petsc-3.7.1 2016-05-15
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 Many br
Input Parameters
| mg | - the multigrid context Many br |
| n | - the number of smoothing steps Many br |
Options Database Key
-pc_mg_smoothdown <n> -Sets number of pre-smoothing steps Many br
Many br
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