Upload gptq_marlin.py
Browse files- gptq_marlin.py +643 -0
gptq_marlin.py
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|
| 1 |
+
# SPDX-License-Identifier: Apache-2.0
|
| 2 |
+
|
| 3 |
+
from typing import Any, Callable, Dict, List, Optional, Set, Union
|
| 4 |
+
|
| 5 |
+
import torch
|
| 6 |
+
|
| 7 |
+
import vllm.model_executor.layers.fused_moe # noqa
|
| 8 |
+
from vllm import _custom_ops as ops
|
| 9 |
+
from vllm.logger import init_logger
|
| 10 |
+
from vllm.model_executor.layers.fused_moe.layer import (
|
| 11 |
+
FusedMoE, FusedMoEMethodBase, FusedMoeWeightScaleSupported)
|
| 12 |
+
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
| 13 |
+
set_weight_attrs)
|
| 14 |
+
from vllm.model_executor.layers.quantization.base_config import (
|
| 15 |
+
QuantizationConfig, QuantizeMethodBase)
|
| 16 |
+
from vllm.model_executor.layers.quantization.kernels.mixed_precision import (
|
| 17 |
+
MPLinearLayerConfig, choose_mp_linear_kernel)
|
| 18 |
+
from vllm.model_executor.layers.quantization.utils import replace_parameter
|
| 19 |
+
from vllm.model_executor.layers.quantization.utils.gptq_utils import (
|
| 20 |
+
get_linear_quant_method)
|
| 21 |
+
from vllm.model_executor.layers.quantization.utils.marlin_utils import (
|
| 22 |
+
check_marlin_supported, check_moe_marlin_supports_layer,
|
| 23 |
+
marlin_moe_permute_scales, marlin_repeat_scales_on_all_ranks,
|
| 24 |
+
verify_marlin_supported)
|
| 25 |
+
from vllm.model_executor.parameter import (ChannelQuantScaleParameter,
|
| 26 |
+
GroupQuantScaleParameter,
|
| 27 |
+
PackedColumnParameter,
|
| 28 |
+
PackedvLLMParameter,
|
| 29 |
+
RowvLLMParameter)
|
| 30 |
+
from vllm.platforms import current_platform
|
| 31 |
+
from vllm.scalar_type import scalar_types
|
| 32 |
+
|
| 33 |
+
logger = init_logger(__name__)
|
| 34 |
+
|
| 35 |
+
|
| 36 |
+
class GPTQMarlinConfig(QuantizationConfig):
|
| 37 |
+
"""Config class for GPTQ Marlin"""
|
| 38 |
+
|
| 39 |
+
# (num_bits, is_sym) -> quant_type
|
| 40 |
+
TYPE_MAP = {
|
| 41 |
+
(4, True): scalar_types.uint4b8,
|
| 42 |
+
(8, True): scalar_types.uint8b128,
|
| 43 |
+
}
|
| 44 |
+
|
| 45 |
+
def __init__(self, weight_bits: int, group_size: int, desc_act: bool,
|
| 46 |
+
is_sym: bool, lm_head_quantized: bool,
|
| 47 |
+
dynamic: Dict[str, Dict[str, Union[int, bool]]],
|
| 48 |
+
full_config: Dict[str, Any]) -> None:
|
| 49 |
+
super().__init__()
|
| 50 |
+
if desc_act and group_size == -1:
|
| 51 |
+
# In this case, act_order == True is the same as act_order == False
|
| 52 |
+
# (since we have only one group per output channel)
|
| 53 |
+
desc_act = False
|
| 54 |
+
|
| 55 |
+
# GPTQModel use `dynamic` config property to allow per module
|
| 56 |
+
# quantization config so each module can be individually optimized.
|
| 57 |
+
# Format is Dict[str, Dict] where key is a regex string that can
|
| 58 |
+
# perform both positive ("+:" prefixed) or negative ("-:" prefixed)
|
| 59 |
+
# matching of a module.
|
| 60 |
+
# Default to positive match, override base quant config mode, if no
|
| 61 |
+
# prefix is used. Value is in dict format of field key and override
|
| 62 |
+
# value.
|
| 63 |
+
# Negative matching will skip quantization init for this module
|
| 64 |
+
# entirely:
|
| 65 |
+
# non-quantized inference. More details and quantization examples can be
|
| 66 |
+
# found at: https://github.com/ModelCloud/GPTQModel
|
| 67 |
+
# Example:
|
| 68 |
+
# # last 1/2 of the layers 10-21 has 8bit vs 4bit for 0-9
|
| 69 |
+
# # last 1/4 of the layers 16-21 has 8bit and group_size 64
|
| 70 |
+
# dynamic = {
|
| 71 |
+
# #`.*\.` matches the layers_node prefix
|
| 72 |
+
# # positive match layer 10-15
|
| 73 |
+
# r"+:.*\.(?:1[0-5])\..*": {"bits": 8,},
|
| 74 |
+
# # positive match layer 16-21
|
| 75 |
+
# r"+:.*\.(?:1[6-9]|20|21)\..*": {"bits": 8, "group_size": 64,},
|
| 76 |
+
# r"-:.*\.moe\..*": {}, # negative match (skip) all `moe` layers
|
| 77 |
+
# }
|
| 78 |
+
self.dynamic = dynamic
|
| 79 |
+
|
| 80 |
+
self.weight_bits = weight_bits
|
| 81 |
+
self.is_sym = is_sym
|
| 82 |
+
|
| 83 |
+
self.pack_factor = 32 // weight_bits # packed into int32
|
| 84 |
+
self.group_size = group_size
|
| 85 |
+
self.desc_act = desc_act
|
| 86 |
+
self.lm_head_quantized = lm_head_quantized
|
| 87 |
+
self.full_config = full_config
|
| 88 |
+
|
| 89 |
+
if (weight_bits, is_sym) not in self.TYPE_MAP:
|
| 90 |
+
raise ValueError("Unsupported quantization config: "
|
| 91 |
+
f"bits={weight_bits}, sym={is_sym}")
|
| 92 |
+
|
| 93 |
+
self.quant_type = self.TYPE_MAP[(weight_bits, is_sym)]
|
| 94 |
+
|
| 95 |
+
def __repr__(self) -> str:
|
| 96 |
+
return (f"GPTQMarlinConfig(quant_type={self.quant_type}, "
|
| 97 |
+
f"group_size={self.group_size}, "
|
| 98 |
+
f"desc_act={self.desc_act}, "
|
| 99 |
+
f"lm_head_quantized={self.lm_head_quantized}), "
|
| 100 |
+
f"dynamic={self.dynamic}")
|
| 101 |
+
|
| 102 |
+
@classmethod
|
| 103 |
+
def get_name(cls) -> str:
|
| 104 |
+
return "gptq_marlin"
|
| 105 |
+
|
| 106 |
+
@classmethod
|
| 107 |
+
def get_supported_act_dtypes(cls) -> List[torch.dtype]:
|
| 108 |
+
return [torch.half, torch.bfloat16]
|
| 109 |
+
|
| 110 |
+
@classmethod
|
| 111 |
+
def get_min_capability(cls) -> int:
|
| 112 |
+
return 80
|
| 113 |
+
|
| 114 |
+
@classmethod
|
| 115 |
+
def get_config_filenames(cls) -> List[str]:
|
| 116 |
+
return ["quantize_config.json"]
|
| 117 |
+
|
| 118 |
+
@classmethod
|
| 119 |
+
def from_config(cls, config: Dict[str, Any]) -> "GPTQMarlinConfig":
|
| 120 |
+
dynamic = cls.get_from_keys_or(config, ["dynamic"], default={})
|
| 121 |
+
dynamic = {} if dynamic is None else dynamic
|
| 122 |
+
|
| 123 |
+
weight_bits = cls.get_from_keys(config, ["bits"])
|
| 124 |
+
group_size = cls.get_from_keys(config, ["group_size"])
|
| 125 |
+
desc_act = cls.get_from_keys(config, ["desc_act"])
|
| 126 |
+
is_sym = cls.get_from_keys(config, ["sym"])
|
| 127 |
+
lm_head_quantized = cls.get_from_keys_or(config, ["lm_head"],
|
| 128 |
+
default=False)
|
| 129 |
+
return cls(weight_bits, group_size, desc_act, is_sym,
|
| 130 |
+
lm_head_quantized, dynamic, config)
|
| 131 |
+
|
| 132 |
+
@classmethod
|
| 133 |
+
def override_quantization_method(cls, hf_quant_cfg,
|
| 134 |
+
user_quant) -> Optional[str]:
|
| 135 |
+
can_convert = cls.is_gptq_marlin_compatible(hf_quant_cfg)
|
| 136 |
+
|
| 137 |
+
is_valid_user_quant = (user_quant is None or user_quant == "marlin"
|
| 138 |
+
or user_quant == "gptq_marlin")
|
| 139 |
+
|
| 140 |
+
if can_convert and is_valid_user_quant:
|
| 141 |
+
msg = ("The model is convertible to {} during runtime."
|
| 142 |
+
" Using {} kernel.".format(cls.get_name(), cls.get_name()))
|
| 143 |
+
logger.info(msg)
|
| 144 |
+
return cls.get_name()
|
| 145 |
+
|
| 146 |
+
if can_convert and user_quant == "gptq":
|
| 147 |
+
logger.info("Detected that the model can run with gptq_marlin"
|
| 148 |
+
", however you specified quantization=gptq explicitly,"
|
| 149 |
+
" so forcing gptq. Use quantization=gptq_marlin for"
|
| 150 |
+
" faster inference")
|
| 151 |
+
return None
|
| 152 |
+
|
| 153 |
+
def get_quant_method(self, layer: torch.nn.Module,
|
| 154 |
+
prefix: str) -> Optional["QuantizeMethodBase"]:
|
| 155 |
+
if isinstance(layer, FusedMoE):
|
| 156 |
+
from vllm.model_executor.layers.quantization.moe_wna16 import (
|
| 157 |
+
MoeWNA16Config)
|
| 158 |
+
if not check_moe_marlin_supports_layer(layer, self.group_size):
|
| 159 |
+
logger.warning(
|
| 160 |
+
f"Layer '{prefix}' is not supported by GPTQMoeMarlin. "
|
| 161 |
+
"Falling back to Moe WNA16 kernels.")
|
| 162 |
+
return MoeWNA16Config.from_config(
|
| 163 |
+
self.full_config).get_quant_method(layer, prefix)
|
| 164 |
+
return GPTQMarlinMoEMethod(self)
|
| 165 |
+
return get_linear_quant_method(self, layer, prefix,
|
| 166 |
+
GPTQMarlinLinearMethod)
|
| 167 |
+
|
| 168 |
+
@classmethod
|
| 169 |
+
def is_gptq_marlin_compatible(cls, quant_config: Dict[str, Any]):
|
| 170 |
+
quant_method = quant_config.get("quant_method", "").lower()
|
| 171 |
+
num_bits = quant_config.get("bits")
|
| 172 |
+
group_size = quant_config.get("group_size")
|
| 173 |
+
sym = quant_config.get("sym")
|
| 174 |
+
desc_act = quant_config.get("desc_act")
|
| 175 |
+
|
| 176 |
+
if not current_platform.is_cuda():
|
| 177 |
+
return False
|
| 178 |
+
|
| 179 |
+
if quant_method != "gptq":
|
| 180 |
+
return False
|
| 181 |
+
|
| 182 |
+
# Marlin conversion is only valid if required properties are found
|
| 183 |
+
if (num_bits is None or group_size is None or sym is None
|
| 184 |
+
or desc_act is None):
|
| 185 |
+
return False
|
| 186 |
+
|
| 187 |
+
if (num_bits, sym) not in cls.TYPE_MAP:
|
| 188 |
+
return False
|
| 189 |
+
|
| 190 |
+
return check_marlin_supported(quant_type=cls.TYPE_MAP[(num_bits, sym)],
|
| 191 |
+
group_size=group_size)
|
| 192 |
+
|
| 193 |
+
|
| 194 |
+
class GPTQMarlinLinearMethod(LinearMethodBase):
|
| 195 |
+
"""Linear method for GPTQ Marlin.
|
| 196 |
+
|
| 197 |
+
Args:
|
| 198 |
+
quant_config: The GPTQ Marlin quantization config.
|
| 199 |
+
"""
|
| 200 |
+
|
| 201 |
+
_kernel_backends_being_used: Set[str] = set()
|
| 202 |
+
|
| 203 |
+
def __init__(self, quant_config: GPTQMarlinConfig) -> None:
|
| 204 |
+
self.quant_config = quant_config
|
| 205 |
+
|
| 206 |
+
# Verify supported on platform.
|
| 207 |
+
verify_marlin_supported(quant_type=self.quant_config.quant_type,
|
| 208 |
+
group_size=self.quant_config.group_size)
|
| 209 |
+
|
| 210 |
+
def create_weights(
|
| 211 |
+
self,
|
| 212 |
+
layer: torch.nn.Module,
|
| 213 |
+
input_size_per_partition: int,
|
| 214 |
+
output_partition_sizes: List[int],
|
| 215 |
+
input_size: int,
|
| 216 |
+
output_size: int,
|
| 217 |
+
params_dtype: torch.dtype,
|
| 218 |
+
**extra_weight_attrs,
|
| 219 |
+
) -> None:
|
| 220 |
+
output_size_per_partition = sum(output_partition_sizes)
|
| 221 |
+
is_row_parallel = input_size != input_size_per_partition
|
| 222 |
+
weight_loader = extra_weight_attrs.get("weight_loader")
|
| 223 |
+
|
| 224 |
+
mp_linear_kernel_config = MPLinearLayerConfig(
|
| 225 |
+
full_weight_shape=(input_size, output_size),
|
| 226 |
+
partition_weight_shape=\
|
| 227 |
+
(input_size_per_partition, output_size_per_partition),
|
| 228 |
+
weight_type=self.quant_config.quant_type,
|
| 229 |
+
act_type=params_dtype,
|
| 230 |
+
group_size=self.quant_config.group_size,
|
| 231 |
+
zero_points=False,
|
| 232 |
+
has_g_idx=self.quant_config.desc_act
|
| 233 |
+
)
|
| 234 |
+
|
| 235 |
+
kernel_type = choose_mp_linear_kernel(mp_linear_kernel_config)
|
| 236 |
+
|
| 237 |
+
if kernel_type.__name__ not in self._kernel_backends_being_used:
|
| 238 |
+
logger.info("Using %s for GPTQMarlinLinearMethod",
|
| 239 |
+
kernel_type.__name__)
|
| 240 |
+
self._kernel_backends_being_used.add(kernel_type.__name__)
|
| 241 |
+
|
| 242 |
+
# Normalize group_size
|
| 243 |
+
if self.quant_config.group_size != -1:
|
| 244 |
+
group_size = self.quant_config.group_size
|
| 245 |
+
else:
|
| 246 |
+
group_size = input_size
|
| 247 |
+
|
| 248 |
+
# Determine sharding
|
| 249 |
+
if marlin_repeat_scales_on_all_ranks(self.quant_config.desc_act,
|
| 250 |
+
self.quant_config.group_size,
|
| 251 |
+
is_row_parallel):
