Basic HTML version of Foils prepared 21 October 1995

Foil 33 SIMD Architecture Issues

From New CPS615 Foils-- B 28 August 95 CPS615 Basic Simulation Track for Computational Science -- Fall Semester 95. by Geoffrey C. Fox
1 Node 1bit, 4 bit, 16 bit, 32 bit?
2 Interconnect issues similar to MIMD
3 Critical point -- is SIMD more cost effective than MIMD on a significant number of problems
  • What types of problems run well on SIMD?
  • Take a problem - e.g. SOR for PDE solution - that runs well on SIMD - is the MP-2 more cost effective than CM-5, Paragon, SP-1?
  • Need to compare SIMD and MIMD machines at "same technology" stage
4 Current Consensus is opposite of 1990 -- namely now MIMD dominates.
  • SIMD AMT DAP and Maspar aimed at Market niches
  • Defense signal processing
  • Business index sorting
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© on Tue Oct 7 1997