Engineering Mechanics

International Conference

Proceedings Vol. 13 (2007)


ENGINEERING MECHANICS 2007

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 14 – 17, 2007, Svratka, Czech Republic
;
Editors: Igor Zolotarev

Copyright © 2007 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 978-80-87012-06-2 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

SPARSE DIRECT SOLVER WITH FILL-IN OPTIMALIZATION
Pařík P.
pages 211 - +7p., full text

A symmetric sparse direct solver for finite element problems is presented. Solution of large systems can be very memory-demanding and timeconsuming process, and it may even be practically impossible if a classical frontal solver is used. The presented solver is based on LDLT factorization and uses various facilities to optimize solution calculations, in particular, optimal numbering scheme and efficient sparse matrix storage scheme. The solver is designed to work as an integral part of the computational system PMD.


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