petsc-3.14.6 2021-03-30

PCASMSetDMSubdomains

Indicates whether to use DMCreateDomainDecomposition() to define the subdomains, whenever possible.

#include "petscpc.h" 
PetscErrorCode  PCASMSetDMSubdomains(PC pc,PetscBool flg)

Logically Collective

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

-pc_asm_dm_subdomains

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

intermediate