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#

src/ksp/pc/interface/precon.c

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