Performance of LCD iterative method in the finite element and finite difference solution of convection-diffusion equations

被引：2
|
作者：
Catabriga, L.
Valli, A. M. P.
Melotti, B. Z.
Pessoa, L. M.
Coutinho, A. L. G. A.
机构：
[1] Fed Univ Espirito Santo, Dept Comp Sci, Vitoria, ES, Brazil
[2] Univ Fed Rio de Janeiro, COPPE, Ctr Parallel Computat, Rio De Janeiro, Brazil
[3] Univ Fed Rio de Janeiro, COPPE, Dept Civil Engn, Rio De Janeiro, Brazil
来源：
COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING | 2006年 / 22卷 / 06期
关键词：
left conjugate direction method; iterative solvers; inexact Newton method;
D O I：
10.1002/cnm.842
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, we evaluate the performance of the left conjugate direction method (LCD) for the solution of non-symmetric systems of linear equations arising from finite element and finite difference discretizations of the convection-diffusion equation. We extend the LCD algorithm proposed by Dai and Yuan (Int. J. Numer. Meth. Engng 2004; 60:1383-1399) to accommodate restarts. Our discussion considers comparison studies between the computational efficiency of the GMRES and LCD methods and some issues related to the choice of the forcing term in the inexact Newton method. Copyright (c) 2005 John Wiley & Sons, Ltd.
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页码：643 / 656
页数：14
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