|
| 252 |
+
# By setting scale_dim == None, weight_loader will
|
| 253 |
+
# repeat the scales on each GPU in TP>1 case.
|
| 254 |
+
scales_and_zp_input_dim = None
|
| 255 |
+
scales_and_zp_size = input_size // group_size
|
| 256 |
+
else:
|
| 257 |
+
# By setting scale_dim == 0, weight_loader will
|
| 258 |
+
# shard the scales in TP>1 case.
|
| 259 |
+
scales_and_zp_input_dim = 0
|
| 260 |
+
scales_and_zp_size = input_size_per_partition // group_size
|
| 261 |
+
|
| 262 |
+
# Quantized weights
|
| 263 |
+
qweight = PackedvLLMParameter(
|
| 264 |
+
data=torch.empty(
|
| 265 |
+
input_size_per_partition // self.quant_config.pack_factor,
|
| 266 |
+
output_size_per_partition,
|
| 267 |
+
dtype=torch.int32,
|
| 268 |
+
),
|
| 269 |
+
input_dim=0,
|
| 270 |
+
output_dim=1,
|
| 271 |
+
packed_dim=0,
|
| 272 |
+
packed_factor=self.quant_config.pack_factor,
|
| 273 |
+
weight_loader=weight_loader)
|
| 274 |
+
|
| 275 |
+
# Activation order
|
| 276 |
+
g_idx = RowvLLMParameter(data=torch.empty(
|
| 277 |
+
input_size_per_partition,
|
| 278 |
+
dtype=torch.int32,
|
| 279 |
+
),
|
| 280 |
+
input_dim=0,
|
| 281 |
+
weight_loader=weight_loader)
|
| 282 |
+
|
| 283 |
+
qzeros_args = {
|
| 284 |
+
"data":
|
| 285 |
+
torch.empty(
|
| 286 |
+
scales_and_zp_size,
|
| 287 |
+
output_size_per_partition // self.quant_config.pack_factor,
|
| 288 |
+
dtype=torch.int32,
|
| 289 |
+
),
|
| 290 |
+
"weight_loader":
|
| 291 |
+
weight_loader
|
| 292 |
+
}
|
| 293 |
+
weight_scale_args = {
|
| 294 |
+
"data":
|
| 295 |
+
torch.empty(
|
| 296 |
+
scales_and_zp_size,
|
| 297 |
+
output_size_per_partition,
|
| 298 |
+
dtype=params_dtype,
|
| 299 |
+
),
|
| 300 |
+
"weight_loader":
|
| 301 |
+
weight_loader
|
| 302 |
+
}
|
| 303 |
+
|
| 304 |
+
if scales_and_zp_input_dim is None:
|
| 305 |
+
scales = ChannelQuantScaleParameter(output_dim=1,
|
| 306 |
+
**weight_scale_args)
|
| 307 |
+
qzeros = PackedColumnParameter(
|
| 308 |
+
output_dim=1,
|
| 309 |
+
packed_dim=1,
|
| 310 |
+
packed_factor=self.quant_config.pack_factor,
|
| 311 |
+
**qzeros_args)
|
| 312 |
+
|
| 313 |
+
else:
|
| 314 |
+
scales = GroupQuantScaleParameter(output_dim=1,
|
| 315 |
+
input_dim=0,
|
| 316 |
+
**weight_scale_args)
|
| 317 |
+
qzeros = PackedvLLMParameter(
|
| 318 |
+
input_dim=0,
|
| 319 |
+
output_dim=1,
|
| 320 |
+
packed_dim=1,
|
| 321 |
+
packed_factor=self.quant_config.pack_factor,
|
| 322 |
+
**qzeros_args)
|
| 323 |
+
|
| 324 |
+
layer.register_parameter("qweight", qweight)
|
| 325 |
+
layer.register_parameter("g_idx", g_idx)
|
| 326 |
+
layer.register_parameter("scales", scales)
|
| 327 |
+
layer.register_parameter("qzeros", qzeros)
|
| 328 |
+
|
| 329 |
+
self.kernel = kernel_type(mp_linear_kernel_config,
|
| 330 |
+
w_q_param_name="qweight",
|
| 331 |
+
w_s_param_name="scales",
|
| 332 |
+
w_zp_param_name="qzeros",
|
| 333 |
+
w_gidx_param_name="g_idx")
|
| 334 |
+
|
| 335 |
+
def process_weights_after_loading(self, layer: torch.nn.Module) -> None:
|
| 336 |
+
self.kernel.process_weights_after_loading(layer)
|
| 337 |
+
|
| 338 |
+
def apply(
|
| 339 |
+
self,
|
| 340 |
+
layer: torch.nn.Module,
|
| 341 |
+
x: torch.Tensor,
|
| 342 |
+
bias: Optional[torch.Tensor] = None,
|
| 343 |
+
) -> torch.Tensor:
|
| 344 |
+
return self.kernel.apply_weights(layer, x, bias)
|
| 345 |
+
|
| 346 |
+
|
| 347 |
+
class GPTQMarlinMoEMethod(FusedMoEMethodBase):
|
| 348 |
+
"""MoE Marlin method with quantization."""
