petsc-3.5.2 2014-09-08
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PCBJacobiSetTotalBlocks

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

Synopsis

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

Input Parameters

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

Options Database Key

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

Notes

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

Keywords

set, number, Jacobi, global, total, blocks

See Also

PCSetUseAmat(), PCBJacobiSetLocalBlocks()

Level:intermediate
Location:
src/ksp/pc/impls/bjacobi/bjacobi.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/ksp/ksp/examples/tutorials/ex7.c.html