petsc-3.9.4 2018-09-11
Report Typos and Errors

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

Implementations

PCBDDCSetCoarseningRatio_BDDC in src/ksp/pc/impls/bddc/bddc.c

Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages