PyTorch 교육 컴파일러로 SageMaker 교육 작업 실행

PyTorch 모델을 컴파일하고 학습시키려면 다음 코드 예제와 같이 SageMaker Training Compiler를 사용하여 SageMaker PyTorch 추정기를 구성하십시오.

from sagemaker.pytorch import PyTorch, TrainingCompilerConfig

# the original max batch size that can fit into GPU memory without compiler
batch_size_native=12
learning_rate_native=float('5e-5')

# an updated max batch size that can fit into GPU memory with compiler
batch_size=64

# update learning rate
learning_rate=learning_rate_native/batch_size_native*batch_size

hyperparameters={
    "n_gpus": 1,
    "batch_size": batch_size,
    "learning_rate": learning_rate
}

pytorch_estimator=PyTorch(
    entry_point='train.py',
    source_dir='path-to-requirements-file', # Optional. Add this if need to install additional packages.
    instance_count=1,
    instance_type='ml.p3.2xlarge',
    framework_version='1.13.1',
    py_version='py3',
    hyperparameters=hyperparameters,
    compiler_config=TrainingCompilerConfig(),
    disable_profiler=True,
    debugger_hook_config=False
)

pytorch_estimator.fit()

를 사용하여 트랜스포머 모델을 컴파일하고 학습시키려면 다음 PyTorch 코드 예제와 같이 SageMaker Training Compiler를 사용하여 SageMaker Hugging Face 추정기를 구성하십시오.

from sagemaker.huggingface import HuggingFace, TrainingCompilerConfig

# the original max batch size that can fit into GPU memory without compiler
batch_size_native=12
learning_rate_native=float('5e-5')

# an updated max batch size that can fit into GPU memory with compiler
batch_size=64

# update learning rate
learning_rate=learning_rate_native/batch_size_native*batch_size

hyperparameters={
    "n_gpus": 1,
    "batch_size": batch_size,
    "learning_rate": learning_rate
}

pytorch_huggingface_estimator=HuggingFace(
    entry_point='train.py',
    instance_count=1,
    instance_type='ml.p3.2xlarge',
    transformers_version='4.21.1',
    pytorch_version='1.11.0',
    hyperparameters=hyperparameters,
    compiler_config=TrainingCompilerConfig(),
    disable_profiler=True,
    debugger_hook_config=False
)

pytorch_huggingface_estimator.fit()

훈련 스크립트를 준비하려면 다음 페이지를 참고하십시오.

end-to-end 예제를 찾으려면 다음 노트북을 참조하십시오.

PyTorch v1.12의 경우 추정기 클래스의 파라미터에 지정된 pytorch_xla 옵션을 추가하여 SageMaker 트레이닝 컴파일러로 분산 학습을 실행할 수 있습니다. distribution SageMaker PyTorch

from sagemaker.pytorch import PyTorch, TrainingCompilerConfig

# choose an instance type, specify the number of instances you want to use,
# and set the num_gpus variable the number of GPUs per instance.
instance_count=1
instance_type='ml.p3.8xlarge'
num_gpus=4

# the original max batch size that can fit to GPU memory without compiler
batch_size_native=16
learning_rate_native=float('5e-5')

# an updated max batch size that can fit to GPU memory with compiler
batch_size=26

# update learning rate
learning_rate=learning_rate_native/batch_size_native*batch_size*num_gpus*instance_count

hyperparameters={
    "n_gpus": num_gpus,
    "batch_size": batch_size,
    "learning_rate": learning_rate
}

pytorch_estimator=PyTorch(
    entry_point='your_training_script.py',
    source_dir='path-to-requirements-file', # Optional. Add this if need to install additional packages.
    instance_count=instance_count,
    instance_type=instance_type,
    framework_version='1.13.1',
    py_version='py3',
    hyperparameters=hyperparameters,
    compiler_config=TrainingCompilerConfig(),
    distribution ={'pytorchxla' : { 'enabled': True }},
    disable_profiler=True,
    debugger_hook_config=False
)

pytorch_estimator.fit()

