petsc-3.7.7 2017-09-25
MatFactorCreateSchurComplement
Create a Schur complement matrix object using Schur data computed during the factorization step
Synopsis
#include "petscmat.h"
PetscErrorCode MatFactorCreateSchurComplement(Mat F,Mat* S)
Logically Collective on Mat
Input Parameters
Notes
The routine provides a copy of the Schur data stored within solver's data strutures. The caller must destroy the object when it is no longer needed.
If MatFactorInvertSchurComplement has been called, the routine gets back the inverse
References
See Also
MatGetFactor(), MatFactorSetSchurIS(), MatFactorGetSchurComplement()
Level:advanced
Location:src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages
| F | - the factored matrix obtained by calling MatGetFactor() from PETSc-MUMPS interface
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| *S | - location where to return the Schur complement (MATDENSE)
|