1. ILU PRECONDITIONING BASED ON THE FAPINV ALGORITHM.
- Author
-
Salkuyeh, Davod Khojasteh, Rafiei, Amin, and Roohani, Hadi
- Subjects
- *
ALGORITHMS , *APPROXIMATION theory , *NUMERICAL analysis , *MATRICES (Mathematics) , *LINEAR equations - Abstract
A technique for computing an ILU preconditioner based on the factored approximate inverse (FAPINV) algorithm is presented. We show that this algorithm is well-defined for H-matrices. Moreover, when used in conjunction with Krylov-subspace-based iterative solvers such as the GMRES algorithm, results in reliable solvers. Numerical experiments on some test matrices are given to show the efficiency of the new ILU preconditioner. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF