Wavepacket Simulations in a Message-Passing Cluster Environment Using a Multi-agent-based Loop Scheduling
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CONTRIBUTORS:
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PROCEEDINGS TITLE:
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YEAR:
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2006
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PUB TYPE:
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Conference Paper in Proceedings
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PAGES:
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n/a -
n/a
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SUBJECT(S):
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wavepacket simulations; quantum trajectory method; multi-agent system; loop scheduling
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DISCIPLINE:
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Computer Science
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HTTP:
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http://www.ics.uplb.edu.ph/node/171
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LANGUAGE:
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English
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PUB ID:
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103-444-132
(Last edited on
2008/07/19 02:34:02 GMT-6)
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SPONSOR(S):
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ABSTRACT:
This paper presents a computational strategy for improving the performance of wavepacket simulations using the quantum trajectory method (QTM). A multi-agent-based loop scheduling technique is utilized to dynamically load balance the parallel computation of the trajectories. The load imbalance introduced by the parallel runtime system and by the computationally-intensive moving weighted least squares (MWLS), the governing equations for the trajectories of the pseudoparticles, is reduced by the multi-agent-based loop scheduling at higher number of processors. Results of experiments on a multi-purpose message-passing cluster are presented to confirm that the multi-agent-based loop scheduling achieves better performance than with the current best adaptive loop scheduling technique when simulating a free particle at higher number of processors.
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