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 Parameter#

  • 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#

KSP: Linear System Solvers, PCLU, PCCHOLESKY, 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
Table of Contents for all manual pages
Index of all manual pages