petsc-3.14.6 2021-03-30
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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 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.
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