Event distribution and state sharing in the thema parallel discrete event simulation modeling framework.

Combat models require access to shared state such as entity position data and to exchange area effect events such as detonations. While traditional Parallel Discrete Event Simulation has a point to point communication paradigm, point to multipoint solutions are more efficient for this problem. We have developed a simulation framework called Thema which addresses these issues while providing transparent access to parallelism and type safe exchange of events and data between entities. Thema is targeted to small inexpensive multiprocessor machines and clusters, and uses the SAIC developed Time Warp kernel Tempo.