PETSc version 3.15.5
SNESFASSetLevels
Sets the number of levels to use with FAS. 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. | 
Notes
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
 SNESFASGetLevels()
Level
intermediate
Location
src/snes/impls/fas/fasfunc.c
Index of all SNESFAS routines
Table of Contents for all manual pages
Index of all manual pages