petsc-3.11.4 2019-09-28
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PCFactorGetMatrix

Gets the factored matrix from the preconditioner context. This routine is valid only for the LU, incomplete LU, Cholesky, and incomplete Cholesky methods.

Synopsis

#include "petscksp.h" 
PetscErrorCode  PCFactorGetMatrix(PC pc,Mat *mat)
Not Collective on PC though Mat is parallel if PC is parallel

Input Parameters

pc -the preconditioner context

Output parameters

mat -the factored matrix

Notes

Does not increase the reference count for the matrix so DO NOT destroy it

Keywords

PC, get, factored, matrix

Level

advanced

Location

src/ksp/pc/interface/precon.c

Examples

src/ksp/pc/examples/tutorials/ex1.c.html
src/ksp/pc/examples/tutorials/ex2.c.html
src/ksp/ksp/examples/tutorials/ex52.c.html
src/ksp/ksp/examples/tutorials/ex52f.F90.html

Implementations

PCFactorGetMatrix_Factor in src/ksp/pc/impls/factor/factimpl.c

Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages