HELP! * YELLOW=global GREY=local Global HTML version of Foils prepared July 6 1996

Foil 20 What software systems are appropriate for what problem architectures -- I?

From HPCC Current Status: Software Trip to China -- July 12-28,96. by Geoffrey Fox * See also color IMAGE
This classification is summarized in Parallel Computing Works Survey
Synchronous:Regular in Space and Time
  • Tightly Coupled Synchronous
  • e.g. Seismic modeling, "Find proton mass", Matrix algebra
High Performance Fortran (HPF), CMFortran, Crystal, C*, APL are natural and can be automatically parallelized on any machine.
  • Data or Geometric Parallelism
Asynchronous:Irregular in Space and Time
  • Loosely Coupled Asynchronous
  • Object oriented languages: Strand, PCN, Linda, CC++
  • Process or Functional Parallelism
  • Need more examples!
  • "No special structure" to be exploited
  • Use statistical load balancing and decomposition methods
Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

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