Basic HTML version of Foils prepared August 23 1996

Foil 5 The Current HPCC Program Execution Model (PEM) illustratrated by MPI/HPF

From Software Strategy for JNAC (PetaFlops) Initiative JNAC (PetaFlops) Presentation -- August 28,1996. by Geoffrey C. Fox
MPI represents data movement with the abstraction for a structure of machines with just two levels of memory
  • On Processor and Off Processor
This was a reasonable model in the past but even today fails to represent complex memory structure of typical microprocessor node
Note HPF Distribution Model has similar (to MPI) underlying relatively simple Abstraction for PEM

Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

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