#include "petscpc.h" PetscErrorCode PCBJacobiGetSubKSP(PC pc,PetscInt *n_local,PetscInt *first_local,KSP *ksp)Not Collective
|pc||- the preconditioner context|
|n_local||- the number of blocks on this processor, or NULL|
|first_local||- the global number of the first block on this processor, or NULL|
|ksp||- the array of KSP contexts|
Currently for some matrix implementations only 1 block per processor is supported.
You must call KSPSetUp() or PCSetUp() before calling PCBJacobiGetSubKSP().
Fortran Usage: You must pass in a KSP array that is large enough to contain all the local KSPs. You can call PCBJacobiGetSubKSP(pc,nlocal,firstlocal,PETSC_NULL_KSP,ierr) to determine how large the KSP array must be.