openmpi: Open MPI is an open source MPI-2 implementation.
openmpi:
openmpi: Open MPI is a project combining technologies and resources from
openmpi: several other projects (FT-MPI, LA-MPI, LAM/MPI, and PACX-MPI)
openmpi: in order to build the best Message Passing Interface (MPI)
openmpi: library available.  MPI is highly specialised computer software
openmpi: that allows many computers to communicate with one another; it
openmpi: is exclusively used in computer clusters.
openmpi: 
openmpi: Homepage: http://www.open-mpi.org/
openmpi: