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Fast Concurrent Simulation Using the Time Warp Mechanism

Part I, Local Control

by David Jefferson, Henry A. Sowizral

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More than 20 years after its development, computer simulation continues to be a time-consuming process. This Note addresses the problem of speeding up simulation through concurrency. The authors propose a new method for concurrent simulation. The Note first presents the fundamental issues in concurrent discrete event simulation. A critical analysis of the methods for concurrent simulation proposed in the literature follows. Then the authors give a detailed description of the local control part of the time warp mechanism, the part concerned with the actual mechanics of discrete event simulation. Finally, the discussion examines the concepts of messages, antimessages, annihilation, and rollback.

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