병렬 분산 환경에서의 DEVS 형식론의 구현 An Implementation of the DEVS Formalism on a Parallel Distributed Environment

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THe DEVS(discrete event system specification) formalism specifies a discrete event system in a hierachical, modular form. DEVSIM++ is a C++ based general purpose DEVS abstract simulator which can simulate systems modeled by the DEVS formalism in a sequential environment. This paper describes P-DEVSIM++ which is a parallel version of DEVSIM++. In P-DEVSIM++, the external and internal event of DEVS models can be processed in prallel. For such processing, we propose a prallel, distributed optimistic simulation algorithm based on the Time Warp approach. However, the proposed algorithm localizes the rollback of a model within itself, not possible in the standard Time Warp approach. An advantage of such localization is that the simulation time may be reduced. To evaluate its performance, we simulate a single bus builtiprocessor architecture system with an external common memory. Simulation result shows that significant speed up is made possible with our algorithm in a parallel environment.
Publisher
한국시뮬레이션학회
Issue Date
1992-12
Language
Korean
Citation

한국시뮬레이션학회 논문지, v.1, no.1, pp.64 - 76

ISSN
1225-5904
URI
http://hdl.handle.net/10203/21161
Appears in Collection
EE-Journal Papers(저널논문)
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