Theory of Modeling and Simulation
Theory of Modeling and Simulation
Models of Complex Physical Systems Using Cell-DEVS
SS '01 Proceedings of the 34th Annual Simulation Symposium (SS01)
Methods for special applications: Cell-DEVS quantization techniques in a fire spreading application
Proceedings of the 34th conference on Winter simulation: exploring new frontiers
A discrete event method for wave simulation
ACM Transactions on Modeling and Computer Simulation (TOMACS)
Self-adaptive time integration of flux-conservative equations with sources
Journal of Computational Physics
Continuity and change (activity) are fundamentally related in DEVS simulation of continuous systems
AIS'04 Proceedings of the 13th international conference on AI, Simulation, and Planning in High Autonomy Systems
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The DEVS (Discrete Event Systems Specification) formalism has been applied to continuous and discrete phenomena. The use of discrete events, rather than time steps, as a basis for simulation has been shown to reduce computation time by orders of magnitude in many applications. However, the application of DEVS to partial differential equation (pde) simulation has only recently been investigated. Here, in an application to a shockwave problem, we show that the time to solution is significantly reduced when a discrete event integration scheme is employed compared to a representative conventional approach. Recent theory suggests that speed advantages are to be expected for pdes that are characterized by heterogeneity in their time and space behavior. The implications for use of DEVS as a basis for adaptive control of large scale distributed simulations are discussed.