petsc-3.10.2 2018-10-09
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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 on Mat

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()

References

See Also

MatGetFactor(), MatFactorSetSchurIS(), MatFactorSolveSchurComplementTranspose()

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