gpu interconnect Concepts | Abhik Sarkar

January 29, 2025

Multi-GPU Communication: NVLink vs PCIe, NCCL, and Distributed Training

Compare NVLink vs PCIe bandwidth for multi-GPU training. Learn GPU topologies, NVSwitch, and choose between NCCL, Gloo, and MPI for distributed deep learning.

multi-GPU NVLink PCIe NCCL distributed training GPU interconnect NVSwitch AllReduce InfiniBand

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gpu interconnect

Concepts Related to gpu interconnect

Multi-GPU Communication: NVLink vs PCIe, NCCL, and Distributed Training