"SLC5X: Letter M: mpi-selector
mpi-selector - Provides site-wide and per-user MPI implementation selection
||Scientific Linux CERN, http://cern.ch/linux
A simple tool that allows system administrators to set a site-wide
default for which MPI implementation is to be used, but also allow
users to set their own default MPI implementation, thereby overriding
the site-wide default.
The default can be changed easily via the mpi-selector command --
editing of shell startup files is not required.