Dear MPI Forum Colleagues: The Persistent WG in collaboration with the Point-to-point WG plans to read a new proposal entitled "Partitioned Communication." https://github.com/mpi-forum/mpi-issues/issues/136 PR: https://github.com/mpi-forum/mpi-standard/pull/117 A brief explanation follows since this is new to many of you as a formal proposal for MPI-4: MPI currently provides all multi-threaded functionality through the existing interface that was designed primarily for single-threaded operation. There are no interfaces designed specifically to address the unique requirements of multi-threaded communication in MPI. Partitioned communication modes extend the behavior of persistent point-to-point communication using a non-local initialization call. Partitioned communication is "Partitioned" because it allows for multiple contributions of data to be made from potentially multiple threads/tasks to a single communication operation. This is the proposal formerly known as finepoints, which we've been working on for several years. Ryan Grant will lead this reading in Chicago. Regards, Tony Skjellum Anthony Skjellum, PhD Professor of Computer Science and Chair of Excellence Director, SimCenter University of Tennessee at Chattanooga (UTC) [email protected] [or [email protected]] cell: 205-807-4968