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An Empirical Performance Study of Connection Oriented Time Warp Parallel Simulation

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Executive Summary

Time warp is a well-known optimistic mechanism for parallel execution of simulation programs. Implementing time warp using a connection-oriented communication approach is proposed in the literature as a way to improve time warp performance because it allows for the use of more efficient event queue implementations. However, no empirical performance studies have been reported for connection-oriented time warp. In this paper, the authors present an enhanced version of the connection-oriented time warp algorithm along with its associated data structures. An empirical performance study of the connection-oriented time warp is conducted on a network of workstations using a standard synthetic benchmark simulation model. Experimental results show that this algorithm is capable of achieving better performance than that of traditional connectionless time warp for several performance measures.

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