Parallel discrete event simulation
Communications of the ACM - Special issue on simulation
Time warp on a shared memory multiprocessor
Transactions of the Society for Computer Simulation International
An analysis of rollback-based simulation
ACM Transactions on Modeling and Computer Simulation (TOMACS)
PORTS: a parallel, optimistic, real-time simulator
PADS '94 Proceedings of the eighth workshop on Parallel and distributed simulation
Parallel hybrid models in system design
WSC '93 Proceedings of the 25th conference on Winter simulation
Optimistic distributed simulation based on transitive dependency tracking
Proceedings of the eleventh workshop on Parallel and distributed simulation
XSim: real-time analytic parallel simulations
Proceedings of the sixteenth workshop on Parallel and distributed simulation
Latency hiding with optimistic computations
Journal of Parallel and Distributed Computing - Parallel and Distributed Discrete Event Simulation--An Emerging Technology
Generalized Discrete Event Abstraction of Continuous Systems: Application to an Integrator
Journal of Intelligent and Robotic Systems
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The suitability of the Time Warp mechanism to perform simulations with real-time constraints is examined. A model for Time Warp is developed that accounts for overheads such as state saving, state restoration, and sending and transmitting positive and negative messages. A criterion called R-schedulability is defined to indicate whether or not computations can meet real-time deadlines. It is shown that if false events (events that will be rolled back or cancelled later) are generated, and there are no committed events with timestamps equal to those of the false events, Time Warp cannot meet the R-schedulability criterion. Further, if aggressive cancellation is used, scheduling guarantees still cannot be made even in the absence of such false events. However, Time Warp using lazy cancellation is shown to be R-schedulable provided such false events do not exist. Finally, based on these results, bounds on the execution time of a Time Warp simulation are derived.