Message Passing Interface: Difference between revisions

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A side effect of MPI-2 standardization (completed in 1996) was clarification of the MPI-1 standard, creating the MPI-1.2 level.
 
It is important to note that MPI-1.2 programs, now deemed "legacy MPI-1 programs"," still work under the MPI-2 standard although some functions have been deprecated. This is important since many older programs use only the MPI-1 subset.
 
MPI is often compared with [[PVM]], which was a popular distributed environment and message passing system developed in 1989,