how can i run nccl-test use max bandwidth

NVIDIA / nccl-tests

NCCL Tests

BSD 3-Clause "New" or "Revised" License

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how can i run nccl-test use max bandwidth #186

Open liuxingbo12138 opened 8 months ago

liuxingbo12138 commented 8 months ago

I have two h100 servers, each connected to 8 400G Nics. How can I run nccl-test to run all the 8 400G Nics, and require GDR traffic to avoid the memory bandwidth becoming the bottleneck,nccl can do it?