Open MPI
Open MPI is a Message Passing Interface library project combining technologies and resources from several other projects. It is used by many TOP500 supercomputers including Roadrunner, which was the world's fastest supercomputer from June 2008 to November 2009, and K computer, the fastest supercomputer from June 2011 to June 2012.
Overview
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
The Open MPI developers selected these MPI implementations as excelling in one or more areas. Open MPI aims to use 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 specifies several top-level goals:
- to create a free, open source software, peer-reviewed, production-quality complete MPI-3.0 implementation
- to provide extremely high, competitive performance
- to involve the high-performance computing community directly with external development and feedback
- to provide a stable platform for 3rd-party research and commercial development
- to help prevent the "forking problem" common to other MPI projects
- to support a wide variety of high-performance computing platforms and environments
Code modules
- OMPI - MPI code
- ORTE - the Open Run-Time Environment
- OPAL - the Open Portable Access Layer
Commercial implementations
- Sun HPC Cluster Tools - beginning with version 7, Sun switched to Open MPI
- Bullx MPI—In 2010 Bull announced the release of bullx MPI, based on Open MPI
Consortium