|
| 349 |
+
|
| 350 |
+
def __init__(self, quant_config: GPTQMarlinConfig) -> None:
|
| 351 |
+
self.quant_config = quant_config
|
| 352 |
+
|
| 353 |
+
def create_weights(
|
| 354 |
+
self,
|
| 355 |
+
layer: torch.nn.Module,
|
| 356 |
+
num_experts: int,
|
| 357 |
+
hidden_size: int,
|
| 358 |
+
intermediate_size_per_partition: int,
|
| 359 |
+
params_dtype: torch.dtype,
|
| 360 |
+
**extra_weight_attrs,
|
| 361 |
+
):
|
| 362 |
+
intermediate_size_full = extra_weight_attrs.pop(
|
| 363 |
+
"intermediate_size_full")
|
| 364 |
+
|
| 365 |
+
self.is_k_full = (not self.quant_config.desc_act) or (
|
| 366 |
+
intermediate_size_per_partition == intermediate_size_full)
|
| 367 |
+
|
| 368 |
+
if self.quant_config.group_size != -1:
|
| 369 |
+
scales_size13 = hidden_size // self.quant_config.group_size
|
| 370 |
+
w2_scales_size = (intermediate_size_full
|
| 371 |
+
if self.quant_config.desc_act else
|
| 372 |
+
intermediate_size_per_partition)
|
| 373 |
+
scales_size2 = (w2_scales_size // self.quant_config.group_size)
|
| 374 |
+
strategy = FusedMoeWeightScaleSupported.GROUP.value
|
| 375 |
+
else:
|
| 376 |
+
scales_size13 = 1
|
| 377 |
+
scales_size2 = 1
|
| 378 |
+
strategy = FusedMoeWeightScaleSupported.CHANNEL.value
|
| 379 |
+
|
| 380 |
+
extra_weight_attrs.update({
|
| 381 |
+
"quant_method": strategy,
|
| 382 |
+
"is_transposed": True
|
| 383 |
+
})
|
| 384 |
+
# Fused gate_up_proj (column parallel)
|
| 385 |
+
w13_qweight = torch.nn.Parameter(
|
| 386 |
+
torch.empty(
|
| 387 |
+
num_experts,
|
| 388 |
+
hidden_size // self.quant_config.pack_factor,
|
| 389 |
+
2 * intermediate_size_per_partition,
|
| 390 |
+
dtype=torch.int32,
|
| 391 |
+
),
|
| 392 |
+
requires_grad=False,
|
| 393 |
+
)
|
| 394 |
+
layer.register_parameter("w13_qweight", w13_qweight)
|
| 395 |
+
set_weight_attrs(w13_qweight, extra_weight_attrs)
|
| 396 |
+
# down_proj (row parallel)
|
| 397 |
+
w2_qweight = torch.nn.Parameter(
|
| 398 |
+
torch.empty(
|
| 399 |
+
num_experts,
|
| 400 |
+
intermediate_size_per_partition //
|
| 401 |
+
self.quant_config.pack_factor,
|
| 402 |
+
hidden_size,
|
| 403 |
+
dtype=torch.int32,
|
| 404 |
+
),
|
| 405 |
+
requires_grad=False,
|
| 406 |
+
)
|
| 407 |
+
layer.register_parameter("w2_qweight", w2_qweight)
|
| 408 |
+
set_weight_attrs(w2_qweight, extra_weight_attrs)
|
| 409 |
+
# up_proj scales
|
| 410 |
+
w13_scales = torch.nn.Parameter(
|
| 411 |
+
torch.empty(num_experts,
|
| 412 |
+
scales_size13,
|
| 413 |
+
2 * intermediate_size_per_partition,
|
| 414 |
+
dtype=params_dtype),
|
| 415 |
+
requires_grad=False,
|
| 416 |
+
)
|
| 417 |
+
layer.register_parameter("w13_scales", w13_scales)
|
| 418 |
+
set_weight_attrs(w13_scales, extra_weight_attrs)
|
| 419 |
+
# down_proj scales
|
| 420 |
+
w2_scales = torch.nn.Parameter(
|
| 421 |
+
torch.empty(num_experts,
|
| 422 |
+
scales_size2,
|
| 423 |
+
hidden_size,
|
| 424 |
+
dtype=params_dtype),
|
| 425 |
+
requires_grad=False,
|
| 426 |
+
)
|
| 427 |
+
layer.register_parameter("w2_scales", w2_scales)
|
| 428 |
+
set_weight_attrs(w2_scales, extra_weight_attrs)
|
| 429 |
+
# dont shard the w2 scales when running act order
|
| 430 |
+
set_weight_attrs(w2_scales,
|
| 431 |
+
{"load_full_w2": self.quant_config.desc_act})
|
| 432 |
+
# up_proj scales
|
| 433 |
+
w13_qzeros = torch.nn.Parameter(
|
| 434 |
+
torch.empty(num_experts,
|
| 435 |
+
scales_size13,
|
| 436 |
+
2 * intermediate_size_per_partition //
|
| 437 |
+
self.quant_config.pack_factor,
|
| 438 |
+
dtype=params_dtype),
|
| 439 |
+
requires_grad=False,
|
| 440 |
+
)
|
| 441 |
+
layer.register_parameter("w13_qzeros", w13_qzeros)
|
| 442 |
+
set_weight_attrs(w13_qzeros, extra_weight_attrs)
|
| 443 |
+
# down_proj scales
|
| 444 |
+
w2_qzeros = torch.nn.Parameter(
|
| 445 |
+
torch.empty(num_experts,
|
| 446 |
+
scales_size2,
|
| 447 |
+
hidden_size // self.quant_config.pack_factor,
|
| 448 |
+
dtype=params_dtype),
|
| 449 |
+
requires_grad=False,
|
| 450 |
+
)
|
| 451 |
+
layer.register_parameter("w2_qzeros", w2_qzeros)
|
| 452 |
+
set_weight_attrs(w2_qzeros, extra_weight_attrs)
|
| 453 |
+
# dont shard the w2 scales when running act order
|
| 454 |
+
set_weight_attrs(w2_qzeros,
|
| 455 |
+
{"load_full_w2": self.quant_config.desc_act})
|
| 456 |
+
w13_g_idx = torch.nn.Parameter(
|
| 457 |
+
torch.empty(
|
| 458 |
+
num_experts,
|
| 459 |
+
hidden_size,
|
| 460 |
+
dtype=torch.int32,
|
| 461 |
+
),
|
| 462 |
+
requires_grad=False,
|
| 463 |
+
)
|
| 464 |
+
layer.register_parameter("w13_g_idx", w13_g_idx)
|
| 465 |
+
set_weight_attrs(w13_g_idx, extra_weight_attrs)
|
| 466 |
+
w2_g_idx = torch.nn.Parameter(
|
| 467 |
+
torch.empty(
|
| 468 |
+
num_experts,
|
| 469 |
+
intermediate_size_per_partition,
|
| 470 |
+
dtype=torch.int32,
|
| 471 |
+
),
|
| 472 |
+
requires_grad=False,
|
| 473 |
+
)
|
| 474 |
+
layer.register_parameter("w2_g_idx", w2_g_idx)
|
| 475 |
+
set_weight_attrs(w2_g_idx, extra_weight_attrs)
|
| 476 |
+
w13_g_idx_sort_indices = torch.nn.Parameter(
|
| 477 |
+
torch.empty(
|
| 478 |
+
num_experts,
|
| 479 |
+
hidden_size,
|
| 480 |
+
dtype=torch.int32,
|
| 481 |
+
),
|
| 482 |
+
requires_grad=False,
|
| 483 |
+
)
|
| 484 |
+
layer.register_parameter("w13_g_idx_sort_indices",
|
| 485 |
+
w13_g_idx_sort_indices)
|
| 486 |
+
set_weight_attrs(w13_g_idx_sort_indices, extra_weight_attrs)
|
| 487 |
+
w2_g_idx_sort_indices = torch.nn.Parameter(
|
| 488 |
+
torch.empty(
|
| 489 |
+
num_experts,
|
| 490 |
+
intermediate_size_per_partition,
|
| 491 |
+
dtype=torch.int32,
|
| 492 |
+
),
|
| 493 |
+
requires_grad=False,
|
| 494 |
+
)
|
| 495 |
+
layer.register_parameter("w2_g_idx_sort_indices",
|
| 496 |
+
w2_g_idx_sort_indices)
|
| 497 |
+
set_weight_attrs(w2_g_idx_sort_indices, extra_weight_attrs)
|
| 498 |
+
|
| 499 |
+
device = layer.w13_qweight.device
|
| 500 |
+
sms = torch.cuda.get_device_properties(device).multi_processor_count
|
| 501 |
+
layer.workspace = torch.zeros((sms * 4, ),
|
| 502 |
+
dtype=torch.int,
|
| 503 |
+
device=device,
|
| 504 |
+
requires_grad=False)
|
| 505 |
+
|
| 506 |
+
def process_weights_after_loading(self, layer: torch.nn.Module) -> None:
|
| 507 |
+
|
| 508 |
+
# Process act_order
|
| 509 |
+
if self.quant_config.desc_act:
|
| 510 |
+
# Get sorting based on g_idx
|
| 511 |
+
num_experts = layer.w13_g_idx.shape[0]
|
| 512 |
+
w13_g_idx_sort_indices = torch.empty_like(layer.w13_g_idx)
|
| 513 |
+
w2_g_idx_sort_indices = torch.empty_like(layer.w2_g_idx)
|
| 514 |
+
w13_sorted_g_idx = torch.empty_like(layer.w13_g_idx)
|
| 515 |
+
w2_sorted_g_idx = torch.empty_like(layer.w2_g_idx)
|
| 516 |
+
for e in range(num_experts):
|
| 517 |
+
w13_g_idx_sort_indices[e] = torch.argsort(
|
| 518 |
+
layer.w13_g_idx[e]).to(torch.int32)
|
| 519 |
+
w2_g_idx_sort_indices[e] = torch.argsort(layer.w2_g_idx[e]).to(
|
| 520 |
+
torch.int32)
|
| 521 |
+
w13_sorted_g_idx[e] = layer.w13_g_idx[e][
|
| 522 |
+
w13_g_idx_sort_indices[e]]
|
| 523 |
+
w2_sorted_g_idx[e] = layer.w2_g_idx[e][
|
| 524 |
+
w2_g_idx_sort_indices[e]]
|
| 525 |
+
replace_parameter(layer, "w13_g_idx", w13_sorted_g_idx)
|
| 526 |
+
replace_parameter(layer, "w2_g_idx", w2_sorted_g_idx)
|
| 527 |
+
replace_parameter(layer, "w13_g_idx_sort_indices",
|
| 528 |
+
w13_g_idx_sort_indices)
|
| 529 |
+
replace_parameter(layer, "w2_g_idx_sort_indices",
|
| 530 |
+
w2_g_idx_sort_indices)
|
| 531 |
+
else:
|
| 532 |
+
# Reset g_idx related tensors
|
| 533 |
+
num_experts = layer.w13_g_idx.shape[0]
|
| 534 |
+
device = layer.w13_g_idx.device
|
| 535 |
+
layer.w13_g_idx = torch.nn.Parameter(
|
| 536 |
+
torch.empty((num_experts, 0), dtype=torch.int32,
|
| 537 |
+
device=device),
|
| 538 |
+
requires_grad=False,
|
| 539 |
+
)
|
| 540 |
+
layer.w2_g_idx = torch.nn.Parameter(
|
| 541 |
+
torch.empty((num_experts, 0), dtype=torch.int32,
|
| 542 |
+
device=device),
|
| 543 |
+
requires_grad=False,
|
| 544 |
+
)
|
| 545 |
+
layer.w13_g_idx_sort_indices = torch.nn.Parameter(
|
| 546 |
+
torch.empty((num_experts, 0), dtype=torch.int32,
|
| 547 |
+
device=device),
|
| 548 |
+
requires_grad=False,
|
| 549 |
+
)
|
| 550 |
+
layer.w2_g_idx_sort_indices = torch.nn.Parameter(
|
| 551 |
+
torch.empty((num_experts, 0), dtype=torch.int32,
|
| 552 |
+
device=device),
|
| 553 |
+
requires_grad=False,
|
| 554 |
+
)
|
| 555 |
+
# Repack weights
|
| 556 |
+
marlin_w13_qweight = ops.gptq_marlin_moe_repack(
|
| 557 |
+
layer.w13_qweight,
|
| 558 |
+
layer.w13_g_idx_sort_indices,
|
| 559 |
+
layer.w13_qweight.shape[1] * self.quant_config.pack_factor,
|
| 560 |
+
layer.w13_qweight.shape[2],
|
| 561 |
+
self.quant_config.quant_type.size_bits,
|
| 562 |
+
)
|
| 563 |
+
replace_parameter(layer, "w13_qweight", marlin_w13_qweight)
|
| 564 |
+
marlin_w2_qweight = ops.gptq_marlin_moe_repack(
|
| 565 |
+
layer.w2_qweight,
|
| 566 |
+
layer.w2_g_idx_sort_indices,
|
| 567 |
+
layer.w2_qweight.shape[1] * self.quant_config.pack_factor,
|
| 568 |
+
layer.w2_qweight.shape[2],
|
| 569 |
+
self.quant_config.quant_type.size_bits,
|
| 570 |
+
)
|
| 571 |
+
replace_parameter(layer, "w2_qweight", marlin_w2_qweight)
