Electronic Resource
New York, NY [u.a.]
:
Wiley-Blackwell
Numerical Linear Algebra with Applications
1 (1994), S. 369-386
ISSN:
1070-5325
Keywords:
GMRES
;
Unsymmetric linear systems
;
Iterative solver
;
Engineering
;
Engineering General
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Mathematics
Notes:
Recently Eirola and Nevanlinna have proposed an iterative solution method for unsymmetric linear systems, in which the preconditioner is updated from step to step. Following their ideas we suggest variants of GMRES, in which a preconditioner is constructed per iteration step by a suitable approximation process, e.g., by GMRES itself. Our numerical experiments indicate that this may lead to considerable savings in CPU-time and memory requirements in typical CFD applications.
Additional Material:
10 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/nla.1680010404
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