#include "petscpc.h" PetscErrorCode PCICCSetShift(PC pc,PetscTruth shift)Manteuffel shifting for ICC uses a different algorithm than the ILU case. Here we base the shift on the lack of diagonal dominance when a negative pivot occurs.
pc | - the preconditioner context | |
shifting | - PETSC_TRUE to set shift else PETSC_FALSE |
Level:intermediate
Location:src/ksp/pc/impls/icc/icc.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages