CFD Online Discussion Forums

CFD Online Discussion Forums (
-   Main CFD Forum (
-   -   GMRES/ILU(0) (

Q. Liu June 30, 1999 23:44

Anybody has idea about GMRES/ILU(0)? It's about solving linear system equation AX=b. What's preconditioner and Generalized Minimal Residual Method? Thanks a lot.

John C. Chien July 1, 1999 00:35

(1). The best place to get the answer is the Department of Mathematics. These are just different iterative methods to solve s system of different kind of linear equations.

D.M. Lipinski July 1, 1999 03:41

GMRES/ILU(0) is probably just the GMRES linear solver with the incomplete LU decomposition (ILU) preconditioner. Zero parameter in ILU, ILU(0), means zero level of fill-ins in the coefficient matrix of the preconditioned system. You may consult the following book for details: Saad Y., Iterative Methods for Sparse Linear Systems, PWS Publ.Co., ISBN 0-534-94776-X regards DML

Patrick Godon July 1, 1999 09:19

Re: GMRES/ILU(0): see Numerical Recipes
Why don't you have a look at

Numerical Recipes, 1989, by Press, Flannery, Teukolsky and Vetterling, Cambridge University Press. This book has all the basic you want about solving equations on the computer. It has good references too and it is a good start indeed.

All times are GMT -4. The time now is 02:37.