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nccl in OpenPOWER P8NVLink system with P100 GPU #52

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alvintpwang opened this issue Nov 17, 2016 · 1 comment
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nccl in OpenPOWER P8NVLink system with P100 GPU #52

alvintpwang opened this issue Nov 17, 2016 · 1 comment

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@alvintpwang
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Does this tool support the P8NVLink system with P100 GPU? From the blog below, this tool need the GPUDirect but OpenPOWER system doesn't have GPUDirect. That is why I ask if this tool is ready for OpenPOWER P8NVLink system with P100 GPU.

Nvidia blog

https://devblogs.nvidia.com/parallelforall/fast-multi-gpu-collectives-nccl/
"NCCL makes extensive use of GPUDirect Peer-to-Peer direct access to push data between processors."
@spotluri
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spotluri commented May 6, 2019

NCCL should work on all power platforms and uses GPUDirect P2P or copies through system memory to get the best performance out of the platform.

@spotluri spotluri closed this as completed May 6, 2019
@acphile acphile mentioned this issue Sep 29, 2023
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@spotluri @alvintpwang