petsc-3.7.1 2016-05-15
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MatSchurComplementComputeExplicitOperator

Compute the Schur complement matrix explicitly

Synopsis

#include "petscksp.h" 
PetscErrorCode MatSchurComplementComputeExplicitOperator(Mat M, Mat *S)
Collective on Mat Many br

Input Parameter

M -the matrix obtained with MatCreateSchurComplement() Many br

Output Parameter

S -the Schur complement matrix Many br

Note: This can be expensive, so it is mainly for testing Many br

Many br

See Also

MatCreateSchurComplement(), MatSchurComplementUpdate()

Level:advanced
Location:
src/ksp/ksp/utils/schurm.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages