PETSc version 3.15.5
MatSchurComplementComputeExplicitOperator
Compute the Schur complement matrix explicitly 
Synopsis
#include "petscksp.h" 
PetscErrorCode MatSchurComplementComputeExplicitOperator(Mat A, Mat *S)
Collective on M
Input Parameter
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