A distributed memory LAPSE: parallel simulation of message-passing programs

  • Authors:
  • Phillip M. Dickens;Philip Heidelberger;David M. Nicol

  • Affiliations:
  • ICASE, NASA Langley Research Center, Hampton, VA;IBM T. J. Watson Research Center, Yorktown Heights, NY;The College of William and Mary, Williamsburg, VA

  • Venue:
  • PADS '94 Proceedings of the eighth workshop on Parallel and distributed simulation
  • Year:
  • 1994

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Abstract

This paper describes a tool, LAPSE (Large Application Parallel Simulation Environment), that allows one to use a small number of parallel processors to simulate the behavior of a message-passing code running on a large number of processors, for the purposes of scalability studies and performance tuning. LAPSE is implemented on the Intel Paragon, and has achieved small slowdowns (relative to native code) and high speed-ups on large problems.