swMATH ID: 12610
Software Authors: Notay, Yvan
Description: DRIC: A dynamic version of the RIC method.A new incomplete factorization method is proposed, differing from previous ones by the way in which the diagonal entries of the triangular factors are defined. A comparison is given with the dynamic modified incomplete factorization methods of O. Axelsson and V. A. Barker [Finite element solution of boundary value problems. Theory and computation (1984; Zbl 0537.65072)] and R. Beauwens [Lect. Notes Math. 1457, 1-16 (1990; Zbl 0713.65026)] and with the relaxed incomplete Cholesky (RIC) method of O. Axelsson and G. Lindskog [Numer. Math. 48, 479-498 (1986; Zbl 0564.65016)]. Theoretical arguments show that the new method is at least as robust as both previous ones, while numerical experiments made in the context of discrete partial differential equations show an effective improvement in many practical circumstances, particularly for anisotropic problems.
Homepage: http://onlinelibrary.wiley.com/doi/10.1002/nla.1680010602/abstract
Keywords: relaxed incomplete Cholesky method; incomplete factorization; comparison; numerical experiments
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Cited in: 23 Documents

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