PETSc version 3.16.5
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# 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 Parameters

| 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

### 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
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