The ability to use a visualisation tool to steer large simulations provides innovative and novel usage scenarios, for example, the ability to use new algorithms for the computation of free energy profiles along a nanopore . However, we find that the performance of interactive simulations is sensitive to the quality of service of the network with latency and packet loss in particular having a detrimental effect. The use of dedicated networks (provisioned in this case as a circuit-switched, point-to-point optical lightpath or lambda) can lead to significant (50% or more) performance enhancement. When running on say 128 or 256 processors of a high-end supercomputer this saving has a significant value. We discuss the results of experiments performed to understand the impact of network characteristics on the performance of a large parallel classical molecular dynamics simulation when coupled interactively to a remote visualisation tool.
|Original language||English (US)|
|Journal||Proceedings of Science|
|State||Published - Jan 1 2007|
|Event||2007 Lighting the Blue Touchpaper for UK e-Science - Closing Conference of ESLEA Project, ESLEA 2007 - Edinburgh, United Kingdom|
Duration: Mar 26 2007 → Mar 28 2007
All Science Journal Classification (ASJC) codes