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.




This software is intended for use with the Mesabi k40 queue. It can be loaded into a Linux environment via:

module load nccl

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