Basic HTML version of Foils prepared 24 August 98

Foil 22 Distributed Memory Machines

From Master Foilset for CPS615 Introduction -- Material from Culler and Koelbel Computational Science for Simulations -- Fall Semester 1998. by Geoffrey C. Fox, Nancy McCracken
1 Every processor has a memory others can't access.
2 Advantages:
  • Relatively easy to design and build
  • Predictable (if modest) behavior
  • Can be scalable
  • Can hide latency of communication
3 Disadvantages:
  • Hard to program
  • Program and O/S (and sometimes data) must be replicated
in Table To:

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