Basic HTML version of Foils prepared August 7 98

Foil 21 Message-Passing Systems

From DoD HPF Training -- 1. Introduction to HPF DoD Training and Others -- 1995-98. by Chuck Koelbel -- Rice University
1 Program is based on relatively coarse-grain tasks
2 Separate address space and a processor number for each task
3 Data shared by explicit messages
  • Point-to-point and collective communications patterns
4 Examples: MPI, PVM, Occam
5 Advantages:
  • Close to hardware.
6 Disadvantages:
  • Many low-level details.
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