LINSOL swMATH ID: 3129 Software Authors: H. Häfner, W. Schönauer, R. Weiss Description: In the iterative linear solver package LINSOL several generalized conjugate gradient (CG) methods (or, briefly, CG-type methods) with quite different properties are implemented. With these methods polyalgorithms with automatic method switching are constructed. The “emergency exit” that is taken in the worst case is the ATPRES method (which is very robust, but very slow). In this paper we investigate if (I)LU preconditioning were a better emergency exit and how the drop tolerance for small elements in ILU affects the convergence behavior. The answer will be: it depends. Homepage: http://www.scc.kit.edu/produkte/linsol.php Related Software: FDEM; VECFEM; Harwell-Boeing sparse matrix collection; LAPACK; FIDISOL; CADSOL; PLTMG; PELLPACK; MPI/MPICH; Aztec; AztecOO; PETSc; P-SPARSLIB; PINEAPL; SparseMatrix Cited in: 10 Publications all top 5 Cited by 10 Authors 7 Schönauer, Willi 3 Adolph, Torsten 2 Häfner, Hartmut 1 Benzi, Michele 1 Christen, Peter 1 Gutknecht, Martin H. 1 Öztaskin, Murat C. 1 Soyhan, Hakan S. 1 Tůma, Miroslav 1 Wörner, Martin Cited in 5 Serials 4 Applied Numerical Mathematics 2 Journal of Computational and Applied Mathematics 1 Mathematics and Computers in Simulation 1 Journal of Scientific Computing 1 Physics of Fluids Cited in 5 Fields 8 Numerical analysis (65-XX) 3 Partial differential equations (35-XX) 2 Fluid mechanics (76-XX) 1 General and overarching topics; collections (00-XX) 1 Computer science (68-XX) Citations by Year