A Comparative Study of Adaptive Risk vs. Adaptive Aggressiveness Control in Parallel and Distributed Simulation

  • Authors:
  • Donald O. Hamnes;Anand Tripathi

  • Affiliations:
  • -;-

  • Venue:
  • SS '96 Proceedings of the 29th Annual Simulation Symposium (SS '96)
  • Year:
  • 1996

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Abstract

The performance of adaptive protocols using either aggressiveness control, risk control or both are compared to each other and an optimistic protocol. Empirical results are presented from execution on a CM-5 using up to 256 nodes. The results demonstrate that between the aggressiveness and risk control protocols, the aggressiveness control protocol performs better overall; however, risk control performs best in some situations. A protocol combining aggressiveness and risk control is more consistent at performing better than an optimistic protocol. Also, the use of straggler information is seen to enhance the risk control protocol.