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Experiences with the Lanczos method on a parallel computerA parallel computer implementation of the Lanczos method for the free-vibration analysis of structures is considered, and results for two example problems show substantial time-reduction over the sequential solutions. The major Lanczos calculation tasks are subdivided into subtasks, and parallelism is introduced at the subtask level. A speedup of 7.8 on eight processors was obtained for the decomposition step of the problem involving a 60-m three-longeron space mast, and a speedup of 14.6 on 16 processors was obtained for the decomposition step of the problem involving a blade-stiffened graphite-epoxy panel.
Document ID
19870053885
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bostic, Susan W.
(NASA Langley Research Center Hampton, VA, United States)
Fulton, Robert E.
(Georgia Institute of Technology Atlanta, United States)
Date Acquired
August 13, 2013
Publication Date
August 1, 1987
Subject Category
Computer Systems
Accession Number
87A41159
Distribution Limits
Public
Copyright
Other

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