PCJacobiSetFixDiagonal#

Check for zero values on the diagonal and replace them with 1.0

Synopsis#

#include "petscpc.h" 
PetscErrorCode PCJacobiSetFixDiagonal(PC pc, PetscBool flg)

Logically Collective

Input Parameters#

pc - the preconditioner context
flg - the boolean flag

Options Database Key#

-pc_jacobi_fixdiagonal - check for zero values on the diagonal

Note#

This takes affect at the next construction of the preconditioner

See Also#

PCJACOBI, PCJacobiSetType(), PCJacobiGetFixDiagonal(), PCJacobiSetUseAbs()

Level#

intermediate

Location#

src/ksp/pc/impls/jacobi/jacobi.c

Implementations#

PCJacobiSetFixDiagonal_Jacobi in src/ksp/pc/impls/jacobi/jacobi.c

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