petsc-3.11.4 2019-09-28

PCASMGetLocalSubdomains

Gets the local subdomains (for this processor only) for the additive Schwarz preconditioner.

#include "petscpc.h" 
PetscErrorCode  PCASMGetLocalSubdomains(PC pc,PetscInt *n,IS *is[],IS *is_local[])

Not Collective

pc -the preconditioner context

	n	- the number of subdomains for this processor (default value = 1)
	is	- the index sets that define the subdomains for this processor
	is_local	- the index sets that define the local part of the subdomains for this processor (can be NULL)

The IS numbering is in the parallel, global numbering of the vector.

PC, ASM, set, local, subdomains, additive Schwarz

advanced