Improving the Lookahead Computation in G-DEVS/HLA Environment

Authors:
G. Zacharewicz;N. Giambiasi;C. Frydman
Affiliations:
LSIS UMR CNRS 6168 Université Paul Cézanne Marseille France;LSIS UMR CNRS 6168 Université Paul Cézanne Marseille France;LSIS UMR CNRS 6168 Université Paul Cézanne Marseille France
Venue:
DS-RT '05 Proceedings of the 9th IEEE International Symposium on Distributed Simulation and Real-Time Applications
Year:
2005

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Abstract

In this paper, we present an improvement to evaluate the HLA lookahead for distributed DEVS/GDEVS models in a HLA-compliant environment. The models considered in this distributed simulation have state lifetimes functions of several state variables. We use the graph theory Dijkstra search to compute the different values of the state variables and a mathematical function analysis to determine the lookahead for the model states. We illustrate on an example how this solution extends the range of DEVS/G-DEVS models that can be involved into distributed simulations.