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TA0049 - Optimizing NCCL for Use with Omni-Path

This technical advisory addresses the issue where the NVIDIA Collectives Communications Library (NCCL) does not come with an optimized transport for Omni-Path. Use of the Verbs transport does not take maximum advantage of the Omni-Path HFI ASIC and GPUDirect support that is available with Omni-Path Architecture PSM2 and hfi1.

Type: Technical Advisory

Operating System:

Revision:

File Type: pdf

Last Updated: N/A

Release Version:

Release Date:

File Size: 262.27 KB

Publish Date: May 10, 2021