PyTorch v1.11 이상에서는 파라미터에 지정된 pytorch_xla 옵션을 사용하여 분산 학습에 SageMaker 훈련 컴파일러를 사용할 수 있습니다. distribution

from sagemaker.huggingface import HuggingFace, TrainingCompilerConfig

# choose an instance type, specify the number of instances you want to use,
# and set the num_gpus variable the number of GPUs per instance.
instance_count=1
instance_type='ml.p3.8xlarge'
num_gpus=4

# the original max batch size that can fit to GPU memory without compiler
batch_size_native=16
learning_rate_native=float('5e-5')

# an updated max batch size that can fit to GPU memory with compiler
batch_size=26

# update learning rate
learning_rate=learning_rate_native/batch_size_native*batch_size*num_gpus*instance_count

hyperparameters={
    "n_gpus": num_gpus,
    "batch_size": batch_size,
    "learning_rate": learning_rate
}

pytorch_huggingface_estimator=HuggingFace(
    entry_point='your_training_script.py',
    instance_count=instance_count,
    instance_type=instance_type,
    transformers_version='4.21.1',
    pytorch_version='1.11.0',
    hyperparameters=hyperparameters,
    compiler_config=TrainingCompilerConfig(),
    distribution ={'pytorchxla' : { 'enabled': True }},
    disable_profiler=True,
    debugger_hook_config=False
)

pytorch_huggingface_estimator.fit()

지원되는 PyTorch v1.10.2 및 이전 버전의 경우 SageMaker 트레이닝 컴파일러에는 분산 교육 작업을 시작하기 위한 대체 메커니즘이 필요합니다. 분산 교육을 실행하려면 교육 컴파일러에서 SageMaker 분산 SageMaker 훈련 시작 프로그램 스크립트를 인수에 전달하고 훈련 스크립트를 entry_point 인수에 전달해야 합니다. hyperparameters 다음 코드 예제는 필요한 변경 사항을 적용하여 SageMaker Hugging Face 추정기를 구성하는 방법을 보여줍니다.

from sagemaker.huggingface import HuggingFace, TrainingCompilerConfig

# choose an instance type, specify the number of instances you want to use,
# and set the num_gpus variable the number of GPUs per instance.
instance_count=1
instance_type='ml.p3.8xlarge'
num_gpus=4

# the original max batch size that can fit to GPU memory without compiler
batch_size_native=16
learning_rate_native=float('5e-5')

# an updated max batch size that can fit to GPU memory with compiler
batch_size=26

# update learning rate
learning_rate=learning_rate_native/batch_size_native*batch_size*num_gpus*instance_count

training_script="your_training_script.py"

hyperparameters={
    "n_gpus": num_gpus,
    "batch_size": batch_size,
    "learning_rate": learning_rate,
    "training_script": training_script     # Specify the file name of your training script.
}

pytorch_huggingface_estimator=HuggingFace(
    entry_point='distributed_training_launcher.py',    # Specify the distributed training launcher script.
    instance_count=instance_count,
    instance_type=instance_type,
    transformers_version='4.17.0',
    pytorch_version='1.10.2',
    hyperparameters=hyperparameters,
    compiler_config=TrainingCompilerConfig(),
    disable_profiler=True,
    debugger_hook_config=False
)

pytorch_huggingface_estimator.fit()

런처 스크립트는 다음과 같아야 합니다. 이 스크립트에서는 훈련 스크립트를 래핑하고, 선택된 훈련 인스턴스의 크기에 따라 분산 훈련 환경을 구성합니다.

# distributed_training_launcher.py

#!/bin/python

import subprocess
import sys

if __name__ == "__main__":
    arguments_command = " ".join([arg for arg in sys.argv[1:]])
    """
    The following line takes care of setting up an inter-node communication
    as well as managing intra-node workers for each GPU.
    """
    subprocess.check_call("python -m torch_xla.distributed.sm_dist " + arguments_command, shell=True)