Using lambda networks to enhance performance of interactive large simulations

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Title: Using lambda networks to enhance performance of interactive large simulations
Authors: Harvey, M J
Jha, S
Thyveetil, M A
Coveney, P V
Item Type: Conference Paper
Abstract: The ability to use a visualisation tool to steer large simulations provides innovative and novel usage scenarios, e.g. 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 variable 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 funning on say 128 or 256 processors of a high-end supercomputer this saving has a significant value. We perform experiments 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. This paper discusses the experiments performed and presents the results from the systematic studies. © 2006 IEEE.
Content Version: Published version
Issue Date: 1-Dec-2006
Publisher Link:
Presented At: IEEE e-Science 2006
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Conference Location: Amsterdam
Appears in Collections:Information and Communication Technology (ICT)

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