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Missing warp reduce functions in HIP #10

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Epliz opened this issue Sep 1, 2023 · 2 comments
Open

Missing warp reduce functions in HIP #10

Epliz opened this issue Sep 1, 2023 · 2 comments

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@Epliz
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Epliz commented Sep 1, 2023

Hi,

Warp reduce functions are available in CUDA (cf. https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#warp-reduce-functions) but not in HIP.

There is equivalent functionality in HLSL shader model 6.0 supported by all AMD GPUs after the Vega architecture as far as I know: https://github.com/microsoft/DirectXShaderCompiler/wiki/Wave-Intrinsics .

So I think it can be implemented for HIP as well.

Could you please add them?

Best regards,
Epliz

@Epliz
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Epliz commented Sep 1, 2023

@cjatin , you were kind enough to have a look at #2 ; this one is quite similar, so I would appreciate if you could have a look at this one as well :) .

@cjatin
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cjatin commented Sep 4, 2023

Hello,
Will raise an internal issue to track this and #9

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