Application Trends

• Demand for cycles fuels advances in hardware, and vice-versa

  • Cycle drives exponential increase in microprocessor performance (this is largely from low-end)
  • Drives parallel architecture harder: most demanding applications (this is high end driver)

• Range of performance demands

  • Need range of system performance with progressively increasing cost
  • Platform pyramid

• Goal of applications in using parallel machines: Speedup

  • Speedup (p processors) =

• For a fixed problem size (input data set), performance = 1/time

  • Speedup fixed problem (p processors) =

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