Abstract
Model execution issues are important for systems of systems (SoS) as models are growing more precise and models may exist as multi-resolution. Discrete event system specification (DEVS) is a classic specification for traditional discrete and continuous models which are divided into atomic and coupled models. Although DEVS is useful, it does not address the issue of how to apply it to massively parallel simulation, which is often implemented with graphic processing unit (GPU) nowadays. Therefore, to model SoS from the perspective of parallel computing is necessary. This chapter addresses how to make CPU and GPU work collaboratively to enable large-scale DEVS-based traffic simulation execution faster and cheaper. Further, we discuss how to model SoS to accelerate traffic simulation system execution including components such as nodes, links, segments, and lanes.
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