nccl

Summary

• Support Level: Secondary Support

• Software Access Level: Open Access

• Home Page: https://developer.nvidia.com/nccl

Software Description

From the NCCL website: NCCL (pronounced “Nickel”) is a stand-alone library of standard collective communication routines, such as all-gather, reduce, broadcast, etc., that have been optimized to achieve high bandwidth over PCIe. NCCL supports an arbitrary number of GPUs installed in a single node and can be used in either single- or multi-process (e.g., MPI) applications.

General Linux

This software is intended for use on partitions with GPUs available. It can be loaded into a Linux environment via:

module load nccl