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Direct particle simulation on the Connection Machine CM-2Particle simulation is a useful technique for analyzing low density flows. The Connection Machine CM-2 is a useful test bed for studying the fine-grain data objects decomposition and the coarse-grain domain decomposition single instruction multiple datastream (SIMD) approaches to particle simulation. Both approaches are investigated for the model problem of uniform flow through a channel and the algorithms required for the SIMD domain decomposition approach are presented. An unresolved issue with the domain decomposition approach is the effect of a poor partitioning on flows with real geometries. Initial results with the channel flow problem indicate that a poor partitioning has only a small detrimental effect on the overall performance.
Document ID
19930036731
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Dagum, L.
(Computer Sciences Corp.; NASA, Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Publication Information
Publication: Computing Systems in Engineering
Volume: 3
Issue: 4-Jan
ISSN: 0956-0521
Subject Category
Computer Programming And Software
Accession Number
93A20728
Funding Number(s)
CONTRACT_GRANT: NAS2-12961
Distribution Limits
Public
Copyright
Other

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