petsc-master 2014-09-19
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PCMGSetNumberSmoothUp

Sets the number of post-smoothing steps to use on all levels. Use PCMGGetSmootherUp() to set different numbers of post-smoothing steps on different levels.

Synopsis

#include "petscksp.h" 
PetscErrorCode  PCMGSetNumberSmoothUp(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_smoothup <n> -Sets number of post-smoothing steps

Note: this does not set a value on the coarsest grid, since we assume that there is no separate smooth up on the coarsest grid.

Keywords

MG, smooth, up, post-smoothing, steps, multigrid

See Also

PCMGSetNumberSmoothDown()

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