petsc-master 2014-09-17
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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