Opuscula Mathematica
Opuscula Math. 35, no. 2 (), 235-250
http://dx.doi.org/10.7494/OpMath.2015.35.2.235
Opuscula Mathematica

ILU preconditioning based on the FAPINV algorithm




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.
Keywords: system of linear equations, preconditioner, FAPINV, ILU preconditioner, H-matrix, GMRES.
Mathematics Subject Classification: 65F10, 65F50.
Cite this article as:
Davod Khojasteh Salkuyeh, Amin Rafiei, Hadi Roohani, ILU preconditioning based on the FAPINV algorithm, Opuscula Math. 35, no. 2 (2015), 235-250, http://dx.doi.org/10.7494/OpMath.2015.35.2.235
 
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ISSN 1232−9274, e-ISSN 2300−6919, DOI https://doi.org/10.7494/OpMath
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