[train] update TORCH_NCCL_ASYNC_ERROR_HANDLING env var #47292
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Signed-off-by: Matthew Deng <matt@anyscale.com>
justinvyu
approved these changes
Aug 23, 2024
| if backend == "nccl": | ||
| # See https://github.com/pytorch/pytorch/blob/c263bd43e8e8502d4726643bc6fd046f0130ac0e/torch/distributed/distributed_c10d.py#L803-L823 # noqa: E501 | ||
| # We do not use TORCH_NCCL_BLOCKING_WAIT due to performance overhead. | ||
| if Version(torch.__version__) < Version("2.2.0"): |
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how'd you find this version in the end?
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Oops I haven't updated the PR description, but it was added in pytorch/pytorch@8f8722e!
Co-authored-by: Justin Yu <justinvyu@anyscale.com> Signed-off-by: matthewdeng <matthew.j.deng@gmail.com>
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Why are these changes needed?
Fixes this warning:
This environment variable was changed in
torch 2.2.0: pytorch/pytorch@8f8722e.More details about this environment variable can be found here: https://github.com/pytorch/pytorch/blob/dc8bb2636c5412c68e72dc6e33a6589683d8fd12/docs/source/torch_nccl_environment_variables.rst.
Related issue number
Closes #47286
Checks
git commit -s) in this PR.scripts/format.shto lint the changes in this PR.method in Tune, I've added it in
doc/source/tune/api/under thecorresponding
.rstfile.