Open MPI v5.0.x

The Open MPI Project is an open source implementation of the Message Passing Interface (MPI) specification that is developed and maintained by a consortium of academic, research, and industry partners. Open MPI is therefore able to combine the expertise, technologies, and resources from all across the High Performance Computing community in order to build the best MPI library available. Open MPI offers advantages for system and software vendors, application developers and computer science researchers.

Documentation locations

Documentation for Open MPI can be found in the following locations:

Open MPI version

Documentation location

v5.0.0 and later

Web: https://docs.open-mpi.org/

Tarball: docs/_build/html/index.html

Installed: $prefix/share/doc/openmpi/html/index.html

v4.1.x and earlier

See the legacy Open MPI FAQ and the README file in the source tarball.

For example:

Release announcements

The best way to hear about new Open MPI releases is via the low-volume announcement mailing list.

Additionally, if you are a downstream packager of Open MPI (e.g., you package Open MPI for an operating system distribution), you may wish to sign up for the low-volume packagers list.

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