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ID 30244
FullText URL
Author
Fujiwara, Koji
Nakata, Takayoshi
Fusayasu, Hirotsugu
Abstract

The effectiveness of renumbering for the incomplete Cholesky conjugate gradient (ICCG) solver, which is usually applied to direct solvers, is examined quantitatively by analyzing 3D standard benchmark models. On an acceleration factor which is introduced to obtain convergence quickly, indices for determining the optimum value of the acceleration factor, which minimizes the number of iterations, are discussed. It is found that the renumbering is effective to use with the ICCG solver, and the solver using the acceleration factor gives a good convergence characteristic even in the case when the conventional solver fails to provide convergent solutions

Keywords
convergence of numerical methods
electromagnetic fields
finite element analysis
iterative methods
Note
Digital Object Identifier: 10.1109/20.250792
Published with permission from the copyright holder. This is the institute's copy, as published in Digital Object Identifier: 10.1109/20.250792, March 1993, Volume 29, Issue 2, Pages 1958-1961.
Publisher URL:http://dx.doi.org/10.1109/20.250792
Copyright © 1993 IEEE. All rights reserved.
Published Date
1993-3
Publication Title
IEEE Transactions on Magnetics
Volume
volume29
Issue
issue2
Start Page
1958
End Page
1961
Content Type
Journal Article
language
English
Copyright Holders
IEEE
Refereed
True
DOI
Submission Path
electricity_and_magnetism/127