openucx

Communication layer for Message Passing (MPI)

UCX stands for Unified Communication X. UCX provides a communication layer for Message Passing (MPI), PGAS/OpenSHMEM libraries and RPC/data-centric applications. UCX utilizes networks such as RDMA (InfiniBand, RoCE, etc), Cray Gemini or Aries, for inter-node communication, or TCP. UCX supports transfer of data in either main memory (RAM) or GPU memory (through CUDA and ROCm libraries). UCX provides intra-node communication by using shared memory mechanisms.