MatLMVMSetJ0PC#
Allows the user to define a PC object that acts as the initial inverse-Jacobian matrix.
Synopsis#
#include "petscksp.h"
PetscErrorCode MatLMVMSetJ0PC(Mat B, PC J0pc)
Input Parameters#
Notes#
J0pc should already contain all the operators necessary for its application. The MATLMVM matrix only calls
PCApply() without changing any other options.
If the sizes of B have not been specified (using MatSetSizes() or MatSetLayouts()) before MatLMVMSetJ0PC() is
called, then B will adopt the sizes and layouts of the operators of J0pc, and these sizes will be final.
See Also#
KSP: Linear System Solvers, LMVM Matrices, MATLMVM, MatLMVMGetJ0PC()
Level#
advanced
Location#
src/ksp/ksp/utils/lmvm/lmvmutils.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages