MPI Sessions, Persistent Collectives, and Partitioned Communication.
Matthew G. F. Dosanjh, Howard Prichard · 2022
Sessions 2 • In the MPI 4.0 standard • Sessions API supported in MPICH 4 release stream and Open MPI 5.0 release stream (not yet released) • Complete implementation of MPI 4 Sessions API • Requires PMIx 4 or newer (for Open MPI) • Set of examples are available at https://github.com/hppritcha/mpi_sessions_testsMPI_Session_init Query runtime for process sets MPI_Group_from_session_pset MPI_Comm_create_from_group