Using lambda networks to enhance performance of interactive large simulations

Matthew J. Harvey, Shantenu Jha, Mary Ann Thyveetil, Peter Coveney

Research output: Contribution to journalConference article

Abstract

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 [1]. 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 languageEnglish (US)
Article number014
JournalProceedings of Science
Volume41
StatePublished - Jan 1 2007
Event2007 Lighting the Blue Touchpaper for UK e-Science - Closing Conference of ESLEA Project, ESLEA 2007 - Edinburgh, United Kingdom
Duration: Mar 26 2007Mar 28 2007

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All Science Journal Classification (ASJC) codes

  • General

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