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Don't use cupy NCCL for AMD backends #2855

Merged
merged 2 commits into from
Feb 14, 2024
Merged

Don't use cupy NCCL for AMD backends #2855

merged 2 commits into from
Feb 14, 2024

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WoosukKwon
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CuPy doesn't support the recent versions of ROCm (e.g., 5.6 and 5.7) and cupy-rocm-5.0 seems to be incompatible with these recent rocm versions. Hence, we use PyTorch NCCL (RCCL) instead of CuPy NCCL (RCCL) for AMD GPUs.

@WoosukKwon WoosukKwon marked this pull request as ready for review February 13, 2024 20:32
@WoosukKwon WoosukKwon changed the title Don't import cupy for AMD backends Don't use cupy NCCL for AMD backends Feb 13, 2024
@WoosukKwon WoosukKwon mentioned this pull request Feb 13, 2024
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@WoosukKwon WoosukKwon merged commit 25e86b6 into main Feb 14, 2024
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@WoosukKwon WoosukKwon deleted the rocm-cupy branch February 14, 2024 20:30
xjpang pushed a commit to xjpang/vllm that referenced this pull request Feb 20, 2024
xjpang pushed a commit to xjpang/vllm that referenced this pull request Feb 22, 2024
xjpang pushed a commit to xjpang/vllm that referenced this pull request Mar 4, 2024
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