Hybrid parallel computation of transcendental structural eigenvalues

Kennedy, David, Watkins, William J. ORCID: https://orcid.org/0000-0003-3262-6588 and Williams, Fred W. 1995. Hybrid parallel computation of transcendental structural eigenvalues. AIAA Journal 33 (11) 10.2514/3.12966

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Abstract

Existing coarse grain and fine grain methods are refined to enable the efficient calculation of natural frequencies and critical buckling loads of structures on parallel computers, using the Wittrick-Williams algorithm to solve the transcendental eigenvalue problems arising from the exact solution of the member stiffness equations. The methods are combined to form a novel hybrid method employing both kinds of parallelism simultaneously. Solution times of the hybrid method are up to 24% faster than the best of the existing methods and can be predicted from those of its coarse grain and fine grain components.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine
Publisher:	American Institute of Aeronautics and Astronautics
ISSN:	0001-1452
Last Modified:	13 Jul 2023 10:20
URI:	https://orca.cardiff.ac.uk/id/eprint/160726

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