[petsc-users] Is LU decomposition performed in MUMPS accessible in PETSc?

[Hong Zhang]

Marc :

> Let A be a square sparse matrix of size n x n (n of order up to 1 M). Is it
> possible to access in PETSc to the lower and upper decomposition coefficient
> triangles (L and U) of A factored in the MUMPS external package?

You may run the code with option
-mat_mumps_icntl_4 <0>: ICNTL(4): level of printing (0 to 4) (None)

with '-mat_mumps_icntl_4 4', you'll see the data structure of analysis
phase, ...
If you need more, contact mumps developer.

Hong

> =========================================================
> Polytech'Marseille, Département de Mécanique Energétique
> Laboratoire IUSTI, UMR 6595 CNRS-Université Aix-Marseille
> Technopole de Chateau-Gombert, 5 rue Enrico Fermi
> 13453 MARSEILLE, Cedex 13, FRANCE
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> Fax : +33 (0)4.91.10.69.69
> e-mail : Marc.Medale at polytech.univ-mrs.fr
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