Comparison if the convergence behaviour of three linear solvers for large, sparse unsymmetric matrices
Date
1995
Authors
Advisors
Journal Title
Journal ISSN
Volume Title
Publisher
Department
Type
Technical Report
ISSN
item.page.extent-format
Citation
Abstract
Implicit methods for the calculation of unsteady flows require the solution of large, sparse non-symmetric systems of linear equations. The size of such systems makes their solution by direct methods impractical and consequently iterative techniques are often used. A popular class of such methods are those based upon the conjugate gradient method. In this paper we examine three such methods, CGS, restarted GMRES and restarted GMRESR and compare their convergence properties.