Performance Analysis of an Optimistic Simulator for CD++

DEVS is a formalism to describe generic dynamic systems in a hierarchical and modular way. We present new techniques for executing DEVS and CellDEVS models in parallel and distributed environments based on the warped kernel. The parallel simulator PCD++ has been extended to support optimistic simulations. A non-hierarchical approach is employed to reduce the communication overhead. A two-level usercontrolled state-saving mechanism is proposed to achieve efficient and flexible state saving at runtime. It is shown that optimistic PCD++ markedly outperforms other alternatives, and considerable speedups can be achieved in parallel and distributed simulations.

• Type: Conference
• Year: 2007
• Where: ANSS
• Authors: Qi Liu, Gabriel A. Wainer
• Keywords: ANSS 2007, DEVS, Generic Dynamic Systems, Parallel Simulator Pcd++