New Features in MPI 4.0

Explore the major updates and new functionalities introduced in MPI-4.0, the latest version of the Message Passing Interface standard, in this 56-minute seminar talk by Dr. Rolf Rabenseifner from the High Performance Computing Center Stuttgart (HLRS). Gain insights into key additions such as large-count routine versions, persistent collectives, partitioned communications for hybrid MPI+OpenMP, the Sessions Model for library developers, hardware-based communicator splitting, neighbor communication clarifications, application info assertions, and improved error handling definitions. Understand the practical implications of these changes, their importance, and the underlying concepts. Get a glimpse into the future with an outlook on MPI-4.1 and 5.0, including a discussion on MPI progress rules and errata on the MPI shared memory interface. Access the accompanying slides for a comprehensive overview of the topic.