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Sparse matrix methods research using the CSM testbed software systemResearch is described on sparse matrix techniques for the Computational Structural Mechanics (CSM) Testbed. The primary objective was to compare the performance of state-of-the-art techniques for solving sparse systems with those that are currently available in the CSM Testbed. Thus, one of the first tasks was to become familiar with the structure of the testbed, and to install some or all of the SPARSPAK package in the testbed. A suite of subroutines to extract from the data base the relevant structural and numerical information about the matrix equations was written, and all the demonstration problems distributed with the testbed were successfully solved. These codes were documented, and performance studies comparing the SPARSPAK technology to the methods currently in the testbed were completed. In addition, some preliminary studies were done comparing some recently developed out-of-core techniques with the performance of the testbed processor INV.
Document ID
19890008070
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Chu, Eleanor (Tennessee Univ. Knoxville, TN, United States)
George, J. Alan (Tennessee Univ. Knoxville, TN, United States)
Date Acquired
September 5, 2013
Publication Date
March 1, 1989
Subject Category
Numerical Analysis
Report/Patent Number
NAS 1.26:4219
NASA-CR-4219
Accession Number
89N17441
Funding Number(s)
CONTRACT_GRANT: NAG1-803
PROJECT: RTOP 505-63-01-10
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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