|
| 572 |
+
# Repack scales
|
| 573 |
+
marlin_w13_scales = marlin_moe_permute_scales(
|
| 574 |
+
s=layer.w13_scales,
|
| 575 |
+
size_k=layer.intermediate_size_per_partition,
|
| 576 |
+
size_n=layer.w13_scales.shape[2],
|
| 577 |
+
group_size=self.quant_config.group_size,
|
| 578 |
+
)
|
| 579 |
+
replace_parameter(layer, "w13_scales", marlin_w13_scales)
|
| 580 |
+
marlin_w2_scales = marlin_moe_permute_scales(
|
| 581 |
+
s=layer.w2_scales,
|
| 582 |
+
size_k=layer.w2_scales.shape[1] *
|
| 583 |
+
(self.quant_config.group_size if self.quant_config.group_size != -1
|
| 584 |
+
else self.quant_config.pack_factor),
|
| 585 |
+
size_n=layer.w2_scales.shape[2],
|
| 586 |
+
group_size=self.quant_config.group_size,
|
| 587 |
+
)
|
| 588 |
+
replace_parameter(layer, "w2_scales", marlin_w2_scales)
|
| 589 |
+
|
| 590 |
+
def apply(
|
| 591 |
+
self,
|
| 592 |
+
layer: torch.nn.Module,
|
| 593 |
+
x: torch.Tensor,
|
| 594 |
+
router_logits: torch.Tensor,
|
| 595 |
+
top_k: int,
|
| 596 |
+
renormalize: bool,
|
| 597 |
+
use_grouped_topk: bool = False,
|
| 598 |
+
topk_group: Optional[int] = None,
|
| 599 |
+
num_expert_group: Optional[int] = None,
|
| 600 |
+
global_num_experts: int = -1,
|
| 601 |
+
expert_map: Optional[torch.Tensor] = None,
|
| 602 |
+
custom_routing_function: Optional[Callable] = None,
|
| 603 |
+
scoring_func: str = "softmax",
|
| 604 |
+
e_score_correction_bias: Optional[torch.Tensor] = None,
|
| 605 |
+
apply_router_weight_on_input: bool = False,
|
| 606 |
+
activation: str = "silu",
|
| 607 |
+
) -> torch.Tensor:
|
| 608 |
+
assert activation == "silu", "Only SiLU activation is supported."
|
| 609 |
+
if apply_router_weight_on_input:
|
| 610 |
+
raise NotImplementedError(
|
| 611 |
+
"Apply router weight on input is not supported for"
|
| 612 |
+
"fused Marlin MoE method.")
|
| 613 |
+
|
| 614 |
+
topk_weights, topk_ids = FusedMoE.select_experts(
|
| 615 |
+
hidden_states=x,
|
| 616 |
+
router_logits=router_logits,
|
| 617 |
+
use_grouped_topk=use_grouped_topk,
|
| 618 |
+
top_k=top_k,
|
| 619 |
+
renormalize=renormalize,
|
| 620 |
+
topk_group=topk_group,
|
| 621 |
+
num_expert_group=num_expert_group,
|
| 622 |
+
custom_routing_function=custom_routing_function,
|
| 623 |
+
scoring_func=scoring_func,
|
| 624 |
+
e_score_correction_bias=e_score_correction_bias)
|
| 625 |
+
|
| 626 |
+
return torch.ops.vllm.fused_marlin_moe(
|
| 627 |
+
x,
|
| 628 |
+
layer.w13_qweight,
|
| 629 |
+
layer.w2_qweight,
|
| 630 |
+
layer.w13_scales,
|
| 631 |
+
layer.w2_scales,
|
| 632 |
+
router_logits,
|
| 633 |
+
topk_weights,
|
| 634 |
+
topk_ids,
|
| 635 |
+
global_num_experts=global_num_experts,
|
| 636 |
+
expert_map=expert_map,
|
| 637 |
+
g_idx1=layer.w13_g_idx,
|
| 638 |
+
g_idx2=layer.w2_g_idx,
|
| 639 |
+
sort_indices1=layer.w13_g_idx_sort_indices,
|
| 640 |
+
sort_indices2=layer.w2_g_idx_sort_indices,
|
| 641 |
+
num_bits=self.quant_config.quant_type.size_bits,
|
| 642 |
+
workspace=layer.workspace,
|
| 643 |
+
is_k_full=self.is_k_full)
|