<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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Nearby terms: message digest function « Message Handling System « message passing « Message Passing Interface » message switching » Message Transfer Agent » Message Transport Agent