PCFactorGetMatrix#
Gets the factored matrix from the preconditioner context. This routine is valid only for the PCLU, PCILU, PCCHOLESKY, and PCICC methods.
Synopsis#
#include "petscksp.h"
PetscErrorCode PCFactorGetMatrix(PC pc, Mat *mat)
Not Collective though mat is parallel if pc is parallel
Input Parameter#
pc - the preconditioner context
Output Parameters#
mat - the factored matrix
Note#
Does not increase the reference count for mat so DO NOT destroy it
See Also#
KSP: Linear System Solvers, PC, PCLU, PCILU, PCCHOLESKY, PCICC
Level#
advanced
Location#
Examples#
src/ksp/pc/tutorials/ex2.c
src/ksp/ksp/tutorials/ex52.c
src/ksp/ksp/tutorials/ex52f.F90
src/ksp/pc/tutorials/ex1.c
src/ksp/ksp/tutorials/ex77f.F90
src/ksp/ksp/tutorials/ex77.c
src/ksp/ksp/tutorials/ex57f.F90
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