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Open MPI

Open MPI is a project combining technologies and resources from several other projects (FT-MPI, LA-MPI, LAM/MPI, and PACX-MPI) in order to build the best Message Passing Interface (MPI) library available. A completely new MPI-2 compliant implementation, Open MPI offers advantages for system and software vendors, application developers and computer science researchers. Open MPI represents the merger between three well-known MPI implementations:

FT-MPI from the University of Tennessee
LA-MPI from Los Alamos National Laboratory
LAM/MPI from Indiana University

with contributions from the PACX-MPI team at the University of Stuttgart. These four institutions comprise the founding members of the Open MPI development team.

Each of these MPI implementations excelled in one or more areas. The driving motivation behind Open MPI is to bring the best ideas and technologies from the individual projects and create one world-class open source MPI implementation that excels in all areas. The Open MPI project has several top-level goals:

Create a free, open source software, peer-reviewed, production-quality complete MPI-2 implementation.
Provide extremely high, competitive performance (latency, bandwidth, ...pick your favorite metric).
Directly involve the High-performance computing community with external development and feedback (vendors, 3rd party researchers, users, etc.).
Provide a stable platform for 3rd party research and commercial development.
Help prevent the "forking problem" common to other MPI projects.
Support a wide variety of High-performance computing platforms and environments.

_{^{All text used in this article is
available under the GNU Free Documentation License. It uses material from
the Wikipedia article "Open MPI".}}