Basic HTML version of Foils prepared August 29 98

Foil 3 Message Passing Interface (MPI)

From Designing and Building Parallel Programs 3: MPI Message Passing System DoD Modernization Tutorial -- 1995-1998. by Ian Foster, Gina Goff, Ehtesham Hayder, Chuck Koelbel
A standard message-passing library
  • p4, NX, PVM, Express, PARMACS are precursors
An MPI program defines a set of processes
  • (usually one process per node)
... that communicate by calling MPI functions
  • (point-to-point and collective)
... and can be constructed in a modular fashion
  • (communicators are the key)

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