Modeling Communication Overhead: MPI and MPL Performance on the IBM SP2

  • Authors:
  • Zhiwei Xu;Kai Hwang

  • Affiliations:
  • -;-

  • Venue:
  • IEEE Parallel & Distributed Technology: Systems & Technology
  • Year:
  • 1996

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Abstract

Through timing experiments on the IBM SP2, an overhead quantifying method is developed to evaluate collective communication performance on any message-passing multicomputer. MPP designers and users can apply this method to reveal architectural bottlenecks and to trade off between computations and communications for parallel applications optimization.