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 the DM

Note#

PCASMSetTotalSubdomains() and PCASMSetOverlap() take precedence over PCASMSetDMSubdomains(), so setting either of the first two effectively turns the latter off.

See Also#

KSP: Linear System Solvers, PCASM, PCASMGetDMSubdomains(), PCASMSetTotalSubdomains(), PCASMSetOverlap() PCASMCreateSubdomains2D(), PCASMSetLocalSubdomains(), PCASMGetLocalSubdomains()

Level#

intermediate

Location#

src/ksp/pc/impls/asm/asm.c

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