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|
| | import argparse |
| | import os |
| | import sys |
| | from ast import literal_eval |
| | from typing import Any, Dict, List, Tuple |
| |
|
| | import torch |
| |
|
| | from ..commands.config.config_args import SageMakerConfig |
| | from ..commands.config.config_utils import DYNAMO_BACKENDS |
| | from ..utils import ( |
| | DynamoBackend, |
| | PrecisionType, |
| | is_ipex_available, |
| | is_npu_available, |
| | is_xpu_available, |
| | ) |
| | from ..utils.constants import DEEPSPEED_MULTINODE_LAUNCHERS |
| | from ..utils.other import is_port_in_use, merge_dicts |
| | from .dataclasses import DistributedType, SageMakerDistributedType |
| |
|
| |
|
| | def _filter_args(args, parser, default_args=[]): |
| | """ |
| | Filters out all `accelerate` specific args |
| | """ |
| | new_args, _ = parser.parse_known_args(default_args) |
| | for key, value in vars(args).items(): |
| | if key in vars(new_args).keys(): |
| | setattr(new_args, key, value) |
| | return new_args |
| |
|
| |
|
| | def prepare_simple_launcher_cmd_env(args: argparse.Namespace) -> Tuple[List[str], Dict[str, str]]: |
| | """ |
| | Prepares and returns the command list and an environment with the correct simple launcher environment variables. |
| | """ |
| | cmd = [] |
| | if args.no_python and args.module: |
| | raise ValueError("--module and --no_python cannot be used together") |
| | if not args.no_python: |
| | cmd.append(sys.executable) |
| | if args.module: |
| | cmd.append("-m") |
| | cmd.append(args.training_script) |
| | cmd.extend(args.training_script_args) |
| |
|
| | current_env = os.environ.copy() |
| | current_env["ACCELERATE_USE_CPU"] = str(args.cpu or args.use_cpu) |
| | if args.debug: |
| | current_env["ACCELERATE_DEBUG_MODE"] = "true" |
| | if args.gpu_ids != "all" and args.gpu_ids is not None: |
| | if is_xpu_available(): |
| | current_env["ZE_AFFINITY_MASK"] = args.gpu_ids |
| | elif is_npu_available(): |
| | current_env["ASCEND_RT_VISIBLE_DEVICES"] = args.gpu_ids |
| | else: |
| | current_env["CUDA_VISIBLE_DEVICES"] = args.gpu_ids |
| | if args.num_machines > 1: |
| | current_env["MASTER_ADDR"] = args.main_process_ip |
| | current_env["MASTER_PORT"] = str(args.main_process_port) |
| | elif args.num_processes > 1: |
| | current_env["MASTER_ADDR"] = args.main_process_ip if args.main_process_ip is not None else "127.0.0.1" |
| | current_env["MASTER_PORT"] = str(args.main_process_port) if args.main_process_port is not None else "29500" |
| |
|
| | try: |
| | mixed_precision = PrecisionType(args.mixed_precision.lower()) |
| | except ValueError: |
| | raise ValueError( |
| | f"Unknown mixed_precision mode: {args.mixed_precision.lower()}. Choose between {PrecisionType.list()}." |
| | ) |
| |
|
| | current_env["ACCELERATE_MIXED_PRECISION"] = str(mixed_precision) |
| |
|
| | try: |
| | dynamo_backend = DynamoBackend(args.dynamo_backend.upper()) |
| | except ValueError: |
| | raise ValueError(f"Unknown dynamo backend: {args.dynamo_backend.upper()}. Choose between {DYNAMO_BACKENDS}.") |
| | current_env["ACCELERATE_DYNAMO_BACKEND"] = dynamo_backend.value |
| | current_env["ACCELERATE_DYNAMO_MODE"] = args.dynamo_mode |
| | current_env["ACCELERATE_DYNAMO_USE_FULLGRAPH"] = str(args.dynamo_use_fullgraph) |
| | current_env["ACCELERATE_DYNAMO_USE_DYNAMIC"] = str(args.dynamo_use_dynamic) |
| |
|
| | current_env["OMP_NUM_THREADS"] = str(args.num_cpu_threads_per_process) |
| | if is_ipex_available(): |
| | current_env["ACCELERATE_USE_IPEX"] = str(args.ipex).lower() |
| | current_env["ACCELERATE_USE_XPU"] = str(args.use_xpu).lower() |
| | return cmd, current_env |
| |
|
| |
|
| | def prepare_multi_gpu_env(args: argparse.Namespace) -> Dict[str, str]: |
| | """ |
| | Prepares and returns an environment with the correct multi-GPU environment variables. |
| | """ |
| | num_processes = getattr(args, "num_processes") |
| | num_machines = getattr(args, "num_machines") |
| | main_process_ip = getattr(args, "main_process_ip") |
| | main_process_port = getattr(args, "main_process_port") |
| | if num_machines > 1: |
| | setattr(args, "nproc_per_node", str(num_processes // num_machines)) |
| | setattr(args, "nnodes", str(num_machines)) |
| | setattr(args, "node_rank", int(args.machine_rank)) |
| | if getattr(args, "same_network", False): |
| | setattr(args, "master_addr", str(main_process_ip)) |
| | setattr(args, "master_port", str(main_process_port)) |
| | else: |
| | setattr(args, "rdzv_endpoint", f"{main_process_ip}:{main_process_port}") |
| | else: |
| | setattr(args, "nproc_per_node", str(num_processes)) |
| | if main_process_port is not None: |
| | setattr(args, "master_port", str(main_process_port)) |
| |
|
| | if main_process_port is None: |
| | main_process_port = 29500 |
| |
|
| | if is_port_in_use(main_process_port): |
| | raise ConnectionError( |
| | f"Tried to launch distributed communication on port `{main_process_port}`, but another process is utilizing it. " |
| | "Please specify a different port (such as using the `----main_process_port` flag or specifying a different `main_process_port` in your config file)" |
| | " and rerun your script. To automatically use the next open port (on a single node), you can set this to `0`." |
| | ) |
| |
|
| | if args.module and args.no_python: |
| | raise ValueError("--module and --no_python cannot be used together") |
| | elif args.module: |
| | setattr(args, "module", True) |
| | elif args.no_python: |
| | setattr(args, "no_python", True) |
| |
|
| | current_env = os.environ.copy() |
| | if args.debug: |
| | current_env["ACCELERATE_DEBUG_MODE"] = "true" |
| | gpu_ids = getattr(args, "gpu_ids", "all") |
| | if gpu_ids != "all" and args.gpu_ids is not None: |
| | if is_xpu_available(): |
| | current_env["ZE_AFFINITY_MASK"] = gpu_ids |
| | elif is_npu_available(): |
| | current_env["ASCEND_RT_VISIBLE_DEVICES"] = gpu_ids |
| | else: |
| | current_env["CUDA_VISIBLE_DEVICES"] = gpu_ids |
| | mixed_precision = args.mixed_precision.lower() |
| | try: |
| | mixed_precision = PrecisionType(mixed_precision) |
| | except ValueError: |
| | raise ValueError(f"Unknown mixed_precision mode: {mixed_precision}. Choose between {PrecisionType.list()}.") |
| |
|
| | current_env["ACCELERATE_MIXED_PRECISION"] = str(mixed_precision) |
| |
|
| | try: |
| | dynamo_backend = DynamoBackend(args.dynamo_backend.upper()) |
| | except ValueError: |
| | raise ValueError(f"Unknown dynamo backend: {args.dynamo_backend.upper()}. Choose between {DYNAMO_BACKENDS}.") |
| | current_env["ACCELERATE_DYNAMO_BACKEND"] = dynamo_backend.value |
| | current_env["ACCELERATE_DYNAMO_MODE"] = args.dynamo_mode |
| | current_env["ACCELERATE_DYNAMO_USE_FULLGRAPH"] = str(args.dynamo_use_fullgraph) |
| | current_env["ACCELERATE_DYNAMO_USE_DYNAMIC"] = str(args.dynamo_use_dynamic) |
| |
|
| | if args.use_fsdp: |
| | current_env["ACCELERATE_USE_FSDP"] = "true" |
| | current_env["FSDP_SHARDING_STRATEGY"] = str(args.fsdp_sharding_strategy) |
| | current_env["FSDP_OFFLOAD_PARAMS"] = str(args.fsdp_offload_params).lower() |
| | current_env["FSDP_MIN_NUM_PARAMS"] = str(args.fsdp_min_num_params) |
| | if args.fsdp_auto_wrap_policy is not None: |
| | current_env["FSDP_AUTO_WRAP_POLICY"] = str(args.fsdp_auto_wrap_policy) |
| | if args.fsdp_transformer_layer_cls_to_wrap is not None: |
| | current_env["FSDP_TRANSFORMER_CLS_TO_WRAP"] = str(args.fsdp_transformer_layer_cls_to_wrap) |
| | if args.fsdp_backward_prefetch_policy is not None: |
| | current_env["FSDP_BACKWARD_PREFETCH"] = str(args.fsdp_backward_prefetch_policy) |
| | if args.fsdp_state_dict_type is not None: |
| | current_env["FSDP_STATE_DICT_TYPE"] = str(args.fsdp_state_dict_type) |
| | current_env["FSDP_FORWARD_PREFETCH"] = str(args.fsdp_forward_prefetch).lower() |
| | current_env["FSDP_USE_ORIG_PARAMS"] = str(args.fsdp_use_orig_params).lower() |
| | current_env["FSDP_SYNC_MODULE_STATES"] = str(args.fsdp_sync_module_states).lower() |
| |
|
| | if args.use_megatron_lm: |
| | prefix = "MEGATRON_LM_" |
| | current_env["ACCELERATE_USE_MEGATRON_LM"] = "true" |
| | current_env[prefix + "TP_DEGREE"] = str(args.megatron_lm_tp_degree) |
| | current_env[prefix + "PP_DEGREE"] = str(args.megatron_lm_pp_degree) |
| | current_env[prefix + "GRADIENT_CLIPPING"] = str(args.megatron_lm_gradient_clipping) |
| | if args.megatron_lm_num_micro_batches is not None: |
| | current_env[prefix + "NUM_MICRO_BATCHES"] = str(args.megatron_lm_num_micro_batches) |
| | if args.megatron_lm_sequence_parallelism is not None: |
| | current_env[prefix + "SEQUENCE_PARALLELISM"] = str(args.megatron_lm_sequence_parallelism) |
| | if args.megatron_lm_recompute_activations is not None: |
| | current_env[prefix + "RECOMPUTE_ACTIVATIONS"] = str(args.megatron_lm_recompute_activations) |
| | if args.megatron_lm_use_distributed_optimizer is not None: |
| | current_env[prefix + "USE_DISTRIBUTED_OPTIMIZER"] = str(args.megatron_lm_use_distributed_optimizer) |
| |
|
| | current_env["OMP_NUM_THREADS"] = str(args.num_cpu_threads_per_process) |
| | return current_env |
| |
|
| |
|
| | def prepare_deepspeed_cmd_env(args: argparse.Namespace) -> Tuple[List[str], Dict[str, str]]: |
| | """ |
| | Prepares and returns the command list and an environment with the correct DeepSpeed environment variables. |
| | """ |
| | num_processes = getattr(args, "num_processes") |
| | num_machines = getattr(args, "num_machines") |
| | main_process_ip = getattr(args, "main_process_ip") |
| | main_process_port = getattr(args, "main_process_port") |
| | cmd = None |
| |
|
| | |
| | if args.deepspeed_multinode_launcher is None: |
| | |
| | setattr(args, "deepspeed_multinode_launcher", DEEPSPEED_MULTINODE_LAUNCHERS[0]) |
| |
|
| | if num_machines > 1 and args.deepspeed_multinode_launcher != DEEPSPEED_MULTINODE_LAUNCHERS[1]: |
| | cmd = ["deepspeed", "--no_local_rank"] |
| | cmd.extend(["--hostfile", str(args.deepspeed_hostfile), "--launcher", str(args.deepspeed_multinode_launcher)]) |
| | if args.deepspeed_exclusion_filter is not None: |
| | cmd.extend( |
| | [ |
| | "--exclude", |
| | str(args.deepspeed_exclusion_filter), |
| | ] |
| | ) |
| | elif args.deepspeed_inclusion_filter is not None: |
| | cmd.extend( |
| | [ |
| | "--include", |
| | str(args.deepspeed_inclusion_filter), |
| | ] |
| | ) |
| | else: |
| | cmd.extend(["--num_gpus", str(args.num_processes // args.num_machines)]) |
| | cmd.extend(["--master_port", str(main_process_port)]) |
| | if args.module and args.no_python: |
| | raise ValueError("--module and --no_python cannot be used together") |
| | elif args.module: |
| | cmd.append("--module") |
| | elif args.no_python: |
| | cmd.append("--no_python") |
| | cmd.append(args.training_script) |
| | cmd.extend(args.training_script_args) |
| | elif num_machines > 1 and args.deepspeed_multinode_launcher == DEEPSPEED_MULTINODE_LAUNCHERS[1]: |
| | setattr(args, "nproc_per_node", str(num_processes // num_machines)) |
| | setattr(args, "nnodes", str(num_machines)) |
| | setattr(args, "node_rank", int(args.machine_rank)) |
| | if getattr(args, "same_network", False): |
| | setattr(args, "master_addr", str(main_process_ip)) |
| | setattr(args, "master_port", str(main_process_port)) |
| | else: |
| | setattr(args, "rdzv_endpoint", f"{main_process_ip}:{main_process_port}") |
| | else: |
| | setattr(args, "nproc_per_node", str(num_processes)) |
| | if main_process_port is not None: |
| | setattr(args, "master_port", str(main_process_port)) |
| |
|
| | if main_process_port is None: |
| | main_process_port = 29500 |
| |
|
| | if is_port_in_use(main_process_port): |
| | raise ConnectionError( |
| | f"Tried to launch distributed communication on port `{main_process_port}`, but another process is utilizing it. " |
| | "Please specify a different port (such as using the `----main_process_port` flag or specifying a different `main_process_port` in your config file)" |
| | " and rerun your script. To automatically use the next open port (on a single node), you can set this to `0`." |
| | ) |
| |
|
| | if args.module and args.no_python: |
| | raise ValueError("--module and --no_python cannot be used together") |
| | elif args.module: |
| | setattr(args, "module", True) |
| | elif args.no_python: |
| | setattr(args, "no_python", True) |
| |
|
| | current_env = os.environ.copy() |
| | if args.debug: |
| | current_env["ACCELERATE_DEBUG_MODE"] = "true" |
| | gpu_ids = getattr(args, "gpu_ids", "all") |
| | if gpu_ids != "all" and args.gpu_ids is not None: |
| | if not is_xpu_available(): |
| | current_env["CUDA_VISIBLE_DEVICES"] = gpu_ids |
| | else: |
| | current_env["ZE_AFFINITY_MASK"] = gpu_ids |
| | try: |
| | mixed_precision = PrecisionType(args.mixed_precision.lower()) |
| | except ValueError: |
| | raise ValueError( |
| | f"Unknown mixed_precision mode: {args.mixed_precision.lower()}. Choose between {PrecisionType.list()}." |
| | ) |
| |
|
| | current_env["PYTHONPATH"] = env_var_path_add("PYTHONPATH", os.path.abspath(".")) |
| | current_env["ACCELERATE_MIXED_PRECISION"] = str(mixed_precision) |
| | current_env["ACCELERATE_CONFIG_DS_FIELDS"] = str(args.deepspeed_fields_from_accelerate_config).lower() |
| | current_env["ACCELERATE_USE_DEEPSPEED"] = "true" |
| | if args.zero_stage is not None: |
| | current_env["ACCELERATE_DEEPSPEED_ZERO_STAGE"] = str(args.zero_stage) |
| | if args.gradient_accumulation_steps is not None: |
| | current_env["ACCELERATE_GRADIENT_ACCUMULATION_STEPS"] = str(args.gradient_accumulation_steps) |
| | if args.gradient_clipping is not None: |
| | current_env["ACCELERATE_GRADIENT_CLIPPING"] = str(args.gradient_clipping).lower() |
| | if args.offload_optimizer_device is not None: |
| | current_env["ACCELERATE_DEEPSPEED_OFFLOAD_OPTIMIZER_DEVICE"] = str(args.offload_optimizer_device).lower() |
| | if args.offload_param_device is not None: |
| | current_env["ACCELERATE_DEEPSPEED_OFFLOAD_PARAM_DEVICE"] = str(args.offload_param_device).lower() |
| | if args.zero3_init_flag is not None: |
| | current_env["ACCELERATE_DEEPSPEED_ZERO3_INIT"] = str(args.zero3_init_flag).lower() |
| | if args.zero3_save_16bit_model is not None: |
| | current_env["ACCELERATE_DEEPSPEED_ZERO3_SAVE_16BIT_MODEL"] = str(args.zero3_save_16bit_model).lower() |
| | if args.deepspeed_config_file is not None: |
| | current_env["ACCELERATE_DEEPSPEED_CONFIG_FILE"] = str(args.deepspeed_config_file) |
| | return cmd, current_env |
| |
|
| |
|
| | def prepare_tpu( |
| | args: argparse.Namespace, current_env: Dict[str, str], pod: bool = False |
| | ) -> Tuple[argparse.Namespace, Dict[str, str]]: |
| | """ |
| | Prepares and returns an environment with the correct TPU environment variables. |
| | """ |
| | if args.mixed_precision == "bf16": |
| | if args.downcast_bf16: |
| | current_env["XLA_DOWNCAST_BF16"] = "1" |
| | else: |
| | current_env["XLA_USE_BF16"] = "1" |
| | if args.debug: |
| | current_env["ACCELERATE_DEBUG_MODE"] = "true" |
| | if pod: |
| | |
| | args.vm = args.tpu_vm |
| | args.tpu = args.tpu_name |
| | return args, current_env |
| |
|
| |
|
| | def _convert_nargs_to_dict(nargs: List[str]) -> Dict[str, str]: |
| | if len(nargs) < 0: |
| | return {} |
| | |
| |
|
| | def _infer_type(s): |
| | try: |
| | s = float(s) |
| |
|
| | if s // 1 == s: |
| | return int(s) |
| | return s |
| | except ValueError: |
| | return s |
| |
|
| | parser = argparse.ArgumentParser() |
| | _, unknown = parser.parse_known_args(nargs) |
| | for index, argument in enumerate(unknown): |
| | if argument.startswith(("-", "--")): |
| | action = None |
| | if index + 1 < len(unknown): |
| | if unknown[index + 1].startswith(("-", "--")): |
| | |
| | raise ValueError( |
| | "SageMaker doesn’t support argparse actions for `store_true` or `store_false`. Please define explicit types" |
| | ) |
| | else: |
| | raise ValueError( |
| | "SageMaker doesn’t support argparse actions for `store_true` or `store_false`. Please define explicit types" |
| | ) |
| | |
| | if action is None: |
| | parser.add_argument(argument, type=_infer_type) |
| | else: |
| | parser.add_argument(argument, action=action) |
