petsc-3.9.4 2018-09-11
PCSORGetIterations
Gets the number of inner iterations to be used by the SOR preconditioner. The default is 1.
Synopsis
#include "petscpc.h"
PetscErrorCode PCSORGetIterations(PC pc,PetscInt *its,PetscInt *lits)
Logically Collective on PC
Input Parameter
pc -the preconditioner context
Output Parameter
| lits | - number of local iterations, smoothings over just variables on processor
|
| its | - number of parallel iterations to use; each parallel iteration has lits local iterations
|
Options Database Key
| -pc_sor_its <its> | - Sets number of iterations
|
| -pc_sor_lits <lits> | - Sets number of local iterations
|
Notes: When run on one processor the number of smoothings is lits*its
Keywords
PC, SOR, SSOR, set, iterations
See Also
PCSORSetOmega(), PCSORSetSymmetric(), PCSORSetIterations()
Level
intermediate
Location
src/ksp/pc/impls/sor/sor.c
Implementations
PCSORGetIterations_SOR in src/ksp/pc/impls/sor/sor.c
Index of all PC routines
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