The design of the Georgia Tech Time Warp (GTW, version 2.0) executive for cache-coherent sharedmemory multiprocessors is described. The programmer's interface is presented. Several optimizations used to efficiently realize key functions such as event list manipulation, memory and buffer management, and message passing are discussed. An efficient algorithm for computing GVT on shared-memory multiprocessors is described. Measurements of a wireless personal communication services (PCS) network simulation indicate the GTW simulator is able to sustain performance as high as 335,000 committed events per second for this application on a 42-processor KSR-2 machine.
The Georgia Tech Time Warp (GTW) REF system was developed for small granularity simulations such as wireless networks and ATM networks.
GTW: a time warp system for shared memory multiprocessors
Proceedings of Winter Simulation Conference
Proceedings of Winter Simulation Conference
Computer Science