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Inter-GPU Communication with NCCL

Sylvain Jeaugey, NVIDIA | Cliff Woolley, NVIDIA | Sreeram Potluri, NVIDIA | Ke Wen, NVIDIA | Nathan Luehr, NVIDIA

GTC 2020

NCCL (NVIDIA Collective Communication Library) optimizes inter-GPU communication on PCI, NVIDIA NVLink, and Infiniband, powering large-scale training for most DL frameworks, including Tensorflow, PyTorch, MXNet, and Chainer. Come discuss NCCL's performance, features, and latest advances. Connect directly with NVIDIA Experts to get answers to all of your questions on GPU programming and code optimization, share your experience, and get guidance on how to achieve maximum performance on NVIDIA's platform.

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