18th Workshop on Parallel and Distributed Simulation, 2004. PADS 2004. (2004)
May 16, 2004 to May 19, 2004
K. A. Iskra , Universiteit van Amsterdam
G. D. van Albada , Universiteit van Amsterdam
P. M. A. Sloot , Universiteit van Amsterdam
We study the adaptation of an optimistic Time Warp kernel to cross-cluster computing on the Grid. Wide area communication, the primary source of overhead, is off-loaded onto dedicated routing processes. This allows the simulation processes to run at full speed and it thus significantly decreases the performance gap caused by the wide area distribution. Further improvements are obtained by employing message aggregation on the wide area links. We achieve many of our objectives for lazy cancellation and moderate communication, but high communication rates with aggressive cancellation remains a challenge.
P. M. Sloot, G. D. van Albada and K. A. Iskra, "Towards Grid-Aware Time Warp," 18th Workshop on Parallel and Distributed Simulation, 2004. PADS 2004.(PADS), Kufstein, Austria, 2004, pp. 63-70.