petsc-3.11.4 2019-09-28
PCFactorGetShiftAmount
Gets the tolerance used to define a zero privot
Synopsis
#include "petscpc.h"
PetscErrorCode PCFactorGetShiftAmount(PC pc,PetscReal *shift)
Not Collective
Input Parameters
pc -the preconditioner context
Output Parameter
shift -how much to shift the diagonal entry
See Also
PCFactorSetShiftAmount(), PCFactorSetShiftType(), PCFactorGetShiftType()
Level
intermediate
Location
src/ksp/pc/impls/factor/factor.c
Implementations
PCFactorGetShiftAmount_Factor in src/ksp/pc/impls/factor/factimpl.c
Index of all PC routines
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Index of all manual pages