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Unified Communication X (UCX) is an award winning, optimized production proven-communication framework for modern, high-bandwidth and low-latency networks.
UCX exposes a set of abstract communication primitives that utilize the best of available hardware resources and offloads. These include RDMA (InfiniBand and RoCE), TCP, GPUs, shared memory, and network atomic operations.
Building UCX is typically a combination of running "configure" and "make". If using a release tarball execute the following commands to install the UCX system from within the directory at the top of the tree:
NOTE: Compiling support for various networks or other specific hardware may require additional command line flags when running configure.
NOTE the -c flag sets CPU affinity. If running both >commands on same host, make sure you set the affinity to different CPU cores.
UCX version 1.8.0 has a bug that may cause data corruption when TCP transport is used in conjunction with shared memory transport. It is advised to upgrade to UCX version 1.9.0 and above. UCX versions released before 1.8.0 don't have this bug.
