PCASMSetLocalSubdomains

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

#include "petscpc.h" 
int PCASMSetLocalSubdomains(PC pc,int n,IS *is)

Collective on PC

	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 (or PETSC_NULL for PETSc to determine subdomains)

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

By default the ASM preconditioner uses 1 block per processor.

These index sets cannot be destroyed until after completion of the linear solves for which the ASM preconditioner is being used.

Use PCASMSetTotalSubdomains() to set the subdomains for all processors.

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