petsc-3.7.3 2016-08-01
PCGASMSetUseDMSubdomains
Indicates whether to use DMCreateDomainDecomposition() to define the subdomains, whenever possible. Logically Collective
Synopsis
#include "petscpc.h"
PetscErrorCode PCGASMSetUseDMSubdomains(PC pc,PetscBool flg)
Input Parameter
| pc | - the preconditioner
|
| flg | - boolean indicating whether to use subdomains defined by the DM
|
Options Database Key
-pc_gasm_dm_subdomains -pc_gasm_overlap -pc_gasm_total_subdomains
Notes
PCGASMSetSubdomains(), PCGASMSetTotalSubdomains() or PCGASMSetOverlap() take precedence over PCGASMSetUseDMSubdomains(),
so setting PCGASMSetSubdomains() with nontrivial subdomain ISs or any of PCGASMSetTotalSubdomains() and PCGASMSetOverlap()
automatically turns the latter off.
Keywords
PC, ASM, DM, set, subdomains, additive Schwarz
See Also
PCGASMGetUseDMSubdomains(), PCGASMSetSubdomains(), PCGASMSetOverlap()
PCGASMCreateSubdomains2D()
Level:intermediate
Location:src/ksp/pc/impls/gasm/gasm.c
Index of all PC routines
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Index of all manual pages