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Question using sharp on one A100 device #114

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LeiHaoa opened this issue Jul 28, 2023 · 1 comment
Open

Question using sharp on one A100 device #114

LeiHaoa opened this issue Jul 28, 2023 · 1 comment

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@LeiHaoa
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LeiHaoa commented Jul 28, 2023

Hi,
I have used a single A100 device to test the sharp performance when I test the RDMA performance, the device-to-device send/recv speed is about 18GB/s, when I use sharp to do allreduce operation (as only one process is used, there are no calculations i think.), the speed is 12GB/s. So my question what may cause the performance to degrade？

Thanks！
@shanleo2024
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Hi, how did you test the sharp successfully? I cannot run sharp as there is some error happens.
Which is in this issue:
#151

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@LeiHaoa @shanleo2024