A modified solution for large sparse symmetric linear systems in electromagnetic field analysis

Authors
Wang, JM Xie, DX Yao, YY Mohammed, OA
Citation
Jm. Wang et al., A modified solution for large sparse symmetric linear systems in electromagnetic field analysis, IEEE MAGNET, 37(5), 2001, pp. 3494-3497
Citations number
4
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
37
Issue
5
Year of publication
2001
Part
1
Pages
3494 - 3497
Database
ISI
SICI code
0018-9464(200109)37:5<3494:AMSFLS>2.0.ZU;2-U
Abstract
A modified preconditioned conjugate gradient method for solution of large s parse symmetric linear equations is presented. Two controlling parameters a re used to reduce the computation time of the incomplete decomposition and each iterative step of the conjugate gradient method. Theoretical analysis and numerical examples show that the method is problem-independent to a cer tain extent, and could decrease the computation time by 30%similar to 50% t han the conventional method.