Birds of a Feather Archive

Open MPI State of the Union 2025

Authors: Howard Pritchard (Los Alamos National Laboratory (LANL)), George Bosilca (NVIDIA Corporation; University of Tennessee, Knoxville), Aurelien Bouteiller (Advanced Micro Devices, Inc. (AMD))

Abstract: Open MPI continues to drive the state of the art in HPC. This year, we've added new features, fixed bugs, improved performance, and collaborated with many across the HPC community. We'll discuss what Open MPI has accomplished over the past year and present a roadmap for the next year.

One of Open MPI's strengths lies in its diversity: we represent many different viewpoints across the HPC ecosystem. To that end, many developers from the community will be present to discuss and answer your questions both during and after the BoF.

Long Description: The Open MPI community has been hard at work on new and useful features, tweaking performance improvements, and overall improving the structure and clarity of the code. Our emphasis over the last year has been working towards improving support for accelerators, platforms, and environments, all within the context of a stable, full MPI-4.1 implementation (be sure to see the MPI Forum BOF for details on where MPI itself is going).

We consider such questions and feedback vital to the continuation of Open MPI -- our users and community are a huge portion of what helps Open MPI keep evolving in a direction that is genuinely useful. As with last year, we are soliciting questions from the web before the BOF; send us your questions, comments, and feedback and we'll discuss them during the BOF:

http://www.open-mpi.org/sc25

In this BOF, we'll present where Open MPI currently is and where it is going. Here are some of the highlights of what will be covered during the discussions:

- Overview of the v6.0.x release series - Update on the v5.0.x release series - Status of MPI-4.1 support - ABI support - Accelerator support - Improvements on collective operation performance

Be part of the discussion: submit your questions ahead of time and come hear where Open MPI is going, and how you can (and should!) join our efforts.

Website: http://www.open-mpi.org/sc25

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