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May I ask if there is such a mechanism in UCX, similar to NCCL's PXN? For example, when GPU0 of node 1 sends data to GPU1 of node 2, GPU0 of node 1 first copies the data to GPU1 through nv switch, and then GPU1 of node 1 sends the data to GPU1 of node 2 through IB network card using GDR. |
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Answered by
brminich
May 21, 2025
Replies: 1 comment
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No, it is currently not supported |
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Answer selected by
EmmaLee-c
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No, it is currently not supported