PCMGSetDistinctSmoothUp#
sets the up (post) smoother to be a separate 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
Input Parameter#
pc - the preconditioner context
Options Database Key#
-pc_mg_distinct_smoothup
- use distinct smoothing objects
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.
See Also#
Level#
advanced
Location#
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages