An Analytical Model of Scheduling for Conservative Parallel Simulation

  • Authors:
  • Ha Yoon Song;Junghwan Kim;Kyun Rak Chong

  • Affiliations:
  • -;-;-

  • Venue:
  • Proceedings of the 9th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface
  • Year:
  • 2002

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Abstract

The critical path provides a lower bound on the execution time of a distributed discrete event simulation. The optimal execution time can be achieved by immediately executing each event on the critical path. A solution is to preferentially schedule an LP, called a critical parent, which probably has a critical event. Critical parent preferential scheduling has been experienced as a viable solution of conservative LP scheduling. In this paper, we introduce a mathematical analysis to showt he quantitative benefit of critical parent preferential scheduling in terms of speed-up of execution time. The analysis shows the benefit of the critical parent preferential scheduling with the acceleration of earliest incoming time update and with the reduction of non-critical null messages. The effectiveness of analytical model has been validated with experiments.