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support using RoundRobin ProcessGroup in Distributed training #1213
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Summary: support using RoundRobin ProcessGroup in Distributed training RoundRobin ProcessGroup will use multi-stream for gradient sync. Usually it could give us 15%+ speed up with no gradient accumulation. Reviewed By: hudeven Differential Revision: D19138726 fbshipit-source-id: bc52df1ebeb9bd69a5239507dab866533a56f6b5
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Summary:
support using RoundRobin ProcessGroup in Distributed training
RoundRobin ProcessGroup will use multi-stream for gradient sync.
Usually it could give us 15%+ speed up with no gradient accumulation.
Reviewed By: hudeven
Differential Revision: D19138726