petsc-3.7.5 2017-01-01
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