Performance Prediction of Data-Dependent Task Parallel Programs

  • Authors:
  • Hasyim Gautama;Arjan J. C. van Gemund

  • Affiliations:
  • -;-

  • Venue:
  • Euro-Par '01 Proceedings of the 7th International Euro-Par Conference Manchester on Parallel Processing
  • Year:
  • 2001

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Abstract

Current analytic solutions to the execution time prediction Y of binary parallel compositions of tasks with arbitrary execution time distributions X1 and X2 are either computationally complex or very inaccurate. In this paper we introduce an analytical approach based on the use of lambda distributions to approximate execution time distributions. This allows us to predict the first 4 statistical moments of Y in terms of the first 4 moments of Xi at negligible solution complexity. The prediction method applies to a wide range of workload distributions as found in practice, while its accuracy is better or equal compared to comparable low-cost approaches.