node_meta_valid(stack_node): + log.debug("example value absent for node: %s", stack_node) + continue + stack_dim = _get_dim(stack_node) + stack_inputs = get_arg_value(stack_node, 0, "tensors") # type: ignore[union-attr] + inputs = [] + for stack_input in stack_inputs: + if stack_input.target != torch.reshape: + inputs.append(stack_input) + else: + inputs.append(stack_input.args[0]) # type: ignore[union-attr] + new_cat_args, _new_cat_args_meta = construct_cat_args( + graph, + stack_node, + inputs, + split_node, + threshold_to_cat, + update_args_from_split_getitem, + ) + # At least one node would be in the returned new_cat_args + # case 1: only one node in the new cat args, don't need to cat + if len(new_cat_args) == 1: + reshape_node = convert_reshape_cat_arg_to_stack( + graph, + new_cat_args[0], + stack_node, + stack_node.meta["example_value"].shape, + stack_dim, + split_dim, + ) + stack_node.replace_all_uses_with(reshape_node) + # remove stack node + graph.erase_node(stack_node) + # check the input of stack node, and remove nodes that have no users + remove_split_unbind_children(graph, stack_inputs) # type: ignore[arg-type] + remove_split_unbind_children(graph, split_users) # type: ignore[arg-type] + counters[backend]["move_reshape_out_of_split_stack_pass"] += 1 + continue + if len(new_cat_args) > 1 and len(new_cat_args) < len(inputs): + # decompose the cat args into multiple stack nodes, i.e., we stack + # all the nodes exist in the stack inputs and reshape the rest followed by a cat + stack_node_input, stack_node_input_meta, cat_inputs = [], [], [] # type: ignore[var-annotated] + for cat_arg in new_cat_args: + if cat_arg not in stack_inputs: + if len(stack_node_input) > 0: + with graph.inserting_after(stack_node): + decomposed_stack_node = graph.call_function( + torch.stack, + args=(stack_node_input,), + kwargs={"dim": stack_dim}, + ) + decomposed_stack_node.meta["example_value"] = torch.stack( + stack_node_input_meta, dim=stack_dim + ) + cat_inputs.append(decomposed_stack_node) + # cat_arg must be the split input + view_shape_list = get_view_shape_list(cat_arg, stack_dim) + stack_node_shape = torch.reshape( + cat_arg.meta["example_value"], tuple(view_shape_list) + ).shape # type: ignore[union-attr] + cat_inputs.append( + convert_reshape_cat_arg_to_stack( + graph, + cat_arg, + stack_node, + stack_node_shape, + stack_dim, + split_dim, + ) + ) + stack_node_input, stack_node_input_meta = [], [] + else: + stack_node_input.append(cat_arg) + stack_node_input_meta.append(cat_arg.meta["example_value"]) + + if len(stack_node_input) > 0: + with graph.inserting_after(stack_node): + decomposed_stack_node = graph.call_function( + torch.stack, + args=(stack_node_input,), + kwargs={"dim": stack_dim}, + ) + decomposed_stack_node.meta["example_value"] = torch.stack( + stack_node_input_meta, dim=stack_dim + ) + cat_inputs.append(decomposed_stack_node) + + with graph.inserting_after(stack_node): + cat_node = graph.call_function( + torch.cat, + args=(cat_inputs,), + kwargs={"dim": stack_dim}, + ) + stack_node.replace_all_uses_with(cat_node) + cat_node.meta.update(stack_node.meta) + graph.erase_node(stack_node) + remove_split_unbind_children(graph, stack_inputs) # type: ignore[arg-type] + remove_split_unbind_children(graph, split_users) # type: ignore[arg-type] + counters[backend]["move_reshape_out_of_split_stack_pass"] += 1 + + +view_getitem_split_aten = ListOf( + CallFunction( + [torch.ops.aten.reshape.default], + CallFunction( + operator.getitem, + CallFunctionVarArgs( + torch.ops.aten.split_with_sizes.default, users=MULTIPLE + ), + Ignored(), + _users=MULTIPLE, + ), + Arg(), + _users=MULTIPLE, + ), + partial=True, +) + + +@register_graph_pattern( + CallFunction( + torch.ops.aten.cat.default, + view_getitem_split_aten, + dim=Ignored(), + _users=MULTIPLE, + ), + pass_dict=construct_pattern_matcher_pass("move_view_after_cat_aten_pass"), +) +def move_view_after_cat(match: Match, *args, **kwargs): + split_node = next( + node + for node in match.nodes + if node.target is torch.ops.aten.split_with_sizes.default + ) + split_input, split_section, split_dim = _get_split_args_default(split_node) + split_users = list(split_node.users.keys()) + getitem_indices = [ + getitem.args[1] for getitem in split_users if getitem.target is operator.getitem + ] + if not is_sorted_and_consecutive(getitem_indices): # type: ignore[arg-type] + return + cat_nodes = [ + node for node in match.nodes if node.target is torch.ops.aten.cat.default + ] + graph = match.graph + for cat_node in cat_nodes: + if not is_node_meta_valid(cat_node): + log.debug("example value absent for node: %s", cat_node) + continue + cat_dim = _get_dim(cat_node) + cat_inputs = get_arg_value(cat_node, 0, "tensors") # type: ignore[union-attr] + # we only consider the following special case + if len(cat_inputs) != len(split_section): + continue + # check if the cat inputs are all the view nodes + if not all( + view_node.target is torch.ops.aten.reshape.default + for view_node in cat_inputs + ): + continue + # check if the view nodes are all from getitem nodes + if not all( + view_node.args[0].target is operator.getitem for view_node in cat_inputs + ): + continue + view_indices = [view.args[0].args[1] for view in cat_inputs] + if not is_sorted_and_consecutive(view_indices): # type: ignore[arg-type] + continue + if cat_dim != split_dim: + # construct permute node + permute_list = list(range(len(cat_node.meta["val"].shape) + 1)) + permute_list[split_dim], permute_list[cat_dim] = ( + permute_list[cat_dim], + permute_list[split_dim], + ) + permute_node = graph.call_function( + torch.ops.aten.permute.default, + args=(split_input, permute_list), + ) + else: + permute_node = split_input + + with graph.inserting_before(cat_node): + view_node = graph.call_function( + torch.ops.aten.reshape.default, + args=(permute_node, list(cat_node.meta["val"].shape)), + ) + cat_node.replace_all_uses_with(view_node) + view_node.meta.update(cat_node.meta) + graph.erase_node(cat_node) + counters[backend]["move_view_after_cat_aten_pass"] += 1 + + +def match_einsum_strings(s: str) -> bool: + """ + This function takes a string s as input, where s is in the format "3 letter string, + 4 letter string -> 3 letter string". + It checks if the strings match the rule and returns True if they do, False otherwise. + + The rule is: + - The three strings have the same first two characters. + - The first two strings have the same third character. + - The second and third strings have the same last character. + """ + + # Split the input string into parts + parts = s.replace("->", ",").split(",") + + # Strip leading/trailing whitespaces from each part + parts = [part.strip() for part in parts] + + # Check if we have exactly three parts + if len(parts) != 3: + return False + + # Extract the strings + s1, s2, s3 = parts + + # Check if the strings have the correct lengths + if len(s1) != 3 or len(s2) != 4 or len(s3) != 3: + return False + + # Check the rule + return s1[:2] == s2[:2] == s3[:2] and s1[2] == s2[2] and s2[3] == s3[2] + + +@register_graph_pattern( + CallFunctionVarArgs(torch.functional.einsum, users=MULTIPLE), + pass_dict=construct_pattern_matcher_pass("einsum_to_pointwise_pass"), +) +def replace_einsum_to_pointwise(match: Match, *args, **kwargs): + def repl(input, weights): + return (input.unsqueeze(-1) * weights).sum(-2) + + def should_replace_einsum(einsum_node) -> bool: + equation = get_arg_value(einsum_node, 0) + users = einsum_node.users.keys() + # for now, we only consider the case of two operands + return ( + len(einsum_node.args) == 3 + and is_node_meta_valid(input) + and is_node_meta_valid(weights) + and any( + user.target == "add" or user.target is operator.add for user in users + ) + and match_einsum_strings(equation) + ) + + einsum_node = match.nodes[0] + input, weights = get_arg_value(einsum_node, 1), get_arg_value(einsum_node, 2) + if should_replace_einsum(einsum_node): + # pyrefly: ignore [bad-argument-type] + match.replace_by_example(repl, [input, weights]) + counters[backend]["einsum_to_pointwise_pass"] += 1 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/__init__.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..9668f1b6c6e1d07c9a2744ab3894929826f39429 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/__init__.py @@ -0,0 +1 @@ +from . import flex, mm, mm_common, mm_plus_mm diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/bmm.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/bmm.py new file mode 100644 index 0000000000000000000000000000000000000000..a155d35b5d059154e20cb8a1e88e361098e8d4c2 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/bmm.py @@ -0,0 +1,343 @@ +# mypy: allow-untyped-defs +import logging +from typing import TYPE_CHECKING, Union + +import torch +from torch._dynamo.utils import counters +from torch._inductor.codegen.rocm.ck_universal_gemm_template import CKGemmTemplate + +from .. import config as inductor_config, ir, lowering as L +from ..kernel_inputs import MMKernelInputs +from ..lowering import lowerings, make_pointwise, make_reduction, transform_args +from ..select_algorithm import ( + autotune_select_algorithm, + ExternKernelChoice, + SymbolicGridFn, + TritonTemplate, +) +from ..utils import ( + _use_cutlass_for_op, + use_aten_gemm_kernels, + use_ck_gemm_template, + use_cpp_bmm_template, + use_cutlass_template, + use_triton_template, +) +from ..virtualized import ops, V +from .mm_common import ( + _is_static_problem, + is_batch_stride_largest_or_zero, + mm_args, + use_native_matmul, +) + + +if TYPE_CHECKING: + from ..ir import ChoiceCaller + from ..select_algorithm import KernelTemplate + +log = logging.getLogger(__name__) +aten = torch.ops.aten + + +@SymbolicGridFn +def bmm_grid(b, m, n, meta, *, cdiv): + return (cdiv(m, meta["BLOCK_M"]) * cdiv(n, meta["BLOCK_N"]), b, 1) + + +bmm_template = TritonTemplate( + name="bmm", + grid=bmm_grid, + source=r""" +{{def_kernel("A", "B")}} + M = {{size("A", -2)}} + N = {{size("B", -1)}} + K = {{size("A", -1)}} + + stride_aq = {{stride("A", 0)}} + stride_am = {{stride("A", 1)}} + stride_ak = {{stride("A", 2)}} + + stride_bq = {{stride("B", 0)}} + stride_bk = {{stride("B", 1)}} + stride_bn = {{stride("B", 2)}} + + # based on triton.ops.matmul + pid = tl.program_id(0).to(INDEX_DTYPE) + grid_m = (M + BLOCK_M - 1) // BLOCK_M + grid_n = (N + BLOCK_N - 1) // BLOCK_N + + # re-order program ID for better L2 performance + width = GROUP_M * grid_n + group_id = pid // width + group_size = min(grid_m - group_id * GROUP_M, GROUP_M) + pid_m = group_id * GROUP_M + (pid % group_size) + pid_n = (pid % width) // (group_size) + tl.assume(pid_m >= 0) + tl.assume(pid_n >= 0) + + rm = pid_m * BLOCK_M + tl.arange(0, BLOCK_M) + rn = pid_n * BLOCK_N + tl.arange(0, BLOCK_N) + if (stride_am == 1 and stride_ak == M) or (stride_am == K and stride_ak == 1): + ram = tl.max_contiguous(tl.multiple_of(rm % M, BLOCK_M), BLOCK_M) + else: + ram = rm % M + if (stride_bk == 1 and stride_bn == K) or (stride_bk == N and stride_bn == 1): + rbn = tl.max_contiguous(tl.multiple_of(rn % N, BLOCK_N), BLOCK_N) + else: + rbn = rn % N + + rk = tl.arange(0, BLOCK_K) + + idx_q = tl.program_id(1).to(INDEX_DTYPE) # batch dimension for BMM + A = A + (ram[:, None] * stride_am + rk[None, :] * stride_ak + idx_q*stride_aq) + B = B + (rk[:, None] * stride_bk + rbn[None, :] * stride_bn + idx_q*stride_bq) + + acc = tl.zeros((BLOCK_M, BLOCK_N), dtype=ACC_TYPE) + for k in range(K, 0, -BLOCK_K): + if EVEN_K: + a = tl.load(A) + b = tl.load(B) + else: + a = tl.load(A, mask=rk[None, :] < k, other=0.) + b = tl.load(B, mask=rk[:, None] < k, other=0.) + acc += tl.dot(a, b, allow_tf32=ALLOW_TF32) + A += BLOCK_K * stride_ak + B += BLOCK_K * stride_bk + + # rematerialize rm and rn to save registers + rm = pid_m * BLOCK_M + tl.arange(0, BLOCK_M) + rn = pid_n * BLOCK_N + tl.arange(0, BLOCK_N) + idx_q = tl.program_id(1).to(INDEX_DTYPE) # batch dimension for BMM + idx_m = rm[:, None] + idx_n = rn[None, :] + mask = (idx_m < M) & (idx_n < N) + + # inductor generates a suffix + {{store_output(("idx_q", "idx_m", "idx_n"), "acc", "mask", val_shape=("BLOCK_M", "BLOCK_N"))}} +""", + cache_codegen_enabled_for_template=True, +) + +aten_bmm = ExternKernelChoice(torch.bmm, "at::bmm_out", op_overload=aten.bmm.out) +aten_bmm_dtype = ExternKernelChoice( + torch.bmm, + "at::_bmm_out_dtype_cuda", + name="bmm_dtype", + op_overload=aten.bmm.dtype_out, +) +aten_baddbmm = ExternKernelChoice( + torch.baddbmm, "at::baddbmm_out", op_overload=aten.baddbmm.out +) + + +@L.register_lowering(aten.bmm) +def tuned_bmm(mat1, mat2, out_dtype=None, *, layout=None): + """ + Lowering for autotuning aten.bmm with different backends (Aten, Triton, CUTLASS, etc.) + """ + if all(x.get_device().type == "cpu" for x in [mat1, mat2]): + # decompose to small ops when memory bound + if mat1.get_size()[1] == 1 or mat2.get_size()[2] == 1: + mat1 = L.unsqueeze(mat1, -1) + mat2 = L.unsqueeze(mat2, 1) + return L.sum_(L.mul(mat1, mat2), axis=2) + + def is_valid_to_require_contiguous(t): + if not ir.is_storage_and_layout(t): + return True + _, layout = ir.as_storage_and_layout(t, freeze=False) + return isinstance(layout, ir.FlexibleLayout) + + def is_preferred_layout_as_bmm_input(sizes, strides): + # contiguous on one of the last two dims + return ( + strides[-1] == 1 and (sizes[-2] == 1 or strides[-2] >= sizes[-1]) + ) or (strides[-2] == 1 and (sizes[-1] == 1 or strides[-1] >= sizes[-2])) + + # Make the input of bmm contiguous + # if it is not contiguous on either of the last two dims, + # because bmm cpu implementation would do contiguous() if not. + # This is to avoid additional copies in bmm. + def may_require_contiguous(t, meta_t): + sizes = meta_t.meta["val"].size() + strides = meta_t.meta["val"].stride() + if not is_preferred_layout_as_bmm_input(sizes, strides): + t = ir.ExternKernel.require_contiguous(t) + return t + + if is_valid_to_require_contiguous(mat1): + meta_mat1 = V.graph.current_node.args[0] + mat1 = may_require_contiguous(mat1, meta_mat1) + if is_valid_to_require_contiguous(mat2): + meta_mat2 = V.graph.current_node.args[1] + mat2 = may_require_contiguous(mat2, meta_mat2) + + if use_native_matmul(mat1, mat2): + mat1 = lowerings[aten.unsqueeze](mat1, -1) + mat2 = lowerings[aten.unsqueeze](mat2, 1) + args, kwargs = transform_args( + args=[mat1, mat2], + kwargs={}, + broadcast=True, + type_promotion_kind=None, + convert_input_to_bool=False, + ) # Handles broadcasting the arguments + + if inductor_config.triton.codegen_upcast_to_fp32 and mat1.dtype in [ + torch.float16, + torch.bfloat16, + ]: + + def _to_dtype(x): + return ops.to_dtype(x, mat1.dtype, use_compute_types=False) + + args = [make_pointwise(_to_dtype)(x) for x in args] + + mul_pointwise = make_pointwise(ops.dot)(*args) + dot_reduction = make_reduction("dot")(mul_pointwise, 2) + + return dot_reduction + + # TODO(coconutruben): integrate into MMKernelInputs when all callsites use that + m, n, k, layout, mat1, mat2 = mm_args( + mat1, mat2, layout=layout, out_dtype=out_dtype + ) + name = "bmm" + + # Create MMKernelInputs for BMM at the top + kernel_inputs = MMKernelInputs([mat1, mat2], out_dtype=out_dtype) + + # below is for getting an overview logging info of inductor mms + batch_size = mat1.get_size()[0] # Extract batch dimension + counters["aten_mm_info"][f"aten.bmm_{batch_size}_{m}_{n}_{k}"] += 1 + log.info( + "Tuned aten.bmm: batch=%s, m=%s, n=%s, k=%s, mat1_dtype=%s, mat2_dtype=%s, output_layout=%s", + batch_size, + m, + n, + k, + mat1.get_dtype(), + mat2.get_dtype(), + layout, + ) + + aten_handler: ExternKernelChoice = aten_bmm + aten_extra_kwargs = {} + if out_dtype: + assert mat1.get_device().type == "cuda", "out_dtype is only supported for CUDA" + aten_handler = aten_bmm_dtype + aten_extra_kwargs = {"out_dtype": out_dtype} + + choices: list[ChoiceCaller] = [] + + # Collect all templates for unified call + templates_to_use: list[Union[ExternKernelChoice, KernelTemplate]] = [] + kwarg_overrides = {} + + if use_aten_gemm_kernels(): + templates_to_use.append(aten_handler) + kwarg_overrides[aten_handler.uid] = aten_extra_kwargs + + if use_triton_template(layout, check_max_autotune=False) and ( + out_dtype is None or out_dtype == mat1.get_dtype() + ): + # TODO: add out_dtype support for Triton Template + templates_to_use.append(bmm_template) + + # Single unified call for all templates + choices.extend( + V.choices.get_template_configs( + kernel_inputs, + templates_to_use, + name, + kwarg_overrides=kwarg_overrides, + ) + ) + _, is_nonzero = _is_static_problem(layout) + batch_stride_largest_or_zero = is_batch_stride_largest_or_zero(mat1, mat2, layout) + if ( + batch_stride_largest_or_zero + and is_nonzero + and use_cutlass_template(layout, m, n, k) + and _use_cutlass_for_op(name) + ): + from ..codegen.cuda.gemm_template import CUTLASS3xGemmTemplate + + CUTLASS3xGemmTemplate.add_cutlass_gemm_choices( + choices, layout, kernel_inputs.nodes() + ) # type: ignore[arg-type] + + if use_cpp_bmm_template(layout, mat1, mat2): + from ..codegen.cpp_bmm_template import CppBmmTemplate + + CppBmmTemplate.add_choices( + choices, + layout, + kernel_inputs.nodes(), + ) + + if use_ck_gemm_template(layout, m, n, k): + CKGemmTemplate.add_ck_gemm_choices(choices, layout, kernel_inputs.nodes()) + + return autotune_select_algorithm(name, choices, kernel_inputs.nodes(), layout) + + +@L.register_lowering(aten.baddbmm) +def tuned_baddbmm(inp, mat1, mat2, *, alpha=1, beta=1, layout=None): + """ + Lowering for autotuning aten.mm with different backends (Aten, Triton, CUTLASS, etc.) + """ + if use_native_matmul(mat1, mat2): + if beta == 0: + arg1 = 0 + else: + arg1 = lowerings[aten.mul](beta, inp) + + if alpha == 0: + arg2 = 0 + else: + arg2 = lowerings[aten.mul](alpha, lowerings[aten.bmm](mat1, mat2)) + + return lowerings[aten.add](arg1, arg2) + + # TODO(coconutruben): integrate into MMKernelInputs when all callsites use that + m, n, k, layout, mat1, mat2, inp = mm_args(mat1, mat2, inp, layout=layout) + + # Create MMKernelInputs for BadDBMM at the top + kernel_inputs = MMKernelInputs( + [inp, mat1, mat2], scalars=dict(alpha=alpha, beta=beta) + ) + + # below is for getting an overview logging info of inductor mms + batch_size = mat1.get_size()[0] + counters["aten_mm_info"][f"aten.baddbmm_{batch_size}_{m}_{n}_{k}"] += 1 + log.info( + "Tuned aten.baddbmm: batch_size=%s, m=%s, n=%s, k=%s, mat1_dtype=%s, mat2_dtype=%s, inp=%s, output_layout=%s", + batch_size, + m, + n, + k, + mat1.get_dtype(), + mat2.get_dtype(), + inp.get_dtype(), + layout, + ) + name = "baddbmm" + # options to tune from + choices: list[ChoiceCaller] = [] + + # Collect all templates for unified call + templates_to_use: list[Union[ExternKernelChoice, KernelTemplate]] = [] + if use_aten_gemm_kernels(): + templates_to_use.append(aten_baddbmm) + + if use_triton_template(layout, check_max_autotune=False): + templates_to_use.append(bmm_template) + + # Single unified call for all templates + choices.extend( + V.choices.get_template_configs(kernel_inputs, templates_to_use, name) + ) + + return autotune_select_algorithm(name, choices, kernel_inputs.nodes(), layout) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/conv.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/conv.py new file mode 100644 index 0000000000000000000000000000000000000000..8e5a2aa09d4ea229ebb56ac589f56fc3900ba6ae --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/conv.py @@ -0,0 +1,687 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import logging +from typing import Optional, TYPE_CHECKING, TypedDict + +import torch +from torch._inductor.codegen.rocm.ck_conv_template import CKGroupedConvFwdTemplate + +from .. import config, ir +from ..lowering import ( + add_layout_constraint, + constrain_to_fx_strides, + lowerings as L, + register_lowering, +) +from ..select_algorithm import ( + autotune_select_algorithm, + ExternKernelChoice, + SymbolicGridFn, + TritonTemplate, +) +from ..utils import ( + is_ones, + is_zeros, + pad_listlike, + sympy_product, + use_ck_conv_template, + use_triton_template, +) +from ..virtualized import V + + +if TYPE_CHECKING: + from collections.abc import Sequence + + from ..ir import TensorBox + +log = logging.getLogger(__name__) + + +aten = torch.ops.aten + + +@SymbolicGridFn +def conv2d_grid(n, c, h, w, meta, *, cdiv): + return ( + cdiv(n * h * w, meta["BLOCK_M"]), + cdiv(c, meta["BLOCK_N"]), + meta["GROUPS"], + ) + + +@SymbolicGridFn +def conv3d_grid(n, c, d, h, w, meta, *, cdiv): + return ( + cdiv(n * d * h * w, meta["BLOCK_M"]), + cdiv(c, meta["BLOCK_N"]), + meta["GROUPS"], + ) + + +LOOP_BODY_2D = """ + idx_x_h = i - PADDING_H + idx_y_h * STRIDE_H + idx_x_w = j - PADDING_W + idx_y_w * STRIDE_W + idx_x_c = tl.arange(0, BLOCK_K) + k + + x_ptrs = x_base + ( + (idx_x_h * stride_xh)[:, None] + + (idx_x_w * stride_xw)[:, None] + + (idx_x_c * stride_xc)[None, :] + ) + mask_x = ( + (idx_n < BATCH)[:, None] + & (idx_x_h >= 0)[:, None] + & (idx_x_h < IN_H)[:, None] + & (idx_x_w >= 0)[:, None] + & (idx_x_w < IN_W)[:, None] + & (idx_x_c < GROUP_IN_C)[None, :] + ) + matrix_x = tl.load(x_ptrs, mask=mask_x, other=0.0) + + w_ptrs = w_base + ( + (idx_x_c * stride_wc_in)[:, None] + (i * stride_wh) + (j * stride_ww) + ) + mask_w = (idx_x_c[:, None] < GROUP_IN_C) & (idx_y_c[None, :] < GROUP_OUT_C) + matrix_w = tl.load(w_ptrs, mask=mask_w, other=0.0) + acc += tl.dot(matrix_x, matrix_w, allow_tf32=ALLOW_TF32) +""" + +""" +This is a relatively simple conv implementation that can likely be +improved. Many alternate conv versions can be found here: +https://github.com/pytorch/torchdynamo/pull/971 +""" +conv2d_template = TritonTemplate( + name="convolution2d", + grid=conv2d_grid, + source=r""" +{{def_kernel("X", "W")}} + # Tensor dimensions + BATCH = {{size("X", 0)}} + IN_C = {{size("X", 1)}} + IN_H = {{size("X", 2)}} + IN_W = {{size("X", 3)}} + OUT_C = {{size(None, 1)}} + OUT_H = {{size(None, 2)}} + OUT_W = {{size(None, 3)}} + + # Strides: + stride_xn = {{stride("X", 0)}} + stride_xc = {{stride("X", 1)}} + stride_xh = {{stride("X", 2)}} + stride_xw = {{stride("X", 3)}} + stride_wc_out = {{stride("W", 0)}} + stride_wc_in = {{stride("W", 1)}} + stride_wh = {{stride("W", 2)}} + stride_ww = {{stride("W", 3)}} + + nhw = tl.program_id(0).to(INDEX_DTYPE) * BLOCK_M + tl.arange(0, BLOCK_M) + idx_y_w = nhw % OUT_W + nh = nhw // OUT_W + idx_y_h = nh % OUT_H + idx_n = nh // OUT_H + idx_y_c = tl.program_id(1).to(INDEX_DTYPE) * BLOCK_N + tl.arange(0, BLOCK_N) + +{% if GROUPS == 1 %} + group = 0 + GROUP_IN_C = IN_C + GROUP_OUT_C = OUT_C +{% else %} + group = tl.program_id(2).to(INDEX_DTYPE) + GROUP_IN_C = IN_C // GROUPS + GROUP_OUT_C = OUT_C // GROUPS +{% endif %} + + x_base = X + (group * stride_xc * GROUP_IN_C + idx_n * stride_xn)[:, None] + w_base = ( + W + (group * stride_wc_out * GROUP_OUT_C + idx_y_c * stride_wc_out)[None, :] + ) + + acc = tl.zeros((BLOCK_M, BLOCK_N), dtype=tl.float32) + +{% if UNROLL %} +{% for i in range(KERNEL_H) %} +{% for j in range(KERNEL_W) %} + i = {{i}} + j = {{j}} + for k in range(0, GROUP_IN_C, BLOCK_K): + """ + + LOOP_BODY_2D + + """ +{% endfor %} +{% endfor %} +{% else %} + # Could be simplified, but slightly slower: + # for i in range(KERNEL_H): + # for j in range(KERNEL_W): + # for k in range(0, GROUP_IN_C, BLOCK_K): + BLOCK_K_COUNT = (GROUP_IN_C + BLOCK_K - 1) // BLOCK_K + for ijk in range(KERNEL_H * KERNEL_W * BLOCK_K_COUNT): + k = (ijk % BLOCK_K_COUNT) * BLOCK_K + ij = ijk // BLOCK_K_COUNT + i = ij // KERNEL_W + j = ij % KERNEL_W + """ + + LOOP_BODY_2D + + """ +{% endif %} + + mask = ( + (idx_n < BATCH)[:, None] + & (idx_y_h < OUT_H)[:, None] + & (idx_y_w < OUT_W)[:, None] + & (idx_y_c < GROUP_OUT_C)[None, :] + ) + idx_n = idx_n[:, None] + idx_c = idx_y_c[None, :] + group * GROUP_OUT_C + idx_h = idx_y_h[:, None] + idx_w = idx_y_w[:, None] + + # inductor generates a suffix + {{store_output(("idx_n", "idx_c", "idx_h", "idx_w"), "acc", "mask", val_shape=("BLOCK_M", "BLOCK_N"))}} +""", +) + +LOOP_BODY_3D = """ + idx_x_d = d - PADDING_D + idx_y_d * STRIDE_D + idx_x_h = i - PADDING_H + idx_y_h * STRIDE_H + idx_x_w = j - PADDING_W + idx_y_w * STRIDE_W + idx_x_c = tl.arange(0, BLOCK_K) + k + + x_ptrs = x_base + ( + (idx_x_d * stride_xd)[:, None] + + (idx_x_h * stride_xh)[:, None] + + (idx_x_w * stride_xw)[:, None] + + (idx_x_c * stride_xc)[None, :] + ) + mask_x = ( + (idx_n < BATCH)[:, None] + & (idx_x_d >= 0)[:, None] + & (idx_x_d < IN_D)[:, None] + & (idx_x_h >= 0)[:, None] + & (idx_x_h < IN_H)[:, None] + & (idx_x_w >= 0)[:, None] + & (idx_x_w < IN_W)[:, None] + & (idx_x_c < GROUP_IN_C)[None, :] + ) + matrix_x = tl.load(x_ptrs, mask=mask_x, other=0.0) + + w_ptrs = w_base + ( + (idx_x_c * stride_wc_in)[:, None] + + (d * stride_wd) + (i * stride_wh) + (j * stride_ww) + ) + mask_w = (idx_x_c[:, None] < GROUP_IN_C) & (idx_y_c[None, :] < GROUP_OUT_C) + matrix_w = tl.load(w_ptrs, mask=mask_w, other=0.0) + acc += tl.dot(matrix_x, matrix_w, allow_tf32=ALLOW_TF32) +""" + +conv3d_template = TritonTemplate( + name="convolution3d", + grid=conv3d_grid, + source=r""" +{{def_kernel("X", "W")}} + # Tensor dimensions + BATCH = {{size("X", 0)}} + IN_C = {{size("X", 1)}} + IN_D = {{size("X", 2)}} + IN_H = {{size("X", 3)}} + IN_W = {{size("X", 4)}} + OUT_C = {{size(None, 1)}} + OUT_D = {{size(None, 2)}} + OUT_H = {{size(None, 3)}} + OUT_W = {{size(None, 4)}} + + # Strides: + stride_xn = {{stride("X", 0)}} + stride_xc = {{stride("X", 1)}} + stride_xd = {{stride("X", 2)}} + stride_xh = {{stride("X", 3)}} + stride_xw = {{stride("X", 4)}} + stride_wc_out = {{stride("W", 0)}} + stride_wc_in = {{stride("W", 1)}} + stride_wd = {{stride("W", 2)}} + stride_wh = {{stride("W", 3)}} + stride_ww = {{stride("W", 4)}} + + ndhw = tl.program_id(0).to(INDEX_DTYPE) * BLOCK_M + tl.arange(0, BLOCK_M) + idx_y_w = ndhw % OUT_W + ndh = ndhw // OUT_W + idx_y_h = ndh % OUT_H + nd = ndh // OUT_H + idx_y_d = nd % OUT_D + idx_n = nd // OUT_D + idx_y_c = tl.program_id(1).to(INDEX_DTYPE) * BLOCK_N + tl.arange(0, BLOCK_N) + +{% if GROUPS == 1 %} + group = 0 + GROUP_IN_C = IN_C + GROUP_OUT_C = OUT_C +{% else %} + group = tl.program_id(2).to(INDEX_DTYPE) + GROUP_IN_C = IN_C // GROUPS + GROUP_OUT_C = OUT_C // GROUPS +{% endif %} + + x_base = X + (group * stride_xc * GROUP_IN_C + idx_n * stride_xn)[:, None] + w_base = ( + W + (group * stride_wc_out * GROUP_OUT_C + idx_y_c * stride_wc_out)[None, :] + ) + + acc = tl.zeros((BLOCK_M, BLOCK_N), dtype=tl.float32) + +{% if UNROLL %} +{% for d in range(KERNEL_D) %} +{% for i in range(KERNEL_H) %} +{% for j in range(KERNEL_W) %} + d = {{d}} + i = {{i}} + j = {{j}} + for k in range(0, GROUP_IN_C, BLOCK_K): + """ + + LOOP_BODY_3D + + """ +{% endfor %} +{% endfor %} +{% endfor %} +{% else %} + # Could be simplified, but slightly slower: + # for d in range(KERNEL_D): + # for i in range(KERNEL_H): + # for j in range(KERNEL_W): + # for k in range(0, GROUP_IN_C, BLOCK_K): + BLOCK_K_COUNT = (GROUP_IN_C + BLOCK_K - 1) // BLOCK_K + for dijk in range(KERNEL_D * KERNEL_H * KERNEL_W * BLOCK_K_COUNT): + k = (dijk % BLOCK_K_COUNT) * BLOCK_K + dij = dijk // BLOCK_K_COUNT + j = dij % KERNEL_W + di = dij // KERNEL_W + i = di % KERNEL_H + d = di // KERNEL_H + """ + + LOOP_BODY_3D + + """ +{% endif %} + + mask = ( + (idx_n < BATCH)[:, None] + & (idx_y_d < OUT_D)[:, None] + & (idx_y_h < OUT_H)[:, None] + & (idx_y_w < OUT_W)[:, None] + & (idx_y_c < GROUP_OUT_C)[None, :] + ) + idx_n = idx_n[:, None] + idx_c = idx_y_c[None, :] + group * GROUP_OUT_C + idx_d = idx_y_d[:, None] + idx_h = idx_y_h[:, None] + idx_w = idx_y_w[:, None] + + # inductor generates a suffix + {{store_output(("idx_n", "idx_c", "idx_d", "idx_h", "idx_w"), "acc", "mask", val_shape=("BLOCK_M", "BLOCK_N"))}} +""", +) + +aten_convolution = ExternKernelChoice( + torch.convolution, + "at::convolution", + has_out_variant=False, + op_overload=aten.convolution.default, +) + + +def conv1x1_via_mm(x, w, *, out): + w = torch.squeeze(torch.squeeze(w, -1), -1) + return torch.matmul( + x.permute(0, 2, 3, 1), w.permute(1, 0), out=out.permute(0, 2, 3, 1) + ) + + +aten_conv1x1_via_mm = ExternKernelChoice(conv1x1_via_mm, None) + + +class ConvLayoutParams(TypedDict): + stride: tuple[int, ...] + padding: tuple[int, ...] + dilation: tuple[int, ...] + transposed: bool + output_padding: tuple[int, ...] + groups: int + + +def conv_layout( + x: TensorBox, + weight: TensorBox, + bias: Optional[TensorBox], + stride: Sequence[int], + padding: tuple[int, ...], + dilation: tuple[int, ...], + transposed: bool, + output_padding: tuple[int, ...], + groups: int, +) -> ir.Layout: + """Determine output layout for a convolution""" + with V.graph.fake_mode: + output = torch.ops.aten.convolution( + ir.ir_node_to_tensor(x, guard_shape=True), + ir.ir_node_to_tensor(weight, guard_shape=True), + ir.ir_node_to_tensor(bias, guard_shape=True), + V.graph.sizevars.size_hints(stride), # type: ignore[arg-type] + V.graph.sizevars.size_hints(padding), # type: ignore[arg-type] + V.graph.sizevars.size_hints(dilation), # type: ignore[arg-type] + transposed, + V.graph.sizevars.size_hints(output_padding), # type: ignore[arg-type] + groups, + ) + sizes = ir.convert_shape_to_inductor(output.size()) + stride = ir.convert_shape_to_inductor(output.stride()) # type: ignore[assignment] + + return ir.FixedLayout( + x.get_device_or_error(), + x.get_dtype(), + sizes, + stride, + ) + + +def channels_last_order(rank): + order = list(reversed(range(rank))) + order.insert(1, order.pop(-1)) + return order + + +def convert_1x1_conv_to_mm(x, weight, bias): + # special case for 1x1 convolution, which is actually just a matmul + rank = len(weight.get_size()) + for _ in range(rank - 2): + weight = L[aten.squeeze](weight, dim=-1) + weight = L[aten.permute](weight, [1, 0]) + + x = ir.ExternKernel.require_stride_order(x, channels_last_order(rank)) + x_permute = list(range(rank)) + x_permute.append(x_permute.pop(1)) + x = L[aten.permute](x, x_permute) + *sizes, in_chan = x.get_size() + x = L[aten.reshape](x, [sympy_product(sizes), in_chan]) + if bias is None: + result = L[aten.mm](x, weight) + else: + result = L[aten.addmm](bias, x, weight) + result = L[aten.reshape](result, [*sizes, -1]) + result_permute = list(range(rank)) + result_permute.insert(1, result_permute.pop(-1)) + return L[aten.permute](result, result_permute) + + +@register_lowering(aten.convolution) +def convolution( + x: TensorBox, + weight: TensorBox, + bias: Optional[TensorBox], + stride: Sequence[int], + padding: Sequence[int], + dilation: Sequence[int], + transposed: bool, + output_padding: Sequence[int], + groups: int, +): + stride = tuple(stride) + padding = tuple(padding) + dilation = tuple(dilation) + output_padding = tuple(output_padding) + if not isinstance(groups, int): + groups = V.graph.sizevars.guard_int(groups) + assert isinstance(groups, int) + + # Need use hint for triton template since the template does not + # work with a dynamic shape. + # + # No need to guard_int for dilation and output_padding + # since the template is only used when dilation is 1 and output_padding + # is 0. + stride = tuple(V.graph.sizevars.guard_int_seq(stride)) + padding = tuple(V.graph.sizevars.guard_int_seq(padding)) + + kwargs: ConvLayoutParams = { + "stride": stride, + "padding": padding, + "dilation": dilation, + "transposed": transposed, + "output_padding": output_padding, + "groups": groups, + } + + device_type = ir.get_device_type(x) + + if len(x.get_size()) == len(weight.get_size()) - 1: + # add batch dimension to simplify rest of function + return L[aten.squeeze]( + convolution(L[aten.expand](x, [1, *x.get_size()]), weight, bias, **kwargs), + dim=0, + ) + + out_chan, in_chan, *kernel_shape = V.graph.sizevars.guard_int_seq(weight.get_size()) + + # Always convert conv1D to 2D for Intel GPU. + # Only conv2D can be converted to channel last layout, + # which have much better performance. + if len(x.get_size()) == 3 and len(kernel_shape) == 1 and device_type == "xpu": + kwargs.update( + { + "stride": (1,) + stride, + "padding": (0,) + padding, + "dilation": (1,) + dilation, + "output_padding": (0,) + output_padding, + } + ) + # (N, C, L) -> (N, C, 1, L) + x = L[aten.unsqueeze](x, dim=2) + weight = L[aten.unsqueeze](weight, dim=2) + + return L[aten.squeeze]( + convolution(x, weight, bias, **kwargs), + dim=2, + ) + + ndim = len(kernel_shape) + stride = pad_listlike(stride, ndim) + padding = pad_listlike(padding, ndim) + dilation = pad_listlike(dilation, ndim) + output_padding = pad_listlike(output_padding, ndim) + + def channels_last_conv(): + if V.graph.layout_opt and ndim == 2: + return True + + layout = conv_layout(x, weight, None, **kwargs) + req_stride_order = ir.get_stride_order( + V.graph.sizevars.size_hints(layout.stride) + ) + return req_stride_order == ir.NHWC_STRIDE_ORDER + + autotuning_gemm = config.max_autotune or config.max_autotune_gemm + + if ( + (config.conv_1x1_as_mm or (autotuning_gemm and channels_last_conv())) + and is_ones(kernel_shape) + and is_ones(stride) + and is_zeros(padding) + and is_ones(dilation) + and not transposed + and is_zeros(output_padding) + and groups == 1 + and V.graph.sizevars.statically_known_gt(sympy_product(x.get_size()), 0) + ): + return convert_1x1_conv_to_mm(x, weight, bias) + + if bias is not None and device_type != "cpu": + # peel off the bias, cudnn is slower with it + result = convolution(x, weight, None, **kwargs) + return L[aten.add]( + result, L[aten.view](bias, [result.get_size()[1]] + ndim * [1]) + ) + + x.realize() + weight.realize() + + # ndim can be 1 for convolution in models such as demucs + # TODO: check if it's beneficial to convert Conv1d to Conv2d and then + # apply channels last. + if V.graph.layout_opt and ndim == 2: + V.graph.num_channels_last_conv += 1 + x = ir.ExternKernel.require_channels_last(x) # type: ignore[assignment] + # TODO maybe we can convert weights to channels last just once before + # running the model. + weight = ir.ExternKernel.require_channels_last(weight) # type: ignore[assignment] + layout = conv_layout(x, weight, None, **kwargs) + else: + layout = conv_layout(x, weight, None, **kwargs) + req_stride_order = ir.get_stride_order( + V.graph.sizevars.size_hints(layout.stride) + ) + x = ir.ExternKernel.require_stride_order(x, req_stride_order) # type: ignore[assignment] + weight = ir.ExternKernel.require_stride_order(weight, req_stride_order) # type: ignore[assignment] + + ordered_kwargs_for_cpp_kernel = [ + "stride", + "padding", + "dilation", + "transposed", + "output_padding", + "groups", + ] + if bias is None: + args = [x, weight] + kwargs["bias"] = None # type: ignore[typeddict-unknown-key] + ordered_kwargs_for_cpp_kernel.insert(0, "bias") + else: + args = [x, weight, bias] + bias.realize() + bias.freeze_layout() + V.graph.sizevars.guard_int_seq(bias.get_size()) + + choices = [] + if torch._inductor.utils._use_conv_autotune_backend("ATEN"): + choices = [ + aten_convolution.bind( + args, + layout, + ordered_kwargs_for_cpp_kernel, + **kwargs, + ) + ] + + if ( + torch._inductor.utils._use_conv_autotune_backend("TRITON") + and use_triton_template(layout) + # templates only support these: + and is_ones(dilation) + and not transposed + and is_zeros(output_padding) + # there are some odd models where this check fails (e.g. shufflenet_v2_x1_0) + and V.graph.sizevars.statically_known_equals(in_chan * groups, x.get_size()[1]) # type: ignore[arg-type] + ): + if ( + is_ones(kernel_shape) + and is_ones(stride) + and is_zeros(padding) + and groups == 1 + ): + choices.append(aten_conv1x1_via_mm.bind(args, layout)) + + conv_configs = V.choices.get_conv_configs(device_type) + + dtype_size = x.get_dtype().itemsize + for cfg in conv_configs( + sympy_product([x.get_size()[0], *x.get_size()[2:]]), + out_chan, + in_chan, + dtype_size=dtype_size, + ): + if ndim == 2: + conv2d_template.maybe_append_choice( + choices, + input_nodes=(x, weight), + layout=layout, + KERNEL_H=kernel_shape[0], + KERNEL_W=kernel_shape[1], + STRIDE_H=stride[0], + STRIDE_W=stride[1], + PADDING_H=padding[0], + PADDING_W=padding[1], + GROUPS=groups, + # TODO(jansel): try unroll for bigger kernels once fixed: + # https://github.com/triton-lang/triton/issues/1254 + UNROLL=is_ones(kernel_shape), + ALLOW_TF32=torch.backends.cudnn.allow_tf32, + num_stages=cfg.num_stages, + num_warps=cfg.num_warps, + **cfg.kwargs, + ) + elif ndim == 3: + conv3d_template.maybe_append_choice( + choices, + input_nodes=(x, weight), + layout=layout, + KERNEL_D=kernel_shape[0], + KERNEL_H=kernel_shape[1], + KERNEL_W=kernel_shape[2], + STRIDE_D=stride[0], + STRIDE_H=stride[1], + STRIDE_W=stride[2], + PADDING_D=padding[0], + PADDING_H=padding[1], + PADDING_W=padding[2], + GROUPS=groups, + # TODO(jansel): try unroll for bigger kernels once fixed: + # https://github.com/triton-lang/triton/issues/1254 + UNROLL=is_ones(kernel_shape), + ALLOW_TF32=torch.backends.cudnn.allow_tf32, + num_stages=cfg.num_stages, + num_warps=cfg.num_warps, + **cfg.kwargs, + ) + if use_ck_conv_template(layout): + CKGroupedConvFwdTemplate.add_ck_conv_choices( + choices, + layout, + input_nodes=(x, weight) + ((bias,) if bias is not None else tuple()), + stride=stride, + padding=padding, + dilation=dilation, + groups=groups, + n_spatial_dimensions=ndim, + ) + return autotune_select_algorithm("convolution", choices, args, layout) + + +@register_lowering(aten._convolution) +def _convolution( + x, + weight, + bias, + stride, + padding, + dilation, + transposed, + output_padding, + groups, + benchmark, + deterministic, + cudnn_enabled, + allow_tf32, +): + return convolution( + x, weight, bias, stride, padding, dilation, transposed, output_padding, groups + ) + + +def constrain_conv_to_fx_strides(fx_node, *args, **kwargs): + assert fx_node.target is torch.ops.aten.convolution.default + if V.graph.layout_opt: + return args, kwargs + else: + return constrain_to_fx_strides(fx_node, *args, **kwargs) + + +add_layout_constraint(aten.convolution, constrain_conv_to_fx_strides) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/custom_op.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/custom_op.py new file mode 100644 index 0000000000000000000000000000000000000000..c6a641ce83b17eade82a85cd10962dc377dab7e3 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/custom_op.py @@ -0,0 +1,537 @@ +# Owner(s): ["module: inductor"] + +import functools +import logging +from collections.abc import Callable +from typing import Any, Optional, Union + +import torch +from torch._inductor.codegen.subgraph import SubgraphTemplate +from torch._inductor.ir import Buffer, FixedLayout, ir_node_to_tensor, TensorBox +from torch._inductor.lowering import lowerings, validate_ir +from torch._inductor.select_algorithm import ( + autotune_select_algorithm, + ExternKernelChoice, +) +from torch._inductor.virtualized import V +from torch.utils._ordered_set import OrderedSet + + +log = logging.getLogger(__name__) + + +def _detect_collective_ops(choices: list) -> bool: + """ + Detect if choices contain collective operations. + """ + from torch._inductor.utils import is_collective_op + + for choice in choices: + if not hasattr(choice, "gm") or choice.gm is None: + continue + + for node in choice.gm.graph.nodes: + if node.op == "call_function" and node.target is not None: + op_name = str(node.target) + + if is_collective_op(op_name) or is_collective_op( + f"torch.ops.{op_name}" + ): + return True + + return False + + +class CustomOpConfig: + """Config for custom op autotuning. + + Specifies optional decomposition function with parameter values. + Each config creates exactly one variant. + + Args: + decomposition: Optional functions to autotune. If not provided, default will be used. + **params: Parameters passed to the function + + Examples: + CustomOpConfig(attention_impl, head_dim=32, method='chunked') + CustomOpConfig(head_dim=32, method='chunked') + """ + + def __init__( + self, + decomposition: Optional[Callable[..., Any]] = None, + **params: Any, + ): + if decomposition is not None and not callable(decomposition): + raise TypeError( + f"decomposition must be callable, got {type(decomposition)}" + ) + + self.decomposition = decomposition + self.params = params + + def get_decomposition( + self, default_impl: Optional[Callable[..., Any]] = None + ) -> Callable[..., Any]: + """Return the decomposition function for this config. + When decomposition is not specified, return the default implementation. + """ + if self.decomposition is not None: + return self.decomposition + + if default_impl is not None and callable(default_impl): + return default_impl + + raise TypeError( + "No decomposition specified in config and no default implementation provided. " + "Please provide a decomposition function in CustomOpConfig." + ) + + def __repr__(self) -> str: + decomp_name = self.decomposition.__name__ if self.decomposition else "default" + if self.params: + params_str = ", ".join(f"{k}={v}" for k, v in self.params.items()) + return f"CustomOpConfig({decomp_name}, {params_str})" + return f"CustomOpConfig({decomp_name})" + + +__all__ = [ + "autotune_custom_op", + "register_custom_op_autotuning", + "CustomOpConfig", +] + + +def _extract_tensor_inputs( + args: tuple[Any, ...], kwargs: dict[str, Any] +) -> tuple[list[Any], dict[str, Any]]: + """Extract tensor inputs from mixed args/kwargs. + Separates tensors (for autotuning input_nodes) from non-tensor parameters. + Non-tensor kwargs are later functools.partial'd into decomposition functions. + + Args: + args: Positional arguments (mix of tensors and scalars) + kwargs: Keyword arguments (mix of tensors and scalars) + + Returns: + Tuple of (tensor_inputs_list, non_tensor_kwargs) + """ + tensor_inputs = [] + non_tensor_kwargs = {} + + # Process args and kwargs: separate tensor inputs and non tensor args + for i, arg in enumerate(args): + if isinstance(arg, (TensorBox, Buffer)): + tensor_inputs.append(arg) + else: + # Add non-tensor positional args to kwargs with generated names + non_tensor_kwargs[f"arg_{i}"] = arg + + for key, value in kwargs.items(): + if isinstance(value, (TensorBox, Buffer)): + tensor_inputs.append(value) + else: + non_tensor_kwargs[key] = value + + return tensor_inputs, non_tensor_kwargs + + +def _merge_config_and_runtime_kwargs( + config_params: dict[str, Any], + runtime_kwargs: dict[str, Any], +) -> dict[str, Any]: + """Merge config parameters with runtime kwargs. Runtime kwargs take precedence. + If there are conflicts, log a warning and use runtime value. + + Args: + config_params: Parameters from CustomOpConfig + runtime_kwargs: Runtime non-tensor kwargs from _extract_tensor_inputs + + Returns: + Merged kwargs dictionary with runtime values taking precedence + """ + merged_kwargs = config_params.copy() + + # Check for conflicts and let runtime kwargs dominate + conflicts = OrderedSet(config_params.keys()).intersection(runtime_kwargs.keys()) + + for key in conflicts: + log.warning( + "Parameter '%s' specified both in CustomOpConfig (%s) " + "and at runtime (%s). Using runtime value.", + key, + config_params[key], + runtime_kwargs[key], + ) + + # Runtime kwargs override config params + merged_kwargs.update(runtime_kwargs) + + return merged_kwargs + + +def _adapt_user_input_gen_fns( + inputs: list[Any], + arg_names: list[str], + user_input_gen_fns: dict[str, Callable[[torch.Tensor], torch.Tensor]], +) -> dict[int, Callable[[Any], torch.Tensor]]: + """Convert user input generators from name-based to index-based format. + Inductor autotune's input_gen_fns expects index of arg_names as key. + + Uses V.graph.sizevars.size_hints() to guess best for dynamic shapes. + """ + + name_to_index = {name: i for i, name in enumerate(arg_names)} + index_based_fns = {} + + for name, gen_fn in user_input_gen_fns.items(): + if name in name_to_index: + index_based_fns[name_to_index[name]] = gen_fn + else: + log.warning( + "Unknown argument name '%s' in input_gen_fns. " + "Available argument names: %s", + name, + list(name_to_index.keys()), + ) + + def create_internal_input_gen_fn( + user_function: Callable[[torch.Tensor], torch.Tensor], arg_name: str + ) -> Callable[[Any], torch.Tensor]: + """Create internal input generator that converts IR buffer to user's fake tensor.""" + + def internal_input_gen_fn(ir_buffer: Any) -> torch.Tensor: + fake_tensor = ir_node_to_tensor(ir_buffer) + assert fake_tensor is not None, "ir_node_to_tensor returned None" + return user_function(fake_tensor) + + return internal_input_gen_fn + + return { + i: create_internal_input_gen_fn( + user_gen_fn, arg_names[i] if i < len(arg_names) else f"arg_{i}" + ) + for i, user_gen_fn in index_based_fns.items() + if i < len(inputs) + } + + +def _create_fallback_choice( + name: str, + default_impl: Callable[..., Any], + fake_output: torch.Tensor, + kwargs: dict[str, Any], +) -> ExternKernelChoice: + """Create fallback choice for default implementation.""" + + def fallback_wrapper(*args: Any) -> Any: + return default_impl(*args, **kwargs) + + return ExternKernelChoice( + kernel=fallback_wrapper, + name=f"{name}_fallback_default", + has_out_variant=False, + op_overload=default_impl, + use_fallback_kernel=True, + ) + + +def autotune_custom_op( + name: str, + decompositions: list[Callable[..., Any]], + inputs: list[Any], + non_tensor_args: list[dict[str, Any]], + op_overload: torch._ops.OpOverload, + user_input_gen_fns: Optional[ + dict[str, Callable[[torch.Tensor], torch.Tensor]] + ] = None, +) -> Union[TensorBox, Any]: + """Autotune custom operations by comparing multiple decomposition implementations. + + Currently supports SINGLE OUTPUT custom ops only. + TODO: Add support for multiple output custom ops (tuple/list returns). + + This function generates multiple implementation choices for a custom operation and + uses Inductor's autotuning system to select the best performing variant at runtime. + After selecting the best choice, applies inline fusion if the winning choice has a graph. + + Args: + name: Unique identifier for the autotuning operation + decompositions: List of alternative implementation functions to benchmark + inputs: Input tensor IR nodes from compilation (TensorBox/Buffer objects) + non_tensor_args: List of kwargs dicts, paired with corresponding decompositions arg + op_overload: OpOverload of the custom op, used as fallback implementation + user_input_gen_fns: Optional custom input generators for benchmarking. + Maps input indices to functions that take fake tensors + and return real tensors for performance measurement. + + Returns: + IR node representing the optimized operation result + + Raises: + TypeError: If decompositions is not a list/tuple + RuntimeError: If no inputs or no valid choices generated + """ + if not isinstance(decompositions, (list, tuple)): + raise TypeError( + f"decompositions must be a list or tuple of callables, got {type(decompositions)}" + ) + + if not inputs: + raise RuntimeError(f"Custom op '{name}' requires tensor inputs for autotuning") + + if len(decompositions) != len(non_tensor_args): + raise ValueError( + f"decompositions and non_tensor_args must have same length, " + f"got {len(decompositions)} decompositions and {len(non_tensor_args)} kwargs" + ) + + template = SubgraphTemplate(name=name) + choices = template.generate_custom_op_choices( + name=name, + # pyrefly: ignore [bad-argument-type] + decompositions=decompositions, + input_nodes=list(inputs), + non_tensor_args=non_tensor_args, + ) + + # Add default implementation as fallback + if op_overload and hasattr(op_overload, "_op"): + fallback_name = f"{name}_fallback_default" + from torch._inductor.select_algorithm import extern_kernels + + # Skip if extern_kernel already registered to avoid duplicate registration error + if not hasattr(extern_kernels, fallback_name): + with V.fake_mode: + fake_inputs = [ir_node_to_tensor(inp) for inp in inputs] + fallback_kwargs = non_tensor_args[0] if non_tensor_args else {} + fake_output = op_overload(*fake_inputs, **fallback_kwargs) + + fallback_choice = _create_fallback_choice( + name, op_overload, fake_output, fallback_kwargs + ) + fallback_choice.maybe_append_choice( + choices=choices, + input_nodes=list(inputs), + layout=FixedLayout( + device=fake_output.device, + dtype=fake_output.dtype, + size=fake_output.shape, + stride=fake_output.stride(), + ), + ) + + if not choices: + raise RuntimeError(f"No valid choices generated for {name}") + + # Convert user input generation functions to internal format + input_gen_fns = {} + if user_input_gen_fns: + import inspect + + arg_names = ( + list(inspect.signature(decompositions[0]).parameters.keys()) + if decompositions + else [] + ) + input_gen_fns = _adapt_user_input_gen_fns(inputs, arg_names, user_input_gen_fns) + + is_collective = _detect_collective_ops(choices) + + # Run autotuning and get both result and winning choice + selected_result, winning_choice = autotune_select_algorithm( + name=name, + choices=choices, + input_nodes=list(inputs), + layout=choices[0].layout, + input_gen_fns=input_gen_fns, + return_choice=True, + is_collective=is_collective, + ) + + # Apply inlining for fusion if winning_choice has graph; otherwise return result as-is(default fallback impl) + if winning_choice.gm is not None: + log.debug( + "Inlining winning choice: %s (name=%s)", + getattr(winning_choice, "name", type(winning_choice).__name__), + name, + ) + from torch._inductor.codegen.subgraph import inline_subgraph_to_ir_nodes + + return inline_subgraph_to_ir_nodes(winning_choice.gm, inputs, name) + + log.debug( + "Winning choice does not support inlining: %s (name=%s)", + getattr(winning_choice, "name", type(winning_choice).__name__), + name, + ) + return selected_result + + +def _generate_dynamic_configs( + tensor_inputs: list[Buffer], + config_generator: Callable[[dict[str, torch.Tensor]], list[CustomOpConfig]], + default_impl: Callable[..., Any], + operation_name: str, +) -> list[CustomOpConfig]: + """Generate configs dynamically based on input tensors at lowering time.""" + import inspect + + sig = inspect.signature(default_impl) + param_names = list(sig.parameters.keys()) + + with V.fake_mode: + fake_tensors = [ir_node_to_tensor(inp) for inp in tensor_inputs] + + fake_tensors_dict = dict(zip(param_names, fake_tensors)) + + configs = config_generator(fake_tensors_dict) + + if not isinstance(configs, (list, tuple)): + raise TypeError( + f"config_generator must return a list or tuple of CustomOpConfig, " + f"got {type(configs)}" + ) + if not configs: + raise ValueError(f"config_generator returned empty list for {operation_name}. ") + + return list(configs) + + +def register_custom_op_autotuning( + custom_op: torch._library.custom_ops.CustomOpDef, + configs: Optional[Union[list[CustomOpConfig], list[Callable[..., Any]]]] = None, + config_generator: Optional[ + Callable[[dict[str, torch.Tensor]], list[CustomOpConfig]] + ] = None, + name: Optional[str] = None, + input_gen_fns: Optional[dict[str, Callable[[torch.Tensor], torch.Tensor]]] = None, +) -> None: + """Register custom op for autotuning with custom_op configs where each config + specifies a decomposition implementation function with its parameter values. + + Args: + custom_op: Custom operation (decorated function from @torch.library.custom_op) + configs: List of CustomOpConfig objects for static inputs. Mutually exclusive with config_generator. + config_generator: Dynamic config generator function that takes a dict mapping + parameter names to fake tensors, and returns list[CustomOpConfig] + based on input tensor properties. Mutually exclusive with configs. + name: Operation name (default: "{op_name}_autotuned") + input_gen_fns: Custom input generators for benchmarking + + Examples: + # Static configs + @torch.library.custom_op("mylib::attention", mutates_args=()) + def my_attention(query, key, value, head_dim=32): + ... + + register_custom_op_autotuning( + my_attention, + configs=[ + CustomOpConfig(attention_impl, head_dim=32, method='chunked'), + CustomOpConfig(attention_impl, head_dim=64, method='tiled'), + CustomOpConfig(head_dim=128), # No decomposition specified, use default + ], + input_gen_fns={ + "query": lambda fake: torch.randn_like(fake, device='cuda'), + "key": lambda fake: torch.randn_like(fake, device='cuda'), + "value": lambda fake: torch.randn_like(fake, device='cuda'), + }, + ) + + # Dynamic config generation based on input tensor properties + def generate_k_split_configs(fake_tensors: dict[str, torch.Tensor]) -> list[CustomOpConfig]: + # Access tensor shapes, dtypes, devices, etc. + m, k = fake_tensors["mat1"].shape + _, n = fake_tensors["mat2"].shape + k_splits = ... # compute possible k splits based on tensor properties + return [CustomOpConfig(k_splits=k) for k in k_splits] + + register_custom_op_autotuning( + matmul_decomposeK_op, + config_generator=generate_k_split_configs, + input_gen_fns={...}, + ) + """ + from torch._library.custom_ops import CustomOpDef + + if not isinstance(custom_op, CustomOpDef): + raise TypeError( + f"custom_op must be a CustomOpDef (decorated function from @torch.library.custom_op), " + f"got {type(custom_op)}." + ) + + # Validate configs and config_generator are mutually exclusive + if configs is not None and config_generator is not None: + raise ValueError( + "Cannot specify both 'configs' and 'config_generator'. " + "Use 'config_generator' for shape-dependent configs." + ) + + if configs is None and config_generator is None: + raise ValueError("Must specify either 'configs' or 'config_generator'") + + op_overload = custom_op._opoverload + default_impl = custom_op._init_fn + + # Process and validate static configs at registration time + static_configs = None + if configs is not None: + if not isinstance(configs, (list, tuple)): + raise TypeError(f"configs must be a list or tuple, got {type(configs)}") + + static_configs = [] + for cfg in configs: + if isinstance(cfg, CustomOpConfig): + static_configs.append(cfg) + else: + raise TypeError( + f"Each config must be a CustomOpConfig object, got {type(cfg)}" + ) + + if not static_configs: + raise ValueError("At least one config must be provided") + + if name is None: + name = f"{op_overload._name}_autotuned" + + @functools.wraps(op_overload) + def autotuning_lowering(*args: Any, **kwargs: Any) -> Any: + """Inductor lowering function that replaces custom op calls with autotuned versions.""" + # Extract tensor inputs and non-tensor parameters (runtime kwargs) + tensor_inputs, runtime_kwargs = _extract_tensor_inputs(args, kwargs) + + # Get configs: either generate dynamically or use static configs + if config_generator is not None: + configs_to_use = _generate_dynamic_configs( + tensor_inputs, config_generator, default_impl, name + ) + else: + assert static_configs is not None + configs_to_use = static_configs + + # Prepare decompositions and kwargs for autotuning + decompositions = [] + non_tensor_args = [] + + for cfg in configs_to_use: + decomp = cfg.get_decomposition(default_impl=default_impl) + decompositions.append(decomp) + + # Merge config params with runtime kwargs (runtime takes precedence) + merged_kwargs = _merge_config_and_runtime_kwargs(cfg.params, runtime_kwargs) + non_tensor_args.append(merged_kwargs) + + result = autotune_custom_op( + name=name, + decompositions=decompositions, + inputs=tensor_inputs, + non_tensor_args=non_tensor_args, + op_overload=op_overload, + user_input_gen_fns=input_gen_fns, + ) + + validate_ir(result) + return result + + lowerings[op_overload] = autotuning_lowering diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/mm.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/mm.py new file mode 100644 index 0000000000000000000000000000000000000000..5b57c458f46e62862ea997c5a0fad0d4729d65d5 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/mm.py @@ -0,0 +1,1102 @@ +# mypy: allow-untyped-defs +import functools +import logging +from typing import Any, Optional, Union + +import torch +from torch._dynamo.utils import counters +from torch._inductor.autoheuristic.autoheuristic import AutoHeuristicSelectAlgorithm +from torch._inductor.autoheuristic.autoheuristic_utils import ( + AHContext, + context_add_strides, + context_add_using_tf32, + mm_operations, +) +from torch._inductor.codegen.cpp_gemm_template import CppGemmTemplate +from torch._inductor.remote_gemm_autotune_cache import gen_best_config +from torch._inductor.virtualized import ops, V +from torch.fx.experimental.proxy_tensor import make_fx +from torch.nn.functional import ScalingType # type: ignore[attr-defined] +from torch.torch_version import TorchVersion + +from .. import config as inductor_config, distributed_autotune +from ..codegen.cuda.gemm_template import CUTLASS2xGemmTemplate, CUTLASS3xGemmTemplate +from ..codegen.rocm.ck_tile_universal_gemm_template import CKTileGemmTemplate +from ..codegen.rocm.ck_universal_gemm_template import CKGemmTemplate +from ..codegen.subgraph import SubgraphChoiceCaller, SubgraphTemplate +from ..ir import Buffer, ChoiceCaller, is_triton, Layout +from ..kernel_inputs import MMKernelInputs +from ..lowering import ( + lowerings, + make_pointwise, + make_reduction, + register_lowering, + transform_args, +) +from ..select_algorithm import ( + autotune_select_algorithm, + ExternKernelChoice, + KernelTemplate, + realize_inputs, + TritonTemplate, +) +from ..utils import ( + _use_cutlass_for_op, + ceildiv, + use_aten_gemm_kernels, + use_ck_gemm_template, + use_ck_tile_gemm_template, + use_cpp_gemm_template, + use_cutlass_template, + use_decompose_k_choice, + use_triton_blackwell_tma_template, + use_triton_template, + use_triton_tma_template, +) +from .mm_common import ( + _is_static_problem, + load_kernel_template, + mm_args, + mm_grid, + persistent_mm_grid, + use_native_matmul, +) + + +try: + import triton + + triton_version = TorchVersion(triton.__version__) + has_triton = True +except ImportError: + triton_version = TorchVersion("0.0.0") + has_triton = False + +log = logging.getLogger(__name__) +aten = torch.ops.aten +prims = torch.ops.prims + +# We define each template kernel in a separate file which is the name of the input to load_kernel_template +# (e.g. triton_mm for templates/triton_mm.py.jinja). +# If you are adding a new template, please follow that pattern and add a new file with your implementation in the templates folder. +mm_template = TritonTemplate( + name="mm", + grid=mm_grid, + source=load_kernel_template("triton_mm") + if (torch.version.hip is None) or triton_version >= "3.3.0" + # FIXME: To get around rocm failures like https://github.com/pytorch/pytorch/actions/runs/13123783322/job/36617154943 + # The only difference between the two templates is M >= BLOCK_M and N >= BLOCK_N checking. + # See more details in https://github.com/pytorch/pytorch/pull/146293 + else load_kernel_template("triton_mm_rocm"), + cache_codegen_enabled_for_template=True, + prologue_loads_all_inputs=True, +) + +persistent_tma_mm_template = TritonTemplate( + name="mm_persistent_tma", + grid=persistent_mm_grid, + source=load_kernel_template("triton_persistent_tma_mm"), +) + + +scaled_mm_device_tma_epilogue_scaling_template = TritonTemplate( + name="scaled_mm_device_tma_epilogue_scaling", + grid=persistent_mm_grid, + source=load_kernel_template("triton_epilogue_scaled_mm"), +) + + +scaled_mm_device_tma_main_loop_scaling_template = TritonTemplate( + name="scaled_mm_device_tma_main_loop_scaling", + grid=persistent_mm_grid, + source=load_kernel_template("triton_main_loop_scaled_mm"), +) + +blackwell_ws_persistent_device_tma_mm_template = TritonTemplate( + name="blackwell_ws_persistent_device_tma", + grid=persistent_mm_grid, + source=load_kernel_template("triton_blackwell_ws_persistent_device_tma_mm"), +) + + +# prevent duplication registration of extern functions +@functools.cache +def lazy_register_extern_choice(fn): + return ExternKernelChoice(fn) + + +aten_mm = ExternKernelChoice(torch.mm, "at::mm_out", op_overload=aten.mm.out) +aten_mm_dtype = ExternKernelChoice( + torch.mm, + "at::_mm_dtype_out_cuda", + name="mm_dtype", + op_overload=aten.mm.dtype_out, +) + +aten_addmm = ExternKernelChoice( + torch.addmm, "at::addmm_out", op_overload=aten.addmm.out +) + +aten__int_mm = ExternKernelChoice( + torch._int_mm, "at::_int_mm_out", op_overload=aten._int_mm.out +) + +aten__sparse_semi_structured_mm = ExternKernelChoice( + torch._sparse_semi_structured_mm, + "at::_sparse_semi_structured_mm", + has_out_variant=False, + op_overload=aten._sparse_semi_structured_mm.default, +) + +aten__fp8_mm = ExternKernelChoice( + torch._scaled_mm, "at::_scaled_mm_out", op_overload=aten._scaled_mm.out +) + + +def _is_int8_mat(mat): + return mat.get_dtype() in (torch.int8, torch.uint8) + + +def bias_addmm(inp, mat1, mat2, *, out=None, alpha=1, beta=1): + """ + Giving torch.addmm a 1D tensor calls a different (faster) cublasLt + kernel under the hood. There are a few shapes where this is slower, + but they are rare. + """ + if (inp.stride(0) == 0 and inp.size(0) != 0) or inp.size(0) == 1: + return torch.addmm(inp[0], mat1, mat2, out=out, alpha=alpha, beta=beta) + return torch.addmm(inp, mat1, mat2, out=out, alpha=alpha, beta=beta) + + +def check_supported_striding(mat_a, mat_b) -> None: + def is_row_major(stride) -> bool: + return V.graph.sizevars.statically_known_equals(stride[1], 1) + + def is_col_major(stride) -> bool: + return V.graph.sizevars.statically_known_equals(stride[0], 1) + + def has_zero_dim(size) -> bool: + return bool( + V.graph.sizevars.statically_known_equals(size[0], 0) + or V.graph.sizevars.statically_known_equals(size[1], 0) + ) + + # Check mat_a (self) stride requirements + torch._check( + is_row_major(mat_a.get_stride()) or has_zero_dim(mat_a.get_size()), + lambda: f"mat_a must be row_major, got stride {mat_a.get_stride()}", + ) + + # Check mat_b stride requirements + torch._check( + is_col_major(mat_b.get_stride()) or has_zero_dim(mat_b.get_size()), + lambda: f"mat_b must be col_major, got stride {mat_b.get_stride()}", + ) + + +aten_bias_addmm = ExternKernelChoice(bias_addmm, None) + + +def decomposeK(a, b, k_splits): + m = a.shape[0] + n = b.shape[1] + k = a.shape[1] + + k_parts = k // k_splits + B = k_splits + a_reshaped = torch.permute(a.reshape(m, B, k_parts), (1, 0, 2)) + b_reshaped = b.reshape(B, k_parts, n) + result = torch.bmm(a_reshaped, b_reshaped, out_dtype=torch.float32) + reduced_buf = torch.sum(result, 0) + return reduced_buf.to(a.dtype) + + +class DecomposeKSugraphTemplate(SubgraphTemplate): + def __init__(self): + super().__init__( + name="decompose_k", + ) + + def generate( # type: ignore[override] + self, + input_nodes: list[Buffer], + layout: Layout, + k_split: int, + ) -> SubgraphChoiceCaller: + from torch._dispatch.python import enable_python_dispatcher + + from ..decomposition import select_decomp_table + + name = f"decompose_k_mm_{k_split}_split" + description = f"{k_split=}" + + with enable_python_dispatcher(): + decompositions = select_decomp_table() + fn = make_fx( + functools.partial(decomposeK, k_splits=k_split), + decompositions, + ) + + return super().generate( + name=name, + input_nodes=input_nodes, + layout=layout, + make_fx_graph=fn, + description=description, + ) + + +decompose_k_subgraph_template = DecomposeKSugraphTemplate() + + +class ContiguousTemplate(SubgraphTemplate): + def __init__(self, name: str, description: str, fn: Any): + self.name = name + self.description = description + self.fn = fn + super().__init__( + name=name, + ) + + def generate( # type: ignore[override] + self, + input_nodes: list[Buffer], + layout: Layout, + ) -> SubgraphChoiceCaller: + from torch._dispatch.python import enable_python_dispatcher + + from ..decomposition import select_decomp_table + + with enable_python_dispatcher(): + decompositions = select_decomp_table() + fn = make_fx( + self.fn, + decompositions, + ) + + return super().generate( + name=self.name, + input_nodes=input_nodes, + layout=layout, + make_fx_graph=fn, + description=self.description, + ) + + +def contiguous_mm(a, b): + return torch.mm(a, b.contiguous()) + + +def contiguous_addmm(inp, a, b): + return torch.addmm(inp, a, b.contiguous()) + + +mm_contiguous_subgraph_template = ContiguousTemplate( + "contiguous_mm", "contiguous mm", contiguous_mm +) +addmm_contiguous_subgraph_template = ContiguousTemplate( + "contiguous_addmm", "contiguous addmm", contiguous_addmm +) + + +@register_lowering(aten.mm, type_promotion_kind=None) +def tuned_mm(mat1, mat2, out_dtype=None, *, layout=None): + """ + Lowering for autotuning aten.mm with different backends (Aten, Triton, CUTLASS, etc.) + """ + if out_dtype is not None: + input_dtype = mat1.get_dtype() + torch._check( + mat2.get_dtype() == input_dtype, + lambda: "input dtypes must be the same", + ) + torch._check( + mat1.get_device().type == "cuda", + lambda: "out_dtype is only supported for CUDA", + ) + torch._check( + out_dtype == input_dtype + or ( + out_dtype == torch.float32 + and input_dtype in (torch.float16, torch.bfloat16) + ), + lambda: "out_dtype must be the same as input dtype or fp32 for fp16/bf16 inputs", + ) + + # Lower matmul-related operations (e.g., torch.matmul / torch.bmm / torch.addmm) + # into native matmul IR using `ops.dot`. When we see a matmul pattern + # (C[y, x] = A[y, r] * B[r, x]), the core idea is to emulate a broadcasted + # multiply followed by a sum. + # + # For example, given `C = torch.matmul(A, B)`, this can be rewritten as: + # + # Prod = A.unsqueeze(-1) * B.unsqueeze(0) + # C = Prod.sum(dim=1) + # + # Instead of explicitly using `ops.mul` and `ops.reduction("sum")`, we lower + # these into `ops.dot` (pointwise) and `ops.reduction("dot")`. These IR nodes + # are semantically equivalent to the `ops.mul` + `ops.reduction("sum")` + # combination, but are lowered to `tl.dot` during the code generation phase. + if use_native_matmul(mat1, mat2): + mat1 = lowerings[aten.unsqueeze](mat1, -1) + mat2 = lowerings[aten.unsqueeze](mat2, 0) + args, kwargs = transform_args( + args=[mat1, mat2], + kwargs={}, + broadcast=True, + type_promotion_kind=None, + convert_input_to_bool=False, + ) # Handles broadcasting the arguments + + if inductor_config.triton.codegen_upcast_to_fp32 and mat1.dtype in [ + torch.float16, + torch.bfloat16, + ]: + + def _to_dtype(x): + return ops.to_dtype(x, mat1.dtype, use_compute_types=False) + + args = [make_pointwise(_to_dtype)(x) for x in args] + + mul_pointwise = make_pointwise(ops.dot)(*args) + dot_reduction = make_reduction("dot")(mul_pointwise, 1) + + return dot_reduction + + # TODO(coconutruben): integrate into MMKernelInputs when all callsites use that + m, n, k, layout, mat1, mat2 = mm_args( + mat1, mat2, layout=layout, out_dtype=out_dtype + ) + static_shape, is_nonzero = _is_static_problem(layout) + name = "mm" + + # Create MMKernelInputs for standard MM at the top + kernel_inputs = MMKernelInputs([mat1, mat2], out_dtype=out_dtype) + + # below is for getting an overview logging info of inductor mms + counters["aten_mm_info"][f"aten.mm_{m}_{n}_{k}"] += 1 + log.info( + "Tuned aten.mm: m=%s, n=%s, k=%s, mat1_dtype=%s, mat2_dtype=%s, output_layout=%s", + m, + n, + k, + mat1.get_dtype(), + mat2.get_dtype(), + layout, + ) + + choices: list[ChoiceCaller] = [] + static_shape, is_nonzero = _is_static_problem(layout) + + aten_handler: ExternKernelChoice = aten_mm + aten_extra_kwargs: dict[str, Any] = {} + if out_dtype is not None: + aten_handler = aten_mm_dtype + aten_extra_kwargs = {"out_dtype": out_dtype} + + templates_to_use: list[Union[ExternKernelChoice, KernelTemplate]] = [] + kwarg_overrides: dict[str, dict[str, Any]] = {} + if use_aten_gemm_kernels(): + templates_to_use.append(aten_handler) + if aten_extra_kwargs: + kwarg_overrides[aten_handler.uid] = aten_extra_kwargs + + if ( + out_dtype is None + and is_nonzero + and use_triton_template(layout, check_max_autotune=True) + ): + if use_decompose_k_choice(m, n, k): + templates_to_use.append(decompose_k_subgraph_template) + # Triton Templates typically perform very poorly for large K. + # Its highly unlikely that if we want to use decompose_k, then + # Triton will ever win. + # + # To be conservative we increase this threshold for N/M by 2. + is_exhaustive = inductor_config.max_autotune_gemm_search_space == "exhaustive" + if is_exhaustive or not use_decompose_k_choice(m, n, k, threshold_multiple=2): + templates_to_use.append(mm_template) + + if use_triton_tma_template(mat1, mat2, output_layout=layout): + templates_to_use.append(persistent_tma_mm_template) + + if use_triton_blackwell_tma_template(mat1, mat2, output_layout=layout): + templates_to_use.append(blackwell_ws_persistent_device_tma_mm_template) + + templates_to_use.append(mm_contiguous_subgraph_template) + + choices.extend( + V.choices.get_template_configs( + kernel_inputs, + templates_to_use, + "mm", + kwarg_overrides=kwarg_overrides, + ) + ) + + if ( + out_dtype is None + and is_nonzero + and use_cutlass_template(layout, m, n, k) + and _use_cutlass_for_op("mm") + ): + CUTLASS3xGemmTemplate.add_cutlass_gemm_choices( + choices, layout, kernel_inputs.nodes() + ) + + if out_dtype is None and is_nonzero and use_ck_gemm_template(layout, m, n, k): + CKGemmTemplate.add_ck_gemm_choices(choices, layout, kernel_inputs.nodes()) + if out_dtype is None and is_nonzero and use_ck_tile_gemm_template(layout, m, n, k): + CKTileGemmTemplate.add_choices(choices, layout, kernel_inputs.nodes()) + + if out_dtype is None and use_cpp_gemm_template(layout, mat1, mat2): + CppGemmTemplate.add_choices( + choices, + layout, + kernel_inputs.nodes(), + ) + + input_nodes = [mat1, mat2] + if ( + out_dtype is None + and is_nonzero + and use_triton_template(layout) + and torch._inductor.config.run_autoheuristic(name) + and is_triton(mat1) + ): + always_included = [] + if use_aten_gemm_kernels(): + always_included.append("extern_mm") + num_choices_before_extra_configs = len(choices) + choices.extend( + V.choices.get_template_configs( + # TODO(coconutruben): remove once we deprecate ah + # mm-extra is a hack to keep the ah functionality alive + # while we transition to the unified kwargs retrieval + kernel_inputs, + [mm_template], + "mm-ah", + ) + ) + + # using AutoHeuristic for ranking + ah_choices = mm_autoheuristic( + mat1, + mat2, + m, + n, + k, + choices, + name, + input_nodes, + mm_operations(), + None, + top_k=10, + always_included=always_included, + ) + if not torch._inductor.config.collect_autoheuristic(name): + # if we are collecting data, we do not want to modify choices + if ah_choices is not None and len(ah_choices) > 0: + # the order in which autoheuristic returns choices is not the same as + # as the order of choices, which affects things like epilogue fusion. + # once epilogue fusion benchmarks choices in sorted order, I think we can + # just use the order returned by autoheuristic + choices = [choice for choice in choices if choice in ah_choices] + else: + choices = choices[:num_choices_before_extra_configs] + + if out_dtype is None: + for k in inductor_config.external_matmul: + choices.append( + lazy_register_extern_choice(k).bind(kernel_inputs.nodes(), layout) + ) + + best_config_future = None + if out_dtype is None and torch._inductor.config.remote_gemm_autotune_cache: + # Purposely not awaiting the future here - this kicks off the best config lookup at lowering time + # The future will be awaited at scheduling time in select_algorithm.py + best_config_future = gen_best_config(mat1, mat2) + + if box := distributed_autotune.maybe_autotune_remote( + name, choices, kernel_inputs.nodes(), layout + ): + return box + + return autotune_select_algorithm( + name, + choices, + kernel_inputs.nodes(), + layout, + best_config_future=best_config_future, + ) + + +@register_lowering(aten._int_mm, type_promotion_kind=None) +def tuned_int_mm(mat1, mat2, *, layout=None): + # TODO(coconutruben): integrate into MMKernelInputs when all callsites use that + m, n, k, layout, mat1, mat2 = mm_args( + mat1, mat2, layout=layout, out_dtype=torch.int32 + ) + name = "int_mm" + # below is for getting an overview logging info of inductor mms + counters["aten_mm_info"][f"aten._int_mm_{m}_{n}_{k}"] += 1 + log.info( + "Tuned aten._int_mm: m=%s, n=%s, k=%s, mat1_dtype=%s, mat2_dtype=%s, output_layout=%s", + m, + n, + k, + mat1.get_dtype(), + mat2.get_dtype(), + layout, + ) + + static_shape, is_nonzero = _is_static_problem(layout) + use_cutlass = static_shape and is_nonzero and use_cutlass_template(layout, m, n, k) + choices: list[ChoiceCaller] = [] + + # Create MMKernelInputs for Int MM + kernel_inputs = MMKernelInputs([mat1, mat2], out_dtype=torch.int32) + + # Collect all templates for unified call + templates_to_use: list[Union[ExternKernelChoice, KernelTemplate]] = [] + if use_aten_gemm_kernels(): + templates_to_use.append(aten__int_mm) + + if is_nonzero and use_triton_template( + layout, enable_int32=True, check_max_autotune=False + ): + templates_to_use.append(mm_template) + + # Single unified call for all templates + choices.extend( + V.choices.get_template_configs(kernel_inputs, templates_to_use, name) + ) + + if use_cutlass and _use_cutlass_for_op(name): + CUTLASS3xGemmTemplate.add_cutlass_gemm_choices( + choices, layout, kernel_inputs.nodes(), fuseable=True, non_fuseable=True + ) + + return autotune_select_algorithm(name, choices, kernel_inputs.nodes(), layout) + + +@register_lowering(aten.addmm, type_promotion_kind=None) +def tuned_addmm(inp, mat1, mat2, *, alpha=1, beta=1, layout=None): + """ + Lowering for autotuning aten.addmm with different backends (Aten, Triton, CUTLASS, etc.) + """ + if use_native_matmul(mat1, mat2): + if beta == 0: + arg1 = 0 + else: + arg1 = lowerings[aten.mul](beta, inp) + + if alpha == 0: + arg2 = 0 + else: + arg2 = lowerings[aten.mul](alpha, lowerings[aten.mm](mat1, mat2)) + + return lowerings[aten.add](arg1, arg2) + + # TODO(coconutruben): integrate into MMKernelInputs when all callsites use that + m, n, k, layout, mat1, mat2, inp_expanded = mm_args(mat1, mat2, inp, layout=layout) + static_shape, is_nonzero = _is_static_problem(layout) + name = "addmm" + + # Create MMKernelInputs for AddMM at the top + kernel_inputs = MMKernelInputs( + [inp_expanded, mat1, mat2], scalars=dict(alpha=alpha, beta=beta) + ) + choices: list[ChoiceCaller] = [] + + # below is for getting an overview logging info of inductor mms + counters["aten_mm_info"][f"aten.addmm_{m}_{n}_{k}"] += 1 + log.info( + "Tuned aten.addmm: m=%s, n=%s, k=%s, mat1_dtype=%s, mat2_dtype=%s, output_layout=%s", + m, + n, + k, + mat1.get_dtype(), + mat2.get_dtype(), + layout, + ) + if (not is_nonzero) or ( + not (inductor_config.max_autotune or inductor_config.max_autotune_gemm) + ): + # TODO(coconutruben): combine this with the main flow of addmm through + # a subgraph or something as inp vs inp_expanded causes some slight numeric + # differences + kernel_inputs = MMKernelInputs( + [inp, mat1, mat2], scalars=dict(alpha=alpha, beta=beta) + ) + choices.extend( + V.choices.get_template_configs( + kernel_inputs, + [aten_addmm], + name, + ) + ) + return autotune_select_algorithm(name, choices, kernel_inputs.nodes(), layout) + + # Collect all templates for unified call + templates_to_use: list[Union[ExternKernelChoice, KernelTemplate]] = [] + if use_aten_gemm_kernels(): + templates_to_use.extend([aten_bias_addmm, aten_addmm]) + + if is_nonzero and use_triton_template(layout, check_max_autotune=False): + templates_to_use.append(mm_template) + + if use_triton_tma_template(mat1, mat2, output_layout=layout): + templates_to_use.append(persistent_tma_mm_template) + + if use_triton_blackwell_tma_template(mat1, mat2, output_layout=layout): + templates_to_use.append(blackwell_ws_persistent_device_tma_mm_template) + + templates_to_use.append(addmm_contiguous_subgraph_template) + + # Single unified call for all templates + choices.extend( + V.choices.get_template_configs(kernel_inputs, templates_to_use, name) + ) + + if ( + is_nonzero + and use_cutlass_template(layout, m, n, k) + and _use_cutlass_for_op(name) + ): + CUTLASS3xGemmTemplate.add_cutlass_gemm_choices( + choices, + layout, + # reorder here because CUTLASS expects (x, w, bias) but torch + # is bias, x, w + kernel_inputs.nodes(reorder=[1, 2, 0]), + alpha=alpha, + beta=beta, + ) + + if is_nonzero and use_ck_gemm_template(layout, m, n, k): + CKGemmTemplate.add_ck_gemm_choices( + choices, + layout, + # reorder here because CK expects (x, w, bias) but torch + # is bias, x, w + kernel_inputs.nodes(reorder=[1, 2, 0]), + alpha=alpha, + beta=beta, + input_reorder=[2, 0, 1], + ) + + if use_cpp_gemm_template(layout, mat1, mat2): + CppGemmTemplate.add_choices( + choices, + layout, + kernel_inputs.nodes(), + alpha=alpha, + beta=beta, + has_bias=True, + ) + + return autotune_select_algorithm(name, choices, kernel_inputs.nodes(), layout) + + +@register_lowering(aten._sparse_semi_structured_mm, type_promotion_kind=None) +def tuned_sparse_semi_structured_mm( + mat1, mat1_meta, mat2, *, out_dtype=None, layout=None +): + from torch._inductor.select_algorithm import realize_inputs + + # TODO(coconturuben): support V.choices.get_mm_configs for sparse_semi_structured_mm + mat1, mat1_meta, mat2 = realize_inputs(mat1, mat1_meta, mat2) + m1, k1 = mat1.get_size() + m2, _ = mat1_meta.get_size() + k2, n = mat2.get_size() + m = V.graph.sizevars.check_equals_and_simplify(m1, m2) + k = V.graph.sizevars.check_equals_and_simplify(2 * k1, k2) + if layout is None: + from torch._inductor.ir import FixedLayout + + layout = FixedLayout( + mat2.get_device(), + out_dtype if out_dtype else mat2.get_dtype(), + [m, n], + [n, 1], + ) + else: + assert out_dtype is None, "out_dtype is ignored if layout is specified." + + choices = ( + [ + aten__sparse_semi_structured_mm.bind( + (mat1, mat1_meta, mat2), layout, out_dtype=out_dtype + ) + ] + if use_aten_gemm_kernels() + else [] + ) + + if ( + m * n != 0 + and use_cutlass_template(layout, m, n, k) + and _use_cutlass_for_op("sparse_semi_structured_mm") + ): + CUTLASS2xGemmTemplate.add_cutlass_gemm_choices( + choices, layout, [mat1, mat2, mat1_meta], fuseable=True, non_fuseable=True + ) + + return autotune_select_algorithm( + "sparse_semi_structured_mm", choices, (mat1, mat1_meta, mat2), layout + ) + + +scaling_pairs = [ + (ScalingType.TensorWise, ScalingType.TensorWise), + (ScalingType.RowWise, ScalingType.RowWise), + (ScalingType.BlockWise1x128, ScalingType.BlockWise128x128), + (ScalingType.BlockWise1x128, ScalingType.BlockWise1x128), +] + + +epilogue_scaling_types = [ScalingType.TensorWise, ScalingType.RowWise] +main_loop_scaling_types = [ScalingType.BlockWise1x128, ScalingType.BlockWise128x128] + + +def _is_tensorwise_scaling(sz: Any) -> bool: + return (len(sz) == 0) or all( + V.graph.sizevars.statically_known_equals(d, 1) for d in sz + ) + + +def _is_rowwise_scaling(sz: Any, transpose: bool) -> bool: + idx = 0 if transpose else -1 + return V.graph.sizevars.statically_known_equals(sz[idx], 1) + + +def _is_blockwise1xTILESIZE_scaling( + sz: Any, tensor_sz: Any, tile_size: int, transpose: bool +) -> bool: + lhs = 1 if transpose else 0 + rhs = 0 if transpose else 1 + return V.graph.sizevars.statically_known_equals( + sz[lhs], tensor_sz[lhs] + ) and V.graph.sizevars.statically_known_equals( + sz[rhs], ceildiv(tensor_sz[rhs], tile_size) + ) + + +def _is_blockwise128x128_scaling(sz: Any, tensor_sz: Any) -> bool: + return V.graph.sizevars.statically_known_equals( + sz[0], ceildiv(tensor_sz[0], 128) + ) and V.graph.sizevars.statically_known_equals(sz[1], ceildiv(tensor_sz[1], 128)) + + +def is_desired_scaling( + t: Any, + scale_size: torch.Tensor, + scaling_type: ScalingType, + transpose: bool = False, +) -> bool: + match scaling_type: + case ScalingType.TensorWise: + return _is_tensorwise_scaling(scale_size) + case ScalingType.RowWise: + return _is_rowwise_scaling(scale_size, transpose) + case ScalingType.BlockWise1x128: + return _is_blockwise1xTILESIZE_scaling( + scale_size, t.get_size(), 128, transpose + ) + case ScalingType.BlockWise128x128: + return _is_blockwise128x128_scaling(scale_size, t.get_size()) + case _: + raise AssertionError(f"Unsupported scaling type {scaling_type}") + + +def get_tile_size(scale_option) -> int: + match scale_option: + case ScalingType.BlockWise128x128: + return 128 + case ScalingType.BlockWise1x128: + return 128 + case _: + raise AssertionError( + f"Unsupported scaling type {scale_option} in get_tile_size" + ) + + +def get_scaling_options( + mat_a: Any, + mat_b: Any, + scale_a_size: torch.Tensor, + scale_b_size: torch.Tensor, +) -> tuple[ScalingType, ScalingType]: + for scale_option_a, scale_option_b in scaling_pairs: + if is_desired_scaling( + mat_a, scale_a_size, scale_option_a + ) and is_desired_scaling(mat_b, scale_b_size, scale_option_b, transpose=True): + return scale_option_a, scale_option_b + + raise AssertionError( + f"Inductor Triton does not support scale_a.shape = {scale_a_size}, scale_b.shape = {scale_b_size}" + ) # verify that shapes are supported by at least one existing pairing + + +@register_lowering(aten._scaled_mm.default, type_promotion_kind=None) # type: ignore[misc] +def tuned_scaled_mm( + mat_a, + mat_b, + scale_a, + scale_b, + bias=None, + scale_result=None, + out_dtype=None, + use_fast_accum=False, + layout=None, +): + """ + Performs an optimized matrix multiplication where scaling factors are applied + to the inputs and/or output. + + Args: + mat1 (Tensor): First input matrix + mat2 (Tensor): Second input matrix + scale1 (Tensor): Scale factor applied to mat1 (supports broadcasting) + scale2 (Tensor): Scale factor applied to mat2 (supports broadcasting) + bias (Tensor, optional): Optional bias tensor to add to the result + layout: Layout hint for optimization + + Returns: + Tensor: The result of the scaled matrix multiplication + """ + # TODO(coconutruben): integrate into MMKernelInputs when all callsites use that + m, n, k, layout, mat_a, mat_b = mm_args( + mat_a, mat_b, layout=layout, out_dtype=out_dtype + ) + # below is for getting an overview logging info of inductor mms + counters["aten_mm_info"][f"aten._scaled_mm.default_{m}_{n}_{k}"] += 1 + log.info( + "Tuned aten._scaled_mm.default: m=%s, n=%s, k=%s, mat1_dtype=%s, mat2_dtype=%s, output_layout=%s", + m, + n, + k, + mat_a.get_dtype(), + mat_b.get_dtype(), + layout, + ) + name = "scaled_mm" + check_supported_striding(mat_a, mat_b) + + scale_a_real, scale_b_real = realize_inputs(scale_a, scale_b) + + input_nodes: list[Any] + + if not bias: + input_nodes = [mat_a, mat_b, scale_a_real, scale_b_real] + else: + bias_real = realize_inputs(bias) + input_nodes = [mat_a, mat_b, scale_a_real, scale_b_real, bias_real] + + # Create MMKernelInputs for Scaled MM (matrices are at indices 0, 1) + kernel_inputs = MMKernelInputs( + input_nodes, mat1_idx=0, mat2_idx=1, out_dtype=out_dtype + ) + + choices: list[ChoiceCaller] = [] + + # Collect all templates for unified call + templates_to_use: list[Union[ExternKernelChoice, KernelTemplate]] = [] + kwarg_overrides = {} + + if use_aten_gemm_kernels(): + templates_to_use.append(aten__fp8_mm) + kwarg_overrides[aten__fp8_mm.uid] = dict( + out_dtype=out_dtype, use_fast_accum=use_fast_accum + ) + + _, is_nonzero = _is_static_problem(layout) + + if ( + # We dont have triton lowerings for the MX variants yet + scale_a.dtype == torch.float32 + and is_nonzero + and use_triton_template(layout, enable_float8=True, check_max_autotune=False) + ): + overriders = dict(USE_FAST_ACCUM=use_fast_accum) + + # TODO (paulzhan): There is no template that exists for bias and TMA + # Don't run tma template currently if bias exist + if use_triton_tma_template(mat_a, mat_b, output_layout=layout) and not bias: + scale_a_size, scale_b_size = scale_a_real.shape, scale_b_real.shape + + scale_option_a, scale_option_b = get_scaling_options( + mat_a, mat_b, scale_a_size, scale_b_size + ) + overriders["SCALE_RECIPE_A"] = scale_option_a.value + overriders["SCALE_RECIPE_B"] = scale_option_b.value + + if ( + scale_option_a in epilogue_scaling_types + and scale_option_b in epilogue_scaling_types + ): + templates_to_use.append(scaled_mm_device_tma_epilogue_scaling_template) + kwarg_overrides[scaled_mm_device_tma_epilogue_scaling_template.uid] = ( + overriders + ) + elif ( + scale_option_a in main_loop_scaling_types + and scale_option_b in main_loop_scaling_types + ): + overriders["TILE_SIZE_A"] = get_tile_size(scale_option_a) + overriders["TILE_SIZE_B"] = get_tile_size(scale_option_b) + + templates_to_use.append(scaled_mm_device_tma_main_loop_scaling_template) + kwarg_overrides[scaled_mm_device_tma_main_loop_scaling_template.uid] = ( + overriders + ) + else: + raise AssertionError( + "Inductor Triton does not support scaling options that are present " + + "in both epilogue scaling and main loop scaling" + ) + + if ( + use_triton_blackwell_tma_template(mat_a, mat_b, output_layout=layout) + and not bias + ): + templates_to_use.append(blackwell_ws_persistent_device_tma_mm_template) + kwarg_overrides[blackwell_ws_persistent_device_tma_mm_template.uid] = ( + overriders + ) + + templates_to_use.append(mm_template) + kwarg_overrides[mm_template.uid] = overriders + + # Single unified call for all templates + choices.extend( + V.choices.get_template_configs( + kernel_inputs, + templates_to_use, + name, + kwarg_overrides=kwarg_overrides, + ) + ) + + # Early return for MX variants + if scale_a.dtype != torch.float32: + return autotune_select_algorithm(name, choices, input_nodes, layout) + + if ( + is_nonzero + and use_cutlass_template(layout, m, n, k) + and _use_cutlass_for_op(name) + ): + CUTLASS3xGemmTemplate.add_cutlass_gemm_choices( + choices, + layout, + kernel_inputs.nodes(), # type: ignore[arg-type] + use_fast_accum=use_fast_accum, # type: ignore[arg-type] + ) + + if is_nonzero and use_ck_gemm_template(layout, m, n, k): + CKGemmTemplate.add_ck_gemm_choices(choices, layout, kernel_inputs.nodes()) + + return autotune_select_algorithm(name, choices, kernel_inputs.nodes(), layout) + + +@functools.cache +def _is_sm7x_or_older_gpu(index: Optional[int]) -> bool: + props = torch.cuda.get_device_properties(index or 0) + return props.major <= 7 + + +def dims_are_int(dims): + return all(isinstance(dim, int) for dim in dims) + + +def mm_autoheuristic( + mat1, + mat2, + m, + n, + k, + choices, + name, + input_nodes, + ops, + precondition, + top_k: Optional[int] = None, + always_included=None, +): + m, n, k = get_size_hints(mat1, mat2, m, n, k) + if not dims_are_int([m, n, k]): + return None + mat1_stride, mat2_stride = get_size_hints_strides(mat1, mat2) + + def get_context(m, k, n, mat1, mat2, mat1_stride, mat2_stride): + context = AHContext() + context.add_feature("m", m) + context.add_feature("k", k) + context.add_feature("n", n) + context.add_feature("mat1_dtype", mat1.layout.dtype, is_categorical=True) + context.add_feature("mat2_dtype", mat2.layout.dtype, is_categorical=True) + context_add_strides(context, "mat1", mat1_stride) + context_add_strides(context, "mat2", mat2_stride) + context.add_feature( + "mat1_iscontig", mat1.layout.is_contiguous(), is_categorical=True + ) + context.add_feature( + "mat2_iscontig", mat2.layout.is_contiguous(), is_categorical=True + ) + if name == "mm": + context_add_using_tf32(context, mat1.layout.dtype) + return context + + def fallback(): + return None + + context = get_context(m, k, n, mat1, mat2, mat1_stride, mat2_stride) + autoheuristic = AutoHeuristicSelectAlgorithm( + fallback=fallback, + choices=choices, + input_nodes=input_nodes, + context=context, + name=name, + augment_context=ops, + precondition=precondition, + ) + + if top_k is not None: + # TODO: is there a cleaner way to ensure aten.mm is always included? + return autoheuristic.get_top_k_choices_caller( + top_k, always_included=always_included + ) + + return autoheuristic.get_choice_caller() + + +def get_size_hints(mat1, mat2, m, n, k): + if not isinstance(m, int) or not isinstance(k, int): + (m, k) = V.graph.sizevars.size_hints( + mat1.get_size(), + fallback=torch._inductor.config.unbacked_symint_fallback, + ) + + if not isinstance(n, int) or not isinstance(k, int): + (k, n) = V.graph.sizevars.size_hints( + mat2.get_size(), + fallback=torch._inductor.config.unbacked_symint_fallback, + ) + return m, n, k + + +def get_size_hints_strides(mat1, mat2): + mat1_stride = mat1.layout.stride + mat2_stride = mat2.layout.stride + strides = [mat1_stride, mat2_stride] + strides_hints = [] + for stride in strides: + if not isinstance(stride, int): + stride = V.graph.sizevars.size_hints( + stride, + fallback=torch._inductor.config.unbacked_symint_fallback, + ) + strides_hints.append(stride) + return strides_hints[0], strides_hints[1] diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/mm_common.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/mm_common.py new file mode 100644 index 0000000000000000000000000000000000000000..eb22b95af2afcef65cb4876d9c9685633e5bde70 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/mm_common.py @@ -0,0 +1,263 @@ +# mypy: allow-untyped-defs +import logging +from collections.abc import Sequence +from functools import partial +from pathlib import Path +from typing import Any + +import torch +from torch._inductor.select_algorithm import realize_inputs, SymbolicGridFn +from torch._inductor.utils import get_current_backend, sympy_product +from torch._inductor.virtualized import V +from torch.fx.experimental.symbolic_shapes import has_free_unbacked_symbols + +from .. import config +from ..codegen.wrapper import PythonWrapperCodegen +from ..ir import _IntLike, Layout, TensorBox +from ..utils import load_template + + +log = logging.getLogger(__name__) + + +@SymbolicGridFn +def mm_grid(m, n, meta, *, cdiv): + """ + The CUDA grid size for matmul triton templates. + """ + return (cdiv(m, meta["BLOCK_M"]) * cdiv(n, meta["BLOCK_N"]), 1, 1) + + +@SymbolicGridFn +def persistent_mm_grid(M: int, N: int, meta: dict[str, Any], *, cdiv, min): + """Defines the grid for persistent kernels.""" + return ( + min(meta["NUM_SMS"], cdiv(M, meta["BLOCK_M"]) * cdiv(N, meta["BLOCK_N"])), + 1, + 1, + ) + + +@SymbolicGridFn +def persistent_grouped_mm_grid(*args): + meta = args[-1] + return (meta["NUM_SMS"], 1, 1) + + +def acc_type(dtype): + if dtype in (torch.float16, torch.bfloat16): + return "tl.float32" + return f"tl.{dtype}".replace("torch.", "") + + +def mm_args( + mat1, + mat2, + *others, + layout=None, + out_dtype=None, + use_4x2_dim=False, + mat2_transposed=False, +): + """ + Common arg processing for mm,bmm,addmm,etc + """ + mat1, mat2 = realize_inputs(mat1, mat2) + *b1, m, k1 = mat1.get_size() + if mat2_transposed: + *b2, n, k2 = mat2.get_size() + else: + *b2, k2, n = mat2.get_size() + b = [V.graph.sizevars.check_equals_and_simplify(a, b) for a, b in zip(b1, b2)] + if use_4x2_dim: + k2 = k2 * 2 + k = V.graph.sizevars.check_equals_and_simplify(k1, k2) + if layout is None: + from torch._inductor.ir import FixedLayout + + if out_dtype is None: + out_dtype = mat1.get_dtype() + + layout = FixedLayout( + mat1.get_device(), + out_dtype, + [*b, m, n], + ) + else: + assert out_dtype is None, "out_dtype is ignored if layout is specified." + from ..lowering import expand + + others = [realize_inputs(expand(x, layout.size)) for x in others] + + return [m, n, k, layout, mat1, mat2, *others] + + +def addmm_epilogue(dtype, alpha, beta): + def epilogue(acc, bias): + if alpha != 1: + acc = V.ops.mul(acc, V.ops.constant(alpha, dtype)) + if beta != 1: + bias = V.ops.mul(bias, V.ops.constant(beta, dtype)) + return V.ops.add(acc, bias) + + return epilogue + + +def scale_mm_epilogue(): + """ + Create an epilogue function that applies scaling to matrix multiplication result + using the given scale factors. + + Args: + dtype: The data type of the output + scale_a: Scale factor for matrix A + scale_b: Scale factor for matrix B + + Returns: + Epilogue function that takes the accumulator and applies scaling + """ + + def epilogue(acc, inv_a_scale, inv_b_scale, bias=None): + # The epilogue function receives the accumulator (result of mat1 @ mat2) + # and applies the scaling factors + # In the original scaled_mm, we use inverse scales, so we multiply by them + mul_scales = V.ops.mul(inv_a_scale, inv_b_scale) + mul_acc = V.ops.mul(acc, mul_scales) + if bias is not None: + return V.ops.add(mul_acc, bias) + else: + return mul_acc + + return epilogue + + +def use_native_matmul(mat1, mat2): + if not config.triton.native_matmul: + return False + + # If tma matmul is on, don't do native matmul + if ( + config.triton.enable_persistent_tma_matmul + and torch.utils._triton.has_triton_tma_device() + ): + raise AssertionError("native matmul doesn't support tma codegen yet") + + # Currently only enable native matmul for default indexing + # TODO : support block ptr + if config.triton.use_block_ptr: + raise AssertionError("native matmul doesn't support block_ptr codegen yet") + + # Currently only enable native matmul for triton on GPU. + device_type = mat1.get_device().type + if not ( + device_type in ("cuda", "xpu") and get_current_backend(device_type) == "triton" + ): + return False + + # Currently, tl.dot only supports following dtypes + triton_supported_dtype = [ + torch.int8, + torch.uint8, + torch.float16, + torch.bfloat16, + torch.float32, + ] + if mat1.dtype not in triton_supported_dtype: + return False + if mat2.dtype not in triton_supported_dtype: + return False + + # (..., M, K) @ (..., K, N) + m, k, n = mat1.get_size()[-2], mat1.get_size()[-1], mat2.get_size()[-1] + + # If the shape has unbacked symbols, don't do native matmul. + # This is related to the behavior of statically_known_multiple_of on unbacked symints. + # Since statically_known_multiple_of just returns False for unbacked symbols + # due to the expensive cost, codegen fails when there is a unbacked symbol. + # In particular, it fails at _split_iteration_ranges in codegen/simd.py. + # See this : https://github.com/pytorch/pytorch/pull/131649 + if any(map(has_free_unbacked_symbols, [m, k, n])): + return False + + # Consider the shape (m,k,n) > 1 + # TODO : support when size = 1 + if ( + V.graph.sizevars.statically_known_leq(m, 1) + or V.graph.sizevars.statically_known_leq(k, 1) + or V.graph.sizevars.statically_known_leq(n, 1) + ): + return False + + return True + + +def _is_static_problem(layout: Layout) -> tuple[bool, bool]: + """ + Check if input tensors and output layout have static shapes and non-zero sizes. + + Args: + layout: Output layout object with a 'size' attribute. + + Returns: + Tuple[bool, bool]: (is_static, is_nonzero) + is_static: True if all shapes are statically known + is_nonzero: True if all dimensions are non-zero + """ + static_shape = True + static_size = PythonWrapperCodegen.statically_known_list_of_ints_or_none( + layout.size + ) + if static_size is None: + nonzero = True + for s in layout.size: + sz = PythonWrapperCodegen.statically_known_int_or_none(s) + if sz is not None and sz == 0: + nonzero = False + break + return False, nonzero + numel = 1 + for dim in static_size: + numel *= dim + nonzero = numel > 0 + return static_shape, nonzero + + +def check_supported_striding(mat_a: TensorBox, mat_b: TensorBox) -> None: + def is_row_major(stride: Sequence[_IntLike]) -> bool: + return stride[-1] == 1 + + def is_col_major(stride: Sequence[_IntLike]) -> bool: + return stride[-2] == 1 + + def has_zero_dim(size: Sequence[_IntLike]) -> bool: + return bool(size[0] == 0 or size[1] == 0) + + # Check mat_a (self) stride requirements + torch._check( + is_row_major(mat_a.get_stride()) or has_zero_dim(mat_a.get_size()), + lambda: f"mat_a must be row_major, got stride {mat_a.get_stride()}", + ) + + # Check mat_b stride requirements + torch._check( + is_col_major(mat_b.get_stride()) or has_zero_dim(mat_b.get_size()), + lambda: f"mat_b must be col_major, got stride {mat_b.get_stride()}", + ) + + +def is_batch_stride_largest_or_zero(mat1, mat2, layout) -> bool: + """ + Checking if the batch stride is the largest in the stride. + """ + sizes = [mat1.get_size(), mat2.get_size(), layout.size] + strides = [mat1.get_stride(), mat2.get_stride(), layout.stride] + for size, stride in zip(sizes, strides): + assert len(size) == len(stride) == 3, "Expect 3D tensors" + if stride[0] != 0 and stride[0] != sympy_product(size[1:]): + return False + + return True + + +_KERNEL_TEMPLATE_DIR = Path(__file__).parent / "templates" +load_kernel_template = partial(load_template, template_dir=_KERNEL_TEMPLATE_DIR) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/mm_grouped.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/mm_grouped.py new file mode 100644 index 0000000000000000000000000000000000000000..35ee6a541c15079d32f8291ee57e7e3909956cb4 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/mm_grouped.py @@ -0,0 +1,891 @@ +# mypy: allow-untyped-defs +import logging +from dataclasses import asdict, dataclass +from typing import Any, Optional + +import torch +from torch._dynamo.utils import counters +from torch._inductor.codegen.cutedsl.cutedsl_template import CuteDSLTemplate +from torch._inductor.runtime.triton_compat import tl +from torch._inductor.template_heuristics.cutedsl import get_groupgemm_configs +from torch._inductor.virtualized import V +from torch.utils._triton import has_triton + +from ..ir import ChoiceCaller, Layout, TensorBox +from ..lowering import register_lowering +from ..select_algorithm import ( + autotune_select_algorithm, + ExternKernelChoice, + realize_inputs, + TritonTemplate, +) +from ..utils import ( + get_gpu_shared_memory, + get_num_sms, + has_free_symbols, + use_aten_gemm_kernels, + use_blackwell_cutedsl_grouped_mm, + use_triton_template, +) +from .mm_common import ( + _is_static_problem, + check_supported_striding, + load_kernel_template, + persistent_grouped_mm_grid, +) + + +log = logging.getLogger(__name__) +aten = torch.ops.aten + + +@dataclass +class Config: + kwargs: dict[str, int] + num_stages: int + num_warps: int + + +_NV_CONFIGS = [ + Config( + { + "BLOCK_M": block_size_m, + "BLOCK_N": block_size_n, + "BLOCK_K": block_size_k, + "NUM_CONSUMER_GROUPS": 1, + }, + num_stages=num_stages, + num_warps=num_warps, + ) + for block_size_m in [16, 32, 64, 128] + for block_size_n in [64, 128, 256] + for block_size_k in [64, 128, 256] + for num_stages in [3, 4] + for num_warps in [4, 8] +] + + +def grouped_mm_configs(): + return _NV_CONFIGS + + +def early_config_prune(g, m, dtsize, configs, named_args): + pruned_configs = [] + for config in configs: + kw = config.kwargs + BLOCK_M, BLOCK_N, BLOCK_K, num_stages, num_warps, num_consumer_groups = ( + kw["BLOCK_M"], + kw["BLOCK_N"], + kw["BLOCK_K"], + config.num_stages, + config.num_warps, + getattr(config, "num_consumer_groups", 0), + ) + + # 1. Prune NV configs depending on g and m. + if not has_free_symbols((g, m)): + a_is_2d, b_is_2d = named_args["A_IS_2D"], named_args["B_IS_2D"] + m_avg = m // g if a_is_2d and not b_is_2d else m + if m_avg <= 16: + if BLOCK_M > 32: + continue + elif m_avg <= 32: + if BLOCK_M > 64: + continue + elif m_avg <= 64: + if BLOCK_M <= 16: + continue + else: + if BLOCK_M <= 32: + continue + + # 2. make sure we have enough smem + max_shared_memory = get_gpu_shared_memory() + + required_shared_memory = (BLOCK_M + BLOCK_N) * BLOCK_K * num_stages * dtsize + if required_shared_memory > max_shared_memory: + continue + + use_warp_specialization = num_consumer_groups >= 1 + + # 3. make sure we can partition for ws + if use_warp_specialization: + if num_warps != 4: + continue + + # "tritongpu-warp-spec-data-partition" + m_slice = BLOCK_M // num_consumer_groups + n_slice = BLOCK_N // num_consumer_groups + if m_slice < 64 and n_slice < 256: + continue + + pruned_configs.append(config) + + return pruned_configs + + +triton_grouped_mm_source = r""" +{% macro assign_maybe_constexpr(name, value_expr) -%} + {%- set value_str = value_expr | string -%} + {%- set sentinel = "__NOT_A_NUMBER__" -%} + {%- set as_int = value_str | int(default=sentinel) -%} + {%- set as_float = value_str | float(default=sentinel) -%} + {%- set is_constexpr = (as_int != sentinel) or (as_float != sentinel) -%} + {{ name }}{{ ": tl.constexpr" if is_constexpr else "" }} = {{ value_expr }} +{%- endmacro %} + +import triton +import triton.language as tl + +@triton.jit +def do_tma_loads( + g, a_desc, b_desc, m_offset, n_offset, k_offset, + BLOCK_M: tl.constexpr, BLOCK_N: tl.constexpr, BLOCK_K: tl.constexpr, +): +{%- if A_IS_2D %} +{%- if A_IS_K_MAJOR %} + a = a_desc.load([m_offset, k_offset]) +{%- else %} + a = a_desc.load([k_offset, m_offset]) +{%- endif %} +{%- else %} +{%- if A_IS_K_MAJOR %} + a = a_desc.load([g, m_offset, k_offset]).reshape(BLOCK_M, BLOCK_K) +{%- else %} + a = a_desc.load([g, k_offset, m_offset]).reshape(BLOCK_K, BLOCK_M) +{%- endif %} +{%- endif %} +{%- if B_IS_2D %} +{%- if B_IS_K_MAJOR %} + b = b_desc.load([n_offset, k_offset]) +{%- else %} + b = b_desc.load([k_offset, n_offset]) +{%- endif %} +{%- else %} +{%- if B_IS_K_MAJOR %} + b = b_desc.load([g, n_offset, k_offset]).reshape(BLOCK_N, BLOCK_K) +{%- else %} + b = b_desc.load([g, k_offset, n_offset]).reshape(BLOCK_K, BLOCK_N) +{%- endif %} +{%- endif %} + + return (a, b) + + +@triton.jit +def do_mma(a, b, accumulator): +{%- if USE_FAST_ACCUM %} +{%- if A_IS_K_MAJOR and B_IS_K_MAJOR %} + accumulator = tl.dot(a, b.T, accumulator) +{%- elif A_IS_K_MAJOR and not B_IS_K_MAJOR %} + accumulator = tl.dot(a, b, accumulator) +{%- elif not A_IS_K_MAJOR and B_IS_K_MAJOR %} + accumulator = tl.dot(a.T, b.T, accumulator) +{%- else %} + accumulator = tl.dot(a.T, b, accumulator) +{%- endif %} +{%- else %} +{%- if A_IS_K_MAJOR and B_IS_K_MAJOR %} + accumulator += tl.dot(a, b.T) +{%- elif A_IS_K_MAJOR and not B_IS_K_MAJOR %} + accumulator += tl.dot(a, b) +{%- elif not A_IS_K_MAJOR and B_IS_K_MAJOR %} + accumulator += tl.dot(a.T, b.T) +{%- else %} + accumulator += tl.dot(a.T, b) +{%- endif %} +{%- endif %} + + return accumulator + + +{%- if SCALED %} +{%- if A_IS_2D or B_IS_2D %} +{{def_kernel("a_ptr", "b_ptr", "scale_a_ptr", "scale_b_ptr", "offsets_ptr")}} +{%- else %} +{{def_kernel("a_ptr", "b_ptr", "scale_a_ptr", "scale_b_ptr")}} +{%- endif %} +{%- else %} +{%- if A_IS_2D or B_IS_2D %} +{{def_kernel("a_ptr", "b_ptr", "offsets_ptr")}} +{%- else %} +{{def_kernel("a_ptr", "b_ptr")}} +{%- endif %} +{%- endif %} + tidx = tl.program_id(0).to(INDEX_DTYPE) + +{%- set M_IS_VARYING = A_IS_2D and not B_IS_2D %} +{%- set N_IS_VARYING = not A_IS_2D and B_IS_2D %} +{%- set K_IS_VARYING = A_IS_2D and B_IS_2D %} + +{%- if A_IS_2D %} +{%- if B_IS_2D %} + {{ assign_maybe_constexpr("G", size("offsets_ptr", 0)) }} +{%- else %} + {{ assign_maybe_constexpr("G", size("b_ptr", 0)) }} +{%- endif %} +{%- else %} +{%- if B_IS_2D %} + {{ assign_maybe_constexpr("G", size("a_ptr", 0)) }} +{%- else %} + {{ assign_maybe_constexpr("G", size("a_ptr", 0)) }} +{%- endif %} +{%- endif %} + + # the b_ptr tensor is given with its last two dims transposed, revert here + + {{ assign_maybe_constexpr("M", size("a_ptr", -2)) }} + {{ assign_maybe_constexpr("N", size("b_ptr", -1)) }} + {{ assign_maybe_constexpr("K", size("a_ptr", -1)) }} + + {{ assign_maybe_constexpr("A_STRIDE_M", stride("a_ptr", -2)) }} + {{ assign_maybe_constexpr("A_STRIDE_K", stride("a_ptr", -1)) }} +{%- if not A_IS_2D %} + {{ assign_maybe_constexpr("A_STRIDE_G", stride("a_ptr", 0)) }} +{%- if SCALED %} + {{ assign_maybe_constexpr("SCALE_A_STRIDE_G", stride("scale_a_ptr", 0)) }} +{%- endif %} +{%- endif %} + {{ assign_maybe_constexpr("B_STRIDE_N", stride("b_ptr", -1)) }} + {{ assign_maybe_constexpr("B_STRIDE_K", stride("b_ptr", -2)) }} +{%- if not B_IS_2D %} + {{ assign_maybe_constexpr("B_STRIDE_G", stride("b_ptr", 0)) }} + B_STRIDE_G = {{stride("b_ptr", 0)}} +{%- if SCALED %} + {{ assign_maybe_constexpr("SCALE_B_STRIDE_G", stride("scale_b_ptr", 0)) }} +{%- endif %} +{%- endif %} + +{%- if USE_TMA_LOAD %} +{%- if USE_EXPERIMENTAL_MAKE_TENSOR_DESCRIPTOR %} + a_desc = tl._experimental_make_tensor_descriptor( +{%- else %} + a_desc = tl.make_tensor_descriptor( +{%- endif %} + a_ptr, +{%- if A_IS_2D %} +{%- if A_IS_K_MAJOR %} + shape=[M, K], + strides=[A_STRIDE_M, A_STRIDE_K], + block_shape=[BLOCK_M, BLOCK_K], +{%- else %} + shape=[K, M], + strides=[A_STRIDE_K, A_STRIDE_M], + block_shape=[BLOCK_K, BLOCK_M], +{%- endif %} +{%- else %} +{%- if A_IS_K_MAJOR %} + shape=[G, M, K], + strides=[A_STRIDE_G, A_STRIDE_M, A_STRIDE_K], + block_shape=[1, BLOCK_M, BLOCK_K], +{%- else %} + shape=[G, K, M], + strides=[A_STRIDE_G, A_STRIDE_K, A_STRIDE_M], + block_shape=[1, BLOCK_K, BLOCK_M], +{%- endif %} +{%- endif %} + ) + +{%- if USE_EXPERIMENTAL_MAKE_TENSOR_DESCRIPTOR %} + b_desc = tl._experimental_make_tensor_descriptor( +{%- else %} + b_desc = tl.make_tensor_descriptor( +{%- endif %} + b_ptr, +{%- if B_IS_2D %} +{%- if B_IS_K_MAJOR %} + shape=[N, K], + strides=[B_STRIDE_N, B_STRIDE_K], + block_shape=[BLOCK_N, BLOCK_K], +{%- else %} + shape=[K, N], + strides=[B_STRIDE_K, B_STRIDE_N], + block_shape=[BLOCK_K, BLOCK_N], +{%- endif %} +{%- else %} +{%- if B_IS_K_MAJOR %} + shape=[G, N, K], + strides=[B_STRIDE_G, B_STRIDE_N, B_STRIDE_K], + block_shape=[1, BLOCK_N, BLOCK_K], +{%- else %} + shape=[G, K, N], + strides=[B_STRIDE_G, B_STRIDE_K, B_STRIDE_N], + block_shape=[1, BLOCK_K, BLOCK_N], +{%- endif %} +{%- endif %} + ) +{%- endif %} + +{%- if M_IS_VARYING %} + m_end_offset = 0 +{%- endif %} +{%- if N_IS_VARYING %} + n_end_offset = 0 +{%- endif %} +{%- if K_IS_VARYING %} + k_end_offset = 0 +{%- endif %} + iterated_tiles = 0 + for g in tl.range(G): +{%- if M_IS_VARYING %} + # Move across groups + m_start_offset = m_end_offset + m_end_offset = tl.load(offsets_ptr + g) + m_size = m_end_offset - m_start_offset +{%- if SCALED %} + m_scale_start_offset = m_start_offset +{%- endif %} +{%- else %} + m_start_offset = 0 + m_size = M +{%- if SCALED %} + m_scale_start_offset = g * M +{%- endif %} +{%- endif %} + +{%- if N_IS_VARYING %} + # Move across groups + n_start_offset = n_end_offset + n_end_offset = tl.load(offsets_ptr + g) + n_size = n_end_offset - n_start_offset +{%- if SCALED %} + n_scale_start_offset = n_start_offset +{%- endif %} +{%- else %} + n_start_offset = 0 + n_size = N +{%- if SCALED %} + n_scale_start_offset = g * N +{%- endif %} +{%- endif %} + + if m_size > 0 and n_size > 0: +{%- if K_IS_VARYING %} + # Move across groups + k_start_offset = k_end_offset + k_end_offset = tl.load(offsets_ptr + g) + k_size = k_end_offset - k_start_offset +{%- else %} + k_start_offset = 0 + k_size = K +{%- endif %} + + num_m_tiles = tl.cdiv(m_size, BLOCK_M) + num_n_tiles = tl.cdiv(n_size, BLOCK_N) + num_tiles = num_m_tiles * num_n_tiles + + # Move across tiles + while tidx >= iterated_tiles and tidx < iterated_tiles + num_tiles: + gidx = tidx - iterated_tiles + # Split M first and N second. + tile_m_idx = gidx % num_m_tiles + tile_n_idx = gidx // num_m_tiles + + accumulator = tl.zeros((BLOCK_M, BLOCK_N), dtype=tl.float32) + +{%- if USE_TMA_LOAD %} + m_tile_offset = tile_m_idx * BLOCK_M + n_tile_offset = tile_n_idx * BLOCK_N + m_offset = (m_start_offset + m_tile_offset).to(tl.int32) + n_offset = (n_start_offset + n_tile_offset).to(tl.int32) + + k_block_offset = 0 + for k in range(k_size // BLOCK_K): + k_offset = k_start_offset + k_block_offset + a, b = do_tma_loads( + g, a_desc, b_desc, m_offset, n_offset, k_offset, + BLOCK_M, BLOCK_N, BLOCK_K + ) + accumulator = do_mma(a, b, accumulator) + k_block_offset += BLOCK_K + + if k_size % BLOCK_K != 0: + k_offset = k_start_offset + k_block_offset + a, b = do_tma_loads( + g, a_desc, b_desc, m_offset, n_offset, k_offset, + BLOCK_M, BLOCK_N, BLOCK_K + ) +{%- if K_IS_VARYING %} + group_offs = k_block_offset + tl.arange(0, BLOCK_K) + k_mask = group_offs < k_size +{%- if A_IS_K_MAJOR %} + a = tl.where(k_mask[None, :], a, 0) +{%- else %} + a = tl.where(k_mask[:, None], a, 0) +{%- endif %} +{%- if B_IS_K_MAJOR %} + b = tl.where(k_mask[None, :], b, 0) +{%- else %} + b = tl.where(k_mask[:, None], b, 0) +{%- endif %} +{%- endif %} + accumulator = do_mma(a, b, accumulator) +{%- else %} + offs_am = tile_m_idx * BLOCK_M + tl.arange(0, BLOCK_M) + offs_bn = tile_n_idx * BLOCK_N + tl.arange(0, BLOCK_N) + for k_block_offset in range(0, k_size, BLOCK_K): + block_offs_k = k_block_offset + tl.arange(0, BLOCK_K) + offs_k = block_offs_k + k_start_offset + a_ptrs = ( + a_ptr +{%- if not A_IS_2D %} + + g * A_STRIDE_G +{%- endif %} + + (m_start_offset + offs_am[:, None]) * A_STRIDE_M + + offs_k[None, :] * A_STRIDE_K + ) + b_ptrs = ( + b_ptr +{%- if not B_IS_2D %} + + g * B_STRIDE_G +{%- endif %} + + (n_start_offset + offs_bn[:, None]) * B_STRIDE_N + + offs_k[None, :] * B_STRIDE_K + ) + a_mask = (offs_am[:, None] < m_size) & (block_offs_k[None, :] < k_size) + b_mask = (offs_bn[:, None] < n_size) & (block_offs_k[None, :] < k_size) + a = tl.load(a_ptrs, mask=a_mask, other=tl.zeros((), dtype=a_ptrs.dtype.element_ty)) + b = tl.load(b_ptrs, mask=b_mask, other=tl.zeros((), dtype=b_ptrs.dtype.element_ty)) +{%- if USE_FAST_ACCUM %} + accumulator = tl.dot(a, b.T, accumulator) +{%- else %} + accumulator += tl.dot(a, b.T) +{%- endif %} + a_ptrs += BLOCK_K + b_ptrs += BLOCK_K +{%- endif %} + + offs_am = tile_m_idx * BLOCK_M + tl.arange(0, BLOCK_M) + offs_bn = tile_n_idx * BLOCK_N + tl.arange(0, BLOCK_N) +{%- if SCALED %} + scale_a = tl.load( + scale_a_ptr +{%- if A_IS_2D %} + + m_scale_start_offset +{%- else %} + + g * SCALE_A_STRIDE_G +{%- endif %} + + offs_am[:, None], + mask=offs_am[:, None] < m_size, + other=tl.zeros((), dtype=scale_a_ptr.dtype.element_ty), + ) + scale_b = tl.load( + scale_b_ptr +{%- if B_IS_2D %} + + n_scale_start_offset +{%- else %} + + g * SCALE_B_STRIDE_G +{%- endif %} + + offs_bn[None, :], + mask=offs_bn[None, :] < n_size, + other=tl.zeros((), dtype=scale_b_ptr.dtype.element_ty), + ) + c = accumulator.to(tl.float32) * scale_a * scale_b +{%- else %} + c = accumulator.to(tl.float32) +{%- endif %} + +{%- if M_IS_VARYING %} + idx_m = (m_start_offset + offs_am[:, None]) +{%- else %} + idx_m = offs_am[:, None] +{%- endif %} +{%- if N_IS_VARYING %} + idx_n = (n_start_offset + offs_bn[None, :]) +{%- else %} + idx_n = offs_bn[None, :] +{%- endif %} + mask = (offs_am[:, None] < m_size) & (offs_bn[None, :] < n_size) +{%- if M_IS_VARYING or N_IS_VARYING %} + {{store_output(("idx_m", "idx_n"), "c", "mask", indent_width=16, val_shape=("BLOCK_M", "BLOCK_N"))}} +{%- else %} + {{store_output(("g", "idx_m", "idx_n"), "c", "mask", indent_width=16, val_shape=("BLOCK_M", "BLOCK_N"))}} +{%- endif %} + tidx += NUM_SMS + + iterated_tiles += num_tiles +""" + + +triton_grouped_mm_template = TritonTemplate( + name="grouped_mm", + grid=persistent_grouped_mm_grid, + source=triton_grouped_mm_source, +) + +triton_scaled_grouped_mm_template = TritonTemplate( + name="scaled_grouped_mm", + grid=persistent_grouped_mm_grid, + source=triton_grouped_mm_source, +) + +cutedsl_grouped_mm_template = CuteDSLTemplate( + name="grouped_gemm_cutedsl", + source=load_kernel_template("cutedsl_mm_grouped"), +) + + +def grouped_mm_args( + mat1: TensorBox, + mat2: TensorBox, + offs: Optional[TensorBox], + layout=None, + out_dtype=None, +): + mat1, mat2 = realize_inputs(mat1, mat2) + if offs is not None: + realize_inputs(offs) + mat1_size = mat1.get_size() + mat2_size = mat2.get_size() + + m1dim, m2dim = len(mat1_size), len(mat2_size) + + assert m1dim == 2 or m1dim == 3 + assert m2dim == 2 or m2dim == 3 + + if layout is None: + from torch._inductor.ir import FixedLayout + + if out_dtype is None: + out_dtype = mat1.get_dtype() + alignment = 16 // out_dtype.itemsize + + if m1dim == 2: + if m2dim == 2: + assert offs is not None + out_size = [offs.get_size()[0], mat1_size[0], mat2_size[1]] + else: + out_size = [mat1_size[0], mat2_size[-1]] + else: + if m2dim == 2: + out_size = [mat1_size[1], mat2_size[1]] + else: + out_size = [mat1_size[0], mat1_size[1], mat2_size[-1]] + size_padded = (out_size[-1] + alignment - 1) // alignment * alignment + if len(out_size) == 2: + out_stride = [size_padded, 1] + else: + out_stride = [out_size[1] * size_padded, size_padded, 1] + + layout = FixedLayout( + mat1.get_device(), + out_dtype, + out_size, + out_stride, + ) + else: + assert out_dtype is None, "out_dtype is ignored if layout is specified." + + return (mat1_size, mat2_size, layout, mat1, mat2, offs) + + +aten__grouped_mm = ExternKernelChoice( + torch._grouped_mm, + "at::_grouped_mm", + op_overload=aten._grouped_mm.default, + has_out_variant=False, +) + + +aten__scaled_grouped_mm = ExternKernelChoice( + torch._scaled_grouped_mm, + "at::_scaled_grouped_mm", + op_overload=aten._scaled_grouped_mm.default, + has_out_variant=False, +) + + +def can_use_triton_kernel( + mat_a: TensorBox, + mat_b: TensorBox, + offs: Optional[TensorBox], + bias: Optional[TensorBox], + scale_result: Optional[TensorBox], +) -> bool: + if not ( + torch.cuda.is_available() + and torch.cuda.get_device_capability() >= (9, 0) + and not torch.version.hip + ): + return False + if not has_triton(): + return False + + # The _grouped_mm()/_scaled_grouped_mm() operator do not support + # bias nor scale_result yet. + if bias is not None: + return False + if scale_result is not None: + return False + + if len(mat_a.get_size()) == 2 or len(mat_b.get_size()) == 2: + return offs is not None + else: + return offs is None + + +def create_offsets(x, m1_size, m2_size, offs_size): + m1_is_2d = len(m1_size) == 2 + m2_is_2d = len(m2_size) == 2 + if m1_is_2d: + if m2_is_2d: + k = V.graph.sizevars.size_hint(m1_size[1]) + noffs = V.graph.sizevars.size_hint(offs_size[0]) + step = k / noffs + return torch.linspace( + step, k, noffs, dtype=x.get_dtype(), device=x.get_device() + ) + + else: + m = V.graph.sizevars.size_hint(m1_size[0]) + noffs = V.graph.sizevars.size_hint(offs_size[0]) + step = m / noffs + return torch.linspace( + step, m, noffs, dtype=x.get_dtype(), device=x.get_device() + ) + else: + if m2_is_2d: + n = V.graph.sizevars.size_hint(m2_size[0]) + noffs = V.graph.sizevars.size_hint(offs_size[0]) + step = n / noffs + return torch.linspace( + step, n, noffs, dtype=x.get_dtype(), device=x.get_device() + ) + else: + return None + + +def _tuned_grouped_mm_common( + operator_name: str, + algorithm_name: str, + extern_kernel_choice: ExternKernelChoice, + kernel_template: TritonTemplate, + mat_a: TensorBox, + mat_b: TensorBox, + scale_a: Optional[TensorBox] = None, + scale_b: Optional[TensorBox] = None, + offs: Optional[TensorBox] = None, + bias: Optional[TensorBox] = None, + scale_result: Optional[TensorBox] = None, + out_dtype: Optional[torch.dtype] = None, + use_fast_accum: Optional[bool] = None, + layout: Optional[Layout] = None, +) -> TensorBox: + assert (scale_a is None) == (scale_b is None) + assert scale_result is None or scale_a is not None + + m1_size, m2_size, layout, mat_a, mat_b, offs = grouped_mm_args( + mat_a, mat_b, offs, layout=layout, out_dtype=out_dtype + ) + counters["aten_mm_info"][operator_name] += 1 + log_message = f"Tuned {operator_name}: mat1_shape=%s, mat2_shape=%s, mat1_dtype=%s, mat2_dtype=%s, output_layout=%s" + log.info( + log_message, + m1_size, + m2_size, + mat_a.get_dtype(), + mat_b.get_dtype(), + layout, + ) + + if scale_a is not None and scale_b is not None: + check_supported_striding(mat_a, mat_b) + + # workaround for Inductor not supporting optional tensor input arguments + input_nodes: list[Any] = [mat_a, mat_b] + if scale_a is not None: + input_nodes.append(realize_inputs(scale_a)) + if scale_b is not None: + input_nodes.append(realize_inputs(scale_b)) + if offs is not None: + input_nodes.append(realize_inputs(offs)) + + if use_fast_accum is None: + aten_choice = extern_kernel_choice.bind( + input_nodes, + layout, + out_dtype=out_dtype, + ) + else: + aten_choice = extern_kernel_choice.bind( + input_nodes, + layout, + out_dtype=out_dtype, + use_fast_accum=use_fast_accum, + ) + if use_fast_accum is None: + use_fast_accum = False + + choices: list[ChoiceCaller] = [] + if use_aten_gemm_kernels(): + choices.append(aten_choice) + + _, is_nonzero = _is_static_problem(layout) + + # Checking only for the equality of corresponding dims of + # multiplicands here, relying on meta function checks for + # everything else. + if len(m1_size) == 2: + if len(m2_size) == 2: + m, k1 = m1_size + k2, _ = m2_size + # pyrefly: ignore [missing-attribute] + g = offs.get_size()[0] + V.graph.sizevars.check_equals(k1, k2) + a_is_2d, b_is_2d = True, True + else: + # pyrefly: ignore [missing-attribute] + g1 = offs.layout.size[0] + m, k1 = m1_size + g2, k2, _ = m2_size + g = V.graph.sizevars.check_equals_and_simplify(g1, g2) + V.graph.sizevars.check_equals(k1, k2) + a_is_2d, b_is_2d = True, False + else: + if len(m2_size) == 2: + # pyrefly: ignore [missing-attribute] + g1 = offs.layout.size[0] + g2, m, k1 = m1_size + k2, _ = m2_size + g = V.graph.sizevars.check_equals_and_simplify(g1, g2) + V.graph.sizevars.check_equals(k1, k2) + a_is_2d, b_is_2d = False, True + else: + g1, m, k1 = m1_size + g2, k2, _ = m2_size + g = V.graph.sizevars.check_equals_and_simplify(g1, g2) + V.graph.sizevars.check_equals(k1, k2) + a_is_2d, b_is_2d = False, False + + if ( + is_nonzero + and use_triton_template(layout) + and can_use_triton_kernel(mat_a, mat_b, offs, bias, scale_result) + ): + scaled = scale_a is not None + + a_is_k_major = mat_a.get_stride()[-1] == 1 + b_is_k_major = mat_b.get_stride()[-2] == 1 + + triton_has_make_tensor_descriptor = hasattr(tl, "make_tensor_descriptor") + triton_has_experimental_make_tensor_descriptor = hasattr( + tl, "_experimental_make_tensor_descriptor" + ) + use_tma_load = ( + triton_has_make_tensor_descriptor + or triton_has_experimental_make_tensor_descriptor + ) + kwargs = { + "SCALED": scaled, + "A_IS_2D": a_is_2d, + "B_IS_2D": b_is_2d, + "A_IS_K_MAJOR": a_is_k_major, + "B_IS_K_MAJOR": b_is_k_major, + "USE_FAST_ACCUM": use_fast_accum, + "NUM_SMS": get_num_sms(), + "USE_TMA_LOAD": use_tma_load, + "USE_EXPERIMENTAL_MAKE_TENSOR_DESCRIPTOR": triton_has_experimental_make_tensor_descriptor, + } + + for config in early_config_prune( + g, m, mat_a.dtype.itemsize, grouped_mm_configs(), kwargs + ): + kernel_template.maybe_append_choice( + choices, + input_nodes=input_nodes, + layout=layout, + num_stages=config.num_stages, + num_warps=config.num_warps, + **kwargs, + **config.kwargs, + ) + + if use_blackwell_cutedsl_grouped_mm( + mat_a, mat_b, layout, a_is_2d, b_is_2d, offs, bias, scale_result + ): + for config in get_groupgemm_configs(): + kwargs = dict( + ACC_DTYPE="cutlass.Float32", + ) + + cutedsl_grouped_mm_template.maybe_append_choice( + choices, + input_nodes=input_nodes, + layout=layout, + **kwargs, + **asdict(config), + ) + + input_gen_fns = { + 4: lambda x: create_offsets( + x, m1_size, m2_size, offs.get_size() if offs is not None else None + ), + } + return autotune_select_algorithm( + algorithm_name, choices, input_nodes, layout, input_gen_fns=input_gen_fns + ) + + +@register_lowering(aten._grouped_mm.default, type_promotion_kind=None) +def tuned_grouped_mm( + mat_a: TensorBox, + mat_b: TensorBox, + offs: Optional[TensorBox] = None, + bias: Optional[TensorBox] = None, + out_dtype: Optional[torch.dtype] = None, + layout: Optional[Layout] = None, +) -> TensorBox: + """Auto-tuning for _grouped_mm() operator.""" + + return _tuned_grouped_mm_common( + "aten._grouped_mm.default", + "grouped_mm", + aten__grouped_mm, + triton_grouped_mm_template, + mat_a, + mat_b, + None, + None, + offs, + bias, + None, + out_dtype, + None, + layout, + ) + + +@register_lowering(aten._scaled_grouped_mm.default, type_promotion_kind=None) +def tuned_scaled_grouped_mm( + mat_a: TensorBox, + mat_b: TensorBox, + scale_a: TensorBox, + scale_b: TensorBox, + offs: Optional[TensorBox] = None, + bias: Optional[TensorBox] = None, + scale_result: Optional[TensorBox] = None, + out_dtype: Optional[torch.dtype] = None, + use_fast_accum: bool = False, + layout: Optional[Layout] = None, +) -> TensorBox: + """Auto-tuning for _scaled_grouped_mm() operator.""" + + # matching _scaled_grouped_mm_cuda Blas.cpp implementation + out_dtype = out_dtype or torch.bfloat16 + + return _tuned_grouped_mm_common( + "aten._scaled_grouped_mm.default", + "scaled_grouped_mm", + aten__scaled_grouped_mm, + triton_scaled_grouped_mm_template, + mat_a, + mat_b, + scale_a, + scale_b, + offs, + bias, + scale_result, + out_dtype, + use_fast_accum, + layout, + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/mm_plus_mm.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/mm_plus_mm.py new file mode 100644 index 0000000000000000000000000000000000000000..aef8dfb2168f4e9f410310f898ff3ae08bae02ee --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel/mm_plus_mm.py @@ -0,0 +1,177 @@ +# mypy: allow-untyped-defs + +import logging +from typing import TYPE_CHECKING, Union + +import torch + +from .. import config as inductor_config +from ..kernel_inputs import MMKernelInputs +from ..lowering import lowerings +from ..select_algorithm import ( + autotune_select_algorithm, + ExternKernelChoice, + TritonTemplate, +) +from ..utils import use_aten_gemm_kernels, use_triton_template +from ..virtualized import V +from .mm_common import mm_args, mm_grid + + +if TYPE_CHECKING: + from torch._inductor.ir import ChoiceCaller + from torch._inductor.select_algorithm import KernelTemplate + +log = logging.getLogger(__name__) + +aten = torch.ops.aten + +aten_mm_plus_mm = ExternKernelChoice( + torch.ops.inductor._mm_plus_mm, "torch::inductor::_mm_plus_mm" +) + +mm_plus_mm_template = TritonTemplate( + name="mm_plus_mm", + grid=mm_grid, + debug=False, + source=r""" +{{def_kernel("A", "B", "C", "D")}} + M = {{size("A", 0)}} + N = {{size("B", 1)}} + K1 = {{size("A", 1)}} + if M * N == 0: + # early exit due to zero-size input(s) + return + # K2 = {{size("C", 1)}} + stride_am = {{stride("A", 0)}} + stride_ak = {{stride("A", 1)}} + stride_bk = {{stride("B", 0)}} + stride_bn = {{stride("B", 1)}} + stride_cm = {{stride("C", 0)}} + stride_ck = {{stride("C", 1)}} + stride_dk = {{stride("D", 0)}} + stride_dn = {{stride("D", 1)}} + + # based on triton.ops.matmul + pid = tl.program_id(0).to(INDEX_DTYPE) + grid_m = (M + BLOCK_M - 1) // BLOCK_M + grid_n = (N + BLOCK_N - 1) // BLOCK_N + + # re-order program ID for better L2 performance + width = GROUP_M * grid_n + group_id = pid // width + group_size = min(grid_m - group_id * GROUP_M, GROUP_M) + pid_m = group_id * GROUP_M + (pid % group_size) + pid_n = (pid % width) // (group_size) + tl.assume(pid_m >= 0) + tl.assume(pid_n >= 0) + + rm = pid_m * BLOCK_M + tl.arange(0, BLOCK_M) + rn = pid_n * BLOCK_N + tl.arange(0, BLOCK_N) + + if (((stride_am == 1 and stride_ak == M) or (stride_am == K1 and stride_ak == 1)) + and ((stride_cm == 1 and stride_ck == M) or (stride_cm == K1 and stride_ck == 1))): + ram = tl.max_contiguous(tl.multiple_of(rm % M, BLOCK_M), BLOCK_M) + else: + ram = rm % M + + if (((stride_bk == 1 and stride_bn == K1) or (stride_bk == N and stride_bn == 1)) + and ((stride_dk == 1 and stride_dn == K1) or (stride_dk == N and stride_dn == 1))): + rbn = tl.max_contiguous(tl.multiple_of(rn % N, BLOCK_N), BLOCK_N) + else: + rbn = rn % N + + rk = tl.arange(0, BLOCK_K) + A = A + (ram[:, None] * stride_am + rk[None, :] * stride_ak) + B = B + (rk[:, None] * stride_bk + rbn[None, :] * stride_bn) + C = C + (ram[:, None] * stride_cm + rk[None, :] * stride_ck) + D = D + (rk[:, None] * stride_dk + rbn[None, :] * stride_dn) + + acc = tl.zeros((BLOCK_M, BLOCK_N), dtype=ACC_TYPE) + for k1 in range(K1, 0, -BLOCK_K): + # First matmul with A @ B + if EVEN_K: + a = tl.load(A) + b = tl.load(B) + else: + a = tl.load(A, mask=rk[None, :] < k1, other=0.) + b = tl.load(B, mask=rk[:, None] < k1, other=0.) + acc += tl.dot(a, b, allow_tf32=ALLOW_TF32) + A += BLOCK_K * stride_ak + B += BLOCK_K * stride_bk + + for k2 in range(K1, 0, -BLOCK_K): + + # Second matmul with C @ D + if EVEN_K: + c = tl.load(C) + d = tl.load(D) + else: + c = tl.load(C, mask=rk[None, :] < k2, other=0.) + d = tl.load(D, mask=rk[:, None] < k2, other=0.) + acc += tl.dot(c, d, allow_tf32=ALLOW_TF32) + C += BLOCK_K * stride_ck + D += BLOCK_K * stride_dk + + + idx_m = rm[:, None] + idx_n = rn[None, :] + mask = (idx_m < M) & (idx_n < N) + + # inductor generates a suffix + {{store_output(("idx_m", "idx_n"), "acc", "mask", val_shape=("BLOCK_M", "BLOCK_N"))}} +""", + cache_codegen_enabled_for_template=True, +) + + +def tuned_mm_plus_mm(mat1, mat2, mat3, mat4, *, layout=None): + """ + Computes mm(mat1, mat2) + mm(mat3, mat4) + """ + # TODO(coconutruben): integrate into MMKernelInputs when all callsites use that + m1, n1, k1, layout1, mat1, mat2 = mm_args(mat1, mat2, layout=layout) + m2, n2, _, layout2, mat3, mat4 = mm_args(mat3, mat4, layout=layout) + + # Optimization is optional, because we can always just not do the fusion + if ( + m1 * n1 == 0 + or m2 * n2 == 0 + or not V.graph.sizevars.statically_known_list_equals( + mat1.get_size(), mat3.get_size() + ) + or not V.graph.sizevars.statically_known_list_equals( + mat2.get_size(), mat4.get_size() + ) + or inductor_config.triton.native_matmul + ): + # TODO(jansel): support different K values when this is fixed: + # https://github.com/triton-lang/triton/issues/967 + return lowerings[aten.add]( + lowerings[aten.mm](mat1, mat2), lowerings[aten.mm](mat3, mat4) + ) + + # Create MMKernelInputs for MM Plus MM (matrices are at indices 0, 1 for first pair) + # Note: This is a special case with 4 matrices, but we use the first pair for M, N, K extraction + kernel_inputs = MMKernelInputs([mat1, mat2, mat3, mat4], mat1_idx=0, mat2_idx=1) + + assert layout1 == layout2 + # options to tune from + choices: list[ChoiceCaller] = [] + + # Collect all templates for unified call + templates_to_use: list[Union[ExternKernelChoice, KernelTemplate]] = [] + if use_aten_gemm_kernels(): + templates_to_use.append(aten_mm_plus_mm) + + if use_triton_template(layout1, check_max_autotune=False): + templates_to_use.append(mm_plus_mm_template) + + # Single unified call for all templates + choices.extend( + V.choices.get_template_configs(kernel_inputs, templates_to_use, "mm_plus_mm") + ) + + return autotune_select_algorithm( + "mm_plus_mm", choices, kernel_inputs.nodes(), layout1 + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel_inputs.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel_inputs.py new file mode 100644 index 0000000000000000000000000000000000000000..c579cf756577282a3fb498c342e9385079eb8947 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel_inputs.py @@ -0,0 +1,338 @@ +from __future__ import annotations + +from abc import ABC, abstractmethod +from typing import Any, Optional, TYPE_CHECKING, Union + +import torch +import torch._inductor.config +from torch._inductor import ir +from torch._inductor.virtualized import V + +from .ir import FixedLayout, FlexibleLayout, Layout + + +if TYPE_CHECKING: + from collections.abc import Sequence + + import sympy + + +class KernelInputs(ABC): + """ + Class to store and provide access to input nodes for kernels. + This class takes in a tuple of input nodes and provides methods to access + information about these nodes, such as their device type and device. + """ + + def __init__( + self, + input_nodes: list[Any], + scalars: Optional[dict[str, Union[float, int]]] = None, + out_dtype: Optional[torch.dtype] = None, + ): + """ + Initialize with a tuple of input nodes. + + Args: + input_nodes: A tuple of input nodes to store + out_dtype: Optional output dtype to store + """ + self._input_nodes = input_nodes + self._device_name: Optional[str] = None + self._scalars = scalars if scalars is not None else {} + self._out_dtype = out_dtype + assert len(input_nodes) > 0, "Expected at least one input node" + + def nodes(self, reorder: Optional[Sequence[int]] = None) -> list[Any]: + """ + Return the stored input nodes, optionally reordered. + + Args: + reorder: Optional sequence of indices to reorder the nodes. + For example, (2, 0, 1) would return nodes in that order. + + Returns: + The tuple of input nodes, optionally reordered + """ + if reorder is None: + return self._input_nodes + assert len(self._input_nodes) == len(reorder), ( + f"Reorder length mismatch: {len(self._input_nodes)} vs {len(reorder)}" + ) + return [self._input_nodes[i] for i in reorder] + + @property + def count(self) -> int: + """ + Get the number of input nodes. + + Returns: + The number of input nodes + """ + return len(self._input_nodes) + + @property + def device_type(self) -> Optional[str]: + """ + Get the device type of the first node. + + Returns: + The device type (e.g., 'cuda', 'cpu') + """ + + return ir.get_device_type(self._input_nodes[0]) + + def device(self) -> torch.device: + """ + Get the device of the first node. + + Returns: + The device of the first node + """ + return self._input_nodes[0].get_device() + + def device_name(self) -> Optional[str]: + """ + Get the device name information. + + Returns: + A tuple of (gpu_name, vendor, model) + """ + if self._device_name is None: + device = self.device() + if self.device_type == "cuda": + device_properties = torch.cuda.get_device_properties(device) + self._device_name = device_properties.gcnArchName + return self._device_name + + def shapes_symbolic(self) -> tuple[tuple[Any, ...], ...]: + """ + Get the symbolic shapes of all input nodes. + + Returns: + A tuple of shape tuples for each input node + """ + return tuple(node.get_size() for node in self._input_nodes) + + def shapes_hinted(self) -> tuple[tuple[int, ...], ...]: + """ + Get the size hints for shapes of all input nodes. + + Returns: + A tuple of shape tuples with integer hints for each input node + """ + return tuple( + V.graph.sizevars.size_hints( + node.get_size(), + fallback=torch._inductor.config.unbacked_symint_fallback, + ) + for node in self._input_nodes + ) + + def strides_symbolic(self) -> tuple[tuple[sympy.Integer, ...], ...]: + """ + Get the symbolic strides of all input nodes. + + Returns: + A tuple of stride tuples for each input node + """ + return tuple(node.get_stride() for node in self._input_nodes) + + def strides_hinted(self) -> tuple[tuple[int, ...], ...]: + """ + Get the size hints for strides of all input nodes. + + Returns: + A tuple of stride tuples with integer hints for each input node + """ + return tuple( + V.graph.sizevars.size_hints( + node.get_stride(), + fallback=torch._inductor.config.unbacked_symint_fallback, + ) + for node in self._input_nodes + ) + + def dtypes(self) -> tuple[torch.dtype, ...]: + """ + Get the dtypes of all input nodes. + + Returns: + A tuple of dtypes for each input node + """ + return tuple(node.get_dtype() for node in self._input_nodes) + + def dtype(self, idx: int = 0) -> torch.dtype: + """ + Get the dtype of a specific input node. + + Args: + idx: Index of the node to get the dtype from (default: 0) + + Returns: + The dtype of the specified input node + """ + return self._input_nodes[idx].get_dtype() + + @abstractmethod + def out_dtype(self) -> torch.dtype: + """ + Get the output dtype, whether passed in or inferred from the nodes + + Returns: + The output dtype + """ + + def get_scalar(self, name: str) -> Union[float, int]: + """ + Get the scalar value for a given name. + + Args: + name: Name of the scalar to get + + Returns: + The scalar value + """ + assert name in self._scalars, f"Scalar {name} not found, but required" + return self._scalars[name] + + @abstractmethod + def output_layout(self, flexible: bool = True) -> Layout: + """ + Abstract method to handle output layout generation. + + Args: + out_dtype: Optional output dtype. If not provided, infer from inputs + flexible: If True, return FlexibleLayout, otherwise FixedLayout + """ + + +class MMKernelInputs(KernelInputs): + """ + Specialized KernelInputs for matrix multiplication operations. + Provides additional methods to access M, N, K dimensions. + """ + + def __init__( + self, + input_nodes: list[Any], + scalars: Optional[dict[str, Union[float, int]]] = None, + out_dtype: Optional[torch.dtype] = None, + mat1_idx: int = -2, + mat2_idx: int = -1, + ): + """ + Initialize with a tuple of input nodes. + + By default, we assume the last 2 input nodes are mat1 and mat2, but + the caller can adjust when necessary + """ + super().__init__(input_nodes, scalars, out_dtype) + # for mm, we need at least 2 nodes, and we need to know which nodes + # are the main matrixes e.g. addmm is (bias, mat1, mat2) whereas others + # might be (mat1, mat2, scale), etc. + assert len(self._input_nodes) >= 2, "Expected at least 2 input nodes" + + # Adjust assertions to handle negative indices + m1_idx, m2_idx = mat1_idx, mat2_idx + if mat1_idx < 0: + m1_idx += len(input_nodes) + if mat2_idx < 0: + m2_idx += len(input_nodes) + + assert 0 <= m1_idx < len(input_nodes), f"Invalid mat1_idx: {mat1_idx}" + assert 0 <= m1_idx < len(input_nodes), f"Invalid mat2_idx: {mat2_idx}" + + self._mat1_idx = mat1_idx + self._mat2_idx = mat2_idx + + def mnk_symbolic( + self, + ) -> tuple[sympy.Integer, sympy.Integer, sympy.Integer]: + """ + Get the symbolic M, N, K dimensions for matrix multiplication. + Handles both 2D (MM) and 3D (BMM) tensors. + + M is extracted from the second-to-last dimension of the first operand (mat1). + N is extracted from the last dimension of the second operand (mat2). + K is extracted from the last dimension of the first operand (mat1). + + Returns: + A tuple of (M, N, K) dimensions + """ + mat1 = self.nodes()[self._mat1_idx] + mat2 = self.nodes()[self._mat2_idx] + + m = mat1.get_size()[-2] # M from second-to-last dimension of mat1 + k = mat1.get_size()[-1] # K from last dimension of mat1 + n = mat2.get_size()[-1] # N from last dimension of mat2 + + # Ensure K dimensions match between operands + k0 = mat2.get_size()[-2] # K from second-to-last dimension of mat2 + V.graph.sizevars.check_equals(k, k0) + return (m, n, k) + + def out_dtype(self) -> torch.dtype: + """ + Get the output dtype, whether passed in or inferred from the nodes + + Returns: + The output dtype + """ + if self._out_dtype is not None: + return self._out_dtype + return self.mat1mat2()[0].get_dtype() + + def output_layout(self, flexible: bool = True) -> Layout: + """ + Handle output layout generation for matrix multiplication. + + Args: + out_dtype: Optional output dtype. If not provided, infer from inputs + flexible: If True, return FlexibleLayout, otherwise FixedLayout + """ + mat1, mat2 = self.mat1mat2() + out_dtype = self.out_dtype() + # NOTE: taken from mm_common.mm_args + *b1, m, k1 = mat1.get_size() + *b2, k2, n = mat2.get_size() + b = [V.graph.sizevars.check_equals_and_simplify(a, b) for a, b in zip(b1, b2)] + size = [*b, m, n] + if flexible: + return FlexibleLayout(self.device(), out_dtype, size) + else: + return FixedLayout(self.device(), out_dtype, size) + + def mat1mat2(self) -> tuple[Any, Any]: + """ + Get the mat1 and mat2 nodes. + + Returns: + A tuple of (mat1, mat2) nodes + """ + nodes = self.nodes() + return nodes[self._mat1_idx], nodes[self._mat2_idx] + + def mnk_hinted(self) -> tuple[int, int, int]: + """ + Get the hinted M, N, K dimensions for matrix multiplication. + Handles both 2D (MM) and 3D (BMM) tensors. + + Uses shapes_hinted from the base class to get integer hints for dimensions. + + Returns: + A tuple of (M, N, K) dimensions as integers + """ + hinted_shapes = self.shapes_hinted() + mat1_shape = hinted_shapes[self._mat1_idx] + mat2_shape = hinted_shapes[self._mat2_idx] + + m = mat1_shape[-2] # M from second-to-last dimension of mat1 + k = mat1_shape[-1] # K from last dimension of mat1 + n = mat2_shape[-1] # N from last dimension of mat2 + + # Ensure K dimensions match between operands + k_check = mat2_shape[-2] # K from second-to-last dimension of mat2 + assert k == k_check, f"K dimensions don't match: {k} vs {k_check}" + + return (m, n, k) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel_template_choice.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel_template_choice.py new file mode 100644 index 0000000000000000000000000000000000000000..8f90157c6c1a0de9ef21dd044cdc40f5c8f82e4e --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/kernel_template_choice.py @@ -0,0 +1,99 @@ +from __future__ import annotations + +from typing import Any, Optional, TYPE_CHECKING, Union + +from .template_heuristics.params import DictKernelTemplateParams + + +if TYPE_CHECKING: + from collections.abc import Generator + + from .codegen.common import KernelTemplate + from .ir import ChoiceCaller, Layout + from .kernel_inputs import KernelInputs + from .select_algorithm import ExternKernelChoice + from .template_heuristics.params import KernelTemplateParams + + +class KernelTemplateChoice: + """ + A class that encapsulates all the components needed to create a ChoiceCaller from a template. + + This class implements lazy evaluation for the choice property - the actual ChoiceCaller + is only created when first accessed via the choice property. + """ + + def __init__( + self, + template: Union[KernelTemplate, ExternKernelChoice], + params: KernelTemplateParams, + extra_kwargs: dict[str, Any], + layout: Layout, + inputs: KernelInputs, + ): + self.template = template + self.params = params + self.extra_kwargs = extra_kwargs + self.layout = layout + self.inputs = inputs + self.annotations: dict[str, Any] = {"ktc": self} + + @property + def choice(self) -> Optional[ChoiceCaller]: + """ + Lazily evaluate and return the ChoiceCaller for this template choice. + + On first access, calls template.choice_or_none() with the stored parameters. + If successful, caches and returns the ChoiceCaller. If it fails, caches + and returns None. Subsequent accesses return the cached value. + + Returns: + ChoiceCaller if the template choice succeeds, None otherwise + """ + if not hasattr(self, "_choice"): + # First time accessing choice - try to generate it + kwargs = self.params.to_kwargs() + self._choice = self.template.choice_or_none( + **kwargs, + **self.extra_kwargs, + layout=self.layout, + input_nodes=self.inputs.nodes(), + ) + if self._choice is not None: + self._choice.annotations = self.annotations + return self._choice + + +def make_ktc_generator( + template: Union[KernelTemplate, ExternKernelChoice], + cs: Generator[KernelTemplateParams, None, None], + extra_kwargs: dict[str, Any], + overrides: dict[str, Any], + layout: Layout, + inputs: KernelInputs, +) -> Generator[KernelTemplateChoice, None, None]: + """ + Create a generator of KernelTemplateChoice objects for a given template. + + Args: + template: The template object (KernelTemplate or ExternKernelChoice) + cs: Generator of KernelTemplateParams from template heuristic + overrides: Override kwargs for the template + layout: Layout value for the template + inputs: KernelInputs for the op + + Yields: + KernelTemplateChoice objects + """ + for params in cs: + # Apply overrides to params + base_kwargs = params.to_kwargs() + final_kwargs = {**base_kwargs, **overrides} + final_params = DictKernelTemplateParams(final_kwargs) + yield KernelTemplateChoice( + template=template, + params=final_params, + extra_kwargs=extra_kwargs, + layout=layout, + inputs=inputs, + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/loop_body.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/loop_body.py new file mode 100644 index 0000000000000000000000000000000000000000..3921aa955a8360e9f6e53d121ad4dfcc35632e5c --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/loop_body.py @@ -0,0 +1,789 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import collections +import functools +import itertools +import re +from enum import auto, Enum +from typing import Any, NamedTuple, Optional, TYPE_CHECKING, TypeVar + +import sympy + +import torch.fx +from torch._dynamo.utils import identity +from torch.fx.proxy import Scope, TracerBase +from torch.utils._sympy.symbol import SymT + +from . import config, dependencies +from .codegen.common import index_prevent_reordering +from .ops_handler import DefaultHandler, OpsHandler, WrapperHandler +from .utils import ( + cache_on_self, + reduction_num_outputs, + sympy_index_symbol_with_prefix, + sympy_subs, +) +from .virtualized import ops, V + + +if TYPE_CHECKING: + from collections.abc import Callable, Sequence + + +T = TypeVar("T") + + +class InterpreterShim(torch.fx.Interpreter): + @staticmethod + @functools.cache + def _dummy_gm(): + return torch.fx.symbolic_trace(identity) + + def __init__(self, graph, submodules): + # call super() with a placeholder to avoid constructing a + # GraphModule which is very expensive (it does codegen). + super().__init__(self._dummy_gm(), garbage_collect_values=False) + self.module = self # type: ignore[assignment] + self.graph = graph + self.submodules = submodules + self.extra_traceback = False + self.fetch_attr = submodules.__getitem__ # type: ignore[method-assign] + self.current_node = None + + def run_node(self, n: torch.fx.Node) -> Any: + # pyrefly: ignore [bad-assignment] + self.current_node = n + return super().run_node(n) + + def run(self, *args, **kwargs): + with V.set_interpreter_handler(self): + return super().run(*args, **kwargs) + + +# We don't need the nn.Module and constant handling in Tracer +class LightTracer(TracerBase): + def __init__(self): + super().__init__() + self.graph = torch.fx.Graph(tracer_cls=self.__class__) # type: ignore[arg-type] + self.scope = Scope("", None) + self.module_stack = {} # type: ignore[assignment] + self.node_name_to_scope = {} + + +class MemoryEntry(NamedTuple): + index_name: str # LoopBody.indexing_exprs[index_name] + buffer_name: Optional[str] + mode: Optional[str] # V.ops.store(..., mode=mode) + + +class MemoryUsageType(Enum): + # These are 1:1 with the opcode generating the usage + LOAD = auto() + LOAD_SEED = auto() + STORE = auto() + STORE_REDUCTION = auto() + INDEX_EXPR = auto() + CHECK_BOUNDS = auto() + BUCKETIZE = auto() + + +class LoopBody: + """ + Captures the body of a Loops subclass into an FX graph. Persists any + indexing simplifications and makes it easier to analyze loop bodies. + """ + + indexing_exprs: dict[str, sympy.Expr] + submodules: dict[str, Any] + subblocks: dict[str, LoopBodyBlock] + indirect_vars: list[sympy.Symbol] + indirect_var_ranges: dict[sympy.Symbol, sympy.Expr] + root_block: LoopBodyBlock + memory_usage: dict[MemoryUsageType, list[MemoryEntry]] + op_counts: collections.Counter[str] + + # defined only temporarily + indexing_exprs_name: dict[sympy.Expr, str] + + def __init__( + self, + fn, + args, + var_ranges, + iter_vars, + reduce_vars, + allow_same_symbol_in_index=False, + ): + super().__init__() + + _flat_sizes = tuple(var_ranges.values()) + self.sizes = ( + _flat_sizes[: len(iter_vars)], + _flat_sizes[len(iter_vars) :], + ) + + self.iter_vars = iter_vars + self.reduce_vars = reduce_vars + self.var_ranges = var_ranges + + if isinstance(fn, LoopBody): + self._init_with_copy(fn, args, allow_same_symbol_in_index) + else: + self._init_with_tracing(fn, args) + + self.indexing = None + + def get_original_num_rdims(self) -> int: + assert self.has_partial_accumulate + node = self.root_block.graph.find_nodes( + op="call_method", target="partial_accumulate" + )[0] + meta = node.args[-1] + return meta["num_reduction_dims"] + + def extract_pw_from_reduction(self): + self.root_block = self.root_block.extract_pw_from_reduction() + self.has_partial_accumulate = True + self.iter_vars = self.iter_vars + self.reduce_vars + self.reduce_vars = [] + self.sizes = (self.sizes[0] + self.sizes[1], tuple()) + return self + + def _init_with_tracing(self, fn, args): + """Do an FX trace of an arbitrary callable to construct self""" + self.indexing_exprs = {} + self.indexing_exprs_name = {} + self.submodules = {"get_index": self.get_index} + self.subblocks = {} + self.indirect_vars = [] + self.indirect_var_ranges: dict[sympy.Symbol, sympy.Expr] = {} + self.memory_usage = {t: [] for t in MemoryUsageType} + self.op_counts = collections.Counter() + self.root_block = LoopBodyBlock(self, fn, args) # traces + self.has_partial_accumulate = self.root_block.graph.find_nodes( + op="call_method", target="partial_accumulate" + ) + del self.indexing_exprs_name # not used after _init_with_tracing + + def _init_with_copy(self, other: LoopBody, args, allow_same_symbol_in_index): + """ + _init_with_tracing() is slow, so this is a fast path in the case + where we are just reordering/merging/splitting the args of an + existing LoopBody. + """ + indexing_exprs = other.indexing_from_args(args, allow_same_symbol_in_index) + self.indexing_exprs = { + name: V.graph.sizevars.simplify_with_ranges(expr, self.var_ranges) + for name, expr in indexing_exprs.items() + } + self.subblocks = {k: v.clone(self) for k, v in other.subblocks.items()} + self.indirect_vars = other.indirect_vars + self.indirect_var_ranges = other.indirect_var_ranges + self.memory_usage = other.memory_usage + self.op_counts = other.op_counts + self.root_block = other.root_block.clone(self) + self.has_partial_accumulate = other.has_partial_accumulate + + submodules = {**other.submodules} + submodules.pop("get_index") + self.submodules = { + "get_index": self.get_index, + **{k: v.clone(self) for k, v in submodules.items()}, # type: ignore[attr-defined] + } + + def has_op(self, name: str): + return self.op_counts.get(name, 0) > 0 + + def merge_loops(self) -> LoopBody: + """ + Merge both iteration and reduction loops and return a new LoopBody. + """ + old_body = self + old_sizes = self.sizes + old_iter_vars, old_reduce_vars = old_body.vars + old_iter_sizes, old_reduce_sizes = old_sizes + + index_exprs = [*old_body.indexing_exprs.values()] + + iter_sizes, iter_reindex, _ = V.graph.sizevars._simplify_loops( + old_iter_vars, + old_iter_sizes, + index_prevent_reordering(index_exprs, old_iter_vars, old_iter_sizes), + ) + + reduce_sizes, reduce_reindex, _ = V.graph.sizevars._simplify_loops( + old_reduce_vars, + old_reduce_sizes, + index_prevent_reordering(index_exprs, old_reduce_vars, old_reduce_sizes), + ) + + if iter_sizes == old_iter_sizes and reduce_sizes == old_reduce_sizes: + return old_body + + ( + ( + iter_vars, + reduce_vars, + ), + var_ranges, + ) = dependencies.index_vars_no_squeeze(iter_sizes, reduce_sizes, prefix="p") + new_body = LoopBody( + old_body, + [iter_reindex(iter_vars), reduce_reindex(reduce_vars)], + var_ranges, + iter_vars, + reduce_vars, + allow_same_symbol_in_index=True, + ) + + return new_body + + def expand_dimension_for_pointwise_node( + self, dimension: int, new_range: int + ) -> LoopBody: + """ + Expand node on `dimension` to `new_range` and rely on index modular to avoid + out-of-boundary access. + """ + + old_body = self + old_sizes = self.sizes + + iter_size, reduce_size = old_sizes + original_range = iter_size[dimension] + new_iter_size = list(iter_size) + new_iter_size[dimension] = new_range + new_sizes = (new_iter_size, reduce_size) + + (iter_vars, reduce_vars), var_ranges = dependencies.index_vars_no_squeeze( + *new_sizes, + prefix="t", # type: ignore[arg-type] + ) + + def new_body(*indices: Sequence[sympy.Expr]) -> Any: + index = [*itertools.chain.from_iterable(indices)] + assert len(index) == len(iter_size) + len(reduce_size) + iter_idx = index[: len(iter_size)] + reduce_idx = index[len(iter_size) :] + + new_iter_idx = list(iter_idx) + new_iter_idx[dimension] = iter_idx[dimension] % original_range + + return old_body(new_iter_idx, reduce_idx) + + loop_body = LoopBody( + new_body, (iter_vars, reduce_vars), var_ranges, iter_vars, reduce_vars + ) + + # use the original symbol prefix so we can do multiple round of reordering + (iter_vars2, reduce_vars2), var_ranges2 = dependencies.index_vars_no_squeeze( + *new_sizes, + prefix="p", # type: ignore[arg-type] + ) + new_body = LoopBody( + loop_body, (iter_vars2, reduce_vars2), var_ranges2, iter_vars2, reduce_vars2 + ) + return new_body + + def reorder_iter_loops(self, new_order) -> LoopBody: + """ + Reorder iteration loops and return a new LoopBody. + """ + from .ir import same_reorder + + old_body = self + old_sizes = self.sizes + assert len(old_sizes[0]) == len(new_order) + reorder_fn = same_reorder(new_order) + + iter_size, reduce_size = old_sizes + new_iter_size = reorder_fn(iter_size) + + new_sizes = (new_iter_size, reduce_size) + + (iter_vars, reduce_vars), var_ranges = dependencies.index_vars_no_squeeze( + *new_sizes, + prefix="p", # type: ignore[arg-type] + ) + + inverse_order = {b: a for a, b in enumerate(new_order)} + inverse_order = [inverse_order[i] for i in range(len(new_order))] + + def new_body(*indices: Sequence[sympy.Expr]) -> Any: + index = [*itertools.chain.from_iterable(indices)] + assert len(index) == len(iter_size) + len(reduce_size) + iter_idx = index[: len(iter_size)] + reduce_idx = index[len(iter_size) :] + iter_idx = [iter_idx[i] for i in inverse_order] + return old_body(iter_idx, reduce_idx, allow_same_symbol_in_index=True) + + return LoopBody( + new_body, + (iter_vars, reduce_vars), + var_ranges, + iter_vars, + reduce_vars, + ) + + @property + def vars(self): + assert self.iter_vars is not None + assert self.reduce_vars is not None + return self.iter_vars, self.reduce_vars + + @cache_on_self + def get_nodes(self): + all_graphs = itertools.chain( + (self.root_block.graph,), + (block.graph for block in self.subblocks.values()), + ) + return [node for graph in all_graphs for node in graph.nodes] + + @cache_on_self + def bounds(self): + # Doing a local import to avoid dumping all the code here + from .bounds import BoundVars + + return BoundVars(self) + + def get_read_expr(self, buffer_name): + # reversed to match old behavior + for entry in reversed(self.memory_usage[MemoryUsageType.LOAD]): + if entry.buffer_name == buffer_name: + return self.indexing_exprs[entry.index_name] + raise KeyError(buffer_name) + + def get_write_expr(self, buffer_name): + for entry in itertools.chain( + self.memory_usage[MemoryUsageType.STORE], + self.memory_usage[MemoryUsageType.STORE_REDUCTION], + ): + if entry.buffer_name == buffer_name: + return self.indexing_exprs[entry.index_name] + raise KeyError(buffer_name) + + def get_read_exprs(self): + return [ + self.indexing_exprs[entry.index_name] + for entry in self.memory_usage[MemoryUsageType.LOAD] + ] + + def get_all_read_expr(self, buffer_name): + # reversed to match old behavior + out = [] + for entry in reversed(self.memory_usage[MemoryUsageType.LOAD]): + if entry.buffer_name == buffer_name: + out.append(self.indexing_exprs[entry.index_name]) + return out + + def get_write_exprs(self): + return [ + self.indexing_exprs[entry.index_name] + for entry in itertools.chain( + self.memory_usage[MemoryUsageType.STORE], + self.memory_usage[MemoryUsageType.STORE_REDUCTION], + ) + ] + + def get_all_write_expr(self, buffer_name): + out = [] + for entry in itertools.chain( + self.memory_usage[MemoryUsageType.STORE], + self.memory_usage[MemoryUsageType.STORE_REDUCTION], + ): + if entry.buffer_name == buffer_name: + out.append(self.indexing_exprs[entry.index_name]) + return out + + def debug_str(self): + lines = [f"var_ranges = {dict(self.var_ranges)}"] + lines.extend([f"{name} = {val}" for name, val in self.indexing_exprs.items()]) + lines.extend( + [ + block.debug_str(name) + for name, block in itertools.chain( + [("body", self.root_block)], self.subblocks.items() + ) + ] + ) + return "\n".join(lines) + + def is_memory_copy(self) -> bool: + """ + True of this contains only a single loads and store. + Note, this could involve a layout change. + """ + return ( + len(self.memory_usage[MemoryUsageType.LOAD]) == 1 + and len(self.memory_usage[MemoryUsageType.STORE]) == 1 + and len(self.submodules) == 1 # get_index + and self.root_block.contains_only_ops(("load", "store")) + ) + + __repr__ = debug_str + + def add_index_expr( + self, + expr: sympy.Expr, + mtype: MemoryUsageType, + buffer_name: Optional[str] = None, + mode: Optional[str] = None, + ): + name = self.indexing_exprs_name.get(expr) + if not name: + name = f"index{len(self.indexing_exprs)}" + self.indexing_exprs_name[expr] = name + self.indexing_exprs[name] = expr + self.memory_usage[mtype].append(MemoryEntry(name, buffer_name, mode)) + return name + + def add_submodule(self, block, prefix): + """Not actually for nn.Modules, but subblocks in generated code are mapped to FX call_module opcodes""" + if prefix[-1].isnumeric() and prefix not in self.submodules: + name = prefix + else: + name = f"{prefix}{len(self.submodules)}" + self.submodules[name] = block + return name + + def add_indirect(self, size): + var = sympy_index_symbol_with_prefix(SymT.INDIRECT, len(self.indirect_vars)) + assert var not in self.indirect_var_ranges + self.indirect_vars.append(var) + self.indirect_var_ranges[var] = size + return var + + def replace_indirect(self, old, new): + """Swap in a variable used in indirect indexing""" + if str(old) == str(new): + return + assert self.indexing is not None + # pyrefly: ignore [bad-assignment] + self.indexing = {k: sympy_subs(v, {old: new}) for k, v in self.indexing.items()} + + def get_index(self, name): + assert self.indexing is not None + return self.indexing[name] + + def indexing_from_args(self, indices, allow_same_symbol_in_index=False): + index = [*itertools.chain.from_iterable(indices)] + assert len(index) == len(self.var_ranges), (index, self.var_ranges) + assert allow_same_symbol_in_index or all( + v not in self.var_ranges for v in index + ), f"{self.var_ranges=}, {indices=}" + + replacements = dict(zip(self.var_ranges.keys(), index)) + return { + name: sympy_subs(expr, replacements) + for name, expr in self.indexing_exprs.items() + } + + def __call__(self, *indices, allow_same_symbol_in_index=False): + self.indexing = self.indexing_from_args(indices, allow_same_symbol_in_index) + result = self.root_block() + self.indexing = None + return result + + def bind_set_indirect_shim(self, var, size, check, wrap_neg): + def set_indirect(new_var): + self.replace_indirect( + var, V.ops.indirect_indexing(new_var, size, check, wrap_neg) + ) + + set_indirect.clone = functools.partial( # type: ignore[attr-defined] + LoopBody.bind_set_indirect_shim, + var=var, + size=size, + check=check, + wrap_neg=wrap_neg, + ) + return set_indirect + + def bind_scan_shim(self, combine_fn): + def shim(dtypes, values): + return V.ops.scan(dtypes, combine_fn, values) + + shim.clone = functools.partial(LoopBody.bind_scan_shim, combine_fn=combine_fn) # type: ignore[attr-defined] + return shim + + def bind_masked_shim(self, name): + def shim(mask, other): + return V.ops.masked(mask, self.subblocks[name], other) + + shim.clone = functools.partial(LoopBody.bind_masked_shim, name=name) # type: ignore[attr-defined] + return shim + + +class LoopBodyBlock: + """ + Captures the body of a Loops subclass into an FX graph. + In normal cases there will be a 1:1 mapping between LoopBody and + LoopBodyBlock, however in the case of ops.masked() the masked out + operations will manifest as an extra LoopBodyBlock. + """ + + def __init__(self, body: LoopBody, fn: Callable[..., Any], args: list[Any]): + self.body = body + + tracer = LightTracer() + proxy_ops = tracer.create_proxy("placeholder", "ops", (), {}) + + from .index_propagation import IndexPropagation + + handler: Any = CountOps( + CaptureIndexing(proxy_ops, body, tracer), + body.op_counts, + ) + if config.constant_and_index_propagation: + handler = IndexPropagation( + handler, self.body.var_ranges, self.body.indirect_var_ranges + ) + + with V.set_ops_handler(handler): + # This indirection is just a cute way to get IndexPropagation to + # unwrap the return value. + ops.output(fn(*args)) + self.graph = tracer.graph + + def extract_pw_from_reduction(self): + red = None + store = None + for node in self.graph.nodes: + if node.target == "reduction": + assert not red + red = node + if node.target == "store_reduction": + assert not store + store = node + assert red + assert store + reduction_type = red.args[-2] + red_arg = red.args[-1] + buf = store.args[1] + ops = store.args[0] + + extra_meta = { + "num_reduction_dims": len(self.body.reduce_vars), + } + with self.graph.inserting_after(store): + self.graph.call_method( + "partial_accumulate", (ops, buf, reduction_type, red_arg, extra_meta) + ) + self.graph.erase_node(store) + self.graph.erase_node(red) + return self + + def __call__(self): + graph = self.graph + submodules = self.body.submodules + + return InterpreterShim(graph, submodules).run(V.get_ops_handler()) + + def debug_str(self, name="block"): + code = torch.fx.GraphModule(self.body.submodules, self.graph).code + return re.sub( + # strip `; del var0` suffixes to make output prettier + r";[^\n]*", + "", + code.strip().replace("def forward(", f"def {name}("), + ) + + def contains_only_ops(self, allowed_ops) -> bool: + return all( + node.target in allowed_ops + for node in self.graph.find_nodes(op="call_method") + ) + + def clone(self, body: LoopBody): + """Shallow copy with a new parent LoopBody""" + copy = LoopBodyBlock.__new__(LoopBodyBlock) + copy.__dict__.update({**self.__dict__, "body": body}) + return copy + + +class CountOps(DefaultHandler): + def __init__(self, inner: OpsHandler[Any], counts: collections.Counter[str]): + self._inner = inner + self._counts = counts + + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + self._counts[name] += 1 + return getattr(self._inner, name)(*args, **kwargs) + + +class CaptureIndexing(WrapperHandler): + name = "CaptureIndexing" + + def __init__( + self, + inner: OpsHandler[Any], + body: LoopBody, + tracer: LightTracer, + ): + super().__init__(inner) + self.body = body + self.tracer = tracer + + def _add_index(self, expr: sympy.Expr, mtype: MemoryUsageType, **kwargs: Any): + return self.tracer.create_proxy( + "call_module", + "get_index", + (self.body.add_index_expr(expr, mtype, **kwargs),), + {}, + ) + + def _simplify(self, expr: sympy.Expr) -> sympy.Expr: + return V.graph.sizevars.simplify_with_ranges(expr, self.body.var_ranges) + + def load(self, name: str, index: sympy.Expr): + index = self._simplify(index) + index = self._add_index(index, MemoryUsageType.LOAD, buffer_name=name) + return self._inner.load(name, index) + + def load_seed(self, name: str, index: int): + assert isinstance(index, int) + self.body.add_index_expr( + sympy.Integer(index), MemoryUsageType.LOAD_SEED, buffer_name=name + ) + return self._inner.load_seed(name, index) + + def store(self, name, index, value, mode=None): + index = self._simplify(index) + index = self._add_index( + index, MemoryUsageType.STORE, buffer_name=name, mode=mode + ) + return self._inner.store(name, index, value, mode) + + def store_reduction(self, name, index, value): + index = self._simplify(index) + index = self._add_index( + index, MemoryUsageType.STORE_REDUCTION, buffer_name=name + ) + return self._inner.store_reduction(name, index, value) + + def reduction(self, dtype, src_dtype, reduction_type, value): + result = self._inner.reduction(dtype, src_dtype, reduction_type, value) + num_outputs = reduction_num_outputs(reduction_type) + if num_outputs > 1: + return tuple(result[i] for i in range(num_outputs)) + return result + + def index_expr(self, index, dtype): + index = self._simplify(index) + if isinstance(index, (int, sympy.Integer)): + return self._inner.constant(int(index), dtype) + index = self._add_index(index, MemoryUsageType.INDEX_EXPR) + return self._inner.index_expr(index, dtype) + + def check_bounds(self, index, size, lower, upper): + index = self._simplify(index) + index = self._add_index(index, MemoryUsageType.CHECK_BOUNDS) + size = self._add_index(size, MemoryUsageType.CHECK_BOUNDS) + return self._inner.check_bounds(index, size, lower, upper) + + def bucketize( + self, + values: T, + boundaries: tuple[str, sympy.Expr, sympy.Expr, sympy.Expr], + boundary_indices: T, + indexing_dtype: torch.dtype, + right: bool, + sorter: Optional[tuple[str, sympy.Expr]] = None, + sorter_indices: Optional[T] = None, + ) -> T: + """ + See [Note: Inductor bucketize op] + """ + boundaries = ( + boundaries[0], + self._add_index( + boundaries[1], + MemoryUsageType.BUCKETIZE, + buffer_name=boundaries[0], + ), + self._add_index( + boundaries[2], + MemoryUsageType.BUCKETIZE, + buffer_name=boundaries[0], + ), + self._add_index( + boundaries[3], + MemoryUsageType.BUCKETIZE, + buffer_name=boundaries[0], + ), + ) + if sorter is not None: + sorter = ( + sorter[0], + self._add_index( + sorter[1], MemoryUsageType.BUCKETIZE, buffer_name=sorter[0] + ), + ) + + return self._inner.bucketize( + values, + boundaries, + boundary_indices, + indexing_dtype, + right, + sorter, + sorter_indices, + ) + + def masked(self, mask_proxy, masked_body: Callable[..., Any], other_proxy): + """ + Recursively capture the masked out body in another LoopBodyBlock + """ + name = self.body.add_submodule(None, "masked_subblock") + self.body.submodules[name] = self.body.bind_masked_shim(name) + self.body.subblocks[name] = LoopBodyBlock(self.body, masked_body, []) + return self.tracer.create_proxy( + "call_module", name, (mask_proxy, other_proxy), {} + ) + + def scan( + self, + dtype_proxy, + combine_fn: Callable[[tuple[Any, ...], tuple[Any, ...]], tuple[Any, ...]], + value_proxy, + ): + shim = self.body.bind_scan_shim(combine_fn) + name = self.body.add_submodule(shim, "scan") + result = self.tracer.create_proxy( + "call_module", + name, + (dtype_proxy, value_proxy), + {}, + ) + # Proxies are iterable, but some methods expect tuples/lists + return tuple(result[i] for i in range(len(value_proxy))) + + def sort(self, dtypes, values, stable, descending): + result = self._inner.sort(dtypes, values, stable, descending) + # Proxies are iterable, but some methods expect tuples/lists + return tuple(result[i] for i in range(len(values))) + + def frexp(self, value_proxy): + result = self._inner.frexp(value_proxy) + # Proxies are iterable, but some methods expect tuples/lists + return (result[0], result[1]) + + def indirect_indexing(self, index_proxy, size, check=True, wrap_neg=True): + """ + Flow data from tensors into indexing formulas. + Introduce a call_module to update the indexing. + """ + + var = self.body.add_indirect(size) + set_indirect = self.body.bind_set_indirect_shim(var, size, check, wrap_neg) + self.tracer.create_proxy( + "call_module", + self.body.add_submodule(set_indirect, f"set_{var}"), + (index_proxy,), + {}, + ) + return var + + def output(self, *result): + self.tracer.create_proxy("output", "output", result, {}) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/lowering.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/lowering.py new file mode 100644 index 0000000000000000000000000000000000000000..8d5c8ce444acaa48622a9ad99f4d1ae4ff1bf618 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/lowering.py @@ -0,0 +1,7683 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import contextlib +import dataclasses +import functools +import itertools +import logging +import math +import operator +import os +import textwrap +import warnings +from collections import defaultdict +from collections.abc import Callable, Collection, Iterable, Sequence +from typing import Any, cast, Optional, TYPE_CHECKING, TypeGuard, TypeVar, Union +from typing_extensions import ParamSpec +from unittest.mock import patch + +import sympy + +import torch +import torch.ao.quantization.fx._decomposed +import torch.fx +import torch.utils._pytree as pytree +from torch._dynamo.utils import counters +from torch._higher_order_ops.associative_scan import associative_scan_op +from torch._higher_order_ops.triton_kernel_wrap import triton_kernel_wrapper_mutation +from torch._library.fake_class_registry import FakeScriptObject +from torch._library.utils import get_layout_constraint_tag +from torch._prims_common import ( # pyrefly: ignore # deprecated; pyrefly: ignore [deprecated] + canonicalize_dim, + canonicalize_dims, + check, + dtype_to_type, + elementwise_dtypes, + ELEMENTWISE_TYPE_PROMOTION_KIND, + get_computation_dtype, + is_boolean_dtype, + is_float_dtype, + is_integer_dtype, + Number, +) +from torch.fx.experimental.sym_node import magic_methods, method_to_operator +from torch.fx.experimental.symbolic_shapes import ( + free_unbacked_symbols, + has_free_unbacked_symbols, + resolve_unbacked_bindings, +) +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.functions import ( + CeilDiv, + FloorDiv, + Identity, + Mod, + ModularIndexing, +) + +from .._dynamo.utils import import_submodule +from . import config, inductor_prims, ir, test_operators # NOQA: F401 +from .decomposition import decompositions, get_decompositions +from .ir import ( + BaseView, + DtypeView, + ExpandView, + IndexingConstant, + IRNode, + is_triton, + MutableBox, + OnlineSoftmaxReduction, + ops_wrapper, + PermuteView, + Pointwise, + Reduction, + ShapeAsConstantBuffer, + SqueezeView, + TensorBox, + validate_ir, + View, +) +from .utils import ( + ceildiv, + decode_device, + is_dynamic, + is_gpu, + is_pointwise_use, + is_view, + needs_fallback_due_to_atomic_add_limitations, + pad_listlike, + register_op_dtype_propagation_rules, + register_op_requires_libdevice_fp64, + sympy_product, + use_scatter_fallback, +) +from .virtualized import ops, V + + +if TYPE_CHECKING: + from .ops_handler import ReductionType + + +_T = TypeVar("_T") +_P = ParamSpec("_P") + +# TODO(jansel): we should implement decomps or lowerings for these +# https://github.com/pytorch/torchdynamo/issues/327 +FALLBACK_ALLOW_LIST = OrderedSet( + [ + "torchvision::roi_align", + "aten::index_add", + ] +) + +log = logging.getLogger(__name__) +lowerings: dict[Union[Callable[..., Any], str], Callable[..., Any]] = {} +# Use maybe_layout_constraints to access this dict, we lazily register tag-based layout constraints +_maybe_layout_constraints: dict[ + torch._ops.OpOverload, Optional[Callable[..., Any]] +] = {} +fallbacks = OrderedSet[torch._ops.OpOverload]() +aten = torch.ops.aten +tr_c10d = torch.ops.tr_c10d +prims = torch.ops.prims +needs_realized_inputs = OrderedSet[torch._ops.OpOverload]() +foreach_ops = OrderedSet[torch._ops.OpOverload]( + [torch._higher_order_ops._foreach_map] # type: ignore[list-item] +) +# TODO(rec): torch._higher_order_ops._foreach_map is not an OpOverload +# so why is it in foreach_ops? +inplace_foreach_ops = OrderedSet[torch._ops.OpOverload]() +inplaceable_foreach_ops: dict[torch._ops.OpOverload, torch._ops.OpOverload] = {} +quantized_decomposed = torch.ops.quantized_decomposed + + +def cur_node_has_non_foreach_users() -> bool: + for node in V.graph.current_node.users: + for user in node.users: + if not (user.op == "call_function" and (user.target in foreach_ops)): + return True + + return False + + +# group by device, whether any of the inputs are dynamic +# note arg_pairs may or may not be a pair +# foreach_map for example just passes output buffers here +def group_foreach_args( + arg_pairs: Iterable[Any], +) -> defaultdict[tuple[Any, bool], list[tuple[int, Any]]]: + out = defaultdict(list) + unpack_args = False + for i, args in enumerate(arg_pairs): + if not isinstance(args, Iterable): + unpack_args = True + args = (args,) + use_foreach = ( + not is_dynamic(*args) or config.combo_kernel_foreach_dynamic_shapes + ) + device = None + for t in args: + if isinstance(t, TensorBox): + device = t.data.get_device() + break + assert device is not None, "foreach op should have at least one tensor arg" + if unpack_args: + # pyrefly: ignore [bad-unpacking] + (args,) = args + out[(device, use_foreach)].append((i, args)) + return out + + +def maybe_layout_constraints(fn: Callable[..., Any]) -> Optional[Callable[..., Any]]: + """Get layout constraints. Returns None if there are no layout constraints.""" + if not isinstance(fn, torch._ops.OpOverload): + # Only OpOverloads have layout constraints. + return None + + if maybe_layout_tag := get_layout_constraint_tag(fn, with_default=False): + return tag_to_layout_constraint(maybe_layout_tag) + + if fn in _maybe_layout_constraints: + return _maybe_layout_constraints[fn] + return None + + +def tag_to_layout_constraint( + tag: torch._C.Tag, +) -> Optional[Callable[..., tuple[Any, Any]]]: + if tag == torch._C.Tag.needs_exact_strides: + return constrain_to_fake_tensors + if tag == torch._C.Tag.needs_contiguous_strides: # type: ignore[attr-defined] + return require_contiguous_strides + if tag == torch._C.Tag.needs_fixed_stride_order: + return constrain_to_fx_strides + if tag == torch._C.Tag.flexible_layout: + return None + raise AssertionError(f"Unknown layout constraint tag: {tag}") + + +def assert_nyi(cond: bool, msg: str) -> None: + if not cond: + raise NotImplementedError(f"inductor does not support {msg}") + + +def add_needs_realized_inputs( + fn: Union[ + Collection[Union[torch._ops.OpOverload, torch._ops.OpOverloadPacket]], + torch._ops.OpOverload, + torch._ops.OpOverloadPacket, + ], +) -> Optional[list[Any]]: + if isinstance(fn, (list, set, tuple, OrderedSet)): # noqa: set_linter + return [add_needs_realized_inputs(x) for x in fn] + if isinstance(fn, torch._ops.OpOverload): + needs_realized_inputs.add(fn) + elif isinstance(fn, torch._ops.OpOverloadPacket): + needs_realized_inputs.update( + getattr(fn, overload) for overload in fn.overloads() + ) + return None + + +def add_layout_constraint( + fn: Union[torch._ops.OpOverloadPacket, torch._ops.OpOverload], + constraint: Callable[..., tuple[Any, Any]], +) -> None: + if isinstance(fn, torch._ops.OpOverloadPacket): + for overload in fn.overloads(): + _maybe_layout_constraints[getattr(fn, overload)] = constraint + else: + _maybe_layout_constraints[fn] = constraint + + +add_needs_realized_inputs( + [ + aten.as_strided, + aten.as_strided_copy, + aten.avg_pool2d, + aten.avg_pool2d_backward, + aten.bmm, + aten.convolution, + aten.convolution_backward, + aten.max_pool2d_with_indices, + aten.max_pool3d_with_indices, + aten.max_pool2d_with_indices_backward, + aten.mm, + aten.upsample_nearest2d, + aten._upsample_nearest_exact2d, + aten._int_mm, + ] +) + +# TODO(jansel): ezyang says we won't need this in the future, try removing it +# based on https://github.com/pytorch/pytorch/blob/9e3eb329df8f701/c10/core/ScalarType.h#L28 +DTYPE_ID_LOOKUP = { + 0: torch.uint8, + 1: torch.int8, + 2: torch.int16, + 3: torch.int32, + 4: torch.int64, + 5: torch.float16, + 6: torch.float32, + 7: torch.float64, + 8: torch.complex32, + 9: torch.complex64, + 10: torch.complex32, + 11: torch.bool, + 15: torch.bfloat16, + # TODO(jansel): add quantized types? + # _(c10::qint8, QInt8) /* 12 */ + # _(c10::quint8, QUInt8) /* 13 */ + # _(c10::qint32, QInt32) /* 14 */ + # _(c10::quint4x2, QUInt4x2) /* 16 */ + # _(c10::quint2x4, QUInt2x4) /* 17 */ +} + + +def decode_dtype(dtype: Union[int, torch.dtype]) -> torch.dtype: + if not isinstance(dtype, int): + return dtype + assert dtype in DTYPE_ID_LOOKUP, f"id {dtype} missing from DTYPE_ID_LOOKUP" + # pyrefly: ignore [bad-assignment] + dtype = DTYPE_ID_LOOKUP[dtype] + return dtype + + +def is_integer_type(x: Any) -> TypeGuard[Union[TensorBox, sympy.Expr, int]]: + if isinstance(x, TensorBox): + return is_integer_dtype(x.get_dtype()) or is_boolean_dtype(x.get_dtype()) + elif isinstance(x, sympy.Expr): + return x.is_integer is True # type: ignore[attr-defined] + else: + return isinstance(x, int) + + +def is_boolean_type(x: Any) -> TypeGuard[Union[TensorBox, bool]]: + if isinstance(x, TensorBox): + return is_boolean_dtype(x.get_dtype()) + else: + return isinstance(x, bool) + + +def get_promoted_dtype( + *args: Any, type_promotion_kind: ELEMENTWISE_TYPE_PROMOTION_KIND +) -> torch.dtype: + def construct_input(inp: Any) -> Any: + if isinstance(inp, (Number, sympy.Basic)): + return inp + else: + dim = len(inp.get_size()) + # construct a tmp tensor to feed into torch.result_type + return torch.zeros([1] * dim, dtype=inp.get_dtype()) + + inps = [construct_input(arg) for arg in args] + _, dtype = elementwise_dtypes(*inps, type_promotion_kind=type_promotion_kind) + return dtype + + +def get_overloads(aten_fn): + if not isinstance(aten_fn, (list, tuple)): + aten_fn = [aten_fn] + else: + aten_fn = list(aten_fn) + + for fn in list(aten_fn): + if isinstance(fn, torch._ops.OpOverloadPacket): + for overload in fn.overloads(): + other_fn = getattr(fn, overload) + if other_fn not in lowerings: + aten_fn.append(other_fn) + + return aten_fn + + +def in_namespace( + op: Union[Any, torch._ops.OpOverloadPacket, torch._ops.OpOverload], namespace: str +) -> bool: + if isinstance(op, torch._ops.OpOverloadPacket): + return namespace in op._qualified_op_name + elif isinstance(op, torch._ops.OpOverload): + return namespace in op.name() + return False + + +def maybe_copy_cpu_scalar(x: TensorBox, device: torch.device) -> TensorBox: + """ + Copy cpu scalar if doesn't not match with given `device` + """ + if not isinstance(x.data, ir.ReinterpretView) or has_free_unbacked_symbols( + x.get_size() + ): + return x + size = [V.graph.sizevars.size_hint_or_throw(s) for s in x.get_size()] + cur_device = x.get_device() + if ( + cur_device is not None + and cur_device.type == "cpu" + and cur_device != device + and (len(size) == 0 or (len(size) == 1 and size[0] == 1)) + ): + return TensorBox(ir.StorageBox(ir.DeviceCopy.create(x, cur_device, False))) + return x + + +def transform_args( + args: list[Any], + kwargs: dict[str, Any], + broadcast: bool, + type_promotion_kind: Optional[ELEMENTWISE_TYPE_PROMOTION_KIND], + convert_input_to_bool: bool, +) -> tuple[list[Any], dict[str, Any]]: + """ + Transforms arguments for broadcasting and type promotion + """ + + args_indices = [i for i, x in enumerate(args) if isinstance(x, TensorBox)] + kwargs_indices = [k for k, v in kwargs.items() if isinstance(v, TensorBox)] + # check that there's something to transform + if not args_indices and not kwargs_indices: + return args, kwargs + + if type_promotion_kind or convert_input_to_bool: + if convert_input_to_bool: + dtype = torch.bool + else: + # FIXME this is a crude approximation for promoting args + promoting_args = [ + a + for a in args + if isinstance(a, (Number, sympy.Basic)) or hasattr(a, "dtype") + ] + # only consider tensor kwargs for promotion, for now + promoting_args.extend(a for a in kwargs.values() if hasattr(a, "dtype")) + dtype = get_promoted_dtype( + *promoting_args, + type_promotion_kind=type_promotion_kind, # type: ignore[arg-type] + ) + + device = ( + args[args_indices[0]] if args_indices else kwargs[kwargs_indices[0]] + ).get_device() + + for i in args_indices: + args[i] = maybe_copy_cpu_scalar(args[i], device) + + for k in kwargs_indices: + kwargs[k] = maybe_copy_cpu_scalar(kwargs[k], device) + + # sometimes args are an immutable list so we can't mutate them + def promote(arg: Any) -> Any: + if isinstance(arg, TensorBox): + return to_dtype(arg, dtype) + elif isinstance(arg, ir.Constant): + return ir.Constant(value=arg.value, dtype=dtype, device=device) + else: + return arg + + args = [promote(a) for a in args] + kwargs = {k: promote(v) for k, v in kwargs.items()} + + if broadcast: + broadcasted = broadcast_tensors( + *list( + itertools.chain( + (args[i] for i in args_indices), + (kwargs[k] for k in kwargs_indices), + ) + ) + ) + size = list(broadcasted[0].get_size()) + + for i, x in zip(args_indices, broadcasted[: len(args_indices)]): + args[i] = x + for k, x in zip(kwargs_indices, broadcasted[len(args_indices) :]): + kwargs[k] = x + + for i in range(len(args)): + if isinstance(args[i], ir.Constant): + args[i] = ExpandView.create(args[i], size) + for k in kwargs: + if isinstance(kwargs[k], ir.Constant): + kwargs[k] = ExpandView.create(kwargs[k], size) + + return args, kwargs + + +def _register_foreach_lowering( + aten_fn: torch._ops.OpOverload, decomp_fn: Callable[..., Any] +) -> Callable[..., Any]: + """ + Add a foreach lowering to lowerings dict. + + Arguments: + aten_fn: torch.ops.aten.* fn we are lowering + decomp_fn: alternate implementation on our IR + broadcast: True to apply broadcasting to tensor inputs + type_promotion_kind: kind of type promotion applied to tensor inputs, `None` means no type promotion + convert_input_to_bool: some logical ops require inputs are converted to bool + """ + + @functools.wraps(decomp_fn) + def wrapped(*args: Any, **kwargs: Any) -> Any: + assert len(args) <= 2 + out = decomp_fn(*args, **kwargs) + validate_ir(out) + return out + + aten_fns = get_overloads(aten_fn) + foreach_ops.update(aten_fns) + lowerings.update(dict.fromkeys(aten_fns, wrapped)) + return wrapped + + +def _register_lowering( + aten_fn, + decomp_fn: Callable[..., Any], + broadcast: bool, + type_promotion_kind: Optional[ELEMENTWISE_TYPE_PROMOTION_KIND], + convert_input_to_bool: bool, + lowering_dict: dict[Union[Callable[..., Any], str], Callable[..., Any]], +): + """ + Add a lowering to lowerings dict + + Arguments: + aten_fn: torch.ops.aten.* fn we are lowering + decomp_fn: alternate implementation on our IR + broadcast: True to apply broadcasting to tensor inputs + type_promotion_kind: kind of type promotion applied to tensor inputs, `None` means no type promotion + convert_input_to_bool: some logical ops require inputs are converted to bool + """ + + @functools.wraps(decomp_fn) + def wrapped(*args, **kwargs): + args: list[Any] = list(args) + kwargs: dict[str, Any] = dict(kwargs) + unpacked = False + # TODO maybe we need to use pytrees here + if len(args) == 1 and isinstance(args[0], (list, tuple)): + unpacked = True + args = list(args[0]) + + if not all( + (fn in fallbacks or in_namespace(fn, "_c10d_functional")) for fn in aten_fn + ): + # explicitly assert for "out=" ops for better error messages + assert not any(x == "out" for x in kwargs), "out= ops aren't yet supported" + + args, kwargs = transform_args( + args, kwargs, broadcast, type_promotion_kind, convert_input_to_bool + ) + + if unpacked: + args = [args] + + out = decomp_fn(*args, **kwargs) + validate_ir(out) + + return out + + aten_fn = get_overloads(aten_fn) + + lowering_dict.update(dict.fromkeys(aten_fn, wrapped)) + return wrapped + + +def register_lowering( + aten_fn, + broadcast=False, + type_promotion_kind: Optional[ + ELEMENTWISE_TYPE_PROMOTION_KIND + ] = ELEMENTWISE_TYPE_PROMOTION_KIND.DEFAULT, + convert_input_to_bool=False, + lowering_dict=lowerings, +) -> Callable[[Callable[_P, _T]], Callable[_P, _T]]: + """ + Shim to support decorator syntax. + """ + return functools.partial( + _register_lowering, + aten_fn, + broadcast=broadcast, + type_promotion_kind=type_promotion_kind, + convert_input_to_bool=convert_input_to_bool, + lowering_dict=lowering_dict, + ) + + +def broadcast_symbolic_shapes(a, b): + """ + Broadcasting logic based on symbolic shapes. + + We give the shapes 0 and 1 concrete values, while all other shapes + are symbolic sympy formulas. + """ + output = [] + for x, y in itertools.zip_longest(reversed(a), reversed(b), fillvalue=sympy.S.One): + if V.graph.sizevars.is_size_one_or_false(y): + output.append(x) + elif V.graph.sizevars.is_size_one_or_false(x): + output.append(y) + else: + V.graph.sizevars.check_equals(x, y) + if len(sympy.expand(y).free_symbols) < len(sympy.expand(x).free_symbols): + output.append(y) # prefer shorter formula + else: + output.append(x) + return tuple(reversed(output)) + + +def promote_constants(inputs, override_return_dtype=None, type_promotion_kind=None): + assert override_return_dtype is None or type_promotion_kind is None, ( + "only one of override_return_dtype or type_promotion_kind may be given" + ) + + if override_return_dtype is None and type_promotion_kind is None: + type_promotion_kind = ELEMENTWISE_TYPE_PROMOTION_KIND.DEFAULT + + if not any(isinstance(x, (sympy.Basic, int, float)) for x in inputs): + return inputs + if all(isinstance(x, (int, float, sympy.Basic)) for x in inputs): + dtype = override_return_dtype or get_promoted_dtype( + *inputs, + # pyrefly: ignore [bad-argument-type] + type_promotion_kind=type_promotion_kind, + ) + + def const_func(x): + if isinstance(x, sympy.Basic): + return ir.IndexingConstant( + index=x, dtype=dtype, device=decode_device(None) + ) + else: + return ir.Constant(value=x, dtype=dtype, device=decode_device(None)) + + return [const_func(x) for x in inputs] + ex = next(x for x in inputs if isinstance(x, (TensorBox, ExpandView, ir.Constant))) + out = [] + for x in inputs: + if isinstance(x, (int, float)): + out.append( + ExpandView.create( + ir.Constant( + value=x, dtype=ex.get_dtype(), device=ex.get_device_or_error() + ), + list(ex.get_size()), + ) + ) + elif isinstance(x, sympy.Basic): + out.append( + ExpandView.create( + IndexingConstant( + index=x, dtype=ex.get_dtype(), device=ex.get_device_or_error() + ), + list(ex.get_size()), + ) + ) + else: + out.append(x) + + return out + + +def make_pointwise( + fn, + override_return_dtype=None, + override_device=None, + override_fn_when_input_bool=None, + allow_alpha=False, + triton_fallback=None, +): + def inner(*inputs: TensorBox, alpha=None): + if triton_fallback is not None and any( + isinstance(inp, IRNode) and is_triton(inp) for inp in inputs + ): + assert not allow_alpha # not implemented + return triton_fallback(*inputs) + + inputs = promote_constants(inputs, override_return_dtype) + if allow_alpha: + if alpha is not None and alpha != 1: + # pyrefly: ignore [bad-assignment] + inputs = list(inputs) + # pyrefly: ignore [unsupported-operation] + inputs[-1] = mul(inputs[-1], alpha) + else: + assert alpha is None + loaders = [x.make_loader() for x in inputs] + ranges = inputs[0].get_size() + dtype = override_return_dtype or inputs[0].get_dtype() + + for other in inputs[1:]: + assert isinstance(other, ir.BaseConstant) or len(ranges) == len( + other.get_size() + ), f"ndim mismatch {fn} {ranges} {other.get_size()}" + + # in tracing, we will annotate pointwise nodes that correspond to the output of + # a pointwise node that would have been run in eager. intermediary pointwise nodes + # during decompositions are not annotated. + low_pr_fp = (torch.bfloat16, torch.float16) + emulate_precision_casts = ( + V.graph is not None + and getattr(V.graph, "current_node", None) is not None + and V.graph.current_node.meta is not None + and V.graph.current_node.meta.get("low_precision_pointwise_barrier", False) + ) + emulate_output_cast = emulate_precision_casts and dtype in low_pr_fp + + def inner_fn(index): + assert len(index) == len(ranges), f"wrong ndim {index} {ranges}" + if dtype == torch.bool and override_fn_when_input_bool is not None: + return override_fn_when_input_bool(*[load(index) for load in loaders]) + else: + inputs_loaded = [] + for inp_index, load in enumerate(loaders): + out = load(index) + inp_dtype = inputs[inp_index].get_dtype() + if emulate_precision_casts and inp_dtype in low_pr_fp: + downcast = ops.to_dtype(out, inp_dtype, use_compute_types=False) + out = ops.to_dtype(downcast, inp_dtype) + inputs_loaded.append(out) + + out = fn(*inputs_loaded) + if emulate_output_cast: + # fp16/bf16 kernels are computed in fp32. Casting down to fp16/bf16 here, + # then upcasting again, to emulate casts that eager would do. + downcast = ops.to_dtype(out, dtype, use_compute_types=False) + return ops.to_dtype(downcast, dtype) + return out + + if not override_device: + device = None + for i in inputs: + # pyrefly: ignore [missing-attribute] + if is_gpu(i.get_device().type): + device = i.get_device() + break + if not device: + device = inputs[0].get_device() + + # pyrefly: ignore [unbound-name] + device = override_device or device + + return Pointwise.create( + device=device, # type: ignore[arg-type] + dtype=dtype, + inner_fn=inner_fn, + ranges=ranges, + ) + + return inner + + +def make_foreach_pointwise(pw_fn, allow_alpha=False): + def inner(*inputs: list[list[TensorBox]], alpha=1): + realize_outputs = ( + len(V.graph.current_node.users) == 0 + or V.graph.current_node.target in inplace_foreach_ops + or cur_node_has_non_foreach_users() + ) + + a_list_input = None + for input in inputs: + if isinstance(input, (list, tuple)): + a_list_input = input + break + assert a_list_input is not None, ( + "at least one input must be a list to a foreach op" + ) + + # broadcast scalar inputs to match length of list inputs + broadcast_inputs = [] + for input in inputs: + if not isinstance(input, (list, tuple)): + broadcast_inputs.append([input] * len(a_list_input)) + else: + broadcast_inputs.append(input) + + groups = group_foreach_args(zip(*broadcast_inputs)) + + outputs = [None] * len(a_list_input) + for (device, use_foreach), group in groups.items(): + operation_list: list[str] = [] + for ( + output_ind, + args, + ) in group: + if allow_alpha: + output = pw_fn(*args, alpha=alpha) + else: + output = pw_fn(*args) + + outputs[output_ind] = output + + if ( + # pyrefly: ignore [unbound-name] + V.graph.has_feature(device, BackendFeature.FOREACH) + and use_foreach + and realize_outputs + ): + output.realize() + operation_list.append(output.get_operation_name()) + + if operation_list: + # pyrefly: ignore [unbound-name] + V.graph.register_operation_list(operation_list) + + assert all(x is not None for x in outputs) + return outputs + + return inner + + +def to_dtype( + x: Union[TensorBox, ShapeAsConstantBuffer], dtype: torch.dtype, copy: bool = False +): + src_dtype = x.get_dtype() + if src_dtype == dtype: + return clone(x) if copy else x + + def _to_dtype(x): + return ops.to_dtype(x, dtype, src_dtype=src_dtype) + + return make_pointwise(_to_dtype, override_return_dtype=dtype)(x) + + +@register_lowering(torch._higher_order_ops._foreach_map, type_promotion_kind=None) +def _foreach_map(subgraph, *args, **kwargs): + """ + This lowers an invocation of foreach_map + The way this works is that an arbitrary N-arg func is provided by the user, looped over by the + polyfill with the same semantics as a foreach op (a loop applying an n-ary function to n args) + and then traced into a subgraph by dynamo. + This code allows us to inline the subgraph into the main graph lowering using the PontwiseSubgraphLowering. + The graph outputs represent the vertically fused sequence of ops, and then register_operation_list + below registers the buffers as horizontally fuseable in the scheduler. + """ + from .subgraph_lowering import PointwiseSubgraphLowering + + inputs = args + + gm = subgraph.graph_module + pw_subgraph = PointwiseSubgraphLowering(gm, root_graph_lowering=V.graph) + with V.set_graph_handler(pw_subgraph): # type: ignore[arg-type] + pw_subgraph.run(*inputs) + + sub_outputs = pw_subgraph.graph_outputs + # group outputs by device and register as foreach + assert sub_outputs # mypy lol + groups = group_foreach_args(sub_outputs) + + outputs = [None] * len(sub_outputs) + for (device, use_foreach), group in groups.items(): + operation_list: list[str] = [] + for ( + output_ind, + output, + ) in group: + outputs[output_ind] = output + + if V.graph.has_feature(device, BackendFeature.FOREACH) and use_foreach: + output.realize() + operation_list.append(output.get_operation_name()) + + if operation_list: + V.graph.register_operation_list(operation_list) + + assert all(x is not None for x in outputs) + return outputs + + +@register_lowering(prims.convert_element_type, type_promotion_kind=None) +def _convert_element_type(x: TensorBox, dtype: torch.dtype): + if dtype.is_complex or x.get_dtype().is_complex: + if x.get_size(): + # Decompose since aa aten fallback is more friendly for c++ codegen. + # This decomposition doesn't work for empty tensor, which needs more investigation. + dst = empty_like(x, dtype=dtype) + ir.InplaceCopyFallback.create(dst, x) + return dst + else: + return fallback_handler( + prims.convert_element_type.default, add_to_fallback_set=False + )(x, dtype) + return to_dtype(x, dtype, copy=True) + + +def to_dtype_bitcast(x: TensorBox, dtype: torch.dtype, *, copy=False): + x_dtype = x.get_dtype() + if x_dtype == dtype: + return clone(x) if copy else x + + def _get_primitive_bitwidth(dtype): + if dtype.is_floating_point: + return torch.finfo(dtype).bits + else: + return torch.iinfo(dtype).bits + + src_bits = _get_primitive_bitwidth(x_dtype) + dst_bits = _get_primitive_bitwidth(dtype) + if src_bits != dst_bits: + # fallback to aten eager implementation for differing bitwidths + return fallback_handler(aten.view.dtype)(x, dtype) + else: + return TensorBox(DtypeView.create(x, dtype)) + + +@register_lowering(aten.view.dtype, type_promotion_kind=None) +def _view_dtype(x: TensorBox, dtype: torch.dtype): + if dtype.is_complex or x.get_dtype().is_complex: + return TensorBox.create( + ir.ComplexView.create(torch.ops.aten.view.dtype, x, dtype) + ) + return to_dtype_bitcast(x, dtype) + + +def to_device(x: TensorBox, device: torch.device, *, copy=False, non_blocking=False): + device = decode_device(device) + if x.get_device() == device: + return clone(x) if copy else x + return TensorBox.create(ir.DeviceCopy.create(x, device, non_blocking)) + + +@register_lowering(prims.device_put, type_promotion_kind=None) +def _device_put(x: TensorBox, device: torch.device, non_blocking=False): + return to_device(x, device, copy=True, non_blocking=non_blocking) + + +def register_pointwise( + aten_fn, + name=None, + broadcast=True, + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.DEFAULT, + convert_input_to_bool=False, + override_return_dtype=None, + override_fn_when_input_bool=None, + allow_alpha=False, + triton_fallback=None, +): + """A pointwise function that maps ops.{name} to inputs""" + name = name or aten_fn.__name__ + fn = ops_wrapper(name) + + register_op_dtype_propagation_rules( + name, type_promotion_kind, override_return_dtype + ) + + if override_fn_when_input_bool is not None: + override_fn_when_input_bool = ops_wrapper(override_fn_when_input_bool) + + fn = make_pointwise( + fn, + override_return_dtype=override_return_dtype, + override_fn_when_input_bool=override_fn_when_input_bool, + allow_alpha=allow_alpha, + triton_fallback=triton_fallback, + ) + fn = register_lowering( + aten_fn, + broadcast=broadcast, + type_promotion_kind=type_promotion_kind, + convert_input_to_bool=convert_input_to_bool, + )(fn) + + if hasattr(prims, name): + register_lowering( + getattr(prims, name), + type_promotion_kind=None, + convert_input_to_bool=convert_input_to_bool, + )(fn) + return fn + + +def register_frexp(): + """A pointwise function that maps ops.frexp to inputs""" + name = "frexp" + frexp = ops_wrapper("frexp") + + def frexp0(*args, **kwargs): + return frexp(*args, **kwargs)[0] # type: ignore[index] + + def frexp1(*args, **kwargs): + return frexp(*args, **kwargs)[1] # type: ignore[index] + + pw_fns = [ + make_pointwise(frexp0), + make_pointwise(frexp1, override_return_dtype=torch.int32), + ] + + def fn(*args, **kwargs): + return pw_fns[0](*args, **kwargs), pw_fns[1](*args, **kwargs) + + fn = register_lowering( + aten.frexp, + )(fn) + + if hasattr(prims, name): + register_lowering( + getattr(prims, name), + type_promotion_kind=None, + )(fn) + return fn + + +register_frexp() + + +def register_foreach_pointwise( + aten_fn, + pointwise_lowering_fn, + allow_alpha=False, +): + fn = make_foreach_pointwise(pointwise_lowering_fn, allow_alpha=allow_alpha) + fn = _register_foreach_lowering(aten_fn, fn) + return fn + + +@register_lowering(aten.where, broadcast=False, type_promotion_kind=None) +def where(cond, a, b): + def fn(*args): + return ops.where(*args) + + if isinstance(a, (float, int)): + a = constant_like(a)(b) + if isinstance(b, (float, int)): + b = constant_like(b)(a) + + args = [cond, a, b] + dtype = get_promoted_dtype( + args[1], args[2], type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.DEFAULT + ) + indices = [i for i, x in enumerate(args) if isinstance(x, TensorBox)] + for i, x in zip(indices, broadcast_tensors(*[args[i] for i in indices])): + args[i] = x + for i in range(len(args)): + if isinstance(args[i], ir.Constant): + args[i] = ExpandView.create(args[i], list(args[indices[0]].get_size())) + return make_pointwise(fn, override_return_dtype=dtype)( + args[0], to_dtype(args[1], dtype), to_dtype(args[2], dtype) + ) + + +@register_lowering(aten.broadcast_tensors, broadcast=False, type_promotion_kind=None) +def broadcast_tensors(*inputs): + if len(inputs) == 1 and isinstance(inputs[0], (list, tuple)): + return broadcast_tensors(*inputs[0]) + target: list[sympy.Expr] = functools.reduce( + broadcast_symbolic_shapes, [x.get_size() for x in inputs], [] + ) + outputs = [] + for x in inputs: + sizes = x.get_size() + + if len(sizes) != len(target) or any( + V.graph.sizevars.is_size_one_or_false(a) + != V.graph.sizevars.is_size_one_or_false(b) + for a, b in zip(sizes, target) + ): + x = expand(x, target) + outputs.append(x) + return outputs + + +@register_lowering([aten.alias, aten.detach, aten.detach_, aten.lift, prims.view_of]) +def nop(x): + return x # AOT autograd handles this for us + + +if hasattr(aten, "lift_fresh"): + register_lowering(aten.lift_fresh)(nop) + + +@register_lowering(aten.squeeze, type_promotion_kind=None) +def squeeze(x, dim=None): + assert isinstance(x, TensorBox) + if dim is None: + return TensorBox(SqueezeView.create(x.data)) + + dim = ( + V.graph.sizevars.guard_int(dim) + if isinstance(dim, (int, sympy.Expr)) + else tuple(V.graph.sizevars.guard_int(d) for d in dim) + ) + dim = canonicalize_dims(len(x.get_size()), dim) # type: ignore[call-overload] + dims = OrderedSet((dim,) if not isinstance(dim, tuple) else dim) + + new_shape = [] + for d, s in enumerate(x.get_size()): + if not (d in dims and V.graph.sizevars.guard_or_false(sympy.Eq(s, 1))): + new_shape.append(s) + + # squeeze does nothing if the size isn't 1 + return view(x, new_shape) if new_shape != x.get_size() else x + + +@register_lowering(aten.squeeze_copy, type_promotion_kind=None) +def squeeze_copy(x, dim=None): + return clone(squeeze(x, dim)) + + +@register_lowering([aten.squeeze_]) +def squeeze_(x, dim=None): + val = squeeze(x, dim) + assert isinstance(x, TensorBox) + assert isinstance(val, TensorBox) + x.data = val.data + return x + + +@register_lowering(aten.isinf) +def isinf(x): + if is_integer_type(x): + return full_like(x, False, dtype=torch.bool) + fn = ops_wrapper("isinf") + return make_pointwise(fn, override_return_dtype=torch.bool)(x) + + +@register_lowering(aten.isnan) +def isnan(x): + if is_integer_type(x): + return full_like(x, False, dtype=torch.bool) + fn = ops_wrapper("isnan") + return make_pointwise(fn, override_return_dtype=torch.bool)(x) + + +@register_lowering(aten.ceil) +def ceil(x): + if is_integer_type(x): + return clone(x) + fn = ops_wrapper("ceil") + return make_pointwise(fn)(x) + + +@register_lowering(aten.floor) +def floor(x): + if is_integer_type(x): + return clone(x) + fn = ops_wrapper("floor") + return make_pointwise(fn)(x) + + +@register_lowering(aten.round.default) +def round(x): + if is_integer_type(x): + return clone(x) + else: + fn = ops_wrapper("round") + return make_pointwise(fn)(x) + + +@register_lowering(aten.trunc) +def trunc(x): + if is_integer_type(x): + return clone(x) + fn = ops_wrapper("trunc") + return make_pointwise(fn)(x) + + +@register_lowering(aten.expand, type_promotion_kind=None) +def expand(x, sizes): + (x,) = promote_constants([x]) + if isinstance(x, ir.BaseConstant): + return ExpandView.create(x, tuple(sizes)) + assert isinstance(x, TensorBox) + assert isinstance(sizes, (list, tuple)) + if tuple(x.get_size()) == tuple(sizes): + return x + + if not free_unbacked_symbols(x.get_size()): + x_size_product = V.graph.sizevars.size_hint_or_throw( + sympy_product(x.get_size()) + ) + # TODO: It would be better to realize the input if any of its sizes + # are unbacked, because typically the size will be non-zero. However, + # this cannot be done directly as below as we'll choke on the size_hint + # here + if x_size_product > 0 and not free_unbacked_symbols(sizes): + # maybe realize input before broadcasting it + x.mark_reuse( + V.graph.sizevars.size_hint_or_throw(sympy_product(sizes)) + // x_size_product + ) + return TensorBox(ExpandView.create(x.data, tuple(sizes))) + + +@register_lowering(prims.broadcast_in_dim, type_promotion_kind=None) +def broadcast_in_dim(a, shape, broadcast_dimensions): + s = list(shape) + for broadcast_dimension in broadcast_dimensions: + s[broadcast_dimension] = -1 + + v = a + for idx, x in enumerate(s): + if x != -1: + v = unsqueeze(v, idx) + + return expand(v, shape) + + +@register_lowering(aten.expand_as, type_promotion_kind=None) +def expand_as(x, y): + return expand(x, y.get_size()) + + +@register_lowering(aten.repeat) +def repeat(x, repeats): + old_size = list(x.get_size()) + if len(repeats) > len(old_size): + old_size = [sympy.S.One] * (len(repeats) - len(old_size)) + old_size + x = view(x, list(old_size)) + assert len(repeats) == len(x.get_size()) + + new_size = list(x.get_size()) + + zero_tensor = False + for i in range(len(repeats)): + if repeats[i] == 0: + zero_tensor = True + new_size[i] = new_size[i] * repeats[i] + + if zero_tensor: + return empty(new_size, dtype=x.get_dtype(), device=x.get_device()) + if all((a == 1 or b == 1) for a, b in zip(repeats, old_size)): + return clone(expand(x, new_size)) + + x_loader: Callable[[Any], Any] + + def inner_fn(index): + assert len(index) == len(repeats) + index = list(index) + for i in range(len(repeats)): + if repeats[i] != 1: + if old_size[i] == 1: + index[i] = sympy.S.Zero + else: + index[i] = ModularIndexing(index[i], 1, old_size[i]) + return x_loader(index) + + if not free_unbacked_symbols(old_size) and not free_unbacked_symbols(new_size): + old_size_product = V.graph.sizevars.size_hint_or_throw(sympy_product(old_size)) + if old_size_product > 0: + # maybe realize the input but skip for unbacked symints since it'll + # choke on the size hint. + x.mark_reuse( + V.graph.sizevars.size_hint_or_throw(sympy_product(new_size)) + // old_size_product + ) + + x_loader = x.make_loader() + return Pointwise.create( + device=x.get_device(), + dtype=x.get_dtype(), + inner_fn=inner_fn, + ranges=list(new_size), + ) + + +@register_lowering(aten._unsafe_view, type_promotion_kind=None) +@register_lowering(aten.view, type_promotion_kind=None) +@register_lowering(aten.reshape, type_promotion_kind=None) +def view(x: TensorBox, sizes: Sequence[sympy.Expr]) -> TensorBox: + return TensorBox(View.create(x.data, sizes)) + + +@register_lowering(aten.permute, type_promotion_kind=None) +def permute(x, dims): + assert isinstance(x, TensorBox) + assert isinstance(dims, (list, tuple)) + return TensorBox(PermuteView.create(x.data, tuple(dims))) + + +@register_lowering(aten.slice, type_promotion_kind=None) +def slice_(x, dim=0, start=0, end=2**63, step=1, clamp=True): + """ + Lowers a slice call, creating ExternKernels for the output size & storage offset symbols, + if the indices are unbacked and appropriate semantics aren't known. + If they are known (indices are static/backed/unbacked with info), a SliceView is created. + """ + + from torch.fx.experimental.symbolic_shapes import ( + CallMethodKey, + resolve_unbacked_bindings, + ) + + assert isinstance(x, TensorBox) + dim = _validate_dim(x, dim, 0) + size = x.get_size()[dim] + step = sympy.expand(step) + assert isinstance(step, sympy.Expr) or step > 0, step + + # maybe apply slice optimization + try: + if ( + start == 0 + and V.graph.sizevars.statically_known_leq(size, end) + and step == 1 + ): + return x + except TypeError: + pass + + # try to avoid dynamic (unbacked) slice + def compute_slice_index(index, size, default=None): + if index is None: + return default + + fn = lambda x: V.graph.sizevars.guard_or_false(x) # noqa: E731 + index = sympy.expand(index) + size = sympy.expand(size) + if fn(sympy.Ge(index, 0)) and fn(sympy.Le(index, size)): + return index + elif fn(sympy.Lt(index, 0)) and fn(sympy.Ge(index, -size)): + return index + size + elif fn(sympy.Gt(index, size)): + return size + elif fn(sympy.Lt(index, -size)): + return 0 + return None + + start_index, end_index = None, None + ambiguous_slice = clamp + if ambiguous_slice: + start_index = compute_slice_index(start, size, 0) + end_index = compute_slice_index(end, size, size) + if start_index is not None and end_index is not None: + start, end = start_index, end_index + ambiguous_slice = False + + # ambiguous_slice=False means we know what semantics this slice call follows, + # and don't need to generate an extern kernel to represent the output size. + # This is assumed True for clamp=False + # (meant to follow standard indexing semantics: 0 <= index < size) + if not ambiguous_slice: + return TensorBox( + ir.SliceView.create(x.data, dim, start, end, step, clamp=clamp) + ) # go to SliceView/ReinterpretView + + # unbacked territory: create DynamicSlice ExternKernel + # clamp is True, unbacked start / end + assert clamp + unbacked_bindings = resolve_unbacked_bindings( + V.graph.sizevars.shape_env, V.graph.current_node.meta["unbacked_bindings"] + ) + assert unbacked_bindings is not None + assert len(unbacked_bindings) <= 2, unbacked_bindings + sym_size, sym_storage = None, None + for sym, keypath in unbacked_bindings.items(): + if keypath == (CallMethodKey("size"), pytree.SequenceKey(dim)): + sym_size = sym + elif keypath == (CallMethodKey("storage_offset"),): + sym_storage = sym + + assert start_index is None or end_index is None + b_size = ir.DynamicSliceSize( + sym_size, + start, + end, + step, + x.get_size()[dim], + ) + b_size.name = V.graph.register_buffer(b_size) + V.graph.register_operation(b_size) + new_size = sym_size + + if x.maybe_get_layout() is None: + # realize tensor before accessing layout + x.realize() + + if start_index is not None: + # we shouldn't have allocated storage offset symbol if start index was determinable + assert sym_storage is None + new_storage_offset = x.get_layout().offset + start_index * x.get_stride()[dim] + else: + b_storage = ir.DynamicSelectStorageOffset( + sym_storage, + start, + x.get_layout().offset, + x.get_stride()[dim], + x.get_size()[dim], + clamp=True, + ) + b_storage.name = V.graph.register_buffer(b_storage) + V.graph.register_operation(b_storage) + new_storage_offset = sym_storage + + new_sizes = list(x.get_size()) + new_strides = list(x.get_stride()) + new_sizes[dim] = new_size + new_strides[dim] *= step + return as_strided(x, new_sizes, new_strides, new_storage_offset) + + +@register_lowering(aten.as_strided, type_promotion_kind=None) +def as_strided(x, size, stride, storage_offset=None): + new_device = None + new_dtype = None + if isinstance(x, TensorBox) and isinstance(x.data, ir.BaseView): + # Note: Merging views + # When we use as_strided, we can rewrite the size/stride/offset + # of the incoming buffer x. If x is a view, we would overwrite + # its metadata. Except for dtype, which we need to propagate. + + # Technically device is not needed because it is not possible + # to have a cross-device view today. + new_device = x.get_device() + new_dtype = x.dtype + x = x.data.unwrap_view() + x.realize() + if not ir.is_storage_and_layout(x): + raise NotImplementedError(f"unrealized as_strided({x}, ...)") + storage, old_layout = ir.as_storage_and_layout(x) + new_layout = ir.FixedLayout( + new_device if new_device else old_layout.device, + new_dtype if new_dtype else old_layout.dtype, + [sympy.expand(s) for s in size], + [sympy.expand(s) for s in stride], + sympy.expand(storage_offset or 0), + ) + return TensorBox(ir.ReinterpretView(data=storage, layout=new_layout)) + + +@register_lowering(aten.as_strided_, type_promotion_kind=None) +def as_strided_(x, size, stride, storage_offset=None): + assert isinstance(x, TensorBox) + x.data = as_strided(x, size, stride, storage_offset).data + return x + + +@register_lowering(aten.as_strided_copy, type_promotion_kind=None) +def as_strided_copy(x, size, stride, storage_offset=None): + result = as_strided(x, size, stride, storage_offset) + return clone(result) + + +def pointwise_cat(inputs, dim=0): + # (inclusive, exclusive) + inputs_ranges: list[tuple[sympy.Expr, sympy.Expr]] = [] + prev_end = 0 + for inp in inputs: + inputs_ranges.append((prev_end, prev_end + inp.get_size()[dim])) # type: ignore[arg-type] + prev_end = inputs_ranges[-1][-1] # type: ignore[assignment] + + inputs_loaders = [inp.make_loader() for inp in inputs] + + def inner_fn(idx): + idx_dim = ops.index_expr(idx[dim], torch.int64) + + masks = [] + masked_loads = [] + for i in range(len(inputs)): + start = ( + ops.constant(0, torch.int64) + if i == 0 + else ops.index_expr(inputs_ranges[i][0], torch.int64) + ) + end = ops.index_expr(inputs_ranges[i][1], torch.int64) + + start_cond = ops.ge(idx_dim, start) + end_cond = ops.lt(idx_dim, end) + if i == 0: + mask = end_cond + elif i == len(inputs) - 1: + mask = start_cond + else: + mask = ops.and_(start_cond, end_cond) + + masks.append(mask) + idx_load = list(idx) + + # if we're concatting [4], [2] + # when we index the second tensor for 5 we want to index 5 - 4 + # Use Identity to prevent expansion of index * stride to keep expression + # in same int bitwidth as shape + idx_load[dim] = Identity(idx_load[dim] - inputs_ranges[i][0]) + + masked_loads.append( + ops.masked( + mask, + lambda: inputs_loaders[i](idx_load), + 0.0, # this value should be unused + ), + ) + + next_val = masked_loads[-1] + for i in range((len(inputs)) - 2, -1, -1): + next_val = ops.where( + masks[i], + masked_loads[i], + next_val, + ) + return next_val + + new_size = list(inputs[0].get_size()) + new_size[dim] = inputs_ranges[-1][-1] + + return Pointwise.create( + device=inputs[0].get_device(), + dtype=inputs[0].get_dtype(), + inner_fn=inner_fn, + ranges=new_size, + ) + + +@register_lowering(quantized_decomposed.quantize_per_channel, type_promotion_kind=None) +def quantized_decomposed_quantize_per_channel( + input: TensorBox, + scales: TensorBox, + zero_points: TensorBox, + axis: int, + quant_min: int, + quant_max: int, + dtype: torch.dtype, +) -> Union[TensorBox, ShapeAsConstantBuffer]: + assert len(scales.get_size()) == 1, "expect scales 1 dim" + assert len(zero_points.get_size()) == 1, "expect zero_points 1 dim" + + if input.get_dtype() == torch.bfloat16: + input = to_dtype(input, torch.float32) + assert input.get_dtype() == torch.float32, ( + f"Expecting input to have dtype torch.float32, but got dtype: {input.get_dtype()}" + ) + assert axis < len(input.get_size()), ( + f"Expecting axis to be < {len(input.get_size())}" + ) + + input_loader = input.make_loader() + scales_loader = scales.make_loader() + zero_points_loader = zero_points.make_loader() + + def inner_fn(idx): + channel_idx = (idx[axis],) + + input = input_loader(idx) + scale = scales_loader(channel_idx) + zero_point = zero_points_loader(channel_idx) + qmin, qmax = _create_constants(quant_min, quant_max, dtype=torch.float32) + + if scales.dtype != torch.float32: + scale = ops.to_dtype(scale, torch.float32) + if zero_points.dtype != torch.int32: + zero_point = ops.to_dtype(zero_point, torch.int32) + inv_scale = ops.reciprocal(scale) + val = ops.round(input * inv_scale) + zero_point + clamped = ops.maximum(qmin, ops.minimum(qmax, val)) + return ops.to_dtype(clamped, dtype) + + return Pointwise.create( + device=input.get_device(), + dtype=dtype, + inner_fn=inner_fn, + ranges=input.get_size(), + ) + + +def _assert_async(cond, msg): + cond.realize() + cond = to_dtype(cond, torch.bool) + + def inner_fn(index): + with ir.ComputedBuffer.force_realize(): + return ops.device_assert_async(cond.make_loader()(index), msg) + + assertion_op = Pointwise.create( + device=cond.get_device(), + dtype=cond.get_dtype(), + inner_fn=inner_fn, + ranges=list(cond.get_size()), + ) + assertion_op.realize() + return assertion_op + + +@register_lowering(aten._assert_async.msg) +def lower_assert_async(cond, msg): + return _assert_async(cond, msg) + + +@register_lowering(aten._functional_assert_async.msg) +def lower_assert_functional_async(cond, msg): + return _assert_async(cond, msg) + + +@register_lowering( + quantized_decomposed.dequantize_per_channel, type_promotion_kind=None +) +def quantized_decomposed_dequantize_per_channel( + input: TensorBox, + scales: TensorBox, + zero_points: TensorBox, + axis: int, + quant_min: int, + quant_max: int, + dtype: torch.dtype, + *, + out_dtype: Optional[torch.dtype] = None, +) -> Union[TensorBox, ShapeAsConstantBuffer]: + assert len(scales.get_size()) == 1, "expect scales 1 dim" + assert len(zero_points.get_size()) == 1, "expect zero_points 1 dim" + assert input.get_dtype() == dtype, ( + f"Expecting input to have dtype {dtype}, but got dtype: {input.get_dtype()}" + ) + assert axis < len(input.get_size()), ( + f"Expecting axis to be < {len(input.get_size())}" + ) + + if out_dtype is None: + out_dtype = torch.float32 + + input_loader = input.make_loader() + scales_loader = scales.make_loader() + zero_points_loader = zero_points.make_loader() + + def inner_fn(idx): + channel_idx = (idx[axis],) + + input = input_loader(idx) + scale = scales_loader(channel_idx) + zero_point = zero_points_loader(channel_idx) + + if scales.dtype != torch.float32: + scale = ops.to_dtype(scale, torch.float32) + if zero_points.dtype != torch.float32: + zero_point = ops.to_dtype(zero_point, torch.float32) + val = ops.sub(ops.to_dtype(input, torch.float32), zero_point) * scale + val = ops.to_dtype(val, out_dtype) + return val + + return Pointwise.create( + device=input.get_device(), + dtype=out_dtype, + inner_fn=inner_fn, + ranges=input.get_size(), + ) + + +@register_lowering( + quantized_decomposed.quantize_per_tensor.default, type_promotion_kind=None +) +def quantized_decomposed_quantize_per_tensor_default( + input: TensorBox, + scale: float, + zero_point: int, + quant_min: int, + quant_max: int, + dtype: torch.dtype, +) -> Union[TensorBox, ShapeAsConstantBuffer]: + if input.get_dtype() == torch.bfloat16: + input = to_dtype(input, torch.float32) + assert input.get_dtype() == torch.float32, ( + f"Expecting input to have dtype torch.float32, but got dtype: {input.get_dtype()}" + ) + + input_loader = input.make_loader() + + def inner_fn(idx, scale, zero_point): + input = input_loader(idx) + inv_scale, zero_point = _create_constants( + 1.0 / scale, zero_point, dtype=torch.float32 + ) + val = ops.round(input * inv_scale) + zero_point + qmin, qmax = _create_constants(quant_min, quant_max, dtype=torch.float32) + clamped = ops.minimum(ops.maximum(val, qmin), qmax) + return ops.to_dtype(clamped, dtype) + + return Pointwise.create( + device=input.get_device(), + dtype=dtype, + inner_fn=functools.partial( + inner_fn, scale=float(scale), zero_point=int(zero_point) + ), + ranges=input.get_size(), + ) + + +@register_lowering( + quantized_decomposed.dequantize_per_tensor.default, type_promotion_kind=None +) +def quantized_decomposed_dequantize_per_tensor_default( + input: TensorBox, + scale: float, + zero_point: int, + quant_min: int, + quant_max: int, + dtype: torch.dtype, + *, + out_dtype: Optional[torch.dtype] = None, +) -> Union[TensorBox, ShapeAsConstantBuffer]: + assert input.get_dtype() == dtype, ( + f"Expecting input to have dtype {dtype}, but got dtype: {input.get_dtype()}" + ) + + if out_dtype is None: + out_dtype = torch.float32 + + input_loader = input.make_loader() + + def inner_fn(idx, scale, zero_point): + input = input_loader(idx) + scale, zero_point = _create_constants(scale, zero_point, dtype=torch.float32) + val = ops.sub(ops.to_dtype(input, torch.float32), zero_point) * scale + val = ops.to_dtype(val, out_dtype) + return val + + return Pointwise.create( + device=input.get_device(), + dtype=out_dtype, + inner_fn=functools.partial( + inner_fn, scale=float(scale), zero_point=int(zero_point) + ), + ranges=input.get_size(), + ) + + +@register_lowering( + quantized_decomposed.quantize_per_tensor.tensor, type_promotion_kind=None +) +def quantized_decomposed_quantize_per_tensor_tensor( + input: TensorBox, + scale: TensorBox, + zero_point: TensorBox, + quant_min: int, + quant_max: int, + dtype: torch.dtype, +) -> Union[TensorBox, ShapeAsConstantBuffer]: + if input.get_dtype() == torch.bfloat16: + input = to_dtype(input, torch.float32) + assert input.get_dtype() == torch.float32, ( + f"Expecting input to have dtype torch.float32, but got dtype: {input.get_dtype()}" + ) + assert len(scale.get_size()) == 0 or ( + len(scale.get_size()) == 1 and scale.get_size()[0] == 1 + ), "expect scale as scalar tensor" + assert len(zero_point.get_size()) == 0 or ( + len(zero_point.get_size()) == 1 and zero_point.get_size()[0] == 1 + ), "expect zero_point as scalar tensor" + + input_loader = input.make_loader() + scale_loader = scale.make_loader() + zero_point_loader = zero_point.make_loader() + + def inner_fn(idx): + input = input_loader(idx) + _scale = scale_loader((0,) if len(scale.get_size()) == 1 else ()) + _zero_point = zero_point_loader((0,) if len(scale.get_size()) == 1 else ()) + if scale.dtype != torch.float32: + _scale = ops.to_dtype(_scale, torch.float32) + if zero_point.dtype != torch.float32: + _zero_point = ops.to_dtype(_zero_point, torch.float32) + val = ops.round(input * ops.reciprocal(_scale)) + _zero_point + qmin, qmax = _create_constants(quant_min, quant_max, dtype=torch.float32) + clamped = ops.minimum(ops.maximum(val, qmin), qmax) + return ops.to_dtype(clamped, dtype) + + return Pointwise.create( + device=input.get_device(), + dtype=dtype, + inner_fn=inner_fn, + ranges=input.get_size(), + ) + + +@register_lowering( + quantized_decomposed.dequantize_per_tensor.tensor, type_promotion_kind=None +) +def quantized_decomposed_dequantize_per_tensor_tensor( + input: TensorBox, + scale: TensorBox, + zero_point: TensorBox, + quant_min: int, + quant_max: int, + dtype: torch.dtype, + *, + out_dtype: Optional[torch.dtype] = None, +) -> Union[TensorBox, ShapeAsConstantBuffer]: + assert len(scale.get_size()) == 0 or ( + len(scale.get_size()) == 1 and scale.get_size()[0] == 1 + ), "expect scale as scalar tensor" + assert len(zero_point.get_size()) == 0 or ( + len(zero_point.get_size()) == 1 and zero_point.get_size()[0] == 1 + ), "expect zero_point as scalar tensor" + assert input.get_dtype() == dtype, ( + f"Expecting input to have dtype {dtype}, but got dtype: {input.get_dtype()}" + ) + + if out_dtype is None: + out_dtype = torch.float32 + + input_loader = input.make_loader() + scale_loader = scale.make_loader() + zero_point_loader = zero_point.make_loader() + + def inner_fn(idx): + input = input_loader(idx) + _scale = scale_loader((0,) if len(scale.get_size()) == 1 else ()) + _zero_point = zero_point_loader((0,) if len(scale.get_size()) == 1 else ()) + if scale.dtype != torch.float32: + _scale = ops.to_dtype(_scale, torch.float32) + if zero_point.dtype != torch.float32: + _zero_point = ops.to_dtype(_zero_point, torch.float32) + val = ops.sub(ops.to_dtype(input, torch.float32), _zero_point) * _scale + val = ops.to_dtype(val, out_dtype) + return val + + return Pointwise.create( + device=input.get_device(), + dtype=out_dtype, + inner_fn=inner_fn, + ranges=input.get_size(), + ) + + +@register_lowering(aten.cat) +def cat(inputs, dim=0): + cpu_device = inputs[0].get_device().type == "cpu" + if cpu_device and all( + input.get_dtype() in [torch.int8, torch.uint8] for input in inputs + ): + # TODO Remove this fallback when we support vectorization + # code gen with uint8 data type directly. + for input in inputs: + input.realize() + if all(len(input.get_size()) == 4 for input in inputs): + inputs, _ = require_channels_last(aten.cat, *inputs) + return fallback_handler(aten.cat.default)(inputs, dim) + + if len(inputs) == 1: + return clone(inputs[0]) + + dim = _validate_dim(inputs[0], dim, 0) + dtype = get_promoted_dtype( + *inputs, type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.DEFAULT + ) + inputs = [to_dtype(inp, dtype) for inp in inputs] + + def unwrap_tensor(x: Union[TensorBox, ir.StorageBox]) -> ir.IRNode: + if isinstance(x, TensorBox): + if isinstance(x.data, ir.BaseView): + return x.data.unwrap_view() + else: + return x.data + + if isinstance(x, ir.StorageBox): + return x.data + + return x + + def is_reduction(t): + return isinstance(t, ir.ComputedBuffer) and isinstance(t.data, ir.Reduction) + + def can_fuse_reduction(t): + if isinstance(t, (TensorBox, ir.StorageBox)): + return can_fuse_reduction(unwrap_tensor(t)) + return ( + is_reduction(t) + or isinstance(t, ir.Pointwise) + and any( + can_fuse_reduction(V.graph.get_buffer(read)) + for read in t.get_read_names() + ) + ) + + # fusing reducutions into computed concat buffer can cause regressions. + fusable_reduction = any(can_fuse_reduction(t) for t in inputs) + + def should_lower_cat_input(x) -> bool: + # Unrealized inputs will not be storage and layouts, and we dont want to realize + # them in case we want to fuse + if ir.is_storage_and_layout(x): + storage, _ = ir.as_storage_and_layout(x, freeze=False) + return not ir.ConcatKernel.can_realize_into_without_copy(storage) + + if isinstance(x, (TensorBox, ir.StorageBox)): + return should_lower_cat_input(unwrap_tensor(x)) + + if isinstance(x, ir.Pointwise): + return True + + return False + + if config.force_pointwise_cat: + return pointwise_cat(inputs, dim) + + # TODO: We observed negative performance impact of pointwise_cat optimization on CPU so disabled it. + # We will revisit this later after enabling vectorization on index_expr. + if cpu_device: + return TensorBox(ir.ConcatKernel.create(inputs, dim)) + + def op_count(x): + if isinstance(x, (TensorBox, ir.StorageBox)): + return op_count(unwrap_tensor(x)) + + # this will correspond to a direct memory read + if not isinstance(x, ir.Pointwise): + return 0 + + count = x.inner_fn_opcount().num_ops + for read in x.get_read_names(): + count += op_count(V.graph.get_buffer(read)) + + return count + + # as of inputs increase, possibility for register spilling also increases + # past a certain threshold of inputs we only fuse if the if the input kernels + # are simple + # not sure if we want to expose to users via config since logic may change in future + MAX_COMPLEX_POINTWISE_CAT = 8 + MAX_SIMPLE_OP_COUNT = 2 + + def additional_pointwise_ops(op: torch._ops.OpOverload): + return op in (aten.cat.default, aten.constant_pad_nd.default) + + if len(inputs) <= MAX_COMPLEX_POINTWISE_CAT or ( + (len(inputs) <= config.max_pointwise_cat_inputs) + and all(op_count(t) <= MAX_SIMPLE_OP_COUNT for t in inputs) + ): + pointwise_uses = all( + is_pointwise_use(use, additional_pointwise_ops) + for use in V.current_node.users + ) + # fuse in case we will be used in a pointwise node, and there are any inputs we + # we can prevent materialization of. + fuse_pointwise_use = ( + any(should_lower_cat_input(inp) for inp in inputs) and pointwise_uses + ) + + # horizontal fuse in case all inputs will require a copy kernel anyway. + # only horizontally fuse pointwise kernels + horizontal_fuse_cat = all( + should_lower_cat_input(inp) for inp in inputs + ) and not any(can_fuse_reduction(t) for t in inputs) + if fuse_pointwise_use or (horizontal_fuse_cat and not fusable_reduction): + return pointwise_cat(inputs, dim) + + return TensorBox(ir.ConcatKernel.create(inputs, dim)) + + +@register_lowering(aten.diagonal, type_promotion_kind=None) +def diagonal(input, offset: int = 0, dim1: int = 0, dim2: int = 1): + original_shape = input.get_size() + num_dims = len(original_shape) + dim1 = canonicalize_dim(idx=dim1, rank=num_dims) + dim2 = canonicalize_dim(idx=dim2, rank=num_dims) + + check( + dim1 != dim2, lambda: f"diagonal dimensions cannot be identical {dim1}, {dim2}" + ) + + offset_negative = V.graph.sizevars.evaluate_expr(sympy.Lt(offset, 0)) + if offset_negative: + diag_size = V.graph.sizevars.evaluate_max( + V.graph.sizevars.evaluate_min( + original_shape[dim1] + offset, original_shape[dim2] + ), + 0, # type: ignore[arg-type] + ) + else: + diag_size = V.graph.sizevars.evaluate_max( + V.graph.sizevars.evaluate_min( + original_shape[dim1], original_shape[dim2] - offset + ), + 0, # type: ignore[arg-type] + ) + + base_idx = (0, 0) + if offset_negative: + base_idx = (-offset, 0) + else: + base_idx = (0, offset) + + sizes = [s for i, s in enumerate(original_shape) if i not in (dim1, dim2)] + sizes.append(diag_size) + + def reindexer(idx): + diag_idx = idx[-1] + original_idx = [0] * len(original_shape) + cur_dim = 0 + for d in range(num_dims): + if d == dim1: + original_idx[d] = diag_idx + base_idx[0] + elif d == dim2: + original_idx[d] = diag_idx + base_idx[1] + else: + original_idx[d] = idx[cur_dim] + cur_dim += 1 + + assert cur_dim == len(original_shape) - 2 + return original_idx + + return TensorBox(ir.GenericView.create(input, sizes, reindexer)) + + +@register_lowering(aten.diagonal_copy, type_promotion_kind=None) +def diagonal_copy(input, offset: int = 0, dim1: int = 0, dim2: int = 1): + return clone(diagonal(input, offset, dim1, dim2)) + + +@register_lowering(aten.diagonal_scatter, type_promotion_kind=None) +def diagonal_scatter(input, src, offset: int = 0, dim1: int = 0, dim2: int = 1): + output = clone(input) + target = diagonal(output, offset, dim1, dim2) + mutate_to(target, src) + return output + + +@register_lowering(aten.select, type_promotion_kind=None) +def select(x, dim, idx): + idx = sympy.expand(idx) + size = sympy.expand(x.get_size()[dim]) + actual_index = None + + if V.graph.sizevars.guard_or_false(sympy.Lt(idx, 0)): + actual_index = idx + size + elif V.graph.sizevars.guard_or_false(sympy.Ge(idx, 0)): + actual_index = idx + + if actual_index is not None: + if has_free_unbacked_symbols(idx): + # Inductor could generate incorrect views for tensors with unbacked symbols here; + # Squeeze operations are translated to views, resulting in incorrect strides. + # Additionally, we want to avoid accidental unbacked unsqueeze semantics. To resolve this, + # we use as_strided instead. + # Removing this branch will cause test_unbacked_select_index_with_check to fail. + + # before accessing size, stride, and offset we need to realize. + x.realize() + new_size = x.get_size() + new_stride = x.get_stride() + new_storage_offset = x.get_layout().offset + new_stride[dim] * actual_index + + del new_size[dim] + del new_stride[dim] + return as_strided(x, new_size, new_stride, new_storage_offset) + else: + # no need to clamp, this function handles negative indexing itself + slice_result = slice_(x, dim, actual_index, actual_index + 1, clamp=False) + return squeeze(slice_result, dim) + + # Unbacked Semantics: + # When the index idx is unbacked (e.g., u0), we compute the index dynamically + # during the lowering of the select operation using DynamicSelectStorageOffset. + + unbacked_bindings = resolve_unbacked_bindings( + V.graph.sizevars.shape_env, V.graph.current_node.meta["unbacked_bindings"] + ) + assert unbacked_bindings is not None + assert len(unbacked_bindings) == 1, unbacked_bindings + unbacked_offset_sym, _ = next(iter(unbacked_bindings.items())) + + # before accessing size, stride, and offset we need to realize. + x.realize() + new_size = x.get_size() + new_stride = x.get_stride() + new_storage_offset = unbacked_offset_sym + buffer = ir.DynamicSelectStorageOffset( + unbacked_offset_sym, + idx, + x.get_layout().offset, + new_stride[dim], + x.get_size()[dim], + clamp=False, + ) + buffer.name = V.graph.register_buffer(buffer) + V.graph.register_operation(buffer) + + del new_size[dim] + del new_stride[dim] + return as_strided(x, new_size, new_stride, new_storage_offset) + + +@register_lowering(aten.split, type_promotion_kind=None) +def split(x, sizes, dim=0): + dim = _validate_dim(x, dim, 0) + sizes_ = sizes + + # If sizes is an integer (or a SymInt), we turn it into a list of sizes + # by computing what the actual size of each chunk should be. + if not isinstance(sizes, (list, tuple)): + x_size = x.get_size()[dim] + chunks = V.graph.sizevars.guard_int(FloorDiv(x_size + sizes - 1, sizes)) + sizes_ = [sizes] * chunks + # The last chunk might have a smaller size than the rest. + sizes_[-1] = x_size - (chunks - 1) * sizes + + # From this point, we assume that the sum of the sizes of all chunks + # equals the size of the base tensor. + result = [] + start = 0 + for size in sizes_: + end = start + size + # No need for clamping here, since we compute the exact + # start and end values. + result.append(slice_(x, dim, start, end, clamp=False)) + start = end + return result + + +@register_lowering(aten.split_with_sizes, type_promotion_kind=None) +def split_with_sizes(x, sizes, dim=0): + return split(x, sizes, dim) + + +@register_lowering(aten.unbind, type_promotion_kind=None) +def unbind(x, dim=0): + dim = _validate_dim(x, dim, 0) + x_size = V.graph.sizevars.guard_int(x.get_size()[dim]) + result = [select(x, dim, i) for i in range(x_size)] + return result + + +@register_lowering(aten.unfold, type_promotion_kind=None) +def unfold(x, dimension, size, step): + sizes = x.get_size() + ndim = len(sizes) + dim = canonicalize_dim(ndim, dimension) + + if ndim == 0: + return slice_(unsqueeze(x, 0), end=size, clamp=False) + + dim_size = sizes[dim] + sizevars = V.graph.sizevars + sizevars.check_leq(size, dim_size) + sizevars.check_lt(0, step) # type: ignore[arg-type] + + new_dim_size = FloorDiv(dim_size - size, step) + 1 + if sizevars.size_hint_or_throw(dim_size) > 0: + x.mark_reuse( + sizevars.size_hint_or_throw(CeilDiv(new_dim_size * size, dim_size)) + ) + + out_size = [*sizes[:dim], new_dim_size, *sizes[dim + 1 :], size] + + def reindexer(idx): + dim_idx = idx[-1] + idx[dim] * step + return (*idx[:dim], dim_idx, *idx[dim + 1 : -1]) + + return TensorBox(ir.GenericView.create(x, out_size, reindexer)) + + +@register_lowering(aten.unsqueeze, type_promotion_kind=None) +def unsqueeze(x, dim): + dim = _validate_dim(x, dim, 1) + new_shape = list(x.get_size()) + new_shape.insert(dim, sympy.S.One) + return view(x, new_shape) + + +@register_lowering(aten.unsqueeze_, type_promotion_kind=None) +def unsqueeze_(x, dim): + val = unsqueeze(x, dim) + assert isinstance(x, TensorBox) + assert isinstance(val, TensorBox) + x.data = val.data + return x + + +def _validate_dim(x, dim, offset=0): + dim = V.graph.sizevars.shape_env.evaluate_expr(sympy.sympify(dim)) + ndim = len(x.get_size()) + if dim < 0: + dim += ndim + offset + assert 0 <= dim < ndim + offset + return dim + + +@register_lowering(aten.glu) +def glu(x, dim=-1): + dim = _validate_dim(x, dim, 0) + # TODO: don't guard on static shape here + new_len = V.graph.sizevars.guard_int(x.get_size()[dim]) // 2 + # no need to clamp, index is int based on input size + a = slice_(x, dim, 0, new_len, clamp=False) + b = slice_(x, dim, new_len, new_len * 2, clamp=False) + return mul(a, sigmoid(b)) + + +def fallback_handler(kernel, add_to_fallback_set=True): + if add_to_fallback_set: + fallbacks.add(kernel) + + def handler(*args, **kwargs): + def wrap_tensors(x): + return TensorBox.create(x) if isinstance(x, ir.IRNode) else x + + return pytree.tree_map( + wrap_tensors, ir.FallbackKernel.create(kernel, *args, **kwargs) + ) + + # This lets us detect that a lowering is a fallback handler. + handler._is_fallback_handler = True # type: ignore[attr-defined] + + return handler + + +@functools.cache +def _warn_complex_not_supported(): + warnings.warn( + "Torchinductor does not support code generation for complex operators. Performance may be worse than eager." + ) + + +# There are some types (CPU) which we accept as input but not as +# output. +def unsupported_input_tensor(t: torch.Tensor, node=None): + "Do not support reading or writing to this tensor" + if t.is_complex(): + # Complex views are supported with IR ComplexView + _warn_complex_not_supported() + return True + + if t.is_meta: + return True + + if t.is_sparse: + return True + + if t.dtype == torch.float8_e8m0fnu: + if not node: + return True + + # allow bitcast, views, memory movement, but not arithmetic + # TODO: delete once triton adds native support + return not ( + isinstance(node.target, torch._ops.OpOverload) + and node.target + in ( + aten.view.dtype, + aten.cat.default, + aten.clone.default, + aten._scaled_mm.default, + ) + or (isinstance(node.target, torch._ops.OpOverload) and is_view(node.target)) + ) + + return False + + +def unsupported_output_tensor(t: torch.Tensor, node=None): + "Do not support writing tensor but can read from it" + supported_complex_views = ( + aten.view.dtype, + torch.ops.prims.convert_element_type.default, + ) + if node is not None and node.target in supported_complex_views and t.is_complex(): + return False + if unsupported_input_tensor(t, node): + return True + return t.is_cpu and config.disable_cpp_codegen + + +def fallback_node_due_to_unsupported_type(node: torch.fx.Node, allow_cpu_inputs=True): + # Custom fallback lowering + if node.target is aten.view_as_complex.default: + return False + + if node.op == "placeholder": + return False + + # We should be able to remove this special case once `disable_cpp_codegen` is killed. + if node.target is aten.lift_fresh_copy.default: + return False + + def check_skip_condition(inp_out_node, is_output): + if not isinstance(inp_out_node, torch.fx.Node): + return False + + if "val" not in inp_out_node.meta: + return False + + for meta in pytree.tree_leaves(inp_out_node.meta["val"]): + if not isinstance(meta, torch._subclasses.FakeTensor): + continue + + if is_output: + if unsupported_output_tensor(meta, node): + return True + else: + if unsupported_input_tensor(meta, node): + return True + + return False + + # only skip codegen if there is a cpu output, not input + for arg in pytree.arg_tree_leaves(*node.args, **node.kwargs): + if check_skip_condition(arg, is_output=False): + return True + + return check_skip_condition(node, is_output=True) + + +def make_fallback(op, layout_constraint=None, warn=True, override_decomp=False): + assert op not in decompositions or override_decomp, ( + f"both a fallback and a decomp for same op: {op}" + ) + if ( + warn + and bool(os.getenv("CI")) + and get_decompositions([op]) + # if fallback_random, we allow not decomposing random + and not ( + config.fallback_random + and op in torch._decomp.decompositions_for_rng.extra_random_decomps + ) + and not override_decomp + ): + # Note: 'warn' is holdover from when this was a warning, but for ops that previously + # set warn=False we do not want a CI error. + # Ignore the 'suppress errors' configs in CI, as this particular warning happens on startup anyway and is not + # likely to be triggered preferentially on one CI config over another. + if torch._dynamo.config.suppress_errors: + torch._dynamo.config.suppress_errors = False + log.warning( + "A make_fallback error occurred in suppress_errors config," + " and suppress_errors is being disabled to surface it." + ) + raise AssertionError( + f"make_fallback({op}): a decomposition exists, we should switch to it." + " To fix this error, either add a decomposition to core_aten_decompositions (preferred)" + " or inductor_decompositions, and delete the corresponding `make_fallback` line." + " Get help from the inductor team if unsure, don't pick arbitrarily to unblock yourself.", + ) + + def register_fallback(op_overload): + add_needs_realized_inputs(op_overload) + if layout_constraint is not None: + add_layout_constraint(op_overload, layout_constraint) + return register_lowering(op_overload, type_promotion_kind=None)( + fallback_handler(op_overload) + ) + + if isinstance(op, torch._ops.OpOverloadPacket): + for ol in op.overloads(): + op_overload = getattr(op, ol) + register_fallback(op_overload) + elif isinstance(op, (torch._ops.OpOverload, torch._ops.HigherOrderOperator)): + register_fallback(op) + else: + raise RuntimeError(f"Unsupported fallback {op} with type {type(op)}") + + +def philox_rand_offset(shape): + """ + TorchInductor offset calculation differs from PyTorch eager offset + calculation for random ops (tl.rand vs torch.rand). In future, we should + strive for same impl for tl.rand and torch.rand. + """ + numel = 1 + for s in shape: + numel = numel * s + return tensor(numel, dtype=torch.int64) + + +@register_lowering(torch.ops.rngprims.philox_rand, type_promotion_kind=None) +def philox_rand(size, seed, offset, stride, device, dtype): + # stride arg is optional and will be used in future for distributed random + # ops. Currently, its unused. + random_pos = ir.FixedLayout( + device, + dtype, + size, + ir.FlexibleLayout.contiguous_strides(size), + ).make_indexer() + seed_loader = seed.make_loader() + offset_loader = offset.make_loader() + + def inner_fn(index): + # Both seed and offset in the philox_rand op are tensors. + # torch seed and offsets are of type int64, but tl.rand accepts int32 + seed_index_expr = ops.to_dtype(seed_loader([]), torch.int32) + offset_index_expr = ops.to_dtype(offset_loader([]), torch.int32) + # Get the offset'd position + rand_index_expr = ops.add( + ops.index_expr(random_pos(index), torch.int32), offset_index_expr + ) + result = ops.rand( + seed_index_expr, + rand_index_expr, + ) + return ops.to_dtype(result, dtype) + + random_values_node = Pointwise.create( + device=device, + dtype=dtype, + inner_fn=inner_fn, + ranges=list(size), + ) + + offset_node = philox_rand_offset(size) + return random_values_node, offset_node + + +@register_lowering(aten.native_dropout, type_promotion_kind=None) +def native_dropout(x, p, train): + if config.fallback_random: + return pytree.tree_map( + TensorBox.create, + ir.FallbackKernel.create(aten.native_dropout.default, x, p, train), + ) + else: + raise AssertionError("should be handled in replace_random.py") + + +@register_lowering(aten.bernoulli_, type_promotion_kind=None) +def bernoulli_(x, *args): + assert config.fallback_random or x.get_device() == torch.device("cpu"), ( + "this should be handled in decomps unless config.fallback_random or the device is CPU" + ) + x.realize() + op_overload = ( + aten.bernoulli_.float + if len(args) == 0 or isinstance(args[0], float) + else aten.bernoulli_.Tensor + ) + ir.InplaceBernoulliFallback(op_overload, x, *args) + return x + + +@register_lowering(aten.bernoulli.p, type_promotion_kind=None) +def bernoulli_p(x, *args): + assert config.fallback_random or x.get_device() == torch.device("cpu"), ( + "this should be handled in decomps unless config.fallback_random or the device is CPU" + ) + return bernoulli_(clone(x), *args) + + +# This shouldn't be called in general +@register_lowering(aten._foobar) +def _foobar(_): + raise AssertionError + + +@functools.lru_cache(1) +def _warn_triton_random(salt): + log.info("using triton random, expect difference from eager") + + +def warn_triton_random(): + # only warn once per graph + _warn_triton_random(V.graph.creation_time) + + +fallback_rand_default = fallback_handler(aten.rand.default) +fallback_rand_generator = fallback_handler(aten.rand.generator) +fallback_randn_default = fallback_handler(aten.randn.default) +fallback_randn_generator = fallback_handler(aten.randn.generator) +make_fallback(aten.randint) + +# TODO: mlazos reevaluate if we want to codegen something different +make_fallback(torch.ops.streams.record_event.default) +make_fallback(torch.ops.streams.wait_event.default) + + +@register_lowering(aten.rand) +def rand(*args, **kwargs): + if kwargs.get("generator") is not None: + return fallback_rand_generator(*args, **kwargs) + elif config.fallback_random: + kwargs.pop("generator", None) + return fallback_rand_default(*args, **kwargs) + raise AssertionError("should have been handled in replace_random.py") + + +@register_lowering(aten.randn) +def randn(*args, **kwargs): + if kwargs.get("generator") is not None: + return fallback_randn_generator(*args, **kwargs) + elif config.fallback_random: + kwargs.pop("generator", None) + return fallback_randn_default(*args, **kwargs) + raise AssertionError("should have been handled in replace_random.py") + + +@register_lowering(inductor_prims.force_stride_order, type_promotion_kind=None) +def inductor_force_stride_order(input_tensor, stride): + stride_order = ir.get_stride_order(stride) + return ir.ExternKernel.require_stride_order(input_tensor, stride_order) + + +@register_lowering(inductor_prims.seed, type_promotion_kind=None) +def inductor_seed(device: torch.device): + raise AssertionError("should be handled in fuse_seed_creation_pass()") + + +@register_lowering(inductor_prims.seeds, type_promotion_kind=None) +def inductor_seeds(count, device): + warn_triton_random() + return TensorBox.create(ir.RandomSeeds(count, decode_device(device))) + + +@register_lowering(inductor_prims.lookup_seed, type_promotion_kind=None) +def inductor_lookup_seed(seeds, index): + def inner_fn(_): + return ops.load_seed(seeds.get_name(), index) + + return Pointwise.create( + device=seeds.get_device(), + dtype=seeds.get_dtype(), + inner_fn=inner_fn, + ranges=[], + ) + + +@register_lowering(inductor_prims.random, type_promotion_kind=None) +def inductor_random(size: list[int], seed: TensorBox, mode: str, *, offset: int = 0): + assert not config.fallback_random + assert mode in ("rand", "randn") + size = [*size] + dtype = torch.float32 + device = seed.get_device_or_error() + random_pos = ir.FixedLayout( + device, dtype, size, ir.FlexibleLayout.contiguous_strides(size), offset=offset + ).make_indexer() + seed_loader = seed.make_loader() + + def inner_fn(index): + return getattr(ops, mode)( + seed_loader([]), + ops.index_expr(random_pos(index), torch.int32), + ) + + result = Pointwise.create( + device=device, + dtype=dtype, + inner_fn=inner_fn, + ranges=[*size], + ) + result.realize() + return result + + +@register_lowering(inductor_prims.randint, type_promotion_kind=None) +def inductor_randint( + low: int, high: int, size: list[int], seed: TensorBox, *, offset: int = 0 +): + assert not config.fallback_random + size = [*size] + dtype = torch.int64 + device = seed.get_device_or_error() + random_pos = ir.FixedLayout( + device, dtype, size, ir.FlexibleLayout.contiguous_strides(size), offset=offset + ).make_indexer() + seed_loader = seed.make_loader() + + def inner_fn(index): + return ops.randint64( + seed_loader([]), + ops.index_expr(random_pos(index), torch.int32), + ops.index_expr(low, torch.int64), + ops.index_expr(high, torch.int64), + ) + + return Pointwise.create( + device=device, + dtype=dtype, + inner_fn=inner_fn, + ranges=[*size], + ) + + +def _boundaries_helper(tb: TensorBox) -> tuple[str, sympy.Expr, sympy.Expr, sympy.Expr]: + # Calculate the maximum offset for the boundaries tensor + # For a strided tensor, this is sum((size[i] - 1) * stride[i]) + stride[-1] + # This ensures the mask check in bucketize_binary_search works correctly + # for both contiguous and non-contiguous tensors. + size = tb.get_size() + stride = tb.get_stride() + max_offset = sum((s - 1) * st for s, st in zip(size, stride)) + stride[-1] + return ( + tb.get_name(), + size[-1], + max_offset, + stride[-1], + ) + + +def _sorter_helper(tb: TensorBox) -> tuple[str, sympy.Expr]: + return tb.get_name(), tb.get_stride()[-1] + + +@register_lowering(aten.searchsorted.Tensor, type_promotion_kind=None) +def searchsorted( + sorted_sequence: TensorBox, + self: TensorBox, + *, + out_int32: bool = False, + right: bool = False, + side: Optional[str] = None, + sorter: Optional[TensorBox] = None, +) -> Union[TensorBox, ShapeAsConstantBuffer]: + validate_bucketize = lambda tb: V.graph.has_feature( # noqa: E731 + tb, BackendFeature.BUCKETIZE + ) + if ( + not validate_bucketize(sorted_sequence) + or not validate_bucketize(self) + or (sorter is not None and not validate_bucketize(sorter)) + ): + return fallback_handler(aten.searchsorted.Tensor, add_to_fallback_set=False)( + sorted_sequence, + self, + out_int32=out_int32, + right=right, + side=side, + sorter=sorter, + ) + + # If side is present, override the value of right if needed. This assumes that + # validation of the two options being non-contradictory is already done by the + # searchsorted meta-function. + if side is not None and side == "right": + right = True + + index_dtype = torch.int32 if out_int32 else torch.int64 + values_loader = self.make_loader() + + # The entire sorted_sequence tensor needs to be used by ops.bucketize, so we need to + # realize it into global memory; or in other words, we can't guarantee that + # sorted_sequence.get_name() (used below) will exist unless we call + # sorted_sequence.realize(). + sorted_sequence.realize() + + if sorter is not None: + sorter.realize() + + if len(sorted_sequence.get_size()) == 1: + + def inner_fn(idx): + val = values_loader(idx) + return ops.bucketize( + val, + _boundaries_helper(sorted_sequence), + 0, + index_dtype, + right, + sorter=None if sorter is None else _sorter_helper(sorter), + sorter_indices=None if sorter is None else 0, + ) + + else: + + def inner_fn(idx): + val = values_loader(idx) + + # Get index to the beginning of the sorted sequence within a flattened + # version of the array. + def get_flattened_index(tb: TensorBox): + strides = tb.get_stride() + return ops.index_expr( + functools.reduce( + operator.add, (s * i for s, i in zip(strides[:-1], idx[:-1])) + ), + index_dtype, + ) + + return ops.bucketize( + val, + _boundaries_helper(sorted_sequence), + get_flattened_index(sorted_sequence), + index_dtype, + right, + sorter=None if sorter is None else _sorter_helper(sorter), + sorter_indices=None if sorter is None else get_flattened_index(sorter), + ) + + device = self.get_device() + result = Pointwise.create( + device=device, + dtype=index_dtype, + inner_fn=inner_fn, + ranges=self.shape, + ) + # see [NOTE: inductor bucketize realize] + result.realize() + + return result + + +@register_lowering( + aten.bucketize, type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.NO_OPMATH +) +def bucketize( + input: TensorBox, + boundaries: TensorBox, + *, + out_int32: bool = False, + right: bool = False, +): + assert len(boundaries.get_size()) == 1 + + if not ( + V.graph.has_feature(input, BackendFeature.BUCKETIZE) + and V.graph.has_feature(boundaries, BackendFeature.BUCKETIZE) + ): + return fallback_handler(aten.bucketize.Tensor, add_to_fallback_set=False)( + input, boundaries, out_int32=out_int32, right=right + ) + + # The entire boundaries tensor needs to be used by ops.bucketize, so we + # need to realize it into global memory; or in other words, we can't + # guarantee that boundaries.get_name() (used below) will exist unless + # we call boundaries.realize(). + boundaries.realize() + device = input.get_device() + input_loader = input.make_loader() + + index_dtype = torch.int32 if out_int32 else torch.int64 + + def inner_fn(index): + val = input_loader(index) + indices = ops.bucketize( + val, + _boundaries_helper(boundaries), + 0, + index_dtype, + right, + ) + + return indices + + result = Pointwise.create( + device=device, + dtype=index_dtype, + inner_fn=inner_fn, + ranges=input.get_size(), + ) + + # [NOTE: inductor bucketize realize] + # bucketize_binary_search is relatively expensive, so we don't want to re-compute + # it unnecessarily. If we run bucketize() and then broadcast the result, we don't + # want this to be fused into a large number of duplicate bucketize() computations + # for each of the elements in the result. + # + # If no broadcasting occurs, fusions can still occur in scheduler.py + result.realize() + + return result + + +def require_dense(_, *args, **kwargs): + args, kwargs = pytree.tree_map_only( + ir.IRNode, ir.ExternKernel.require_stride1, (args, kwargs) + ) + return args, kwargs + + +def require_contiguous(_, *args, **kwargs): + args, kwargs = pytree.tree_map_only( + ir.IRNode, ir.ExternKernel.require_contiguous, (args, kwargs) + ) + return args, kwargs + + +def require_contiguous_strides(_, *args, **kwargs): + # TODO: combine this with require_contiguous after + # https://github.com/pytorch/pytorch/pull/148235 lands. + args, kwargs = pytree.tree_map_only( + ir.IRNode, ir.ExternKernel.require_contiguous_strides, (args, kwargs) + ) + return args, kwargs + + +def require_channels_last(_, *args, **kwargs): + args, kwargs = pytree.tree_map_only( + ir.IRNode, ir.ExternKernel.require_channels_last, (args, kwargs) + ) + return args, kwargs + + +def constrain_to_fake_tensor(arg, fake_arg): + if fake_arg is None: + return arg + if isinstance(fake_arg, FakeScriptObject): + return arg + if isinstance(arg, ir.IRNode): + meta_stride_expr = [ + s.node.expr if isinstance(s, torch.SymInt) else s for s in fake_arg.stride() + ] + return ir.ExternKernel.require_exact_strides(arg, meta_stride_expr) + if isinstance(arg, dict): + return {key: constrain_to_fake_tensor(arg[key], fake_arg[key]) for key in arg} + elif isinstance(arg, (tuple, list)): + return type(arg)( + constrain_to_fake_tensor(a, f_a) for (a, f_a) in zip(arg, fake_arg) + ) + return arg + + +def constrain_to_fake_tensors(args, kwargs, fake_args, fake_kwargs): + args = tuple( + constrain_to_fake_tensor(arg, fake_arg) + for arg, fake_arg in zip(args, fake_args) + ) + kwargs = {k: constrain_to_fake_tensor(v, fake_kwargs[k]) for k, v in kwargs.items()} + return args, kwargs + + +def constrain_to_fx_strides(fx_node, *args, **kwargs): + def apply_constraint(arg, fx_arg): + if isinstance(arg, ir.IRNode): + stride_order = ir.get_stride_order( + fx_arg.meta["val"].stride(), V.graph.sizevars.shape_env + ) + return ir.ExternKernel.require_stride_order(arg, stride_order) + if isinstance(arg, dict): + return {key: apply_constraint(arg[key], fx_arg[key]) for key in arg} + return arg + + args = tuple( + apply_constraint(arg, fx_arg) for arg, fx_arg in zip(args, fx_node.args) + ) + kwargs = {k: apply_constraint(v, fx_node.kwargs[k]) for k, v in kwargs.items()} + return args, kwargs + + +def sdpa_constraint(fx_node, *args, **kwargs): + # sdpa requires dense last dimension] + + def apply_constraint(idx, arg, fx_arg): + if not isinstance(arg, ir.IRNode): + return arg + + meta_val = fx_arg.meta["val"] + meta_stride_expr = [ + s.node.expr if isinstance(s, torch.SymInt) else s for s in meta_val.stride() + ] + shape_env = V.graph.sizevars.shape_env + stride_order = ir.get_stride_order(meta_val.stride(), shape_env) + + if stride_order and stride_order[-1] != 0: + # contiguous stride order + stride_order = list(reversed(range(len(arg.get_size())))) + + if ( + fx_node.target + == aten._scaled_dot_product_efficient_attention_backward.default + and idx in (0, 5) + ): + assert len(stride_order) == 4 + # The 0 and 5th arguments for aten._scaled_dot_product_efficient_attention_backward.default + # are for out and gradient_out. They have to be in + # (3, 1, 2, 0) stride order. Otherwise the kernel will crash. + # Check https://github.com/pytorch/pytorch/issues/138772 + stride_order = (3, 1, 2, 0) + + if not meta_val.is_cuda: + return ir.ExternKernel.require_stride_order(arg, stride_order) + + # This is the minimum alignment required by SDPA kernels for attention_bias. + # This value can be found in pytorch/aten/src/ATen/native/transformers/attention.cpp preprocess_mask + ALIGNMENT = 8 + + # effn_attn_fwd does requires dense last dim, not just alignment + effn_attn_fwd_bias = ( + fx_node.target + == torch.ops.aten._scaled_dot_product_efficient_attention.default + and idx == 3 + ) + + assert isinstance(arg, TensorBox) + if len(arg.get_size()) not in (3, 4): + return arg + + is_aligned_tensor = ir.is_aligned_realized_tensor(arg, ALIGNMENT) + if is_aligned_tensor: + return ir.try_match_insignificant_strides( + ir.ExternKernel.realize_input(arg), meta_stride_expr + ) + + if ( + isinstance(arg, IRNode) + and arg.maybe_get_stride() is not None + and is_aligned_tensor + ): + return ir.try_match_insignificant_strides( + ir.ExternKernel.realize_input(arg), meta_stride_expr + ) + + if effn_attn_fwd_bias: + out_size = list(arg.get_size()) + + expanded_dims = [] + # We require a dense last dimension, but the other strides + # can be expanded, which results in a smaller tensor + maybe_stride = arg.maybe_get_stride() + for i in range(len(arg.get_size()) - 1): + if V.graph.sizevars.statically_known_equals(meta_stride_expr[i], 0) or ( + maybe_stride is not None + and V.graph.sizevars.statically_known_equals(maybe_stride[i], 0) + ): + expanded_dims.append(i) + + # Now, pad strides to alignment + out_strides = [-1] * len(out_size) + out_strides[-1] = 1 + stride = 1 + for i in range(len(out_size) - 2, -1, -1): + if out_strides[i + 1] != 0: + stride = stride * out_size[i + 1] + + # the expanded dims still need to be aligned, if they are, + # we can make them expanded by setting the stride equal to 0 + if i in expanded_dims: + if V.graph.sizevars.statically_known_equals( + out_strides[i + 1] % ALIGNMENT, 0 + ): + out_strides[i] = 0 + continue + + if not V.graph.sizevars.statically_known_equals(stride % ALIGNMENT, 0): + stride = ceildiv(stride, ALIGNMENT) * ALIGNMENT + + out_strides[i] = stride + + return ir.ExternKernel.require_exact_strides(arg, out_strides) + + if is_aligned_tensor: + return ir.try_match_insignificant_strides( + ir.ExternKernel.realize_input(arg), meta_stride_expr + ) + + if ( + isinstance(arg, IRNode) + and arg.maybe_get_stride() is not None + and is_aligned_tensor + ): + return ir.try_match_insignificant_strides( + ir.ExternKernel.realize_input(arg), meta_stride_expr + ) + + def is_aligned(x): + return V.graph.sizevars.guard_or_false( + sympy.Eq(Mod(x.get_size()[-1], ALIGNMENT), 0) + ) + + if isinstance(arg.data, ir.BaseView): + if not is_aligned(arg): + if is_aligned(arg.unwrap_view()): + return ir.try_match_insignificant_strides( + ir.ExternKernel.realize_input(arg), meta_stride_expr + ) + + return ir.ExternKernel.require_stride_order(arg, stride_order) + + args = tuple( + apply_constraint(idx, arg, fx_arg) + for idx, (arg, fx_arg) in enumerate(zip(args, fx_node.args)) + ) + kwargs = {k: apply_constraint(-1, v, fx_node.kwargs[k]) for k, v in kwargs.items()} + return args, kwargs + + +# WIP +make_fallback(aten._adaptive_avg_pool3d) # @isuruf +make_fallback(aten.adaptive_max_pool3d) # @isuruf +make_fallback(aten._scaled_dot_product_attention_math_for_mps) # @malfet + + +# 1) Easy +make_fallback(aten.uniform, warn=False) +make_fallback(aten.exponential.default, warn=False) # (fails accuracy on test_torch.py) +make_fallback(aten._pdist_forward) # Has decomp. Needs benchmarks +make_fallback(aten.soft_margin_loss_backward, warn=False) # py_impl? +make_fallback(aten._fused_rms_norm, warn=False) # (MPS-only and faster than decomp) +if torch.xpu.is_available(): + make_fallback( + aten.embedding_dense_backward, warn=False + ) # (XPU-only and faster than decomp) + +if torch.mtia._is_compiled(): + make_fallback( + aten.native_layer_norm, warn=False + ) # (MTIA-only and faster than decomp) + +# 1.5) Easy or Impossible +make_fallback(aten._cdist_forward) # p=2 should be feasible +make_fallback(aten._cdist_backward) + +# 2) Medium +make_fallback(aten._trilinear) + + +# 3) Difficult +# Scans +# See the discussion at +# https://dev-discuss.pytorch.org/t/pytorch-sparse-gnn-compiler-rfc/1644/19 +make_fallback(aten.segment_reduce.default) +make_fallback(aten._segment_reduce_backward.default) + +# Histogram (need to implement Histogram IR) +make_fallback(aten.histc) +make_fallback(aten.histogram.bin_ct) +make_fallback(aten._histogramdd_bin_edges.default) +make_fallback(aten._histogramdd_from_bin_cts.default) + +# Need templated kernel +make_fallback(aten.addbmm) +make_fallback(aten._addmm_activation, warn=False) + +make_fallback(aten._grouped_mm, require_dense) + +# Need templated kernel. Probably impossible to write efficiently +make_fallback(aten.convolution_backward, constrain_to_fx_strides) +make_fallback(aten._cudnn_rnn, require_dense) +make_fallback(aten._cudnn_rnn_backward, require_contiguous) + +# Haven't checked but sound difficult / impossible +make_fallback(aten._embedding_bag, require_contiguous) +make_fallback(aten._embedding_bag_forward_only, require_contiguous) +make_fallback(aten._embedding_bag_backward) +make_fallback(aten._embedding_bag_per_sample_weights_backward) +make_fallback(aten._embedding_bag_per_sample_weights_backward) +make_fallback(aten._fused_moving_avg_obs_fq_helper) +make_fallback(aten._fused_moving_avg_obs_fq_helper_functional) + + +# 4) Backwards (try py_impl'ing them) when fwd is written as a decomp +make_fallback(aten.max_pool3d_with_indices_backward) +make_fallback(aten._adaptive_avg_pool2d_backward, require_dense) +make_fallback(aten._adaptive_avg_pool3d_backward) +make_fallback(aten.adaptive_max_pool2d_backward) +make_fallback(aten.adaptive_max_pool3d_backward) +make_fallback(aten.fractional_max_pool2d_backward) +make_fallback(aten.fractional_max_pool3d_backward) +make_fallback(aten.replication_pad1d_backward) +make_fallback(aten.replication_pad2d_backward) +make_fallback(aten.upsample_linear1d_backward) +make_fallback(aten.upsample_bicubic2d_backward, require_contiguous) +make_fallback(aten.upsample_trilinear3d_backward) +make_fallback(aten.grid_sampler_2d_backward) +make_fallback(aten._pdist_backward) + + +# 5) Impossible (missing triton/CPU features) + +# Sorting / Sorting-like +make_fallback(aten.sort) +make_fallback(aten.sort.stable) +make_fallback(aten.kthvalue) +make_fallback(aten.topk) +make_fallback(aten.mode) +make_fallback(aten.median) +make_fallback(aten.nanmedian) +make_fallback(aten.randperm) +# see: https://github.com/pytorch/pytorch/pull/121354 +make_fallback(aten.resize_) +make_fallback(aten.resize_as_) + +# Linalg +make_fallback(aten._linalg_det) +make_fallback(aten.linalg_householder_product) +make_fallback(aten.linalg_inv_ex) +make_fallback(aten.linalg_ldl_factor_ex) +make_fallback(aten.linalg_ldl_solve) +make_fallback(aten.linalg_lu) +make_fallback(aten.linalg_lu_factor_ex) +make_fallback(aten.linalg_lu_solve) +make_fallback(aten.linalg_matrix_exp) +make_fallback(aten.linalg_qr) +make_fallback(aten._linalg_slogdet) +make_fallback(aten._linalg_solve_ex) +make_fallback(aten.linalg_solve_triangular) +make_fallback(aten._linalg_svd) +make_fallback(aten.lu_unpack) +make_fallback(aten.ormqr) +make_fallback(aten._linalg_check_errors) +make_fallback(aten.linalg_pinv.atol_rtol_tensor) +make_fallback(aten._linalg_eigh) +make_fallback(aten.triangular_solve) +make_fallback(aten.linalg_cholesky_ex) +make_fallback(aten.cholesky_inverse) +make_fallback(aten.cholesky_solve) +make_fallback(aten.geqrf) +make_fallback(aten._fft_r2c) # needs complex as well + +# Data dependent (are these necessary?) +make_fallback(aten.nonzero.default) + +# Misc +make_fallback(aten.gcd.default, warn=False) +make_fallback(aten._thnn_fused_lstm_cell, require_dense) +make_fallback(torch._prims.rng_prims.run_and_save_rng_state) +make_fallback(torch._prims.rng_prims.run_with_rng_state) +make_fallback(torch._prims.rng_prims.graphsafe_run_with_rng_state) + + +# Implemented / Half implemented +# Scans. Implemented for CUDA, missing CPU +make_fallback(aten.masked_scatter) +make_fallback(aten.masked_scatter_backward) + +# Complex number support +make_fallback(aten.view_as_complex, require_contiguous) +make_fallback(aten.angle) # needs complex + +# Needs efficentzerotensor +make_fallback(aten._efficientzerotensor) + +# Needs Sparse +make_fallback(aten._sparse_coo_tensor_with_dims_and_tensors) +make_fallback(aten.to_sparse) +make_fallback(aten._to_sparse) + +# Needs dimname support +make_fallback(aten.zeros.names) + +# 6) Pattern-matched +make_fallback( + aten._scaled_dot_product_efficient_attention.default, + sdpa_constraint, + warn=False, +) +make_fallback( + aten._scaled_dot_product_efficient_attention_backward.default, + sdpa_constraint, + warn=False, +) +make_fallback( + aten._scaled_dot_product_flash_attention.default, + sdpa_constraint, + warn=False, +) +make_fallback( + aten._scaled_dot_product_flash_attention_backward.default, + sdpa_constraint, + warn=False, +) +make_fallback( + aten._scaled_dot_product_cudnn_attention.default, + sdpa_constraint, + warn=False, +) +make_fallback( + aten._scaled_dot_product_cudnn_attention_backward.default, + sdpa_constraint, + warn=False, +) +make_fallback( + aten._scaled_dot_product_flash_attention_for_cpu.default, + sdpa_constraint, + warn=False, +) +make_fallback( + aten._scaled_dot_product_flash_attention_for_cpu_backward.default, + sdpa_constraint, + warn=False, +) +make_fallback( + aten._scaled_dot_product_fused_attention_overrideable.default, + sdpa_constraint, + warn=False, +) +make_fallback( + aten._scaled_dot_product_fused_attention_overrideable_backward.default, + sdpa_constraint, + warn=False, +) +make_fallback(aten._flash_attention_forward.default, sdpa_constraint) +make_fallback(aten._flash_attention_backward.default, sdpa_constraint) +make_fallback(aten._efficient_attention_forward.default, sdpa_constraint) +make_fallback(aten._efficient_attention_backward.default, sdpa_constraint) + +# index_reduce requires fallback when use_scatter_fallback(...) returns True +make_fallback(aten.index_reduce) +make_fallback(aten.repeat_interleave.Tensor, override_decomp=True) + +make_fallback(aten._weight_norm_interface_backward.default, require_contiguous) + + +# Register with type_promotion_kind None. +# For example, fp16.copy_(fp32) should **not** promote the first input's dtype. +@register_lowering(aten.copy, type_promotion_kind=None) +def copy(self, src, non_blocking=False): + if not isinstance(src, ir.IRNode): + src = tensor(src, dtype=self.get_dtype(), device=self.get_device()) + x = src + if self.get_device() != src.get_device(): + # pyrefly: ignore [bad-argument-type] + x = to_device(x, self.get_device()) + if self.get_dtype() != src.get_dtype(): + # pyrefly: ignore [bad-argument-type] + x = to_dtype(x, self.get_dtype()) + + if self.get_size() != src.get_size(): + out = expand(x, self.get_size()) + return clone(out) + return clone(x) + + +@register_lowering(aten.clone) +def clone(x, *, memory_format=None): + # TODO(jansel): memory format + return Pointwise.create( + device=x.get_device(), + dtype=x.get_dtype(), + inner_fn=x.make_loader(), + ranges=list(x.get_size()), + ) + + +def clone_preserve_reinterpret_view(x): + reinterpret_view_layouts = [] + if isinstance(x, TensorBox) and isinstance(x.data, ir.ReinterpretView): + x = x.data # unwrap TensorBox + # pyrefly: ignore [bad-assignment] + while isinstance(x, ir.ReinterpretView): + reinterpret_view_layouts.append(x.get_layout()) + x = x.data + x = TensorBox(x) + + x = clone(x) + + if reinterpret_view_layouts: + x = x.data # unwrap TensorBox + for layout in reinterpret_view_layouts[::-1]: + x = ir.ReinterpretView(data=x, layout=layout) + x = TensorBox(x) + + return x + + +if hasattr(aten, "lift_fresh_copy"): + register_lowering(aten.lift_fresh_copy)(clone) + + +@register_lowering(prims.iota) +def iota( + length, + *, + start, + step, + dtype, + device, + requires_grad, +): + def fn(index): + return ops.index_expr(step * index[0] + start, dtype=dtype) + + return Pointwise.create( + device=decode_device(device), + dtype=dtype, + inner_fn=fn, + ranges=[length], + ) + + +@register_lowering(aten.select_scatter, type_promotion_kind=None) +def select_scatter(x, src, dim: int, index: int): + assert x.get_dtype() == src.get_dtype() + x_loader = x.make_loader() + dim = _validate_dim(x, dim, 0) + if V.graph.sizevars.guard_or_false(sympy.Lt(index, 0)): + index = index + x.get_size()[dim] + elif V.graph.sizevars.guard_or_false(sympy.Ge(index, 0)): + pass + else: + # unbacked index + return fallback_handler(aten.select_scatter.default)(x, src, dim, index) + + V.graph.sizevars.check_leq(0, index) # type: ignore[arg-type] + V.graph.sizevars.check_lt(index, x.get_size()[dim]) # type: ignore[arg-type] + src = expand(unsqueeze(src, dim), x.get_size()) + src_loader = src.make_loader() + + def inner_fn(idx): + return ops.where( + ops.eq( + ops.index_expr(idx[dim], torch.int32), + ops.index_expr(index, torch.int32), + ), + src_loader(idx), + x_loader(idx), + ) + + return Pointwise.create( + device=x.get_device(), + dtype=x.get_dtype(), + inner_fn=inner_fn, + ranges=list(x.get_size()), + ) + + +@register_lowering(aten.slice_scatter, type_promotion_kind=None) +def slice_scatter(x, src, dim=0, start=None, end=None, step=1): + src = to_dtype(src, x.get_dtype()) + x_loader = x.make_loader() + dim = _validate_dim(x, dim, 0) + dim_size = x.get_size()[dim] + + # pyrefly: ignore [bad-argument-type] + start, end = ir.SliceView.normalize_start_end(x, dim, start, end) + + src_size = list(x.get_size()) + src_size[dim] = FloorDiv(end - start + (step - 1), step) + src = expand(src, src_size) + src_loader = src.make_loader() + + def inner_fn(idx): + if start == 0 and end == dim_size and step == 1: + # selecting every element is the same as just src.clone() + return src_loader(idx) + + idx_dim = ops.index_expr(idx[dim], torch.int64) + src_idx = list(idx) + src_idx[dim] = FloorDiv(idx[dim] - start, step) + + mask = [] + if start != 0: + mask.append( + ops.ge( + idx_dim, + ops.index_expr(sympy.expand(start), torch.int64), + ) + ) + if end != dim_size: + mask.append( + ops.lt( + idx_dim, + ops.index_expr(sympy.expand(end), torch.int64), + ) + ) + if step != 1: + mask.append( + ops.eq( + ops.index_expr( + ModularIndexing(idx[dim] - start, 1, step), torch.int64 + ), + ops.constant(0, torch.int64), + ) + ) + assert mask + mask = functools.reduce(ops.and_, mask) + src_val = ops.masked( + mask, + lambda: src_loader(src_idx), + 0 if is_integer_type(x) else 0.0, + ) + return ops.where( + mask, + src_val, + x_loader(idx), + ) + + return Pointwise.create( + device=x.get_device(), + dtype=x.get_dtype(), + inner_fn=inner_fn, + ranges=list(x.get_size()), + ) + + +def _unwrap(x): + if isinstance(x, (list, tuple)) and len(x) > 0: + return _unwrap(x[0]) + return x + + +@register_lowering([torch.tensor, aten.scalar_tensor]) +def tensor(data, *, dtype=None, device=None, layout=None, pin_memory=False): + assert_nyi(layout in (None, torch.strided), f"layout={layout}") + assert_nyi(not pin_memory, "pin_memory") + if isinstance(_unwrap(data), int): + dtype = dtype or torch.int64 + else: + dtype = dtype or torch.get_default_dtype() + + ranges: list[sympy.Expr] = [] + + if isinstance(data, sympy.Basic): + + def inner_fn(index): + return ops.index_expr(data, dtype) + + elif isinstance(data, (float, int)): + + def inner_fn(index): + return ops.constant(data, dtype) + + elif len(data) == 0 or isinstance(data[0], (float, int)) and len(data) <= 8: + # inline small tensors + ranges.append(sympy.Integer(len(data))) + + def inner_fn(index): + def binary_search(start, end): + assert start < end + if end - start == 1: + return ops.constant(data[start], dtype) + mid = (end - start) // 2 + start + return ops.where( + ops.lt( + ops.index_expr(index[0], torch.int64), + ops.constant(mid, torch.int64), + ), + binary_search(start, mid), + binary_search(mid, end), + ) + + if len(data) == 0: + return ops.constant(0, dtype) + return binary_search(0, len(data)) + + else: + return V.graph.add_tensor_constant( + torch.tensor(data, dtype=dtype, device=device) + ) + + return Pointwise.create( + device=decode_device(device), + dtype=dtype, + inner_fn=inner_fn, + ranges=ranges, + ) + + +@register_lowering(torch.as_tensor) +def as_tensor(data, dtype=None, device=None): + if isinstance(data, TensorBox): + if dtype is not None: + data = to_dtype(data, dtype) + if device is not None: + data = to_device(data, device) + return data + return tensor(data, dtype=dtype, device=device) + + +@register_lowering(torch.LongTensor) +def long_tensor(data): + return tensor(data, dtype=torch.int64) + + +@register_lowering(aten._local_scalar_dense) +def _local_scalar_dense(data): + # This is interesting! Most lowerings return tensors, so you can just + # return the buffer you allocated and it will get used (or not used, if + # it's dead.) But _local_scalar_dense (aka item) returns an int, + # not a Tensor, so you would have a type mismatch if you return a buffer; + # we are obligated to return a sympy expression instead. However, + # we need to actually codegen the .item() call somehow. We do this + # by registering a faux buffer for the DynamicScalar IR node, which is + # solely responsible for generating this .item(). The buffer is + # not used for anything (notice we discard it); at codegen time, + # the "buffer" just gets assigned None. + unbacked_bindings = resolve_unbacked_bindings( + V.graph.sizevars.shape_env, V.graph.current_node.meta["unbacked_bindings"] + ) + assert unbacked_bindings is not None + assert len(unbacked_bindings) == 1, unbacked_bindings + # NB: Have to be very careful here. V.graph.current_node.meta["val"] + # seemingly also contains a symbol which you want to do binding for, + # but it actually isn't. In particular, if we have later performed + # a deferred runtime assert saying that u0 == s0, you will actually + # see s0 from expr! This is bad because we need to actually generate + # the assert that says u0 == s0, so we need to know where to get u0 + # from (this call). In particular, we must use unbacked_bindings, which + # is guaranteed to have the original, unreplaced symbol in question. + # + # NB2: Another thing we have to be very careful about are symbol bindings + # that require nontrivial refinement, e.g., when you have a binding site + # x: Sym(u0 * 4) = y.item(). Here, the code generation must do a division + # in order to appropriately bind u0. This is communicated via the keypath + # in unbacked_bindings, and we need to hold onto it in order to generate + # code appropriately for this case. + binding_sym, keypath = next(iter(unbacked_bindings.items())) + buffer = ir.DynamicScalar(binding_sym, keypath, data) + buffer.name = V.graph.register_buffer(buffer) + V.graph.register_operation(buffer) + # NB: the replaced expr is OK to use directly downstream, we want + # simplifications in this case! + val = V.graph.current_node.meta["val"] + if isinstance(val, (torch.SymInt, torch.SymFloat, torch.SymBool)): + return val.node.expr + else: + return sympy.sympify(val) + + +@register_lowering(aten._assert_scalar) +def _assert_scalar(data, msg): + # NB: These will be handled at codegen time + # Not sure if we are guaranteed to be able to serve out truth from the + # deferred_runtime_asserts, TODO: try this assert out + # See [NOTE] Codegen runtime asserts in Inductor + # assert bool(data.scalar), data + return None + + +@register_lowering(aten._assert_tensor_metadata) +def _assert_tensor_metadata( + a, size=None, stride=None, dtype=None, *, device=None, layout=None +): + return None + + +def _full(fill_value, device, dtype, size): + value = fill_value + if not isinstance(fill_value, (int, float)) and hasattr(value, "value"): + value = value.value + + if isinstance(value, (int, float)): + + def inner_fn(index): + return ops.constant(value, dtype) + + elif isinstance(value, sympy.Basic): + + def inner_fn(index): + return ops.index_expr(value, dtype) + + else: + assert len(value.get_size()) == 0 + value_loader = value.make_loader() + + def inner_fn(index): + return value_loader([]) + + return Pointwise.create( + device=device, + dtype=dtype, + inner_fn=inner_fn, + ranges=list(size), + ) + + +def full_like(x, fill_value, **kwargs): + return create_tensor_like(tensor_constructor(fill_value))(x, **kwargs) + + +def tensor_constructor(fill_value): + # torch.zeros, torch.ones, etc + def inner( + *size, + names=None, + dtype=None, + device=None, + layout=None, + pin_memory=False, + memory_format=None, + ): + assert_nyi(names is None, "named tensors") + assert_nyi(layout in (None, torch.strided), f"layout={layout}") + assert_nyi(not pin_memory, "pin_memory") + device = decode_device(device) + dtype = dtype or torch.get_default_dtype() + if len(size) == 1 and isinstance(size[0], (list, tuple, torch.Size)): + size = tuple(size[0]) + # See https://github.com/pytorch/pytorch/issues/118102 + # All sizes at lowering time should be sympy.Symbol, not SymInt! + for s in size: + assert not isinstance(s, torch.SymInt) + size = [sympy.expand(s) for s in size] + return _full(fill_value, device, dtype, size) + + return inner + + +@register_lowering([torch.empty, aten.empty]) +def empty( + *size, + names=None, + dtype=None, + layout=None, + device=None, + pin_memory=None, + memory_format=None, +): + assert_nyi(names is None, "named tensors") + device = decode_device(device) + if len(size) == 1 and isinstance(size[0], (list, tuple, torch.Size)): + size = tuple(size[0]) + return empty_strided( + size, None, dtype=dtype, layout=layout, device=device, pin_memory=pin_memory + ) + + +def create_tensor_like(creation_fn): + """ + Shim to convert X_like(...) into X(...). For example zeros_like() into zeros(). + """ + + def _constant_like( + x, *, dtype=None, device=None, layout=None, pin_memory=False, memory_format=None + ): + assert_nyi(not pin_memory, "pin_memory") + assert_nyi(layout in (None, torch.strided), f"layout={layout}") + if dtype is None: + dtype = x.get_dtype() + else: + dtype = decode_dtype(dtype) + device = device or x.get_device() + size = list(x.get_size()) + return creation_fn( + size, dtype=dtype, device=device, layout=layout, pin_memory=pin_memory + ) + + return _constant_like + + +def constant_like(fill_value): + return create_tensor_like(tensor_constructor(fill_value)) + + +empty_like = register_lowering(aten.empty_like)(create_tensor_like(empty)) +ones_like = create_tensor_like(tensor_constructor(1)) +zeros_like = create_tensor_like(tensor_constructor(0)) + + +def new_constant(fill_value): + def _new_constant( + x, size, *, dtype=None, layout=None, device=None, pin_memory=None + ): + assert isinstance(size, (list, tuple)) + assert_nyi(not pin_memory, "pin_memory") + assert_nyi(layout in (None, torch.strided), f"layout={layout}") + # pyrefly: ignore [bad-argument-type] + dtype = decode_dtype(dtype) or x.get_dtype() + device = device or x.get_device() + size = [sympy.Integer(s) for s in size] + return _full(fill_value, decode_device(device), dtype, size) + + return _new_constant + + +@register_lowering(aten.new_empty) +def new_empty(x, size, *, dtype=None, layout=None, device=None, pin_memory=None): + if dtype is None: + dtype = x.get_dtype() + if device is None: + device = x.get_device() + return empty_strided( + size, + None, + dtype=dtype, + layout=layout, + device=decode_device(device), + pin_memory=pin_memory, + ) + + +@register_lowering(aten.empty_strided) +def empty_strided( + size, stride, *, dtype=None, layout=None, device=None, pin_memory=None +): + assert isinstance(size, (list, tuple)) + assert isinstance(stride, (list, tuple, type(None))) + assert_nyi(not pin_memory, "pin_memory") + assert_nyi(layout in (None, torch.strided), f"layout={layout}") + # pyrefly: ignore [bad-argument-type] + dtype = decode_dtype(dtype) or torch.get_default_dtype() + device = device or torch.tensor(0.0).device + device = decode_device(device) + pointwise = _full(fill_value=0, device=device, dtype=dtype, size=size) + pointwise.realize() + buffer = pointwise.data.data + # explicitly set ranges to zeros in order to make a NopKernelSchedulerNode + buffer.data = dataclasses.replace(buffer.data, ranges=[0] * len(size)) + assert isinstance(buffer, ir.ComputedBuffer) + size = [sympy.expand(s) for s in size] + stride = ( + [sympy.expand(s) for s in stride] + if stride + else ir.FlexibleLayout.contiguous_strides(size) + ) + buffer.layout = ir.FixedLayout( + device=device, + dtype=dtype, + size=size, + stride=stride, + ) + return pointwise + + +@register_lowering(aten.new_empty_strided) +def new_empty_strided( + x, size, stride, *, dtype=None, layout=None, device=None, pin_memory=None +): + if dtype is None: + dtype = x.get_dtype() + if device is None: + device = x.get_device() + return empty_strided( + size, + stride, + dtype=dtype, + layout=layout, + device=decode_device(device), + pin_memory=pin_memory, + ) + + +@register_lowering(prims.copy_strided.default) +def copy_strided(x, stride): + stride = [V.graph.sizevars.size_hint_or_throw(s) for s in stride] + stride_order = sorted(range(len(stride)), key=stride.__getitem__) + return ir.ExternKernel.require_stride_order(x, stride_order) + + +@register_lowering([torch.full, aten.full]) +def full(size, fill_value, **kwargs): + assert kwargs.get("dtype") is not None, "dtype should be handled by decomposition" + return tensor_constructor(fill_value)(size, **kwargs) + + +@register_lowering(aten.gather, type_promotion_kind=None) +def gather(x, dim, index, sparse_grad=False): + # sparse_grad doesn't affect forward computation, + # and backward tracing is taken care of by AOT Autograd + assert isinstance(x, TensorBox) + if index.get_numel() == 0: + # Empty index case. Return an empty array with the same shape + return new_empty(x, index.get_size()) + + size = x.get_size() + offset = len(size) == 0 + dim = _validate_dim(x, dim, offset) + + if offset: + x = expand(x, [1]) + size = [1] + + x_loader = x.make_loader() + index_loader = index.make_loader() + + def fn(idx): + idx = list(idx) + gather_idx = ops.indirect_indexing(index_loader(idx), size[dim]) + if len(idx) == 0: + idx = [gather_idx] + else: + idx[dim] = gather_idx + return x_loader(idx) + + return Pointwise.create( + device=x.get_device(), + dtype=x.get_dtype(), + inner_fn=fn, + ranges=index.get_size(), + ) + + +@register_lowering(aten.embedding, type_promotion_kind=None) +def embedding(weight, indices, padding_idx=-1, scale_grad_by_freq=False, sparse=False): + if sparse: + return fallback_handler(aten.embedding.default)( + weight, indices, padding_idx, scale_grad_by_freq, sparse + ) + + assert not sparse + assert isinstance(weight, TensorBox) + assert isinstance(indices, TensorBox) + assert "int" in str(indices.get_dtype()) + + weight_loader = weight.make_loader() + indices_loader = indices.make_loader() + indices_ndim = len(indices.get_size()) + weight_size = weight.get_size() + new_size = [*indices.get_size(), *weight_size[1:]] + + def fn(idx): + assert len(idx) == len(new_size), f"{idx} != {new_size}" + var_index = indices_loader(idx[:indices_ndim]) + weight_idx = [ops.indirect_indexing(var_index, weight_size[0])] + [ + *idx[indices_ndim:] + ] + return weight_loader(weight_idx) + + return Pointwise.create( + device=weight.get_device(), + dtype=weight.get_dtype(), + inner_fn=fn, + ranges=new_size, + ) + + +def check_and_broadcast_indices(indices, device): + assert all( + i.get_dtype() in (torch.int64, torch.int32, torch.bool, torch.uint8) + for i in indices + if i is not None + ), ( + f"indices must be int64, byte or bool. Got {[i.get_dtype() for i in indices if i is not None]}" + ) + if any( + i.get_dtype() in (torch.bool, torch.uint8) for i in indices if i is not None + ): + raise NotImplementedError("Fallback for bool indices") + + valid_idxs = [i for i, x in enumerate(indices) if isinstance(x, TensorBox)] + assert len(valid_idxs) > 0, "requires at least 1 non-None index" + new_indices = [None] * len(indices) + for i, x in zip(valid_idxs, broadcast_tensors(*[indices[i] for i in valid_idxs])): + # Eager allows indices to be CPU tensor when running on CUDA + # FIXME: Calling to_device(x, device) should work but + # test_advancedindex_mixed_cpu_devices still fails + if x.get_device() != device: + raise NotImplementedError("Fallback when indices is on a different device") + new_indices[i] = x + return new_indices, valid_idxs + + +def index_output_size_and_inner_fn( + x_size, + indices, + tensor_indices, + tensor_size, + indices_loaders, + indexed_size, + x_loader, + check, + wrap_neg=True, +): + # Note that behavior of indexing differs when there are non consecutive + # tensors. In this case, the tensor index is pulled to the beginning. + # + # Suppose a = torch.arange(3 * 4 * 5 * 6 * 7).view(3, 4, 5, 6, 7) + # x = torch.tensor[1,2] + # Then, a[:,x,:,x,:] will have shape 2,3,5,7 as due to x,:,x then 2 will + # be pulled to the front. + non_consecutive_tensors = False + for previous, current in itertools.pairwise(tensor_indices): + if current - previous != 1: + non_consecutive_tensors = True + + output_size = [x_size[i] for i, val in enumerate(indices) if val is None] + output_size = [*output_size, *x_size[len(output_size) + len(tensor_indices) :]] + + first_tensor_index = tensor_indices[0] + if non_consecutive_tensors: + output_size = tensor_size + output_size + else: + output_size = ( + output_size[:first_tensor_index] + + tensor_size + + output_size[first_tensor_index:] + ) + + def fn(idx): + assert len(idx) == len(output_size) + assert len(indices_loaders) == len(indexed_size) + + rank = len(tensor_size) + new_index = [] + first_tensor_index = tensor_indices[0] + start_offset = 0 if non_consecutive_tensors else first_tensor_index + next_idx = 0 + for i in range(tensor_indices[-1] + 1): + if i == start_offset: + next_idx += rank + if indices[i] is None: + assert next_idx < len(idx) + new_index.append(idx[next_idx]) + next_idx += 1 + else: + loader = indices_loaders[i] + assert loader is not None + size = indexed_size[i] + new_index.append( + ops.indirect_indexing( + loader(idx[start_offset : start_offset + rank]), + size, + check=check, + wrap_neg=wrap_neg, + ) + ) + new_index = [ + *new_index, + *idx[next_idx:], + ] + return new_index if x_loader is None else x_loader(new_index) + + return output_size, fn + + +def index_impl(x, indices, check): + output_size, inner_fn, _ = index_impl_helper(x, indices, check) + + return Pointwise.create( + device=x.get_device(), + dtype=x.get_dtype(), + inner_fn=inner_fn, + ranges=output_size, + ) + + +def index_impl_helper(x, indices, check, wrap_neg=True): + assert isinstance(indices, (list, tuple)) + x_loader = x.make_loader() + indices, tensor_indices = check_and_broadcast_indices(indices, x.get_device()) + assert len(tensor_indices) > 0, "Must have at least one valid idx" + + indices_loaders = [i.make_loader() if i is not None else None for i in indices] + # no guards on output size, all the guards are set in broadcast_tensors + + # We can use the first one since they are all required to be the same size + tensor_size = list(indices[tensor_indices[0]].get_size()) + + x_size = x.get_size() + + indexed_size = [x_size[i] for i in range(len(indices)) if indices[i] is not None] + if check and 0 in indexed_size and 0 not in tensor_size: + raise IndexError("index is out of bounds for dimension with size 0") + + indexed_size = [x_size[i] for i in range(len(indices))] + output_size, index_inner_fn = index_output_size_and_inner_fn( + x_size, + indices, + tensor_indices, + tensor_size, + indices_loaders, + indexed_size, + None, + check=check, + wrap_neg=wrap_neg, + ) + + def inner_fn(idx): + return x_loader(index_inner_fn(idx)) + + return output_size, inner_fn, index_inner_fn + + +@register_lowering(aten.index, type_promotion_kind=None) +def index(x, indices): + try: + return index_impl(x, indices, check=True) + except NotImplementedError: + # Fallback to ATen for boolean indexing + x.realize() + return fallback_handler(aten.index.Tensor, add_to_fallback_set=False)( + x, indices + ) + + +@register_lowering(aten._unsafe_index, type_promotion_kind=None) +def _unsafe_index(x, indices): + return index_impl(x, indices, check=False) + + +# All the indexing decompositions are written in terms of index, index_put, and index_put_ +# We cannot have this lowering as a decomposition as it introduces +# mutation in the graph, which is bad for Aot Autograd. Aot Autograd runs dead +# code elimination and common subexpression elimination optimizations, which +# assume graphs to be side-effect free. More details at +# https://github.com/pytorch/torchdynamo/issues/1235 +# and +# https://github.com/pytorch/torchdynamo/issues/1863 +@register_lowering(aten.index_put, type_promotion_kind=None) +def index_put(x, indices, values, accumulate=False): + return index_put_impl_( + clone(x), indices, values, accumulate, check=True, may_realize=False + ) + + +@register_lowering(aten._unsafe_index_put) +def _unsafe_index_put(x, indices, values, accumulate=False): + return index_put_impl_( + clone(x), indices, values, accumulate, check=False, may_realize=False + ) + + +def index_put_as_masked_fill(self, indices, value, accumulate): + if value.get_device() != self.get_device(): + value = to_device(value, self.get_device()) + if accumulate: + value = add(self, value) + return mutate_to(self, where(indices[0], value, self)) + + +def index_put_fallback(self, indices, values, accumulate): + from .utils import _fx_node_is_input_dependent_cudagraph_unsafe + + op_overload = getattr(aten.index_put_, V.graph.current_node.target._overloadname) # type: ignore[union-attr] + + # Check if any index is a boolean tensor - if so, mark as cudagraph-unsafe + # because boolean indices trigger .nonzero() during CUDA graph capture + # When graph_partition is enabled, skip - partitioning handles this + fx_node = V.graph.current_node + if ( + not config.graph_partition + and fx_node is not None + and _fx_node_is_input_dependent_cudagraph_unsafe(fx_node) + ): + msg = "index_put_ fallback with boolean indexing is not compatible with CUDA graphs" + if stack_trace := fx_node.meta.get("stack_trace", None): + msg = f"{msg} Found from : \n {stack_trace}" + V.graph.disable_cudagraphs_reason = msg + + ir.IndexPutFallback(op_overload, self, indices, values, accumulate) + return self + + +@register_lowering(aten.index_put_, type_promotion_kind=None) +def index_put_(self, indices, values, accumulate=False): + return index_put_impl_( + self, indices, values, accumulate, check=True, may_realize=True + ) + + +@register_lowering(inductor_prims._unsafe_index_put_, type_promotion_kind=None) +def _unsafe_index_put_(self, indices, values, accumulate=False): + return index_put_impl_( + self, indices, values, accumulate, check=False, may_realize=True + ) + + +def index_put_impl_(self, indices, values, accumulate, check, may_realize=False): + if may_realize: + + def indice_slice_from_randperm(indice): + # Refer to: https://github.com/pytorch/pytorch/pull/139366#discussion_r1825424660 + # For this specific pattern, indices is unique as coming from torch.randperm. + # However, as the content of the indices is unknown, we have to check this specific pattern. + if isinstance(indice, TensorBox) and isinstance(indice.data, ir.BaseView): + indice = indice.data.unwrap_view() + return ( + isinstance(indice, ir.StorageBox) + and isinstance(indice.data, ir.ExternKernel) + and getattr(indice.data, "fx_node", None) + and indice.data.fx_node.target is torch.ops.aten.randperm.default + ) + return False + + if ir.try_get_name(self) in values.get_read_names() and not all( + indice_slice_from_randperm(indice) for indice in indices + ): + # Fix issue: https://github.com/pytorch/pytorch/issues/138908 + # When self and values have memory overlapping, indices may + # contain duplicate values, potentially causing incorrect results since + # the load of `values` might contain modified value from the store of `self`. + # To address this, store values in a temporary buffer in such cases. + values.realize() + + # Dispatch to masked fill for single boolean index with single value + if ( + values.get_numel() == 1 + and len(indices) == 1 + and indices[0].get_dtype() in (torch.bool, torch.uint8) + ): + mask = indices[0] + for _ in range(len(mask.get_size()), len(self.get_size())): + mask = unsqueeze(mask, -1) + return index_put_as_masked_fill(self, [mask], values, accumulate) + + # Fallback in torch deterministic mode + if torch.are_deterministic_algorithms_enabled(): + return index_put_fallback(self, indices, values, accumulate) + + # Fallback if there is a boolean index + for index in indices: + if index is not None and index.get_dtype() in (torch.bool, torch.uint8): + return index_put_fallback(self, indices, values, accumulate) + + x_size = self.get_size() + x_ndim = len(x_size) + + if accumulate and needs_fallback_due_to_atomic_add_limitations(self.get_dtype()): + # self is an scalar Tensor + if x_ndim == 0: + self = view(self, [1]) + self = index_put_fallback(self, indices, values, accumulate) + if x_ndim == 0: + self = view(self, []) + return self + + values = to_dtype(values, self.get_dtype()) + + try: + # Note that code will only get here when dtype is uint32 + indices, tensor_indices = check_and_broadcast_indices( + indices, self.get_device() + ) + except NotImplementedError: + return index_put_fallback(self, indices, values, accumulate) + + indices_loaders = [i.make_loader() if i is not None else None for i in indices] + + assert isinstance(self, TensorBox) + self.realize() + + # self is an scalar Tensor + if x_ndim == 0: + self = view(self, [1]) + + # We can use the first one since they are all required to be the same size + tensor_size = list(indices[tensor_indices[0]].get_size()) + indexed_size = [x_size[i] for i in range(len(indices))] + + expected_vals_size, inner_fn = index_output_size_and_inner_fn( + x_size, + indices, + tensor_indices, + tensor_size, + indices_loaders, + indexed_size, + None, + check=check, + ) + + values = expand(values, expected_vals_size) + # all guards are set above during broadcast_tensors and expand + + device = self.get_device() + assert device is not None + scatter = ir.Scatter( + device=device, + dtype=self.get_dtype(), + inner_fn=values.make_loader(), + ranges=expected_vals_size, # iter_ranges, + output_indexer=inner_fn, + scatter_mode="atomic_add" if accumulate else None, + ) + buffer = ir.ComputedBuffer( + name=None, + layout=ir.MutationLayoutSHOULDREMOVE(self), + data=scatter, + ) + buffer.name = V.graph.register_buffer(buffer) + V.graph.register_operation(buffer) + + if x_ndim == 0: + self = view(self, []) + return self + + +fallback__unsafe_masked_index = fallback_handler( + aten._unsafe_masked_index.default, add_to_fallback_set=False +) + +fallback__unsafe_masked_index_put_accumulate = fallback_handler( + aten._unsafe_masked_index_put_accumulate.default, add_to_fallback_set=False +) + + +@register_lowering(aten._unsafe_masked_index, type_promotion_kind=None) +def _unsafe_masked_index(self, mask, indices, fill): + ranges, _, _unsafe_index_fn = index_impl_helper( + self, indices, check=False, wrap_neg=False + ) + mask_loader = mask.make_loader() + self_loader = self.make_loader() + + def inner_fn(idx): + if mask.dtype != torch.bool: + mask_val = ops.to_dtype(mask_loader(idx), torch.bool) + else: + mask_val = mask_loader(idx) + return ops.masked(mask_val, lambda: self_loader(_unsafe_index_fn(idx)), fill) + + return Pointwise.create( + device=self.get_device(), + dtype=self.get_dtype(), + inner_fn=inner_fn, + ranges=ranges, + ) + + +@register_lowering(aten._unsafe_masked_index_put_accumulate, type_promotion_kind=None) +def _unsafe_masked_index_put_accumulate(x, mask, indices, values): + masked_value = where(mask, values, 0) + shape = x.get_size() + clamped_indices = [ + clamp(indices[i], -shape[i], shape[i] - 1) if indices[i] else None + for i in range(len(indices)) + ] + # TODO: use a masked store for this. currently only triton + # supports masked stores and cpp backend does not. + return _unsafe_index_put(x, clamped_indices, masked_value, accumulate=True) + + +@make_pointwise +def clamp(a, min, max): + return ops.maximum(min, ops.minimum(max, a)) + + +@register_lowering(aten.as_strided_scatter, type_promotion_kind=None) +def as_strided_scatter(self, src, size, stride, storage_offset=None): + output = clone(self) + output_view = as_strided(output, size, stride, storage_offset) + copy_(output_view, src) + return output + + +@register_lowering(aten.scatter, type_promotion_kind=None) +def scatter(x, dim: int, index, src, **kwargs): + return scatter_(clone(x), dim, index, src, **kwargs) + + +def scatter_fallback( + op_overload: torch._ops.OpOverload, + self, + dim: int, + index, + src, + *, + reduce: Optional[str] = None, + include_self: bool = True, +): + src_is_tensor = isinstance(src, TensorBox) + if use_scatter_fallback( + op_overload, + reduce, + self.get_dtype(), + cast(torch.dtype, src.get_dtype() if src_is_tensor else type(src)), + src.get_device().type if src_is_tensor else "not impl", + src_is_tensor, + ): + ir.ScatterFallback( + op_overload, + self, + dim, + index, + src, + reduce=reduce, + include_self=include_self, + ) + return self + + return None + + +@register_lowering(aten.scatter_, type_promotion_kind=None) +def scatter_(self, dim: int, index, src, *, reduce: Optional[str] = None): + assert reduce in (None, "add", "multiply") + if reduce is None: + op_overload = getattr(aten.scatter_, V.graph.current_node.target._overloadname) # type: ignore[union-attr] + fallback_result = scatter_fallback( + op_overload, self, dim, index, src, reduce=reduce + ) + if fallback_result is not None: + return fallback_result + + if reduce == "add": + reduce = "sum" + elif reduce == "multiply": + reduce = "prod" + return scatter_reduce_(self, dim, index, src, reduce) + + +@register_lowering(aten.scatter_add, type_promotion_kind=None) +def scatter_add(x, dim: int, index, src): + return scatter_add_(clone(x), dim, index, src) + + +@register_lowering(aten.scatter_add_, type_promotion_kind=None) +def scatter_add_(x, dim: int, index, src): + return scatter_reduce_(x, dim, index, src, "sum") + + +@register_lowering(aten.scatter_reduce, type_promotion_kind=None) +def scatter_reduce(x, dim: int, index, src, reduction_type, **kwargs): + return scatter_reduce_(clone(x), dim, index, src, reduction_type, **kwargs) + + +@register_lowering(aten.scatter_reduce_, type_promotion_kind=None) +def scatter_reduce_(self, dim: int, index, src, reduce, *, include_self: bool = True): + assert reduce in (None, "sum", "prod", "mean", "amax", "amin") + assert ( + len(aten.scatter_reduce_.overloads()) == 1 + and "two" in aten.scatter_reduce_.overloads() + ), "aten.scatter_reduce_.two is not the unique overload of aten.scatter_reduce_" + + if isinstance(src, Number): + src = full_like(self, src) + + fallback_result = scatter_fallback( + aten.scatter_reduce_.two, + self, + dim, + index, + src, + reduce=reduce, + include_self=include_self, + ) + + if fallback_result: + return fallback_result + + assert isinstance(self, TensorBox) + assert "int" in str(index.get_dtype()) + + ndim = len(self.get_size()) + if ndim == 0: + self = view(self, [1]) + + if isinstance(src, TensorBox) and len(src.get_size()) == 0: + src = view(src, [1]) + + if isinstance(index, TensorBox) and len(index.get_size()) == 0: + index = view(index, [1]) + + if index.get_numel() == 0: + return self + + dim = _validate_dim(self, dim) + + self.realize() + index_loader = index.make_loader() + src_loader = src.make_loader() if isinstance(src, TensorBox) else None + + def output_indexer(idx): + # self is captured from the end of the function, so it may have 0 dim + shape = self.get_size() + ndim = len(shape) + indirect_idx = list(idx) + indirect_idx[dim] = ops.indirect_indexing( + index_loader(idx), 1 if ndim == 0 else shape[dim], wrap_neg=False + ) + return indirect_idx + + def fn(idx): + if src_loader: + return src_loader(idx) + else: + # src is a scalar + # pyrefly: ignore [bad-argument-type] + return ops.constant(src, self.get_dtype()) + + def backend_reduce_str(reduce): + if reduce == "sum": + return "atomic_add" + else: + # TODO: Need to support more reduction type + assert reduce is None + return None + + device = self.get_device() + assert device is not None + + if not include_self: + # zero out the corresponding elements first + zero_out = ir.Scatter( + device=device, + dtype=self.get_dtype(), + inner_fn=lambda index: ops.constant(0, self.get_dtype()), + ranges=index.get_size(), + output_indexer=output_indexer, + scatter_mode=None, + ) + buffer = ir.ComputedBuffer( + name=None, + layout=ir.MutationLayoutSHOULDREMOVE(self), + data=zero_out, + ) + buffer.name = V.graph.register_buffer(buffer) + V.graph.register_operation(buffer) + + # self[index[i][j][k]][j][k] += src[i][j][k] # if dim == 0 + # self[i][index[i][j][k]][k] += src[i][j][k] # if dim == 1 + # self[i][j][index[i][j][k]] += src[i][j][k] # if dim == 2 + scatter = ir.Scatter( + device=device, + dtype=self.get_dtype(), + inner_fn=fn, + ranges=index.get_size(), + output_indexer=output_indexer, + scatter_mode=backend_reduce_str(reduce), + ) + buffer = ir.ComputedBuffer( + name=None, + layout=ir.MutationLayoutSHOULDREMOVE(self), + data=scatter, + ) + buffer.name = V.graph.register_buffer(buffer) + V.graph.register_operation(buffer) + + if ndim == 0: + self = view(self, []) + return self + + +def upsample_nearestnd( + x, + output_size, + scales_x: tuple[Optional[float], ...], + n: int = 2, + exact: bool = False, +): + x.realize_hint() # elements are reused + x_loader = x.make_loader() + i_sizes = x.get_size()[-n:] + batch = x.get_size()[:-n] + i_sizes = [V.graph.sizevars.guard_int(i) for i in i_sizes] + + assert len(scales_x) == n + o_sizes = output_size + + inv_scales = [i / o for i, o in zip(i_sizes, o_sizes)] + for i, scale in enumerate(scales_x): + if scale is not None: + inv_scales[i] = 1.0 / scale + + def scale_fn(x, scale, size): + # Nearest Exact: input_index = round(scale * (output_index + 0.5) - 0.5) + # = floor(scale * (output_index + 0.5)) + # Nearest: input_index = floor(scale * output_index) + x = ops.index_expr(x, torch.float32) + if exact: + x = ops.add(x, ops.constant(0.5, torch.float32)) + x = ops.mul(x, ops.constant(scale, torch.float32)) + x = ops.to_dtype(x, torch.int32) + return ops.indirect_indexing(x, size, check=False) + + def fn(idx): + x = idx[-n:] + b = idx[:-n] + return x_loader( + [*b, *[scale_fn(i, s, size) for i, s, size in zip(x, inv_scales, i_sizes)]] + ) + + return Pointwise.create( + device=x.get_device(), + dtype=x.get_dtype(), + inner_fn=fn, + ranges=[*batch, *o_sizes], + ) + + +@register_lowering(aten.upsample_nearest1d.default) +def upsample_nearest1d(x, output_size, scales: Optional[float] = None): + return upsample_nearestnd(x, output_size, (scales,), n=1) + + +@register_lowering(aten._upsample_nearest_exact1d.default) +def _upsample_nearest_exact1d(x, output_size, scales: Optional[float] = None): + return upsample_nearestnd(x, output_size, (scales,), n=1, exact=True) + + +@register_lowering(aten.upsample_nearest2d.default) +def upsample_nearest2d( + x, output_size, scales_h: Optional[float] = None, scales_w: Optional[float] = None +): + return upsample_nearestnd(x, output_size, (scales_h, scales_w), n=2) + + +@register_lowering(aten._upsample_nearest_exact2d.default) +def _upsample_nearest_exact2d( + x, output_size, scales_h: Optional[float] = None, scales_w: Optional[float] = None +): + return upsample_nearestnd(x, output_size, (scales_h, scales_w), n=2, exact=True) + + +@register_lowering(aten.upsample_nearest3d.default) +def upsample_nearest3d( + x, + output_size, + scales_d: Optional[float] = None, + scales_h: Optional[float] = None, + scales_w: Optional[float] = None, +): + return upsample_nearestnd(x, output_size, (scales_d, scales_h, scales_w), n=3) + + +@register_lowering(aten._upsample_nearest_exact3d.default) +def _upsample_nearest_exact3d( + x, + output_size, + scales_d: Optional[float] = None, + scales_h: Optional[float] = None, + scales_w: Optional[float] = None, +): + return upsample_nearestnd( + x, output_size, (scales_d, scales_h, scales_w), n=3, exact=True + ) + + +def _create_constants(*args, dtype): + return tuple(ops.constant(a, dtype) for a in args) + + +@register_lowering(prims.rev.default) +def rev(x, dims): + # note - dims pre-canonicalized + x_loader = x.make_loader() + sizes = x.get_size() + + def loader(idx): + idx = list(idx) + assert len(idx) == len(sizes) + for dim in dims: + idx[dim] = (sizes[dim] - 1) - idx[dim] + + return x_loader(idx) + + return Pointwise.create( + device=x.get_device(), + dtype=x.get_dtype(), + inner_fn=loader, + ranges=sizes, + ) + + +def inplace_constant_pad_nd( + x: TensorBox, padding: Sequence[int], fill_value: float +) -> Optional[TensorBox]: + """ + This optimization changes the semantics of padding from 'clone' + style to 'view' style. + + Thanks to functionalization, this change can still maintain numerical + correctness. + """ + + def _padding_can_be_fused(): + """ + Conservatively check if padding can be fused with downstream op. + 1. if the downstream op is a sum, then there is little benefit to + do inplace padding + 2. if the downstream op is a matmul, doing inplace padding can + save membw. + """ + current_node = V.graph.current_node + if current_node is None: + return True # be conservative + users = tuple(current_node.users) + if len(users) == 1 and users[0].target in ( + aten.mm.default, + aten.addmm.default, + ): + return False + + return True # be conservative + + if _padding_can_be_fused(): + return None + + # Only handle 2D case for now + if len(padding) != 4 or len(x.get_size()) != 2: + return None + + # No harm to realize since we already know that + # the op can not be fused into the single user. + # It need to be realized later anyways. + x.realize() + + # If x is a view (e.g. a SliceView), realizing it just realizing the + # underlying storage. x itself is still a view. + if ( + not isinstance(x, ir.TensorBox) + or not isinstance(x.data, ir.StorageBox) + or not ( + isinstance(x.data.data, ir.ComputedBuffer) + or ( + config.can_inplace_pad_graph_input + and isinstance(x.data.data, ir.InputBuffer) + ) + ) + or not x.data.data.name + ): + return None + x.freeze_layout() + + _, layout = ir.as_storage_and_layout(x) + strides = layout.stride + if strides[1] != 1: + return None + + if padding[0] != 0 or padding[2] != 0 or padding[3] != 0: + return None + + npad = padding[1] + if npad == 0: + return None + + stride0 = strides[0] + rowsize = layout.size[1] + + if stride0 < rowsize + npad: + return None + + bufname = x.data.data.name + padded_size = [layout.size[0], layout.size[1] + npad] + V.graph.buffer_to_padded_size[bufname] = padded_size + resized_x = as_strided( + x, + padded_size, + layout.stride, + layout.offset, + ) + + sliced_x = slice_(resized_x, dim=1, start=rowsize, end=rowsize + npad, clamp=False) + fill_(sliced_x, fill_value) + + counters["inductor"]["inplace_padding"] += 1 + return resized_x + + +@register_lowering(aten.constant_pad_nd, type_promotion_kind=None) +def constant_pad_nd(x, padding, fill_value=0): + assert (len(padding) % 2) == 0 + if all(p == 0 for p in padding): + return clone(x) + + if config.inplace_padding: + out = inplace_constant_pad_nd(x, padding, fill_value) + if out: + return out + # fall through if can not inplace the padding + + sizes = x.get_size() + + bounds = list(reversed(list(zip(padding[::2], padding[1::2])))) + n = len(sizes) - len(bounds) + + # if padding is a complicated expression, hoist it + bounds_precomp: list[tuple[sympy.Symbol, Any]] = [] + for l, h in bounds: + bounds_precomp.append((V.graph.sizevars.lookup_precomputed_size(l), h)) # type: ignore[arg-type] + + output_size = list(sizes[:n]) + mask_sizes = [] + for (low, high), size in zip(bounds, sizes[n:]): + mask_sizes.append(size) + output_size.append(sympy.expand(size + low + high)) + assert len(output_size) == len(sizes) + fill_value = dtype_to_type(x.get_dtype())(fill_value) + + def mask(index): + mask = [] + for idx, (low, high), length in zip(index[n:], bounds, mask_sizes): + if low != 0: + mask.append(range_mask_low(idx, 0)) + if high != 0: + mask.append(range_mask_high(idx, length)) + mask = functools.reduce(ops.and_, mask) + return ops.masked(mask, lambda: x_loader(index), fill_value) + + def offset_fn(index): + new_index = list(index[:n]) + for idx, (low, _high) in zip(index[n:], bounds_precomp): + new_index.append(idx - low) + assert len(new_index) == len(index) + return mask(new_index) + + x_loader = x.make_loader() + return Pointwise.create( + device=x.get_device(), + dtype=x.get_dtype(), + inner_fn=offset_fn, + ranges=output_size, + ) + + +def range_mask_low(i: sympy.Expr, low: Union[sympy.Expr, int]): + return ops.ge( + ops.index_expr(i, torch.int64), + ops.index_expr(sympy.Integer(low), torch.int64), + ) + + +def range_mask_high(i: sympy.Expr, high: sympy.Expr): + return ops.lt( + ops.index_expr(i, torch.int64), + ops.index_expr(high, torch.int64), + ) + + +def range_mask(i: sympy.Expr, high: sympy.Expr, low: sympy.Expr): + return ops.and_( + range_mask_low(i, low), + range_mask_high(i, high), + ) + + +def constant_boundary_condition( + x, fill_value, padding=None, pad_fill_value=1.0, dim=None +): + h = x.get_size()[-dim:] + x_loader = x.make_loader() + # pyrefly: ignore [unsupported-operation] + padding_h = padding or [0] * dim + + def load(index): + prefix = index[:-dim] + ih = index[-dim:] + + mask = functools.reduce( + ops.and_, + # pyrefly: ignore [no-matching-overload] + [range_mask(ih[i], h[i] + padding_h[i], -padding_h[i]) for i in range(dim)], + ) + return ( + ops.masked( + mask, + lambda: constant_boundary_condition(x, pad_fill_value, dim=dim)( + [*prefix, *ih] + ), + fill_value, + ) + if padding + else ops.masked(mask, lambda: x_loader([*prefix, *ih]), fill_value) + ) + + return load + + +def pooling_size(x, i, kernel_size, stride, padding, ceil_mode, *, dilation=None): + if dilation is None: + dilation = [1] * len(padding) + + x_out = FloorDiv( + x + 2 * padding[i] - dilation[i] * (kernel_size[i] - 1) + (stride[i] - 1), + stride[i], + ) + + if ceil_mode: + x_alt = FloorDiv( + x + + 2 * padding[i] + - dilation[i] * (kernel_size[i] - 1) + + 2 * (stride[i] - 1), + stride[i], + ) + if V.graph.sizevars.size_hint((x_alt - 1) * stride[i] - x - padding[i]) >= 0: + # Sliding windows must start within the input or left padding + x_alt -= 1 # type: ignore[assignment] + V.graph.sizevars.check_leq(0, x_alt * stride[i] - x - padding[i]) # type: ignore[arg-type] + if V.graph.sizevars.size_hint(x_out - x_alt) == 0: + # ceil mode is actually a no-op, lets guard on that + V.graph.sizevars.check_equals(x_out, x_alt) + ceil_mode = False + else: + x_out = x_alt + return x_out, ceil_mode + + +def should_fallback_max_pool_with_indices(kernel_size, *, n_dim): + kernel_size = pad_listlike(kernel_size, n_dim) + window_size = functools.reduce(operator.mul, kernel_size) + return window_size > 25 + + +def max_pool_checks( + x, kernel_size, stride, padding, dilation, n_dim, *, assert_fallback=None +): + if padding == 0: + padding = [0] * n_dim + if dilation == 1: + dilation = [1] * n_dim + if not stride: + stride = kernel_size + + kernel_size = pad_listlike(kernel_size, n_dim) + stride = pad_listlike(stride, n_dim) + padding = pad_listlike(padding, n_dim) + dilation = pad_listlike(dilation, n_dim) + + assert isinstance(x, TensorBox) + assert len(kernel_size) == n_dim + assert len(stride) == n_dim + assert len(padding) == n_dim + assert len(dilation) == n_dim + assert len(x.get_size()) in (n_dim + 1, n_dim + 2) + + use_fallback = should_fallback_max_pool_with_indices(kernel_size, n_dim=n_dim) + if assert_fallback is not None: + assert use_fallback == assert_fallback + + return kernel_size, stride, padding, dilation, use_fallback + + +def _max_pool_with_offsets( + x, + kernel_size, + stride, + padding, + dilation, + ceil_mode, + *, + n_dim, +): + x.realize_hint() + batch = x.shape[:-n_dim] + dhw = x.shape[-n_dim:] + + dhw_out, ceil_mode = zip( + *[ + pooling_size( + dhw[d], d, kernel_size, stride, padding, ceil_mode, dilation=dilation + ) + for d in range(n_dim) + ] + ) + + dtype = x.dtype + min_value = ( + False + if dtype is torch.bool + else (float("-inf") if dtype.is_floating_point else torch.iinfo(dtype).min) + ) + + new_size = list(batch) + list(dhw_out) + if any(padding) or any(ceil_mode) or any(d > 1 for d in dilation): + x_loader = constant_boundary_condition(x, min_value, dim=n_dim) + else: + x_loader = x.make_loader() + + def fn_inner(idx, reduction_idx): + prefix = idx[:-n_dim] + bh = idx[-n_dim:] + ih = [ + (bh[i] * stride[i]) + (reduction_idx[i] * dilation[i]) - padding[i] + for i in range(n_dim) + ] + return x_loader([*prefix, *ih]) + + result = Reduction.create( + reduction_type="max", + input_node=x, + device=x.get_device(), + dst_dtype=dtype, + src_dtype=dtype, + inner_fn=fn_inner, + ranges=new_size, + reduction_ranges=kernel_size, + ) + offsets = Reduction.create( + reduction_type="argmax", + input_node=x, + device=x.get_device(), + dst_dtype=torch.int64, + src_dtype=dtype, + inner_fn=fn_inner, + ranges=new_size, + reduction_ranges=kernel_size, + ) + if isinstance(result.data.data, Reduction): # type: ignore[attr-defined, union-attr] + # Only realize if reduction isn't unrolled + result.realize() + if isinstance(offsets.data.data, Reduction): # type: ignore[attr-defined, union-attr] + # Only realize if reduction isn't unrolled + offsets.realize() + + return result, offsets + + +@register_lowering(prims._low_memory_max_pool_with_offsets, type_promotion_kind=None) +def _low_memory_max_pool_with_offsets( + x, + kernel_size, + stride, + padding, + dilation, + ceil_mode=False, +): + n_dim = len(kernel_size) + + # assert we are not on a fallback path, the inductor decomp should have guaranteed this + kernel_size, stride, padding, dilation, _ = max_pool_checks( + x, + kernel_size, + stride, + padding, + dilation, + n_dim, + assert_fallback=False, + ) + + with config.patch(unroll_reductions_threshold=25): + result, offsets = _max_pool_with_offsets( + x, + kernel_size, + stride, + padding, + dilation, + ceil_mode, + n_dim=n_dim, + ) + return result, to_dtype(offsets, torch.int8) + + +def _pool_offsets_to_indices( + offsets: TensorBox, + kernel_size: Sequence[Union[int, torch.SymInt]], + input_size: Sequence[Union[int, torch.SymInt]], + increments_to_index: Callable[ + [Sequence[Union[int, torch.SymInt]], Sequence[Union[int, torch.SymInt]]], + torch._inductor.virtualized.OpsValue, + ], +) -> Union[TensorBox, ShapeAsConstantBuffer]: + n_dim = len(kernel_size) + offsets_loader = offsets.make_loader() + window_size = sympy.sympify(functools.reduce(operator.mul, kernel_size)) + + def offsets_to_indices(idx): + offset = offsets_loader(idx) + offset_sympy = ops.indirect_indexing(offset, window_size) + reduction_idx = inductor_prims._flattened_index_to_nd(offset_sympy, kernel_size) + idhw = increments_to_index(idx, reduction_idx) + return ops.index_expr( + inductor_prims._flatten_index(idhw, input_size[-n_dim:]), torch.int64 + ) + + indices = Pointwise.create( + device=offsets.get_device(), + dtype=torch.int64, + inner_fn=offsets_to_indices, + ranges=offsets.get_size(), + ) + return indices + + +@register_lowering( + prims._low_memory_max_pool_offsets_to_indices, type_promotion_kind=None +) +def _low_memory_max_pool_offsets_to_indices( + offsets, kernel_size, input_size, stride, padding, dilation +): + # TODO: Generalize to other max pooling flavors + n_dim = len(kernel_size) + + def increments_to_index(idx, reduction_idx): + bh = idx[-n_dim:] + return [ + (bh[i] * stride[i]) + (reduction_idx[i] * dilation[i]) - padding[i] + for i in range(n_dim) + ] + + return _pool_offsets_to_indices( + offsets, kernel_size, input_size, increments_to_index + ) + + +def _max_pool_with_indices( + x, + kernel_size, + stride, + padding, + dilation, + ceil_mode, + n_dim, +): + kernel_size, stride, padding, dilation, _ = max_pool_checks( + x, kernel_size, stride, padding, dilation, n_dim=n_dim + ) + + out, offsets = _max_pool_with_offsets( + x, kernel_size, stride, padding, dilation, ceil_mode, n_dim=n_dim + ) + + indices = _low_memory_max_pool_offsets_to_indices( + offsets, + kernel_size, + x.shape[-n_dim:], + stride, + padding, + dilation, + ) + + return out, indices + + +# Fallback when we do not decompose to the low-memory path. +@register_lowering(aten.max_pool2d_with_indices, type_promotion_kind=None) +def max_pool2d_with_indices( + x, + kernel_size, + stride=None, + padding=0, + dilation=1, + ceil_mode=False, +): + return _max_pool_with_indices( + x, kernel_size, stride, padding, dilation, ceil_mode, n_dim=2 + ) + + +# Fallback when we do not decompose to the low-memory path. +@register_lowering(aten.max_pool3d_with_indices, type_promotion_kind=None) +def max_pool3d_with_indices( + x, + kernel_size, + stride=None, + padding=0, + dilation=1, + ceil_mode=False, +): + return _max_pool_with_indices( + x, kernel_size, stride, padding, dilation, ceil_mode, n_dim=3 + ) + + +fallback_max_pool2d_with_indices_backward = fallback_handler( + aten.max_pool2d_with_indices_backward.default, + add_to_fallback_set=False, +) + + +@register_lowering(aten.max_pool2d_with_indices_backward, type_promotion_kind=None) +def max_pool2d_with_indices_backward( + grad_output, x, kernel_size, stride, padding, dilation, ceil_mode, indices +): + if padding == 0: + padding = [0, 0] + if dilation == 1: + dilation = [1, 1] + if not stride: + stride = kernel_size + + assert isinstance(x, TensorBox) + assert len(kernel_size) == 2 + assert len(stride) == 2 + assert len(padding) == 2 + assert len(dilation) == 2 + assert len(x.get_size()) in (3, 4) + + # we will read this many times, so make sure it is computed + grad_output.realize_hint() + gO_stride = grad_output.maybe_get_stride() + x_stride: Optional[Sequence[Any]] + if isinstance(x, TensorBox) and isinstance(x.data.data, Pointwise): # type: ignore[attr-defined] + data = x.data.data # type: ignore[attr-defined] + device = data.get_device() + assert device is not None + x_buffer = ir.ComputedBuffer( + name=None, + layout=ir.FlexibleLayout( + device=device, + dtype=data.get_dtype(), + size=data.get_size(), + ), + data=data, + ) + x_buffer.decide_layout() + x_stride = x_buffer.get_stride() + else: + x_stride = x.maybe_get_stride() + + is_channels_last = (x_stride is not None and x_stride[1] == 1) or ( + gO_stride is not None and gO_stride[1] == 1 + ) + if any(d != 1 for d in dilation): + # dilation NYI + return fallback_max_pool2d_with_indices_backward( + grad_output, x, kernel_size, stride, padding, dilation, ceil_mode, indices + ) + + *_batch, _height, width = x.get_size() + *_, pooled_height, pooled_width = grad_output.get_size() + + indices_loader = indices.make_loader() + grad_loader = grad_output.make_loader() + new_size = list(x.get_size()) + + h_window_size = max( + max(FloorDiv(h, stride[0]) - max(0, FloorDiv(h - kernel_size[0], stride[0])), 1) + for h in range(kernel_size[0] * 2) + ) + w_window_size = max( + max(FloorDiv(w, stride[1]) - max(0, FloorDiv(w - kernel_size[1], stride[1])), 1) + for w in range(kernel_size[1] * 2) + ) + + window_size = h_window_size * w_window_size + + if window_size > 25: + # Kernel size too big. Results in hard-to-optimize Triton code. Use fallback. + return fallback_max_pool2d_with_indices_backward( + grad_output, x, kernel_size, stride, padding, dilation, ceil_mode, indices + ) + + indices_size = indices.get_size() + + def fn(idx): + *prefix, h, w = idx + index_test = ops.index_expr(h * width + w, torch.int32) + h = h + padding[0] + w = w + padding[1] + phstart = ops.index_expr( + FloorDiv(h - kernel_size[0] + stride[0], stride[0]), torch.int32 + ) + pwstart = ops.index_expr( + FloorDiv(w - kernel_size[1] + stride[1], stride[1]), torch.int32 + ) + phend = ops.index_expr(FloorDiv(h, stride[0]) + 1, torch.int32) + pwend = ops.index_expr(FloorDiv(w, stride[1]) + 1, torch.int32) + + phstart = ops.maximum(phstart, ops.constant(0, torch.int32)) + pwstart = ops.maximum(pwstart, ops.constant(0, torch.int32)) + phend = ops.minimum(phend, ops.index_expr(pooled_height, torch.int32)) + pwend = ops.minimum(pwend, ops.index_expr(pooled_width, torch.int32)) + + gradient = None + for ph_ in range(h_window_size): + for pw_ in range(w_window_size): + ph = ops.add(phstart, ops.constant(ph_, torch.int32)) + pw = ops.add(pwstart, ops.constant(pw_, torch.int32)) + grad_index = [ + *prefix, + ops.indirect_indexing( + ops.minimum(ph, ops.sub(phend, ops.constant(1, torch.int32))), + indices_size[-2], + check=False, + ), + ops.indirect_indexing( + ops.minimum(pw, ops.sub(pwend, ops.constant(1, torch.int32))), + indices_size[-1], + check=False, + ), + ] + + index_actual = indices_loader(grad_index) + grad_part = grad_loader(grad_index) + check = ops.eq(index_actual, index_test) + + if gradient is None: + # don't need mask for 0, 0 + gradient = ops.where( + check, grad_part, ops.constant(0.0, torch.float32) + ) + else: + mask = ops.and_( + ops.and_( + ops.lt(ph, phend), + ops.lt(pw, pwend), + ), + check, + ) + gradient = ops.where(mask, ops.add(gradient, grad_part), gradient) + assert gradient is not None + return gradient + + out = Pointwise.create( + device=grad_output.get_device(), + dtype=grad_output.get_dtype(), + inner_fn=fn, + ranges=new_size, + ) + if is_channels_last: + return ir.ExternKernel.require_channels_last(out) + else: + return out + + +def pad_adaptive_loader(x, pad_val=0.0): + x_loader = x.make_loader() + + def load(prefix, increments, start_indices, end_indices): + ih, iw = increments + h_start_index, w_start_index = start_indices + h_end_index, w_end_index = end_indices + + mask = ops.and_( + ops.lt( + ops.index_expr(h_start_index + ih, torch.int64), + ops.index_expr(h_end_index, torch.int64), + ), + ops.lt( + ops.index_expr(w_start_index + iw, torch.int64), + ops.index_expr(w_end_index, torch.int64), + ), + ) + + return ops.masked( + mask, + lambda: x_loader([*prefix, h_start_index + ih, w_start_index + iw]), + pad_val, + ) + + return load + + +def compute_indices_adaptive_pooling(start_index, end_index, h_in, w_in, h_out, w_out): + h_start_index = functools.partial(start_index, out_dim=h_out, inp_dim=h_in) + h_end_index = functools.partial(end_index, out_dim=h_out, inp_dim=h_in) + + w_start_index = functools.partial(start_index, out_dim=w_out, inp_dim=w_in) + w_end_index = functools.partial(end_index, out_dim=w_out, inp_dim=w_in) + + return h_start_index, h_end_index, w_start_index, w_end_index + + +def _adaptive_pooling_fn( + start_index, end_index, kernel_maxes, in_sizes, out_sizes, pooling_fn +): + h_in, w_in = in_sizes + h_out, w_out = out_sizes + + ( + h_start_index_fn, + h_end_index_fn, + w_start_index_fn, + w_end_index_fn, + ) = compute_indices_adaptive_pooling( + start_index, end_index, h_in, w_in, h_out, w_out + ) + + def fn(idx, loader): + *prefix, bh, bw = idx + + h_start_index = h_start_index_fn(bh) + h_end_index = h_end_index_fn(bh) + + w_start_index = w_start_index_fn(bw) + w_end_index = w_end_index_fn(bw) + + result = None + for ih, iw in itertools.product(range(kernel_maxes[0]), range(kernel_maxes[1])): + val = loader( + prefix, + [ih, iw], + [h_start_index, w_start_index], + [h_end_index, w_end_index], + ) + if result is None: + result = val + else: + result = pooling_fn(val, result) + return result + + return fn + + +def _adaptive_pooling_fn_with_idx( + start_index, end_index, kernel_maxes, in_sizes, out_sizes, pooling_fn +): + h_in, w_in = in_sizes + h_out, w_out = out_sizes + + ( + h_start_index_fn, + h_end_index_fn, + w_start_index_fn, + w_end_index_fn, + ) = compute_indices_adaptive_pooling( + start_index, end_index, h_in, w_in, h_out, w_out + ) + + def fn(idx, loader): + *prefix, bh, bw = idx + + h_start_index = h_start_index_fn(bh) + h_end_index = h_end_index_fn(bh) + + w_start_index = w_start_index_fn(bw) + w_end_index = w_end_index_fn(bw) + + maxval = None + maxindex = None + for ih, iw in itertools.product(range(kernel_maxes[0]), range(kernel_maxes[1])): + val = loader( + prefix, + [ih, iw], + [h_start_index, w_start_index], + [h_end_index, w_end_index], + ) + + index = ops.index_expr( + (h_start_index + ih) * w_in + w_start_index + iw, torch.int64 + ) + + if maxindex is None: + maxindex = index + else: + maxindex = ops.where(ops.gt(val, maxval), index, maxindex) + + if maxval is None: + maxval = val + else: + maxval = pooling_fn(val, maxval) + + return maxindex + + return fn + + +fallback_adaptive_avg_pool2d = fallback_handler( + aten._adaptive_avg_pool2d.default, add_to_fallback_set=False +) + + +@register_lowering(aten._adaptive_avg_pool2d) +def _adaptive_avg_pool2d(x, output_size): + if x.get_dtype() == torch.int64: + # not supported in eager + raise RuntimeError("'adaptive_avg_pool2d' not implemented for 'Long'") + assert isinstance(x, TensorBox) + assert len(output_size) == 2 + x.realize_hint() + + *batch, h_in, w_in = x.get_size() + + h_in = V.graph.sizevars.guard_int(h_in) + w_in = V.graph.sizevars.guard_int(w_in) + + h_out, w_out = output_size + + # no-op if the same input and output + if h_in == h_out and w_in == w_out: + return clone(x) + + if h_out == 0 or w_out == 0: + o_size = [*batch, h_out, w_out] + return empty(o_size, dtype=x.get_dtype(), device=x.get_device()) + if h_in % h_out == 0 and w_in % w_out == 0: + kernel_size = [FloorDiv(h_in, h_out), FloorDiv(w_in, w_out)] + return avg_pool2d(x, kernel_size) + + h_kernel_max = ceildiv((h_in + h_out - 1), h_out) + w_kernel_max = ceildiv((w_in + w_out - 1), w_out) + + new_size = list(batch) + [h_out, w_out] + dtype = x.get_dtype() + + window_size = h_kernel_max * w_kernel_max + if window_size > 25: + # Kernel size too big. Results in hard-to-optimize Triton code. Use fallback. + return fallback_adaptive_avg_pool2d(x, output_size) + + def start_index(index, out_dim, inp_dim): + return FloorDiv((index * inp_dim), out_dim) + + def end_index(index, out_dim, inp_dim): + return FloorDiv((index + 1) * inp_dim + out_dim - 1, out_dim) + + fn_sum = _adaptive_pooling_fn( + start_index=start_index, + end_index=end_index, + kernel_maxes=[h_kernel_max, w_kernel_max], + in_sizes=[h_in, w_in], + out_sizes=[h_out, w_out], + pooling_fn=ops.add, + ) + + ones_loader = pad_adaptive_loader(ones_like(x)) + + def fn(idx): + return ops.truediv( + fn_sum(idx, pad_adaptive_loader(x)), fn_sum(idx, ones_loader) + ) + + rv = Pointwise.create( + device=x.get_device(), + dtype=dtype, + inner_fn=fn, + ranges=new_size, + ) + # TODO: should we force these to be realized? + return rv + + +fallback_adaptive_max_pool2d = fallback_handler( + aten.adaptive_max_pool2d.default, add_to_fallback_set=False +) + + +@register_lowering(aten.adaptive_max_pool2d) +def adaptive_max_pool2d(x, output_size): + if x.get_dtype() == torch.int64: + # not supported in eager + raise RuntimeError("adaptive_max_pool2d not implemented for Long") + assert isinstance(x, TensorBox) + assert len(output_size) == 2 + x.realize_hint() + + *batch, h_in, w_in = x.get_size() + + h_in = V.graph.sizevars.guard_int(h_in) + w_in = V.graph.sizevars.guard_int(w_in) + + h_out, w_out = output_size + + if h_out == 0 or w_out == 0: + o_size = [*batch, h_out, w_out] + return empty(o_size, dtype=x.get_dtype(), device=x.get_device()), empty( + o_size, dtype=torch.int64, device=x.get_device() + ) + + if h_in % h_out == 0 and w_in % w_out == 0: + # This is handled by a decomposition + raise ValueError + + h_kernel_max = ceildiv((h_in + h_out - 1), h_out) + w_kernel_max = ceildiv((w_in + w_out - 1), w_out) + + new_size = list(batch) + [h_out, w_out] + dtype = x.get_dtype() + + window_size = h_kernel_max * w_kernel_max + if window_size > 25: + # Kernel size too big. Results in hard-to-optimize Triton code. Use fallback. + return fallback_adaptive_max_pool2d(x, output_size) + + def start_index(index, out_dim, inp_dim): + return FloorDiv((index * inp_dim), out_dim) + + def end_index(index, out_dim, inp_dim): + return FloorDiv((index + 1) * inp_dim + out_dim - 1, out_dim) + + inner_func_max_val = _adaptive_pooling_fn( + start_index=start_index, + end_index=end_index, + kernel_maxes=[h_kernel_max, w_kernel_max], + in_sizes=[h_in, w_in], + out_sizes=[h_out, w_out], + pooling_fn=ops.maximum, + ) + + inner_func_max_idx = _adaptive_pooling_fn_with_idx( + start_index=start_index, + end_index=end_index, + kernel_maxes=[h_kernel_max, w_kernel_max], + in_sizes=[h_in, w_in], + out_sizes=[h_out, w_out], + pooling_fn=ops.maximum, + ) + + def inner_fn_max_val(idx): + return inner_func_max_val(idx, pad_adaptive_loader(x, float("-inf"))) + + def inner_fn_max_idx(idx): + return inner_func_max_idx(idx, pad_adaptive_loader(x, float("-inf"))) + + rv = Pointwise.create( + device=x.get_device(), + dtype=dtype, + inner_fn=inner_fn_max_val, + ranges=new_size, + ) + ri = Pointwise.create( + device=x.get_device(), + dtype=torch.int64, + inner_fn=inner_fn_max_idx, + ranges=new_size, + ) + return rv, ri + + +def _fractional_pooling_offsets(samples, in_sz, out_sz, kernel_sz, dim, ndims): + out_sz = out_sz[dim] + in_sz = in_sz[dim] + kernel_sz = kernel_sz[dim] + samples_loader = samples.make_loader() + + def load(prefix, i): + # Handle indexing for samples tensor correctly for different input dimensions + # samples tensor always has shape (N, C, 2) for fractional_max_pool2d where: + # - N=1 for 3D inputs (C,H,W), N=batch_size for 4D inputs (N,C,H,W) + # - C=num_channels + # - 2 for the two spatial dimensions (height, width) + samples_shape = samples.get_size() + + if len(samples_shape) == 3: # Expected: (N, C, 2) + if len(prefix) == 1: + # 3D input case: prefix=(channel,), samples=(1, C, 2) + # Access: samples[0, channel, dim] + sample = samples_loader([0, prefix[0], ndims - 1 - dim]) + elif len(prefix) >= 2: + # 4D+ input case: prefix=(batch, channel, ...), samples=(batch, C, 2) + # Access: samples[batch, channel, dim] + sample = samples_loader([prefix[0], prefix[1], ndims - 1 - dim]) + else: + # Edge case - shouldn't happen for valid fractional pooling + sample = samples_loader([0, 0, ndims - 1 - dim]) + else: + # Fallback for unexpected tensor shapes + sample = samples_loader([*prefix, ndims - 1 - dim]) + i_expr = ops.index_expr(i, samples.get_dtype()) + diff = ops.index_expr(in_sz - kernel_sz, torch.int64) + out_sz_expr = ops.index_expr(out_sz - 1, torch.int64) + alpha = ops.truediv( + ops.to_dtype(diff, torch.float64), ops.to_dtype(out_sz_expr, torch.float64) + ) + alpha = ops.where(ops.eq(out_sz_expr, 0), 0, alpha) + seq_i = ops.trunc((i_expr + sample) * alpha) - ops.trunc(sample * alpha) + seq_i = ops.to_dtype(seq_i, torch.int64) + mask = ops.lt(i_expr, out_sz_expr) + return ops.indirect_indexing(ops.where(mask, seq_i, diff), sympy.sympify(in_sz)) + + return load + + +@register_lowering(aten.fractional_max_pool2d) +def