petsc-3.10.5 2019-03-28
MatSchurComplementComputeExplicitOperator
Compute the Schur complement matrix explicitly
Synopsis
#include "petscksp.h"
PetscErrorCode MatSchurComplementComputeExplicitOperator(Mat M, Mat *S)
Collective on Mat
Input Parameter
M -the matrix obtained with MatCreateSchurComplement()
Output Parameter
S -the Schur complement matrix
Note: This can be expensive, so it is mainly for testing
See Also
MatCreateSchurComplement(), MatSchurComplementUpdate()
Level
advanced
Location
src/ksp/ksp/utils/schurm/schurm.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages