Proceedings Fourteenth Workshop on Parallel and Distributed Simulation (2000)
May 28, 2000 to May 31, 2000
Margaret L. Loper , Georgia Institute of Technology
Richard M. Fujimoto , Georgia Institute of Technology
In this paper, we describe an approach to exploit temporal uncertainty in parallel and distributed simulation by utilizing time intervals rather than precise time stamps. Unlike previously published work that propose new message ordering semantics, our approach is based on conservative, time stamp order execution and enhancing the lookahead of the simulation by pre-drawing random numbers from a distribution that models temporal uncertainty. The advantages of this approach are that it allows time intervals to be exploited using a conventional Time Stamp Order (TSO) delivery mechanism, and it offers the modeler greater statistical control over the assigned time stamps. An implementation of this approach is described and initial performance measurements are presented.
R. M. Fujimoto and M. L. Loper, "Pre-Sampling as an Approach for Exploiting Temporal Uncertainty," Proceedings Fourteenth Workshop on Parallel and Distributed Simulation(PADS), Bologna, Italy, 2000, pp. 157.