MatFactorSolveSchurComplement#

Solve the Schur complement system computed during the factorization step

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatFactorSolveSchurComplement(Mat F, Vec rhs, Vec sol)

Logically Collective

Input Parameters#

  • F - the factored matrix obtained by calling MatGetFactor()

  • rhs - location where the right hand side of the Schur complement system is stored

  • sol - location where the solution of the Schur complement system has to be returned

Notes#

The sizes of the vectors should match the size of the Schur complement

Must be called after MatFactorSetSchurIS()

See Also#

Matrices, Mat, MatGetFactor(), MatFactorSetSchurIS(), MatFactorSolveSchurComplementTranspose()

Level#

advanced

Location#

src/mat/interface/matrix.c

Index of all Mat routines
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Index of all manual pages