Parallel Discrete Event Simulations of Grid-Based Models: Asynchronous Electromagnetic Hybrid Code

Abstract. The traditional technique to simulate physical systems modeled by partial differential equations is by means of a time-stepped methodology where the state of the system is updated at regular discrete time intervals. This method has inherent inefficiencies. Recently, we proposed [1] a new asynchronous formulation based on a discrete-event-driven (as opposed to time-driven) approach, where the state of the simulation is updated on a “need-to-be-done-only” basis. Using a serial electrostatic implementation, we obtained more than two orders of magnitude speedup compared with traditional techniques. Here we examine issues related to the parallel extension of this technique and discuss several different parallel strategies. In particular, we present in some detail a newly developed discrete-event based parallel electromagnetic hybrid code and its performance using conservative synchronization on a cluster computer. These initial performance results are encouraging in that the...

• Type: Conference
• Year: 2004
• Where: PARA
• Authors: Homa Karimabadi, Jonathan Driscoll, Jagrut Dave, Yuri Omelchenko, Kalyan S. Perumalla, Richard Fujimoto, Nick Omidi
• Keywords: Applied Computing, Different Parallel Strategies, PARA 2004, Parallel Electromagnetic Hybrid, Traditional Techniques