SNESFASSetLevels#
Sets the number of levels to use with SNESFAS
. Must be called before any other FAS routine.
Synopsis#
#include "petscsnes.h"
PetscErrorCode SNESFASSetLevels(SNES snes, PetscInt levels, MPI_Comm *comms)
Input Parameters#
snes - the snes context
levels - the number of levels
comms - optional communicators for each level; this is to allow solving the coarser problems on smaller sets of processors.
Note#
If the number of levels is one then the multigrid uses the -fas_levels
prefix
for setting the level options rather than the -fas_coarse
prefix.
See Also#
Level#
intermediate
Location#
Index of all SNESFAS routines
Table of Contents for all manual pages
Index of all manual pages