petsc-3.3-p7 2013-05-11

PCBJacobiGetSubKSP

Gets the local KSP contexts for all blocks on this processor.

#include "petscpc.h" 
PetscErrorCode  PCBJacobiGetSubKSP(PC pc,PetscInt *n_local,PetscInt *first_local,KSP *ksp[])

Note Collective

pc -the preconditioner context

	n_local	- the number of blocks on this processor, or PETSC_NULL
	first_local	- the global number of the first block on this processor, or PETSC_NULL
	ksp	- the array of KSP contexts

After PCBJacobiGetSubKSP() the array of KSP contexts is not to be freed.

Currently for some matrix implementations only 1 block per processor is supported.

You must call KSPSetUp() or PCSetUp() before calling PCBJacobiGetSubKSP().

block, Jacobi, get, sub, KSP, context