The notion of spatial uncertainty indicates the lack of exact knowledge about where, within the simulated space, an event actually occurs. In one of our previous works, we have shown how to exploit spatial uncertainty to reduce the synchronization cost in optimistic simulation, in terms of amount of rollback. In this paper we show how to exploit spatial uncertainty also for reducing the expected cost of simulation events during forward computation, thus achieving further reduction of the wall-clock time for the simulation model execution. The application of this proposal to optimistic simulation of a Personal Communication System (PCS) is also presented, together with experimental results supporting the claim of increased execution speed of the simulation system.
Exploiting spatial uncertainty to reduce forward computation cost in optimistic simulations / Quaglia, Francesco; A., Santoro. - (2004), pp. 222-225. (Intervento presentato al convegno 8th IEEE International Symposium on Distributed Simulation and Real-Time Applications (DS-RT 2004) tenutosi a Budapest, HUNGARY nel OCT 21-23, 2004) [10.1109/ds-rt.2004.19].
Exploiting spatial uncertainty to reduce forward computation cost in optimistic simulations
QUAGLIA, Francesco;
2004
Abstract
The notion of spatial uncertainty indicates the lack of exact knowledge about where, within the simulated space, an event actually occurs. In one of our previous works, we have shown how to exploit spatial uncertainty to reduce the synchronization cost in optimistic simulation, in terms of amount of rollback. In this paper we show how to exploit spatial uncertainty also for reducing the expected cost of simulation events during forward computation, thus achieving further reduction of the wall-clock time for the simulation model execution. The application of this proposal to optimistic simulation of a Personal Communication System (PCS) is also presented, together with experimental results supporting the claim of increased execution speed of the simulation system.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.