Conservative circuit simulation on shared-memory multiprocessors

  • Authors:
  • Jörg Keller;Thomas Rauber;Bernd Rederlechner

  • Affiliations:
  • Universität des Saarlandes, FB 14 Informatik, Postfach 151150, 66041 Saarbrücken, Germany;Universität des Saarlandes, FB 14 Informatik, Postfach 151150, 66041 Saarbrücken, Germany;Universität des Saarlandes, FB 14 Informatik, Postfach 151150, 66041 Saarbrücken, Germany

  • Venue:
  • PADS '96 Proceedings of the tenth workshop on Parallel and distributed simulation
  • Year:
  • 1996

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Abstract

We investigate conservative parallel discrete event simulations for logical circuits on shared-memory multiprocessors. For a first estimation of the possible speedup, we extend the critical path analysis technique by partitioning strategies. To incorporate overhead due to the management of data structures, we use a simulation on an ideal parallel machine (PRAM). This simulation can be directly executed on the SB-PRAM prototype, yielding both an implementation and a basis for data structure optimizations. One of the major tools to achieve these is the SB-PRAM's hardware support for parallel prefix operations. Our reimplementation of the PTHOR program on the SB-PRAM yields substantially higher speedups than before.