Timed consistency for shared distributed objects
Proceedings of the eighteenth annual ACM symposium on Principles of distributed computing
Shared State Consistency for Time-Sensitive Distributed Applications
ICDCS '01 Proceedings of the The 21st International Conference on Distributed Computing Systems
A utility model for timely state update in distributed wargame simulations
Proceedings of the eighteenth workshop on Parallel and distributed simulation
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An important issue in distributed real-time simulation is to reduce the amount of data transmitted amongst distributed simulation nodes so that the state updates of simulation entities can be sent to other simulation nodes in a timely manner. To address this issue, we have previously proposed a consistency model to determine the update interval of entities based on their relative importance, a utility model to compute the relative importance of entities, and a flexible state update mechanism to ensure updating within these intervals and to balance the number of updates in each simulation frame. In this paper, we focus on the performance evaluation of these timely state update mechanisms. Using a battlefield benchmark, the performance is evaluated in terms of the total amount of data exchanged, the number of simulation frames skipped, and the number ofGo-Through-Accidents occurring during the simulation. The performance results indicate that the mechanisms can significantly reduce the bandwidth requirements while maintaining or even improving the consistency of the simulation.