Protocol

RCCL

ROCm Collective Communications Library

Lab ready Full lab

AMD ROCm Collective Communications Library — the ROCm counterpart to NCCL for GPU collectives. It uses Infinity Fabric, PCIe, and RDMA paths with an API largely mirrored from NCCL for portability. Topology and RCCL env knobs are the usual performance levers.

Domains

ai

Layers

application

Tags

collectivesamdrocmallreduce

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NCCL

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MPI

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