Basic HTML version of Foils prepared August 29 98

Foil 74 Three Systems Compared

From Designing and Building Parallel Programs 2: openMP Shared Memory Programming Language DoD Modernization Tutorial -- 1995-1998. by Ian Foster, Gina Goff, Ehtesham Hayder, Chuck Koelbel(Some foils prepared by Kuck & Associates, Inc.)
1 HPF
  • Good abstraction: data parallelism
  • System can hide many details from programmer
    • Two-edged sword
  • Well-suited for regular problems on machines with locality
2 MPI
  • Lower-level abstraction: message passing
  • System works everywhere, is usually the first tool available on new systems
  • Well-suited to handling data on distributed memory machines, but requires work up front
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