Downgrade NCCL version from 2.26.5 to 2.25.1 #4931
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Signed-off-by: Yiqing Yan <[email protected]>
Signed-off-by: Yiqing Yan <[email protected]>
chzblych
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Jun 5, 2025
byshiue
approved these changes
Jun 5, 2025
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/bot skip --comment "Test separately" |
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PR_Github #7634 [ skip ] triggered by Bot |
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PR_Github #7634 [ skip ] completed with state |
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This reverts commit 9e9c8f0.
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Signed-off-by: Yiqing Yan <[email protected]>
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Description
We find NCCL 2.26 introduces additional overhead when we use cuda_graph and lead to perf regression. So, we downgrade NCCL to 2.25.
Test Coverage
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