Implementing distributed synthetic forces simulations inmetacomputing environments

摘要

A distributed, parallel implementation of the widely used ModularSemi-Automated Forces (ModSAF) Distributed Interactive Simulation (DIS)is presented, with scalable parallel processors (SPPs) used to simulatemore than 50,000 individual vehicles. The single-SPP code is portableand has been used on a variety of different SPP architectures forsimulations with up to 15,000 vehicles. A general metacomputingframework for DIS on multiple SPPs is discussed and results arepresented for an initial system using explicit Gateway processes tomanage communications among the SPPs. These 50K-vehicle simulationsutilized 1,904 processors at six sites across seven time zones,including platforms from three manufacturers. Ongoing activities to bothsimplify and enhance the metacomputing system using Globus are described