Modern High-Performance Computing (HPC) architectures have developed the need for
scalable hybrid programming models. The latest Message Passing Interface (MPI) 4.0 …

Modern HPC systems require efficient hybrid programming model to utilize their hardware
resources effectively. The Message Passing Interface (MPI) has accommodated next …

Version 4.0 of the Message Passing Interface standard introduced the concept of Partitioned
Communication, which adds support for multiple contributions to a communication buffer …

The Open MPI for Exascale (OMPI-X) project was one of two in the Exascale Computing
Project (ECP) focused on advancing the MPI ecosystem. The OMPI-X team worked with …

ExaMPI is a modern, C++ 17+ Mpi implementation designed for modularity, extensibility, and
understandability. In this work, we overview functionality new to ExaMPI since its initial …

Traditional point-to-point communication sends data only after the entirety of the data is
available. This includes situations where multiple actors (eg, threads) contribute to the send …

The large variety of production implementations of the message passing interface (MPI)
each provide unique and varying underlying algorithms. Each emerging supercomputer …

Abstract The Message Passing Interface (MPI) has been the dominant message passing
solution for scientific computing for decades. MPI point‐to‐point communications are highly …

Modern HPC systems require efficient hybrid programming model to utilize their hardware
resources effectively. The Message Passing Interface (MPI) has accommodated next …

This report introduces partitioned communication, a new MPI 4.0 interface that enables early
bird communication by overlapping communication and computation. By partitioning …