petsc-3.7.5 2017-01-01
MatSchurComplementSetKSP
Sets the KSP object that is used to invert A00 in the Schur complement matrix S = A11 - A10 ksp(A00,Ap00) A01
Synopsis
#include "petscksp.h"
PetscErrorCode MatSchurComplementSetKSP(Mat S, KSP ksp)
Not Collective
Input Parameters
Developer Notes
This is used in PCFieldSplit to reuse the 0-split KSP to implement ksp(A00,Ap00) in S.
See Also
MatSchurComplementGetKSP(), MatCreateSchurComplement(), MatCreateNormal(), MatMult(), MatCreate(), MATSCHURCOMPLEMENT
Level:developer
Location:src/ksp/ksp/utils/schurm.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages