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What's multi-allreduce ? #234

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ProHuper opened this issue Jul 19, 2024 · 1 comment
Open

What's multi-allreduce ? #234

ProHuper opened this issue Jul 19, 2024 · 1 comment

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@ProHuper
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I have a question: What is multi-allreduce? Why are there no performance tests for multi-allreduce in nccl-tests, and how can the performance of multi-allreduce be tested?
@ProHuper
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I have a question: What is multi-allreduce? Why are there no performance tests for multi-allreduce in nccl-tests, and how can the performance of multi-allreduce be tested?

On two nodes, each with 8 GPUs, is multi-allreduce simply running multiple rank=16 allreduces simultaneously?

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