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Stream semantics difference between CUDA/HIP

See original GitHub issue

https://github.com/cupy/cupy/pull/5091#issuecomment-821946143 I think this needs to be documented in CuPy as users are almost impossible to know what’s happening. We may need to consider providing some remedies for this (e.g., wait until hipStreamQuery succeeds before destroying a stream when in HIP).

Issue Analytics

State:
Created 2 years ago
Reactions:1
Comments:23 (23 by maintainers)

Top GitHub Comments

3reactions

amathews-amdcommented, Apr 29, 2021

I found that this might be the case. See https://github.com/ROCmSoftwarePlatform/rocBLAS/pull/1171

Paging @ekuznetsov139

2reactions

takagicommented, May 18, 2021

Hmm… the original test https://github.com/cupy/cupy/pull/5091 still fails with ROCm 4.2.0. I also checked the code you showed at https://github.com/cupy/cupy/issues/5163#issuecomment-840086050 and it passed on the same environment. It is supposed that I have something to investigate further…

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