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Add support for AWS SageMaker. #1868

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merged 2 commits into from
Mar 30, 2022
Merged

Add support for AWS SageMaker. #1868

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8406187
Add support for AWS SageMaker.
matherit Mar 29, 2022
ec983b6
Merge branch 'master' into add-aws-sagemaker-support
jeffra Mar 29, 2022
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24 changes: 24 additions & 0 deletions deepspeed/utils/distributed.py
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,8 @@ def init_distributed(dist_backend="nccl",
)
if in_aml() and not in_dlts():
patch_aml_env_for_torch_nccl_backend(verbose=verbose)
elif in_aws_sm():
patch_aws_sm_env_for_torch_nccl_backend(verbose=verbose)
else:
mpi_discovery(distributed_port=distributed_port, verbose=verbose)

Expand Down Expand Up @@ -100,6 +102,11 @@ def in_aml():
return 'AZUREML_EXPERIMENT_ID' in os.environ


def in_aws_sm():
# Are we running inside an AWS SageMaker environment?
return 'SM_TRAINING_ENV' in os.environ


def in_dlts():
# Are we running on a DLTS cluster?
return 'DLTS_JOB_ID' in os.environ
Expand Down Expand Up @@ -140,3 +147,20 @@ def patch_aml_env_for_torch_nccl_backend(master_port=6105, verbose=True):
os.environ['WORLD_SIZE'],
os.environ['MASTER_ADDR'],
os.environ['MASTER_PORT']))


def patch_aws_sm_env_for_torch_nccl_backend(verbose=True):
"""Helper routine to get and set environment variables when running inside an AWS SageMaker environment.
"""
os.environ["RANK"] = os.environ["OMPI_COMM_WORLD_RANK"]
os.environ['LOCAL_RANK'] = os.environ["OMPI_COMM_WORLD_LOCAL_RANK"]
os.environ["WORLD_SIZE"] = os.environ["OMPI_COMM_WORLD_SIZE"]

if verbose:
logger.info(
"Discovered AWS SageMaker settings of world_rank={}, local_rank={}, world_size={}, master_addr={}, master_port={}"
.format(os.environ['RANK'],
os.environ['LOCAL_RANK'],
os.environ['WORLD_SIZE'],
os.environ['MASTER_ADDR'],
os.environ['MASTER_PORT']))