petsc-3.12.5 2020-03-29
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