PETSc version 3.17.5

PCBJacobiSetLocalBlocks

Sets the local number of blocks for the block Jacobi preconditioner.

#include "petscpc.h" 
PetscErrorCode  PCBJacobiSetLocalBlocks(PC pc,PetscInt blocks,const PetscInt lens[])

Not Collective

	pc	- the preconditioner context
	blocks	- the number of blocks
	lens	- [optional] integer array containing size of each block

-pc_bjacobi_local_blocks <blocks>

- Sets the number of local blocks

Currently only a limited number of blocking configurations are supported.

intermediate