petsc-3.12.5 2020-03-29

PCBJacobiSetTotalBlocks

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

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

Collective on PC

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

-pc_bjacobi_blocks <blocks> -Sets the number of global blocks

Currently only a limited number of blocking configurations are supported. All processors sharing the PC must call this routine with the same data.

intermediate