petsc-3.15.0 2021-03-30
PCBDDCSetCoarseningRatio
Set coarsening ratio used in multilevel
Synopsis
#include "petscpc.h"
PetscErrorCode PCBDDCSetCoarseningRatio(PC pc,PetscInt k)
Logically collective on PC
Input Parameters
| pc | - the preconditioning context
|
| k | - coarsening ratio (H/h at the coarser level)
|
Options Database Keys
| -pc_bddc_coarsening_ratio |
Notes
Approximatively k subdomains at the finer level will be aggregated into a single subdomain at the coarser level
See Also
PCBDDC, PCBDDCSetLevels()
Level
intermediate
Location
src/ksp/pc/impls/bddc/bddc.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages