mirror of
https://github.com/huggingface/transformers.git
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Introduce PartialState as the device handler in the Trainer (#22752)
* Use accelerate for device management * Add accelerate to setup Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
This commit is contained in:
Zachary Mueller
GitHub
parent
50caa20628
commit
03462875cc
2
setup.py
2
setup.py
@ -260,7 +260,7 @@ extras["sklearn"] = deps_list("scikit-learn")
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extras["tf"] = deps_list("tensorflow", "onnxconverter-common", "tf2onnx", "tensorflow-text", "keras-nlp")
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extras["tf-cpu"] = deps_list("tensorflow-cpu", "onnxconverter-common", "tf2onnx", "tensorflow-text", "keras-nlp")
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extras["torch"] = deps_list("torch")
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extras["torch"] = deps_list("torch", "accelerate")
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extras["accelerate"] = deps_list("accelerate")
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if os.name == "nt": # windows
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@ -416,8 +416,7 @@ class Trainer:
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raise ValueError(
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"Using --sharded_ddp xxx together with --fsdp is not possible, deactivate one of those flags."
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)
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if args.local_rank == -1:
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if args.parallel_mode != ParallelMode.DISTRIBUTED:
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raise ValueError("Using sharded DDP only works in distributed training.")
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elif not is_fairscale_available():
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raise ImportError("Sharded DDP training requires fairscale: `pip install fairscale`.")
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@ -439,7 +438,7 @@ class Trainer:
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raise ValueError(
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"Using --fsdp xxx together with --deepspeed is not possible, deactivate one of those flags."
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)
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if not args.fsdp_config["xla"] and args.local_rank == -1:
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if not args.fsdp_config["xla"] and args.parallel_mode != ParallelMode.DISTRIBUTED:
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raise ValueError("Using fsdp only works in distributed training.")
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# dep_version_check("torch>=1.12.0")
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@ -551,7 +550,7 @@ class Trainer:
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# In case of pull, we need to make sure every process has the latest.
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if is_torch_tpu_available():
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xm.rendezvous("init git repo")
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elif args.local_rank != -1:
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elif args.parallel_mode == ParallelMode.DISTRIBUTED:
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dist.barrier()
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if self.args.should_save:
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@ -929,7 +928,7 @@ class Trainer:
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rank=smp.dp_rank(),
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batch_size=self.args.per_device_eval_batch_size,
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)
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elif self.args.local_rank != -1:
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elif self.args.parallel_mode == ParallelMode.DISTRIBUTED:
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return SequentialDistributedSampler(eval_dataset)
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else:
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return SequentialSampler(eval_dataset)
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@ -1551,7 +1550,7 @@ class Trainer:
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model = nn.parallel.DistributedDataParallel(
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model, device_ids=[int(os.getenv("SMDATAPARALLEL_LOCAL_RANK"))]
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)
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elif self.args.local_rank != -1:
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elif self.args.parallel_mode == ParallelMode.DISTRIBUTED:
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kwargs = {}
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if self.args.ddp_find_unused_parameters is not None:
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kwargs["find_unused_parameters"] = self.args.ddp_find_unused_parameters
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@ -1919,7 +1918,7 @@ class Trainer:
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if (
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(total_batched_samples % args.gradient_accumulation_steps != 0)
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and args.local_rank != -1
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and args.parallel_mode == ParallelMode.DISTRIBUTED
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and args._no_sync_in_gradient_accumulation
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):
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# Avoid unnecessary DDP synchronization since there will be no backward pass on this example.
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@ -2041,7 +2040,7 @@ class Trainer:
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# Wait for everyone to get here so we are sur the model has been saved by process 0.
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if is_torch_tpu_available():
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xm.rendezvous("load_best_model_at_end")
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elif args.local_rank != -1:
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elif args.parallel_mode == ParallelMode.DISTRIBUTED:
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dist.barrier()
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elif is_sagemaker_mp_enabled():
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smp.barrier()
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@ -2319,7 +2318,7 @@ class Trainer:
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np.random.set_state(checkpoint_rng_state["numpy"])
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torch.random.set_rng_state(checkpoint_rng_state["cpu"])
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if torch.cuda.is_available():
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if self.args.local_rank != -1:
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if self.args.parallel_mode == ParallelMode.DISTRIBUTED:
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torch.cuda.random.set_rng_state(checkpoint_rng_state["cuda"])
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else:
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try:
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@ -2413,7 +2412,7 @@ class Trainer:
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"cpu": torch.random.get_rng_state(),
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}
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if torch.cuda.is_available():
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if self.args.local_rank == -1:
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if self.args.parallel_mode == ParallelMode.DISTRIBUTED:
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# In non distributed, we save the global CUDA RNG state (will take care of DataParallel)
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rng_states["cuda"] = torch.cuda.random.get_rng_state_all()
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else:
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@ -2895,7 +2894,7 @@ class Trainer:
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def store_flos(self):
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# Storing the number of floating-point operations that went into the model
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if self.args.local_rank != -1:
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if self.args.parallel_mode == ParallelMode.DISTRIBUTED:
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self.state.total_flos += (
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distributed_broadcast_scalars([self.current_flos], device=self.args.device).sum().item()
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)
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@ -3310,7 +3309,7 @@ class Trainer:
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tensors = nested_xla_mesh_reduce(tensors, name)
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elif is_sagemaker_mp_enabled():
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tensors = smp_gather(tensors)
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elif self.args.local_rank != -1:
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elif self.args.parallel_mode == ParallelMode.DISTRIBUTED:
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tensors = distributed_concat(tensors)
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return tensors
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@ -3834,7 +3833,7 @@ class Trainer:
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tensors = nested_xla_mesh_reduce(tensors, name)
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elif is_sagemaker_mp_enabled():
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tensors = smp_gather(tensors)
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elif self.args.local_rank != -1:
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elif self.args.parallel_mode == ParallelMode.DISTRIBUTED:
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tensors = distributed_concat(tensors)
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return nested_numpify(tensors)
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@ -38,10 +38,8 @@ from .trainer_utils import (
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from .utils import (
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ExplicitEnum,
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cached_property,
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ccl_version,
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get_full_repo_name,
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is_accelerate_available,
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is_psutil_available,
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is_safetensors_available,
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is_sagemaker_dp_enabled,
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is_sagemaker_mp_enabled,
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@ -65,6 +63,10 @@ if is_torch_available():
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import torch
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import torch.distributed as dist
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if is_accelerate_available():
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from accelerate import PartialState
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from accelerate.utils import DistributedType
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if is_torch_tpu_available(check_device=False):
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import torch_xla.core.xla_model as xm
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@ -1122,12 +1124,6 @@ class TrainingArguments:
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)
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def __post_init__(self):
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# Handle --use_env option in torch.distributed.launch (local_rank not passed as an arg then).
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# This needs to happen before any call to self.device or self.n_gpu.
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env_local_rank = int(os.environ.get("LOCAL_RANK", -1))
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if env_local_rank != -1 and env_local_rank != self.local_rank:
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self.local_rank = env_local_rank
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# expand paths, if not os.makedirs("~/bar") will make directory
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# in the current directory instead of the actual home
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# see https://github.com/huggingface/transformers/issues/10628
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@ -1535,104 +1531,40 @@ class TrainingArguments:
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def _setup_devices(self) -> "torch.device":
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requires_backends(self, ["torch"])
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logger.info("PyTorch: setting up devices")
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if torch.distributed.is_available() and torch.distributed.is_initialized() and self.local_rank == -1:
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logger.warning(
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"torch.distributed process group is initialized, but local_rank == -1. "
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"In order to use Torch DDP, launch your script with `python -m torch.distributed.launch"
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)
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if self.no_cuda:
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device = torch.device("cpu")
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self._n_gpu = 0
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self.local_rank = get_int_from_env(
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["LOCAL_RANK", "MPI_LOCALRANKID", "OMPI_COMM_WORLD_LOCAL_RANK", "MV2_COMM_WORLD_LOCAL_RANK"],
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self.local_rank,
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)
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if self.local_rank != -1 and not torch.distributed.is_initialized():
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# Initializes distributed backend for cpu
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if self.xpu_backend not in ("mpi", "ccl", "gloo"):
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raise ValueError(
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"CPU distributed training backend is not properly set. "
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"Please set '--xpu_backend' to either 'mpi' or 'ccl' or 'gloo'."
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)
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if self.xpu_backend == "ccl":
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requires_backends(self, "oneccl_bind_pt")
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if ccl_version >= "1.12":
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import oneccl_bindings_for_pytorch # noqa: F401
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else:
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import torch_ccl # noqa: F401
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if int(os.environ.get("CCL_WORKER_COUNT", 0)) < 1:
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raise ValueError(
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"CPU distributed training backend is ccl. but CCL_WORKER_COUNT is not correctly set. "
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"Please use like 'export CCL_WORKER_COUNT = 1' to set."
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)
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# Try to get launch configuration from environment variables set by MPI launcher - works for Intel MPI, OpenMPI and MVAPICH
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rank = get_int_from_env(["RANK", "PMI_RANK", "OMPI_COMM_WORLD_RANK", "MV2_COMM_WORLD_RANK"], 0)
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size = get_int_from_env(["WORLD_SIZE", "PMI_SIZE", "OMPI_COMM_WORLD_SIZE", "MV2_COMM_WORLD_SIZE"], 1)
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local_size = get_int_from_env(
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["MPI_LOCALNRANKS", "OMPI_COMM_WORLD_LOCAL_SIZE", "MV2_COMM_WORLD_LOCAL_SIZE"], 1
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)
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os.environ["RANK"] = str(rank)
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os.environ["WORLD_SIZE"] = str(size)
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os.environ["LOCAL_RANK"] = str(self.local_rank)
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if not os.environ.get("MASTER_PORT", None):
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os.environ["MASTER_PORT"] = "29500"
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if not os.environ.get("MASTER_ADDR", None):
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if local_size != size or self.xpu_backend != "mpi":
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raise ValueError(
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"Looks like distributed multinode run but MASTER_ADDR env not set, "
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"please try exporting rank 0's hostname as MASTER_ADDR"
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)
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if (
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torch.get_num_threads() == 1
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and get_int_from_env(["OMP_NUM_THREADS", "MKL_NUM_THREADS"], 0) == 0
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and is_psutil_available()
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):
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import psutil
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num_cpu_threads_per_process = int(psutil.cpu_count(logical=False) / local_size)
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if num_cpu_threads_per_process == 0:
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num_cpu_threads_per_process = 1
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torch.set_num_threads(num_cpu_threads_per_process)
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logger.info(
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f"num_cpu_threads_per_process unset, we set it at {num_cpu_threads_per_process} to improve oob"
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" performance."
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)
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torch.distributed.init_process_group(
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backend=self.xpu_backend, rank=rank, world_size=size, timeout=self.ddp_timeout_delta
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)
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elif is_torch_tpu_available():
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device = xm.xla_device()
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self.distributed_state = PartialState(cpu=True)
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device = self.distributed_state.device
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self._n_gpu = 0
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self.local_rank = self.distributed_state.local_process_index
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elif is_sagemaker_mp_enabled():
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local_rank = smp.local_rank()
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device = torch.device("cuda", local_rank)
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self._n_gpu = 1
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elif is_sagemaker_dp_enabled():
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import smdistributed.dataparallel.torch.torch_smddp # noqa: F401
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dist.init_process_group(backend="smddp", timeout=self.ddp_timeout_delta)
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self.local_rank = int(os.getenv("SMDATAPARALLEL_LOCAL_RANK"))
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device = torch.device("cuda", self.local_rank)
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self._n_gpu = 1
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torch.cuda.set_device(device)
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elif self.deepspeed:
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# deepspeed inits torch.distributed internally
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from .deepspeed import is_deepspeed_available
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if not is_deepspeed_available():
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raise ImportError("--deepspeed requires deepspeed: `pip install deepspeed`.")
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import deepspeed
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deepspeed.init_distributed(timeout=timedelta(seconds=self.ddp_timeout))
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# workaround for setups like notebooks where the launcher can't be used,
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# but deepspeed requires a dist env.
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# env LOCAL_RANK could be set manually by the user, or via init_distributed if mpi4py is installed
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self.local_rank = int(os.environ.get("LOCAL_RANK", "-1"))
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device = torch.device("cuda", self.local_rank)
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self.distributed_state = PartialState(timeout=timedelta(seconds=self.ddp_timeout))
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self._n_gpu = 1
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elif self.local_rank == -1:
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device = self.distributed_state.device
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else:
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self.distributed_state = PartialState(backend=self.xpu_backend)
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device = self.distributed_state.device
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self._n_gpu = 1
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if (
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torch.distributed.is_available()
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and torch.distributed.is_initialized()
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and self.distributed_state.distributed_type != DistributedType.NO
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):
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logger.warning(
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"torch.distributed process group is initialized, but parallel_mode == ParallelMode.DISTRIBUTED. "
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"In order to use Torch DDP, launch your script with `python -m torch.distributed.launch"
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)
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if is_torch_tpu_available():
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device = self.distributed_state.device
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self._n_gpu = 0
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elif is_sagemaker_dp_enabled():
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self._n_gpu = 1
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elif self.distributed_state.distributed_type == DistributedType.NO:
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if self.use_mps_device:
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if not torch.backends.mps.is_available():
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if not torch.backends.mps.is_built():
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@ -1665,24 +1597,13 @@ class TrainingArguments:
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# trigger an error that a device index is missing. Index 0 takes into account the
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# GPUs available in the environment, so `CUDA_VISIBLE_DEVICES=1,2` with `cuda:0`
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# will use the first GPU in that env, i.e. GPU#1
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# device = self.distributed_state.device
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device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
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# Sometimes the line in the postinit has not been run before we end up here, so just checking we're not at
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# the default value.
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self._n_gpu = torch.cuda.device_count()
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else:
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# Here, we'll use torch.distributed.
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# Initializes the distributed backend which will take care of synchronizing nodes/GPUs
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if not torch.distributed.is_initialized():
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if self.xpu_backend and self.xpu_backend in ("mpi", "gloo"):
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torch.distributed.init_process_group(backend=self.xpu_backend, timeout=self.ddp_timeout_delta)
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else:
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torch.distributed.init_process_group(backend="nccl", timeout=self.ddp_timeout_delta)
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device = torch.device("cuda", self.local_rank)
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self._n_gpu = 1
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if device.type == "cuda":
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torch.cuda.set_device(device)
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return device
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@property
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@ -1725,7 +1646,7 @@ class TrainingArguments:
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return ParallelMode.SAGEMAKER_MODEL_PARALLEL
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elif is_sagemaker_dp_enabled():
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return ParallelMode.SAGEMAKER_DATA_PARALLEL
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elif self.local_rank != -1:
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elif hasattr(self, "distributed_state") and (self.distributed_state.distributed_type != DistributedType.NO):
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return ParallelMode.DISTRIBUTED
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elif self.n_gpu > 1:
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return ParallelMode.NOT_DISTRIBUTED
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@ -1745,7 +1666,7 @@ class TrainingArguments:
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return smp.dp_size() if not smp.state.cfg.prescaled_batch else smp.rdp_size()
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elif is_sagemaker_dp_enabled():
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return dist.get_world_size()
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elif self.local_rank != -1:
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elif self.parallel_mode == ParallelMode.DISTRIBUTED:
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return torch.distributed.get_world_size()
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return 1
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@ -1761,7 +1682,7 @@ class TrainingArguments:
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return smp.dp_rank() if not smp.state.cfg.prescaled_batch else smp.rdp_rank()
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elif is_sagemaker_dp_enabled():
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return dist.get_rank()
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elif self.local_rank != -1:
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elif self.parallel_mode == ParallelMode.DISTRIBUTED:
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return torch.distributed.get_rank()
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return 0
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@ -1777,7 +1698,7 @@ class TrainingArguments:
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return smp.local_rank()
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elif is_sagemaker_dp_enabled():
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return dist.get_rank()
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elif self.local_rank != -1:
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elif self.parallel_mode == ParallelMode.DISTRIBUTED:
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return self.local_rank
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return 0
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@ -12,7 +12,6 @@
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sys
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from typing import Dict
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from transformers import EvalPrediction, HfArgumentParser, TrainingArguments, is_torch_available
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@ -23,6 +22,7 @@ from transformers.testing_utils import (
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require_torch_multi_gpu,
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require_torch_neuroncore,
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)
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from transformers.training_args import ParallelMode
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from transformers.utils import logging
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@ -66,15 +66,13 @@ if is_torch_available():
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class TestTrainerDistributedNeuronCore(TestCasePlus):
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@require_torch_neuroncore
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def test_trainer(self):
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distributed_args = f"""
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-m torch.distributed.run
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--nproc_per_node=2
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distributed_args = f"""--nproc_per_node=2
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--master_port={get_torch_dist_unique_port()}
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{self.test_file_dir}/test_trainer_distributed.py
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""".split()
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output_dir = self.get_auto_remove_tmp_dir()
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args = f"--output_dir {output_dir}".split()
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cmd = [sys.executable] + distributed_args + args
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cmd = ["torchrun"] + distributed_args + args
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execute_subprocess_async(cmd, env=self.get_env())
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# successful return here == success - any errors would have caused an error in the sub-call
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@ -82,15 +80,13 @@ class TestTrainerDistributedNeuronCore(TestCasePlus):
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class TestTrainerDistributed(TestCasePlus):
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@require_torch_multi_gpu
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def test_trainer(self):
|
||||
distributed_args = f"""
|
||||
-m torch.distributed.run
|
||||
--nproc_per_node={torch.cuda.device_count()}
|
||||
distributed_args = f"""--nproc_per_node={torch.cuda.device_count()}
|
||||
--master_port={get_torch_dist_unique_port()}
|
||||
{self.test_file_dir}/test_trainer_distributed.py
|
||||
""".split()
|
||||
output_dir = self.get_auto_remove_tmp_dir()
|
||||
args = f"--output_dir {output_dir}".split()
|
||||
cmd = [sys.executable] + distributed_args + args
|
||||
cmd = ["torchrun"] + distributed_args + args
|
||||
execute_subprocess_async(cmd, env=self.get_env())
|
||||
# successful return here == success - any errors would have caused an error in the sub-call
|
||||
|
||||
@ -105,7 +101,7 @@ if __name__ == "__main__":
|
||||
|
||||
logger.warning(
|
||||
f"Process rank: {training_args.local_rank}, device: {training_args.device}, n_gpu: {training_args.n_gpu}, "
|
||||
f"distributed training: {training_args.local_rank != -1}"
|
||||
f"distributed training: {training_args.parallel_mode != ParallelMode.NOT_DISTRIBUTED}"
|
||||
)
|
||||
|
||||
# Essentially, what we want to verify in the distributed case is that we get all samples back,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user