The NVIDIA Collective Communications Library (NCCL) is essential for fast GPU-to-GPU communication in AI workloads, using various optimizations and tuning to…
The NVIDIA Collective Communications Library (NCCL) is essential for fast GPU-to-GPU communication in AI workloads, using various optimizations and tuning to boost performance. However, as platforms diversify, default NCCL settings may not always deliver optimal results. This post discusses why tuning is important and how users can enhance performance with custom tuner plugins. It also presents a…
