Basic HTML version of Foils prepared 2 September 1997

Foil 37 What Affects Speed Up ?

From CPS615 Laplace Example -- Programming Models and Performance CPS615 Basic Simulation Track for Computational Science -- Fall Semester 97. by Geoffrey C. Fox
The speed up S is reduced from P for two reasons
  • Load Imbalance
  • Communication Overhead
In some cases, one also has effects from parallel method being different from sequential method but that is not relevant here

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