petsc-3.10.2 2018-10-09
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PCMGSetDistinctSmoothUp

sets the up (post) smoother to be a seperate KSP from the down (pre) smoother on all levels and adds the suffix _up to the options name

Synopsis

#include "petscksp.h" 
PetscErrorCode  PCMGSetDistinctSmoothUp(PC pc)
Logically Collective on PC

Input Parameters

pc - the preconditioner context

Options Database Key

-pc_mg_distinct_smoothup-

Notes

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

PCMGSetNumberSmooth()

Level

advanced

Location

src/ksp/pc/impls/mg/mg.c
Index of all PCMG routines
Table of Contents for all manual pages
Index of all manual pages