petsc-3.10.5 2019-03-28
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 PC routines
Table of Contents for all manual pages
Index of all manual pages