PCASMSetDMSubdomains#
Indicates whether to use DMCreateDomainDecomposition() to define the subdomains, whenever possible.
Synopsis#
#include "petscpc.h"
PetscErrorCode PCASMSetDMSubdomains(PC pc, PetscBool flg)
Logically Collective
Input Parameters#
pc - the preconditioner
flg - boolean indicating whether to use subdomains defined by the
DM
Options Database Key#
-pc_asm_dm_subdomains
- use subdomains defined by theDMwithDMCreateDomainDecomposition()
Note#
PCASMSetTotalSubdomains() and PCASMSetOverlap() take precedence over PCASMSetDMSubdomains(),
so setting either of the first two effectively turns the latter off.
Developer Note#
This should be PCASMSetUseDMSubdomains(), similarly for the options database key
See Also#
KSP: Linear System Solvers, PCASM, PCASMGetDMSubdomains(), PCASMSetTotalSubdomains(), PCASMSetOverlap()
PCASMCreateSubdomains2D(), PCASMSetLocalSubdomains(), PCASMGetLocalSubdomains()
Level#
intermediate
Location#
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages