petsc-3.11.4 2019-09-28
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MatFactorInvertSchurComplement

 Invert the Schur complement matrix computed during the factorization step

Synopsis

#include "petscmat.h" 
PetscErrorCode MatFactorInvertSchurComplement(Mat F)
Logically Collective on Mat

Input Parameters

Notes

Must be called after MatFactorSetSchurIS().

Call MatFactorGetSchurComplement() or MatFactorCreateSchurComplement() AFTER this call to actually compute the inverse and get access to it.

References

See Also

MatGetFactor(), MatFactorSetSchurIS(), MatFactorGetSchurComplement(), MatFactorCreateSchurComplement()

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()