petsc-3.8.4 2018-03-24
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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()