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Proceedings 15th Workshop on Parallel and Distributed Simulation (2001)
Lake Arrowhead, California
May 15, 2001 to May 18, 2001
ISSN: 1087-4097
ISBN: 0-7695-1104-X
pp: 129
Kalyan Perumalla , Georgia Tech
Richard Fujimoto , Georgia Tech
ABSTRACT
In parallel and distributed simulations, it is sometimes desirable that the application's time-stamped events and/or the simulator's time-management control messages be exchanged over a combination of reliable and unreliable network channels. A challenge in developing infrastructure for such simulations is to correctly compute simulation time advances despite the loss of some simulation events and/or control messages. Presented here are algorithms for synchronization in distributed simulations performed directly over best-effort network transport. The algorithms are presented in a sequence of progressive refinement, starting with all reliable transport and finishing with combinations of reliable and unreliable transports for both time-stamped events and time management messages. Performance results from a preliminary implementation of these algorithms are also presented. To our knowledge, this is the first work to solve asynchronous time synchronization performed directly over unreliable network transport.
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CITATION

R. Fujimoto and K. Perumalla, "Virtual Time Synchronization over Unreliable Network Transport," Proceedings 15th Workshop on Parallel and Distributed Simulation(PADS), Lake Arrowhead, California, 2001, pp. 129.
doi:10.1109/PADS.2001.924629
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