petsc-3.7.5 2017-01-01
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
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages