petsc-3.14.6 2021-03-30
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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
Level
advanced
Location
src/ksp/pc/interface/precon.c
Examples
src/ksp/pc/tutorials/ex1.c.html
src/ksp/pc/tutorials/ex2.c.html
src/ksp/ksp/tutorials/ex52.c.html
src/ksp/ksp/tutorials/ex77.c.html
src/ksp/ksp/tutorials/ex52f.F90.html
src/ksp/ksp/tutorials/ex77f.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