fractional_max_pool2d(x, kernel_size, output_size, random_samples): + return _fractional_max_pool(x, kernel_size, output_size, random_samples, n_dim=2) + + +@register_lowering(aten.fractional_max_pool3d) +def fractional_max_pool3d(x, kernel_size, output_size, random_samples): + return _fractional_max_pool(x, kernel_size, output_size, random_samples, n_dim=3) + + +def _fractional_max_pool(x, kernel_size, output_size, random_samples, n_dim): + x.realize_hint() + batch, inp_dhw = x.shape[:-n_dim], x.shape[-n_dim:] + + with config.patch(unroll_reductions_threshold=25): + dhw_index_fn = [ + _fractional_pooling_offsets( + samples=random_samples, + in_sz=inp_dhw, + out_sz=output_size, + kernel_sz=kernel_size, + ndims=n_dim, + dim=d, + ) + for d in range(n_dim) + ] + + x_loader = x.make_loader() + + def fn_inner(idx, reduction_idx): + prefix = idx[:-n_dim] + return x_loader([*prefix, *increments_to_index(idx, reduction_idx)]) + + def increments_to_index(idx, reduction_idx): + prefix = idx[:-n_dim] + bdhw = idx[-n_dim:] + return [ + dhw_index_fn[d](prefix, bdhw[d]) + reduction_idx[d] + for d in range(n_dim) + ] + + new_size = list(batch) + list(output_size) + dtype = x.get_dtype() + result = Reduction.create( + reduction_type="max", + input_node=x, + device=x.get_device(), + dst_dtype=dtype, + src_dtype=dtype, + inner_fn=fn_inner, + ranges=new_size, + reduction_ranges=kernel_size, + ) + offsets = Reduction.create( + reduction_type="argmax", + input_node=x, + device=x.get_device(), + dst_dtype=torch.int64, + src_dtype=dtype, + inner_fn=fn_inner, + ranges=new_size, + reduction_ranges=kernel_size, + ) + assert isinstance(result, TensorBox), result + if isinstance(result.data.data, Reduction): # type: ignore[attr-defined] + # Only realize if reduction isn't unrolled + result.realize() + assert isinstance(offsets, TensorBox), offsets + if isinstance(offsets.data.data, Reduction): # type: ignore[attr-defined] + # Only realize if reduction isn't unrolled + offsets.realize() + + indices = _pool_offsets_to_indices( + offsets, kernel_size, x.shape, increments_to_index + ) + return result, indices + + +@register_lowering(aten.upsample_nearest2d_backward.default) +def upsample_nearest2d_backward( + x, output_size=None, input_size=None, scales_h=None, scales_w=None +): + x.realize_hint() + + *_batch, inp_h, inp_w = x.get_size() + inp_h = V.graph.sizevars.guard_int(inp_h) + inp_w = V.graph.sizevars.guard_int(inp_w) + + # pyrefly: ignore [not-iterable] + *_batch, out_h, out_w = input_size + + if inp_h % out_h == 0 and inp_w % out_w == 0: + return avg_pool2d( + x, [FloorDiv(inp_h, out_h), FloorDiv(inp_w, out_w)], divisor_override=1 + ) + + h_kernel_max = ceildiv(inp_h, out_h) + w_kernel_max = ceildiv(inp_w, out_w) + + def start_index(index, out_dim, inp_dim): + return CeilDiv(index * inp_dim, sympy.sympify(out_dim)) + + def end_index(index, out_dim, inp_dim): + return start_index((index + 1), out_dim, inp_dim) + + fn_sum = _adaptive_pooling_fn( + start_index=start_index, + end_index=end_index, + kernel_maxes=[h_kernel_max, w_kernel_max], + in_sizes=[inp_h, inp_w], + out_sizes=[out_h, out_w], + pooling_fn=ops.add, + ) + + def fn(idx): + return fn_sum(idx, pad_adaptive_loader(x)) + + rv = Pointwise.create( + device=x.get_device(), + dtype=x.get_dtype(), + inner_fn=fn, + # pyrefly: ignore [no-matching-overload] + ranges=list(input_size), + ) + + return rv + + +fallback_avg_pool2d = fallback_handler( + aten.avg_pool2d.default, add_to_fallback_set=False +) +fallback_avg_pool3d = fallback_handler( + aten.avg_pool3d.default, add_to_fallback_set=False +) + + +@register_lowering(aten.avg_pool2d, type_promotion_kind=None) +def avg_pool2d( + x, + kernel_size, + stride=(), + padding=0, + ceil_mode=False, + count_include_pad=True, + divisor_override=None, +): + return _avg_poolnd( + x, + kernel_size, + stride, + padding, + ceil_mode, + count_include_pad, + divisor_override, + dim=2, + ) + + +@register_lowering(aten.avg_pool3d, type_promotion_kind=None) +def avg_pool3d( + x, + kernel_size, + stride=(), + padding=0, + ceil_mode=False, + count_include_pad=True, + divisor_override=None, +): + return _avg_poolnd( + x, + kernel_size, + stride, + padding, + ceil_mode, + count_include_pad, + divisor_override, + dim=3, + ) + + +def _avg_poolnd( + x, + kernel_size, + stride, + padding, + ceil_mode, + count_include_pad, + divisor_override, + dim, +): + if not stride: + stride = kernel_size + if not padding: + padding = [0] * dim + kernel_size = pad_listlike(kernel_size, dim) + stride = pad_listlike(stride, dim) + padding = pad_listlike(padding, dim) + + assert isinstance(x, TensorBox) + assert len(kernel_size) == dim + assert len(stride) == dim + assert len(padding) == dim + assert len(x.get_size()) in (dim + 1, dim + 2) + + x.realize_hint() + batch = x.get_size()[:-dim] + h = x.get_size()[-dim:] + + h_out, ceil_modes = zip( + *[ + pooling_size(h[i], i, kernel_size, stride, padding, ceil_mode) + for i in range(dim) + ] + ) + + if any(padding) or any(ceil_modes): + x_loader = constant_boundary_condition(x, 0.0, dim=dim) + had_padding = True + else: + x_loader = x.make_loader() + had_padding = False + + new_size = list(batch) + list(h_out) + dtype = x.get_dtype() + + window_size = functools.reduce(operator.mul, kernel_size) + if window_size > 25: + # Kernel size too big. Results in hard-to-optimize Triton code. Use fallback. + if dim == 2: + fallback = fallback_avg_pool2d + elif dim == 3: + fallback = fallback_avg_pool3d + else: + raise ValueError(f"Unknown dim: {dim}") + + return fallback( + x, + kernel_size, + stride, + padding, + ceil_mode, + count_include_pad, + divisor_override, + ) + + def fn_sum(idx, loader): + prefix = idx[:-dim] + b = idx[-dim:] + total = None + for ih in itertools.product(*[range(kernel_size[i]) for i in range(dim)]): + inp = [b[i] * stride[i] + ih[i] - padding[i] for i in range(dim)] + val = loader([*prefix, *inp]) + if total is None: + total = val + else: + total = ops.add(val, total) + return total + + if not had_padding or divisor_override: + divisor = divisor_override if divisor_override else window_size + if dtype.is_floating_point: + scale = 1 / divisor + + def fn(idx): + return ops.mul(fn_sum(idx, x_loader), ops.constant(scale, dtype)) + + else: + + def fn(idx): + # C style integer division as done in native/cpu/AvgPoolKernel.cpp + return ops.truncdiv(fn_sum(idx, x_loader), ops.constant(divisor, dtype)) + + else: + + def fn(idx): + bh = idx[-dim:] + + divide_factors = [] + for i in range(dim): + hstart = bh[i] * stride[i] - padding[i] + hend = sympy.Min(hstart + kernel_size[i], h[i] + padding[i]) + if not count_include_pad: + hstart = sympy.Max(hstart, 0) + hend = sympy.Min(hend, h[i]) + factor = ops.index_expr(hend - hstart, torch.int32) + divide_factors.append(factor) + divide_factor = functools.reduce(ops.mul, divide_factors) + if dtype.is_floating_point: + return ops.truediv(fn_sum(idx, x_loader), divide_factor) + # C style integer division as done in native/cpu/AvgPoolKernel.cpp + return ops.truncdiv(fn_sum(idx, x_loader), divide_factor) + + rv = Pointwise.create( + device=x.get_device(), + dtype=dtype, + inner_fn=fn, + ranges=new_size, + ) + # TODO(jansel): should we force these to be realized? + return rv + + +fallback_avg_pool2d_backward = fallback_handler( + aten.avg_pool2d_backward.default, add_to_fallback_set=False +) + + +@register_lowering(aten.avg_pool2d_backward, type_promotion_kind=None) +def avg_pool2d_backward( + grad_output, + x, + kernel_size, + stride, + padding, + ceil_mode, + count_include_pad, + divisor_override=None, +): + assert divisor_override is None or divisor_override != 0, "divisor must be not zero" + if not stride: + stride = kernel_size + if not padding: + padding = [0, 0] + + assert isinstance(grad_output, TensorBox) + assert isinstance(x, TensorBox) + assert len(kernel_size) == 2 + assert len(stride) == 2 + assert len(padding) == 2 + assert len(x.get_size()) in (3, 4) + + grad_output.realize_hint() # we will read this many times, so make sure it is computed + + *_, height, width = x.get_size() + + _h_out, ceil_mode1 = pooling_size( + height, 0, kernel_size, stride, padding, ceil_mode + ) + _w_out, ceil_mode2 = pooling_size(width, 1, kernel_size, stride, padding, ceil_mode) + + grad_loader = grad_output.make_loader() + + had_padding = padding[0] or padding[1] or ceil_mode1 or ceil_mode2 + + *_, pooled_height, pooled_width = grad_output.get_size() + new_size = list(x.get_size()) + dtype = x.get_dtype() + + h_window_size = max( + max(FloorDiv(h, stride[0]) - max(0, FloorDiv(h - kernel_size[0], stride[0])), 1) + for h in range(kernel_size[0] * 2) + ) + w_window_size = max( + max(FloorDiv(w, stride[1]) - max(0, FloorDiv(w - kernel_size[1], stride[1])), 1) + for w in range(kernel_size[1] * 2) + ) + + window_size = h_window_size * w_window_size + if window_size > 25: + # Kernel size too big. Results in hard-to-optimize Triton code. Use fallback. + return fallback_avg_pool2d_backward( + grad_output, + x, + kernel_size, + stride, + padding, + ceil_mode, + count_include_pad, + divisor_override, + ) + + def compute_pool_size_without_padding(ph, pw): + """ + This computes the scaling factor that we will divide an element + by when `count_include_pad=False` + """ + stride_h = ops.constant(stride[0], torch.int32) + stride_w = ops.constant(stride[1], torch.int32) + pad_h = ops.constant(padding[0], torch.int32) + pad_w = ops.constant(padding[1], torch.int32) + kernel_h = ops.constant(kernel_size[0], torch.int32) + kernel_w = ops.constant(kernel_size[1], torch.int32) + hstart = ops.sub(ops.mul(ph, stride_h), pad_h) + wstart = ops.sub(ops.mul(pw, stride_w), pad_w) + hend = ops.minimum( + ops.add(hstart, kernel_h), + ops.add(ops.index_expr(height, torch.int32), pad_h), + ) + wend = ops.minimum( + ops.add(wstart, kernel_w), + ops.add(ops.index_expr(width, torch.int32), pad_w), + ) + hstart = ops.maximum(hstart, ops.constant(0, torch.int32)) + wstart = ops.maximum(wstart, ops.constant(0, torch.int32)) + hend = ops.minimum(hend, ops.index_expr(height, torch.int32)) + wend = ops.minimum(wend, ops.index_expr(width, torch.int32)) + divide_factor = ops.mul(ops.sub(hend, hstart), ops.sub(wend, wstart)) + return divide_factor + + def fn(idx): + *prefix, h, w = idx + h = h + padding[0] + w = w + padding[1] + phstart = ops.index_expr( + FloorDiv(h - kernel_size[0] + stride[0], stride[0]), torch.int32 + ) + pwstart = ops.index_expr( + FloorDiv(w - kernel_size[1] + stride[1], stride[1]), torch.int32 + ) + phend = ops.index_expr(FloorDiv(h, stride[0]) + 1, torch.int32) + pwend = ops.index_expr(FloorDiv(w, stride[1]) + 1, torch.int32) + + phstart = ops.maximum(phstart, ops.constant(0, torch.int32)) + pwstart = ops.maximum(pwstart, ops.constant(0, torch.int32)) + phend = ops.minimum(phend, ops.index_expr(pooled_height, torch.int32)) + pwend = ops.minimum(pwend, ops.index_expr(pooled_width, torch.int32)) + + gradient = None + for ph_ in range(h_window_size): + for pw_ in range(w_window_size): + ph = ops.add(phstart, ops.constant(ph_, torch.int32)) + pw = ops.add(pwstart, ops.constant(pw_, torch.int32)) + + if divisor_override is not None: + scale = divisor_override + elif count_include_pad or not had_padding: + scale = kernel_size[0] * kernel_size[1] + else: + scale = compute_pool_size_without_padding(ph, pw) + + part = ops.truediv( + grad_loader( + [ + *prefix, + ops.indirect_indexing( + ops.minimum( + ph, ops.sub(phend, ops.constant(1, torch.int32)) + ), + pooled_height, + check=False, + ), + ops.indirect_indexing( + ops.minimum( + pw, ops.sub(pwend, ops.constant(1, torch.int32)) + ), + pooled_width, + check=False, + ), + ] + ), + scale, + ) + + mask = ops.and_( + ops.lt(ph, phend), + ops.lt(pw, pwend), + ) + if gradient is None: + gradient = ops.where(mask, part, ops.constant(0.0, torch.float32)) + else: + gradient = ops.where(mask, ops.add(gradient, part), gradient) + assert gradient is not None + return gradient + + rv = Pointwise.create( + device=grad_output.get_device(), + dtype=dtype, + inner_fn=fn, + ranges=new_size, + ) + return rv + + +fallback_avg_pool3d_backward = fallback_handler( + aten.avg_pool3d_backward.default, add_to_fallback_set=False +) + + +@register_lowering(aten.avg_pool3d_backward, type_promotion_kind=None) +def avg_pool3d_backward( + grad_output, + x, + kernel_size, + stride, + padding, + ceil_mode, + count_include_pad, + divisor_override=None, +): + assert divisor_override is None or divisor_override != 0, "divisor must be not zero" + if not stride: + stride = kernel_size + if not padding: + padding = [0, 0, 0] + + assert isinstance(grad_output, TensorBox) + assert isinstance(x, TensorBox) + assert len(kernel_size) == 3 + assert len(stride) == 3 + assert len(padding) == 3 + assert len(x.get_size()) in (4, 5) + + grad_output.realize_hint() + + *_batch, depth, height, width = x.get_size() + + _d_out, ceil_mode_d = pooling_size( + depth, 0, kernel_size, stride, padding, ceil_mode + ) + _h_out, ceil_mode_h = pooling_size( + height, 1, kernel_size, stride, padding, ceil_mode + ) + _w_out, ceil_mode_w = pooling_size( + width, 2, kernel_size, stride, padding, ceil_mode + ) + + grad_loader = grad_output.make_loader() + had_padding = any(padding) or ceil_mode_d or ceil_mode_h or ceil_mode_w + + *_, pooled_depth, pooled_height, pooled_width = grad_output.get_size() + new_size = list(x.get_size()) + dtype = x.get_dtype() + + d_window_size, h_window_size, w_window_size = ( + max( + max(d // stride[i] - max(0, (d - kernel_size[i]) // stride[i]), 1) + for d in range(kernel_size[i] * 2) + ) + for i in range(3) + ) + + window_size = d_window_size * h_window_size * w_window_size + if window_size > 125: + # Kernel size too big. Results in hard-to-optimize Triton code. + return fallback_avg_pool3d_backward( + grad_output, + x, + kernel_size, + stride, + padding, + ceil_mode, + count_include_pad, + divisor_override, + ) + + def compute_pool_size_without_padding(pd, ph, pw): + stride_d, stride_h, stride_w = (ops.constant(s, torch.int32) for s in stride) + pad_d, pad_h, pad_w = (ops.constant(p, torch.int32) for p in padding) + kernel_d, kernel_h, kernel_w = ( + ops.constant(k, torch.int32) for k in kernel_size + ) + + dstart, hstart, wstart = ( + ops.sub(ops.mul(p, s), pad) + for p, s, pad in zip( + [pd, ph, pw], [stride_d, stride_h, stride_w], [pad_d, pad_h, pad_w] + ) + ) + dend, hend, wend = ( + ops.minimum( + ops.add(start, k), ops.add(ops.index_expr(dim, torch.int32), pad) + ) + for start, k, dim, pad in zip( + [dstart, hstart, wstart], + [kernel_d, kernel_h, kernel_w], + [depth, height, width], + [pad_d, pad_h, pad_w], + ) + ) + dstart, hstart, wstart = ( + ops.maximum(start, ops.constant(0, torch.int32)) + for start in [dstart, hstart, wstart] + ) + dend, hend, wend = ( + ops.minimum(end, ops.index_expr(dim, torch.int32)) + for end, dim in zip([dend, hend, wend], [depth, height, width]) + ) + divide_factor = ops.mul( + ops.mul(ops.sub(dend, dstart), ops.sub(hend, hstart)), ops.sub(wend, wstart) + ) + return divide_factor + + def fn(idx): + *prefix, d, h, w = idx + d, h, w = (v + pad for v, pad in zip([d, h, w], padding)) + + pdstart, phstart, pwstart = ( + ops.index_expr(FloorDiv(v - k + s, s), torch.int32) + for v, k, s in zip([d, h, w], kernel_size, stride) + ) + + pdend, phend, pwend = ( + ops.index_expr(FloorDiv(v, s) + 1, torch.int32) + for v, s in zip([d, h, w], stride) + ) + + pdstart, phstart, pwstart = ( + ops.maximum(pstart, ops.constant(0, torch.int32)) + for pstart in [pdstart, phstart, pwstart] + ) + pdend, phend, pwend = ( + ops.minimum(pend, ops.index_expr(pooled_dim, torch.int32)) + for pend, pooled_dim in zip( + [pdend, phend, pwend], [pooled_depth, pooled_height, pooled_width] + ) + ) + + gradient = None + # Iterate over the 3D region to accumulate gradients + for pd_ in range(d_window_size): + for ph_ in range(h_window_size): + for pw_ in range(w_window_size): + pd, ph, pw = ( + ops.add(pstart, ops.constant(p_, torch.int32)) + for pstart, p_ in zip( + [pdstart, phstart, pwstart], [pd_, ph_, pw_] + ) + ) + + if divisor_override is not None: + scale = divisor_override + elif count_include_pad or not had_padding: + scale = kernel_size[0] * kernel_size[1] * kernel_size[2] + else: + scale = compute_pool_size_without_padding(pd, ph, pw) + + part = ops.truediv( + grad_loader( + [ + *prefix, + ops.indirect_indexing( + ops.minimum( + pd, ops.sub(pdend, ops.constant(1, torch.int32)) + ), + pooled_depth, + check=False, + ), + ops.indirect_indexing( + ops.minimum( + ph, ops.sub(phend, ops.constant(1, torch.int32)) + ), + pooled_height, + check=False, + ), + ops.indirect_indexing( + ops.minimum( + pw, ops.sub(pwend, ops.constant(1, torch.int32)) + ), + pooled_width, + check=False, + ), + ] + ), + scale, + ) + + mask = ops.and_( + ops.and_(ops.lt(pd, pdend), ops.lt(ph, phend)), + ops.lt(pw, pwend), + ) + if gradient is None: + gradient = ops.where( + mask, part, ops.constant(0.0, torch.float32) + ) + else: + gradient = ops.where(mask, ops.add(gradient, part), gradient) + assert gradient is not None + return gradient + + rv = Pointwise.create( + device=grad_output.get_device(), + dtype=dtype, + inner_fn=fn, + ranges=new_size, + ) + return rv + + +def _validate_reduction_axis(x, axis): + size = x.get_size() + if isinstance(axis, int): + axis = [axis] + elif not axis: + axis = range(len(size)) + if len(size) == 0: + assert tuple(axis) in [(), (0,), (-1,)], f"invalid axis: {axis}" + return [] + axis = list(axis) + for i in range(len(axis)): + if axis[i] < 0: + axis[i] += len(size) if len(size) else 1 + assert 0 <= axis[i] < len(size) or (len(size) == 0 and axis[i] == 0) + assert len(OrderedSet(axis)) == len(axis), "reduction axis not unique" + return axis + + +def _make_reduction_inner( + x, *, axis, keepdims, dtype, override_return_dtype, reduction_type=None +): + if dtype is not None: + x = to_dtype(x, dtype) + size = x.get_size() + axis = OrderedSet[int](_validate_reduction_axis(x, axis)) + + kept_sizes = [] + kept_idx = [] + reduced_sizes = [] + reduced_idx = [] + for i in range(len(size)): + if i in axis: + reduced_idx.append(i) + reduced_sizes.append(size[i]) + else: + kept_idx.append(i) + kept_sizes.append(size[i]) + + # For argmax/argmin compute logical indices when the tensor has non-contiguous layout. + should_compute_logical_index = False + if ( + reduction_type in ("argmax", "argmin") + and len(reduced_sizes) > 1 + and is_triton(x) + ): + if isinstance(x.data, PermuteView): + should_compute_logical_index = True + elif isinstance(x.data, ir.ReinterpretView) or ( + isinstance(x.data, ir.StorageBox) and isinstance(x.data.data, ir.Buffer) + ): + layout = x.get_layout() + should_compute_logical_index = ( + layout.is_transposed() or not layout.is_contiguous() + ) + + def loader(index, reduction_index): + assert len(reduction_index) == len(reduced_idx) + if keepdims: + assert len(index) == len(size) + index = [index[i] for i in kept_idx] + assert len(index) == len(kept_idx) + new_index = [None] * (len(index) + len(reduction_index)) + for idx, var in itertools.chain( + zip(kept_idx, index), zip(reduced_idx, reduction_index) + ): + new_index[idx] = var + value = inner_loader(new_index) + + # For argmax/argmin, return tuple with logical linear index if needed + if should_compute_logical_index: + rindex = [sympy.expand(i) for i in reduction_index] + + # Compute linear index in row-major order + # For reduction_ranges = [4, 6]: linear_index = r0 * 6 + r1 + linear_idx = rindex[0] + for i in range(1, len(rindex)): + linear_idx = linear_idx * reduced_sizes[i] + rindex[i] + + return (value, ops.index_expr(linear_idx, torch.int64)) + + return value + + if keepdims: + new_size = list(size) + for i in reduced_idx: + new_size[i] = sympy.S.One + else: + new_size = kept_sizes + + inner_loader = x.make_loader() + return dict( + device=x.get_device(), + dst_dtype=override_return_dtype or x.get_dtype(), + src_dtype=x.get_dtype(), + inner_fn=loader, + ranges=new_size, + reduction_ranges=reduced_sizes, + ) + + +def make_reduction(reduction_type: ReductionType, override_return_dtype=None): + def inner(x, axis=None, keepdims=False, *, dtype=None): + kwargs = _make_reduction_inner( + x, + axis=axis, + keepdims=keepdims, + dtype=dtype, + override_return_dtype=override_return_dtype, + reduction_type=reduction_type, + ) + result = Reduction.create(reduction_type=reduction_type, input_node=x, **kwargs) + if isinstance( + result.data.data, # type: ignore[attr-defined, attr-type, union-attr] + Reduction, + ): # Only realize if reduction isn't unrolled + result.realize() + return result + + return inner + + +def _make_scan_inner(x, *, axis, dtype): + if dtype is not None: + x = to_dtype(x, dtype) + axis = _validate_dim(x, axis) + + return dict( + device=x.get_device(), + dtypes=(x.get_dtype(),), + inner_fns=(x.make_loader(),), + size=x.get_size(), + axis=axis, + ) + + +@register_lowering(aten.mean) +def mean(x, axis=None, keepdim=False, *, dtype=None): + if dtype is not None: + x = to_dtype(x, dtype) + size = x.get_size() + axis = _validate_reduction_axis(x, axis) + # compute in higher-precision until end of mean lowering + output_dtype = x.get_dtype() + if output_dtype in (torch.float16, torch.bfloat16): + x = to_dtype(x, torch.float) + sum_result = sum_(x, axis, keepdim) + denom = sympy_product(size[i] for i in axis) + denom = ir.IndexingConstant(index=denom, dtype=x.get_dtype(), device=x.get_device()) + denom = ExpandView.create(denom, list(sum_result.get_size())) + return to_dtype(div(sum_result, denom), output_dtype) + + +def var_mean_sum_(x, axis, correction, keepdim, return_mean): + if correction is None: + correction = 1 + + size = x.get_size() + axis = _validate_reduction_axis(x, axis) + x_mean = mean(x, axis, keepdim=True) + if return_mean: + x_mean.realize() + + diffs = square(sub(x, x_mean)) + sum_result = sum_(diffs, axis, keepdim) + + denom = sympy_product(size[i] for i in axis) + if correction: + denom = sympy.Max(denom - correction, 0) + denom = ir.IndexingConstant(index=denom, dtype=x.get_dtype(), device=x.get_device()) + denom = ExpandView.create(denom, list(sum_result.get_size())) + x_var = div(sum_result, denom) + if not return_mean: + return (x_var,) + + x_mean = x_mean if keepdim else squeeze(x_mean, axis) + return x_var, x_mean + + +def use_two_step_variance(x, axis, keepdim): + # Instead of unrolling welford, just unroll the simpler two-step var + axis = _validate_reduction_axis(x, axis) + kwargs = _make_reduction_inner( + x, axis=axis, keepdims=keepdim, dtype=None, override_return_dtype=None + ) + + ranges = kwargs["ranges"] + reduction_numel = sympy_product(kwargs["reduction_ranges"]) + return ( + isinstance(reduction_numel, sympy.Integer) + and int(reduction_numel) < config.unroll_reductions_threshold + and sympy_product(ranges) != 1 + ) + + +def var_mean_welford_(x, axis, *, correction, keepdim, return_mean): + if correction is None: + correction = 1 + + kwargs = _make_reduction_inner( + x, axis=axis, keepdims=keepdim, dtype=None, override_return_dtype=None + ) + loader = kwargs.pop("inner_fn") + kwargs.pop("dst_dtype") + kwargs.pop("src_dtype") + + mean, m2, _ = ir.WelfordReduction.create( + inner_fns=(loader,), + reduction_type="welford_reduce", + dtype=x.get_dtype(), + **kwargs, + ) + m2.realize() + + dtype = x.get_dtype() + size = x.get_size() + axis = _validate_reduction_axis(x, axis) + rnumel = sympy_product(size[i] for i in axis) + + def get_constant_or_index_expr(x, dtype): + if isinstance(x, sympy.Expr) and not x.is_number: + return ops.to_dtype(ops.index_expr(x, torch.int64), dtype) + return ops.constant(x, dtype) + + def scale_fn(data): + c = get_constant_or_index_expr(correction, dtype) + N = get_constant_or_index_expr(rnumel, dtype) + zero = ops.constant(0, dtype) + return data / ops.maximum(zero, N - c) + + var = make_pointwise(scale_fn)(m2) + + if return_mean: + mean.realize() + return var, mean + return (var,) + + +def var_mean_helper_(x, *, axis, correction, keepdim, return_mean): + out_dtype = x.get_dtype() + compute_dtype = get_computation_dtype(out_dtype) + x = to_dtype(x, compute_dtype, copy=False) + kwargs = dict( + x=x, + axis=axis, + correction=correction, + keepdim=keepdim, + return_mean=return_mean, + ) + output = ( + var_mean_sum_(**kwargs) + if use_two_step_variance(x, axis=axis, keepdim=keepdim) + else var_mean_welford_(**kwargs) + ) + output = tuple(to_dtype(x, out_dtype, copy=False) for x in output) + return output[0] if not return_mean else output + + +@register_lowering([aten.var, prims.var]) +def var_(x, axis=None, *, correction=None, keepdim=False): + return var_mean_helper_( + x, axis=axis, correction=correction, keepdim=keepdim, return_mean=False + ) + + +@register_lowering(aten.var_mean) +def var_mean(x, axis=None, *, correction=None, keepdim=False): + return var_mean_helper_( + x, axis=axis, correction=correction, keepdim=keepdim, return_mean=True + ) + + +def pow_recursive(x, y, dtype): + if y < 0: + return pow_recursive(ops.reciprocal(x), -y, dtype) + if y == 0: + return ops.constant(1, dtype) + if y == 1: + return x + + result = pow_recursive(x, y // 2, dtype) + result = ops.mul(result, result) + if (y % 2) == 1: + result = ops.mul(result, x) + return result + + +@make_pointwise +def pow_native(a, b): + return ops.pow(a, b) + + +fallback_pow_tensor_tensor = fallback_handler( + aten.pow.Tensor_Tensor, add_to_fallback_set=False +) +fallback_pow_scalar = fallback_handler(aten.pow.Scalar, add_to_fallback_set=False) +fallback_pow_tensor_scalar = fallback_handler( + aten.pow.Tensor_Scalar, add_to_fallback_set=False +) + + +@register_lowering(aten.pow, broadcast=True) +def pow(a, b): + if isinstance(b, float) and b == int(b): + return pow(a, int(b)) + elif isinstance(b, float) and b == 0.5: + return sqrt(a) + elif isinstance(b, int) and b == 1: + return clone(a) + + # Type promotion ensures all tensor arguments have the same type + dtype = next(x.get_dtype() for x in (a, b) if isinstance(x, ir.TensorBox)) + is_integer_pow = is_integer_dtype(dtype) + + # Optimize away small fixed powers, or for integers avoid falling back to ATen + embed_exponent = isinstance(b, int) and ( + -32 < b < 32 or (is_integer_pow and b >= 0) + ) + if embed_exponent: + loader = a.make_loader() + + def fn(idx): + return pow_recursive(loader(idx), b, a.get_dtype()) + + return Pointwise.create( + device=a.get_device(), + dtype=a.get_dtype(), + inner_fn=fn, + ranges=a.get_size(), + ) + + if isinstance(a, Number): + if a == 1: + return full_like(b, 1) + # pyrefly: ignore [missing-attribute] + if a == 2 and is_float_dtype(b.get_dtype()): + return exp2(b) + + if is_integer_pow: + # ops.pow doesn't work for integers + if isinstance(a, Number): + return fallback_pow_scalar(a, b) + elif isinstance(b, Number): + return fallback_pow_tensor_scalar(a, b) + else: + return fallback_pow_tensor_tensor(a, b) + + return pow_native(a, b) + + +def mutate_to(changed, val, unsafe_alias=False): + if isinstance(changed, TensorBox): + changed_data = changed.data + else: + changed_data = changed + if isinstance(val, TensorBox): + val = val.data + + if not isinstance(val, ir.StorageBox): + # introduce a copy to handle views + node = Pointwise.create( + device=changed.get_device(), + dtype=changed.get_dtype(), + inner_fn=val.make_loader(), + ranges=changed.get_size(), + ) + assert isinstance(node, (BaseView, MutableBox)) + val = node.data + assert isinstance(val, ir.StorageBox) + + if isinstance(changed_data, ir.StorageBox) and not ( + changed_data.is_input_buffer() + # In AOTI, module parameters and buffers are not lifted as graph inputs + or changed_data.is_module_buffer() + or isinstance(changed_data.data, ir.NopKernel) + ): + # Fast path, just swing the data pointer + val.realize() + changed_data.data = val.data + return changed + + ir.MutationLayoutSHOULDREMOVE.realize_into( + val, changed_data, unsafe_alias=unsafe_alias + ) + return changed + + +@register_lowering(aten.fill_) +def fill_(x, fill_value): + return mutate_to(x, full_like(x, fill_value)) + + +@register_lowering(aten.copy_, type_promotion_kind=None) +def copy_(dst, src, non_blocking=False): + if dst is src: + # dst.copy_(dst) can happen from the reinplacing pass + return dst + src = to_device(src, dst.get_device()) + src = to_dtype(src, dst.get_dtype()) + src = expand(src, dst.get_size()) + return mutate_to(dst, src) + + +@make_pointwise +def floordiv(a, b): + return ops.floordiv(a, b) + + +@make_pointwise +def truncdiv(a, b): + return ops.truncdiv(a, b) + + +@register_lowering(aten.div, broadcast=True) +def div_mode(a, b, rounding_mode=None): + both_integer = is_integer_type(a) and is_integer_type(b) + both_boolean = is_boolean_type(a) and is_boolean_type(b) + + # floordiv and truncdiv need special handling for integer tensors on Triton, + # see the discussion at https://github.com/triton-lang/triton/issues/605 + if rounding_mode == "floor": + assert not both_boolean, "floordiv operands can not be boolean at the same time" + return floordiv(a, b) if both_integer else floor(div(a, b)) + if rounding_mode == "trunc": + assert not both_boolean, "truncdiv operands can not be boolean at the same time" + return truncdiv(a, b) if both_integer else trunc(div(a, b)) + return div(a, b) + + +@register_lowering([aten.mul], broadcast=True) +def mul(a, b): + both_bool = is_boolean_type(a) and is_boolean_type(b) + if both_bool: + return logical_and(a, b) + else: + fn = ops_wrapper(aten.mul.__name__) + return make_pointwise(fn)(a, b) + + +def get_constant_value(x: ir.IRNode) -> Optional[ir.Constant]: + """Try convert an arbitrary IR node into an ir.Constant value""" + + # First try unwrapping the IRNode to see if it is already an ir.Constant + # Optional step, but avoids unnecessary inner_fn evaluation. + if isinstance(x, ir.MutableBox): + return get_constant_value(x.data) + if isinstance(x, ir.BaseView): + return get_constant_value(x.unwrap_view()) + if isinstance(x, ir.Constant): + return x + + # If the unwrapped node is not an ir.Constant, try evaluating inner_fn + # to see if the returned value is from an `ops.constant` call + if not isinstance(x, ir.Loops): + return None + + handler = torch._inductor.ops_handler.ExtractConstantsHandler(x.get_device()) + with ( + V.set_ops_handler(handler), + patch.object(ir.FlexibleLayout, "allow_indexing", True), + ): + out = x.inner_fn(*x.inner_fn_args()) + + assert isinstance(out, torch._inductor.virtualized.OpsValue) + if isinstance(out.value, ir.Constant): + return out.value + return None + + +# NOTE: prims.div maps to a / b in C, so performs truncation division on +# integer inputs and true division for floating and complex inputs. +@register_lowering([prims.div], broadcast=True) +def div_prim(a, b): + is_integral = all(is_boolean_type(x) or is_integer_type(x) for x in [a, b]) + + if is_integral: + return truncdiv(a, b) + + # Disable CPU optimization to avoid precision issues. + # see https://github.com/pytorch/pytorch/issues/157959 + if (divisor := get_constant_value(b)) is not None and a.get_device().type != "cpu": + # Replace divide by constant with multiply by reciprocal + + if divisor.value == 0: + reciprocal = math.copysign(float("inf"), divisor.value) + else: + reciprocal = 1.0 / divisor.value + return mul(a, reciprocal) + + def fn(*args): + return ops.truediv(*args) + + return make_pointwise(fn)(a, b) + + +@register_lowering( + [aten.true_divide, aten.div.Tensor], + broadcast=True, + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, +) +def div(a, b): + a, b = promote_constants( + (a, b), type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT + ) + return div_prim(a, b) + + +@register_lowering([aten.fmod, prims.fmod], broadcast=True) +def fmod(a, b): + is_integral = is_boolean_type(a) or is_integer_type(a) + + if is_integral: + + def fn(a, b): + return ops.mod(a, b) + + else: + + def fn(a, b): + return ops.fmod(a, b) + + return make_pointwise(fn)(a, b) + + +@register_lowering([aten.sum, prims.sum]) +def sum_(x, axis=None, keepdims=False, *, dtype=None): + if ( + is_integer_dtype(x.get_dtype()) or is_boolean_dtype(x.get_dtype()) + ) and dtype is None: + dtype = torch.int64 + + fn = make_reduction("sum", override_return_dtype=dtype) + return fn(x, axis, keepdims, dtype=dtype) + + +fallback_cumsum = fallback_handler(aten.cumsum.default) +fallback_cumprod = fallback_handler(aten.cumprod.default) +fallback_logcumsumexp = fallback_handler(aten.logcumsumexp.default) +fallback_cummax = fallback_handler(aten.cummax.default) +fallback_cummin = fallback_handler(aten.cummin.default) + + +@register_lowering(aten.cumsum) +def cumsum(x, axis=None, dtype=None): + if ( + is_integer_dtype(x.get_dtype()) or is_boolean_dtype(x.get_dtype()) + ) and dtype is None: + dtype = torch.int64 + + if len(x.get_size()) == 0: + assert axis in [0, -1] + dtype = dtype or x.get_dtype() + return to_dtype(x, dtype, copy=True) + + def combine_fn(a_tuple, b_tuple): + (a,) = a_tuple + (b,) = b_tuple + return (ops.add(a, b),) + + kwargs = _make_scan_inner(x, axis=axis, dtype=dtype) + (result,) = ir.Scan.create(**kwargs, combine_fn=combine_fn) + if result is None: + return fallback_cumsum(x, dim=axis, dtype=dtype) + return result + + +@register_lowering(aten.cumprod) +def cumprod(x, axis=None, dtype=None): + if ( + is_integer_dtype(x.get_dtype()) or is_boolean_dtype(x.get_dtype()) + ) and dtype is None: + dtype = torch.int64 + + if len(x.get_size()) == 0: + assert axis in [0, -1] + dtype = dtype or x.get_dtype() + return to_dtype(x, dtype, copy=True) + + def combine_fn(a_tuple, b_tuple): + (a,) = a_tuple + (b,) = b_tuple + return (ops.mul(a, b),) + + kwargs = _make_scan_inner(x, axis=axis, dtype=dtype) + (result,) = ir.Scan.create(**kwargs, combine_fn=combine_fn) + if result is None: + return fallback_cumprod(x, dim=axis, dtype=dtype) + return result + + +@register_lowering(aten.logcumsumexp) +def logcumsumexp(x, dim): + def log_add_exp_helper(a_tuple, b_tuple): + (a,) = a_tuple + (b,) = b_tuple + min_v = ops.minimum(a, b) + max_v = ops.maximum(a, b) + mask = (min_v != max_v) | (~ops.isinf(min_v)) + return (ops.where(mask, ops.log1p(ops.exp(min_v - max_v)) + max_v, a),) + + dtype = x.get_dtype() + if len(x.get_size()) == 0: + assert dim in [0, -1] + return clone(x) + + kwargs = _make_scan_inner(x, axis=dim, dtype=dtype) + (result,) = ir.Scan.create(**kwargs, combine_fn=log_add_exp_helper) + if result is None: + return fallback_logcumsumexp(x, dim=dim) + return result + + +@register_lowering(aten.cummax, type_promotion_kind=None) +def cummax(x, axis=None): + if len(x.get_size()) == 0: + assert axis in [0, -1] + return clone(x), empty_like(x, dtype=torch.int64) + + dtype = x.get_dtype() + combine_fn = ir.get_reduction_combine_fn( + "argmax", dtype=dtype, arg_break_ties_left=False + ) + + kwargs = _make_scan_inner(x, axis=axis, dtype=dtype) + kwargs["dtypes"] = (dtype, torch.int64) + kwargs["inner_fns"] = ( + x.make_loader(), + lambda idx: ops.index_expr(idx[axis], torch.int64), + ) + values, indices = ir.Scan.create(**kwargs, combine_fn=combine_fn) # type: ignore[arg-type] + if values is None: + return fallback_cummax(x, dim=axis) + return values, indices + + +@register_lowering(aten.cummin, type_promotion_kind=None) +def cummin(x, axis=None): + if len(x.get_size()) == 0: + assert axis in [0, -1] + return clone(x), empty_like(x, dtype=torch.int64) + + dtype = x.get_dtype() + combine_fn = ir.get_reduction_combine_fn( + "argmin", dtype=dtype, arg_break_ties_left=False + ) + + kwargs = _make_scan_inner(x, axis=axis, dtype=dtype) + kwargs["dtypes"] = (dtype, torch.int64) + kwargs["inner_fns"] = ( + x.make_loader(), + lambda idx: ops.index_expr(idx[axis], torch.int64), + ) + values, indices = ir.Scan.create(**kwargs, combine_fn=combine_fn) # type: ignore[arg-type] + if values is None: + return fallback_cummin(x, dim=axis) + return values, indices + + +@register_lowering(aten.prod) +def prod(x, axis=None, keepdims=False, *, dtype=None): + if ( + is_integer_dtype(x.get_dtype()) or is_boolean_dtype(x.get_dtype()) + ) and dtype is None: + dtype = torch.int64 + + fn = make_reduction("prod", override_return_dtype=dtype) + return fn(x, axis, keepdims, dtype=dtype) + + +@register_lowering(aten.any) +def reduce_any(x, dim=None, keepdim=False): + x = to_dtype(x, torch.bool) + return make_reduction("any")(x, axis=dim, keepdims=keepdim) + + +@register_lowering(aten.max, type_promotion_kind=None) +def reduce_max(x, dim=None, keepdim=False): + if dim is not None: + return ( + reduce_amax(x, axis=dim, keepdims=keepdim), + reduce_argmax(x, axis=dim, keepdims=keepdim), + ) + + return reduce_amax(x, axis=None, keepdims=keepdim) + + +@register_lowering(aten.min, type_promotion_kind=None) +def reduce_min(x, dim=None, keepdim=False): + if dim is not None: + return ( + reduce_amin(x, axis=dim, keepdims=keepdim), + reduce_argmin(x, axis=dim, keepdims=keepdim), + ) + + return reduce_amin(x, axis=None, keepdims=keepdim) + + +register_lowering(prims.xor_sum)(make_reduction("xor_sum")) +reduce_amax = register_lowering(aten.amax)(make_reduction("max")) +reduce_amin = register_lowering(aten.amin)(make_reduction("min")) +reduce_argmax = register_lowering(aten.argmax)( + make_reduction("argmax", override_return_dtype=torch.int64) +) +reduce_argmin = register_lowering(aten.argmin)( + make_reduction("argmin", override_return_dtype=torch.int64) +) + +add = register_pointwise( + aten.add, allow_alpha=True, override_fn_when_input_bool="logical_or" +) + +sort_fallback = fallback_handler(aten.sort.stable, add_to_fallback_set=False) + + +@register_lowering(aten.sort.stable, type_promotion_kind=None) +def sort_stable(x, *, stable=None, dim=-1, descending=False): + if stable is None: + stable = False + + shape = x.get_size() + device = x.get_device() + dim = canonicalize_dim(len(shape), dim) + if len(shape) == 0: + return clone(x), _full(0, device, torch.int64, shape) + + dim_size = shape[dim] if len(shape) else 1 + if not V.graph.sizevars.statically_known_lt(dim_size, torch.iinfo(torch.int16).max): + return sort_fallback(x, stable=stable, dim=dim, descending=descending) + + indices = iota( + dim_size, start=0, step=1, dtype=torch.int16, device=device, requires_grad=False + ) + view_shape = [1] * len(shape) + if len(shape): + view_shape[dim] = dim_size + indices = view(indices, view_shape) + indices = expand(indices, shape) + + values, indices = ir.Sort.create( + device=device, + dtypes=(x.dtype, indices.dtype), + inner_fns=(x.make_loader(), indices.make_loader()), + size=shape, + axis=dim, + stable=stable, + descending=descending, + ) + if values is None: + return sort_fallback(x, stable=stable, dim=dim, descending=descending) + + assert indices is not None + return values, to_dtype(indices, torch.int64) + + +@register_lowering(aten.sort.default, type_promotion_kind=None) +def sort(x, dim=-1, descending=False): + return sort_stable(x, stable=False, dim=dim, descending=descending) + + +def register_pointwise_numeric(op, name=None, triton_fallback=None): + return register_pointwise( + op, + name=name, + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + triton_fallback=triton_fallback, + ) + + +def register_pointwise_numeric_ldf64(op: torch._ops.OpOverloadPacket): + register_op_requires_libdevice_fp64(op.__name__) + return register_pointwise( + op, + type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT, + ) + + +rsqrt = register_pointwise_numeric(aten.rsqrt) +exp = register_pointwise_numeric_ldf64(aten.exp) +exp2 = register_pointwise_numeric(aten.exp2) +expm1 = register_pointwise_numeric(aten.expm1) +relu = register_pointwise(aten.relu) +sigmoid = register_pointwise_numeric_ldf64(aten.sigmoid) +sqrt = register_pointwise_numeric_ldf64(aten.sqrt) +square = register_pointwise(aten.square) +sub = register_pointwise(aten.sub, allow_alpha=True) +register_pointwise_numeric_ldf64(aten.cos) +register_pointwise_numeric_ldf64(aten.sin) +abs = register_pointwise(aten.abs) +bitwise_and = register_pointwise(aten.bitwise_and) +bitwise_left_shift = register_pointwise(aten.bitwise_left_shift) +bitwise_not = register_pointwise( + aten.bitwise_not, override_fn_when_input_bool="logical_not" +) +bitwise_or = register_pointwise(aten.bitwise_or) +bitwise_right_shift = register_pointwise(aten.bitwise_right_shift) +bitwise_xor = register_pointwise(aten.bitwise_xor) +register_pointwise_numeric(aten.lgamma) +erf = register_pointwise_numeric(aten.erf) +register_lowering( + aten.special_erf, type_promotion_kind=ELEMENTWISE_TYPE_PROMOTION_KIND.INT_TO_FLOAT +)(erf) + +register_pointwise_numeric(aten.log1p) +register_pointwise_numeric(aten.tan) +register_pointwise_numeric(aten.tanh) +register_pointwise_numeric_ldf64(aten.log) +logical_and = register_pointwise( + aten.logical_and, + type_promotion_kind=None, + convert_input_to_bool=True, + override_return_dtype=torch.bool, +) +logical_not = register_pointwise( + aten.logical_not, + type_promotion_kind=None, + convert_input_to_bool=True, + override_return_dtype=torch.bool, +) +logical_or = register_pointwise( + aten.logical_or, + type_promotion_kind=None, + convert_input_to_bool=True, + override_return_dtype=torch.bool, +) +logical_xor = register_pointwise( + aten.logical_xor, + type_promotion_kind=None, + convert_input_to_bool=True, + override_return_dtype=torch.bool, +) +maximum = register_pointwise(aten.maximum) +minimum = register_pointwise(aten.minimum) +register_lowering(aten.clamp_min)(maximum) +register_lowering(aten.clamp_max)(minimum) +neg = register_pointwise(aten.neg) +abs = register_pointwise(aten.abs) +reciprocal = register_pointwise_numeric(aten.reciprocal) +register_pointwise(aten.remainder) +sign = register_pointwise(aten.sign, override_fn_when_input_bool="identity") +register_pointwise(aten.ceil) +register_pointwise(aten.signbit, override_return_dtype=torch.bool) + +register_lowering(aten._neg_view)(neg) + +register_pointwise(aten.le, override_return_dtype=torch.bool) +register_pointwise(aten.lt, override_return_dtype=torch.bool) +register_pointwise(aten.ge, override_return_dtype=torch.bool) +gt = register_pointwise(aten.gt, override_return_dtype=torch.bool) +register_pointwise(aten.eq, override_return_dtype=torch.bool) +register_pointwise(aten.ne, override_return_dtype=torch.bool) + +register_pointwise_numeric(aten.cosh) +register_pointwise_numeric(aten.sinh) +register_pointwise_numeric(aten.acos) +register_pointwise_numeric(aten.acosh) +register_pointwise_numeric(aten.asin) +register_pointwise_numeric(aten.asinh) +register_pointwise_numeric(aten.atan2) +register_pointwise_numeric(aten.atan) +register_pointwise_numeric(aten.atanh) +register_pointwise_numeric(aten.copysign) +register_pointwise_numeric(aten.erfc) +register_pointwise_numeric(aten.erfinv) +register_pointwise_numeric(aten.hypot) +register_pointwise_numeric(aten.log10) +register_pointwise_numeric(aten.log2) +register_pointwise_numeric(aten.nextafter) + +from .codegen.common import BackendFeature, pointwise_overrides_data + + +def _get_pointwise_overrides(ns, name): + data = pointwise_overrides_data[name] + op = getattr(ns, data.name, None) + if op is None: + return + + def make_triton_fallback(op): + if data.triton is None: + return fallback_handler(op) + + if isinstance(op, torch._ops.OpOverloadPacket): + for olname in op.overloads(): + ol = getattr(op, olname) + yield ol, data.type_promotion_kind, make_triton_fallback(ol) + else: + yield op, data.type_promotion_kind, make_triton_fallback(op) + + +for name in pointwise_overrides_data: + for op, type_promotion_kind, triton_fallback in _get_pointwise_overrides( + aten, name + ): + register_pointwise( + op, + name=name, + type_promotion_kind=type_promotion_kind, + triton_fallback=triton_fallback, + ) + + for op, type_promotion_kind, triton_fallback in _get_pointwise_overrides( + prims, name + ): + register_pointwise( + op, + name=name, + type_promotion_kind=type_promotion_kind, + triton_fallback=triton_fallback, + ) + + +foreach_add_list = register_foreach_pointwise( + aten._foreach_add.List, add, allow_alpha=True +) +foreach_add_scalar = register_foreach_pointwise( + aten._foreach_add.Scalar, add, allow_alpha=True +) +register_foreach_pointwise(aten._foreach_add.Tensor, add, allow_alpha=True) +foreach_mul_list = register_foreach_pointwise(aten._foreach_mul.List, mul) +register_foreach_pointwise(aten._foreach_mul.Tensor, mul) +foreach_mul_scalar = register_foreach_pointwise(aten._foreach_mul.Scalar, mul) +register_foreach_pointwise(aten._foreach_sub.List, sub) +register_foreach_pointwise(aten._foreach_sub.Scalar, sub) +register_foreach_pointwise(aten._foreach_neg.default, neg) +register_foreach_pointwise(aten._foreach_abs.default, abs) +register_foreach_pointwise(aten._foreach_pow.Scalar, pow) +register_foreach_pointwise(aten._foreach_pow.List, pow) +register_foreach_pointwise(aten._foreach_pow.ScalarAndTensor, pow) +foreach_div_list = register_foreach_pointwise(aten._foreach_div.List, div) +register_foreach_pointwise(aten._foreach_div.Tensor, div) +foreach_div_scalar = register_foreach_pointwise(aten._foreach_div.Scalar, div) +register_foreach_pointwise(aten._foreach_sqrt, sqrt) +register_foreach_pointwise(aten._foreach_rsqrt, rsqrt) +register_foreach_pointwise(aten._foreach_maximum.List, maximum) +register_foreach_pointwise(aten._foreach_maximum.Scalar, maximum) +register_foreach_pointwise(aten._foreach_minimum.List, minimum) +register_foreach_pointwise(aten._foreach_minimum.Scalar, minimum) +register_foreach_pointwise(aten._foreach_clamp_min.List, maximum) +register_foreach_pointwise(aten._foreach_clamp_min.Scalar, maximum) +register_foreach_pointwise(aten._foreach_clamp_max.List, minimum) +register_foreach_pointwise(aten._foreach_clamp_max.Scalar, minimum) +register_foreach_pointwise(aten._foreach_reciprocal, reciprocal) +register_foreach_pointwise(aten._foreach_sign, sign) +foreach_copy = register_foreach_pointwise(aten._foreach_copy, copy) + + +# these are only encountered as outputs of the graph +# reinplacing epilogue copies improves compile time +# by removing extra buffers sent to the scheduler. +def register_foreach_inplace(aten_op, outplace_aten_op, outplace_op): + inplaceable_foreach_ops[outplace_aten_op] = aten_op + inplace_foreach_ops.add(aten_op) + + def fn(*args, **kwargs): + results = outplace_op(*args, **kwargs) + mut_results = [] + for arg, result in zip(args[0], results): + mut_results.append(mutate_to(arg, result, unsafe_alias=True)) + + return mut_results + + _register_foreach_lowering(aten_op, fn) + + +register_foreach_inplace( + aten._foreach_add_.List, aten._foreach_add.List, foreach_add_list +) +register_foreach_inplace( + aten._foreach_add_.Scalar, aten._foreach_add.Scalar, foreach_add_scalar +) +register_foreach_inplace( + aten._foreach_mul_.List, aten._foreach_mul.List, foreach_mul_list +) +register_foreach_inplace( + aten._foreach_mul_.Scalar, aten._foreach_mul.Scalar, foreach_mul_scalar +) +register_foreach_inplace( + aten._foreach_div_.List, aten._foreach_div.List, foreach_div_list +) +register_foreach_inplace( + aten._foreach_div_.Scalar, aten._foreach_div.Scalar, foreach_div_scalar +) +register_foreach_inplace( + aten._foreach_copy_.default, aten._foreach_copy.default, foreach_copy +) + + +def register_inplace(aten_op, outplace_op): + @register_lowering(aten_op, type_promotion_kind=None) + def fn(*args, **kwargs): + result = outplace_op(*args, **kwargs) + result = to_dtype(result, args[0].get_dtype()) + return mutate_to(args[0], result) + + return fn + + +register_inplace(aten.add_, add) +register_inplace(aten.bitwise_and_, bitwise_and) +register_inplace(aten.bitwise_left_shift_, bitwise_left_shift) +register_inplace(aten.bitwise_not_, bitwise_not) +register_inplace(aten.bitwise_or_, bitwise_or) +register_inplace(aten.bitwise_right_shift_, bitwise_right_shift) +register_inplace(aten.bitwise_xor_, bitwise_xor) +register_inplace(aten.mul_, mul) +register_inplace(aten.div_.Tensor, div) +register_inplace(aten.div_.Tensor_mode, div_mode) +register_inplace(aten.logical_and_, logical_and) +register_inplace(aten.logical_not_, logical_not) +register_inplace(aten.logical_or_, logical_or) +register_inplace(aten.logical_xor_, logical_xor) +register_inplace(aten.sub_, sub) +register_inplace(aten.relu_, relu) +register_inplace(aten.sigmoid_, sigmoid) + + +register_lowering(aten.__and__)(bitwise_and) +register_lowering(aten.__lshift__)(bitwise_left_shift) +register_lowering(aten.__or__)(bitwise_or) +register_lowering(aten.__rshift__)(bitwise_right_shift) +register_lowering(aten.__xor__)(bitwise_xor) + +register_inplace(aten.__iand__, aten.__and__) +register_inplace(aten.__ilshift__, aten.__lshift__) +register_inplace(aten.__ior__, aten.__or__) +register_inplace(aten.__irshift__, aten.__rshift__) +register_inplace(aten.__ixor__, aten.__xor__) + + +@register_lowering(aten.sym_constrain_range) +def sym_constrain_range(a, min=None, max=None): + return None + + +@register_lowering(aten.sym_size.int) +def sym_size(a, dim): + val = V.graph.current_node.meta["val"] + if isinstance(val, torch.SymInt): + return val.node.expr + else: + return int(val) + + +@register_lowering(aten.sym_stride.int) +def sym_stride(a, dim): + val = V.graph.current_node.meta["val"] + if isinstance(val, torch.SymInt): + return val.node.expr + else: + return int(val) + + +@register_lowering(aten.sym_numel) +def sym_numel(a): + return a.get_numel() + + +for method, func in magic_methods.items(): + register_lowering(method_to_operator(method))(func) # type: ignore[arg-type] + + +@register_lowering(torch.sym_sum) +def sym_sum(args): + return sympy.Add(*args) + + +@register_lowering(aten._foobar) +def foobar(self, *args, **kwargs): + raise NotImplementedError("Helpful for debugging") + + +@register_lowering(torch.ops._inductor_test.realize) +def _realize(x): + x.realize() + return clone(x) + + +@register_lowering(torch.ops.inductor.resize_storage_bytes_) +def resize_storage_bytes_(variable, new_size): + variable.realize() + ir.ResizeStorageBytes(variable, new_size) + return variable + + +@register_lowering(torch.ops.aten.set_.source_Tensor) +def set__source_tensor(self, source_tensor): + self.realize() + source_tensor.realize() + return TensorBox.create(ir.SetSourceTensorKernel(self, source_tensor)) + + +if hasattr(torch.ops.fsdp, "copy_"): + + @register_lowering(torch.ops.fsdp.copy_.default) + def fsdp_copy_(dst, src): + if dst is src: + # dst.copy_(dst) can happen from the reinplacing pass + return dst + src = to_device(src, dst.get_device()) + src = to_dtype(src, dst.get_dtype()) + src = expand(src, dst.get_size()) + return mutate_to(dst, src) + + +@register_lowering(torch.ops.aten.resize) +def resize(x, size, *, memory_format=None): + assert isinstance(x, TensorBox) + assert isinstance(size, (list, tuple)) + + if memory_format is None: + memory_format = torch.contiguous_format + if memory_format == torch.preserve_format: + raise RuntimeError(f"unsupported memory format: {memory_format}") + + if memory_format == torch.channels_last: + assert len(size) == 4 + if memory_format == torch.channels_last_3d: + assert len(size) == 5 + + old_numel = x.get_numel() + dtype = x.get_dtype() + device = x.get_device_or_error() + + if isinstance(x.data, ir.BaseView): + x.data = x.data.unwrap_view() + + if ( + torch.are_deterministic_algorithms_enabled() + and torch.utils.deterministic.fill_uninitialized_memory # type: ignore[attr-defined] + ): + if is_float_dtype(dtype): + uninitialized_val = float("nan") + elif is_integer_dtype(dtype): + uninitialized_val = torch.iinfo(dtype).max + else: + uninitialized_val = True + else: + # using zero as that is what empty does + uninitialized_val = 0.0 + + if V.graph.sizevars.statically_known_equals(old_numel, 0): # type: ignore[arg-type] + return full(size, uninitialized_val, dtype=dtype, device=device) + + x_flat = as_strided( + x, + [ + old_numel, + ], + [ + 1, + ], + ) + flat_loader = x_flat.make_loader() + out_stride = ir.FlexibleLayout.stride_ordered_for_memory_format(size, memory_format) + out_indexer = ir.FixedLayout(device, dtype, size, out_stride).make_indexer() + + def inner_fn(idx): + flat_index = out_indexer(idx) + flat_index_expr = ops.index_expr(flat_index, torch.int64) + limit = ops.index_expr(old_numel, torch.int64) + mask = ops.lt(flat_index_expr, limit) + return ops.masked(mask, lambda: flat_loader([flat_index]), uninitialized_val) + + out = Pointwise.create( + device=device, dtype=dtype, inner_fn=inner_fn, ranges=list(size) + ) + return out + + +from torch._higher_order_ops.auto_functionalize import auto_functionalized + + +make_fallback(auto_functionalized) + + +@register_lowering(triton_kernel_wrapper_mutation) +def triton_kernel_wrap_( + *, + kernel_idx, + constant_args_idx, + grid, + tma_descriptor_metadata, + kwargs, +): + from torch._higher_order_ops.triton_kernel_wrap import kernel_side_table + + constant_args = kernel_side_table.get_constant_args(constant_args_idx) + ir.UserDefinedTritonKernel( + kernel_idx=kernel_idx, + grid=grid, + tma_descriptor_metadata=tma_descriptor_metadata, + kernel_args={**kwargs, **constant_args}, + ) + return {key: val for key, val in kwargs.items() if isinstance(val, TensorBox)} + + +@register_lowering(torch.ops.higher_order.cond, type_promotion_kind=None) +def cond( + pred, true_fn, false_fn, operands +) -> list[Union[ir.TensorBox, ir.ShapeAsConstantBuffer]]: + # TODO: when graph_partition is enabled, skip - partitioning handles control flow + # we run into memory cleanup issue + if any(isinstance(x, IRNode) and is_triton(x) for x in [pred, *operands]): + msg = "control flow operator: torch.cond." + if stack_trace := V.graph.current_node.meta.get("stack_trace", None): + msg = f"{msg} Found from : \n {stack_trace}" + V.graph.disable_cudagraphs_reason = msg + + result = ir.Conditional.create(pred, true_fn, false_fn, operands) + return list(map(TensorBox.create, result)) + + +@register_lowering(torch.ops.higher_order.while_loop, type_promotion_kind=None) +def while_loop(cond_fn, body_fn, carried_inputs, additional_inputs, stack_output=False): + # TODO: when graph_partition is enabled, skip - partitioning handles control flow + # we run into memory cleanup issue + if not config.graph_partition and any( + isinstance(x, IRNode) and is_triton(x) + for x in carried_inputs + additional_inputs + ): + msg = "control flow operator: torch.while_loop." + if stack_trace := V.graph.current_node.meta.get("stack_trace", None): + msg = f"{msg} Found from : \n {stack_trace}" + V.graph.disable_cudagraphs_reason = msg + + result = ir.WhileLoop.create( + cond_fn, body_fn, carried_inputs, additional_inputs, stack_output + ) + assert isinstance(result, Sequence) + return list(map(ir.WhileLoop._maybe_wrap_as_tensor_box, result)) + + +register_lowering( + torch.ops.higher_order.while_loop_stack_output, type_promotion_kind=None +)(functools.partial(while_loop, stack_output=True)) + + +@register_lowering(torch.ops.higher_order.invoke_subgraph, type_promotion_kind=None) +def invoke_subgraph(subgraph_fn: ir.Subgraph, identifier: str, *operands): + result = ir.InvokeSubgraph.create(subgraph_fn, *operands) + return list(map(TensorBox.create, result)) # type: ignore[call-overload] + + +def process_subgraph_nodes(graph_module: torch.fx.GraphModule, args: list[Any]): + """Process nodes from a FX graph by executing them through V.graph. + + This is a common pattern for executing a subgraph's nodes: + - Placeholder nodes are mapped to the provided args + - Output nodes return their result + - Other nodes are executed via V.graph.run_node + + """ + output = None + + for i, node in enumerate(graph_module.graph.nodes): + if node.op == "placeholder": + assert node not in V.graph.env + V.graph.env[node] = args[i] + continue + elif node.op == "output": + output_args, kwargs = V.graph.fetch_args_kwargs_from_env(node) + output = torch.fx.Interpreter.output(V.graph, node, output_args, kwargs) + else: + assert node not in V.graph.env + V.graph.env[node] = V.graph.run_node(node) + + if output is None: + raise RuntimeError("No output node found in graph") + + return output + + +# Import the control_deps_op HOP for lowering +from torch._inductor.fx_passes.control_dependencies import control_deps + + +@register_lowering(control_deps, type_promotion_kind=None) +def control_deps_op_lowering(additional_deps, subgraph_fn, *args): + """ + Lower control_deps_op by ensuring dependencies are realized and tracking them. + + The control_deps_op HOP makes dependencies explicit in the graph. During lowering: + 1. Realize all additional dependencies to ensure they're computed + 2. Execute the target operation normally + 3. Track the dependencies for the scheduler + """ + # Realize all additional dependencies + dep_names = [] + for dep in additional_deps: + if not isinstance(dep, IRNode): + continue + + dep.realize() + dep_names.append(dep.get_name()) + + original_args = V.graph.current_node.args + arg_offset = 2 # first two args (additional_deps, subgraph) + assert len(args) + arg_offset == len(original_args) + + operation_len = len(V.graph.operations) + assert len(subgraph_fn.graph_module.graph.find_nodes(op="placeholder")) == len(args) + + # Process subgraph nodes using the shared helper + output = process_subgraph_nodes(subgraph_fn.graph_module, list(args)) + + assert output is not None and additional_deps + + # some operators, like wait_tensor, just return their input, + # so its more robust to add dep to the operation itself, + # otherwise you can have a cycle of + # a = coll + # b = control_deps(a, mm, ...) + # c = control_deps(b, wait, ...) + # if c == a, then you have a cycle. + for op in V.graph.operations[operation_len:]: + for dep_name in dep_names: + op_name = op.operation_name + assert op_name is not None + V.graph.additional_buffer_deps[op_name].add(dep_name) + + return output + + +@register_lowering(torch._higher_order_ops.invoke_quant, type_promotion_kind=None) +def invoke_quant_tracer(subgraph_fn: ir.Subgraph, *operands, scheme=None): + output = None + quant_options = V.graph.current_node.meta.get("quant_options", None) + assert quant_options is not None + + for i, node in enumerate(subgraph_fn.graph_module.graph.nodes): + if node.op == "placeholder": + V.graph.env[node] = operands[i] + continue + # todo getattr + elif node.op == "output": + args, kwargs = V.graph.fetch_args_kwargs_from_env(node) + + for v in itertools.chain(args, kwargs.values()): + v.realize() + + if quant_options.codegen_low_precision: + V.graph.low_precision_codegen_ops.add(v.get_operation_name()) + + V.graph.invoke_quant_ops.add(v.get_operation_name()) + + output = torch.fx.Interpreter.output(V.graph, node, args, kwargs) + else: + V.graph.env[node] = V.graph.run_node(node) + + return output + + +@register_lowering(associative_scan_op, type_promotion_kind=None) +def associative_scan( + combine_fn: ir.Subgraph, xs, additional_inputs: tuple[torch.Tensor] +): + from .subgraph_lowering import InputDescriptor, lower_pointwise_subgraph + + if len(additional_inputs) > 0: + raise RuntimeError( + "Unable to generate code for associative_scan op, because there are lifted arguments" + ) + + subgraph_inputs = [ + InputDescriptor(dtype=x.get_dtype(), device=x.get_device()) + for x in itertools.chain(xs, xs) + ] + lowered_combine_fn = lower_pointwise_subgraph(combine_fn, subgraph_inputs) # type: ignore[var-annotated] + + def wrapped_combine_fn(lhs, rhs): + return lowered_combine_fn( + *pytree.tree_leaves(lhs), + *pytree.tree_leaves(rhs), + ) + + kwargs = _make_scan_inner(xs[0], axis=0, dtype=None) + kwargs["dtypes"] = tuple(x.get_dtype() for x in xs) + kwargs["inner_fns"] = tuple(x.make_loader() for x in xs) + result = ir.Scan.create( + combine_fn=wrapped_combine_fn, + can_fallback_to_aten=False, + **kwargs, + ) + if result[0] is None: + raise RuntimeError("Unable to generate code for associative_scan op") + return result + + +@register_lowering(torch.ops.prims._sink_tokens.default) +def _sink_tokens(tokens): + return None + + +@register_lowering(torch.ops.prims._make_token.default) +def _make_token(): + return None + + +@register_lowering(torch.ops.higher_order.with_effects, type_promotion_kind=None) +def with_effects(token, op, *args, **kwargs): + """ + We lower the operator directly, and then we add StarDep dependencies to all + the newly created nodes in the graph. + """ + from torch._higher_order_ops.effects import _get_effect, _get_schema + + # Get effect type + effect_type = _get_effect(op) + if effect_type is None and op is torch.ops.higher_order.invoke_subgraph: + from torch._guards import InvokeSubgraphCache, TracingContext + + tracing_ctx = TracingContext.try_get() + if tracing_ctx: + invoke_subgraph_cache = tracing_ctx.hop_dispatch_set_cache.get_cache( + torch.ops.higher_order.invoke_subgraph + ) + if invoke_subgraph_cache: + assert isinstance(invoke_subgraph_cache, InvokeSubgraphCache) + # args[1] is identifier + effects = invoke_subgraph_cache.get_effects(args[1]) + if effects: + assert len(effects) == 1, "Multiple effects NYI" + effect_type = next(iter(effects)) + + # Track operations before + operation_len = len(V.graph.operations) + + # Lower the op + if op in lowerings: + result = lowerings[op](*args, **kwargs) + # Realize so that we can get the ops to show up in V.graph.operations + pytree.tree_map_only(TensorBox, lambda a: a.realize(), result) + else: + + def wrap_tensors(x): + return TensorBox.create(x) if isinstance(x, ir.IRNode) else x + + result = pytree.tree_map( + wrap_tensors, ir.FallbackKernel.create(op, *args, **kwargs) + ) + + # Get all the operations created during the lowering above, and add StarDeps + # to the previous node with the same effect + assert len(V.graph.operations[operation_len:]) > 0, ( + f"No operation nodes were generated when lowering effectful operator {op}." + ) + if effect_type: + prev_effect_buffer = V.graph.effectful_ops.get(effect_type) + for new_op in V.graph.operations[operation_len:]: + # Patch has_side_effects to return True + new_op.has_side_effects = lambda: True # pyrefly: ignore[missing-attribute] + if prev_effect_buffer: + op_name = new_op.get_name() # pyrefly: ignore[missing-attribute] + V.graph.additional_star_deps[op_name].add(prev_effect_buffer.get_name()) + # Update the effectful ops chain to point to the latest operation + V.graph.effectful_ops[effect_type] = ( # pyrefly: ignore[missing-attribute] + new_op # pyrefly: ignore[unsupported-operation] + ) + + try: + args, kwargs = pytree.tree_map_only( + ir.TorchBindObject, lambda a: a.get_value(), (args, kwargs) + ) + schema = _get_schema(op, args, kwargs) + except RuntimeError as e: + error_msg = str(e) + log.warning( + "Failed to get schema for %s: %s. Assuming list output", op, error_msg + ) + return (token, *result) + + if len(schema.returns) == 0: + return (token, result) + elif len(schema.returns) == 1: + return (token, result) + else: + return (token, *result) + + +from .comm_lowering import register_comm_lowerings + + +register_comm_lowerings() + + +@register_lowering(inductor_prims.prepare_softmax_online, type_promotion_kind=None) +def prepare_softmax_online(x, dim): + """ + Lowering inductor_prims.prepare_softmax_online to compute max/sum in one pass if no split is needed. + """ + kwargs = _make_reduction_inner( + x, axis=dim, keepdims=True, dtype=None, override_return_dtype=None + ) + + reduction_ranges = kwargs["reduction_ranges"] + rnumel = V.graph.sizevars.simplify(sympy_product(reduction_ranges)) + hint, num_split = ir.Reduction.num_splits( + **kwargs, + reduction_type="online_softmax_reduce", # type: ignore[arg-type] + reduction_numel=rnumel, + ) + + if num_split == 1 and V.graph.sizevars.statically_known_geq( + rnumel, config.unroll_reductions_threshold + ): + max_tensor, sum_tensor = OnlineSoftmaxReduction.create( + input_node=x, num_output=2, reduction_hint=hint, **kwargs + ) + return max_tensor, sum_tensor + else: + # Note: [Split online_softmax_reduce] + # We don't split reduction for online_softmax_reduce for now. + # On one hand, supporting split reduction makes things complex since + # the split out reuctions requires 2 inputs rather than one. + # On the other hand, during training the online_softmax_reduce should + # usually don't requires a split due to large batch size + # (more specifically batch size times sequence length). + # We should support split reduction if we find legit use cases to + # motivate the work. + # + # TODO: does inference need split online_softmax_reduce? + + warnings.warn( + textwrap.dedent( + """ + Online softmax is disabled on the fly since Inductor decides to + split the reduction. Cut an issue to PyTorch if this is an + important use case and you want to speed it up with online + softmax. + """ + ) + ) + amax = reduce_amax(x, dim, keepdims=True) + exp = lowerings[aten.exp](sub(x, amax)) + xsum = sum_(exp, dim, keepdims=True) + return amax, xsum + + +# populate lowerings defined in kernel/* +from . import kernel + + +import_submodule(kernel) + +from . import quantized_lowerings + + +quantized_lowerings.register_quantized_ops() +quantized_lowerings.register_woq_mm_ops() + +from . import mkldnn_lowerings + + +mkldnn_lowerings.register_onednn_fusion_ops() + +from . import jagged_lowerings + + +jagged_lowerings.register_jagged_ops() + + +@contextlib.contextmanager +def force_fallback(op: torch._ops.OpOverload): + """ + A context manager to force fallback an op. Used in unit test + for FallbackKernel. + """ + assert isinstance(op, torch._ops.OpOverload), ( + "Only OpOverload to make the clean up easier" + ) + old_handler = lowerings.get(op) + try: + register_lowering(op)(fallback_handler(op)) + yield + finally: + if old_handler: + lowerings[op] = old_handler + else: + lowerings.pop(op) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/memory.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/memory.py new file mode 100644 index 0000000000000000000000000000000000000000..4f587b23cda0c8f5993384d2b4b9a1f8521c7c6a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/memory.py @@ -0,0 +1,1108 @@ +from __future__ import annotations + +import collections +import dataclasses +import heapq +import logging +from typing import Optional, TYPE_CHECKING, TypedDict, Union + +import torch +from torch._environment import is_fbcode +from torch._utils_internal import signpost_event +from torch.utils._ordered_set import OrderedSet + +from . import config +from .ir import MultiOutputLayout, NoneLayout +from .utils import get_dtype_size, is_nonfreeable_buffers +from .virtualized import V + + +if TYPE_CHECKING: + from collections.abc import Callable + + from .dependencies import Dep + from .scheduler import BaseSchedulerNode, SchedulerBuffer + +from .dependencies import WeakDep + + +torch_log = logging.getLogger(__name__) + + +@dataclasses.dataclass +class PeakMemoryResult: + order: list[BaseSchedulerNode] + peak_memory: int + method: str + + +@dataclasses.dataclass +class MemoryPlanningInfoForBuffer: + size_alloc: int = 0 + size_free: int = 0 + # succ_nodes used for buffer lifetime/freeing (excludes is_fake WeakDeps) + succ_nodes: OrderedSet[BaseSchedulerNode] = dataclasses.field( + default_factory=OrderedSet + ) + # succ_nodes used for node ordering (includes is_fake WeakDeps) + succ_nodes_for_ordering: OrderedSet[BaseSchedulerNode] = dataclasses.field( + default_factory=OrderedSet + ) + + def __post_init__(self) -> None: + torch._check( + len(self.succ_nodes) <= len(self.succ_nodes_for_ordering), + lambda: f"succ_nodes must be a subset of succ_nodes_for_ordering. " + f"len(succ_nodes)={len(self.succ_nodes)}, len(succ_nodes_for_ordering)={len(self.succ_nodes_for_ordering)}", + ) + + +@dataclasses.dataclass +class MemoryPlanningInfoForNode: + index: int = 0 + size: int = 0 + pred_buffers: OrderedSet[Union[SchedulerBuffer, FreeableInputBuffer]] = ( + dataclasses.field(default_factory=OrderedSet) + ) + pred_nodes: OrderedSet[BaseSchedulerNode] = dataclasses.field( + default_factory=OrderedSet + ) + succ_nodes: OrderedSet[BaseSchedulerNode] = dataclasses.field( + default_factory=OrderedSet + ) + + +@dataclasses.dataclass +class FreeableInputBuffer: + name: str + mpi_buffer: MemoryPlanningInfoForBuffer = dataclasses.field( + default_factory=MemoryPlanningInfoForBuffer + ) + + def get_name(self) -> str: + return self.name + + def __hash__(self) -> int: + return hash(self.name) + + +def get_freeable_input_buf( + nodes: list[BaseSchedulerNode], + graph_inputs: OrderedSet[str], +) -> dict[str, FreeableInputBuffer]: + """ + Create and keep track of all input buffers that can be freed during the program + + Returns: + A dictionary containing all freeable input buffers, keyed by their names. + """ + + def _dep_size_hint(dep: Dep) -> int: + return V.graph.get_dep_size_hint(dep) + + # get freeable input buffers' successor nodes for memory lifetime (excludes is_fake WeakDeps) + # and for ordering (includes all deps) + dep_name_to_succ_nodes: dict[str, OrderedSet[BaseSchedulerNode]] = ( + collections.defaultdict(OrderedSet) + ) + dep_name_to_succ_nodes_for_ordering: dict[str, OrderedSet[BaseSchedulerNode]] = ( + collections.defaultdict(OrderedSet) + ) + dep_name_to_size: dict[str, int] = dict() + + for node in nodes: + for dep in node.read_writes.reads: + if dep.name in graph_inputs: + if not is_nonfreeable_buffers(dep): + # All deps contribute to ordering, but fake weak deps do not contribute to + # memory liveness + dep_name_to_succ_nodes_for_ordering[dep.name].add(node) + dep_name_to_size[dep.name] = _dep_size_hint(dep) + if not (isinstance(dep, WeakDep) and dep.is_fake): + dep_name_to_succ_nodes[dep.name].add(node) + + # create FreeableInputBuffer objects and add them to the returned dictionary + name_to_freeable_input_buf: dict[str, FreeableInputBuffer] = dict() + for dep_name in dep_name_to_succ_nodes_for_ordering: + name_to_freeable_input_buf[dep_name] = FreeableInputBuffer( + dep_name, + MemoryPlanningInfoForBuffer( + size_free=dep_name_to_size[dep_name], + succ_nodes=dep_name_to_succ_nodes[dep_name], + succ_nodes_for_ordering=dep_name_to_succ_nodes_for_ordering[dep_name], + ), + ) + return name_to_freeable_input_buf + + +def compute_size_for_scheduler_buffer( + name_to_buf: dict[str, SchedulerBuffer], +) -> dict[str, tuple[int, int]]: + """ + Compute the size of each scheduler buffer, including (1) memory allocated when + it is created and (2) memory deallocated when it is freed. + + We specially handle the case of MultiOutputLayout. + Consider the following case: + buf0 = some_ops_with_multi_outputs(...) + buf1 = buf0[0] # assume 10 bytes + buf2 = buf0[1] # assume 20 bytes + In such cases, + buf0: at creation, 30 bytes allocated, when deleted, 0 bytes freed + buf1: at creation, 0 bytes allocated, when deleted, 10 bytes freed + buf2: at creation, 0 bytes allocated, when deleted, 20 bytes freed + + When an operation mutates a buffer in-place, the scheduler creates a new buffer name + to track the "before" and "after" states, even though they share the same memory. + + The mutated buffer represents a rename with zero allocation and deallocation cost. + During dependency tracking, we transfer dependencies from the mutated name back to + the original buffer, ensuring the original memory is only freed when all aliases + are done. + + This handles cases where a buffer has multiple non-overlapping aliases - rather than + trying to assign free costs to individual aliases, we forward all alias dependencies + to the original buffer. + + Consider: + buf0 = op0() + buf1 = mutation_op_(buf0) + del buf0 + ... + op(buf1) + del buf1 + + The only memory events are the creation prior to op0, and the deletion following buf1. + + Returns: + A dictionary mapping a scheduler buffer to a tuple of (size_alloc, size_free). + """ + from .ir import MultiOutput + from .scheduler import OutputNode + + sched_buf_to_size: dict[str, tuple[int, int]] = dict() + + def _compute_and_update_buf_size( + sched_buf: SchedulerBuffer, user_of_MultiOutputLayout: bool = False + ) -> int: + if sched_buf.get_name() in V.graph.scheduler.mutation_real_name: + sched_buf_to_size[sched_buf.get_name()] = (0, 0) + return 0 + elif isinstance(sched_buf.node.layout, NoneLayout): + sched_buf_to_size[sched_buf.get_name()] = (0, 0) + return 0 + elif isinstance(sched_buf.node.layout, MultiOutputLayout): + size_alloc = 0 + for user in sched_buf.users: + if isinstance(user.node, OutputNode): + continue + for buf in user.node.get_outputs(): + if isinstance(buf.node, MultiOutput): + size_alloc += _compute_and_update_buf_size(buf, True) + sched_buf_to_size[sched_buf.get_name()] = ( + 0 if user_of_MultiOutputLayout else size_alloc, + 0, + ) + return size_alloc + else: + buf_size = V.graph.sizevars.size_hint( + sched_buf.node.get_numel(), fallback=0 + ) * get_dtype_size(sched_buf.node.get_dtype()) + sched_buf_to_size[sched_buf.get_name()] = ( + 0 if user_of_MultiOutputLayout else buf_size, + buf_size, + ) + return buf_size + + for sched_buf in name_to_buf.values(): + # skip if sched_buf is already processed as an user of another SchedulerBuffer + # whose layout is of the type MultiOutputLayout + if sched_buf.get_name() not in sched_buf_to_size: + _compute_and_update_buf_size(sched_buf) + + return sched_buf_to_size + + +def assign_memory_planning_info_for_scheduler_buffers( + nodes: list[BaseSchedulerNode], + name_to_buf: dict[str, SchedulerBuffer], +) -> None: + """ + For each SchedulerBuffer, assign its size info and successor nodes. + A buffer's successor nodes determines when a buffer can be freed. + """ + # get buffer sizes + sched_buf_to_size = compute_size_for_scheduler_buffer(name_to_buf) + + # get buffer's successor nodes for memory lifetime (excludes is_fake WeakDeps) + # and for ordering (includes all deps) + dep_name_to_succ_nodes: dict[str, OrderedSet[BaseSchedulerNode]] = ( + collections.defaultdict(OrderedSet) + ) + dep_name_to_succ_nodes_for_ordering: dict[str, OrderedSet[BaseSchedulerNode]] = ( + collections.defaultdict(OrderedSet) + ) + for node in nodes: + for dep in node.unmet_dependencies: + # All deps contribute to ordering, but fake weak deps do not contribute to + # memory liveness + dep_name_to_succ_nodes_for_ordering[dep.name].add(node) + if not (isinstance(dep, WeakDep) and dep.is_fake): + dep_name_to_succ_nodes[dep.name].add(node) + + # iterate in reverse, so dependencies are picked up transitively. + for mutating_buf_name, real_buf_name in reversed( + V.graph.scheduler.mutation_real_name.items() + ): + dep_name_to_succ_nodes[real_buf_name] |= dep_name_to_succ_nodes[ + mutating_buf_name + ] + dep_name_to_succ_nodes_for_ordering[real_buf_name] |= ( + dep_name_to_succ_nodes_for_ordering[mutating_buf_name] + ) + + # populate the MemoryPlanningInfoForBuffer attribute to each scheduler buffer + # note: there are scheduler buffers not in dep_name_to_succ_nodes (e.g., graph outputs) + for buf_name in name_to_buf: + name_to_buf[buf_name].mpi_buffer = MemoryPlanningInfoForBuffer( + size_alloc=sched_buf_to_size[buf_name][0], + size_free=sched_buf_to_size[buf_name][1], + succ_nodes=dep_name_to_succ_nodes[buf_name], + succ_nodes_for_ordering=dep_name_to_succ_nodes_for_ordering[buf_name], + ) + + +def assign_memory_planning_info_for_scheduler_nodes( + nodes: list[BaseSchedulerNode], + name_to_fused_node: dict[str, BaseSchedulerNode], + name_to_buf: dict[str, SchedulerBuffer], + name_to_freeable_input_buf: dict[str, FreeableInputBuffer], +) -> None: + """ + Assign to each scheduler node its predecessor and successor nodes. + """ + + node_to_pred_nodes: dict[BaseSchedulerNode, OrderedSet[BaseSchedulerNode]] = ( + collections.defaultdict(OrderedSet) + ) + node_to_succ_nodes: dict[BaseSchedulerNode, OrderedSet[BaseSchedulerNode]] = {} + node_to_pred_buffers: dict[ + BaseSchedulerNode, OrderedSet[SchedulerBuffer | FreeableInputBuffer] + ] = collections.defaultdict(OrderedSet) + + # collect all predecessors using existing successor mappings + for node in nodes: + succ_nodes = OrderedSet( + succ_node + for buffer in node.get_outputs() + for succ_node in buffer.mpi_buffer.succ_nodes_for_ordering + ) + node_to_succ_nodes[node] = succ_nodes + + # For each successor, add current node as its predecessor + for succ_node in succ_nodes: + node_to_pred_nodes[succ_node].add(node) + + # For each output buffer, add it as predecessor to its successor nodes + # Use succ_nodes (not succ_nodes_for_ordering) since pred_buffers is used + # for memory lifetime tracking, not ordering + for buffer in node.get_outputs(): + for succ_node in buffer.mpi_buffer.succ_nodes: + node_to_pred_buffers[succ_node].add(buffer) + + for freeable_buffer in name_to_freeable_input_buf.values(): + for succ_node in freeable_buffer.mpi_buffer.succ_nodes: + node_to_pred_buffers[succ_node].add(freeable_buffer) + + # Second pass: assign memory planning info using completed predecessor mappings + for index, node in enumerate(nodes): + size_alloc = sum(buffer.mpi_buffer.size_alloc for buffer in node.get_outputs()) + succ_nodes = node_to_succ_nodes[node] + pred_nodes = node_to_pred_nodes[node] + + # make sure we do not make node a successor or predecessor of itself + succ_nodes.discard(node) + pred_nodes.discard(node) + + node.mpi_node = MemoryPlanningInfoForNode( + index=index, + size=size_alloc, + pred_buffers=node_to_pred_buffers[node], + pred_nodes=node_to_pred_nodes[node], + succ_nodes=succ_nodes, + ) + + +# map each scheduler buffer to its size, start step, and end step +@dataclasses.dataclass +class BufferInfo: + buffer: Union[SchedulerBuffer, FreeableInputBuffer] + size_alloc: int + size_free: int + start_step: int + end_step: int + + +def compute_memory_timeline( + nodes: list[BaseSchedulerNode], + name_to_freeable_input_buf: dict[str, FreeableInputBuffer], + graph_outputs: OrderedSet[str], +) -> tuple[ + list[BufferInfo], + dict[BaseSchedulerNode, int], + dict[Union[FreeableInputBuffer, SchedulerBuffer], BaseSchedulerNode], +]: + """ + Compute buffer allocation and deallocation sizes and map their + lifetime to the node schedule + """ + + # get the execution step of each node, this will be used to determine + # the end_step of buffers + node_to_step: dict[BaseSchedulerNode, int] = { + node: step for step, node in enumerate(nodes) + } + + # get buffers' size and liveliness information + buf_info_list: list[BufferInfo] = [] + buf_to_snode_last_use: dict[ + Union[FreeableInputBuffer, SchedulerBuffer], BaseSchedulerNode + ] = {} + + def _get_end_step_and_snode( + buf: Union[FreeableInputBuffer, SchedulerBuffer], + ) -> tuple[int, Optional[BaseSchedulerNode]]: + max_step: int = -1 + max_step_snode: Optional[BaseSchedulerNode] = None + succ_nodes = buf.mpi_buffer.succ_nodes + if succ_nodes: + for succ_node in succ_nodes: + step = node_to_step[succ_node] + if step > max_step: + max_step = step + max_step_snode = succ_node + assert max_step_snode is not None + return max_step, max_step_snode + + # 1. for freeable input buffers + for buf_name, input_buf in name_to_freeable_input_buf.items(): + end_step = -1 + if buf_name not in graph_outputs: + end_step, end_step_snode = _get_end_step_and_snode(input_buf) + assert end_step_snode is not None + buf_to_snode_last_use[input_buf] = end_step_snode + + buf_info_list.append( + BufferInfo( + input_buf, + input_buf.mpi_buffer.size_free, + input_buf.mpi_buffer.size_free, + 0, + end_step, + ) + ) + + # 2. for scheduler buffers + for step, node in enumerate(nodes): + for sched_buf in node.get_outputs(): + # note: it is possible for a non-graph-output sched_buf to have no succ_nodes and + # to be only used by its defining op (e.g., due to fusion when all consumers of + # the buffer are fused with its defining op). In such cases, end_step is step. + buf_name = sched_buf.get_name() + end_step = -1 + if buf_name not in graph_outputs: + end_step, end_step_snode = _get_end_step_and_snode(sched_buf) + if end_step == -1: + end_step = step + buf_to_snode_last_use[sched_buf] = node + else: + assert end_step_snode is not None + buf_to_snode_last_use[sched_buf] = end_step_snode + + buf_info_list.append( + BufferInfo( + sched_buf, + sched_buf.mpi_buffer.size_alloc, + sched_buf.mpi_buffer.size_free, + step, + end_step, + ) + ) + + return buf_info_list, node_to_step, buf_to_snode_last_use + + +def estimate_peak_memory( + nodes: list[BaseSchedulerNode], + name_to_freeable_input_buf: dict[str, FreeableInputBuffer], + graph_outputs: OrderedSet[str], +) -> tuple[int, list[int]]: + """ + Given a list of nodes in their execution order, estimate the peak memory, by + keeping track of the liveliness of SchedulerBuffers and FreeableInputBuffers. + + Returns: + int: peak memory + List[int]: memory usage at each node (or each step). + """ + + buf_info_list, _, _ = compute_memory_timeline( + nodes, name_to_freeable_input_buf, graph_outputs + ) + + # incremental memory changes at each step + memory = [0 for _ in range(len(nodes) + 1)] + + # for each buffer, update memory when created and when freed + for buf_info in buf_info_list: + memory[buf_info.start_step] += buf_info.size_alloc + memory[buf_info.end_step + 1] -= buf_info.size_free + + # get peak memory by compute the cumulative memories + max_memory = 0 + cur_memory = 0 + memories_at_nodes = [] + for t in range(len(nodes) + 1): + cur_memory += memory[t] + memories_at_nodes.append(cur_memory) + max_memory = max(max_memory, cur_memory) + + return (max_memory, memories_at_nodes) + + +@dataclasses.dataclass +class SNodeMemory: + size_alloc: int + size_free: int + + +def estimate_peak_memory_allocfree( + nodes: list[BaseSchedulerNode], + name_to_freeable_input_buf: dict[str, FreeableInputBuffer], + graph_outputs: OrderedSet[str], +) -> tuple[ + int, + list[tuple[int, int]], + dict[BaseSchedulerNode, SNodeMemory], + dict[Union[FreeableInputBuffer, SchedulerBuffer], BaseSchedulerNode], +]: + """ + Alternative version of estimate_peak_memory, that respects the fact, + that every SchedulerNode has multiple phases: + 1. alloc ( outputs ) + 2. run_kernel + 3. dealloc last_use buffers + estimate_peak_memory collapses memory into one value: size_alloc - size_free + While peak memory happens after alloc. + + Duplicating the code to not migrate all callsites at once, + In future usages of estimate_peak_memory will migrate to this version. + """ + + buf_info_list, _, buf_to_snode_last_use = compute_memory_timeline( + nodes, name_to_freeable_input_buf, graph_outputs + ) + + # incremental memory changes at each step + step_idx_allocfree = [SNodeMemory(0, 0) for _ in range(len(nodes))] + + # for each buffer, update memory when created and when freed + for buf_info in buf_info_list: + step_idx_allocfree[buf_info.start_step].size_alloc += buf_info.size_alloc + if buf_info.end_step != -1: + step_idx_allocfree[buf_info.end_step].size_free += buf_info.size_free + + snodes_allocfree = {} + for i, node in enumerate(nodes): + snodes_allocfree[node] = step_idx_allocfree[i] + + max_memory = 0 + cur_memory = 0 + snodes_curr_memory = [] + for t in range(len(nodes)): + alloc = step_idx_allocfree[t].size_alloc + free = step_idx_allocfree[t].size_free + cur_memory += alloc + post_alloc = cur_memory + max_memory = max(max_memory, cur_memory) + cur_memory -= free + post_free = cur_memory + snodes_curr_memory.append((post_alloc, post_free)) + + return ( + max_memory, + snodes_curr_memory, + snodes_allocfree, + buf_to_snode_last_use, + ) + + +def topological_sort_lpmf( + nodes: list[BaseSchedulerNode], + name_to_freeable_input_buf: dict[str, FreeableInputBuffer], + name_to_buf: dict[str, SchedulerBuffer], + graph_outputs: OrderedSet[str], +) -> list[BaseSchedulerNode]: + """ + A bfs-based greedy topological order. LPMF stands for "Least Peak Memory First". + + The idea is from this paper: + Buffer memory optimization for video codec application modeled in Simulink + https://www.cs.york.ac.uk/rts/docs/DAC-1964-2006/PAPERS/2006/DAC06/PDFFILES/P0689.PDF + + The algorithm maintains the max memory so far. + At every iteration, for each scheduleable node, it computes: + - how much memory needs to be allocated for the output buffers of this node; + - how much memory can be freed as a result of executing this node. + This gives us two values for each node: + (1) mem1: memory during the execution of the node; + (2) mem2: memory after executing the node, after some input buffers are freed. + The greedy approach select as follows: + (i) if there are nodes whose mem1 values are below the max memory so far, + then pick the node with the lowest mem2 value; + (ii) otherwise, pick the one with the lowest mem1 value. + """ + + class NodeInfo(TypedDict): + indegree: int + memory_to_free: int + + class BufferInfo(TypedDict): + outdegree: int + + node_info: dict[BaseSchedulerNode, NodeInfo] = dict() + buf_info: dict[Union[SchedulerBuffer, FreeableInputBuffer], BufferInfo] = dict() + + # compute nodes' number of unmet dependencies (for schedulability) + # initialize the list of nodes ready to be scheduled + nodes_to_schedule: OrderedSet[BaseSchedulerNode] = OrderedSet() + for node in nodes: + node_info[node] = { + "indegree": len(node.mpi_node.pred_nodes), + "memory_to_free": 0, + } + if node_info[node]["indegree"] == 0: + nodes_to_schedule.add(node) + + # compute buffers' number of unmet successors (used to decide when to free) + for buf in list(name_to_buf.values()) + list(name_to_freeable_input_buf.values()): + buf_info[buf] = { + "outdegree": len(buf.mpi_buffer.succ_nodes) + + (1 if buf.get_name() in graph_outputs else 0) + } + + # initialize memory estimations + live_memory = sum( + input_buf.mpi_buffer.size_free + for input_buf in name_to_freeable_input_buf.values() + ) + + # this is the total output memory, which is a lower bound for peak memory + # we do not include the memory of non freeable input buffers + output_memory = 0 + for buf_name in graph_outputs: + if buf_name in name_to_buf: + output_memory += name_to_buf[buf_name].mpi_buffer.size_free + elif buf_name in name_to_freeable_input_buf: + output_memory += name_to_freeable_input_buf[buf_name].mpi_buffer.size_free + max_memory = max(live_memory, output_memory) + memory_gap = max_memory - live_memory + + # compute the amount of memory that is allocated when a node is scheduled + # and the amount of memory that can be freed when a node is scheduled + for node in nodes: + # 1. if a buffer read by this node is last used by this node + for buf in node.mpi_node.pred_buffers: + if buf_info[buf]["outdegree"] == 1: + node_info[node]["memory_to_free"] += buf.mpi_buffer.size_free + # 2. if a buffer written by this node is used internally and not used later + for buf in node.get_outputs(): + if buf_info[buf]["outdegree"] == 0: + node_info[node]["memory_to_free"] += buf.mpi_buffer.size_free + + # schedule nodes one at a time + schedule: list[BaseSchedulerNode] = [] + size_threshold = config.size_threshold_for_succ_based_strategy + num_iters: int = 0 + while num_iters < len(nodes) and nodes_to_schedule: + # select a node to schedule: + if ( + size_threshold > 0 + and min(node.mpi_node.size for node in nodes_to_schedule) > size_threshold + ): + selected_node = min( + nodes_to_schedule, + key=lambda node: min( + ( + succ_node.mpi_node.index + for succ_node in node.mpi_node.succ_nodes + ), + default=len(nodes), + ), + ) + else: + selected_node = min( + nodes_to_schedule, + key=lambda node: ( + node.mpi_node.size if node.mpi_node.size > memory_gap else 0, + node.mpi_node.size - node_info[node]["memory_to_free"], + node.mpi_node.index, + ), + ) + nodes_to_schedule.remove(selected_node) + schedule.append(selected_node) + num_iters += 1 + + # update memory usage + live_memory += selected_node.mpi_node.size + max_memory = max(max_memory, live_memory) + live_memory -= node_info[selected_node]["memory_to_free"] + memory_gap = max_memory - live_memory + + # update successor nodes and nodes_to_schedule + for succ_node in selected_node.mpi_node.succ_nodes: + assert node_info[succ_node]["indegree"] > 0 + node_info[succ_node]["indegree"] -= 1 + if node_info[succ_node]["indegree"] == 0: + nodes_to_schedule.add(succ_node) + + # update predecessor nodes + for buf in selected_node.mpi_node.pred_buffers: + assert buf_info[buf]["outdegree"] > 0 + buf_info[buf]["outdegree"] -= 1 + if buf_info[buf]["outdegree"] == 1: + for succ_node in buf.mpi_buffer.succ_nodes: + node_info[succ_node]["memory_to_free"] += buf.mpi_buffer.size_free + + if num_iters > len(nodes): + raise RuntimeError("Failed to schedule, while loop ran too long for lpmf") + + return schedule + + +def topological_sort_bfs(nodes: list[BaseSchedulerNode]) -> list[BaseSchedulerNode]: + """ + A BFS topological sort that selects nodes whose dependencies are executed the + earliest. This follows a FIFO idea. Specifically, at every iteration, for each node + that is schedulable, we gather the order in which its predecessor nodes are executed, + and this sorted list of execution orders of predecessor nodes defines the priority. + We select the node whose predecessors nodes are executed the earliest. The FIFO + idea aims to reduce the liveness duration of buffers created. + """ + + class NodeInfo(TypedDict): + indegree: int + order: int + + node_info: dict[BaseSchedulerNode, NodeInfo] = dict() + + @dataclasses.dataclass + class NodeWithPriority: + priority: list[int] + node: BaseSchedulerNode + + def __lt__(self, other: NodeWithPriority) -> bool: + if self.priority == other.priority: + return self.node.mpi_node.index < other.node.mpi_node.index + return self.priority < other.priority + + def _node_priority(node: BaseSchedulerNode) -> list[int]: + # priority is the order in which predecessor nodes are executed + assert node_info[node]["indegree"] == 0 + exec_orders = sorted( + OrderedSet( + node_info[pred_node]["order"] for pred_node in node.mpi_node.pred_nodes + ) + ) + return exec_orders + + # compute nodes' number of unmet dependencies (for schedulability) + # initialize the list of nodes ready to be scheduled + nodes_to_schedule: list[NodeWithPriority] = [] + for node in nodes: + node_info[node] = {"indegree": len(node.mpi_node.pred_nodes), "order": -1} + if node_info[node]["indegree"] == 0: + heapq.heappush( + nodes_to_schedule, NodeWithPriority(_node_priority(node), node) + ) + + # schedule nodes one at a time + schedule: list[BaseSchedulerNode] = [] + num_iters: int = 0 + while num_iters < len(nodes) and nodes_to_schedule: + # select a node to schedule + selected_node = heapq.heappop(nodes_to_schedule).node + node_info[selected_node]["order"] = len(schedule) + schedule.append(selected_node) + num_iters += 1 + + # update successor nodes and nodes_to_schedule + for succ_node in selected_node.mpi_node.succ_nodes: + assert node_info[succ_node]["indegree"] > 0 + node_info[succ_node]["indegree"] -= 1 + if node_info[succ_node]["indegree"] == 0: + heapq.heappush( + nodes_to_schedule, + NodeWithPriority(_node_priority(succ_node), succ_node), + ) + + if num_iters > len(nodes): + raise RuntimeError("Failed to schedule, while loop ran too long for bfs") + + return schedule + + +def topological_sort_dfs(nodes: list[BaseSchedulerNode]) -> list[BaseSchedulerNode]: + """ + This is a DFS topological sort. The setup is similar to `topological_sort_schedule` + in scheduler.py. The difference is the order nodes are visited in the outer loop. + In `topological_sort_schedule`, nodes are visited in their original order. + In this function, nodes are visited based on their priority -- for each node, we + compute the total memory of all buffers it reads from or writes to, and we visit + the nodes in ascending order of this priority. + """ + seen: OrderedSet[BaseSchedulerNode] = OrderedSet() + name_to_node: dict[str, BaseSchedulerNode] = dict() + result: list[BaseSchedulerNode] = [] + size_with_reads: dict[BaseSchedulerNode, int] = dict() + + def visit(n: BaseSchedulerNode) -> None: + if n not in seen: + seen.add(n) + dep_nodes = [ + name_to_node[dep.name] + for dep in n.unmet_dependencies + if dep.name in name_to_node + ] + for node in sorted( + dep_nodes, key=lambda n: (size_with_reads[n], n.mpi_node.index) + ): + visit(node) + result.append(n) + + for node in nodes: + for name in node.get_buffer_names(): + name_to_node[name] = node + + for node in nodes: + size_with_reads[node] = node.mpi_node.size + sum( + pred_buf.mpi_buffer.size_free for pred_buf in node.mpi_node.pred_buffers + ) + for node in sorted(nodes, key=lambda n: (size_with_reads[n], n.mpi_node.index)): + visit(node) + + return result + + +def validate_graph_acyclic(nodes: list[BaseSchedulerNode]) -> None: + """ + Validate that the graph is acyclic by checking predecessor relationships. + + Raises: + RuntimeError: If a cycle is detected in the graph + """ + # DFS coloring scheme for cycle detection: + # WHITE (0): Node has not been visited yet + # GRAY (1): Node is currently being processed (in the recursion stack) + # BLACK (2): Node has been completely processed (finished exploring all its predecessors) + # A back edge (cycle) is detected when we encounter a GRAY node during DFS traversal + WHITE, GRAY, BLACK = 0, 1, 2 + color = dict.fromkeys(nodes, WHITE) + path: list[BaseSchedulerNode] = [] # Track current DFS path + + def dfs_visit(node: BaseSchedulerNode) -> None: + if color[node] == BLACK: + return + + if color[node] == GRAY: + path.append(node) + path_info = " -> ".join([node.get_name() for node in path]) + + raise RuntimeError( + f"Cycle detected in memory planning graph" + f"Path containing cycle (i -> j: j is a dependency of i): {path_info} " + f"This indicates invalid dependency relationships in the scheduler graph" + ) + + color[node] = GRAY + path.append(node) + + for pred_node in node.mpi_node.pred_nodes: + assert pred_node != node + dfs_visit(pred_node) + + path.pop() + color[node] = BLACK + + # Start DFS from all unvisited nodes + for node in nodes: + if color[node] == WHITE: + dfs_visit(node) + + +def validate_unique_buffer_names( + nodes: list[BaseSchedulerNode], + name_to_buf: dict[str, SchedulerBuffer], + name_to_freeable_input_buf: dict[str, FreeableInputBuffer], +) -> None: + """ + Validate that for each node's output buffer, the name_to_buf mapping is correct. + For each output buffer buf, we should have name_to_buf[buf.get_name()] == buf. + Also validate that no buffer names overlap with freeable input buffer names. + + Raises: + RuntimeError: If buffer name mapping is incorrect or names overlap + """ + for node in nodes: + for buf in node.get_outputs(): + buf_name = buf.get_name() + + # Check if buffer name exists in the mapping + if buf_name not in name_to_buf: + raise RuntimeError( + f"{buf_name} from {node.get_name()} is not found in name_to_buf mapping." + f" This indicates a missing buffer mapping." + ) + + # Check if the mapping points to the correct buffer object + if name_to_buf[buf_name] != buf: + raise RuntimeError( + f"Buffer name mapping is incorrect for '{buf_name}'." + f"Expected name_to_buf['{buf_name}'] to be {buf.debug_str()}" + f"but got {name_to_buf[buf_name].debug_str()}" + f"This indicates some buffers share the same name" + ) + + # Check if buffer name conflicts with freeable input buffer names + if buf_name in name_to_freeable_input_buf: + raise RuntimeError( + f"Buffer name conflict detected: '{buf_name}' from node {node.get_name()} " + f"is also used as a freeable input buffer name. " + ) + + +def prepare_planning_info( + nodes: list[BaseSchedulerNode], + name_to_buf: dict[str, SchedulerBuffer], + name_to_fused_node: dict[str, BaseSchedulerNode], + graph_inputs: OrderedSet[str], + graph_outputs: OrderedSet[str], +) -> tuple[int, dict[str, FreeableInputBuffer]]: + """ + Prepare planning info. As nodes are scheduled one at a time, these help + keep track of when a buffer can be freed, and when a node can be scheduled + + Returns: + int: peak memory estimation + dict[str, FreeableInputBuffer]: name to freeable input buffer + """ + name_to_freeable_input_buf = get_freeable_input_buf(nodes, graph_inputs) + assign_memory_planning_info_for_scheduler_buffers(nodes, name_to_buf) + assign_memory_planning_info_for_scheduler_nodes( + nodes, name_to_fused_node, name_to_buf, name_to_freeable_input_buf + ) + + # the default + estimated_peak_memory, _ = estimate_peak_memory( + nodes, name_to_freeable_input_buf, graph_outputs + ) + + return estimated_peak_memory, name_to_freeable_input_buf + + +def reorder_for_peak_memory( + nodes: list[BaseSchedulerNode], + name_to_buf: dict[str, SchedulerBuffer], + name_to_fused_node: dict[str, BaseSchedulerNode], + graph_inputs: OrderedSet[str], + graph_outputs: OrderedSet[str], + methods: list[Callable[..., list[BaseSchedulerNode]]] = [ # noqa: B006 + topological_sort_lpmf, + topological_sort_bfs, + topological_sort_dfs, + ], +) -> list[BaseSchedulerNode]: + """ + Try a few heuristics based topological sort algorithms, and pick the one whose + resulting topological order has the lowest peak memory estimation. + """ + + torch_log.info("Reordering for peak memory -- %d nodes", len(nodes)) + + estimated_peak_memory, name_to_freeable_input_buf = prepare_planning_info( + nodes, + name_to_buf, + name_to_fused_node, + graph_inputs, + graph_outputs, + ) + + # export graph for simulator if needed + if config.reorder_for_peak_memory_debug: + export_graph_for_simulator( + nodes, + name_to_freeable_input_buf, + name_to_fused_node, + graph_inputs, + graph_outputs, + ) + + # Validate planning info before proceeding with reordering + try: + validate_graph_acyclic(nodes) + validate_unique_buffer_names(nodes, name_to_buf, name_to_freeable_input_buf) + except RuntimeError: + torch_log.exception("Memory planning validation failed") + if not is_fbcode(): # TODO: remove after ensuring OSS side is safe + raise + + # keep track of the peak memory estimates of different methods + peak_memory_diff_methods: list[PeakMemoryResult] = [] + peak_memory_diff_methods.append( + PeakMemoryResult(nodes, estimated_peak_memory, "baseline") + ) + torch_log.info("Baseline peak memory: %d", estimated_peak_memory) + + # other methods + for method in methods: + try: + if method is topological_sort_lpmf: + order = method( + nodes, name_to_freeable_input_buf, name_to_buf, graph_outputs + ) + else: + order = method(nodes) + assert len(order) == len(nodes) + peak_memory, _ = estimate_peak_memory( + order, name_to_freeable_input_buf, graph_outputs + ) + peak_memory_diff_methods.append( + PeakMemoryResult(order, peak_memory, method.__name__) + ) + torch_log.info("%s peak memory: %d", method.__name__, peak_memory) + except Exception: + torch_log.exception("Failed to reorder for %s", method.__name__) + if not is_fbcode(): # TODO: remove after ensuring OSS side is safe + raise + + signpost_event( + category="inductor", + name="memory", + parameters={ + "orm": {elem.method: elem.peak_memory for elem in peak_memory_diff_methods}, + }, + ) + + # get the optimal one + best_result = min(peak_memory_diff_methods, key=lambda x: x.peak_memory) + + return best_result.order + + +def export_graph_for_simulator( + nodes: list[BaseSchedulerNode], + name_to_freeable_input_buf: dict[str, FreeableInputBuffer], + name_to_fused_node: dict[str, BaseSchedulerNode], + graph_inputs: OrderedSet[str], + graph_outputs: OrderedSet[str], +) -> None: + """ + This is for debugging purposes. It will dump a json file that records graph information. + The graph can then be used in a simulator: https://fburl.com/code/3l3d3qi4 + """ + + class ORMBuffer(TypedDict): + name: str + size_alloc: int + size_free: int + size: int # for backward compatibility + is_input: bool + is_output: bool + deps: list[str] + unmet_deps: list[str] + + class ORMNode(TypedDict): + name: str + buffer_names: list[str] + + class ORMGraph(TypedDict): + nodes: list[ORMNode] + buffers: list[ORMBuffer] + + orm_buffers: list[ORMBuffer] = [] + orm_nodes: list[ORMNode] = [] + + # get orm buffers for freeable input buffers + for buf_name, input_buf in name_to_freeable_input_buf.items(): + orm_buf_input_buffer: ORMBuffer = { + "name": buf_name, + "size_alloc": input_buf.mpi_buffer.size_free, + "size_free": input_buf.mpi_buffer.size_free, + "size": input_buf.mpi_buffer.size_free, + "is_input": True, + "is_output": buf_name in graph_outputs, + "deps": [], + "unmet_deps": [], + } + orm_buffers.append(orm_buf_input_buffer) + + # get orm buffers for scheduler buffers + name_to_buf: dict[str, SchedulerBuffer] = { + buf.get_name(): buf for node in nodes for buf in node.get_outputs() + } # need to reassign due to probably node pruning + for buf_name, sched_buf in name_to_buf.items(): + if sched_buf.defining_op is None: + continue + deps = [ + pred_buf.get_name() + for pred_buf in name_to_fused_node[ + sched_buf.defining_op.get_name() + ].mpi_node.pred_buffers + ] + orm_buf_scheduler_buffer: ORMBuffer = { + "name": buf_name, + "size_alloc": sched_buf.mpi_buffer.size_alloc, + "size_free": sched_buf.mpi_buffer.size_free, + "size": sched_buf.mpi_buffer.size_free, + "is_input": False, + "is_output": buf_name in graph_outputs, + "deps": deps, + "unmet_deps": [ + buf_name for buf_name in deps if buf_name not in graph_inputs + ], + } + orm_buffers.append(orm_buf_scheduler_buffer) + + # get orm nodes + for node in nodes: + orm_node: ORMNode = { + "name": node.get_name(), + "buffer_names": list(node.get_buffer_names()), + } + orm_nodes.append(orm_node) + + # create the graph object + g: ORMGraph = { + "nodes": orm_nodes, + "buffers": orm_buffers, + } + + # dump the graph + import json + import os + + import torch + from functorch.compile import get_graph_being_compiled + + name = os.path.splitext(get_graph_being_compiled())[0] + "_fused" + + g_str = json.dumps(g, indent=2) + + torch._logging.trace_structured( + "artifact", + metadata_fn=lambda: { + "name": name, + "encoding": "string", + }, + payload_fn=lambda: g_str, + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/metrics.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/metrics.py new file mode 100644 index 0000000000000000000000000000000000000000..36f83dc4ba3f22cac11d69048373b3f64b8ee4a4 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/metrics.py @@ -0,0 +1,485 @@ +from __future__ import annotations + +import csv +import dataclasses +import inspect +import os +import re +from dataclasses import dataclass +from functools import lru_cache +from typing import Optional, TYPE_CHECKING, Union + +from torch._inductor import config +from torch._inductor.utils import get_benchmark_name +from torch.utils._ordered_set import OrderedSet + + +# Prevent circular import +if TYPE_CHECKING: + from collections.abc import Callable + + from torch._inductor.runtime.triton_compat import Config + from torch._inductor.scheduler import BaseSchedulerNode + +# counter for tracking how many kernels have been generated +generated_kernel_count = 0 +generated_cpp_vec_kernel_count = 0 +num_bytes_accessed = 0 +nodes_num_elem: list[ + tuple[ + BaseSchedulerNode, + int, + ] +] = [] +node_runtimes: list[tuple[BaseSchedulerNode, float]] = [] + +# counters for tracking fusions +ir_nodes_pre_fusion = 0 + +# counters for tracking to_dtype inserted +cpp_to_dtype_count = 0 + + +@dataclasses.dataclass +class CppOuterLoopFusedCount: + inner_kernel_number: int + local_buffer_number: int = 0 + + +# The length counts the number of outer loop fusions. +cpp_outer_loop_fused_inner_counts: list[CppOuterLoopFusedCount] = [] + +num_comprehensive_padding = 0 +num_matches_for_scatter_upon_const_tensor = 0 + +num_loop_reordering = 0 + +# counter for parallel reduction. +parallel_reduction_count = 0 + +codegen_mix_order_reduction = 0 + + +# reset all counters +def reset() -> None: + global generated_kernel_count + global generated_cpp_vec_kernel_count + global num_bytes_accessed, nodes_num_elem + global ir_nodes_pre_fusion + global cpp_to_dtype_count + global cpp_outer_loop_fused_inner_counts + global num_comprehensive_padding + global num_matches_for_scatter_upon_const_tensor + global num_loop_reordering + global parallel_reduction_count + global codegen_mix_order_reduction + + generated_kernel_count = 0 + generated_cpp_vec_kernel_count = 0 + num_bytes_accessed = 0 + nodes_num_elem.clear() + node_runtimes.clear() + ir_nodes_pre_fusion = 0 + cpp_to_dtype_count = 0 + cpp_outer_loop_fused_inner_counts.clear() + num_comprehensive_padding = 0 + num_matches_for_scatter_upon_const_tensor = 0 + num_loop_reordering = 0 + parallel_reduction_count = 0 + codegen_mix_order_reduction = 0 + + +@dataclass +class CachedMetricsDeltas: + """ + The subset of metrics we want update across cache hits, e.g., the + FxGraphCache. + """ + + generated_kernel_count: int + generated_cpp_vec_kernel_count: int + ir_nodes_pre_fusion: int + cpp_to_dtype_count: int + num_bytes_accessed: int + num_matches_for_scatter_upon_const_tensor: int + + +def get_metric_fields() -> list[str]: + return [field.name for field in dataclasses.fields(CachedMetricsDeltas)] + + +class CachedMetricsHelper: + """ + A helper class to help calculate and apply counter deltas for those + metrics we want to save with cache entries (e.g., FxGraphCache) and + apply on a cache hit. + """ + + def __init__(self) -> None: + self.cached_metrics = {} + for metric in get_metric_fields(): + self.cached_metrics[metric] = globals()[metric] + + def get_deltas(self) -> CachedMetricsDeltas: + delta_metrics = {} + for metric in get_metric_fields(): + delta_metrics[metric] = globals()[metric] - self.cached_metrics[metric] + + return CachedMetricsDeltas(**delta_metrics) + + @staticmethod + def apply_deltas(delta: CachedMetricsDeltas) -> None: + for metric in get_metric_fields(): + globals()[metric] += getattr(delta, metric) + + +REGISTERED_METRIC_TABLES: dict[str, MetricTable] = {} + + +@dataclass +class MetricTable: + table_name: str + column_names: list[str] + + num_rows_added: int = 0 + + def add_row( + self, row_fn: Callable[[], dict[str, Optional[Union[str, float]]]] + ) -> None: + if self.table_name not in enabled_metric_tables(): + return + + row_dict = row_fn() + assert len(self.column_names) == len(row_dict), ( + f"{len(self.column_names)} v.s. {len(row_dict)}" + ) + assert OrderedSet(self.column_names) == OrderedSet(row_dict.keys()), ( + f"{OrderedSet(self.column_names)} v.s. {OrderedSet(row_dict.keys())}" + ) + + bn = get_benchmark_name() + # assert bn is not None + row = [bn] + [row_dict[column_name] for column_name in self.column_names] + assert all(isinstance(i, (str, float, type(None))) for i in row) + self._write_row(row) + + def output_filename(self) -> str: + return f"metric_table_{self.table_name}.csv" + + def write_header(self) -> None: + filename = self.output_filename() + with open(filename, "w") as fd: + writer = csv.writer(fd, lineterminator="\n") + writer.writerow(["model_name"] + self.column_names) + + def _write_row(self, row: list[str | float | None]) -> None: + filename = self.output_filename() + if self.num_rows_added == 0 and not os.path.exists(filename): + self.write_header() + + self.num_rows_added += 1 + + for idx, orig_val in enumerate(row): + if isinstance(orig_val, float): + new_val = f"{orig_val:.6f}" + elif orig_val is None: + new_val = "" + else: + new_val = orig_val + row[idx] = new_val + + with open(filename, "a") as fd: + writer = csv.writer(fd, lineterminator="\n") + writer.writerow(row) + + @staticmethod + def register_table(name: str, column_names: list[str]) -> None: + table = MetricTable(name, column_names) + REGISTERED_METRIC_TABLES[name] = table + + +MetricTable.register_table( + "slow_fusion", + [ + "kernel1_path", + "kernel1_latency", + "kernel2_path", + "kernel2_latency", + "fused_kernel_path", + "fused_kernel_latency", + "slow_down_ratio", + ], +) + +# track the fusion statistics for each graph +MetricTable.register_table( + "graph_stats", + [ + "graph_id", + "num_nodes_before_fusion", + "num_nodes_after_fusion", + ], +) + +# track the perf difference between persistent reduction and non-persistent +# reductions +MetricTable.register_table( + "persistent_red_perf", + [ + "kernel0_path", + "kernel1_path", + "kernel2_path", + "kernel3_path", + "kernel0_latency", + "kernel1_latency", + "kernel2_latency", + "kernel3_latency", + "size_hints", + "reduction_hint", + ], +) + +# Log the fusion failures due to indexing mismatch +MetricTable.register_table( + "fusion_failure_due_to_indexing_mismatch", + [ + "pre_grad_graph_id", + "post_grad_graph_id", + "node1_name", + "node2_name", + "node1_debug_str", + "node2_debug_str", + "common_buffer_names", + "failure_reason", + ], +) + +# Log metadata for pointwise/reduction kernels. E.g., model name, kernel path, numel, rnumel, reduction hint +MetricTable.register_table( + "kernel_metadata", + [ + "kernel_name", + "kernel_path", + "kernel_category", # pointwise/reduction/foreach etc. + "size_hints", + "reduction_hint", + "line_of_code", + "num_load", + "num_store", + "num_for_loop", + "num_atomic_add", + "num_args", + # xyz numel can be different to size_hints since size_hints are rounded + # up to the nearest power of 2. + # Inductor kernel will burn in the xyz numel in kernel code for static + # shape kernels. + # Logging them will be helpful to find unaligned shape for reduction + "xnumel", + "ynumel", + "rnumel", + "kernel_args_num_gb", + ], +) + + +def _parse_kernel_fn_code(kernel_module_code: str) -> str: + """ + The kernel_module_code is the python module that contains kernel function code. + kernel function is the proper triton kernel function annotated with + @triton.jit + """ + from .codecache import PyCodeCache + from .wrapper_benchmark import get_triton_kernel + + mod = PyCodeCache.load(kernel_module_code) + kernel = get_triton_kernel(mod) + # kernel is a CachingAutotune; kernel.fn is the JITFunction; + # kernel.fn.fn is the function being decorate by triton.jit + return inspect.getsource(kernel.fn.fn) + + +def _parse_kernel_line_of_code(proper_kernel_fn_code: str) -> int: + """ + Return the line of code for the kernel excluding the decorators. + """ + return len(proper_kernel_fn_code.splitlines()) + + +def _parse_size_hints(kernel_module_code: str, kernel_category: str) -> Optional[str]: + if kernel_category == "foreach": + # foreach kernel does not have size_hints + return None + m = re.search(r"size_hints=(\[[0-9, ]*\]),", kernel_module_code) + assert m, "size_hints missing!" + return m.group(1) + + +def _parse_reduction_hint( + kernel_category: str, kernel_module_code: str +) -> Optional[str]: + if kernel_category not in ("reduction", "persistent_reduction"): + return None + m = re.search(r"reduction_hint=ReductionHint\.(\w*),", kernel_module_code) + assert m, "reduction_hint not found in kernel source code!" + return m.group(1) + + +def _count_pattern(proper_kernel_fn_code: str, pattern: str) -> int: + return proper_kernel_fn_code.count(pattern) + + +def _count_args(proper_kernel_fn_code: str) -> int: + def_line = proper_kernel_fn_code.splitlines()[0] + assert def_line.startswith("def ") + start_idx = def_line.index("(") + end_idx = def_line.index("):") + decl_csv = def_line[start_idx + 1 : end_idx] + comps = decl_csv.split(",") + return len(comps) + + +def _parse_proper_kernel_fn_code(kernel_fn_code: str) -> str: + """ + Skip decorators. + """ + start_pos = kernel_fn_code.index("def ") + return kernel_fn_code[start_pos:] + + +def _parse_numel(proper_kernel_fn_code: str, numel_arg_name: str) -> Optional[int]: + m = re.search(f"{numel_arg_name} = ([\\d]+)", proper_kernel_fn_code) + if m: + return int(m.group(1)) + else: + return None + + +def _parse_kernel_args_num_gb( + kernel_fn_code: str, kernel_category: str +) -> Optional[float]: + """ + inductor meta looks like: + inductor_meta={... 'mutated_arg_names': [], 'no_x_dim': False, 'kernel_num_gb': 2.0}, + """ + m = re.search(r".kernel_num_gb.:\s*([0-9.]+)", kernel_fn_code) + if m: + return float(m.group(1)) + else: + """ + There are a few cases that kernel_num_gdb field can be missing: + 1. the field will be missing if config.benchmark_kernel and + config.profile_bandwidth are false + 2. even if config.benchmark_kernel or config.profile_bandwidth is true. + foreach kernel does not have kernel_num_gb field in the metadata + """ + return None + + +def log_kernel_metadata( + kernel_name: str, kernel_path: str, kernel_module_code: str +) -> None: + """ + An utility to log kernel metadata. We may parse metadata from kernel source code here. + + It's fine to parse the generated kernel code here since the logging is + disabled by default. It would hurt compilation time. + """ + from .wrapper_benchmark import get_kernel_category_by_source_code + + kernel_category = get_kernel_category_by_source_code(kernel_module_code) + reduction_hint = _parse_reduction_hint(kernel_category, kernel_module_code) + size_hints = _parse_size_hints(kernel_module_code, kernel_category) + kernel_fn_code = _parse_kernel_fn_code(kernel_module_code) + + proper_kernel_fn_code = _parse_proper_kernel_fn_code(kernel_fn_code) + + # the line of code excluding the decortors + kernel_line_of_code = _parse_kernel_line_of_code(proper_kernel_fn_code) + + get_metric_table("kernel_metadata").add_row( + lambda: { + "kernel_name": kernel_name, + "kernel_path": kernel_path, + "kernel_category": kernel_category, + "size_hints": size_hints, + "reduction_hint": reduction_hint, + "line_of_code": kernel_line_of_code, + "num_load": _count_pattern(proper_kernel_fn_code, "tl.load"), + "num_store": _count_pattern(proper_kernel_fn_code, "tl.store"), + "num_for_loop": _count_pattern(proper_kernel_fn_code, "for "), + "num_atomic_add": _count_pattern(proper_kernel_fn_code, "tl.atomic_add"), + "num_args": _count_args(proper_kernel_fn_code), + "xnumel": _parse_numel(proper_kernel_fn_code, "xnumel"), + "ynumel": _parse_numel(proper_kernel_fn_code, "ynumel"), + "rnumel": _parse_numel(proper_kernel_fn_code, "rnumel"), + "kernel_args_num_gb": _parse_kernel_args_num_gb( + kernel_fn_code, kernel_category + ), + } + ) + + +def purge_old_log_files() -> None: + """ + Purge the old log file at the beginning when the benchmark script runs. + Should do it in the parent process rather than the child processes running + each individual model. + """ + for name, table in REGISTERED_METRIC_TABLES.items(): + if name in enabled_metric_tables(): + filename = table.output_filename() + if os.path.exists(filename): + os.unlink(filename) + + table.write_header() + + +def enabled_metric_tables() -> OrderedSet[str]: + return enabled_metric_tables_impl(config.enabled_metric_tables) + + +@lru_cache +def enabled_metric_tables_impl(config_str: str) -> OrderedSet[str]: + enabled: OrderedSet[str] = OrderedSet() + for name in config_str.split(","): + name = name.strip() + if not name: + continue + assert name in REGISTERED_METRIC_TABLES, ( + f"Metric table name {name} is not registered" + ) + enabled.add(name) + return enabled + + +def is_metric_table_enabled(name: str) -> bool: + return name in enabled_metric_tables() + + +def get_metric_table(name: str) -> MetricTable: + assert name in REGISTERED_METRIC_TABLES, f"Metric table {name} is not defined" + return REGISTERED_METRIC_TABLES[name] + + +MetricTable.register_table( + "kernel_autotune", + [ + "kernel_path", + "kernel_name", + "triton_config", + "latency_ms", + ], +) + + +def log_kernel_autotune_result( + kernel_path: str, kernel_name: str, config: Config, latency: float +) -> None: + get_metric_table("kernel_autotune").add_row( + lambda: { + "kernel_path": kernel_path, + "kernel_name": kernel_name, + "triton_config": str(config), + "latency_ms": latency, + } + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/mkldnn_ir.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/mkldnn_ir.py new file mode 100644 index 0000000000000000000000000000000000000000..0040d77a00afd9d156bc5824bcdffd9b8c0b7c02 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/mkldnn_ir.py @@ -0,0 +1,1362 @@ +# mypy: allow-untyped-defs +from collections.abc import Sequence +from typing import Any, Optional, Union + +import sympy + +import torch +from torch._prims_common import make_channels_last_strides_for, StrideType +from torch.utils._ordered_set import OrderedSet + +from .ir import ( + ExternKernelAlloc, + FixedLayout, + FlexibleLayout, + get_device_type, + ir_node_to_tensor, + IRNode, + is_contiguous_storage_and_layout, + Layout, + may_convert_to_optional, + MultiOutput, + MultiOutputLayout, + MutationOutput, + NoneLayout, + ShapeAsConstantBuffer, + TensorBox, +) +from .utils import convert_shape_to_inductor, pad_listlike, SUPPORTED_MKLDNN_DEVICES +from .virtualized import V + + +def _prepare_convolution_fusion_create( + cls, + x: "TensorBox", + weight: "TensorBox", + bias: "TensorBox", + padding: Sequence[int], + stride: Sequence[int], + dilation: Sequence[int], + groups: int, + transposed: bool = False, + output_padding: Optional[Sequence[int]] = None, + quantize_args: Optional[list["TensorBox"]] = None, + other: Optional["TensorBox"] = None, +): + """ + This function is a helper function to prepare inputs, layout and constant args + for convolution post-op fusion's create function, including deciding the output + layout (channels first or channels last), realizing inputs and make them etc. The + function only supports the CPU/XPU device since conv post-op fusion kernel is only + supported on CPU/XPU right now. + """ + + # Port from aten/src/ATen/native/ConvUtils.h: _conv_input_size + def _conv_input_size( + output_size, weight_size, padding, output_padding, stride, dilation, groups + ): + assert len(output_size) == len(weight_size), "Expect input dim == weight dim" + dim = len(output_size) + assert dim > 2, "Expect input dim > 2" + + BATCH_DIM = 0 + WEIGHT_INPUT_CHANNELS_DIM = 1 + input_size = [] + input_size.append(output_size[BATCH_DIM]) + input_size.append(weight_size[WEIGHT_INPUT_CHANNELS_DIM] * groups) + for d in range(2, dim): + kernel = (weight_size[d] - 1) * dilation[d - 2] + 1 + input_size_d = ( + (output_size[d] - 1) * stride[d - 2] + - (padding[d - 2] * 2) + + kernel + + output_padding[d - 2] + ) + input_size.append(input_size_d) + return list(map(int, input_size)) + + # Port from aten/src/ATen/native/ConvUtils.h: _conv_output_size + def _conv_output_size(input_size, weight_size, padding, stride, dilation=None): + has_dilation = dilation is not None + dim = len(input_size) + output_size = [] + output_size.append(input_size[0]) + output_size.append(weight_size[0]) + for d in range(2, dim): + # pyrefly: ignore [unsupported-operation] + dilation_ = dilation[d - 2] if has_dilation else 1 + kernel = dilation_ * (weight_size[d] - 1) + 1 + output_size_d = (input_size[d] + (2 * padding[d - 2]) - kernel) // stride[ + d - 2 + ] + 1 + output_size.append(output_size_d) + return output_size + + # The size of prepacked_weight is the prepacked weight size of deconv: + # Groups > 1: [g*o, i/g, ...] + # Groups == 1: [o, i, ...] + # Returns original weight size in [i, o, ...] + def _original_deconv_weight_size( + prepacked_weight, + groups, + ): + prepacked_weight_size = prepacked_weight.size() + dim = len(prepacked_weight_size) + assert dim > 2, "Expect weight dim > 2" + if groups > 1: + weight_size = [] + weight_size.append(prepacked_weight_size[1] * groups) + weight_size.append(prepacked_weight_size[0] / groups) + weight_size.extend(prepacked_weight_size[d] for d in range(2, dim)) + else: + weight_size = prepacked_weight.transpose(0, 1).size() + return weight_size + + x.realize() + weight.realize() + if bias is not None: + bias.realize() + with V.graph.fake_mode: + # TODO cleaned up the fake_tensor trace as Linear implementation + x_fake = ir_node_to_tensor(x, guard_shape=True) + weight_fake = ir_node_to_tensor(weight, guard_shape=True) + dims = len(x_fake.size()) - 2 + assert 0 < len(padding) <= dims + assert 0 < len(dilation) <= dims + assert 0 < len(stride) <= dims + padding = pad_listlike(padding, dims) + dilation = pad_listlike(dilation, dims) + stride = pad_listlike(stride, dims) + if output_padding is None: + output_padding = pad_listlike([0], dims) + else: + assert 0 < len(output_padding) <= dims + output_padding = pad_listlike(output_padding, dims) + assert isinstance(groups, (int, sympy.core.numbers.Integer)) + if transposed: + # When transposed, the size of the prepacked oneDNN weight is different + # from the PyTorch weight. We're not able to run aten conv with such + # size. We infer the output size from the input params here: + weight_size = _original_deconv_weight_size(weight_fake, groups) + input_size = x_fake.size() + output_size = _conv_input_size( + input_size, + weight_size, + padding, + output_padding, + stride, + dilation, + groups, + ) + else: + x_shape = list(x_fake.shape) + weight_shape = list(weight_fake.shape) + if len(x_shape) != len(weight_shape): + assert len(x_shape) == 3 and len(weight_shape) == 4 + weight_shape.pop(2) + output_size = _conv_output_size( + x_shape, + weight_shape, + padding, + stride, + dilation, + ) + + req_stride_order = [0] + list(reversed(range(1, len(stride) + 1))) + req_stride_order = [len(req_stride_order)] + req_stride_order + + x = cls.require_stride_order(x, req_stride_order) + + # We won't do weight prepack for Conv if dynamic_shapes or if is xpu. + # In static shape cases, since weight is prepacked, we'll always force output to be channels last in the Conv kernel. + # In dynamic shape cases, for input with channels = 1, like tensor of size (s0, 1, 28, 28) and stride (784, 784, 28, 1), + # x = cls.require_stride_order(x, req_stride_order) where req_stride_order is in the channels last order + # won't change the stride of this tensor since stride for dimensions of size 1 is ignored. While in Conv kernel, + # this tensor is considered as channels first and the output will be in contiguous format. + # To align the behavior of the Conv kernel, we set the output_stride in such case to be contiguous instead of channels last. + dynamic_shapes = not all(isinstance(i, int) for i in (output_size)) + if ( + dynamic_shapes or get_device_type(x) == "xpu" + ) and is_contiguous_storage_and_layout(x): + output_stride: StrideType = FlexibleLayout.contiguous_strides(output_size) + # Currently we don't support channel last for the situation that stride of input's batch dim is 0, + # eg. input_size = (1, 1280, 64, 64), but input_stride=(0, 1, 81920, 1280). + # So we use NCHW hear instead. + # Different with cpu, cpu conv always use channels_last for convolution when weight is prepacked, + # but xpu does not do the prepack, so the problem exposed here is only for xpu. + # TODO support channels_last for such zero stride input. + elif get_device_type(x) == "xpu" and x.get_stride()[0] == 0: + output_stride = FlexibleLayout.contiguous_strides(output_size) + else: + output_stride = make_channels_last_strides_for(output_size) + + assert get_device_type(x) == get_device_type(weight) + assert get_device_type(x) in SUPPORTED_MKLDNN_DEVICES + inputs = [x] + + if quantize_args is not None: + x_scale, x_zero_point, w_scale, w_zero_point = quantize_args + x_scale.realize() + x_zero_point.realize() + w_scale.realize() + w_zero_point.realize() + inputs = inputs + [x_scale, x_zero_point] + [weight] + [w_scale, w_zero_point] + else: + inputs += [weight] + + if other is not None: + other = cls.require_stride_order(other, req_stride_order) + assert isinstance(other, TensorBox) + inputs += [other] + + kernel_layout = FixedLayout( + x.get_device_or_error(), + x.get_dtype(), + convert_shape_to_inductor(output_size), + convert_shape_to_inductor(output_stride), + ) + constant_args = [padding, stride, dilation, groups] + if transposed: + constant_args.insert(1, output_padding) + + if bias is not None: + inputs.append(bias) + else: + constant_args.insert(0, bias) + return inputs, constant_args, kernel_layout, req_stride_order, other + + +def _prepare_linear_fusion_create( + cls, + x: "TensorBox", + weight: "TensorBox", + bias: "TensorBox", + quantize_args: Optional[list["TensorBox"]] = None, + other: Optional["TensorBox"] = None, + binary_sum: bool = False, +): + """ + This function is a helper function to prepare inputs, layout and constant args + for linear post-op fusion's create function. The function only supports the CPU device + since linear post-op fusion kernel is only supported on CPU right now. + """ + x.realize() + weight.realize() + if bias is not None: + bias.realize() + + *m, _ = x.get_size() + # The weight has been transposed during the qlinear weight prepack process. + # https://github.com/pytorch/pytorch/blob/4979f9c0d72490970e2019bb1d2284f83d93f76b/ + # aten/src/ATen/native/quantized/cpu/qlinear_prepack.cpp#L291 + _, oc = weight.get_size() + output_size = list(m) + [oc] + req_stride_order = list(reversed(range(len(x.get_size())))) + + x = cls.require_stride_order(x, req_stride_order) + assert get_device_type(x) == get_device_type(weight) + assert get_device_type(x) in SUPPORTED_MKLDNN_DEVICES + inputs = [x] + + if quantize_args is not None: + x_scale, x_zero_point, w_scale, w_zero_point = quantize_args + x_scale.realize() + x_zero_point.realize() + w_scale.realize() + w_zero_point.realize() + inputs = inputs + [x_scale, x_zero_point] + [weight] + [w_scale, w_zero_point] + else: + inputs += [weight] + + if other is not None: + if binary_sum: + other = cls.require_stride_order(other, req_stride_order) + inputs = inputs + [other] + + output_stride = FlexibleLayout.contiguous_strides(output_size) + kernel_layout = FixedLayout( + x.get_device(), + x.get_dtype(), + output_size, + output_stride, + ) + constant_args: list[Any] = [] + + if bias is not None: + inputs.append(bias) + else: + constant_args.insert(0, bias) + return inputs, constant_args, kernel_layout, req_stride_order, other + + +def _create_output_node(packed): + output_ir = MultiOutput( + packed.get_layout(), + packed, + [], + ) + packed.layout = MultiOutputLayout(device=packed.get_device()) + packed.outputs = [output_ir] + return output_ir + + +class ConvolutionUnary(ExternKernelAlloc): + def __init__( + self, + layout, + inputs, + constant_args=(), + ) -> None: + self.device_type = get_device_type(inputs[0]) + super().__init__( + layout, + inputs, + constant_args, + None, + op_overload=torch.ops.mkldnn._convolution_pointwise.default, + cpp_kernel_name=f"aoti_torch_{self.device_type}_mkldnn__convolution_pointwise", + ) + + def codegen(self, wrapper): + wrapper.include_extra_header( + f"torch/csrc/inductor/aoti_torch/c/shim_{self.device_type}.h" + ) + super().codegen(wrapper) + + @classmethod + def create( + cls, + x: "TensorBox", + weight: "TensorBox", + bias: "TensorBox", + padding_: list[int], + stride_: list[int], + dilation_: list[int], + groups: int, + attr, + scalars: Optional[list[Any]], + algorithm, + ): + ( + inputs, + constant_args, + kernel_layout, + _, + _, + ) = _prepare_convolution_fusion_create( + cls, x, weight, bias, padding_, stride_, dilation_, groups + ) + constant_args = constant_args + [ + attr, + may_convert_to_optional(scalars), + algorithm, + ] + packed = ConvolutionUnary( + layout=kernel_layout, + inputs=inputs, + constant_args=constant_args, + ) + return _create_output_node(packed) + + +class ConvolutionBinary(ExternKernelAlloc): + def __init__( + self, + layout, + inputs, + constant_args=(), + cpp_constant_args=(), + ) -> None: + self.device_type = get_device_type(inputs[0]) + super().__init__( + layout, + inputs, + constant_args, + None, + op_overload=torch.ops.mkldnn._convolution_pointwise.binary, + cpp_kernel_name=f"aoti_torch_{self.device_type}_mkldnn__convolution_pointwise_binary", + ) + self.cpp_constant_args = cpp_constant_args + + def codegen(self, wrapper): + wrapper.include_extra_header( + f"torch/csrc/inductor/aoti_torch/c/shim_{self.device_type}.h" + ) + super().codegen(wrapper) + + @classmethod + def create( + cls, + x: "TensorBox", + other: "TensorBox", + weight: "TensorBox", + bias: "TensorBox", + padding_: list[int], + stride_: list[int], + dilation_: list[int], + groups: int, + binary_attr: str, + binary_alpha: Optional[float], + unary_attr: Optional[str], + unary_scalars: Optional[list[Any]], + unary_algorithm: Optional[str], + ): + ( + inputs, + constant_args, + kernel_layout, + req_stride_order, + _, + ) = _prepare_convolution_fusion_create( + cls, x, weight, bias, padding_, stride_, dilation_, groups + ) + # pyrefly: ignore [bad-assignment] + other = cls.require_stride_order(other, req_stride_order) + inputs.insert(1, other) + constant_args = constant_args + [ + binary_attr, + binary_alpha, + unary_attr, + may_convert_to_optional(unary_scalars), + unary_algorithm, + ] + packed = ConvolutionBinary( + layout=kernel_layout, + inputs=inputs, + constant_args=constant_args, + ) + return _create_output_node(packed) + + +class ConvolutionBinaryInplace(ExternKernelAlloc): + def __init__( + self, + kernel_layout, + inputs, + constant_args=(), + ) -> None: + # Due to constrain of op.call, other (Tensor&) should be at input[0] + self.device_type = get_device_type(inputs[0]) + reordered_inputs = [inputs[1], inputs[0]] + inputs[2:] + + super().__init__( + kernel_layout, + reordered_inputs, + constant_args, + None, + op_overload=torch.ops.mkldnn._convolution_pointwise_.binary, + cpp_kernel_name=f"aoti_torch_{self.device_type}_mkldnn__convolution_pointwise_binary_", + ) + + self.mutation_outputs = [ + MutationOutput(NoneLayout(device=inputs[0].get_device()), inputs[0], self), + MutationOutput(NoneLayout(device=inputs[1].get_device()), inputs[1], self), + ] + + def codegen(self, wrapper): + wrapper.include_extra_header( + f"torch/csrc/inductor/aoti_torch/c/shim_{self.device_type}.h" + ) + super().codegen(wrapper) + + def get_unbacked_symbol_defs(self) -> OrderedSet[sympy.Symbol]: + return OrderedSet() + + @classmethod + def create( + cls, + x: "TensorBox", + other: "TensorBox", + weight: "TensorBox", + bias: "TensorBox", + padding_: list[int], + stride_: list[int], + dilation_: list[int], + groups: int, + binary_attr: str, + binary_alpha: Optional[float], + unary_attr: Optional[str], + unary_scalars: Optional[list[Any]], + unary_algorithm: Optional[str], + ): + ( + inputs, + constant_args, + _, + req_stride_order, + _, + ) = _prepare_convolution_fusion_create( + cls, x, weight, bias, padding_, stride_, dilation_, groups + ) + # pyrefly: ignore [bad-assignment] + other = cls.require_stride_order(other, req_stride_order) + inputs.insert(1, other) + constant_args = constant_args + [ + binary_attr, + binary_alpha, + unary_attr, + may_convert_to_optional(unary_scalars), + unary_algorithm, + ] + packed = ConvolutionBinaryInplace( + kernel_layout=NoneLayout(device=inputs[1].get_device()), # type: ignore[arg-type] + inputs=inputs, + constant_args=constant_args, + ) + # This op mutates in place which means that the result is not the + # target but rather the input that is being mutated + # init reorders the inputs, so inputs[1] becomes packed.inputs[0] + return packed.inputs[0] + + +class ConvolutionTransposeUnary(ExternKernelAlloc): + def __init__( + self, + layout, + inputs, + constant_args=(), + ) -> None: + self.device_type = get_device_type(inputs[0]) + super().__init__( + layout, + inputs, + constant_args, + None, + op_overload=torch.ops.mkldnn._convolution_transpose_pointwise.default, + cpp_kernel_name=f"aoti_torch_{self.device_type}_mkldnn__convolution_transpose_pointwise", + ) + + def codegen(self, wrapper): + wrapper.include_extra_header( + f"torch/csrc/inductor/aoti_torch/c/shim_{self.device_type}.h" + ) + super().codegen(wrapper) + + @classmethod + def create( + cls, + x: "TensorBox", + weight: "TensorBox", + bias: "TensorBox", + padding_: list[int], + output_padding_: list[int], + stride_: list[int], + dilation_: list[int], + groups_: int, + attr, + scalars: Optional[list[Any]], + algorithm, + ): + transposed = True + ( + inputs, + constant_args, + kernel_layout, + _, + _, + ) = _prepare_convolution_fusion_create( + cls, + x, + weight, + bias, + padding_, + stride_, + dilation_, + groups_, + transposed, + output_padding_, + ) + constant_args = constant_args + [ + attr, + may_convert_to_optional(scalars), + algorithm, + ] + packed = ConvolutionTransposeUnary( + layout=kernel_layout, + inputs=inputs, + constant_args=constant_args, + ) + return _create_output_node(packed) + + +class QConvPointWisePT2E(ExternKernelAlloc): + def __init__( + self, + layout, + inputs, + constant_args=(), + ) -> None: + """ + if bias is not None + - inputs = [x, w, b, weight_scale, weight_zp] + - const_args is: [stride, padding, dilation, groups, x_scale, x_zp, o_scale, o_zp, + fp32_output, unary_attr, unary_scalars, unary_algorithm] + else + - inputs = [x, w, weight_scale, weight_zp] + - const_args is: [bias, stride, padding, dilation, groups, x_scale, x_zp, o_scale, o_zp, + fp32_output, unary_attr, unary_scalars, unary_algorithm] + """ + self.device_type = get_device_type(inputs[0]) + self.has_bias = len(inputs) == 5 + super().__init__( + layout, + inputs, + constant_args, + None, + op_overload=torch.ops.onednn.qconv_pointwise.tensor, + cpp_kernel_name=f"aoti_torch_{self.device_type}__qconv_pointwise_tensor", + ) + + def codegen(self, wrapper): + wrapper.include_extra_header( + f"torch/csrc/inductor/aoti_torch/c/shim_{self.device_type}.h" + ) + super().codegen(wrapper) + if isinstance(self.layout, Layout): + self.codegen_size_asserts(wrapper) + + @classmethod + def create( + cls, + qx: "TensorBox", + x_scale: Union["ShapeAsConstantBuffer", "TensorBox"], + x_zero_point: Union["ShapeAsConstantBuffer", "TensorBox"], + qw: "TensorBox", # qw + w_scale: "TensorBox", + w_zero_point, + bias: "TensorBox", + stride: list[int], + padding: list[int], + dilation: list[int], + groups: int, + output_scale: float, + output_zero_point: int, + output_dtype, + attr, + scalars, + algorithm, + ): + transposed = False + output_padding = None + ( + inputs, + constant_args, + kernel_layout, + _, + _, + ) = _prepare_convolution_fusion_create( + cls, + qx, + qw, + bias, + padding, + stride, + dilation, + groups, + transposed, + output_padding, + [x_scale, x_zero_point, w_scale, w_zero_point], # type: ignore[list-item] + ) + # swap padding and stride to align with functional conv arg order + if bias is None: + constant_args[1], constant_args[2] = constant_args[2], constant_args[1] + else: + constant_args[0], constant_args[1] = constant_args[1], constant_args[0] + + constant_args = constant_args + [ + output_scale, + output_zero_point, + output_dtype, + attr, + may_convert_to_optional(scalars), + algorithm, + ] + + assert output_dtype is not None + if output_dtype in [torch.float32, torch.bfloat16]: + # in _prepare_convolution_fusion_create, we use x.dtype (uint8) to create kernel_layout + # if we set output_dtype is not None, the output buf should be output_dtype instead of uint8. + kernel_layout.dtype = output_dtype + + return QConvPointWisePT2E( + layout=kernel_layout, + inputs=inputs, + constant_args=constant_args, + ) + + +class QConvPointWiseBinaryPT2E(ExternKernelAlloc): + def __init__( + self, + layout, + inputs, + constant_args=(), + ) -> None: + """ + Needs input/weight/output qparams + if bias is not None + - inputs = [x, x_scale, x_zp, w, w_scale, w_zp, accum, b] + - const_args = [stride, padding, dilation, groups, o_scale, o_zp, + output_dtype, accum_scale, accum_zp, binary_attr, alpha, unary_attr, unary_scalars, unary_algorithm] + else + - inputs = [x, x_scale, x_zp, w, w_scale, w_zp, accum] + - const_args [b, stride, padding, dilation, groups, o_scale, o_zp, + output_dtype, accum_scale, accum_zp, binary_attr, alpha, unary_attr, unary_scalars, unary_algorithm] + """ + self.device_type = get_device_type(inputs[0]) + self.has_bias = len(inputs) == 8 + self.idx_for_inplace_sum = 6 + super().__init__( + layout, + inputs, + constant_args, + None, + op_overload=torch.ops.onednn.qconv2d_pointwise.binary_tensor, + cpp_kernel_name=( + f"aoti_torch_{self.device_type}__qconv2d_pointwise_binary_tensor" + ), + ) + + def codegen(self, wrapper): + wrapper.include_extra_header( + f"torch/csrc/inductor/aoti_torch/c/shim_{self.device_type}.h" + ) + super().codegen(wrapper) + if isinstance(self.layout, Layout): + self.codegen_size_asserts(wrapper) + + def get_mutation_names(self) -> Sequence[str]: + return [self.input_name(self.idx_for_inplace_sum)] + + def get_unbacked_symbol_defs(self) -> OrderedSet[sympy.Symbol]: + return OrderedSet() + + @classmethod + def create( + cls, + qx: "TensorBox", + x_scale: "TensorBox", + x_zero_point: "TensorBox", + qw: "TensorBox", # packed_weight + w_scale, + w_zero_point, + qaccum: "TensorBox", + bias: "TensorBox", + stride: list[int], + padding: list[int], + dilation: list[int], + groups: int, + output_scale: "TensorBox", + output_zero_point: "TensorBox", + output_dtype, + accum_scale, + accum_zero_point, + binary_attr, + alpha, + unary_attr, + unary_scalars, + unary_algorithm, + ): + transposed = False + output_padding = None + ( + inputs, + constant_args, + _kernel_layout, + req_stride_order, + qaccum, + ) = _prepare_convolution_fusion_create( + cls, + qx, + qw, + bias, + padding, + stride, + dilation, + groups, + transposed, + output_padding, + [x_scale, x_zero_point, w_scale, w_zero_point], + qaccum, + ) + + # swap padding and stride to align with functional conv arg order + if bias is None: + constant_args[1], constant_args[2] = constant_args[2], constant_args[1] + else: + constant_args[0], constant_args[1] = constant_args[1], constant_args[0] + + constant_args = constant_args + [ + output_scale, + output_zero_point, + output_dtype, + accum_scale, + accum_zero_point, + binary_attr, + alpha, + unary_attr, + may_convert_to_optional(unary_scalars), + unary_algorithm, + ] + + assert binary_attr == "sum", ( + "For now, only post op sum is supported in QConvPointWiseBinaryPT2E." + ) + + V.graph.mark_buffer_mutated(qaccum.get_name()) + packed = QConvPointWiseBinaryPT2E( + layout=NoneLayout(device=qaccum.get_device()), + inputs=inputs, + constant_args=constant_args, + ) + + # Return accum since it has been inplace changed. + return packed.inputs[packed.idx_for_inplace_sum] + + +class MKLPackedLinear(ExternKernelAlloc): + def __init__( + self, + layout, + inputs, + constant_args=(), + ) -> None: + super().__init__( + layout, + inputs, + constant_args, + None, + op_overload=torch.ops.mkl._mkl_linear.default, + ) + + def codegen(self, wrapper): + wrapper.include_extra_header("torch/csrc/inductor/aoti_torch/c/shim_cpu.h") + super().codegen(wrapper) + + @classmethod + def create(cls, x, packed_w, orig_w, B, batch_size): + x = cls.require_stride1(cls.realize_input(x)) + orig_w = cls.require_stride1(cls.realize_input(orig_w)) + *m, _ = x.get_size() + oc, _ = orig_w.get_size() + output_size = list(m) + [oc] + output_stride = FlexibleLayout.contiguous_strides(output_size) + inputs = [x, packed_w, orig_w] + constant_args = [batch_size] + if B is not None: + inputs += [B] + else: + constant_args.insert(0, None) + + device = x.get_device() + assert device is not None + return MKLPackedLinear( + layout=FixedLayout(device, x.get_dtype(), output_size, output_stride), + inputs=inputs, + constant_args=constant_args, + ) + + +class LinearUnary(ExternKernelAlloc): + def __init__( + self, + layout, + inputs, + constant_args=(), + ) -> None: + self.device_type = get_device_type(inputs[0]) + super().__init__( + layout, + inputs, + constant_args, + None, + op_overload=torch.ops.mkldnn._linear_pointwise.default, + cpp_kernel_name=f"aoti_torch_{self.device_type}__linear_pointwise", + ) + + def codegen(self, wrapper): + wrapper.include_extra_header( + f"torch/csrc/inductor/aoti_torch/c/shim_{self.device_type}.h" + ) + super().codegen(wrapper) + + @classmethod + def create(cls, x, w, B, attr, scalars, algorithm): + x = cls.require_contiguous(cls.realize_input(x)) + w = cls.require_contiguous(cls.realize_input(w)) + + *m, _ic = x.get_size() + oc, _ic = w.get_size() + output_size = list(m) + [oc] + inputs = [x, w] + constant_args = [attr, scalars if scalars else [-1], algorithm] + if B is not None: + B = cls.require_contiguous(cls.realize_input(B)) + inputs.append(B) + else: + constant_args.insert(0, None) + + device = x.get_device() + assert device is not None + + packed = LinearUnary( + layout=FixedLayout( + device=device, + dtype=x.get_dtype(), + size=output_size, + ), + inputs=inputs, + constant_args=constant_args, + ) + return _create_output_node(packed) + + def apply_constraint(self): + pass + + +class LinearBinary(ExternKernelAlloc): + kernel = "torch.ops.mkldnn._linear_pointwise.binary" + + def __init__( + self, + layout, + inputs, + constant_args=(), + ) -> None: + self.device_type = get_device_type(inputs[0]) + super().__init__( + layout, + inputs, + constant_args, + None, + op_overload=torch.ops.mkldnn._linear_pointwise.binary, + cpp_kernel_name=f"aoti_torch_{self.device_type}__linear_pointwise_binary", + ) + + def codegen(self, wrapper): + wrapper.include_extra_header( + f"torch/csrc/inductor/aoti_torch/c/shim_{self.device_type}.h" + ) + super().codegen(wrapper) + + @classmethod + def create(cls, x, y, w, B, attr): + x = cls.require_contiguous(cls.realize_input(x)) + y = cls.require_contiguous(cls.realize_input(y)) + w = cls.require_contiguous(cls.realize_input(w)) + + *m, _ic = x.get_size() + oc, _ic = w.get_size() + output_size = list(m) + [oc] + inputs = [x, y, w] + constant_args = [attr] + if B is not None: + B = cls.require_contiguous(cls.realize_input(B)) + inputs.append(B) + else: + constant_args.insert(0, B) + + device = x.get_device() + assert device is not None + packed = LinearBinary( + layout=FixedLayout( + device=device, + dtype=x.get_dtype(), + size=output_size, + ), + inputs=inputs, + constant_args=constant_args, + ) + return _create_output_node(packed) + + def apply_constraint(self): + pass + + +class QLinearPointwisePT2E(ExternKernelAlloc): + def __init__( + self, + layout, + inputs, + constant_args=(), + has_bias=True, + ) -> None: + """ + if bias is not None + - inputs = [x, w, b, weight_scale, weight_zp] + - const_args is: [x_scale, x_zp, o_scale, o_zp, + fp32_output, unary_attr, unary_scalars, unary_algorithm] + else + - inputs = [x, w, weight_scale, weight_zp] + - const_args is: [bias, x_scale, x_zp, o_scale, o_zp, + fp32_output, unary_attr, unary_scalars, unary_algorithm] + """ + self.device_type = get_device_type(inputs[0]) + self.has_bias = has_bias + super().__init__( + layout, + inputs, + constant_args, + None, + op_overload=(torch.ops.onednn.qlinear_pointwise.tensor), + cpp_kernel_name=( + f"aoti_torch_{self.device_type}__qlinear_pointwise_tensor" + ), + ) + + def codegen(self, wrapper): + wrapper.include_extra_header( + f"torch/csrc/inductor/aoti_torch/c/shim_{self.device_type}.h" + ) + super().codegen(wrapper) + + if isinstance(self.layout, Layout): + self.codegen_size_asserts(wrapper) + + @classmethod + def create( + cls, + qx: "TensorBox", + x_scale: "TensorBox", + x_zero_point: "TensorBox", + qw: "TensorBox", # packed_weight + w_scale: "TensorBox", + w_zero_point: "TensorBox", + bias: "TensorBox", + output_scale: float, + output_zero_point: int, + output_dtype, + post_op_name, + post_op_args, + post_op_algorithm, + ): + (inputs, constant_args, kernel_layout, _, _) = _prepare_linear_fusion_create( + cls, + qx, + qw, + bias, + [x_scale, x_zero_point, w_scale, w_zero_point], + ) + + constant_args = constant_args + [ + output_scale, + output_zero_point, + output_dtype, + post_op_name, + may_convert_to_optional(post_op_args), + post_op_algorithm, + ] + + assert output_dtype is not None + if output_dtype in [torch.float32, torch.bfloat16]: + # in _prepare_linear_fusion_create, we use x.dtype (uint8) to create kernel_layout + # if we set fp32_output, the output buf should be dtype float32 instead of uint8. + kernel_layout.dtype = output_dtype + + return QLinearPointwisePT2E( + layout=kernel_layout, + inputs=inputs, + constant_args=constant_args, + has_bias=(bias is not None), + ) + + +class QLinearPointwiseBinaryPT2E(ExternKernelAlloc): + def __init__( + self, + layout, + inputs, + constant_args=(), + has_bias=True, + ) -> None: + """ + if bias is not None + - inputs = [x, w, x_scale, x_zp, weight_scale, weight_zp, x2, bias] + - const_args is: [o_scale, o_zp, + fp32_output, binary_attr, alpha, unary_attr, unary_scalars, unary_algorithm] + else + - inputs = [x, w, x_scale, x_zp, weight_scale, weight_zp, x2] + - const_args is: [bias, o_scale, o_zp, + fp32_output, binary_attr, alpha, unary_attr, unary_scalars, unary_algorithm] + """ + self.device_type = get_device_type(inputs[0]) + self.has_bias = has_bias + self.idx_for_inplace_sum = 6 + super().__init__( + layout, + inputs, + constant_args, + None, + op_overload=(torch.ops.onednn.qlinear_pointwise.binary_tensor), + cpp_kernel_name=f"aoti_torch_{self.device_type}__qlinear_pointwise_binary_tensor", + ) + + def codegen(self, wrapper): + wrapper.include_extra_header( + f"torch/csrc/inductor/aoti_torch/c/shim_{self.device_type}.h" + ) + super().codegen(wrapper) + if isinstance(self.layout, Layout): + self.codegen_size_asserts(wrapper) + + def get_mutation_names(self) -> Sequence[str]: + binary_post_op = self.constant_args[-5] + if binary_post_op == "sum": + input = self.inputs[self.idx_for_inplace_sum] + assert isinstance(input, IRNode) + return [input.get_name()] + else: + return [] + + @classmethod + def create( + cls, + qx: "TensorBox", + x_scale: "TensorBox", + x_zero_point: "TensorBox", + qw: "TensorBox", # packed_weight + w_scale: "TensorBox", + w_zero_point: "TensorBox", + other: "TensorBox", + bias: "TensorBox", + output_scale: float, + output_zero_point: int, + output_dtype, + other_scale, + other_zp, + binary_post_op, + binary_alpha, + unary_post_op, + unary_post_op_args, + unary_post_op_algorithm, + ): + ( + inputs, + constant_args, + kernel_layout, + req_stride_order, + other, + ) = _prepare_linear_fusion_create( + cls, + qx, + qw, + bias, + [x_scale, x_zero_point, w_scale, w_zero_point], + other, + binary_post_op == "sum", + ) + + constant_args = constant_args + [ + output_scale, + output_zero_point, + output_dtype, + other_scale, + other_zp, + binary_post_op, + binary_alpha, + unary_post_op, + may_convert_to_optional(unary_post_op_args), + unary_post_op_algorithm, + ] + + if binary_post_op == "sum": + V.graph.mark_buffer_mutated(other.get_name()) + packed = QLinearPointwiseBinaryPT2E( + layout=NoneLayout(device=other.get_device()), + inputs=inputs, + constant_args=constant_args, + has_bias=(bias is not None), + ) + # Return other since it has been inplace changed. + return packed.inputs[packed.idx_for_inplace_sum] + + assert output_dtype is not None + if output_dtype in [torch.float32, torch.bfloat16]: + # in _prepare_linear_fusion_create, we use x.dtype (uint8) to create kernel_layout + # if we set fp32_output, the output buf should be dtype float32 instead of uint8. + kernel_layout.dtype = output_dtype + + return QLinearPointwiseBinaryPT2E( + layout=kernel_layout, + inputs=inputs, + constant_args=constant_args, + has_bias=(bias is not None), + ) + + +class MkldnnRnnLayer(ExternKernelAlloc): + def __init__( + self, + layout, + inputs, + constant_args=(), + ) -> None: + super().__init__( + layout, + inputs, + constant_args, + None, + op_overload=torch.ops.aten.mkldnn_rnn_layer.default, + ) + + @classmethod + def create( + cls, + x: "TensorBox", + w0: "TensorBox", + w1: "TensorBox", + w2: "TensorBox", + w3: "TensorBox", + hx: "TensorBox", + cx: "TensorBox", + reverse: bool, + batch_sizes: list[int], + mode: int, + hidden_size: int, + num_layers: int, + has_biases: bool, + bidirectional: bool, + batch_first: bool, + train: bool, + ): + # pyrefly: ignore [bad-assignment] + x = cls.require_stride1(cls.realize_input(x)) + # If batch_first, x has been permuted in lstm before entering the mkldnn_rnn_layer. + # Make sure x is contiguous in batch_first case. + x.freeze_layout() + # pyrefly: ignore [bad-assignment] + w0 = cls.require_stride1(cls.realize_input(w0)) + # pyrefly: ignore [bad-assignment] + w1 = cls.require_stride1(cls.realize_input(w1)) + # pyrefly: ignore [bad-assignment] + w2 = cls.require_stride1(cls.realize_input(w2)) + # pyrefly: ignore [bad-assignment] + w3 = cls.require_stride1(cls.realize_input(w3)) + # pyrefly: ignore [bad-assignment] + hx = cls.require_stride1(cls.realize_input(hx)) + hx.freeze_layout() + # pyrefly: ignore [bad-assignment] + cx = cls.require_stride1(cls.realize_input(cx)) + cx.freeze_layout() + + input_size = x.get_size() + assert len(input_size) == 3, "Expect lstm input to be 3D" + # batch_first is handled in the lstm OP. When entering + # rnn_layer here, we'll always have batch_first = False + seq_length, mini_batch, input_size = input_size + output_shape = [seq_length, mini_batch, hidden_size] + + hy_shape = hx.get_size() + cy_shape = cx.get_size() + + inputs = [x, w0, w1, w2, w3, hx, cx] + constant_args = [ + reverse, + batch_sizes, + mode, + hidden_size, + num_layers, + has_biases, + bidirectional, + batch_first, + train, + ] + + device = x.get_device() + assert device is not None + packed = MkldnnRnnLayer( + MultiOutputLayout(device=device), + inputs=inputs, + constant_args=constant_args, + ) + + def get_strides_of_lstm_output(output_shape, batch_first): + assert len(output_shape) == 3, "Expect output_shape to be 3D" + return FlexibleLayout.contiguous_strides(output_shape) + + # C shim call requires all the outputs to be passed in, and thus the last + # dummy return value is added. + output_sizes = [output_shape, hy_shape, cy_shape, [1]] + output_strides = [ + get_strides_of_lstm_output(output_shape, batch_first), + FlexibleLayout.contiguous_strides(hy_shape), + FlexibleLayout.contiguous_strides(cy_shape), + [1], + ] + output_ir = [ + MultiOutput( + FixedLayout( + x.get_device(), # type: ignore[arg-type] + x.get_dtype(), + output_size, + output_stride, + ), + packed, + [(tuple, i)], + ) + for i, (output_size, output_stride) in enumerate( + zip(output_sizes, output_strides) + ) + ] + packed.outputs = output_ir + + return output_ir + + def codegen(self, wrapper): + wrapper.include_extra_header("torch/csrc/inductor/aoti_torch/c/shim_cpu.h") + return super().codegen(wrapper) + + +# Add this IR so that we can include shim_cpu.h for cpp_wrapper +class WeightInt4PackMatmul(ExternKernelAlloc): + def __init__( + self, + layout, + inputs, + constant_args=(), + ) -> None: + """ + inputs = [x, w, qGroupSize, qScalesAndZeros] + constant_args = () + """ + assert len(inputs) == 4 + assert len(constant_args) == 0 + super().__init__( + layout, + inputs, + constant_args, + None, + op_overload=(torch.ops.quantized.int4mm_packed_weight_cpu.default), + cpp_kernel_name=("aoti_torch_cpu__weight_int4pack_mm_cpu_tensor"), + ) + + def codegen(self, wrapper): + wrapper.include_extra_header("torch/csrc/inductor/aoti_torch/c/shim_cpu.h") + super().codegen(wrapper) + + if isinstance(self.layout, Layout): + self.codegen_size_asserts(wrapper) + + @classmethod + def create( + cls, + x: "TensorBox", + w: "TensorBox", + qGroupSize: "TensorBox", + qScalesAndZeros: "TensorBox", + ): + inputs = [x, w, qGroupSize, qScalesAndZeros] + *m, _ = x.get_size() + n, _ = w.get_size() + output_size = list(m) + [n] + output_stride = FlexibleLayout.contiguous_strides(output_size) + kernel_layout = FixedLayout( + x.get_device(), # type: ignore[arg-type] + x.get_dtype(), + output_size, + output_stride, + ) + return WeightInt4PackMatmul( + layout=kernel_layout, + inputs=inputs, + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/mkldnn_lowerings.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/mkldnn_lowerings.py new file mode 100644 index 0000000000000000000000000000000000000000..b171de34ae02d70c639129c4b4233e6eaff1cc68 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/mkldnn_lowerings.py @@ -0,0 +1,1404 @@ +# mypy: allow-untyped-defs +import functools +from typing import Optional, Union + +import torch +import torch.utils._pytree as pytree +from torch._inductor.kernel.mm_common import mm_args + +from . import config, ir +from .codegen.cpp_gemm_template import CppGemmTemplate +from .codegen.cpp_grouped_gemm_template import CppGroupedGemmTemplate +from .codegen.cpp_utils import create_epilogue_with_attr +from .ir import TensorBox +from .lowering import ( + add, + add_needs_realized_inputs, + aten, + permute, + register_lowering, + to_dtype, + view, +) +from .select_algorithm import ( + autotune_select_algorithm, + ChoiceCaller, + ExternKernelChoice, +) +from .utils import use_aten_gemm_kernels, use_cpp_gemm_template +from .virtualized import ops, OpsValue, V + + +def create_int8_compensation( + W_tensor: torch.Tensor, + packed_weight: ir.TensorBox, + x_scale: ir.TensorBox, + x_zp: ir.TensorBox, + w_scale: ir.TensorBox, +) -> tuple[ + bool, + Union[ir.TensorBox, ir.ShapeAsConstantBuffer], + Optional[Union[ir.TensorBox, ir.ShapeAsConstantBuffer]], +]: + x_w_scale: Optional[Union[ir.TensorBox, ir.ShapeAsConstantBuffer]] = None + use_int8_fast_compensation_path = all( + isinstance(item, ir.TensorBox) + and item.get_name() in V.graph.constants + and hasattr(item.data, "data") + and isinstance(item.data.data, ir.ConstantBuffer) + for item in [x_scale, x_zp, w_scale] + ) + if use_int8_fast_compensation_path: + x_w_scale_tensor = ( + V.graph.constants[x_scale.get_name()] + * V.graph.constants[w_scale.get_name()] + ) + x_w_scale = V.graph.add_tensor_constant( + x_w_scale_tensor, + name=packed_weight.get_name() + "_x_w_compens", + ) + weight_compens_tensor = torch.sum(W_tensor.to(torch.float), dim=0) + x_zp_tensor = V.graph.constants[x_zp.get_name()] + weight_compens_tensor = weight_compens_tensor * x_w_scale_tensor * x_zp_tensor + weight_compens = V.graph.add_tensor_constant( + weight_compens_tensor, + name=packed_weight.get_name() + "_BMatrixCompens", + ) + else: + weight_compens_tensor = torch.sum(W_tensor.to(torch.float), dim=0) + weight_compens = V.graph.add_tensor_constant( + weight_compens_tensor, + name=packed_weight.get_name() + "_BMatrixCompens", + ) + return ( # type: ignore[return-type] + use_int8_fast_compensation_path, + weight_compens, + x_w_scale, + ) + + +def codegen_int8_gemm_template_compensation( + use_int8_fast_compensation_path: bool, + input: OpsValue, + _weight_compo: OpsValue, + _x_scale: Optional[OpsValue], + _x_zp: Optional[OpsValue], + _w_scale: Optional[OpsValue], + _x_w_scale: Optional[OpsValue], +) -> OpsValue: + if use_int8_fast_compensation_path: + temp = ops.sub( + ops.mul( + input, + _x_w_scale, + ), + _weight_compo, + ) + else: + temp = ops.mul( + ops.mul( + input, + _x_scale, + ), + _w_scale, + ) + # NOTE: We will apply compensation even if the x_zp is 0 for int8 quantization. + # That's because when torch.compile is invoked for dynamic quantization, + # x might coincidentally have such values that x_zp might be zero despite + # asymmetric quantization. + # Besides, if x_zp is dummy for int8 x, or if x is statically quantized, + # we'd still perform that redundant compute to avoid making the code messy + # because we discovered that redundant computation of compensation did not + # lead to performance degradation with the input shapes tested. + temp = ops.sub( + temp, + ops.mul( + ops.mul( + ops.mul( + _x_scale, + _w_scale, + ), + _x_zp, + ), + _weight_compo, + ), + ) + return temp + + +def grouped_gemm_lowering( + x: TensorBox, + w: list[TensorBox], + b: list[TensorBox], + attr=None, + scalars=None, + algorithm=None, + layout=None, +): + x_size = x.get_size() + if len(x_size) > 2: + # GEMM template needs 2D input, normalize input shape here + x = view(x, [-1, x_size[-1]]) + num_gemm = len(w) + + assert config.max_autotune or config.max_autotune_gemm + # pyrefly: ignore [bad-assignment] + b = [bias if bias is None else ir.ExternKernel.realize_input(bias) for bias in b] + + choices: list[ChoiceCaller] = [] + *_, layout, x, _ = mm_args(x, permute(w[0], [1, 0]), layout=layout) + + kwargs = { + "has_bias": [bias is not None for bias in b], + "trans_w": True, + "epilogue_creator": None, + "act_mapping": dict.fromkeys(range(num_gemm), x), + } + + input_nodes = [x, *w] + input_nodes.extend([bias for bias in b if bias is not None]) + + CppGroupedGemmTemplate.add_choices( + choices, + layout, + input_nodes, + **kwargs, # type: ignore[arg-type] + ) + + assert len(choices) != 0 + result = autotune_select_algorithm( + "grouped_gemm", + choices, + input_nodes, + layout, + ) + template_buf = result.data.data + return_bufs = [ + ir.MultiOutput(layout, template_buf, [(list, gemm_idx)]) + for gemm_idx in range(num_gemm) + ] + # pyrefly: ignore [bad-argument-type] + template_buf.layout = ir.MultiOutputLayout(device=input_nodes[0].get_device()) + template_buf.outputs = return_bufs + return_tensors = [ + ir.TensorBox.create(return_bufs[gemm_idx]) for gemm_idx in range(num_gemm) + ] + if len(x_size) > 2: + for gemm_idx in range(num_gemm): + return_tensors[gemm_idx] = view( + return_tensors[gemm_idx], # type: ignore[arg-type] + (*x_size[:-1], return_tensors[gemm_idx].get_size()[-1]), + ) + return return_tensors + + +grouped_gemm_lowering._inductor_lowering_function = True # type: ignore[attr-defined] + + +def register_onednn_fusion_ops(): + if torch._C._has_mkldnn: + from . import mkldnn_ir + + aten_mkldnn_linear_unary = ExternKernelChoice( + torch.ops.mkldnn._linear_pointwise, + "mkldnn::_linear_pointwise", + has_out_variant=False, + kernel_creator=mkldnn_ir.LinearUnary.create, + ) + aten_mkldnn_linear_binary = ExternKernelChoice( + torch.ops.mkldnn._linear_pointwise.binary, + "mkldnn::_linear_pointwise", + has_out_variant=False, + kernel_creator=mkldnn_ir.LinearBinary.create, + ) + aten_mkldnn_qlinear_unary = ExternKernelChoice( + torch.ops.onednn.qlinear_pointwise, + "onednn::qlinear_pointwise", + has_out_variant=False, + kernel_creator=mkldnn_ir.QLinearPointwisePT2E.create, + ) + aten_mkldnn_qlinear_binary = ExternKernelChoice( + torch.ops.onednn.qlinear_pointwise.binary, + "onednn::qlinear_pointwise", + has_out_variant=False, + kernel_creator=mkldnn_ir.QLinearPointwiseBinaryPT2E.create, + ) + cpu_needs_realized_inputs: list[ + Union[torch._ops.OpOverload, torch._ops.OpOverloadPacket] + ] = [ + torch.ops.mkldnn._convolution_pointwise, + torch.ops.mkldnn._convolution_pointwise_, + torch.ops.mkldnn._convolution_transpose_pointwise, + torch.ops.mkldnn._linear_pointwise, + aten.mkldnn_rnn_layer.default, + torch.ops.onednn.qconv_pointwise, + ] + + @register_lowering(torch.ops.mkldnn._convolution_pointwise) + def convolution_unary( + x: TensorBox, + weight: TensorBox, + bias: TensorBox, + padding, + stride, + dilation, + groups, + attr, + scalars, + algorithm, + ): + return TensorBox.create( + mkldnn_ir.ConvolutionUnary.create( + x, + weight, + bias, + padding, + stride, + dilation, + groups, + attr, + scalars, + algorithm, + ) + ) + + @register_lowering(torch.ops.mkldnn._convolution_pointwise.binary) + def convolution_binary( + x: TensorBox, + other: TensorBox, + weight: TensorBox, + bias: TensorBox, + padding, + stride, + dilation, + groups, + binary_attr, + binary_alpha, + unary_attr, + unary_scalars, + unary_algorithm, + ): + return TensorBox.create( + mkldnn_ir.ConvolutionBinary.create( + x, + other, + weight, + bias, + padding, + stride, + dilation, + groups, + binary_attr, + binary_alpha, + unary_attr, + unary_scalars, + unary_algorithm, + ) + ) + + @register_lowering(torch.ops.mkldnn._convolution_pointwise_.binary) + def convolution_binary_inplace( + x: TensorBox, + other: TensorBox, + weight: TensorBox, + bias: TensorBox, + padding, + stride, + dilation, + groups, + binary_attr, + binary_alpha, + unary_attr, + unary_scalars, + unary_algorithm, + ): + return TensorBox.create( + mkldnn_ir.ConvolutionBinaryInplace.create( + x, + other, + weight, + bias, + padding, + stride, + dilation, + groups, + binary_attr, + binary_alpha, + unary_attr, + unary_scalars, + unary_algorithm, + ) + ) + + @register_lowering(torch.ops.mkldnn._linear_pointwise) + def linear_unary( + x: TensorBox, + w: TensorBox, + b: TensorBox, + attr, + scalars, + algorithm, + layout=None, + ): + x_size = x.get_size() + if len(x_size) > 2: + # GEMM template needs 2D input, normalize input shape here + x = view(x, [-1, x_size[-1]]) + if b is not None: + b = ir.ExternKernel.realize_input(b) # type: ignore[assignment] + choices: list[ChoiceCaller] = [] + if config.max_autotune or config.max_autotune_gemm: + transposed_w = permute(w, [1, 0]) + *_, layout, x, transposed_w = mm_args(x, transposed_w, layout=layout) + if use_cpp_gemm_template(layout, x, transposed_w): + + def epilogue_creator(buf): + return create_epilogue_with_attr( + buf, attr, scalars=scalars, algorithm=algorithm + ) + + kwargs = { + "has_bias": b is not None, + "trans_w": True, + "epilogue_creator": ( + None if attr == "none" else epilogue_creator + ), + } + if b is not None: + kwargs["input_indices"] = [2, 0, 1] # type: ignore[assignment] + CppGemmTemplate.add_choices( + choices, + layout, + [x, w] if b is None else [x, w, b], + **kwargs, # type: ignore[arg-type] + ) + if len(choices) == 0 or use_aten_gemm_kernels(): + kwargs = dict(attr=attr, scalars=scalars, algorithm=algorithm) + if b is None: + kwargs["B"] = None + choices.append( + aten_mkldnn_linear_unary.bind( + [x, w] if b is None else [x, w, b], + layout, + **kwargs, + ) + ) + assert w.get_name() in V.graph.constants + input_gen_fns = { + 1: lambda x: V.graph.constants[x.get_name()], + } + result = autotune_select_algorithm( + "linear_unary", + choices, + [x, w] if b is None else [x, w, b], + layout, + input_gen_fns=input_gen_fns, + ) + if len(x_size) > 2: + result = view(result, (*x_size[:-1], result.get_size()[-1])) + return result + + @register_lowering(torch.ops.mkldnn._linear_pointwise.binary) + def linear_binary( + x: TensorBox, y: TensorBox, w: TensorBox, b: TensorBox, attr, layout=None + ): + x_size = x.get_size() + if len(x_size) > 2: + # GEMM template needs 2D input, normalize input shape here + x = view(x, [-1, x_size[-1]]) + y_size = y.get_size() + if len(y_size) > 2: + y = view(y, [-1, y_size[-1]]) + if b is not None: + b = ir.ExternKernel.realize_input(b) # type: ignore[assignment] + choices: list[ChoiceCaller] = [] + if config.max_autotune or config.max_autotune_gemm: + transposed_w = permute(w, [1, 0]) + *_, layout, x, transposed_w, y = mm_args( + x, transposed_w, y, layout=layout + ) + if use_cpp_gemm_template(layout, x, transposed_w): + + def epilogue_creator(buf): + return create_epilogue_with_attr(buf, attr, other=y) + + kwargs = { + "has_bias": b is not None, + "trans_w": True, + "epilogue_creator": epilogue_creator, + } + + # pyrefly: ignore [unsupported-operation] + kwargs["input_indices"] = [0, 2, 1] if b is None else [3, 0, 2, 1] + CppGemmTemplate.add_choices( + choices, + layout, + [x, y, w] if b is None else [x, y, w, b], + **kwargs, # type: ignore[arg-type] + ) + if len(choices) == 0 or use_aten_gemm_kernels(): + kwargs = dict(attr=attr) + if b is None: + kwargs["B"] = None + choices.append( + aten_mkldnn_linear_binary.bind( + [x, y, w] if b is None else [x, y, w, b], + layout, + **kwargs, + ) + ) + assert w.get_name() in V.graph.constants + input_gen_fns = { + 2: lambda x: V.graph.constants[x.get_name()], + } + result = autotune_select_algorithm( + "linear_binary", + choices, + [x, y, w] if b is None else [x, y, w, b], + layout, + input_gen_fns=input_gen_fns, + ) + if len(x_size) > 2: + result = view(result, (*x_size[:-1], result.get_size()[-1])) + return result + + @register_lowering(torch.ops.mkldnn._convolution_transpose_pointwise) + def convolution_transpose_unary( + x: TensorBox, + weight: TensorBox, + bias: TensorBox, + padding, + output_padding, + stride, + dilation, + groups, + attr, + scalars, + algorithm, + ): + return TensorBox.create( + mkldnn_ir.ConvolutionTransposeUnary.create( + x, + weight, + bias, + padding, + output_padding, + stride, + dilation, + groups, + attr, + scalars, + algorithm, + ) + ) + + @register_lowering(aten.mkldnn_rnn_layer.default) + def mkldnn_rnn_layer( + x: TensorBox, + w0: TensorBox, + w1: TensorBox, + w2: TensorBox, + w3: TensorBox, + hx: TensorBox, + cx: TensorBox, + reverse: bool, + batch_sizes: list[int], + mode: int, + hidden_size: int, + num_layers: int, + has_biases: bool, + bidirectional: bool, + batch_first: bool, + train: bool, + ): + return pytree.tree_map( + TensorBox.create, + mkldnn_ir.MkldnnRnnLayer.create( + x, + w0, + w1, + w2, + w3, + hx, + cx, + reverse, + batch_sizes, + mode, + hidden_size, + num_layers, + has_biases, + bidirectional, + batch_first, + train, + ), + ) + + @register_lowering(torch.ops.onednn.qconv_pointwise, type_promotion_kind=None) + def qconvolution_unary( + x: TensorBox, + x_scale, + x_zp, + packed_weight: TensorBox, + w_scale: TensorBox, + w_zp, + bias: TensorBox, + stride, + padding, + dilation, + groups, + o_inv_scale, + o_zero_point, + output_dtype, + attr, + scalars, + algorithm, + ): + if not isinstance(x_scale, ir.TensorBox): + assert type(x_scale) is float + x_scale = V.graph.add_tensor_constant( + torch.tensor(x_scale, dtype=torch.float32), name="x_scale" + ) + + if x_zp is None: + x_zp = V.graph.add_tensor_constant( + torch.tensor(0, dtype=torch.int32), name="x_zp" + ) + if not isinstance(x_zp, ir.TensorBox): + assert type(x_zp) is int + x_zp = V.graph.add_tensor_constant( + torch.tensor(x_zp, dtype=torch.int32), name="x_zp" + ) + + if w_zp is None: + w_zp = V.graph.add_tensor_constant( + torch.tensor(0, dtype=torch.int32), name="w_zp" + ) + + return TensorBox.create( + mkldnn_ir.QConvPointWisePT2E.create( + x, + x_scale, + x_zp, + packed_weight, + w_scale, + w_zp, + bias, + stride, + padding, + dilation, + groups, + o_inv_scale, + o_zero_point, + output_dtype, + attr, + scalars, + algorithm, + ) + ) + + @register_lowering( + torch.ops.onednn.qconv2d_pointwise.binary, type_promotion_kind=None + ) + @register_lowering( + torch.ops.onednn.qconv2d_pointwise.binary_tensor, type_promotion_kind=None + ) + def qconvolution_binary( + x: TensorBox, + x_scale, + x_zp, + packed_weight: TensorBox, + w_scale: TensorBox, + w_zp, + accum: TensorBox, + bias: TensorBox, + stride, + padding, + dilation, + groups, + o_inv_scale, + o_zero_point, + output_dtype, + accum_scale, + accum_zp, + binary_attr, + alpha, + unary_attr, + unary_scalars, + unary_algorithmm, + ): + if not isinstance(x_scale, ir.TensorBox): + assert type(x_scale) is float + x_scale = V.graph.add_tensor_constant( + torch.tensor(x_scale, dtype=torch.float32), name="x_scale" + ) + + if x_zp is None: + x_zp = V.graph.add_tensor_constant( + torch.tensor(0, dtype=torch.int32), name="x_zp" + ) + if not isinstance(x_zp, ir.TensorBox): + assert type(x_zp) is int + x_zp = V.graph.add_tensor_constant( + torch.tensor(x_zp, dtype=torch.int32), name="x_zp" + ) + + if w_zp is None: + w_zp = V.graph.add_tensor_constant( + torch.tensor(0, dtype=torch.int32), name="w_zp" + ) + + if ( + binary_attr == "sum" + and output_dtype in [torch.float32, torch.bfloat16] + and accum.get_dtype() in [torch.float32, torch.bfloat16] + and accum.get_dtype() != output_dtype + ): + # For int8-mixed-bf16 quantization and inplace add, + # there is case when accum dtype is float32 but output dtype is bfloat16. + # Since the accum will be inplaced changed with post op sum, + # we will do accum dtype conversion here. + accum = to_dtype(accum, output_dtype) + return TensorBox.create( + mkldnn_ir.QConvPointWiseBinaryPT2E.create( + x, + x_scale, # type: ignore[arg-type] + x_zp, # type: ignore[arg-type] + packed_weight, + w_scale, + w_zp, + accum, + bias, + stride, + padding, + dilation, + groups, + o_inv_scale, + o_zero_point, + output_dtype, + accum_scale, + accum_zp, + binary_attr, + alpha, + unary_attr, + unary_scalars, + unary_algorithmm, + ) + ) + + @register_lowering(torch.ops.onednn.qlinear_pointwise, type_promotion_kind=None) + def qlinear_unary( + x: TensorBox, + x_scale, + x_zp, + packed_weight: TensorBox, + w_scale: TensorBox, + w_zp: TensorBox, + bias: TensorBox, + o_scale, + o_zero_point, + output_dtype, + attr, + scalars, + algorithm, + layout=None, + ): + assert packed_weight.get_dtype() in [torch.int8, torch.float8_e4m3fn], ( + "Only int8 and e4m3fn weights are supported by oneDNN qlinear." + ) + x_size = x.get_size() + if len(x_size) > 2: + # GEMM template needs 2D input, normalize input shape here + x = view(x, [-1, x_size[-1]]) + if not isinstance(x_scale, ir.TensorBox): + assert type(x_scale) is float + x_scale = V.graph.add_tensor_constant( + torch.tensor(x_scale, dtype=torch.float32), name="x_scale" + ) + else: + x_scale.realize() + if all(dim == 1 for dim in x_scale.get_size()): + # Corner-case discovered with LLaMA series. + # If all outer dims of x_scale are 1, make it a 0D tensor. + # Otherwise, epilogue creator will run into indexing issues. + x_scale = view(x_scale, []) + assert len(x_scale.get_size()) in [0, 1], "x_scale must be 0D or 1D" + + if x_zp is None: + # If x_zp is None, x is int8 quantized per-tensor and its scale is not reshaped, + # then the codegened code would segfault if we don't create a tensor for x_zp. + # It's safe to do so since x is a symmetrically quantized int8 tensor. + # Moreover, oneDNN qlinear API doesn't accept None value for zp + x_zp = V.graph.add_tensor_constant( + torch.tensor(0, dtype=torch.int32), name="x_zp" + ) + if not isinstance(x_zp, ir.TensorBox): + assert type(x_zp) is int + x_zp = V.graph.add_tensor_constant( + torch.tensor(x_zp, dtype=torch.int32), name="x_zp" + ) + else: + x_zp.realize() + + assert x_zp.get_numel() == 1, "x_zp is incompatible with oneDNN qlinear" + + # When channels less than 8, w_scale/w_zp is Pointwise instead of ConstantBuffer + # Refer to + # https://github.com/pytorch/pytorch/blob/f353d17755ed23b02924c962a86ff99a3405fe10/torch/_inductor/graph.py#L570-L577 # noqa: B950 + if w_zp is None: + # If w_zp is None, then it's a dummy tensor created to denote the + # absence of a zero point, and thus w is int8 symmetrically quantized. + # Moreover, oneDNN qlinear API doesn't accept None value for zp + # pyrefly: ignore [bad-assignment] + w_zp = V.graph.add_tensor_constant( + torch.tensor(0, dtype=torch.int32), name="w_zp" + ) + w_scale.realize() + w_zp.realize() + if w_zp.get_dtype() != torch.int32 and isinstance( + ir.InputsKernel.unwrap_storage_for_input(w_zp), + ir.ConstantBuffer, + ): + # W_zp might be a ConstantBuffer with int64, convert it to int32 + w_zp_tensor = V.graph.constants[w_zp.get_name()].to(torch.int32) + w_zp = V.graph.add_tensor_constant( # type: ignore[assignment] + torch.tensor(w_zp_tensor, dtype=torch.int32), name=w_zp.get_name() + ) + + bias_dtype = None if bias is None else bias.get_dtype() + choices: list[ChoiceCaller] = [] + + if config.max_autotune or config.max_autotune_gemm: + *_, layout, x, packed_weight = mm_args( + x, packed_weight, layout=layout, out_dtype=output_dtype + ) + + if ( + # GEMM template currently only supports symmetrically quantized weights + isinstance( + ir.InputsKernel.unwrap_storage_for_input(w_zp), + ir.ConstantBuffer, + ) + and torch.equal( + torch.zeros_like(V.graph.constants[w_zp.get_name()]), + V.graph.constants[w_zp.get_name()], + ) + ) and use_cpp_gemm_template(layout, x, packed_weight): + W_tensor = V.graph.constants[packed_weight.get_name()].to_dense() + + ( + use_int8_fast_compensation_path, + weight_compens, + x_w_scale, + ) = create_int8_compensation( + W_tensor, + packed_weight, + # pyrefly: ignore [bad-argument-type] + x_scale, + # pyrefly: ignore [bad-argument-type] + x_zp, + w_scale, + ) + + def epilogue_creator(input_buffer): + # Epilogue to convert from s32 to f32 for u8s8f32 + assert output_dtype in [ + torch.float32, + torch.bfloat16, + torch.uint8, + torch.int8, + ] + input_loader = input_buffer.make_loader() + weight_compens_loader = weight_compens.make_loader() + x_w_scale_loader = None + if use_int8_fast_compensation_path: + assert x_w_scale is not None + x_w_scale_loader = x_w_scale.make_loader() + x_scale_loader = x_scale.make_loader() + w_scale_loader = w_scale.make_loader() + x_zp_loader = x_zp.make_loader() + nonlocal bias + bias_loader = None + if bias is not None: + bias_loader = bias.make_loader() + + def inner_fn(index): + nonlocal bias + input = input_loader(index) + # MicroKernel Output is with int32 + # cvt to FP32 before doing compensation + input = ops.to_dtype(input, torch.float32) + weight_compens_index = (index[-1],) + + _x_scale = None + _x_zp = None + _w_scale = None + if not use_int8_fast_compensation_path: + _x_scale = x_scale_loader(()) + _x_zp = x_zp_loader(()) + _w_scale = w_scale_loader(weight_compens_index) + _weight_compo = weight_compens_loader(weight_compens_index) + _x_w_scale = None + if use_int8_fast_compensation_path: + assert x_w_scale_loader is not None + _x_w_scale = x_w_scale_loader(weight_compens_index) + # Step 1: Compute s8s8->s32 or u8s8->s32 GEMM & then apply compensation + temp = codegen_int8_gemm_template_compensation( + use_int8_fast_compensation_path, + input, + _weight_compo, + _x_scale, + _x_zp, + _w_scale, + _x_w_scale, + ) + # Step 2: add Bias if applicable + if bias is not None: + # pyrefly: ignore [not-callable] + _bias = bias_loader(weight_compens_index) + nonlocal bias_dtype + assert bias_dtype in [torch.float32, torch.bfloat16] + if bias_dtype == torch.bfloat16: + _bias = ops.to_dtype(_bias, torch.float32) + temp = ops.add(temp, _bias) + + return temp + + output_buf = ir.Pointwise( + device=input_buffer.get_device(), + dtype=torch.float32, # Hardcode to FP32 for u8s8f32 & s8s8f32 + inner_fn=inner_fn, + ranges=input_buffer.get_size(), + ) + + # Step 3: Doing the unary post op fusion + if attr != "none": + output_buf = create_epilogue_with_attr( + output_buf, attr, scalars=scalars, algorithm=algorithm + ) + + # Step 4: Cast output to Target Dtype + if output_dtype == torch.bfloat16: + output_cast_loader = output_buf.make_loader() + + def inner_fn_cast_output_to_bf16(index): + input = output_cast_loader(index) + return ops.to_dtype(input, output_dtype) + + output_buf = ir.Pointwise( + device=output_buf.get_device_or_error(), + dtype=output_dtype, + inner_fn=inner_fn_cast_output_to_bf16, + ranges=output_buf.get_size(), + ) + elif output_dtype in [torch.uint8, torch.int8]: + from .lowering import _create_constants + + requant_input_loader = output_buf.make_loader() + + def inner_fn_requant(index, scale, zero_point): + input = requant_input_loader(index) + inv_scale, zero_point = _create_constants( + 1.0 / scale, zero_point, dtype=torch.float32 + ) + val = ops.round(input * inv_scale) + zero_point + if output_dtype == torch.uint8: + qmin, qmax = _create_constants( + 0, 255, dtype=torch.float32 + ) + else: + qmin, qmax = _create_constants( + -128, 127, dtype=torch.float32 + ) + clamped = ops.minimum(ops.maximum(val, qmin), qmax) + return ops.to_dtype(clamped, output_dtype) + + output_buf = ir.Pointwise( + device=output_buf.get_device_or_error(), + dtype=output_dtype, + inner_fn=functools.partial( + inner_fn_requant, + scale=float(o_scale), + zero_point=int(o_zero_point), + ), + ranges=output_buf.get_size(), + ) + + return output_buf + + assert x.get_dtype() in [torch.uint8, torch.int8] + CppGemmTemplate.add_choices( + choices, + layout, + [x, x_scale, x_zp, packed_weight, w_scale, w_zp] + if bias is None + else [x, x_scale, x_zp, packed_weight, w_scale, w_zp, bias], + has_bias=bias is not None, + epilogue_creator=epilogue_creator, + input_indices=[0, 3, 1, 2, 4, 5] + if bias is None + else [6, 0, 3, 1, 2, 4, 5], + ) + if len(choices) == 0 or use_aten_gemm_kernels(): + kwargs = dict( + output_scale=o_scale, + output_zero_point=o_zero_point, + output_dtype=output_dtype, + post_op_name=attr, + post_op_args=scalars, + post_op_algorithm=algorithm, + ) + if bias is None: + kwargs["bias"] = None + choices.append( + aten_mkldnn_qlinear_unary.bind( + (x, x_scale, x_zp, packed_weight, w_scale, w_zp) + if bias is None + else (x, x_scale, x_zp, packed_weight, w_scale, w_zp, bias), + layout, + **kwargs, + ) + ) + assert packed_weight.get_name() in V.graph.constants + input_gen_fns = { + 3: lambda x: V.graph.constants[x.get_name()], # packed weight + 4: lambda x: V.graph.constants[x.get_name()], # weight scale + 5: lambda x: V.graph.constants[x.get_name()], # weight zp + 6: lambda x: V.graph.constants[x.get_name()], # bias + } + if isinstance( + ir.InputsKernel.unwrap_storage_for_input(x_scale), + ir.ConstantBuffer, + ): + # x is statically quantized + input_gen_fns[1] = lambda x: V.graph.constants[x.get_name()] + if isinstance( + ir.InputsKernel.unwrap_storage_for_input(x_zp), + ir.ConstantBuffer, + ): + input_gen_fns[2] = lambda x: V.graph.constants[x.get_name()] + + result = autotune_select_algorithm( + "qlinear_unary", + choices, + [x, x_scale, x_zp, packed_weight, w_scale, w_zp] + if bias is None + else [x, x_scale, x_zp, packed_weight, w_scale, w_zp, bias], + layout, + input_gen_fns=input_gen_fns, + ) + if len(x_size) > 2: + result = view(result, (*x_size[:-1], result.get_size()[-1])) + return result + + @register_lowering( + torch.ops.onednn.qlinear_pointwise.binary, type_promotion_kind=None + ) + @register_lowering( + torch.ops.onednn.qlinear_pointwise.binary_tensor, type_promotion_kind=None + ) + def qlinear_binary( + x: TensorBox, + x_scale, + x_zp, + packed_weight: TensorBox, + w_scale: TensorBox, + w_zp: TensorBox, + x2: TensorBox, + bias: TensorBox, + o_scale, + o_zero_point, + output_dtype, + x2_scale, + x2_zp, + binary_attr, + alpha, + unary_attr, + unary_scalars, + unary_algorithmm, + layout=None, + ): + x_size = x.get_size() + x2_size = x2.get_size() + assert len(x_size) == len(x2_size) + if len(x_size) > 2 and binary_attr in ["add", "sum"]: + # GEMM template needs 2D input, normalize input shape here + x = view(x, [-1, x_size[-1]]) + x2 = view(x2, [-1, x2_size[-1]]) + if not isinstance(x_scale, ir.TensorBox): + assert type(x_scale) is float + x_scale = V.graph.add_tensor_constant( + torch.tensor(x_scale, dtype=torch.float32), name="x_scale" + ) + else: + x_scale.realize() + if all(dim == 1 for dim in x_scale.get_size()): + # Corner-case discovered with LLaMA series. + # If all outer dims of x_scale are 1, make it a 0D tensor. + # Otherwise, epilogue creator will run into indexing issues. + x_scale = view(x_scale, []) + assert len(x_scale.get_size()) in [0, 1], "x_scale must be 0D or 1D" + + if x_zp is None: + x_zp = V.graph.add_tensor_constant( + torch.tensor(0, dtype=torch.int32), name="x_zp" + ) + + if w_zp is None: + # pyrefly: ignore [bad-assignment] + w_zp = V.graph.add_tensor_constant( + torch.tensor(0, dtype=torch.int32), name="w_zp" + ) + + if not isinstance(x_zp, ir.TensorBox): + assert type(x_zp) is int + x_zp = V.graph.add_tensor_constant( + torch.tensor(x_zp, dtype=torch.int32), name="x_zp" + ) + else: + x_zp.realize() + + # When channels less than 8, w_scale/w_zp is Pointwise instead of ConstantBuffer + # Refer to + # https://github.com/pytorch/pytorch/blob/f353d17755ed23b02924c962a86ff99a3405fe10/torch/_inductor/graph.py#L570-L577 # noqa: B950 + w_scale.realize() + w_zp.realize() + if w_zp.get_dtype() != torch.int32 and isinstance( + ir.InputsKernel.unwrap_storage_for_input(w_zp), + ir.ConstantBuffer, + ): + w_zp_tensor = V.graph.constants[w_zp.get_name()].to(torch.int32) + w_zp = V.graph.add_tensor_constant( # type: ignore[assignment] + torch.tensor(w_zp_tensor, dtype=torch.int32), name=w_zp.get_name() + ) + if binary_attr == "sum": + if output_dtype in [ + torch.float32, + torch.bfloat16, + ] and x2.get_dtype() in [torch.float32, torch.bfloat16]: + if x2.get_dtype() != output_dtype: + # For int8-mixed-bf16 quantization and inplace add, + # there is case when accum dtype is float32 but output dtype is bfloat16. + # Since the accum will be inplaced changed with post op sum, + # we will do accum dtype conversion here. + x2 = to_dtype(x2, output_dtype) + else: + assert x2.get_dtype() == output_dtype, ( + "dtype of accum for qlinear post op sum should be the same as output" + ) + x2_dtype = x2.get_dtype() + bias_dtype = bias.get_dtype() if bias is not None else None + choices: list[ChoiceCaller] = [] + if (config.max_autotune or config.max_autotune_gemm) and binary_attr in [ + "add", + "sum", + ]: + *_, layout, x, packed_weight, x2 = mm_args( + x, packed_weight, x2, layout=layout, out_dtype=output_dtype + ) + if ( + isinstance( + ir.InputsKernel.unwrap_storage_for_input(x_zp), + ir.ConstantBuffer, + ) + and len(x_zp.get_layout().size) == 0 # Per tensor quant of act + and isinstance( + ir.InputsKernel.unwrap_storage_for_input(w_zp), + ir.ConstantBuffer, + ) + and torch.equal( + torch.zeros_like(V.graph.constants[w_zp.get_name()]), + V.graph.constants[w_zp.get_name()], + ) # We only compensate MatrixB and assume B_zp is 0 to avoid the compensation of MatrixA + and use_cpp_gemm_template(layout, x, packed_weight) + ): + W_tensor = V.graph.constants[packed_weight.get_name()] + W_tensor = W_tensor.to_dense() + ( + use_int8_fast_compensation_path, + weight_compens, + x_w_scale, + ) = create_int8_compensation( + W_tensor, + packed_weight, + # pyrefly: ignore [bad-argument-type] + x_scale, + # pyrefly: ignore [bad-argument-type] + x_zp, + w_scale, + ) + + def epilogue_creator(input_buffer): + # Epilogue to convert from s32 to f32 for u8s8f32 + assert output_dtype in [ + torch.float32, + torch.bfloat16, + torch.uint8, + torch.int8, + ] + + input_loader = input_buffer.make_loader() + x2_loader = x2.make_loader() + weight_compens_loader = weight_compens.make_loader() + x_w_scale_loader = None + if use_int8_fast_compensation_path: + assert x_w_scale is not None + x_w_scale_loader = x_w_scale.make_loader() + x_scale_loader = x_scale.make_loader() + w_scale_loader = w_scale.make_loader() + x_zp_loader = x_zp.make_loader() + nonlocal bias + bias_loader = None + if bias is not None: + bias_loader = bias.make_loader() + + def inner_fn(index): + nonlocal bias + input = input_loader(index) + _x2 = x2_loader(index) + _x_scale = None + _x_zp = None + _w_scale = None + weight_compens_index = (index[-1],) + if not use_int8_fast_compensation_path: + _x_scale = x_scale_loader(()) + _x_zp = x_zp_loader(()) + _w_scale = w_scale_loader(weight_compens_index) + # MicroKernel Output is with int32: cvt to FP32 before doing compensation + input = ops.to_dtype(input, torch.float32) + _weight_compo = weight_compens_loader(weight_compens_index) + _x_w_scale = None + if use_int8_fast_compensation_path: + assert x_w_scale_loader is not None + _x_w_scale = x_w_scale_loader(weight_compens_index) + # Step 1: Doing compensation to cvt fp32 + temp = codegen_int8_gemm_template_compensation( + use_int8_fast_compensation_path, + input, + _weight_compo, + _x_scale, + _x_zp, + _w_scale, + _x_w_scale, + ) + # Step 2: add Bias if applicable + if bias is not None: + # pyrefly: ignore [not-callable] + _bias = bias_loader(weight_compens_index) + nonlocal bias_dtype + assert bias_dtype in [torch.float32, torch.bfloat16] + if bias_dtype == torch.bfloat16: + _bias = ops.to_dtype(_bias, torch.float32) + temp = ops.add(temp, _bias) + + # Step 3: Binary add + nonlocal x2_dtype + assert x2_dtype in [torch.float32, torch.bfloat16] + if x2_dtype == torch.bfloat16: + _x2 = ops.to_dtype(_x2, torch.float32) + temp = ops.add(temp, _x2) + + return temp + + output_buf = ir.Pointwise( + device=input_buffer.get_device(), + dtype=torch.float32, # Hardcode to FP32 for u8s8f32 + inner_fn=inner_fn, + ranges=input_buffer.get_size(), + ) + + # Step 4: Unary post op if has + if unary_attr != "none": + output_buf = create_epilogue_with_attr( + output_buf, + unary_attr, + scalars=unary_scalars, + algorithm=unary_algorithmm, + ) + + # Step 5: Cast output to Target Dtype + if output_dtype == torch.bfloat16: + output_cast_loader = output_buf.make_loader() + + def inner_fn_cast_output_to_bf16(index): + input = output_cast_loader(index) + return ops.to_dtype(input, output_dtype) + + output_buf = ir.Pointwise( + device=output_buf.get_device_or_error(), + dtype=output_dtype, + inner_fn=inner_fn_cast_output_to_bf16, + ranges=output_buf.get_size(), + ) + elif output_dtype in [torch.uint8, torch.int8]: + from .lowering import _create_constants + + requant_input_loader = output_buf.make_loader() + + def inner_fn_requant(index, scale, zero_point): + input = requant_input_loader(index) + inv_scale, zero_point = _create_constants( + 1.0 / scale, zero_point, dtype=torch.float32 + ) + val = ops.round(input * inv_scale) + zero_point + if output_dtype == torch.uint8: + qmin, qmax = _create_constants( + 0, 255, dtype=torch.float32 + ) + else: + qmin, qmax = _create_constants( + -128, 127, dtype=torch.float32 + ) + clamped = ops.minimum(ops.maximum(val, qmin), qmax) + return ops.to_dtype(clamped, torch.uint8) + + output_buf = ir.Pointwise( + device=output_buf.get_device_or_error(), + dtype=torch.uint8, + inner_fn=functools.partial( + inner_fn_requant, + scale=float(o_scale), + zero_point=int(o_zero_point), + ), + ranges=output_buf.get_size(), + ) + + return output_buf + + CppGemmTemplate.add_choices( + choices, + layout, + [x, x_scale, x_zp, packed_weight, w_scale, w_zp, x2] + if bias is None + else [x, x_scale, x_zp, packed_weight, w_scale, w_zp, x2, bias], + has_bias=bias is not None, + epilogue_creator=epilogue_creator, + # Reorder bias and x2 + input_indices=[0, 3, 1, 2, 4, 5, 6] + if bias is None + else [7, 0, 3, 1, 2, 4, 5, 6], + ) + + if len(choices) == 0 or use_aten_gemm_kernels(): + kwargs = dict( + output_scale=o_scale, + output_zero_point=o_zero_point, + output_dtype=output_dtype, + other_scale=x2_scale, + other_zp=x2_zp, + binary_post_op=binary_attr, + binary_alpha=alpha, + unary_post_op=unary_attr, + unary_post_op_args=unary_scalars, + unary_post_op_algorithm=unary_algorithmm, + ) + if bias is None: + kwargs["bias"] = None + choices.append( + aten_mkldnn_qlinear_binary.bind( + (x, x_scale, x_zp, packed_weight, w_scale, w_zp, x2) + if bias is None + else (x, x_scale, x_zp, packed_weight, w_scale, w_zp, x2, bias), + layout, + **kwargs, + ) + ) + assert packed_weight.get_name() in V.graph.constants + input_gen_fns = { + 3: lambda x: V.graph.constants[x.get_name()], + 4: lambda x: V.graph.constants[x.get_name()], + 5: lambda x: V.graph.constants[x.get_name()], + } + if bias is not None: + input_gen_fns[7] = lambda x: V.graph.constants[x.get_name()] # For bias + result = autotune_select_algorithm( + "qlinear_binary", + choices, + [x, x_scale, x_zp, packed_weight, w_scale, w_zp, x2] + if bias is None + else [x, x_scale, x_zp, packed_weight, w_scale, w_zp, x2, bias], + layout, + input_gen_fns=input_gen_fns, + ) + if ( + isinstance(result.data.data, ir.CppTemplateBuffer) + and binary_attr == "sum" + and result.data.data.layout == x2.get_layout() + ): + # In this case, since x2 is inplace updated when binary_attr is "sum" + # we update the layout of result to view of x2 + result = ir.TensorBox.create( + ir.CppTemplateBuffer( + layout=ir.NonOwningLayout( + ir.ReinterpretView(data=x2, layout=x2.get_layout()) + ), + inputs=result.data.data.inputs, # type: ignore[arg-type] + make_kernel_render=result.data.data.make_kernel_render, # type: ignore[arg-type] + template=result.data.data.template, + choice=result.data.data.choice, + ) + ) + if len(x_size) > 2 and binary_attr in ["add", "sum"]: + result = view(result, (*x_size[:-1], result.get_size()[-1])) # type: ignore[arg-type] + return result + + if torch._C.has_mkl: + aten_mkl_linear = ExternKernelChoice( + torch.ops.mkl._mkl_linear, + "mkl::_mkl_linear", + has_out_variant=False, + kernel_creator=mkldnn_ir.MKLPackedLinear.create, + ) + cpu_needs_realized_inputs.append(torch.ops.mkl._mkl_linear) + + @register_lowering(torch.ops.mkl._mkl_linear) + def mkl_packed_linear( + x: TensorBox, + packed_w: TensorBox, + orig_w: TensorBox, + b: Optional[TensorBox], + batch_size, + *, + layout=None, + ): + choices: list[ChoiceCaller] = [] + if config.max_autotune or config.max_autotune_gemm: + transposed_w = permute(orig_w, [1, 0]) + *_, layout, x, transposed_w = mm_args( + x, transposed_w, layout=layout + ) + if use_cpp_gemm_template(layout, x, transposed_w): + CppGemmTemplate.add_choices( + choices, + layout, + [x, packed_w, orig_w], + trans_w=True, + input_indices=[0, 2], + ) + + if len(choices) == 0 or use_aten_gemm_kernels(): + choices.append( + aten_mkl_linear.bind( + (x, packed_w, orig_w), layout, B=None, batch_size=batch_size + ) + ) + + assert packed_w.get_name() in V.graph.constants + assert orig_w.get_name() in V.graph.constants + # packed_w is a mkldnn tensor which we can't generate directly + # so we use the weights from the original tensor in autotune. + input_gen_fns = { + 1: lambda x: V.graph.constants[x.get_name()], + 2: lambda x: V.graph.constants[x.get_name()], + } + result: TensorBox = autotune_select_algorithm( + "packed_linear", + choices, + [x, packed_w, orig_w], + layout, + input_gen_fns=input_gen_fns, + ) + if b is not None: + result = add(result, b) + return result + + add_needs_realized_inputs(cpu_needs_realized_inputs) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/mock_cache.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/mock_cache.py new file mode 100644 index 0000000000000000000000000000000000000000..3d9c58f1db8bd9b4ed523a22d4ea6dfc7208a756 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/mock_cache.py @@ -0,0 +1,274 @@ +# mypy: ignore-errors + +from __future__ import annotations + +import contextlib +import dataclasses +import sys +import threading +from typing import Any, Optional, TYPE_CHECKING +from typing_extensions import override, Self +from unittest.mock import patch + +from torch._inductor import config +from torch._inductor.remote_cache import RemoteCacheBackend + + +if TYPE_CHECKING: + from collections.abc import Callable + from types import TracebackType + + +@dataclasses.dataclass +class Stats: + num_put: int = 0 + num_get_hit: int = 0 + num_get_miss: int = 0 + + def __iadd__(self, other: Stats) -> Self: + self.num_put += other.num_put + self.num_get_hit += other.num_get_hit + self.num_get_miss += other.num_get_miss + return self + + def reset(self) -> None: + self.num_put = 0 + self.num_get_hit = 0 + self.num_get_miss = 0 + + def __str__(self) -> str: + return "".join( + ( + f"puts: {self.num_put}, ", + f"misses: {self.num_get_miss}, ", + f"hits: {self.num_get_hit}, ", + ) + ) + + def __eq__(self, other: object) -> bool: + # Dataclass's default __eq__ checks that the types are the same so can't + # be used with _GlobalItemStats. + return ( + isinstance(other, (Stats, _GlobalItemStats)) + and self.num_put == other.num_put + and self.num_get_hit == other.num_get_hit + and self.num_get_miss == other.num_get_miss + ) + + +class _GlobalItemStats(Stats): + cache: dict[str, object] + + def __init__(self) -> None: + super().__init__() + self.cache = {} + + def reset(self) -> None: + super().reset() + self.cache = {} + + +# The cache states are thread-local so if we're running multiple tests at once +# they won't cross contaminate. However - it needs to be "global" because we +# allow code to create new cache clients which refer to the same cache (because +# it's a remote cache). + + +class _GlobalStats(threading.local): + def __init__(self) -> None: + self.autotune_local = _GlobalItemStats() + self.autotune_remote = _GlobalItemStats() + self.bundled_autotune = _GlobalItemStats() + self.fx_graph = _GlobalItemStats() + self.triton = _GlobalItemStats() + self.aot_autograd = _GlobalItemStats() + self.dynamo_pgo = _GlobalItemStats() + + def reset(self) -> None: + self.autotune_local.reset() + self.autotune_remote.reset() + self.bundled_autotune.reset() + self.fx_graph.reset() + self.triton.reset() + self.aot_autograd.reset() + self.dynamo_pgo.reset() + + def get_stat(self, name: str) -> _GlobalItemStats: + return getattr(self, name) + + def report(self): + subs = ( + ("autotune_local", self.autotune_local), + ("autotune_remote", self.autotune_remote), + ("bundled_autotune", self.bundled_autotune), + ("fx_graph", self.fx_graph), + ("triton", self.triton), + ("aot_autograd", self.aot_autograd), + ("dynamo_pgo", self.dynamo_pgo), + ) + + print("Cache Stats:", file=sys.stderr) + for name, sub in subs: + print(f" {name}: {sub}", file=sys.stderr) + + print("Cache Entries:", file=sys.stderr) + for name, sub in subs: + if sub.cache: + print(f" {name}:", file=sys.stderr) + for k, v in sorted(sub.cache.items()): + v = repr(v) + if len(v) > 100: + v = v[:100] + "..." + print(f" {k!r}: {v}", file=sys.stderr) + + +global_stats = _GlobalStats() + + +class MockBackend(RemoteCacheBackend[Any]): + def __init__(self, name: str) -> None: + self._name = name + + @staticmethod + def with_name(name: str) -> Callable[[], MockBackend]: + def wrapper() -> MockBackend: + return MockBackend(name) + + return wrapper + + @override + def _get(self, key: str) -> Optional[Any]: + stat = global_stats.get_stat(self._name) + if key in stat.cache: + stat += Stats(num_get_hit=1) + return stat.cache.get(key) + else: + stat += Stats(num_get_miss=1) + return None + + @override + def _put(self, key: str, data: Any) -> None: + stat = global_stats.get_stat(self._name) + stat += Stats(num_put=1) + stat.cache[key] = data + + +# List of configs for each cache +_CACHE_CONFIG_EN = ( + "fx_graph_cache", + "fx_graph_remote_cache", + "autotune_local_cache", + "autotune_remote_cache", + "bundled_autotune_remote_cache", +) + + +class PatchCaches(contextlib.AbstractContextManager): + @classmethod + def setUp(cls): + # If this test is using PatchCaches then disable all the caches by + # default, letting the tests turn them on explicitly. This is because + # tests using PatchCaches will often want to check stats explicitly. + cls._savedCacheState = {} + for name in _CACHE_CONFIG_EN: + if hasattr(config, name): + cls._savedCacheState[name] = getattr(config, name) + setattr(config, name, False) + + @classmethod + def tearDown(cls): + # Restore cache defaults + for name in _CACHE_CONFIG_EN: + delattr(config, name) + if name in cls._savedCacheState: + setattr(config, name, cls._savedCacheState[name]) + + def __init__(self) -> None: + self._stack = contextlib.ExitStack() + + def __enter__(self) -> Self: + global_stats.reset() + self._stack.__enter__() + + ctx = patch( + "torch._inductor.runtime.autotune_cache.LocalAutotuneCache.backend_override_cls", + MockBackend.with_name("autotune_local"), + ) + self._stack.enter_context(ctx) + + ctx = patch( + "torch._inductor.remote_cache.RemoteAutotuneCache.backend_override_cls", + MockBackend.with_name("autotune_remote"), + ) + self._stack.enter_context(ctx) + + ctx = patch( + "torch._inductor.remote_cache.RemoteBundledAutotuneCache.backend_override_cls", + MockBackend.with_name("bundled_autotune"), + ) + self._stack.enter_context(ctx) + + ctx = patch( + "torch._inductor.remote_cache.RemoteFxGraphCache.backend_override_cls", + MockBackend.with_name("fx_graph"), + ) + self._stack.enter_context(ctx) + + ctx = patch( + "torch._inductor.remote_cache.RemoteAOTAutogradCache.backend_override_cls", + MockBackend.with_name("aot_autograd"), + ) + self._stack.enter_context(ctx) + + ctx = patch( + "torch._inductor.remote_cache.RemoteDynamoPGOCache.backend_override_cls", + MockBackend.with_name("dynamo_pgo"), + ) + self._stack.enter_context(ctx) + + if config.is_fbcode(): + ctx = patch( + "torch._inductor.fb.remote_cache.FbRemoteAutotuneCache.backend_override_cls", + MockBackend.with_name("autotune_remote"), + ) + self._stack.enter_context(ctx) + + ctx = patch( + "torch._inductor.fb.remote_cache.FbRemoteBundledAutotuneCache.backend_override_cls", + MockBackend.with_name("bundled_autotune"), + ) + self._stack.enter_context(ctx) + + ctx = patch( + "torch._inductor.fb.remote_cache.FbRemoteFxGraphCache.backend_override_cls", + MockBackend.with_name("fx_graph"), + ) + self._stack.enter_context(ctx) + + ctx = patch( + "triton.fb.fb_memcache.FbMemcacheRemoteKernelCache.backend_override_cls", + MockBackend.with_name("triton"), + ) + self._stack.enter_context(ctx) + + ctx = patch( + "torch._inductor.fb.remote_cache.FbRemoteAOTAutogradCache.backend_override_cls", + MockBackend.with_name("aot_autograd"), + ) + self._stack.enter_context(ctx) + + ctx = patch( + "torch._inductor.fb.remote_cache.FbRemoteDynamoPGOCache.backend_override_cls", + MockBackend.with_name("dynamo_pgo"), + ) + self._stack.enter_context(ctx) + + return self + + def __exit__( + self, + exc_type: Optional[type[BaseException]], + exc_value: Optional[BaseException], + traceback: Optional[TracebackType], + ) -> None: + self._stack.__exit__(exc_type, exc_value, traceback) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/ops_handler.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/ops_handler.py new file mode 100644 index 0000000000000000000000000000000000000000..725abe260598d63aa5e053e1bcdb36bdbe74d975 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/ops_handler.py @@ -0,0 +1,1183 @@ +# mypy: allow-untyped-defs +from __future__ import annotations + +import inspect +import itertools +import re +import warnings +from io import StringIO +from typing import ( + Any, + Generic, + Literal, + NamedTuple, + Optional, + TYPE_CHECKING, + TypeVar, + Union, +) +from unittest.mock import patch + +import sympy + +import torch +import torch.utils._pytree as pytree + +from ..utils._ordered_set import OrderedSet +from .utils import IndentedBuffer, reduction_num_outputs, sympy_index_symbol, sympy_str + + +if TYPE_CHECKING: + from collections.abc import Callable + + +T = TypeVar("T") +StoreMode = Optional[Literal["atomic_add", "tma"]] +ReductionType = Literal[ + "argmax", + "argmin", + "welford_reduce", + "welford_combine", + "any", + "max", + "min", + "prod", + "sum", + "dot", + "xor_sum", + "online_softmax_reduce", +] + + +def _arg_str(a: object) -> str: + if isinstance(a, sympy.Expr): + return sympy_str(a) + return str(a) + + +# See OpDecompositions for superclass that desugars operations like reciprocal/square. +class OpsHandler(Generic[T]): + """ + Protocol describing the set of valid operations on ``torch._inductor.virtualized.ops``, + as well as the contract for op handlers. The type T signifies the domain + of the abstract analysis AKA what all the functions return / take as arguments + anywhere compute occurs. + + While these operators are typically dtype polymorphic (e.g., you can use mul + on both integers and floats), they do NOT do promotion and usually return the + same dtype as the input. You are expected to have handled type promotion + during ATen decompositions. Most operators correspond exactly to pointwise + operations as defined by torch, so when in doubt about semantics, check the + corresponding torch documentation. These are all scalar operations (so they + are defined to operate on a single element at a time.) + + For convenience, many operators take a src_dtype which indicates what the dtype + of the input argument is. Although in principle this can be derived by an + analysis, providing this for ops where it is useful helps avoid having to repeatedly + recompute dtype in code generation. + + Note that this often describes a class of static methods, for stateless + ops handlers. + + Handlers are often defined using metaprogramming (e.g. _initialize_pointwise_overrides), + which means you will not get type errors for those methods. We have tests in + test/inductor/test_op_completeness.py which check that all operators are implemented after + all the metaprogramming has run. + """ + + def constant(self, value: Union[bool, float, int], dtype: torch.dtype) -> T: + """Produces a scalar constant of type dtype.""" + raise NotImplementedError + + def load_seed(self, name: str, offset: T) -> T: + """Computes inductor_prims.lookup_seed.""" + raise NotImplementedError + + def rand(self, seed: T, offset: T) -> T: + """Computes inductor_prims.random with mode="rand". offset has dtype int32.""" + raise NotImplementedError + + def randn(self, seed: T, offset: T) -> T: + """Computes inductor_prims.random with mode="randn". offset has dtype int32.""" + raise NotImplementedError + + def randint64(self, seed: T, offset: T, low: T, high: T) -> T: + """Computes inductor_prims.randint. offset has dtype int32.""" + raise NotImplementedError + + def masked(self, mask: T, body: Callable[[], T], other: T) -> T: + """ + Computes body, but only perform loads/stores if the boolean mask + evaluates to true. For example, you would use this if you needed to + perform an indirect load that may not be valid on some elements; + without masking, invalid accesses can cause IMAs. When mask is true, + the result is the result of body; otherwise it is other. Here, `other` + needs to be a constant. + + Contrast this with ops.where, which can multiplex between two values + that have been unconditionally computed. + """ + raise NotImplementedError + + def where(self, condition: T, input: T, other: T) -> T: + """ + Computes torch.where: when condition is true, return input; otherwise return other. + """ + raise NotImplementedError + + def index_expr(self, expr: sympy.Expr, dtype: torch.dtype) -> T: + """ + Converts a sympy expression into a scalar of type dtype. expr is typically + an indexing expression, thus the name; however, it can also be used in + non-indexing situations. + """ + raise NotImplementedError + + def to_dtype( + self, + x: T, + dtype: torch.dtype, + src_dtype: Optional[torch.dtype] = None, + use_compute_types: bool = True, + ) -> T: + """ + Convert x to dtype. src_dtype can be optionally set to specify what the original + dtype of x was, which can improve code generation (used by torch to(dtype=dtype)). + """ + raise NotImplementedError + + def trunc_to_int(self, x: T, dtype: torch.dtype) -> T: + """ + Convert x to dtype with truncation semantics (similar to how the int + constructor works in Python). In Inductor codegen, this just decays + to trunc and then to_dtype, but this composite operation helps + roundtrips for Sympy evaluation. + + dtype is taken as an explicit parameter because the desired output + dtype is typically the index dtype, which may vary between int32 and + int64 depending on if we've shown that all the indexing operations can + be done in int32. + """ + raise NotImplementedError + + def ceil_to_int(self, x: T, dtype: torch.dtype) -> T: + """ + Convert x to dtype with ceiling semantics. See also trunc_to_int. + """ + raise NotImplementedError + + def floor_to_int(self, x: T, dtype: torch.dtype) -> T: + """ + Convert x to dtype with ceiling semantics. See also trunc_to_int. + """ + raise NotImplementedError + + def round_to_int(self, x: T, dtype: torch.dtype) -> T: + """ + Convert x to dtype with round-to-even semantics. See also trunc_to_int. + """ + raise NotImplementedError + + def to_dtype_bitcast(self, x: T, dtype: torch.dtype, src_dtype: torch.dtype) -> T: + """ + Reinterpret cast x to dtype (reinterpreting the bits in memory as another dtype.) + src_dtype must be the original type of x. + """ + raise NotImplementedError + + def identity(self, x: T) -> T: + """ + Returns x as is. This is used to trigger CSE. + """ + raise NotImplementedError + + # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + # These operations are only available in a "kernel" context. Check + # torch._inductor.codegen.common.CSEProxy for their typical implementation + # in op handler (routing to their respective implementations in the kernel + # handler) + # + # Importantly, inside a kernel, indexing and mask variables are available + # in scope, which are typically used by sympy.Expr indexing. + + def indirect_indexing( + self, x: T, size: sympy.Expr, check: bool = True, wrap_neg=True + ) -> sympy.Expr: + """ + Convert an integral x into a sympy.Expr that can be subsequently used in + indexing computation. 'size' represents an upper bound on what valid + indexes can be; when 'check' is True, we check that the x is in bounds. + + NB: This is typically mandatory to implement for any analysis, because you + MUST return a valid sympy.Expr of some sort (even if it's a meaningless symbol). + """ + raise NotImplementedError + + def load(self, name: str, index: sympy.Expr) -> T: + """ + Load from the memory location 'name', offset by some indexing expression 'index'. + """ + raise NotImplementedError + + def store( + self, + name: str, + index: sympy.Expr, + value: T, + mode: StoreMode = None, + ) -> None: + """ + Store 'value' to the memory location 'name' offset by 'expr'. If + specified, 'mode' can require the store to be an atomic addition. + """ + raise NotImplementedError + + # TODO: Better explain how the "collective" semantics of these ops; + # remember that the input value is a scalar, you can't reduce on it in the + # traditional sense! + def reduction( + self, + dtype: torch.dtype, + src_dtype: torch.dtype, + reduction_type: ReductionType, + value: T, + ) -> Union[T, tuple[T, ...]]: + """ + Perform a 'reduction_type' reduction on 'value' of dtype 'src_dtype', + using 'dtype' as the accumulation dtype for the reduction. The result + is an intermediate computation which should be stored to the final + location using 'ops.store_reduction'. + + Valid reduction types are . For Welford reduction types, this + function returns multiple outputs; consult reduction_num_outputs to + determine the amount in metaprogramming applications. + """ + raise NotImplementedError + + # TODO: in practice, this seems to actually return None, but not returning + # a T makes common __getattr__ idioms not type correctly. Figure out if + # this should be returning something. + def store_reduction(self, name: str, index: sympy.Expr, value: T) -> None: + """ + Store the fully accumulated result of 'reduction' to the memory + location 'name' offset by 'expr'. + """ + raise NotImplementedError + + def scan( + self, + dtypes: tuple[torch.dtype, ...], + combine_fn: Callable[[tuple[T, ...], tuple[T, ...]], tuple[T, ...]], + values: tuple[T, ...], + ) -> tuple[T, ...]: + """ + Perform an associative scan on 'value'. + """ + # TODO: Improve the description with some pseudocode + raise NotImplementedError + + def sort( + self, + dtypes: tuple[torch.dtype, ...], + values: tuple[T, ...], + stable: bool, + descending: bool, + ) -> tuple[T, ...]: + """ + Sort values along the reduction dimension. + """ + raise NotImplementedError + + def bucketize( + self, + values: T, + boundaries: tuple[str, sympy.Expr, sympy.Expr, sympy.Expr], + boundary_indices: T, + indexing_dtype: torch.dtype, + right: bool, + sorter: Optional[tuple[str, sympy.Expr]] = None, + sorter_indices: Optional[T] = None, + ) -> T: + # See [Note: Inductor bucketize op] + raise NotImplementedError + + def partial_accumulate( + self, + name: str, + reduction_type: ReductionType, + value: T, + extra_meta: dict[str, Any], + ) -> None: + raise NotImplementedError + + # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + # The following ops have semantics that correspond exactly to the torch + # operation with the same corresponding name. + + def abs(self, x0: T) -> T: + raise NotImplementedError + + def exp(self, x0: T) -> T: + raise NotImplementedError + + def exp2(self, x0: T) -> T: + raise NotImplementedError + + def expm1(self, x0: T) -> T: + raise NotImplementedError + + def sqrt(self, x0: T) -> T: + raise NotImplementedError + + def relu(self, x0: T) -> T: + raise NotImplementedError + + def minimum(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def maximum(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def cos(self, x0: T) -> T: + raise NotImplementedError + + def sin(self, x0: T) -> T: + raise NotImplementedError + + def lgamma(self, x0: T) -> T: + raise NotImplementedError + + def erf(self, x0: T) -> T: + raise NotImplementedError + + def cosh(self, x0: T) -> T: + raise NotImplementedError + + def sinh(self, x0: T) -> T: + raise NotImplementedError + + def acos(self, x0: T) -> T: + raise NotImplementedError + + def acosh(self, x0: T) -> T: + raise NotImplementedError + + def asin(self, x0: T) -> T: + raise NotImplementedError + + def asinh(self, x0: T) -> T: + raise NotImplementedError + + def atan2(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def atan(self, x0: T) -> T: + raise NotImplementedError + + def atanh(self, x0: T) -> T: + raise NotImplementedError + + def copysign(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def erfc(self, x0: T) -> T: + raise NotImplementedError + + def erfinv(self, x0: T) -> T: + raise NotImplementedError + + def frexp(self, x0: T): + raise NotImplementedError + + def hypot(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def log10(self, x0: T) -> T: + raise NotImplementedError + + def log2(self, x0: T) -> T: + raise NotImplementedError + + def nextafter(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def logical_and(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def logical_not(self, x0: T) -> T: + raise NotImplementedError + + def logical_or(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def logical_xor(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def bitwise_and(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def bitwise_not(self, x0: T) -> T: + raise NotImplementedError + + def bitwise_or(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def bitwise_xor(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def bitwise_left_shift(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def bitwise_right_shift(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def rsqrt(self, x0: T) -> T: + raise NotImplementedError + + def log1p(self, x0: T) -> T: + raise NotImplementedError + + def tan(self, x0: T) -> T: + raise NotImplementedError + + def tanh(self, x0: T) -> T: + raise NotImplementedError + + def sigmoid(self, x0: T) -> T: + raise NotImplementedError + + def signbit(self, x0: T) -> T: + raise NotImplementedError + + def fmod(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def log(self, x0: T) -> T: + raise NotImplementedError + + def isinf(self, x0: T) -> T: + raise NotImplementedError + + def isnan(self, x0: T) -> T: + raise NotImplementedError + + # NB: this returns a float, like the torch operation + # This rounds half to even to break ties + def round(self, x0: T) -> T: + raise NotImplementedError + + # NB: this returns a float, like the torch operation + def floor(self, x0: T) -> T: + raise NotImplementedError + + def sign(self, x0: T) -> T: + raise NotImplementedError + + # NB: this returns a float, like the torch operation + def trunc(self, x0: T) -> T: + raise NotImplementedError + + # NB: this returns a float, like the torch operation + def ceil(self, x0: T) -> T: + raise NotImplementedError + + def neg(self, x0: T) -> T: + raise NotImplementedError + + def reciprocal(self, x0: T) -> T: + raise NotImplementedError + + def eq(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def ne(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def lt(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def gt(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def le(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def ge(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def add(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def sub(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def mul(self, x0: T, x1: T) -> T: + raise NotImplementedError + + # NB: this returns a float, like the torch operation + def pow(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def and_(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def or_(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def xor(self, x0: T, x1: T) -> T: + raise NotImplementedError + + # These are metaprogrammed by MockHandler._init_cls + def lshift(self, x0: T, x1: T) -> T: + raise NotImplementedError + + def rshift(self, x0: T, x1: T) -> T: + raise NotImplementedError + + # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + # These are "special" operators. These only exist if the target + # language actually supports the operator. Keep this in sync with + # pointwise_overrides_data. + + def airy_ai(self, x: T) -> T: + raise NotImplementedError + + def bessel_j0(self, x: T) -> T: + raise NotImplementedError + + def bessel_j1(self, x: T) -> T: + raise NotImplementedError + + def bessel_y0(self, x: T) -> T: + raise NotImplementedError + + def bessel_y1(self, x: T) -> T: + raise NotImplementedError + + def digamma(self, x: T) -> T: + raise NotImplementedError + + def erfcx(self, x: T) -> T: + raise NotImplementedError + + def fma(self, x: T, y: T, z: T) -> T: + raise NotImplementedError + + def igamma(self, x: T, y: T) -> T: + raise NotImplementedError + + def igammac(self, x: T, y: T) -> T: + raise NotImplementedError + + def gammainc(self, x: T, y: T) -> T: + raise NotImplementedError + + def gammaincc(self, x: T, y: T) -> T: + raise NotImplementedError + + def i0(self, x: T) -> T: + raise NotImplementedError + + def i0e(self, x: T) -> T: + raise NotImplementedError + + def i1(self, x: T) -> T: + raise NotImplementedError + + def i1e(self, x: T) -> T: + raise NotImplementedError + + def log_ndtr(self, x: T) -> T: + raise NotImplementedError + + def modified_bessel_i0(self, x: T) -> T: + raise NotImplementedError + + def modified_bessel_i1(self, x: T) -> T: + raise NotImplementedError + + def modified_bessel_k0(self, x: T) -> T: + raise NotImplementedError + + def modified_bessel_k1(self, x: T) -> T: + raise NotImplementedError + + def ndtr(self, x: T) -> T: + raise NotImplementedError + + def ndtri(self, x: T) -> T: + raise NotImplementedError + + def polygamma(self, x: T, y: T) -> T: + raise NotImplementedError + + def scaled_modified_bessel_k0(self, x: T) -> T: + raise NotImplementedError + + def scaled_modified_bessel_k1(self, x: T) -> T: + raise NotImplementedError + + def spherical_bessel_j0(self, x: T) -> T: + raise NotImplementedError + + def zeta(self, x: T, y: T) -> T: + raise NotImplementedError + + def chebyshev_polynomial_t(self, x: T, y: T) -> T: + raise NotImplementedError + + def chebyshev_polynomial_u(self, x: T, y: T) -> T: + raise NotImplementedError + + def chebyshev_polynomial_v(self, x: T, y: T) -> T: + raise NotImplementedError + + def chebyshev_polynomial_w(self, x: T, y: T) -> T: + raise NotImplementedError + + def legendre_polynomial_p(self, x: T, y: T) -> T: + raise NotImplementedError + + def shifted_chebyshev_polynomial_t(self, x: T, y: T) -> T: + raise NotImplementedError + + def shifted_chebyshev_polynomial_u(self, x: T, y: T) -> T: + raise NotImplementedError + + def shifted_chebyshev_polynomial_v(self, x: T, y: T) -> T: + raise NotImplementedError + + def shifted_chebyshev_polynomial_w(self, x: T, y: T) -> T: + raise NotImplementedError + + def hermite_polynomial_h(self, x: T, y: T) -> T: + raise NotImplementedError + + def hermite_polynomial_he(self, x: T, y: T) -> T: + raise NotImplementedError + + def laguerre_polynomial_l(self, x: T, y: T) -> T: + raise NotImplementedError + + # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + # These operators are a bit special, because they are conventionally + # natively supported in both Python and C, but the semantics differ so + # care must be taken + + def truncdiv(self, x0: T, x1: T) -> T: + """C-style trunc division between integers only. Computes the true + division of two numbers and rounds the result to zero. + """ + raise NotImplementedError + + def floordiv(self, x0: T, x1: T) -> T: + """Python-style floor division between integers only. Computes the + true division of two numbers and floors the result. If you want + floor division for floats, do regular truediv and floor the result. + """ + raise NotImplementedError + + def truediv(self, x0: T, x1: T) -> T: + """True division between floats. Integer inputs are NOT valid. To + do Python-style (int, int) -> float division, use int_truediv""" + raise NotImplementedError + + def int_truediv(self, x0: T, x1: T) -> T: + """True division between integers. This is NOT the same as promoting + to float and doing integer division, there is a bespoke algorithm for + doing the division in higher precision than the above. + """ + raise NotImplementedError + + def mod(self, x0: T, x1: T) -> T: + """C-style modulus, take sign from LHS (x0).""" + raise NotImplementedError + + def remainder(self, x0: T, x1: T) -> T: + """Python-style modulus, take sign from RHS (x1).""" + raise NotImplementedError + + def square(self, x0: T) -> T: + raise NotImplementedError + + def check_bounds( + self, expr: sympy.Expr, size: sympy.Expr, lower: bool, upper: bool + ) -> None: + raise NotImplementedError + + # halide-only + def halide_clamp(self, value: T, size: sympy.Expr, check: bool) -> T: + raise NotImplementedError + + # triton-only + def dot(self, x: T, y: T) -> T: + raise NotImplementedError + + # triton-only + def inline_asm_elementwise( + self, + *inputs: T, + asm: str, + constraints: Optional[str] = None, + dtype: torch.dtype = torch.float32, + is_pure: bool = True, + pack: int = 1, + ) -> T: + raise NotImplementedError + + def output(self, *args: T) -> None: + """This is a fake op used in analysis but not codegen""" + raise NotImplementedError + + def placeholder(self, index: int) -> T: + """This is a fake op used in analysis but not codegen""" + raise NotImplementedError + + def device_assert_async(self, cond: T, msg: str) -> T: + raise NotImplementedError + + +_ignore_op_re = re.compile(r"_.*|paren").fullmatch + + +def list_ops(cls: type[Any]): + return OrderedSet([x for x in dir(cls) if not _ignore_op_re(x)]) + + +OP_NAMES = list_ops(OpsHandler) + + +class DefaultHandler(OpsHandler[Any]): + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + """ + Default implementation for all ops. Override in a subclass to + provide generic op behavior. + + Args: + name: name of the op, see OpHandler.{name} + args: positional args passed to the op + kwargs: keyword args passed to the op + + Returns: + return value of the op + + """ + raise NotImplementedError + + def __getattr__(self, name: str) -> Any: + def fallback(*args: Any, **kwargs: Any) -> Any: + return self._default(name, args, kwargs) + + # would like to remove this function entirely, but it's used in MTIA backend + warnings.warn(f"undefined OpHandler.{name}, please add missing op schema") + return fallback + + @staticmethod + def _call_default(target: str): + def call_default(self, *args, **kwargs): + return self._default(target, args, kwargs) + + call_default.__name__ = target + return call_default + + @classmethod + def _init_cls(cls): + """ + Here we codegen many functions of the form: + + def add(self, a, b): + return self._default('add', (a, b), {}) + + and install them in cls. This is the same as _call_default above, + but is about 1.2x faster since CPython varargs parsing is slow. + """ + code = StringIO() + for target in OP_NAMES: + sig = inspect.signature(getattr(OpsHandler, target)) + if all( + p.kind == inspect.Parameter.POSITIONAL_OR_KEYWORD + and p.default is inspect.Parameter.empty + for p in sig.parameters.values() + ): + self_arg, *args = sig.parameters.keys() + assert self_arg == "self" + code.write( + f""" + def {target}(self, {", ".join(args)}): + return self._default({target!r}, ({", ".join(args)}, ), {{}}) + """.strip() + ) + code.write("\n\n") + else: + # slower fallback for ops with default or variadic arguments + setattr(cls, target, cls._call_default(target)) + + ctx: dict[str, Any] = {} + exec(code.getvalue(), ctx) + for target, impl in ctx.items(): + if target in OP_NAMES: + setattr(cls, target, impl) + + +DefaultHandler._init_cls() + + +class NoopHandler(DefaultHandler): + name = "NoopHandler" + + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + return None + + @staticmethod + def masked(mask, body, other) -> None: + return None + + @staticmethod + def frexp(x) -> tuple[None, None]: + return (None, None) + + @staticmethod + def scan(dtypes, combine_fn, values) -> tuple[None, ...]: + return (None,) * len(values) + + @staticmethod + def sort(dtypes, values, stable, descending) -> tuple[None, ...]: + return (None,) * len(values) + + @staticmethod + def indirect_indexing(index_var, size, check=True, wrap_neg=True) -> sympy.Symbol: + return sympy.S.Zero + + +class BasicMathOpsMixin: + @staticmethod + def add(a, b): + return f"{a} + {b}" + + @staticmethod + def sub(a, b): + return f"{a} - {b}" + + @staticmethod + def mul(a, b): + return f"{a} * {b}" + + @staticmethod + def floordiv(a, b): + return f"{a} // {b}" + + @staticmethod + def truediv(a, b): + return f"{a} / {b}" + + @staticmethod + def mod(a, b): + # careful, depending on target semantics varies + return f"{a} % {b}" + + @staticmethod + def pow(a, b): + return f"{a} ** {b}" + + @staticmethod + def lshift(a, b): + return f"{a} << {b}" + + @staticmethod + def rshift(a, b): + return f"{a} >> {b}" + + @staticmethod + def and_(a, b): + return f"{a} & {b}" + + @staticmethod + def or_(a, b): + return f"{a} | {b}" + + @staticmethod + def xor(a, b): + return f"{a} ^ {b}" + + @staticmethod + def eq(a, b): + return f"{a} == {b}" + + @staticmethod + def ne(a, b): + return f"{a} != {b}" + + @staticmethod + def lt(a, b): + return f"{a} < {b}" + + @staticmethod + def gt(a, b): + return f"{a} > {b}" + + @staticmethod + def le(a, b): + return f"{a} <= {b}" + + @staticmethod + def ge(a, b): + return f"{a} >= {b}" + + @staticmethod + def neg(a): + return f"-{a}" + + +class MockHandler(BasicMathOpsMixin, DefaultHandler): + name = "MockHandler" + + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + fargs = [*map(_arg_str, args)] + for k, v in kwargs.items(): + fargs.append(f"{k}={_arg_str(v)}") + return f"ops.{name}({', '.join(fargs)})" + + @staticmethod + def masked(mask, body, other) -> str: + return f"ops.masked({mask}, {body()}, {other})" + + @staticmethod + def frexp(x): + return (f"ops.frexp({x})[0]", f"ops.frexp({x})[1]") + + @staticmethod + def scan(dtypes, combine_fn, values): + return tuple( + f"ops.scan({dtypes}, {combine_fn}, {values})[{i}]" + for i in range(len(values)) + ) + + @staticmethod + def sort(dtypes, values, stable, descending): + return tuple( + f"ops.sort({dtypes}, {values}, stable={stable}, descending={descending})[{i}]" + for i in range(len(values)) + ) + + @staticmethod + def indirect_indexing(index_var, size, check=True, wrap_neg=True) -> sympy.Symbol: + return sympy_index_symbol(str(index_var)) + + +class KernelFormatterHandler(DefaultHandler): + def __init__(self, parent_handler: OpsHandler[Any]): + self.parent_handler = parent_handler + self._output = IndentedBuffer(1) + self.var_counter = itertools.count() + + @staticmethod + def ir_to_string(ir_fn, index, rindex=None) -> str: + from .ir import FlexibleLayout + from .virtualized import V + + args = [index, rindex] if rindex is not None else [index] + names = ["index", "rindex"] if rindex is not None else ["index"] + formatter = KernelFormatterHandler(MockHandler()) + + with formatter._output.indent(-1): + formatter._output.writeline(f"def inner_fn({', '.join(names)}):") + for name, arg in zip(names, args): + if arg: + lhs = ", ".join( + [ + str("_" if isinstance(v, (int, sympy.Integer)) else v) + for v in arg + ] + ) + formatter._output.writeline(f"{lhs} = {name}") + + with ( + V.set_ops_handler(formatter), + patch.object(FlexibleLayout, "allow_indexing", True), + ): + result = ir_fn(*args) + return formatter.getvalue(result) + + def indirect_indexing(self, *args, **kwargs) -> sympy.Symbol: + return self.parent_handler.indirect_indexing(*args, **kwargs) + + def _write(self, line): + # replace line with a new variable name + varname = f"tmp{next(self.var_counter)}" + self._output.writeline(f"{varname} = {line}") + return varname + + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + return pytree.tree_map( + self._write, getattr(self.parent_handler, name)(*args, **kwargs) + ) + + def reduction( + self, + dtype: torch.dtype, + src_dtype: torch.dtype, + reduction_type: ReductionType, + value: Union[str, tuple[str, ...]], + ) -> Union[str, tuple[str, ...]]: + line = self.parent_handler.reduction(dtype, src_dtype, reduction_type, value) + num_values = reduction_num_outputs(reduction_type) + varnames = [f"tmp{next(self.var_counter)}" for _ in range(num_values)] + self._output.writeline(f"{','.join(varnames)} = {line}") + return tuple(varnames) if num_values > 1 else varnames[0] + + def getvalue(self, result): + self._output.writeline(f"return {result}") + return self._output.getvalue() + + +class WrapperHandler(DefaultHandler): + def __init__(self, inner: OpsHandler[Any]): + self._inner = inner + + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + return getattr(self._inner, name)(*args, **kwargs) + + +class AddParenHandler(WrapperHandler): + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + val = getattr(self._inner, name)(*args, **kwargs) + if not val or isinstance(val, (sympy.Expr, tuple, list)): + return val + return f"({val})" + + +class OpCountResult(NamedTuple): + num_ops: int + used_ops: OrderedSet[str] + read_buffers: list[str] + nontrivial_read_count: int + + +class OpCounterCSE(DefaultHandler): + """Shim to count how many ops are used""" + + def __init__(self, inner: OpsHandler[Any]): + super().__init__() + self.parent_handler = inner + self.op_count = 0 + self.var_names: dict[str, str] = {} + self._used_ops: OrderedSet[str] = OrderedSet() + self._read_names: list[str] = [] + self._nontrivial_read_count = 0 + + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + self._used_ops.add(name) + return pytree.tree_map( + self._update_count, getattr(self.parent_handler, name)(*args, **kwargs) + ) + + def _update_count(self, val): + varname = self.var_names.get(val) + if not varname: + varname = f"tmp{self.op_count}" + self.op_count += 1 + self.var_names[val] = varname + return varname + + def indirect_indexing(self, *args, **kwargs): + self._used_ops.add("indirect_indexing") + return self.parent_handler.indirect_indexing(*args, **kwargs) + + def load(self, name: str, index: sympy.Expr) -> str: + val = self.parent_handler.load(name, index) + if val not in self.var_names: + self._used_ops.add("load") + self._read_names.append(name) + if not isinstance(index, (sympy.Integer, int)): + self._nontrivial_read_count += 1 + return self._update_count(val) + + def load_seed(self, name: str, offset: T): + val = self.parent_handler.load_seed(name, offset) + if val not in self.var_names: + self._used_ops.add("load_seed") + self._read_names.append(name) + return self._update_count(val) + + def bucketize( + self, + values: T, + boundaries: tuple[str, sympy.Expr, sympy.Expr, sympy.Expr], + boundary_indices: T, + indexing_dtype: torch.dtype, + right: bool, + sorter: Optional[tuple[str, sympy.Expr]] = None, + sorter_indices: Optional[T] = None, + ) -> T: + """ + See [Note: Inductor bucketize op] + """ + val = self.parent_handler.bucketize( + values, + boundaries, + boundary_indices, + indexing_dtype, + right, + sorter, + sorter_indices, + ) + if val not in self.var_names: + self._used_ops.add("bucketize") + self._read_names.append(boundaries[0]) + if sorter is not None: + self._read_names.append(sorter[0]) + return self._update_count(val) + + def getvalue(self): + return OpCountResult( + self.op_count, self._used_ops, self._read_names, self._nontrivial_read_count + ) + + +class ExtractConstantsHandler(NoopHandler): + def __init__(self, device: Optional[torch.device]): + self.device = device + + def constant(self, value: Any, dtype: torch.dtype) -> torch._inductor.ir.Constant: + from torch._inductor import ir + + return ir.Constant( + value=value, dtype=dtype, device=self.device or torch.get_default_device() + ) + + +class SimpleCSEHandler(WrapperHandler): + """Wraps the underlying handler with a CSE pass + + NOTE: Compared to codegen level CSE this is simplified as it + doesn't support stores which require load cache invalidation. + """ + + def __init__(self, inner: Any): + super().__init__(inner) + self.cse_cache: dict[str, Union[Any, tuple[Any, ...]]] = {} + self.mock = MockHandler() + + def indirect_indexing(self, *args, **kwargs) -> sympy.Expr: + return super().indirect_indexing(*args, **kwargs) # type: ignore[misc] + + def store(self, *args, **kwargs) -> None: + raise NotImplementedError("store not implemented") + + def store_reduction(self, *args, **kwargs) -> None: + raise NotImplementedError("store not implemented") + + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + key = getattr(self.mock, name)(*args, **kwargs) + val = self.cse_cache.get(key) + if val is not None: + return val + + val = getattr(self._inner, name)(*args, **kwargs) + self.cse_cache[key] = val + return val + + def device_assert_async(self, *args, **kwargs) -> None: + raise NotImplementedError( + f"{type(self).__name__}: device_assert_async should be handled by CSEProxy" + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/optimize_indexing.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/optimize_indexing.py new file mode 100644 index 0000000000000000000000000000000000000000..67c2a74e886afb4b4c3f0f96079633e5bf97e6f5 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/optimize_indexing.py @@ -0,0 +1,126 @@ +import math +from typing import Any + +import sympy + +import torch +from torch.utils._sympy.value_ranges import ValueRanges + +from .loop_body import LoopBody +from .utils import dominated_nodes + + +def val_expressable_in_32_bits(val: Any) -> bool: + if getattr(val, "is_Boolean", False): + return True + + if isinstance(val, sympy.Expr): + assert val.is_number + if val.is_Integer or val.is_Boolean: + val = int(val) + else: + val = float(val) + + # bound within mantissa + if isinstance(val, float): + return val <= (2**24) and val >= -(2**24) + + if isinstance(val, int): + iinfo = torch.iinfo(torch.int32) + return val <= iinfo.max and val >= iinfo.min + + raise TypeError(f"Unexpected value {val}") + + +def range_expressable_in_32_bits(range: ValueRanges[sympy.Expr]) -> bool: + return val_expressable_in_32_bits(range.lower) and val_expressable_in_32_bits( + range.upper + ) + + +def try_to_reduce_precision( + node: Any, + bounds: dict[Any, Any], + indirect_vars: list[Any], + indices: dict[Any, sympy.Expr], + replacement_vals: dict[Any, ValueRanges[sympy.Expr]], +) -> None: + # if a downstream use of a node explicitly converts to int32, or float16/float32/float64, + # then it's precision is set for that chain of uses, and we don't need to consider those + # dominated values + def skip_filter(node: Any) -> bool: + return node.target == "to_dtype" and node.args[2] in ( + torch.int32, + torch.float32, + torch.float64, + ) + + # TODO - there are dominated uses whose dtype does not depend on whether + # we reduce the precision here, e.g. add(int64, int64) one of the args can be reduced to + # int32 without changing the output precision of the node. this case hasn't shown up + for dominated in dominated_nodes([node], skip_filter): + if dominated.target in ["store", "output"]: + continue + + if isinstance(dominated.target, str) and "set_indirect" in dominated.target: + idx = int(dominated.target[len("set_indirect") :]) + indirect_var = indirect_vars[idx] + + # We check that we can compute all the indices it's involved in with int32 + for index, expr in indices.items(): + if indirect_var in expr.free_symbols: + index_val = replacement_vals[index] + + if math.isinf(index_val.lower) or math.isinf(index_val.upper): + return + + # all indices are integers, so make sure that we + # use the bounds of integers instead of floats. + # TODO - not sure if we should be doing int/float casts while tracing, + # might interfere with sympy. + + index_val_int = ValueRanges[sympy.Expr]( + int(index_val.lower), int(index_val.upper) + ) + if not range_expressable_in_32_bits(index_val_int): + return + + if not range_expressable_in_32_bits(bounds[dominated]): + return + + args = list(node.args) + args[2] = torch.int32 + node.args = tuple(args) + + +def indexing_dtype_strength_reduction(loop_body: LoopBody) -> None: + """ + Performs Value Range Analysis on LoopBody's fx graph to reduce precision of + intermediaries from int64 to int32 + """ + bv = loop_body.bounds() + + int64_dtype_nodes = [ + node + for node in loop_body.get_nodes() + if ( + node.target == "to_dtype" + and node.args[2] == torch.int64 + and node not in bv.unbounded_vars + ) + ] + if not int64_dtype_nodes: + return + + bounds = bv.get_bounds() + + # TODO - if dominated node of one to_dtype is not expressible in int32, + # we should short circuit another to_dtype node if that node also dominates + for node in int64_dtype_nodes: + try_to_reduce_precision( + node, + bounds, + loop_body.indirect_vars, + loop_body.indexing_exprs, + bv.replacement_vals, + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/output_code.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/output_code.py new file mode 100644 index 0000000000000000000000000000000000000000..4d9bc98fc2220ab617547f66c1357cdf7c7f016b --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/output_code.py @@ -0,0 +1,1014 @@ +""" +This provides an abstract class which parametrizes over an "output code" concept +for Inductor. Intuitively, this represents the compiled callable which Inductor +produces which you can call to get optimized code. However, this callable +has some other capabilities: + +- It is serializable, so you can save/load this product from disk without + having to do compilation again. + +- (When using remote cache) it is addressable, so you can save just a key + which you can use to load this product from remote cache later. + +This class is abstract because we have several different implementations of +serialized format: + +- Python wrapper (the default) + +- AOTInductor (this produces ABI stable binaries which work across PyTorch + versions) + +""" + +from __future__ import annotations + +import dataclasses +import logging +import os +from functools import partial +from typing import Any, Optional, TYPE_CHECKING, TypeAlias, Union + +import torch +from torch._dynamo.utils import counters, get_runtime_metrics_context +from torch._higher_order_ops.wrap import inductor_compiled_code +from torch._inductor.cudagraph_utils import ( + BoxedDeviceIndex, + CudagraphCachedInfo, + CudagraphMetadata, + get_partition_cudagraph_metadata, + get_placeholder_info, + log_cudagraph_skip_and_bump_counter, +) +from torch._inductor.freezing_utils import has_frozen_params, is_frozen_param +from torch._inductor.utils import ( + _unstable_customized_partition_wrapper, + align_inputs_from_check_idxs, + BoxedBool, + CUDAGraphWrapperMetadata, + GraphPartitionMap, + InputType, + output_node, + set_tracing_context_output_strides, +) +from torch.autograd.profiler import record_function +from torch.utils._ordered_set import OrderedSet +from torch.utils._python_dispatch import is_in_torch_dispatch_mode + +from . import config +from .runtime.autotune_cache import AutotuneCacheBundler + + +if TYPE_CHECKING: + from collections import Counter + from collections.abc import Callable, Sequence + + from torch._inductor import metrics + from torch._inductor.graph import GraphLowering + from torch._library.fake_class_registry import FakeScriptObject + from torch.export.pt2_archive._package_weights import Weights + + from .compile_fx import _CompileFxKwargs + from .triton_bundler import TritonBundle + +log = logging.getLogger(__name__) + + +@dataclasses.dataclass +class OutputCode: + # TODO: Remove underscores here + + # None if the output is not remote cacheable + _fx_graph_cache_key: Optional[str] = dataclasses.field(default=None, init=False) + _fx_graph_cache_debug_lines: Optional[list[str]] = dataclasses.field( + default=None, init=False + ) + + # How long it took to compile this OutputCode, end to end + _time_taken_ns: Optional[int] = dataclasses.field(default=None, init=False) + + def __call__(self, inputs: Sequence[Any]) -> Any: + raise NotImplementedError(type(self)) + + def prepare_for_serialization(self) -> None: + raise NotImplementedError(type(self)) + + def post_compile( + self, + example_inputs: Sequence[InputType], + constants: CompiledFxGraphConstants, + graph_kwargs: _CompileFxKwargs, + ) -> None: + raise NotImplementedError(type(self)) + + # TODO: Get rid of this + def set_triton_bundle(self, triton_bundle: Any) -> None: + raise NotImplementedError(type(self)) + + +_StrideExprStr: TypeAlias = str + + +# copy_ fails when trying to write to tensors with memory overlap, +# for expanded dimensions (a dimension which used to have size 1 -> ?) +# we can select one element from that dimension and write to it +# to achieve writing to all values of that dimension of the input tensor +def get_expanded_dims(t: torch.Tensor) -> list[int]: + if not isinstance(t, torch.Tensor): + # pyrefly: ignore [bad-return] + return None + return [i for i in range(t.ndim) if t.stride(i) == 0 and t.size(i) != 1] + + +def index_expanded_dims(t: torch.Tensor, expanded_dims: list[int]) -> torch.Tensor: + for expanded_dim in expanded_dims: + t = torch.ops.aten.slice(t, expanded_dim, 0, 1) + return t + + +def complex_memory_overlap(t: torch.Tensor) -> bool: + if config.always_complex_memory_overlap_TESTING_ONLY: + return True + + # if torch._debug_has_internal_overlap thinks this tensor potentially has + # memory overlap internally, let's dig deeper to find out whether it's true. + # + # Call squeeze() so that dimension with size 1 does not cause false positive. + t = index_expanded_dims(t, get_expanded_dims(t)).squeeze() + if torch._debug_has_internal_overlap(t) != 0: + strides = t.stride() + sizes = t.shape + indices = list(range(len(strides))) + indices = [x for _, x in sorted(zip(strides, indices))] + for i in range(len(strides)): + prev_stride = 1 if i == 0 else strides[indices[i - 1]] + prev_size = 1 if i == 0 else sizes[indices[i - 1]] + if strides[indices[i]] < prev_stride * prev_size: + return True + return False + + +def maybe_handle_backward_generation( + compiled_graph: CompiledFxGraph, + boxed_forward_device_index: Optional[BoxedDeviceIndex], +) -> None: + assert compiled_graph.current_callable is not None + is_backward = compiled_graph.fx_kwargs["is_backward"] + + # See [Backward Generation Handling] + # if cudagraph'd the forward and set the device, we need to let the cudagraph manager + # know we are we running the backward even if we will not run it in cudagraphs + if is_backward and config.triton.cudagraph_trees: + assert boxed_forward_device_index is not None + assert boxed_forward_device_index.value is not None + compiled_graph_callable = compiled_graph.current_callable + + manager = torch._inductor.cudagraph_trees.get_manager( + boxed_forward_device_index.value, create_if_none_exists=False + ) + # should already exist from forward + assert manager is not None + + def compiled_artifact(new_inputs: list[Any]) -> Callable[..., Any]: + manager.set_to_running_backward() # type: ignore[union-attr] + return compiled_graph_callable(new_inputs) + + compiled_graph.current_callable = compiled_artifact + + +def prepare_cudagraph_post_compile( + compiled_graph: CompiledFxGraph, + example_inputs: Sequence[InputType], + boxed_forward_device_index: Optional[BoxedDeviceIndex], +) -> None: + if not config.triton.cudagraph_trees: + # Force specialize all inputs so that CUDA graphs will work + for t in example_inputs: + if isinstance(t, torch.SymInt): + int(t) # guard + + is_inference = compiled_graph.fx_kwargs["is_inference"] + is_backward = compiled_graph.fx_kwargs["is_backward"] + if boxed_forward_device_index is not None and not is_inference and not is_backward: + boxed_forward_device_index.set(next(iter(compiled_graph.device_idxs))) + + +def cudagraph_post_compile( + example_inputs: Sequence[InputType], + compiled_graph: CompiledFxGraph, + cudagraphs: BoxedBool, + constants: dict[str, Union[torch.Tensor, type]], + boxed_forward_device_index: Optional[BoxedDeviceIndex], +) -> None: + """ + Checks for any reasons not to run cudagraphs and then + runs it on compiled_graph. + Mutates the `compiled_graph.current_callable` and `cudagraphs` + """ + assert compiled_graph.current_callable is not None + assert compiled_graph.cudagraph_info is not None + cached_info = compiled_graph.cudagraph_info + cudagraph_fail_reasons = cached_info.cudagraph_fail_reasons + is_inference = compiled_graph.fx_kwargs["is_inference"] + is_backward = compiled_graph.fx_kwargs["is_backward"] + + if not cudagraph_fail_reasons: + fx_kwargs = compiled_graph.fx_kwargs + static_input_idxs = fx_kwargs["static_input_idxs"] + + placeholders = cached_info.placeholders + stack_traces = cached_info.stack_traces + + prepare_cudagraph_post_compile( + compiled_graph, example_inputs, boxed_forward_device_index + ) + + from .compile_fx import cudagraphify + + current_callable = compiled_graph.current_callable + assert current_callable is not None + # Filter to only tensor constants (exclude opaque value type classes) + tensor_constants = { + k: v for k, v in constants.items() if isinstance(v, torch.Tensor) + } + compiled_graph.current_callable = cudagraphify( + current_callable, + static_input_idxs=static_input_idxs or (), + device_index=next(iter(compiled_graph.device_idxs)), + stack_traces=stack_traces, + is_backward=is_backward, + is_inference=is_inference, + constants=tuple(tensor_constants.values()), + placeholders=placeholders, + mutated_input_idxs=tuple(compiled_graph.mutated_input_idxs), + ) + + else: + BoxedBool.disable(cudagraphs) + maybe_handle_backward_generation(compiled_graph, boxed_forward_device_index) + + if "cuda" in compiled_graph.device_types: + # prefer better disable_cudagraphs_reason bc stack trace + # TODO: migrate all disable reasons to stack trace, refactor + if compiled_graph.disabled_cudagraphs_reason: + log_cudagraph_skip_and_bump_counter( + compiled_graph.disabled_cudagraphs_reason + ) + else: + log_cudagraph_skip_and_bump_counter( + f"skipping cudagraphs due to {cudagraph_fail_reasons}" + ) + + +def cudagraph_partition_post_compile( + example_inputs: Sequence[InputType], + compiled_graph: CompiledFxGraph, + cudagraphs: BoxedBool, + constants: dict[str, Union[torch.Tensor, type]], + boxed_forward_device_index: Optional[BoxedDeviceIndex], +) -> None: + """ + Cudagraphify each partition functions, which first prepares the necessary + metadata and then applies the cudagraphify function to each partition. + + Assuming all partition functions are cudagraphified and share the same order + as `compiled_graph.partition_maps`. See [Note: Graph Partition Map for CUDAGraph]. + """ + assert compiled_graph.cudagraph_info is not None + cudagraph_fail_reasons = compiled_graph.cudagraph_info.cudagraph_fail_reasons + + if ( + cudagraph_fail_reasons + or compiled_graph.partition_maps is None + or len(compiled_graph.partition_maps) == 0 + ): + # cudagraphify is not called if there are no partitions + BoxedBool.disable(cudagraphs) + maybe_handle_backward_generation(compiled_graph, boxed_forward_device_index) + return + + from .compile_fx import cudagraphify + + assert compiled_graph.current_callable is not None + assert compiled_graph.recursively_apply_fns is not None + is_inference = compiled_graph.fx_kwargs["is_inference"] + is_backward = compiled_graph.fx_kwargs["is_backward"] + static_input_idxs = OrderedSet(compiled_graph.fx_kwargs["static_input_idxs"] or ()) + mutated_input_idxs = compiled_graph.mutated_input_idxs + device_index = next(iter(compiled_graph.device_idxs)) + + # Filter to only tensor constants (exclude opaque value type classes) + tensor_constants = { + k: v for k, v in constants.items() if isinstance(v, torch.Tensor) + } + + graph_metadata = CudagraphMetadata( + compiled_graph.cudagraph_info.placeholders, + static_input_idxs, + mutated_input_idxs, + compiled_graph.cudagraph_info.stack_traces, + tensor_constants, + ) + + prepare_cudagraph_post_compile( + compiled_graph, example_inputs, boxed_forward_device_index + ) + + # cudagraphify each partition function, assuming every graph partition function + # is cudagraphable. Non-cudagraphable ops (e.g., cpu ops) are inlined into + # `call` function and not included in partition functions. + cudagraphify_fns = [] + for partition_map in compiled_graph.partition_maps: + partition_metadata = get_partition_cudagraph_metadata( + partition_map, + graph_metadata, + ) + + cudagraphify_fn = partial( + cudagraphify, + static_input_idxs=tuple(partition_metadata.static_input_idxs), + device_index=device_index, + stack_traces=partition_metadata.stack_traces, + is_backward=is_backward, + is_inference=is_inference, + constants=tuple(partition_metadata.constants.values()), + placeholders=partition_metadata.placeholders, + mutated_input_idxs=tuple(partition_metadata.mutated_input_idxs), + ) + cudagraphify_fns.append(cudagraphify_fn) + + compiled_graph.recursively_apply_fns(cudagraphify_fns) + + +def maybe_realign_inputs( + ran_cudagraphs: BoxedBool, + compiled_graph: CompiledFxGraph, + inputs_to_check: Sequence[int], + mutated_inputs_idxs: OrderedSet[int], +) -> None: + """ + Realigns input strides from inputs_to_check if + we didn't end up running cudagraphs. Mutates + `compiled_graph.current_callable` if cudagraphs + was run. Otherwise, does nothing. + """ + if not ran_cudagraphs: + assert compiled_graph.current_callable is not None + new_callable = align_inputs_from_check_idxs( + compiled_graph.current_callable, inputs_to_check, mutated_inputs_idxs + ) + if new_callable is not compiled_graph.current_callable: + compiled_graph.current_callable = new_callable + + +class CompiledFxGraphConstants: + """Wrapper class that unwraps constants from a compiled fx graph. This + version of the class only supports directly grabbing the saved constants off of + a CompiledFxGraph. + + With freezing, FxGraphCache doesn't store the constants of the input + GraphModule it gets from AOTAutograd. Instead, it saves just the **names** + of those constants, and grabs the constant values directly from the graph module + passed in at runtime. + + Thing is, we don't always *have* the graph module available at runtime, hence + the existence of this class and its CompiledFxGraphConstantsWithGm counterpart. + + To support freezing, FXGraphCache gets passed a CompiledFxGraphConstantsWithGm during + post compile. Otherwise, CompiledFxGraphConstants supports the basic case of loading + the value of constants directly off of the original saved object. + """ + + def unwrap(self, g: CompiledFxGraph) -> dict[str, Union[torch.Tensor, type]]: + assert g.constants is not None + return {**g.constants, **g.opaque_value_type_classes} + + +class CompiledFxGraphConstantsWithGm(CompiledFxGraphConstants): + """ + This version of CompiledFxGraphConstants, instead of grabbing constants + directly saved on CompiledFxGraphs, will just grab their names. Then, it takes + a second GraphModule to grab the corresponding constant values out of. + + This is necessary for supporting freezing in FxGraphCache. + """ + + def __init__(self, gm: torch.fx.GraphModule) -> None: + self.gm = gm + + def unwrap(self, g: CompiledFxGraph) -> dict[str, Union[torch.Tensor, type]]: + frozen_params = { + name: getattr(self.gm, orig_name) + for name, orig_name in g.frozen_param_names.items() + } + constants = g.constants or {} + return {**constants, **frozen_params, **g.opaque_value_type_classes} + + +@dataclasses.dataclass +class CompiledFxGraph(OutputCode): + """ + Class holding a compiled FX graph. This is the object serialized on disk + to support FxGraph caching. + """ + + current_callable: Optional[Callable[..., Any]] + recursively_apply_fns: Optional[Callable[..., Any]] + compiled_fn_runner: Optional[Any] + cache_key: str + source_code: str = dataclasses.field(repr=False) # Do not display source_code + runnable_graph_str: str = dataclasses.field(repr=False) # Do not display graph + inductor_post_grad_graph_str: str = dataclasses.field( + repr=False + ) # Do not display graph + cache_linemap: Optional[list[tuple[int, str]]] + device_types: OrderedSet[str] + device_idxs: OrderedSet[int] + mutated_inputs: OrderedSet[str] + mutated_input_idxs: OrderedSet[int] + constants: Optional[dict[str, torch.Tensor]] + frozen_param_names: dict[str, str] + torchbind_constants: dict[str, torch._C.ScriptObject | FakeScriptObject] + opaque_value_type_classes: dict[str, type] + output_strides: Optional[list[Optional[tuple[_StrideExprStr, ...]]]] + disabled_cudagraphs_reason: Optional[str] + metrics_deltas: metrics.CachedMetricsDeltas + counter_deltas: Counter[str] + # This is a string representation of an expression we serialize + # with the object so the guards can be evaluated in a different + # context in order to verify the validity of serving a cached + # fx graph. The expression must be generated by: + # ShapeEnv.produce_guards_expression() + guards_expr: Optional[str] + inductor_provenance_mapping_str: Optional[str] + inductor_provenance_stack_traces_str: Optional[str] + + cudagraph_info: Optional[CudagraphCachedInfo] + partition_maps: Optional[list[GraphPartitionMap]] + fx_kwargs: _CompileFxKwargs + inputs_to_check: Sequence[int] + + _boxed_call: Optional[bool] = None + _triton_bundle: Optional[TritonBundle] = None + _wrap_compiled_regions: bool = False + + def __init__( + self, + current_callable: Optional[Callable[..., Any]], + graph: GraphLowering, + gm: torch.fx.GraphModule, + output_strides: list[Optional[tuple[_StrideExprStr, ...]]], + disabled_cudagraphs_reason: Optional[str], + metrics_deltas: metrics.CachedMetricsDeltas, + counter_deltas: Counter[str], + cudagraphs: BoxedBool, + example_inputs: Sequence[InputType], + static_input_idxs: Sequence[int], + fx_kwargs: _CompileFxKwargs, + inputs_to_check: Sequence[int], + runnable_graph_str: str, + inductor_post_grad_graph_str: str, + compiled_fn_runner: Optional[Any] = None, + inductor_provenance_mapping_str: Optional[str] = None, + inductor_provenance_stack_traces_str: Optional[str] = None, + ) -> None: + self.current_callable = current_callable + self.compiled_fn_runner = compiled_fn_runner + self.recursively_apply_fns = ( + compiled_fn_runner.recursively_apply_fns + if compiled_fn_runner is not None + else None + ) + self.cache_key = graph.cache_key + if graph.cache_path: + with open(graph.cache_path) as f: + self.source_code = f.read() + self.runnable_graph_str = runnable_graph_str + self.inductor_post_grad_graph_str = inductor_post_grad_graph_str + self.inductor_provenance_mapping_str = inductor_provenance_mapping_str + self.inductor_provenance_stack_traces_str = inductor_provenance_stack_traces_str + self.cache_linemap = graph.cache_linemap + # TODO - ordered set + self.device_types = OrderedSet(graph.device_types) + self.device_idxs = OrderedSet(graph.device_idxs) + self.mutated_inputs = OrderedSet(graph.mutated_inputs) + self.mutated_input_idxs = OrderedSet(graph.mutated_input_idxs) + + # We store the constant attributes in the cache entry and re-attach them + # to the module created in PyCodeCache.load_by_key_path. In the case that + # the graph has frozen parameters, we save the mapping from the attribute + # names in the GraphLowering to the original name of the attribute in the + # GraphModule. When we create the module from the cache entry, we then + # look up the constants from the current GraphModule. This scheme allows + # us to support caching with freezing. + if not has_frozen_params(gm): + self.constants = graph.constants + self.frozen_param_names = {} + else: + self.constants = {} + self.frozen_param_names = {} + for k, v in graph.constants.items(): + if is_frozen_param(v): + self.frozen_param_names[k] = graph.allocated_constant_name[k] + else: + self.constants[k] = v + + self.torchbind_constants = graph.torchbind_constants + self.opaque_value_type_classes = graph.opaque_value_type_classes + self.output_strides = output_strides + self.disabled_cudagraphs_reason = disabled_cudagraphs_reason + self.metrics_deltas = metrics_deltas + self.counter_deltas = counter_deltas + self.guards_expr = None + self.cudagraph_info = None + self.partition_maps = graph.partition_maps + self.fx_kwargs = {} + self.inputs_to_check = () + + cudagraph_info = None + if cudagraphs: + # check cudagraph disabling reasons from inductor lowering + if self.disabled_cudagraphs_reason: + if "cuda" in self.device_types: + log_cudagraph_skip_and_bump_counter( + f"skipping cudagraphs due to {self.disabled_cudagraphs_reason}" + ) + else: + counters["inductor"]["cudagraph_skips"] += 1 + BoxedBool.disable(cudagraphs) + else: + complex_memory_overlap_inputs = any( + complex_memory_overlap(t) + for t in example_inputs + if isinstance(t, torch.Tensor) + ) + + if not config.triton.cudagraph_support_input_mutation: + # Skip supports for cudagraph-managed tensors + from torch._inductor.cudagraph_utils import ( + check_for_mutation_ignore_cuda_graph_managed_tensor, + ) + + has_mutation_str = ( + check_for_mutation_ignore_cuda_graph_managed_tensor( + gm, + self.mutated_inputs, + self.mutated_input_idxs, + static_input_idxs, + ) + ) + has_mutation = has_mutation_str is not None + + if has_mutation: + self.disabled_cudagraphs_reason = has_mutation_str + else: + # Check mutation later to support cudagraph-managed tensors + has_mutation = None + + cudagraph_tests = [ + (not has_mutation, "mutated inputs"), + (not complex_memory_overlap_inputs, "complex memory overlap"), + ( + all( + isinstance(t, (torch.Tensor, torch.SymInt, torch.Generator)) + for t in example_inputs + ), + "non-Tensor inputs", + ), + ] + output = output_node(gm) + # output args are tuple of first argument + assert len(output.args) == 1 + stack_traces = [ + (arg.stack_trace if isinstance(arg, torch.fx.node.Node) else None) + for arg in output.args[0] # type: ignore[union-attr] + ] + cudagraph_fail_reasons = [s for b, s in cudagraph_tests if not b] + placeholders = tuple(get_placeholder_info(gm.graph)) + cudagraph_info = CudagraphCachedInfo( + placeholders, stack_traces, cudagraph_fail_reasons + ) + + self.cudagraph_info = cudagraph_info + self.inputs_to_check = inputs_to_check + self.fx_kwargs = fx_kwargs + + # aot autograd needs to know to pass in inputs as a list + self._boxed_call = True + + # Store whether to wrap compiled regions in inductor_compiled_code HOP + # This is set at compile time to avoid runtime overhead + self._wrap_compiled_regions = config.wrap_inductor_compiled_regions + + def __del__(self) -> None: + if self.compiled_fn_runner is not None: + # For torch._inductor.config.graph_partition = True, + # self.compiled_fn_runner.partitions hold cudagraphified functions + # which prevents deallocation. When CompiledFxGraph is deleted, + # self.compiled_fn_runner will not be called in the future so we + # should also delete these partitions. + del self.compiled_fn_runner.partitions + + def __call__(self, inputs: Sequence[Any]) -> Any: + assert self.current_callable is not None + + if ( + torch._inductor.debug.RECORD_GRAPH_EXECUTION + and torch._inductor.debug.GRAPH_EXECUTION_ORDER is not None + ): + graph_id = self.fx_kwargs.get("graph_id") + compile_id = ( + torch._inductor.debug.GRAPH_COMPILE_IDS.get(graph_id) + if graph_id is not None + and torch._inductor.debug.GRAPH_COMPILE_IDS is not None + else None + ) + torch._inductor.debug.GRAPH_EXECUTION_ORDER.append( + { + "compile_id": compile_id, + } + ) + try: + # Checking the profiler directly is faster than nullcontext + if torch.autograd.profiler._is_profiler_enabled: + with record_function( + f"## Call CompiledFxGraph {self._fx_graph_cache_key} ##" + ): + return self.current_callable(inputs) + else: + return self.current_callable(inputs) + finally: + get_runtime_metrics_context().finish() + AutotuneCacheBundler.end_compile() + + def post_compile( + self, + example_inputs: Sequence[InputType], + constants: CompiledFxGraphConstants, + graph_kwargs: _CompileFxKwargs, + ) -> None: + """ + Run a set of post processing steps after loading from the cache. These involve: + - Setting the tracing context output strides + - Running cudagraphs if enabled + - Realigning inputs + + This runs whether or not we have a cache hit, and always runs directly after we get a CompiledFxGraph. + The results of this function are *not* saved in the cache itself. + """ + if config.graph_partition and _unstable_customized_partition_wrapper.wrapper: + # Mechanically apply user-specified cudagraph wrappers without modification + assert self.recursively_apply_fns is not None + assert self.compiled_fn_runner is not None + num_partitions = len(self.compiled_fn_runner.partitions) + wrapper_metadatas = [ + CUDAGraphWrapperMetadata(num_partitions, i) + for i in range(num_partitions) + ] + customized_wrapper = _unstable_customized_partition_wrapper.wrapper + customized_wrappers_with_metadata = [ + lambda f, m=metadata: customized_wrapper(f, m) + for metadata in wrapper_metadatas + ] + self.recursively_apply_fns(customized_wrappers_with_metadata) + return + + set_tracing_context_output_strides(example_inputs, self) + assert graph_kwargs["cudagraphs"] is not None + assert graph_kwargs["is_backward"] is not None + is_backward = graph_kwargs["is_backward"] + cudagraphs: BoxedBool = graph_kwargs["cudagraphs"] + if cudagraphs: + # It's possible that cudagraphs is enabled, but was disabled + # during a previous compilation we're loading from the cache. + # If so, we need to disable it on this new process too. + if self.disabled_cudagraphs_reason: + if "cuda" in self.device_types: + log_cudagraph_skip_and_bump_counter( + f"skipping cudagraphs due to {self.disabled_cudagraphs_reason}" + ) + else: + counters["inductor"]["cudagraph_skips"] += 1 + BoxedBool.disable(cudagraphs) + else: + if is_backward: + assert "boxed_forward_device_index" in graph_kwargs + boxed_forward_device_index = graph_kwargs[ + "boxed_forward_device_index" + ] + else: + # On the forward we don't know whether or not + # boxed_forward_device_index is set yet + boxed_forward_device_index = graph_kwargs.get( + "boxed_forward_device_index", None + ) + + if config.graph_partition: + # with graph_partition=True, we skip some cudagraph checks if it's supported + # with partition. So we have to use cudagraph_partition_post_compile. + cudagraph_partition_post_compile( + example_inputs, + self, + cudagraphs, + constants.unwrap(self), + boxed_forward_device_index, + ) + else: + cudagraph_post_compile( + example_inputs, + self, + cudagraphs, + constants.unwrap(self), + boxed_forward_device_index, + ) + inputs_to_check = self.inputs_to_check + # cudagraphs could have been disabled from the earlier conditions + # so we still need to realign inputs if that happens + maybe_realign_inputs( + cudagraphs, + self, + inputs_to_check, + self.mutated_input_idxs, + ) + + # Apply inductor_compiled_code HOP wrapper if configured + # This is done in post_compile to ensure it works with cached artifacts + if self._wrap_compiled_regions and self.current_callable is not None: + original_callable = self.current_callable + + def wrapped_callable(inputs): + if is_in_torch_dispatch_mode(): + return inductor_compiled_code(original_callable, inputs) + else: + return original_callable(inputs) + + self.current_callable = wrapped_callable + + def set_triton_bundle(self, triton_bundle: Any) -> None: + self._triton_bundle = triton_bundle + + def prepare_for_serialization(self) -> None: + # We can't really serialize callables that may be C++/Triton/etc., + # so we serialize their PyCodeCache disk cache location instead. + # TODO: This could be better if we're ever able to serialize compiled + # models to disk. + self.current_callable = None + self.recursively_apply_fns = None + self.compiled_fn_runner = None + + def write_to_disk(self) -> str: + from torch._dynamo.utils import counters + from torch._inductor.codecache import get_path, write_atomic + + # See _save_graph(); we don't store the callable in the cache entry so + # recreate it here from the PyCodeCache disk cache. + artifact_path = get_path(self.cache_key, "py")[2] + code = self.source_code + if not os.path.exists(artifact_path): + counters["inductor"]["fxgraph_lookup_write_file"] += 1 + write_atomic(artifact_path, code, make_dirs=True) + return artifact_path + + def after_deserialization(self, constants: CompiledFxGraphConstants) -> str: + from torch._dynamo.utils import dynamo_timed + from torch._inductor.codecache import PyCodeCache + + artifact_path = self.write_to_disk() + + try: + with dynamo_timed( + "PyCodeCache.load_by_key_path", + log_pt2_compile_event=True, + ): + code_cache = PyCodeCache.load_by_key_path( + self.cache_key, + artifact_path, + self.cache_linemap, + constants.unwrap(self), + ) + self.current_callable = code_cache.call + self.recursively_apply_fns = getattr( + code_cache, "recursively_apply_fns", None + ) + self.compiled_fn_runner = getattr(code_cache, "runner", None) + except OSError: + log.error("Failed to load artifact: %s", artifact_path) + raise + + return artifact_path + + +@dataclasses.dataclass +class CompiledAOTI(OutputCode): + """ + Class holding an AOTInductor compiled so. + """ + + filename: Union[str, list[Union[str, Weights]], torch.fx.GraphModule] + device_type: str + current_callable: Optional[Callable[..., Any]] = None + _cached_files: dict[str, bytes] = dataclasses.field(default_factory=dict) + + def __post_init__(self): + if not config.aot_inductor.link_libtorch: + return + + if ( + torch._inductor.cpp_builder._IS_MACOS + or torch._inductor.cpp_builder._IS_WINDOWS + ): + return + + if config.aot_inductor.cross_target_platform == "windows": + return + + if config.aot_inductor.package_cpp_only: + return + + if not config.enable_autograd_for_aot: + return + + if isinstance(self.filename, list): + current_callable = next( + fn for fn in self.filename if isinstance(fn, str) and fn.endswith(".so") + ) + else: + current_callable = self.filename + + if isinstance(current_callable, torch.fx.GraphModule): + self.current_callable = current_callable + return + + if self.device_type.startswith("cuda"): + current_callable = ( + torch._C._aoti.AOTIModelContainerRunnerCuda( # type: ignore[call-arg] + current_callable, + 1, + self.device_type, + "", + True, + ).run # type: ignore[attr-defined] + ) # type: ignore[attr-defined] + elif self.device_type == "cpu": + current_callable = ( + torch._C._aoti.AOTIModelContainerRunnerCpu( # type: ignore[call-arg] + current_callable, 1 + ).run # type: ignore[attr-defined] + ) # type: ignore[attr-defined] + else: + raise RuntimeError(f"unsupported device type {self.device_type}") + self.current_callable = current_callable + self._boxed_call = True + for file in self._cached_files: + if not os.path.exists(file): + with open(file, "wb") as f: + f.write(self._cached_files[file]) + + def __call__(self, inputs: Sequence[Any]) -> Any: + if self.current_callable is None: + raise RuntimeError("AOTInductor compiled so is not loaded") + return self.current_callable(inputs) + + def prepare_for_serialization(self) -> None: + self.current_callable = None + self._cached_files = {} + filenames: list[str] = [] + if isinstance(self.filename, list): + filenames = self.filename # type: ignore[assignment] + elif isinstance(self.filename, str): + filenames = [self.filename] + for name in filenames: + with open(name, "rb") as f: + self._cached_files[name] = f.read() + + def __getstate__(self): + state = self.__dict__.copy() + state["current_callable"] = None + return state + + def post_compile( + self, + example_inputs: Sequence[InputType], + constants: CompiledFxGraphConstants, + graph_kwargs: _CompileFxKwargs, + ) -> None: + if self.current_callable is None: + self.__post_init__() + + def set_triton_bundle(self, triton_bundle: Any) -> None: + pass + + +@dataclasses.dataclass +class MockFXGraphCacheOutput(OutputCode): + gm: Any = None + + def __post_init__(self) -> None: + self._boxed_call = True + + def post_compile( + self, + example_inputs: Sequence[InputType], + constants: CompiledFxGraphConstants, + graph_kwargs: _CompileFxKwargs, + ) -> None: + pass + + def __call__(self, inputs: Sequence[Any]) -> Any: + return self.gm(inputs) + + def set_triton_bundle(self, triton_bundle: Any) -> None: + pass + + +@dataclasses.dataclass +class RegionalOutputCode(OutputCode): + """ + OutputCode for regional inductor compilation results. + + Regional inductor returns a torch.fx.GraphModule that contains both + compiled regions (via standalone_compile) and eager regions. This needs + special serialization using GraphPickler instead of standard pickle. + + The serialization strategy stores the GraphModule as bytes using + GraphPickler.dumps(), which handles FakeTensors, AOTCompiledArtifacts, + and other special objects that standard pickle cannot handle. + """ + + # The serialized graph module as bytes (using GraphPickler) + _serialized_graph_module: Optional[bytes] = dataclasses.field( + default=None, init=False + ) + + # The actual graph module (cleared during serialization) + _graph_module: Optional[torch.fx.GraphModule] = dataclasses.field( + default=None, init=False + ) + + def __init__(self, graph_module: torch.fx.GraphModule): + """ + Args: + graph_module: The torch.fx.GraphModule returned by regional_inductor + """ + super().__init__() + self._graph_module = graph_module + self._serialized_graph_module = None + + def __call__(self, inputs: Sequence[Any]) -> Any: + """Execute the regional compiled graph.""" + if self._graph_module is None: + raise RuntimeError( + "RegionalOutputCode has no graph module loaded. " + "Did you forget to call post_compile()?" + ) + return self._graph_module(*inputs) + + def post_compile( + self, + example_inputs: Sequence[InputType], + constants: CompiledFxGraphConstants, + graph_kwargs: _CompileFxKwargs, + ) -> None: + """ + Post-compile processing for regional inductor. + + This deserializes the GraphModule from bytes using GraphPickler, + extracting the fake_mode from example_inputs. + """ + if self._graph_module is not None: + return + assert self._serialized_graph_module is not None + # Get fake mode from example inputs + from torch._guards import detect_fake_mode + + fake_mode = detect_fake_mode(example_inputs) + if fake_mode is None: + raise RuntimeError( + "Could not detect fake mode from example inputs. " + "Regional inductor requires fake mode for deserialization." + ) + + # Deserialize the graph module + from torch.fx._graph_pickler import GraphPickler + + gm = GraphPickler.loads(self._serialized_graph_module, fake_mode) + assert isinstance(gm, torch.fx.GraphModule) + gm.recompile() + self._graph_module = gm + + def set_triton_bundle(self, triton_bundle: Any) -> None: + """Regional inductor doesn't use triton bundles directly.""" + + def prepare_for_serialization(self) -> None: + """ + Prepare for serialization by converting the GraphModule to bytes. + + This uses GraphPickler to serialize the graph module since it contains + special objects like FakeTensors and AOTCompiledArtifacts that need + custom pickling. + """ + if self._graph_module is not None: + from torch.fx._graph_pickler import GraphPickler + + self._serialized_graph_module = GraphPickler.dumps(self._graph_module) + # Clear the graph module to avoid pickling it with standard pickle + self._graph_module = None diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/pattern_matcher.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/pattern_matcher.py new file mode 100644 index 0000000000000000000000000000000000000000..6c2c98a5609d16022a372b445311e29b54a9a425 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/pattern_matcher.py @@ -0,0 +1,2368 @@ +""" +# Inductor Pattern Matcher + +The pattern matcher enables search/replace within an FX graph. + +The main entrypoint to the pattern matcher is register_replacement(). Given a +search function and a replacement function this will register a replacement with +a pass (such as torch._inductor.fx_passes.joint_graph.patterns). + +Internally the pattern matcher represents patterns as a graph (a DAG). Creating +new patterns manually as a graph is cumbersome and error-prone so the standard +way to create patterns (using register_replacement()) is to provide a search +function and a replacement function which is traced and converted into a graph. + +Because the search functions are built somewhat generic (they tend to ignore +tensor sizes, for example) register_replacement() allows you to specify an +`extra_check` function which performs additional checks to verify that the +matched pattern fully matches before returning it. + +## Precompiled Patterns + +New patterns are added using register_replacement(). Patterns added in this way +can have a compile-time overhead because they need to be traced before +use. Patterns can be precompiled and added using gen_register_replacement() +instead. To do this you call gen_register_replacement() instead of +register_replacement(). The arguments are the same except for an additional +unique name which is used as a lookup key. + +## Internals + +The match DAG is represented by a graph of `PatternExpr` nodes. Each PatternExpr +implements a `_match` method which returns either a `Match` object for a +successful match or a `FailedMatch` object for a failure to match. +""" + +from __future__ import annotations + +import contextlib +import dataclasses +import functools +import importlib +import inspect +import itertools +import logging +import operator +import os +import re +import textwrap +import typing +from abc import ABC, abstractmethod +from collections import defaultdict +from collections.abc import Callable, Collection, Generator, Iterable, Mapping, Sequence +from pathlib import Path +from typing import Any, NoReturn, Optional, Protocol, TypeVar, Union +from typing_extensions import Self, TypeIs + +import torch +import torch._guards +import torch.fx +import torch.utils._pytree as pytree +from torch._dispatch.python import enable_python_dispatcher +from torch._dynamo.utils import counters +from torch._prims_common import is_integer_dtype +from torch._subclasses.fake_tensor import unset_fake_temporarily +from torch.fx.experimental.proxy_tensor import make_fx +from torch.fx.experimental.symbolic_shapes import guard_or_false, statically_known_true +from torch.fx.graph_module import _get_attr +from torch.fx.immutable_collections import immutable_dict, immutable_list +from torch.fx.passes.graph_transform_observer import GraphTransformObserver +from torch.fx.traceback import preserve_node_meta +from torch.utils._ordered_set import OrderedSet + +from .._functorch import config as functorch_config +from .._functorch.aot_autograd import aot_function, make_boxed_func +from .._functorch.partitioners import default_partition +from .._subclasses import FakeTensor, FakeTensorMode +from ..fx import Transformer +from . import config +from .decomposition import select_decomp_table +from .lowering import fallback_node_due_to_unsupported_type + + +log = logging.getLogger(__name__) +aten = torch.ops.aten +prims = torch.ops.prims + +Constant = Any +NodeOrConstant = Union[Constant, torch.fx.Node] + +backend = os.environ.get("TORCHINDUCTOR_PATTERN_MATCH_BACKEND", "inductor") + + +class SearchFn(Protocol): + __name__: str + + def __call__(self, *args: Any, **kwargs: Any) -> Any: ... + + +class ReplaceFn(Protocol): + def __call__(self, *args: Any, **kwargs: Any) -> Any: ... + + +class TraceFn(Protocol): + def __call__( + self, fn: Union[SearchFn, ReplaceFn], *args: Any, **kwargs: Any + ) -> torch.fx.GraphModule: ... + + +T = TypeVar("T") + +# What's a better name for this? +FnsType = Union[torch.fx.node.Target, str] + + +class Multiple: + def __init__(self) -> None: + # Ensure we're really a singleton. + assert "MULTIPLE" not in globals() or self is MULTIPLE + + +# Sentinel indicating multiple quantities can be matched +MULTIPLE = Multiple() + + +def _transfer_meta( + new_meta: dict[str, Any], old_node: torch.fx.Node, pass_name: str = "" +) -> None: + from torch.fx.traceback import NodeSource, NodeSourceAction + + # transfer metadata after pattern matching occurs. + # skip "val" and "tensor_meta" because this info is too specific; it's unlikely + # to remain accurate after pattern matching has occurred. + if config.trace.provenance_tracking_level == 1: + # We handle "from_node" field of the node meta specially to record that the new node comes from the old_node. + new_from_node = new_meta.get("from_node", []).copy() + new_from_node.append(NodeSource(old_node, pass_name, NodeSourceAction.REPLACE)) + new_meta.update( + (k, v) + for k, v in old_node.meta.items() + if k in torch.fx.proxy._COPY_META_FIELDS + ) + new_meta["from_node"] = new_from_node + else: + new_meta.update( + (k, v) + for k, v in old_node.meta.items() + if k in torch.fx.proxy._COPY_META_FIELDS + ) + if "stack_trace" in old_node.meta: + new_meta["stack_trace"] = old_node.meta["stack_trace"] + + +class Match: + """ + Represents a successfully matched pattern. + + The `Match` object is returned to represent a successfully matched + pattern. Included in the Match are the pattern that was matched, the graph + nodes matched, and any args that were used during the matching. + + The args and kwargs are specific to the type of pattern that was matched and + provide hints about what was matched. + """ + + pattern: PatternExpr + args: list[Any] + kwargs: dict[str, Any] + nodes: list[torch.fx.Node] + targets: dict[_TargetExpr, torch.fx.node.Target] + ctx: MatchContext + replacement_graph: Optional[torch.fx.GraphModule] + + def __init__( + self, + ctx: MatchContext, + pattern: PatternExpr, + args: Optional[Sequence[Any]] = None, + kwargs: Optional[dict[str, Any]] = None, + ) -> None: + super().__init__() + self.pattern = pattern + # The input nodes that must be passed in to the result + self.args = list(args or []) + self.kwargs = kwargs or {} + # The nodes matched in this expression + self.nodes = [] + # Mapping CallFunction to the node.target + self.targets = {} + self.ctx = ctx + self.replacement_graph = None + + @property + def graph(self) -> torch.fx.Graph: + return self.ctx.graph + + def extend(self, other: Match) -> None: + if self.kwargs: + for key in OrderedSet(self.kwargs.keys()) & OrderedSet(other.kwargs.keys()): + if self.kwargs[key] != other.kwargs[key]: + raise FailedMatch("kwarg mismatch: {}", key) + self.args.extend(other.args) + self.nodes.extend(other.nodes) + self.kwargs.update(other.kwargs) + self.targets.update(other.targets) + + def bundle(self) -> Match: + # Wrap args in an extra list + self.args = [tuple(self.args)] if self.args else [] + return self + + def __repr__(self) -> str: + return f"Match(..., {self.args}, {self.kwargs})" + + def erase_nodes(self) -> None: + graph = self.graph + for n in reversed(self.nodes): + if not n._erased and not n.users: + graph.erase_node(n) + + def output_nodes(self) -> list[Optional[torch.fx.Node]]: + return [ + (self.ctx.pattern_to_node[p] if p is not None else None) + for p in self.ctx.outputs + ] + + def output_node(self) -> torch.fx.Node: + return next(p for p in self.output_nodes() if p) + + def replace_with_graph( + self, replacement_graph: torch.fx.Graph, args: Sequence[Any] + ) -> None: + ReplacementPatternEntry.replace_with_graph( + self, self.ctx.graph, replacement_graph, args + ) + + def replace_by_example( + self, + replacement_fn: ReplaceFn, + args: Sequence[Any], + trace_fn: Optional[TraceFn] = None, + run_functional_passes: bool = True, + ) -> None: + """Replace with a graph generated by tracing the replacement_fn. + + Args: + run_functional_passes (bool). If we should run passes that + assume functional IR (like DCE, remove_noop_ops), on the + replacement graph. + + """ + from torch._inductor.virtualized import NullHandler, V + + context = ( + V.fake_mode + if (not isinstance(V.fake_mode, NullHandler) or (V.fake_mode is None)) + else contextlib.nullcontext() + ) + + def should_propagate_eager_input_vals(nodes: list[torch.fx.Node]) -> bool: + if len(nodes) != 1: + return False + node = nodes[0] + if "eager_input_vals" not in node.meta: + return False + return node.target in OrderedSet( + [ + torch.ops.higher_order.triton_kernel_wrapper_functional, + torch.ops.higher_order.auto_functionalized, + torch.ops.higher_order.auto_functionalized_v2, + ] + ) + + # pyrefly: ignore [bad-context-manager] + with context: + if trace_fn is None: + trace_fn = functools.partial( + fwd_only, run_functional_passes=run_functional_passes + ) + + if should_propagate_eager_input_vals(self.nodes): + # Our strategy is: + # 1) trace out the graph with eager_input_vals (which have accurate eager-mode metadata) + # 2) trace out the graph with vals (which have the accurate Inductor metadata) + # 3) Propagate the eager_input_vals from the first graph to the second. + # 4) Use the second graph as the replacement graph. + + # Construct a map of node -> FakeTensor val in eager_input_vals + node_to_val = {} + + fake_args, fake_kwargs = self.nodes[0].meta["eager_input_vals"] + fake_kwargs = {**fake_kwargs} + match_args, match_kwargs = tuple(self.args), self.kwargs + + def record(node: torch.fx.Node, val: Any) -> None: + if isinstance(node, torch.fx.Node): + node_to_val[node] = val + + torch.utils._pytree.tree_map( + record, (match_args, match_kwargs), (fake_args, fake_kwargs) + ) + # map args to their FakeTensor val in eager_input_vals + example_vals = torch.fx.map_arg(args, lambda arg: node_to_val[arg]) + + # first graph + graph_with_eager_vals = trace_fn(replacement_fn, example_vals) + + # second graph + example_vals = torch.fx.map_arg(args, lambda arg: arg.meta["val"]) + replacement = trace_fn(graph_with_eager_vals, example_vals) + + # propagate metadata from first graph to second + # NB: This assertion might not be true in general, but it is true for + # the two use cases we have + # (triton_kernel_wrapper_functional, auto_functionalized) + assert len(graph_with_eager_vals.graph.nodes) == len( + replacement.graph.nodes + ) + for old_node, new_node in zip( + graph_with_eager_vals.graph.nodes, replacement.graph.nodes + ): + if "eager_input_vals" in old_node.meta: + new_node.meta["eager_input_vals"] = old_node.meta[ + "eager_input_vals" + ] + + else: + example_vals = torch.fx.map_arg( + args, + lambda arg: arg.meta["val"] + if "val" in arg.meta + else arg.meta["example_value"], + ) + replacement = trace_fn(replacement_fn, example_vals) + if len(self.nodes) == 1: + for n in replacement.graph.nodes: + _transfer_meta( + new_meta=n.meta, + old_node=self.nodes[0], + pass_name="replace_by_example", + ) + + ReplacementPatternEntry.replace_with_graph( + self, + self.ctx.graph, + replacement, + args, + ) + + +class FailedMatch(RuntimeError): + """ + Represents a unsuccessful match. + + The `FailedMatch` object is returned to represent a failure to match a + pattern. + """ + + format_string: str + + def __init__(self, format_string: str, *args: Any, **kwargs: Any) -> None: + self.format_string = format_string + # We want to construct error messages lazily instead of eagerly, as + # constructing them eagerly can significantly worsen compile times. + if len(format_string) > 200: + raise RuntimeError( + f"Format string too long - use lazy construction of strings instead. Format string is\n {format_string}" + ) + self.args = args + self.kwargs = kwargs + + def __str__(self) -> str: + return self.format_string.format(*self.args, **self.kwargs) + + def __bool__(self) -> bool: + return False + + +MatchResult = Union[Match, FailedMatch] + + +def is_match(m: MatchResult) -> TypeIs[Match]: + """ + TypeIs cannot act on `self`. Thus this function exists to let mypy + recognize FailedMatch.__bool__ as a TypeIs. + """ + return bool(m) + + +class MatchContext: + """ + Internal state needed while running PatternExpr._match(). + """ + + outputs: list[Optional[PatternExpr]] + pattern_to_node: dict[PatternExpr, Optional[torch.fx.Node]] + graph: torch.fx.Graph + exclusive_node_set: list[NodeOrConstant] + + def __init__( + self, + outputs: list[Optional[PatternExpr]], + pattern_to_node: Optional[dict[PatternExpr, torch.fx.Node]] = None, + *, + graph: torch.fx.Graph, + ) -> None: + self.outputs = outputs + self.pattern_to_node = {} if pattern_to_node is None else dict(pattern_to_node) + self.graph = graph + self.exclusive_node_set = [] + + def match(self, pattern: PatternExpr, node: NodeOrConstant) -> MatchResult: + """wrapper to check reused nodes in patterns""" + if pattern in self.pattern_to_node: + if self.pattern_to_node[pattern] == node: + return Match(self, pattern) # already checked this node + else: + return FailedMatch("repeated pattern differs") + m = pattern._match(node, self) + assert pattern not in self.pattern_to_node + self.pattern_to_node[pattern] = node if m else None + return m + + def filter_multi_user_patterns(self) -> dict[PatternExpr, torch.fx.Node]: + return { + pattern: node + for pattern, node in self.pattern_to_node.items() + if pattern.has_multiple_users() and node is not None + } + + +class PatternExpr(ABC): + """ + Base class for types of patterns. + """ + + @abstractmethod + def _match(self, node: torch.fx.Node, ctx: MatchContext) -> MatchResult: ... + + def match(self, node: torch.fx.Node) -> MatchResult: + try: + return MatchContext([self], graph=node.graph).match(self, node) + except FailedMatch as e: + return e + + def has_multiple_users(self) -> bool: + return False + + def __repr__(self) -> str: + return self.__class__.__name__ + "()" + + def find_anchor_nodes( + self, ctx: MatchContext, searched: OrderedSet[torch.fx.Node] + ) -> Generator[Optional[torch.fx.Node], None, None]: + if self in ctx.pattern_to_node: + yield ctx.pattern_to_node[self] + + def pattern_eq(self, other: Any) -> bool: + """ + Compare two `PatternExpr`s and return true if they are the + same. Note this is NOT matching a pattern - it is comparing the pattern + structures (for debugging). + """ + return isinstance(other, self.__class__) + + +class Arg(PatternExpr): + """ + Capture an arg which will become an input to the handler. Args are + passed in depth first order. + """ + + def _match(self, node: NodeOrConstant, ctx: MatchContext) -> MatchResult: + return Match(ctx, self, args=[node]) # matches anything + + +class Ignored(PatternExpr): + """ + Match an arg, but don't pass it to handler + """ + + def _match(self, node: NodeOrConstant, ctx: MatchContext) -> MatchResult: + return Match(ctx, self) # matches anything + + def __repr__(self) -> str: + return "*" + + def pretty_print(self, pp: PatternPrettyPrinter) -> str: + return "Ignored()" + + +class KeywordArg(PatternExpr): + """ + Capture a kwarg which will become an input to the handler. + """ + + def __init__(self, name: str) -> None: + super().__init__() + self.name = name + + def __repr__(self) -> str: + return f"KeywordArg({self.name!r})" + + def _match(self, node: NodeOrConstant, ctx: MatchContext) -> MatchResult: + return Match(ctx, self, kwargs={self.name: node}) # matches anything + + def pattern_eq(self, other: Any) -> bool: + other = typing.cast(Self, other) # super makes sure this is true + return super().pattern_eq(other) and self.name == other.name + + +class ExclusiveKeywordArg(PatternExpr): + """ + Capture a kwarg which will become an input to the handler. + """ + + name: str + + def __init__(self, name: str) -> None: + super().__init__() + self.name = name + + def __repr__(self) -> str: + return f"ExclusiveKeywordArg({self.name!r})" + + def _match(self, node: NodeOrConstant, ctx: MatchContext) -> MatchResult: + if node in ctx.exclusive_node_set: + return FailedMatch("exclusive arg appears twice") + + ctx.exclusive_node_set.append(node) + return Match(ctx, self, kwargs={self.name: node}) # matches anything + + def pattern_eq(self, other: Any) -> bool: + other = typing.cast(Self, other) # super makes sure this is true + return super().pattern_eq(other) and self.name == other.name + + +class _TargetExpr(PatternExpr): + """ + Base class for filtering match by node.target + """ + + fns: list[FnsType] + fns_set: OrderedSet[FnsType] + + def __init__( + self, fns: Union[FnsType, Sequence[FnsType]], users: Union[Multiple, int] = 1 + ) -> None: + super().__init__() + fns = [fns] if callable(fns) or isinstance(fns, str) else list(fns) + for fn in fns: + if isinstance(fn, torch._ops.OpOverloadPacket): + fns.extend(getattr(fn, overload) for overload in fn.overloads()) # noqa: B909 + + self.fns = fns + self.fns_set = OrderedSet(fns) + self.users = users + + @property + @abstractmethod + def op(self) -> str: ... + + def fns_repr(self) -> str: + first_repr = self.fns[0] + if not isinstance(first_repr, str): + first_repr = first_repr.__name__ + + if len(self.fns) > 1: + return f"[{first_repr}, ...]" + elif self.fns[0] is getattr(torch, first_repr, None): + return f"torch.{first_repr}" + elif self.fns[0] is getattr(operator, first_repr, None): + return f"operator.{first_repr}" + elif isinstance(self.fns[0], torch._ops.OpOverload): + return str(self.fns[0]) + else: + return first_repr + + def __repr__(self) -> str: + if self.users is MULTIPLE: + comma_users = ", MULTIPLE" + elif self.users != 1: + comma_users = f", {self.users})" + else: + comma_users = "" + return f"{self.__class__.__name__}({self.fns_repr()}{comma_users})" + + def has_multiple_users(self) -> bool: + return isinstance(self.users, Multiple) or self.users > 1 + + def find_anchor_nodes( + self, ctx: MatchContext, searched: OrderedSet[torch.fx.Node] + ) -> Generator[Optional[torch.fx.Node], None, None]: + raise NotImplementedError + + def _match_fns(self, node: torch.fx.Node) -> bool: + return ( + isinstance(node, torch.fx.Node) + and node.op == self.op + and extract_target(node) in self.fns_set + ) + + def _match_users(self, node: torch.fx.Node, ctx: MatchContext) -> bool: + return ( + self in ctx.outputs + or self.users is MULTIPLE + or len(node.users) == self.users + ) + + def pattern_eq(self, other: Any) -> bool: + other = typing.cast(Self, other) # super makes sure this is true + return ( + super().pattern_eq(other) + and self.op == other.op + and self.fns == other.fns + and self.users == other.users + ) + + +_SimpleSpec = tuple[Any, ...] + + +class _TargetArgsExpr(_TargetExpr): + """ + Base class for filtering match by node.{target,args,kwargs} + """ + + def __init__( + self, + fns: Union[torch.fx.node.Target, str, Sequence[Any]], + *args: Any, + _users: Union[int, Multiple] = 1, + **kwargs: Any, + ) -> None: + super().__init__(fns, _users) + self.args = tuple(args) + self.kwargs = dict(kwargs) + if any( + isinstance(x, (dict, list, tuple)) + for x in itertools.chain(args, kwargs.values()) + ): + self.flatten = self.pytree_flatten + else: + self.flatten = self.simple_flatten + self.flat_args_kwargs = self.flatten(self.args, self.kwargs) + + @staticmethod + def simple_flatten( + args: Sequence[Any], kwargs: Mapping[Any, Any] + ) -> tuple[Sequence[Any], Union[_SimpleSpec, pytree.TreeSpec]]: + values = (*args, *kwargs.values()) + spec = (len(args), *kwargs.keys()) + return values, spec + + @staticmethod + def pytree_flatten( + args: Sequence[Any], kwargs: Mapping[Any, Any] + ) -> tuple[Sequence[Any], Union[_SimpleSpec, pytree.TreeSpec]]: + type_mapping: dict[type, type] = { + immutable_list: tuple, + list: tuple, + immutable_dict: dict, + } + + def convert_type(x: Any) -> Any: + cls = type(x) + convert_fn = type_mapping.get(cls) + if convert_fn is not None: + return pytree.tree_map( + convert_type, + convert_fn(x), + is_leaf=lambda x: type(x) in type_mapping, + ) + return x + + normalized_args_tree = pytree.tree_map( + convert_type, + (args, kwargs), + is_leaf=lambda x: type(x) in type_mapping, + ) + flat, spec = pytree.tree_flatten(normalized_args_tree) + return flat, spec + + def __repr__(self) -> str: + args = [ + self.fns_repr(), + *map(repr, self.args), + *[f"{k}={v}" for k, v in self.kwargs.items()], + ] + if self.users is MULTIPLE: + args.append("_users=MULTIPLE") + elif self.users != 1: + args.append(f"_users={self.users}") + return f"{self.__class__.__name__}({', '.join(args)})" + + def pretty_print(self, pp: PatternPrettyPrinter) -> str: + args = [ + self.fns_repr(), + *(pp.pretty_print(x) for x in self.args), + *[f"{k}={pp.pretty_print(v)}" for k, v in self.kwargs.items()], + ] + if self.users is MULTIPLE: + args.append("_users=MULTIPLE") + elif self.users != 1: + args.append(f"_users={self.users}") + + joiner_str = ", " + return f"{self.__class__.__name__}({joiner_str.join(args)})" + + def _match(self, node: torch.fx.Node, ctx: MatchContext) -> MatchResult: + if not self._match_fns(node) or len(node.args) != len(self.args): + return FailedMatch("function_mismatch: node={}, pattern={}", node, self) + + if not self._match_users(node, ctx): + return FailedMatch("multiple_users {}", self) + + _args = node.args + _kwargs = node.kwargs + if len(_kwargs) < len(self.kwargs): + from torch.fx.operator_schemas import normalize_function + + assert callable(node.target) + normalized_args_and_kwargs = normalize_function( + node.target, node.args, node.kwargs + ) + + if normalized_args_and_kwargs is None: + return FailedMatch("function_mismatch: node={}, pattern={}", node, self) + else: + _args, _kwargs = normalized_args_and_kwargs + if len(_args) == len(self.args) and len(_kwargs) >= len(self.kwargs): + _kwargs = {i: _kwargs[i] for i in _kwargs if i in self.kwargs} + else: + return FailedMatch( + "function_mismatch: node={}, pattern={}", node, self + ) + else: + _kwargs = {i: _kwargs[i] for i in _kwargs if i in self.kwargs} + + node_items, node_spec = self.flatten(_args, _kwargs) + self_items, self_spec = self.flat_args_kwargs + if node_spec != self_spec: + return FailedMatch("args_structure {} {}", node_spec, self_spec) + assert len(node_items) == len(self_items) + + m = Match(ctx, self) + for pattern, child_node in zip(self_items, node_items): + if isinstance(pattern, PatternExpr): + child_match = ctx.match(pattern, child_node) + if not is_match(child_match): + return child_match + m.extend(child_match) + elif isinstance(child_node, torch.fx.Node) or child_node != pattern: + return FailedMatch( + "constant_args: {} {!r}!={pattern!r}", + node, + child_node, + pattern=pattern, + ) + m.nodes.append(node) + m.targets[self] = node.target + return m + + def find_anchor_nodes( + self, ctx: MatchContext, searched: OrderedSet[torch.fx.Node] + ) -> Generator[Optional[torch.fx.Node], None, None]: + """ + This is used when we are matching a pattern with multiple outputs. + There is a partial match (stored in ctx) and we want to walk + this pattern to find a connection to an already-matched node. + + Yields candidate nodes that `self._match` might like. + """ + if self in ctx.pattern_to_node: + yield ctx.pattern_to_node[self] + return + + for pattern in self.flat_args_kwargs[0]: + if isinstance(pattern, PatternExpr): + for other_node in pattern.find_anchor_nodes(ctx, searched): + if not isinstance(other_node, torch.fx.Node): + continue + for node in other_node.users: + if node not in searched: + if self._match_fns(node): + yield node + searched.add(node) + + def pattern_eq(self, other: Any) -> bool: + other = typing.cast(Self, other) # super makes sure this is true + return ( + super().pattern_eq(other) + and self.flat_args_kwargs[1] == other.flat_args_kwargs[1] + and all( + a.pattern_eq(b) if isinstance(a, PatternExpr) else a == b + for a, b in zip(self.flat_args_kwargs[0], other.flat_args_kwargs[0]) + ) + ) + + +class CallFunction(_TargetArgsExpr): + """ + Matches a call_function node in the FX graphs: `fns[i](*args, **kwargs)` + """ + + op = "call_function" + + +class CallMethod(_TargetArgsExpr): + """ + Matches a call_method node in the FX graphs: `fns[i].method(*args, **kwargs)` + """ + + op = "call_method" + + +class CallModule(_TargetArgsExpr): + """ + Matches a call_module node in the FX graphs: `module(*args, **kwargs)` + """ + + op = "call_module" + + +class _TargetExprVarArgs(_TargetExpr): + """ + Matches a call_function node with any arguments which are passed into the pattern + """ + + def _match(self, node: torch.fx.Node, ctx: MatchContext) -> MatchResult: + if not self._match_fns(node): + return FailedMatch("function_mismatch") + + if not self._match_users(node, ctx): + return FailedMatch("multiple_users") + + m = Match(ctx, self) + m.nodes.append(node) + m.targets[self] = node.target + m.args.extend(node.args) + m.kwargs.update(node.kwargs) + return m + + +class CallFunctionVarArgs(_TargetExprVarArgs): + op = "call_function" + + +class CallMethodVarArgs(_TargetExprVarArgs): + op = "call_method" + + +class CallModuleVarArgs(_TargetExprVarArgs): + op = "call_module" + + +class ListOf(PatternExpr): + """ + Matches a repeated pattern + """ + + def __init__(self, pattern: PatternExpr, partial: bool = False) -> None: + super().__init__() + assert isinstance(pattern, PatternExpr) + self.pattern = pattern + self.partial = partial + + def __repr__(self) -> str: + return f"{self.__class__.__name__}({self.pattern})" + + def _match(self, node: list[torch.fx.Node], ctx: MatchContext) -> MatchResult: # type: ignore[override] + if not isinstance(node, (list, tuple)) or len(node) == 0: + return FailedMatch("non_list") + m = Match(ctx, self) + # Propagating patterns with multiple users will ensure we don't revisit + # the same nodes + pattern_to_node = ctx.filter_multi_user_patterns() + matched = False + for i, child_node in enumerate(node): + child_ctx = MatchContext( + ctx.outputs, pattern_to_node, graph=child_node.graph + ) + child_match = child_ctx.match(self.pattern, child_node) + pattern_to_node = child_ctx.filter_multi_user_patterns() + if not is_match(child_match): + if not self.partial: + return FailedMatch("list[{}]: {}", i, child_match) + continue + matched = True + m.extend(child_match.bundle()) + if not matched: + return FailedMatch("list: no_match") + return m.bundle() + + def pattern_eq(self, other: Any) -> bool: + other = typing.cast(Self, other) # super makes sure this is true + return ( + super().pattern_eq(other) + and self.pattern.pattern_eq(other.pattern) + and self.partial == other.partial + ) + + +class MultiOutputPattern(PatternExpr): + outputs: list[Optional[PatternExpr]] + + def __init__(self, outputs: Sequence[Optional[PatternExpr]]) -> None: + super().__init__() + assert isinstance(outputs[0], _TargetExpr) + assert all(x is None or isinstance(x, PatternExpr) for x in outputs), outputs + self.outputs = list(outputs) + self.op = outputs[0].op + + @property + def fns(self) -> Union[Callable[..., Any], str, Sequence[Any]]: + # This cast is checked above in __init__() + output = typing.cast(_TargetExpr, self.outputs[0]) + return output.fns + + def __repr__(self) -> str: + return f"{self.__class__.__name__}({self.outputs})" + + def pretty_print(self, pp: PatternPrettyPrinter) -> str: + args = [pp.pretty_print(x) for x in self.outputs] + joiner_str = f",\n{' '}" + str_out = f"{self.__class__.__name__}([{joiner_str.join(args)}" + str_out = f"{str_out}\n])" + return str_out + + def _match(self, node: torch.fx.Node, ctx: MatchContext) -> MatchResult: + output = typing.cast(_TargetExpr, self.outputs[0]) + m = ctx.match(output, node) + if not is_match(m): + return m + + for pattern in self.outputs[1:]: + if pattern is None: + continue + child_match = self._match_from_anchors(pattern, ctx) + if not is_match(child_match): + return child_match + m.extend(child_match) + + return m + + def _match_from_anchors( + self, pattern: PatternExpr, ctx: MatchContext + ) -> MatchResult: + prior = dict(ctx.pattern_to_node) + m: MatchResult = FailedMatch("no anchor found") + for node in pattern.find_anchor_nodes(ctx, OrderedSet()): + m = ctx.match(pattern, node) + if is_match(m): + return m + # revert any partial matches + ctx.pattern_to_node = dict(prior) + return m + + def match(self, node: torch.fx.Node) -> MatchResult: + try: + return MatchContext(self.outputs, graph=node.graph).match(self, node) + except FailedMatch as e: + return e + + def pattern_eq(self, other: Any) -> bool: + other = typing.cast(Self, other) # super makes sure this is true + return ( + super().pattern_eq(other) + and len(self.outputs) == len(other.outputs) + and all( + a.pattern_eq(b) if isinstance(a, PatternExpr) else a == b + for a, b in zip(self.outputs, other.outputs) + ) + ) + + +class RepeatedExpr(PatternExpr): + """ + Checks for a repeated pattern. Useful for repeated operations after a node such as `split` or `unbind` + """ + + def __init__(self, inner_pattern: _TargetExpr) -> None: + super().__init__() + self.inner_pattern = inner_pattern + self.op = inner_pattern.op + + @property + def fns(self) -> Sequence[FnsType]: + return self.inner_pattern.fns + + def _match(self, node: torch.fx.Node, ctx: MatchContext) -> MatchResult: + m = ctx.match(self.inner_pattern, node) + if not is_match(m): + return m + ctx.pattern_to_node.pop( + self.inner_pattern, + ) + # Check all anchor nodes match the pattern + for anchor_node in self.inner_pattern.find_anchor_nodes(ctx, OrderedSet()): + anchor_m = MatchContext([self], graph=node.graph).match( + self.inner_pattern, anchor_node + ) + if not is_match(anchor_m): + return anchor_m + m.extend(anchor_m) + return m + + def pattern_eq(self, other: Any) -> bool: + other = typing.cast(Self, other) # super makes sure this is true + return super().pattern_eq(other) and self.inner_pattern.pattern_eq( + other.inner_pattern + ) + + +class PatternPrettyPrinter: + """ + Serializes Patterns to executable python. + XXX: currently only used and tested for fuse attention patterns. May not cover + all patterns. + """ + + def __init__(self) -> None: + self.namespace = torch.fx.graph._Namespace() + self.memoized_objs_names: dict[PatternExpr, str] = {} + self.memoized_objs_pp: dict[PatternExpr, str] = {} + + @staticmethod + @functools.cache + def run(obj: PatternExpr, output_name: str = "output") -> str: + """ + Serializes obj to python code with obj written out to `output_name` + """ + + pp = PatternPrettyPrinter() + assert hasattr(obj, "pretty_print") + out_str = obj.pretty_print(pp=pp) + + output = [ + f"{pp.memoized_objs_names[key]} = {pp.memoized_objs_pp[key]}" + for key in pp.memoized_objs_names + ] + + output.append(f"{output_name} = {out_str}") + + return "\n".join(output) + + def pretty_print(self, obj: Any) -> str: + if isinstance(obj, _TargetArgsExpr): + if memoized_name := self.memoized_objs_names.get(obj): + return memoized_name + else: + return self.memoize(obj) + if hasattr(obj, "pretty_print"): + return obj.pretty_print(self) + + return repr(obj) + + def memoize(self, obj: _TargetArgsExpr) -> str: + obj_str = obj.pretty_print(self) + obj_name = obj.fns_repr() + for prefix in ("aten.", "torch.", "prims."): + obj_name = obj_name.replace(prefix, "") + + tmp_name = self.namespace.create_name(obj_name, None) + self.memoized_objs_names[obj] = tmp_name + self.memoized_objs_pp[obj] = obj_str + return tmp_name + + +class _PassDictsType(Protocol): + def __getitem__( + self, k: tuple[str, torch.fx.node.Target] + ) -> list[PatternEntry]: ... + + +@dataclasses.dataclass +class PatternEntry: + pattern: PatternExpr + extra_check: Callable[[Match], bool] + + def apply(self, match: Match, graph: torch.fx.Graph, node: torch.fx.Node) -> None: + raise NotImplementedError + + def register( + self, + pass_dicts: Union[_PassDictsType, Sequence[_PassDictsType]], + target: Union[torch.fx.node.Target, None] = None, + prepend: bool = False, + ) -> None: + if target is None: + assert hasattr(self.pattern, "fns") + for fn in self.pattern.fns: + self.register(pass_dicts, fn, prepend=prepend) + elif isinstance(pass_dicts, (dict, PatternMatcherPass)): + assert hasattr(self.pattern, "op") + if prepend: + pass_dicts[(self.pattern.op, target)].insert(0, self) + else: + pass_dicts[(self.pattern.op, target)].append(self) + else: + pass_dicts = typing.cast(Sequence[_PassDictsType], pass_dicts) + for x in pass_dicts: + self.register(x, target, prepend=prepend) + + +@dataclasses.dataclass +class LoweringPatternEntry(PatternEntry): + handler: Callable[..., Any] + + def apply(self, match: Match, graph: torch.fx.Graph, node: torch.fx.Node) -> None: + handler = functools.wraps(self.handler)(functools.partial(self.handler, match)) + with graph.inserting_before(node): + replacement = graph.call_function(handler, tuple(match.args), match.kwargs) + replacement.meta.update(node.meta) + node.replace_all_uses_with(replacement) + assert match.nodes[-1] is node + match.erase_nodes() + + +@dataclasses.dataclass +class GraphPatternEntry(PatternEntry): + """ + A pattern that runs a function on the FX graph + """ + + handler: Callable[..., Any] + + def apply(self, match: Match, graph: torch.fx.Graph, node: torch.fx.Node) -> None: + with graph.inserting_before(node): + self.handler(match, *match.args, **match.kwargs) + + +@dataclasses.dataclass +class ReplacementPatternEntry(PatternEntry): + """ + The replacement pattern for the graph + """ + + normalize_args: Callable[..., list[Any]] + + @staticmethod + def replace_with_graph( + match: Match, + graph: torch.fx.Graph, + replacement_graph: Union[torch.fx.Graph, torch.fx.GraphModule], + args: Sequence[torch.fx.Node], + ) -> None: + """ + Inserts the replacement graph into the toplevel graph at the match + """ + + added_replacement_nodes: list[torch.fx.Node] = [] + + class Replacer(torch.fx.Interpreter): + call_method = None # type: ignore[assignment] + call_module = None # type: ignore[assignment] + get_attr = None # type: ignore[assignment] + + def run_node(self, node: torch.fx.Node) -> Any: + if node.op in ("placeholder", "output"): + return super().run_node(node) + target = node.target + args, kwargs = self.fetch_args_kwargs_from_env(node) + if node.op == "call_function": + assert callable(target) + result = graph.call_function(target, args, kwargs) + added_replacement_nodes.append(result) + _transfer_meta( + new_meta=result.meta, + old_node=node, + pass_name="Interpreter_Replacer", + ) + # This function copy-pastes the replacement graph into + # the graph. If the replacement graph had any eager_input_vals, + # or val/tensor_meta, we propagate those over. + if "eager_input_vals" in node.meta: + result.meta["eager_input_vals"] = node.meta["eager_input_vals"] + if "val" in node.meta and "val" not in result.meta: + result.meta["val"] = node.meta["val"] + if isinstance(node.meta["val"], torch.Tensor): + assert "tensor_meta" in node.meta + result.meta["tensor_meta"] = node.meta["tensor_meta"] + return result + if node.op == "get_attr": + # If the replacement graph contains a HOP, the subgraphs of the HOP are "get_attr" nodes. + # We need to fetch the subgraph of the HOP then register the subgraph to the replaced graph's root. + from torch._higher_order_ops.utils import ( + unique_graph_name_with_root, + ) + + sub_gm = super().get_attr(target, args, kwargs) + if not isinstance(sub_gm, torch.fx.GraphModule): + raise NotImplementedError( + f"NYI: replacement_graph.{target} is not a graph module. Got {sub_gm}." + ) + assert graph.owning_module is not None + graph_name = None + for n, mod in graph.owning_module.named_modules(): + if sub_gm is mod: + graph_name = n + break + if graph_name is None: + assert isinstance(target, str) + _, graph_name = unique_graph_name_with_root( + # pyrefly: ignore [unbound-name] + graph.owning_module, + target, + ) + # pyrefly: ignore [unbound-name] + graph.owning_module.register_module(graph_name, sub_gm) + # pyrefly: ignore [unbound-name] + getattr_node = graph.get_attr(graph_name) + added_replacement_nodes.append(getattr_node) + return getattr_node + + raise NotImplementedError(f"unhandled {node}") + + output_nodes = match.output_nodes() + + if len(output_nodes) == 1: + last_node = output_nodes[0] + else: + assert output_nodes[0] + nodes = list(output_nodes[0].graph.nodes) + indices = [ + (nodes.index(n), n) + for n in output_nodes + if isinstance(n, torch.fx.Node) + ] + last_node = min(indices, key=operator.itemgetter(0))[1] + + def percolate_tags( + node: torch.fx.Node, + tag_name: str, + tag_value: str, + input_stops: OrderedSet[torch.fx.Node], + ) -> None: + queue = [node] + visited = OrderedSet[torch.fx.Node]() + + while queue: + arg = queue.pop() + if ( + arg not in visited + and arg not in input_stops + and hasattr(arg, "meta") + ): + visited.add(arg) + arg.meta[tag_name] = tag_value + queue.extend(arg.all_input_nodes) + + with graph.inserting_before(last_node): + assert isinstance(replacement_graph, torch.fx.GraphModule) + replacement = Replacer(replacement_graph).run(*args) + if isinstance(replacement, torch.fx.Node): + replacement = [replacement] + + def maybe_getitem(node: torch.fx.Node) -> Any: + if node.op != "call_function": + return None + if node.target != operator.getitem: + return None + assert len(node.args) == 2 + return node.args[1] + + def replace( + old: Union[torch.fx.Node, None], + new: Union[torch.fx.Node, Sequence[torch.fx.Node], None], + ) -> None: + def filter_nodes_in_newly_added_nodes(node: torch.fx.Node) -> bool: + # Do not replace the use of a node if it is being used by + # nodes in the replaced graph + return node not in added_replacement_nodes + + if old is None: + assert new is None + return + assert isinstance(old, torch.fx.Node) + if new is None: + old.replace_all_uses_with( + None, # type: ignore[arg-type] + delete_user_cb=filter_nodes_in_newly_added_nodes, + ) + if len(old.users) == 0: + graph.erase_node(old) + return + if isinstance(new, torch.fx.Node): + if "val" not in new.meta: + new.meta.update(old.meta) + + # Preserve the recompute tags in the replacement graph. We + # look at the recompute tags of the original output node to + # propagate the tag from the output all the way to the input + # args (named as args in the replace_with_graph). + # Note that this is best effort. Since patterns are from + # many to many, there is no easy way to correctly map the + # recomputable tags. It is possible in some scenarios that we + # incorrectly tag some nodes as recomputables. + for tag_name in ["recompute", "ac_graph_id"]: + if tag_name in old.meta: + percolate_tags( + new, tag_name, old.meta[tag_name], OrderedSet(args) + ) + + old.replace_all_uses_with( + new, delete_user_cb=filter_nodes_in_newly_added_nodes + ) + if len(old.users) == 0: + graph.erase_node(old) + return + + # `new` is not a node: it's a list of nodes. + # + # This happens when we want to replace a node that has a single + # packed return with multiple unpacked returns. We need to do + # some graph surgery here. + # + # Example: + # def original_graph(x): + # a = op(x) + # b = a[0] + # c = a[1] + # ... + # + # Assume that we want to replace op(x) with the graph + # def new_op(x): + # w = x + 1 + # z = x + 2 + # return (w, z) + # + # We need to replace `op` with the contents of `new_op`, + # and then rewrite a[0] to be w and a[1] to be z, as so: + # def new_graph(x): + # w = x + 1 + # z = x + 2 + # b = w + # c = z + # ... + old_uses = list(old.users.keys()) + for user in old_uses: + idx = maybe_getitem(user) + if idx is None: + raise AssertionError( + "Deleted index from getitem, did you erase the index and not properly replace it?" + ) + replace(user, new[idx]) + graph.erase_node(old) + + if len(output_nodes) == len(replacement): + for old, new in zip(output_nodes, replacement): + replace(old, new) + else: + assert len(output_nodes) == 1 + replace(output_nodes[0], replacement) + + match.erase_nodes() + + def apply(self, match: Match, graph: torch.fx.Graph, node: torch.fx.Node) -> None: + assert match.replacement_graph is not None + self.replace_with_graph( + match, + graph, + match.replacement_graph, + self.normalize_args(*match.args, **match.kwargs), + ) + + +def _return_true(match: Match) -> bool: + return True + + +def log_trace_failure(search_fn: Callable[..., Any], e: RuntimeError) -> None: + log.info( + "Replacement pattern %s failed to apply due to shape mismatch: %s", + search_fn.__name__, + e, + ) + + +def check_and_add_duplicate_pattern( + pattern: PatternExpr, + graph: Optional[torch.fx.Graph], + seen_patterns: dict[str, list[Optional[str]]], + skip_duplicates: bool = False, +) -> bool: + """ + Check if a pattern is a duplicate. Because we ignore certain types in searching, but not + in matching, use the graph to distinguish equivalent search patterns. + + Returns True if a duplicate is found and `skip_duplicates=True` is passed in. Errors if + `skip_duplicates` is False and a duplicate is found. + """ + + pattern_repr = PatternPrettyPrinter.run(pattern) + equiv_pattern_reprs = seen_patterns.get(pattern_repr) + if not equiv_pattern_reprs: + seen_patterns[pattern_repr].append(str(graph) if graph else None) + return False + + if graph is None: + if skip_duplicates: + return True + torch._check( + False, + lambda: f"Duplicate pattern: {pattern_repr} with no graph", + ) + + new_graph_str = str(graph) + for graph_str in equiv_pattern_reprs: + if new_graph_str != graph_str: + continue + if skip_duplicates: + return True + torch._check( + False, + lambda: f"Duplicate pattern: {pattern_repr} with duplicated match graph {graph_str} ", + ) + equiv_pattern_reprs.append(new_graph_str) + return False + + +def register_replacement( + search_fn: SearchFn, + replace_fn: ReplaceFn, + example_inputs: Iterable[Any], + trace_fn: TraceFn, + pass_dicts: Union[_PassDictsType, Sequence[_PassDictsType]], + extra_check: Callable[[Match], bool] = _return_true, + scalar_workaround: Union[dict[str, Union[float, int]], None] = None, + exclusive_arg_names: Sequence[str] = (), + search_fn_pattern: Union[PatternExpr, None] = None, + skip_duplicates: bool = False, +) -> bool: + """ + Create a replacement rule based on example functions that get traced + to create patterns. This supports both training and inference when + run on a joint forward+backward graph. + + Args: + search_fn: traced to give original pattern + replace_fn: traced to give replacement graph + example_inputs: example inputs for initial trace + trace_fn: fwd_only or joint_fwd_bwd + pass_dict: dict of passes to register to + extra_check: additional check to run on match(using real shapes) + """ + argnames_static = [*inspect.signature(search_fn).parameters.keys()] + + if inspect.ismethod(search_fn): + search_fn = _wrap_bound_method(search_fn, argnames_static) + + if inspect.ismethod(replace_fn): + replace_argnames = [*inspect.signature(replace_fn).parameters.keys()] + replace_fn = _wrap_bound_method(replace_fn, replace_argnames) + + def check_fn(match: Match) -> bool: + """ + Often shapes get burned into the pattern, so our initial match ran with + `ignore_types=(int, ...)`. + + Recheck the match with the correct shapes. + """ + argnames = list(argnames_static) + for name in argnames: + if name not in match.kwargs: + raise RuntimeError( + f"Not all inputs to pattern found in match.kwargs. Perhaps one " + f"of the inputs is unused? argnames={argnames}, match.kwargs={match.kwargs}" + ) + + args = list( + torch.fx.map_arg( + [match.kwargs[name] for name in argnames], lambda n: n.meta["val"] + ) + ) + + sym_args: list[torch.SymInt] = [] + fake_mode = torch._dynamo.utils.detect_fake_mode(args) + assert fake_mode is not None + with fake_mode: + for i, grad in enumerate(requires_grad): + if isinstance(args[i], torch.Tensor): + if grad and is_integer_dtype(args[i].dtype): + return False + + args[i] = torch.empty_strided( + args[i].size(), + args[i].stride(), + dtype=args[i].dtype, + device=args[i].device, + requires_grad=grad, + ) + for v in itertools.chain(args[i].shape, args[i].stride()): + if isinstance(v, torch.SymInt) and all( + statically_known_true(v != a) for a in sym_args + ): + sym_args.append(v) + + # If we were given a pre-traced pattern then use that instead of + # retracing. Note that this means the pattern has to be independent + # of its args. + specific_pattern = search_fn_pattern + + if not specific_pattern: + if sym_args: + # AOT Autograd and make fx will dedupe symbolic shape size + # accesses of sym ints that appear as inputs + # We don't want the sym_size uses to interfere with pattern matching + # so we provide them as inputs. + # Later, when we actually do the replacement, the symbolic shape + # sizes will get re-traced and added to the graph. + + def search_fn_new(*args_new: Any) -> Any: + return search_fn(*args_new[len(args_new) - len(args) :]) + + try: + # pyrefly: ignore [bad-argument-type] + specific_graph = trace_fn(search_fn_new, sym_args + args) + except RuntimeError as e: + log_trace_failure(search_fn, e) + return False + + # correct argnames in the graph + sym_arg_names = [] + for i, placeholder in zip( + range(len(sym_args) + len(args)), + specific_graph.graph.nodes, + ): + if i < len(sym_args): + sym_arg_names.append(placeholder.target) + continue + + with specific_graph.graph.inserting_after(placeholder): + new_node = specific_graph.graph.placeholder( + argnames[i - len(sym_args)] + ) + new_node.target = new_node.name + placeholder.replace_all_uses_with(new_node) + specific_graph.graph.erase_node(placeholder) + + argnames = sym_arg_names + argnames + else: + try: + specific_graph = trace_fn(search_fn, args) + except RuntimeError as e: + log_trace_failure(search_fn, e) + return False + + specific_pattern = fx_to_pattern( + specific_graph, + argnames=argnames, + exclusive_arg_names=exclusive_arg_names, + scalar_workaround=scalar_workaround, + ) + + node = match.output_nodes()[0] + assert node is not None + specific_pattern_match = specific_pattern.match(node) + + if os.environ.get("TORCHINDUCTOR_PATTERN_MATCH_DEBUG") == node.name: + log.warning( + "Specific pattern match: %s%s %s %s", + node, + node.args, + specific_pattern_match, + specific_pattern, + ) + + if is_match(specific_pattern_match) and extra_check(specific_pattern_match): + # trace the pattern using the shapes from the user program + match.replacement_graph = trace_fn(replace_fn, args) + if len(match.nodes) == 1: + for n in match.replacement_graph.graph.nodes: + _transfer_meta( + new_meta=n.meta, + old_node=match.nodes[0], + pass_name="replacement", + ) + return True + return False + + def normalize_args(**kwargs: Any) -> list[Any]: + args = [kwargs.pop(name) for name in argnames_static] + for i in range(1, len(kwargs) + 1): + if f"tangents_{i}" not in kwargs: + break + args.append(kwargs.pop(f"tangents_{i}")) + assert not kwargs, f"leftover kwargs: {kwargs!r}" + return args + + if trace_fn is joint_fwd_bwd: + # If inference mode is enabled during compilation, assume that we don't + # want to match on any training graph patterns + if torch.is_inference_mode_enabled(): + return False + + # TODO: Revisit the functionalize_rng_ops for lowmem dropout + with functorch_config.patch(functionalize_rng_ops=False): + requires_grad: list[bool] = [ + isinstance(x, torch.Tensor) and x.requires_grad for x in example_inputs + ] + if search_fn_pattern is None: + pattern, gm = gen_pattern_and_search_gm( + search_fn, + example_inputs, + trace_fn, + scalar_workaround, + exclusive_arg_names, + ) + else: + pattern = search_fn_pattern + gm = None + + for pattern_matcher_pass in ( + pass_dicts if isinstance(pass_dicts, Sequence) else [pass_dicts] + ): + if isinstance(pattern_matcher_pass, PatternMatcherPass): + if check_and_add_duplicate_pattern( + pattern, + gm.graph if gm else None, + pattern_matcher_pass.seen_patterns, + skip_duplicates=skip_duplicates, + ): + return False + + pattern = ReplacementPatternEntry( + pattern=pattern, + extra_check=check_fn, + normalize_args=normalize_args, + ) + pattern.register(pass_dicts) + return pattern.pattern # type: ignore[return-value] + + +_serialized_patterns: OrderedSet[str] = OrderedSet() + + +def _serialize_pattern( + unique_name: str, + search_fn: SearchFn, + example_inputs: Sequence[Any], + trace_fn: TraceFn, + scalar_workaround: Union[dict[str, Union[float, int]], None], +) -> PatternExpr: + def get_file_template() -> str: + auto_generated_msg = textwrap.dedent( + """\ + # This is an auto-generated file. Please do not modify it by hand. + # To re-generate, run: + # cd ~/pytorch && python torchgen/fuse/gen_patterns.py + """ + ) + + file_template = textwrap.dedent( + """\ + # mypy: ignore-errors + + # noqa: F401, E501 + {msg} + import torch + import torch._inductor + import operator + + aten = torch.ops.aten + prims = torch.ops.prims + + """ + ).format(msg=auto_generated_msg) + + pattern_matcher_imports = [] + for name in dir(torch._inductor.pattern_matcher): + attr = getattr(torch._inductor.pattern_matcher, name) + try: + if isinstance(attr, type) and issubclass( + attr, (PatternExpr, _TargetExpr) + ): + # pyrefly: ignore [bad-argument-type] + pattern_matcher_imports.append(name) + except TypeError: + pass + + formatted_imports = ",\n ".join(pattern_matcher_imports) + formatted_imports = f"from torch._inductor.pattern_matcher import (\n {formatted_imports},\n)\n" + return f"{file_template}{formatted_imports}" + + if not SERIALIZED_PATTERN_PATH.is_dir(): + raise RuntimeError( + f"Could not find serialized patterns directory at {SERIALIZED_PATTERN_PATH}" + ) + + pattern_name = search_fn.__name__ + + from torch._functorch import config as functorch_config + + with functorch_config.patch(functionalize_rng_ops=False): + pattern = gen_pattern(search_fn, example_inputs, trace_fn, scalar_workaround) + + serialized_pattern = PatternPrettyPrinter.run(pattern, output_name=unique_name) + if pattern_name not in _serialized_patterns: + write_mode = "w" + _serialized_patterns.add(pattern_name) + else: + write_mode = "a" + + file_template = get_file_template() + + with open(SERIALIZED_PATTERN_PATH / f"{pattern_name}.py", write_mode) as f: + if write_mode == "w": + f.write(file_template) + else: + f.write("\n\n") + f.write(serialized_pattern) + f.write("\n") + + return pattern + + +SERIALIZED_PATTERN_PATH = Path(__file__).parent / "fx_passes" / "serialized_patterns" + +# This is the set of serialized patterns that we've registered. Used by +# test_serialized_patterns_up_to_date() to ensure the patterns are up +# to date. +_known_precompiled_patterns: list[ + tuple[ + Any, + Iterable[Any], + Callable[[Callable[..., Any], Iterable[Any]], torch.fx.GraphModule], + Any, + PatternExpr, + ] +] = [] + + +def gen_register_replacement( + unique_name: str, + search_fn: SearchFn, + replace_fn: ReplaceFn, + example_inputs: Iterable[Any], + trace_fn: TraceFn, + pass_dicts: Union[_PassDictsType, Sequence[_PassDictsType]], + extra_check: Callable[[Match], bool] = _return_true, + scalar_workaround: Union[dict[str, Union[float, int]], None] = None, + exclusive_arg_names: Sequence[str] = (), + skip_duplicates: bool = False, +) -> None: + # Make sure the example_inputs is materialized. + example_inputs = tuple(example_inputs) + + if "PYTORCH_GEN_PATTERNS" in os.environ: + pat = _serialize_pattern( + unique_name, search_fn, example_inputs, trace_fn, scalar_workaround + ) + else: + pattern_name = search_fn.__name__ + m = importlib.import_module( + f"torch._inductor.fx_passes.serialized_patterns.{pattern_name}" + ) + if not m or not hasattr(m, unique_name): + log.warning( + "Precompiled pattern %r not found. Run torchgen/fuse/gen_patterns.py.", + unique_name, + ) + pat = getattr(m, unique_name) + + for arg in pytree.tree_iter(example_inputs): + if isinstance(arg, FakeTensor) and arg.constant is not None: + # This can be a problem - small fake tensors (e.g. `tensor(2)`) will + # hold onto their original constant value - and by stashing it here + # will cause a memory leak if the constant value is on GPU. + # Since this is just an optimization we can clear it out. + arg.constant = None + + _known_precompiled_patterns.append( + (search_fn, example_inputs, trace_fn, scalar_workaround, pat) + ) + register_replacement( + search_fn, + replace_fn, + example_inputs, + trace_fn, + pass_dicts, + extra_check, + scalar_workaround, + exclusive_arg_names, + search_fn_pattern=pat, + skip_duplicates=skip_duplicates, + ) + + +@functorch_config.patch(functionalize_rng_ops=False) # type: ignore[misc] +def gen_pattern_and_search_gm( + search_fn: SearchFn, + example_inputs: Sequence[Any], + trace_fn: TraceFn, + scalar_workaround: Union[dict[str, Union[float, int]], None] = None, + exclusive_arg_names: Sequence[str] = (), +) -> tuple[PatternExpr, torch.fx.GraphModule]: + argnames = [*inspect.signature(search_fn).parameters.keys()] + + if scalar_workaround is None: + scalar_workaround = {} + flat_inputs = [] + input_idx = 0 # Positional arguments index + + for argname in argnames: + if argname in scalar_workaround: + flat_inputs.append(scalar_workaround[argname]) + else: + flat_inputs.append(example_inputs[input_idx]) + input_idx += 1 + + search_gm = trace_fn(search_fn, flat_inputs) + return ( + fx_to_pattern( + search_gm, + ignore_types=(int, float, list, torch.device, torch.dtype), + argnames=argnames, + scalar_workaround=scalar_workaround, + exclusive_arg_names=exclusive_arg_names, + ), + search_gm, + ) + + +def gen_pattern( + search_fn: SearchFn, + example_inputs: Sequence[Any], + trace_fn: TraceFn, + scalar_workaround: Union[dict[str, Union[float, int]], None] = None, + exclusive_arg_names: Sequence[str] = (), +) -> PatternExpr: + return gen_pattern_and_search_gm( + search_fn, example_inputs, trace_fn, scalar_workaround, exclusive_arg_names + )[0] + + +def register_lowering_pattern( + pattern: PatternExpr, + extra_check: Callable[[Match], bool] = _return_true, + *, + pass_dict: _PassDictsType, + prepend: bool = False, +) -> Callable[[Callable[..., Any]], Callable[..., Any]]: + """ + Register an aten to inductor IR replacement pattern. The decorated + function is saved and then called a lowering time allowing direct + pattern to inductor IR conversion. + """ + + def decorator(handler: Callable[..., Any]) -> Callable[..., Any]: + assert callable(handler) + LoweringPatternEntry( + pattern=pattern, extra_check=extra_check, handler=handler + ).register(pass_dict, prepend=prepend) + handler._inductor_lowering_function = True # type: ignore[attr-defined] + return handler + + return decorator + + +def register_graph_pattern( + pattern: PatternExpr, + extra_check: Callable[[Match], bool] = _return_true, + *, + pass_dict: _PassDictsType, + prepend: bool = False, +) -> Callable[[Callable[..., Any]], Callable[..., Any]]: + """ + Register a pattern that runs a function on the FX graph, allowing + custom transformation code. + """ + + def decorator(handler: Callable[..., Any]) -> Callable[..., Any]: + assert callable(handler) + GraphPatternEntry( + pattern=pattern, extra_check=extra_check, handler=handler + ).register(pass_dict, prepend=prepend) + return handler + + return decorator + + +def is_start_of_fx_graph(graph: torch.fx.Graph, node: torch.fx.Node) -> bool: + # first node in the graph + return node is next(iter(graph.nodes)) + + +# match: copy_, relu_, _set_grad_enabled, manual_seed, _enter_autocast, etc +# doesn't match: __rshift__, etc +_mutation_op_re = re.compile(r"(? bool: + if op.namespace != "inductor": + return False + + # TODO - fix schema + # Dont add any more ! + return op in ( + torch.ops.inductor.accumulate_grad_.default, + torch.ops.inductor.resize_storage_bytes_.default, + ) + + +def is_mutation_op(node: torch.fx.Node) -> bool: + if isinstance( + node.target, torch._ops.OpOverload + ) and not fixme_incorrect_inductor_schema_op(node.target): + return node.target._schema.is_mutable + elif isinstance( + node.target, torch._higher_order_ops.auto_functionalize.AutoFunctionalized + ): + return False + if node.op == "call_function": + assert callable(node.target) + if _mutation_op_re.search(node.target.__name__): + return True + elif node.op == "call_method": + assert isinstance(node.target, str) + if _mutation_op_re.search(node.target): + return True + return node.kwargs.get("out") is not None + + +def same_mutation_regions(a: torch.fx.Node, b: torch.fx.Node) -> bool: + assert "mutation_region_id" in a.meta + assert "mutation_region_id" in b.meta + return a.meta["mutation_region_id"] == b.meta["mutation_region_id"] + + +def get_mutation_region_id(graph: torch.fx.Graph, node: torch.fx.Node) -> int: + n = node + while "mutation_region_id" not in n.meta and not is_start_of_fx_graph(graph, n): + n = n.prev + mutation_region_id = n.meta.get("mutation_region_id", 0) + while n is not node: + n = n.next + if is_mutation_op(n): + mutation_region_id += 1 + n.meta["mutation_region_id"] = mutation_region_id + return mutation_region_id + + +def should_compute_mutation_region_ids(graph: torch.fx.Graph) -> bool: + return "mutation_region_id" not in next(iter(graph.nodes)).meta + + +def compute_mutation_region_ids(graph: torch.fx.Graph) -> None: + mutation_region_id = 0 + for nd in graph.nodes: + if is_mutation_op(nd): + mutation_region_id += 1 + nd.meta["mutation_region_id"] = mutation_region_id + + +def _wrap_bound_method(fn: Any, argnames: list[str]) -> Any: + """ + Wrap a bound method to remove 'self' from its signature for FX tracing. + """ + + def wrapper(*args: Any, **kwargs: Any) -> Any: + return fn(*args, **kwargs) + + params = [ + inspect.Parameter(name, inspect.Parameter.POSITIONAL_OR_KEYWORD) + for name in argnames + ] + wrapper.__signature__ = inspect.Signature(params) # type: ignore[attr-defined] + return wrapper + + +class PatternMatcherPass: + def __init__( + self, + pass_name: Optional[str] = None, + subsystem: Optional[str] = None, + ) -> None: + super().__init__() + self.patterns: defaultdict[ + tuple[str, torch.fx.node.Target], list[PatternEntry] + ] = defaultdict(list) + self.pass_name = pass_name + self.subsystem = subsystem + + # For a particular generated pattern repr, store all of the str representations + # of the graph used to generate them. Because we ignore certain patterns + # in searching, but not in matching, use the graph to distinguish if two equivalent + # searches are actually different. + self.seen_patterns: dict[str, list[Optional[str]]] = defaultdict(list) + + def __getitem__(self, item: tuple[str, torch.fx.node.Target]) -> list[PatternEntry]: + return self.patterns[item] + + def apply(self, gm: Union[torch.fx.GraphModule, torch.fx.Graph]) -> int: + if not self.patterns: + return 0 + if isinstance(gm, torch.fx.GraphModule): + graph = gm.graph + elif isinstance(gm, torch.fx.Graph): + graph = gm + gm = graph.owning_module + else: + raise RuntimeError( + f"The input to PatternMatcherPass must be a GraphModule or a Graph, but got {type(gm)}" + ) + if should_compute_mutation_region_ids(graph): + compute_mutation_region_ids(graph) + get_mutation_region_id_partial = functools.partial( + get_mutation_region_id, graph + ) + count = 0 + nodes = [] + has_call_module = False + for op, target in self.patterns: + if op == "call_module": + has_call_module = True + else: + nodes.append(graph.find_nodes(op=op, target=target, sort=False)) + if has_call_module: + nodes.append(graph.find_nodes(op="call_module", sort=False)) + pass_name = self.pass_name if self.pass_name is not None else "pattern_matcher" + assert isinstance(gm, torch.fx.GraphModule) + with GraphTransformObserver(gm, pass_name, self.subsystem): + for node in sorted(itertools.chain.from_iterable(nodes), reverse=True): + target = extract_target(node) + if node.op == "call_module": + if (node.op, target) not in self.patterns: + continue + + # conservatively not applying pattern for cpu input, + # since some of the patterns induce codegen and split nodes. + # Note: we will only skip cpu compute if disable_cpp_codegen=True + if fallback_node_due_to_unsupported_type(node, allow_cpu_inputs=False): + continue + + for entry in self.patterns[(node.op, target)]: + if node._erased: + break + m = entry.pattern.match(node) + # pattern match crosses mutation barrier - discard + if ( + is_match(m) + and len( + OrderedSet(map(get_mutation_region_id_partial, m.nodes)) + ) + != 1 + ): + continue + if os.environ.get("TORCHINDUCTOR_PATTERN_MATCH_DEBUG") == node.name: + log.warning("%s%s %s %s", node, node.args, m, entry.pattern) + + if is_match(m) and guard_or_false(entry.extra_check(m)): + count += 1 + entry.apply(m, graph, node) + counters[backend]["pattern_matcher_count"] += 1 + counters[backend]["pattern_matcher_nodes"] += len(m.nodes) + return count + + def clear(self) -> None: + self.patterns.clear() + + +def _not_implemented(*args: Any, **kwargs: Any) -> NoReturn: + raise NotImplementedError + + +def fx_to_pattern( + gm: Union[torch.fx.GraphModule, torch.fx.Graph], + ignore_types: Sequence[type[Any]] = (), + argnames: Sequence[str] = (), + scalar_workaround: Union[dict[str, Union[float, int]], None] = None, + exclusive_arg_names: Sequence[str] = (), +) -> PatternExpr: + """ + Convert an FX graph into a PatternExpr. This is useful for simple + patterns that can only match single functions and fixed-length lists. + """ + # scalar_workaround is a hack to capture dropout_p + # see https://github.com/pytorch/pytorch/issues/97894 + scalar_workaround = scalar_workaround or {} + inv_scalar_workaround = {v: k for k, v in scalar_workaround.items()} + assert len(inv_scalar_workaround) == len(scalar_workaround) + + def process_arg( + x: T, ignore_types_override: Optional[Sequence[type[Any]]] = None + ) -> Union[T, KeywordArg, Ignored]: + current_ignore_types = ( + ignore_types_override if ignore_types_override is not None else ignore_types + ) + if isinstance(x, (float, int)) and x in inv_scalar_workaround: + return KeywordArg(inv_scalar_workaround[x]) + if type(x) in current_ignore_types: + return Ignored() + if isinstance(x, list) and all(isinstance(y, Ignored) for y in x) and x: + return Ignored() + return x + + argnum = itertools.count() + + class Converter(torch.fx.Interpreter): + # pyrefly: ignore [bad-override] + call_method = _not_implemented + # pyrefly: ignore [bad-override] + call_module = _not_implemented + # pyrefly: ignore [bad-override] + get_attr = _not_implemented + + # pyrefly: ignore [bad-override] + def placeholder( + self, + target: str, # type: ignore[override] + args: Sequence[Any], + kwargs: Mapping[str, Any], + ) -> Union[ExclusiveKeywordArg, KeywordArg]: + n = next(argnum) + if n < len(argnames): + name = argnames[n] + elif argnames: + assert target.startswith("tangent") + name = target + else: + target = re.sub(r"_\d+$", "", target) # de-mangle arg name + name = target + if name in exclusive_arg_names: + return ExclusiveKeywordArg(name) + else: + return KeywordArg(name) + + # pyrefly: ignore [bad-override] + def call_function( + self, + target: str, # type: ignore[override] + args: Sequence[Any], + kwargs: Mapping[str, Any], + ) -> PatternExpr: + process_arg_fn = process_arg + # Indexing is critical for matching getitem nodes, so we can't ignore int args here + if target is operator.getitem: + + def process_arg_fn_impl( + x: T, + ignore_types_override: Optional[Sequence[type[Any]]] = tuple( + t for t in ignore_types if t is not int + ), + ) -> Union[T, KeywordArg, Ignored]: + return process_arg(x, ignore_types_override) + + process_arg_fn = process_arg_fn_impl + + args, kwargs = pytree.tree_map(process_arg_fn, (args, kwargs)) + if list in ignore_types: + # Handle a burned in tensor size which are now [Ignored(), Ignored(), ...] + args = [process_arg_fn(a) for a in args] + kwargs = {k: process_arg_fn(a) for k, a in kwargs.items()} + return CallFunction(target, *args, **kwargs) + + def run_node(self, n: torch.fx.Node) -> Any: + rv = super().run_node(n) + if n.op == "output" and isinstance(rv, tuple): + args = n.args[0] + assert isinstance(args, Collection) + assert len(rv) == len(args) + for r, arg in zip(rv, args): + # pyrefly: ignore [missing-attribute] + r.users = len(arg.users) + else: + rv.users = len(n.users) + return rv + + assert isinstance(gm, torch.fx.GraphModule) + pattern = Converter(gm).run() + if not isinstance(pattern, PatternExpr): + return MultiOutputPattern(pytree.tree_leaves(pattern)) + return pattern + + +@torch.no_grad() +def fwd_only( + fn: Callable[..., Any], + args: Sequence[Any], + *, + run_functional_passes: bool = True, + get_decomp_fn: Optional[Callable[..., Any]] = None, +) -> torch.fx.GraphModule: + """Build a normalized inference graph, for use with fx_to_pattern""" + # TODO - look into using aot autograd, asserting no mutating ops here + with enable_python_dispatcher(), preserve_node_meta(): + decompositions = ( + get_decomp_fn() if get_decomp_fn is not None else select_decomp_table() + ) + gm = make_fx(fn, decompositions, tracing_mode="real")(*args) + + from .fx_passes.post_grad import remove_noop_ops + + if run_functional_passes: + remove_noop_ops(gm.graph) + gm.graph.eliminate_dead_code() + + gm.recompile() + return gm + + +@torch.enable_grad() +def joint_fwd_bwd(fn: Callable[..., Any], args: Sequence[Any]) -> torch.fx.GraphModule: + """Build a normalized training graph, for use with fx_to_pattern""" + gm: Optional[torch.fx.GraphModule] = None + + def record_joint_graph( + joint_graph: torch.fx.GraphModule, inputs: Sequence[Any], **kwargs: Any + ) -> tuple[torch.fx.GraphModule, torch.fx.GraphModule]: + nonlocal gm + assert not gm + gm = clone_graph(joint_graph) + return default_partition(joint_graph, inputs, **kwargs) + + with torch._guards.tracing(None): + aot_function( + fn, + lambda g, i: make_boxed_func(g), + partition_fn=record_joint_graph, + decompositions=select_decomp_table(), + keep_inference_input_mutations=True, + enable_log=False, + )(*args) + assert gm + + from .fx_passes.post_grad import remove_noop_ops + + remove_noop_ops(gm.graph) + + from .fx_passes.joint_graph import pointless_view + + matcher_pass = PatternMatcherPass() + + pattern = CallFunction( + torch.ops.aten.view.default, KeywordArg("arg"), KeywordArg("size") + ) + GraphPatternEntry( + pattern=pattern, + handler=pointless_view, + extra_check=_return_true, + # pyrefly: ignore [bad-argument-type] + ).register(matcher_pass.patterns) + matcher_pass.apply(gm.graph) + + # remove in/out specs + gm.graph._codegen = torch.fx.graph.CodeGen() + gm.graph.eliminate_dead_code() + gm.recompile() + return gm + + +def _args(n: torch.fx.Node) -> list[torch.fx.node.Argument]: + args: list[torch.fx.node.Argument] = [] + torch.fx.map_arg((n.args, n.kwargs), args.append) + return args + + +def stable_topological_sort(graph: torch.fx.Graph) -> None: + # Nodes are in exactly one of these three collections: + + # - Nodes in `pending` are waiting to be processed (in reverse order): + pending = list(reversed(graph.nodes)) + + # - Nodes in `ready` have been processed and are already in the correct + # order. + ready = OrderedSet[torch.fx.Node]() + + # - `waiting` is a mapping from a dependency to nodes which depend on that + # dependency. + waiting = defaultdict(list) + + # The cursor indicates the last processed node so we can add new nodes + # after it. + cursor = None + while pending: + node = pending.pop() + waiting_for = [x for x in _args(node) if x not in ready] + if waiting_for: + # We have unprocessed input nodes. Might as well wait for the last + # arg so an already sorted list will only recheck this node once. + waiting[waiting_for[-1]].append(node) + else: + ready.add(node) + if cursor and cursor.next is not node: + cursor.append(node) + cursor = node + # Mark the nodes that have been waiting for this node to finish as + # ready to check again. + pending.extend(reversed(waiting.pop(node, ()))) + + assert not waiting and len(ready) == len(graph.nodes) + + +def init_once_fakemode(fn: Callable[..., Any]) -> Callable[[], Any]: + """Wrapper around lazy init functions in fx_passes/""" + + @functools.cache + @functools.wraps(fn) + def lazy_init() -> Any: + counters_ref = counters[backend].copy() + + with torch._guards.tracing(None), unset_fake_temporarily(), FakeTensorMode(): + result = fn() + + # clear view matches encountered during tracing + counters[backend] = counters_ref + + return result + + return lazy_init + + +def config_flag(name: str) -> Callable[[Match], Any]: + """Function for extra_check to put pass behind a flag""" + + def flag_check(match: Match) -> Any: + return getattr(config, name) + + return flag_check + + +def clone_graph(input_graph: torch.fx.GraphModule) -> torch.fx.GraphModule: + class CopyGraph(Transformer): + def run_node(self, old_node: torch.fx.Node) -> torch.fx.Node: + new_node = super().run_node(old_node) + if isinstance(new_node, torch.fx.Proxy): + new_node.node.meta.update(old_node.meta) + new_node.node.name = self.new_graph._graph_namespace.create_name( + old_node.name, None + ) + # pyrefly: ignore [bad-return] + return new_node + + return CopyGraph(input_graph).transform() + + +# TODO: remove in follow up diff, used internally +_seen_patterns: OrderedSet[str] = OrderedSet() + + +def get_arg_value( + node: torch.fx.Node, arg_number: int, kwarg_name: Optional[str] = None +) -> Any: + if len(node.args) > arg_number: + return node.args[arg_number] + elif kwarg_name is None: + return None + else: + return node.kwargs.get(kwarg_name) + + +def filter_nodes(nodes: Iterable[torch.fx.Node], fn: Any) -> list[torch.fx.Node]: + fns = [fn] + if isinstance(fn, torch._ops.OpOverloadPacket): + fns.extend([getattr(fn, overload) for overload in fn.overloads()]) + + return [node for node in nodes if node.target in fns] + + +def extract_target(node: torch.fx.Node) -> torch.fx.node.Target: + """For call_function and call_method, we directly use the target function; + For call_module, the target is string, and we treat the module class + as a function. + """ + if node.op == "call_module": + assert isinstance(node.target, str) + return _get_attr(node.graph.owning_module, node.target).__class__ + return node.target diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/quantized_lowerings.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/quantized_lowerings.py new file mode 100644 index 0000000000000000000000000000000000000000..5b6f8c12309b81202fc92a5def2d7f191f6641f8 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/quantized_lowerings.py @@ -0,0 +1,169 @@ +import logging +from typing import Any + +import torch +from torch._inductor.kernel.mm_common import mm_args + +from . import config, lowering +from .codegen.cpp_gemm_template import CppGemmTemplate, CppWoqInt4GemmTemplate +from .codegen.cpp_utils import create_epilogue_with_attr +from .lowering import expand, register_lowering +from .mkldnn_ir import WeightInt4PackMatmul +from .select_algorithm import ( + autotune_select_algorithm, + ExternKernelChoice, + realize_inputs, +) +from .utils import use_aten_gemm_kernels, use_cpp_gemm_template +from .virtualized import V + + +log = logging.getLogger(__name__) + +aten__weight_int8pack_mm = ExternKernelChoice( + torch._weight_int8pack_mm, "at::_weight_int8pack_mm", has_out_variant=False +) + +aten__weight_int4pack_mm_cpu = ExternKernelChoice( + torch.ops.quantized.int4mm_packed_weight_cpu, + "at::native::_weight_int4pack_mm_cpu_tensor", + has_out_variant=False, + kernel_creator=WeightInt4PackMatmul.create, +) + +quantized = torch.ops.quantized +_quantized = torch.ops._quantized +aten = torch.ops.aten + + +def register_quantized_ops() -> None: + lowering.add_needs_realized_inputs( + [ + quantized.max_pool2d, + _quantized.wrapped_fbgemm_pack_gemm_matrix_fp16, + _quantized.wrapped_fbgemm_linear_fp16_weight, + ] + ) + lowering.make_fallback(quantized.max_pool2d) + lowering.make_fallback(_quantized.wrapped_fbgemm_pack_gemm_matrix_fp16) + lowering.make_fallback(_quantized.wrapped_fbgemm_linear_fp16_weight) + + +def register_woq_mm_ops() -> None: + @register_lowering(aten._weight_int8pack_mm, type_promotion_kind=None) # type: ignore[misc] + def int8pack_mm( + input: torch.Tensor, + weight: torch.Tensor, + scale: torch.Tensor, + *, + layout: Any = None, + ) -> Any: + _, _, _, layout, mat1, mat2 = mm_args( + input, weight, layout=layout, mat2_transposed=True + ) + assert ( + mat1.get_dtype() in [torch.bfloat16, torch.float16, torch.float] + and mat2.get_dtype() == torch.int8 + ) + aten_layout = layout + + # options to tune from + choices = ( + [aten__weight_int8pack_mm.bind((mat1, mat2, scale), aten_layout)] + if use_aten_gemm_kernels() + else [] + ) + + # scale is applied as an epilogue, and the scale tensor is expanded (with a view op) + # for broadcasting, as it's 1D. + def _mul_epilogue(buf: torch.Tensor) -> Any: + return create_epilogue_with_attr( + buf, "mul", other=realize_inputs(expand(scale, layout.size)) + ) + + if use_cpp_gemm_template(aten_layout, mat1, mat2, mat2_transposed=True): + CppGemmTemplate.add_choices( + choices, + aten_layout, + [mat1, mat2, scale], + trans_w=True, + epilogue_creator=_mul_epilogue, # type: ignore[arg-type] + ) + + return autotune_select_algorithm( + "_weight_int8pack_mm", choices, [mat1, mat2, scale], aten_layout + ) + + @register_lowering(aten._weight_int4pack_mm_for_cpu, type_promotion_kind=None) # type: ignore[misc] + def int4pack_mm_cpu( + input: torch.Tensor, + weight: torch.Tensor, + qGroupSize: int, + qScaleAndZeros: torch.Tensor, + *, + layout: Any = None, + ) -> Any: + _, _, _, layout, mat1, mat2 = mm_args( + input, weight, layout=layout, use_4x2_dim=True, mat2_transposed=True + ) + assert ( + mat1.get_dtype() in [torch.bfloat16, torch.float16, torch.float] + and mat2.get_dtype() == torch.uint8 + ) + group_size = V.graph.add_tensor_constant( + torch.tensor(qGroupSize, dtype=torch.int64), name=None + ) + aten_layout = layout + + # options to tune from + choices = ( + [ + aten__weight_int4pack_mm_cpu.bind( + (mat1, mat2, group_size, qScaleAndZeros), aten_layout + ) + ] + if use_aten_gemm_kernels() + else [] + ) + if ( + (config.max_autotune or config.max_autotune_gemm) + and use_cpp_gemm_template( + aten_layout, + mat1, + mat2, + mat2_transposed=True, + is_woq_int4=True, + q_group_size=qGroupSize, + ) + and mat2.get_layout().is_contiguous() + ): + # pyrefly: ignore [bad-specialization, missing-attribute, not-a-type] + CppWoqInt4GemmTemplate[qGroupSize].add_choices( + choices, + aten_layout, + [mat1, mat2, group_size, qScaleAndZeros], + ) + + # define functions to generate example inputs for weight and group size + # otherwise, autotuner generates example inputs of all zeros for them + def get_example_weight(x: torch._inductor.ir.IRNode) -> torch.Tensor: + assert x.get_layout().is_contiguous() + shape = x.get_size() + device = x.get_device() + return torch.randint(0, 255, shape, dtype=torch.uint8, device=device) + + input_gen_fns = { + 1: get_example_weight, # packed weight + 2: lambda x: V.graph.constants[x.get_name()], # group size + } + + return autotune_select_algorithm( + "_weight_int4pack_mm_for_cpu", + choices, + [mat1, mat2, group_size, qScaleAndZeros], + aten_layout, + input_gen_fns=input_gen_fns, + ) + + lowering.make_fallback(aten._dyn_quant_matmul_4bit) + lowering.make_fallback(aten._dyn_quant_pack_4bit_weight) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/remote_cache.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/remote_cache.py new file mode 100644 index 0000000000000000000000000000000000000000..d9a2d4af9d1be060d7dd7ab3654aa06be709c40f --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/remote_cache.py @@ -0,0 +1,432 @@ +from __future__ import annotations + +import atexit +import collections +import dataclasses +import functools +import json +import logging +import os +import sys +import typing +from abc import abstractmethod +from typing import Any, Generic, Optional, TypeAlias, TypeVar, Union +from typing_extensions import override + +from torch._dynamo.utils import dynamo_timed +from torch._inductor import config +from torch.monitor import _WaitCounter + + +if typing.TYPE_CHECKING: + from collections.abc import Callable + + +try: + import redis +except ImportError: + redis = None # type: ignore[assignment] + + +log = logging.getLogger(__name__) + + +if config.is_fbcode(): + from rfe.scubadata.scubadata_py3 import ( # type: ignore[import-not-found] + Sample as Sample_, + ) + + Sample: TypeAlias = Sample_ +else: + Sample: TypeAlias = type[object] # type: ignore[misc,no-redef] + + +_T = TypeVar("_T") +_U = TypeVar("_U") + + +remote_fx_cache_get_timed = functools.partial( + dynamo_timed, + "FbRemoteFxGraphCache.get", + phase_name="remote_fx_graph_cache_get", + log_pt2_compile_event=False, + dynamo_compile_column_us="remote_fx_graph_cache_get_time_us", + log_waitcounter=True, +) +remote_fx_cache_put_timed = functools.partial( + dynamo_timed, + "FbRemoteFxGraphCache.put", + phase_name="remote_fx_graph_cache_put", + log_pt2_compile_event=False, + dynamo_compile_column_us="remote_fx_graph_cache_put_time_us", + log_waitcounter=True, +) + + +class RemoteCacheBackend(Generic[_T]): + """ + A backend implementation for accessing a remote/distributed cache. Only + works with bytes in/out. For structured data use a RemoteCache. + """ + + def __init__(self) -> None: + self._name = f"backend:{type(self).__name__}" + + @abstractmethod + def _get(self, key: str) -> Optional[_T]: + pass + + @abstractmethod + def _put(self, key: str, data: _T) -> None: + pass + + def get(self, key: str) -> Optional[_T]: + try: + value = self._get(key) + cache_stats.get(self._name, value) + except Exception: + cache_stats.exception(self._name) + raise + return value + + def put(self, key: str, data: _T) -> None: + try: + self._put(key, data) + cache_stats.put(self._name) + except Exception: + cache_stats.exception(self._name) + raise + + +# Serde that encodes from _T to _U and decodes from _U to _T. +class RemoteCacheSerde(Generic[_T, _U]): + @abstractmethod + def encode(self, data: _T) -> _U: + pass + + @abstractmethod + def decode(self, data: _U) -> _T: + pass + + +JsonDataTy = Optional[ + Union[int, float, str, bool, dict[str, "JsonDataTy"], list["JsonDataTy"]] +] + + +class RemoteCacheJsonSerde(RemoteCacheSerde[JsonDataTy, bytes]): + def encode(self, data: JsonDataTy) -> bytes: + return bytes(json.dumps(data), "ascii") + + def decode(self, data: bytes) -> JsonDataTy: + return json.loads(data) + + +class RemoteCachePassthroughSerde(RemoteCacheSerde[_T, _T]): + def encode(self, data: _T) -> _T: + return data + + def decode(self, data: _T) -> _T: + return data + + +# This class is the top of a RemoteCache. A RemoteCache is fundamentally made of +# three parts: +# +# 1. The controller (this class). +# 2. A serializer/deserializer (instance of RemoteCacheSerde). +# 3. A backend (instance of RemoteCacheBackend). +# +# To write (`put`), the RemoteCache takes data, uses the RemoteCacheSerde to +# convert it for the backend and passes it to the backend. +# +# Conversely when reading (`get`), the RemoteCache takes data from the backend, +# uses the RemoteCacheSerde to convert it and returns it. +# +# The RemoteCacheBackend is generic on _U - which is the type of data the +# backend can directly cache (usually `bytes`). +# +# The RemoteCacheSerde is responsible for converting between _T (the type of +# data the RemoteCache accepts in `put` and returns in `get`) and _U. +# +# When instantiating a RemoteCache you should override, not directly create a +# RemoteCache. The reason is that when logging cache use (`TORCH_LOGS=cache`) we +# use the concrete type of the RemoteCache as the reported cache. See +# RemoteFxGraphCache below as an example. +class RemoteCache(Generic[_T]): + backend_override_cls: Optional[Callable[[], RemoteCacheBackend[Any]]] = None + + def __init__( + self, backend: RemoteCacheBackend[_U], serde: RemoteCacheSerde[_T, _U] + ) -> None: + # Support for testing to mock out the backend on a class-by-class basis. + if (override_cls := self.__class__.backend_override_cls) is not None: + self.backend = override_cls() + else: + self.backend = backend + # pyrefly: ignore [invalid-type-var] + self.serde = serde + + # See if the cache contains `key`. Returns `None` if the value is not + # present in the cache. + def get(self, key: str) -> Optional[_T]: + with _WaitCounter("pytorch.remote_cache.get").guard(): + sample = self._create_sample() + try: + result = self._get(key, sample) + cache_stats.get(type(self).__name__, result) + except Exception as e: + cache_stats.exception(type(self).__name__) + if sample: + sample.fail_reason = str(e) + raise + finally: + self._log_sample(sample) + return result + + # Add `value` to the cache with the key `key`. Note that `None` is not a + # valid value even if _T supports it (because you can't tell the difference + # between `None` and a missing cache entry). + def put(self, key: str, value: _T) -> None: + with _WaitCounter("pytorch.remote_cache.put").guard(): + assert value is not None + sample = self._create_sample() + try: + self._put(key, value, sample) + cache_stats.put(type(self).__name__) + except Exception as e: + cache_stats.exception(type(self).__name__) + if sample: + sample.fail_reason = str(e) + raise + finally: + self._log_sample(sample) + + # Used to convert data from the cache into structured data. + def _decode(self, data: _U, sample: Optional[Sample]) -> _T: # type: ignore[override] + return self.serde.decode(data) # type: ignore[arg-type] + + # Used to convert structured data into data for the cache. + def _encode(self, value: _T, sample: Optional[Sample]) -> object: # returns _U + return self.serde.encode(value) + + # Get structured data from the cache. + # Separate from `get` so that it can be overridden. + def _get(self, key: str, sample: Optional[Sample]) -> Optional[_T]: + if data := self._backend_get(key): + return self._decode(data, sample) + return None + + # Get unstructured data from the cache. + # Separate from `get` so that it can be overridden. + # Returns _U - but we aren't actually generic on _U + def _backend_get(self, key: str) -> object: + return self.backend.get(key) + + # Put structured data into the cache. + # Separate from `put` so that it can be overridden. + def _put(self, key: str, value: _T, sample: Optional[Sample]) -> None: + data = self._encode(value, sample) + self._backend_put(key, data) + + # Put unstructured data into the cache. + # Separate from `put` so that it can be overridden. + # Takes data: _U - but we aren't actually generic on _U + def _backend_put(self, key: str, data: object) -> None: + self.backend.put(key, data) + + # Create a logging Sample - used with internal loggers to monitor cache + # effectiveness. + def _create_sample(self) -> Optional[Sample]: + return None + + # Write the logging Sample to the logger. + def _log_sample(self, sample: Optional[Sample]) -> None: + pass + + +class RedisRemoteCacheBackend(RemoteCacheBackend[bytes]): + """ + A Redis implementation of a remote/distributed cache. + """ + + # pyrefly: ignore [missing-attribute] + _redis: Optional[redis.Redis] = None + + def __init__(self, cache_id: str) -> None: + super().__init__() + if not redis: + raise RuntimeError("redis not available but required for remote cache") + + if "TORCHINDUCTOR_REDIS_URL" in os.environ: + self._redis = redis.Redis.from_url(os.environ["TORCHINDUCTOR_REDIS_URL"]) + else: + self._redis = redis.Redis( + host=os.environ.get("TORCHINDUCTOR_REDIS_HOST", "localhost"), + port=int(os.environ.get("TORCHINDUCTOR_REDIS_PORT", 6379)), + ) + + @override + def _get(self, key: str) -> Optional[bytes]: + if not self._redis: + # Either redis wasn't found or we already had some trouble... + return None + + try: + # pyrefly: ignore [missing-attribute] + value = self._redis.get(key) + # pyrefly: ignore [missing-attribute] + except redis.exceptions.ConnectionError: + # Redis is lazy and doesn't actually attempt to connect until the + # first use. Mark is as unavailable now. + self._redis = None + return None + + # In theory redis.get() can return an Awaitable as well... + assert value is None or isinstance(value, bytes) + return value + + @override + def _put(self, key: str, data: bytes) -> None: + if not self._redis: + # Either redis wasn't found or we already had some trouble... + return + + try: + # pyrefly: ignore [missing-attribute] + self._redis.set(key, data) + # pyrefly: ignore [missing-attribute] + except redis.exceptions.ConnectionError: + # Redis is lazy and doesn't actually attempt to connect until the + # first use. Mark is as unavailable now. + self._redis = None + + +class RedisRemoteCache(RemoteCache[JsonDataTy]): + def __init__(self, cache_id: str) -> None: + # Special test handling: If we're just going to override the backend + # anyway don't require redis + if self.__class__.backend_override_cls: + # This is totally bogus but it works for now... + backend = typing.cast(RemoteCacheBackend[bytes], None) + else: + backend = RedisRemoteCacheBackend(cache_id) + serde = RemoteCacheJsonSerde() + super().__init__(backend, serde) + version = 1 # consistency between various types of keys + self._key_fmt = f"pt2:{cache_id}::{{key}}:c{version}" + + def _get_key(self, key: str) -> str: + return self._key_fmt.format(key=key) + + @override + def _get(self, key: str, sample: Optional[Sample]) -> Optional[JsonDataTy]: + key = self._get_key(key) + return super()._get(key, sample) + + @override + def _put(self, key: str, value: JsonDataTy, sample: Optional[Sample]) -> None: + key = self._get_key(key) + super()._put(key, value, sample) + + +class RemoteAutotuneCache(RedisRemoteCache): + pass + + +class RemoteBundledAutotuneCache(RedisRemoteCache): + pass + + +class RemoteFxGraphCache(RedisRemoteCache): + pass + + +class RemoteAOTAutogradCache(RedisRemoteCache): + pass + + +class RemoteDynamoPGOCache(RedisRemoteCache): + pass + + +def create_cache( + key: str, + is_fbcode: bool, + fb_cache_cls: str, + oss_cache_cls: str, +) -> Optional[RemoteCache[JsonDataTy]]: + try: + if is_fbcode: + import torch._inductor.fb.remote_cache + + cache_cls = getattr(torch._inductor.fb.remote_cache, fb_cache_cls) + return cache_cls(key) + else: + this_module = sys.modules[__name__] + + cache_cls = getattr(this_module, oss_cache_cls) + return cache_cls(key) + + except Exception: + log.warning("Unable to create a remote cache", exc_info=True) + return None + + +# Some simple stat capture +@dataclasses.dataclass +class _CacheStat: + miss: int = 0 + hit: int = 0 + put: int = 0 + exception: int = 0 + + def __str__(self) -> str: + return f"{{hit: {self.hit}, miss: {self.miss}, put: {self.put}, exception: {self.exception}}}" + + +class _CacheStats: + _stats: dict[str, _CacheStat] + + def __init__(self) -> None: + self._stats = collections.defaultdict(_CacheStat) + + def miss(self, name: str, count: int = 1) -> None: + self._stats[name].miss += count + + def hit(self, name: str, count: int = 1) -> None: + self._stats[name].hit += count + + def get(self, name: str, value: Optional[object]) -> None: + if value is None: + self.miss(name) + else: + self.hit(name) + + def put(self, name: str, count: int = 1) -> None: + self._stats[name].put += count + + def exception(self, name: str, count: int = 1) -> None: + self._stats[name].exception += count + + +cache_stats = _CacheStats() + + +@atexit.register +def dump_cache_stats() -> None: + if not log.isEnabledFor(logging.INFO): + return + + import io + + out = io.StringIO() + + if not cache_stats._stats: + print(" None", file=out) + else: + print(file=out) + for k, v in sorted(cache_stats._stats.items()): + print(f" {k}: {v}", file=out) + + log.info("Cache Metrics:%s", out.getvalue()) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/remote_gemm_autotune_cache.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/remote_gemm_autotune_cache.py new file mode 100644 index 0000000000000000000000000000000000000000..0ef026269b10c86d58f72e53e998af4ba59b13bf --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/remote_gemm_autotune_cache.py @@ -0,0 +1,20 @@ +import asyncio +from typing import TypeVar + +import torch._inductor.config as config +from torch._inductor import ir + + +_T = TypeVar("_T") + + +def gen_best_config(mat1: ir.StorageBox, mat2: ir.StorageBox) -> asyncio.Task[_T]: + """ + Generate the best GEMM autotune config for the given matrices. + """ + if config.is_fbcode(): + from torch._inductor.fb.remote_gemm_autotune_cache import gen_best_config + + return gen_best_config(mat1, mat2) + else: + raise NotImplementedError("Function gen_best_config is not yet implemented") diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/rocm_multiarch_utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/rocm_multiarch_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..a1a6103e1091511121cc7612d5fd5d0a99993056 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/rocm_multiarch_utils.py @@ -0,0 +1,264 @@ +""" +ROCm Multi-Architecture Support Utilities +Compile LLVM IR to multi-arch bundles that HIP can load automatically. +""" + +import os +import subprocess +from typing import Optional + +import torch +from torch.utils.cpp_extension import _join_rocm_home, ROCM_HOME + + +def get_rocm_compiler() -> str: + """ + Get path to ROCm's clang compiler. + Uses PyTorch's ROCM_HOME detection. + + Returns: + Path to clang compiler + + Raises: + RuntimeError: If ROCm is not found + """ + if ROCM_HOME is None: + raise RuntimeError( + "ROCm installation not found. " + "PyTorch was not built with ROCm support or ROCM_HOME is not set." + ) + + # ROCm's clang is at /llvm/bin/clang + clang_path = _join_rocm_home("llvm", "bin", "clang") + + if not os.path.exists(clang_path): + raise RuntimeError( + f"ROCm clang not found at {clang_path}. ROCM_HOME is set to {ROCM_HOME}" + ) + + return clang_path + + +def get_rocm_bundler() -> str: + """ + Get path to clang-offload-bundler. + Uses PyTorch's ROCM_HOME detection. + + Returns: + Path to bundler + + Raises: + RuntimeError: If bundler is not found + """ + if ROCM_HOME is None: + raise RuntimeError( + "ROCm installation not found. " + "PyTorch was not built with ROCm support or ROCM_HOME is not set." + ) + + # Bundler is at /llvm/bin/clang-offload-bundler + bundler_path = _join_rocm_home("llvm", "bin", "clang-offload-bundler") + + if not os.path.exists(bundler_path): + raise RuntimeError( + f"clang-offload-bundler not found at {bundler_path}. " + f"ROCM_HOME is set to {ROCM_HOME}" + ) + + return bundler_path + + +def get_rocm_target_archs() -> list[str]: + """ + Get target architectures from environment or config. + Returns: List of architecture strings (e.g., ['gfx90a', 'gfx942']) + """ + # Check PYTORCH_ROCM_ARCH environment variable + env_archs = os.environ.get("PYTORCH_ROCM_ARCH", "").strip() + if env_archs: + archs = [arch.strip() for arch in env_archs.replace(";", ",").split(",")] + archs = [arch for arch in archs if arch] + if archs: + return archs + + # Try to get from inductor config + try: + from torch._inductor import config + + if hasattr(config, "rocm") and hasattr(config.rocm, "target_archs"): + archs = config.rocm.target_archs + if archs: + return archs + + except Exception: + pass + + return torch.cuda.get_arch_list() + + +def compile_llvm_ir_to_code_object( + llvm_ir_path: str, output_path: str, target_arch: str +) -> bool: + """ + Compile unbundled LLVM IR to a single-arch code object. + + Args: + llvm_ir_path: Path to .ll file + output_path: Where to write .hsaco file + target_arch: Target architecture (e.g., 'gfx90a') + + Returns: + True if successful + """ + if not os.path.exists(llvm_ir_path): + return False + + os.makedirs(os.path.dirname(output_path), exist_ok=True) + + try: + clang = get_rocm_compiler() + except RuntimeError: + return False + + # Using clang and not hipcc since we are not compiling source code + # Instead we use the LLVM IR (.ll) provided by triton + cmd = [ + clang, + "-target", + "amdgcn-amd-amdhsa", + f"-mcpu={target_arch}", + llvm_ir_path, + "-o", + output_path, + ] + + try: + subprocess.run(cmd, capture_output=True, text=True, check=True) + + if not os.path.exists(output_path): + return False + + return True + + except subprocess.CalledProcessError: + return False + + +def create_multiarch_bundle(code_objects: dict, output_bundle_path: str) -> bool: + """ + Bundle multiple architecture code objects into a single multi-arch bundle. + + Uses clang-offload-bundler to create a fat binary that HIP runtime can load. + The runtime automatically selects the correct architecture at load time. + + Args: + code_objects: Dict mapping architecture to code object path + output_bundle_path: Path for output bundle + + Returns: + True if successful + """ + if not code_objects: + return False + + os.makedirs(os.path.dirname(output_bundle_path), exist_ok=True) + + try: + bundler = get_rocm_bundler() + except RuntimeError: + return False + + # Build targets and inputs lists for clang-offload-bundler + targets = ["host-x86_64-unknown-linux-gnu"] + + # We include a dummy host entry to satisfy the bundler format + inputs = ["/dev/null"] + + for arch, path in sorted(code_objects.items()): + if not os.path.exists(path): + continue + # hipv4 = HIP version 4 code object format + # amdgcn-amd-amdhsa = target triple for ROCm/HSA runtime + # arch = specific GPU (gfx90a, gfx942, etc.) + targets.append(f"hipv4-amdgcn-amd-amdhsa--{arch}") + inputs.append(path) + + if len(inputs) == 1: # Only host, no device code + return False + + cmd = [ + bundler, + "--type=o", + # CRITICAL: HIP runtime expects 4096-byte alignment for loading bundles + # Without this, hipModuleLoadData gives segmentation fault + "-bundle-align=4096", # CRITICAL: Required by HIP runtime! + f"--targets={','.join(targets)}", + ] + + for input_file in inputs: + cmd.append(f"--input={input_file}") + + cmd.append(f"--output={output_bundle_path}") + + try: + subprocess.run(cmd, capture_output=True, text=True, check=True) + + if not os.path.exists(output_bundle_path): + return False + + return True + + except subprocess.CalledProcessError: + return False + + +def compile_multiarch_bundle_from_llvm_ir( + llvm_ir_path: str, output_bundle_path: str, target_archs: Optional[list[str]] = None +) -> bool: + """ + Complete workflow: LLVM IR → multiple code objects → bundle. + + This is the main entry point for multi-arch compilation. + + Args: + llvm_ir_path: Path to .ll file + output_bundle_path: Where to write bundle + target_archs: Optional list of architectures + + Returns: + True if successful + """ + if target_archs is None: + # Get architectures from environment variable or config + target_archs = get_rocm_target_archs() + + # Step 1: Compile LLVM IR to code object for each architecture + code_objects = {} + temp_dir = os.path.dirname(output_bundle_path) + kernel_name = os.path.splitext(os.path.basename(llvm_ir_path))[0] + + for arch in target_archs: + # Create temporary single-architecture code object + # Format: kernel_name_gfx90a.co, kernel_name_gfx942.co, etc. + co_path = os.path.join(temp_dir, f"{kernel_name}_{arch}.co") + + # Compile with clang backend: LLVM IR → GPU machine code + if compile_llvm_ir_to_code_object(llvm_ir_path, co_path, arch): + code_objects[arch] = co_path + + if not code_objects: + return False + + # Step 2: Bundle all code objects together + # Uses clang-offload-bundler to create fat binary + success = create_multiarch_bundle(code_objects, output_bundle_path) + + # Step 3: Clean up temporary single-arch code objects + # The bundle contains all the code, so intermediates are no longer needed + for co_path in code_objects.values(): + try: + os.remove(co_path) + except Exception: + pass + + return success diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/scheduler.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/scheduler.py new file mode 100644 index 0000000000000000000000000000000000000000..47323242901e9f681dade60625700f35ddf86953 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/scheduler.py @@ -0,0 +1,6576 @@ +from __future__ import annotations + +import collections +import contextlib +import dataclasses +import functools +import inspect +import itertools +import logging +import math +import operator +import os +import pprint +import textwrap +import traceback +import typing +from collections import Counter, defaultdict +from typing import Any, Generic, Optional, TYPE_CHECKING, TypeAlias, TypeVar, Union +from typing_extensions import ParamSpec + +from torch.utils._ordered_set import OrderedSet + +from .ir import ComputedBuffer + + +if TYPE_CHECKING: + from collections.abc import Callable, Iterator, Sequence + from types import ModuleType + +import sympy + +import torch +import torch._inductor.async_compile # noqa: F401 required to warm up AsyncCompile pools +import torch.utils._pytree as pytree +from torch._dynamo.utils import counters, dynamo_timed +from torch._inductor.codecache import LambdaFuture, PyCodeCache +from torch._inductor.ir import TritonTemplateCallerBase +from torch._inductor.metrics import get_metric_table, is_metric_table_enabled +from torch.fx.experimental.symbolic_shapes import free_symbols +from torch.utils._sympy.symbol import free_symbol_is_type, symbol_is_type, SymT +from torch.utils._triton import has_triton + +from . import comms, config, config_comms, dependencies, ir, metrics +from .analyze_preserves_zero_mask import can_codegen_without_upcasts +from .codegen.common import BackendFeature, get_scheduling_for_device, Kernel +from .comm_analysis import ( + estimate_nccl_collective_runtime, + estimate_nccl_collective_runtime_nccl_estimator, +) +from .dependencies import Dep, MemoryDep, StarDep, WeakDep +from .exc import GPUTooOldForTriton, TritonMissing +from .fx_utils import count_flops_fx +from .ir import ( + assign_origin_node, + get_device_type, + GraphPartitionSignature, + MultiOutput, + MultiOutputLayout, + NoneLayout, +) +from .loop_body import LoopBody +from .memory import MemoryPlanningInfoForBuffer, MemoryPlanningInfoForNode +from .runtime.hints import ReductionHint +from .runtime.runtime_utils import green_text, red_text +from .sizevars import SimplifyIndexing +from .utils import ( + _unstable_customized_partition_wrapper, + cache_on_self, + cmp, + device_need_guard, + get_current_backend, + get_device_tflops, + get_dtype_size, + get_gpu_dram_gbps, + GraphPartitionMap, + IndentedBuffer, + is_collective, + is_cudagraph_unsafe_op, + is_gpu, + is_multi_outputs_template, + is_output_of_multi_outputs_template, + is_wait, + maybe_log_cudagraph_partition, + sympy_product, +) +from .virtualized import V + + +log = logging.getLogger(__name__) +fusion_log = torch._logging.getArtifactLogger(__name__, "fusion") +loop_ordering_log = torch._logging.getArtifactLogger(__name__, "loop_ordering") +compute_dependencies_log = torch._logging.getArtifactLogger( + __name__, "compute_dependencies" +) + +PartitionType: TypeAlias = list["BaseSchedulerNode"] +_T = TypeVar("_T") +_P = ParamSpec("_P") + + +class MixOrderReduction: + """ + This class contains utility functions to decide if we should fuse reductions + reducing across different dimensions of the same input tensor. + """ + + @staticmethod + def is_split_reduction(node: BaseSchedulerNode) -> bool: + return node.is_reduction() and all( + subnode.node._split_size is not None + for subnode in node.get_nodes() + if isinstance(subnode, SchedulerNode) + and subnode.is_reduction() + and isinstance(subnode.node, ComputedBuffer) + ) + + @classmethod + def get_numel_rnumel(cls, node: BaseSchedulerNode) -> tuple[sympy.Expr, sympy.Expr]: + if cls.is_split_reduction(node): + xnumel = None + rnumel = None + for subnode in node.get_nodes(): + if not ( + isinstance(subnode, SchedulerNode) + and subnode.is_reduction() + and isinstance(subnode.node, ComputedBuffer) + ): + continue + + assert subnode.node._original_ranges is not None + curxnumel = V.graph.sizevars.simplify( + sympy_product(subnode.node._original_ranges) + ) + assert subnode.node._original_reduction_ranges is not None + currnumel = V.graph.sizevars.simplify( + sympy_product(subnode.node._original_reduction_ranges) + ) + + if xnumel is None: + xnumel = curxnumel + rnumel = currnumel + else: + assert V.graph.sizevars.statically_known_equals( + xnumel, curxnumel + ), f"{xnumel} v.s. {curxnumel}" + assert V.graph.sizevars.statically_known_equals( + rnumel, currnumel + ), f"{rnumel} v.s. {currnumel}" + + assert xnumel is not None + return (xnumel, rnumel) + else: + return node.group[1] # type: ignore[return-value] + + @classmethod + def has_mix_reduction_orders( + cls, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + g1 = cls.get_numel_rnumel(node1) + g2 = cls.get_numel_rnumel(node2) + + if len(g1) != 2 or len(g2) != 2 or g1 == g2: + return False + + return tuple(g1) == tuple(reversed(g2)) + + @classmethod + def _is_full_access(cls, buf: str, node: BaseSchedulerNode) -> bool: + """ + The access to 'buf' is not a broadcast access. + """ + found_dep = None + for dep in node.read_writes.reads: + if isinstance(dep, MemoryDep) and dep.name == buf: + found_dep = dep + break + + if not found_dep: + return False + + index = found_dep.index + var_ranges = node.read_writes.var_ranges + + if not var_ranges: + assert isinstance(node, FusedSchedulerNode), f"{type(node)}" + var_ranges = node.snodes[0].read_writes.var_ranges + + assert var_ranges + if not (OrderedSet(var_ranges) - OrderedSet(index.free_symbols)): + return True + + # cases that happen after merging loops: + # MemoryDep('arg0_1', c0, {c0: 25165824})]) + # var_ranges={d0: 32768, d1: 768} + if V.graph.sizevars.statically_known_equals( + sympy_product(found_dep.size), sympy_product(var_ranges.values()) + ): + return True + return False + + @classmethod + def get_common_read( + cls, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> list[str]: + out = [] + common_reads = node1.used_buffer_names() & node2.used_buffer_names() + for buf in common_reads: + if cls._is_full_access(buf, node1) and cls._is_full_access(buf, node2): + out.append(buf) + + return out + + @classmethod + def has_common_read( + cls, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + return len(cls.get_common_read(node1, node2)) > 0 + + @classmethod + def get_numel(cls, node: BaseSchedulerNode) -> int: + g1 = cls.get_numel_rnumel(node) + return V.graph.sizevars.size_hint(g1[0] * g1[1], fallback=0) + + @classmethod + def get_fusion_score( + cls, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> int: + # node2 is ignored for now + return cls.get_numel(node1) + + # TODO add a cache + @classmethod + def can_fuse(cls, node1: BaseSchedulerNode, node2: BaseSchedulerNode) -> bool: + """ + Check whether we can fuse two reductions with mix loop orders. + """ + if not config.triton.mix_order_reduction: + return False + + # TODO: Mix order reduction is not supported with cpp_wrapper yet + if V.graph.cpp_wrapper: + return False + + if not node1.is_gpu() or not node2.is_gpu(): + return False + device_type = node1.get_device().type # type: ignore[union-attr] + if ( + device_type not in ("cuda", "xpu") + or get_current_backend(device_type) != "triton" + ): + return False + if not node1.is_reduction() or not node2.is_reduction(): + return False + + if (node1.ancestors & node2.get_operation_names()) or ( + node2.ancestors & node1.get_operation_names() + ): + # the two reductions have no producer/consumer relationship + return False + + # check for mix reduction orders + if not cls.has_mix_reduction_orders(node1, node2): + return False + + # check common buffer accesses + common_reads = MixOrderReduction.get_common_read(node1, node2) + if len(common_reads) == 0: + return False + + g1 = cls.get_numel_rnumel(node1) + nrow = sympy.Max(g1[0], g1[1]) + ncol = sympy.Min(g1[0], g1[1]) + + # the fused version has worse perf than non-fused version for + # small workload. When a workload is small enough, data can be + # fully cached by L2 + size_thres = 5 * 2**20 + + # Call evaluate_expr rather than statically_known_geq since nrow can + # have dynamic shape in real models. + # Don't use hint directly since hint can be non-representative. + if not V.graph.sizevars.evaluate_expr(sympy.Ge(nrow * ncol, size_thres)): + return False + + # We require more more row than columns since + # 1, we prefer doing persistent reduction for each row + # 2, we will split the reduction across the rows + if not V.graph.sizevars.evaluate_expr(sympy.Ge(nrow, ncol * 2)): + return False + + # When nrow is small, ncol should also be small (due to the check + # above). Thus the entire tensor should be well cached in L2. + # Mix order reduction is less beneficial. + if not V.graph.sizevars.evaluate_expr(sympy.Ge(nrow, 4096)): + return False + + contiguous_node, other_node = ( + (node1, node2) + if V.graph.sizevars.evaluate_expr(sympy.Eq(g1[1], ncol)) + else (node2, node1) + ) + + # We previously only check the contiguous_node has contiguous + # access to common_reads. But that turns out to be not enough. + # The contiguous node may access a buffer that's node use by + # other_ndoe. If that ascess is non-contiugous, generating + # mix-order reduction can be inefficient especially when we + # force XBLOCK to be 1 + # if not all( + # cls.is_contiguous_load(buf, contiguous_node) for buf in common_reads + # ): + # return False + if not all( + cls.is_contiguous_load(dep.name, contiguous_node) + for dep in contiguous_node.read_writes.reads + ): + return False + + # Make sure a persistent reduction will be generated + if any( + subnode.node.data.reduction_hint # type: ignore[union-attr] + not in ( + ReductionHint.INNER, + ReductionHint.DEFAULT, + ) + for subnode in contiguous_node.get_nodes() + if subnode.is_reduction() + ): + return False + + # rnumel so large that we will not generated persistent reduction + # We don't see real use cases with dynamic ncol. But if we do, + # we should call evaluete_expr here which adds guards. + if not V.graph.sizevars.statically_known_leq(ncol, 1024 * 16): + return False + + # Other reduction types like max/min is not supported yet. + # There are no real use case as well. + out = all( + subnode.node.get_reduction_type() # type: ignore[union-attr] + in { + "sum", + "prod", + } + for subnode in other_node.get_nodes() + if subnode.is_reduction() + ) + return out + + @classmethod + def are_mix_order_reductions( + cls, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + return cls.can_fuse(node1, node2) + + @classmethod + def is_contiguous_load(cls, buf: str, parent_node: BaseSchedulerNode) -> bool: + from torch._inductor.loop_body import MemoryUsageType + + for node in parent_node.get_nodes(): + assert isinstance(node, SchedulerNode) + loop_body = node._body + entries = loop_body.memory_usage[MemoryUsageType.LOAD] + index_names = [e.index_name for e in entries if e.buffer_name == buf] + + if len(index_names) == 0: + continue + + # there can be multiple index_names some times + for index_name in index_names: + index_expr = loop_body.indexing_exprs[index_name] + var_ranges = loop_body.var_ranges + + # assumes the final symbol is for reduction + var_symbols = list(var_ranges.keys()) + stride_vars = V.graph.sizevars.stride_vars( + index_expr, + var_symbols, + var_symbols, + ) + + # stride==0 means a broadcast + if not (stride_vars[-1] == 0 or stride_vars[-1] == 1): + return False + return True + + +@dataclasses.dataclass +class SchedulerBuffer: + scheduler: Scheduler + node: ir.Buffer + defining_op: Optional[BaseSchedulerNode] + users: list[NodeUser] = dataclasses.field(default_factory=list) + mpi_buffer: MemoryPlanningInfoForBuffer = dataclasses.field( + default_factory=MemoryPlanningInfoForBuffer + ) + + def defining_op_name(self) -> str: + op = self.defining_op + assert op is not None + return op.get_name() + + def __hash__(self) -> int: + return hash(self.node.name) + + def debug_str(self) -> str: + result = IndentedBuffer() + name = self.get_name() + result.writeline(f"{name}: {type(self.node).__name__}") + result.writeline(f"{name}.layout = {self.node.layout}") + if self.get_aliases(): + result.writeline(f"{name}.aliases = {pformat(self.get_aliases())}") + if self.get_mutations(): + result.writeline(f"{name}.mutations = {pformat(self.get_mutations())}") + + if len(self.users) <= 1: + result.writeline(f"{name}.users = {self.users}") + else: + result.writeline(f"{name}.users = [") + with result.indent(1): + for user in self.users: + result.writeline(f"{user},") + result.writeline("]") + return result.getrawvalue() + + def get_name(self) -> str: + return self.node.get_name() + + def allocate(self) -> None: + assert self.node is not None + if not self.node.should_allocate(): + return + + if ( + self.node.get_inputs_that_alias_output() + or self.node.get_mutation_names() + or isinstance(self.node.get_output_spec(), ir.CommBufferLayout) + ): + V.graph.wrapper_code.codegen_allocation(self.node) + return + + # hacky check for if V.kernel is a real kernel or NullHandler + if ( + hasattr(V.kernel, "args") + and self.get_name() in V.kernel.inplace_update_buffers + ): + input_buffer: Union[ir.DonatedBuffer, ir.Buffer] + input_buffer_name = V.kernel.inplace_update_buffers[self.get_name()] + if input_buffer_name in self.scheduler.name_to_donated_buffer: + input_buffer = self.scheduler.name_to_donated_buffer[ + input_buffer_name + ].node + else: + input_buffer = self.scheduler.name_to_buf[input_buffer_name].node + V.graph.wrapper_code.codegen_inplace_reuse( + input_buffer, + self.node, + ) + else: + V.graph.wrapper_code.codegen_allocation(self.node) + + def can_free(self) -> bool: + # There's no real allocated buffer, no need to free it + assert self.node is not None + if isinstance(self.node.layout, ir.NoneLayout) or is_multi_outputs_template( + self.node + ): + return False + for use in self.users: + if isinstance(use.node, OutputNode): + return False + return True + + def set_users(self, users: list[NodeUser]) -> None: + # deduplicate + result: dict[int, NodeUser] = {} + for use in users: + if id(use.node) in result: + result[id(use.node)] = use.merge(result[id(use.node)]) + else: + result[id(use.node)] = use + self.users = list(result.values()) + + def get_aliases(self) -> Sequence[str]: + assert self.node is not None + return self.node.get_inputs_that_alias_output() + + def get_mutations(self) -> Sequence[str]: + assert self.node is not None + return self.node.get_mutation_names() + + def get_device(self) -> Optional[torch.device]: + return self.node.get_output_spec().get_device() + + +@dataclasses.dataclass +class SchedulerDonatedBuffer(SchedulerBuffer): + defining_op: Optional[BaseSchedulerNode] = None + + +class BaseSchedulerNode: + ancestors: OrderedSet[str] + group: tuple[torch.device, tuple[tuple[sympy.Expr, ...], ...]] + last_usage: OrderedSet[str] + # .min_order and .max_order are only relevant for "grouped" nodes such as FusedSchedulerNode. + # e.g. if the FusedSchedulerNode includes nodes (op_1, op_2, op_3), and op_X is X-th node + # in `self.scheduler.nodes`, then for this FusedSchedulerNode, .min_order is 1 and .max_order is 3. + # For non-"grouped" nodes (i.e. regular SchedulerNode), + # .min_order = .max_order = X if this node is X-th node in `self.scheduler.nodes`. + min_order: int + max_order: int + mpi_node: MemoryPlanningInfoForNode + mutation_renames: dict[str, str] + node: Optional[ir.Operation] = None + outputs: list[SchedulerBuffer] + outputs_by_name: dict[str, SchedulerBuffer] + override_estimated_runtime: Optional[float] = None + read_writes: dependencies.ReadWrites + unmet_dependencies: OrderedSet[Dep] + written: bool = False + + def __init__(self, scheduler: Scheduler) -> None: + self.scheduler: Scheduler = scheduler + self.debug_device_str: Callable[[BaseSchedulerNode], list[str]] = ( + lambda *args, **kwargs: [] + ) + + def _init_from_node(self, node: ir.Operation) -> None: + self.node = node + self.ancestors = OrderedSet() + self.last_usage = OrderedSet[ + str + ]() # buffers that won't be used after this kernel + self.written = False + self.outputs = [ + SchedulerBuffer( + scheduler=self.scheduler, + node=output, + defining_op=self, + ) + for output in node.get_outputs() + ] + self.outputs_by_name = {buf.get_name(): buf for buf in self.outputs} + + # mutation_renames for the current node. Due to potential + # more mutations happening later, this can be different + # to Scheduler.mutation_renames. Also this dict should be small + # since only mutation information relevant to the deps for this + # node is stored here. + self.mutation_renames = {} + + def __repr__(self) -> str: + return f"{type(self).__name__}(name={self.get_name()!r})" + + def debug_str(self) -> str: + """Longer form printout for trace logs""" + name = self.get_name() + buf = IndentedBuffer() + buf.splice( + f"""\ +{name}: {type(self).__name__}({type(getattr(self, "node", None)).__name__}) +{name}.writes = {pformat(self.read_writes.writes)} +{name}.unmet_dependencies = {pformat(self.unmet_dependencies)} +{name}.met_dependencies = {pformat(self.read_writes.reads - self.unmet_dependencies)} +{name}.outputs = [ + """ + ) + with buf.indent(): + for out in self.get_outputs(): + buf.splice(out.debug_str()) + buf.writeline("]") + + try: + buf.splice(self.debug_str_extra()) + except Exception: + log.warning("Ignoring error in debug_str()", exc_info=True) + + return buf.getrawvalue().rstrip() + + def debug_str_extra(self) -> str: + return "" + + def _debug_str_for_device(self) -> list[str]: + return self.debug_device_str(self) + + def debug_str_short(self) -> str: + maybe_data = getattr(self.node, "data", None) + data_str = "" + if isinstance(maybe_data, torch._inductor.ir.Pointwise): + data_str = ", " + maybe_data.str_helper( + [maybe_data.get_size()], shorten=False, multiline=False + ) + elif isinstance(maybe_data, torch._inductor.ir.Reduction): + data_str = ", " + maybe_data.str_helper( + [maybe_data.get_reduction_size(), maybe_data.get_reduction_type()], + shorten=False, + multiline=False, + ) + return f"{self}{data_str}" + + def log_details(self) -> None: + log.info( + "%s: unmet_dependencies = %s, writes = %s", + self, + self.unmet_dependencies, + self.read_writes.writes, + ) + + def reorder_loops_by_dep_pair( + self, self_dep: MemoryDep, other_dep: MemoryDep + ) -> bool: + return False + + def update_mutated_names(self, renames: dict[str, str]) -> None: + self.mutation_renames = { + name: renames[name] + for name in (dep.name for dep in self.read_writes.reads_and_writes()) + if name in renames + } + self.set_read_writes(self.read_writes.rename(self.mutation_renames)) + + def add_fake_dep(self, dep: Dep) -> None: + self.set_read_writes(self.read_writes.with_read(dep)) + + def has_aliasing_or_mutation(self) -> bool: + return any( + buf.get_aliases() or buf.get_mutations() for buf in self.get_outputs() + ) + + def set_read_writes(self, rw: dependencies.ReadWrites) -> None: + self.read_writes = rw + self.unmet_dependencies = self.read_writes.reads + self.prune_deps() + + def set_last_usage( + self, future_used_buffers: OrderedSet[str], mutation_real_name: dict[str, str] + ) -> None: + used_buffers = self.used_or_aliased_buffer_names() + used_buffers = OrderedSet(mutation_real_name.get(k, k) for k in used_buffers) + self.last_usage = used_buffers - future_used_buffers + + def mark_run(self) -> None: + for buf in self.outputs: + buf.allocate() + + def used_buffer_names(self) -> OrderedSet[str]: + return OrderedSet( + dep.name + for dep in itertools.chain(self.read_writes.reads, self.read_writes.writes) + ) + + def used_or_aliased_buffer_names(self) -> OrderedSet[str]: + """ + Returns buffer names used by this node, including aliases. + + Note: is_fake WeakDeps are excluded since they are purely for ordering + and should not affect buffer lifetime. + """ + used_names: OrderedSet[str] = OrderedSet() + + deps = [ + dep.name + for dep in itertools.chain(self.read_writes.reads, self.read_writes.writes) + if not (isinstance(dep, WeakDep) and dep.is_fake) + ] + while len(deps) > 0: + dep = deps.pop() + used_names.add(dep) + if V.graph.name_to_buffer.get(dep): + deps.extend( + alias + for alias in V.graph.name_to_buffer[ + dep + ].get_inputs_that_alias_output() + if alias not in used_names + ) + return used_names + + def prune_deps(self) -> None: + self.unmet_dependencies = OrderedSet( + dep + for dep in self.unmet_dependencies + if dep.name not in self.scheduler.available_buffer_names + ) + + def prune_weak_deps(self) -> None: + # Prune weak dependencies on operations that have been removed + def should_prune(dep: Dep) -> bool: + if not isinstance(dep, WeakDep): + return False + op_name = self.scheduler.name_to_buf[dep.name].defining_op_name() + return op_name in V.graph.removed_operations + + to_remove = OrderedSet( + dep for dep in self.read_writes.reads if should_prune(dep) + ) + self.set_read_writes(self.read_writes.remove_reads(to_remove)) + + def prune_redundant_deps( + self, name_to_fused_node: dict[str, BaseSchedulerNode] + ) -> None: + _prune_redundant_deps(self, name_to_fused_node, self.scheduler.name_to_buf) + + def get_name(self) -> str: + assert self.node is not None + return self.node.get_operation_name() + + def get_first_name(self) -> str: + return self.get_name() + + @cache_on_self + def get_operation_names(self) -> OrderedSet[str]: + return OrderedSet(node.get_name() for node in self.get_nodes()) + + @cache_on_self + def get_buffer_names(self) -> OrderedSet[str]: + return OrderedSet(out.get_name() for out in self.outputs) + + @cache_on_self + def can_codegen_in_low_precision(self) -> bool: + return all( + isinstance(n, SchedulerNode) + and can_codegen_without_upcasts(n, disallow_fp32_ops=True) + for n in self.get_nodes() + ) + + @cache_on_self + def can_codegen_without_upcasts(self) -> bool: + return all( + isinstance(n, SchedulerNode) and can_codegen_without_upcasts(n) + for n in self.get_nodes() + ) + + def get_nodes(self) -> Sequence[BaseSchedulerNode]: + return [self] + + def get_outputs(self) -> Sequence[SchedulerBuffer]: + return self.outputs + + def get_output(self, buf_name: str) -> SchedulerBuffer: + return self.outputs_by_name[buf_name] + + def get_device(self) -> Optional[torch.device]: + assert self.node is not None + return self.node.get_device() + + def is_cpu(self) -> bool: + device = self.get_device() + return device is not None and device.type == "cpu" + + def is_gpu(self) -> bool: + device = self.get_device() + return device is not None and is_gpu(device.type) + + def is_reduction(self) -> bool: + return False + + def is_native_matmul(self) -> bool: + return False + + def is_split_scan(self) -> bool: + return False + + def is_template(self) -> bool: + return False + + def is_extern(self) -> bool: + return False + + def is_foreach(self) -> bool: + return False + + def can_inplace(self, read_dep: dependencies.Dep) -> bool: + return False + + def has_side_effects(self) -> bool: + return False + + def decide_inplace_update(self) -> None: + """ + Decide if there should be inplace updates for the node + and record the decision in the active kernel. + """ + from .codegen.wrapper import can_match_buffer_size + + if not ( + isinstance(self, SchedulerNode) + and config.inplace_buffers + and V.graph.has_feature(self.get_device(), BackendFeature.INPLACE_BUFFERS) + and ( + not isinstance(V.kernel, torch._inductor.codegen.simd.SIMDKernel) + or getattr(V.kernel, "mutations", None) is not None + ) + # hacky check for if V.kernel is a real kernel or NullHandler + and hasattr(V.kernel, "args") + ): + return + + # NOTE remove V.graph.removed_operations once deps issue is fixed + inconsequential_nodes = ( + self.ancestors + | V.graph.removed_operations + | self.scheduler.completed_operations + ) + + def single_index_in_fused_node(buf_to_be_inplaced: SchedulerBuffer) -> bool: + # Inside of NodeUser, we track that the read and write are equivalent + # before deciding if the use can be inplace. + # But if that use is fused into a larger kernel, we need to check equivalence + # of other accesses in fused scheduler node as well. + fused_node = buf_to_be_inplaced.scheduler.get_fused_node(self) + buf_name = buf_to_be_inplaced.get_name() + # Dedup read/writes with equivalent indices + # TODO - would be nice if we could just cache accesses on ReadWrites, + # and enforce variant that this class & members are functional.. + deps: OrderedSet[Dep] = OrderedSet() + for user in buf_to_be_inplaced.users: + user_node = user.node + if not isinstance(user_node, BaseSchedulerNode): + continue + + if ( + user_node.get_first_name() + not in buf_to_be_inplaced.scheduler.name_to_fused_node + or buf_to_be_inplaced.scheduler.get_fused_node(user_node) + is not fused_node + ): + continue + + deps |= ( + o + for o in user_node.read_writes.reads_and_writes() + if o.name == buf_name + ) + if len(deps) > 1: + return False + + return True + + for buf in self.get_outputs(): + buf_node = buf.node + assert buf_node is not None + if ( + not buf_node.should_allocate() + or buf_node.get_inputs_that_alias_output() + or buf_node.get_mutation_names() + or buf.get_name() in V.graph.removed_buffers + ): + continue + + for read in self.read_writes.reads: + input_buf: Optional[Union[SchedulerBuffer, SchedulerDonatedBuffer]] + if read.name in self.scheduler.name_to_donated_buffer: + input_buf = self.scheduler.name_to_donated_buffer[read.name] + else: + input_buf = self.scheduler.name_to_buf.get(read.name) + + if ( + input_buf + and V.graph.wrapper_code.can_reuse(input_buf, self) + and not isinstance(input_buf.defining_op, NopKernelSchedulerNode) + ): + assert input_buf.users is not None + remaining_uses = [ + x + for x in input_buf.users + if x.node.get_name() not in inconsequential_nodes + ] + if ( + len(remaining_uses) == 1 + and remaining_uses[0].can_inplace + and remaining_uses[0].node is self + and input_buf.node is not None + and not isinstance( + input_buf.node.get_output_spec(), + ( + ir.NoneLayout, + ir.MultiOutputLayout, + ir.MutationLayoutSHOULDREMOVE, + ), + ) + and not ( + input_buf.defining_op + and isinstance( + input_buf.defining_op.node, + (ir.FallbackKernel, ir.MultiOutput), + ) + and len(input_buf.node.get_inputs_that_alias_output()) > 0 + ) + and can_match_buffer_size(input_buf.node, buf.node) + and single_index_in_fused_node(input_buf) + ): + # if there isn't a triton kernel, then we don't need to call triton-specific things. + # but TODO this might be a convenient place to signal to the Collective kernels to inplace + # (and, can we make "kernel" less generic of a name?) + V.kernel.args.make_inplace(input_buf.get_name(), buf.get_name()) + # mutations not tracked in cpp kernels + if isinstance( + V.kernel, torch._inductor.codegen.simd.SIMDKernel + ): + V.kernel.mutations.add(input_buf.get_name()) + V.kernel.mutations.add(buf.get_name()) + + V.kernel.inplace_update_buffers[buf.get_name()] = ( + input_buf.get_name() + ) + break + + def codegen_originating_info( + self, buffer: IndentedBuffer, only_once: bool = True + ) -> None: + if not config.comment_origin: + return + + if only_once and self.written: + return + assert self.node is not None + origins = self.node.get_origins() + out_lines = [] + + for o in origins: + if o.op == "output": + # These are boring and samey + continue + + out_lines.append("") + # TODO(voz): Should the pragma be constant somewhere? + out_lines.append("#pragma CMT ORIGIN:") + op_info_str = f"#pragma CMT {o.op} {o.target}" + if "seq_nr" in o.meta: + op_info_str = op_info_str + f" seq_nr:{o.meta['seq_nr']}" + out_lines.append(op_info_str) + if "stack_trace" in o.meta: + stack_trace = f"{o.meta['stack_trace']}" + stack_trace_last_line = stack_trace.rsplit("|", maxsplit=1)[-1] + out_lines.append( + "#pragma CMT " + + stack_trace_last_line.replace("{", "{{") + .replace("}", "}}") + .replace("\n", "\\") + .replace( + "\\", "\\\\" + ) # For windows safe path, avoid for example \x, \U. + ) + out_lines.append("#pragma CMT END ORIGIN") + out_lines.append("") + + if len(out_lines) == 0: + return + + # TODO(voz): Ostensibly, we should not need this. But there are cases where C++ codegen does + # not use BracesBuffer, so we have no good indicator of a C++ buffer atm. + buffer.writelines(out_lines) + self.written = True + + @cache_on_self + def get_read_write_buffers_sizes(self) -> int: + return self.get_read_write_buffers_sizes_impl( + include_reads=True, include_writes=True + ) + + @cache_on_self + def get_read_buffer_sizes(self) -> int: + return self.get_read_write_buffers_sizes_impl( + include_reads=True, include_writes=False + ) + + @cache_on_self + def get_write_buffer_sizes(self) -> int: + return self.get_read_write_buffers_sizes_impl( + include_reads=False, include_writes=True + ) + + def get_read_write_buffers_sizes_impl( + self, include_reads: bool, include_writes: bool + ) -> int: + return sum( + self.get_read_write_buffer_accesses( + include_reads=include_reads, include_writes=include_writes + ).values(), + start=0, + ) + + def get_read_write_buffer_accesses( + self, include_reads: bool, include_writes: bool + ) -> dict[str, int]: + """ + Counting the number of bytes accessed for a kernel is + surprisingly tricky. In particular, there is a differentiation + between 'theoretical' memory accesses and practical memory + accesses. For example, a layernorm kernel may actually access an + input 3 times, but in theory, it only needs to access its input + once (and may be optimized to do so through say, persistent + reductions) + + Another example is that even though a buffer is passed in, we may + not access the entire buffer. This may occur if we are accessing + a slice of the buffer. Another tricky case is for indirect + indexing, where the amount of bytes accessed depends on the + values of the input. + + What this function aims to compute is the memory accesses for + worst-case inputs, best-case optimization. What this means is + that for each buffer we compute the amount of potential accesses in two ways and take the minimum. + + 1. Numel in ranges multiplied by number of deps the buffer has + 2. The buffer size + + Returns memory accesses per buffer. + """ + if isinstance(self, NopKernelSchedulerNode): + return {} + if isinstance(self, ExternKernelSchedulerNode) and isinstance( + self.node, MultiOutput + ): + # todo: Calculate this - it's kinda annoying. + return {} + if ( + isinstance(self, ExternKernelSchedulerNode) + and isinstance(self.node, ir.FallbackKernel) + and self.node.op_overload + is torch._prims.rng_prims.graphsafe_run_with_rng_state + ): + return {} + + def try_size_hint(s: sympy.Expr) -> int: + return V.graph.sizevars.size_hint(s, fallback=0) + + if isinstance(self, SchedulerNode): + node_numel = try_size_hint( + sympy_product(self.get_ranges()[0]) + * sympy_product(self.get_ranges()[1]), + ) + else: + node_numel = int(1e9) + buf_accesses = collections.defaultdict(list) + + if include_reads: + for dep in self.read_writes.reads: + buf_accesses[dep.name].append(dep) + + if include_writes: + for dep in self.read_writes.writes: + buf_accesses[dep.name].append(dep) + + reads = ( + OrderedSet(dep.name for dep in self.read_writes.reads) + if include_reads + else OrderedSet() + ) + writes = ( + OrderedSet(dep.name for dep in self.read_writes.writes) + if include_writes + else OrderedSet() + ) + + def is_materialized(buf: str, snodes: Sequence[BaseSchedulerNode]) -> bool: + users = self.scheduler.name_to_buf[buf].users + buf_uses = OrderedSet(user.node for user in users) + return len(buf_uses - OrderedSet(snodes)) > 0 + + if isinstance(self, FusedSchedulerNode): + removed_buffers = OrderedSet( + dep for dep in writes if not is_materialized(dep, self.snodes) + ) + writes = writes - removed_buffers + reads = reads - removed_buffers + + buf_byte_accesses: dict[str, int] = {} + + for buf_name in reads | writes: + buf_accessed_elems = sum(node_numel for dep in buf_accesses[buf_name]) + buf: Union[ir.Buffer, ir.TensorBox, ir.TorchBindObject] + if buf_name in V.graph.name_to_buffer: + buf = V.graph.name_to_buffer[buf_name] + elif buf_name in V.graph.graph_inputs: + buf = V.graph.graph_inputs[buf_name] + else: + continue + + def get_buf_bytes( + buf: Optional[Union[ir.Buffer, ir.TensorBox, ir.TorchBindObject]], + ) -> int: + if not buf: + return 0 + + if isinstance(buf, ir.TorchBindObject): + return buf.get_buf_bytes() + elif isinstance(buf.layout, MultiOutputLayout): + # Kind of a lazy way to get the MultiOutput nodes corresponding to + # a MultiOutputLayout + users = self.scheduler.name_to_buf[buf.get_name()].users + tot = 0 + for user in users: + assert isinstance(user.node, BaseSchedulerNode) + if isinstance(user.node.node, MultiOutput): + for sched_buf in user.node.get_outputs(): + tot += get_buf_bytes(sched_buf.node) + else: + # Buf is a MultiOutputLayout but not all of its + # users are MultiOutputs... + # TODO: Figure out what's going on + return 0 + return tot + elif isinstance(buf.layout, ir.NoneLayout): + return sum( + get_buf_bytes(V.graph.get_buffer(mut_name)) + for mut_name in buf.get_mutation_names() + ) + else: + buf_elems = try_size_hint(sympy_product(buf.get_size())) + return get_dtype_size(buf.get_dtype()) * min( + buf_accessed_elems, buf_elems + ) + + buf_bytes = get_buf_bytes(buf) + if buf_name not in buf_byte_accesses: + buf_byte_accesses[buf_name] = buf_bytes + else: + buf_byte_accesses[buf_name] += buf_bytes + + return buf_byte_accesses + + @cache_on_self + def estimate_flops(self) -> int | None: + if self.node is None: + return None + fx_node = self.node.get_origin_node() + if fx_node is None: + return None + + flops = count_flops_fx(fx_node) + if flops is None: + return None + + resolved_flops = V.graph.sizevars.size_hint(flops, fallback=0) + counters["inductor"]["flop_count"] += resolved_flops + return resolved_flops + + def get_estimated_runtime(self) -> float: + if self.override_estimated_runtime is not None: + return self.override_estimated_runtime + + return self._get_estimated_runtime() + + @cache_on_self + def _get_estimated_runtime(self) -> float: + """ + Returns estimated op runtime in milliseconds (ms) + """ + buf = self.get_nodes()[0].get_outputs()[0] + layout = buf.node.get_output_spec() + if not is_gpu(get_device_type(layout)): + # default to no reordering based on runtime + return 0 + + # Collective kernels + if is_collective(self.node): + assert isinstance(self.node, ir.IRNode) + try: + if config_comms.runtime_estimations_use_nccl_lib_estimations: + cache_key = get_estimate_runtime_cache_key_from_snode(self) + cache = get_estimate_runtime_cache() + cache_val = cache.lookup(cache_key) + if cache_val is not None: + assert isinstance(cache_val, float) + return cache_val + + ms = estimate_nccl_collective_runtime_nccl_estimator(self) + if ms is None: + # NCCL estimations fail: fallback to in-tree algorithmic estimation. + ms = estimate_nccl_collective_runtime(self.node) + + cache.set_value(cache_key, value=ms) + return ms + return estimate_nccl_collective_runtime(self.node) + except ValueError as e: + # We don't know how to estimate runtime for this collective, + # falling back to 0 + log.info(e) # noqa: G200 + return 0 + except TypeError as e: + # this happens when the collective is not of type ir._CollectiveKernel + log.info(e) # noqa: G200 + return 0 + + elif is_wait(self.node): + # ir.Wait is only used for collective ops. + # The time needed for the collective op is already estimated and considered + # when we are processing the collective op IR node, so ir.Wait takes 0 time + # since it doesn't take extra time to get the result after the collective is completed. + return 0 + + ret = maybe_estimate_runtime_benchmark(self) + if ret is not None: + return ret + + dtype = buf.node.maybe_get_dtype() + try: + gpu_memory_bandwidth = get_gpu_dram_gbps() + gpu_flops = get_device_tflops(dtype) * 10**12 + # If cudaGetDeviceProperties returns 0 for gpu_memory_bandwidth or gpu_flops + # there is a chance to continue execution successfully. Otherwise, it would fail with + # ZeroDivisionError below. + if gpu_memory_bandwidth <= 0: + raise AssertionError( + f"gpu_memory_bandwidth cannot be <= 0, but got {gpu_memory_bandwidth}" + ) + if gpu_flops <= 0: + raise AssertionError(f"gpu_flops cannot be <= 0, but got {gpu_flops}") + except Exception: + return 0 + + flops_est = self.estimate_flops() + + if flops_est == 0 or flops_est is None: + # no flops estimate, so fall back to memory estimate + ns = self.get_read_write_buffers_sizes() / gpu_memory_bandwidth + ms = ns / 1e6 + return ms + + # TODO(xmfan): find a better heuristic to model FLOPS/latency relationship + factor = 1.0 + counted_bytes = self.get_read_write_buffers_sizes() + counted_bytes = 0 if counted_bytes is None else counted_bytes + compute_time = (factor * flops_est / gpu_flops) * 1e9 + transfer_time = counted_bytes / gpu_memory_bandwidth + + # Return estimated runtime in milliseconds + ns = max(compute_time, transfer_time) + ms = ns / 1e6 + return ms + + def get_template_node(self) -> Optional[ir.TemplateBuffer]: + return None + + def get_template_node_or_throw(self) -> ir.TemplateBuffer: + template = self.get_template_node() + assert template is not None + return template + + @staticmethod + def get_prologue_template_epilogue( + nodes: list[BaseSchedulerNode], + ) -> tuple[list[BaseSchedulerNode], BaseSchedulerNode, list[BaseSchedulerNode]]: + """ + For the list of nodes, get the prologue, template, and epilogue + """ + template_index = next(i for i, n in enumerate(nodes) if n.is_template()) + + prologue = nodes[:template_index] + template_node = nodes[template_index] + epilogue = nodes[template_index + 1 :] + return prologue, template_node, epilogue + + +@functools.cache +def get_estimate_runtime_cache() -> torch._inductor.codecache.LocalCache: + return torch._inductor.codecache.LocalCache() + + +def get_estimate_runtime_cache_key_from_snode(snode: BaseSchedulerNode) -> str: + python_kernel_name = getattr(snode.node, "python_kernel_name", "") + args = snode.node.inputs # type: ignore[union-attr] + args = snode.node.fill_non_provided_args( # type: ignore[union-attr] + [*args, *snode.node.constant_args], # type: ignore[union-attr] + snode.node.kwargs, # type: ignore[union-attr] + ) + kwargs = snode.node.kwargs # type: ignore[union-attr] + flat_args, flat_args_pytree_spec = pytree.tree_flatten((args, kwargs)) + + def _is_tensor_ir(x) -> bool: # type: ignore[no-untyped-def] + return isinstance(x, ir.IRNode) and not isinstance(x, ir.GeneratorState) + + cache_key = str( + (python_kernel_name,) + + tuple(tuple(a.get_size()) if _is_tensor_ir(a) else None for a in flat_args) + ) + return cache_key + + +def _get_mm_like_fn(snode: BaseSchedulerNode) -> Optional[Callable[[Any], Any]]: + if not isinstance(snode, ExternKernelSchedulerNode): + return None + mms_fns = { + "extern_kernels.mm": torch.ops.aten.mm, + "extern_kernels.bmm": torch.ops.aten.bmm, + "extern_kernels.addmm": torch.ops.aten.addmm, + } + python_kernel_name = getattr(snode.node, "python_kernel_name", "") + if python_kernel_name not in mms_fns: + return None + if not isinstance(snode.node, ir.ExternKernel): + return None + return mms_fns[python_kernel_name] + + +def maybe_estimate_runtime_benchmark(snode: BaseSchedulerNode) -> Optional[float]: + bench_fn = None + args_kwargs_fn = None + if config.runtime_estimations_mms_benchmark: + mm_fn = _get_mm_like_fn(snode) + if mm_fn is None: + return None + bench_fn = mm_fn + # pyrefly: ignore [unbound-name] + args_kwargs_fn = lambda: snode_args_kwargs(snode) # noqa: E731 + else: + return None + + cache_key = get_estimate_runtime_cache_key_from_snode(snode) + cache = get_estimate_runtime_cache() + cache_val = cache.lookup(cache_key) + if cache_val is not None: + assert isinstance(cache_val, float) + return cache_val + + from .utils import snode_args_kwargs + + args, kwargs = args_kwargs_fn() + from torch._inductor.runtime.benchmarking import benchmarker + + ms = benchmarker.benchmark(bench_fn, args, kwargs) # type: ignore[arg-type] + + cache.set_value(cache_key, value=ms) + return ms + + +@dataclasses.dataclass(slots=True) +class WhyNoFuse: + name1: str + name2: str + reason: str + args: tuple[Any, ...] + + def __init__(self, node1: BaseSchedulerNode, node2: BaseSchedulerNode) -> None: + self.name1 = node1.get_name() + self.name2 = node2.get_name() + + def __call__(self, reason: str, *args: Any) -> None: + self.reason = reason + self.args = args + fusion_log.debug(self) + + def __str__(self) -> str: + return f"cannot fuse {self.name1} with {self.name2}: " + ( + self.reason % self.args + ) + + +def pformat(obj: Any) -> str: + if isinstance(obj, (OrderedSet, set)): # noqa: set_linter + # pformat has trouble with sets of sympy exprs + obj = sorted(obj, key=str) + result = pprint.pformat(obj, indent=4) + if "\n" in result: + return f"\n{textwrap.indent(result, ' ' * 4)}" + return result + + +class OutputNode: + def __init__(self, dep: StarDep) -> None: + self.unmet_dependencies = OrderedSet([dep]) + + def is_reduction(self) -> bool: + return False + + def get_inputs_that_alias_output(self) -> Sequence[str]: + return () + + def get_name(self) -> str: + return "OUTPUT" + + __repr__ = get_name + + +def _prune_redundant_deps( + node: BaseSchedulerNode, + name_to_fused_node: dict[str, BaseSchedulerNode], + name_to_buf: dict[str, SchedulerBuffer], +) -> None: + """ + Prunes weakdeps intended for mutation ordering + on an upstream fused node if after fusion there is another dependency + on the fused upstream node, making the weakdep redundant + + In essence this enforces an ordering on fusions. As fusions occur, weakdeps will + be incrementally removed, enabling other fusions, ensuring they are fused in order. + """ + name_to_dep_count: Counter[str] = collections.Counter() + + for dep in node.unmet_dependencies: + if not isinstance(dep, WeakDep): + op_name = name_to_buf[dep.name].defining_op_name() + name_to_dep_count[name_to_fused_node[op_name].get_name()] += 1 + + def should_prune(dep: Dep) -> bool: + if isinstance(dep, WeakDep): + op_name = name_to_buf[dep.name].defining_op_name() + is_redundant = name_to_dep_count[ + name_to_fused_node[op_name].get_name() + ] > 0 and node.scheduler.fusable_weak_dep( + dep, name_to_fused_node[op_name], node + ) + # These can occur because fused nodes always gather deps from their snodes + # If B has a weakdep on A + # B gets fused with C, then any time BC is fused, the weakdep will reappear + is_self_dep = name_to_fused_node[op_name] == node + return is_redundant or is_self_dep + else: + return False + + deps_to_prune = OrderedSet( + dep for dep in node.unmet_dependencies if should_prune(dep) + ) + + if deps_to_prune: + node.unmet_dependencies = node.unmet_dependencies - deps_to_prune + node.set_read_writes(node.read_writes.remove_reads(deps_to_prune)) + + +class ExternKernelSchedulerNode(BaseSchedulerNode): + def __init__(self, scheduler: Scheduler, node: ir.Operation) -> None: + super().__init__(scheduler) + self._init_from_node(node) + self.set_read_writes(node.get_read_writes()) + + def debug_str_extra(self) -> str: + return f"{self.get_name()}.node.kernel = {getattr(self.node, 'python_kernel_name', None)}" + + def is_extern(self) -> bool: + return True + + def has_side_effects(self) -> bool: + assert self.node is not None + return hasattr(self.node, "has_side_effects") and self.node.has_side_effects() + + +class NopKernelSchedulerNode(BaseSchedulerNode): + def __init__(self, scheduler: Scheduler, node: ir.Operation) -> None: + super().__init__(scheduler) + self._init_from_node(node) + self.set_read_writes(node.get_read_writes()) + + +class SchedulerNode(BaseSchedulerNode): + """ + A SchedulerNode is a node for scheduling that encapsulates either + a ComputedBuffer or a TemplateBuffer. + """ + + _sizes: tuple[Sequence[sympy.Expr], ...] + _body: LoopBody + + def __init__( + self, + scheduler: Scheduler, + node: Union[ir.ComputedBuffer, ir.TemplateBuffer], + ) -> None: + super().__init__(scheduler) + self._init_from_node(node) + self._compute_attrs() + + def _compute_attrs( + self, + extra_indexing_constraints: Optional[tuple[dict[Any, Any], list[Any]]] = None, + recompute_sizes_body_func: Optional[Callable[_P, _T]] = None, + ) -> None: + assert isinstance(self.node, (ir.ComputedBuffer, ir.TemplateBuffer)) + self._sizes, body = self.node.simplify_and_reorder( + extra_indexing_constraints=extra_indexing_constraints, + recompute_sizes_body_func=recompute_sizes_body_func, + ) + self._body = body # type: ignore[assignment] + + device = self.node.get_device_or_error() + group_fn = self.scheduler.get_backend(device).group_fn + self.group = (device, group_fn(self._sizes)) + + # Don't normalize since normalization will merge loops which + # makes it hard to decide new loop orders. + should_normalize = not config.loop_ordering_after_fusion or not is_gpu( + device.type + ) + + if isinstance(self.node, ir.TemplateBuffer): + self.set_read_writes( + self.node.extract_read_writes(normalize=should_normalize) + ) + else: + self.set_read_writes( + dependencies.extract_read_writes( + self._body, *self._sizes, normalize=should_normalize + ) + ) + + def recompute_size_and_body( + self, + extra_indexing_constraints: Optional[tuple[dict[Any, Any], list[Any]]] = None, + recompute_sizes_body_func: Optional[Callable[..., Any]] = None, + ) -> None: + self._compute_attrs( + extra_indexing_constraints=extra_indexing_constraints, + recompute_sizes_body_func=recompute_sizes_body_func, + ) + + def refresh_dependencies( + self, normalize: bool, need_clear_tiling_cache: bool + ) -> None: + # Fake dependencies are added manually. They can not be analyzed from + # extract_read_writes. Find them out and apply manually. + fake_deps: OrderedSet[Dep] = OrderedSet( + dep for dep in self.read_writes.reads if isinstance(dep, (WeakDep, StarDep)) + ) + + # don't normalize since the loop order may need to be further changed + # later + self.set_read_writes( + dependencies.extract_read_writes( + self._body, *self._sizes, normalize=normalize + ) + .with_read(fake_deps) + .rename(self.mutation_renames) + ) + + self.pointwise_read_writes.clear_cache(self) + + if need_clear_tiling_cache: + from .codegen.simd import SIMDScheduling + + # TODO(shunting) if this cause compilation time increase when + # enabling LOAF by default, try just clearing the specific cache + # entry by using a customized cache implementation rather than + # lru_cache. + SIMDScheduling.candidate_tilings.cache_clear() + + def apply_new_loop_order(self, new_order: Sequence[int]) -> None: + self._body = self._body.reorder_iter_loops( + new_order, + ) + self._sizes = self._body.sizes + + self.refresh_dependencies(normalize=False, need_clear_tiling_cache=True) + + def swap_pw_red_dimension(self) -> None: + num_rdims = self._body.get_original_num_rdims() + num_pwdims = len(self._body.iter_vars) - num_rdims + pwdims = tuple(range(num_pwdims)) + rdims = tuple(range(num_pwdims, num_pwdims + num_rdims)) + + self.apply_new_loop_order(rdims + pwdims) + assert len(self.group[1]) == 2 + self.group = self.group[0], (self.group[1][1], self.group[1][0]) + + def extract_pw_from_reduction(self) -> BaseSchedulerNode: + self._body = self._body.extract_pw_from_reduction() + return self + + def cancel_reduction_split(self) -> None: + if not MixOrderReduction.is_split_reduction(self): + return + assert isinstance(self.node, ir.ComputedBuffer) + with self.node.with_original_inner_fn(): + self._compute_attrs() + + def expand_dimension_for_pointwise_node( + self, dimension: int, new_range: int + ) -> None: + assert isinstance(self.node, (ir.ComputedBuffer, ir.TemplateBuffer)) + + self._body = self._body.expand_dimension_for_pointwise_node( + dimension, new_range + ) + self._sizes = self._body.sizes + + device = self.node.get_device_or_error() + group_fn = self.scheduler.get_backend(device).group_fn + self.group = (device, group_fn(self._sizes)) + + # Need normalize the prefix name to facilitate finding common dependencies + self.refresh_dependencies(normalize=True, need_clear_tiling_cache=True) + + def merge_loops(self) -> None: + self._body = self._body.merge_loops() + self._sizes = self._body.sizes + + # merge_loops is called after loop reordering. + # We still need retain fake dependencies since codegen the + # estimated amount of memory access rely on them. + # + # Merge loops does not affect the tiling decision. So we + # don't need clear the tiling cache. + self.refresh_dependencies(normalize=True, need_clear_tiling_cache=False) + + def reorder_loops_by_dep_pair( + self, self_dep: MemoryDep, other_dep: MemoryDep + ) -> bool: + new_order = None + self_sizes = self._sizes[0] + if len(self_sizes) == self_dep.num_vars == other_dep.num_vars: + new_order = self_dep.decide_loop_order_to_match(other_dep) + + if new_order: + # pyrefly: ignore [bad-assignment] + metrics.num_loop_reordering += 1 + loop_ordering_log.debug( + "Reorder loops for %s with order %s", self.get_name(), new_order + ) + self.apply_new_loop_order(new_order) + return True + else: + loop_ordering_log.debug( + "Don't reordering %s because we can not decide the suitable loop order", + self.get_name(), + ) + return False + + def debug_str_extra(self) -> str: + name = self.get_name() + lines = [ + f"{name}.group.device = {self.group[0]}", + f"{name}.group.iteration = {self.group[1]}", + f"{name}.sizes = {self._sizes}", + ] + for dep in self.read_writes.reads_and_writes(): + if not isinstance(dep, WeakDep): + buf_name = dep.name + buf = V.graph.get_buffer(buf_name) + if not isinstance(buf, ir.TorchBindObject): + lines.append(f"{buf_name}_layout = {pformat(buf.layout)}") + if isinstance(self._body, LoopBody): + lines.append(f"class {name}_loop_body:") + lines.append(textwrap.indent(self._body.debug_str(), " ")) + + assert self.node is not None + lines.extend(self._debug_str_for_device()) + + return "\n".join(lines) + + def get_ranges(self) -> Sequence[Sequence[sympy.Expr]]: + return self._sizes + + def is_reduction(self) -> bool: + assert isinstance(self.node, (ir.ComputedBuffer, ir.TemplateBuffer)), ( + f"{type(self.node)=}" + ) + + # self._body containing partial accumulate means the reduction is + # converted to a pointwise node. Need this extra check since + # we change self._body but didn't change self.node (IRNode) + # when converting a reduction to a pointwise + return bool(self.node.get_reduction_type()) and ( + self._body is None or not self._body.has_partial_accumulate + ) + + def is_native_matmul(self) -> bool: + assert isinstance(self.node, ir.ComputedBuffer), f"{type(self.node)=}" + return self.node.get_reduction_type() == "dot" + + def is_split_scan(self) -> bool: + assert isinstance(self.node, (ir.ComputedBuffer, ir.TemplateBuffer)), ( + f"{type(self.node)=}" + ) + return isinstance(self.node, ir.ComputedBuffer) and isinstance( + self.node.data, ir.SplitScan + ) + + def is_template(self) -> bool: + return isinstance(self.node, ir.TemplateBuffer) + + def get_template_node(self) -> Optional[ir.TemplateBuffer]: + return self.node if isinstance(self.node, ir.TemplateBuffer) else None + + def run(self, *index_vars: Sequence[sympy.Expr]) -> None: + self.decide_inplace_update() + self.mark_run() + self.codegen(index_vars) + + def ranges_from_index_vars( + self, index_vars: Sequence[Sequence[sympy.Expr]] + ) -> dict[sympy.Expr, sympy.Expr]: + sizes = self._sizes + assert sum(map(len, sizes)) == sum(map(len, index_vars)) + var_ranges = dict( + zip( + itertools.chain.from_iterable(index_vars), + itertools.chain.from_iterable(sizes), + ) + ) + return var_ranges + + def codegen(self, index_vars: Sequence[Sequence[sympy.Expr]]) -> None: + """ + Generate code for this node using the provided index variables. + + This method sets up the appropriate context for code generation, including + simplifying indexing expressions based on the variable ranges, and then + calls the node's body function with the index variables. + + Args: + index_vars: A sequence of sequences of sympy expressions representing + the index variables for each dimension of the computation. + """ + var_ranges = self.ranges_from_index_vars(index_vars) + try: + with ( + V.set_ops_handler(SimplifyIndexing(V.get_ops_handler(), var_ranges)), + V.kernel.set_current_node(self), + ): + self._body(*index_vars) + except Exception: + log.fatal("Error in codegen for %s", self.node) + raise + + def pointwise_or_reduction_read_writes( + self, pointwise: bool = True + ) -> dependencies.ReadWrites: + """ + Get the memory dependencies in either the pointwise or the reduction axes. + """ + keep_sizes, ignore_sizes = self._sizes if pointwise else reversed(self._sizes) + return dependencies.extract_read_writes( + self._body, keep_sizes, hidden_args=[[sympy.S.Zero] * len(ignore_sizes)] + ) + + @cache_on_self + def pointwise_read_writes(self) -> dependencies.ReadWrites: + """ + Get the memory dependencies in the non-reduction axes. + """ + return self.pointwise_or_reduction_read_writes(pointwise=True) + + @cache_on_self + def reduction_read_writes(self) -> dependencies.ReadWrites: + """ + Get the memory dependencies in the reduction axes. + """ + return self.pointwise_or_reduction_read_writes(pointwise=False) + + def can_inplace(self, read_dep: dependencies.Dep) -> bool: + if self.is_template(): + return False + if any(out.get_aliases() for out in self.get_outputs()): + return False + if len(self.read_writes.writes) == 1 and isinstance( + read_dep, dependencies.MemoryDep + ): + write_dep = next(iter(self.read_writes.writes)) + assert isinstance(write_dep, dependencies.MemoryDep), f"{type(write_dep)=}" + return read_dep.index == write_dep.index and read_dep.size == write_dep.size + return False + + @cache_on_self + def _get_atomic_add_buffers(self) -> OrderedSet[str]: + buffers_store_as_atomic_add: OrderedSet[str] = OrderedSet() + if isinstance(self._body, LoopBody): + for node in self._body.get_nodes(): + if ( + node.op == "call_method" + and node.target == "store" + and ( + ("mode" in node.kwargs and node.kwargs["mode"] == "atomic_add") + or (len(node.args) == 5 and node.args[4] == "atomic_add") + ) + ): + buffers_store_as_atomic_add.add( + node.kwargs["name"] + if "name" in node.kwargs + else (node.args[1] if len(node.args) >= 2 else "") + ) + return buffers_store_as_atomic_add + + @cache_on_self + def has_side_effects(self) -> bool: + # self._body is None sometimes that's why this check was added + if self._body is not None and self._body.has_op("device_assert_async"): + return True + return super().has_side_effects() + + +def refresh_group_node_dependencies( + group_snode: Union[FusedSchedulerNode, GroupedSchedulerNode], +) -> None: + snodes = group_snode.snodes + group_snode.set_read_writes( + dependencies.ReadWrites.merge_list([x.read_writes for x in snodes]) + ) + + group_snode.unmet_dependencies = ( + OrderedSet( + dep + for dep in OrderedSet.union(*[x.unmet_dependencies for x in snodes]) + if dep.name not in group_snode.get_buffer_names() + ) + - group_snode.read_writes.writes + ) + + +def init_group_node( + group_snode: Union[FusedSchedulerNode, GroupedSchedulerNode], + scheduler: Scheduler, + snodes: list[BaseSchedulerNode], +) -> None: + assert isinstance(group_snode, (FusedSchedulerNode, GroupedSchedulerNode)) + group_snode.snodes = snodes + group_snode.scheduler = scheduler + group_snode.node = None + group_snode.ancestors = OrderedSet.union( + *[x.ancestors for x in snodes if x.ancestors is not None] + ) + + refresh_group_node_dependencies(group_snode) + + group_snode.min_order = min(x.min_order for x in group_snode.snodes) + group_snode.max_order = max(x.max_order for x in group_snode.snodes) + group_snode.outputs_by_name = { + buf.get_name(): buf for buf in group_snode.get_outputs() + } + + +class FusedSchedulerNode(BaseSchedulerNode): + """ + This is a "fake" scheduler node that represents a group of scheduler nodes + that are meant to be fused together. The way it does this is by maintaining + its unmet dependencies as the union of its constituent nodes. + """ + + snodes: list[BaseSchedulerNode] + + @classmethod + def fuse( + cls, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> FusedSchedulerNode: + assert node1.scheduler is node2.scheduler + assert isinstance(node1, (SchedulerNode, FusedSchedulerNode)) + if node1.is_template() and isinstance(node2, ExternKernelSchedulerNode): + # Fuse multi outputs template and its outputs + # * Node1 has memorydep of MultiOutput in reads + # * Node2 has StarDep of MultiOutput in writes + # Rewrite the Node2' StarDep to MemoryDep, because calculate score_fusion_memory + # of the template node and its epilogue requires the same type of dependencies + assert isinstance(node2.node, MultiOutput) + assert len(node2.read_writes.writes) == 1 + assert isinstance(next(iter(node2.read_writes.writes)), StarDep) + name = next(iter(node2.read_writes.writes)).name + template_nodes = [node for node in node1.get_nodes() if node.is_template()] + assert len(template_nodes) == 1 + template_node = template_nodes[0] + assert len(template_node.read_writes.writes) == 1 + write = next(iter(template_node.read_writes.writes)) + assert isinstance(write, MemoryDep) + node2.read_writes.writes = OrderedSet( + [ + MemoryDep( + name, write.index, write.var_names, write.size, write.mode + ), + ] + ) + else: + assert isinstance(node2, (SchedulerNode, FusedSchedulerNode)) + nodes = list(itertools.chain(node1.get_nodes(), node2.get_nodes())) + return cls(node1.scheduler, nodes) + + def extract_pw_from_reduction(self) -> BaseSchedulerNode: + for subnode in self.snodes: + assert isinstance(subnode, SchedulerNode) + assert subnode.is_reduction() + subnode.extract_pw_from_reduction() + return self + + def swap_pw_red_dimension(self) -> None: + for subnode in self.snodes: + assert isinstance(subnode, SchedulerNode) + subnode.swap_pw_red_dimension() + + @cache_on_self + def estimate_flops(self) -> int | None: + # don't increment counters in fused methods so we don't double count + fps = list( + filter( + None, + ( + node.estimate_flops() + for node in self.get_nodes() + if node.is_template() or node.is_extern() + ), + ) + ) + if len(fps) == 0: + return None + ret = sum(fps) + return ret + + def reorder_loops_by_dep_pair( + self, self_dep: MemoryDep, other_dep: MemoryDep + ) -> bool: + """ + Return true if a loop reordering is performed. + """ + if self.is_template(): + # We can not really reorder loops for a triton template + return False + self_sizes = None + for snode in self.snodes: + assert isinstance(snode, SchedulerNode) + if self_sizes is not None and tuple(self_sizes) != tuple(snode._sizes[0]): + loop_ordering_log.debug( + "Can not reorder fused node due to different sizes" + ) + return False + self_sizes = snode._sizes[0] + new_order = None + + assert self_sizes is not None + if len(self_sizes) == self_dep.num_vars == other_dep.num_vars: + new_order = self_dep.decide_loop_order_to_match(other_dep) + + if not new_order: + loop_ordering_log.debug( + "Dont reordering fused node %s because we can not decide the suitable loop order", + self.get_name(), + ) + return False + # pyrefly: ignore [bad-assignment] + metrics.num_loop_reordering += 1 + loop_ordering_log.debug( + "Reorder loops for fused node %s with order %s", self.get_name(), new_order + ) + for snode in self.snodes: + assert isinstance(snode, SchedulerNode) + snode.apply_new_loop_order(new_order) + + refresh_group_node_dependencies(self) + return True + + def __init__(self, scheduler: Scheduler, snodes: list[BaseSchedulerNode]) -> None: + super().__init__(scheduler) + init_group_node(self, scheduler, snodes) + self.users: list[NodeUser] = [] + self.group = max(snodes, key=lambda x: int(x.is_reduction())).group + + @cache_on_self + def get_name(self) -> str: + return "_".join([x.get_name() for x in self.snodes]) + + def get_first_name(self) -> str: + return self.snodes[0].get_name() + + @cache_on_self + def get_buffer_names(self) -> OrderedSet[str]: + return OrderedSet.union(*[x.get_buffer_names() for x in self.snodes]) + + def get_outputs(self) -> list[SchedulerBuffer]: + result: list[SchedulerBuffer] = [] + for node in self.snodes: + result.extend(node.get_outputs()) + return result + + def debug_str_extra(self) -> str: + lines = [ + f"{self.get_name()}.snodes[{i}] =\n{node.debug_str()}" + for i, node in enumerate(self.snodes) + ] + node = self.snodes[0].node + if node is not None: + lines.extend(self._debug_str_for_device()) + + return textwrap.indent("\n".join(lines).rstrip(), " ") + + def debug_str_short(self) -> str: + snodes_str = [node.debug_str_short() for node in self.snodes] + return f"{self}, snodes: {snodes_str}" + + def set_last_usage( + self, future_used_buffers: OrderedSet[str], mutation_real_name: dict[str, str] + ) -> None: + # Set self.last_usage using the global information + # This will be used for inter-kernel optimisations + super().set_last_usage(future_used_buffers, mutation_real_name) + # Set self.last_usage on the snodes + # This will be used for optimisations within the kernel + future_used_buffers: OrderedSet[str] = OrderedSet() + for node in reversed(self.snodes): + node.set_last_usage(future_used_buffers, mutation_real_name) + future_used_buffers.update(node.last_usage) + + @cache_on_self + def used_buffer_names(self) -> OrderedSet[str]: + return OrderedSet.union(*[x.used_buffer_names() for x in self.snodes]) + + @cache_on_self + def used_or_aliased_buffer_names(self) -> OrderedSet[str]: + return OrderedSet.union( + *[x.used_or_aliased_buffer_names() for x in self.snodes] + ) + + def get_nodes(self) -> Sequence[BaseSchedulerNode]: + return self.snodes + + def __repr__(self) -> str: + return f"{type(self).__name__}(nodes={self.get_name()})" + + @cache_on_self + def is_reduction(self) -> bool: + return any(x.is_reduction() for x in self.snodes) + + @cache_on_self + def is_native_matmul(self) -> bool: + return any(x.is_native_matmul() for x in self.snodes) + + @cache_on_self + def is_split_scan(self) -> bool: + return any(x.is_split_scan() for x in self.snodes) + + @cache_on_self + def is_template(self) -> bool: + return any(x.is_template() for x in self.snodes) + + @cache_on_self + def get_template_node(self) -> Optional[ir.TemplateBuffer]: + for node in self.snodes: + if node.is_template(): + return node.get_template_node() + return None + + def get_device(self) -> torch.device: + return self.group[0] + + @cache_on_self + def has_aliasing_or_mutation(self) -> bool: + return any(x.has_aliasing_or_mutation() for x in self.snodes) + + # None of these need to be implemented, as a FusedSchedulerNode is just an + # abstraction for scheduling purposes + def update_mutated_names(self, renames: dict[str, str]) -> None: + raise NotImplementedError + + def add_fake_dep(self, name: Dep) -> None: + raise NotImplementedError + + def can_inplace(self, read_dep: dependencies.Dep) -> bool: + raise NotImplementedError + + def debug_str(self) -> str: + """Longer form printout for trace logs""" + name = self.get_name() + node_typestr = ",".join(type(n).__name__ for n in self.snodes) + buf = IndentedBuffer() + buf.splice( + f"""\ +{name}: {type(self).__name__}({node_typestr}) +{name}.writes = {pformat(self.read_writes.writes)} +{name}.unmet_dependencies = {pformat(self.unmet_dependencies)} +{name}.met_dependencies = {pformat(self.read_writes.reads - self.unmet_dependencies)} +{name}.outputs = [ + """ + ) + with buf.indent(): + for out in self.get_outputs(): + buf.splice(out.debug_str()) + buf.writeline("]") + + try: + buf.splice(self.debug_str_extra()) + except Exception: + log.warning("Ignoring error in debug_str()", exc_info=True) + + return buf.getrawvalue().rstrip() + + @cache_on_self + def has_side_effects(self) -> bool: + if self.snodes is not None: + return any(node.has_side_effects() for node in self.snodes) + return super().has_side_effects() + + +class FusedMixOrderReductions(FusedSchedulerNode): + def __init__(self, node1: BaseSchedulerNode, node2: BaseSchedulerNode) -> None: + self.node1 = node1 + self.node2 = node2 + super().__init__( + node1.scheduler, list(node1.get_nodes()) + list(node2.get_nodes()) + ) + self.numel = MixOrderReduction.get_numel(self.node1) + + def sub_node_can_fuse( + self, + node1: BaseSchedulerNode, + node2: BaseSchedulerNode, + other_nodes: tuple[BaseSchedulerNode, ...], + ): + """ + node1 is from the current mix order reduction; node2 is another node we want to fuse in. + + other_nodes are passed in to check if fusion will introduce producer/consumer relationship + between the inner and outer reduction. If yes, we don't fuse. + """ + assert not isinstance(node1, FusedMixOrderReductions) + assert not isinstance(node2, FusedMixOrderReductions) + + # When we fuse extra nodes into a FusedMixOrderReductions node, + # we should not allow recursive mix-order reduction being + # created. + if not self.scheduler.can_fuse(node1, node2, allow_mix_order_reduction=False): + return False + + def _get_ancestors(nodes: tuple[BaseSchedulerNode, ...]) -> OrderedSet[str]: + out = OrderedSet() + return out.union(*(n.ancestors for n in nodes)) + + def _get_operation_names( + nodes: tuple[BaseSchedulerNode, ...], + ) -> OrderedSet[str]: + out = OrderedSet() + return out.union(*(n.get_operation_names() for n in nodes)) + + if other_nodes: + if (_get_ancestors((node1, node2)) & _get_operation_names(other_nodes)) or ( + _get_ancestors(other_nodes) & _get_operation_names((node1, node2)) + ): + return False + + return ( + not node2.is_reduction() + or typing.cast( + int, self.scheduler.score_fusion_memory(node1, node2, count_bytes=False) + ) + >= self.numel + ) + + def can_fuse_with(self, other: BaseSchedulerNode): + if not isinstance(other, FusedMixOrderReductions): + return self.sub_node_can_fuse( + self.node1, other, (self.node2,) + ) or self.sub_node_can_fuse(self.node2, other, (self.node1,)) + else: + # pass empty tuple for the second since the producer/consumer relationship has + # already been checked in the first call + return self.sub_node_can_fuse( + self.node1, other.node1, (self.node2, other.node2) + ) and self.sub_node_can_fuse(self.node2, other.node2, tuple()) + + def fuse_with(self, other: BaseSchedulerNode): + device = self.node1.get_device() + backend = self.scheduler.get_backend(device) + + if isinstance(other, FusedMixOrderReductions): + fused_node1 = backend.fuse(self.node1, other.node1) + fused_node2 = backend.fuse(self.node2, other.node2) + return FusedMixOrderReductions(fused_node1, fused_node2) + else: + if self.sub_node_can_fuse(self.node1, other, (self.node2,)): + fused_node = backend.fuse(self.node1, other) + return FusedMixOrderReductions(fused_node, self.node2) + else: + fused_node = backend.fuse(self.node2, other) + return FusedMixOrderReductions(self.node1, fused_node) + + +class ForeachKernelSchedulerNode(FusedSchedulerNode): + """ + This is a schedular node that consists of a set of scheduler nodes that + has no data dependencies among them and can be executed in parallel. + """ + + def get_consumer_subnode_for( + self, producer: BaseSchedulerNode + ) -> Optional[BaseSchedulerNode]: + for buf in producer.get_outputs(): + if buf.get_name() in self.read_to_node: + return self.read_to_node[buf.get_name()] + + return None + + def get_producer_subnode_for( + self, consumer: BaseSchedulerNode + ) -> Optional[BaseSchedulerNode]: + producers = OrderedSet[BaseSchedulerNode]() + for rd in consumer.read_writes.reads: + if rd.name not in self.scheduler.name_to_buf: + continue + + node_name = self.scheduler.name_to_buf[rd.name].defining_op_name() + if node_name in self.name_to_node: + producers.add(self.name_to_node[node_name]) + + # Don't permit fusion if there are multiple subnodes + # that this consumer reads from + if len(producers) == 1: + return next(iter(producers)) + else: + return None + + @classmethod + def can_fuse(cls, producer: BaseSchedulerNode, consumer: BaseSchedulerNode) -> bool: + why = WhyNoFuse(producer, consumer) + if producer.is_foreach() and consumer.is_foreach(): + producer = typing.cast(ForeachKernelSchedulerNode, producer) + consumer = typing.cast(ForeachKernelSchedulerNode, consumer) + foreach_match = len(producer.snodes) == len(consumer.snodes) + if not foreach_match: + why("foreach do not have same length") + return foreach_match and all( + producer.scheduler.can_fuse(l, r) + for l, r in zip(producer.snodes, consumer.snodes) + ) + elif consumer.is_foreach(): + if producer.is_reduction(): + why( + "candidate producer is a reduction, foreach ops cannot be fused with reductions currently" + ) + return False + + consumer = typing.cast(ForeachKernelSchedulerNode, consumer) + consumer_subnode = consumer.get_consumer_subnode_for(producer) + if consumer_subnode is not None: + return consumer.scheduler.can_fuse(producer, consumer_subnode) + + why("candidate producer is not dep of any foreach consumer") + return False + + elif producer.is_foreach(): + if consumer.is_reduction(): + why( + "candidate consumer is a reduction, foreach ops cannot be fused with reductions currently" + ) + return False + + producer = typing.cast(ForeachKernelSchedulerNode, producer) + producer_subnode = producer.get_producer_subnode_for(consumer) + if producer_subnode is not None: + return producer.scheduler.can_fuse(producer_subnode, consumer) + + why("candidate consumer has no dep in any foreach producer") + return False + + raise AssertionError( + "At least one node passed to ForeachKernelSchedulerNode.can_fuse should be a foreach node" + ) + + @classmethod + def fuse( + cls, producer: BaseSchedulerNode, consumer: BaseSchedulerNode + ) -> ForeachKernelSchedulerNode: + assert producer.is_foreach() or consumer.is_foreach() + if producer.is_foreach(): + producer = typing.cast(ForeachKernelSchedulerNode, producer) + use_custom_partition_algo = producer.use_custom_partition_algo + enable_autotune = producer.enable_autotune + else: + consumer = typing.cast(ForeachKernelSchedulerNode, consumer) + use_custom_partition_algo = consumer.use_custom_partition_algo + enable_autotune = consumer.enable_autotune + prev_node_1 = None + prev_node_2 = None + fused_nodes: list[BaseSchedulerNode] + if producer.is_foreach() and consumer.is_foreach(): + producer = typing.cast(ForeachKernelSchedulerNode, producer) + consumer = typing.cast(ForeachKernelSchedulerNode, consumer) + fused_nodes = [ + FusedSchedulerNode.fuse(l, r) + for l, r in zip(producer.snodes, consumer.snodes) + ] + elif producer.is_foreach(): + producer = typing.cast(ForeachKernelSchedulerNode, producer) + producer_subnode = producer.get_producer_subnode_for(consumer) + fused_nodes = [] + prev_node_1 = producer + prev_node_2 = None + for node in producer.snodes: + if node is producer_subnode: + new_node = FusedSchedulerNode.fuse(node, consumer) + prev_node_2 = new_node + fused_nodes.append(new_node) + else: + fused_nodes.append(node) + + elif consumer.is_foreach(): + consumer = typing.cast(ForeachKernelSchedulerNode, consumer) + consumer_subnode = consumer.get_consumer_subnode_for(producer) + fused_nodes = [] + prev_node_1 = consumer + prev_node_2 = None + + for node in consumer.snodes: + if node is consumer_subnode: + new_node = FusedSchedulerNode.fuse(producer, node) + prev_node_2 = new_node + fused_nodes.append(new_node) + else: + fused_nodes.append(node) + else: + raise AssertionError( + "At least one node passed to ForeachKernelSchedulerNode.fuse should be a foreach node" + ) + + return cls( + producer.scheduler, + fused_nodes, + use_custom_partition_algo=use_custom_partition_algo, + prev_node_1=prev_node_1, + prev_node_2=prev_node_2, + enable_autotune=enable_autotune, + ) + + def __init__( + self, + scheduler: Scheduler, + snodes: list[BaseSchedulerNode], + use_custom_partition_algo: bool, + prev_node_1: Optional[BaseSchedulerNode] = None, + prev_node_2: Optional[BaseSchedulerNode] = None, + enable_autotune: bool = False, + ) -> None: + self.read_to_node = {} + self.name_to_node = {} + + if prev_node_1 is None or prev_node_2 is None: + super().__init__(scheduler, snodes) + + for node in snodes: + for read in node.read_writes.reads: + self.read_to_node[read.name] = node + + for name in node.get_operation_names(): + self.name_to_node[name] = node + else: + self.scheduler = scheduler + self.snodes = snodes + self.node = None + self.users: list[NodeUser] = [] + + self.set_read_writes( + dependencies.ReadWrites.merge_list( + [prev_node_1.read_writes, prev_node_2.read_writes] + ) + ) + + self.unmet_dependencies = ( + OrderedSet( + dep + for dep in OrderedSet.union( + prev_node_1.unmet_dependencies, prev_node_2.unmet_dependencies + ) + if dep.name not in self.get_buffer_names() + ) + - self.read_writes.writes + ) + + self.min_order = min([prev_node_1.min_order, prev_node_2.min_order]) + self.max_order = max([prev_node_1.max_order, prev_node_2.max_order]) + + if prev_node_1.is_foreach(): + assert isinstance(prev_node_1, ForeachKernelSchedulerNode) + foreach_node, other_node = prev_node_1, prev_node_2 + else: + assert isinstance(prev_node_2, ForeachKernelSchedulerNode) + foreach_node, other_node = prev_node_2, prev_node_1 + + self.ancestors = foreach_node.ancestors + self.ancestors.update(other_node.ancestors) + + self.name_to_node = foreach_node.name_to_node + for name in other_node.get_operation_names(): + self.name_to_node[name] = other_node + + self.outputs_by_name: dict[str, SchedulerBuffer] = { + k: v for snode in self.snodes for k, v in snode.outputs_by_name.items() + } + + self.use_custom_partition_algo = use_custom_partition_algo + device = snodes[0].get_device() + assert device + self.group = (device, ((sympy.Expr("combo_kernel"),),)) + self.origins = OrderedSet[torch.fx.Node]() + self.enable_autotune = enable_autotune + + @classmethod + def combinable_nodes( + cls, nodes: list[BaseSchedulerNode] + ) -> list[BaseSchedulerNode]: + extern = [x for x in nodes if isinstance(x, ExternKernelSchedulerNode)] + if extern: + log.debug( + "ComboKernels: %d external nodes are filtered %s", + len(extern), + [node.node.get_origins() for node in extern if node.node is not None], + ) + grouped = [x for x in nodes if isinstance(x, GroupedSchedulerNode)] + if grouped: + log.debug( + "ComboKernels: %d grouped nodes are filtered", + len(grouped), + ) + filtered_nodes = [ + x + for x in nodes + if not isinstance( + x, + ( + NopKernelSchedulerNode, + ExternKernelSchedulerNode, + GroupedSchedulerNode, + ), + ) + ] + foreach_nodes = [ + x for x in filtered_nodes if isinstance(x, ForeachKernelSchedulerNode) + ] + if foreach_nodes: + log.debug("ComboKernels: %d foreach nodes are filtered", len(foreach_nodes)) + filtered_nodes = [ + x for x in filtered_nodes if not isinstance(x, ForeachKernelSchedulerNode) + ] + template_nodes = [x for x in filtered_nodes if x.is_template()] + if template_nodes: + log.debug( + "ComboKernels: %d template nodes are filtered: %s", + len(template_nodes), + template_nodes, + ) + filtered_nodes = [x for x in filtered_nodes if x not in template_nodes] + return filtered_nodes + + @staticmethod + def _default_group_nodes_for_combo_kernels( + scheduler: Scheduler, + ) -> list[list[BaseSchedulerNode]]: + """ + Returns a list of lists of nodes that are to be grouped together. + """ + sorted_nodes = scheduler._topological_sort_nodes() + grouped_nodes = [] + max_num_nodes = 8 + for nodes in sorted_nodes: + # Group nodes by device first to avoid mixed-device fusion + device_groups: dict[Optional[torch.device], list[BaseSchedulerNode]] = ( + defaultdict(list) + ) + for node in nodes: + device = node.get_device() + if device and (device.type == "mps" or device.type == "cpu"): + continue + device_groups[device].append(node) + + # Chunk each device group separately + for device_nodes in device_groups.values(): + grouped_nodes.extend( + [ + device_nodes[i : i + max_num_nodes] + for i in range(0, len(device_nodes), max_num_nodes) + ] + ) + + return grouped_nodes + + group_algorithm_for_combo_kernels: Callable[ + [Scheduler], list[list[BaseSchedulerNode]] + ] = _default_group_nodes_for_combo_kernels + + @staticmethod + def set_group_algorithm_for_combo_kernels( + custom_group_algorithm: Callable[[Scheduler], list[list[BaseSchedulerNode]]], + ) -> None: + ForeachKernelSchedulerNode.group_algorithm_for_combo_kernels = ( + custom_group_algorithm + ) + + @staticmethod + def group_nodes_for_combo_kernels( + scheduler: Scheduler, + ) -> list[list[BaseSchedulerNode]]: + return ForeachKernelSchedulerNode.group_algorithm_for_combo_kernels(scheduler) + + def mark_run(self) -> None: + raise NotImplementedError + + def codegen(self) -> None: + raise NotImplementedError + + def is_foreach(self) -> bool: + return True + + def get_subkernel_nodes(self) -> list[BaseSchedulerNode]: + """Returns a list of nodes which comprise the combo kernel. + These nodes may be vertically fused.""" + return list(self.snodes) + + def get_nodes(self) -> Sequence[BaseSchedulerNode]: + """Returns all nodes contained in this kernel, unpacking fused nodes + into their constituent scheduler nodes.""" + return list(itertools.chain.from_iterable(x.get_nodes() for x in self.snodes)) + + def get_first_name(self) -> str: + return self.snodes[0].get_first_name() + + def prune_redundant_deps( + self, name_to_fused_node: dict[str, BaseSchedulerNode] + ) -> None: + _prune_redundant_deps(self, name_to_fused_node, self.scheduler.name_to_buf) + + for node in self.snodes: + node.prune_redundant_deps(name_to_fused_node) + + +class GroupedSchedulerNode(BaseSchedulerNode): + """ + This is a "fake" scheduler node that represents a group of scheduler nodes + that are meant to be *grouped* together (it does not allow another node to be scheduled + in between its constituent nodes, nor does it allow another node to fuse into any of its constituent nodes). + The way it does this is by maintaining its unmet dependencies as the union of its constituent nodes. + Fusion will still happen among the nodes within each GroupedSchedulerNode. + At codegen time, this scheduler node will be unpacked and codegen is called on each constituent node. + """ + + snodes: list[BaseSchedulerNode] + + @classmethod + def create(cls, snodes: list[BaseSchedulerNode]) -> GroupedSchedulerNode: + scheduler = snodes[0].scheduler + assert all(node.scheduler is scheduler for node in snodes) + grouped_snode = cls(scheduler, snodes) + for snode in snodes: + scheduler.name_to_fused_node[snode.get_name()] = grouped_snode + scheduler.name_to_fused_node[grouped_snode.get_name()] = grouped_snode + return grouped_snode + + def __init__( + self, + scheduler: Scheduler, + snodes: list[BaseSchedulerNode], + temp_grouping: bool = False, + ) -> None: + super().__init__(scheduler) + init_group_node(self, scheduler, snodes) + # This flag is introduced for "temporary" grouping during some passes, + # Where nodes are grouped and moved together. + # After the pass those nodes are flattened. + # Reusing calculation of grouped unmed_dependencies etc. + # No fusion logic in this case. + self.temp_grouping = temp_grouping + + def unpack(self) -> list[BaseSchedulerNode]: + """ + Do fusion among nodes within this GroupedSchedulerNode, + and then unpack this GroupedSchedulerNode into regular nodes. + """ + if self.temp_grouping: + return self.snodes + + for snode in self.snodes: + self.scheduler.name_to_fused_node[snode.get_name()] = snode + del self.scheduler.name_to_fused_node[self.get_name()] + return self.scheduler.fuse_nodes(self.snodes) + + def add_fake_dep(self, fake_dep: Dep) -> None: + self.set_read_writes(self.read_writes.with_read(fake_dep)) + self.unmet_dependencies.add(fake_dep) + + @cache_on_self + def get_name(self) -> str: + return "_".join([x.get_name() for x in self.snodes]) + + def get_first_name(self) -> str: + return self.snodes[0].get_name() + + @cache_on_self + def get_buffer_names(self) -> OrderedSet[str]: + return OrderedSet.union(*[x.get_buffer_names() for x in self.snodes]) + + def get_outputs(self) -> list[SchedulerBuffer]: + result: list[SchedulerBuffer] = [] + for node in self.snodes: + result.extend(node.get_outputs()) + return result + + @cache_on_self + def estimate_flops(self) -> int | None: + # don't increment counters in fused methods so we don't double count + fps = list( + filter( + None, + ( + node.estimate_flops() + for node in self.get_nodes() + if node.is_template() or node.is_extern() + ), + ) + ) + if len(fps) == 0: + return None + ret = sum(fps) + return ret + + def get_nodes(self) -> Sequence[BaseSchedulerNode]: + return self.snodes + + def get_device(self) -> Optional[torch.device]: + return self.snodes[0].get_device() if self.snodes else None + + @classmethod + def can_fuse(cls, producer: BaseSchedulerNode, consumer: BaseSchedulerNode) -> bool: + # GroupedSchedulerNode cannot be fused with another node + return False + + +def pick_loop_order( + stride_lengths: list[list[int]], + sizes: Sequence[sympy.Expr], + priority_idx: Sequence[int] = (), +) -> list[int]: + """ + A heuristic to decide loop iteration orders. This has not been well + tuned and may be something we should autotune. + """ + + @functools.cmp_to_key + def index_cmp(a: int, b: int) -> int: + if sizes[a] == 1 or sizes[b] == 1: + # 1-sizes don't matter, just move them to the end + return cmp(sizes[a] == 1, sizes[b] == 1) + + # Take abs, otherwise flipped dimensions are treated as smaller + # strides than contiguous dims + stride_len_a = [abs(sl[a]) for sl in stride_lengths] + stride_len_b = [abs(sl[b]) for sl in stride_lengths] + + # equivalent to + # np.logical_or(stride_lengths[:, b] == 0, stride_lengths[:, a] < stride_lengths[:, b]).all() + a_first = sum( + sl_b == 0 or sl_a < sl_b for sl_a, sl_b in zip(stride_len_a, stride_len_b) + ) + b_first = sum( + sl_a == 0 or sl_b < sl_a for sl_a, sl_b in zip(stride_len_a, stride_len_b) + ) + if a_first > b_first: + return -1 + if b_first > a_first: + return 1 + + # otherwise contiguous + return cmp(b, a) + + order = list(reversed(range(len(stride_lengths[0])))) + if len(priority_idx) > 0: + # if we have priority node, only use that node's order + stride_lengths = [stride_lengths[pi] for pi in priority_idx] + if config.pick_loop_orders: + order.sort(key=index_cmp) + return order + + +def _replace_operation_buffer( + orig_node: ir.MultiTemplateBuffer, new_node: ir.OperationBuffer +) -> None: + replaced_buf_name = new_node.get_name() + orig_buf_name = orig_node.get_name() + assert isinstance(orig_buf_name, str) and isinstance(replaced_buf_name, str) + + replaced_op_name = new_node.get_operation_name() + orig_op_name = orig_node.get_operation_name() + assert isinstance(orig_op_name, str) and isinstance(replaced_op_name, str) + + del V.graph.name_to_buffer[replaced_buf_name] + new_node.name = orig_buf_name + + del V.graph.name_to_op[replaced_op_name] + new_node.operation_name = orig_op_name + + orig = V.graph.buffers.index(orig_node) + V.graph.buffers.remove(new_node) + V.graph.buffers[orig] = new_node + V.graph.name_to_buffer[orig_buf_name] = new_node + + orig = V.graph.operations.index(orig_node) + V.graph.operations.remove(new_node) + V.graph.operations[orig] = new_node + V.graph.name_to_op[orig_op_name] = new_node + + +@dataclasses.dataclass +class NodeUser: + node: Union[BaseSchedulerNode, OutputNode] + can_inplace: bool = False + + # A weak user must be scheduled after a given node, but doesn't actually + # use the result + is_weak: bool = False + + def __hash__(self) -> int: + return hash((self.node.get_name(), self.can_inplace, self.is_weak)) + + def __eq__(self, other: object) -> bool: + return ( + isinstance(other, NodeUser) + and self.get_name() == other.get_name() + and self.can_inplace == other.can_inplace + and self.is_weak == other.is_weak + ) + + def get_name(self) -> str: + return self.node.get_name() + + def merge(self, other: NodeUser) -> NodeUser: + assert self.node is other.node + return NodeUser( + self.node, + self.can_inplace and other.can_inplace, + self.is_weak and other.is_weak, + ) + + +_post_grad_graph_counter = itertools.count() + + +def used_non_deterministic_runtime_estimations() -> bool: + return config.runtime_estimations_mms_benchmark + + +def get_layout_symints(node: ir.IRNode) -> OrderedSet[sympy.Symbol]: + """Get free symbols from a node's layout (size, stride, offset).""" + free_symbol_uses: OrderedSet[sympy.Symbol] = OrderedSet() + layout = node.maybe_get_layout() + if isinstance(layout, ir.Layout): + free_symbol_uses.update( + free_symbols(layout.size) + | free_symbols(layout.stride) + | free_symbols(layout.offset) + ) + if isinstance(layout, ir.MutationLayoutSHOULDREMOVE): + # symint may be used as index in layout.target + free_symbol_uses.update(get_layout_symints(layout.target)) + else: + assert layout is None, f"Expect layout to be None but found layout={layout}" + return free_symbol_uses + + +def get_scheduler_node_symbol_uses( + node: BaseSchedulerNode, +) -> OrderedSet[sympy.Symbol]: + """ + Gets symbols used in a scheduler node, including free symbols from + the node's operations and layout symints from outputs. + """ + if isinstance(node, FusedSchedulerNode): + return OrderedSet().union( + *(get_scheduler_node_symbol_uses(snode) for snode in node.snodes) + ) + assert node.node is not None + free_symbol_uses = node.node.get_free_symbol_uses() + free_symbol_uses.update( + *(get_layout_symints(ir_node) for ir_node in node.node.get_outputs()) + ) + return free_symbol_uses + + +class Scheduler: + """ + A Scheduler is a graph of BaseSchedulerNodes. It is responsible for + optimizations such as fusion, reorder, and graph partition. + """ + + def __init__(self, nodes: list[ir.Operation]) -> None: + with dynamo_timed("Scheduler.__init__"): + self._init(nodes) + + def _init(self, nodes: list[ir.Operation]) -> None: + super().__init__() + V.graph.scheduler = self + self.backends: dict[torch.device, BaseScheduling] = {} + self.post_grad_graph_id = next(_post_grad_graph_counter) + self._graph_partition_counter = itertools.count() + + self.completed_operations: OrderedSet[str] = OrderedSet() + self.available_buffer_names = OrderedSet( + [ + *V.graph.graph_inputs.keys(), + *V.graph.constants.keys(), + *V.graph.torchbind_constants.keys(), + ] + ) + self.nodes = [self.create_scheduler_node(n) for n in nodes] + self.current_node: Optional[BaseSchedulerNode] = None + self.update_zero_dim_cpu_tensor() + # some new constants could have been created above + self.available_buffer_names.update(V.graph.constants.keys()) + for node in self.nodes: + node.prune_deps() + + # See [Note: Graph Partition Device Contexts] + self.default_device_context: Optional[torch.device] = None + + self.name_to_donated_buffer: dict[str, SchedulerDonatedBuffer] = ( + self.get_donated_buffers() + ) + self.name_to_node: dict[str, BaseSchedulerNode] = { + n.get_name(): n for n in self.nodes + } + self.name_to_buf: dict[str, SchedulerBuffer] = { + buf.get_name(): buf for node in self.nodes for buf in node.get_outputs() + } + self.name_to_fused_node: dict[str, BaseSchedulerNode] = self.name_to_node.copy() + + # mutation_real_name: Maps back to the original name for codegen + # Example: + # If you mutate buf0 inside of buf1's kernel, then: + # mutation_real_name = {"buf0" : "buf1"} + # all subsequent uses of buf0 become buf1's usage in dependency graph + self.mutation_real_name: dict[str, str] = {} + + # We handle mutation by renaming modified versions of the same + # buffer in the dependency graph to prevent cycles. + # mutation_renames: tracks the current name for a given buffer + # (changed once per mutation) + # Example: + # If you mutate buf0 inside of buf1's kernel, then: + # mutation_renames = {"buf1" : "buf0"} + # in codegen we only use buf0, never buf1 + self.mutation_renames: dict[str, str] = {} + + # Must run first to correctly set dependencies, before all other passes that rely on + # reading from .read_writes.reads or .unmet_dependencies + self.nodes = comms.decide_global_ordering_of_comms( + self.nodes, + self.name_to_buf, + self.name_to_fused_node, + ) + + self.compute_dependencies() + self.nodes = self.topological_sort_schedule(self.nodes) + self.dead_node_elimination() + self.name_to_fused_node = {n.get_name(): n for n in self.nodes} + self.compute_ancestors() + + # pyrefly: ignore [bad-assignment] + metrics.ir_nodes_pre_fusion += len(self.nodes) + from torch._inductor.debug import log_ir_post_fusion, log_ir_pre_fusion + + log_ir_pre_fusion(self.nodes) + self.num_orig_nodes = len(self.nodes) + self.create_foreach_nodes() + self.nodes = self.topological_sort_schedule(self.nodes) + self.logged_slow_fusion = OrderedSet[tuple[str, str]]() + if config._pre_fusion_custom_pass is not None: + self.nodes = config._pre_fusion_custom_pass(self.nodes) + + if config.distributed_max_autotune_gemm: + from . import distributed_autotune + + distributed_autotune.schedule(self) + self.compute_ancestors() + + self.nodes = self.fuse_nodes(self.nodes) + if config._post_fusion_custom_pass is not None: + self.nodes = config._post_fusion_custom_pass(self.nodes) + + self.merge_loops() + self.finalize_multi_template_buffers() + if config.combo_kernels: + with dynamo_timed( + "Scheduler.create_combo_kernel_nodes", + log_pt2_compile_event=True, + log_waitcounter=True, + ): + self.create_combo_kernel_nodes(num_ck_nodes=None) + + # Peak memory pass and overlap pass must run last, otherwise + # other reordering passes could undo their effects. + if config.reorder_for_peak_memory: + from .memory import reorder_for_peak_memory + + self.nodes = reorder_for_peak_memory( + self.nodes, + self.name_to_buf, + self.name_to_fused_node, + OrderedSet(V.graph.graph_inputs.keys()), + OrderedSet(V.graph.get_output_names()), + ) + + # reorder_for_compute_comm_overlap may do benchmarking to estimate + # op runtime. Disable it for now in deterministic mode. + if not config.deterministic and config.reorder_for_compute_comm_overlap: + if not config.reorder_for_peak_memory: + from .memory import assign_memory_planning_info_for_scheduler_buffers + + assign_memory_planning_info_for_scheduler_buffers( + self.nodes, self.name_to_buf + ) + + if ( + used_non_deterministic_runtime_estimations() + and config_comms.runtime_estimations_align_across_all_distributed_ranks + and ( + config.runtime_estimations_mms_benchmark + or config_comms.runtime_estimations_use_nccl_lib_estimations + ) + ): + has_collectives = False + for node in self.nodes: + if is_collective(node.node): + has_collectives = True + break + if has_collectives: + from .comms import ( + align_runtime_estimations_across_all_distributed_ranks, + ) + + align_runtime_estimations_across_all_distributed_ranks(self.nodes) + + from torch._logging import trace_structured + + trace_structured( + "artifact", + metadata_fn=lambda: { + "name": "scheduler_nodes_before_comm_overlap", + "encoding": "string", + }, + payload_fn=lambda: "\n\n".join( + [ + f"snode[{i}]" + + n.debug_str() + + f" buffer_names:{n.get_buffer_names()}" + for i, n in enumerate(self.nodes) + ] + ), + ) + self.nodes = comms.reorder_compute_and_comm_for_overlap(self.nodes) + self.process_grouped_nodes() + + if ( + # pyrefly: ignore[unbound-name] + config.graph_partition + # pyrefly: ignore[unbound-name] + and config.triton.cudagraphs + # pyrefly: ignore[unbound-name] + and config.triton.reorder_for_reducing_graph_partitions + ): + self.nodes = self.maybe_reorder_for_minimizing_partition(self.nodes) + self.nodes = self.reorder_for_partition_with_simple_dependency(self.nodes) + + self.compute_last_usage() + + if torch._inductor.config.test_configs.track_memory_lifecycle: + self.insert_memory_check_nodes() + + log_ir_post_fusion(self.nodes) + # pyrefly: ignore[unbound-name] + V.debug.graph_diagram(self.nodes) + self.debug_draw_graph() + + # used during codegen: + self.buffer_names_to_free: OrderedSet[str] = OrderedSet() + + # fx graph node to the position it appears in the graph + # for debug attribution + self.origin_to_index: dict[torch.fx.Node, int] = {} + + get_metric_table("graph_stats").add_row( + lambda: { + "graph_id": self.post_grad_graph_id, + "num_nodes_before_fusion": self.num_orig_nodes, + "num_nodes_after_fusion": len(self.nodes), + } + ) + + # Unlike V.graph.removed_buffers, the op recorded here is removed but + # we still need the buffer (generated in alternative ways) + self.removed_ops: OrderedSet[str] = OrderedSet() + + def get_donated_buffers(self) -> dict[str, SchedulerDonatedBuffer]: + name_to_donated_buf = {} + for name in V.graph.graph_inputs_original: + if isinstance(V.graph.graph_inputs_original[name], ir.DonatedBuffer): + name_to_donated_buf[name] = SchedulerDonatedBuffer( + self, + V.graph.graph_inputs_original[name], + defining_op=None, + ) + return name_to_donated_buf + + @property + def current_device(self) -> Optional[torch.device]: + return V.graph.current_device + + @current_device.setter + def current_device(self, device: Optional[torch.device]) -> None: + V.graph.current_device = device + + def debug_draw_graph(self) -> None: + """Generate an image of the graph for debugging""" + if os.environ.get("INDUCTOR_WRITE_SCHEDULER_GRAPH", None) == "1": + from .debug import draw_buffers + + draw_buffers(self.nodes, print_graph=True) + + def debug_print_nodes(self, label: str) -> None: + if log.isEnabledFor(logging.INFO): + log.info("%s:", label) + for node in self.nodes: + node.log_details() + + def create_scheduler_node(self, node: ir.Operation) -> BaseSchedulerNode: + assert node.get_origins() is not None, ( + "All nodes passed to scheduling must have an origin" + ) + if node.is_no_op(): + return NopKernelSchedulerNode(self, node) + elif isinstance(node, (ir.ComputedBuffer, ir.TemplateBuffer)): + return SchedulerNode(self, node) + elif isinstance(node, ir.ExternKernel): + return ExternKernelSchedulerNode(self, node) + else: + raise NotImplementedError(node) + + def create_foreach_nodes(self) -> None: + removed_node_names: OrderedSet[str] = OrderedSet() + fe_nodes = [] + kept_node_names = self.name_to_fused_node.keys() + + for names in V.graph.lists.values(): + names = [ + name + for name in names + if name in kept_node_names + and not isinstance(self.name_to_node[name], NopKernelSchedulerNode) + ] + if not names: + # All nodes eliminated + continue + + removed_node_names.update(names) + snodes = [self.name_to_node[name] for name in names] + + enable_autotune = config.combo_kernels_autotune > 1 + fe_node = ForeachKernelSchedulerNode( + self, + snodes, + use_custom_partition_algo=False, + enable_autotune=enable_autotune, + ) + + fe_nodes.append(fe_node) + + for name in names: + self.name_to_fused_node[name] = fe_node + + self.nodes = [ + node for node in self.nodes if node.get_name() not in removed_node_names + ] + list(fe_nodes) + + def compute_dependencies(self) -> None: + """ + Create dependency edges between nodes, handling aliasing and + mutation properly. + """ + + class DedupList(Generic[_T]): + """ + This data structure behaves like a list except it makes sure the + elements remain unique. + Normally one could use a OrderedSet/dict for this purpose however + the list in question gets elements appended as it is being + iterated over which means that we need to keep the list + semantics. + """ + + def __init__( + self, + items: Optional[list[_T]] = None, + membership: Optional[OrderedSet[_T]] = None, + ) -> None: + self.items = items or [] + self.membership = membership or OrderedSet() + + def append(self, node_user: _T) -> None: + if node_user in self.membership: + return + self.items.append(node_user) + self.membership.add(node_user) + + def __add__(self, other: DedupList[_T]) -> DedupList[_T]: + new_membership = OrderedSet.union(self.membership, other.membership) + new_items = self.items + [ + x for x in other.items if x not in self.membership + ] + return DedupList(new_items, new_membership) + + # pyrefly: ignore [not-a-type] + name_to_users: defaultdict[str, DedupList[NodeUser]] = collections.defaultdict( + DedupList + ) + + # handle aliasing by using python aliasing in name_to_users + # if foo aliases bar then we will make name_to_users["foo"] point + # to the same python list as name_to_users["bar"] + for node in self.nodes: + for buf1 in node.get_outputs(): + buf1_name = buf1.get_name() + # This is for handling auto functionized ops which return None + # and mutate more than 1 inputs, we shouldn't let them all + # point to the same user list since buffers in the aliases + # list might not be alias to each other. + if ( + isinstance(buf1.node.layout, ir.NoneLayout) + and len(buf1.get_aliases()) > 1 + ): + continue + for buf2_name in buf1.get_aliases(): + if buf1_name in name_to_users and buf2_name in name_to_users: + # merge the two + list1 = name_to_users[buf1_name] + list2 = name_to_users[buf2_name] + combined = list1 + list2 + for key in name_to_users: + if ( + name_to_users[key] is list1 + or name_to_users[key] is list2 + ): + name_to_users[key] = combined + elif buf1_name in name_to_users: + name_to_users[buf2_name] = name_to_users[buf1_name] + else: + name_to_users[buf1_name] = name_to_users[buf2_name] + + # pyrefly: ignore [not-a-type] + def rename(n: str) -> str: + if n in self.mutation_renames: + return rename(self.mutation_renames[n]) + return n + + def add_user( + # pyrefly: ignore [not-a-type] + used_by_name: str, + user_node: Union[BaseSchedulerNode, OutputNode], + can_inplace: bool = False, + is_weak: bool = False, + ) -> None: + name_to_users[rename(used_by_name)].append( + NodeUser(user_node, can_inplace, is_weak) + ) + + # pyrefly: ignore [not-a-type] + unbacked_symbol_to_origin_node: dict[sympy.Symbol, Optional[str]] = {} + + # NB: None means that the dependency is on an input. Don't actually + # generate a dependency because if we do, Inductor will start trying + # to free the unbacked int but that's pointless + for val in V.graph.graph_inputs.values(): + if isinstance(val, sympy.Expr): + for fs in val.free_symbols: + unbacked_symbol_to_origin_node[fs] = None + elif isinstance(val, ir.TensorBox): + # We also need to add symbols from input size as well because + # AOTI doesn't lift the unbacked symints to inputs + sym_size = [s for s in val.get_size() if isinstance(s, sympy.Expr)] + for s in sym_size: + for fs in s.free_symbols: + unbacked_symbol_to_origin_node[fs] = None + + has_non_input_unbacked_defs = False + for node in self.nodes: + assert node.node is not None + # unbacked symbols don't follow ordinary buffer dependencies, so + # we track their def/uses separately + unbacked_symbol_defs = sorted( + node.node.get_unbacked_symbol_defs(), key=lambda x: x.name + ) + for s in unbacked_symbol_defs: + assert isinstance(s, sympy.Symbol) + # Pick the first definer as canonical. There may be multiple + # because if a MultiOutputLayout buffer propagates an unbacked + # symint to multiple outputs, they will all claim to def it. + has_non_input_unbacked_defs = True + if s not in unbacked_symbol_to_origin_node: + unbacked_symbol_to_origin_node[s] = node.get_name() + + for node in self.nodes: + log.debug("scheduling %s", node.node) + + if has_non_input_unbacked_defs: + assert node.node is not None + + unbacked_symbol_uses = sorted( + node.node.get_free_symbol_uses(unbacked_only=True), + key=lambda x: x.name, + ) + # if a kernel takes unbacked symints, register dependencies + for s in unbacked_symbol_uses: + assert s in unbacked_symbol_to_origin_node, ( + f"{s} not in {unbacked_symbol_to_origin_node}" + ) + if (r := unbacked_symbol_to_origin_node[s]) is not None: + for buf in self.name_to_node[r].get_outputs(): + node.add_fake_dep(StarDep(buf.get_name())) + + if ( + len(node.read_writes.writes) == 1 + and (dep := next(iter(node.read_writes.writes))) + and isinstance(dep, MemoryDep) + ): + node_mode = dep.mode + else: + node_mode = None + + # Handle output mutations + for buf in node.get_outputs(): + # a node will mutate either 0 or 1 buffers + assert len(buf.get_mutations()) <= 1 + for alt_name in buf.get_mutations(): + alt_name = rename(alt_name) + # this node must run after the prior writer + add_user(alt_name, node) + node.add_fake_dep(StarDep(alt_name, mode=node_mode)) + for user in name_to_users[alt_name].items: + if user.get_name() == node.get_name(): + continue + + assert isinstance(user.node, BaseSchedulerNode) + for other_name in user.node.get_buffer_names(): + # this node must run after all prior readers + other_name = rename(other_name) + node.add_fake_dep( + WeakDep(other_name, mutating_buf=buf.get_name()) + ) + add_user(other_name, node, is_weak=True) + + for add_dep in V.graph.additional_buffer_deps[node.get_name()]: + add_user(add_dep, node, is_weak=True) + # is_fake=True because these are control dependencies for ordering only, + # they should not extend buffer lifetimes + node.add_fake_dep(WeakDep(add_dep, node.get_name(), is_fake=True)) + + for add_dep in V.graph.additional_star_deps[node.get_name()]: + add_user(add_dep, node, is_weak=False) # Strong dependency + node.add_fake_dep(StarDep(add_dep)) + + # add normal non-mutation dependencies + for read in node.read_writes.reads: + if not isinstance(read, WeakDep): + add_user(read.name, node, node.can_inplace(read)) + + node.update_mutated_names(self.mutation_renames) + + # update our renaming scheme for the next iteration + for buf in node.get_outputs(): + for alt_name in buf.get_mutations(): + self.mutation_renames[rename(alt_name)] = buf.get_name() + self.mutation_renames[alt_name] = buf.get_name() + self.mutation_real_name[buf.get_name()] = ( + self.mutation_real_name.get(alt_name, alt_name) + ) + + # make sure outputs aren't dead-code-eliminated + for buf_name in V.graph.get_output_names(): + log.debug("scheduling output %s", buf_name) + add_user(buf_name, OutputNode(StarDep(buf_name))) + + # make sure unbacked symints aren't dead-code-eliminated + if has_non_input_unbacked_defs: + for out in V.graph.graph_outputs: + for s in out.get_free_symbol_uses(unbacked_only=True): + assert s in unbacked_symbol_to_origin_node, ( + f"{s} not in {unbacked_symbol_to_origin_node.keys()}" + ) + if r := unbacked_symbol_to_origin_node[s]: + for buf_name in self.name_to_node[r].get_buffer_names(): + log.debug( + "scheduling output %s for unbacked symint %s", + buf_name, + s, + ) + add_user(buf_name, OutputNode(StarDep(buf_name))) + + # make sure input mutation isn't dead-code-eliminated + for name in self.mutation_renames: + if name in V.graph.graph_inputs: + add_user(name, OutputNode(StarDep(name))) + V.graph.mutated_inputs.add(name) + elif name in V.graph.constants: + # In AOTI, module parameters and buffers are not lifted as graph inputs + add_user(name, OutputNode(StarDep(name))) + + inp_names = { + name: index for index, name in enumerate(V.graph.graph_inputs.keys()) + } + V.graph.mutated_input_idxs = [ + inp_names[name] for name in V.graph.mutated_inputs + ] + + # copy users information onto the nodes + for node in self.nodes: + for buf in node.get_outputs(): + buf.set_users(name_to_users[buf.get_name()].items) + + for name in self.name_to_donated_buffer: + self.name_to_donated_buffer[name].set_users(name_to_users[name].items) + + # For debug logging + logbuf = IndentedBuffer() + logbuf.splice("{") + for key, value in name_to_users.items(): + with logbuf.indent(): + users = [v.get_name() for v in value.items] + logbuf.splice(f"'{key}': {users},") + logbuf.splice("}") + str = logbuf.getrawvalue().rstrip() + compute_dependencies_log.debug("BUFFER USER LIST\n") + compute_dependencies_log.debug("===== AFTER SCHEDULING =====\n%s", str) + + def insert_memory_check_nodes(self) -> None: + from .memory import ( + assign_memory_planning_info_for_scheduler_buffers, + compute_memory_timeline, + FreeableInputBuffer, + get_freeable_input_buf, + ) + + graph_inputs: OrderedSet[str] = OrderedSet(V.graph.graph_inputs.keys()) + name_to_freeable_input_buf: dict[str, FreeableInputBuffer] = ( + get_freeable_input_buf(self.nodes, graph_inputs) + ) + + if not torch._inductor.config.reorder_for_peak_memory: + assign_memory_planning_info_for_scheduler_buffers( + self.nodes, self.name_to_buf + ) + + graph_outputs: OrderedSet[str] = OrderedSet(V.graph.get_output_names()) + buf_info_list, _, _ = compute_memory_timeline( + self.nodes, + name_to_freeable_input_buf, + graph_outputs, + ) + + step_allocs_deallocs: list[tuple[list[str], list[str]]] = [ + ([], []) for _ in range(len(self.nodes)) + ] + for buf_info in buf_info_list: + # Skip zero-size buffers + if buf_info.size_alloc == 0 and buf_info.size_free == 0: + continue + + buf_name = buf_info.buffer.get_name() + + step_allocs_deallocs[buf_info.start_step][0].append(buf_name) + step_allocs_deallocs[buf_info.end_step][1].append(buf_name) + + from torch._inductor.runtime.debug_utils import register_check_mem_op + + register_check_mem_op() + + def construct_mem_check_node( + step_idx: int, is_final_step: bool + ) -> ExternKernelSchedulerNode: + expected_newly_alive = step_allocs_deallocs[step_idx][0] + expected_newly_dead = step_allocs_deallocs[step_idx][1] + + nontensor_args = [expected_newly_alive, expected_newly_dead, is_final_step] + + node = ir.MemoryCheckKernel( + layout=NoneLayout(device=torch.device("cpu")), + kernel=torch.ops._inductor_debug.check_memory_step.default, + tensor_args=[], + nontensor_args=nontensor_args, + unflatten_args=lambda tensor_args, constant_args: ( + tensor_args, + { + "alive": constant_args[0], + "dead": constant_args[1], + "is_final_step": constant_args[2], + }, + ), + ) + node.operation_name = f"mem_check_{self.nodes[step_idx].get_name()}" + return ExternKernelSchedulerNode(self, node) + + new_nodes = [] + + for i, node in enumerate(self.nodes): + new_nodes.append(node) + new_nodes.append( + construct_mem_check_node(i, is_final_step=(i == len(self.nodes) - 1)) + ) + + self.nodes = new_nodes + + def dead_node_elimination(self) -> None: + """ + Remove any nodes without users + """ + if not config.use_dce: + return + + # self.nodes is in topological order, so by iterating in reverse order + # we have visited (and potentially removed) all users before visiting a + # given node. + updated_nodes = [] + for node in reversed(self.nodes): + + def can_eliminate_user(user: NodeUser) -> bool: + return user.is_weak or user.get_name() in V.graph.removed_operations + + active_buffers = False + for buf in node.get_outputs(): + can_eliminate = all(can_eliminate_user(u) for u in buf.users) + if can_eliminate: + log.debug("removed dead buffer: %s", buf.get_name()) + V.graph.removed_buffers.add(buf.get_name()) + else: + active_buffers = True + + can_eliminate = not node.has_side_effects() and not active_buffers + + if not can_eliminate: + updated_nodes.append(node) + else: + # dead code + log.debug("removed dead operation: %s", node.get_name()) + V.graph.removed_operations.add(node.get_name()) + for read in node.read_writes.reads: + if read.name in self.name_to_buf: + users = self.name_to_buf[read.name].users + self.name_to_buf[read.name].users = [ + u for u in users if u.node.get_name() != node.get_name() + ] + self.nodes = list(reversed(updated_nodes)) + + # Prune any WeakDeps no longer needed + for node in self.nodes: + node.prune_weak_deps() + + def topological_sort_schedule( + self, nodes: list[BaseSchedulerNode] + ) -> list[BaseSchedulerNode]: + """ + Ensure nodes is in topologically sorted order + """ + seen = OrderedSet[BaseSchedulerNode]() + name_to_node: dict[str, BaseSchedulerNode] = dict() + result: list[BaseSchedulerNode] = [] + + def visit(n: BaseSchedulerNode) -> None: + if n not in seen: + seen.add(n) + for dep in sorted(n.unmet_dependencies, key=lambda d: d.name): + # We only care about doing toposort within `nodes` + if dep.name not in name_to_node: + continue + visit(name_to_node[dep.name]) + result.append(n) + + for node in nodes: + for name in node.get_buffer_names(): + name_to_node[name] = node + for node in nodes: + visit(node) + return result + + def _get_unmet_dep_nodes(self, snode: BaseSchedulerNode) -> list[BaseSchedulerNode]: + unmet_deps: OrderedSet[str] = OrderedSet() + if isinstance( + snode, + ( + SchedulerNode, + ExternKernelSchedulerNode, + NopKernelSchedulerNode, + FusedSchedulerNode, + GroupedSchedulerNode, + ), + ): + for dep in snode.unmet_dependencies: + unmet_deps.add(dep.name) + else: + raise RuntimeError( + f"get_unmet_dep_nodes is not implemented for {type(snode)}." + ) + unmet_dep_ops = (self.name_to_buf[dep].defining_op_name() for dep in unmet_deps) + return list(OrderedSet(self.name_to_fused_node[n] for n in unmet_dep_ops)) + + def _topological_sort_nodes(self) -> list[list[BaseSchedulerNode]]: + """ + Sort nodes by their topological order, return a list of node lists. + """ + order = [] + nodes = dict.fromkeys(self.nodes, 0) + children: dict[Any, Any] = {} + for node in self.nodes: + deps = self._get_unmet_dep_nodes(node) + nodes[node] = len(deps) + for dep in deps: + c = children.get(dep, []) + c.append(node) + children[dep] = c + + zero_deg_nodes = [n for n, v in nodes.items() if v == 0] + while zero_deg_nodes: + order.append(zero_deg_nodes) + for n in zero_deg_nodes: + for user in children.get(n, []): + nodes[user] -= 1 + nodes.pop(n) + zero_deg_nodes = [n for n, v in nodes.items() if v == 0] + assert not nodes, "Topological sort failed!" + return order + + def compute_ancestors(self) -> None: + """ + Populate each node.ancestors + """ + # note self.nodes is topologically sorted + name_to_ancestors: dict[str, OrderedSet[str]] = {} + for node in self.nodes: + ancestors: OrderedSet[str] = OrderedSet() + for dep in node.unmet_dependencies: + dep_node_name = self.name_to_buf[dep.name].defining_op_name() + ancestors.add(dep_node_name) + ancestors |= name_to_ancestors[dep_node_name] + name_to_ancestors[node.get_name()] = ancestors + node.ancestors = ancestors + + for order, node in enumerate(self.nodes): + node.min_order = order + node.max_order = order + + def merge_loops(self) -> None: + if not config.loop_ordering_after_fusion: + return + + for node in self.nodes: + # Even for CPU, if we are using the halide backend, we still need + # the merge loops steps below + if not isinstance(node, (SchedulerNode, FusedSchedulerNode)) or ( + not node.is_gpu() and config.cpu_backend != "halide" + ): + continue + for snode in node.get_nodes(): + # merge loops for the scheduler node + if not isinstance(snode, SchedulerNode) or snode.is_template(): + continue + + snode.merge_loops() + + # Note that for CPU backend, merging loops will change + # snode.group. It's fine for Triton backend. + # But if we simplify update snode.group like this: + # group_fn = self.get_backend(snode.node.get_device()).group_fn + # snode.group = (snode.node.get_device(), group_fn(snode._sizes)) + # There is still an issue due to different snode in a + # FusedSchedulerNode having different merged loops. + # Skip CPU backend for now. + + def fuse_nodes(self, nodes: list[BaseSchedulerNode]) -> list[BaseSchedulerNode]: + """ + Combine eligible nodes into FusedSchedulerNodes. + """ + with dynamo_timed( + "Scheduler.fused_nodes", log_pt2_compile_event=True, log_waitcounter=True + ): + for i in range(10): + old_len = len(nodes) + fusion_log.debug( + "===== attempting fusion (%d/10): %d nodes =====", + i + 1, + old_len, + ) + nodes = self.fuse_nodes_once(nodes, is_reorder_round=False) + new_len = len(nodes) + fusion_log.debug( + "completed fusion round (%d/10): fused %d nodes into %d nodes\n", + i + 1, + old_len, + new_len, + ) + if new_len == old_len or new_len == 1: + fusion_log.debug( + "===== fusion complete (%d iterations) =====", i + 1 + ) + break + + if ( + config.loop_ordering_after_fusion + or config.loop_index_inversion_in_fusion + ): + nodes = self.fuse_nodes_once(nodes, is_reorder_round=True) + return nodes + + def process_grouped_nodes(self) -> None: + """ + Unpack GroupedSchedulerNode into regular nodes. + """ + new_nodes: list[BaseSchedulerNode] = [] + for node in self.nodes: + new_nodes.extend( + node.unpack() if isinstance(node, GroupedSchedulerNode) else [node] + ) + self.nodes = new_nodes + + def benchmark_fused_nodes( + self, nodes: Sequence[BaseSchedulerNode] + ) -> tuple[float, str]: + """ + Benchmark fused list of nodes and return the execution time + in milliseconds on randomly generated inputs. + """ + assert len(nodes) > 0 + device = nodes[0].get_device() + self.current_device = device + backend = self.get_backend(device) + with dynamo_timed( + "benchmark_fused_nodes", + log_pt2_compile_event=True, + dynamo_compile_column_us="compile_time_autotune_time_us", + ): + return backend.benchmark_fused_nodes(nodes) + + def generate_kernel_code_from_nodes( + self, + nodes: Sequence[BaseSchedulerNode], + benchmark_kernel: bool, + hint_override: Optional[int] = None, + ) -> str: + """ + Benchmark fused list of nodes and return the execution time + in milliseconds on randomly generated inputs. + """ + assert len(nodes) > 0 + device = nodes[0].get_device() + self.current_device = device + backend = self.get_backend(device) + with dynamo_timed("benchmark_fused_nodes"): + return backend.generate_kernel_code_from_nodes( + nodes, benchmark_kernel, hint_override=hint_override + ) + + def benchmark_codegened_module( + self, module: ModuleType, device: torch.device + ) -> tuple[float, str]: + """ + Benchmark fused list of nodes and return the execution time + in milliseconds on randomly generated inputs. + """ + self.current_device = device + backend = self.get_backend(device) + with dynamo_timed("benchmark_fused_nodes"): + return backend.benchmark_codegened_module(module) + + def finalize_multi_template_buffers(self) -> None: + """ + Finalize a backing choice for MultiTemplateBuffers which did not already have a + choice finalized through fusion. In the case of an extern choice, this will result + in replacing the SchedulerNode. + + If a MultiTemplateBuffer did not have any fusion opportunities, finalizing a choice + will force completion of compilation and benchmarking. + """ + + for i, node in enumerate(self.nodes): + if isinstance(node, SchedulerNode) and isinstance( + node.node, ir.MultiTemplateBuffer + ): + multi_node = node.node + if not config.test_configs.force_extern_kernel_in_multi_template: + min_node_unfused, _ = multi_node.get_min_choice() + else: + min_node_unfused = next( + ( + timing + for timing in multi_node.choice_timings() + if isinstance( + timing, + torch._inductor.select_algorithm.ExternKernelCaller, + ) + ), + ) + + if isinstance( + min_node_unfused, + torch._inductor.ir.TritonTemplateCallerBase, + ): + if config.multi_kernel_hints: + callers: dict[Optional[int], TritonTemplateCallerBase] = {} + callers[None] = min_node_unfused + + for hint in config.multi_kernel_hints: + timings = multi_node.choice_timings(hint_override=hint) + triton_timings = { + k: v + for k, v in timings.items() + if isinstance(k, TritonTemplateCallerBase) + } + choice = min(triton_timings.items(), key=lambda x: x[1])[0] + callers[hint] = choice + + node.node.finalize_as_triton_callers(callers) + else: + node.node.finalize_as_triton_caller(min_node_unfused) + continue + + with ir.IRNode.current_origins(multi_node.origins): + out_tensorbox = min_node_unfused.output_node() + out_storage = out_tensorbox.data # type: ignore[union-attr] + assert isinstance(out_storage, ir.StorageBox) + out_buffer = out_storage.data + assert isinstance(out_buffer, ir.OperationBuffer) + + if multi_node.origin_node: + assign_origin_node(out_tensorbox, multi_node.origin_node) + + out_buffer.layout = multi_node.layout + self._replace_node(out_buffer, multi_node, i, node) + + def _replace_node( + self, + out_buffer: ir.OperationBuffer, + multi_node: ir.MultiTemplateBuffer, + i: int, + node: SchedulerNode, + ) -> None: + _replace_operation_buffer(multi_node, out_buffer) + new_scheduler_node = self.create_scheduler_node(out_buffer) + + self.nodes[i] = new_scheduler_node + self.name_to_node[node.get_name()] = new_scheduler_node + self.name_to_fused_node[node.get_name()] = new_scheduler_node + + # We need to reflect the mutation renames that were recorded in the original node + mutation_renames = {} + for dep in itertools.chain(node.read_writes.reads, node.unmet_dependencies): + if real_name := self.mutation_real_name.get(dep.name, None): + mutation_renames[real_name] = dep.name + + def rename_deps(deps: OrderedSet[Dep]) -> OrderedSet[Dep]: + return OrderedSet(dep.rename(mutation_renames) for dep in deps) + + new_scheduler_node.unmet_dependencies = rename_deps( + new_scheduler_node.unmet_dependencies + ) + new_scheduler_node.read_writes.reads = rename_deps( + new_scheduler_node.read_writes.reads + ) + + for new_out, old_out in zip( + new_scheduler_node.get_outputs(), node.get_outputs() + ): + self.name_to_buf[old_out.get_name()] = new_out + new_out.users = old_out.users + + new_scheduler_node.min_order = node.min_order + new_scheduler_node.max_order = node.max_order + new_scheduler_node.ancestors = node.ancestors + new_scheduler_node.last_usage = node.last_usage + + def _any_atomic_add(self, node_list: Sequence[BaseSchedulerNode]) -> bool: + return any( + hasattr(n.node, "data") + and n.node is not None + and hasattr(n.node.data, "scatter_mode") + and n.node.data.scatter_mode == "atomic_add" + for n in node_list + ) + + def speedup_by_fusion( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> Union[bool, Callable[[], bool]]: + """ + If config.benchmark_fusion is False, always return True. + Otherwise, return True if fusion can brings speedup. + """ + + is_multi_template = any( + n.is_template() + and isinstance(n.get_template_node(), ir.MultiTemplateBuffer) + for n in (node1, node2) + ) + if not config.benchmark_fusion and not is_multi_template: + return True + + if ( + node1.is_template() + and not isinstance(node1.get_template_node(), ir.TritonTemplateBuffer) + or node1.is_foreach() + or node2.is_foreach() + ): + # TODO support benchmarking epilogue fusion + return True + + node_list_1 = node1.get_nodes() + device = node_list_1[0].get_device() + assert device + + # don't support benchmark fusion for CPU C++ backend right now. + if device.type == "cpu" and config.cpu_backend != "triton": + return True + + node_list_2 = node2.get_nodes() + node_list_fused = list(itertools.chain(node_list_1, node_list_2)) + + # We can not accurately benchmark kernel using atomic_add + # due to how we generate random integer inputs. + # Skip benchmarking them by allowing fusion. + if self._any_atomic_add(node_list_fused): + return True + + from triton.compiler.errors import CompilationError + + why = WhyNoFuse(node1, node2) + + device = node_list_fused[0].get_device() + assert device is not None + + def log_fusion(ms_fused: float, ms1: float, ms2: float) -> None: + if fusion_log.isEnabledFor(logging.DEBUG): + if ms_fused < ms1 + ms2: + fusion_log.debug( + "can fuse (benchmark): fusing %s with %s cause %sx speedup", + node1.get_buffer_names(), + node2.get_buffer_names(), + green_text(f"{(ms1 + ms2) / ms_fused:.3f}"), + ) + else: + fusion_log.debug( + "cannot fuse (benchmark): fusing %s with %s cause %sx slowdown", + node1.get_buffer_names(), + node2.get_buffer_names(), + red_text(f"{ms_fused / (ms1 + ms2):.3f}"), + ) + + async_compile = torch._inductor.async_compile.AsyncCompile() + + def compile_kernel( + nodes: Sequence[BaseSchedulerNode], hint_override: Optional[int] = None + ) -> tuple[Optional[LambdaFuture], ModuleType]: + src_code = self.generate_kernel_code_from_nodes( + nodes, benchmark_kernel=True, hint_override=hint_override + ) + mod = PyCodeCache.load(src_code) + if not async_compile.use_process_pool(): + fut = None + else: + fut = async_compile.triton(kernel_name="triton_", source_code=src_code) + assert isinstance(fut, LambdaFuture) + + return (fut, mod) + + if is_multi_template and any( + n.get_template_node() is not None for n in (node1, node2) + ): + epilogue_fusion = node1.get_template_node() is not None + multi_node = ( + node1.get_template_node() + if epilogue_fusion + else node2.get_template_node() + ) + assert isinstance(multi_node, ir.MultiTemplateBuffer) + + hint_override_best_fusion_choice: dict[ + Optional[int], TritonTemplateCallerBase + ] = {} + future_choices: list[tuple[Any, Optional[LambdaFuture], ModuleType]] = [] + for hint_override in config.multi_kernel_hints: + choice_timings = multi_node.choice_timings(hint_override) + for choice, _ in sorted(choice_timings.items(), key=lambda x: x[1]): + if not isinstance( + choice, torch._inductor.select_algorithm.TritonTemplateCaller + ): + continue + with multi_node.swap_as_triton_caller(choice): + future_choices.append( + ( + choice, + *compile_kernel( + node_list_fused, hint_override=choice.hint_override + ), + ) + ) + + min_ms_fused = float("inf") + ms_fused_choice: Optional[TritonTemplateCallerBase] = None + new_timings = {} + for choice, future, mod_fused in future_choices: + try: + if future is not None: + future.result() + except Exception as e: + if fusion_log.isEnabledFor(logging.DEBUG): + fusion_log.debug( # noqa: G200 + "Exception in compiling %s: %s", + "prologue" if not epilogue_fusion else "epilogue", + str(e), + ) + continue + with multi_node.swap_as_triton_caller(choice): + ms_fused, path = self.benchmark_codegened_module( + mod_fused, device + ) + new_timings[choice] = ms_fused + if ms_fused < min_ms_fused: + min_ms_fused = ms_fused + ms_fused_choice = choice + multi_node._choice_timings[hint_override] = new_timings + assert isinstance(ms_fused_choice, TritonTemplateCallerBase) + hint_override_best_fusion_choice[hint_override] = ms_fused_choice + + # Eagerly compile and benchmark non-template nodes + choice_timings = multi_node.choice_timings() + _, ms1 = multi_node.get_min_choice() + ms2, path2 = ( + self.benchmark_fused_nodes(node_list_2) + if epilogue_fusion + else self.benchmark_fused_nodes(node_list_1) + ) + + # Start compiling choices in parallel + future_choices: list[tuple[Any, Optional[LambdaFuture], ModuleType]] = [] + triton_choices = 0 + for choice, unfused_time in sorted( + choice_timings.items(), key=operator.itemgetter(1) + ): + if not isinstance(choice, torch._inductor.ir.TritonTemplateCallerBase): + continue + + # For prologue fusion we check if the underlying template of the choice + # supports all allowed prologue inputs. If not, we skip this choice in + # the fusion benchmark. + # TODO: Remove this check after all Triton templates support prologue fusion. + # Currently, persistent+TMA Triton template does not due to the TMA-based loads. + if ( + not epilogue_fusion + and hasattr(choice, "allowed_prologue_inps") + and choice.allowed_prologue_inps != multi_node.allowed_prologue_inps + ): + continue + + if unfused_time >= ms1 + ms2: + break + + triton_choices += 1 + if triton_choices > config.max_epilogue_benchmarked_choices: + break + + with multi_node.swap_as_triton_caller(choice): + future_choices.append((choice, *compile_kernel(node_list_fused))) + + if len(future_choices) == 0: + return False + + def benchmark_when_ready() -> bool: + min_ms_fused = float("inf") + ms_fused_choice = None + + new_timings = {} + # Benchmark each choice after compilation completes + for choice, future, mod_fused in future_choices: + try: + if future is not None: + future.result() + + # Ideally we would more narrowly catch Exceptions here but + # triton will unpredictably error with valid prologue fusions + except Exception as e: + if fusion_log.isEnabledFor(logging.DEBUG): + fusion_log.debug( # noqa: G200 + "Exception in compiling %s: %s", + "prologue" if not epilogue_fusion else "epilogue", + str(e), + ) + continue + # pyrefly: ignore [missing-attribute] + with multi_node.swap_as_triton_caller(choice): + ms_fused, path = self.benchmark_codegened_module( + mod_fused, + # pyrefly: ignore [bad-argument-type] + device, + ) + new_timings[choice] = ms_fused + if ms_fused < min_ms_fused: + min_ms_fused = ms_fused + ms_fused_choice = choice + + log_fusion(min_ms_fused, ms1, ms2) + + if min_ms_fused < (ms1 + ms2) and ms_fused_choice is not None: + if config.multi_kernel_hints: + hint_override_best_fusion_choice[None] = ms_fused_choice + # pyrefly: ignore [missing-attribute] + multi_node.finalize_as_triton_callers( + hint_override_best_fusion_choice + ) + else: + # pyrefly: ignore [missing-attribute] + multi_node.finalize_as_triton_caller(ms_fused_choice) + + # pyrefly: ignore [missing-attribute] + multi_node._choice_timings[None] = new_timings + return True + else: + return False + + return benchmark_when_ready + + else: + # Start parallel compilation for all three kernels + future_and_mod_l1 = compile_kernel(node_list_1) + future_and_mod_l2 = compile_kernel(node_list_2) + future_and_mod_l1_fused = compile_kernel(node_list_fused) + + def benchmark_when_ready() -> bool: + from torch._inductor.runtime.triton_heuristics import ( + NoTritonConfigsError, + ) + + try: + # Wait for all compilations to complete + for fut in ( + future_and_mod_l1[0], + future_and_mod_l2[0], + future_and_mod_l1_fused[0], + ): + if fut is not None: + fut.result() + + ms1, path1 = self.benchmark_codegened_module( + future_and_mod_l1[1], + # pyrefly: ignore [bad-argument-type] + device, + ) + if math.isinf(ms1): + why("register spilling of the first kernel") + return False + + ms2, path2 = self.benchmark_codegened_module( + future_and_mod_l2[1], + # pyrefly: ignore [bad-argument-type] + device, + ) + if math.isinf(ms2): + why("register spilling of the second kernel") + return False + + ms_fused, path_fused = self.benchmark_codegened_module( + future_and_mod_l1_fused[1], + # pyrefly: ignore [bad-argument-type] + device, + ) + if math.isinf(ms_fused): + why("register spilling of the fused kernel") + return False + + log_fusion(ms_fused, ms1, ms2) + + if ( + is_metric_table_enabled("slow_fusion") + and ms_fused >= ms1 + ms2 + and (path1, path2) not in self.logged_slow_fusion + ): + self.logged_slow_fusion.add((path1, path2)) + get_metric_table("slow_fusion").add_row( + lambda: { + "kernel1_path": path1, + "kernel1_latency": ms1, + "kernel2_path": path2, + "kernel2_latency": ms2, + "fused_kernel_path": path_fused, + "fused_kernel_latency": ms_fused, + "slow_down_ratio": ms_fused / (ms1 + ms2), + } + ) + + return ms_fused < ms1 + ms2 + + except NoTritonConfigsError: + return False + + except CompilationError as e: + if "Loop-carried variable" in str(e): + return True + raise + + return benchmark_when_ready + + def get_fused_node(self, node: BaseSchedulerNode) -> BaseSchedulerNode: + "Look up the node in Scheduler name_to_fused_node" + return self.name_to_fused_node[node.get_first_name()] + + def fuse_nodes_once( + self, + nodes: list[BaseSchedulerNode], + is_reorder_round: bool, + ) -> list[BaseSchedulerNode]: + """ + Combine eligible nodes into FusedSchedulerNodes. + + This relies on two key functions to control the logic: + - self.can_fuse(): checks if a fusion is legal + - self.score_fusion(): assigns priority to a given fusion + """ + self.prune_redundant_deps(nodes) + fused_nodes = OrderedSet(nodes) + if fusion_log.isEnabledFor(logging.DEBUG): + fusion_log.debug("fuse_nodes_once, candidates:") + for node in fused_nodes: + fusion_log.debug(" %s", node.debug_str_short()) + + # These are potential fusions which we are async compiling, + # and which we will benchmark profitability of. + pending_fusions: dict[ + BaseSchedulerNode, + tuple[Callable[[], bool], BaseSchedulerNode, BaseSchedulerNode], + ] = {} + + def fuse_two_nodes( + node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> BaseSchedulerNode: + fusion_log.debug("fusing %s with %s", node1.get_name(), node2.get_name()) + + device = node1.get_device() + assert node2.get_device() == device + node3 = self.get_backend(device).fuse(node1, node2) + fused_nodes.remove(node1) + fused_nodes.remove(node2) + fused_nodes.add(node3) + self.name_to_fused_node.update( + {n.get_name(): node3 for n in node3.get_nodes()} + ) + return node3 + + def resolve_pending_fusions( + node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> None: + while ( + self.get_fused_node(node1) in pending_fusions + or self.get_fused_node(node2) in pending_fusions + ): + pending_fusion = pending_fusions.get( + self.get_fused_node(node1), + pending_fusions.get(self.get_fused_node(node2), None), + ) + assert pending_fusion is not None + + is_speedup, node_key1, node_key2 = pending_fusion + pending_fusions.pop(node_key1, None) + pending_fusions.pop(node_key2, None) + + assert self.get_fused_node(node_key1) is node_key1 + assert self.get_fused_node(node_key2) is node_key2 + + if not is_speedup() or self.will_fusion_create_cycle(node1, node2): + continue + + fuse_two_nodes(node_key1, node_key2) + + for node1, node2 in self.get_possible_fusions(nodes, is_reorder_round): + # if either node is in a pending fusion, resolve it. + # since we iterate on potential fusions based on profitability + # the first potential fusion should take precedence. + resolve_pending_fusions(node1, node2) + node1 = self.get_fused_node(node1) + node2 = self.get_fused_node(node2) + + if self.can_fuse( + node1, node2, is_reorder_round + ) and not self.will_fusion_create_cycle(node1, node2): + speedup = self.speedup_by_fusion(node1, node2) + if callable(speedup): + pending_fusions[node1] = (speedup, node1, node2) + pending_fusions[node2] = (speedup, node1, node2) + continue + + if not speedup: + continue + + fuse_two_nodes(node1, node2) + + seen_pair_speedup_fn: OrderedSet[Callable[[], bool]] = OrderedSet() + for is_speedup_fn, node_key1, node_key2 in pending_fusions.values(): + if is_speedup_fn in seen_pair_speedup_fn: + continue + + seen_pair_speedup_fn.add(is_speedup_fn) + + assert self.get_fused_node(node_key1) is node_key1 + assert self.get_fused_node(node_key2) is node_key2 + + if is_speedup_fn() and not self.will_fusion_create_cycle( + node_key1, node_key2 + ): + fuse_two_nodes(node_key1, node_key2) + + nodes = sorted(fused_nodes, key=lambda x: x.min_order) + nodes = self.topological_sort_schedule(nodes) + return nodes + + def create_combo_kernel_nodes(self, num_ck_nodes: Optional[int] = None) -> None: + """ + Groups parallel nodes + """ + fused_nodes = OrderedSet(self.nodes) + count = 0 + num_nodes_orig = len(self.nodes) + log.debug("ComboKernels: Generating with num_ck_nodes = %s...", num_ck_nodes) + for num, node_list in enumerate( + ForeachKernelSchedulerNode.group_nodes_for_combo_kernels(self) + ): + node_list = ForeachKernelSchedulerNode.combinable_nodes(node_list) + if len(node_list) < 2: + continue + if num_ck_nodes is not None and count > num_ck_nodes: + break + if not self.speedup_by_combo_kernel(node_list): + log.debug("ComboKernels: Not speeding up %d-th group", num) + continue + count += 1 + enable_autotune = config.combo_kernels_autotune > 0 + group_snode = ForeachKernelSchedulerNode( + node_list[0].scheduler, + node_list, + use_custom_partition_algo=True, + enable_autotune=enable_autotune, + ) + log.info( + "ComboKernels: Combining %d nodes for %d-th group", + len(node_list), + num, + ) + for node in node_list: + fused_nodes.remove(node) + fused_nodes.add(group_snode) + self.name_to_fused_node.update( + {n.get_name(): group_snode for n in group_snode.get_nodes()} + ) + self.nodes = sorted(fused_nodes, key=lambda x: x.min_order) + self.nodes = self.topological_sort_schedule(self.nodes) + log.info( + "Generated ComboKernel nodes: %d ComboKernels, totally %d -> %d nodes", + count, + num_nodes_orig, + len(self.nodes), + ) + self.prune_redundant_deps(self.nodes) + + def prune_redundant_deps(self, nodes: list[BaseSchedulerNode]) -> None: + for node in nodes: + node.prune_redundant_deps(self.name_to_fused_node) + + def get_possible_fusions( + self, + nodes: list[BaseSchedulerNode], + is_reorder_round: bool, + ) -> list[tuple[BaseSchedulerNode, BaseSchedulerNode]]: + """ + Helper to find all legal fusion opportunities, sorted by self.score_fusion() + """ + possible_fusions = [] + seen = OrderedSet[tuple[BaseSchedulerNode, BaseSchedulerNode]]() + + def check_all_pairs(nodes: list[BaseSchedulerNode]) -> None: + for node1_index, node1 in enumerate(nodes): + for node2 in nodes[ + node1_index + 1 : node1_index + + 1 + + config.max_fusion_buffer_group_pairwise_attempts + ]: + key = (node1, node2) + if key in seen: + continue + seen.add(key) + + if self.can_fuse(node1, node2, is_reorder_round): + possible_fusions.append(key) + elif (node2.is_template() or node2.is_foreach()) and self.can_fuse( + node2, node1, is_reorder_round + ): + # foreach fusions and epilogue fusions are order dependent + possible_fusions.append((node2, node1)) + + buffer_names_grouping = collections.defaultdict(list) + for node in nodes: + if self.unfusable_node(node): + continue + for buf in node.used_buffer_names(): + buffer_names_grouping[buf].append(node) + for node_grouping in buffer_names_grouping.values(): + check_all_pairs(node_grouping) + + if config.aggressive_fusion: + group_grouping = collections.defaultdict(list) + for node in nodes: + group = getattr(node, "group", None) + if group: + group_grouping[group].append(node) + for node_grouping in group_grouping.values(): + check_all_pairs(node_grouping) + + possible_fusions = self.get_possible_fusions_with_highest_priority( + possible_fusions + ) + possible_fusions.sort(key=self.score_fusion_key, reverse=True) + fusion_log.debug("found %d possible fusions", len(possible_fusions)) + return possible_fusions + + def will_fusion_create_cycle( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + """ + Finds whether there's a path from node1 to node2 (or vice-versa) + caused indirectly by other fusions. + """ + # since we are just returning boolean here, use slightly faster, unordered set + visited = OrderedSet[FusedSchedulerNode]() + + def found_path(node: BaseSchedulerNode) -> bool: + # only fused nodes can introduce new ancestors. + if isinstance(node, FusedSchedulerNode) and node not in visited: + visited.add(node) + if node.get_operation_names().issubset(combined_ancestors): + # All fusion outputs are in ancestors of node1 and node2, thus + # cannot introduce new path: + # + # 1. if output is neither descendent of node1 or node2, the + # output cannot introduce a path + # 2. due to [can_fuse]: if WLOG output is descendent of node1, it cannot be + # on path(node1->node2), hence it cannot be ancestor of node2 + # 3. due to [acyclic]: if WLOG output is descendent of node1, it cannot be + # ancestor of node1 + return False + else: + # continue DFS of new ancestors introduced by the fusion + return bool(combined_names & node.ancestors) or any( + found_path(self.name_to_fused_node[n]) + for n in node.ancestors - combined_ancestors + ) + return False + + # as above - use slightly faster, unordered set + combined_names = ( + node1.get_operation_names()._dict.keys() + | node2.get_operation_names()._dict.keys() + ) + combined_ancestors = ( + node1.ancestors._dict.keys() | node2.ancestors._dict.keys() + ) - combined_names + cycle = any(found_path(self.name_to_fused_node[n]) for n in combined_ancestors) + if cycle: + WhyNoFuse(node1, node2)("will create cycle") + return cycle + + def can_fusion_increase_peak_memory( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + """ + Return true if fusing the two nodes can potentially increasing peak memory. + + The implementation is more like a heuristic since we don't really know if we are at peak + or not when trying to fuse these two nodes. The order of nodes may change later which makes the + peak memory estimation hard. + + Here is how we decide the LOWER BOUND of extra memory allocation if we fuse these 2 nodes: + 1. find all buffers read by each node with a single user. These buffers are supposed to + be reused if we don't fuses these 2 nodes + 2. find the intersection of these buffers for the two node and sum the total buffer size. + If we don't fuse these two nodes, we can at lease avoid this much memory allocation. + Note that the extra memory allocation is not necessarily causing peak memory increase. + This is just a heuristic. + + We return true only if the saving for fusion can not trade off the extra memory allocation. + """ + + from .codegen.wrapper import buffer_reuse_key + + def _find_single_user_inputs( + node: BaseSchedulerNode, + ) -> list[ir.Buffer]: + output = [] + for rd in node.read_writes.reads: + buf = self.name_to_buf.get(rd.name) + if buf and len(buf.users) == 1 and buf.node.has_tensor_output(): + output.append(buf.node) + return output + + # Check inputs that can be potentially reused + lhs_dep_nodes = _find_single_user_inputs(node1) + rhs_dep_nodes = _find_single_user_inputs(node2) + + lhs_reuse_keys = OrderedSet(buffer_reuse_key(buf) for buf in lhs_dep_nodes) + rhs_reuse_keys = OrderedSet(buffer_reuse_key(buf) for buf in rhs_dep_nodes) + + common_reuse_keys = lhs_reuse_keys.intersection(rhs_reuse_keys) + + memory_overhead = 0 + for key in common_reuse_keys: + try: + memory_overhead += int(key[2]) + except ValueError: + # not an integer. Fallback is to fuse + return False + + bw_saving = self.score_fusion_memory(node1, node2) + + # The factor 32 here is quite arbitrary. + if V.graph.sizevars.statically_known_gt(memory_overhead, 32 * bw_saving): + return True + return False + + def fusion_prevent_too_many_reads_and_writes( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode, threshold: int + ) -> bool: + # After fusion, we need to calculate the unique I/O buffers + # accounting for buffers that become internal (removed through fusion) + + # Get all nodes that will be in the fused node + fused_node_names = OrderedSet( + [node.get_name() for node in node1.get_nodes()] + + [node.get_name() for node in node2.get_nodes()] + ) + + # Calculate node2 reads that can be removed through fusion, + # i.e. node2 reads that are outputs of node1 + node1_write_names = OrderedSet(dep.name for dep in node1.read_writes.writes) + node2_read_names = OrderedSet(dep.name for dep in node2.read_writes.reads) + reads_removed_through_fusion = node2_read_names & node1_write_names + + # Calculate node1 writes that can be removed through fusion, + # i.e. node1 writes that are only read by node2 + writes_removed_through_fusion: OrderedSet[str] = OrderedSet() + for write_dep in node1.read_writes.writes: + if self.can_buffer_be_removed_through_fusion( + write_dep.name, fused_node_names + ): + writes_removed_through_fusion.add(write_dep.name) + + # Get all unique reads (union of both nodes' reads) + all_read_names = OrderedSet( + dep.name for dep in node1.read_writes.reads + ) | OrderedSet(dep.name for dep in node2.read_writes.reads) + + # Get all unique writes (union of both nodes' writes) + all_write_names = OrderedSet( + dep.name for dep in node1.read_writes.writes + ) | OrderedSet(dep.name for dep in node2.read_writes.writes) + + # Remove reads that become internal + unique_reads = all_read_names - reads_removed_through_fusion + + # Remove writes that become internal + unique_writes = all_write_names - writes_removed_through_fusion + + # Get all unique buffer names (reads and writes combined, but no double counting) + unique_io_buffers = unique_reads | unique_writes + + return len(unique_io_buffers) > threshold + + def are_long_distant_nodes( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + """ + This function prevents fusion for nodes that can increase memory + footprint. This problem is more common in horizontal fusion, where nodes + that are far apart in the original order get fused, lengthening the live + intervals of tensors. This is very evident in models with activation + checkpointing, where the recomputed nodes from different checkpointed + regions get fused and significantly increase the memory footprint. + + The current attempt is a quick, possibly hacky, heuristic to prevent the + fusion of nodes that are far away in the original order. + + A better but difficult to implement heurisitic would be to use live + intervals of the buffers, find region of peak pressure in the original + program and prevent fusion that crosses that peak region. We might need + special care or good approximation in this implementation, as fusion of + node changes live intervals, and re-computing live intervals and peak + memory after each fusion can introduce large compilation overhead. + """ + proximity_score = max( + abs(node1.min_order - node2.max_order), + abs(node2.min_order - node1.max_order), + ) + return proximity_score > 64 + + def decide_fusion_fail_reason( + self, + node1: BaseSchedulerNode, + node2: BaseSchedulerNode, + common_buf_names: Union[tuple[str, ...], OrderedSet[str]], + ) -> str: + """ + Try to decide reasons why fusion fail due to no shared memory even though + there are common buffers. + """ + reasons = {} + node1_name2dep = {dep.name: dep for dep in node1.read_writes.reads_and_writes()} + node2_name2dep = {dep.name: dep for dep in node2.read_writes.reads_and_writes()} + + for buf_name in common_buf_names: + buf = V.graph.get_buffer(buf_name) + lhs_dep = node1_name2dep[buf_name] + rhs_dep = node2_name2dep[buf_name] + + if not isinstance(lhs_dep, MemoryDep) or not isinstance(rhs_dep, MemoryDep): + reasons[buf_name] = ( + f"not MemoryDep: {type(lhs_dep)} v.s. {type(rhs_dep)}" + ) + continue + + if lhs_dep.get_numel() != rhs_dep.get_numel(): + reasons[buf_name] = ( + f"different numel: {lhs_dep.get_numel()} v.s. {rhs_dep.get_numel()}" + ) + continue + + # same numel but different MemoryDep.size. Should be broadcasting + if sympy_product(lhs_dep.size) != sympy_product(rhs_dep.size): + reasons[buf_name] = "broadcast" + continue + + lhs_off = lhs_dep.get_offset() + rhs_off = rhs_dep.get_offset() + if lhs_off != rhs_off: + # One example is in transformer, we use a concatenated linear layer + # to project Q/K/V and then split the result. The 3 splits will + # point to the same buffer with different offsets. + reasons[buf_name] = f"different offset: {lhs_off} v.s. {rhs_off}" + continue + + if ( + lhs_dep.normalize_with_stride_order() + == rhs_dep.normalize_with_stride_order() + ): + reasons[buf_name] = f"Mismatch loop orders: {lhs_dep} v.s. {rhs_dep}" + continue + + # Add more rules here + layout_str = "" + if not isinstance(buf, ir.TorchBindObject): + layout_str = f"Layout: {buf.layout}" + reasons[buf_name] = ( + f"Unknown reason: {lhs_dep} v.s. {rhs_dep}. {layout_str}" + ) + + return str(reasons) + + def shared_data_after_inverting_indexing( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> int: + """ + Attempts to enable fusion between two nodes by inverting indexing patterns. + + This optimization targets cases where node1 has a contiguous write and + node2 has a contiguous write but discontiguous read. By inverting the + indexing in node2's read and write operations, we can make them compatible + with node1 for potential fusion. + + Args: + node1: First scheduler node (source) + node2: Second scheduler node (target for inversion) + + Returns: + int: Fusion score if successful, 0 if optimization not applicable + """ + + if not config.loop_index_inversion_in_fusion: + return -1 + + if any(n.is_cpu() for n in [node1, node2]): + return -1 + + # Check for shared buffers between nodes + node1_buffer_names = node1.read_writes.buffer_names() + node2_buffer_names = node2.read_writes.buffer_names() + common_buffer_names = node1_buffer_names & node2_buffer_names + + if not common_buffer_names: + return -1 + + # only invert if node1 is single unmet dep + node2_unmet_dependencies = OrderedSet( + dep.name for dep in node2.unmet_dependencies + ) + if node2_unmet_dependencies - node1_buffer_names: + return -1 + + if len(node2_unmet_dependencies) > 1: + return -1 + + # Currently only handle single read/write operations + if len(node2.read_writes.reads) > 1 or len(node2.read_writes.writes) > 1: + return -1 + + node2_read = next(iter(node2.read_writes.reads)) + node2_write = next(iter(node2.read_writes.writes)) + + if not isinstance(node2_read, MemoryDep) or not isinstance( + node2_write, MemoryDep + ): + return -1 + + node1_writes = {dep.name: dep for dep in node1.read_writes.writes} + if node2_read.name not in node1_writes: + return -1 + + node1_write = node1_writes[node2_read.name] + + if not isinstance(node1_write, MemoryDep): + return -1 + + # We are checking for compatibility with the normalized node1 write + # then modifying node2 reads/writes. since the node1 write will be just used + # for compatibility, while node2 will be used in actual modification, just + # normalize node1 not node2. + node1_write = node1_write.normalize() + + if ( + node1_write.index != node2_write.index + and node1_write.size != node2_write.size + ): + return -1 + + if node2_read.size != node2_write.size or len(node2_read.var_names) != 1: + return -1 + + # Verify we have exactly two indexing expressions (one read, one write) + if len(node2._body.indexing_exprs) != 2: # type: ignore[attr-defined] + return -1 + + # No subblocks allowed for this optimization + if node2._body.subblocks: # type: ignore[attr-defined] + return -1 + + assert ( + "index0" in node2._body.indexing_exprs # type: ignore[attr-defined] + and "index1" in node2._body.indexing_exprs # type: ignore[attr-defined] + ) + + # Extract and verify single read expression + node2_read_exprs = OrderedSet(expr for expr in node2._body.get_read_exprs()) # type: ignore[attr-defined] + if len(node2_read_exprs) != 1: + return -1 + + read_expr = next(iter(node2_read_exprs)) + + # Determine which index is for reading vs writing + if read_expr == node2._body.indexing_exprs["index0"]: # type: ignore[attr-defined] + read_expr_index = "index0" + write_expr_index = "index1" + else: + assert read_expr == node2._body.indexing_exprs["index1"] # type: ignore[attr-defined] + read_expr_index = "index1" + write_expr_index = "index0" + + from torch._inductor.invert_expr_analysis import generate_inverse_formula + + index_vars = node2._body.vars[0] # type: ignore[attr-defined] + if len(index_vars) != 1: + return -1 + + simplified_terms = [] + for term in sympy.Add.make_args(read_expr): + simplified_terms.append( + V.graph.sizevars.combine_modular_indexing_pairs(term) + ) + simplified_read_expr = sum(simplified_terms) + + inverse_formula = generate_inverse_formula(simplified_read_expr, index_vars[0]) + + # formula is not invertible + if inverse_formula is None: + return -1 + + # === Apply Inversion === + + # Swap the indexing expressions using the inverse formula + node2._body.indexing_exprs[read_expr_index] = node2._body.indexing_exprs[ # type: ignore[attr-defined] + write_expr_index + ] + node2._body.indexing_exprs[write_expr_index] = inverse_formula # type: ignore[attr-defined] + + # Refresh dependencies and calculate fusion score + node2.refresh_dependencies(True, False) # type: ignore[attr-defined] + score = self.score_fusion_memory(node1, node2) + assert isinstance(score, int) + + fusion_log.info("Shared memory after inversion: %d", score) + return score + + def shared_data_after_reordering_loop( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> int: + """ + Right now just greedily reorder the loop of node1 to be compatible with node2, + but ideally we should have some heuristics to reorder the loop for node2 + to be compatible with node1 if that's more efficient. + + Return the amount of shared data re-computed in this method. + If no such recomputation happens, return -1 (not return 0 since 0 is a valid + amount of shared data). + + """ + + # TODO Don't do loop reordering for CPU for now. + # Should debug more why it does not work for CPU codegen + if not config.loop_ordering_after_fusion or any( + n.is_cpu() for n in [node1, node2] + ): + return -1 + + # in some rare case, a template can be passed in. + # Check test_interaction_with_multi_template in test_loop_ordering.py + # and https://github.com/pytorch/pytorch/issues/165579 + if node1.is_template() or node2.is_template(): + return -1 + + node1_buffer_names = node1.read_writes.buffer_names() + node2_buffer_names = node2.read_writes.buffer_names() + # Fast path: no common buffers. + common_buffer_names = node1_buffer_names & node2_buffer_names + if not common_buffer_names: + return -1 + + node1_name2dep = {dep.name: dep for dep in node1.read_writes.reads_and_writes()} + node2_name2dep = {dep.name: dep for dep in node2.read_writes.reads_and_writes()} + + # Find the commons buffers that has different loop orders + candidates = [] + for buffer_name in common_buffer_names: + lhs_dep = node1_name2dep[buffer_name] + rhs_dep = node2_name2dep[buffer_name] + if ( + lhs_dep.normalize_with_stride_order() + == rhs_dep.normalize_with_stride_order() + ): + candidates.append( + ( + V.graph.sizevars.size_hint(lhs_dep.get_numel(), fallback=0), + lhs_dep, + rhs_dep, + ) + ) + + if len(candidates) == 0: + return -1 + + # Pick the largest buffer to guide the loop reordering + _numel, lhs_dep, rhs_dep = max(candidates, key=operator.itemgetter(0)) + + if not isinstance(lhs_dep, MemoryDep) or not isinstance(rhs_dep, MemoryDep): + return -1 + + if lhs_dep.num_vars != rhs_dep.num_vars: + # this can happen due to we don't merge loops. + # We can not do loop reordering in this case right now + # Simply returning true if the two Deps are the same after + # normalization (merging loops) + if lhs_dep.normalize() == rhs_dep.normalize(): + return self.dep_size_hint(lhs_dep) + return -1 + + reordered = False + # Only reorder loops for pointwise for now + if not node1.is_reduction(): + reordered = node1.reorder_loops_by_dep_pair(lhs_dep, rhs_dep) + elif not node2.is_reduction(): + reordered = node2.reorder_loops_by_dep_pair(rhs_dep, lhs_dep) + else: + loop_ordering_log.debug( + "Don't reorder loops since both nodes are reductions: %s v.s. %s", + node1.get_name(), + node2.get_name(), + ) + + return ( + typing.cast(int, self.score_fusion_memory(node1, node2)) + if reordered + else -1 + ) + + def unfusable_node(self, node: BaseSchedulerNode) -> bool: + """ + Is this node unfusable under any conditions. + """ + return ( + isinstance(node, (ExternKernelSchedulerNode, NopKernelSchedulerNode)) + and not node.is_template() + and not is_output_of_multi_outputs_template(node.node) + ) + + def check_prologue_fusion_heuristics_fusable( + self, + prologue_node: BaseSchedulerNode, + template_node: BaseSchedulerNode, + why: WhyNoFuse, + ) -> bool: + """ + Heuristics to avoid benchmarking predictably slow prologue fusions + """ + # user opt into more aggressive prologue fusion, dont use heuristics + if prologue_node.get_operation_names() <= V.graph.invoke_quant_ops: + return True + + read_bytes = prologue_node.get_read_buffer_sizes() + write_bytes = prologue_node.get_write_buffer_sizes() + + # Initially, only do fusions which will result in fewer memory accesses inside of the template to avoid + # potential bad cache behavior and shared memory use. + # we also want to avoid benchmarking reliably unprofitable fusions like downcasts from fp32 -> fp16 inside kernel. + # allowing gathers by allowing increasing write_bytes by small factor + # TODO - make configurable per input, for instance, bias can fuse fp32 -> fp16 profitably + + BYTES_THRESHOLD_MULTIPLIER = 1.1 + if read_bytes > (write_bytes * BYTES_THRESHOLD_MULTIPLIER): + why("prologue fusion will not increase amount of bytes read in kernel") + return False + + # we want to avoid attempting to fuse predictably unprofitable prologues + # such as increasing the unaligned reads or writes. + # TODO - would be nice to generalize this, however, we would need more explicit + # knowledge of memory access patterns in the TritonTemplate in order to know + # the stride order to check alignment. + origins = tuple( + e.target + for n in prologue_node.get_nodes() + if n.node is not None + for e in n.node.get_origins() + if e.op == "call_function" + ) + if origins == (torch.ops.aten.constant_pad_nd.default,): + why( + "prologue fusion will not increase attempt to fuse in padding bc it increases unaligned reads" + ) + return False + + def low_prec_fp(dtype: torch.dtype) -> bool: + return dtype.itemsize <= 2 and dtype.is_floating_point + + if ( + low_prec_fp(template_node.get_template_node_or_throw().dtype) + and not prologue_node.can_codegen_in_low_precision() + ): + why( + "prologue fusion that must be upcast to fp32 not profitable for low precision templates" + ) + return False + + return True + + def get_expand_dim_for_pointwise_nodes( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> Optional[tuple[int, SchedulerNode, sympy.Expr]]: + """ + Fusing two small pointwise nodes significantly reduces kernel overhead + and launch overhead. However, slightly different sizes would prevent fusion. + Here, we decide if expanding sizes of one node is profitible by allowing + fusion, and returns the dimension to expand, node with smaller sizes, + and new size after expand. + """ + # only support scheduler node + if not isinstance(node1, SchedulerNode) or not isinstance(node2, SchedulerNode): + return None + + # only support computued buffer + if not ( + isinstance(node1.node, ir.ComputedBuffer) + and isinstance(node2.node, ir.ComputedBuffer) + ): + return None + + # does not support mutation yet since relying on index mod to handle + # out-of-boundary access. + if node1.has_aliasing_or_mutation() or node2.has_aliasing_or_mutation(): + return None + + # skip halide which does not support mod for index + if config.cpu_backend == "halide": + return None + + # only support pointwise nodes with the same reduction size + n1_sizes, n2_sizes = node1._sizes, node2._sizes + n1_iter_sizes, n1_reduce_sizes = n1_sizes + n2_iter_sizes, n2_reduce_sizes = n2_sizes + if ( + node1.is_reduction() + or node2.is_reduction() + or n1_reduce_sizes != n2_reduce_sizes + or len(n1_iter_sizes) != len(n2_iter_sizes) + ): + return None + + # only support nodes with 1 write for simplification + if len(node1.read_writes.writes) > 1 or len(node2.read_writes.writes) > 1: + return None + + # When memory access is small, reducing gpu kernel overhead is profitable over + # slightly larger memory access. + node1_write_memory = self.dep_size_hint(next(iter(node1.read_writes.writes))) + node2_write_memory = self.dep_size_hint(next(iter(node1.read_writes.writes))) + if ( + max(node1_write_memory, node2_write_memory) + > config.small_memory_access_threshold + ): + return None + + # does not support reinplace since `index % boundary` may lead to + # race condition + def has_reusable_buffer(node: BaseSchedulerNode) -> bool: + for read in node.read_writes.reads: + input_buf: Optional[Union[SchedulerBuffer, SchedulerDonatedBuffer]] + if read.name in self.name_to_donated_buffer: + input_buf = self.name_to_donated_buffer[read.name] + else: + input_buf = self.name_to_buf.get(read.name) + + if ( + input_buf + and V.graph.wrapper_code.can_reuse(input_buf, node) + and not isinstance(input_buf.defining_op, NopKernelSchedulerNode) + ): + return True + return False + + if has_reusable_buffer(node1) or has_reusable_buffer(node2): + return None + + # only support nodes with 1 mismatch dimension + mismatch_dimensions = [] + for idx, (n1_size, n2_size) in enumerate(zip(n1_iter_sizes, n2_iter_sizes)): + if n1_size != n2_size: + mismatch_dimensions.append(idx) + + if len(mismatch_dimensions) != 1: + return None + + mismatch_dim = mismatch_dimensions[0] + mismatch_size1, mismatch_size2 = ( + n1_iter_sizes[mismatch_dim], + n2_iter_sizes[mismatch_dim], + ) + if V.graph.sizevars.statically_known_lt(mismatch_size1, mismatch_size2): + return mismatch_dim, node1, mismatch_size2 + elif V.graph.sizevars.statically_known_lt(mismatch_size2, mismatch_size1): + return mismatch_dim, node2, mismatch_size1 + else: + return None + + def can_fuse( + self, + node1: BaseSchedulerNode, + node2: BaseSchedulerNode, + can_reorder: bool = False, + allow_mix_order_reduction: bool = True, + ) -> bool: + """ + Determine if it is possible to combine node1 and node2 into a + single fused node. + """ + if node1 is node2: + return False + + if isinstance(node1, FusedMixOrderReductions): + return node1.can_fuse_with(node2) + if isinstance(node2, FusedMixOrderReductions): + # We don't fuse something before a FusedMixOrderReductions + # right now + return False + + why = WhyNoFuse(node1, node2) + + if node1.is_template() and self.get_backend( + node1.get_device() + ).can_fuse_multi_outputs_template(node1, node2): + return True + + if isinstance(node1, GroupedSchedulerNode) or isinstance( + node2, GroupedSchedulerNode + ): + why("grouped node must not be fused with other nodes") + return False + if ( + isinstance(node1, (ExternKernelSchedulerNode, NopKernelSchedulerNode)) + and not node1.is_template() + ): + why("node1 is extern or nop") + return False + if ( + isinstance(node2, (ExternKernelSchedulerNode, NopKernelSchedulerNode)) + and not node2.is_template() + ): + why("node2 is extern or nop") + return False + + if node2.get_operation_names() & node1.ancestors: + why("node1 must go before node2") + return False + + if node2.is_template(): + if not config.prologue_fusion: + why("prologue fusion turned off") + return False + + if node1.is_reduction() or node1.is_template(): + why("prologue fusion only supported for pointwise nodes") + return False + + template = node2.get_template_node_or_throw() + if not isinstance(template, ir.TritonTemplateBuffer): + why("prologue fusion only supported for TritonTemplates") + return False + + allowed_prologue_inps = template.get_allowed_prologue_inps() + + unsupported_prologue_args = ( + OrderedSet(inp.get_name() for inp in template.inputs) # type: ignore[union-attr] + - allowed_prologue_inps + ) + + if node1.get_buffer_names() & unsupported_prologue_args: + why("prologue fusion not implemented for kernel for these inputs") + return False + + if node1.has_aliasing_or_mutation() or node1.has_aliasing_or_mutation(): + why("template prologue can only fuse functional pointwise nodes") + return False + + prologue_nodes = node1.get_nodes() + for node in prologue_nodes[:-1]: + node_outs = node.get_outputs() + for out in node_outs: + if not all(user.node in prologue_nodes for user in out.users): + why("template prologue can only fuse nodes with a single use") + return False + + template_snodes = ( + [node2] + if not isinstance(node2, FusedSchedulerNode) + else [n for n in node2.snodes if n.is_template()] + ) + assert len(template_snodes) == 1 + template_snode = template_snodes[0] + + if not ( + len(prologue_nodes[-1].outputs) == 1 + and len(prologue_nodes[-1].outputs[0].users) == 1 + and prologue_nodes[-1].outputs[0].users[0].node is template_snode + ): + why( + "template prologue can only fuse nodes with a single use into template" + ) + return False + + if not self.check_prologue_fusion_heuristics_fusable(node1, node2, why): + return False + + if node1.is_template() and ( + node2.has_aliasing_or_mutation() + or node2.is_reduction() + or not config.epilogue_fusion + ): + why("template epilogue not satisfied") + return False + + if (node1.get_buffer_names() & V.graph.no_fuse_buffer_names) or ( + node2.get_buffer_names() & V.graph.no_fuse_buffer_names + ): + why("fusion for buffer explicit disabled") + return False + device = node1.get_device() + device2 = node2.get_device() + if device != device2: + why("device mismatch (%s vs %s)", device, device2) + return False + del device2 + + shared_data_score = self.score_fusion_memory( + node1, node2, allow_mix_order_reduction=allow_mix_order_reduction + ) + assert isinstance(shared_data_score, int) + + if ( + can_reorder + and shared_data_score < config.score_fusion_memory_threshold + and config.loop_ordering_after_fusion + ): + new_shared_data_score = self.shared_data_after_reordering_loop(node1, node2) + if new_shared_data_score >= 0: + shared_data_score = new_shared_data_score + + if config.expand_dimension_for_pointwise_nodes and ( + expand_analysis := self.get_expand_dim_for_pointwise_nodes(node1, node2) + ): + (expand_dim, smaller_node, expand_size) = expand_analysis + smaller_node.expand_dimension_for_pointwise_node(expand_dim, expand_size) + shared_data_score = self.score_fusion_memory(node1, node2) + assert isinstance(shared_data_score, int) + + if ( + config.loop_index_inversion_in_fusion + and shared_data_score < config.score_fusion_memory_threshold + ): + new_shared_data_score = self.shared_data_after_inverting_indexing( + node1, node2 + ) + if new_shared_data_score >= 0: + shared_data_score = new_shared_data_score + + if loop_ordering_log.isEnabledFor(logging.DEBUG): + loop_ordering_log.debug( + "%s and %s has %s shared data", + node1.get_name(), + node2.get_name(), + shared_data_score, + ) + + if not V.choices.can_fuse(self, node1, node2, shared_data_score): + return False + + if node1.get_operation_names() & node2.ancestors: + # node2 depends on node1 outputs + return ( + self.can_fuse_vertical(node1, node2) + and V.choices.can_fuse_vertical(self, node1, node2, shared_data_score) + and self.get_backend(device).can_fuse_vertical(node1, node2) + ) + else: # nodes don't depend on each other, but may have common reads + return V.choices.can_fuse_horizontal( + self, node1, node2, shared_data_score + ) and self.get_backend(device).can_fuse_horizontal(node1, node2) + + def can_fuse_vertical( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + """ + Check if it is legal to fuse a consumer (node2) into a producer (node1). + + We can fuse them if all the reads of node2 either match + corresponding writes in node1, or are written by nodes that can + be scheduled before the fusion of node1 and node2. + """ + node1_buf_names = node1.get_buffer_names() + why = WhyNoFuse(node1, node2) + remaining_deps_by_name: dict[str, list[Dep]] = defaultdict(list) + + for dep in node2.unmet_dependencies: + name = self.mutation_renames.get(dep.name, dep.name) + if isinstance(dep, WeakDep) and self.fusable_weak_dep(dep, node1, node2): + continue + remaining_deps_by_name[name].append(dep) + + for cd in node1.read_writes.writes: + if not isinstance(cd, MemoryDep): + continue + remaining = remaining_deps_by_name.get( + self.mutation_renames.get(cd.name, cd.name) + ) + if remaining: + for rd in remaining: + if self.fusable_read_and_write(rd, cd): + remaining.remove(rd) # noqa: B909 + + remaining_deps = OrderedSet( + dep.name + for dep in itertools.chain.from_iterable(remaining_deps_by_name.values()) + ) + + if remaining_deps & node1_buf_names: + # MemoryDeps didn't match and read different locations of the same buffer. + # Examples here include: + # - MemoryDep("foo", x) != MemoryDep("foo", x + 1) + # - MemoryDep("foo", x) != StarDep("foo") + why("memory deps did not match") + return False + + node1_op_names = node1.get_operation_names() + for name in remaining_deps: + op_name = self.name_to_buf[name].defining_op_name() + if node1_op_names & self.name_to_fused_node[op_name].ancestors: + why("intermediate nodes between node1 & node2") + return False + + return True + + def fusable_weak_dep( + self, weak_dep: WeakDep, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + if weak_dep.name not in node1.get_buffer_names(): + return False + + # A weak dep can be fused if and only if the fused operation acts inplace + # on the buffer being mutated. i.e. the same index is being read then mutated + mutating_writes = [ + write + for write in node2.read_writes.writes + if write.name == weak_dep.mutating_buf + ] + if len(mutating_writes) != 1: + return False + write = mutating_writes[0] + if isinstance(write, StarDep): + return False + assert isinstance(write, MemoryDep) + + if free_symbol_is_type(write.index, SymT.TMP): + return False + + real_name = self.mutation_real_name[weak_dep.mutating_buf] + relevant_reading_nodes = [node1] + if isinstance(node1, ForeachKernelSchedulerNode): + relevant_reading_nodes = node1.snodes + num_concurrent_reads = 0 + for reading_node in relevant_reading_nodes: + relevant_reads = [ + read + for read in reading_node.read_writes.reads + if read.name == real_name + ] + if not relevant_reads: + continue + num_concurrent_reads += 1 + if not all( + isinstance(read, MemoryDep) + and not free_symbol_is_type(read.index, SymT.TMP) + and read.index == write.index + and read.size == write.size + for read in relevant_reads + ): + return False + return num_concurrent_reads <= 1 + + # StarDep doesn't match MemoryDep, different indices don't match + # However, broadcasting sometimes strips dimensions, and if that's the case + # we still can match unmet dep + # if there's indirect indexing, don't match it + def fusable_read_and_write(self, read: Dep, write: MemoryDep) -> bool: + if isinstance(read, MemoryDep): + read_name = self.mutation_renames.get(read.name, read.name) + + if ( + read_name != write.name + or free_symbol_is_type(read.index, SymT.TMP) + or free_symbol_is_type(write.index, SymT.TMP) + ): + return False + + if config.loop_ordering_after_fusion and read.num_vars != write.num_vars: + # Need merge loops if we do loop ordering after fusion since + # we have not merged the loops yet when creating the scheduler + # nodes. + read = read.normalize() + write = write.normalize() + + return ( + read.index == write.index + and len(read.size) >= len(write.size) + and read.size[: len(write.size)] == write.size + ) + elif isinstance(read, StarDep): + read_name = self.mutation_renames.get(read.name, read.name) + write_name = self.mutation_renames.get(write.name, write.name) + if ( + read.mode == write.mode + and write.mode is not None + and read_name == write_name + ): + return True + return False + + def dep_size_hint(self, dep: Dep, count_bytes: bool = True) -> int: + return V.graph.get_dep_size_hint(dep, count_bytes) + + def score_fusion_memory( + self, + node1: BaseSchedulerNode, + node2: BaseSchedulerNode, + count_bytes: bool = True, + return_is_mix_order_reduction: bool = False, + allow_mix_order_reduction: bool = True, + ) -> int | tuple[int, bool]: + """ + The first term in our fusion score that estimates number of saved + memory operations. + """ + + def _construct_return_value(score, is_mix_order_reduction): + return ( + (score, is_mix_order_reduction) + if return_is_mix_order_reduction + else score + ) + + if allow_mix_order_reduction and MixOrderReduction.can_fuse(node1, node2): + # The fusion score for mix order reduction only count + # numel so far. It's actually fine. This makes other fusions + # sharing the same amount of numels go first; but make + # fusions only share weight/bias go later. + score = MixOrderReduction.get_fusion_score(node1, node2) + return _construct_return_value(score, True) + + node1_dep_len = len(node1.read_writes.reads) + len(node1.read_writes.writes) + node2_dep_len = len(node2.read_writes.reads) + len(node2.read_writes.writes) + + # optimization: iter over smaller set + if min(node1_dep_len, node2_dep_len) * 4 < max(node1_dep_len, node2_dep_len): + if node1_dep_len > node2_dep_len: + node1, node2 = node2, node1 + + deps = [ + dep + for dep in node1.read_writes.reads | node1.read_writes.writes + if dep in node2.read_writes.reads or dep in node2.read_writes.writes + ] + + return _construct_return_value( + sum(self.dep_size_hint(dep, count_bytes) for dep in deps), False + ) + + common_memory_deps = (node1.read_writes.reads | node1.read_writes.writes) & ( + node2.read_writes.reads | node2.read_writes.writes + ) + return _construct_return_value( + sum(self.dep_size_hint(dep) for dep in common_memory_deps), False + ) + + def get_possible_fusions_with_highest_priority( + self, possible_fusions: list[tuple[BaseSchedulerNode, BaseSchedulerNode]] + ) -> list[tuple[BaseSchedulerNode, BaseSchedulerNode]]: + # Group the possible fusions based on their priority from the backend. + # Only return the group of possible fusions with highest priority. + if len(possible_fusions) == 0: + return possible_fusions + possible_fusions_group_by_priority: dict[ + int, list[tuple[BaseSchedulerNode, BaseSchedulerNode]] + ] = {} + + for node1, node2 in possible_fusions: + assert node1.get_device() == node2.get_device() + device = node1.get_device() + fusion_pair_priority = int( + self.get_backend(device).get_fusion_pair_priority(node1, node2) + ) + if fusion_pair_priority not in possible_fusions_group_by_priority: + possible_fusions_group_by_priority[fusion_pair_priority] = [ + (node1, node2), + ] + else: + possible_fusions_group_by_priority[fusion_pair_priority].append( + (node1, node2) + ) + # return the possible fusions with highest priority + possible_fusions_with_highest_priority = min( + possible_fusions_group_by_priority.items(), key=operator.itemgetter(0) + )[1] + assert len(possible_fusions_with_highest_priority) > 0 + return possible_fusions_with_highest_priority + + def score_fusion_key( + self, nodes: tuple[BaseSchedulerNode, BaseSchedulerNode] + ) -> Any: + """ + Shim for list.sort(key=...) + """ + return V.choices.score_fusion(self, *nodes) + + def compute_last_usage(self) -> None: + """ + Populate node.last_usage recursively (also for the nodes within a FusedSchedulerNode) + """ + + future_used_buffers = OrderedSet(V.graph.get_output_names()) + + for node in reversed(self.nodes): + node.set_last_usage(future_used_buffers, self.mutation_real_name) + future_used_buffers.update(node.last_usage) + + def free_buffers(self) -> None: + """Free any buffers that are no longer needed""" + for name in sorted( + self.buffer_names_to_free + - V.graph.removed_buffers + - V.graph.wrapper_code.freed # type: ignore[has-type] + ): + if name in self.name_to_buf: + buf = self.name_to_buf[name] + if buf.can_free(): + V.graph.wrapper_code.codegen_free(buf.node) + elif name in V.graph.graph_inputs: + inp = V.graph.graph_inputs[name] + if isinstance(inp, ir.TorchBindObject): + V.graph.wrapper_code.codegen_free(inp) + elif isinstance(inp, ir.GeneratorState): + continue + else: + storage = inp.data + assert ( + isinstance(storage, ir.StorageBox) and storage.is_input_buffer() + ) + V.graph.wrapper_code.codegen_free(storage.data) + + self.buffer_names_to_free.clear() + + def flush(self) -> None: + for backend in self.backends.values(): + backend.flush() + self.free_buffers() + + def codegen_extern_call(self, scheduler_node: ExternKernelSchedulerNode) -> None: + assert isinstance(scheduler_node, ExternKernelSchedulerNode) + # 'decide_inplace_update' stores the inplace update decisions in + # the current kernel from where 'allocate' retrieve those decisions. + # We have to make sure there is a non-NULL kernel handler to store + # those inplace update decisions. + counters["inductor"]["extern_calls"] += 1 + with V.set_kernel_handler(Kernel(increase_kernel_count=False)): + scheduler_node.decide_inplace_update() + scheduler_node.mark_run() + node = scheduler_node.node + assert isinstance(node, ir.ExternKernel), f"{type(node)=}" + node.codegen(V.graph.wrapper_code) + self.free_buffers() + + def create_backend(self, device: torch.device) -> BaseScheduling: + assert not is_gpu(device.type) or device.index is not None, ( + f"{device} should have been normalized in lowering" + ) + V.graph.add_device_info(device) + + device_scheduling = get_scheduling_for_device(device.type) + if device_scheduling is None: + raise RuntimeError(f"Unsupported device type: {device.type}") + + if not has_triton(): + if ( + device.type == "cuda" + and (device_props := torch.cuda.get_device_properties(device)).major < 7 + ): + raise GPUTooOldForTriton(device_props, inspect.currentframe()) + elif is_gpu(device.type) and not device.type == "mps": + raise TritonMissing(inspect.currentframe()) + + return device_scheduling(self) + + def get_backend(self, device: Optional[torch.device]) -> BaseScheduling: + assert device is not None + if device not in self.backends: + self.backends[device] = self.create_backend(device) + return self.backends[device] + + def enter_context(self, node: BaseSchedulerNode) -> None: + def get_order(n: torch.fx.Node) -> int: + if n not in self.origin_to_index: + self.origin_to_index.update({n: i for i, n in enumerate(n.graph.nodes)}) + return self.origin_to_index[n] + + # Use a dict to have ordering + origins = { + (get_order(e), e): None + for n in node.get_nodes() + if n.node is not None + for e in n.node.get_origins() + } + origins = list(origins.keys()) + if origins: + _, last = max(origins, key=operator.itemgetter(0)) + V.graph.wrapper_code.enter_context(last) + + def can_buffer_be_removed_through_fusion( + self, name: str, fused_node_names: OrderedSet[str] + ) -> bool: + try: + users = self.name_to_buf[name].users + except KeyError: + return False + return ( + all(user.is_weak or user.get_name() in fused_node_names for user in users) + and name not in self.mutation_renames + and name not in self.mutation_real_name + ) + + def should_partition( + self, node: BaseSchedulerNode, should_log: bool = False + ) -> bool: + """Return True if we should partition the inductor graph on this node""" + + # Allow users to manually specify if a node should be partitioned + # Can only do this for FallbackKernels + ir_node = node.node + if isinstance(ir_node, torch._inductor.ir.FallbackKernel) and ( + op := ir_node.op_overload + ): + op_overload_packet_name = op.name() + op_overload_name = ( + f"{op_overload_packet_name}.{op._overloadname}" + if isinstance(op, torch._ops.OpOverload) + else op_overload_packet_name + ) + if ( + op_overload_packet_name in config.custom_should_partition_ops + or op_overload_name in config.custom_should_partition_ops + ): + assert isinstance(op, torch._ops.OpOverload) + return True + + # When not using cudagraphs, keep all kernels in the `call` function + # instead of graph partition functions, since graph partition only brings + # benefit to cudagraph + if ( + not torch._inductor.config.triton.cudagraphs + and _unstable_customized_partition_wrapper.wrapper is None + ): + return True + + # avoid duplicating logs when should_partition is called multiple times + # on the same node + def noop_log(msg: str, node: Optional[BaseSchedulerNode]) -> None: + return + + # Don't log partition reasons for CPU-only graphs since cudagraph + # partitioning is not relevant when there are no GPU devices + has_gpu_device = any(is_gpu(device) for device in V.graph.device_types) + log_partition_reason = ( + maybe_log_cudagraph_partition if should_log and has_gpu_device else noop_log + ) + + if isinstance(node, FusedSchedulerNode): + return any(self.should_partition(snode) for snode in node.snodes) + + assert node.node is not None + + if not node.is_gpu(): + log_partition_reason("non gpu ops", node=node) + + return True + + if isinstance(node.node, ir.DeviceCopy): + log_partition_reason("DeviceCopy ops", node=node) + return True + + if isinstance(node.node, ir.Conditional): + log_partition_reason("Conditional ops", node=node) + return True + + if getattr(node.node, "unbacked_bindings", None): + log_partition_reason("unbacked binding ops", node=node) + return True + + if is_cudagraph_unsafe_op(node.node): + log_partition_reason("CUDAGraph-unsafe custom ops", node=node) + return True + + # Partition around nodes with dynamic shapes when cudagraph_skip_dynamic_graphs is enabled + if config.triton.cudagraph_skip_dynamic_graphs: + if get_scheduler_node_symbol_uses(node): + log_partition_reason("dynamic shape ops", node=node) + return True + + return False + + def get_name_to_nodes( + self, + ) -> dict[str, Union[ir.IRNode, ir.TorchBindObject, sympy.Expr]]: + """ + Return a mapping from name strings to the corresponding graph inputs or + base scheduler node outputs. + """ + name_to_node: dict[str, Union[ir.IRNode, ir.TorchBindObject, sympy.Expr]] = {} + name_to_node.update(V.graph.graph_inputs) + + for node in self.nodes: + for name, scheduler_buffer in node.outputs_by_name.items(): + name_to_node[name] = scheduler_buffer.node + + return name_to_node + + def compute_graph_partition_maps( + self, + signatures: list[GraphPartitionSignature], + ) -> None: + """ + computes a mapping from partition input/output indices to graph input/output + indices for each partition. + """ + name_to_graph_input_index = { + name: idx for idx, name in enumerate(V.graph.graph_inputs) + } + name_to_graph_output_index = { + name: idx for idx, name in enumerate(V.graph.get_output_names()) + } + + V.graph.partition_maps = [] + for partition_id, signature in enumerate(signatures): + if signature.skip_cudagraph: + # Note: [Graph Partition Map for CUDAGraph] + # number of partition map should be the same as the number of generated + # partition functions. This assumption will be used when cudagraphify + # each partition function. + continue + + input_mapping = [] + for name in signature.input_nodes: + input_mapping.append(name_to_graph_input_index.get(name)) + + output_mapping = [] + for node in signature.output_nodes: + output_mapping.append(name_to_graph_output_index.get(node.get_name())) + + V.graph.partition_maps.append( + GraphPartitionMap( + partition_id, + input_mapping, + output_mapping, + signature.constant_names, + ) + ) + + def get_graph_partition_symbol_inputs( + self, + partition: PartitionType, + input_nodes: dict[str, Union[ir.IRNode, ir.TorchBindObject, sympy.Expr]], + ) -> OrderedSet[sympy.Symbol]: + """ + Returns all symbol inputs which are required to be in scope to successfully + perform codegen for this graph partition, including: + - free symbols used in partition nodes + - free symbols in partition input/node shapes, strides, and offsets. This is needed + for recording cudagraphs for tensors with dynamic shapes. + """ + + def get_input_node_symbols( + node: Union[ir.IRNode, sympy.Expr, ir.TorchBindObject], + ) -> OrderedSet[sympy.Symbol]: + """ + Gets symbols used in input node shapes, strides, and offsets. + """ + if isinstance(node, ir.TorchBindObject): + # TorchBindObject does not involve dynamic shapes yet + return OrderedSet() + elif isinstance(node, ir.IRNode): + return get_layout_symints(node) + else: + # node cannot be sympy.Expr since node comes from read_writes and + # read_writes does not contain sympy.Expr + raise NotImplementedError(f"Unsupported input node type: {type(node)}") + + def filter_symbols( + symbols: OrderedSet[sympy.Symbol], + ) -> OrderedSet[sympy.Symbol]: + """ + Filters a set of symbols that are required for codegen. Skip symbols + that are always internal to kernels, such as SymT.TMP, SymT.INDEX, + and SymT.R0_INDEX. + """ + return OrderedSet( + s + for s in symbols + if symbol_is_type( + s, + ( + SymT.SIZE, + SymT.FLOAT, + SymT.UNBACKED_INT, + SymT.UNBACKED_FLOAT, + ), + ) + ) + + candidate_symbols: OrderedSet[sympy.Symbol] = OrderedSet().union( + *(get_scheduler_node_symbol_uses(node) for node in partition) + ) + candidate_symbols.union( + *(get_input_node_symbols(node) for _, node in input_nodes.items()) + ) + + candidate_symbols = filter_symbols(candidate_symbols) + + res: OrderedSet[sympy.Symbol] = OrderedSet() + for s in candidate_symbols: + symplified_s = V.graph.sizevars.simplify(s) + # use free_symbols only when s is simplified to an Integer or expr + res.update(symplified_s.free_symbols) + + return OrderedSet(sorted(res, key=operator.attrgetter("name"))) + + def get_graph_partition_signature( + self, partitions: list[PartitionType], skip_cudagraphs: list[bool] + ) -> list[GraphPartitionSignature]: + """ + Gets signature for each graph partition, including input nodes, output nodes, and + whether deallocating an input within graph partition. + """ + signatures = [] + + unmet_output_names = OrderedSet(V.graph.get_output_names()) + name_to_node = self.get_name_to_nodes() + + def is_unallocated_buffer(buf_name: str) -> bool: + """ + Checks if buf_name resolves to a NoneLayout buffer (following mutation_real_name). + Buffers with NoneLayout are not allocated so graph partition should not + take them as inputs or outputs. + """ + buf = self.name_to_buf.get(buf_name, None) + + if buf is None: + return False + + if isinstance(buf.node.layout, NoneLayout): + # If there's a mutation real name, check the underlying buffer + # This handles both MutationOutput and other mutation ops like + # IndexPutFallback that have NoneLayout but mutate real buffers + if real_name := self.mutation_real_name.get(buf_name, None): + return is_unallocated_buffer(real_name) + + return True + + return False + + for partition, skip_cudagraph in zip( + reversed(partitions), reversed(skip_cudagraphs) + ): + output_names: OrderedSet[str] = OrderedSet() + + for node in partition: + output_names.update(node.outputs_by_name.keys()) + + returned_output_names = output_names.intersection(unmet_output_names) + + # all reads/writes are partition inputs except those generated + # within the partition and tensor constants + read_writes = dependencies.ReadWrites.merge_list( + [node.read_writes for node in partition] + ) + + # WeakDep is fake dependency on unused buffer. It should not appear + # in partition_input_names for inputs that are actually read or written. + partition_input_names = ( + OrderedSet( + [ + x.name + for x in read_writes.reads | read_writes.writes + if not isinstance(x, WeakDep) + ] + ) + - output_names + ) + + partition_input_names = OrderedSet( + self.mutation_real_name.get(name, name) + for name in partition_input_names + ) + + buffer_names_to_free: OrderedSet[str] = OrderedSet() + for node in partition: + buffer_names_to_free.update(node.last_usage) + + # buffer_names_to_free may contain buffers allocated in previous + # graph partitions. These buffers should also be a partition + # input. + extra_input_names = [ + name + for name in (buffer_names_to_free - output_names) + if name in name_to_node + ] + partition_input_names.update(extra_input_names) + + input_nodes = { + name: name_to_node[name] + for name in partition_input_names + if name in name_to_node + } + input_deallocation = { + name: name in buffer_names_to_free + for name in partition_input_names + if name in name_to_node + } + + # if an input tensor is not freed in the partition function, it should + # also be returned as an output. This brings benefits to cudagraph + # since the returned output tensor is a cudagraph managed tensor with + # a static tensor address. + extra_output_names = [ + name + for name in partition_input_names + if name in name_to_node and name not in buffer_names_to_free + ] + + returned_output_names.update(extra_output_names) + + returned_output_names = OrderedSet( + self.mutation_real_name.get(name, name) + for name in returned_output_names + ) + + output_nodes = [ + name_to_node[name] + for name in returned_output_names + if not is_unallocated_buffer(name) + ] + + constant_names = [ + name for name in partition_input_names if name in V.graph.constants + ] + + symbol_inputs = self.get_graph_partition_symbol_inputs( + partition, input_nodes + ) + + partition_signature = GraphPartitionSignature( + symbol_inputs, + input_nodes, + output_nodes, + input_deallocation, + skip_cudagraph, + constant_names, + ) + + signatures.append(partition_signature) + + unmet_output_names = partition_input_names.union( + # pyrefly: ignore [unsupported-operation] + unmet_output_names - returned_output_names + ) + + return signatures[::-1] + + def clean_removed_buffer_from_partition_signatures( + self, signature: GraphPartitionSignature + ) -> GraphPartitionSignature: + """ + Updates the partition signature by removing buffers specified in + V.graph.removed_buffers. See [Note: Removed Graph Partition Arguments] + """ + input_nodes = { + name: buffer + for name, buffer in signature.input_nodes.items() + if name not in V.graph.removed_buffers + } + input_deallocation = { + name: val + for name, val in signature.input_deallocation.items() + if name not in V.graph.removed_buffers + } + output_nodes = [ + node + for node in signature.output_nodes + if node.maybe_get_name() not in V.graph.removed_buffers + ] + constant_names = [ + name + for name in signature.constant_names + if name not in V.graph.removed_buffers + ] + return GraphPartitionSignature( + signature.symbol_inputs, + input_nodes, + output_nodes, + input_deallocation, + signature.skip_cudagraph, + constant_names, + ) + + def reorder_for_minimizing_partition( + self, + nodes: list[BaseSchedulerNode], + ) -> list[BaseSchedulerNode]: + """ + Reorder nodes to minimize the number of partitions via a bfs + topological sort. This is the optimal reordering such that the + number of partitions cannot be reduced further. This may be + sub-optimal for other metrics such as peak memory. This does not + change relative orders of two cudagraphable nodes, nor the + relative order of two non_cudagraphable nodes. + """ + import heapq + + node_to_indegree: dict[BaseSchedulerNode, int] = dict() + cudagraphable_nodes: list[tuple[int, BaseSchedulerNode]] = [] + non_cudagraphable_nodes: list[tuple[int, BaseSchedulerNode]] = [] + node_to_index = {node: idx for idx, node in enumerate(nodes)} + + def insert_pending_nodes(node: BaseSchedulerNode) -> None: + node_with_index = (node_to_index[node], node) + if self.should_partition(node): + heapq.heappush(non_cudagraphable_nodes, node_with_index) + else: + heapq.heappush(cudagraphable_nodes, node_with_index) + + def update_indegree(node: BaseSchedulerNode) -> None: + for succ_node in node.mpi_node.succ_nodes: + assert node_to_indegree[succ_node] > 0 + node_to_indegree[succ_node] -= 1 + if node_to_indegree[succ_node] == 0: + insert_pending_nodes(succ_node) + + for node in nodes: + node_to_indegree[node] = len(node.mpi_node.pred_nodes) + if node_to_indegree[node] == 0: + insert_pending_nodes(node) + + schedule: list[BaseSchedulerNode] = [] + num_iters: int = 0 + while num_iters < len(nodes) and ( + non_cudagraphable_nodes or cudagraphable_nodes + ): + while non_cudagraphable_nodes: + _, node = heapq.heappop(non_cudagraphable_nodes) + schedule.append(node) + update_indegree(node) + + while cudagraphable_nodes: + _, node = heapq.heappop(cudagraphable_nodes) + schedule.append(node) + update_indegree(node) + + num_iters += 1 + + if num_iters > len(nodes): + raise RuntimeError( + """ + Failed to schedule, while loop ran too long when + reordering for minimizing the num of partitions + """ + ) + + return schedule + + def maybe_reorder_for_minimizing_partition( + self, + nodes: list[BaseSchedulerNode], + ) -> list[BaseSchedulerNode]: + """ + Reorder nodes to minimize the number of partitions if this only slightly + increase peak memory. + """ + from .memory import estimate_peak_memory, prepare_planning_info + + graph_outputs = OrderedSet(V.graph.get_output_names()) + + default_peak_memory, name_to_freeable_input_buf = prepare_planning_info( + nodes, + self.name_to_buf, + self.name_to_fused_node, + OrderedSet(V.graph.graph_inputs.keys()), + graph_outputs, + ) + + reordered_nodes = self.reorder_for_minimizing_partition(nodes) + reorder_peak_memory, _ = estimate_peak_memory( + reordered_nodes, name_to_freeable_input_buf, graph_outputs + ) + + # 1.1 here means 10% extra peak memory budget which is quite arbitrary + if reorder_peak_memory < default_peak_memory * 1.1: + return reordered_nodes + + return nodes + + def reorder_for_partition_with_simple_dependency( + self, nodes: list[BaseSchedulerNode] + ) -> list[BaseSchedulerNode]: + """ + Reorder a node if it should be partitioned and has simple dependency: + 1. move a partitioned node to the front if it has no dependency + 2. move a partitioned node to the back if it is only used by OutputNode + 3. otherwise do not reorder + """ + + front: list[BaseSchedulerNode] = [] + middle: list[BaseSchedulerNode] = [] + back: list[BaseSchedulerNode] = [] + + def only_output_user(node: BaseSchedulerNode) -> bool: + for buf in node.get_outputs(): + for use in buf.users: + if not isinstance(use.node, OutputNode): + return False + return True + + for node in nodes: + should_partition = self.should_partition(node) + if should_partition and len(node.unmet_dependencies) == 0: + front.append(node) + elif should_partition and only_output_user(node): + back.append(node) + else: + middle.append(node) + + return front + middle + back + + def graph_partition( + self, + ) -> tuple[list[PartitionType], list[GraphPartitionSignature]]: + """ + Given a list of BaseSchedulerNodes, split into a list of + graph partitions and compute partition input/output signatures. + """ + partitions: list[PartitionType] = [] + skip_cudagraph = True + cur_partition: PartitionType = [] + skip_cudagraphs = [] + for node in self.nodes: + should_partition = self.should_partition(node, should_log=True) + if cur_partition and skip_cudagraph != should_partition: + partitions.append(cur_partition) + skip_cudagraphs.append(skip_cudagraph) + cur_partition = [] + + skip_cudagraph = should_partition + cur_partition.append(node) + + if cur_partition: + partitions.append(cur_partition) + skip_cudagraphs.append(skip_cudagraph) + + signatures = self.get_graph_partition_signature( + partitions=partitions, skip_cudagraphs=skip_cudagraphs + ) + self.compute_graph_partition_maps(signatures) + + return partitions, signatures + + def codegen(self) -> None: + with dynamo_timed("Scheduler.codegen"): + return ( + self._codegen_partitions() + if torch._inductor.config.graph_partition + else self._codegen(self.nodes) + ) + + def _codegen_partition_wrapper( + self, + partition: PartitionType, + signature: GraphPartitionSignature, + ) -> None: + """Codegen a partition given its inputs/outputs""" + from .codegen.wrapper import SubgraphPythonWrapperCodegen + + parent_wrapper_code = V.graph.wrapper_code + graph_partition_id = next(self._graph_partition_counter) + + with V.graph.set_current_wrapper_code(): + V.graph.init_wrapper_code( + is_subgraph=True, + subgraph_name=f"partition_{graph_partition_id}", + parent_wrapper_code=parent_wrapper_code, + partition_signatures=signature, + ) + self._codegen(partition) + + # Note: [Removed Graph Partition Arguments] + # Graph partition relies on node.read_writes to analyze the partition + # inputs and outputs. However, during codegen, we may decide some buffers + # are internal to a kernel (e.g., triton kernel) such that these buffers + # are never actually defined. This information is collected during codegen + # and recorded in V.graph.removed_buffers. So we cleanup signature and write + # prefix (i.e., generating call function and return outputs) after we have + # codegen the partition. + assert isinstance(V.graph.wrapper_code, SubgraphPythonWrapperCodegen) + signature = self.clean_removed_buffer_from_partition_signatures(signature) + V.graph.wrapper_code.partition_signatures = signature + V.graph.wrapper_code.write_prefix() + + graph_name = V.graph.name + partition_code, _ = V.graph.wrapper_code.generate(V.graph.is_inference) + + V.graph.wrapper_code.define_subgraph_launcher_fn(graph_name, partition_code) + + V.graph.wrapper_code.codegen_partition_call(graph_partition_id, signature) + V.graph.wrapper_code.allocated.update( # type: ignore[has-type] + [node.get_name() for node in signature.output_nodes] + ) + + def use_default_device_context( + self, partitions: list[PartitionType], signatures: list[GraphPartitionSignature] + ) -> contextlib.AbstractContextManager[None]: + @contextlib.contextmanager + def ctx() -> Iterator[None]: + self.update_graph_partition_default_device(partitions, signatures) + if self.default_device_context and device_need_guard( + self.default_device_context.type + ): + assert self.default_device_context.index is not None, ( + "device should have an index" + ) + V.graph.wrapper_code.codegen_device_guard_enter( + self.default_device_context.index + ) + + try: + yield + finally: + if self.default_device_context and device_need_guard( + self.default_device_context.type + ): + V.graph.wrapper_code.codegen_device_guard_exit() + self.default_device_context = None + + return ctx() + + def update_graph_partition_default_device( + self, partitions: list[PartitionType], signatures: list[GraphPartitionSignature] + ) -> None: + # Note: [Graph Partition Device Contexts] + # Entering a device context takes 60 microseconds and exiting a device + # context takes 20 microseconds. If all graph partitions and + # cudagraph-unsafe ops happen on the same device, we can share the + # device context. + + if len(partitions) == 1 and not signatures[0].skip_cudagraph: + # If there is only 1 cudagraph partition, the device context + # should happen within the cudagraph partition, which + # would be removed by cudagraph. + return + + def get_cudagraph_partition_device(partition: PartitionType) -> torch.device: + partition_device = partition[0].get_device() + assert partition_device is not None + return partition_device + + def all_on_target_device( + partition: PartitionType, target_device: torch.device + ) -> bool: + for node in partition: + device = node.get_device() + if device != target_device: + return False + return True + + cudagraph_partition_device = None + for partition, signature in zip(partitions, signatures): + if not signature.skip_cudagraph: + cudagraph_partition_device = get_cudagraph_partition_device(partition) + break + + # all partitions skip cudagraph + if cudagraph_partition_device is None: + return + + for partition, signature in zip(partitions, signatures): + if signature.skip_cudagraph and not all_on_target_device( + partition, cudagraph_partition_device + ): + return + + self.default_device_context = cudagraph_partition_device + + def _codegen_partitions(self) -> None: + """ + Split nodes into partitions and codegen each partition into separate functions. + This allows further applying different optimizations (e.g., cudagraph) to + each function. + """ + partitions, signatures = self.graph_partition() + + if len(partitions) > 1: + msg = f"cudagraph partition into {len(partitions)} partitions" + maybe_log_cudagraph_partition(msg=msg, prefix="") + counters["inductor"]["cudagraph_partitions"] += len(partitions) + + with self.use_default_device_context(partitions, signatures): + for partition, signature in zip(partitions, signatures): + assert len(partition) >= 1, ( + f"Each partition must have at least one node but found {len(partition)}" + ) + + if signature.skip_cudagraph: + self._codegen(partition) + else: + self._codegen_partition_wrapper(partition, signature) + + num_partitions = next(self._graph_partition_counter) + V.graph.wrapper_code.set_all_partition_names(num_partitions) + + # See [Note: Graph Partition Map for CUDAGraph] + if num_partitions > 0: + assert V.graph.partition_maps is not None + assert num_partitions == len(V.graph.partition_maps), ( + f"Expect {num_partitions} partition maps but got {len(V.graph.partition_maps)}" + ) + + def _codegen(self, nodes: list[BaseSchedulerNode]) -> None: + if config.check_stack_no_cycles_TESTING_ONLY: + import torch._dynamo.convert_frame + + stack = traceback.extract_stack() + seen: OrderedSet[tuple[str, int | None]] = OrderedSet() + for frame in reversed(stack): + # This is where maybe_cprofile is + if ( + frame.name == "_compile_inner" + and frame.filename == torch._dynamo.convert_frame.__file__ + ): + break + key = (frame.filename, frame.lineno) + assert key not in seen, ( + f"Duplicate stack frame {frame.filename}:{frame.lineno}; " + "did you add a decorator to one of the functions in this stack " + "trace? If so, try using a context manager instead." + ) + seen.add(key) + + self.current_device = self.default_device_context + + # pyrefly: ignore [unbound-name] + if self.default_device_context and config.triton.autotune_at_compile_time: + V.graph.wrapper_code.write_get_raw_stream_header() + + for node in nodes: + if log.isEnabledFor(logging.DEBUG): + try: + log.debug( + "Generating code for node %s with estimated runtime %f", + node.get_name(), + node.get_estimated_runtime(), + ) + except Exception: + log.debug( + "Generating code for node %s with estimated runtime 0.0", + node.get_name(), + ) + + self.enter_context(node) + + if device := node.get_device(): + if ( + device != self.current_device + or node.is_extern() + or node.is_template() + ): + self.flush() + if device != self.current_device: + if self.current_device and device_need_guard( + self.current_device.type + ): + V.graph.wrapper_code.codegen_device_guard_exit() + self.current_device = device + if device_need_guard(device.type): + assert device.index is not None, "device should have an index" + V.graph.wrapper_code.codegen_device_guard_enter(device.index) + + self.current_node = node + self.buffer_names_to_free.update(node.last_usage) + + if node.is_template(): + prologue, template_node, epilogue = node.get_prologue_template_epilogue( + list(node.get_nodes()) + ) + # pyrefly: ignore [unbound-name] + self.get_backend(device).codegen_template( + template_node, epilogue, prologue + ) + elif node.is_extern(): + node = typing.cast(ExternKernelSchedulerNode, node) + self.codegen_extern_call(node) + elif node.is_foreach(): + node = typing.cast(ForeachKernelSchedulerNode, node) + # pyrefly: ignore [unbound-name] + backend_ = self.get_backend(device) + from .codegen.cuda_combined_scheduling import CUDACombinedScheduling + from .codegen.simd import SIMDScheduling + + if isinstance(backend_, (SIMDScheduling, CUDACombinedScheduling)): + backend = backend_ + else: + raise AssertionError(f"{type(self)=}") + backend.codegen_combo_kernel(node) + elif isinstance(node, FusedMixOrderReductions): + # pyrefly: ignore [unbound-name] + self.get_backend(device).codegen_mix_order_reduction(node) + elif isinstance(node, (FusedSchedulerNode, SchedulerNode)): + # pyrefly: ignore [unbound-name] + self.get_backend(device).codegen_node(node) + else: + assert isinstance(node, NopKernelSchedulerNode) + node.mark_run() + + # pyrefly: ignore [unbound-name] + if config.triton.debug_sync_kernel: + # pyrefly: ignore [unbound-name] + self.get_backend(device).codegen_sync() + + self.available_buffer_names.update(node.get_buffer_names()) + self.completed_operations.update(node.get_operation_names()) + + if not isinstance(node, NopKernelSchedulerNode): + device = node.get_device() + if ( + device is not None + and device.type != "meta" + and self.get_backend(device).ready_to_flush() + ): + self.flush() + + if self.current_device != self.default_device_context: + # when default_device_context is not None, we are codegen + # for graph partitions and all nodes must be on + # the same default device. + assert self.current_device is not None + if device_need_guard(self.current_device.type): + # exit the outermost CUDA device guard. this is + # important for nested indentation codegen-ing. + V.graph.wrapper_code.codegen_device_guard_exit() + + self.flush() + + def benchmark_combo_kernel( + self, node_list: Sequence[BaseSchedulerNode] + ) -> tuple[float, float, list[Optional[str]]]: + """ + Benchmark fused list of nodes and return the execution time + in milliseconds on randomly generated inputs. + """ + device = node_list[0].get_device() + V.graph.scheduler = self + self.current_device = device + assert device is not None + backend = self.get_backend(device) + return backend.benchmark_combo_kernel(node_list) + + def speedup_by_combo_kernel(self, nodes: list[BaseSchedulerNode]) -> bool: + """ + If config.benchmark_fusion is False, always return True. + Otherwise, return True if fusion can brings speedup. + """ + + subkernel_nodes = nodes + device = subkernel_nodes[0].get_device() + + assert all(node.get_device() == device for node in subkernel_nodes), ( + "All nodes in a combo kernel group must be on the same device" + ) + + if not config.benchmark_combo_kernel: + return True + + from triton.compiler.errors import CompilationError + + ms1, path1_list = 0.0, [] + for i, snode in enumerate(subkernel_nodes): + node_list = snode.get_nodes() + # We can not accurately benchmark kernel using atomic_add + # due to how we generate random integer inputs. + if self._any_atomic_add(node_list): + fusion_log.debug( + "ComboKernel: benchmarking may not accurate due to atomic_add" + ) + + try: + ms, path = self.benchmark_fused_nodes(node_list) + if math.isinf(ms): + fusion_log.debug( + "ComboKernel benchmark: register spilling of %d-th subkernel", + i, + ) + return False + except CompilationError as e: + # workaround triton issue: https://github.com/triton-lang/triton/issues/2151 + if "Loop-carried variable" in str(e): + fusion_log.debug( + "ComboKernel benchmark: return True because of loop-carried variable" + ) + return True # allow fusion + else: + raise + ms1 += ms + path1_list.append(path) + + try: + ms2, ms2_clone, _path2_list = self.benchmark_combo_kernel(subkernel_nodes) + except CompilationError as e: + # workaround triton issue: https://github.com/triton-lang/triton/issues/2151 + if "Loop-carried variable" in str(e): + fusion_log.debug( + "ComboKernel benchmark: return True because of loop-carried variable" + ) + return True # allow fusion + else: + raise + + # small kernels are very likely to have speedup but hard to benchmark. So we skip benchmarking. + small_kernel = ms2 - ms2_clone < 0.3 or ms1 < 0.3 + if fusion_log.isEnabledFor(logging.DEBUG): + if ms1 > ms2 or small_kernel: + fusion_log.debug( + "can fuse (benchmark): fusing causes %sx speedup", + green_text(f"{ms1 / ms2:.3f}"), + ) + else: + fusion_log.debug( + "cannot fuse (benchmark): fusing causes %sx slowdown", + red_text(f"{ms1 / ms2:.3f}"), + ) + # ms1 returned by benchmark_fused_nodes discounted clone time + return ms2 - ms2_clone < ms1 or small_kernel + + def get_buffer_layout(self, buf_name: str) -> ir.Layout: + buf = self.name_to_buf[buf_name] + assert buf.node is not None + return buf.node.get_layout() + + def update_zero_dim_cpu_tensor(self) -> None: + for node in self.nodes: + if node.is_gpu(): + for read in node.read_writes.reads: + buffer = V.graph.name_to_buffer.get(read.name) + if ( + buffer + and get_device_type(buffer) == "cpu" + and not isinstance( + buffer.layout, (NoneLayout, MultiOutputLayout) + ) + and buffer.get_size() == [] + ): + V.graph.zero_dim_cpu_tensor_list.add(read.name) + + +class BaseScheduling: # noqa: docstring_linter + def __init__(self, scheduler: Optional[Scheduler]): + super().__init__() + self.scheduler = scheduler + + def free_buffers_in_scheduler(self) -> None: + if self.scheduler: + self.scheduler.free_buffers() + + def get_backend_features(self, device: torch.device) -> OrderedSet[BackendFeature]: + """Return a set of .codegen.common.BackendFeature()""" + return OrderedSet() + + def can_fuse_vertical( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + """ + Check whether node1 and node2 can be vertically fused or not. + """ + raise NotImplementedError + + def can_fuse_horizontal( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + """ + Check whether node1 and node2 can be horizontally fused or not. + """ + raise NotImplementedError + + def can_fuse_multi_outputs_template( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> bool: + """ + A Multi-Output Template (referenced in #144012) is a template node + with MultiOutputLayout, and its output buffers are instances of MultiOutput. + In this context, we verify whether node1 represents the Multi-Output Template + and node2 corresponds to one of its outputs. If so, we further check if + backend supports this fusion. + """ + return False + + def fuse( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> FusedSchedulerNode: + """ + Fuse two nodes + """ + if node1.is_foreach() or node2.is_foreach(): + return ForeachKernelSchedulerNode.fuse(node1, node2) + elif MixOrderReduction.are_mix_order_reductions(node1, node2): + return FusedMixOrderReductions(node1, node2) + elif isinstance(node1, FusedMixOrderReductions): + return node1.fuse_with(node2) + else: + return FusedSchedulerNode.fuse(node1, node2) + + def group_fn( + self, sizes: Sequence[Sequence[sympy.Expr]] + ) -> tuple[tuple[sympy.Expr, ...], ...]: + """ + Process the iteration sizes in case a transformation needs to be applied. + """ + raise NotImplementedError + + def codegen_template( + self, + template_node: BaseSchedulerNode, + epilogue_nodes: Sequence[BaseSchedulerNode], + prologue_nodes: Sequence[BaseSchedulerNode], + ) -> Optional[str]: + """ + Given a template node, generate a kernel. + + This function is only available for triton now. If the third-party backend behaves as a sub-class + of TritonScheduling, it can override it or reuse it. + """ + raise NotImplementedError + + def generate_kernel_code_from_nodes( + self, + nodes: Sequence[BaseSchedulerNode], + benchmark_kernel: bool, + hint_override: Optional[int] = None, + ) -> str: + """ + Generate a kernel given a list of pre-fused nodes. + """ + raise NotImplementedError + + def codegen_node(self, node: Union[FusedSchedulerNode, SchedulerNode]) -> None: + """ + Generate a kernel given a list of pre-fused nodes. + """ + raise NotImplementedError + + def codegen_mix_order_reduction(self, node: FusedMixOrderReductions) -> None: + raise NotImplementedError + + def codegen_sync(self) -> None: + """ + Generate synchronization code for the kernel. This method depends on the hardware characteristics. + """ + raise NotImplementedError + + def ready_to_flush(self) -> bool: + """ + Check whether the backend is requesting the scheduler to flush the generated kernel. + If not supported, please return False. + """ + return False + + def flush(self) -> None: + """ + Flush the generated kernel and python wrapper code to the source code file. + """ + raise NotImplementedError + + def benchmark_fused_nodes( + self, nodes: Sequence[BaseSchedulerNode] + ) -> tuple[float, str]: + """ + Benchmark fused list of nodes and return the execution time + in milliseconds on randomly generated inputs. + """ + raise NotImplementedError + + def benchmark_codegened_module(self, module: ModuleType) -> tuple[float, str]: + """ + Benchmark a compiled module and return the execution time + in milliseconds on randomly generated inputs. + """ + raise NotImplementedError + + def get_fusion_pair_priority( + self, node1: BaseSchedulerNode, node2: BaseSchedulerNode + ) -> int: + """ + Return an unsigned integer which represents the priority of this fusion pair. + The smaller is with higher priority. + """ + return 0 + + def benchmark_combo_kernel( + self, node_list: Sequence[BaseSchedulerNode] + ) -> tuple[float, float, list[Optional[str]]]: + """ + Benchmark the list of nodes to combine and return the execution time + and memory copy time in milliseconds on randomly generated inputs. + """ + raise NotImplementedError + + def codegen_comment( + self, + node_schedule: Sequence[BaseSchedulerNode], + kernel_name: Optional[str] = None, + ) -> None: + if kernel_name: + from torch._inductor.debug import set_kernel_post_grad_provenance_tracing + + debug_handle = set_kernel_post_grad_provenance_tracing( + node_schedule, # type: ignore[arg-type] + kernel_name, + ) + V.graph.wrapper_code.write_provenance_debug_handle( + kernel_name, debug_handle + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/script.ld b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/script.ld new file mode 100644 index 0000000000000000000000000000000000000000..5a052e984fcd720526201aa93d6d13b0aba2107a --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/script.ld @@ -0,0 +1,8 @@ +SECTIONS { + /* By default, in LLD 16, .lrodata is placed immediately after .rodata. + * However, .lrodata can be very large in our compiled models, which leads to + * relocation out-of-range errors for relative relocations. So we place it + * after other the sections that are referenced from .text using relative + * relocations. This is the default behavior in GNU ld. */ + .lrodata : { *(.lrodata) } + } INSERT AFTER .bss; diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/select_algorithm.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/select_algorithm.py new file mode 100644 index 0000000000000000000000000000000000000000..a54fb2263ec8387d3c9c9cb8cdf58bc82e89184c --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/select_algorithm.py @@ -0,0 +1,4557 @@ +# mypy: allow-untyped-defs +import contextlib +import dataclasses +import functools +import hashlib +import inspect +import itertools +import json +import logging +import math +import operator +import os +import re +import sys +import textwrap +import time +from collections.abc import Callable, Sequence +from concurrent.futures import as_completed, ThreadPoolExecutor +from io import StringIO +from pathlib import Path +from types import ModuleType +from typing import Any, NamedTuple, Optional, TYPE_CHECKING, Union +from typing_extensions import Self +from unittest.mock import patch + +import sympy + +import torch +import torch._inductor.async_compile # noqa: F401 required to warm up AsyncCompile pools +from torch._dynamo.device_interface import get_interface_for_device +from torch._dynamo.testing import rand_strided +from torch._dynamo.utils import ( + counters, + dynamo_timed, + get_chromium_event_logger, + identity, + preserve_rng_state, +) +from torch._inductor.await_utils import await_sync +from torch._inductor.utils import clear_on_fresh_cache +from torch.utils._filelock import FileLock +from torch.utils._ordered_set import OrderedSet + +from ..utils._sympy.functions import CeilDiv +from . import config, ir +from .autotune_process import ( + TensorMeta, + TritonBenchmarkRequest, + TritonCPUBenchmarkRequest, + TritonGPUBenchmarkRequest, +) +from .codecache import code_hash, PersistentCache, PyCodeCache +from .codegen.common import ( + CSEVariable, + IndentedBuffer, + KernelTemplate, + OpOverrides, + WorkspaceArg, + WorkspaceZeroMode, +) +from .codegen.simd_kernel_features import SIMDKernelFeatures +from .codegen.subgraph import SubgraphChoiceCaller +from .codegen.triton import ( + gen_common_triton_imports, + texpr, + TMACompatibilityChecker, + TritonKernel, + TritonScheduling, +) +from .codegen.triton_utils import config_of, equal_1_arg_indices, signature_to_meta +from .codegen.wrapper import pexpr +from .exc import CUDACompileError +from .fx_utils import count_flops_fx +from .ir import ChoiceCaller, PrimitiveInfoType +from .ops_handler import StoreMode +from .runtime.hints import DeviceProperties +from .runtime.triton_compat import HAS_WARP_SPEC +from .runtime.triton_heuristics import FixedGrid +from .utils import ( + ceildiv, + do_bench_using_profiling, + FakeIndentedBuffer, + get_dtype_size, + is_gpu, + Placeholder, + restore_stdout_stderr, + sympy_dot, + sympy_index_symbol, + sympy_product, + triton_type, + triton_type_to_torch, + unique, +) +from .virtualized import V + + +log = logging.getLogger(__name__) + +# correctness checks struggle with fp16/tf32 +VERIFY: dict[str, Any] = {} +PRINT_AUTOTUNE = True +DEBUG = False + + +if TYPE_CHECKING: + import concurrent + + from torch._inductor.autotune_process import BenchmarkRequest + from torch._inductor.codegen.simd import IterationRangesEntry, IterationRangesRoot + + from .codegen.common import CSE + + +class KernelNamespace: + pass + + +# these objects are imported from the generated wrapper code +extern_kernels = KernelNamespace() + + +@dataclasses.dataclass +class BenchmarkTensors: + """Represents a set of inputs and outputs for autotuning with a template""" + + input_tensors: list[torch.Tensor] + output_tensor: Optional[torch.Tensor] + + def unpack(self): + return self.input_tensors, self.output_tensor + + +@dataclasses.dataclass +class AutotuneArgs: + """During autotuning, we need to pass the same inputs to all choices. + Note: + Since we typically have a mix of external choices and triton choices, we create + two lists of inputs for the same underlying buffers: + - External inputs (for aten kernels): Include offset for sliced tensors + - Triton inputs: Use base pointer for sliced tensors, without offset + """ + + triton: BenchmarkTensors + extern: BenchmarkTensors + expected: Optional[torch.Tensor] = None + + def get_benchmark_tensors(self, extern=False) -> BenchmarkTensors: + """Returns the inputs and output tensors for a given choice.""" + bench_tensors = self.extern if extern else self.triton + return bench_tensors + + @classmethod + def from_choice_args( + cls, + example_inputs: list[torch.Tensor], + example_inputs_extern: list[torch.Tensor], + out: torch.Tensor, + out_extern: torch.Tensor, + expected: Optional[torch.Tensor] = None, + ) -> Self: + """Factory method to create AutotuneInputs from separate inputs/outputs""" + return cls( + triton=BenchmarkTensors(example_inputs, out), + extern=BenchmarkTensors(example_inputs_extern, out_extern), + expected=expected, + ) + + def verify(self, **kwargs): + """Verify the correctness of the benchmarking results""" + + torch.testing.assert_close(self.extern.output_tensor, self.expected, **kwargs) + + +class PartialRender: + """ + Some parts of a template need to be generated at the end, but + inserted into the template at the start. This allows doing a bunch + of replacements after the initial render. + """ + + HookFn = Callable[[], str] + + def __init__( + self, code: str, replacement_hooks: dict[str, Optional[HookFn]] + ) -> None: + super().__init__() + self._code: str = code + self.replacement_hooks: dict[str, Optional[PartialRender.HookFn]] = ( + replacement_hooks + ) + + @property + def code(self) -> str: + """ + The fully rendered code. Will **error** if any hooks have yet to be + finalized. + """ + remaining_active_hooks = [ + key for key, fn in self.replacement_hooks.items() if fn is not None + ] + assert len(remaining_active_hooks) == 0, ( + f"The following hooks have not yet been finalized:\n {remaining_active_hooks=}" + ) + return self._code + + def finalize_hook(self, hook_key: str, strict: bool = True) -> None: + """ + Finalize a hook by name. + + :param strict: If ``True``, raise an error if the hook wasn't found. + + NOTE: Will **error** if the hook has already been finalized. + """ + if hook_key not in self.replacement_hooks: + if strict: + raise RuntimeError( + f"{hook_key} not registered in self.replacement_hooks" + ) + else: + return + + hook = self.replacement_hooks[hook_key] + assert hook is not None, f"Hook key {hook_key} can only be called once" + self._code = self._code.replace(hook_key, hook()) + + self.replacement_hooks[hook_key] = None + + def finalize_remaining(self) -> str: + """ + Finalize the remaining active hooks. This function can be used in cases + where the caller uses `finalize_hook` rather than `finalize_all`. + Note: `finalize_all` errors if a hook that has already been finalized + is attempted to be called again. This function only attempts to + finalize active hooks. + """ + for key, fn in self.replacement_hooks.items(): + if fn is not None: + self.finalize_hook(key) + return self.code + + def finalize_all(self) -> str: + """ + Finalize all active hooks. + + NOTE: unlike ``finalize_remaining``, this method will **error** if any + hook has already been finalized. + """ + for key in self.replacement_hooks: + self.finalize_hook(key) + return self.code + + +# This is used to store info needed for lowering each subgraph in triton +# templates + + +@dataclasses.dataclass() +class SubgraphInfo: + body: IndentedBuffer + template_mask: Optional[str] = None + template_out_shape: Optional[Union[str, tuple[str]]] = None + compute: IndentedBuffer = dataclasses.field(default_factory=IndentedBuffer) + indexing_code: IndentedBuffer = dataclasses.field(default_factory=IndentedBuffer) + loads: IndentedBuffer = dataclasses.field(default_factory=IndentedBuffer) + stores: IndentedBuffer = dataclasses.field(default_factory=IndentedBuffer) + ops_handler: Optional[V.WrapperHandler] = None # type: ignore[name-defined] + cse: Optional["CSE[Any]"] = None + + # only copied over if not None + range_trees: Optional[list["IterationRangesRoot"]] = None + range_tree_nodes: Optional[dict[sympy.Symbol, "IterationRangesEntry"]] = None + numels: Optional[dict[str, sympy.Expr]] = None + + def __post_init__(self): + self.only_copy_if_non_none_fields = ( + "range_trees", + "range_tree_nodes", + "numels", + "cse", + ) + + def to_dict(self): + return { + field.name: getattr(self, field.name) for field in dataclasses.fields(self) + } + + +class ModificationWrapper(V.WrapperHandler): # type: ignore[name-defined] + """Handles placeholder substitutions during subgraph processing.""" + + def __init__( + self, + kernel, + subgraph_number: int, + fixed_inputs: dict[str, Any], + mask: Optional[str], + ): + super().__init__(V.ops) + self.name = f"PlaceholderSubstitution_{subgraph_number}" + self.kernel = kernel + self.fixed_inputs = fixed_inputs + self.mask = mask + + def load(self, name: str, index: sympy.Expr): + """Handle loading from tensor or fixed input.""" + if name not in self.fixed_inputs: + index_str = self._process_indexing(index) + var = self._add_kernel_input(name) + buffer = V.graph.get_buffer(name) + var_dtype = buffer.dtype + line = f"tl.load({var} + {index_str})" + + if ( + var_dtype in (torch.float16, torch.bfloat16) + and config.triton.codegen_upcast_to_fp32 + ): + line += ".to(tl.float32)" + var_dtype = torch.float32 + + out = self.kernel.cse.generate( + self.kernel.compute, line, dtype=var_dtype, shape=() + ) + return out + + return self.kernel.cse.generate( + self.kernel.compute, + f"({self.fixed_inputs[name]})", + dtype=torch.float32, + shape=(), + ) + + def indirect_indexing(self, index_var: str, size, check, wrap_neg=True): + """Convert index variable to symbolic form.""" + return sympy_index_symbol(str(index_var)) + + # pyrefly: ignore [bad-override] + def store( + self, name: str, index: sympy.Expr, value: CSEVariable, mode: StoreMode = None + ) -> str: + """Currently only supports stores for atomic adds coming from scatter nodes + This is used by flex_attention's backwards grad for captured buffers, see + zeros_and_scatter lowering + """ + assert self.mask is not None, ( + "Mask is required for inner stores in modifications" + ) + assert mode == "atomic_add", "Only atomic_add is supported for inner stores" + + buf_name = self._add_kernel_input(name) + index_str = self._process_indexing(index) + index_str = f"tl.broadcast_to({index_str}, {value}.shape)" + store = f"tl.atomic_add({buf_name} + {index_str}, {value}, {self.mask}, sem='relaxed')" + return store + + def _add_kernel_input(self, name: str): + """Add name as input to kernel and return input ref.""" + return self.kernel.args.input(name) + + def _process_indexing(self, index): + """Process and rename indexing, adding symbols as kernel inputs.""" + return self.kernel.kexpr(self.kernel.rename_indexing(index)) + + +# Function name, followed by args and kwargs. +RecordedEventsType = list[tuple[str, list[Any], dict[str, Any]]] + + +class TritonTemplateKernel(TritonKernel): + """ + A specialized kernel class for Triton templates that handles code generation + for templated Triton kernels. + + This class extends TritonKernel to provide additional functionality for + template-based kernel generation, including support for subgraphs, workspace + arguments, and prologue/epilogue fusion. + """ + + def __init__( + self, + kernel_name, + input_nodes: tuple[ir.IRNode, ...], + output_node, + defines, + num_stages, + num_warps, + grid_fn, + meta, + call_sizes, + num_consumer_groups=0, + num_buffers_warp_spec=0, + use_jit=False, + tma_store=False, + transpose_discontiguous_tensor_descriptors_override=None, + prefix_args=0, + suffix_args=0, + epilogue_fn=identity, + subgraphs: Optional[list[ir.ComputedBuffer]] = None, + workspace_arg: Optional[WorkspaceArg] = None, + prologue_loads_all_inputs=False, + hint_override: Optional[int] = None, + ) -> None: + if tma_store: + pass + numel = sympy_product(output_node.get_size()) + if tma_store: + assert len(output_node.get_size()) == 2, ( + "TMA store only supported for 2D with templates" + ) + tiling = { + "x": output_node.get_size()[0], + "y": output_node.get_size()[1], + "r0_": sympy.S.One, + } + else: + tiling = { + "x": numel, + "r0_": sympy.S.One, + } + super().__init__( + tiling, + features=SIMDKernelFeatures([], numel), + hint_override=hint_override, + ) + if tma_store: + # By default `construct_range_trees` will return the range_trees in the order + # ["z", "y", "x", "r0_", "r1_"] (see simd.py:all_prefixes) + # and this order defines what the kernel block shape will be. So if the template + # input / output has requested e.g. ["x", "y"], `construct_range_trees` will still return the + # trees in the order ["y", "x"]. This would mean that the template would need to transpose + # the loaded value. + # The below sorts the range trees according to that required by the caller + prefix_to_range_tree = {rt.prefix: rt for rt in self.range_trees} + pw_sorted_range_trees = [] + reduction_idx = None + for i, prefix in enumerate(tiling): + rt = prefix_to_range_tree[prefix] + # pyrefly: ignore # missing-argument + if rt.is_reduction: + reduction_idx = i + break + rt.index = i + rt.grid_dim = i + rt.tensor_dim = i + pw_sorted_range_trees.append(rt) + self.range_trees = pw_sorted_range_trees + self.range_trees[reduction_idx:] + + self.input_nodes = input_nodes + self.output_node = output_node + self.named_input_nodes = {} # type: ignore[var-annotated] + self.defines = defines + self.kernel_name = kernel_name + self.use_jit = use_jit + self.tma_store = tma_store + self.transpose_discontiguous_tensor_descriptors_override = ( + transpose_discontiguous_tensor_descriptors_override + ) + self.num_stages = num_stages + self.num_warps = num_warps + self.num_consumer_groups = num_consumer_groups + self.num_buffers_warp_spec = num_buffers_warp_spec + self.grid_fn = grid_fn + self.meta = meta + self.call_sizes = call_sizes + # for templates with fixed epilogues + self.prefix_args = prefix_args + self.suffix_args = suffix_args + # pyrefly: ignore [invalid-type-var] + self.epilogue_fn = epilogue_fn + self.render_hooks = {} # type: ignore[var-annotated] + self.triton_meta: Optional[dict[str, object]] = None + # For Templated Attention this can be a list of ir.Subgraph + self.subgraphs: Optional[list[ir.ComputedBuffer]] = subgraphs + + # Some templates use extra global memory as a workspace + self.workspace_arg = workspace_arg + if workspace_arg is not None: + self.args.workspace_args.append(workspace_arg) + + # The following attributes (body, template_mask, output_val) are all + # used for triton kernel codegen. + # They are swapped onto the TritonTemplateKernel object by + # `set_subgraph_body` + self.subgraph_bodies: dict[str, SubgraphInfo] = {} + + # input buffers which we are allowed to prologue fuse into + self.prologue_supported_inputs: OrderedSet[str] = OrderedSet() + + # input buffers which we are fusing into + self.prologue_fused_inputs: OrderedSet[str] = OrderedSet() + # input buffers which we are fusing into, which preserve a zero mask + self.prologue_fused_inputs_preserve_zero: OrderedSet[str] = OrderedSet() + + # The following attributes are all used for triton kernel codegen. + # They are swapped onto the TritonTemplateKernel object by + # `set_subgraph_body` + # NB: the names here must match the fields in SubgraphInfo + self.body: IndentedBuffer = FakeIndentedBuffer() + self.compute: IndentedBuffer = FakeIndentedBuffer() + self.indexing_code: IndentedBuffer = FakeIndentedBuffer() + self.loads: IndentedBuffer = FakeIndentedBuffer() + self.stores: IndentedBuffer = FakeIndentedBuffer() + self.template_mask: Optional[str] = None + self.template_out_shape: Optional[Union[str, tuple[str]]] = None + self.ops_handler: Optional[V.WrapperHandler] = None # type: ignore[name-defined] + + # When caching is enabled, the generated code is not dependent on the input nodes names, or + # symbolic sizes names. + # However, some of the variables returned by generate_and_load that are computed during the + # triton template expansions (code generation) are dependent on those. + # In order to cache the code generation and avoid redoing it for similar inputs that varies only by + # input names or symbol names, we do a record and replay method. + # During template expansions we record all function calls that change input_dependent_preserved_state + # and replay them on a cache hit to regenerate them. + self.cached_replay_events: Optional[RecordedEventsType] = None + + # Update each time an input is marked frozen, used to replay the freezing of inputs on a cache hit. + self.frozen_layouts_cnt = 0 + + # When prologue_loads_all_inputs is true, prologue_supported_inputs is populated during def_kernel + # by adding all inputs. + self.prologue_loads_all_inputs = prologue_loads_all_inputs + + # Extra functions to be exposed during partial template rendering. + self.extra_template_env_fns: list[Callable[..., Any]] = [] + + # Tracking for intermediate variables + self.tmp_var_ctr = itertools.count() + + def _gen_tmp_var(self) -> str: + return f"_tmp_var{next(self.tmp_var_ctr)}" + + def input_dependent_preserved_state(self) -> str: + # Not adding self.args.output_buffers on purpose. But we do not need to reproduce it on a cache hit. + # (never accessed). + return repr( + [ + self.args.input_buffers, + self.args.sizevars, + self.args.workspace_args, + self.prologue_supported_inputs, + self.frozen_layouts_cnt, + ] + ) + + def record_input_dependent_tracked_event(self) -> Callable[..., Any]: + def decorator(fn) -> Callable[..., Any]: + def wrapper(*args, **kwargs) -> Any: + pre_state = self.input_dependent_preserved_state() + result = fn(*args, **kwargs) + post_state = self.input_dependent_preserved_state() + if pre_state != post_state: + assert self.cached_replay_events is not None + self.cached_replay_events.append((fn.__name__, [*args], {**kwargs})) + return result + + return wrapper + + return decorator + + def replay_cached_events(self, events: RecordedEventsType) -> None: + for f, args, kwargs in events: + getattr(self, f)(*args, **kwargs) + + @contextlib.contextmanager + def set_subgraph_body(self, body_name: str): + assert all( + hasattr(self, field.name) for field in dataclasses.fields(SubgraphInfo) + ) + old_state = { + key.name: getattr(self, key.name) + for key in dataclasses.fields(SubgraphInfo) + } + + assert body_name in self.subgraph_bodies, body_name + + subgraph = self.subgraph_bodies[body_name] + for key, value in subgraph.to_dict().items(): + if value is None and key in subgraph.only_copy_if_non_none_fields: + continue + setattr(self, key, value) + + context = ( + contextlib.nullcontext + if not self.ops_handler + # pyrefly: ignore [not-callable] + else lambda: V.set_ops_handler(self.ops_handler(V.get_ops_handler())) + ) + with context(): # type: ignore[operator] + yield + self.subgraph_bodies[body_name] = SubgraphInfo( + **{ + key.name: getattr(self, key.name) + for key in dataclasses.fields(SubgraphInfo) + } + ) + for key, value in old_state.items(): + setattr(self, key, value) + + @contextlib.contextmanager + def create_subgraph_body(self, body_name: str, clear_cse: bool = False): + assert body_name not in self.subgraph_bodies + self.subgraph_bodies[body_name] = SubgraphInfo( + IndentedBuffer(), None, None, cse=self.cse.clone() if clear_cse else None + ) + with self.set_subgraph_body(body_name): + yield + + def need_numel_args(self): + return False + + def estimate_kernel_num_bytes(self): + """ + Estimate the total number of bytes this kernel takes. + For in/out nodes, sizes are counted twice: once for reading and + once for writing. + """ + ninplace_args = len(unique(self.args.inplace_buffers.values())) + num_bytes = [] + for i, inp in enumerate(itertools.chain(self.input_nodes, (self.output_node,))): + size = V.graph.sizevars.size_hints(inp.get_size(), fallback=0) + numel = functools.reduce(operator.mul, size, 1) + dtype_size = get_dtype_size(inp.get_dtype()) + num_bytes.append(numel * dtype_size * (1 + int(i < ninplace_args))) + return sum(num_bytes) + + def estimate_flops(self) -> int: + for node in self.input_nodes: + for fx_node in node._current_origins: + f = count_flops_fx(fx_node) + if f is not None: + return V.graph.sizevars.size_hint(f, fallback=0) + return 0 + + def jit_lines(self): + if self.use_jit: + return "@triton.jit" + + argdefs, _, signature, _ = self.args.python_argdefs() + triton_meta: dict[str, Any] = { + "signature": signature_to_meta( + signature, + size_dtype=self.index_dtype, + argdefs=argdefs, + is_template=True, + ), + "device": DeviceProperties.create(self.output_node.get_device()), + "constants": {}, + } + triton_meta["configs"] = [config_of(signature)] + for arg_num in equal_1_arg_indices(signature): # type: ignore[index] + triton_meta["constants"][signature[arg_num].name] = 1 # type: ignore[index,union-attr] + matrix_instr_nonkdim = self.meta.get("matrix_instr_nonkdim", None) + waves_per_eu = self.meta.get("waves_per_eu", None) + kpack = self.meta.get("kpack", None) + if matrix_instr_nonkdim: + triton_meta["matrix_instr_nonkdim"] = matrix_instr_nonkdim + if waves_per_eu: + triton_meta["waves_per_eu"] = waves_per_eu + if kpack: + triton_meta["kpack"] = kpack + + self.triton_meta = triton_meta + + inductor_meta = { + "kernel_name": str(Placeholder.DESCRIPTIVE_NAME), + **self.inductor_meta_common(), + **FixedGrid.setup_grid_as_args(), + } + if config.profile_bandwidth or config.benchmark_kernel: + num_gb = self.estimate_kernel_num_bytes() / 1e9 + inductor_meta["kernel_num_gb"] = num_gb + if config.benchmark_kernel: + flops = self.estimate_flops() + inductor_meta["kernel_flop"] = flops + + inductor_meta["config_args"] = self.meta + + template_args = f""" + num_stages={self.num_stages}, + num_warps={self.num_warps}, + triton_meta={triton_meta!r}, + inductor_meta={inductor_meta!r}, + """ + + if HAS_WARP_SPEC: + template_args += f""" + num_consumer_groups={self.num_consumer_groups}, + num_buffers_warp_spec={self.num_buffers_warp_spec}, + """ + + return f""" + @triton_heuristics.template( + {template_args} + ) + @triton.jit + """ + + def gen_argdefs(self): + def hook(): + # python_argdefs() cannot be run until after the rest of the template lazily adds more args + arg_defs, *_ = self.args.python_argdefs() + return f"{', '.join(x.full_name() for x in arg_defs)}" + + return self._register_hook("", hook, allow_overwriting=True) + + def gen_defines(self): + return self.defines + + def def_kernel(self, *argnames): + """ + Hook called from template code to generate function def and + needed args. + """ + assert all(isinstance(x, str) for x in argnames) + renames = IndentedBuffer(initial_indent=1) + + named_args = self.input_nodes[ + self.prefix_args : len(self.input_nodes) - self.suffix_args + ] + + assert len(argnames) == len(named_args), ( + len(argnames), + len(named_args), + self.prefix_args, + len(self.input_nodes), + ) + + for input_node in self.input_nodes[: self.prefix_args]: + # get args in correct order + self.args.input(input_node.get_name()) + + for name, input_node in zip(argnames, named_args): + arg_name = f"arg_{name}" + self.named_input_nodes[name] = input_node + if input_node.get_name() in V.graph.removed_buffers: + continue + if input_node.get_name() in self.prologue_fused_inputs: + continue + + self.args.input_buffers[input_node.get_name()] = arg_name + + # The args may be duplicated, so renaming must be after args are de-duplicated. + for name in argnames: + input_node = self.named_input_nodes[name] + if self.prologue_loads_all_inputs: + self.prologue_supported_inputs.add(input_node.get_name()) + if input_node.get_name() in V.graph.removed_buffers: + continue + if input_node.get_name() in self.prologue_fused_inputs: + continue + + arg_name = self.args.input_buffers[input_node.get_name()] + if input_node.get_layout().offset == 0: + renames.writeline(f"{name} = {arg_name}") + else: + offset = texpr(self.rename_indexing(input_node.get_layout().offset)) + renames.writeline(f"{name} = {arg_name} + {offset}") + + for input_node in self.input_nodes[len(self.input_nodes) - self.suffix_args :]: + # get args in correct order + if input_node.get_name() in V.graph.removed_buffers: + continue + if input_node.get_name() in self.prologue_fused_inputs: + continue + + self.args.input(input_node.get_name()) + + def hook(): + # python_argdefs() cannot be run until after the rest of the template lazily adds more args + arg_defs, *_ = self.args.python_argdefs() + code = IndentedBuffer() + code.splice(gen_common_triton_imports()) + code.splice(self.jit_lines()) + code.writeline( + f"def {self.kernel_name}({', '.join(x.full_name() for x in arg_defs)}):" + ) + with code.indent(): + code.splice(self.defines) + code.splice(renames.getvalue()) + self.codegen_prologue(code) + return code.getvalue() + + return self._register_hook("", hook) + + def size(self, name: Optional[str], index: int): + """ + Hook called from template code to get the size of an arg. + Will add needed args to pass it in if it is dynamic. + """ + assert isinstance(index, int) + if name is None: + val = self.output_node.get_size()[index] + else: + assert isinstance(name, str) + val = self.named_input_nodes[name].get_size()[index] + return texpr(self.rename_indexing(val)) + + def stride(self, name, index=None): + """ + Hook called from template code to get the stride of an arg. + Will add needed args to pass it in if it is dynamic. + """ + if name is None: + val = self.output_node.get_stride() + else: + assert isinstance(name, str) + val = self.get_stride_and_maybe_freeze_layout(self.named_input_nodes[name]) + + if isinstance(index, int): + return texpr(self.rename_indexing(val[index])) + return ", ".join([texpr(self.rename_indexing(i)) for i in val]) + + def _get_subgraph(self, subgraph_number: int): + assert isinstance(subgraph_number, int) + assert isinstance(self.subgraphs, list) + assert subgraph_number < len(self.subgraphs), ( + f"Invalid subgraph number provided to create_modification, {subgraph_number} must be < {len(self.subgraphs)}" + ) + assert self.body.getvalue() == "", ( + "Body should be clear before adding a modification" + ) + return self.subgraphs[subgraph_number] + + def _handle_scatter_graph(self, scatter_graph): + """Handle processing for a single scatter graph. + + Args: + scatter_graph: The scatter graph to process + """ + assert isinstance(scatter_graph, ir.ComputedBuffer), ( + f"scatter_graph must be an instance of ComputeBuffer but got {type(scatter_graph)}" + ) + + def contiguous_strides(x): + # We always create a fresh contiguous grad for scattering into + return sum( + x_i * stride for x_i, stride in zip(x, scatter_graph.get_stride()) + ) + + return scatter_graph.data.store_output( # type: ignore[attr-defined] + scatter_graph.name, contiguous_strides, [] + ) + + def modification( + self, + subgraph_number: int, + output_name: Optional[str], + mask: Optional[str] = None, + **fixed_inputs, + ) -> str: + """This creates a modification function for a subgraph. + To use this inside a template, the first argument should specify which subgraph to codegen for + + Args: + subgraph_number (int): The index of the subgraph in self.subgraphs + output_name (Optional[str]): The name of the output variable to store the result in + mask (Optional[str]): An optional mask to use for the store operation. If provided, this mask + will be applied to the store. + """ + num = 0 + out = None + scatters = [] + while f"mod_{subgraph_number}_{num}" in self.subgraph_bodies: + num += 1 + with self.create_subgraph_body(f"mod_{subgraph_number}_{num}"): + subgraph = self._get_subgraph(subgraph_number) + modification_handler = ModificationWrapper( + self, subgraph_number, fixed_inputs, mask + ) + with V.set_ops_handler(modification_handler): + assert isinstance(subgraph, (ir.ComputedBuffer, list)), ( + f"Expected the subgraph to be a ComputedBuffer or a List[ComputedBuffer], got {type(subgraph)}" + ) + # Handle scatter stores + if isinstance(subgraph, list): + for scatter_graph in subgraph: + scatters.append(self._handle_scatter_graph(scatter_graph)) + elif isinstance(subgraph.data, ir.InputBuffer): + out = subgraph.data.make_loader()(()) + else: + out = subgraph.data.inner_fn(()) + + self.codegen_body() + if output_name is not None: + assert isinstance(output_name, str) + assert out is not None + self.body.writeline(f"{output_name} = {out.value}") + else: + assert out is None + for scatter in scatters: + self.body.writeline(str(scatter)) + + body_val = self.body.getvalue() + self.cse.invalidate(OrderedSet()) + return body_val + + def load_input( + self, + input_name: str, + output_name: str, + indices: Union[list[Any], tuple[Any]], + mask: Optional[str] = None, + other: Optional[Union[float, int]] = 0.0, + indent_width: int = 4, + index_shape: Optional[tuple[str]] = None, + ): + """Loads an input and applies any necessary preprocessing or masking. + + Args: + input_name (str): The name of the input to load. + indices (Union[List, Tuple]): The index for each dimension of the input. + val (str): The name of the variable to store the loaded value. + mask (Optional[str]): An optional mask to use for the load operation. + other (Optional[Union[float, int]]): The value to use for masked elements. Default is 0.0. + indent_width (int): The number of spaces to use for indentation. + """ + + input_node = self.named_input_nodes[input_name] + if not self.prologue_loads_all_inputs: + self.prologue_supported_inputs.add(input_node.get_name()) + + tilings = (sympy_product(input_node.get_size()), sympy.Integer(1)) + groups = { + "x": tilings[0], + "r0_": tilings[1], + } + + range_trees = self.construct_range_trees( + pid_cache=None, + inside_reduction=False, + is_reduction=False, + numels=groups, + no_x_dim=False, + ) + load_code = None + + with self.create_subgraph_body(f""): + assert isinstance(indices, (list, tuple)) + assert isinstance(output_name, str) + assert isinstance(mask, (str, type(None))) + self.range_trees = range_trees + self.numels = {k: V.graph.sizevars.simplify(v) for k, v in groups.items()} + indices = list(map(OpOverrides.paren, indices)) + index_symbols = [sympy.Symbol(x, integer=True) for x in indices] + + lengths = [V.graph.sizevars.simplify(s) for s in input_node.get_size()] + assert len(indices) == len(lengths) + + index_symbols = [sympy.Symbol(x, integer=True) for x in indices] + assert len(indices) == len(lengths) + + # glue to make generated code use same indexing from template + + # TODO (from reviewers as well) + # in codegen_template, + # prologue_node.codegen(kernel.split_and_set_ranges(prologue_node.get_ranges())) + # the ranges need to reflect the group of the prologue input or it will error + # not sure if there is any difference between original range_tree_entry in + # and new one from correct lengths/groups... both actually seem to work + for name, range_tree_entry in zip( + indices, self.range_trees[0].construct_entries(lengths) + ): + range_tree_entry.set_name(name) + contiguous_index = sympy_dot( + ir.FlexibleLayout.contiguous_strides(lengths), index_symbols + ) + contiguous_index = self.rename_indexing(contiguous_index) + self.body.writeline("xindex = " + texpr(contiguous_index)) + + xindex_range_root = self.range_trees[0].lookup( + sympy.Integer(1), sympy_product(lengths) + ) + xindex_range_root.set_name("xindex") + + # Note - ["None" override_mask] + # MM Templates work by taking out of bounds index values and wrapping them around to 0 + # so that no mask is required on the load: offs_a_m = `rm % M` + # We should to override the mask to be "None" instead of inheriting the mask that would + # have been loaded otherwise. + # We are using "None" for clarity in output code, but + # we could alternatively emit `xmask = tl.full([xindex.shape], True, tl.int1)` + self.template_mask = mask if mask is not None else "None" + self.template_out_shape = index_shape if index_shape else "xindex" + self.template_indices = indices + self.cse.invalidate(OrderedSet()) + + template_mask = self.template_mask + + class StoreOutputSubstitution(V.WrapperHandler): # type: ignore[name-defined] + name = "StoreOutputSubstitution" + + def store( + self, + name: str, + index: sympy.Expr, + value: "CSEVariable", + mode: "StoreMode" = None, + ): + V.kernel.store_buffer_names.add(name) + V.kernel.cse.store_cache[name] = value + if name in V.kernel.prologue_fused_inputs: + # We load masked out values with 0, then apply a prologue. + # The masked out values may not necessariliy be 0 any more + # so we need to reapply the mask. + value_dtype = value.dtype + value_str = str(value) + if template_mask != "None" and ( + name not in V.kernel.prologue_fused_inputs_preserve_zero + or other != 0 + ): + value_str = ( + f"tl.where({template_mask}, {value_str}, {other})" + ) + + if value_dtype != V.graph.get_buffer(name).dtype: + value_str = f"{value_str}.to({triton_type(V.graph.get_buffer(name).dtype)})" + + # TODO: we should have intermediary var shapes + V.kernel.compute.writeline( + f"{output_name} = {value_str}.broadcast_to(xindex.shape)" + ) + + # pyrefly: ignore [bad-assignment] + self.ops_handler = StoreOutputSubstitution + + input_node = self.named_input_nodes[input_name] + output_index = input_node.make_indexer()(index_symbols) + + # in def_kernel above we define the inputs with the storage offset adjusted + # creating the load in input_node.make_indexer() will also adjust by storage offset + # so subtract here to not double increment + if not V.graph.sizevars.statically_known_equals( + input_node.layout.offset, 0 + ): + output_index = output_index - self.rename_indexing( + input_node.get_layout().offset + ) + + output_index = self.rename_indexing(output_index) + + if output_index == contiguous_index: + output_index_str = "xindex" + else: + out_indexing = self.indexing( + output_index, + copy_shape=self.template_out_shape, + override_mask=self.template_mask, + ) + from .codegen.triton import IndexingOptions + + assert isinstance(out_indexing, IndexingOptions) + output_index_str = ( + f"({out_indexing.index_str}).broadcast_to(xindex.shape)" + ) + + # Generate load code + load_code = f"{output_name} = tl.load({input_name} + ({output_index_str})" + + if mask: + load_code += f", mask={mask}, other={other})" + else: + load_code += ")" + + hook_key = f"" + + def hook(): + with self.set_subgraph_body(hook_key): + self.cse.invalidate(OrderedSet()) + self.codegen_body() + self.cse.invalidate(OrderedSet()) + if input_node.get_name() not in self.prologue_fused_inputs: + assert load_code is not None + self.body.writeline(load_code) + + return textwrap.indent(self.body.getvalue(), " " * indent_width).strip() + + return self._register_hook(hook_key, hook) + + def _generate_index_from_tma_index( + self, + output_name: str, + offset_name: str, + tma_index: sympy.Symbol, + block_size: str, + dim: int, + num_dims: int, + block_name: Optional[str] = None, + ) -> list[str]: + """ + Generate the logic to compute the regular tl.load index from the provided + tma index. This is used to ensure variables can support fusions. + + Args: + output_name (str): The output variable name. + offset_name (str): The name used for the intermediate offset. + tma_index (sympy.Symbol): The symbol used for the original TMA index. + block_size (str): The block size of the index. + dim (int): Which dimension to project the index in. + num_dims (int): The total number of dimensions in the output. + block_name (Optional[str]): The name of the block variable. If not passed + in then we aren't reusing standard symbol names. + + Returns: + list[str]: The lines used to generate the index. + + """ + if block_name: + # Generate the expected names for the structure: + # XBLOCK/YBLOCK and xoffset/yoffset. We append XBLOCK/YBLOCK + # to the top of the kernel so we can safely extract the tensor + # descriptor construction to the top of the kernel. + if block_name in self.prologue_cache: + assert self.prologue_cache[block_name] == block_size, ( + f"Constant {block_name} must be used for all stores" + ) + else: + self.prologue_cache[block_name] = block_size + self.prologue.writeline(f"{block_name}: tl.constexpr = {block_size}") + else: + block_name = block_size + line0 = f"{offset_name} = {texpr(tma_index)}" + expr = f"({offset_name} + tl.arange(0, {block_name}))" + prefix_none = "".join(["None, "] * dim) + suffix_none = ", ".join(["None"] * (num_dims - (dim + 1))) + line1 = f"{output_name} = {expr}[{prefix_none}:, {suffix_none}]" + return [line0, line1] + + def _generated_mask_for_tma( + self, + index_name: str, + shape_val: str, + output_name: str, + ) -> str: + """ + Generate the mask logic to feed to fusions for mask. The expectation + is that if we have X/Y there will be a variable named xmask and ymask. + + Args: + index_name (str): The index used in the mask. Should be one of + xindex or yindex. + shape_val (str): The expression for the upper bound shape. + output_name (str): The expression used for the output. + + Returns: + str: The mask generation line. + """ + return f"{output_name} = {index_name} < {shape_val}" + + def store_output( + self, + indices: Union[list[Any], tuple[Any]], + val: str, + mask: Optional[str] = None, + indent_width: int = 4, + val_shape: Optional[tuple[str]] = None, + block_indexing: bool = False, + ): + """Stores the final output and appends any epilogue fusions if the buffer hasn't been optimized away. + + Args: + indices (Union[List, Tuple]): The index for each dimension of the output. The dot product of + these indices and output strides must match `val`. + val (str): The value to store. + mask (Optional[str]): An optional mask to use for the store operation. If provided, this mask + will be applied to the store. + indent_width (int): The number of spaces to use for indentation. This is used when the call to + store_output is indented in the kernel definition. + block_indexing (bool): Are the input indices presented as offsets for creating the block (e.g. + inputs to TMA) or are they tensors that should be passed in directly. + """ + subgraph_name = self._get_store_output_subgraph_name( + next(self.store_output_ctr) + ) + with self.create_subgraph_body(subgraph_name, clear_cse=True): + assert isinstance(indices, (list, tuple)) + assert isinstance(val, str) + assert isinstance(mask, (str, type(None))) + assert isinstance(val_shape, (tuple, type(None))) + assert isinstance(block_indexing, bool) + assert self.template_mask is None + indices = list(map(OpOverrides.paren, indices)) + index_symbols = [sympy.Symbol(x, integer=True) for x in indices] + lengths = [ + V.graph.sizevars.simplify(s) for s in self.output_node.get_size() + ] + assert len(indices) == len(lengths) + + output_layout = self.output_node.get_layout() + self.template_out = val + if block_indexing: + assert val_shape, "Blocking indexing requires passing in val_shape" + assert len(val_shape) == 2, ( + "Blocking indexing only supports 2D data at this time" + ) + assert not mask, "Mask is not supported with blocking indexing" + intermediate_lines: list[str] = [] + epilogue_index_symbols: list[sympy.Symbol] = [] + if self.tma_store: + val_shape_copy = list(val_shape) + for i, range_tree in enumerate(self.range_trees[:-1]): + name = range_tree.name + symbol = range_tree.symbol() + epilogue_index_symbols.append(symbol) + lookup_output = range_tree.lookup(sympy.S.One, lengths[i]) + old_name = lookup_output.symbol() + lookup_output.set_name(name) + # Update var_list and var_range + range_tree.var_list[range_tree.var_list.index(old_name)] = ( + symbol + ) + range_val = range_tree.var_ranges[old_name] + del range_tree.var_ranges[old_name] + range_tree.var_ranges[symbol] = range_val + intermediate_lines.extend( + self._generate_index_from_tma_index( + name, + "xoffset" if name == "xindex" else "yoffset", + index_symbols[i], + val_shape[i], + i, + len(val_shape), + # pyrefly: ignore [missing-argument] + block_name=range_tree.symt.name, + ) + ) + # Generate the xmask and ymask + intermediate_lines.append( + self._generated_mask_for_tma( + name, + self.size(None, i), + "xmask" if name == "xindex" else "ymask", + ) + ) + # Update the val_shape information to use consistent naming + # after the remapping. + # pyrefly: ignore [missing-argument] + val_shape_copy[i] = range_tree.symt.name + val_shape = tuple(val_shape_copy) + else: + mask_vars: list[str] = [] + for i, (index, shape) in enumerate(zip(index_symbols, val_shape)): + index_name = self._gen_tmp_var() + offset_name = self._gen_tmp_var() + intermediate_lines.extend( + self._generate_index_from_tma_index( + index_name, + offset_name, + index, + shape, + i, + len(index_symbols), + ) + ) + epilogue_index_symbols.append( + sympy.Symbol(index_name, integer=True) + ) + mask_name = self._gen_tmp_var() + intermediate_lines.append( + self._generated_mask_for_tma( + index_name, + self.size(None, i), + mask_name, + ) + ) + mask_vars.append(mask_name) + final_mask_var = self._gen_tmp_var() + final_mask_rhs = " & ".join( + f"{mask_name}" for mask_name in mask_vars + ) + intermediate_lines.append(f"{final_mask_var} = {final_mask_rhs}") + self.template_mask = final_mask_var + index_symbols = epilogue_index_symbols + contiguous_index = sympy_dot(output_layout.stride, index_symbols) + if not self.tma_store: + # Convert to just use xindex. + contiguous_index = self.rename_indexing(contiguous_index) + intermediate_lines.append(f"xindex = {texpr(contiguous_index)}") + self.range_trees[0].lookup( + sympy.S.One, sympy_product(lengths) + ).set_name("xindex") + index_symbols = epilogue_index_symbols + output_index = contiguous_index + # Write out the intermediate lines + for line in intermediate_lines: + self.body.writeline(line) + else: + assert not self.tma_store, "TMA store requires block indexing" + # glue to make generated code use same indexing from template + for name, range_tree_entry in zip( + indices, self.range_trees[0].construct_entries(lengths) + ): + range_tree_entry.set_name(name) + contiguous_index = sympy_dot( + ir.FlexibleLayout.contiguous_strides(lengths), index_symbols + ) + contiguous_index = self.rename_indexing(contiguous_index) + self.body.writeline("xindex = " + texpr(contiguous_index)) + self.range_trees[0].lookup( + sympy.S.One, sympy_product(lengths) + ).set_name("xindex") + self.template_mask = mask + self.template_indices = indices + output_index = self.output_node.get_layout().make_indexer()( + index_symbols + ) + output_index = self.rename_indexing(output_index) + if output_index == contiguous_index: + output_index = sympy.Symbol("xindex", integer=True) + + # pyrefly: ignore [bad-assignment] + self.template_out_shape = val_shape if val_shape else val + acc_dtype = ( + triton_type_to_torch(self.meta["ACC_TYPE"]) + if "ACC_TYPE" in self.meta + else torch.float32 + ) + epilogue_args = [ + V.kernel.cse.namedvar(val, dtype=acc_dtype, shape=val_shape) + ] + for input_node in itertools.chain( + self.input_nodes[: self.prefix_args], + self.input_nodes[len(self.input_nodes) - self.suffix_args :], + ): + input_node.freeze_layout() + epilogue_arg = V.kernel.cse.generate( + self.compute, + input_node.make_loader()(index_symbols), + dtype=acc_dtype, + shape=input_node.get_size(), + ) + epilogue_args.append(epilogue_arg) + # We update frozen_layouts_cnt in order to replay this function on a cache hit. + self.frozen_layouts_cnt += 1 + + V.ops.store( + self.output_node.get_name(), + output_index, + self.epilogue_fn(*epilogue_args), + mode="tma" if self.tma_store else None, + ) + self.codegen_body() + + def hook(): + with self.set_subgraph_body(subgraph_name): + # more stuff might have been added since the codegen_body above + self.codegen_body() + self.cse.invalidate(OrderedSet()) + + return textwrap.indent(self.body.getvalue(), " " * indent_width).strip() + + return self._register_hook(subgraph_name, hook) + + def _register_hook( + self, + hook_name: str, + hook_fn: PartialRender.HookFn, + *, + allow_overwriting: bool = False, + ) -> str: + """ + Register a hook function with a name. + + ``hook_name`` should match the string that will be replaced via + ``hook_fn``, and should not already be in use for a hook. + + If ``allow_overwriting`` is ``False``, will assert that there isn't + currently a registered hook of the same name before registering the new + one. + """ + + if not allow_overwriting: + assert hook_name not in self.render_hooks, ( + f"Tried to register the hook {hook_name} multiple times. If " + "desired, pass allow_overwriting=True to _register_hook" + ) + self.render_hooks[hook_name] = hook_fn + return hook_name + + def _register_extra_template_env_fns(self, *fns: Callable[..., Any]): + """ + Register some extra functions to expose when performing the initial + template render, so that they're in scope to by used by jinja + expressions. + + These can be used to, for example, implement extra replacement hooks, + if the given function: + + * Returns the name of their hook, which should also be the string to + replace via the hook function. The convention is to use the format + . + * Assigns the corresponding entry in ``self.render_hooks`` to a hook + function. + """ + self.extra_template_env_fns.extend(fns) + + def render(self, template, kwargs, record_input_dependent_tracked_event=False): + if record_input_dependent_tracked_event: + self.cached_replay_events = [] + + template_env = { + fn.__name__: ( + self.record_input_dependent_tracked_event()(fn) + if record_input_dependent_tracked_event + else fn + ) + for fn in [ + self.def_kernel, + self.size, + self.stride, + self.store_output, + self.load_input, + self.make_load, + self.modification, + self.gen_argdefs, + self.gen_defines, + *self.extra_template_env_fns, + ] + } + return PartialRender( + template.render(**template_env, **kwargs), + self.render_hooks, + ) + + def make_load(self, name, indices, mask): + """ + Optional helper called from template code to generate the code + needed to load from an tensor. + """ + assert isinstance(indices, (list, tuple)) + assert isinstance(name, str) + assert isinstance(mask, str) + stride = self.get_stride_and_maybe_freeze_layout(self.named_input_nodes[name]) + indices = list(map(OpOverrides.paren, indices)) + assert len(indices) == len(stride) + index = " + ".join( + f"{texpr(self.rename_indexing(s))} * {i}" for s, i in zip(stride, indices) + ) + return f"tl.load({name} + ({index}), {mask}, other=0.0)" + + def indexing( + self, + index: sympy.Expr, + *, + dense_indexing=False, + copy_shape=None, + override_mask=None, + block_ptr=False, + tma_compatibility_checker: Optional[TMACompatibilityChecker] = None, + ): + """ + Override the default indexing to use our custom mask and force + dense indexing. + """ + return super().indexing( + index, + dense_indexing=False, + # We pass template_out as the shape to broadcast the indexing to as + # the mask might be broadcast to the output shape + copy_shape=self.template_out_shape, + override_mask=self.template_mask, + block_ptr=block_ptr, + tma_compatibility_checker=tma_compatibility_checker, + ) + + def codegen_range_tree(self): + pass # ignore default codegen + + def additional_call_args_and_types(self): + if isinstance(self.grid_fn, SymbolicGridFn): + grid_args = self.grid_fn.sympy_call(*self.call_sizes, self.meta) + assert len(grid_args) in (0, 3), "grid_fn should return 3 values" + return (grid_args, map(type, grid_args)) + elif all(isinstance(x, (int, sympy.Integer)) for x in self.call_sizes): + grid_args = self.grid_fn(*map(int, self.call_sizes), self.meta) + assert len(grid_args) in (0, 3), "grid_fn should return 3 values" + return (grid_args, map(type, grid_args)) + return ((), ()) + + def call_kernel( + self, name: str, node: Optional[ir.IRNode] = None, deallocate_ws: bool = True + ): + wrapper = V.graph.wrapper_code + _, call_args, _, arg_types = self.args.python_argdefs() + + additional_call_args, additional_arg_types = ( + self.additional_call_args_and_types() + ) + + if not additional_call_args: + assert not V.graph.cpp_wrapper, "cpp_wrapper requires SymbolicGridFn" + wrapper.add_import_once(f"import {self.grid_fn.__module__}") + meta = wrapper.add_meta_once(self.meta) + fn_name = f"{self.grid_fn.__module__}.{self.grid_fn.__name__}" + call_args.append( + f"*{fn_name}({', '.join(map(pexpr, self.call_sizes))}, {meta})" + ) + arg_types.append(None) + + call_args.extend(additional_call_args) + arg_types.extend(additional_arg_types) + + if self.workspace_arg is not None: + wrapper.generate_workspace_allocation(self.workspace_arg) + wrapper.generate_kernel_call( + name, + call_args, + arg_types=arg_types, + triton_meta=self.triton_meta, + triton=True, + ) + if self.workspace_arg is not None: + wrapper.generate_workspace_deallocation(self.workspace_arg) + + def kernel_benchmark_extra_args(self) -> list[str]: + return [ + str(x) + for x in self.grid_fn( + *V.graph.sizevars.size_hints(self.call_sizes), self.meta + ) + ] + + def get_stride_and_maybe_freeze_layout(self, node) -> list[int]: + node.data.freeze_layout() + return node.get_stride() + + +@functools.cache +def _jinja2_env(): + try: + import jinja2 + + return jinja2.Environment( + undefined=jinja2.StrictUndefined, + ) + except ImportError: + return None + + +class GenerateAndLoadResult(NamedTuple): + """ + Return type of TritonTemplate.generate_and_load. + """ + + mod: ModuleType + extra: str + input_call_args: tuple[str, ...] + prologue_supported_inputs: OrderedSet[str] + kernel_args_sizevars_keys: tuple[sympy.Expr, ...] + kernel_options: dict[str, Any] + + +class GeneratedCodeCacheEntry(NamedTuple): + code: str + extra: str + events: list[Any] + + +class GeneratedCodeCache: + """ + Cache for generated code. The cache key is a string representation of the input nodes, + number of stages, number of warps, and call sizes. The cache value is a tuple of the + generated code, extra code, and events. + """ + + def __init__(self, *args, **kwargs): + self._cache: dict[str, GeneratedCodeCacheEntry] = {} + + def cache_clear(self) -> None: + self._cache.clear() + + def __repr__(self): + return repr(self._cache) + + def make_key( + self, + input_nodes: tuple[ir.IRNode, ...], + num_stages: int, + num_warps: int, + call_sizes: Sequence[sympy.core.symbol.Symbol], + prefix_args: int, + suffix_args: int, + epilogue_fn: Optional[Callable[..., Any]], + epilogue_fn_hash: Optional[str], + tma_store: bool, + transpose_discontiguous_tensor_descriptors_override: Optional[bool], + subgraphs: Optional[list[ir.Buffer]], # has to be none to cache + workspace_arg: Optional[WorkspaceArg], # has to be none to cache + layout: ir.Layout, + num_consumer_groups: int, + num_buffers_warp_spec: int, + kwargs: dict[str, Any], + hint_override: Optional[int] = None, + ) -> Optional[str]: + def layout_key(layout: ir.Layout) -> str: + assert not isinstance(layout, ir.FlexibleLayout) + return repr( + [ + layout.size, + layout.stride, + layout.dtype, + layout.device, + layout.offset, + ] + ) + + def has_flexible_layout() -> bool: + if isinstance(layout, ir.FlexibleLayout): + return True + + for input in input_nodes: + if isinstance(input.get_layout(), ir.FlexibleLayout): + return True + return False + + if epilogue_fn is identity: + assert epilogue_fn_hash is None + epilogue_fn_hash = "identity" + + # we do not cache under those conditions right now. + if ( + has_flexible_layout() + or subgraphs is not None + or workspace_arg is not None + or epilogue_fn_hash is None + ): + return None + + return repr( + { + "input_nodes": [ + layout_key(input.get_layout()) for input in input_nodes + ], + "num_stages": num_stages, + "num_warps": num_warps, + "prefix_args": prefix_args, + "suffix_args": suffix_args, + "call_sizes": call_sizes, + "layout": layout_key(layout), + "num_consumer_groups": num_consumer_groups, + "num_buffers_warp_spec": num_buffers_warp_spec, + "epilogue_fn_hash": epilogue_fn_hash, + "tma_store": tma_store, + "transpose_discontiguous_tensor_descriptors_override": transpose_discontiguous_tensor_descriptors_override, + "kwargs": kwargs, + "hint_override": hint_override, + } + ) + + def get_entry(self, cache_key: Optional[str]) -> Optional[GeneratedCodeCacheEntry]: + if cache_key is None: + return None + + entry = self._cache.get(cache_key, None) + if entry is None: + torch._dynamo.utils.counters["inductor"]["generated_module_cache_miss"] += 1 + else: + torch._dynamo.utils.counters["inductor"]["generated_module_cache_hit"] += 1 + return entry + + def put_entry( + self, + cache_key: Optional[str], + code: str, + extra: str, + events: list[Any], + ) -> None: + if cache_key is None: + return + entry = GeneratedCodeCacheEntry(code, extra, events) + self._cache.update({cache_key: entry}) + + +class TritonTemplate(KernelTemplate): + """ + A Triton template is a template that can be used to generate a Triton kernel. + """ + + # Allow subclasses to override the kernel type + kernel_type: type[Any] = TritonTemplateKernel + index_counter = itertools.count() + all_templates: dict[str, "TritonTemplate"] = {} + + def __init__( + self, + name: str, + grid: Any, + source: str, + debug=False, + cache_codegen_enabled_for_template=False, + prologue_loads_all_inputs=False, + ) -> None: + super().__init__(name, hash=hashlib.sha256(source.encode("utf-8")).hexdigest()) + self.grid = grid + self.template = self._template_from_string(source) + assert name not in self.all_templates, "duplicate template name" + TritonTemplate.all_templates[name] = self + self.debug = debug + self._cache_codegen_enabled_for_template = cache_codegen_enabled_for_template + self._generated_code_cache: GeneratedCodeCache = GeneratedCodeCache() + clear_on_fresh_cache(self._generated_code_cache) + # When prologue_loads_all_inputs is true, prologue_supported_inputs is populated during def_kernel + # by adding all inputs. + self.prologue_loads_all_inputs = prologue_loads_all_inputs + + # When this flag is on, we ensure that the cached results and the generated result if cache + # was not used are the same. + test_cache = False + + @property + def uid(self) -> str: + # unique by prefixing with triton + return f"triton::{self.name}" + + def maybe_append_choice( + self, choices: list[Any], **kwargs: Any + ) -> Optional[NotImplementedError]: + """ + Maybe generates a new ChoiceCaller and appends it into existing choices. + Returns None if success, otherwise returns the error. + + choices: A list of ChoiceCallers. + kwargs: Additional kwargs to be passed to self.generate() to generate a new ChoiceCaller. + """ + + try: + choice = self.generate(generate_with_caching=True, **kwargs) + if choice is not None: + choices.append(choice) + return None + except NotImplementedError as e: + log.info( # noqa: G200 + "Cannot Append Choice: %s. KernelTemplate type is %s", + e, + type(self), + stack_info=log.getEffectiveLevel() < logging.INFO, + ) + return e + + # NOTE: MAKE SURE THAT ANY ARGUMENT ADDED TO THIS FUNCTION IS PROPERLY HANDLED IN _generated_code_cache.make_key. + def generate_and_load( + self, + input_nodes: tuple[ir.IRNode, ...], + num_stages: int, + num_warps: int, + call_sizes: Sequence[sympy.core.symbol.Symbol], + prefix_args: int, + suffix_args: int, + epilogue_fn: Optional[Callable[..., Any]], + epilogue_fn_hash: Optional[str], + subgraphs: Optional[list[ir.Buffer]], + workspace_arg: Optional[WorkspaceArg], + num_consumer_groups: int, + num_buffers_warp_spec: int, + layout: ir.Layout, + kwargs: dict[str, Any], + generate_with_caching, + hint_override: Optional[int] = None, + tma_store: bool = False, + transpose_discontiguous_tensor_descriptors_override: Optional[bool] = None, + ) -> Optional[GenerateAndLoadResult]: + """Generate the python code and load it into the current process""" + caching_enabled = ( + generate_with_caching + and torch._inductor.config.enable_caching_generated_triton_templates + ) + + cache_key = None + if caching_enabled: + cache_key = self._generated_code_cache.make_key( + input_nodes, + num_stages, + num_warps, + call_sizes, + prefix_args, + suffix_args, + epilogue_fn, + epilogue_fn_hash, + tma_store, + transpose_discontiguous_tensor_descriptors_override, + subgraphs, + workspace_arg, + layout, + num_consumer_groups, + num_buffers_warp_spec, + kwargs, + ) + + assert self.template, "requires jinja2" + defines = StringIO() + + for name, val in kwargs.items(): + defines.write(f"{name} : tl.constexpr = {val}\n") + + fake_out = ir.Buffer(name="buf_out", layout=layout) + kernel_name = f"triton_{self.name}" + + numel = sympy_product(layout.size) + buffers = itertools.chain(input_nodes, (fake_out,)) + + if TritonScheduling.can_use_32bit_indexing(numel, buffers): + index_dtype = "tl.int32" + else: + index_dtype = "tl.int64" + + # Add index dtype to defines so it's available in the template + defines.write(f"INDEX_DTYPE : tl.constexpr = {index_dtype}\n") + defines = defines.getvalue() + + kernel_options = { + "input_nodes": input_nodes, + "defines": defines, + "num_stages": num_stages, + "num_warps": num_warps, + "grid_fn": self.grid, + "meta": kwargs, + "call_sizes": call_sizes, + "prefix_args": prefix_args, + "suffix_args": suffix_args, + "epilogue_fn": epilogue_fn, + "subgraphs": subgraphs, + "prologue_loads_all_inputs": self.prologue_loads_all_inputs, + } + + if HAS_WARP_SPEC: + kernel_options.update( + { + "num_consumer_groups": num_consumer_groups, + "num_buffers_warp_spec": num_buffers_warp_spec, + } + ) + + def make_kernel(): + return self.kernel_type( + kernel_name=kernel_name, + output_node=fake_out, + workspace_arg=workspace_arg, + use_jit=False, + hint_override=hint_override, + tma_store=tma_store, + transpose_discontiguous_tensor_descriptors_override=transpose_discontiguous_tensor_descriptors_override, + **kernel_options, + ) + + def generate_code(kernel) -> Optional[tuple[str, str]]: + def make_extra() -> str: + extra_parts = [ + f"{kwarg}={repr(kwargs[kwarg])}" for kwarg in sorted(kwargs.keys()) + ] + + extra_parts.extend( + [ + f"num_stages={num_stages}", + f"num_warps={num_warps}", + ] + ) + if HAS_WARP_SPEC: + extra_parts.extend( + [ + f"num_consumer_groups={num_consumer_groups}", + f"num_buffers_warp_spec={num_buffers_warp_spec}", + ] + ) + extra = "-".join(extra_parts) + "-" + return extra + + try: + template = kernel.render(self.template, kwargs, caching_enabled) + code = template.finalize_all() + except ZeroDivisionError: + # TODO(nmacchioni): fix sympy division by zero + return None + if self.debug: + print("Generated Code:\n", code) + + extra = make_extra() + return code, extra + + def maybe_test_cache(code: str, extra: str, kernel): + if self.test_cache or self.debug: + with ( + patch.object(V.graph, "get_dtype", self._fake_get_dtype(fake_out)), + V.graph.set_current_device(layout.device), + make_kernel() as kernel_test, + ): + result2 = generate_code(kernel_test) + assert result2 is not None + code_test, extra_test = result2 + assert ( + code == code_test + and extra == extra_test + and kernel.args.input_buffers == kernel_test.args.input_buffers + and kernel.prologue_supported_inputs + == kernel_test.prologue_supported_inputs + and kernel.args.sizevars == kernel_test.args.sizevars + ), "Generated code cache results in wrong output" + + # Generate code, extra. + code: Optional[str] = None + extra: Optional[str] = None + with ( + patch.object(V.graph, "get_dtype", self._fake_get_dtype(fake_out)), + V.graph.set_current_device(layout.device), + make_kernel() as kernel, + ): + cache_entry = self._generated_code_cache.get_entry(cache_key) + cache_hit = False + + if cache_entry is not None: + code, extra, events = cache_entry + kernel.replay_cached_events(events) + cache_hit = True + + else: + result = generate_code(kernel) + if result is None: # happens at ZeroDivisionError: + return None + code, extra = result + self._generated_code_cache.put_entry( + cache_key, code, extra, kernel.cached_replay_events + ) + + assert code is not None and extra is not None + + mod = PyCodeCache.load(code, extra) + + input_call_args = tuple(kernel.args.input_buffers.keys()) + prologue_supported_inputs = kernel.prologue_supported_inputs.copy() + kernel_args_sizevars_keys = tuple(kernel.args.sizevars.keys()) + + if cache_hit: + maybe_test_cache(code, extra, kernel) + + return GenerateAndLoadResult( + mod, + extra, + input_call_args, + prologue_supported_inputs, + kernel_args_sizevars_keys, + kernel_options, + ) + + def generate( # type: ignore[override] + self, + input_nodes: tuple[ir.IRNode, ...], + layout: ir.Layout, + num_stages: int, + num_warps: int, + num_consumer_groups: int = 0, + num_buffers_warp_spec: int = 0, + prefix_args: int = 0, + suffix_args: int = 0, + epilogue_fn: Optional[Callable[..., Any]] = identity, + epilogue_fn_hash: Optional[str] = None, + subgraphs: Optional[list[ir.Buffer]] = None, + mutated_inputs: Optional[list[ir.IRNode]] = None, + call_sizes: Optional[Sequence[sympy.core.symbol.Symbol]] = None, + workspace_arg: Optional[WorkspaceArg] = None, + generate_with_caching=False, + hint_override: Optional[int] = None, + tma_store: bool = False, + transpose_discontiguous_tensor_descriptors_override: Optional[bool] = None, + **kwargs, + ): + """This function generates a TritonTemplateCaller + + Args: + input_nodes: List of input nodes + layout: Output layout + num_stages: Number of stages for triton launch + num_warps: Number of warps for triton launch + prefix_args: Number of input nodes to be passed as arguments + suffix_args: Number of input nodes to be passed as arguments + epilogue_fn: Optional epilogue function to be called on the output + subgraphs: Optional subgraphs to be passed as arguments, these will be inlined + into the triton template string + mutated_inputs: Optional list of input nodes that are mutated by the kernel, this is helpful + if you need to return multiple outputs. You can pass them as inputs and mark them as + being mutated by the kernel. + """ + # HACK: Triton currently breaks if TF32 floats are requested, but the CUDA + # capability doesn't support them. This is a bug in Triton, but for now we'll + # patch around it here. See https://github.com/triton-lang/triton/issues/3011 + # for one example issue with this problem. + if torch.cuda.is_available() and not torch.cuda.is_tf32_supported(): + kwargs["ALLOW_TF32"] = "False" + + if call_sizes is None: + call_sizes = layout.size + + result = self.generate_and_load( + input_nodes, + num_stages, + num_warps, + call_sizes, + prefix_args, + suffix_args, + epilogue_fn, + epilogue_fn_hash, + subgraphs, + workspace_arg, + num_consumer_groups, + num_buffers_warp_spec, + layout, + kwargs, + generate_with_caching and self._cache_codegen_enabled_for_template, + hint_override=hint_override, + tma_store=tma_store, + transpose_discontiguous_tensor_descriptors_override=transpose_discontiguous_tensor_descriptors_override, + ) + + # May happen as result of dev by 0. + if result is None: + return None + + # We expect the input_buffer order to be [*input_nodes, *captured_buffers] + expected_input_args = tuple(unique(x.get_name() for x in input_nodes)) + assert ( + result.input_call_args[: len(expected_input_args)] == expected_input_args + ), ( + result.input_call_args, + expected_input_args, + ) + + # `kernel_input_nodes` are the actual inputs that will be passed to the kernel, + # so e.g. views of the same input are not included. `codegen_input_nodes` + # includes views of inputs to preserve the kernel semantics. The shape and + # strides of `codegen_input_nodes` will be used to infer read/writes in + # TemplateBuffer.extract_read_writes + kernel_input_nodes = tuple( + [V.graph.get_buffer(k) for k in result.input_call_args] + ) + # Here we have (*input_nodes, *captured_buffers) + codegen_input_nodes = ( + tuple(input_nodes) + kernel_input_nodes[len(expected_input_args) :] + ) + extra_args = V.graph.sizevars.size_hints( + map(sympy.expand, result.kernel_args_sizevars_keys), + fallback=config.unbacked_symint_fallback, + hint_override=hint_override, + ) + + kernel_hash_name = f"triton_{self.name}_{next(self.index_counter)}" + + workspace_args = [] + if workspace_arg is not None: + # Create workspace tensor + workspace_size = workspace_arg.count + workspace_tensor = torch.empty_strided( + (workspace_size,), + (1,), + dtype=torch.uint8, + device=layout.device.type, + ) + + # Handle zero initialization if needed + if workspace_arg.zero_mode != WorkspaceZeroMode.UNINITIALIZED: + workspace_tensor.zero_() + + workspace_args.append(workspace_tensor) + + options = result.kernel_options + + def make_kernel_render(out_node, hint_override: Optional[int] = None): + assert result is not None + kernel = self.kernel_type( + kernel_name=str(Placeholder.KERNEL_NAME), + output_node=out_node, + workspace_arg=workspace_arg, + use_jit=False, + hint_override=hint_override, + tma_store=tma_store, + transpose_discontiguous_tensor_descriptors_override=transpose_discontiguous_tensor_descriptors_override, + **options, + ) + render = functools.partial( + kernel.render, + self.template, + kwargs, + ) + return kernel, render + + # create the BenchmarkRequest + assert result.mod.__file__ is not None + grid = self.grid( + *V.graph.sizevars.size_hints( + call_sizes, + fallback=config.unbacked_symint_fallback, + hint_override=hint_override, + ), + kwargs, + ) + bmreq_cls: type[TritonBenchmarkRequest] + if layout.device.type == "cpu": + bmreq_cls = TritonCPUBenchmarkRequest + else: + bmreq_cls = TritonGPUBenchmarkRequest + bmreq = bmreq_cls( + module_path=result.mod.__file__, + module_cache_key=result.mod.key, + kernel_name=f"triton_{self.name}", + extra_args=[*extra_args, *workspace_args, *grid], + num_stages=num_stages, + num_warps=num_warps, + num_consumer_groups=num_consumer_groups, + num_buffers_warp_spec=num_buffers_warp_spec, + matrix_instr_nonkdim=kwargs.get("matrix_instr_nonkdim", 0), + waves_per_eu=kwargs.get("waves_per_eu", 0), + kpack=kwargs.get("kpack", 2), + input_tensor_meta=TensorMeta.from_irnodes(kernel_input_nodes), # type: ignore[arg-type] + output_tensor_meta=TensorMeta.from_irnodes(layout), + ) + + return TritonTemplateCaller( + kernel_hash_name, + codegen_input_nodes, + layout, + make_kernel_render, + result.extra.strip("-").replace("-", ", "), + bmreq, + log_info={ + "tile_shape": str( + ( + kwargs.get("BLOCK_M", -1), + kwargs.get("BLOCK_K", -1), + kwargs.get("BLOCK_N", -1), + ) + ), + "num_stages": num_stages, + "num_warps": num_warps, + "GROUP_M": kwargs.get("GROUP_M", -1), + "allow_tf32": str(kwargs.get("ALLOW_TF32")), + "acc_type": str(kwargs.get("ACC_TYPE")), + "matrix_instr_nonkdim": kwargs.get("matrix_instr_nonkdim", 0), + "waves_per_eu": kwargs.get("waves_per_eu", 0), + "kpack": kwargs.get("kpack", 2), + **{ + k: kwargs[k] + for k in AlgorithmSelectorCache.FLEX_ATTENTION_TUNABLE_KEYS + if k in kwargs + }, + }, + mutated_inputs=mutated_inputs, + workspace_arg=workspace_arg, + allowed_prologue_inps=result.prologue_supported_inputs, + hint_override=hint_override, + ) + + +class ExternKernelChoice: + def __init__( + self, + kernel, + cpp_kernel=None, + *, + name=None, + has_out_variant=True, + op_overload=None, + use_fallback_kernel=False, + kernel_creator=None, + ) -> None: + super().__init__() + name = name or kernel.__name__ + assert callable(kernel) + assert not hasattr(extern_kernels, name), f"duplicate extern kernel: {name}" + self.name = name + self.cpp_kernel_name = cpp_kernel + self.has_out_variant = has_out_variant + setattr(extern_kernels, name, kernel) + self.op_overload = op_overload + self.use_fallback_kernel = use_fallback_kernel + self.kernel_creator = kernel_creator + # match the API for KernelTemplate as they can be treated the same + # There is no src hash for ExternKernelChoice in the traditional sense + # so we indicate this by returning None + self.src_hash = None + # By default GraphModule is None for extern kernels if not set + self.gm = None + + def to_callable(self): + return getattr(extern_kernels, self.name) + + def call_name(self): + return f"extern_kernels.{self.name}" + + @functools.cache # noqa: B019 + def hash_key(self): + fn = self.to_callable() + parts = [ + self.name, + getattr(fn, "__name__", ""), + getattr(fn, "__module__", ""), + ] + try: + parts.append(inspect.getsource(fn)) + except Exception: + pass + return code_hash("-".join(parts)) + + def bind( + self, + input_nodes, + layout, + ordered_kwargs_for_cpp_kernel=(), + **kwargs, + ): + self.ordered_kwargs_for_cpp_kernel = ordered_kwargs_for_cpp_kernel + return ExternKernelCaller( + self, input_nodes, layout, kwargs, has_out_variant=self.has_out_variant + ) + + @property + def uid(self) -> str: + # unique by prefixing with aten + return f"aten::{self.name}" + + def choice_or_none(self, **kwargs: Any) -> Optional[ChoiceCaller]: + """ + Maybe generates a new ChoiceCaller and returns it, or None if generation fails. + + kwargs: Additional kwargs to be passed to generate a new ChoiceCaller. + """ + temp_choices: list[Any] = [] + result = self.maybe_append_choice(temp_choices, **kwargs) + if result is None and len(temp_choices) == 1: + return temp_choices[0] + return None + + def maybe_append_choice( + self, choices: list[Any], **kwargs: Any + ) -> Optional[NotImplementedError]: + # convenience function to match the Template interface, so that + # templates and ExternKernelChoice can be treated the same when + # generating choice callers + assert "input_nodes" in kwargs, "input_nodes argument required" + assert "layout" in kwargs, "layout argument required" + input_nodes = kwargs.pop("input_nodes") + layout = kwargs.pop("layout") + choices.append(self.bind(input_nodes=input_nodes, layout=layout, **kwargs)) + return None + + +class TritonTemplateCaller(ir.TritonTemplateCallerBase): + def __init__( + self, + name, + input_nodes, + layout, + make_kernel_render, + description, + bmreq, + log_info: Optional[ + dict[str, Union[PrimitiveInfoType, list[PrimitiveInfoType]]] + ] = None, + mutated_inputs=None, + workspace_arg: Optional[WorkspaceArg] = None, + allowed_prologue_inps: Optional[OrderedSet[str]] = None, + hint_override: Optional[int] = None, + ) -> None: + super().__init__(name, input_nodes, layout, description) + self.make_kernel_render = make_kernel_render + self.bmreq: TritonBenchmarkRequest = bmreq + if log_info is None: + log_info = {} + self.log_info: dict[str, Any] = log_info + self.log_info.update( + { + "backend": "Triton", + "num_stages": self.bmreq.num_stages, + "num_warps": self.bmreq.num_warps, + } + ) + self.mutated_inputs = mutated_inputs + self.workspace_arg = workspace_arg + self.allowed_prologue_inps = ( + allowed_prologue_inps if allowed_prologue_inps is not None else OrderedSet() + ) + self.hint_override = hint_override + + def benchmark(self, *args, out): + assert self.bmreq is not None + if config.profile_bandwidth_with_do_bench_using_profiling: + algo = self.bmreq.make_run_fn(*args, out=out) + return do_bench_using_profiling(algo) + return self.bmreq.benchmark(*args, out=out) + + def precompile(self): + assert self.bmreq is not None + self.bmreq.precompile() + + def __str__(self) -> str: + return f"TritonTemplateCaller({self.bmreq.module_path}, {self.description})" + + def call_name(self): + return f"template_kernels.{self.name}" + + def hash_key(self): + return "-".join( + [ + self.name.rsplit("_", 1)[0], + self.bmreq.module_cache_key, + ] + ) + + def output_node(self): + return ir.TensorBox.create( + ir.TritonTemplateBuffer( + layout=self.layout, + inputs=self.input_nodes, + make_kernel_render=self.make_kernel_render, + mutated_inputs=self.mutated_inputs, + allowed_prologue_inps=self.allowed_prologue_inps, + ) + ) + + def info_dict(self) -> dict[str, Union[PrimitiveInfoType, list[PrimitiveInfoType]]]: + """Information returned here is logged to the autotune log file when that is enabled.""" + return self.log_info + + def get_make_kernel_render(self): + return self.make_kernel_render + + def autoheuristic_id(self): + type_name = "triton" + info = self.info_dict() + # TODO(AlnisM): Does tile_shape always exist? + tile = info["tile_shape"] + tile_vals = eval(tile) # type: ignore[arg-type] + BLOCK_M = tile_vals[0] + BLOCK_K = tile_vals[1] + BLOCK_N = tile_vals[2] + num_stages = info["num_stages"] + num_warps = info["num_warps"] + return f"type={type_name}_BLOCK-M={BLOCK_M}_BLOCK-K={BLOCK_K}_BLOCK-N={BLOCK_N}_numstages={num_stages}_numwarps={num_warps}" + + +class ExternKernelCaller(ChoiceCaller): + """ + Caller for external kernel implementations + """ + + def __init__( + self, + choice: ExternKernelChoice, + input_nodes, + layout, + kwargs=None, + *, + has_out_variant=True, + ) -> None: + super().__init__(choice.name, input_nodes, layout, description="") + self.choice = choice + self.kwargs = kwargs or {} + self.has_out_variant = has_out_variant + self.gm = choice.gm + self.bmreq: Optional[BenchmarkRequest] = None + + from torch._inductor.autotune_process import ( + ExternKernelBenchmarkRequest, + ExternKernelCPUBenchmarkRequest, + ExternKernelGPUBenchmarkRequest, + ) + + # Determine if this is a GPU or CPU kernel + if self.layout: + device = self.layout.device + else: + device = None + for inp_node in self.input_nodes: + dev = inp_node.get_device() + if dev and dev.type != "cpu": + device = dev + break + + if not device: + device = torch.device("cpu") + + self.input_tensor_meta: Union[list[TensorMeta], TensorMeta] + self.output_tensor_meta: Union[list[TensorMeta], TensorMeta] + self.input_tensor_meta, self.output_tensor_meta = [], [] + if device.type == "cpu": + benchmark_cls = ExternKernelCPUBenchmarkRequest + else: + try: + self.input_tensor_meta = TensorMeta.from_irnodes(self.input_nodes) + self.output_tensor_meta = TensorMeta.from_irnodes(self.layout) + except Exception: + log.warning( + "Constructing input/output tensor meta failed for Extern Choice" + ) + + benchmark_cls = ExternKernelGPUBenchmarkRequest + + self.bmreq: ExternKernelBenchmarkRequest = benchmark_cls( + kernel_name=self.choice.name, + input_tensor_meta=self.input_tensor_meta, + output_tensor_meta=self.output_tensor_meta, + extra_args=(), + callable_path=self.choice.call_name(), + kwargs=self.kwargs, + has_out_variant=self.has_out_variant, + ) + + def __str__(self) -> str: + return f"ExternKernelCaller({self.choice.call_name()})" + + def benchmark(self, *args, out): + # pyrefly: ignore [missing-attribute] + return self.bmreq.benchmark(*args, out=out) + + def benchmark_collective(self, *args, out): + """ + Called by benchmark_collective_choice, only run once, timing handled externally with barrier sync. + """ + if out.numel() == 0: + return + + algo = self.to_callable() + if self.has_out_variant: + algo(*args, out=out) + else: + algo(*args) + + def to_callable(self): + # pyrefly: ignore [missing-attribute] + return self.bmreq.to_callable() + + def hash_key(self): + return "-".join( + [ + self.choice.name, + *[ + f"{kwarg}={repr(self.kwargs[kwarg])}" + for kwarg in sorted(self.kwargs.keys()) + ], + self.choice.hash_key(), + ] + ) + + def output_node(self): + if self.choice.use_fallback_kernel: + assert self.choice.op_overload is not None, ( + "Please provide an op_overload to use ir.FallbackKernel" + ) + inner: ir.IRNode = ir.FallbackKernel.create( + self.choice.op_overload, *self.input_nodes, **self.kwargs + ) + elif self.choice.kernel_creator is not None: + inner = self.choice.kernel_creator(*self.input_nodes, **self.kwargs) + else: + cls = ir.ExternKernelOut if self.has_out_variant else ir.ExternKernelAlloc + inner = cls( + layout=self.layout, + inputs=self.input_nodes, + python_kernel_name=self.choice.call_name(), + cpp_kernel_name=self.choice.cpp_kernel_name, + ordered_kwargs_for_cpp_kernel=self.choice.ordered_kwargs_for_cpp_kernel, + op_overload=self.choice.op_overload, + kwargs=self.kwargs, + ) + + return ir.TensorBox.create(inner) + + def info_dict(self) -> dict[str, Union[PrimitiveInfoType, list[PrimitiveInfoType]]]: + """Information returned here is logged to the autotune log file when that is enabled.""" + return { + "backend": "extern", + "kernel_call_name": self.choice.call_name(), + } + + def autoheuristic_id(self): + return f"extern_{self.choice.name}" + + +@functools.cache +def get_mm_log_filename() -> Optional[str]: + mm_file_name = os.environ.get("TORCHINDUCTOR_MM_LOGGING_FILE", None) + if not mm_file_name: + return None + + if "json" not in mm_file_name: + mm_file_name = f"{mm_file_name}.json" + + return mm_file_name + + +@functools.cache +def get_flex_attention_log_filename() -> Optional[str]: + flex_attention_file_name = os.environ.get( + "TORCHINDUCTOR_FLEX_ATTENTION_LOGGING_FILE", None + ) + if not flex_attention_file_name: + return None + + return str(Path(flex_attention_file_name).with_suffix(".json")) + + +def append_to_log(filename, data): + lock_file = filename.replace(".json", ".lock") + lock = FileLock(lock_file) + with lock: + try: + with open(filename) as f: + log_data = json.load(f) + except (FileNotFoundError, json.JSONDecodeError): + log_data = [] + + log_data.append(data) + + with open(filename, "w") as f: + json.dump(log_data, f, indent=4) + + +class DataProcessorChoiceCallerWrapper: + def __init__(self, wrapped, preprocessor, postprocessor) -> None: + self._wrapped = wrapped + if preprocessor is not None: + self._preprocessor = preprocessor + else: + self._preprocessor = lambda x, y: (x, y) + if postprocessor is not None: + self._postprocessor = postprocessor + else: + self._postprocessor = lambda x: x + + def __getattr__(self, name): + return getattr(self._wrapped, name) + + def benchmark(self, *args, out) -> float: + new_args, new_out = self._preprocessor(args, out) + result = self._wrapped.benchmark(*new_args, out=new_out) + new_out = self._postprocessor(new_out) + if out is not new_out: + out.copy_(new_out) + return result + + def output_node(self) -> ir.TensorBox: + result = self._wrapped.output_node() + return self._postprocessor(result) + + def __repr__(self) -> str: + return f"DataProcessorChoiceCallerWrapper({self._wrapped})" + + +class DataProcessorTemplateWrapper: + """ + A wrapper class for a kernel template. + + This class together with `DataProcessorChoiceCallerWrapper` provides a convenient way to + preprocess and postprocess data before and after using the wrapped template. A typical + usage is to reorder or filter the input nodes in order to match the expected input of other + kernel choices like a ATen kernel. A more complicated usage is to prepack the weights. + See the example from :mod:`cpp_gemm_template` for more details. + """ + + def __init__( + self, + wrapped_template_cls, + preprocessor, + postprocessor, + **kwargs, + ) -> None: + if preprocessor is not None: + self._preprocessor = preprocessor + else: + self._preprocessor = lambda x, y: (x, y) + if postprocessor is not None: + self._postprocessor = postprocessor + else: + self._postprocessor = lambda x: x + assert "input_nodes" in kwargs + assert "layout" in kwargs + # pyrefly: ignore [not-callable] + kwargs["input_nodes"], kwargs["layout"] = preprocessor( + kwargs["input_nodes"], kwargs["layout"] + ) + self._wrapped = wrapped_template_cls(**kwargs) + + def __getattr__(self, name): + return getattr(self._wrapped, name) + + def maybe_append_choice(self, choices, **kwargs): + return type(self._wrapped).maybe_append_choice(self, choices, **kwargs) + + def generate(self, **kwargs): + choice_caller = self._wrapped.generate(**kwargs) + return DataProcessorChoiceCallerWrapper( + choice_caller, self._preprocessor, self._postprocessor + ) + + def __repr__(self) -> str: + return f"DataProcessorTemplateWrapper({self._wrapped})" + + +class ErrorFromChoice(RuntimeError): + def __init__(self, msg, choice: ChoiceCaller, inputs_str) -> None: + msg += f"\nFrom choice {choice}\n{inputs_str}" + super().__init__(msg) + self.choice = choice + + +class NoValidChoicesError(RuntimeError): + pass + + +@functools.cache +def get_num_workers() -> int: + if "TORCHINDUCTOR_COMPILE_THREADS" in os.environ: + return int(os.environ["TORCHINDUCTOR_COMPILE_THREADS"]) + + cpu_count = ( + len(os.sched_getaffinity(0)) + if hasattr(os, "sched_getaffinity") + else os.cpu_count() + ) + assert cpu_count + + # Divide the number of CPUs by the number of GPUs for distributed workloads + if ( + config.is_fbcode() + and torch.cuda.is_available() + and torch.cuda.device_count() > 0 + ): + cpu_count = cpu_count // torch.cuda.device_count() + + return cpu_count + + +def create_inputs_key(input_nodes) -> str: + return repr([AlgorithmSelectorCache.key_of(x) for x in input_nodes]) + + +def create_precompile_key( + name: str, inputs_key: str, choices: list[ChoiceCaller] +) -> str: + return ":".join( + [ + name, + inputs_key, + torch.get_float32_matmul_precision(), + ] + + [choice.kernel_hash_key() for choice in choices] + ) + + +# Args to FeedbackFunctions +# timings: mapping from choices to the benchmark time +# name: name of the op +# input_nodes: list of input ir.py Nodes +# choices: list of choices +# profiled time: Callable that returns a dict mapping from choices to the profiled time +FeedbackFunction = Callable[ + [ + dict[ChoiceCaller, float], + str, + list[Any], + list[ChoiceCaller], + Callable[[], dict[ChoiceCaller, float]], + ], + None, +] + +# Args to PreprocessingFunctions +# choices: list of ChoiceCaller objects to preprocess +# Returns: modified list of ChoiceCaller objects +PreprocessingFunction = Callable[[list[ChoiceCaller]], list[ChoiceCaller]] + + +def filter_choices_by_name_regex(choices: list[ChoiceCaller]) -> list[ChoiceCaller]: + """Filter choices based on autotune_choice_name_regex config.""" + if config.test_configs.autotune_choice_name_regex is not None: + return [ + c + for c in choices + if re.search( + config.test_configs.autotune_choice_name_regex, + c.name, + ) + ] + return choices + + +def filter_choices_by_desc_regex(choices: list[ChoiceCaller]) -> list[ChoiceCaller]: + """Filter choices based on autotune_choice_desc_regex config.""" + if config.test_configs.autotune_choice_desc_regex is not None: + return [ + c + for c in choices + if re.search( + config.test_configs.autotune_choice_desc_regex, + c.description, + ) + ] + return choices + + +class AlgorithmSelectorCache(PersistentCache): + """ + A persistent cache for algorithm selection results used in autotuning of GEMMs + and convolutions. + + This classes includes precompilation and benchmarking of the kernels. + + The cache is keyed by input characteristics (sizes, strides, dtypes, etc.) but + doesn't depend on the output layout. + """ + + FLEX_ATTENTION_TUNABLE_KEYS = tuple( + dict.fromkeys( + [ + "num_warps", + "num_stages", + "BLOCK_M", + "BLOCK_N", + "BLOCK_M1", + "BLOCK_N1", + "BLOCK_M2", + "BLOCK_N2", + "USE_TMA", + "kpack", + "matrix_instr_nonkdim", + "waves_per_eu", + ] + ) + ) + + def __init__(self, *args, **kwargs) -> None: + super().__init__(*args, **kwargs) + + # the autotuning will get occur in the scheduler, so there is + # no guarantee that the first lowering for a given key will also be the + # first to benchmark it. share a single precompilation function for all lowerings + # of a particular key + self.precompile_cache: dict[str, Callable[[], None]] = {} + # cache for prescreening results to ensure deterministic candidate selection + self.prescreening_cache: dict[str, OrderedSet[str]] = {} + # list of callbacks that are called after benchmarking + self.feedback_saver_fns: list[FeedbackFunction] = [] + # list of callbacks that are called to preprocess choices + self.preprocessing_fns: list[PreprocessingFunction] = [] + + self._register_default_preprocessing_fns() + + # registers `self.cache_clear(...)` to be called when a fresh Inductor cache is requested + clear_on_fresh_cache(self) + + def _register_default_preprocessing_fns(self): + """Register default preprocessing functions.""" + # Note: broken out into its own function so that we can avoid clearing + # them (i.e. so we can restore them after clearing user provided ones) + self.add_preprocessing_fn(filter_choices_by_name_regex) + self.add_preprocessing_fn(filter_choices_by_desc_regex) + + def cache_clear(self) -> None: + self.precompile_cache.clear() + self.prescreening_cache.clear() + + def pick_deterministic_choice(self, choices: list[ChoiceCaller]) -> ChoiceCaller: + assert len(choices) >= 2 + externs = [ + choice for choice in choices if isinstance(choice, ExternKernelChoice) + ] + if len(externs) > 0: + # pyrefly: ignore [bad-return] + return externs[0] + else: + return choices[0] + + def __call__( + self, + name, + choices: list[ChoiceCaller], + input_nodes, + layout, + # optional dict mapping arg indices to the functions + # generating a torch.Tensor for that input from the + # corresponding ir.Buffer. if passed for a given + # arg, the function will be called instead of + # generating a random torch.Tensor for benchmarking. + input_gen_fns: Optional[dict[int, Callable[[ir.Buffer], torch.Tensor]]] = None, + precompilation_timeout_seconds: int = 60 * 60, + return_multi_template=False, + best_config_future=None, + return_choice=False, # TODO: return_choice is temporary and will be refactored soon + is_collective=False, + ): + from .codegen.cuda.cuda_kernel import CUDATemplateCaller + + # Run preprocessing functions on choices + for preprocessing_fn in self.preprocessing_fns: + choices = preprocessing_fn(choices) + + # Templates selected with input_gen_fns require specific input data to avoid IMA + # Passing custom input gen fns to benchmark_fusion NYI, so skip deferred template selection + # TODO(jgong5): support multi-template on CPU C++ backend + if input_gen_fns is not None or ( + layout.device.type == "cpu" and config.cpu_backend != "triton" + ): + return_multi_template = False + + # TODO - assert that we have not mutating kernels here + + if mm_file_name := get_mm_log_filename(): + M, K = input_nodes[-2].get_size()[:2] + N = input_nodes[-1].get_size()[-1] + append_to_log(mm_file_name, {"invoke": str((M, K, N))}) + + if len(choices) == 0: + raise self.create_no_valid_choices(name, "No choices exist for backend.") + log.debug("Max autotune selects from %s choices.", str(len(choices))) + + if len(choices) == 1: + if not isinstance(choices[0], CUDATemplateCaller): + # CUDATemplateCaller still needs to go through autotuning process to retrieve workspace size. + return choices[0].output_node() + + if config.deterministic: + return self.pick_deterministic_choice(choices).output_node() + + inputs_key = create_inputs_key(input_nodes) + + if config.autotune_in_subproc: + # Initialize the suprocess pool so it will warmup early. + torch._inductor.autotune_process.get_tuning_process_pool() + + precompile_fn = self.make_precompile_fn( + choices, + name, + inputs_key, + precompilation_timeout_seconds=precompilation_timeout_seconds, + ) + + if return_multi_template and (config.max_autotune or config.max_autotune_gemm): + + def get_timings(hint_override: Optional[int] = None): + filtered_choices = [ + c + for c in choices + if not hasattr(c, "hint_override") + or c.hint_override == hint_override + ] + timings = self.do_autotuning( + name, + input_nodes, + layout, + input_gen_fns, + inputs_key, + filtered_choices, + precompile_fn, + hint_override=hint_override, + best_config_future=best_config_future, + ) + min_extern_choice = float("inf") + for choice, timing in timings.items(): + if isinstance(choice, ExternKernelCaller): + min_extern_choice = min(min_extern_choice, timing) + + timings = { + choice: time + for choice, time in timings.items() + if ( + time <= min_extern_choice + or not isinstance(choice, ExternKernelCaller) + ) + } + + return timings + + # We take the union of allowed prologue inputs from all choices, + # and, within benchmark fusion, don't allow prologue fusion for + # choices which don't support the whole union. + allowed_prologue_inps: OrderedSet[str] = OrderedSet() + for c in choices: + if isinstance(c, TritonTemplateCaller): + allowed_prologue_inps |= c.allowed_prologue_inps + + return torch._inductor.ir.TensorBox.create( + torch._inductor.ir.MultiTemplateBuffer( + layout, + input_nodes, + get_timings, + choices, + allowed_prologue_inps, + ) + ) + + timings = self.do_autotuning( + name, + input_nodes, + layout, + input_gen_fns, + inputs_key, + choices, + precompile_fn, + best_config_future=best_config_future, + is_collective=is_collective, + ) + # if timings is empty, we really have no choice but to return a semi-random + # choice. returning the first `ExternKernelCaller` is probably the safest bet + # in this case, since it will generally be the ATen kernel. if there are no + # `ExternKernelCaller`s to return, then returning the 0th kernel is our next + # best option (ideally we'd fail whenever there is no ATen kernel to fallback + # to, but that's not trivial to figure out) + if timings == {}: + for choice in choices: + if isinstance(choice, ExternKernelCaller): + node = choice.output_node() + log.debug( + "Autotuning returned empty timings, falling back to first `ExternKernelCaller`: %s", + node, + ) + if return_choice: + return node, choice + return node + node = choices[0].output_node() + choice = choices[0] + log.debug( + "Autotuning returned empty timings, falling back to first choice: %s", + node, + ) + if return_choice: + return node, choice + return node + + # if we got any timings at all, pick the best of those + choice = min(timings, key=timings.__getitem__) + node = choice.output_node() + + log.debug("Autotuning selected choice: %s", node) + if return_choice: + return node, choice + return node + + def benchmark( + self, + choices, + input_nodes, + layout, + input_gen_fns, + hint_override: Optional[int] = None, + is_collective=False, + ): + counters["inductor"]["select_algorithm_autotune"] += 1 + # TODO(nmacchioni): remove this layer of abstraction + # construct `benchmark_fn` which should pick between in-process and sub-process autotuning + benchmark_fn = self.make_benchmark_fn( + choices, + input_nodes, + layout, + input_gen_fns, + hint_override=hint_override, + is_collective=is_collective, + ) + # `benchmark_fn(choices)` will execute each choice, and return a dict[choice, timing] which + # maps each choice to its runtime, calculated by the specified benchmarker, in milliseconds + return benchmark_fn(choices) + + def autotune( + self, + name, + input_nodes, + layout, + input_gen_fns, + choices, + hint_override: Optional[int] = None, + is_collective=False, + ): + log.debug("Starting autotuning") + + with dynamo_timed( + f"{name}_template_autotuning", + log_pt2_compile_event=True, + dynamo_compile_column_us="compile_time_autotune_time_us", + metadata=_autotune_metadata(input_nodes), + ): + benchmark_results = self.benchmark( + choices, + input_nodes, + layout, + input_gen_fns, + hint_override=hint_override, + is_collective=is_collective, + ) + if config.max_autotune_report_choices_stats: + _log_autotune_choices_stats( + f"{name}_template_autotuning", benchmark_results + ) + return benchmark_results + + def do_autotuning( + self, + name, + input_nodes, + layout, + input_gen_fns, + inputs_key, + choices, + precompile_fn, + hint_override: Optional[int] = None, + best_config_future=None, + is_collective=False, + ): + """Execute the autotuning process for kernel algorithm selection. + + This method orchestrates the complete autotuning pipeline including precompilation, + prescreening, benchmarking, and feedback collection to select the optimal kernel + implementation for given inputs. + + Args: + name: Name identifier for the operation being autotuned (e.g., 'mm', 'convolution'). + input_nodes: List of input IR nodes used for benchmarking. + layout: Layout information specifying device and memory format for the operation. + input_gen_fns: Optional dict mapping argument indices to functions that generate + torch.Tensor inputs from ir.Buffer for benchmarking. If provided, these are + used instead of random tensors. + inputs_key: Cache key representing the input characteristics (sizes, strides, dtypes). + choices: List of ChoiceCaller objects representing candidate kernel implementations. + precompile_fn: Callable that precompiles all kernel choices before benchmarking. + hint_override: Optional index to override which choice is selected, used for testing + or forced selection. + best_config_future: Optional future containing pre-determined best configuration to + filter choices by specific config parameters. + + Returns: + dict: Mapping from ChoiceCaller to benchmark timing in seconds. Choices with + non-finite timings (inf/nan) indicate failures. + + Raises: + NoValidChoicesError: When all choices fail to compile or benchmark, or when all + timing results are non-finite. + """ + if log.isEnabledFor(logging.DEBUG): + # Log shape information for debugging timeout issues + sizevars = V.graph.sizevars + shapes = [ + "x".join( + map( + str, + sizevars.size_hints( + node.get_size(), + fallback=config.unbacked_symint_fallback, + hint_override=hint_override, + ), + ) + ) + for node in input_nodes + ] + log.debug( + "[BENCHMARK DEBUG] Starting autotuning for '%s' with shapes: %s, device: %s", + name, + shapes, + layout.device.type if layout else "unknown", + ) + + precompile_start_ts = time.time() + with dynamo_timed( + f"{name}_template_precompiling", + log_pt2_compile_event=True, + dynamo_compile_column_us="compile_time_autotune_time_us", + ): + precompile_fn() + precompile_elapse = time.time() - precompile_start_ts + log.debug("Precompilation elapsed time: %.02fs", precompile_elapse) + # Prune anything that failed to compile + choices = [c for c in choices if not c.failed] + if len(choices) == 0: + raise self.create_no_valid_choices( + name, "All choices failed to compile for backend." + ) + + candidates = self.prescreen_choices( + choices, name, inputs_key, self.prescreening_cache + ) + prescreening_elapse: Optional[float] = None + if candidates: + prescreening_start_ts = time.time() + timings = self.lookup( + candidates, + name, + inputs_key, + lambda choices: self.autotune( + name, + input_nodes, + layout, + input_gen_fns, + choices, + hint_override=hint_override, + ), + hint_override=hint_override, + ) + choices = self.prune_choices_postscreen( + choices, timings, name, inputs_key, self.prescreening_cache + ) + prescreening_elapse = time.time() - prescreening_start_ts + log.debug("Prescreening elapsed time: %.02fs", prescreening_elapse) + + autotune_start_ts = time.time() + + if best_config_future is not None: + best_config = await_sync(best_config_future) + + important_keys = [ + "ACC_TYPE", + "ALLOW_TF32", + "BLOCK_K", + "BLOCK_M", + "BLOCK_N", + "EVEN_K", + "GROUP_M", + "USE_FAST_ACCUM", + "num_stages", + "num_warps", + "num_consumer_groups", + "num_buffers_warp_spec", + ] + choices = [ + choice + for choice in choices + if all( + f"{k}={best_config[k]}" in choice.description + for k in important_keys + ) + for k in important_keys + ] + log.info("Filtered to %d choices based on best_config", len(choices)) + + has_autotuned: bool = False + + def track_has_autotuned(choices): + nonlocal has_autotuned + has_autotuned = True + return self.autotune( + name, + input_nodes, + layout, + input_gen_fns, + choices, + hint_override=hint_override, + is_collective=is_collective, + ) + + timings = self.lookup( + choices, + name, + inputs_key, + track_has_autotuned, + hint_override=hint_override, + ) + + autotune_elapse = time.time() - autotune_start_ts + log.debug("Autotuning elapsed time: %.02fs", autotune_elapse) + + # For collective: if any choice returned inf (timeout or failure), fallback to default + if is_collective and timings: + has_inf = any(not math.isfinite(timing) for timing in timings.values()) + if has_inf: + log.warning( + "At least one choice failed or timed out during collective benchmarking. " + "Falling back to default implementation." + ) + return {} + + # For regular: if all choices returned inf, raise error + if timings and all(not math.isfinite(timing) for timing in timings.values()): + raise NoValidChoicesError + + if ( + has_autotuned + or log.getEffectiveLevel() == logging.DEBUG + or config.trace.log_autotuning_results + ): + self.log_results( + name, + input_nodes, + timings, + autotune_elapse, + precompile_elapse, + prescreening_elapse, + hint_override=hint_override, + is_collective=is_collective, + ) + + def profiler_bench_function(): + # we're not running through the normal caching autotuner method here because we want to avoid returning + # the cached value. + # Avoid benchmarking in a separate process because it's not easy to signal to the TuningProcess that we + # should use the profiler. + with config.patch( + profile_bandwidth_with_do_bench_using_profiling=True, + autotune_in_subproc=False, + ): + return self.benchmark(choices, input_nodes, layout, input_gen_fns) + + for feedback_fn in self.feedback_saver_fns: + # re-benchmarking the same choices with profiler is a bit expensive, so pass it in as a thunk. + feedback_fn( + timings, + name, + input_nodes, + choices, + profiler_bench_function, + ) + + return timings + + def create_no_valid_choices(self, name: str, reason: str) -> NoValidChoicesError: + backend_config = ( + "max_autotune_gemm_backends" + if name != "convolution" + else "max_autotune_conv_backends" + ) + return NoValidChoicesError( + f"No choices to select. Provided reason: {reason} " + f"please consider adding ATEN into {backend_config} " + "config (defined in torch/_inductor/config.py) to allow at least one choice. " + ) + + def make_precompile_fn( + self, + choices, + name: str, + inputs_key: str, + precompilation_timeout_seconds: Optional[int] = 60 * 60, + ) -> Callable[[], None]: + """ + Returns a function that precompiles the given choices. + """ + log.debug("Starting precompilation") + + def no_op(*args, **kwargs): + return + + if ( + precompilation_timeout_seconds is None + or precompilation_timeout_seconds <= 0 + ): + log.debug("Precompilation timeout is None or <= 0, returning no_op") + return no_op + + num_workers = min(get_num_workers(), len(choices)) + + if num_workers <= 0: + return no_op + + # https://github.com/python/cpython/issues/106905 + if ( + sys.version_info.major == 3 + and sys.version_info.minor == 11 + and sys.version_info.micro <= 8 + ): + return no_op + + # check local and global cache before precompiling + timings = self.lookup( + choices, + name, + inputs_key, + benchmark=None, + ) + + if timings and len(timings) == len(choices): + # compilation in precompile stage is much cheaper than that in + # autotuning stage + log.debug("Found all %d timings in cache, returning no_op", len(timings)) + return no_op + + precompile_key = create_precompile_key(name, inputs_key, choices) + if precompile_func := self.precompile_cache.get(precompile_key): + log.debug("Precompile function found in cache, returning it") + return precompile_func + + log.info( + "Multithreaded precompilation for %d choices using %d worker threads", + len(choices), + num_workers, + ) + + # In rare circumstances, because python threads inherit global state, + # thread pool executor can race and leave stdout/stderr in a state + # different than the original values. we explicitly restore the state + # here to avoid this issue. + + def precompile_with_captured_stdout(choice) -> tuple[None, int]: + log.debug("Precompiling choice with captured stdout: %s", choice) + start_ns = time.time_ns() + with restore_stdout_stderr(): + choice.precompile() + elapsed_ns = time.time_ns() - start_ns + # Return tuple as triton async compile (_worker_compile_triton) + # returns tuple[CachingAutotuner, int] + return None, elapsed_ns // 1000 + + def on_complete(future): + if not future.exception(): + _, precompile_elapsed_us = future.result() + elapsed_seconds = precompile_elapsed_us / 1e6 + elapsed_times[future] = elapsed_seconds + log.debug( + "Precompilation complete for future: %s, elapsed time: %.02fs", + future, + elapsed_seconds, + ) + + executor = ThreadPoolExecutor(max_workers=num_workers) + async_compile = torch._inductor.async_compile.AsyncCompile() + + futures: dict[concurrent.futures.Future[Any], ChoiceCaller] = {} + elapsed_times: dict[concurrent.futures.Future[Any], float] = {} + + # Some choices only differ in runtime arguments, so we + # skip a choice if it has the same hash as a previously seen choice + seen_choices: OrderedSet[str] = OrderedSet() + for c in choices: + # Skip choices which we have already issued a precompile + if c.kernel_hash_key() in seen_choices: + log.debug("Skipping already seen choice: %s", c) + continue + else: + seen_choices.add(c.kernel_hash_key()) + + if hasattr(c, "precompile"): + triton_cuda_choice = isinstance(c, TritonTemplateCaller) and isinstance( + c.bmreq, TritonGPUBenchmarkRequest + ) + if triton_cuda_choice and async_compile.use_process_pool(): + with open(c.bmreq.module_path) as file: + source_code = file.read() + future = async_compile.triton( + kernel_name=c.bmreq.kernel_name, source_code=source_code + ).future + log.debug("Submitted triton async compile for choice: %s", c) + else: + future = executor.submit(precompile_with_captured_stdout, c) + log.debug("Submitted precompile for choice: %s", c) + + future.add_done_callback(on_complete) + futures[future] = c + + @functools.cache + @restore_stdout_stderr() + def wait_on_futures(): + log.debug("Waiting on futures") + counters["inductor"]["select_algorithm_precompile"] += 1 + exceptions: list[tuple[ChoiceCaller, BaseException]] = [] + try: + for future in as_completed( + futures, + timeout=precompilation_timeout_seconds, + ): + if e := future.exception(): + counters["inductor"][ + "select_algorithm_num_precompilation_exceptions" + ] += 1 + exceptions.append((futures[future], e)) + log.exception( # noqa: G202 + "Exception %s for benchmark choice %s", + e, + futures[future], + exc_info=e, + ) + futures[future].mark_failed() + else: + counters["inductor"]["select_algorithm_num_precompiles"] += 1 + log.info( + "Precompiling benchmark choice %s took %.02fs", + futures.get(future), + elapsed_times.get(future), + ) + except TimeoutError: + # Don't force the entire process to crash due to a timeout + # in compilation. Just mark those futures as failed. + completed_futures = OrderedSet([f for f in futures if f.done()]) + remaining_futures = OrderedSet(futures.keys()) - completed_futures + + log.warning( + "Precompilation timeout after %ds: %d of %d futures did not complete", + precompilation_timeout_seconds, + len(remaining_futures), + len(futures), + ) + + # Mark remaining futures as failed and log them + for future in remaining_futures: + choice = futures[future] + log.warning( + "Marking choice as failed due to timeout: %s", + choice, + ) + choice.mark_failed() + # Add timeout exception to the exceptions list + timeout_exc = TimeoutError( + f"Precompilation timed out after {precompilation_timeout_seconds}s" + ) + exceptions.append((choice, timeout_exc)) + if exceptions: + _log_autotune_exceptions(exceptions) + + executor.shutdown(wait=True) + + self.precompile_cache[precompile_key] = wait_on_futures + + return wait_on_futures + + @classmethod + def get_inputs( + cls, + choices: Sequence[ChoiceCaller], + input_nodes: list[ir.IRNode], + layout: ir.Layout, + input_gen_fns: Optional[dict[int, Callable[[ir.Buffer], torch.Tensor]]], + hint_override: Optional[int] = None, + ) -> AutotuneArgs: + """ + Factory method to create AutotuneArgs from a list of ChoiceCallers. + """ + if input_gen_fns is None: + input_gen_fns = {} + + # de-duplicate args + unique_example_inputs = { + x.get_name(): input_gen_fns.get( + i, + lambda x: cls.benchmark_example_value(x, hint_override=hint_override), + # pyrefly: ignore [bad-argument-type] + )(x) + for i, x in enumerate(input_nodes) + } + example_inputs = list(unique_example_inputs.values()) + example_inputs_extern = [] + for input_node in input_nodes: + if unique_example_inputs[input_node.get_name()].is_mkldnn: + example_inputs_extern.append( + unique_example_inputs[input_node.get_name()] + ) + else: + base = unique_example_inputs[input_node.get_name()] + base = base if base._base is None else base._base + sizes = tuple( + V.graph.sizevars.atomically_apply_size_hint( + size, + fallback=config.unbacked_symint_fallback, + hint_override=hint_override, + ) + for size in input_node.get_size() + ) + strides = tuple( + V.graph.sizevars.atomically_apply_size_hint( + stride, + fallback=config.unbacked_symint_fallback, + hint_override=hint_override, + ) + for stride in input_node.get_stride() + ) + storage_offset = V.graph.sizevars.atomically_apply_size_hint( + input_node.get_layout().offset, + fallback=config.unbacked_symint_fallback, + hint_override=hint_override, + ) + + # Check if the required storage size exceeds the current storage + # to avoid illegal memory access + needed_size = torch._prims_common.compute_required_storage_length( + sizes, strides, storage_offset + ) + current_size = base.storage().size() + + if needed_size > current_size: + # Create a new base tensor with sufficient storage + new_base = torch.randn( + needed_size, + dtype=base.dtype, + device=base.device, + requires_grad=base.requires_grad, + ) + base = new_base.as_strided( + base.size(), base.stride(), base.storage_offset() + ) + + example_inputs_extern.append( + torch.as_strided(base, sizes, strides, storage_offset) + ) + out = cls.benchmark_example_value(layout, hint_override=hint_override) + + # Also check the output tensor for storage size + out_base = out if out._base is None else out._base + out_offset = V.graph.sizevars.size_hint(layout.offset) + needed_out_size = torch._prims_common.compute_required_storage_length( + out.size(), out.stride(), out_offset + ) + current_out_size = out_base.storage().size() + + if needed_out_size > current_out_size: + # Create a new base tensor with sufficient storage + new_out_base = torch.randn( + needed_out_size, + dtype=out_base.dtype, + device=out_base.device, + requires_grad=out_base.requires_grad, + ) + out_base = new_out_base.as_strided( + out_base.size(), out_base.stride(), out_base.storage_offset() + ) + + out_extern = torch.as_strided(out_base, out.size(), out.stride(), out_offset) + expected = None + if VERIFY: + choices[0].benchmark(*example_inputs_extern, out=out_extern) + expected = out_extern.clone() + + return AutotuneArgs.from_choice_args( + example_inputs, + example_inputs_extern, + out, + out_extern, + expected, + ) + + @staticmethod + def _is_extern(choice: ChoiceCaller) -> bool: + return isinstance(choice, (ExternKernelCaller, SubgraphChoiceCaller)) + + @classmethod + def benchmark_choice( + cls, choice: ChoiceCaller, autotune_args: AutotuneArgs + ) -> float: + benchmark_tensors = autotune_args.get_benchmark_tensors(cls._is_extern(choice)) + inputs, output = benchmark_tensors.unpack() + output.zero_() + result = choice.benchmark(*inputs, out=output) + device_type = next( + (tensor.device.type for tensor in inputs if is_gpu(tensor.device.type)), + "cuda", + ) + device_interface = get_interface_for_device(device_type) + if device_interface.is_available(): + device_interface.synchronize() # shake out any CUDA errors + + if VERIFY and autotune_args.expected is not None: + autotune_args.verify(**VERIFY) + return result + + @classmethod + def _run_collective_benchmark( + cls, + choice: ChoiceCaller, + inputs: tuple, + output: torch.Tensor, + nruns: int, + process_group, + timeout, + ) -> float: + """ + Single function for benchmarking collective operations. + Used for both warmup and actual benchmarking. + + Returns total time in milliseconds, or raises TimeoutError if any collective times out. + """ + import torch.distributed as dist + + work = dist.barrier(group=process_group, async_op=True) + if not work.wait(timeout): + raise TimeoutError("Barrier timeout before benchmarking") + + torch.cuda.synchronize() + + total_time = 0.0 + + for i in range(nruns): + torch.cuda.synchronize() + + start_evt = torch.cuda.Event(enable_timing=True) + end_evt = torch.cuda.Event(enable_timing=True) + + start_evt.record() + choice.benchmark_collective(*inputs, out=output) # type: ignore[attr-defined] + end_evt.record() + end_evt.synchronize() + + total_time += start_evt.elapsed_time(end_evt) + + return total_time + + @classmethod + def benchmark_collective_choice( + cls, + choice: ChoiceCaller, + autotune_args: AutotuneArgs, + ) -> float: + """ + Benchmark a choice for collective operations with cross-rank synchronization. + This method ensures all ranks synchronize before benchmarking + to get accurate measurements for distributed collective operations. + + Timeout/Error handling: If ANY rank times out or encounters an error during + the collective operations, ALL ranks will naturally time out (since the collective + won't complete), allowing the autotuner to fall back to the default implementation. + """ + from datetime import timedelta + + import torch.distributed as dist + + timeout_seconds = config.collective_benchmark_timeout + + nruns = config.collective_benchmark_nruns + nwarmup = ir.autotune_warmup + + # Use default process group (None = all ranks) + process_group = None + rank = dist.get_rank(process_group) + + benchmark_tensors: BenchmarkTensors = autotune_args.get_benchmark_tensors( + cls._is_extern(choice) + ) + inputs, output = benchmark_tensors.unpack() + output.zero_() + + timeout = timedelta(seconds=timeout_seconds) + + try: + # Do n warmups + cls._run_collective_benchmark( + choice, inputs, output, nwarmup, process_group, timeout + ) + + # Do n actual benchmarking runs + total_time = cls._run_collective_benchmark( + choice, inputs, output, nruns, process_group, timeout + ) + + avg_time = total_time / nruns + + # All-reduce to get avg time across ranks + time_tensor = torch.tensor( + [avg_time], dtype=torch.float32, device=f"cuda:{rank}" + ) + work = dist.all_reduce( + time_tensor, + op=dist.ReduceOp.AVG, + group=process_group, + async_op=True, + ) + if not work.wait(timeout): + raise TimeoutError( + "All-reduce timeout when collecting benchmark results" + ) + + timing = time_tensor.item() + + log.info( + "Collective benchmark for %s: %.6f ms", + choice.name, + timing, + ) + + return timing + + except Exception: + log.warning( + "Collective benchmark exception for choice %s. Skipping this choice.", + getattr(choice, "name", ""), + exc_info=True, + ) + return float("inf") + + @classmethod + def benchmark_choices( + cls, + choices: Sequence[ChoiceCaller], + autotune_args: AutotuneArgs, + is_collective: bool = False, + ) -> dict[ChoiceCaller, float]: + """ + Benchmark a list of choices and return timing dict. + """ + if is_collective: + import torch.distributed as dist + + if not dist.is_initialized(): + log.warning( + "Collective op detected but distributed not initialized. " + "Falling back to regular benchmarking." + ) + is_collective = False + else: + rank = dist.get_rank(None) # Use default process group + log.debug( + "Using collective benchmarking for %d choices on rank %d", + len(choices), + rank, + ) + timings = {} + for choice in choices: + try: + if is_collective: + timing = cls.benchmark_collective_choice(choice, autotune_args) + else: + timing = cls.benchmark_choice(choice, autotune_args) + except CUDACompileError: + from torch._inductor.codegen.cuda.cuda_kernel import CUDATemplateCaller + + if not isinstance(choice, CUDATemplateCaller): + log.exception( + "CUDA compilation error during autotuning: \n%s. \nIgnoring this choice." + ) + timing = float("inf") + except NotImplementedError: + log.warning("Not yet implemented", exc_info=True) + timing = float("inf") + except RuntimeError as e: + from torch._inductor.codegen.cuda.cuda_kernel import CUDATemplateCaller + + msg = str(e) + if "invalid argument" in msg: + msg += "\n\nThis may mean this GPU is too small for max_autotune mode.\n\n" + elif "illegal memory access" in msg: + msg += "\n\nEither error in template or triton bug.\n" + elif "unspecified launch failure" in msg: + msg += "\n\nAn unrecoverable unspecified launch failure was caught during autotuning." + msg += "\nPlease try re-running with TORCHINDUCTOR_AUTOTUNE_IN_SUBPROC=1.\n\n" + + if isinstance(choice, CUDATemplateCaller): + log.debug( + "Runtime error during autotuning: \n%s. \nIgnoring this choice.", + msg, + exc_info=True, + ) + else: + log.error( + "Runtime error during autotuning: \n%s. \nIgnoring this choice.", + msg, + ) + timing = float("inf") + except AssertionError as e: + raise AssertionError( # noqa: B904 + f"Incorrect result from choice {choice}\n\n{e}" + ) + except Exception as e: + try: + from triton.runtime.autotuner import OutOfResources + + if isinstance(e, OutOfResources): + log.warning(e) # noqa: G200 + timing = float("inf") + else: + raise e + except ImportError: + raise e from None + + timings[choice] = timing + + # If a collective choice failed or timed out, skip the rest of the choices + if is_collective and not math.isfinite(timing): + log.warning( + "Choice %s failed or timed out during collective benchmarking. " + "Stopping further benchmarking to avoid NCCL corruption.", + getattr(choice, "name", ""), + ) + timings.update({c: float("inf") for c in choices if c not in timings}) + break + + return timings + + @classmethod + def benchmark_in_current_process( + cls, + choices: Sequence[ChoiceCaller], + input_nodes: list[ir.IRNode], + layout: ir.Layout, + input_gen_fns: Optional[dict[int, Callable[[ir.Buffer], torch.Tensor]]], + hint_override: Optional[int] = None, + is_collective=False, + ) -> dict[ChoiceCaller, float]: + inputs = cls.get_inputs( + choices, input_nodes, layout, input_gen_fns, hint_override=hint_override + ) + return cls.benchmark_choices( + choices, + inputs, + is_collective=is_collective, + ) + + @classmethod + def benchmark_in_sub_process( + cls, + choices: Sequence[ChoiceCaller], + input_nodes: list[ir.IRNode], + layout: ir.Layout, + input_gen_fns: Optional[dict[int, Callable[[ir.Buffer], torch.Tensor]]], + hint_override: Optional[int] = None, + ): + from . import autotune_process + + # only benchmark triton kernel in sub process for now. + # ATen/Extern kernel are still benchmarked in the current process. + extern = [c for c in choices if cls._is_extern(c)] + triton = [c for c in choices if not cls._is_extern(c)] + + timings = cls.benchmark_in_current_process( + extern, input_nodes, layout, input_gen_fns, hint_override=hint_override + ) + timings.update(autotune_process.benchmark_in_sub_process(triton)) # type: ignore[arg-type] + return timings + + @classmethod + def make_benchmark_fn( + cls, + choices: Sequence[ChoiceCaller], + input_nodes: list[ir.IRNode], + layout: ir.Layout, + input_gen_fns: Optional[dict[int, Callable[[ir.Buffer], torch.Tensor]]], + hint_override: Optional[int] = None, + is_collective=False, + ): + if DEBUG: + print(f"{len(choices)} tuning requests:") + + # Collective ops must use current process + if is_collective or not config.autotune_in_subproc: + return functools.partial( + cls.benchmark_in_current_process, + input_nodes=input_nodes, + layout=layout, + input_gen_fns=input_gen_fns, + hint_override=hint_override, + is_collective=is_collective, + ) + else: + return functools.partial( + cls.benchmark_in_sub_process, + input_nodes=input_nodes, + layout=layout, + input_gen_fns=input_gen_fns, + hint_override=hint_override, + ) + + @staticmethod + def prescreen_choices( + choices: list[ChoiceCaller], + name: str, + inputs_key: str, + prescreen_cache: dict[str, OrderedSet[str]], + ) -> list[ChoiceCaller]: + """ + Figure out what choices need to be prescreened before autotuning with runtime + params. + + Prescreening is a process of reducing the number of autotuning for choices with + runtime params via a two stage autotuning process. First, we fix a set of runtime + params (here we use swizzle=2) and run autotuning to get a set of candidates. + Then, we run autotuning again with the candidates and the full set of runtime + params. + + Since have the concept of runtime params, we need to differentiate between + choice's hash_key and choice's kernel_hash_key. The former includes information + like runtime params, while the latter does not. prescreen_cache, if exists, stores + the set of hash_key that should win the prescreening. + + Right now, only CUTLASS choices have runtime params. + """ + # Create a cache key for prescreening results + prescreen_key = f"{name}:{inputs_key}" + + # Check if we have cached prescreening results (prescreen_winners) + if prescreen_key in prescreen_cache: + prescreen_winners = [ + choice + for choice in choices + if choice.hash_key() in prescreen_cache[prescreen_key] + ] + return prescreen_winners + + # prescreen cutlass + from .codegen.cuda.cuda_kernel import CUDATemplateCaller + + candidates = [] + if ( + config.cuda.cutlass_prescreening + and len(config.cuda.cutlass_max_profiling_swizzle_options) > 1 + ): + candidates.extend( + [ + c + for c in choices + if isinstance(c, CUDATemplateCaller) + # hardcoded to only look at swizzle=2 + if c.info_dict().get("swizzle") == "2" + ] + ) + + # skip prescreening if the number of candidates is too small + if len(candidates) < 10: + return [] + + return candidates # type: ignore[return-value] + + @staticmethod + def prune_choices_postscreen( + choices: list[ChoiceCaller], + candidate_timings: dict[ChoiceCaller, float], + name: str, + inputs_key: str, + prescreen_cache: dict[str, OrderedSet[str]], + ) -> list[ChoiceCaller]: + """ + Prune the choices after prescreening. + """ + from .codegen.cuda.cuda_kernel import CUDATemplateCaller + + prescreen_key = f"{name}:{inputs_key}" + + # Check if we have cached postscreen results + if prescreen_key in prescreen_cache: + # candidate_timings are from choices that have won prescreening already + winner_kernel_hashes = [ + candidate.kernel_hash_key() for candidate in candidate_timings + ] + + pruned_choices = [ + choice + for choice in choices + if not isinstance(choice, CUDATemplateCaller) + or choice.kernel_hash_key() in winner_kernel_hashes + ] + return pruned_choices + + log.debug("Before pruning using prescreening timings, %d choices", len(choices)) + sorted_candidates = sorted( + candidate_timings.keys(), key=lambda choice: candidate_timings[choice] + ) + + # Print prescreening timings + if ( + candidate_timings + and PRINT_AUTOTUNE + and config.autotune_num_choices_displayed != 0 + ): + n = config.autotune_num_choices_displayed + top_k = sorted_candidates[:n] + best = top_k[0] + best_time = candidate_timings[best] + + lines = ["PRESCREENING CANDIDATE TIMINGS"] + for choice in top_k: + result = candidate_timings[choice] + if result: + lines.append( + f" {choice.name} {result:.4f} ms {best_time / result:.1%} {choice.description}" + ) + else: + lines.append( + f" {choice.name} {result:.4f} ms " + ) + + log.info("\n".join(lines)) + num_to_keep = max(int(math.sqrt(len(choices)) / 4), 8) + + # prune choices based on prescreening timings + candidates_to_prune = OrderedSet( + candidate.kernel_hash_key() for candidate in sorted_candidates[num_to_keep:] + ) + winner_hashes: OrderedSet[str] = OrderedSet() + for candidate in sorted_candidates[:num_to_keep]: + if candidate_timings[candidate] == float("inf"): + candidates_to_prune.add(candidate.kernel_hash_key()) + else: + winner_hashes.add(candidate.hash_key()) + if isinstance(candidate, CUDATemplateCaller): + candidate.bmreq.ensure_dll_loaded() + + pruned_choices = [ + choice + for choice in choices + if choice.kernel_hash_key() not in candidates_to_prune # type: ignore[attr-defined] + ] + + # Cache the hash_key of winners of prescreening + prescreen_cache[prescreen_key] = winner_hashes + + log.debug( + "After pruning using prescreening timings, %d choices", len(pruned_choices) + ) + return pruned_choices + + @staticmethod + def get_flex_attention_choice_info( + choice: ChoiceCaller, timings: dict[ChoiceCaller, float] + ) -> dict[str, Any]: + if isinstance(choice, torch._inductor.select_algorithm.ExternKernelCaller): + return {"type": "extern", "time": timings[choice]} + + assert isinstance(choice, torch._inductor.select_algorithm.TritonTemplateCaller) + + info = choice.info_dict() + result = { + "type": "triton", + "time": timings[choice], + } + + for key in AlgorithmSelectorCache.FLEX_ATTENTION_TUNABLE_KEYS: + if key in info: + # pyrefly: ignore [unsupported-operation] + result[key] = info[key] + + return result + + @staticmethod + def maybe_log_flex_attention_results( + name: str, input_nodes: list[ir.IRNode], timings: dict[ChoiceCaller, float] + ) -> None: + flex_attention_filename = get_flex_attention_log_filename() + if not flex_attention_filename or "flex_attention" not in name: + return + + if len(input_nodes) < 3: + return + + query_size = input_nodes[0].get_size() + key_size = input_nodes[1].get_size() + value_size = input_nodes[2].get_size() + + B = query_size[0] + Hq = query_size[1] + seq_len_q = query_size[2] + qk_head_dim = query_size[3] + Hkv = key_size[1] + seq_len_kv = key_size[2] + v_head_dim = value_size[3] + + kernel_type = "backward" if "backward" in name else "forward" + dims_key = str( + ( + kernel_type, + B, + Hq, + Hkv, + seq_len_q, + seq_len_kv, + qk_head_dim, + v_head_dim, + ) + ) + + sorted_choices = sorted(timings, key=timings.__getitem__) + out_dict = { + dims_key: [ + AlgorithmSelectorCache.get_flex_attention_choice_info(choice, timings) + for choice in sorted_choices + ] + } + append_to_log(flex_attention_filename, out_dict) + + @staticmethod + def log_results( + name: str, + input_nodes: list[ir.IRNode], + timings: dict[ChoiceCaller, float], + elapse: float, + precompile_elapse: float, + prescreening_elapse: Optional[float] = None, + hint_override: Optional[int] = None, + is_collective: bool = False, + ): + """Log the autotuning results, currently only handles mm and flex. Log Collective op autotuning result""" + if is_collective and timings: + import torch.distributed as dist + + # Only rank 0 logs to avoid duplicate logs + rank = dist.get_rank() if dist.is_initialized() else 0 + if rank == 0: + best_choice = min(timings, key=timings.__getitem__) + log.warning("[COLLECTIVE AUTOTUNING] All timings:") + for c, t in sorted(timings.items(), key=lambda x: x[1]): + choice_name = getattr(c, "name", str(c)) + log.warning( + " - %s: %.6f ms %s", + choice_name, + t if math.isfinite(t) else float("inf"), + "← SELECTED" if c == best_choice else "", + ) + + V.debug.log_autotuning_results( + name, input_nodes, timings, elapse, precompile_elapse + ) + if not (config.max_autotune or config.max_autotune_gemm) or not PRINT_AUTOTUNE: + return + sizes = ", ".join( + [ + "x".join( + map( + str, + V.graph.sizevars.size_hints( + n.get_size(), + fallback=config.unbacked_symint_fallback, # type: ignore[arg-type] + hint_override=hint_override, + ), + ) + ) + for n in input_nodes + ] + ) + + strides = ", ".join([str(n.get_stride()) for n in input_nodes]) + dtypes = ", ".join([str(n.get_dtype()) for n in input_nodes]) + if config.autotune_num_choices_displayed == 0: + return + + # when autotune_num_choices_displayed is None, [:None] means all + n = config.autotune_num_choices_displayed + top_k = sorted(timings, key=timings.__getitem__)[:n] + + best = top_k[0] + + def get_choice_info(choice): + if isinstance(choice, torch._inductor.select_algorithm.ExternKernelCaller): + return {"type": "cublas", "time": timings[choice]} + + assert isinstance( + choice, torch._inductor.select_algorithm.TritonTemplateCaller + ) + + info = choice.info_dict() + tile = info["tile_shape"] + + tile_vals = eval(tile) # type: ignore[arg-type] + BLOCK_M = tile_vals[0] + BLOCK_K = tile_vals[1] + BLOCK_N = tile_vals[2] + + return { + "type": "triton", + "time": timings[choice], + "BLOCK_M": BLOCK_M, + "BLOCK_K": BLOCK_K, + "BLOCK_N": BLOCK_N, + "num_stages": info["num_stages"], + "num_warps": info["num_warps"], + } + + mm_filename = get_mm_log_filename() + if mm_filename and "mm" in name: + M, K = input_nodes[-2].get_size()[:2] + N = input_nodes[-1].get_size()[-1] + + out_dict = {str((M, K, N)): [get_choice_info(choice) for choice in timings]} + + append_to_log(mm_filename, out_dict) + + AlgorithmSelectorCache.maybe_log_flex_attention_results( + name, input_nodes, timings + ) + + best_time = timings[best] + sys.stderr.write(f"AUTOTUNE {name}({sizes})\n") + sys.stderr.write(f"strides: {strides}\n") + sys.stderr.write(f"dtypes: {dtypes}\n") + + for choice in top_k: + result = timings[choice] + if result: + kernel_description = choice.description + sys.stderr.write( + f" {choice.name} {result:.4f} ms {best_time / result:.1%} {kernel_description}\n" + ) + else: + sys.stderr.write( + f" {choice.name} {result:.4f} ms \n" + ) + + autotune_type_str = ( + "SubProcess" if config.autotune_in_subproc else "SingleProcess" + ) + prescreening_msg = ( + f" and {prescreening_elapse:.4f} seconds prescreening" + if prescreening_elapse is not None + else "" + ) + sys.stderr.write( + f"{autotune_type_str} AUTOTUNE benchmarking takes {elapse:.4f} seconds and {precompile_elapse:.4f}" + f" seconds precompiling for {len(timings)} choices" + + prescreening_msg + + "\n" + ) + + @staticmethod + def benchmark_example_value(node, hint_override: Optional[int] = None): + """ + Convert an ir.Buffer into a concrete torch.Tensor we can use for + benchmarking. + """ + if isinstance(node, ir.Layout): + node = ir.Buffer(name="fake", layout=node) + # triton templates want the base tensor. + if isinstance(node, ir.BaseView): + node = node.unwrap_view() + + # Inplace padding may reinterpret a tensor to a larger tensor if the + # stride is large enough. The V.graph.get_allocation_size takes this into account. + # So we need call as_strided in the end to 'view' the tensor with the correct + # sizes/strides + return AlgorithmSelectorCache.generate_example_value( + tuple( + V.graph.sizevars.atomically_apply_size_hint( + size, + fallback=config.unbacked_symint_fallback, + hint_override=hint_override, + ) + for size in node.get_size() + ), + tuple( + V.graph.sizevars.atomically_apply_size_hint( + stride, + fallback=config.unbacked_symint_fallback, + hint_override=hint_override, + ) + for stride in node.get_stride() + ), + node.get_device(), + node.get_dtype(), + V.graph.sizevars.atomically_apply_size_hint( + # pyrefly: ignore [missing-attribute] + node.layout.offset, + fallback=config.unbacked_symint_fallback, + hint_override=hint_override, + ), + tuple( + V.graph.sizevars.atomically_apply_size_hint( + size, + fallback=config.unbacked_symint_fallback, + hint_override=hint_override, + ) + # pyrefly: ignore [bad-argument-type] + for size in V.graph.get_allocation_size(node) + ), + ) + + @staticmethod + def generate_example_value( + size, stride, device, dtype, extra_size, allocation_size=None + ): + # preserve rng states to avoid the rand_strided call below changes + # the rng states for the real model code. + with preserve_rng_state(): + if allocation_size is None or allocation_size == size: + return rand_strided( + size, + stride, + device=device, + dtype=dtype, + extra_size=extra_size, + ) + else: + return rand_strided( + allocation_size, + stride, + device=device, + dtype=dtype, + extra_size=extra_size, + ).as_strided(size, stride) + + @staticmethod + def key_of(node): + """ + Extract the pieces of an ir.Buffer that we should invalidate cached + autotuning results on. + """ + sizevars = V.graph.sizevars + return ( + node.get_device().type, + str(node.get_dtype()), + *sizevars.size_hints( + node.get_size(), + fallback=config.unbacked_symint_fallback, + ), + *tuple( + V.graph.sizevars.atomically_apply_size_hint( + stride, + fallback=config.unbacked_symint_fallback, + ) + for stride in node.get_stride() + ), + sizevars.size_hint( + node.get_layout().offset, + fallback=config.unbacked_symint_fallback, + ), + ) + + def add_feedback_saver(self, fn: FeedbackFunction): + self.feedback_saver_fns.append(fn) + + def clear_feedback_savers(self): + self.feedback_saver_fns = [] + + def add_preprocessing_fn(self, fn: PreprocessingFunction): + self.preprocessing_fns.append(fn) + + def clear_preprocessing_fns(self, clear_defaults: bool = False): + """Clear preprocessing functions. + + Args: + clear_defaults: If True, clears all functions including defaults. + If False, clears only user-added functions and re-registers defaults. + """ + self.preprocessing_fns.clear() + if not clear_defaults: + self._register_default_preprocessing_fns() + + +_ALGORITHM_SELECTOR_CACHE: Optional[AlgorithmSelectorCache] = None + + +def get_algorithm_selector_cache() -> AlgorithmSelectorCache: + """Get the global algorithm selector cache, creating it if it doesn't exist.""" + global _ALGORITHM_SELECTOR_CACHE + if _ALGORITHM_SELECTOR_CACHE is None: + _ALGORITHM_SELECTOR_CACHE = AlgorithmSelectorCache() + return _ALGORITHM_SELECTOR_CACHE + + +def autotune_select_algorithm(*args, **kwargs): + cache = get_algorithm_selector_cache() + + if "return_multi_template" not in kwargs: + kwargs["return_multi_template"] = ( + torch._inductor.config.benchmark_epilogue_fusion + ) + + if "precompilation_timeout_seconds" not in kwargs: + kwargs["precompilation_timeout_seconds"] = config.precompilation_timeout_seconds + + return cache(*args, **kwargs) + + +def add_feedback_saver( + fn: FeedbackFunction, +): + cache = get_algorithm_selector_cache() + cache.add_feedback_saver(fn) + + +def clear_feedback_savers(): + """Clear all feedback saver functions.""" + cache = get_algorithm_selector_cache() + cache.clear_feedback_savers() + + +def add_preprocessing_fn( + fn: PreprocessingFunction, +): + """Add a preprocessing function to be applied to choices before autotuning. + + Preprocessing functions are called sequentially in the order they were registered, + with each function receiving the output of the previous one. They can filter, + reorder, transform, or modify the list of choices in any way. + + Args: + fn: A function that takes a list of ChoiceCaller objects and returns + a modified list of ChoiceCaller objects. + + Example: + def my_filter(choices): + # Filter out choices with certain names + return [c for c in choices if 'slow' not in c.name.lower()] + + add_preprocessing_fn(my_filter) + """ + cache = get_algorithm_selector_cache() + cache.add_preprocessing_fn(fn) + + +def clear_preprocessing_fns(clear_defaults: bool = False): + """Clear preprocessing functions at module level. + + Args: + clear_defaults: If True, clears all functions including defaults. + If False, clears only user-added functions and re-registers defaults. + """ + cache = get_algorithm_selector_cache() + cache.clear_preprocessing_fns(clear_defaults) + + +def realize_inputs(*args): + if len(args) == 1: + return ir.ExternKernel.require_stride1(ir.ExternKernel.realize_input(args[0])) + return [realize_inputs(x) for x in args] + + +class SymbolicGridFn: + """ + Wrapper around a grid function that allows either int or sympy inputs. + + @SymbolicGridFn + def grid(x, meta, *, cdiv): + return cdiv(x, meta["BLOCK_X"]) + """ + + def __init__(self, fn: Callable[..., tuple[Any, Any, Any]]): + self.fn = fn + self.kwargs_int = {} + self.kwargs_sym = {} + params = inspect.signature(fn).parameters + for name, fn_sym, fn_int in [ + ("cdiv", CeilDiv, ceildiv), + ("min", sympy.Min, min), + ("max", sympy.Max, max), + ]: + if name in params: + self.kwargs_int[name] = fn_int + self.kwargs_sym[name] = fn_sym + + def __call__(self, *args, **kwargs) -> tuple[int, int, int]: + return self.fn(*args, **kwargs, **self.kwargs_int) + + def sympy_call(self, *args, **kwargs): + return self.fn(*args, **kwargs, **self.kwargs_sym) + + +def _autotune_metadata(input_nodes): + """Helper function to extract autotune metadata from input nodes.""" + return { + "autotune_strides": ", ".join([str(n.get_stride()) for n in input_nodes]), + "autotune_dtypes": ", ".join([str(n.get_dtype()) for n in input_nodes]), + "autotune_shape": ", ".join( + ["x".join(map(str, n.get_size())) for n in input_nodes] + ), + "autotune_offset": ", ".join([str(n.get_layout().offset) for n in input_nodes]), + # TODO(coconutruben): replace this with taking KernelInputs as the + # argument, and extracting those out there directly + "autotune_strides_hinted": ", ".join( + [ + str( + V.graph.sizevars.size_hints( + n.get_stride(), + fallback=config.unbacked_symint_fallback, + ) + ) + for n in input_nodes + ] + ), + "autotune_shape_hinted": ", ".join( + [ + "x".join( + map( + str, + V.graph.sizevars.size_hints( + n.get_size(), + fallback=config.unbacked_symint_fallback, + ), + ) + ) + for n in input_nodes + ] + ), + } + + +def _log_autotune_choices_stats( + event_name: str, timings: dict[ChoiceCaller, float] +) -> None: + """Helper function to extract autotune metadata from benchmark results.""" + if not timings: + return None + + metadata: dict[str, Union[int, float, str]] = { + "num_choices": len(timings), + "num_triton_choices": len( + [c for c in timings if isinstance(c, TritonTemplateCaller)] + ), + } + + sorted_choices = sorted(timings, key=timings.__getitem__) + best_choice = sorted_choices[0] + metadata["best_kernel"] = best_choice.name + if best_choice.description: + metadata["best_kernel_desc"] = best_choice.description + metadata["best_time"] = timings[best_choice] + + best_triton_pos = next( + ( + i + for i, choice in enumerate(sorted_choices) + if isinstance(choice, TritonTemplateCaller) + ), + None, + ) + if best_triton_pos is not None: + metadata["best_triton_pos"] = best_triton_pos + best_triton_kernel = sorted_choices[best_triton_pos] + if best_triton_pos != 0: + metadata["best_triton_time"] = timings[best_triton_kernel] + metadata["best_triton_kernel"] = best_triton_kernel.name + if best_triton_kernel.description: + metadata["best_triton_kernel_desc"] = best_triton_kernel.description + + payload = json.dumps(metadata) + get_chromium_event_logger().add_event_data( + event_name, autotune_choices_stats=payload + ) + sys.stderr.write(f"Autotune Choices Stats:\n{payload}\n") + + +def _log_autotune_exceptions( + exceptions: list[tuple[ChoiceCaller, BaseException]], +) -> None: + """Log autotune exceptions to chromium event logger.""" + if not exceptions: + return + + try: + pt2_compile_substack = get_chromium_event_logger().get_pt2_compile_substack() + if not pt2_compile_substack: + return + + current_event = pt2_compile_substack[-1] + if not current_event.endswith("_template_precompiling"): + return + + exception_details = [] + for choice, exc in exceptions: + try: + choice_type = ( + "triton" if isinstance(choice, TritonTemplateCaller) else "other" + ) + data = { + "choice_type": choice_type, + "choice": choice.description, + "exception_message": str(exc), + } + + exc_type_match = re.search(r"(\w+):", str(exc)) + if exc_type_match: + data["exception"] = exc_type_match.group(1) + + if "OutOfMemoryError" in str(exc): + required_match = re.search(r"Required: (\d+)", str(exc)) + if required_match: + data["required_memory"] = required_match.group(1) + + limit_match = re.search(r"Hardware limit:\s*(\d+)", str(exc)) + if limit_match: + data["hardware_limit"] = limit_match.group(1) + + exception_details.append(data) + except Exception: + # Don't let logging errors break the main flow + continue + + if exception_details: + metadata = json.dumps({"exceptions": exception_details}) + get_chromium_event_logger().try_add_event_data( + current_event, metadata=metadata + ) + except Exception: + # Silently ignore logging errors to avoid breaking autotune + pass + + +# ensure lowering is imported so that `extern_kernels.*` is populated +from . import lowering # noqa: F401 diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/shape_propagation.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/shape_propagation.py new file mode 100644 index 0000000000000000000000000000000000000000..23a771a024efa4924c5894636769ff05ca9095db --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/shape_propagation.py @@ -0,0 +1,154 @@ +import functools +from collections.abc import Callable, Sequence +from typing import Optional, Protocol, Union + +import sympy + +import torch + +from .virtualized import OpsValue, V + + +BlockShapeType = Optional[Sequence[Union[int, str]]] + + +class ShapeVar(Protocol): + @property + def shape(self) -> BlockShapeType: ... + + +ShapeArg = Union[ShapeVar, torch.types.Number, str, OpsValue, torch.dtype] + +# Inputs need to be cacheable (e.g., not a CSEVar) in order for the cache to be effective +# So first decompose CSEVars -> tuple before calling this + + +@functools.lru_cache(None) +def get_broadcasted_shape(a: BlockShapeType, b: BlockShapeType) -> BlockShapeType: + assert isinstance(a, Sequence) + assert isinstance(b, Sequence) + if len(a) > len(b): + return get_broadcasted_shape(a, (*[1] * (len(a) - len(b)), *b)) + elif len(a) < len(b): + b, a = a, b + return get_broadcasted_shape(a, (*[1] * (len(a) - len(b)), *b)) + else: + + def _get_broadcasted_dim( + d1: Union[int, str], d2: Union[int, str] + ) -> Union[int, str]: + if str(d1) == "1": + return d2 + elif str(d2) == "1": + return d1 + assert str(d1) == str(d2) + return d1 + + return tuple(_get_broadcasted_dim(d1, d2) for d1, d2 in zip(a, b)) + + +def broadcast_shapes_for_args(args: Sequence[ShapeArg]) -> BlockShapeType: + result_shape: BlockShapeType = None + + for arg in args: + if hasattr(arg, "shape"): + shape = arg.shape + if shape is None: + return None + elif result_shape is None: + result_shape = tuple(shape) + else: + result_shape = get_broadcasted_shape(result_shape, tuple(shape)) + elif isinstance(arg, (int, float)): + if result_shape is None: + result_shape = () + elif isinstance(arg, torch.dtype): + continue + else: + from torch._inductor.loop_body import LoopBody, LoopBodyBlock + + if isinstance(arg, (LoopBodyBlock, LoopBody, OpsValue)): + # TODO: fix me + return None + raise TypeError(f"Unknown type: {type(arg)}") + + return result_shape + + +class ShapePropagationOpsHandler: + """ + Propagate shape from args to output + """ + + @staticmethod + def constant(value: torch.types.Number, dtype: torch.dtype) -> BlockShapeType: + # See implementation of constant for triton for the reason + from torch._inductor.codegen.triton import triton_compute_type, TritonKernel + + triton_type = triton_compute_type(dtype) + + if isinstance(V.kernel, TritonKernel) and triton_type != "tl.float32": + ndim = V.kernel.triton_tensor_ndim() + return tuple([1] * ndim) + else: + return () + + @staticmethod + def store_reduction(name: str, index: int, value: ShapeArg) -> None: + return None + + @staticmethod + def reduction( + dtype: torch.dtype, + src_dtype: torch.dtype, + reduction_type: str, + value: Union[ShapeArg, tuple[ShapeArg, ...]], + ) -> Union[BlockShapeType, tuple[BlockShapeType, ...]]: + raise NotImplementedError + + @staticmethod + def store( + name: str, index: int, value: ShapeArg, mode: Optional[str] = None + ) -> None: + return None + + @staticmethod + def to_dtype( + value: ShapeVar, + dtype: torch.dtype, + src_dtype: Optional[torch.dtype] = None, + use_compute_types: bool = True, + ) -> BlockShapeType: + return value.shape + + @staticmethod + def dot(a: sympy.Expr, b: sympy.Expr) -> BlockShapeType: + from torch._inductor.codegen.triton import TritonKernel + + assert isinstance(V.kernel, TritonKernel), "dot supports Triton only" + return ("YBLOCK", "XBLOCK") + + @staticmethod + def index_expr(expr: sympy.Expr, dtype: torch.dtype) -> BlockShapeType: + # shape is implicitly embedded in expr. + return None + + @staticmethod + def load_seed(name: str, offset: int) -> BlockShapeType: + return () + + @staticmethod + def indirect_indexing( + var: ShapeArg, + size: Union[sympy.Expr, int], + check: bool = True, + wrap_neg: bool = True, + ) -> None: + return None + + def __getattr__(self, name: str) -> Callable[..., BlockShapeType]: + return lambda *args, **kwargs: broadcast_shapes_for_args(args) + + @staticmethod + def device_assert_async(cond: ShapeArg, msg: str) -> None: + return None diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/sizevars.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/sizevars.py new file mode 100644 index 0000000000000000000000000000000000000000..77526a38aeb37f3919612f1ce698787f4b0bc3fd --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/sizevars.py @@ -0,0 +1,1205 @@ +# mypy: allow-untyped-defs +import functools +import itertools +import logging +from collections import defaultdict +from collections.abc import Callable, Iterable, Sequence +from typing import Any, cast, Optional, Union + +import sympy +from sympy import Expr + +from torch.fx.experimental.symbolic_shapes import ( + free_symbols, + has_free_unbacked_symbols, + ShapeEnv, +) +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.functions import FloorDiv, ModularIndexing +from torch.utils._sympy.symbol import symbol_is_type, SymT +from torch.utils._sympy.value_ranges import bound_sympy, IntInfinity, ValueRanges + +from .runtime.runtime_utils import is_power_of_2 +from .utils import ( + has_free_symbols, + sympy_index_symbol, + sympy_index_symbol_with_prefix, + sympy_subs, + VarRanges, +) +from .virtualized import V + + +log = logging.getLogger(__name__) + + +def statically_known_true( + shape_env: ShapeEnv, + expr: Union[sympy.Basic, bool], + axioms: Optional[tuple[sympy.Expr]] = None, + var_to_range: Optional[tuple[tuple[sympy.Symbol, ValueRanges[Any]]]] = None, +) -> bool: + if expr in (True, False): + return bool(expr) + + try: + simplified = shape_env._maybe_evaluate_static( + expr, + axioms=axioms, + var_to_range=var_to_range, + ) + if simplified is not None: + return bool(simplified) + except Exception: + log.debug("Could not simplify %s", expr, exc_info=True) + + return False + + +# This class is a little awkward, because ShapeEnv is doing most of the heavy +# lifting and in some cases we should be directly passing through to ShapeEnv, +# but there is some extra inductor logic that needs to be handled here +class SizeVarAllocator: + """ + A class that manages symbolic size variables and their relationships. + + This class works with the ShapeEnv to handle symbolic shape expressions, + simplify them, and provide utilities for guarding, checking, and evaluating + symbolic expressions. It also manages precomputed replacements and stride + calculations for tensor operations. + """ + + def __init__(self, shape_env=None) -> None: + super().__init__() + # Note: this can lead to bugs. Reasoning APIs depends on existing information in + # in the shape_env. For example! var_to_ranges can't be empty! + if shape_env is None: + shape_env = ShapeEnv() + self.shape_env = shape_env + self.var_to_val = self.shape_env.var_to_val + self.var_to_hint_override = self.shape_env.var_to_hint_override + self.replacements: dict[sympy.Symbol, Expr] = self.shape_env.replacements + self.unbacked_replacements: Optional[dict[Expr, Expr]] = None + # Maps of dynamic sizes that have to be precomputed on the host to the kernel args. + # The basic idea is if we have some complicated sympy expression + # f(s0), we may choose to precompute it on the host and then replace + # all occurrences of that sympy expression with ps0, so that when we + # codegen we simply reference ps0 directly without repeating + # f(s0). Unlike regular size variables, ps variables cannot be + # guarded upon; so if we are asked to guard on a Sympy expression + # which potentially could have already had a precomputed replacement + # on it, we are obligated to invert the precomputed replacements + # (inv_precomputed_replacements). + self.precomputed_replacements: dict[Expr, sympy.Symbol] = {} + self.inv_precomputed_replacements: dict[sympy.Symbol, Expr] = {} + self.stride_vars = self.make_stride_vars_cache() + self.simplify_with_ranges = self.make_simplify_with_ranges_cache() + self._simplify_loops = self.make_simplify_loops_cache() + + def simplify(self, expr: Expr): + return sympy.expand(expr).xreplace(self.replacements) + + def make_simplify_with_ranges_cache(self) -> Callable[[Expr, VarRanges], Expr]: + """ + self._simplify_with_ranges() can be expensive, cache its results + """ + cache: dict[tuple[Any, ...], Expr] = {} + replacement_count = len(self.replacements) + + def simplify_with_ranges(expr: Expr, var_ranges: VarRanges) -> Expr: + nonlocal replacement_count + if replacement_count != len(self.replacements): + # new replacements invalidates cached results + cache.clear() + replacement_count = len(self.replacements) + key = (expr, *var_ranges.items()) + result = cache.get(key) + if result is None: + result = self._simplify_with_ranges(expr, var_ranges) + cache[key] = result + if result != expr: + cache[(result, *var_ranges.items())] = result + return result + + return simplify_with_ranges + + def make_simplify_loops_cache(self): + """ + self._simplify_with_ranges() can be expensive, cache its results + """ + cache: dict[tuple[Any, ...], Any] = {} + replacement_count = len(self.replacements) + + def simplify_loops(index_vars, sizes, index_formulas): + nonlocal replacement_count + if replacement_count != len(self.replacements): + # new replacements invalidates cached results + cache.clear() + replacement_count = len(self.replacements) + key = (*index_vars, *sizes, *index_formulas) + result = cache.get(key) + if result is None: + result = self._simplify_loops_impl(index_vars, sizes, index_formulas) + cache[key] = result + return result + + return simplify_loops + + def _simplify_with_ranges(self, expr: Expr, var_ranges: VarRanges) -> Expr: + """ + Simplify indexing expression with knowledge of the ranges of + iteration variables. + """ + + expr = join_dimensions(self.simplify(expr)) + original_expr = expr + + var_to_range = dict(self.shape_env.var_to_range) + var_to_range.update( + { + k: ValueRanges( + 0, max(0, v - 1) if not has_free_symbols([v]) else IntInfinity() + ) + for k, v in var_ranges.items() + } + ) + for var in expr.free_symbols: + if var not in var_to_range: + var_to_range[var] = ValueRanges(0, IntInfinity()) + + var_to_range_tuple = cast( + tuple[tuple[sympy.Symbol, ValueRanges[sympy.Expr]]], + tuple(var_to_range.items()), + ) + + axioms = [] + for var, upper_bound in var_ranges.items(): + axioms.append(0 <= var) + axioms.append(var < upper_bound) + axioms = tuple(axioms) + self.shape_env.get_axioms() + + def statically_known(expr): + evaluated = self.shape_env._maybe_evaluate_static( + expr, + # pyrefly: ignore [bad-argument-type] + axioms=axioms, + var_to_range=var_to_range_tuple, + ) + return bool(evaluated) + + def remove_zero_terms(base, divisor): + """Symbols smaller than the divisor are zero""" + if not statically_known(base >= 0): + return base + + for v in base.free_symbols: + if v in var_ranges: + # var smaller than divisor can be removed + # if the rest is guaranteed to be multiple of divisor + rest = sympy.Wild("_rest", exclude=[v]) + m = base.match(v + rest) + if m and v not in m[rest].free_symbols: + gcd = sympy.gcd(m[rest], divisor) + if gcd == divisor: + if statically_known(v < divisor): + base = m[rest] + return base + + def visit_indexing_div(base, divisor): + return FloorDiv(remove_zero_terms(base, divisor), divisor) + + def visit_modular_indexing(base, divisor, modulus): + base = remove_zero_terms(base, divisor) + + can_remove_mod = statically_known(base >= 0) and statically_known( + base < modulus * divisor + ) + + if can_remove_mod: + return FloorDiv(base, divisor) + return ModularIndexing(base, divisor, modulus) + + if expr.has(ModularIndexing): + expr = expr.replace( + ModularIndexing( + sympy.Wild("base", integer=True), + sympy.Wild("divisor", integer=True), + sympy.Wild("modulus", integer=True), + ), + visit_modular_indexing, + ) + + if expr.has(FloorDiv): + expr = expr.replace( + FloorDiv( + sympy.Wild("base", integer=True), + sympy.Wild("divisor", integer=True), + ), + visit_indexing_div, + ) + + if expr != original_expr: + return self._simplify_with_ranges(expr, var_ranges) + return expr + + def _simplify_loops_impl( + self, index_vars: list[sympy.Symbol], sizes, index_formulas + ): + """ + Try to remove as many axis from loop iterations as possible, by: + 1) removing size==1 dimensions + 2) fuse contiguous dimensions into a single loop + If channel_last = True, we will prevent the last dim fused with other dims + """ + sizes = list(map(self.simplify, sizes)) + + strides = [ + # index_formulas may contain boolean expressions (e.g. s0 < 10), + # for which "strides" don't make sense so we ignore them here. + # NOTE: These expressions may still block merging dims in the sound + # substitution test performed in can_merge_dims. + ( + self.stride_vars(x, index_vars) + if isinstance(x, sympy.Expr) + else [0] * len(index_vars) + ) + for x in index_formulas + ] + assert len(sizes) == len(strides[0]), (len(sizes), len(strides[0])) + + for i in range(len(sizes)): + if sizes[i] == 1: + # remove dim + sizes[i] = None + + def can_merge_dims(a, b): + for k in range(len(strides)): + if self.simplify(strides[k][a] * sizes[a]) == self.simplify( + strides[k][b] + ): + # approximate test passed, try sound version + va = index_vars[a] + vb = index_vars[b] + m1 = sympy_index_symbol("_merge_tester1") + m2 = sympy_index_symbol("_merge_tester2") + # NOTE: can't sub vb=0 here in case va * vb appears in the expression, + # in which case both expr1 and expr2 would be zero! + expr1 = sympy_subs(index_formulas[k], {va: m1 * sizes[a], vb: m2}) + expr2 = sympy_subs(index_formulas[k], {va: 0, vb: (m1 + m2)}) + if self.simplify(expr1) == self.simplify(expr2): + continue + return False + return True + + changed = True + while changed: + changed = False + for i, j in itertools.product( + reversed(range(len(sizes))), reversed(range(len(sizes))) + ): + if i == j or sizes[i] is None or sizes[j] is None: + continue + if can_merge_dims(i, j): + changed = True + sizes[i] = sizes[i] * sizes[j] + sizes[j] = None + + def reindex(index): + it = list(reversed(index)) + new_index = [] + for size in sizes: + if size is None: + new_index.append(sympy.S.Zero) + else: + new_index.append(it.pop()) + assert not it + return new_index + + def prune(index): + assert len(index) == len(sizes) + return [i for i, s in zip(index, sizes) if s is not None] + + return [x for x in sizes if x is not None], reindex, prune + + # Note - [On Statically Known] + # The statically_known_* family of functions below NEVER guard, they could return True if the + # asked questions can be answered without guarding otherwise they return False. + # Those are similar to statically_known_true in symbolic_shapes.py but operate on sympy + # expressions instead of symnodes. + def statically_known_true(self, expr: Union[sympy.Basic, bool]) -> bool: + """ + Returns true if an expression is always true (symbolically or via guards), + false otherwise. Never add guards, or throw data dependent errors. + """ + return statically_known_true(self.shape_env, expr) + + def statically_known_equals( + self, left: Union[Expr, int], right: Union[Expr, int] + ) -> bool: + """ + Returns a bool indicating if it is sound to optimize as if left and right are equal. + """ + return self.statically_known_true(sympy.Eq(left, right)) # type: ignore[arg-type] + + def statically_known_list_equals( + self, left: Sequence[Expr], right: Sequence[Expr] + ) -> bool: + """ + Returns a bool indicating if it is sound to optimize as if left and right lists are equal. + """ + return len(left) == len(right) and all( + self.statically_known_equals(l, r) for l, r in zip(left, right) + ) + + def statically_known_leq(self, left: Expr, right: Union[Expr, int]) -> bool: + """ + Returns a bool indicating if it is sound to optimize as if left is less than or equal to right. + """ + expr = left <= right + return self.statically_known_true(expr) + + def statically_known_geq(self, left: Expr, right: Union[Expr, int]) -> bool: + """ + Returns a bool indicating if it is sound to optimize as if left is greater than or equal to right. + """ + expr = left >= right + return self.statically_known_true(expr) + + def statically_known_lt(self, left: Expr, right: Union[Expr, int]) -> bool: + """ + Returns a bool indicating if it is sound to optimize as if left is less than right. + """ + expr = left < right + return self.statically_known_true(expr) + + def statically_known_gt(self, left: Expr, right: Union[Expr, int]) -> bool: + """ + Returns a bool indicating if it is sound to optimize as if left is greater than right. + """ + expr = left > right + return self.statically_known_true(expr) + + def statically_known_multiple_of( + self, numerator: Expr, denominator: Union[Expr, int] + ) -> bool: + """ + Return a bool indicating if it is sound to optimize for the numerator being a multiple of the denominator. + """ + # The reason we skip compute here is to avoid the cost of trying to eval this symbolically. + # see https://github.com/sympy/sympy/issues/28200 + if has_free_unbacked_symbols(numerator) or has_free_unbacked_symbols( + denominator + ): + return False + + if len(free_symbols(numerator)) > 20: + return False + + expr = sympy.Eq(numerator % denominator, 0) + return self.statically_known_true(expr) # type: ignore[arg-type] + + def statically_known_power_of_2(self, expr: Expr) -> bool: + """ + Returns a bool indicating if x is known to be a power of 2. + """ + return isinstance(expr, sympy.Integer) and is_power_of_2(int(expr)) + + # The expect/check functions require you to ALREADY KNOW that a particular + # condition holds. They are similar to expect_true in symbolic_shapes.py and + # torch.check but operates on sympy expressions instead of symnodes. + def expect_true(self, expr: Expr) -> bool: + """ + Use it when you already know that expr is true or should be true and want to + ensure that guards/runtime assertions are in place to ensure this in compiled + function. Unlike check, this WON'T raise an error if expr isn't actually true. + check Note [expect_true]. + """ + if not self.statically_known_true(expr): + return self.shape_env.guard_or_defer_runtime_assert( + expr, "sizevars.expect_true" + ) + return True + + def check(self, expr: Expr) -> None: + """ + Use it when you already know that expr is true or should be true and want to + ensure that guards/runtime assertions are in place to ensure this in compiled + function. Unlike expect_true, this WILL raise an error if expr isn't actually true. + check Note [expect_true]. + """ + expr = sympy_subs(expr, self.inv_precomputed_replacements) + assert self.expect_true(expr) + + def check_equals(self, left: Expr, right: Expr) -> None: + """ + check(sympy.Eq(left, right)). + + """ + self.check(sympy.Eq(left, right)) + return left + + def check_equals_and_simplify(self, left: Expr, right: Expr) -> Expr: + """ + check(sympy.Eq(left, right)) and returns left after applying + inv_precomputed_replacements. + """ + self.check(sympy.Eq(left, right)) + return sympy_subs(left, self.inv_precomputed_replacements) + + def check_leq(self, left: Expr, right: Expr) -> None: + self.check(sympy.Le(left, right)) + + def check_lt(self, left: Expr, right: Expr) -> None: + self.check(sympy.Lt(left, right)) + + # Similar to the functions guard_or_false/guard_or_true in symbolic_shapes.py + # but operates on sympy expressions instead of symnodes. see Note [guard_or_]. + def guard_or_false(self, left): + import torch.fx.experimental._config as exp_config + + if exp_config.backed_size_oblivious: + static_val = self.shape_env._maybe_evaluate_static(left) + if static_val is not None: + return static_val + return False + return self.evaluate_expr(left, fallback_value=False) + + def guard_or_true(self, left): + import torch.fx.experimental._config as exp_config + + if exp_config.backed_size_oblivious: + static_val = self.shape_env._maybe_evaluate_static(left) + if static_val is not None: + return static_val + return True + return self.evaluate_expr(left, fallback_value=True) + + # The evaluate functions evaluate some symbolic sympy expression + # (NB: not necessarily an Expr) and return what the concrete result + # is, guarding on the expression being that result + + # NB: write evaluate_expr(sympy.Lt(a, b)) rather than evaluate_expr(a < b) + # as this will ensure that you actually have a sympy'ified expression, + # and will prevent you from incorrectly writing evaluate_expr(a == b) + # which does the wrong thing if a or b is a sympy expression + def evaluate_expr( + self, + left: Union[Expr, sympy.logic.boolalg.Boolean], + size_oblivious: bool = False, + fallback_value: Optional[bool] = None, + ) -> bool: + assert isinstance(left, (Expr, sympy.logic.boolalg.Boolean)), type(left) + return self.shape_env.evaluate_expr( + sympy.sympify(left), + size_oblivious=size_oblivious, + fallback_value=fallback_value, + ) + + def is_size_one_or_false(self, size: Expr) -> bool: + """Return True if size equals 1. + + Unbacked symbolic sizes return False without introducing a guard. + """ + return self.guard_or_false(sympy.Eq(size, 1)) + + def evaluate_min(self, left: Expr, right: Expr) -> Expr: + """return the smaller of left and right, and guard on that choice""" + if isinstance(left, Expr): + left = sympy_subs(left, self.inv_precomputed_replacements) # type: ignore[arg-type] + if isinstance(right, Expr): + right = sympy_subs(right, self.inv_precomputed_replacements) # type: ignore[arg-type] + try: + lv = self.size_hint_or_throw(left) + rv = self.size_hint_or_throw(right) + except TypeError: # unbacked symints + if left == right or self.statically_known_leq(left, right): + return left + if self.statically_known_leq(right, left): + return right + gcd = sympy.gcd(left, right) + if left == gcd: # handle `min(10*u0, u0)` etc + return left + if right == gcd: + return right + raise TypeError( + f"evaluate_min({left}, {right}) with unbacked symints" + ) from None + if lv <= rv: + self.check_leq(left, right) + return left + else: + self.check_leq(right, left) + return right + + def evaluate_max(self, left: Expr, right: Expr) -> Expr: + """return the larger of left and right, and guard on that choice""" + # Always choose the opposite of eval min for consistency + # This means min(a, b) and max(a, b) produce the same guards + min_val = self.evaluate_min(left, right) + return right if min_val is left else left + + def guard_int(self, expr: Union[Expr, int]) -> int: + """ + Similar to guard_int in symbolic_shapes.py, except this function works with SymPy + expressions instead of SymNodes. It extracts the value represented by expr from shapeEnv + and specialize the compiled graph on it. Raises an error if the result cannot be + determined due to unhinted or unbacked symbols. + """ + if isinstance(expr, int): + return expr + val = self.size_hint_or_throw(expr) + self.check_equals(expr, sympy.Integer(val)) + return int(val) + + def guard_int_seq(self, left: Sequence[Union[Expr, int]]) -> list[int]: + """ + Apply guard_int on a sequence of inputs. + """ + return [self.guard_int(x) for x in left] + + def remove_precomputed_replacements(self, expr: Expr) -> Expr: + if any(symbol_is_type(s, SymT.PRECOMPUTED_SIZE) for s in expr.free_symbols): # type: ignore[attr-defined] + return sympy_subs(expr, self.inv_precomputed_replacements) # type: ignore[arg-type] + return expr + + def symbolic_hint( + self, + expr: Union[Expr, int], + hint_override: Optional[int] = None, + # Only flip this flag if you don't plan on guarding/adding runtime + # asserts based on this value and promise to only use this value + # in a heuristic nature. + use_user_provided_hint_override: bool = False, + ) -> Union[Expr, int]: + if isinstance(expr, int): + return expr + # Substitute all hints into expr, but leave unbacked symints alone + expr = self.simplify(expr) + if not isinstance(expr, Expr): + assert isinstance(expr, int) + return expr + free_symbols = expr.free_symbols + if not free_symbols: + try: + return int(expr) # type: ignore[return-value] + except TypeError: + return expr # inf/nan/I + + if hint_override: + return hint_override + + expr = self.remove_precomputed_replacements(expr) + + if use_user_provided_hint_override: + expr = sympy_subs(expr, self.var_to_hint_override) + + return sympy_subs(expr, self.var_to_val) + + def size_hint( + self, + expr: Union[Expr, int], + *, + fallback: Optional[int] = None, + hint_override: Optional[int] = None, + ) -> int: + out = self.symbolic_hint( + expr, + hint_override=hint_override, + use_user_provided_hint_override=fallback is not None, + ) + if not isinstance(out, (int, sympy.Integer)) and fallback is not None: + # Use the provided heuristic fallback hint + unbacked_sym_vrs = { + s: self.shape_env.var_to_range.get(s, None) for s in out.free_symbols + } + if all(vr is not None for vr in unbacked_sym_vrs.values()): + hint_vr = bound_sympy(out, unbacked_sym_vrs) # type: ignore[arg-type] + if isinstance(hint_vr.lower, (int, sympy.Integer)): + fallback = max(fallback, int(hint_vr.lower)) + if isinstance(hint_vr.upper, (int, sympy.Integer)): + fallback = min(fallback, int(hint_vr.upper)) + return fallback + + try: + return int(out) + except Exception: + log.debug("failed on: %s", out) + raise + + def size_hint_or_throw(self, expr: Union[Expr, int]) -> int: + # Like size_hint but there's no fallback for unbacked symints, so it throws. + out = self.symbolic_hint(expr) + try: + return int(out) + except Exception: + log.debug("failed on: %s", out, exc_info=True) + raise + + def size_hints( + self, + exprs: Iterable[Union[Expr, int]], + *, + fallback: Optional[int] = None, + hint_override: Optional[int] = None, + ) -> tuple[int, ...]: + return tuple( + self.size_hint( + x, + fallback=fallback, + hint_override=hint_override, + ) + for x in exprs + ) + + def size_hints_or_throw( + self, + exprs: Iterable[Union[Expr, int]], + ) -> tuple[int, ...]: + # Like size_hints but there's no fallback for unbacked symints, so it throws. + return tuple(self.size_hint_or_throw(x) for x in exprs) + + def _lru_cache(self, fn, maxsize=None): + """ + Wrapper around functools.lru_cache that clears when replacements + has been invalidated. + """ + fn_cache = functools.lru_cache(maxsize)(fn) + prior_len = len(self.replacements) + + @functools.wraps(fn) + def wrapper(*args, **kwargs): + nonlocal prior_len + if prior_len != len(self.replacements): + prior_len = len(self.replacements) + fn_cache.cache_clear() + return fn_cache(*args, **kwargs) + + return wrapper + + def make_stride_vars_cache(self): + cache = self._lru_cache(self._stride_vars) + + def stride_vars( + index: Expr, + vars: Sequence[sympy.Symbol], + support_vars: Optional[Sequence[sympy.Symbol]] = None, + ) -> list[Expr]: + if not support_vars: + support_vars = vars + return cache(index, tuple(vars), tuple(support_vars)) + + return stride_vars + + def _stride_vars( + self, + index: Expr, + vars: Sequence[sympy.Symbol], + support_vars: Sequence[sympy.Symbol], + ) -> list[Expr]: + """Convert an indexing expression back into strides + + NOTE: This is only valid if the index is a standard strided offset + calculation. e.g. 10 * ModularIndexing(i0 + 1, 1, 2) would give a + stride of -10 because the index wraps around after the first element + + """ + strides = [] + index = self.simplify(index) + # remove any offset + index = index - sympy_subs( + index, {v: sympy.S.Zero for v in support_vars if v != 0} + ) + for i in range(len(vars)): + # drop all the other dims + index_dim = sympy_subs( + index, + { + support_vars[j]: sympy.S.Zero + for j in range(len(support_vars)) + if vars[i] != support_vars[j] and support_vars[j] != 0 + }, + ) + v = vars[i] + if v == 0: + strides.append(sympy.S.Zero) + else: + # TODO(jansel): should we use sympy.diff here? + strides.append( + sympy_subs(index_dim, {v: sympy.S.One}) + - sympy_subs(index_dim, {v: sympy.S.Zero}) + ) + return strides + + def _get_unbacked_replacements(self) -> dict[Expr, Expr]: + if self.unbacked_replacements is not None: + return self.unbacked_replacements + + class CanonicalExprFinder: + """ + Purpose: + A disjoint-set/union-find data structure that can return the + "canonical" expression for a group of equivalent expressions. + - The canonical expression must come from the input eq_graph. + - The heuristics used to choose a leader determines which + expression becomes the canonical expression. + + Problem: + Given any unbacked expression, we should be able to find a size_hint + for the unbacked expression, that adheres to the ShapeEnv's deferred + runtime assertions. Otherwise, we may generate conflicting size hints. + In other words, even though we know u0 + s0 == u2, we may generate + size hints, such that, size_hint(u0 + s0) != size_hint(u2). + NOTE: At this time, only deferred runtime asserts that are equalities + (i.e. Eq(lhs, rhs)) are considered in this data structure. + + Examples: + - u0 + u1 == 9000, then find_expr(u0 + u1) == find_expr(9000) + - u0 + u1 == s9, then find_expr(u0 + u1) == find_expr(s9) + - u0 + s0 == u10, then find_expr(u0 + s0) == find_expr(u10) + + Inputs: + - equality_graph: An adjacency set of expressions where the edge + connects two expressions that are found equal to each other. The + edges are sourced from ShapeEnv's deferred_runtime_asserts. + + Usage: + - Call union_expr(a, b) to merge a & b into a single set which + shares the same canonical expression. + - Call find_expr(x) to find the canonical expression for x. + """ + + def __init__(self, eq_graph: dict[Expr, OrderedSet[Expr]]): + self.eq_graph = eq_graph + self.expressions = list(eq_graph.keys()) + self.reverse_expressions = { + expr: i for i, expr in enumerate(self.expressions) + } + # Each node is its own leader/parent initially + self.leader = list(range(len(self.expressions))) + # Track rank for union-by-rank + self.rank = [1] * len(self.expressions) + + # Takes each edge from the undirected graph and starts merging them. + self._build_canonical_expr_mapping() + + def _build_canonical_expr_mapping(self): + for expr, edges in self.eq_graph.items(): + for adj in edges: + self.union_expr(expr, adj) + + def union_expr(self, a: Expr, b: Expr): + return self.union( + self.reverse_expressions[a], self.reverse_expressions[b] + ) + + def union(self, a: int, b: int): + rootA = self.find(a) + rootB = self.find(b) + if rootA == rootB: + return False # already connected + leader, other = self.choose_leader(rootA, rootB) + self.leader[other] = leader + self.rank[leader] += self.rank[other] + return True + + def find_expr(self, expr: Expr): + parent = self.find(self.reverse_expressions[expr]) + return self.expressions[parent] + + def find(self, x: int): + # Path compression + if self.leader[x] != x: + self.leader[x] = self.find(self.leader[x]) + return self.leader[x] + + def choose_leader(self, a: int, b: int): + """ + The leader will become the canonical expression. + + Here are the heuristics used for choosing a leader: + 1. Backed expression or constants preferred over unbacked expr + 2. Simpler sub-expr when one contains the other + 3. Higher frequency across equalities from deferred runtime assertions + 4. Rank/size of the set + 5. Fallback to sympy.Basic.compare + """ + + def _choose(x: int, y: int) -> bool: + lhs, rhs = self.expressions[x], self.expressions[y] + + # Prefer replacing unbacked exprs with backed expressions/constants. + # Examples: + # u0 + s3 ==> s0 + s1, then leader is s0 + s1 + # u2 ==> 300, then leader is 300 + any_unbacked_lhs = has_free_unbacked_symbols(lhs) + any_unbacked_rhs = has_free_unbacked_symbols(rhs) + if any_unbacked_lhs != any_unbacked_rhs: + return bool(any_unbacked_rhs) + + # Handles cases where LHS contains the RHS. In other words, + # RHS is a sub-expression of LHS. For example: + # s1 * Max(2, u0) ==> Max(2, u0), then leader is Max(2, u0) + if lhs.has(rhs): + return False + elif rhs.has(lhs): + return True + + # Prefer expressions that come up more often. + degrees_lhs = len(self.eq_graph[lhs]) + degrees_rhs = len(self.eq_graph[rhs]) + if degrees_lhs != degrees_rhs: + return degrees_lhs > degrees_rhs + + # Try to apply union-by-rank optimization to flatten the + # leader trees. + if self.rank[x] != self.rank[y]: + return self.rank[x] > self.rank[y] + + # Fallback to sympy.Basic.compare for a deterministic ordering. + return lhs.compare(rhs) == -1 + + if _choose(a, b): + return a, b + return b, a + + # Build an undirected graph using ShapeEnv's deferred runtime assertions. + self.equality_graph: dict[Expr, OrderedSet[Expr]] = defaultdict(OrderedSet) + for assertions in self.shape_env.deferred_runtime_asserts.values(): + for assertion in assertions: + if not isinstance(assertion.expr, sympy.Equality): + # We're ignoring other relationals for now. If you need to + # account for relationals, then you may need a solver solution. + continue + lhs = sympy.sympify(assertion.expr.lhs) # sympify helps with ints + rhs = sympy.sympify(assertion.expr.rhs) + self.equality_graph[lhs].add(rhs) + self.equality_graph[rhs].add(lhs) + + # Use the undirected graph to create a DSU data structure, so we can + # query for a "canonical" expression. + uf = CanonicalExprFinder(self.equality_graph) + + # Start building the unbacked replacements mapping using CanonicalExprFinder + # The mapping is from Expr to its "canonical" Expr. + self.unbacked_replacements = {} + for expr in self.equality_graph: + canonical_expr = uf.find_expr(expr) + if expr != canonical_expr: + self.unbacked_replacements[expr] = canonical_expr + + return self.unbacked_replacements + + @functools.lru_cache # noqa: B019 + def _sub_unbacked_exprs(self, expr: Expr) -> Expr: + # it's fine to cache this fn since self is a singleton + replacements = self._get_unbacked_replacements() + + # consider making this threshold configurable + sub_cnt_limit = 30 + sub_cnt = 0 + while sub_cnt < sub_cnt_limit: + new_expr = expr.subs(replacements) + if new_expr == expr: + return new_expr + expr = sympy.factor(new_expr) + sub_cnt += 1 + + log.warning("Substitution limit (%d) reached w/ %s", sub_cnt_limit, expr) + return expr + + def atomically_apply_size_hint( + self, + expr: Union[Expr, int], + *, + fallback: Optional[int] = None, + hint_override: Optional[int] = None, + ) -> Union[Expr, int]: + if isinstance(expr, (int, sympy.Integer)): + return int(expr) + + if has_free_unbacked_symbols(expr): + # Make sure to substitute with the factored version + # e.g. 10*(s0 + u0) instead of 10*s0 + 10*u0 + expr = self._sub_unbacked_exprs(sympy.factor(expr)) + + # For multiple expressions that depend on an unbacked symint, + # we want to compute them consistently for a size hint we have chosen. + # So, recursively compute expressions via size hints of contained symbols. + # For example: u1 * u2 - 10 ==> fallback * fallback - 10 + assert isinstance(expr, Expr), type(expr) + free_symbols = expr.free_symbols + size_dict = { + symbol: V.graph.sizevars.size_hint( + symbol, fallback=fallback, hint_override=hint_override + ) + for symbol in free_symbols + } + return expr.subs(size_dict) + + def offset_var(self, index: Expr, vars: Sequence[sympy.Symbol]) -> Expr: + """Extract offset part of an indexing expression""" + index = self.simplify(index) + return sympy_subs(index, {v: sympy.S.Zero for v in vars if v != 0}) + + def stride_hints( + self, + index: Expr, + vars: Sequence[sympy.Symbol], + support_vars: Optional[Sequence[sympy.Symbol]] = None, + ) -> list[int]: + for v in index.free_symbols: + if symbol_is_type(v, SymT.INDIRECT): # type: ignore[attr-defined] + index = sympy_subs(index, {v: 0}) # type: ignore[dict-item] + result = [] + for s in self.stride_vars(index, vars, support_vars): + try: + result.append(self.size_hint_or_throw(s)) + except TypeError: + result.append(0) + return result + + def stride_order(self, index: Expr, vars: list[sympy.Symbol]) -> list[int]: + strides = tuple(map(abs, self.stride_hints(index, vars))) + order = list(range(len(strides))) + order.sort(key=lambda x: (strides[x] == 0, strides[x])) + return order + + def lookup_precomputed_size(self, expr: Expr) -> Expr: + if ( + isinstance(expr, (int, sympy.Symbol, sympy.Number)) + or expr.is_number + or expr.is_symbol + ): + return expr + expr = self.remove_precomputed_replacements(expr) + if expr not in self.precomputed_replacements: + sym = sympy_index_symbol_with_prefix( + SymT.PRECOMPUTED_SIZE, len(self.precomputed_replacements) + ) + self.precomputed_replacements[expr] = sym + self.inv_precomputed_replacements[sym] = expr + return self.precomputed_replacements[expr] + + def free_symbols(self) -> OrderedSet[sympy.Symbol]: + return OrderedSet(self.var_to_val.keys()) - OrderedSet(self.replacements.keys()) + + def combine_modular_indexing_pairs(self, index: sympy.Expr) -> sympy.Expr: + """ + A pair of special ModularIndexing can be combined. + + E.g. ModularIndexing(ModularIndexing(x, 1, a), 1, b) + We can simplify this to ModuleIndexing(x, 1, b), if + 1. x is non negative integer + 2. a and b are positive integers + 3. a is a multiple of b. + """ + + def _check_args(x, div, mod, is_first): + if not isinstance(div, sympy.Integer) or not isinstance(mod, sympy.Integer): + return False + if div != 1: + return False + if mod <= 0: + return False + + if is_first: + # first ModularIndexing should contains a nested ModularIndex + if not isinstance(x, ModularIndexing): + return False + else: + # second ModularIndexing should contains a non-negative + # symbol + if not isinstance(x, sympy.Symbol) or not self.statically_known_geq( + x, 0 + ): + return False + return True + + if isinstance(index, ModularIndexing): + x, div, mod = index.args + + if not _check_args(x, div, mod, True): + return index + + x2, div2, mod2 = x.args + + if not _check_args(x2, div2, mod2, False): + return index + + if mod2 % mod != 0: + return index + + return ModularIndexing(x2, 1, mod) + + return index + + def expand_floor_div( + self, index: sympy.Expr + ) -> Union[bool, tuple[sympy.Expr, sympy.Expr]]: + """ + Expand the FloorDiv to the entire expression so that the expression may + be simplified. + + E.g., for a 2D contiguous tensor with shape [a, 2 * b], and index variables + x1, x2, index expression 'x1 * 2b + x2' can be easily combined. + But index expression 'x1 * b + x2 // 2' can not. + By expanding the FloorDiv to the entire expression, we get + '(x1 * 2b + x2) // 2'. This transformation allows us to merge loops + for the numerator! + + Return false if this optimization can be applied; + Return the new expression and the denominator otherwise. + The original expression will be equivalent to 'new_expression // denominator' + """ + if not isinstance(index, sympy.Add): + return False + terms = index.args + + if len(terms) < 2: + return False + floor_div_index = -1 + varlist = [] + factorlist = [] + for idx, term in enumerate(terms): + if isinstance(term, sympy.Mul): + # For dynamic shape, term like '2*s1*x1' has 3 child nodes. + # - A integer for 2 + # - A symbol for s1 + # - A symbol for x1 + # Skip for now. + if len(term.args) != 2: + return False + factor, var = term.args + varlist.append(var) + factorlist.append(factor) + if not isinstance(factor, sympy.Integer) or not isinstance( + var, sympy.Symbol + ): + return False + # It's easier to reason about the correceness of the transformation + # for non-negative integers. + if not self.statically_known_geq(var, 0): + return False + elif isinstance(term, FloorDiv): + var, factor = term.args + if not isinstance(factor, sympy.Integer) or not isinstance( + var, sympy.Symbol + ): + return False + if not self.statically_known_geq(var, 0): + return False + if floor_div_index >= 0: + # can not handle multi FloorDiv yet + return False + + floor_div_index = idx + varlist.append(var) + # this factor is denominator + factorlist.append(factor) + else: + return False + + if floor_div_index < 0: + return False + + # Construct the new expression and remember the denominator + denominator = factorlist[floor_div_index] + new_index = sympy.S.Zero + + for var, factor, idx in zip(varlist, factorlist, itertools.count()): + if idx == floor_div_index: + new_index += var + else: + new_index += (factor * denominator) * var + + return new_index, denominator + + +def join_dimensions(expr: Expr) -> Expr: + if not isinstance(expr, sympy.Add) or not expr.has(ModularIndexing): + return expr # fast exit path + return _join_dimensions_cached(expr) + + +@functools.lru_cache(256) +def _join_dimensions_cached(expr: Expr) -> Expr: + """ + ModularIndexing(i0, 1, 32) + 32 * ModularIndexing(i0, 32, 4) + becomes + ModularIndexing(i0, 1, 128) + ModularIndexing(i0, 1, 32) + 32 * FloorDiv(i0, 32) + becomes i0 + + + This type of pattern can come from view operations + """ + assert isinstance(expr, sympy.Add) + + scale = sympy.Wild("scale", exclude=[0], integer=True) + base = sympy.Wild("base", integer=True) + divisor = sympy.Wild("divisor", integer=True) + mod1 = sympy.Wild("modulus", integer=True) + mod2 = sympy.Wild("modulus2", integer=True) + for term1 in expr.args: + m1 = term1.match(scale * ModularIndexing(base, divisor, mod1)) + if m1: + for term2 in expr.args: + m2 = term2.match( + m1[scale] + * m1[mod1] + * ModularIndexing(m1[base], m1[divisor] * m1[mod1], mod2) + ) + if m2 and term1 != term2: + expr = join_dimensions( + expr + - term1 + - term2 + + m1[scale] + * ModularIndexing(m1[base], m1[divisor], m1[mod1] * m2[mod2]) + ) + return expr + for term1 in expr.args: + m1 = term1.match(scale * ModularIndexing(base, divisor, mod1)) + if m1: + for term2 in expr.args: + m2 = term2.match( + m1[scale] * m1[mod1] * FloorDiv(m1[base], m1[divisor] * m1[mod1]) + ) + if m2 is not None: # in case of success we get an empty dict here + expr = join_dimensions( + expr + - term1 + - term2 + + m1[scale] * FloorDiv(m1[base], m1[divisor]) + ) + return expr + return expr + + +class SimplifyIndexing(V.WrapperHandler): # type: ignore[name-defined] + """ + A wrapper around .virtualize.ops that uses var range information to + simplify ModularIndexing/FloorDiv. + """ + + def __init__(self, inner, var_ranges: VarRanges) -> None: + super().__init__(inner) + self.name = "SimplifyIndexing" + self._simplify: Callable[[Expr], Expr] = ( + lambda index: V.graph.sizevars.simplify_with_ranges(index, var_ranges) + ) + + def load(self, name: str, index: sympy.Expr): + return self._inner.load(name, self._simplify(index)) + + def store(self, name, index, value, mode=None): + return self._inner.store(name, self._simplify(index), value, mode=mode) + + def store_reduction(self, name, index, value): + return self._inner.store_reduction(name, self._simplify(index), value) + + def index_expr(self, index, dtype): + return self._inner.index_expr(self._simplify(index), dtype) + + def check_bounds(self, index, size, lower, upper): + return self._inner.check_bounds(self._simplify(index), size, lower, upper) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/standalone_compile.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/standalone_compile.py new file mode 100644 index 0000000000000000000000000000000000000000..d07c5e704321355c7dd9bc5dec2d192b60dc96d9 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/standalone_compile.py @@ -0,0 +1,440 @@ +from __future__ import annotations + +import copy +import logging +import os +import pickle +import shutil +from abc import ABC, abstractmethod +from contextlib import AbstractContextManager, nullcontext +from typing import Any, Literal, Optional, TYPE_CHECKING + +import torch.fx +from torch._dynamo.aot_compile_types import BundledAOTAutogradSerializableCallable +from torch._dynamo.utils import dynamo_timed +from torch._inductor.cpp_builder import normalize_path_separator +from torch._inductor.cudagraph_utils import BoxedDeviceIndex +from torch._inductor.runtime.cache_dir_utils import temporary_cache_dir +from torch._inductor.utils import BoxedBool, InputType +from torch._subclasses import FakeTensorMode +from torch.fx.experimental.symbolic_shapes import ShapeEnv + +from . import config + + +if TYPE_CHECKING: + from collections.abc import Callable, Sequence + + from torch.compiler._cache import CacheInfo + from torch.fx import GraphModule + + +log = logging.getLogger(__name__) + + +class CompiledArtifact(ABC): + """ + CompiledArtifact class represents the inductor cache artifacts that + can be invoked in order to avoid repeated compilation. + + CompiledArtifact can be obtained by calling standalone_compile(gm, example_inputs) + to create a fresh CompiledArtifact from a GraphModule and example inputs. + + Later this CompiledArtifact can be saved to disk, either as a binary or unpacked + into the provided folder via the CompiledArtifact.save function. + + CompiledArtifact.load provides a way to create a CompiledArtifact from the + binary or unpacked data. + + Finally, the CompiledArtifact can be invoked via the __call__ method + to execute the cached artifact. + """ + + def __init__( + self, + compiled_fn: Callable[..., Any], + artifacts: Optional[tuple[bytes, CacheInfo]], + ): + self._compiled_fn = compiled_fn + self._artifacts = artifacts + + @abstractmethod + def __call__(self, *args: Any) -> Any: ... + + @abstractmethod + def save( + self, *, path: str, format: Literal["binary", "unpacked"] = "binary" + ) -> None: ... + + @staticmethod + def load( + *, path: str, format: Literal["binary", "unpacked"] = "binary" + ) -> CompiledArtifact: + if format == "unpacked": + # If format is unpacked, it must be a CacheCompiledArtifact + return CacheCompiledArtifact.load(path=path, format=format) + + assert format == "binary" + with open(path, "rb") as file: + from torch.utils._appending_byte_serializer import BytesReader + + from .codecache import torch_key + + result_bytes = file.read() + reader = BytesReader(result_bytes) + header = reader.read_bytes() + if header == AOTCompiledArtifact.AOT_HEADER: + assert reader.read_bytes() == torch_key() + artifact = reader.read_bytes() + assert reader.is_finished() + return AOTCompiledArtifact.deserialize(artifact) + # Otherwise, it's in the CacheCompiledArtifact format + elif header == CacheCompiledArtifact.CACHE_HEADER: + assert reader.read_bytes() == torch_key() + key = reader.read_str() + artifact_bytes = reader.read_bytes() + assert reader.is_finished() + torch.compiler.load_cache_artifacts(artifact_bytes) + return CacheCompiledArtifact._load_impl(nullcontext(), key) + else: + raise RuntimeError( + "Invalid header, expected CacheCompiledArtifact or AOTCompiledArtifact, got: " + + header.decode("utf-8") + ) + + +class CacheCompiledArtifact(CompiledArtifact): + """ + CompiledArtifact that depends on torch.compiler.save_cache_artifacts + """ + + CACHE_HEADER = bytes("CacheCompiledArtifact", "utf-8") + + def __init__( + self, + compiled_fn: Callable[..., Any], + artifacts: Optional[tuple[bytes, CacheInfo]], + ): + self._compiled_fn = compiled_fn + self._artifacts = artifacts + + def __call__(self, *args: Any) -> Any: + return self._compiled_fn(*args) + + def save( + self, *, path: str, format: Literal["binary", "unpacked"] = "binary" + ) -> None: + with dynamo_timed("CompiledArtifact.save"): + if self._artifacts is None: + raise RuntimeError( + "CompiledArtifact.save failed to save since there's no artifact to save" + ) + artifact_bytes, cache_info = self._artifacts + assert len(cache_info.aot_autograd_artifacts) == 1, cache_info + key = cache_info.aot_autograd_artifacts[0] + + if format == "binary": + # can't assert that it is a file since it might not exist yet + assert not os.path.isdir(path) + + from torch.utils._appending_byte_serializer import BytesWriter + + from .codecache import torch_key + + writer = BytesWriter() + writer.write_bytes(CacheCompiledArtifact.CACHE_HEADER) + writer.write_bytes(torch_key()) + writer.write_str(key) + writer.write_bytes(artifact_bytes) + + from torch._inductor.codecache import write_atomic + + write_atomic(path, writer.to_bytes()) + else: + assert format == "unpacked" + if os.path.exists(path): + assert os.path.isdir(path) + shutil.rmtree(path, ignore_errors=True) + + from .codecache import FxGraphCache + + with temporary_cache_dir(path): + # This function unpacks the cache artifacts to disk + loaded_cache_info = torch.compiler.load_cache_artifacts( + artifact_bytes + ) + assert loaded_cache_info is not None + # Now write all the output_code artifacts to disk so that + # they can be inspected and modified + for key in loaded_cache_info.inductor_artifacts: + subdir = FxGraphCache._get_tmp_dir_for_key(key) + assert os.path.exists(subdir) + for path in sorted(os.listdir(subdir)): + with open(os.path.join(subdir, path), "rb") as f: + graph = pickle.load(f) + output_file = graph.write_to_disk() + log.info("Output code written to: %s", output_file) + + @staticmethod + def _load_impl( + cache_dir_ctx: AbstractContextManager[Any], key: str + ) -> CompiledArtifact: + with ( + cache_dir_ctx, + config.patch(unsafe_skip_cache_dynamic_shape_guards=True), + ): + with torch._functorch.config.patch(strict_autograd_cache=True): + from torch._functorch._aot_autograd.autograd_cache import ( + AOTAutogradCache, + ) + + result = AOTAutogradCache._lookup( + key, + local=True, + remote=False, + args=[], + cache_info={}, + aot_config=None, + ) + + assert result is not None + (entry, _) = result + + from .compile_fx import _CompileFxKwargs + + fx_config = _CompileFxKwargs( + cudagraphs=BoxedBool(False), + boxed_forward_device_index=BoxedDeviceIndex(0), + ) + + context = torch._guards.TracingContext(FakeTensorMode(shape_env=ShapeEnv())) + with torch._guards.tracing(context): + compiled_fn = entry.wrap_post_compile( + [], entry.sanitized_aot_config, fx_config + ) + return CacheCompiledArtifact(lambda *args: compiled_fn(list(args)), None) + + @staticmethod + def _prepare_load( + *, path: str, format: Literal["binary", "unpacked"] = "binary" + ) -> tuple[str, AbstractContextManager[Any]]: + """ + Do format specific prep and loads, return a context manager and key + """ + path = normalize_path_separator(path) + with dynamo_timed("CompiledArtifact.load"): + if format == "binary": + # can't assert that it is a file since it might not exist yet + assert not os.path.isdir(path) + with open(path, "rb") as file: + artifacts = file.read() + from torch.utils._appending_byte_serializer import BytesReader + + from .codecache import torch_key + + reader = BytesReader(artifacts) + assert reader.read_bytes() == torch_key() + key = reader.read_str() + artifact_bytes = reader.read_bytes() + assert reader.is_finished() + + torch.compiler.load_cache_artifacts(artifact_bytes) + return key, nullcontext() + else: + assert format == "unpacked" + assert os.path.isdir(path) + autograd_cache_dir = os.path.join(path, "aotautograd") + assert os.path.isdir(autograd_cache_dir) + files = list(os.listdir(autograd_cache_dir)) + assert len(files) == 1 + key = files[0] + cache_dir_ctx = temporary_cache_dir(path) + return key, cache_dir_ctx + + @staticmethod + def load( + *, path: str, format: Literal["binary", "unpacked"] = "binary" + ) -> CompiledArtifact: + key, cache_dir_ctx = CacheCompiledArtifact._prepare_load( + path=path, format=format + ) + return CacheCompiledArtifact._load_impl(cache_dir_ctx, key) + + +class AOTCompiledArtifact(CompiledArtifact): + """ + Similar to CompiledArtifact, but the object is a single, bundled precompiled function. + This object is always a serializable callable function. + + This object is essentially a wrapper for BundledAOTAutogradSerializableCallable, which + is used by torch._dynamo.aot_compile for AOT Precompilation. + """ + + AOT_HEADER = bytes("AOTCompiledArtifact", "utf-8") + + def __init__( + self, + compiled_fn: Callable[..., Any], + ): + self.inner_fn = BundledAOTAutogradSerializableCallable(compiled_fn) + self._artifacts = ( + None # We don't need artifacts, the inner object handles everything + ) + + @staticmethod + def from_bundled_callable( + bundled_fn: BundledAOTAutogradSerializableCallable, + ) -> AOTCompiledArtifact: + return AOTCompiledArtifact(bundled_fn.compiled_fn) + + def __call__(self, *args: Any) -> Any: + return self.inner_fn(*args) + + def save( + self, *, path: str, format: Literal["binary", "unpacked"] = "binary" + ) -> None: + if format == "unpacked": + raise RuntimeError( + "AOTCompiledArtifact does not support unpacked format yet" + ) + result_bytes = self.serialize() + from torch.utils._appending_byte_serializer import BytesWriter + + from .codecache import torch_key + + writer = BytesWriter() + writer.write_bytes(AOTCompiledArtifact.AOT_HEADER) + writer.write_bytes(torch_key()) + writer.write_bytes(result_bytes) + + from torch._inductor.codecache import write_atomic + + # Save a sentinel file to indicate that this is AOT + write_atomic(path, writer.to_bytes()) + + def serialize(self) -> bytes: + return BundledAOTAutogradSerializableCallable.serialize_compile_artifacts( + self.inner_fn + ) + + @staticmethod + def deserialize(result_bytes: bytes) -> AOTCompiledArtifact: + deserialized = ( + BundledAOTAutogradSerializableCallable.deserialize_compile_artifacts( + result_bytes + ) + ) + assert isinstance(deserialized, BundledAOTAutogradSerializableCallable) + return AOTCompiledArtifact.from_bundled_callable(deserialized) + + @staticmethod + def load( + *, path: str, format: Literal["binary", "unpacked"] = "binary" + ) -> CompiledArtifact: + if format == "unpacked": + raise RuntimeError( + "AOTCompiledArtifact does not support unpacked format yet" + ) + with open(path, "rb") as file: + from torch.utils._appending_byte_serializer import BytesReader + + from .codecache import torch_key + + result_bytes = file.read() + reader = BytesReader(result_bytes) + header = reader.read_bytes() + assert header == AOTCompiledArtifact.AOT_HEADER + assert reader.read_bytes() == torch_key() + artifact = reader.read_bytes() + assert reader.is_finished() + return AOTCompiledArtifact.deserialize(artifact) + + +def standalone_compile( + gm: GraphModule, + example_inputs: Sequence[InputType], + *, + dynamic_shapes: Any, + options: Any, + aot: bool = False, # AOT mode, which uses BundledAOTAutogradCache +) -> CompiledArtifact: + """ + Implementation of torch.inductor.standalone_compile + """ + from torch.compiler._cache import CacheArtifactManager + + from .compile_fx import compile_fx + + ignore_shape_env = False + if dynamic_shapes == "from_example_inputs": + fake_mode = FakeTensorMode(shape_env=ShapeEnv()) + # tells compile_fx to ignore the shape_envs on the ambient context + # and the graph_module. + ignore_shape_env = True + elif dynamic_shapes == "from_tracing_context": + # Reuse fake_mode from the TracingContext. + # NB: The TracingContext only exists if we're currently in a torch.compile backend. + context = torch._guards.TracingContext.get() + assert context.fake_mode is not None + fake_mode = context.fake_mode + elif dynamic_shapes == "from_graph": + fake_mode = FakeTensorMode(shape_env=ShapeEnv()) + # Strategy: find a FakeTensor in the graph output, grab its FakeTensorMode. + # The graph passed to standalone_compile must be an Inductor-approved graph, + # which means that there is at least one Tensor output and the output node + # contains a flat list of Tensors. + last_node = next(iter(reversed(gm.graph.nodes))) + assert last_node.op == "output" + assert len(last_node.args) == 1 + + def handle_node(node: torch.fx.Node) -> None: + nonlocal fake_mode + if "example_value" in node.meta: + maybe_tensor = node.meta["example_value"] + if isinstance(maybe_tensor, torch._subclasses.fake_tensor.FakeTensor): + fake_mode = maybe_tensor.fake_mode + + # If gm came from Dynamo, then last_node.args[0] is always a list, + # even in single-Tensor returns. + # + # It's possible to get into a situation where last_node.args[0] + # is a Node (and not a list!). This happens if you call split_module + # on the graph. We allow for this case since it is common. + if isinstance(last_node.args[0], torch.fx.Node): + handle_node(last_node.args[0]) + else: + for node in last_node.args[0]: + handle_node(node) + + else: + raise ValueError( + f"standalone_compile got unsupported `dynamic_shapes` value: dynamic_shapes={dynamic_shapes}." + ) + + context = torch._guards.TracingContext(fake_mode) + with ( + torch._guards.tracing(context), + CacheArtifactManager.with_fresh_cache(), + config.patch("triton.autotune_at_compile_time", True), + torch._functorch.config.patch("bundled_autograd_cache", aot), + ): + # compile_fx can mutate gm + gm = copy.deepcopy(gm) + compiled_fn = compile_fx( + gm, example_inputs, ignore_shape_env=ignore_shape_env, **options + ) + assert callable(compiled_fn) + if aot: + if not hasattr(compiled_fn, "serialize"): + raise RuntimeError( + "Compiled function should have serialize method when aot=True" + ) + return AOTCompiledArtifact(compiled_fn) + artifacts = torch.compiler.save_cache_artifacts() + if artifacts is None: + log.warning( + "standalone_compile artifact generation failed, cannot save. " + "Run with TORCH_LOGS=+torch._inductor.codecache to identify the problem" + ) + + return CacheCompiledArtifact(compiled_fn, artifacts) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/subgraph_lowering.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/subgraph_lowering.py new file mode 100644 index 0000000000000000000000000000000000000000..aa1b4d2db025da0ea8344e3185d4c65d7fda2aab --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/subgraph_lowering.py @@ -0,0 +1,208 @@ +"""Utilities for lowering subgraphs used by higher order operators""" + +import functools +import operator +from collections.abc import Callable, Generator +from contextlib import contextmanager +from dataclasses import dataclass +from typing import Any, Optional, TypeVar, Union +from typing_extensions import ParamSpec + +import torch +from torch.utils._ordered_set import OrderedSet + +from . import ir +from .exc import SubgraphLoweringException +from .graph import GraphLowering +from .ops_handler import SimpleCSEHandler +from .virtualized import ops, V, WrapperHandler + + +T = TypeVar("T") +_P = ParamSpec("_P") + +OpOverload = torch._ops.OpOverload +LoweringDict = dict[Union[OpOverload, str], Callable[..., Any]] +TargetType = Union[Callable[..., Any], str] + + +class PointwiseSubgraphLowering(torch.fx.Interpreter): + """ + Lowers a pointwise subgraph to a single set of buffers with a separate + lowering object. Errors if buffers are created unexpectedly + """ + + graph_outputs: Optional[list[ir.IRNode]] + root_graph: GraphLowering + _current_op: Optional[TargetType] + # For backwards of buffer_grads with scatters we allow mutations + allowed_mutations: Optional[OrderedSet[OpOverload]] + additional_lowerings: Optional[LoweringDict] + buffers: list[ir.Buffer] + mutated_buffers: OrderedSet[str] + + def __init__( + self, + gm: torch.fx.GraphModule, + root_graph_lowering: GraphLowering, + allowed_mutations: Optional[OrderedSet[OpOverload]] = None, + additional_lowerings: Optional[LoweringDict] = None, + ) -> None: + super().__init__(gm) + self.graph_outputs = None + self.root_graph = root_graph_lowering + self.allowed_mutations = allowed_mutations + self.additional_lowerings = additional_lowerings + self._current_op = None + + # Used to track buffers created during lowering + self.mutated_buffers = OrderedSet() + self.buffers = [] + + @contextmanager + def _op_context(self, op: TargetType) -> Generator[None, None, None]: + """Set which op is being processed in call function to know if we can mutate buffers""" + previous = self._current_op + self._current_op = op + try: + yield + finally: + self._current_op = previous + + def _approved_mutator(self) -> bool: + return ( + self.allowed_mutations is not None + and self._current_op in self.allowed_mutations + ) + + def mark_buffer_mutated(self, name: str) -> None: + if self._approved_mutator(): + self.mutated_buffers.add(name) + else: + raise SubgraphLoweringException( + f"Buffer mutation detected during lowering of {self._current_op}. " + "Buffer mutations are only allowed in approved mutation ops. " + "This is an error in the lowering of the subgraph, please file a bug report." + ) + + def register_buffer(self, buffer: ir.Buffer, *, set_name: bool = False) -> str: + if self._approved_mutator(): + name = self.root_graph.register_buffer(buffer, set_name=set_name) + return name + else: + raise SubgraphLoweringException( + "Buffers cannot be created while lowering a pointwise subgraph. " + "This could be for a good reason (e.g. you're calling an op we can't codegen as a pointwise op), " + "but it could also be a bug. Please file a bug report if you think this should be supportable." + ) + + def __getattr__(self, name: str) -> Any: + return getattr(self.root_graph, name) + + def call_function( + self, + target: TargetType, + args: Any, + kwargs: dict[str, Any], + ) -> Any: + from .lowering import lowerings + + with self._op_context(target): + if target is operator.getitem and isinstance(args[0], (list, tuple, dict)): + return super().call_function(target, args, kwargs) + + # These takes precedence over the main lowerings + if self.additional_lowerings is not None: + if target in self.additional_lowerings: + assert isinstance(target, OpOverload) + return self.additional_lowerings[target](*args, **kwargs) + + if target not in lowerings: + raise SubgraphLoweringException( + f"{target} not supported in subgraph, (missing lowering)" + ) + return lowerings[target](*args, **kwargs) + + def output(self, target: str, args: tuple[Any], kwargs: dict[str, Any]) -> None: # type: ignore[override] + assert len(args) == 1 + self.graph_outputs = args[0] + + +@dataclass +class InputDescriptor: + dtype: torch.dtype + device: torch.device + + +class TracingOpsHandler(WrapperHandler): + def __init__(self, tracer: torch.fx.Tracer, num_inputs: int) -> None: + parent = tracer.create_proxy("placeholder", "ops", (), {}) + super().__init__(parent) + self.tracer = tracer + + self.placeholders = [ + self.tracer.create_proxy("placeholder", f"input{i}", (), {}) + for i in range(num_inputs) + ] + + def placeholder(self, idx: int) -> torch.fx.Proxy: + return self.placeholders[idx] + + def output(self, *args: tuple[object]) -> None: + self.tracer.create_node( + "output", "output", (tuple(self.tracer.create_arg(a) for a in args),), {} + ) + + +def lower_pointwise_subgraph( + subgraph: ir.Subgraph, inputs: list[InputDescriptor] +) -> Callable[_P, Any]: + # Lower subgraph to ir.Pointwise nodes + def fake_inner_fn( + loop_idx: int, input_idx: int + ) -> Union[ir.Expr, ir.TensorBox, None]: + return ops.placeholder(input_idx) + + graph_inputs = [ + ir.Pointwise.create( + device=desc.device, + dtype=desc.dtype, + inner_fn=functools.partial(fake_inner_fn, input_idx=i), + ranges=[], + ) + for i, desc in enumerate(inputs) + ] + gm = subgraph.graph_module + pw_subgraph = PointwiseSubgraphLowering(gm, root_graph_lowering=V.graph) + with V.set_graph_handler(pw_subgraph): # type: ignore[arg-type] + pw_subgraph.run(*graph_inputs) + + # Combine multiple pointwise computations into a single graph module + # Do this by tracing through each individually and doing CSE + tracer = torch.fx.Tracer() + tracer.graph = torch.fx.Graph(tracer_cls=tracer.__class__) + trace_ops = SimpleCSEHandler(TracingOpsHandler(tracer, len(inputs))) + assert pw_subgraph.graph_outputs is not None + + with V.set_ops_handler(trace_ops): + output_irs = [] + + for out_var in pw_subgraph.graph_outputs: + assert isinstance(out_var, ir.TensorBox), type(out_var) + assert out_var.get_size() == [] + assert isinstance(out_var.data, ir.StorageBox) + assert isinstance(out_var.data.data, ir.Pointwise) + + idx = () + ir_out = out_var.data.data.inner_fn(idx) + + output_irs.append(ir_out) + + ops.output(*output_irs) + + lowered_gm = torch.fx.GraphModule({}, tracer.graph) + + def inner_fn(*args: _P.args, **kwargs: _P.kwargs) -> Any: + return lowered_gm(V.get_ops_handler(), *args, **kwargs) + + return inner_fn diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/test_case.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/test_case.py new file mode 100644 index 0000000000000000000000000000000000000000..efdef48884cefebdad8c3a5dda07848fff1b9675 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/test_case.py @@ -0,0 +1,51 @@ +import contextlib +import os +from typing import Union + +from torch._dynamo.test_case import ( + run_tests as dynamo_run_tests, + TestCase as DynamoTestCase, +) +from torch._functorch import config as functorch_config +from torch._inductor import config +from torch._inductor.utils import fresh_cache + + +def run_tests(needs: Union[str, tuple[str, ...]] = ()) -> None: + dynamo_run_tests(needs) + + +class TestCase(DynamoTestCase): + """ + A base TestCase for inductor tests. Enables FX graph caching and isolates + the cache directory for each test. + """ + + def setUp(self) -> None: + super().setUp() + self._inductor_test_stack = contextlib.ExitStack() + self._inductor_test_stack.enter_context( + functorch_config.patch( + { + "enable_autograd_cache": True, + } + ) + ) + + if ( + "TORCHINDUCTOR_FX_GRAPH_CACHE" not in os.environ + and "TORCHINDUCTOR_FX_GRAPH_CACHE_DEFAULT" not in os.environ + ): + self._inductor_test_stack.enter_context( + config.patch({"fx_graph_cache": True}) + ) + + if ( + os.environ.get("INDUCTOR_TEST_DISABLE_FRESH_CACHE") != "1" + and os.environ.get("TORCH_COMPILE_DEBUG") != "1" + ): + self._inductor_test_stack.enter_context(fresh_cache()) + + def tearDown(self) -> None: + super().tearDown() + self._inductor_test_stack.close() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/test_operators.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/test_operators.py new file mode 100644 index 0000000000000000000000000000000000000000..bbdcf89d0ef866bec01114953bce4dfb379628e9 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/test_operators.py @@ -0,0 +1,29 @@ +from typing import Any + +import torch.library +from torch import Tensor +from torch.autograd import Function + + +_test_lib_def = torch.library.Library("_inductor_test", "DEF") +_test_lib_def.define("realize(Tensor self) -> Tensor", tags=torch.Tag.pt2_compliant_tag) + +_test_lib_impl = torch.library.Library("_inductor_test", "IMPL") +for dispatch_key in ("CPU", "CUDA", "MPS", "Meta"): + _test_lib_impl.impl("realize", lambda x: x.clone(), dispatch_key) + + +class Realize(Function): + @staticmethod + # pyrefly: ignore [bad-override] + def forward(ctx: object, x: Tensor) -> Tensor: + return torch.ops._inductor_test.realize(x) + + @staticmethod + # types need to stay consistent with _SingleLevelFunction + def backward(ctx: Any, *grad_output: Any) -> Any: + return grad_output[0] + + +def realize(x: Tensor) -> Tensor: + return Realize.apply(x) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/tiling_utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/tiling_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..89ad329abd70b0dae8b3e13f21bf8869e1580482 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/tiling_utils.py @@ -0,0 +1,814 @@ +import dataclasses +import itertools +from collections import Counter, defaultdict +from collections.abc import Callable +from typing import Literal, Optional, overload, TYPE_CHECKING, TypeVar, Union + +import sympy + +import torch +from torch._inductor import config +from torch._inductor.dependencies import index_vars_no_squeeze +from torch._inductor.utils import sympy_product, sympy_subs +from torch.utils._ordered_set import OrderedSet +from torch.utils._sympy.functions import Identity +from torch.utils._sympy.solve import try_solve +from torch.utils._sympy.symbol import symbol_is_type, SymT + +from .virtualized import V + + +T = TypeVar("T") +U = TypeVar("U") + + +Split = tuple[sympy.Expr, ...] +VarsAndRanges = tuple[list[sympy.Symbol], list[sympy.Expr]] + + +loop_tiling_log = torch._logging.getArtifactLogger(__name__, "loop_tiling") +from torch.utils._sympy.functions import FloorDiv, ModularIndexing + + +if TYPE_CHECKING: + from torch._inductor.scheduler import FusedSchedulerNode, SchedulerNode + + +def solve_for_zero(expr: sympy.Expr) -> Optional[sympy.Expr]: + """ + Given an expr with a single free symbol, solve for a constant relation that would make + this expression 0. + """ + if expr.is_constant(): + return None + elif isinstance(expr, FloorDiv): + return None + + assert len(expr.free_symbols) == 1 + free_symbol = next(iter(expr.free_symbols)) + if isinstance(expr, ModularIndexing): + out = try_solve(sympy.Eq(expr.args[0], expr.args[2]), free_symbol) + else: + out = try_solve(sympy.Eq(expr, 0), free_symbol) + if not out or not out[1].is_constant(): + return None + return out[1] + + +def solve_for_tiling(expr: sympy.Expr) -> Optional[sympy.Expr]: + """ + Giving an expr with a single free symbol, try to find a tiling that would + make the expression coalesced with respect to that symbol. + + Tiling an expression `x` by `y` means that the expression will now be indexed + by both the original (x) and by (x * y). So we are looking for a + multiplicative factor that will make ((x + 1) * y) - (x * y) == 1. + + To simplify things for sympy, we'll try just x * y == 1, check x(1) and x(0). + """ + + if len(expr.free_symbols) == 0: + return None + + free_symbol = next(iter(expr.free_symbols)) + + def _solve_simple_expr(expr: sympy.Expr) -> Optional[sympy.Expr]: + assert not expr.has(ModularIndexing) and not expr.has(FloorDiv) + if len(expr.free_symbols) != 1: + return None + + out = try_solve(sympy.Eq(expr, 1), free_symbol) + if not out or not out[1].is_constant(): + return None + return out[1] + + # Sympy solving is very limited with ModularIndexing and FloorDiv, + # but good otherwise. + if not expr.has(ModularIndexing) and not expr.has(FloorDiv): + return _solve_simple_expr(expr) + + required_values = [] + eq_1_expressions = [] + + # very piecemeal solution if ModularIndexing or FloorDiv involved. + # Look for terms we'll try to make 0, and then other terms we'll try to make 1. + # Expand as needed. + for arg in sympy.Add.make_args(expr): + # Try to make mul terms 0 + if isinstance(arg, sympy.Mul): + seen = False + # TODO - only need one of these to be solvable to zero + # + for mul_arg in arg.args: + out = solve_for_zero(mul_arg) + if out is None: + continue + + assert out.is_constant() + seen = True + required_values.append(out) + + if not seen: + return None + else: + eq_1_expressions.append(arg) + + if not eq_1_expressions: + return None + + eq_1_expr = sum(eq_1_expressions) + + def indexing_div_rep( + x: sympy.Expr, + y: sympy.Expr, + z: Optional[sympy.Expr] = None, + ) -> sympy.Expr: + return x / y + + # For the purposes of tiling/coalesced access, approximate ModularIndexing and FloorDiv + # then check later + # pyrefly: ignore [missing-attribute] + eq_1_expr_simplified = eq_1_expr.replace(ModularIndexing, indexing_div_rep).replace( + FloorDiv, indexing_div_rep + ) + + out = _solve_simple_expr(eq_1_expr_simplified) + # since we approximated FloorDiv/ModularIndexing, double check here + if not out or sympy_subs(eq_1_expr, {free_symbol: out}) != 1: + return None + + required_values.append(out) + + if len(OrderedSet(required_values)) == 1: + return required_values[0] + + return None + + +def find_broadcast_var( + index: sympy.Expr, var_ranges: dict[sympy.Expr, int] +) -> Optional[sympy.Expr]: + """ + Try to find the variable that this index is broadcast over. + A broadcast pattern is one where consecutive values of a variable + access the same memory location (e.g., x // 10). + """ + # Approximate analysis by evaluating at 1 and 0 + variables: dict[sympy.Symbol, int] = {} + for v in index.free_symbols: + if v in var_ranges: + variables[v] = 0 + else: + variables[v] = get_hint(v) + + zero_index = sympy_subs(index, variables) + for v in var_ranges: + if v not in index.free_symbols: + continue + + variables[v] = 1 + try: + new_val = sympy_subs(index, variables) + except ZeroDivisionError: + loop_tiling_log.info("zero division error %s %s", index, variables) + continue + # Broadcast means the value doesn't change when the variable increments + if new_val == zero_index: + return v + variables[v] = 0 + + return None + + +def find_coalesced_var( + index: sympy.Expr, var_ranges: dict[sympy.Expr, int] +) -> Optional[sympy.Expr]: + """ + Try to find the symbol which coalesces this index + """ + top_level_terms = sympy.Add.make_args(index) + for v in var_ranges: + if v in top_level_terms: + return v + + # Approximate analysis by evaluating at 1 and 0 + variables: dict[sympy.Symbol, int] = {} + for v in index.free_symbols: + if v in var_ranges: + variables[v] = 0 + else: + variables[v] = get_hint(v) + + zero_index = sympy_subs(index, variables) + for v in var_ranges: + variables[v] = 1 + try: + new_val = sympy_subs(index, variables) + except ZeroDivisionError: + loop_tiling_log.info("zero division error %s %s", index, variables) + continue + if new_val - zero_index == 1: + variables[v] = 2 + # in some more complex expressions, 0->1 will be coalesced, + # but not 1->2 + if (sympy_subs(index, variables) - new_val) == 1: + return v + variables[v] = 0 + + return None + + +@dataclasses.dataclass(frozen=True) +class FusedNormalizedReadsWrites: + """ + Normalized reads and writes for nodes in the same FusedSchedulerNode. + """ + + index_vars: OrderedSet[sympy.Symbol] + reduce_vars: OrderedSet[sympy.Symbol] + reads: dict[sympy.Expr, OrderedSet[str]] + writes: dict[sympy.Expr, OrderedSet[str]] + var_ranges: dict[sympy.Symbol, int] + + +@overload +def get_pw_red_splits( + n: "SchedulerNode", + pointwise_numel: sympy.Expr, + red_numel: sympy.Expr, + none_if_not_divisible: Literal[True], +) -> Optional[tuple[VarsAndRanges, VarsAndRanges]]: ... + + +@overload +def get_pw_red_splits( + n: "SchedulerNode", + pointwise_numel: sympy.Expr, + red_numel: sympy.Expr, + none_if_not_divisible: Literal[False] = False, +) -> tuple[VarsAndRanges, VarsAndRanges]: ... + + +def get_pw_red_splits( + n: "SchedulerNode", + pointwise_numel: sympy.Expr, + red_numel: sympy.Expr, + none_if_not_divisible: bool = False, +) -> Optional[tuple[VarsAndRanges, VarsAndRanges]]: + if n.is_reduction() or sympy_product(n._body.sizes[0]) == pointwise_numel: + return ( + (n._body.iter_vars, n._body.sizes[0]), + (n._body.reduce_vars, n._body.sizes[1]), + ) # type: ignore[return-value] + + assert sympy_product(n._body.sizes[0]) == pointwise_numel * red_numel # type: ignore[operator] + i = len(n._body.sizes[0]) - 1 + prod = 1 + while i >= 0: + prod *= n._body.sizes[0][i] + if prod == red_numel: + break + i -= 1 + + if i >= 0: + pw_splits = n._body.sizes[0][0:i] + iter_vars = n._body.iter_vars[0:i] + + red_splits = n._body.sizes[0][i:] + red_vars = n._body.iter_vars[i:] + return (iter_vars, pw_splits), (red_vars, red_splits) # type: ignore[return-value] + + if none_if_not_divisible: + return None + else: + return ( + (n._body.iter_vars, n._body.sizes[0]), + (n._body.reduce_vars, n._body.sizes[1]), + ) # type: ignore[return-value] + + +class NodeSplitGetter: + """ + Finds a Pointwise, Reduction Split that compatible with all nodes in a SchedulerNode. + """ + + def __init__( + self, + node: Union["FusedSchedulerNode", "SchedulerNode"], + ): + self.node = node + self.pointwise_numel: sympy.Expr = node.group[1][0] + self.red_numel: sympy.Expr = node.group[1][1] + + self.pw_split_options: dict[int, OrderedSet[Split]] = defaultdict(OrderedSet) + + self.reduction_split: Split = () + self.all_node_sizes: OrderedSet[tuple[Split, Split]] = OrderedSet() + + fused_group = node.group[1] + for n in reversed(node.get_nodes()): + if not isinstance(n, torch._inductor.scheduler.SchedulerNode): + continue + + # if we can't split the pw ranges into a (pw, red) split, + # dont add as a split option, but do make sure we check that this size + # is splittable + maybe_splits = get_pw_red_splits( + n, self.pointwise_numel, self.red_numel, none_if_not_divisible=True + ) + if maybe_splits is None: + self.all_node_sizes.add(n._body.sizes) + continue + + (_, n_pw_splits), (_, n_red_splits) = maybe_splits + + # fill in reduction size + n_pw_splits, n_red_splits = ( + torch._inductor.codegen.simd.SIMDKernel.prepare_split_iteration_lengths( + fused_group, (n_pw_splits, n_red_splits), self.red_numel + ) + ) + + self.pw_split_options[len(n_pw_splits)].add(tuple(n_pw_splits)) + + # initially, we are just going to do a single reduction split since + # reduction tiling is off by default. even if we miss a reduction split, + # we can recover it in the split var analysis. + # TODO: an earlier version for this code tried to iteratively try the maximum number + # of split vars, by iterating over both pointwise and reduction. but not worth + # the complexity yet. + + if n_red_splits != (): + self.reduction_split = (sympy_product(n_red_splits),) + + n_size = (tuple(n_pw_splits), tuple(n_red_splits)) + self.all_node_sizes.add(n_size) + + self.seen_pw_splits: OrderedSet[Split] = OrderedSet() + + def get_node_splits(self) -> tuple[Split, Split]: + """ + Get a compatible pointwise, reduction split of the node + """ + + if len(self.all_node_sizes) == 1: + return next(iter(self.all_node_sizes)) + + max_pw_split = max(self.pw_split_options.keys()) + for pw_split_len in range(max_pw_split, 0, -1): + for pw_split in self.pw_split_options[pw_split_len]: + if out := self.try_split(pw_split, self.reduction_split): + return out + + # combine dims for next round + for pw_split in self.pw_split_options[pw_split_len]: + for i in range(len(pw_split) - 1): + new_split = tuple( + pw_split[0:i] + + (sympy_product(pw_split[i : i + 2]),) + + pw_split[i + 2 :] + ) + self.pw_split_options[len(new_split)].add(new_split) + + # if for whatever reason we couldn't split above, return default split + return ((self.pointwise_numel,), (self.red_numel,)) + + def try_split(self, pw: Split, red: Split) -> Optional[tuple[Split, Split]]: + """ + See if this split is compatible, and potentially returning a longer split + than the input. + """ + + from torch._inductor.codegen.simd import CantSplit, SIMDKernel + + if pw in self.seen_pw_splits: + return None + self.seen_pw_splits.add(pw) + + for n_pw, n_red in self.all_node_sizes: + try: + groups = pw + red + lengths = (n_pw, n_red) + splits, getters = SIMDKernel._split_iteration_ranges(groups, lengths) + except CantSplit: + return None + + assert len(getters) == 2 + pw_group_splits = splits[: len(pw)] + # if we had to divide a variable into two to do this split, + # then lets try the larger, induced split. + # e.g. splitting (12, 2) into (2, 12) will split the first var into: + # (2, 6) and produce an overall split of (2, 6, 2) + flattened_pw_splits = tuple(itertools.chain.from_iterable(pw_group_splits)) + if flattened_pw_splits != pw: + if out := self.try_split(flattened_pw_splits, red): + return out + + return pw, red + + +def apply_var_mapping( + iter_vars: list[sympy.Symbol], + red_vars: list[sympy.Symbol], + norm_pw_vars: list[sympy.Symbol], + norm_red_vars: list[sympy.Symbol], + new_ranges: list[list[sympy.Expr]], + return_getters_groups: list[list[Callable[[list[sympy.Expr]], sympy.Expr]]], +) -> dict[sympy.Symbol, sympy.Expr]: + """Maps original variables to expressions using normalized variables.""" + + # the output of split_iteration_range is a new_ranges, return_getters_groups + # new_ranges is a flattened list of ranges corresponding to the new pw and red vars + # for example, taking in pw vars of range (6, 6) to normalized range [36], + # new_ranges would be [[6, 6]] + # There is a return_getter callable for each input iter_var and red_vars. + # if you flatten out all of the ranges, and create a variable for each index, + # then applying the flattening vars to the callables in return_getters_groups + # gives you the mapping from input vars -> flattened vars. + # From there, we can compute the output, normalized variables. + # For instance [6, 6] corresponding to flat vars v0, v1 will be + # v0 + 6 * v1 + + # Create flattened iteration variables + num_vars = sum(len(s) for s in new_ranges) + flat_vars = sympy.symbols(f"v_0:{num_vars}") + count = 0 + + if len(iter_vars) == 0 and len(red_vars) == 0: + return {} + + assert len(new_ranges) == len(norm_pw_vars + norm_red_vars) + apply_groups = [] + for group in return_getters_groups: + apply_groups.append([g(flat_vars) for g in group]) + + iter_vars_to_flat_vars = {} + for i, (group, var_group) in enumerate( + zip(apply_groups, (iter_vars, red_vars), strict=True) + ): + # if the node has sizes (p0, 1) and the fused node is (p0, r0) + # the reduction var gets filled in for split_iteration_range + if len(group) != len(var_group): + assert i == 1 + assert len(var_group) == 0 + continue + + iter_vars_to_flat_vars.update({v: g for g, v in zip(group, var_group)}) + + count = 0 + flat_vars_to_new_vars = {} + for new_range, new_var in zip( + new_ranges, norm_pw_vars + norm_red_vars, strict=True + ): + range_vars = [] + for _ in range(len(new_range)): + range_vars.append(flat_vars[count]) + count += 1 + + prod = 1 + for i in range(len(new_range) - 1, -1, -1): + flat_vars_to_new_vars[range_vars[i]] = new_var * prod + prod = new_range[i] * prod + + return { + k: sympy_subs(v, flat_vars_to_new_vars) + for k, v in iter_vars_to_flat_vars.items() + } + + +def extract_normalized_read_writes( + node: Union["FusedSchedulerNode", "SchedulerNode"], +) -> Optional[FusedNormalizedReadsWrites]: + """Extracts index variables, reduce variables, read/write expressions, and variable ranges from a fused node.""" + reads: dict[sympy.Expr, OrderedSet[str]] = defaultdict(OrderedSet) + writes: dict[sympy.Expr, OrderedSet[str]] = defaultdict(OrderedSet) + + all_output_names = node.get_buffer_names() + op_names = node.get_operation_names() + outputs: OrderedSet[str] = OrderedSet() + removed_buffers: OrderedSet[str] = OrderedSet() + for buf_name in all_output_names: + if V.graph.scheduler.can_buffer_be_removed_through_fusion(buf_name, op_names): + removed_buffers.add(buf_name) + else: + outputs.add(buf_name) + + inputs = OrderedSet( + dep.name for dep in node.read_writes.reads if dep.name not in removed_buffers + ) + + pointwise_numel: sympy.Expr = node.group[1][0] + red_numel: sympy.Expr = node.group[1][1] + + # TODO - a few dynamic shapes issues to resolve + if any( + (isinstance(var, sympy.Expr) and not var.is_constant()) + for var in (pointwise_numel, red_numel) + ): + return None + + pw_splits, red_splits = NodeSplitGetter(node).get_node_splits() + + # lets use different prefix (`n`) to distinguish + (norm_pw_vars, norm_red_vars), ranges = index_vars_no_squeeze( + pw_splits, red_splits, prefix="n" + ) + + for n in list(node.get_nodes()): + if not isinstance(n, torch._inductor.scheduler.SchedulerNode): + continue + + body = n._body + + # TODO - not handled well. indirect loads will not be coalesced, + # need to account for that in analysis. + if body.indirect_vars: + return None + + n_reads: dict[sympy.Expr, OrderedSet[str]] = defaultdict(OrderedSet) + n_writes: dict[sympy.Expr, OrderedSet[str]] = defaultdict(OrderedSet) + + # TODO - will the names for all the inputs/outputs accurately + # reflect mutation, or do I need to remap with mutation_real_name + for inp in inputs: + for expr in body.get_all_read_expr(inp): + n_reads[expr].add(inp) + + for out in outputs: + for expr in body.get_all_write_expr(out): + n_writes[expr].add(out) + + if not n_reads and not n_writes: + continue + + (iter_vars, n_pw_splits), (red_vars, n_red_splits) = get_pw_red_splits( + n, pointwise_numel, red_numel + ) + + groups = pw_splits + red_splits + lengths = (n_pw_splits, (n_red_splits)) + lengths = ( + torch._inductor.codegen.simd.SIMDKernel.prepare_split_iteration_lengths( + groups, lengths, red_numel + ) + ) + new_ranges, return_getters_groups = ( + torch._inductor.codegen.simd.SIMDKernel._split_iteration_ranges( + groups, lengths + ) + ) + var_map = apply_var_mapping( + iter_vars, + red_vars, + norm_pw_vars, + norm_red_vars, + new_ranges, + return_getters_groups, + ) + + # We create Identity sympy.Functions to prevent expansion to int64, + # unwrap for tiling analysis. + def remove_identity(expr: sympy.Expr) -> sympy.Expr: + return expr.replace(Identity, lambda x: x) + + n_reads_new = { + sympy_subs(remove_identity(read), var_map): v for read, v in n_reads.items() + } + n_writes_new = { + sympy_subs(remove_identity(write), var_map): v + for write, v in n_writes.items() + } + + for expr, buf_names in n_reads_new.items(): + reads[expr] |= buf_names + + for expr, buf_names in n_writes_new.items(): + writes[expr] |= buf_names + + reads = { + V.graph.sizevars.simplify_with_ranges(r, ranges): v for r, v in reads.items() + } + writes = { + V.graph.sizevars.simplify_with_ranges(w, ranges): v for w, v in writes.items() + } + + fused_out = FusedNormalizedReadsWrites( + norm_pw_vars, # type: ignore[arg-type] + norm_red_vars, # type: ignore[arg-type] + reads, + writes, + ranges, + ) + loop_tiling_log.info("Normalized Fused reads: %s", fused_out) + return fused_out + + +def get_score( + addr: sympy.Expr, var_ranges: dict[sympy.Symbol, int], buf_names: OrderedSet[str] +) -> int: + """ + Score addr according to its approximate size. + """ + # TODO - deduplicate with candidate_tilings + var_sizes = [] + for v in addr.free_symbols: + v_size = var_ranges.get(v) + # TODO - reason about indirect vars + if not symbol_is_type(v, SymT.INDIRECT) and v_size is not None: + var_sizes.append(v_size) + from .virtualized import V + + return V.graph.sizevars.atomically_apply_size_hint( + sympy_product(var_sizes), fallback=config.unbacked_symint_fallback + ) + + +def try_get_buf_size(buf_name: str) -> Optional[int]: + buf = V.graph.try_get_buffer(buf_name) + if not buf: + return None + return V.graph.sizevars.atomically_apply_size_hint( + sympy_product(buf.get_size()), fallback=config.unbacked_symint_fallback + ) + + +def get_hint(v: Union[sympy.Expr, int]) -> int: + if isinstance(v, int): + return v + else: + return V.graph.sizevars.size_hint(v, fallback=config.unbacked_symint_fallback) + + +@dataclasses.dataclass(frozen=True) +class VarTiling: + """ + Tiling of a var by `tiling_factor` that yields additional coalesced mem accesses by `benefit_score` + """ + + var: sympy.Symbol + tiling_factor: int + score: int + + +@dataclasses.dataclass(frozen=True) +class CoalesceVarAnalysis: + # Var -> Memory Score - not strictly the amount of memory + # because we multiply writes x2 + # TODO: separate into dataclass that olds mem, dtype, is_write + coalesced_by_var: dict[sympy.Expr, int] + + uncoalesced_addrs: dict[sympy.Expr, int] + + norm_read_writes: FusedNormalizedReadsWrites + + suggested_split: Optional[VarTiling] = None + + +def analyze_memory_coalescing( + fused_node: Union["FusedSchedulerNode", "SchedulerNode"], +) -> Optional[CoalesceVarAnalysis]: + """ + Find variables that coalesce the reads and writes and score the total size. + + If uncoalesced memory expressions are found, look for additionally tiling of variables + which will coalesce memory accesses. + + For instance - for the following expression: + + (32*p0) // 2048 + + Tiling p0 by 64 will make this expression coalesced. + """ + + norm_read_writes = extract_normalized_read_writes(fused_node) + + if norm_read_writes is None: + return None + + reads = norm_read_writes.reads + writes = norm_read_writes.writes + var_ranges = norm_read_writes.var_ranges + + coalesced_by_var: dict[sympy.Symbol, int] = Counter() + uncoalesced_addrs: dict[sympy.Expr, int] = Counter() + + for is_read, (memory_expr, buf_names) in itertools.chain( + ((True, item) for item in reads.items()), + ((False, item) for item in writes.items()), + ): + # skip memory deps with indirect vars - todo: better handling + indirect_expr = bool( + memory_expr.free_symbols - norm_read_writes.var_ranges.keys() + ) + + if indirect_expr: + continue + + size = get_score(memory_expr, var_ranges, buf_names) + + if size == 0: + continue + + maybe_coalesced_var = find_coalesced_var(memory_expr, var_ranges) + # while broadcasting vars are not technically coalesced, + # accesses at least stay in cache, so they provide most of the benefit. + # treat the same for now. + if maybe_coalesced_var is None: + maybe_coalesced_var = find_broadcast_var(memory_expr, var_ranges) + + total_score = 0 + for buf_name in buf_names: + if (buf := V.graph.try_get_buffer(buf_name)) and ( + buf_size := try_get_buf_size(buf_name) + ): + # constrain by buf size since we'll read at most that many elements + # score could be more through either masking or by broadcasting (e.g. x // 16) + total_score += min(buf_size, size) * buf.dtype.itemsize + + # coalesced writes more important + total_score *= 1 if is_read else 2 + + if maybe_coalesced_var: + coalesced_by_var[maybe_coalesced_var] += total_score + else: + uncoalesced_addrs[memory_expr] += total_score + + if not uncoalesced_addrs: + return CoalesceVarAnalysis( + coalesced_by_var=coalesced_by_var, + uncoalesced_addrs=uncoalesced_addrs, + norm_read_writes=norm_read_writes, + ) + + # map from var -> tiling -> total_score + tiling_scores: dict[sympy.Expr, dict[int, int]] = defaultdict(Counter) + + for uncoalesced_expr, addr_score in uncoalesced_addrs.items(): + expr_subs = dict.fromkeys(uncoalesced_expr.free_symbols, 0) + for v in uncoalesced_expr.free_symbols: + # skip non iter/reduce var variables + if v not in var_ranges: + continue + # skip small addrs + if addr_score == 0: + continue + del expr_subs[v] + single_var_expr = sympy_subs(uncoalesced_expr, expr_subs) + expr_subs[v] = 0 + tiling_factor = solve_for_tiling(single_var_expr) + if ( + tiling_factor is None + or not tiling_factor.is_constant() + or not tiling_factor.is_integer + ): + continue + + tiling_factor = int(tiling_factor) + if not V.graph.sizevars.statically_known_lt(tiling_factor, var_ranges[v]): + continue + + # TODO - if a var is in the middle, such as [n0, n1, n2] + # n1 can can be split beyond range + + MIN_TILING_BLOCK = 8 + if not all( + V.graph.sizevars.statically_known_lt(MIN_TILING_BLOCK, block) + for block in (tiling_factor, var_ranges[v] // tiling_factor) + ): + continue + + tiling_scores[v][tiling_factor] += addr_score + + if len(tiling_scores) == 0: + return CoalesceVarAnalysis( + coalesced_by_var=coalesced_by_var, + uncoalesced_addrs=uncoalesced_addrs, + norm_read_writes=norm_read_writes, + ) + + best_tiling: Optional[tuple[sympy.Expr, int]] = None + best_tiling_score = 0 + + for var, tiling_counter in tiling_scores.items(): + for tile, tile_score in tiling_counter.items(): + if tile_score > best_tiling_score: + best_tiling = (var, tile) + best_tiling_score = tile_score + + if best_tiling is None: + return CoalesceVarAnalysis( + coalesced_by_var=coalesced_by_var, + uncoalesced_addrs=uncoalesced_addrs, + norm_read_writes=norm_read_writes, + ) + + # TODO - for strictly pointwise fusions, + # we can consider just swizzling the var if the var we are going to tile + # does not coalesce a significant portion of global reads + # TODO - could also prefer index var splits to reduction, better tested + return CoalesceVarAnalysis( + coalesced_by_var=coalesced_by_var, + uncoalesced_addrs=uncoalesced_addrs, + norm_read_writes=norm_read_writes, + suggested_split=VarTiling(best_tiling[0], best_tiling[1], best_tiling_score), + ) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/triton_bundler.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/triton_bundler.py new file mode 100644 index 0000000000000000000000000000000000000000..5bf5210a2cf467240327c6fa78ead967f3d89156 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/triton_bundler.py @@ -0,0 +1,404 @@ +import copy +import dataclasses +import logging +import os +import shutil +import uuid +from pathlib import Path +from typing import Optional + +from torch._dynamo.utils import counters, dynamo_timed, set_feature_use +from torch._utils_internal import justknobs_check +from torch.utils._filelock import FileLock + +from .runtime.runtime_utils import triton_cache_dir +from .utils import _IS_WINDOWS, GPU_KERNEL_BIN_EXTS + + +log = logging.getLogger(__name__) + + +@dataclasses.dataclass(frozen=True) +class TritonBundleEntry: + """ + When we have compiled a triton kernel, we take note of that kernel by + its triton generated hash, its device, and where this kernel is located. + This is the minimum information we can use to later retrieve this kernel + from file system. + """ + + kernel_hash: str + device: int + directory: str + + +@dataclasses.dataclass(frozen=True) +class TritonKernelArtifact: + """ + Artifact for an individual kernel converted to bytes. + Bytes could be a cubin, json, ttir, or ttgir. + """ + + filename: str + payload: bytes = dataclasses.field(repr=False) # Do not display binary + + +@dataclasses.dataclass(frozen=True) +class StaticallyLaunchedAutotuner: + """ + Represents a statically compiled CachingAutotuner object that we can + save directly in the cache. A CachingAutotuner is made up of a list of + StaticTritonCompileResults, each of which uses the cubin from a TritonKernelArtifact. + + Statically saved here have their cubin files saved by a corresponding TritonBundleEntry. + """ + + cache_key: str + kernel_name: str + kernel: "CachingAutotuner" # type: ignore[name-defined] # noqa: F821 + + +@dataclasses.dataclass(frozen=True) +class TritonKernelArtifacts: + """ + Collection of artifacts for a particular kernel. + """ + + kernel_hash: str + device: int + artifacts: list[TritonKernelArtifact] + + +@dataclasses.dataclass(frozen=True) +class TritonBundlerMetadata: + """ + Metadata used for instrumentation + """ + + cached_kernel_names: list[str] + statically_launched_kernel_names: list[str] + + +@dataclasses.dataclass(frozen=True) +class TritonBundle: + """ + Serializable bundle to save into FXGraphCache + """ + + kernel_artifacts: list[TritonKernelArtifacts] + static_autotuners: list[StaticallyLaunchedAutotuner] + + +class TritonBundler: + """ + Lightweight Triton Kernel bundler that notes each time we compile a triton + kernel. When collect is called, converts all the previously noted kernels and + their artifacts into a structured bytes blob, and later when write is called + it writes this structured blob back to file system. + + Intended Life cycle: + - TritonBundler.begin_compile is called when we start compiling in Inductor + - TritonBundler.put is called each time a Triton Kernel is compiled + - TritonBundler.collect is called when a cache entry is being generated + - TritonBundler.end_compile is called to indicate bundling is completed, + collect will execute this function as well. + - TritonBundler.read_and_emit is called when a cache entry is read + """ + + _entries: Optional[list[TritonBundleEntry]] = None + _static_autotuners: Optional[list[StaticallyLaunchedAutotuner]] = None + + # __grp__kernel_name.json contains metadata with source code paths + # we use this as sentinel value for search and replace + _REPLACE_BYTES: bytes = b"[REPLACE]" + + @staticmethod + def is_enabled() -> bool: + from torch._inductor import config + + if config.force_disable_caches: + return False + + if (b := config.bundle_triton_into_fx_graph_cache) is not None: + return b + + if not config.is_fbcode(): + return False + + return justknobs_check( + "pytorch/remote_cache:bundle_triton_into_fx_graph_cache_v2" + ) + + @classmethod + def begin_compile(cls) -> None: + """ + Initializes the TritonBundler. + The current TritonBundler bundle is finalized by TritonBundler.collect. + """ + if not TritonBundler.is_enabled(): + return + log.debug("TritonBundler.begin_compile is called") + assert cls._entries is None + cls._entries = [] + cls._static_autotuners = [] + + @classmethod + def end_compile(cls) -> None: + """ + Finalizes the TritonBundler. If collect is not yet called, it + discards the current bundle. + """ + log.debug("TritonBundler.end_compile is called") + cls._entries = None + cls._static_autotuners = None + + @classmethod + def put(cls, kernel_hash: str, device: int) -> None: + """ + Lazily observes that we have seen a Triton kernel compilation. Remembers + it for when collect is later called. + """ + if (entries := cls._entries) is not None: + entries.append( + TritonBundleEntry(kernel_hash, device, triton_cache_dir(device)) + ) + + @classmethod + def put_static_autotuner(cls, key: str, kernel: "CachingAutotuner") -> None: # type: ignore[name-defined] # noqa: F821 + from torch._inductor import config + + assert config.use_static_cuda_launcher + if (entries := cls._static_autotuners) is not None: + # Clear a bunch of unpicklable values and make a copy to save + # for FXGraphCache + old_values = kernel.prepare_for_pickle() + new_kernel = copy.deepcopy(kernel) + new_kernel.prepare_for_caching() + new_kernel._reload_kernel = None + + entries.append( + StaticallyLaunchedAutotuner( + key, + new_kernel.inductor_meta.get("kernel_name", "unknown_kernel"), + new_kernel, + ) + ) + + # Put the values back since we need it to use now + kernel.restore_after_unpickle(old_values) + + @classmethod + def collect_static_autotuners( + cls, + ) -> tuple[list[StaticallyLaunchedAutotuner], list[str]]: + if not cls._static_autotuners: + return [], [] + else: + log.info( + "Saving %d statically launchable CachingAutotuners", + len(cls._static_autotuners), + ) + static_autotuner_names = [i.kernel_name for i in cls._static_autotuners] + counters["inductor"]["triton_bundler_save_static_autotuner"] += 1 + return cls._static_autotuners, static_autotuner_names + + @classmethod + def load_autotuners( + cls, static_autotuners: Optional[list[StaticallyLaunchedAutotuner]] + ) -> list[str]: + """ + Load statically launchable CachingAutotuners into async_compile.CompiledTritonKernels + cache. + """ + if not static_autotuners: + return [] + + from torch._inductor.async_compile import CompiledTritonKernels + from torch._inductor.codecache import StaticAutotunerFuture + + log.info("Loading %d statically launchable autotuners", len(static_autotuners)) + kernel_names = [] + with dynamo_timed("TritonBundler.load_cached_static_autotuners"): + for result in static_autotuners: + try: + # Make sure the cubin path exists and is valid + for compile_result in result.kernel.compile_results: + compile_result.reload_cubin_path() + except RuntimeError: + log.warning( + "Failed to reload cubin file statically launchable autotuner %s", + result.kernel_name, + exc_info=True, + ) + continue + # We make a future instead of returning the kernel here so that + # kernels that are not statically launchable (i.e. cache miss) + # can launch a worker without waiting on the blocking step of + # StaticAutotunerFuture.result(). + CompiledTritonKernels._cache[result.cache_key] = StaticAutotunerFuture( + result.kernel + ) + counters["inductor"]["triton_bundler_load_static_autotuner"] += 1 + kernel_names.append(result.kernel_name) + return kernel_names + + @classmethod + def collect( + cls, + ) -> tuple[TritonBundle, Optional[TritonBundlerMetadata]]: + """ + This is the main function called when a cache write happens. This function + converts all the previously remembered kernels into bundled format so that + it can be written into a cache entry. + This function also finalizes the current bundle. + """ + from torch._inductor import config + + if not TritonBundler.is_enabled(): + cls.end_compile() + set_feature_use("triton_bundling", False) + return TritonBundle([], []), None + set_feature_use("triton_bundling", True) + + with dynamo_timed(key="TritonBundler.collect", log_pt2_compile_event=True): + entries = cls._entries + if entries is not None: + result: list[TritonKernelArtifacts] = [] + kernel_names: list[str] = [] + for entry in entries: + artifacts: list[TritonKernelArtifact] = [] + path = os.path.join(entry.directory, entry.kernel_hash) + if not os.path.exists(path): + continue + for filename in os.listdir(path): + filepath = os.path.join(path, filename) + try: + assert os.path.isfile(filepath) + with open(filepath, "rb") as file: + payload = file.read() + if filepath.endswith(".json"): + # Make sure there's no sentinel value + if TritonBundler._REPLACE_BYTES in payload: + log.warning( + "Bundle contains illegal %s, payload: %s", + TritonBundler._REPLACE_BYTES, + payload, + ) + raise AssertionError( + "Bundle contains illegal bytes" + ) + # Remove the path from payload + payload = payload.replace( + str.encode(path), TritonBundler._REPLACE_BYTES + ) + artifacts.append( + TritonKernelArtifact(filename, payload) + ) + counters["inductor"]["triton_bundler_save_kernel"] += 1 + except Exception: + log.debug("failed to collect triton kernel", exc_info=True) + extension = os.path.splitext(filename)[1] + if extension in GPU_KERNEL_BIN_EXTS.values(): + # Each kernel has bunch of files like .cubin(for cuda), .spv(for xpu), .json, .ttir + # Just append one of them without the extension + kernel_names.append(Path(filename).stem) + if artifacts: + result.append( + TritonKernelArtifacts( + entry.kernel_hash, + entry.device, + artifacts, + ) + ) + if config.use_static_cuda_launcher: + static_autotuners, static_kernel_names = ( + cls.collect_static_autotuners() + ) + else: + static_autotuners = [] + static_kernel_names = [] + cls.end_compile() + return TritonBundle(result, static_autotuners), TritonBundlerMetadata( + kernel_names, static_kernel_names + ) + return TritonBundle([], []), None + + @staticmethod + def read_and_emit(bundle: TritonBundle) -> Optional[TritonBundlerMetadata]: + """ + This is the main function called when a cache read happens. This function + converts the bundled format back into individual files and writes them + to the filesystem. + + NOTE: When we are writing to the filesystem, we assume exclusive access + to the target directory. + This means that if the target folder already exists and is non-empty, + we bail out. + Exclusive access means that no other process should be writing to + or reading from the target directory. + """ + from torch._inductor import config + + if not TritonBundler.is_enabled(): + return None + + with dynamo_timed( + key="TritonBundler.read_and_emit", log_pt2_compile_event=True + ): + kernel_names: list[str] = [] + + for artifacts in bundle.kernel_artifacts: + basedir = triton_cache_dir(artifacts.device) + directory = os.path.join(basedir, artifacts.kernel_hash) + + if os.path.exists(directory) and len(os.listdir(directory)) != 0: + # If directory already exists, we bail out and leave + # local disk to take care of caching + log.debug( + "Bailing out TritonBundler.read_and_emit, %s is non empty", + directory, + ) + continue + + Path(basedir).mkdir(parents=True, exist_ok=True) + + # Random ID to avoid any collisions + rnd_id = str(uuid.uuid4()) + tmp_dir = os.path.join(basedir, f"tmp.{rnd_id}") + os.makedirs(tmp_dir) + + for artifact in artifacts.artifacts: + filepath = os.path.join(tmp_dir, artifact.filename) + with open(filepath, "wb") as file: + payload = artifact.payload + if artifact.filename.endswith(".json"): + payload = payload.replace( + TritonBundler._REPLACE_BYTES, str.encode(directory) + ) + file.write(payload) + counters["inductor"]["triton_bundler_read_and_emit_kernel"] += 1 + extension = os.path.splitext(artifact.filename)[1] + if extension in GPU_KERNEL_BIN_EXTS.values(): + # Each kernel has bunch of files like .cubin(for cuda), spv(for xpu), .json, .ttir + # Just append one of them without the extension + kernel_names.append(Path(artifact.filename).stem) + + if _IS_WINDOWS: + with FileLock(directory + ".lock"): + if os.path.exists(directory): + shutil.rmtree(directory) + os.replace(tmp_dir, directory) + else: + # Atomic on POSIX systems + try: + os.replace(tmp_dir, directory) + except OSError: + log.warning("Directory %s is not empty - skipping!", tmp_dir) + + if config.use_static_cuda_launcher: + static_kernel_names = TritonBundler.load_autotuners( + bundle.static_autotuners + ) + else: + static_kernel_names = [] + return TritonBundlerMetadata(kernel_names, static_kernel_names) diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/utils.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/utils.py new file mode 100644 index 0000000000000000000000000000000000000000..85a1d03a04f71a0ed1608cc943774bb1496fcd05 --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/utils.py @@ -0,0 +1,4202 @@ +from __future__ import annotations + +import collections +import contextlib +import dataclasses +import enum +import functools +import importlib +import inspect +import io +import itertools +import logging +import math +import operator +import os +import platform +import re +import shutil +import statistics +import sys +import sysconfig +import tempfile +import textwrap +import time +import unittest +from collections.abc import ( + Callable, + Collection, + Generator, + Iterator, + Mapping, + MutableMapping, + MutableSet, +) +from datetime import datetime +from io import StringIO +from typing import ( + Any, + cast, + Concatenate, + Generic, + Literal, + NamedTuple, + Optional, + Protocol, + TYPE_CHECKING, + TypeAlias, + TypeGuard, + TypeVar, + Union, +) +from typing_extensions import dataclass_transform, ParamSpec, Self +from unittest import mock + +import sympy + +import torch +import torch.utils._pytree as pytree +from torch._inductor.analysis.device_info import datasheet_tops +from torch._inductor.runtime.hints import DeviceProperties +from torch.fx.passes.regional_inductor import _needs_inductor_compile +from torch.utils._dtype_abbrs import dtype_abbrs +from torch.utils._ordered_set import OrderedSet +from torch.utils._pytree import tree_flatten, tree_map_only + + +if TYPE_CHECKING: + from pathlib import Path + +OPTIMUS_EXCLUDE_POST_GRAD = [ + "activation_quantization_aten_pass", + "inductor_autotune_lookup_table", +] + +from torch.fx.experimental.symbolic_shapes import ( + free_symbols, + free_unbacked_symbols, + IterateExprs, + ShapeEnv, +) + + +if TYPE_CHECKING: + from collections.abc import Iterable, Sequence, ValuesView + + from torch import SymBool, SymFloat, SymInt + from torch._prims_common import ELEMENTWISE_TYPE_PROMOTION_KIND + from torch.fx import GraphModule + from torch.fx.node import Node + + from .codegen.common import WorkspaceArg + from .codegen.wrapper import PythonWrapperCodegen + from .dependencies import Dep + from .graph import GraphLowering + from .ir import Buffer, ExternKernel, IRNode, Layout, Operation, ReinterpretView + from .output_code import CompiledFxGraph + from .scheduler import BaseSchedulerNode, SchedulerBuffer + + +GPU_TYPES = ["cuda", "mps", "xpu", "mtia"] +T = TypeVar("T") + + +# defines here before import torch._dynamo is for avoiding circular import +# when get_gpu_type is imported from dynamo +@functools.cache +def get_gpu_type() -> str: + avail_gpus = [x for x in GPU_TYPES if getattr(torch, x).is_available()] + assert len(avail_gpus) <= 1 + gpu_type = "cuda" if len(avail_gpus) == 0 else avail_gpus.pop() + return gpu_type + + +from torch._dynamo.device_interface import get_interface_for_device +from torch._dynamo.utils import detect_fake_mode +from torch.autograd import DeviceType +from torch.autograd.profiler_util import EventList +from torch.fx.passes.graph_transform_observer import GraphTransformObserver +from torch.fx.passes.shape_prop import ShapeProp +from torch.utils._sympy.functions import ( + CeilDiv, + CleanDiv, + FloorDiv, + Identity, + ModularIndexing, +) +from torch.utils._sympy.symbol import make_symbol, SymT +from torch.utils._sympy.value_ranges import bound_sympy, ValueRanges + +from . import config +from .runtime.runtime_utils import ceildiv as runtime_ceildiv + + +_IS_WINDOWS = sys.platform == "win32" + +log = logging.getLogger(__name__) +perf_hint_log = torch._logging.getArtifactLogger(__name__, "perf_hints") + + +_T = TypeVar("_T") +VarRanges = dict[sympy.Expr, sympy.Expr] +InputType = Optional[Union[torch.Tensor, int, torch.SymInt]] + +GPU_KERNEL_BIN_EXTS = {"cuda": ".cubin", "xpu": ".spv"} + +GPU_ALIGN_BYTES = 16 +ALIGNMENT = 16 + +TMA_ALIGNMENT = 16 +TMA_DESCRIPTOR_SIZE = 128 + +ALIGN_BYTES = 64 +assert (ALIGN_BYTES & (ALIGN_BYTES - 1)) == 0 and ALIGN_BYTES >= 8, "must be power of 2" + + +def _align(nbytes: int) -> int: + """Round up to the nearest multiple of ALIGN_BYTES""" + return (nbytes + ALIGN_BYTES - 1) & -ALIGN_BYTES + + +def _is_aligned(v: sympy.Expr) -> bool: + """v can be statically proven to be a multiple of ALIGN_BYTES""" + if isinstance(v, (sympy.Add, sympy.Max)): + return all(map(_is_aligned, v.args)) + return isinstance(v, align) or sympy.gcd(v, ALIGN_BYTES) == ALIGN_BYTES + + +class align(sympy.Function): + """Symbolically round up to the nearest multiple of ALIGN_BYTES""" + + nargs = (1,) + is_integer = True + + @classmethod + def eval(cls, value: sympy.Expr) -> Optional[sympy.Expr]: + if isinstance(value, (int, sympy.Integer)): + return _align(int(value)) + if _is_aligned(value): + return value + + +@dataclasses.dataclass(frozen=True) +class GraphPartitionMap: + """ + Mapping from the partition info (e.g., input/output) to the graph info + """ + + # a unique id of graph partition + id: int + + # map partition input/output indices to graph input/output indices. None indicates + # a partition input/output is not a graph input/output. + input_index_mapping: list[Optional[int]] + output_index_mapping: list[Optional[int]] + + # name of constants read/written by the graph partition + constant_names: list[str] + + +def fp8_bench(fn: Callable[[], Any], warmup: int = 25, rep: int = 100) -> float: + """ + Returns benchmark results by examining torch profiler events. + This could be more accurate as it doesn't count CPU side overhead. + However, this also requires manually excluding irrelevant event, e.g. + vectorized_elementwise_kernel which is used to fill L2 cache, + various CUDA events, etc, so could also be fragile. + """ + + fn() + torch.cuda.synchronize() + cache = torch.empty(int(256e6 // 4), dtype=torch.float16, device="cuda") + + # Estimate the runtime of the function + start_event = torch.cuda.Event(enable_timing=True) + end_event = torch.cuda.Event(enable_timing=True) + start_event.record() + for _ in range(5): + cache.zero_() + fn() + end_event.record() + torch.cuda.synchronize() + estimate_ms = start_event.elapsed_time(end_event) / 5 + + # compute number of warmup and repeat + n_warmup = max(1, int(warmup / estimate_ms)) + n_repeat = max(1, int(rep / estimate_ms)) + + # Warm-up + for _ in range(n_warmup): + fn() + + start_event = [torch.cuda.Event(enable_timing=True) for _ in range(n_repeat)] + end_event = [torch.cuda.Event(enable_timing=True) for _ in range(n_repeat)] + with torch.profiler.profile( + activities=[ + torch.profiler.ProfilerActivity.CUDA, + ] + ) as p: + torch.cuda.synchronize() + for i in range(n_repeat): + cache.zero_() + start_event[i].record() + with torch.cuda.nvtx.range("RunCudaModule"): + fn() + end_event[i].record() + torch.cuda.synchronize() + times = torch.tensor( + [s.elapsed_time(e) for s, e in zip(start_event, end_event)] + ) + + res = torch.mean(times).item() + log.debug("raw events") + log.debug(p.key_averages().table(sort_by="self_device_time_total", row_limit=-1)) + filtered_events = EventList( + [ + event + for event in p.events() + if ( + event.device_type == DeviceType.CUDA + and re.match(r"fused_abs_max_\d", event.name) is not None + ) + ] + ) + if filtered_events: + res -= ( + statistics.mean(event.device_time_total for event in filtered_events) + / 1000.0 + ) + + log.debug("profiling results: %s ms", res) + return res + + +def do_bench_using_profiling( + fn: Callable[[], Any], + warmup: int = 25, + rep: int = 100, + is_vetted_benchmarking: bool = False, +) -> float: + # We did't use decorator may_distort_benchmarking_result directly since that + # requires us to import torch._inductor.runtime.benchmarking into global scope. + # Importing torch._inductor.runtime.benchmarking will cause cuda initialization + # (because of calling torch.cuda.available in global scope) + # which cause failure in vllm when it create child processes. Check log: + # https://gist.github.com/shunting314/c194e147bf981e58df095c14874dd65a + # + # Another way to solve the issue is to just move do_bench_using_profiling + # to torch._inductor.runtime.benchmarking and change all the call site. + # But that's not trivial due to so many call sites in and out of pytorch. + + from torch._inductor.runtime.benchmarking import may_distort_benchmarking_result + + return may_distort_benchmarking_result(_do_bench_using_profiling)( + fn, warmup, rep, is_vetted_benchmarking + ) + + +def _do_bench_using_profiling( + fn: Callable[[], Any], + warmup: int = 25, + rep: int = 100, + is_vetted_benchmarking: bool = False, +) -> float: + """ + Returns benchmark results by examining torch profiler events. + This could be more accurate as it doesn't count CPU side overhead. + However, this also requires manually excluding irrelevant event, e.g. + vectorized_elementwise_kernel which is used to fill L2 cache, + various CUDA events, etc, so could also be fragile. + """ + + if not is_vetted_benchmarking: + from torch._inductor.runtime.benchmarking import may_ban_benchmarking + + may_ban_benchmarking() + + fn() + torch.cuda.synchronize() + cache = torch.empty(int(256e6 // 4), dtype=torch.int, device="cuda") + + # Estimate the runtime of the function + start_event = torch.cuda.Event(enable_timing=True) + end_event = torch.cuda.Event(enable_timing=True) + start_event.record() + for _ in range(5): + cache.zero_() + fn() + end_event.record() + torch.cuda.synchronize() + estimate_ms = start_event.elapsed_time(end_event) / 5 + + # compute number of warmup and repeat + n_warmup = max(1, int(warmup / estimate_ms)) + n_repeat = max(1, int(rep / estimate_ms)) + + # Warm-up + for _ in range(n_warmup): + fn() + + torch.cuda.synchronize() + + with torch.profiler.profile( + activities=[ + torch.profiler.ProfilerActivity.CUDA, + ] + ) as p: + # Benchmark + for _ in range(n_repeat): + # we clear the L2 cache before each run + cache.zero_() + # record time of `fn` + fn() + # Record clocks + torch.cuda.synchronize() + + log.debug("raw events") + log.debug(p.key_averages().table(sort_by="self_device_time_total", row_limit=-1)) + + filtered_events = EventList( + [ + event + for event in p.events() + if event.device_type == DeviceType.CUDA and event.name != "Context Sync" + ] + ) + if len(filtered_events) % n_repeat != 0: + raise RuntimeError( + "Failed to divide all profiling events into #repeat groups. " + "#CUDA events: %d, #repeats: %s", + len(filtered_events), + n_repeat, + ) + num_event_per_group = len(filtered_events) / n_repeat + actual_events = EventList( + [ + event + for i, event in enumerate(filtered_events) + if i % num_event_per_group != 0 + ] + ) + actual_events._build_tree() + actual_events = actual_events.key_averages() + + log.debug("profiling time breakdown") + log.debug(actual_events.table(row_limit=-1)) + + res = sum(event.device_time_total for event in actual_events) / 1000.0 / n_repeat + log.debug("profiling results: %s ms", res) + return res + + +@functools.cache +def has_torchvision_roi_align() -> bool: + try: + from torchvision.ops import roi_align # noqa: F401 + + torch._C._dispatch_has_kernel_for_dispatch_key("torchvision::nms", "Meta") + return roi_align is not None and hasattr( + getattr(torch.ops, "torchvision", None), "roi_align" + ) + except ImportError: + return False + except RuntimeError as e: + assert "torchvision::nms does not exist" in str(e) + return False + + +def decode_device(device: Union[Optional[torch.device], str]) -> torch.device: + if device is None: + return torch.tensor(0.0).device # default device + if isinstance(device, str): + device = torch.device(device) + if device.type not in ("cpu", "meta") and device.index is None: + device_interface = get_interface_for_device(device.type) + return torch.device(device.type, index=device_interface.Worker.current_device()) + return device + + +def sympy_product(it: Iterable[sympy.Expr]) -> sympy.Expr: + return functools.reduce(operator.mul, it, sympy.S.One) + + +def sympy_dot(seq1: Sequence[sympy.Expr], seq2: Sequence[sympy.Expr]) -> sympy.Expr: + assert len(seq1) == len(seq2) + return sympy.expand(sum(a * b for a, b in zip(seq1, seq2))) + + +def unique(it: Iterable[_T]) -> ValuesView[_T]: + return {id(x): x for x in it}.values() + + +def ceildiv( + number: Union[int, sympy.Expr], denom: Union[int, sympy.Expr] +) -> Union[int, sympy.Expr]: + if isinstance(number, sympy.Expr) or isinstance(denom, sympy.Expr): + return CeilDiv(sympy.sympify(number), sympy.sympify(denom)) + # TODO: There is a bug in a call to this function, to repro: + # python benchmarks/dynamo/huggingface.py --inductor -d cuda --accuracy + # --amp --only YituTechConvBert --dynamic-shapes + assert isinstance(number, int) and isinstance(denom, int), ( + f"{number}: {type(number)}, {denom}: {type(denom)}" + ) + return runtime_ceildiv(number, denom) + + +def _type_of(key: Optional[torch.dtype]) -> str: + # Use the function here to get rid of dependencies on the Triton during the codegen. + # Refer to Triton implementation here: + # https://github.com/triton-lang/triton/blob/98b5945d2aef679e00ebca8e07c35c3658ec76de/python/triton/runtime/jit.py#L238 + # `None` is nullptr. Implicitly convert to *i8. + if key is None: + return "*i8" + dtype_str = str(key).split(".")[-1] + tys = { + "bool": "i1", + "float8e4nv": "fp8e4nv", + "float8e5": "fp8e5", + "float8e4b15": "fp8e4b15", + "float8e4b15x4": "fp8e4b15x4", + "float8_e4m3fn": "fp8e4nv", + "float8_e5m2": "fp8e5", + # TODO: remove when support is added in triton + # https://github.com/triton-lang/triton/issues/6054 + "float8_e8m0fnu": "u8", + "float4_e2m1fn_x2": "u8", + "float16": "fp16", + "bfloat16": "bf16", + "float32": "fp32", + "float64": "fp64", + "int8": "i8", + "int16": "i16", + "int32": "i32", + "int64": "i64", + "uint8": "u8", + "uint16": "u16", + "uint32": "u32", + "uint64": "u64", + } + # reinterpret can create triton type + tys.update({v: v for v in list(tys.values())}) + return key if isinstance(key, str) else f"*{tys[dtype_str]}" + + +def convert_shape_to_inductor( + lst: Iterable[Union[int, torch.SymInt]], +) -> list[sympy.Expr]: + """ + Gets the shape and stride of a tensor. For non-symbolic tensors, this is + trivial. But for symbolic tensors, we need to map from SymIntNode into + sympy.Expr. + """ + return [sympy.sympify(i) for i in lst] + + +def convert_to_symint(i: Union[int, sympy.Expr]) -> Union[int, torch.SymInt]: + """ + Like convert_shape_to_symint, but operates on a single expression. + """ + from .virtualized import V + + return ( + i + if isinstance(i, int) + else ( + int(i) + if isinstance(i, sympy.Integer) + else V.graph.sizevars.shape_env.create_symintnode(i, hint=None) + ) + ) + + +def convert_shape_to_symint( + lst: Iterable[Union[int, sympy.Expr]], +) -> list[Union[int, torch.SymInt]]: + """ + Takes a list of shapes from Inductor and converts them into symints (or just + ints if all shapes are static). + """ + return [convert_to_symint(i) for i in lst] + + +def is_view(op: torch._ops.OpOverload) -> bool: + """ + Does this op overload have aliasing + """ + return any(a.alias_info is not None for a in op._schema.arguments) + + +def is_pointwise_use( + use: Node, + is_pointwise_fn: Callable[[torch._ops.OpOverload], bool] = lambda _: False, +) -> bool: + """ + Do all uses of this op have torch.Tag.pointwise or return True for optional `is_pointwise_fn` + + Uses in views ops will follow the views uses + """ + + if use.op != "call_function": + return False + if not ( + isinstance(use.target, torch._ops.OpOverload) or use.target is operator.getitem + ): + return False + + target = cast(torch._ops.OpOverload, use.target) + if target is operator.getitem or is_view(target): + return all(is_pointwise_use(u, is_pointwise_fn) for u in use.users) + + return torch.Tag.pointwise in target.tags or is_pointwise_fn(target) + + +def gen_gm_and_inputs( + target: Any, args: list[Any], kwargs: dict[str, Any] +) -> tuple[GraphModule, list[torch.Tensor]]: + g = torch.fx.Graph() + graph_args: list[torch.Tensor] = [] + + def add_tensor_arg(arg: torch.Tensor) -> Node: + graph_args.append(arg) + return g.placeholder(f"arg{len(graph_args)}") + + node = g.call_function( + target, *tree_map_only(torch.Tensor, add_tensor_arg, (args, kwargs)) + ) + if ( + len(target._schema.returns) == 1 + and str(target._schema.returns[0].type) == "Tensor" + ): + node = (node,) # type: ignore[assignment] + g.output(node) + + gm = torch.fx.GraphModule({}, g) + return gm, graph_args + + +def synchronize(device: str = "cuda") -> None: + if device == "cpu": + return + device_interface = get_interface_for_device(device) + if device_interface.is_available(): + device_interface.synchronize() + + +def timed( + model: Callable[..., Any], + example_inputs: Sequence[Any], + times: int = 1, + device: str = "cuda", +) -> float: + synchronize(device) + torch.manual_seed(1337) + t0 = time.perf_counter() + for _ in range(times): + result = model(*example_inputs) + synchronize(device) + t1 = time.perf_counter() + # GC the result after timing + assert result is not None # type: ignore[possibly-undefined] + return t1 - t0 + + +def print_performance( + model: Callable[..., Any], + example_inputs: Sequence[Any] = (), + times: int = 10, + repeat: int = 10, + baseline: float = 1.0, + device: str = "cuda", +) -> float: + timings = torch.tensor( + [timed(model, example_inputs, times, device) for _ in range(repeat)] + ) + took = torch.median(timings) / times + print(f"{took / baseline:.6f}") + return took.item() + + +def precompute_method(obj: Any, method: str) -> None: + """Replace obj.method() with a new method that returns a precomputed constant.""" + result = getattr(obj, method)() + setattr(obj, method, lambda: result) + + +def precompute_methods(obj: Any, methods: list[str]) -> None: + """Replace methods with new methods that returns a precomputed constants.""" + for method in methods: + precompute_method(obj, method) + + +def cmp(a: int, b: int) -> int: + return int(a > b) - int(a < b) + + +def pad_listlike(x: Union[int, Sequence[int]], size: int) -> Sequence[int]: + if isinstance(x, int): + return [x] * size + if len(x) == 1: + return type(x)([x[0]]) * size # type: ignore[call-arg, operator, return-value] + return x + + +# Used to ensure that iterating over a set is deterministic +def tuple_sorted(x: tuple[_T, ...]) -> list[_T]: + if len(x) == 0: + return [] + + def sort_func(elem: _T) -> str: + if isinstance(elem, str): + return elem + + from .scheduler import BaseSchedulerNode + + assert isinstance(elem, BaseSchedulerNode) + return elem.get_name() + + return sorted(x, key=sort_func) + + +P = ParamSpec("P") +RV = TypeVar("RV", covariant=True) +FN_TYPE = Callable[Concatenate[Any, P], RV] + + +class CachedMethod(Protocol, Generic[P, RV]): + @staticmethod + def clear_cache(cache: Any) -> None: ... + + def __call__(self, *args: P.args, **kwargs: P.kwargs) -> RV: ... + + +# See https://github.com/python/mypy/issues/13222#issuecomment-1193073470 to understand the type signature +def cache_on_self(fn: Callable[Concatenate[Any, P], RV]) -> CachedMethod[P, RV]: + name = fn.__name__ + key = f"__{name}_cache" + + # wrapper is likely on the hot path, compile a specialized version of it + ctx = {"fn": fn} + exec( + f"""\ + def {name}_cache_on_self(self): + try: + return self.{key} + except AttributeError: + pass + rv = fn(self) + object.__setattr__(self, "{key}", rv) + return rv + """.lstrip(), + ctx, + ) + wrapper = functools.wraps(fn)(ctx[f"{name}_cache_on_self"]) + + def clear_cache(self: Any) -> None: + if hasattr(self, key): + delattr(self, key) + + wrapper.clear_cache = clear_cache # type: ignore[attr-defined] + return wrapper # type: ignore[return-value] + + +def cache_property_on_self(fn: Callable[P, RV]) -> CachedMethod[P, RV]: + """ + Variant of cache_on_self for properties. The only difference is the type signature. + """ + # pyrefly: ignore [bad-argument-type] + return cache_on_self(fn) + + +def cache_on_self_and_args( + class_name: str, +) -> Callable[[FN_TYPE[P, RV]], FN_TYPE[P, RV]]: + # include both class_name and fn_name in the key to support `super().fn(self, **args, **kwargs)` calls. + + def wrapper( + fn: FN_TYPE[P, RV], + ) -> FN_TYPE[P, RV]: + key = f"__{class_name}_{fn.__name__}_cache" + + # wrapper is likely on the hot path, compile a specialized version of it + ctx = {"fn": fn} + exec( + f"""\ + def inner(self: Any, *args: P.args, **kwargs: P.kwargs) -> RV: + args_kwargs = (args, tuple(sorted(kwargs.items()))) + + if not hasattr(self, "{key}"): + object.__setattr__(self, "{key}", {{}}) + + cache = self.{key} + + try: + return cache[args_kwargs] + except KeyError: + pass + + rv = fn(self, *args, **kwargs) + + cache[args_kwargs] = rv + return rv + """.lstrip(), + ctx, + ) + inner = functools.wraps(fn)(ctx["inner"]) + + def clear_cache(self: Any) -> None: + if hasattr(self, key): + delattr(self, key) + + inner.clear_cache = clear_cache # type: ignore[attr-defined] + return inner + + return wrapper + + +def aggregate_origins( + node_schedule: Union[Sequence[BaseSchedulerNode], ExternKernel], +) -> OrderedSet[Node]: + from . import ir + + if isinstance(node_schedule, list): + return functools.reduce( + operator.or_, + [ + # pyrefly: ignore [missing-attribute] + node.node.origins + for node in node_schedule + if hasattr(node, "node") and node.node + ], + OrderedSet(), + ) + elif isinstance(node_schedule, ir.ExternKernel): + return node_schedule.origins + else: + return OrderedSet() + + +def get_fused_kernel_name( + node_schedule: Sequence[BaseSchedulerNode], + descriptive_names: Literal[True, "torch", "original_aten", "inductor_node"], +) -> str: + all_origins = aggregate_origins(node_schedule) + if descriptive_names == "original_aten": + + def get_origin_meta_str(origin): + original_aten = origin.meta["original_aten"] + key = "" + if isinstance(original_aten, torch._ops.OpOverload): + key = original_aten._overloadpacket.__name__ + elif isinstance(original_aten, torch._ops.HigherOrderOperator): + key = str(original_aten.name()) + return key + + # Bases the kernel name off of the top-level aten operator (i.e. pre-decompositions) + sources = [ + get_origin_meta_str(origin) + for origin in all_origins + if origin.op == "call_function" + and "original_aten" in origin.meta + and origin.meta["original_aten"] is not None + ] + sources = sorted(OrderedSet(sources)) + elif descriptive_names == "torch": + # Bases the kernel name off of the top-level "torch" operator (i.e. post-dynamo graph) + sources = [] + for origin in all_origins: + if origin.op == "call_function": + source_fn = None + suffix = "" + if "source_fn_stack" in origin.meta: + source_fn = origin.meta["source_fn_stack"][-1] + elif "fwd_source_fn_stack" in origin.meta: + # backward nodes have "fwd_source_fn_stack" instead + source_fn = origin.meta["fwd_source_fn_stack"][-1] + suffix = "backward" + if not source_fn: + continue + if isinstance(source_fn[1], str): + sources.append(source_fn[1] + suffix) + else: + sources.append(source_fn[1].__name__ + suffix) + + sources = sorted(OrderedSet(sources)) + elif descriptive_names == "inductor_node": + sources = [ + origin.name for origin in all_origins if origin.op == "call_function" + ] + else: + raise NotImplementedError + return "_".join(["fused"] + sources) + + +def get_kernel_metadata( + node_schedule: Union[Sequence[BaseSchedulerNode], ExternKernel], + wrapper: PythonWrapperCodegen, +) -> tuple[str, str]: + """ + Retrieves metadata information for a kernel. + Args: + node_schedule (Union[Sequence[BaseSchedulerNode], ExternKernel]): + Either a sequence of BaseSchedulerNode objects or an ExternKernel instance. + wrapper (PythonWrapperCodegen): + An instance of PythonWrapperCodegen, used to define the code comment format. + Returns: + tuple[str, str]: + A tuple containing two strings: + - The first string represents the kernel's metadata. + - The second string represent the kernel's detailed metadata. + """ + + all_origins = aggregate_origins(node_schedule) + inductor_nodes = [origin for origin in all_origins if origin.op == "call_function"] + + from_node_dict = collections.defaultdict(list) + original_aten_dict = collections.defaultdict(list) + + # Attempt to sort `inductor_nodes` topologically. Note that the case + # where `inductor_nodes` contains nodes from multiple graph instances + # is not supported. An example of this is conditional statements. + single_graph = None + if inductor_nodes: + unique_graphs = OrderedSet(n.graph for n in inductor_nodes) + if len(unique_graphs) == 1: + single_graph = inductor_nodes[0].graph + # create a map of idx -> node and cache it + if not hasattr(single_graph, "_inductor_kernel_metadata_node_to_idx_map"): + node_to_idx_map = {n: idx for idx, n in enumerate(single_graph.nodes)} + single_graph._inductor_kernel_metadata_node_to_idx_map = node_to_idx_map # type: ignore[attr-defined] + inductor_nodes.sort( + key=lambda n: single_graph._inductor_kernel_metadata_node_to_idx_map[n] # type: ignore[attr-defined] + ) + + for node in inductor_nodes: + if "original_aten" in node.meta and node.meta["original_aten"] is not None: + original_aten = node.meta["original_aten"] + key = None + if isinstance(original_aten, torch._ops.OpOverload): + key = str(original_aten._overloadpacket) + elif isinstance(original_aten, torch._ops.HigherOrderOperator): + key = str(original_aten.name()) + if key: + original_aten_dict[key].append(node.name) + if "from_node" in node.meta: + key = node.meta["from_node"][0].name + from_node_dict[key].append(node.name) + elif node.meta.get("partitioner_tag") == "is_backward": + # backward nodes currently don't have a "from node" + from_node_dict[node.name].append(node.name) + sort_str = "Topologically Sorted" if single_graph is not None else "Unsorted" + metadata = ( + f"{wrapper.comment} {sort_str} Source Nodes: [{', '.join(from_node_dict.keys())}], " + f"Original ATen: [{', '.join(original_aten_dict.keys())}]" + ) + + # trace back to original node here + detailed_metadata = [f"{wrapper.comment} Source node to ATen node mapping:"] + for original_node, nodes in sorted(from_node_dict.items()): + detailed_metadata.append( + f"{wrapper.comment} {original_node} => {', '.join(sorted(nodes))}" + ) + + # print the aot_autograd graph fragment + if single_graph is not None: + from . import ir + + detailed_metadata.append(f"{wrapper.comment} Graph fragment:") + all_reads: OrderedSet[str] = OrderedSet() + all_writes: list[str] = [] + if not isinstance(node_schedule, ir.ExternKernel): + from .virtualized import V + + def get_buffer_info( + buffer: Union[ir.TensorBox, ir.Buffer, ir.TorchBindObject], rw_name: str + ) -> tuple[str, ir.Layout | None]: + if isinstance(buffer, ir.TensorBox) and isinstance( + buffer.data, ir.StorageBox + ): + origin_node = buffer.data.data.origin_node + else: + origin_node = buffer.origin_node + if origin_node is None: + # use the read/write name if no origin node is found + name = rw_name + else: + name = origin_node.name + try: + layout = buffer.get_layout() + except NotImplementedError: + layout = None + return name, layout + + def stringify_shape(shape: Iterable[int]) -> str: + return f"[{', '.join([str(x) for x in shape])}]" + + def stringfy_layout(layout: ir.Layout | None) -> str: + if layout is None: + return "" + shape_annotation = f"{stringify_shape(layout.size)}" + stride_annotation = f"{stringify_shape(layout.stride)}" + device_annotation = f"{layout.device}" + + return ( + f'"{dtype_abbrs[layout.dtype]}{shape_annotation}' + f'{stride_annotation}{device_annotation}"' + ) + + for n in node_schedule: + if not hasattr(n, "read_writes") or n.read_writes is None: + continue + if hasattr(n.read_writes, "reads") and n.read_writes.reads is not None: + for r in n.read_writes.reads: + # Remove the dupricated inputs + if r.name in all_reads: + continue + all_reads.add(r.name) + buffer = V.graph.try_get_buffer(r.name) + if buffer is None: + continue + input_name, layout = get_buffer_info(buffer, r.name) + detailed_metadata.append( + f"{wrapper.comment} %{input_name} : Tensor " + f"{stringfy_layout(layout)} = PlaceHolder[target={input_name}]" + ) + + if ( + hasattr(n.read_writes, "writes") + and n.read_writes.writes is not None + ): + for w in n.read_writes.writes: + buffer = V.graph.try_get_buffer(w.name) + if buffer is None: + continue + output_name, _ = get_buffer_info(buffer, w.name) + + all_writes.append("%" + output_name) + + for node in inductor_nodes: + detailed_metadata.append( + f"{wrapper.comment} {node.format_node(include_tensor_metadata=True)}" + ) + + detailed_metadata.append(f"{wrapper.comment} return {','.join(all_writes)}") + + return metadata, "\n".join(detailed_metadata) + + +def dominated_nodes( + initial_queue: Iterable[torch.fx.Node], + skip_filter: Optional[Callable[[Any], bool]] = None, +) -> OrderedSet[torch.fx.Node]: + """Returns the set of nodes whose values depend on those within initial_queue""" + initial_queue = list(initial_queue) + dominated_set = OrderedSet(initial_queue) + + while initial_queue: + node = initial_queue.pop() + for user in node.users: + if skip_filter and skip_filter(user): + continue + if user not in dominated_set: + dominated_set.add(user) + initial_queue.append(user) + + return dominated_set + + +def gather_origins( + args: Sequence[IRNode], kwargs: dict[str, IRNode] +) -> OrderedSet[torch.fx.Node]: + from . import ir + + def is_unrealized_node(n: IRNode) -> bool: + if isinstance(n, ir.TensorBox): + return is_unrealized_node(n.data) + if isinstance(n, ir.StorageBox): + return is_unrealized_node(n.data) + return isinstance(n, ir.IRNode) and not isinstance( + n, + ( + ir.ComputedBuffer, + ir.InputsKernel, + ir.InputBuffer, + ir.TemplateBuffer, + ), + ) + + # kwargs and args may include a container of node, for example torch.cat([t1, t2]) + # flatten them before search the unrealized nodes + kwargs_flatten, _ = tree_flatten(kwargs) + kwargs_origins = [val.origins for val in kwargs_flatten if is_unrealized_node(val)] + args_flatten, _ = tree_flatten(args) + args_origins = [val.origins for val in args_flatten if is_unrealized_node(val)] + return OrderedSet(itertools.chain(*args_origins, *kwargs_origins)) + + +def sympy_str(expr: sympy.Expr) -> str: + """ + Normal sympy str is very slow, this is a lot faster. The result are + somewhat worse, as it doesn't do as much simplification. So don't + use this for final codegen. + """ + + def is_neg_lead(expr: sympy.Expr) -> bool: + return ( + isinstance(expr, sympy.Mul) and len(expr.args) == 2 and expr.args[0] == -1 + ) + + def sympy_str_add(expr: sympy.Expr) -> str: + if isinstance(expr, sympy.Add): + # Special case 'a - b'. Note that 'a - b - c' will still appear as + # 'a + -1 * b + -1 * c'. + if len(expr.args) == 2 and is_neg_lead(expr.args[1]): + return f"{sympy_str_mul(expr.args[0])} - {sympy_str_mul(expr.args[1].args[1])}" + else: + return " + ".join(map(sympy_str_mul, expr.args)) + else: + return sympy_str_mul(expr) + + def sympy_str_mul(expr: sympy.Expr) -> str: + if isinstance(expr, sympy.Mul): + if is_neg_lead(expr): + # Special case '-a'. Note that 'a * -b' will still appear as + # '-1 * a * b'. + return f"-{sympy_str_atom(expr.args[1])}" + else: + return " * ".join(map(sympy_str_atom, expr.args)) + else: + return sympy_str_atom(expr) + + def sympy_str_atom(expr: sympy.Expr) -> str: + if isinstance(expr, sympy.Symbol): + return expr.name + elif isinstance(expr, (sympy.Add, sympy.Mul)): + return f"({sympy_str_add(expr)})" + elif isinstance(expr, (ModularIndexing, CleanDiv, FloorDiv, Identity)): + return f"{expr.func.__name__}({', '.join(map(sympy_str, expr.args))})" + else: + return str(expr) + + return sympy_str_add(expr) + + +def get_bounds_index_expr(index: sympy.Expr) -> ValueRanges[Any]: + from .virtualized import V + + # If this expression does not come from an FX node, we compute its bounds + if ( + config.compute_all_bounds + and (fx_node := getattr(V.interpreter, "current_node", None)) + and fx_node.target != "index_expr" + ): + return bound_sympy(index) + else: + return ValueRanges.unknown() + + +def prefix_is_reduction(prefix: str) -> bool: + return prefix[0] == "r" + + +def sympy_index_symbol_with_prefix(prefix: SymT, idx: int) -> sympy.Symbol: + """ + Used to generate an integer-nonnegative symbol. + """ + # This should never be used for creating shape/stride symbols, as those + # should all be allocated before Inductor. + assert prefix != SymT.SIZE + # NOTE: shape symbols are positive (> 0), but index variables are only + # non-negative (>= 0). + return make_symbol(prefix, idx, integer=True, nonnegative=True) + + +def generate_assert(check: bool) -> bool: + return (check or config.debug_index_asserts) and config.assert_indirect_indexing + + +def sympy_index_symbol(name: str) -> sympy.Symbol: + """ + Used to generate an integer-nonnegative symbol. + """ + # This should never be used for creating shape/stride symbols, as those + # should all be allocated before Inductor. + assert name[0] != "s" + # NOTE: shape symbols are positive (> 0), but index variables are only + # non-negative (>= 0). + return sympy.Symbol(name, integer=True, nonnegative=True) + + +def sympy_subs(expr: sympy.Expr, replacements: dict[sympy.Expr, Any]) -> sympy.Expr: + """ + When the passed replacement symbol v is a string, it is converted to a symbol with name v that + have the same replaced expression integer and nonnegative properties. + """ + + def to_symbol( + replaced: sympy.Expr, replacement: Union[sympy.Expr, str] + ) -> sympy.Symbol: + assert isinstance(replaced, sympy.Expr) + if isinstance(replacement, str): + return sympy.Symbol( + replacement, + integer=replaced.is_integer, # type: ignore[attr-defined] + nonnegative=replaced.is_nonnegative, # type: ignore[attr-defined] + ) + else: + return replacement + + # xreplace is faster than subs, but is way more picky + return sympy.sympify(expr).xreplace( + {k: to_symbol(k, v) for k, v in replacements.items()} + ) + + +def is_symbolic(a: Any) -> TypeGuard[Union[torch.SymInt, torch.Tensor]]: + return isinstance(a, torch.SymInt) or ( + isinstance(a, torch.Tensor) + and any(is_symbolic(x) for x in itertools.chain(a.size(), a.stride())) + ) + + +def any_is_symbolic(*args: Any) -> bool: + return any(is_symbolic(a) for a in args) + + +# Ops that are fundamentally incompatible with CUDA graph capture +# (e.g., CPU synchronization, dynamic memory allocation, etc.) +FORBIDDEN_CUDAGRAPH_OPS = frozenset( + [ + "aten._fused_moving_avg_obs_fq_helper.default", + "aten._fused_moving_avg_obs_fq_helper_functional.default", + "fbgemm.dense_to_jagged.default", + "fbgemm.jagged_to_padded_dense.default", + "run_and_save_rng_state", + "run_with_rng_state", + "aten._local_scalar_dense", + # Technically, it's not necessary to ban this, because an + # assert_scalar with constant arguments can be validly run + # with CUDA graphs, but the operator is also pointless with + # constant arguments, so might as well ban + "aten._assert_scalar", + ] +) + + +def get_first_incompatible_cudagraph_node( + gm: torch.fx.GraphModule, +) -> Optional[torch.fx.Node]: + from torch.fx.experimental.symbolic_shapes import free_unbacked_symbols + + for node in gm.graph.nodes: + if is_cudagraph_unsafe_fx_node(node): + return node + + if (val := node.meta.get("val")) is not None and free_unbacked_symbols(val): + return node + + return None + + +def output_node(gm: torch.fx.GraphModule) -> Node: + """Get the output node from an FX graph""" + last_node = next(iter(reversed(gm.graph.nodes))) + assert last_node.op == "output" + return last_node + + +def get_all_devices(gm: torch.fx.GraphModule) -> OrderedSet[torch.device]: + placeholder_nodes = gm.graph.find_nodes(op="placeholder") + input_devices: OrderedSet[torch.device] = OrderedSet( + node.meta["val"].device + for node in placeholder_nodes + if isinstance(node.meta.get("val"), torch.Tensor) + ) + + out_arg = output_node(gm).args[0] # type: ignore[union-attr] + out_args = out_arg if isinstance(out_arg, tuple) else (out_arg,) + out_devices: OrderedSet[torch.device] = OrderedSet( + arg.meta["val"].device + for arg in out_args + if isinstance(arg, torch.fx.Node) + and isinstance(arg.meta.get("val"), torch.Tensor) + ) + return input_devices | out_devices + + +import gc + + +def unload_xpu_triton_pyds() -> None: + # unload __triton_launcher.pyd + for module_name in list(sys.modules.keys()): + if not module_name.startswith("torch._inductor.runtime.compile_tasks."): + continue + m = sys.modules[module_name] + for attr_name in m.__dict__: + if attr_name.startswith("triton_"): + kernel = getattr(m, attr_name) + if isinstance( + kernel, torch._inductor.runtime.triton_heuristics.CachingAutotuner + ): + for result in kernel.compile_results: + if isinstance( + result, + torch._inductor.runtime.triton_heuristics.TritonCompileResult, + ): + # pyrefly: ignore [missing-attribute] + result.kernel.run.mod.__del__() + del sys.modules[module_name] + + # unload spirv_utils.pyd + if "triton.runtime.driver" in sys.modules: + mod = sys.modules["triton.runtime.driver"] + del type(mod.driver.active.utils).instance + del mod.driver.active.utils + + gc.collect() + + +_registered_caches: list[Any] = [] + + +def clear_on_fresh_cache(obj: Any) -> Any: + """ + Use this decorator to register any caches that should be cache_clear'd + with fresh_cache(). + """ + if not hasattr(obj, "cache_clear") or not callable(obj.cache_clear): + raise AttributeError(f"{obj} does not have a cache_clear method") + + _registered_caches.append(obj) + return obj + + +def clear_caches() -> None: + """ + Clear all registered caches. + """ + for obj in _registered_caches: + obj.cache_clear() + + +@contextlib.contextmanager +def fresh_cache( + cache_entries: Optional[dict[str, Any]] = None, + dir: Optional[str] = None, + delete: bool = True, +) -> Iterator[None]: + """ + Contextmanager that provides a clean tmp cachedir for pt2 caches. + + Optionally, pass a dict as 'cache_entries' to get a list of filenames and sizes + generated with this cache instance. + """ + clear_caches() + + from torch._inductor.cpp_builder import normalize_path_separator + + inductor_cache_dir = normalize_path_separator(tempfile.mkdtemp(dir=dir)) + try: + with mock.patch.dict( + os.environ, {"TORCHINDUCTOR_CACHE_DIR": inductor_cache_dir} + ): + log.debug("Using inductor cache dir %s", inductor_cache_dir) + triton_cache_dir = normalize_path_separator( + os.path.join(inductor_cache_dir, "triton") + ) + with mock.patch.dict(os.environ, {"TRITON_CACHE_DIR": triton_cache_dir}): + yield + if isinstance(cache_entries, dict): + assert len(cache_entries) == 0, "expected empty cache_entries dict" + if os.path.exists(triton_cache_dir): + files = os.listdir(triton_cache_dir) + cache_entries.update( + { + f: os.path.getsize(os.path.join(triton_cache_dir, f)) + for f in files + if ".lock" not in f + } + ) + if delete: + if is_windows() and torch.xpu.is_available(): + unload_xpu_triton_pyds() + + shutil.rmtree( + inductor_cache_dir, + # Let's not fail if we can't clean up the temp dir. Also note that for + # Windows, we can't delete the loaded modules because the module binaries + # are open. + ignore_errors=is_windows(), + onerror=lambda func, path, exc_info: log.warning( + "Failed to remove temporary cache dir at %s", + inductor_cache_dir, + exc_info=exc_info, + ), + ) + except Exception: + log.warning("on error, temporary cache dir kept at %s", inductor_cache_dir) + raise + finally: + clear_caches() + + +# Deprecated functions -- only keeping them for BC reasons +clear_on_fresh_inductor_cache = clear_on_fresh_cache +clear_inductor_caches = clear_caches +fresh_inductor_cache = fresh_cache + + +def argsort(seq: Sequence[Any], *, reverse: bool = False) -> list[int]: + getter = seq.__getitem__ + a_r = range(len(seq)) + # preserve original order for equal strides + # e.g. if strides are [32, 8, 8, 1] + # argsort -> [3, 2, 1, 0], rather than + # [3, 1, 2, 0] + # i.e. for equal strides in ascending order (reverse=False) an + # inner dimension should come before an outer dimension, and vice versa + # for descending + sort_idx = list(sorted(a_r, key=getter, reverse=True)) # noqa: C413 + if not reverse: + return list(reversed(sort_idx)) + return sort_idx + + +def argsort_sym( + shape_env: ShapeEnv, + seq: Sequence[Union[int, torch.SymInt, sympy.Expr]], + *, + reverse: bool = False, +) -> list[int]: + def cmp(a: tuple[int, sympy.Expr], b: tuple[int, sympy.Expr]) -> int: + a_idx, a_val = a + b_idx, b_val = b + + def evaluate(expr: Union[bool, torch.SymInt, sympy.Expr]) -> bool: + if isinstance(expr, bool): + return expr + return shape_env.evaluate_expr(expr, size_oblivious=True) + + if evaluate(a_val < b_val): + return -1 + if evaluate(a_val > b_val): + return 1 + # If strides are the same, prefer the original order. + # (this matches argsort's algorithm). + # For strides = [2048, 2048, 16, 1], this is + # [3, 2, 1, 0]. + if a_idx < b_idx: + return 1 + if a_idx > b_idx: + return -1 + return 0 + + # Strategy: convert all symints to sympy.Expr, then use a custom comparator + exprs = [ + (idx, s.node.expr if isinstance(s, torch.SymInt) else s) + for idx, s in enumerate(seq) + ] + exprs = sorted(exprs, key=functools.cmp_to_key(cmp), reverse=reverse) + result = [idx for idx, _ in exprs] + return result + + +@functools.lru_cache(8) +def get_dtype_size(dtype: torch.dtype) -> int: + # TODO: Investigate why uint64 tensor creation causes overflow error: + # Workaround for RuntimeError in memory size calculation, but underlying cause unclear + if dtype == torch.uint64: + return 8 + return torch.empty((), dtype=dtype).element_size() + + +class LineContext(NamedTuple): + context: Any + + +@dataclasses.dataclass +class ValueWithLineMap: + value: str + line_map: list[tuple[int, LineContext]] + + +class IndentedBuffer: + tabwidth = 4 + + def __init__(self, initial_indent: int = 0) -> None: + self._lines: list[Union[DeferredLineBase, LineContext, str]] = [] + self._indent = initial_indent + + @contextlib.contextmanager + def set_tabwidth(self, tabwidth: int) -> Iterator[None]: + prev = self.tabwidth + try: + self.tabwidth = tabwidth + yield + finally: + self.tabwidth = prev + + def getvaluewithlinemap(self) -> ValueWithLineMap: + buf = StringIO() + p = 1 + linemap: list[tuple[int, LineContext]] = [] + for li in self._lines: + if isinstance(li, DeferredLineBase): + line = li() + if line is None: + continue + elif isinstance(li, LineContext): + linemap.append((p, li.context)) + continue + else: + line = li + assert isinstance(line, str) + buf.write(line) + buf.write("\n") + p += 1 + line.count("\n") + return ValueWithLineMap(buf.getvalue(), linemap) + + def getvalue(self) -> str: + return self.getvaluewithlinemap().value + + def getrawvalue(self) -> str: + buf = StringIO() + for li in self._lines: + if isinstance(li, DeferredLineBase): + line = li() + if line is None: + continue + elif isinstance(li, LineContext): + continue + else: + line = li + assert isinstance(line, str) + # backslash implies line continuation + if line.endswith("\\"): + buf.write(line[:-1]) + else: + buf.write(line) + buf.write("\n") + return buf.getvalue() + + def clear(self) -> None: + self._lines.clear() + + def __bool__(self) -> bool: + return bool(self._lines) + + def prefix(self) -> str: + return " " * (self._indent * self.tabwidth) + + def newline(self) -> None: + self.writeline("\n") + + def writeline(self, line: Union[LineContext, DeferredLineBase, str]) -> None: + if isinstance(line, LineContext): + self._lines.append(line) + elif isinstance(line, DeferredLineBase): + self._lines.append(line.with_prefix(self.prefix())) + elif line.strip(): + self._lines.append(f"{self.prefix()}{line}") + else: + self._lines.append("") + + def writelines( + self, lines: Sequence[Union[LineContext, DeferredLineBase, str]] + ) -> None: + for line in lines: + self.writeline(line) + + def indent(self, offset: int = 1) -> contextlib.AbstractContextManager[None]: + @contextlib.contextmanager + def ctx() -> Iterator[None]: + self._indent += offset + try: + yield + finally: + self._indent -= offset + + return ctx() + + def do_indent(self, offset: int = 1) -> None: + self._indent += offset + + def do_unindent(self, offset: int = 1) -> None: + self._indent -= offset + + def splice( + self, other_code: Union[IndentedBuffer, str], strip: bool = False + ) -> None: + if isinstance(other_code, IndentedBuffer): + dedent = float("inf") + # pyrefly: ignore [bad-assignment] + for line in other_code._lines: + if not isinstance(line, LineContext) and line: + dedent = min(dedent, len(line) - len(line.lstrip())) + if math.isinf(dedent): + dedent = 0 + for line in other_code._lines: + if isinstance(line, LineContext): + self._lines.append(line) + else: + IndentedBuffer.writeline(self, line[int(dedent) :]) + else: + other_code = textwrap.dedent(other_code) + if strip: + other_code = other_code.lstrip() + if not other_code: + return + other_code = other_code.rstrip() + for s in other_code.split("\n"): + self.writeline(s) + + def map(self, func: Callable[[Any], Any]) -> IndentedBuffer: + res = IndentedBuffer(initial_indent=self._indent) + res._lines = [func(line) for line in self._lines] + return res + + def __repr__(self) -> str: + return f"{type(self)}({self.getvalue()})" + + def __add__(self, other: Self) -> IndentedBuffer: + assert self._indent == other._indent + res = IndentedBuffer(initial_indent=self._indent) + # TODO(rec): or should this be self.__class__(initial_indent=self._indent)? + res.writelines(self._lines) + res.writelines(other._lines) + return res + + def contains(self, new_line: Union[DeferredLineBase, LineContext, str]) -> bool: + return new_line in self._lines + + +class FakeIndentedBuffer(IndentedBuffer): + def __init__(self) -> None: + super().__init__() + + def __getattribute__(self, name: str) -> Any: + if name == "__class__": # Allow access to the class attribute + return object.__getattribute__(self, name) + raise RuntimeError( + f"Tried to call self.{name} on FakeIndentedBuffer. This buffer" + "is currently used on TritonTemplateKernel to prevent actual" + "writes to the body without explicitly specifying the body with" + "`TritonTemplateKernel.set_subgraph_body(name)`" + ) + + +@contextlib.contextmanager +def restore_stdout_stderr() -> Iterator[None]: + initial_stdout, initial_stderr = sys.stdout, sys.stderr + try: + yield + finally: + sys.stdout, sys.stderr = initial_stdout, initial_stderr + + +class DeferredLineBase: + """A line that can be 'unwritten' at a later time""" + + def __init__(self, line: str): + if not line.strip(): + line = "" + self.line = line + + def __call__(self) -> Union[str, None]: + """Returns either self.line or None to indicate the line has been 'unwritten'""" + raise NotImplementedError + + def _new_line(self, line: str) -> Self: + """Returns a new deferred line with the same condition""" + raise NotImplementedError + + def with_prefix(self, prefix: str) -> Self: + return self._new_line(f"{prefix}{self.line}") + + def lstrip(self) -> Self: + return self._new_line(self.line.lstrip()) + + def __getitem__(self, index: Union[int, slice]) -> Self: + return self._new_line(self.line[index]) + + def __bool__(self) -> bool: + return bool(self.line) + + def __len__(self) -> int: + return len(self.line) + + +class DelayReplaceLine(DeferredLineBase): + """At end of codegen call `line.replace(key, value_fn())`""" + + def __init__(self, key: str, value_fn: Callable[[], str], line: str): + super().__init__(line) + self.key = key + self.value_fn = value_fn + + def __call__(self) -> str: + return self.line.replace(self.key, self.value_fn()) + + def _new_line(self, line: str) -> DelayReplaceLine: + return DelayReplaceLine(self.key, self.value_fn, line) + + +class DelayMaybeLine(DeferredLineBase): + """At end of codegen return `line if `pred_fn() else None`""" + + def __init__(self, pred_fn: Callable[[], bool], line: str): + super().__init__(line) + self.pred_fn = pred_fn + + def __call__(self) -> str | None: + return self.line if self.pred_fn() else None + + def _new_line(self, line: str) -> DelayMaybeLine: + return DelayMaybeLine(self.pred_fn, line) + + +@functools.cache +def is_big_gpu(index_or_device: Union[int, torch.device] = 0) -> bool: + if isinstance(index_or_device, torch.device): + device = index_or_device + else: + device = torch.device(get_gpu_type(), index_or_device) + + prop = DeviceProperties.create(device) + + # SM logic is not relevant to ROCm gpus + # Arbitrarily skipping the older models + if torch.version.hip: + assert prop.major is not None + if prop.major < 9 or prop.major == 10: + log.warning("GPU arch does not support max_autotune_gemm mode usage") + return False + return True + + min_sms = 16 if device.type == "xpu" else 68 # 3080 + avail_sms = prop.multi_processor_count + if avail_sms < min_sms: + log.warning( + "Not enough SMs to use max_autotune_gemm mode", + extra={"min_sms": min_sms, "avail_sms": avail_sms}, + ) + return False + return True + + +@functools.lru_cache +def get_max_num_sms() -> int: + if torch.xpu.is_available(): + return torch.xpu.get_device_properties().gpu_subslice_count + return torch.cuda.get_device_properties("cuda").multi_processor_count + + +@functools.lru_cache +def using_b200() -> bool: + """Returns true if the device is a NVIDIA B200, otherwise returns false.""" + if not torch.cuda.is_available(): + return False + # compute capability 10.0 or 10.0a is NVIDIA B200 + device_properties = torch.cuda.get_device_properties(torch.cuda.current_device()) + return device_properties.major == 10 + + +def get_num_sms() -> int: + """Handle experimental carveout if set otherwise return hardware SM count""" + # TODO we need to properly guard on this global + if torch.xpu.is_available(): + return get_max_num_sms() + carveout = torch._C._get_sm_carveout_experimental() + return get_max_num_sms() - (carveout if carveout is not None else 0) + + +def get_tma_workspace_arg( + num_tma_descriptors: int, + device: torch.device, + num_programs: Optional[int] = None, +) -> WorkspaceArg: + """Builds and returns a WorkspaceArg for the device side TMA workspace buffer.""" + from .codegen.common import WorkspaceArg, WorkspaceZeroMode + + if num_programs is None: + num_programs = get_num_sms() + zero_mode = WorkspaceZeroMode.from_bool(False) + size = num_programs * num_tma_descriptors * TMA_DESCRIPTOR_SIZE + return WorkspaceArg( + count=size, + zero_mode=zero_mode, + device=device, + outer_name=WorkspaceArg.unique_name(), + ) + + +def _use_template_for_gpu( + layout: Layout, allowed_layout_dtypes: list[torch.dtype] +) -> bool: + if layout.dtype not in allowed_layout_dtypes: + log.debug( + "Not using template since dtype %s is not in allowed layout dtypes %s", + layout.dtype, + allowed_layout_dtypes, + ) + return ( + is_gpu(layout.device.type) + and layout.dtype in allowed_layout_dtypes + and is_big_gpu(layout.device) + ) + + +def _use_autotune_backend(backend: str) -> bool: + return backend.upper() in [ + x.strip() for x in config.max_autotune_gemm_backends.upper().split(",") + ] + + +def _use_conv_autotune_backend(backend: str) -> bool: + return backend.upper() in [ + x.strip() for x in config.max_autotune_conv_backends.upper().split(",") + ] + + +def use_triton_template( + layout: Layout, + *, + enable_int32: bool = False, + enable_float8: bool = False, + check_max_autotune: bool = True, +) -> bool: + from .codegen.common import BackendFeature, has_backend_feature + + layout_dtypes = [torch.float16, torch.bfloat16, torch.float32] + if enable_int32: + layout_dtypes = [torch.float16, torch.bfloat16, torch.float32, torch.int32] + if enable_float8: + layout_dtypes.extend([torch.float8_e4m3fn, torch.float8_e5m2]) + return ( + ( + ( + is_gpu(layout.device.type) + and _use_template_for_gpu(layout, layout_dtypes) + ) + or (layout.device.type == "cpu" and layout.dtype in layout_dtypes) + ) + # some callers handle max-autotune checking externally + and (config.max_autotune or config.max_autotune_gemm or not check_max_autotune) + and _use_autotune_backend("TRITON") + and has_backend_feature(layout.device, BackendFeature.TRITON_TEMPLATES) + ) + + +def can_use_tma( + *matrices: IRNode, output_layout: Optional[Layout] = None, add_guards: bool = False +) -> bool: + """ + Return True iff *all* supplied tensors satisfy the CUDA-12.9 TMA constraints + that Triton relies on today. + * https://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__TENSOR__MEMORY.html + + A tensor is accepted when: + * 2 ≤ rank ≤ 5 + * dtype ∈ {FP16, BF16, FP8-E4M3FN} + * Every logical size ≥ 2 + * Base pointer 16-byte aligned + * All "outer" dims have 16-byte aligned strides + * The “inner” dim has stride 1 (contiguous) + * For FP8 tensors, inner dim ≥ 32 + """ + from torch.utils._triton import has_triton_tma_device + + from .virtualized import V + + def _aligned(expr_bytes: Union[int, sympy.Expr]) -> bool: + return V.graph.sizevars.statically_known_multiple_of(expr_bytes, TMA_ALIGNMENT) + + def _is_tma_compatible_layout(layout: Optional[Layout]) -> bool: + if layout is None: + return True + sizes = layout.size + strides = layout.stride + dtype = layout.dtype + + # Verify the output is 16-byte aligned + if not _aligned(layout.offset): + return False + + return _is_tma_compatible(sizes, strides, dtype, allow_float32=True) + + def _is_tma_compatible_matrix(m: IRNode) -> bool: + sizes = m.get_size() + strides = m.get_stride() + dtype = m.get_dtype() + + # Base pointer 16-byte aligned + if m.get_name() in V.graph.unaligned_buffers: + return False + + return _is_tma_compatible(sizes, strides, dtype, allow_float32=False) + + def _is_tma_compatible( + sizes: Sequence[sympy.Expr], + strides: Sequence[_IntLike], + dtype: torch.dtype, + allow_float32: bool, + ) -> bool: + rank = len(sizes) + itemsize = dtype.itemsize + + # 2 ≤ rank ≤ 5 + if rank < 2 or rank > 5: + return False + + # dtype ∈ {FP16, BF16, FP8-E4M3FN} + if dtype not in (torch.float16, torch.bfloat16, torch.float8_e4m3fn) and ( + not allow_float32 or dtype != torch.float32 + ): + return False + + if add_guards: + sizes_i = V.graph.sizevars.guard_int_seq(sizes) + strides_i = V.graph.sizevars.guard_int_seq(strides) + else: + sizes_i = [V.graph.sizevars.symbolic_hint(s) for s in sizes] + strides_i = [V.graph.sizevars.symbolic_hint(st) for st in strides] + + # Every logical size ≥ 2 + if any(not V.graph.sizevars.statically_known_geq(s, 2) for s in sizes_i): + return False + + # Find the single contiguous (“inner”) dim + inner = [ + i + for i, st in enumerate(strides_i) + if V.graph.sizevars.statically_known_equals(st, 1) + ] + if len(inner) != 1: + return False + inner_idx = inner[0] + + # All "outer" dims must have 16-byte aligned strides + for i, st in enumerate(strides_i): + if i == inner_idx: + continue + if not _aligned(st * itemsize): + return False + + # Inner dim byte width must still be a multiple of 16 B + inner_dim = sizes_i[inner_idx] + if not _aligned(inner_dim * itemsize): + return False + + # FP8 special case: inner ≥ 32 + if dtype == torch.float8_e4m3fn and not V.graph.sizevars.statically_known_geq( + inner_dim, 32 + ): + return False + + return True + + return ( + has_triton_tma_device() + and all(_is_tma_compatible_matrix(m) for m in matrices) + and _is_tma_compatible_layout(output_layout) + ) + + +def use_triton_tma_template( + *matrices: IRNode, output_layout: Layout, add_guards: bool = False +) -> bool: + layout = output_layout if config.triton.enable_template_tma_store else None + return ( + all(len(m.get_size()) == 2 for m in matrices) + and can_use_tma(*matrices, output_layout=layout, add_guards=add_guards) + and config.triton.enable_persistent_tma_matmul + ) + + +def use_triton_blackwell_tma_template( + *matrices: IRNode, output_layout: Layout, add_guards: bool = False +) -> bool: + if not use_triton_tma_template( + *matrices, output_layout=output_layout, add_guards=add_guards + ): + return False + + from torch.utils._triton import has_triton_tensor_descriptor_host_tma + + from .codegen.cuda.cuda_env import is_datacenter_blackwell_arch + + # Blackwell template require the tensor descriptor API, not the experimental API. + return has_triton_tensor_descriptor_host_tma() and is_datacenter_blackwell_arch() + + +@functools.lru_cache(maxsize=1) +def ensure_cute_available() -> bool: + """Check if CuTeDSL is importable; cache the result for reuse. + + Call ensure_cute_available.cache_clear() after installing CuTeDSL + in the same interpreter to retry the import. + """ + try: + return importlib.util.find_spec("cutlass.cute") is not None + except ImportError: + return False + + +def use_blackwell_cutedsl_grouped_mm( + mat_a: Any, + mat_b: Any, + layout: Layout, + a_is_2d: bool, + b_is_2d: bool, + offs: Optional[Any], + bias: Optional[Any], + scale_result: Optional[Any], +) -> bool: + """ + Returns True if we can use the blackwell kernel for grouped mm. + Required conditions: + 1. CuTeDSL backend is enabled + 2. CuTeDSL is available + 3. We are on a blackwell arch + 4. The dtype is bf16 + 5. Max autotune or max autotune gemm is enabled + 6. A, B, and the output are 16B aligned + 7. We are not using dynamic shapes + 8. A is 2d + 9. B is 3d + 10. Offsets are provided + 11. Bias and Scale are not provided + """ + if not ensure_cute_available(): + return False + + if not _use_autotune_backend("CUTEDSL"): + return False + + from .codegen.cuda.cuda_env import is_datacenter_blackwell_arch + + if not is_gpu(layout.device.type): + return False + + if not is_datacenter_blackwell_arch(): + return False + + layout_dtypes = [torch.bfloat16] + if not _use_template_for_gpu(layout, layout_dtypes): + return False + + if not (config.max_autotune or config.max_autotune_gemm): + return False + + # Checks for 16B ptr and stride alignment + if not can_use_tma(mat_a, mat_b, output_layout=layout): + return False + + if any(is_dynamic(x) for x in [mat_a, mat_b]): + return False + + if not a_is_2d or b_is_2d: + return False + + if offs is None: + return False + + if bias is not None or scale_result is not None: + return False + + return True + + +def use_cutlass_template(layout: Layout, m: int, n: int, k: int) -> bool: + from .virtualized import V + + gemm_size = V.graph.sizevars.size_hint(m * n * k, fallback=-1) + if gemm_size <= 0 or gemm_size < config.cuda.cutlass_backend_min_gemm_size: + return False + from .codegen.cuda.cutlass_utils import try_import_cutlass + + # Do not use cutlass template on ROCm + if torch.version.hip: + return False + + # output dtype + # FP32 not supported: https://github.com/pytorch/pytorch/issues/145952 + layout_dtypes = [torch.float16, torch.bfloat16, torch.int32] + res = ( + _use_template_for_gpu(layout, layout_dtypes) + and (config.max_autotune or config.max_autotune_gemm) + and _use_autotune_backend("CUTLASS") + ) + + if res: + if not try_import_cutlass(): + log.warning( + "Failed to import CUTLASS lib. Please check whether " + "_inductor.config.cuda.cutlass_dir %s is set correctly. " + "Skipping CUTLASS backend for now.", + config.cuda.cutlass_dir, + ) + return False + return res + + +def _use_cutlass_for_op(op_name: str) -> bool: + """Check if CUTLASS should be used for the given operation.""" + enabled_ops = config.cuda.cutlass_enabled_ops.upper() + if enabled_ops == "ALL": + return True + return op_name.upper() in [x.strip() for x in enabled_ops.split(",")] + + +_IntLike: TypeAlias = Union[int, sympy.Expr] + + +@functools.cache +def use_decompose_k_choice( + m: _IntLike, n: _IntLike, k: _IntLike, threshold_multiple: int = 1 +) -> bool: + from torch._inductor.virtualized import V + + decompose_k_threshold = config.triton.decompose_k_threshold * threshold_multiple + + return ( + not torch.version.hip + and V.graph.sizevars.statically_known_true( + sympy.And( + sympy.Ge(k, decompose_k_threshold * m), + sympy.Ge(k, decompose_k_threshold * n), + ) + ) + and not V.graph.aot_mode # TODO: Support AOTI for decomposeK + and not V.graph.cpp_wrapper + and config.triton.num_decompose_k_splits > 0 + ) + + +@functools.cache +def use_contiguous(m: _IntLike, n: _IntLike, k: _IntLike) -> bool: + """ + Check if we should use the contiguous subgraph transform. + This transform makes the second matrix contiguous before the matmul. + """ + contiguous_threshold = config.rocm.contiguous_threshold + + # Similar conditions to decompose_k but for contiguous transform + from torch._inductor.virtualized import V + + return ( + bool(torch.version.hip) # Only relevant on AMD + and V.graph.sizevars.statically_known_true( + sympy.And( + sympy.Ge(k, contiguous_threshold * m), + sympy.Ge(k, contiguous_threshold * n), + ) + ) + and not V.graph.aot_mode + and not V.graph.cpp_wrapper + ) + + +@functools.cache +def get_k_splits(m: _IntLike, n: _IntLike, k: _IntLike) -> list[int]: + # To limit compile time + k_splits_limit = config.triton.num_decompose_k_splits + + # Hand-tuned + default_k_splits = [16, 32, 64, 128, 256] + # If k is a sympy expression, we can't do any splitting + if isinstance(k, sympy.Expr) and not k.is_number: + return default_k_splits + elif k_splits_limit == 0: + return [] + + if (isinstance(m, sympy.Expr) and not m.is_number) or ( + isinstance(n, sympy.Expr) and not n.is_number + ): + max_k_split = 256 + else: + max_k_split = min(k // m, k // n) + + min_k_split = 2 + # Get all divisors of k, k has to be divisible by kPart + divisors = sympy.divisors(k) + + divisors = [ + divisor + for divisor in divisors + if divisor <= max_k_split and divisor >= min_k_split + ] + + pow_of_2_divisors, mul_of_32_divisors, rest_of_splits = [], [], [] + + for d in divisors: + kPart = k // d + + # Smaller than 128 might not even fit in a single tile, BLOCK_K can be 128 + if kPart < 128: + continue + + # Power of 2 divisors are best performing, conform to hardware + if (kPart & kPart - 1) == 0 and kPart >= 128: + pow_of_2_divisors.append(d) + # Else check if creates a multiple of 32 + elif kPart % 32 == 0: + mul_of_32_divisors.append(d) + # otherwise, take the smallest values + else: + rest_of_splits.append(d) + + if config.max_autotune_gemm_search_space == "EXHAUSTIVE": + return pow_of_2_divisors + mul_of_32_divisors + rest_of_splits + + best_splits = pow_of_2_divisors + mul_of_32_divisors + rest_of_splits + # Otherwise, conform results to k_splits_limit + return best_splits[:k_splits_limit] + + +@functools.cache +def _rocm_native_device_arch_name(device: str) -> str: + return torch.cuda.get_device_properties(device).gcnArchName + + +@functools.cache +def try_import_ck_lib() -> tuple[ + Optional[str], Callable[[], list[Any]], Callable[[], list[Any]], type[Any] +]: + try: + import ck4inductor # type: ignore[import] + from ck4inductor.universal_gemm.gen_instances import ( # type: ignore[import] + gen_ops_library, + gen_ops_preselected, + ) + from ck4inductor.universal_gemm.op import ( # type: ignore[import] + CKGemmOperation, + ) + + package_dirname = os.path.dirname(ck4inductor.__file__) + except ImportError: + + def gen_ops_library() -> list[Any]: + return [] + + def gen_ops_preselected() -> list[Any]: + return [] + + class CKGemmOperation: # type: ignore[no-redef] + pass + + package_dirname = None + return package_dirname, gen_ops_library, gen_ops_preselected, CKGemmOperation + + +def use_ck_template(layout: Layout) -> bool: + # config knobs check 1 + if not (config.max_autotune or config.max_autotune_gemm): + return False + # platform check + if not torch.version.hip: + return False + # tensors must be on GPU + if layout.device.type != "cuda": + return False + # hardware check + # if config arch list is not specified, get the native arch from the device properties + native_arch = _rocm_native_device_arch_name(layout.device) + requested_archs = {k.split(":")[0]: k for k in config.rocm.arch} or { + native_arch.split(":")[0]: native_arch + } + requested_supported_archs = [ + requested_archs[k] + for k in requested_archs.keys() & config.rocm.ck_supported_arch + ] + if not requested_supported_archs: + return False + # supported input dtypes + if layout.dtype not in [torch.float16, torch.bfloat16, torch.float32]: + return False + + ck_package_dirname, _, _, _ = try_import_ck_lib() + + if not ck_package_dirname: + log.warning("Please pip install Composable Kernel package") + return False + + config.rocm.ck_dir = ck_package_dirname + + return True + + +def use_ck_gemm_template(layout: Layout, m: int, n: int, k: int) -> bool: + from .virtualized import V + + return ( + _use_autotune_backend("CK") + and use_ck_template(layout) + and V.graph.sizevars.size_hint(m * n * k, fallback=-1) > 0 + ) + + +def use_ck_tile_gemm_template(layout: Layout, m: int, n: int, k: int) -> bool: + from .virtualized import V + + return ( + _use_autotune_backend("CKTILE") + and use_ck_template(layout) + and V.graph.sizevars.size_hint(m * n * k, fallback=-1) > 0 + ) + + +def use_ck_conv_template(layout: Layout) -> bool: + return _use_conv_autotune_backend("CK") and use_ck_template(layout) + + +def _use_template_for_cpu(layout: Layout) -> bool: + return ( + config.max_autotune or config.max_autotune_gemm + ) and layout.device.type == "cpu" + + +def use_cpp_bmm_template( + layout: Layout, mat1: Union[ReinterpretView, Buffer], mat2: IRNode +) -> bool: + from .ir import Layout + + assert isinstance(mat1.layout, Layout) + + # In certain scenarios, such as when the first stride is 0, the entire tensor may not be contiguous. + # But the 2D matrix within each batch can still be contiguous, allowing us to apply max autotune. + # So here we specifically check for contiguity within the 2D matrix of each batch. + mat1_size = mat1.layout.size + mat1_stride = mat1.layout.stride + mat1_each_batch_is_contiguous = ( + _use_template_for_cpu(layout) + and mat1.get_dtype() == torch.float32 + and (len(mat1_size) == 3) + and (len(mat1_stride) == 3) + and (mat1_stride[1] == mat1_size[2]) + and (mat1_stride[2] == 1) + ) + return use_cpp_gemm_template(layout, mat1, mat2, require_constant_mat2=False) and ( + mat1.layout.is_contiguous() or mat1_each_batch_is_contiguous + ) + + +def use_cpp_gemm_template( + layout: Layout, + mat1: IRNode, + mat2: IRNode, + mat2_transposed: bool = False, + require_constant_mat2: bool = True, + is_woq_int4: bool = False, + q_group_size: Optional[int] = None, +) -> bool: + from . import ir + from .codegen.cpp_micro_gemm import create_micro_gemm + from .codegen.cpp_utils import get_gemm_template_output_and_compute_dtype + from .kernel.mm_common import mm_args + + if not _use_template_for_cpu(layout) or not _use_autotune_backend("CPP"): + return False + + if not config.cpp.weight_prepack: + return False + + int8_gemm = mat1.get_dtype() in [torch.uint8, torch.int8] + layout_dtypes = [torch.float32, torch.bfloat16, torch.half, torch.uint8] + m, n, k, layout, mat1, mat2 = mm_args( + mat1, + mat2, + out_dtype=layout.dtype if int8_gemm else None, + mat2_transposed=mat2_transposed, + use_4x2_dim=is_woq_int4, + ) + + # TODO(jgong5): support dynamic shapes for n or k + if has_free_symbols((n, k)): + return False + + if isinstance(mat2, ir.BaseView): + mat2 = mat2.unwrap_view() + + output_dtype, _ = get_gemm_template_output_and_compute_dtype(mat1.get_dtype()) + micro_gemm = create_micro_gemm( + "micro_gemm", + m, + n, + k, + input_dtype=mat1.get_dtype(), + input2_dtype=mat2.get_dtype(), + output_dtype=output_dtype, + num_threads=parallel_num_threads(), + use_ref=not is_woq_int4, + q_group_size=q_group_size, + ) + + def is_last_dim_stride1(x: IRNode) -> bool: + x.freeze_layout() + return x.get_stride()[-1] == 1 + + return ( + layout.dtype in layout_dtypes + and micro_gemm is not None + and is_last_dim_stride1(mat1) # TODO(jgong5): support transposed input + and isinstance(mat2, ir.StorageBox) + and (mat2.is_module_buffer() or not require_constant_mat2) + ) + + +def use_aten_gemm_kernels() -> bool: + return not ( + config.max_autotune or config.max_autotune_gemm + ) or _use_autotune_backend("ATEN") + + +class DebugDirManager: + counter = itertools.count(0) + prev_debug_name: str + + def __init__(self) -> None: + self.id = next(DebugDirManager.counter) + + def __enter__(self) -> None: + self.prev_debug_name = torch._dynamo.config.debug_dir_root + self.new_name = f"{self.prev_debug_name}_tmp_{self.id}" + torch._dynamo.config.debug_dir_root = self.new_name + + def __exit__(self, *args: Any) -> None: + shutil.rmtree(self.new_name) + torch._dynamo.config.debug_dir_root = self.prev_debug_name + + +def run_and_get_code( + fn: Callable[P, _T], + *args: P.args, + **kwargs: P.kwargs, +) -> tuple[_T, list[str]]: + from .graph import GraphLowering + + source_codes: OrderedSet[str] = OrderedSet() + + def save_output_code(code: str) -> None: + source_codes.add(code) + + with mock.patch.object(GraphLowering, "save_output_code", save_output_code): + torch._dynamo.reset() + result = fn(*args, **kwargs) + return result, list(source_codes) + + +def run_and_get_kernels( + fn: Callable[P, _T], *args: P.args, **kwargs: P.kwargs +) -> tuple[_T, list[str]]: + # pyrefly: ignore [bad-argument-type] + result, source_codes = run_and_get_code(fn, *args, **kwargs) + kernels = [] + for code in source_codes: + kernels.extend(re.findall(r"'''.*?'''", code, re.DOTALL)) + return result, kernels + + +def run_fw_bw_and_get_code(fn: Callable[..., Any]) -> tuple[Any, list[str]]: + def run_with_backward() -> Any: + result = fn() + result.sum().backward() + return result + + return run_and_get_code(run_with_backward) + + +def get_code(fn: Callable[P, _T], *args: P.args, **kwargs: P.kwargs) -> list[str]: + """Get the inductor-generated code, but skip any actual compilation or running.""" + from .graph import GraphLowering + + source_codes: list[str] = [] + + def save_output_code(code: str) -> None: + source_codes.append(code) + + def patched_compile_to_module(self: GraphLowering) -> Any: + class DummyModule: + """This is empty to replace the generated triton module""" + + def __init__(self) -> None: + pass + + def call(self, *args: Any, **kwargs: Any) -> None: + # Don't do anything when called + pass + + wrapper_code, kernel_code = ( + self.codegen_with_cpp_wrapper() if self.cpp_wrapper else self.codegen() + ) + # Skip all the actual compiling. + save_output_code(wrapper_code.value) + if kernel_code: + save_output_code(kernel_code.value) + + return DummyModule() + + with ( + mock.patch.object( + GraphLowering, "compile_to_module", patched_compile_to_module + ), + mock.patch.object(GraphLowering, "save_output_code", save_output_code), + ): + torch._dynamo.reset() + # Note the return here is None + _ = fn(*args, **kwargs) + + return source_codes + + +def get_triton_code(fn: Callable[P, _T], *args: P.args, **kwargs: P.kwargs) -> str: + # pyrefly: ignore [bad-argument-type] + source_codes = get_code(fn, *args, **kwargs) + # Can have two outputs if backwards was eagerly compiled + assert 1 <= len(source_codes) <= 2, ( + f"expected one or two code outputs got {len(source_codes)}" + ) + return source_codes[0] + + +def run_and_get_triton_code( + fn: Callable[P, _T], *args: P.args, **kwargs: P.kwargs +) -> str: + # pyrefly: ignore [bad-argument-type] + _, source_codes = run_and_get_code(fn, *args, **kwargs) + # Can have two outputs if backwards was eagerly compiled + assert 1 <= len(source_codes) <= 2, ( + f"expected one or two code outputs got {len(source_codes)}" + ) + return source_codes[0] + + +def run_and_get_graph_lowering( + fn: Callable[P, _T], *args: P.args, **kwargs: P.kwargs +) -> tuple[Any, list[GraphLowering]]: + from torch._inductor.graph import GraphLowering + from torch._inductor.output_code import CompiledFxGraph + + real_init = CompiledFxGraph.__init__ + graph_lowerings = [] + + def fake_init(*args: Any, **kwargs: Any) -> None: + real_init(*args, **kwargs) + graph = args[2] + assert isinstance(graph, GraphLowering) + graph_lowerings.append(graph) + + with mock.patch.object(CompiledFxGraph, "__init__", fake_init): + result = fn(*args, **kwargs) + + return result, graph_lowerings + + +@contextlib.contextmanager +def override_lowering( + aten_op: Callable[..., Any], override_fn: Callable[..., Any] +) -> Iterator[None]: + """ + Override the lowering of aten_op with override_fn. + The first argument of override_fn is the original lowering fn. + """ + from torch._inductor import lowering + + orig_fn = lowering.lowerings[aten_op] + try: + lowering.lowerings[aten_op] = functools.partial(override_fn, orig_fn) + yield + finally: + lowering.lowerings[aten_op] = orig_fn + + +def add_scheduler_init_hook( + pre_fn: Callable[..., Any], post_fn: Optional[Callable[..., Any]] = None +) -> Any: + """ + Add hook functions to be called at the beginning and end of Scheduler.__init__. + Used for unit tests. + """ + from torch._inductor.scheduler import Scheduler + + orig_fn = Scheduler.__init__ + + def wrapper(scheduler: Any, nodes: Any) -> Any: + pre_fn(scheduler, nodes) + out = orig_fn(scheduler, nodes) + if post_fn: + post_fn(scheduler, nodes) + return out + + return unittest.mock.patch.object(Scheduler, "__init__", wrapper) + + +def developer_warning(msg: str) -> None: + """ + Warnings that will be actionable for PyTorch developers, but not + end users. Allows us to easily disable them in stable releases but + keep them on for nightly builds. + """ + if config.developer_warnings: + log.warning(msg) + else: + log.info(msg) + + +def get_benchmark_name() -> Optional[str]: + """ + An experimental API used only when config.benchmark_kernel is true. + + The benchmark name is only available at codegen time. So we can not + directly call it in benchmark_all_kernels which is run after codegen. + + The function assumes the argument after --only is the benchmark name. + It works for torchbench.py/hugginface.py/timm_models.py. But for ad-hoc + scripts, this function may return None. + + There are 2 flavors of --only argument we need handle: + 1. --only model_name + 2. --only=model_name + """ + try: + idx = sys.argv.index("--only") + if ( + idx + 1 < len(sys.argv) + and len(sys.argv[idx + 1]) > 0 + and sys.argv[idx + 1][0] != "-" + ): + return sys.argv[idx + 1] + except ValueError: + pass + + for arg in sys.argv: + if arg.startswith("--only="): + return arg[len("--only=") :] + + return None + + +def is_ones(items: Sequence[Any]) -> bool: + return all(x == 1 for x in items) + + +def is_zeros(items: Sequence[Any]) -> bool: + return all(x == 0 for x in items) + + +def is_cpu_device(inputs: Sequence[torch.Tensor]) -> bool: + return all( + item.device == torch.device("cpu") + for item in inputs + if isinstance(item, torch.Tensor) + ) + + +def get_sympy_Expr_dtype(val: sympy.Expr) -> torch.dtype: + assert isinstance(val, sympy.Expr), ( + "only support sympy.Expr as input to get_sympy_Expr_dtype" + ) + if val.is_integer: # type: ignore[attr-defined] + return torch.int64 + else: + return torch.float64 + + +@contextlib.contextmanager +def maybe_profile(should_profile: bool, *args: Any, **kwargs: Any) -> Iterator[Any]: + if should_profile: + with torch.profiler.profile(*args, **kwargs) as p: + yield p + else: + yield + + +def parallel_num_threads() -> int: + threads = config.cpp.threads + if threads < 1: + threads = torch.get_num_threads() + return threads + + +@functools.cache +def get_backend_num_stages() -> int: + from .runtime.triton_helpers import get_backend_options + + options = get_backend_options() + return options.get("num_stages", 2 if torch.version.hip else 3) + + +@functools.cache +def get_device_tflops(dtype: torch.dtype) -> float: + """ + We don't want to throw errors in this function. First check to see if the device is in device_info.py, + then fall back to the inaccurate triton estimation. + """ + ds_tops = datasheet_tops(dtype, is_tf32=torch.backends.cuda.matmul.allow_tf32) + if ds_tops is not None: + return ds_tops + + from triton.testing import get_max_simd_tflops, get_max_tensorcore_tflops + + SM80OrLater = torch.cuda.is_available() and torch.cuda.get_device_capability() >= ( + 8, + 0, + ) + + assert dtype in (torch.float16, torch.bfloat16, torch.float32) + + if inspect.signature(get_max_simd_tflops).parameters.get("clock_rate"): + # Triton API change in https://github.com/triton-lang/triton/pull/2293 + from torch._utils_internal import max_clock_rate + + sm_clock = max_clock_rate() + if dtype in (torch.float16, torch.bfloat16) and SM80OrLater: + return get_max_tensorcore_tflops(dtype, sm_clock) + + if torch.backends.cuda.matmul.allow_tf32: + return get_max_tensorcore_tflops(torch.float32, sm_clock) + else: + return get_max_simd_tflops(torch.float32, sm_clock) + else: + if dtype in (torch.float16, torch.bfloat16) and SM80OrLater: + # pyrefly: ignore # missing-argument + return get_max_tensorcore_tflops(dtype) + + if torch.backends.cuda.matmul.allow_tf32: + # pyrefly: ignore # missing-argument + return get_max_tensorcore_tflops(torch.float32) + else: + # pyrefly: ignore # missing-argument + return get_max_simd_tflops(torch.float32) + + +@functools.cache +def get_gpu_dram_gbps() -> int: + from triton.testing import get_dram_gbps + + return get_dram_gbps() + + +def get_gpu_shared_memory() -> int: + from triton.runtime import driver + + # pyrefly: ignore # missing-attribute + return driver.active.utils.get_device_properties(0).get("max_shared_mem", 0) + + +def get_max_numwarps() -> int: + if torch.cuda.is_available(): + warp_size = torch.cuda.get_device_properties().warp_size + max_threads_per_block = torch.cuda.get_device_properties().max_threads_per_block + else: + # Defaults + warp_size = 32 + max_threads_per_block = 1024 + return max_threads_per_block // warp_size + + +def is_welford_reduction(reduction_type: str) -> bool: + return reduction_type.startswith("welford") + + +def reduction_num_outputs(reduction_type: str) -> int: + if is_welford_reduction(reduction_type): + return 3 + elif reduction_type == "online_softmax_reduce": + return 2 + else: + return 1 + + +def is_linux() -> bool: + return platform.system() == "Linux" + + +def is_windows() -> bool: + return sys.platform == "win32" + + +def has_free_symbols(itr: Iterable[Any]) -> bool: + return any(isinstance(x, sympy.Expr) and not x.is_number for x in itr) + + +def is_dynamic(*args: Any) -> bool: + from . import ir + + for t in args: + if isinstance( + t, (ir.TensorBox, ir.StorageBox, ir.BaseView, ir.ComputedBuffer, ir.Buffer) + ): + if has_free_symbols(t.maybe_get_size() or ()) or has_free_symbols( + t.maybe_get_stride() or () + ): + return True + elif not isinstance(t, ir.IRNode): + continue + else: + raise TypeError(f"unexpected type for is_dynamic {type(t)}") + + return False + + +# Placeholder strings used in triton codegen. +class Placeholder(enum.Enum): + # The placeholder for the actual name of a triton kernel. + # e.g. for "def triton_" it would be "triton_" + KERNEL_NAME = "KERNEL_NAME" + + # The descriptive name of the triton kernel; when unique_kernel_names = False, this + # placeholder will be replaced with a string with more information. + DESCRIPTIVE_NAME = "DESCRIPTIVE_NAME" + + +def pass_execution_and_save( + func: Callable[..., Any], gm: GraphModule, inp: Sequence[Any], msg: str +) -> None: + from .pattern_matcher import stable_topological_sort + + with tempfile.NamedTemporaryFile( + mode="w", + encoding="utf-8", + ) as f: + before_io = io.StringIO() + after_io = io.StringIO() + ShapeProp(gm=gm, fake_mode=detect_fake_mode(inp)).propagate(*inp) + print(f"Before:\n{gm.graph}", file=f) + print(gm.graph, file=before_io) + start_time = datetime.now() + with GraphTransformObserver(gm, msg): + func(gm.graph) + time_elapsed = datetime.now() - start_time + # recompile graph + stable_topological_sort(gm.graph) + gm.graph.lint() + gm.recompile() + + print(f"After:\n{gm.graph}", file=f) + print(gm.graph, file=after_io) + t = before_io.getvalue() == after_io.getvalue() + log.info( + "%s, save before/after graph to %s, graph before/after are the same = %s, time elapsed = %s", + msg, + f.name, + t, + time_elapsed, + ) + + +def is_multi_outputs_template(input_buf: Optional[Union[Buffer, Operation]]) -> bool: + """ + Check if input buffer is a multi-outputs template buffer + """ + from . import ir + + return isinstance(input_buf, ir.CppTemplateBuffer) and isinstance( + input_buf.layout, ir.MultiOutputLayout + ) + + +def is_output_of_multi_outputs_template( + input_buf: Optional[Union[Buffer, Operation]], +) -> bool: + """ + Check if input buffer is a output of multi-outputs template buffer + """ + from . import ir + + return ( + isinstance(input_buf, ir.MultiOutput) + and len(input_buf.inputs) == 1 + and is_multi_outputs_template(input_buf.inputs[0]) # type: ignore[arg-type] + ) + + +def is_collective( + node: Optional[Union[Node, Operation]], + op: Optional[torch._ops.OperatorBase] = None, +) -> bool: + if node is None: + return False + + from . import ir + + return ( + isinstance(node, ir._CollectiveKernel) + and not isinstance(node, ir._WaitKernel) + and (op is None or node.op_overload is op) + ) or ( + # TODO: this is a temporary solution to ensure that we can identify torchrec's + # communication ops. But in order to allow better communication and computation + # overlap, torchrec's communication ops should be not used. + type(node) is ir.FallbackKernel + and ( + # NOTE: the `hasattr()` check is to bypass errors such as the following: + # AttributeError: '_OpNamespace' 'torchrec' object has no attribute 'all_to_all_single' + ( + hasattr(torch.ops.torchrec, "all_to_all_single") + and node.op_overload == torch.ops.torchrec.all_to_all_single.default + ) + or ( + hasattr(torch.ops.torchrec, "all_gather_into_tensor") + and node.op_overload + == torch.ops.torchrec.all_gather_into_tensor.default + ) + or ( + hasattr(torch.ops.torchrec, "reduce_scatter_tensor") + and node.op_overload == torch.ops.torchrec.reduce_scatter_tensor.default + ) + ) + ) + + +def is_wait(node: Optional[Union[IRNode, Operation]]) -> bool: + from . import ir + + return type(node) is ir._WaitKernel + + +def contains_collective( + snode: BaseSchedulerNode, + filter_fn: Optional[Callable[[BaseSchedulerNode], bool]] = None, +) -> bool: + from torch._inductor.scheduler import GroupedSchedulerNode + + if isinstance(snode, GroupedSchedulerNode): + return any(contains_collective(x) for x in snode.snodes) + + return is_collective(snode.node) and (filter_fn is None or filter_fn(snode)) + + +def contains_wait(snode: BaseSchedulerNode) -> bool: + from torch._inductor.scheduler import GroupedSchedulerNode + + if isinstance(snode, GroupedSchedulerNode): + return any(contains_wait(x) for x in snode.snodes) + else: + return is_wait(snode.node) + + +def is_fallback_op( + node: Optional[Operation], + op: Union[torch._ops.OpOverload, Collection[torch._ops.OpOverload]], +) -> bool: + from . import ir + + if isinstance(op, torch._ops.OpOverload): + op = [op] + return isinstance(node, ir.FallbackKernel) and node.op_overload in op + + +def buf_name_to_fused_snode( + buf_name: str, name_to_buf: dict[str, Any], name_to_fused_node: dict[str, Any] +) -> Any: + return name_to_fused_node[name_to_buf[buf_name].defining_op.get_name()] + + +def find_recursive_deps_of_node( + snode: BaseSchedulerNode, + collected_node_set: MutableSet[BaseSchedulerNode], + name_to_buf: dict[str, SchedulerBuffer], + name_to_fused_node: dict[str, BaseSchedulerNode], + criteria_cb: Callable[[Any], bool] = lambda snode: False, +) -> None: + if criteria_cb(snode): + return + collected_node_set.add(snode) + for dep in snode.unmet_dependencies: + defining_op_for_dep = buf_name_to_fused_snode( + dep.name, name_to_buf, name_to_fused_node + ) + if defining_op_for_dep in collected_node_set: + continue + find_recursive_deps_of_node( + defining_op_for_dep, + collected_node_set, + name_to_buf, + name_to_fused_node, + criteria_cb=criteria_cb, + ) + + +def find_recursive_users_of_node( + snode: BaseSchedulerNode, + collected_node_set: MutableSet[BaseSchedulerNode], + name_to_buf: dict[str, SchedulerBuffer], + name_to_fused_node: dict[str, BaseSchedulerNode], + criteria_cb: Callable[[Any], bool] = lambda snode: False, +) -> None: + if criteria_cb(snode): + return + collected_node_set.add(snode) + for o in snode.get_outputs(): + for user in o.users: + assert user.node is not None + if user.node.get_name() == "OUTPUT": + continue + if user.node.get_name() not in name_to_fused_node: + continue + user_op = name_to_fused_node[user.node.get_name()] + if user_op in collected_node_set: + continue + find_recursive_users_of_node( + user_op, + collected_node_set, + name_to_buf, + name_to_fused_node, + criteria_cb=criteria_cb, + ) + + +def num_fw_fixed_arguments(dynamo_gm_num_inputs: int, aot_fw_gm_num_inputs: int) -> int: + "Computes the number of inputs to the aot fw graph which have fixed addresses (params and buffers)" + num_rng_seed_offset_inputs = ( + 2 if torch._functorch.config.functionalize_rng_ops else 0 + ) + # AOT won't lift any parameters if we're inlining NN Modules + # however desugaring subclasses will still add arguments + # resulted in extra fixed inputs https://github.com/pytorch/pytorch/issues/130502 + return aot_fw_gm_num_inputs - dynamo_gm_num_inputs - num_rng_seed_offset_inputs + + +def count_tangents(fx_g: torch.fx.GraphModule) -> int: + """ + Infers which inputs are static for a backwards graph + """ + + def is_saved_tensor(x: Node) -> bool: + return ( + "tangents" not in x.name + and "bwd_seed" not in x.name + and "bwd_base_offset" not in x.name + and "bwd_rng_state" not in x.name + ) + + arg_count = 0 + static_arg_idxs = [] + for n in fx_g.graph.nodes: + if n.op == "placeholder": + if is_saved_tensor(n): + static_arg_idxs.append(arg_count) + arg_count += 1 + + assert static_arg_idxs == list(range(len(static_arg_idxs))) + return len(static_arg_idxs) + + +@dataclasses.dataclass +class BoxedBool: + value: bool + + def __bool__(self) -> bool: + return self.value + + @staticmethod + def disable(obj: Any) -> Union[BoxedBool, bool]: + if isinstance(obj, BoxedBool): + obj.value = False + return obj + return False + + +@contextlib.contextmanager +def collect_defined_kernels(kernel_list: list[str]) -> Iterator[None]: + from .codegen.wrapper import PythonWrapperCodegen + + orig_define_kernel = PythonWrapperCodegen.define_kernel + + def define_kernel( + self: PythonWrapperCodegen, + kernel_name: str, + kernel_code: str, + metadata: Optional[str] = None, + gpu: bool = True, + cpp_definition: Optional[str] = None, + ) -> Any: + kernel_list.append(kernel_code) + return orig_define_kernel( + self, kernel_name, kernel_code, metadata, gpu, cpp_definition + ) + + with mock.patch.object(PythonWrapperCodegen, "define_kernel", define_kernel): + yield + + +def get_cloned_parameter_buffer_name(name: str) -> str: + return name + "__original__" + + +def is_gpu(device: Optional[str]) -> bool: + return device in GPU_TYPES + + +def device_need_guard(device: str) -> bool: + return device != "mps" and is_gpu(device) # TODO: MPS does not expose streams now + + +def needs_fallback_due_to_atomic_add_limitations(dtype: torch.dtype) -> bool: + if dtype == torch.bfloat16 and torch.cuda.is_available(): + return torch.cuda.get_device_capability() < (9, 0) + elif dtype == torch.bfloat16 and torch.xpu.is_available(): + return True + else: + return dtype in (torch.int64, torch.bool) + + +def use_scatter_fallback( + op_overload: torch._ops.OpOverload, + reduction_type: Optional[str], + self_dtype: torch.dtype, + src_dtype: torch.dtype, + src_device_type: str, + src_is_tensor: bool, +) -> bool: + if ( + op_overload.overloadpacket + in (torch.ops.aten.scatter_reduce_, torch.ops.aten.scatter_reduce) + and reduction_type is None + ): + return False + + reduce_ty = ( + "add" if op_overload.overloadpacket == torch.ops.aten.scatter_ else "sum" + ) + + return ( + reduction_type not in (None, reduce_ty) + or ( + src_is_tensor + and is_gpu(src_device_type) + and needs_fallback_due_to_atomic_add_limitations(src_dtype) + ) + or ( + op_overload.overloadpacket == torch.ops.aten.scatter_reduce_ + and reduction_type == "sum" + and src_is_tensor + and src_device_type == "cpu" + and config.cpp.fallback_scatter_reduce_sum + and (config.cpp.dynamic_threads or parallel_num_threads() != 1) + ) + or (reduction_type == reduce_ty and self_dtype in (torch.bool, torch.int64)) + or torch.are_deterministic_algorithms_enabled() + ) + + +def dump_node_schedule(node_schedule: Sequence[BaseSchedulerNode]) -> None: + """ + An API that can be used in pdb to dump a node_schedule. + Right mainly dump the read/write dependencies but can add more as needed. + """ + from torch._inductor.codegen.simd import DisableReduction, EnableReduction + from torch._inductor.scheduler import SchedulerNode + + print(f"Node schedule with {len(node_schedule)} nodes") + for idx, node in enumerate(node_schedule): + print(f" {idx:3}:") + if node is EnableReduction: + print("enable reduction") + elif node is DisableReduction: + print("disable reduction") + elif isinstance(node, SchedulerNode): + is_red = node.is_reduction() + print(f"{'red' if is_red else 'pw'} scheduler node") + if is_red: + assert node.node is not None + print(f"original reduction hint {node.node.data.reduction_hint}") # type: ignore[attr-defined] + print("ReadDep:") + for dep in node.read_writes.reads: + print(dep) + print("WriteDep:") + for dep in node.read_writes.writes: + print(dep) + else: + raise RuntimeError(f"Unrecognized node type: {type(node)}") + + +def tensor_is_aligned(tensor: torch.Tensor) -> bool: + # See Note: [Input Alignment handling in Inductor] + # Right now, we don't try to guard on the alignment of the storage offset. + # When this comment was written, non-symbolic storage_offsets are not guarded on + # but symbolic storage_offsets are. For consistency, we suppress guard creation + # upon performing this check: that ensures that we don't add recompiles when we + # add this logic. + from torch.fx.experimental.symbolic_shapes import statically_known_true + + return statically_known_true( + (tensor.storage_offset() * get_dtype_size(tensor.dtype)) % GPU_ALIGN_BYTES == 0 + ) + + +def should_assume_input_aligned(example_input: torch.Tensor) -> bool: + # See Note: [Input Alignment handling in Inductor] + + # right now, we only care about alignment for cuda tensors. + if not is_gpu(example_input.device.type): + return False + return config.assume_aligned_inputs or tensor_is_aligned(example_input) + + +def maybe_get_suppress_shape_guards_ctx() -> contextlib.AbstractContextManager[None]: + # Try to get TracingContext.try_get().fake_mode.shape_env.suppress_guards() + # If it's not available, return a nullcontext. + + # If we're dealing with cudagraphs, we might not have a tracing_context + tracing_context = torch._guards.TracingContext.try_get() + if not tracing_context: + return contextlib.nullcontext() + + # In standalone inductor compile mode, we might not have a shape_env attached to the fake mode + if not tracing_context.fake_mode or not tracing_context.fake_mode.shape_env: + return contextlib.nullcontext() + shape_env = tracing_context.fake_mode.shape_env + return shape_env.suppress_guards() + + +def run_and_get_cpp_code( + fn: Callable[P, _T], *args: P.args, **kwargs: P.kwargs +) -> tuple[_T, str]: + # We use the patch context manager instead of using it as a decorator. + # In this way, we can ensure that the attribute is patched and unpatched correctly + # even if this run_and_get_cpp_code function is called multiple times. + with unittest.mock.patch.object(config, "debug", True): + torch._dynamo.reset() + import io + import logging + + log_capture_string = io.StringIO() + ch = logging.StreamHandler(log_capture_string) + from torch._inductor.codecache import output_code_log + + output_code_log.addHandler(ch) + prev_level = output_code_log.level + output_code_log.setLevel(logging.DEBUG) + result = fn(*args, **kwargs) + s = log_capture_string.getvalue() + output_code_log.setLevel(prev_level) + output_code_log.removeHandler(ch) + return result, s + + +def shape_env_from_inputs(inputs: Sequence[InputType]) -> Optional[ShapeEnv]: + fake_mode = detect_fake_mode(inputs) + + # TODO(voz): It would be nice to enable this assert, but there are lots of tests that + # pass in real inputs for now. + # if len(inputs) > 0: + # assert fake_mode is not None, breakpoint() + + if fake_mode is not None: + return fake_mode.shape_env + + # When there are no tensor inputs, get shape_env from the first SymInt. + for input in inputs: + if isinstance(input, torch.SymInt): + return input.node.shape_env + + # Check tensor sizes and strides for SymInt values + if isinstance(input, torch.Tensor): + for size in input.size(): + if isinstance(size, torch.SymInt): + return size.node.shape_env + for stride in input.stride(): + if isinstance(stride, torch.SymInt): + return stride.node.shape_env + + # TODO(voz): Should we always have one anyway? + return None + + +def align_inputs_from_check_idxs( + model: Callable[[list[InputType]], _T], + inputs_to_check: Sequence[int], + mutated_input_idxs: OrderedSet[int], +) -> Callable[[list[InputType]], _T]: + if len(inputs_to_check) == 0: + return model + + def run(new_inputs: list[InputType]) -> Any: + old_tensors, new_tensors = copy_misaligned_inputs( + new_inputs, inputs_to_check, mutated_input_idxs + ) + out = model(new_inputs) + + # If a mutated tensor was cloned to be aligned, we need to reflect back the mutation to the + # original tensor. + if len(old_tensors): + torch._foreach_copy_(old_tensors, new_tensors) + + return out + + return run + + +def clone_preserve_strides(x: torch.Tensor) -> torch.Tensor: + if 0 in x.size(): + # Short-circuits if the shape has no elements + needed_size = 0 + else: + needed_size = ( + sum((shape - 1) * stride for shape, stride in zip(x.size(), x.stride())) + 1 + ) + buffer = torch.as_strided(x, (needed_size,), (1,)).clone() + return torch.as_strided(buffer, x.size(), x.stride()) + + +def copy_misaligned_inputs( + new_inputs: list[InputType], + check_inputs_idxs: Sequence[int], + return_pair_idxs: Optional[OrderedSet[int]] = None, +) -> tuple[list[torch.Tensor], list[torch.Tensor]]: + """ + Clones misaligned tensors which we inferred were aligned. Returns a tuple of [old_tensors], [new_tensors] for every + cloned tensor which is in `return_pair_idxs`. + """ + + old_tensors: list[torch.Tensor] = [] + new_tensors: list[torch.Tensor] = [] + + # hoist above loop because this is on the hot path + ret_pair_defined = return_pair_idxs is not None + for i in check_inputs_idxs: + _inp = new_inputs[i] + assert isinstance(_inp, torch.Tensor), ( + f"Expected tensors only, but got: {type(_inp)}" + ) + if _inp.data_ptr() % ALIGNMENT: + new_inputs[i] = clone_preserve_strides(_inp) + + if ret_pair_defined and i in return_pair_idxs: # type: ignore[operator] + old_tensors.append(_inp) + new_tensors.append(new_inputs[i]) # type: ignore[arg-type] + + return old_tensors, new_tensors + + +def remove_unaligned_input_idxs( + inputs: Sequence[InputType], + static_input_idxs: Sequence[int], +) -> Sequence[int]: + """ + We require all inputs to be aligned, so introduce a copy for any + that aren't. + """ + aligned_static_input_idxs = [] + for idx in static_input_idxs: + input = inputs[idx] + if isinstance(input, torch.Tensor) and (input.data_ptr() % ALIGNMENT) == 0: + aligned_static_input_idxs.append(idx) + if len(aligned_static_input_idxs) != len(static_input_idxs): + return aligned_static_input_idxs + return static_input_idxs + + +def expr_fits_within_32bit(e: sympy.Expr) -> bool: + from .virtualized import V + + int_max = torch.iinfo(torch.int32).max + size_hint = V.graph.sizevars.size_hint + has_hint = V.graph.sizevars.shape_env.has_hint + + if config.assume_32bit_indexing: + V.graph.sizevars.check_leq(e, int_max) # type: ignore[arg-type] + return True + + # Allow for unhinted e as long as we can still statically prove + # (e.g., via ValueRanges) that it is still in bounds + if V.graph.sizevars.statically_known_true(e <= int_max): + return True + + # AOTI doesn't guard on < 2**32, so checking hints isn't a viable option, + # in case the hinted value is < 2**32, but the allowed range is larger. + # However, to prevent possible perf regressions on pre-existing AOTI models + # which don't set an upper bound on the valid range, we'll skip the check. + # To recap: + # - If using AOTI: + # - If allowed range has no upper bound, then check the hint to determine + # whether this fits in int32 + # - If allowed range does have an upper bound, then obey the upper bound + # (check whether upper bound < int32_max) without checking the hint. + + if V.aot_compilation: + # check whether value has an upper bound (1e20 is > INT64_MAX, assume + # there is no upper bound if it can be larger than 1e20) + if V.graph.sizevars.statically_known_true(e < 1e20): + # if so, then assume int_max < upper bound < inf + # so this could potentially have int64 values + return False + + # Otherwise, the hint MUST exist and be in range + return has_hint(e) and size_hint(e) <= int_max + + +def set_tracing_context_output_strides( + example_inputs: Sequence[Any], compiled_graph: CompiledFxGraph +) -> None: + # Return the output strides to the caller via TracingContext + context = torch._guards.TracingContext.try_get() + if context is not None and context.output_strides is not None: + assert len(context.output_strides) == 0 + shape_env = shape_env_from_inputs(example_inputs) + assert compiled_graph.output_strides is not None + for exprs in compiled_graph.output_strides: + if exprs is None: + context.output_strides.append(None) + else: + fakify_first_call = False + if ctx := torch._guards.TracingContext.try_get(): + fakify_first_call = ctx.fakify_first_call + + def map_expr(e: Any) -> Union[float, int, SymInt, SymFloat, SymBool]: + if shape_env is None: + return int(e) + if fakify_first_call: + return shape_env.deserialize_symexpr(e) + return shape_env.evaluate_symexpr(e) + + context.output_strides.append( + tuple(map_expr(e) for e in exprs) # type: ignore[misc] + ) + + +def should_use_remote_fx_graph_cache() -> bool: + if config.fx_graph_remote_cache is not None: + return config.fx_graph_remote_cache + if not config.is_fbcode(): + return False + + if torch._utils_internal.is_fb_unit_test(): + return False + + try: + from torch._inductor.fb.remote_cache import REMOTE_CACHE_VERSION + except ModuleNotFoundError: + return False + + return REMOTE_CACHE_VERSION >= torch._utils_internal.justknobs_getval_int( + "pytorch/remote_cache:fx_graph_memcache_version" + ) + + +def normalize_name(name: str) -> str: + return re.sub(r"[^a-zA-Z0-9_]", "_", name) + + +# correct cases where Triton types names don't match PyTorch +_triton_type_mapping = { + "tl.bool": "tl.int1", + "tl.float8_e4m3fn": "tl.float8e4nv", + "tl.float8_e5m2": "tl.float8e5", + "tl.float8_e4m3fnuz": "tl.float8e4b8", + "tl.float8_e5m2fnuz": "tl.float8e5b16", + # TODO: remove when support is added in triton + # https://github.com/triton-lang/triton/issues/6054 + "tl.float8_e8m0fnu": "tl.uint8", + "tl.float4_e2m1fn_x2": "tl.uint8", +} +_torch_triton_mapping = {v: k for k, v in _triton_type_mapping.items()} + + +_triton_type_re = re.compile(r"^.*[.]") + + +def triton_type(dtype: torch.dtype) -> str: + """Convert torch.dtype to triton type""" + triton_type_name = _triton_type_re.sub("tl.", str(dtype)) + return _triton_type_mapping.get(triton_type_name, triton_type_name) + + +def triton_type_to_torch(dtype: str) -> torch.dtype: + adjusted_type = _torch_triton_mapping.get(dtype, dtype) + type_name = adjusted_type.replace("tl.", "") + out_dtype = getattr(torch, type_name) + assert isinstance(out_dtype, torch.dtype) + return out_dtype + + +def is_same_tensor(data: torch.Tensor, value: torch.Tensor) -> bool: + return ( + not data.is_mkldnn + and data.size() == value.size() + and data.stride() == value.stride() + and data.dtype == value.dtype + and data.device == value.device + and data.untyped_storage().data_ptr() == value.untyped_storage().data_ptr() + and data.storage_offset() == value.storage_offset() + ) + + +def is_same_mkldnn_tensor(data: torch.Tensor, value: torch.Tensor) -> bool: + return ( + data.is_mkldnn + and data.size() == value.size() + and data.dtype == value.dtype + and data.device == value.device + and torch.ops.mkldnn.data_ptr(data) == torch.ops.mkldnn.data_ptr(value) + ) + + +@functools.cache +def boolean_ops() -> tuple[str, ...]: + return ( + "isinf", + "isnan", + "logical_not", + "logical_and", + "signbit", + "and_", + "le", + "lt", + "ge", + "gt", + "eq", + "ne", + "or_", # TODO should remove this op + "xor", + ) + + +@dataclasses.dataclass +class OpDtypeRule: + type_promotion_kind: ELEMENTWISE_TYPE_PROMOTION_KIND + override_return_dtype: Optional[torch.dtype] + + +op_dtype_propagation_rules: dict[str, OpDtypeRule] = {} + + +def register_op_dtype_propagation_rules( + name: str, + type_promotion_kind: ELEMENTWISE_TYPE_PROMOTION_KIND, + override_return_dtype: Optional[torch.dtype], +) -> None: + op_dtype_propagation_rules[name] = OpDtypeRule( + type_promotion_kind, override_return_dtype + ) + + +op_requires_libdevice_fp64: OrderedSet[str] = OrderedSet() + + +def register_op_requires_libdevice_fp64(name: str) -> None: + op_requires_libdevice_fp64.add(name) + + +def get_current_backend(device_type: Optional[str] = None) -> str: + from torch._inductor.virtualized import V + + if not device_type: + device_type = V.graph.get_current_device_or_throw().type + if device_type == "cpu": + return config.cpu_backend + elif device_type == "mps": + return "mps" + elif device_type == "xpu": + return config.xpu_backend + else: + return config.cuda_backend + + +def upcast_compute_type(dtype: torch.dtype) -> torch.dtype: + """Maybe upcast [b]float16 to float32""" + if ( + dtype in (torch.float16, torch.bfloat16) + and config.triton.codegen_upcast_to_fp32 + and get_current_backend() == "triton" + ): + return torch.float32 + return dtype + + +KeyType = TypeVar("KeyType") +ValType = TypeVar("ValType") + + +class ScopedDict(MutableMapping[KeyType, ValType]): + """ + A dictionary-like object that allows for scoped updates. It maintains + an original dictionary and a set of new items that can override + the original items within the scope. The original dictionary is + unmodified. + """ + + def __init__(self, original_dict: Mapping[KeyType, ValType]): + self.original_dict = original_dict + self.new_items: dict[KeyType, ValType] = {} + + def __getitem__(self, key: KeyType) -> ValType: + if key in self.new_items: + return self.new_items[key] + return self.original_dict[key] + + def __setitem__(self, key: KeyType, value: ValType) -> None: + self.new_items[key] = value + + def __contains__(self, key: object) -> bool: + return key in self.new_items or key in self.original_dict + + def get(self, key: KeyType, default: Optional[ValType] = None) -> Optional[ValType]: # type: ignore[override] + if key in self.new_items: + return self.new_items[key] + return self.original_dict.get(key, default) + + def __len__(self) -> int: + n = len(self.original_dict) + for k in self.new_items: + if k not in self.original_dict: + n += 1 + return n + + def __iter__(self) -> Iterator[KeyType]: + yield from self.original_dict + for k in self.new_items: + if k not in self.original_dict: + yield k + + def __bool__(self) -> bool: + return bool(self.original_dict or self.new_items) + + def __delitem__(self, key: KeyType) -> None: + raise NotImplementedError + + +@dataclass_transform(frozen_default=True) +def ir_dataclass(cls: Optional[type[Any]] = None, /, *, frozen: bool = True) -> Any: + def wrap(cls: _T) -> _T: + return dataclasses.dataclass(cls, kw_only=True, frozen=frozen) # type: ignore[call-overload] + + if cls is None: + return wrap + return wrap(cls) + + +def get_donated_idxs() -> Optional[list[int]]: + tracing_context = torch._guards.TracingContext.try_get() + if tracing_context is not None and tracing_context.fw_metadata: + return tracing_context.fw_metadata.bw_donated_idxs + return None + + +class TritonAttrsDescriptorVersion(enum.Enum): + V0_NO_TRITON = 0 + V1_COMPILER = 1 # triton.compiler.compiler.AttrsDescriptor + V2_BACKENDS = 2 # triton.backends.compiler.AttrsDescriptor + V3_BACKENDS_TUPLE = ( + 3 # triton.backends.compiler.AttrsDescriptor, but with tuple support + ) + V4_DICT = 4 # a raw dict + + +@functools.cache +def get_triton_attrs_descriptor_version() -> TritonAttrsDescriptorVersion: + if importlib.util.find_spec("triton") is None: + return TritonAttrsDescriptorVersion.V0_NO_TRITON + + import triton.backends.compiler + import triton.compiler.compiler + + if hasattr(triton.backends.compiler, "AttrsDescriptor"): + # Triton 3.2.0 + # AttrsDescriptor was moved from triton.compiler.compiler to triton.backends.compiler. + # AttrsDescriptor and its serialization format were also changed. + + # TODO: implement V3_BACKENDS_TUPLE + # On Dec 9, 2024, tuple support (triton #5220) was implemented and breaks handling. + # We don't have a way to detect this (and haven't implemented this version) + return TritonAttrsDescriptorVersion.V2_BACKENDS + elif hasattr(triton.compiler.compiler, "AttrsDescriptor"): + # Triton 3.0.0 + return TritonAttrsDescriptorVersion.V1_COMPILER + else: + # After Jan 1, 2025 + # AttrsDescriptor was removed and replaced with a raw dict. + return TritonAttrsDescriptorVersion.V4_DICT + + +def triton_version_uses_attrs_dict() -> bool: + return get_triton_attrs_descriptor_version() == TritonAttrsDescriptorVersion.V4_DICT + + +def _fx_node_is_input_dependent_cudagraph_unsafe(fx_node: torch.fx.Node) -> bool: + """ + Check if an FX node is cudagraph-unsafe based on its input arguments. + + Some ops are only cudagraph-unsafe depending on their inputs (e.g., index_put + with boolean indices triggers .nonzero() during capture, but integer indices + are safe). + """ + from torch.fx.operator_schemas import normalize_function + + target = fx_node.target + if not isinstance(target, torch._ops.OpOverload): + return False + + # index_put with boolean indices triggers .nonzero() during capture + if target in ( + torch.ops.aten.index_put.default, + torch.ops.aten.index_put_.default, + torch.ops.aten._unsafe_index_put.default, + ): + normalized = normalize_function( + target, fx_node.args, fx_node.kwargs, normalize_to_only_use_kwargs=True + ) + if normalized is not None: + _, kwargs = normalized + indices = kwargs["indices"] + for idx in indices: + if idx is not None and idx.meta["val"].dtype in ( + torch.bool, + torch.uint8, + ): + return True + + return False + + +def is_cudagraph_unsafe_fx_node(fx_node: torch.fx.Node) -> bool: + """ + Check if an FX node is cudagraph-unsafe. + + This includes: + - Ops in FORBIDDEN_CUDAGRAPH_OPS (CPU sync, dynamic alloc, etc.) + - Ops with the cudagraph_unsafe tag + - Input-dependent unsafe ops (e.g., index_put with boolean indices) + - Ops with sparse tensor outputs + """ + target = fx_node.target + + # Check against the forbidden ops set + if str(target) in FORBIDDEN_CUDAGRAPH_OPS: + return True + + # Check for cudagraph_unsafe tag + if ( + isinstance(target, torch._ops.OpOverload) + and torch._C.Tag.cudagraph_unsafe in target.tags # type: ignore[attr-defined] + ): + return True + + # Check for input-dependent unsafety + if _fx_node_is_input_dependent_cudagraph_unsafe(fx_node): + return True + + # Check for sparse tensor outputs + if (val := fx_node.meta.get("val")) is not None: + vals = [val] if not isinstance(val, (list, tuple)) else val + for v in vals: + if isinstance(v, torch.Tensor) and v.is_sparse: + return True + + return False + + +def is_cudagraph_unsafe_op(node: Operation) -> bool: + """ + Returns True if the node is an op that is not cudagraphable. + This includes: + - Ops in FORBIDDEN_CUDAGRAPH_OPS (CPU sync, dynamic alloc, etc.) + - Ops with the cudagraph_unsafe tag + - index_put_ with boolean indices (triggers .nonzero() during capture) + - Control flow nodes (Conditional, WhileLoop) + - Ops with sparse tensor outputs + """ + from . import ir + + # Control flow nodes are cudagraph-unsafe + if isinstance(node, (ir.Conditional, ir.WhileLoop)): + return True + + if not isinstance(node, (ir.FallbackKernel, ir.ExternKernel)): + return False + + fx_node = getattr(node, "fx_node", None) + if fx_node is not None and is_cudagraph_unsafe_fx_node(fx_node): + return True + + return False + + +def get_ld_library_path() -> str: + path = os.environ.get("LD_LIBRARY_PATH", "") + if config.is_fbcode(): + from libfb.py.parutil import get_runtime_path + + runtime_path = get_runtime_path() + if runtime_path: + lib_path = os.path.join(runtime_path, "runtime", "lib") + path = os.pathsep.join([lib_path, path]) if path else lib_path + + return path + + +def is_codegen_graph_partition_subgraph(wrapper: PythonWrapperCodegen) -> bool: + from torch._inductor.codegen.wrapper import SubgraphPythonWrapperCodegen + + return ( + isinstance(wrapper, SubgraphPythonWrapperCodegen) + and wrapper.partition_signatures is not None + ) + + +def is_using_cudagraph_partition() -> bool: + return ( + torch._inductor.config.triton.cudagraphs + or _unstable_customized_partition_wrapper.wrapper is not None + ) and torch._inductor.config.graph_partition + + +def dtype_from_size(size: int) -> torch.dtype: + from .virtualized import V + + if V.graph.sizevars.statically_known_lt( + size, 2**31 + ) and V.graph.sizevars.statically_known_geq(size, -(2**31)): + return torch.int32 + else: + return torch.int64 + + +SUPPORTED_MKLDNN_DEVICES = ("cpu", "xpu") + + +def is_mkldnn_bf16_supported(device_type: str) -> bool: + """ + Returns True if the device supports MKL-DNN BF16. + """ + if device_type == "cpu": + return torch.ops.mkldnn._is_mkldnn_bf16_supported() + elif "xpu" in device_type: + # match "xpu", "xpu:0", "xpu:1", etc. + return True + return False + + +def is_mkldnn_fp16_supported(device_type: str) -> bool: + """ + Returns True if the device supports MKL-DNN FP16. + """ + if device_type == "cpu": + return torch.ops.mkldnn._is_mkldnn_fp16_supported() + elif "xpu" in device_type: + # match "xpu", "xpu:0", "xpu:1", etc. + return True + return False + + +def tabulate_2d(elements: Sequence[Sequence[T]], headers: Sequence[T]) -> str: + widths = [len(str(e)) for e in headers] + for row in elements: + assert len(row) == len(headers) + for i, e in enumerate(row): + widths[i] = max(widths[i], len(str(e))) + lines = [] + lines.append("|".join(f" {h:{w}} " for h, w in zip(headers, widths))) + # widths whitespace horizontal separators + total_width = sum(widths) + (len(widths) * 2) + (len(widths) - 1) + lines.append("-" * total_width) + for row in elements: + lines.append("|".join(f" {e:{w}} " for e, w in zip(row, widths))) + return "\n".join(lines) + + +def zip_dicts( + dict1: Mapping[KeyType, ValType], + dict2: Mapping[KeyType, ValType], + d1_default: ValType | None = None, + d2_default: ValType | None = None, +) -> Generator[tuple[KeyType, ValType | None, ValType | None], None, None]: + """ + Zip two dictionaries together, replacing missing keys with default values. + + Args: + dict1 (dict): The first dictionary. + dict2 (dict): The second dictionary. + d1_default (Any): the default value for the first dictionary + d2_default (Any): the default value for the second dictionary + + Yields: + tuple: A tuple containing the key, the value from dict1 (or d1_default if missing), + and the value from dict2 (or d2_default if missing). + """ + # Find the union of all keys + all_keys = OrderedSet(dict1.keys()) | OrderedSet(dict2.keys()) + + # Iterate over all keys + for key in all_keys: + # Get the values from both dictionaries, or default if missing + value1 = dict1.get(key) + value2 = dict2.get(key) + + yield ( + key, + value1 if value1 is not None else d1_default, + value2 if value2 is not None else d2_default, + ) + + +def maybe_aoti_standalone_config(config_patches: dict[str, Any]) -> dict[str, Any]: + """ + Ensures the configuration is internally consistent for standalone AOTInductor. + + If `aot_inductor_mode.compile_standalone` is set to True in the provided + `config_patches` (or falls back to the global config), this function ensures + that the following configs are also enabled: + - `aot_inductor.package_cpp_only` + + Args: + config_patches (dict[str, Any]): A dictionary of user-provided config + overrides for AOTInductor compilation. + + Returns: + dict[str, Any]: The possibly-updated `config_patches` dictionary. + """ + + def patch_config( + config_patches: dict[str, Any], config_name: str, config_value: Any + ) -> None: + value = config_patches.get(config_name, getattr(config, config_name)) + if value is None: + config_patches[config_name] = config_value + elif not value and value != config_value: + raise RuntimeError( + f"Invalid config: {config_name}={config_value} when aot_inductor_mode.compile_standalone is True." + ) + + def force_patch_config( + config_patches: dict[str, Any], config_name: str, config_value: Any + ) -> None: + value = config_patches.get(config_name, getattr(config, config_name)) + if value != config_value: + log.warning( + "Overriding: %s=%s when aot_inductor_mode.compile_standalone is True.", + config_name, + config_value, + ) + config_patches[config_name] = config_value + + compile_standalone = config_patches.get( + "aot_inductor_mode.compile_standalone", + config.aot_inductor_mode.compile_standalone, + ) + # Make a copy of the config_patches to avoid modifying the original dictionary, needed for testing + config_patches = config_patches.copy() + if compile_standalone: + # Standlaone AOTInductor means only generate cpp project for building a standalone binary + patch_config(config_patches, "aot_inductor.package_cpp_only", True) + # Standlaone AOTInductor needs to embed the kernel code in the binary + patch_config(config_patches, "aot_inductor.embed_kernel_binary", True) + # Default to use multi-arch kernel codegen for non-rocm GPU + patch_config( + config_patches, "aot_inductor.emit_multi_arch_kernel", not torch.version.hip + ) + patch_config( + config_patches, "aot_inductor.model_name_for_generated_files", "aoti_model" + ) + # TODO: change these two configs to default to None and use patch_config + force_patch_config( + config_patches, + "aot_inductor.link_libtorch", + config.test_configs.use_libtorch, + ) + force_patch_config(config_patches, "aot_inductor.dynamic_linkage", False) + + cross_target_platform = config_patches.get( + "aot_inductor.cross_target_platform", + config.aot_inductor.cross_target_platform, + ) + + package_constants_in_so = config_patches.get( + "aot_inductor.package_constants_in_so", + config.aot_inductor.package_constants_in_so, + ) + + if cross_target_platform == "windows" and package_constants_in_so: + raise RuntimeError( + "config.aot_inductor.package_constants_in_so is not supported for windows cross-compilation. " + "Please use config.aot_inductor.package_constants_on_disk_format = binary_blob." + ) + + return config_patches + + +def determine_aoti_mmap_flags(consts_size: int) -> tuple[bool, bool]: + """ + Decide whether we should mmap weights, and whether to store the weights with .so. + + If force_mmap_weights or package_constants_on_disk_format == "binary_blob" configs are set, respect the config. + + Returns tuple (use_external_weights, use_mmap_weights). + """ + + if ( + config.aot_inductor.force_mmap_weights + and config.aot_inductor.package_constants_on_disk_format == "binary_blob" + ): + raise RuntimeError( + "config.aot_inductor.package_constants_on_disk_format = binary_blob and " + "config.aot_inductor.force_mmap_weights cannot both be True." + ) + + if config.aot_inductor.force_mmap_weights: + if config.aot_inductor.cross_target_platform == "windows": + raise RuntimeError( + "when cross_target_platform is windows, use_mmap_weights should not be true." + ) + use_mmap_weights = True + use_external_weights = False + return use_external_weights, use_mmap_weights + + if config.aot_inductor.package_constants_on_disk_format == "binary_blob": + use_external_weights = True + use_mmap_weights = False + return use_external_weights, use_mmap_weights + + if consts_size <= 2_000_000_000: + return False, False + + use_external_weights = False + use_mmap_weights = not config.is_fbcode() + + return use_external_weights, use_mmap_weights + + +def is_valid_aoti_model_name() -> bool: + """ + Validates if a model name is suitable for use in code generation. + + """ + from torch._inductor import config + + model_name = config.aot_inductor.model_name_for_generated_files + + if model_name is None: + return True + + if not isinstance(model_name, str): + raise ValueError("Invalid AOTI model name: Model name must be a string") + + if model_name == "": + return True + + # Can only contain alphanumeric characters and underscores + if not re.match(r"^[a-zA-Z_][a-zA-Z0-9_]*$", model_name): + raise ValueError( + "Invalid AOTI model name: Model name can only contain letters, numbers, and underscores" + ) + + return True + + +def get_free_symbols(x: IterateExprs, unbacked_only: bool) -> OrderedSet[sympy.Symbol]: + if unbacked_only: + return free_unbacked_symbols(x) + else: + return free_symbols(x) + + +def maybe_log_cudagraph_partition( + msg: str, + prefix: Optional[str] = "cudagraph partition due to ", + node: Optional[BaseSchedulerNode] = None, +) -> None: + """ + Cudagraph partition may lead to extra memory overhead so we + log partition reasons to help users understand the overhead. + """ + if not config.triton.cudagraphs: + return + + warning_msg = f"{prefix}{msg}" + + if ( + node + and (ir_node := node.node) + and (fx_node := ir_node.get_origin_node()) + and (stack_trace := fx_node.meta.get("stack_trace", None)) + ): + warning_msg = f"{warning_msg}. Found from : \n {stack_trace}" + + perf_hint_log.warning(warning_msg) + + +def python_subprocess_env() -> dict[str, str]: + """ + Get a base environment for running Python subprocesses. + """ + + env = { + # Inherit the environment of the current process. + **os.environ, + # Set the PYTHONPATH so the subprocess can find torch. + "PYTHONPATH": os.environ.get( + "TORCH_CUSTOM_PYTHONPATH", os.pathsep.join(sys.path) + ), + } + + # Set PYTHONHOME for internal builds, to account for builds that bundle the + # runtime. Otherwise they will use the libraries and headers from the + # platform runtime instead. + # + # This can't be done for external builds. The process can be run from a + # venv and that won't include Python headers. The process needs to be able + # to search for and find the platform runtime. + if config.is_fbcode(): + env["PYTHONHOME"] = sysconfig.get_path("data") + + return env + + +@dataclasses.dataclass(frozen=True) +class CUDAGraphWrapperMetadata: + """ + Metadata for Customized CUDAGraphWrapper. + + Currently assumes there is 1 dynamo graph and will extend to + multiple graphs in the future. + """ + + # The number of partitions that are cudagraphable. + num_partitions: int + + # Index of the current partition. + partition_index: int + + +PartitionFnType = Callable[..., Any] +CUDAGraphWrapperType = Callable[ + [PartitionFnType, CUDAGraphWrapperMetadata], PartitionFnType +] + + +# only incremented by user call of mark_step_begin +class CUDAGraphWrapper: + wrapper: Optional[CUDAGraphWrapperType] = None + + +# A customized partition wrappers from users. Interface should be: +# +# def wrapper(fn: PartitionFnType, metadata: CUDAGraphWrapperMetadata) -> PartitionFnType +# +# Inductor generates N wrapper functions for N partition functions, and mechanically wrap +# each partition fn with the generated wrapper function. Users need to handle all details +# such as static inputs, dynamic shapes, etc. +# Users could customize the wrapper based on the metadata. One example is to have special +# handle for the first and last wrapper function. +# +# Warning: This API is unstable and may change in the future. +_unstable_customized_partition_wrapper = CUDAGraphWrapper() + + +def set_customized_partition_wrappers(wrapper: CUDAGraphWrapperType) -> None: + _unstable_customized_partition_wrapper.wrapper = wrapper + + +def snode_args_kwargs(snode: BaseSchedulerNode) -> tuple[list[Any], dict[str, Any]]: + args = snode.node.inputs # type: ignore[union-attr] + args = snode.node.fill_non_provided_args( # type: ignore[union-attr] + [*args, *snode.node.constant_args], # type: ignore[union-attr] + snode.node.kwargs, # type: ignore[union-attr] + ) + kwargs = snode.node.kwargs # type: ignore[union-attr] + flat_args, flat_args_pytree_spec = pytree.tree_flatten((args, kwargs)) + + def _is_tensor_ir(x) -> bool: # type: ignore[no-untyped-def] + return isinstance(x, torch._inductor.ir.IRNode) and not isinstance( + x, torch._inductor.ir.GeneratorState + ) + + flat_args = [ + torch._inductor.ir.ir_node_to_tensor(a, guard_shape=False) + if _is_tensor_ir(a) + else a + for a in flat_args + ] + + def _tensor(size, dtype, device) -> torch.Tensor: # type: ignore[no-untyped-def] + return torch.empty(size, dtype=dtype, device=device) + + def to_real_tensor(e: Any) -> Any: + if not isinstance(e, torch.Tensor): + return e + out = _tensor(e.size(), e.dtype, e.device) + return out + + flat_args = [to_real_tensor(a) for a in flat_args] + args, kwargs = pytree.tree_unflatten(flat_args, flat_args_pytree_spec) + return args, kwargs + + +def is_nonfreeable_buffers(dep: Dep) -> bool: + from .virtualized import V + + dep_name = dep.name + # Subgraphs have a prefix for the name, cleanup the prefix + # before checking for known strings. + if V.graph.name: + dep_name = dep_name.removeprefix(V.graph.name + "_") + return dep_name.startswith( + ("primals_", "arg", "fwd_rng_state", "bwd_rng_state", "tangents") + ) + + +# Make sure to also include your jinja templates within torch_package_data in setup.py, or this function won't be able to find them +def load_template(name: str, template_dir: Path) -> str: + """Load a template file and return its content.""" + with open(template_dir / f"{name}.py.jinja") as f: + return f.read() + + +def should_fallback_by_default(node: torch.fx.Node) -> bool: + """Decide whether fallback for a node. This is only used in inductor lite mode.""" + target = node.target + + assert isinstance( + target, (torch._ops.OpOverload, torch._ops.HigherOrderOperator) + ), f"Expected OpOverload or HigherOrderOperator, but found {type(target)}" + + if not config.fallback_by_default: + return False + + # some ops need special handle due to dynamic shapes. we can avoid + # fallback if they do not impact numerics. + skip_fallback_due_to_dynamic_shape = OrderedSet( + [ + torch.ops.aten._assert_scalar.default, + torch.ops.aten.lift_fresh_copy.default, + ] + ) + + if target in skip_fallback_due_to_dynamic_shape: + return False + + # Most hops have registered lowering. We should follow the lowering and not fallback. + # However, in rare cases, hops may not register lowering, such as + # torch.ops.higher_order.triton_kernel_wrapper_functional. We should fallback for + # these hops. + fallback_hops = OrderedSet( + [torch.ops.higher_order.triton_kernel_wrapper_functional] + ) + + if isinstance(target, torch._ops.HigherOrderOperator): + return target in fallback_hops + + return not _needs_inductor_compile(node) + + +# Collective operation names for specialized benchmarking +COLLECTIVE_OPS = OrderedSet( + [ + "torch.ops._c10d_functional.all_reduce.default", + "torch.ops._c10d_functional.all_reduce_.default", + "torch.ops._c10d_functional.all_gather_into_tensor.default", + "torch.ops._c10d_functional.reduce_scatter_tensor.default", + "torch.ops._c10d_functional.all_to_all_single.default", + "torch.ops._c10d_functional_autograd.all_reduce.default", + "torch.ops._c10d_functional_autograd.all_gather_into_tensor.default", + "torch.ops._c10d_functional_autograd.reduce_scatter_tensor.default", + "torch.ops._c10d_functional_autograd.all_to_all_single.default", + ] +) + + +def is_collective_op(op_name: str) -> bool: + """Check if an operation is a collective operation.""" + return op_name in COLLECTIVE_OPS diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/virtualized.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/virtualized.py new file mode 100644 index 0000000000000000000000000000000000000000..f45e372e2b3a3d9adfeba23d5fb80a26b20cbe7c --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/virtualized.py @@ -0,0 +1,448 @@ +# mypy: allow-untyped-defs +""" +This file provides a number of "global" variables/handlers that are actually +thread local and dynamically scoped, with Inductor patching them to various +implementations depending on the situation. + +These handlers are interacted with in a fairly stylized way. Typically, +we will import V from this module:: + + from .virtualized import V + +Various handlers are accessible as attributes on this module; for example, +you might access ``V.graph.sizevars.size_hint`` to resolve a size hint associated with +a number. + +There are a few distinct usage patterns for virtualized global variables: + +1. Implicit argument passing. Examples: ``V.current_node``, ``V.aot_compilation``. + Use ``V.set_current_node`` to change what the current node is while we're + executing some region of code, so code inside that region can query ``V.current_node`` + to find out what it is. This is often more convenient than manually threading + the current node as an argument through all call stacks. + +2. Per-compilation global state. Examples: ``V.fake_mode``, ``V.graph``. For a + given ``compile_fx`` invocation, these typically don't change, but they are + associated with some internal state so they cannot just be global functions. + We install these objects at the beginning of compilation and then you can + conveniently access them without having to pass them around. + +3. Alternate define-by-run interpretations. Examples: ``V.ops``, ``V.kernel``. + A commonly used IR in Inductor is define-by-run: instead of maintaining + explicit syntax data structures, we instead represent loop bodies as + callable functions, which internally invoke operations defined on + ``V.ops``. To perform semantic analysis, print or code generate these + operations, we dynamically patch ``V.ops`` with an alternate handler with + the intended semantics and then run the callable function. For example, to + extract out a traditional (FX) graph representation of the define-by-run + IR, simply install a handler that records each ``ops`` call to a graph. + + TODO: Define a parent class / protocol that defines all of the operations + V.ops is expected to support. + +It is typically an error to access a virtualized global without having installed +an appropriate handler (you will get a NullHandler), although in some cases we +provide a default implementation. + +One last thing: although most virtualized globals are accessed via ``V``, ``ops`` is +ubiquitous enough to have its own top level variable, so you will typically see +``ops.constant(...)`` rather than ``V.ops.constant(...)``. In fact, these are not +equivalent; the former interface supports arithmetic overloads like ``x + y`` +instead of forcing ``ops.add(x, y)``, so it should be preferred. + +Some operators are seemingly unused, but they are implicitly used by ops_wrapper. +In particular, we typically have an operator for every basic pointwise PyTorch operation +supported. +""" + +from __future__ import annotations + +from contextlib import AbstractContextManager, contextmanager +from threading import local +from typing import Any, cast, Generic, TYPE_CHECKING, TypeVar, Union + +from torch.utils._ordered_set import OrderedSet + +from .ops_handler import ( # noqa: F401 + DefaultHandler, + KernelFormatterHandler, + MockHandler, + OpsHandler, + ReductionType, + StoreMode, + WrapperHandler, +) + + +if TYPE_CHECKING: + from collections.abc import Callable + + import torch + from torch._inductor.choices import InductorChoices + from torch._inductor.codegen.cpp_utils import LocalBufferContext + from torch._inductor.debug import DebugContext + from torch._inductor.graph import GraphLowering + from torch._inductor.ir import ExternKernelNode + from torch._inductor.loop_body import InterpreterShim + from torch._subclasses import FakeTensorMode + + from .distributed_autotune import _DistributedAutotuneState + +threadlocal = local() + +T = TypeVar("T") + + +class NullHandler: + """ + Sentinel indicating that a global variable is unset ala None. Typically, + attempting to access the global variable before it's set is an error, but with + NullHandler it won't fail until you try to access an attribute on it. + """ + + +# If a virtualized value is set to _PoisonedVirtual then any attempt to get the +# value will result an an exception being raised. This is useful if we want to +# trap uninitialized reads of virtualized globals - for example when compiling +# in a subprocess we don't want the child reading globals that weren't copied +# from the parent. +_PoisonedVirtual = object() + + +class Virtualized(Generic[T]): + """ + Implements a global variable that redirects via thread local variable + (NB: construct this class to create the global variable; this is not + a singleton class!) + + This allows us to swap in different op implementations in codegen. + + NB: Despite the fact that we typically call these "handlers" (e.g., NullHandler is + the default value of the variable), we sometimes use these variables to + store other things, like booleans. + """ + + def __init__(self, vname: str, default: Union[Callable[[], T], type[NullHandler]]): + self._vname = vname + self._key: str = f"__torchinductor_{vname}" + self._default = default + + def _set_handler(self, value: T) -> AbstractContextManager[None]: + prior = self._get_handler(False) + setattr(threadlocal, self._key, value) + + @contextmanager + def ctx(): + try: + yield + finally: + self._set_handler(prior) + + return ctx() + + def _get_handler(self, check_poisoned: bool = True) -> T: + try: + value = getattr(threadlocal, self._key) + if check_poisoned and value is _PoisonedVirtual: + raise RuntimeError( + f"Attempt to use poisoned virtualized value '{self._vname}'." + ) + return value + except AttributeError: + # TODO: To be honest, I feel we probably should just error in this + # case, instead of making a null handler that will probably error + # when you getattr on it + return self._default() # type: ignore[return-value] + + def __getattr__(self, name: str) -> Any: + return getattr(self._get_handler(), name) + + +class NullKernelHandler(NullHandler): + """ + We need access `V.kernel.removed_buffers` in DeferredLine class when there + is no kernel in the context. This happens when codegening the wrapper. + Initialize `removed_buffers` and `inplaced_to_remove` explicitly so we don't + need call 'getattr' with default value which is error prone to typo in + attribute name. + """ + + def __init__(self): + super().__init__() + self.removed_buffers = OrderedSet[Any]() + self.inplaced_to_remove = OrderedSet[Any]() + self.index_dtype = "tl.int64" + + def get_index_dtype_as_torch_dtype(self): + import torch + + if self.index_dtype == "tl.int64": + return torch.int64 + elif self.index_dtype == "tl.int32": + return torch.int32 + else: + raise ValueError(f"Unknown dtype: {self.index_dtype}") + + +_ops: Virtualized[OpsHandler[Any]] = Virtualized( + "ops", cast(type[OpsHandler[Any]], MockHandler) +) +_graph: Virtualized[GraphLowering] = Virtualized("graph", NullHandler) +_extern_kernel_nodes: Virtualized[list[ExternKernelNode]] = Virtualized( + "extern_kernel_nodes", NullHandler +) +_real_inputs: Virtualized[list[torch.Tensor]] = Virtualized("real_inputs", NullHandler) +_fake_mode: Virtualized[FakeTensorMode] = Virtualized("fake_mode", NullHandler) +_kernel: Virtualized[NullKernelHandler] = Virtualized( + "kernel", NullKernelHandler +) # TODO: improve type +_debug: Virtualized[DebugContext] = Virtualized("debug", NullHandler) +_interpreter: Virtualized[InterpreterShim] = Virtualized("interpreter", NullHandler) +_aot_compilation: Virtualized[bool] = Virtualized("aot_compilation", NullHandler) +_current_node: Virtualized[torch.fx.Node] = Virtualized("current_node", NullHandler) +_local_buffer_context: Virtualized[LocalBufferContext] = Virtualized( + "local_buffer_context", NullHandler +) +_distributed_autotune_state: Virtualized[_DistributedAutotuneState] = Virtualized( + "distributed_autotune_state", NullHandler +) + + +def _choices_default(): + """ + Lazy init the global choices handler + + We virtualize InductorChoices to allow changing inductor heuristics from out of tree. + """ + from torch._inductor import config + from torch._inductor.choices import InductorChoices + + if config.inductor_choices_class is not None: + rv = config.inductor_choices_class() + else: + rv = InductorChoices() + setattr(threadlocal, _choices._key, rv) + return rv + + +_choices: Virtualized[InductorChoices] = Virtualized("choices", _choices_default) + + +class OpsValue: + """The return type of most ops calls. + + This exists so we can overload magic methods, and write mathematical + expressions much more fluently. So instead of + + ops.add(ops.mul(ops.mul(ops.sub(ops.mul(_Ap2, x), _Ap3), x), x), _1) + + we can write + + (_Ap2 * x - _Ap3) * x * x + _1 + + """ + + value: Any + + def __init__(self, value): + self.value = value + + def __str__(self): + return str(self.value) + + def __repr__(self): + return f"OpsValue({self.value!r})" + + def __add__(self, other): + return ops.add(self, other) + + def __mul__(self, other): + return ops.mul(self, other) + + def __sub__(self, other): + return ops.sub(self, other) + + def __neg__(self): + return ops.neg(self) + + def __truediv__(self, other): + return ops.truediv(self, other) + + def __floordiv__(self, other): + return ops.floordiv(self, other) + + def __mod__(self, other): + return ops.mod(self, other) + + def __pow__(self, other): + return ops.pow(self, other) + + def __lt__(self, other): + return ops.lt(self, other) + + def __le__(self, other): + return ops.le(self, other) + + def __eq__(self, other): + return ops.eq(self, other) + + def __ne__(self, other): + return ops.ne(self, other) + + def __gt__(self, other): + return ops.gt(self, other) + + def __ge__(self, other): + return ops.ge(self, other) + + def __and__(self, other): + return ops.bitwise_and(self, other) + + def __or__(self, other): + return ops.bitwise_or(self, other) + + def __xor__(self, other): + return ops.bitwise_xor(self, other) + + def __invert__(self): + return ops.bitwise_not(self) + + def __rshfit__(self, n): + return ops.bitwise_right_shift(self, n) + + def __lshift__(self, n): + return ops.bitwise_left_shift(self, n) + + +class OpsWrapper(DefaultHandler): + """This wraps any returned IR values into an `OpsValue` instance, so that we + can overload the magic methods for writing mathematical expressions fluently. + """ + + def _default(self, name: str, args: tuple[Any, ...], kwargs: dict[str, Any]) -> Any: + new_args = [OpsWrapper._unwrap(a) for a in args] + new_kwargs = {k: OpsWrapper._unwrap(v) for k, v in kwargs.items()} + return OpsWrapper._wrap(getattr(_ops, name)(*new_args, **new_kwargs)) + + @staticmethod + def _unwrap(x): + if isinstance(x, (list, tuple)): + return tuple(OpsWrapper._unwrap(v) for v in x) + if isinstance(x, OpsValue): + return x.value + return x + + @staticmethod + def _wrap(x): + if isinstance(x, (list, tuple)): + return tuple(OpsValue(v) for v in x) + return OpsValue(x) + + @staticmethod + def indirect_indexing(index, size, check=True, wrap_neg=True): + # Returns a sympy value, not IR value + index = OpsWrapper._unwrap(index) + return _ops.indirect_indexing(index, size, check, wrap_neg) + + +ops: OpsHandler[Any] = OpsWrapper() + + +class _V: + MockHandler = MockHandler + KernelFormatterHandler = KernelFormatterHandler + WrapperHandler = WrapperHandler + + set_ops_handler: Callable[[OpsHandler[Any]], AbstractContextManager[None]] = ( + _ops._set_handler + ) + get_ops_handler: Callable[[], OpsHandler[Any]] = _ops._get_handler + set_graph_handler: Callable[[GraphLowering], Any] = _graph._set_handler + set_extern_kernel_nodes: Callable[[list[ExternKernelNode]], Any] = ( + _extern_kernel_nodes._set_handler + ) + set_real_inputs: Callable[[Any], Any] = _real_inputs._set_handler + get_real_inputs: Callable[[], Any] = _real_inputs._get_handler + set_fake_mode: Callable[[Any], Any] = _fake_mode._set_handler + get_fake_mode: Callable[[], Any] = _fake_mode._get_handler + set_kernel_handler: Callable[[Any], Any] = _kernel._set_handler + set_debug_handler: Callable[[Any], Any] = _debug._set_handler + set_interpreter_handler: Callable[[Any], Any] = _interpreter._set_handler + set_aot_compilation: Callable[[bool], Any] = _aot_compilation._set_handler + get_aot_compilation: Callable[[], Any] = _aot_compilation._get_handler + set_current_node: Callable[[Any], Any] = _current_node._set_handler + get_current_node: Callable[[], Any] = _current_node._get_handler + set_local_buffer_context: Callable[[Any], Any] = _local_buffer_context._set_handler + get_local_buffer_context: Callable[[], Any] = _local_buffer_context._get_handler + set_choices_handler: Callable[[Any], Any] = _choices._set_handler + set_distributed_autotune_state: Callable[[Any], Any] = ( + _distributed_autotune_state._set_handler + ) + get_distributed_autotune_state: Callable[[], Any] = ( + _distributed_autotune_state._get_handler + ) + + @property + def ops(self) -> OpsHandler[Any]: + """The operator handler specific to the current codegen task""" + return _ops._get_handler() + + @property + def graph(self) -> GraphLowering: + """The graph currently being generated""" + return _graph._get_handler() + + @property + def extern_kernel_nodes(self) -> list[ExternKernelNode]: + """ + The extern_kernel_nodes needed for the entire graph, including the + subgraphs. + See `ProxyExecutor Design Note` in ir.py for more details + """ + return _extern_kernel_nodes._get_handler() + + @property + def real_inputs(self): + """non-fake example inputs""" + return _real_inputs._get_handler() + + @property + def fake_mode(self): + """The graph currently being generated""" + return _fake_mode._get_handler() + + @property + def kernel(self): + """The kernel currently being generated""" + return _kernel._get_handler() + + @property + def debug(self): + return _debug._get_handler() + + @property + def interpreter(self): + return _interpreter._get_handler() + + @property + def aot_compilation(self): + return _aot_compilation._get_handler() is True + + @property + def current_node(self): + return _current_node._get_handler() + + @property + def local_buffer_context(self): + return _local_buffer_context._get_handler() + + @property + def choices(self) -> InductorChoices: + return _choices._get_handler() + + @property + def distributed_autotune_state(self): + return _distributed_autotune_state._get_handler() + + +V = _V() diff --git a/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/wrapper_benchmark.py b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/wrapper_benchmark.py new file mode 100644 index 0000000000000000000000000000000000000000..56adde809079f7083e49e5c1fbe32fb2895ac73d --- /dev/null +++ b/miniconda3/envs/ladir/lib/python3.10/site-packages/torch/_inductor/wrapper_benchmark.py @@ -0,0 +1,521 @@ +import argparse +import datetime +import tempfile +from collections import defaultdict +from dataclasses import dataclass +from types import ModuleType +from typing import Any, Optional, Protocol + +import torch +from torch.autograd import DeviceType +from torch.utils._ordered_set import OrderedSet + +from .runtime.benchmarking import benchmarker +from .runtime.runtime_utils import create_bandwidth_info_str, get_num_bytes + + +class BenchmarkCallableType(Protocol): + def __call__(self, times: int, repeat: int) -> float: ... + + +_kernel_category_choices = [ + "foreach", + "persistent_reduction", + "pointwise", + "reduction", + "split_scan", + "template", +] + + +def get_kernel_category_by_source_code(src_code: str) -> str: + """ + Similar to get_kernel_category but use the source code. Call this API + if we have not compile the src_code to module yet. + """ + choices = [ + ch for ch in _kernel_category_choices if f"@triton_heuristics.{ch}" in src_code + ] + if len(choices) == 1: + return choices[0] + else: + return "unknown" + + +def get_kernel_category(kernel_mod: ModuleType) -> str: + """ + Given the module defining a triton kernel, return the category of the kernel. + Category can be one of: + - pointwise + - reduction + - persistent_reduction + + Currently we simply decide the category depending on what decorator is imported + by the kernel. + """ + choices = [ch for ch in _kernel_category_choices if ch in kernel_mod.__dict__] + if len(choices) == 1: + return choices[0] + else: + return "unknown" + + +def get_triton_kernel(mod: ModuleType): # type: ignore[no-untyped-def] + from torch._inductor.runtime.triton_heuristics import CachingAutotuner + + cand_list = [ + v + for k, v in mod.__dict__.items() + if k.startswith("triton_") and isinstance(v, CachingAutotuner) + ] + assert len(cand_list) == 1 + return cand_list[0] + + +def benchmark_all_kernels( + benchmark_name: str, benchmark_all_configs: Optional[dict[Any, Any]] +) -> None: + """ + An experimental API used only when config.benchmark_kernel is true. + + Run the kernel benchmarks for all the kernels cached in PyCodeCache. + Used in the compiled modules. + + Put this method here rather than codegen it for convenience since its implementation + does not change based on different graph modules being compiled. + """ + from torch._inductor.codecache import PyCodeCache + + nfound = 0 + for kernel_mod in PyCodeCache.modules: + kernel_key = kernel_mod.key + if not hasattr(kernel_mod, "get_args") or not hasattr(kernel_mod, "call"): + continue + + triton_kernel = get_triton_kernel(kernel_mod) + device_type = triton_kernel.device_props.type + kernel_category = get_kernel_category(kernel_mod) + args = kernel_mod.get_args() + num_in_out_ptrs = len( + [ + arg_name + for arg_name in triton_kernel.fn.arg_names + if arg_name.startswith("in_out_ptr") + ] + ) + num_gb = triton_kernel.inductor_meta.get("kernel_num_gb", None) + if num_gb is None: + num_gb = get_num_bytes(*args, num_in_out_args=num_in_out_ptrs) / 1e9 + + def get_info_str( + ms: float, + n_regs: Optional[Any], + n_spills: Optional[Any], + shared: Optional[Any], + prefix: str = "", + ) -> str: + if not any(x is None for x in [n_regs, n_spills, shared]): + kernel_detail_str = ( + f" {n_regs:3} regs {n_spills:3} spills {shared:8} shared mem" + ) + else: + kernel_detail_str = "" + + gb_per_s = num_gb / (ms / 1e3) + return create_bandwidth_info_str( + ms, num_gb, gb_per_s, prefix=prefix, suffix=kernel_detail_str + ) + + kernel_desc = ( + f"{benchmark_name:20} {kernel_category[:3].upper()} {kernel_key[:10]}" + ) + if benchmark_all_configs: + assert hasattr(kernel_mod, "benchmark_all_configs") + bench_result = kernel_mod.benchmark_all_configs(args) + print(kernel_desc) + for launcher, ms in bench_result.items(): + print( + f" {get_info_str(ms, launcher.n_regs, launcher.n_spills, launcher.shared)} @ {launcher.config}" + ) + else: + ms = benchmarker.benchmark( + lambda: kernel_mod.call(args), + device=device_type, + rep=40, + ) + assert len(triton_kernel.launchers) == 1, ( + "Autotuner should have selected the best config" + ) + launcher = triton_kernel.launchers[0] + print( + get_info_str( + ms, + launcher.n_regs, + launcher.n_spills, + launcher.shared, + prefix=f"{kernel_desc} ", + ) + ) + + nfound += 1 + if nfound == 0: + print( + "No kernel with benchmark functionality found. Make sure you run inductor with config.benchmark_kernel being True" + ) + + +@dataclass +class ProfileEvent: + category: str + key: str + self_device_time_ms: float + # the benchmark is run multiple times and we average the count across all the + # runs. It should be an integer but define a float just in case. + count: float + + +def parse_profile_event_list( + benchmark_name: str, + event_list: torch.autograd.profiler_util.EventList, + wall_time_ms: float, + nruns: int, + device_name: str, +) -> None: + """ + Parse and generate a report for an event_list. + """ + + def get_self_device_time( + ev: torch.autograd.profiler_util.EventList, + ) -> float: + """ + ev.self_device_time_total is in microsecond. Convert to millisecond. + """ + return ev.self_device_time_total / 1000 / nruns # type: ignore[attr-defined] + + all_events: dict[str, list[ProfileEvent]] = defaultdict(list) + + def add_event( + ev: torch.autograd.profiler_util.EventList, + category: str, + ) -> None: + profile_ev = ProfileEvent( + category=category, + key=ev.key, # type: ignore[attr-defined] + self_device_time_ms=get_self_device_time(ev), + count=ev.count / nruns, # type: ignore[operator] # average across all runs + ) + all_events[category].append(profile_ev) + + for ev in event_list: + assert not ev.is_legacy, "Don't support the legacy profiler" + if ev.device_type == DeviceType.CPU: + # ignore the event on CPU side + continue + + category = "unknown" + if ev.key.startswith("triton_"): + if ev.key.startswith("triton_poi"): + category = "triton_pointwise" + elif ev.key.startswith("triton_red"): + category = "triton_reduction" + elif ev.key.startswith("triton_per"): + category = "triton_persistent_reduction" + else: + category = "triton_unknown" + + add_event(ev, category) + + def report_category(category: str, profile_events: list[ProfileEvent]) -> float: + if not device_name: + return 0.0 + + from tabulate import tabulate + + profile_events.sort(key=lambda ev: ev.self_device_time_ms, reverse=True) + + rows = [] + total_time = 0.0 + print(f"\n == {category} category kernels == ") + for ev in profile_events: + total_time += ev.self_device_time_ms + percent = f"{ev.self_device_time_ms / wall_time_ms * 100:.2f}%" + rows.append([ev.key[:120], ev.self_device_time_ms, ev.count, percent]) + rows.append( + ["Total", total_time, "", f"{total_time / wall_time_ms * 100:.2f}%"] + ) + print( + tabulate( + rows, + headers=[ + "Kernel", + f"Self {device_name.upper()} TIME (ms)", + "Count", + "Percent", + ], + ) + ) + return total_time + + def report() -> None: + category_list = [ + "triton_pointwise", + "triton_reduction", + "triton_persistent_reduction", + "triton_unknown", + "unknown", + ] + assert OrderedSet(all_events.keys()).issubset(OrderedSet(category_list)), ( + f"{list(all_events.keys())}" + ) + + per_category_wall_time = {} + total_device_ms = 0.0 + for category in category_list: + if category in all_events: + _time = report_category(category, all_events[category]) + per_category_wall_time[category] = _time + total_device_ms += _time + + device_busy_percent = f"{total_device_ms / wall_time_ms * 100:.2f}%" + if device_name: + print( + f"\nPercent of time when {device_name.upper()} is busy: {device_busy_percent}" + ) + else: + print("No device detected") + + print(f"Total wall time {wall_time_ms:.3f} ms") + + # output such a line so we can gather such line from all compiled modules from all + # benchmarks and tabulate it! + # Columns: benchmark_name, pointwise_percent, reduction_percent, persistent_reduction_percent, + # unknown_category_percent, device_busy_percent, wall_time_ms + tabulate_line = f"Output for tabulate: {benchmark_name}" + for category in category_list: + percent = ( + f"{per_category_wall_time.get(category, 0.0) / wall_time_ms * 100:.2f}%" + ) + tabulate_line += f", {percent}" + tabulate_line += f", {device_busy_percent}, {wall_time_ms:.3f}ms" + + print(tabulate_line) + + report() + + +PROFILE_DIR = tempfile.gettempdir() +PROFILE_PATH = f"{PROFILE_DIR}/compiled_module_profile.json" + + +def perf_profile( + wall_time_ms: float, + times: int, + repeat: int, + benchmark_name: str, + benchmark_compiled_module_fn: BenchmarkCallableType, +) -> None: + with torch.profiler.profile(record_shapes=True) as p: + benchmark_compiled_module_fn(times=times, repeat=repeat) + + path = PROFILE_PATH + p.export_chrome_trace(path) + print(f"Profiling result for a compiled module of benchmark {benchmark_name}:") + print(f"Chrome trace for the profile is written to {path}") + event_list = p.key_averages(group_by_input_shape=True) + print(event_list.table(sort_by="self_device_time_total", row_limit=10)) + parse_profile_event_list( + benchmark_name, event_list, wall_time_ms, times * repeat, p.use_device or "" + ) + + +def ncu_analyzer( + benchmark_name: str, + benchmark_compiled_module_fn: BenchmarkCallableType, + args: argparse.Namespace, +) -> None: + import inspect + import os + import subprocess + + kernel_regex = args.ncu_kernel_regex + metrics = args.ncu_metrics + + module_file = inspect.getfile(benchmark_compiled_module_fn) + module_dir = os.path.dirname(module_file) + module_name = os.path.splitext(os.path.basename(module_file))[0] + + ncu_dir = tempfile.gettempdir() + timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S") + ncu_output = os.path.join(ncu_dir, f"ncu_output_{timestamp}.ncu-rep") + python_cmd = ( + f"""import sys; sys.path.insert(0, '{module_dir}'); """ + f"""from {module_name} import benchmark_compiled_module; """ + """benchmark_compiled_module(times=1, repeat=1)""" + ) + + ncu_cmd = [ + "ncu", + "--target-processes", + "all", + "--replay-mode", + "kernel", + "--kernel-name-base", + "function", + "--print-units", + "base", + "--import-source", + "yes", + "--force-overwrite", + "--export", + ncu_output, + ] + + if kernel_regex: + ncu_cmd.extend(["--kernel-name", f"regex:{kernel_regex}"]) + + if metrics: + ncu_cmd.extend(["--metrics", metrics]) + else: + ncu_cmd.extend(["--set", "full"]) + + ncu_cmd.extend( + [ + "python", + "-c", + python_cmd, + ] + ) + + try: + subprocess.run(ncu_cmd, check=True) + print(f"\nNCU profiling results for benchmark {benchmark_name}:") + print(f"NCU report has been written to {ncu_output}") + + except subprocess.CalledProcessError as e: + print(f"NCU profiling failed with error: {e}") + return + + +def collect_memory_snapshot( + benchmark_compiled_module_fn: BenchmarkCallableType, +) -> None: + assert torch.cuda.is_available() + + torch.cuda.memory._record_memory_history(max_entries=100000) + benchmark_compiled_module_fn(times=10, repeat=1) # run 10 times + snapshot_path = f"{tempfile.gettempdir()}/memory_snapshot.pickle" + torch.cuda.memory._dump_snapshot(snapshot_path) + torch.cuda.memory._record_memory_history(enabled=None) + print(f"The collect memory snapshot has been written to {snapshot_path}") + + +# With AOTAutograd cache, we directly call the compiled module. So prevent +# Dynamo from reentering +@torch.compiler.disable # type: ignore[misc] +def compiled_module_main( + benchmark_name: str, benchmark_compiled_module_fn: BenchmarkCallableType +) -> None: + """ + This is the function called in __main__ block of a compiled module. + """ + import argparse + + parser = argparse.ArgumentParser() + parser.add_argument( + "--benchmark-kernels", + "-k", + action="store_true", + help="Whether to benchmark each individual kernels", + ) + parser.add_argument( + "--benchmark-all-configs", + "-c", + action="store_true", + help="Whether to benchmark each individual config for a kernel", + ) + parser.add_argument( + "--profile", + "-p", + action="store_true", + help="Whether to profile the compiled module", + ) + parser.add_argument( + "--cuda-memory-snapshot", + action="store_true", + help=""" + Whether to collect CUDA memory snapshot. Refer to + "https://pytorch.org/blog/understanding-gpu-memory-1/ + for details about how to visualize the collected snapshot + """, + ) + parser.add_argument( + "--ncu", + action="store_true", + help="Whether to run ncu analysis", + ) + parser.add_argument( + "--ncu-kernel-regex", + type=str, + default=None, + help=( + "Filter kernels profiled by NCU using a regex (e.g., '^triton_.*'). " + "Maps to '--kernel-name regex:'. " + "If None, NCU will profile all kernels." + ), + ) + parser.add_argument( + "--ncu-metrics", + type=str, + default=None, + help=( + "Comma-separated list of NCU metrics to collect (e.g., 'dram__bytes.sum.per_second'). " + "If None, NCU will use '--set full'." + ), + ) + parser.add_argument( + "--times", + type=int, + default=10, + help="Number of times to run each benchmark iteration", + ) + parser.add_argument( + "--repeat", + type=int, + default=10, + help="Number of repetitions of each benchmark run", + ) + + args = parser.parse_args() + + if args.benchmark_kernels: + benchmark_all_kernels(benchmark_name, args.benchmark_all_configs) + else: + times = args.times + repeat = args.repeat + + if torch.cuda.is_available(): + torch.cuda.reset_peak_memory_stats() + wall_time_ms = benchmark_compiled_module_fn(times=times, repeat=repeat) * 1000 + + if torch.cuda.is_available(): + peak_mem = torch.cuda.max_memory_allocated() + print(f"Peak GPU memory usage {peak_mem / 1e6:.3f} MB") + + if torch.cuda.is_available() and args.cuda_memory_snapshot: + collect_memory_snapshot(benchmark_compiled_module_fn) + + if args.profile: + perf_profile( + wall_time_ms, + times, + repeat, + benchmark_name, + benchmark_compiled_module_fn, + ) + if args.ncu: + ncu_analyzer( + benchmark_name, + benchmark_compiled_module_fn, + args=args, + )