petsc-3.14.6 2021-03-30
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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 Parameter

pc - the preconditioner
flg - boolean indicating whether to use subdomains defined by the DM

Options Database Key

-pc_asm_dm_subdomains

Notes

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

See Also

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