petsc-3.11.3 2019-06-26
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PCFactorGetShiftType

Gets the type of shift, if any, done when a zero pivot is detected

Synopsis

#include "petscpc.h" 
PetscErrorCode  PCFactorGetShiftType(PC pc,MatFactorShiftType *type)
Not Collective

Input Parameters

pc -the preconditioner context

Output Parameter

type -one of MAT_SHIFT_NONE, MAT_SHIFT_NONZERO, MAT_SHIFT_POSITIVE_DEFINITE, or MAT_SHIFT_INBLOCKS

See Also

PCFactorSetShiftType(), MatFactorShiftType, PCFactorSetShiftAmount(), PCFactorGetShiftAmount()

Level

intermediate

Location

src/ksp/pc/impls/factor/factor.c

Implementations

PCFactorGetShiftType_Factor in src/ksp/pc/impls/factor/factimpl.c

Index of all PC routines
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Index of all manual pages