MUMPS

MUMPS Main Features:- Solution of large linear systems with symmetric positive definite matrices, general symmetric matrices and general unsymmetric matrices- Real or complex arithmetic (single or double precision) – Parallel factorization and solve phases (uniprocessor version also available)- Out of core numerical phases- Iterative refinement and backward error analysis- Various matrix input formats (assembled, distributed, elemental format)- Partial factorization and Schur complement matrix (centralized or 2D block-cyclic)- Interfaces to MUMPS: Fortran, C, Matlab and Scilab- Several reorderings interfaced: AMD, QMAD, AMF, PORD, METIS, PARMETIS, SCOTCH, PT-SCOTCH- Symmetric indefinite matrices: preprocesssing and 2-by-2 pivots- Parallel analysis and matrix scaling- Computation of the determinant (with an option to discard factors)- Forward elimination during factorization