petsc-3.11.4 2019-09-28

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