< communications , protocol > A de facto standard for communication among the nodes running a parallel program on a distributed memory system . MPI is a library of routines that can be called from Fortran and C programs. MPI's advantage over older message passing libraries is that it is both portable (because MPI has been implemented for almost every distributed memory architecture ) and fast (because each implementation is optimised for the hardware it runs on).
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(1997-06-09)