petsc-3.4.5 2014-06-29

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