petsc-3.7.5 2017-01-01
PCMGSetNumberSmoothDown
Sets the number of pre-smoothing steps to use on all levels. Use PCMGGetSmootherDown() to set different pre-smoothing steps on different levels.
Synopsis
#include "petscksp.h"
PetscErrorCode PCMGSetNumberSmoothDown(PC pc,PetscInt n)
Logically Collective on PC
Input Parameters
| mg | - the multigrid context
|
| n | - the number of smoothing steps
|
Options Database Key
-pc_mg_smoothdown <n> -Sets number of pre-smoothing steps
Keywords
MG, smooth, down, pre-smoothing, steps, multigrid
See Also
PCMGSetNumberSmoothUp()
Level:advanced
Location:src/ksp/pc/impls/mg/mg.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages