Intel® oneAPI Collective Communications Library

Intel® oneAPI Collective Communications Library (oneCCL) provides an efficient implementation of communication patterns used in deep learning.

oneCCL features include:

  • Built on top of lower-level communication middleware – Intel® MPI Library and libfabrics.

  • Optimized to drive scalability of communication patterns by allowing to easily trade off compute for communication performance.

  • Works across various interconnects: InfiniBand*, Cornelis Networks*, and Ethernet.

  • Provides common API sufficient to support communication workflows within Deep Learning / distributed frameworks (such as PyTorch*, Horovod*).

oneCCL package comprises the oneCCL Software Development Kit (SDK) and the Intel® MPI Library Runtime components.