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Solving Finite-Element Problems on a Concurrent ProcessorBy use of "conjugate gradients" technique, concurrent efficiency greater than 90 percent. Algorithm applies method of conjugate gradients to iterative solution of finite-element problems on concurrent processor. With algorithm, iteration rates nearly proportional to number of processors. For sufficiently large problems, fraction of proportional speedup achieved, called concurrent efficiency, exceeds 90 percent. Results indicate future application of this and related algorithms to large finite-element problems depend primarily upon applicability of iteratiave techniques, not upon issues of concurrency or efficiency.
Document ID
19870000047
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Lyzenga, G. A.
(Caltech)
Raefsky, A.
(Caltech)
Hager, B. H.
(Caltech)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Publication Information
Publication: NASA Tech Briefs
Volume: 11
Issue: 1
ISSN: 0145-319X
Subject Category
Mathematics And Information Sciences
Report/Patent Number
NPO-16745
Accession Number
87B10047
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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