Live Webcast 15th Annual Charm++ Workshop

Petaflop/s class computers are currently being deployed and even larger exascale computers are being planned. Our BigSim project is aimed at developing tools that allow one to develop, debug and tune/scale/predict the performance of applications before such machines are available so that the applications can be ready when the machine first becomes operational. It also allows easier "offline" experimentation of parallel performance tuning strategies -- without using the full parallel computer. This talk will focus on our recent development in BigSim project , including work on simulating petascale machines using NAMD with improved accuracy, a new faster implementation of a sequential network simulator, and several case studies of using BigSim.