[PT-D][Checkpoint]Add MultiThreaded FileSystemWriter for distributed checkpointing and Update tests #87987
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/87987
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…checkpointing and Update tests (pytorch#87987) This PR includes: Changes from @kumpera (pytorch#86327): adding MultiThreaded FileSystemWriter for distributed checkpointing, which adds two knobs to FileSystemWriter: thread_count and per_thread_copy_ahead. This increases up to 50% performance improvement on 32 GPUS workloads on AWS. Add parametrize tests to /test/distributed/_shard/checkpoint/test_file_system_checkpoint.py and /test/distributed/_shard/checkpoint/test_file_system_checkpoint_cpu.py Modify @with_comms in ShardedTensorTestBase to take in *args and **kwargs. Tests: ``` python3 test/distributed/checkpoint/test_file_system_checkpoint_cpu.py ``` test/distributed/checkpoint/test_file_system_checkpoint.py(GPU tests) runs fine locally but would timeout on CI. We will use thread-based PG and update this test in following PR. [T134844615] ## Add docstring and update comments in the following PRs. Pull Request resolved: pytorch#87987 Approved by: https://github.com/fduwjj
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This PR includes:
Changes from @kumpera (#86327): adding MultiThreaded FileSystemWriter for distributed checkpointing, which adds two knobs to FileSystemWriter: thread_count and per_thread_copy_ahead. This increases up to 50% performance improvement on 32 GPUS workloads on AWS.
Add parametrize tests to /test/distributed/_shard/checkpoint/test_file_system_checkpoint.py and /test/distributed/_shard/checkpoint/test_file_system_checkpoint_cpu.py
Modify @with_comms in ShardedTensorTestBase to take in *args and **kwargs.
Tests:
test/distributed/checkpoint/test_file_system_checkpoint.py(GPU tests) runs fine locally but would timeout on CI. We will use thread-based PG and update this test in following PR.
[T134844615]
Add docstring and update comments in the following PRs.
cc @VitalyFedyunin @jgong5 @mingfeima @XiaobingSuper @sanchitintel @ashokei @jingxu10