| |
|
| | return { |
| | key: (literal_eval(value) if value in ("True", "False") else value) |
| | for key, value in parser.parse_args(nargs).__dict__.items() |
| | } |
| |
|
| |
|
| | def prepare_sagemager_args_inputs( |
| | sagemaker_config: SageMakerConfig, args: argparse.Namespace |
| | ) -> Tuple[argparse.Namespace, Dict[str, Any]]: |
| | |
| | print("Configuring Amazon SageMaker environment") |
| | os.environ["AWS_DEFAULT_REGION"] = sagemaker_config.region |
| |
|
| | |
| | if sagemaker_config.profile is not None: |
| | os.environ["AWS_PROFILE"] = sagemaker_config.profile |
| | elif args.aws_access_key_id is not None and args.aws_secret_access_key is not None: |
| | os.environ["AWS_ACCESS_KEY_ID"] = args.aws_access_key_id |
| | os.environ["AWS_SECRET_ACCESS_KEY"] = args.aws_secret_access_key |
| | else: |
| | raise EnvironmentError( |
| | "You need to provide an aws_access_key_id and aws_secret_access_key when not using aws_profile" |
| | ) |
| |
|
| | |
| | source_dir = os.path.dirname(args.training_script) |
| | if not source_dir: |
| | source_dir = "." |
| | entry_point = os.path.basename(args.training_script) |
| | if not entry_point.endswith(".py"): |
| | raise ValueError(f'Your training script should be a python script and not "{entry_point}"') |
| |
|
| | print("Converting Arguments to Hyperparameters") |
| | hyperparameters = _convert_nargs_to_dict(args.training_script_args) |
| |
|
| | try: |
| | mixed_precision = PrecisionType(args.mixed_precision.lower()) |
| | except ValueError: |
| | raise ValueError( |
| | f"Unknown mixed_precision mode: {args.mixed_precision.lower()}. Choose between {PrecisionType.list()}." |
| | ) |
| |
|
| | try: |
| | dynamo_backend = DynamoBackend(args.dynamo_backend.upper()) |
| | except ValueError: |
| | raise ValueError(f"Unknown dynamo backend: {args.dynamo_backend.upper()}. Choose between {DYNAMO_BACKENDS}.") |
| |
|
| | |
| | environment = { |
| | "ACCELERATE_USE_SAGEMAKER": "true", |
| | "ACCELERATE_MIXED_PRECISION": str(mixed_precision), |
| | "ACCELERATE_DYNAMO_BACKEND": dynamo_backend.value, |
| | "ACCELERATE_DYNAMO_MODE": args.dynamo_mode, |
| | "ACCELERATE_DYNAMO_USE_FULLGRAPH": str(args.dynamo_use_fullgraph), |
| | "ACCELERATE_DYNAMO_USE_DYNAMIC": str(args.dynamo_use_dynamic), |
| | "ACCELERATE_SAGEMAKER_DISTRIBUTED_TYPE": sagemaker_config.distributed_type.value, |
| | } |
| | |
| | distribution = None |
| | if sagemaker_config.distributed_type == SageMakerDistributedType.DATA_PARALLEL: |
| | distribution = {"smdistributed": {"dataparallel": {"enabled": True}}} |
| |
|
| | |
| | sagemaker_inputs = None |
| | if sagemaker_config.sagemaker_inputs_file is not None: |
| | print(f"Loading SageMaker Inputs from {sagemaker_config.sagemaker_inputs_file} file") |
| | sagemaker_inputs = {} |
| | with open(sagemaker_config.sagemaker_inputs_file) as file: |
| | for i, line in enumerate(file): |
| | if i == 0: |
| | continue |
| | l = line.split("\t") |
| | sagemaker_inputs[l[0]] = l[1].strip() |
| | print(f"Loaded SageMaker Inputs: {sagemaker_inputs}") |
| |
|
| | |
| | sagemaker_metrics = None |
| | if sagemaker_config.sagemaker_metrics_file is not None: |
| | print(f"Loading SageMaker Metrics from {sagemaker_config.sagemaker_metrics_file} file") |
| | sagemaker_metrics = [] |
| | with open(sagemaker_config.sagemaker_metrics_file) as file: |
| | for i, line in enumerate(file): |
| | if i == 0: |
| | continue |
| | l = line.split("\t") |
| | metric_dict = { |
| | "Name": l[0], |
| | "Regex": l[1].strip(), |
| | } |
| | sagemaker_metrics.append(metric_dict) |
| | print(f"Loaded SageMaker Metrics: {sagemaker_metrics}") |
| |
|
| | |
| | print("Creating Estimator") |
| | args = { |
| | "image_uri": sagemaker_config.image_uri, |
| | "entry_point": entry_point, |
| | "source_dir": source_dir, |
| | "role": sagemaker_config.iam_role_name, |
| | "transformers_version": sagemaker_config.transformers_version, |
| | "pytorch_version": sagemaker_config.pytorch_version, |
| | "py_version": sagemaker_config.py_version, |
| | "base_job_name": sagemaker_config.base_job_name, |
| | "instance_count": sagemaker_config.num_machines, |
| | "instance_type": sagemaker_config.ec2_instance_type, |
| | "debugger_hook_config": False, |
| | "distribution": distribution, |
| | "hyperparameters": hyperparameters, |
| | "environment": environment, |
| | "metric_definitions": sagemaker_metrics, |
| | } |
| |
|
| | if sagemaker_config.additional_args is not None: |
| | args = merge_dicts(sagemaker_config.additional_args, args) |
| | return args, sagemaker_inputs |
| |
|
| |
|
| | def env_var_path_add(env_var_name, path_to_add): |
| | """ |
| | Extends a path-based environment variable's value with a new path and returns the updated value. It's up to the |
| | caller to set it in os.environ. |
| | """ |
| | paths = [p for p in os.environ.get(env_var_name, "").split(":") if len(p) > 0] |
| | paths.append(str(path_to_add)) |
| | return ":".join(paths) |
| |
|
| |
|
| | class PrepareForLaunch: |
| | """ |
| | Prepare a function that will launched in a distributed setup. |
| | |
| | Args: |
| | launcher (`Callable`): |
| | The function to launch. |
| | distributed_type ([`~state.DistributedType`]): |
| | The distributed type to prepare for. |
| | debug (`bool`, *optional*, defaults to `False`): |
| | Whether or not this is a debug launch. |
| | """ |
| |
|
| | def __init__(self, launcher, distributed_type="NO", debug=False): |
| | self.launcher = launcher |
| | self.distributed_type = DistributedType(distributed_type) |
| | self.debug = debug |
| |
|
| | def __call__(self, index, *args): |
| | if self.debug: |
| | world_size = int(os.environ.get("WORLD_SIZE")) |
| | rdv_file = os.environ.get("ACCELERATE_DEBUG_RDV_FILE") |
| | torch.distributed.init_process_group( |
| | "gloo", |
| | rank=index, |
| | store=torch.distributed.FileStore(rdv_file, world_size), |
| | world_size=world_size, |
| | ) |
| | elif self.distributed_type in ( |
| | DistributedType.MULTI_GPU, |
| | DistributedType.MULTI_NPU, |
| | DistributedType.MULTI_XPU, |
| | DistributedType.MULTI_CPU, |
| | ): |
| | |
| | os.environ["LOCAL_RANK"] = str(index) |
| | nproc = int(os.environ.get("NPROC", 1)) |
| | node_rank = int(os.environ.get("NODE_RANK", 0)) |
| | os.environ["RANK"] = str(nproc * node_rank + index) |
| |
|
| | os.environ["FORK_LAUNCHED"] = str(1) |
| | self.launcher(*args) |
| |
|