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

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 - Sets the number of global blocks

Note#

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

See Also#

PCBJACOBI, PCSetUseAmat(), PCBJacobiSetLocalBlocks()

Level#

intermediate

Location#

src/ksp/pc/impls/bjacobi/bjacobi.c

Examples#

src/ksp/ksp/tutorials/ex7.c
src/ksp/ksp/tutorials/ex7f.F90

Implementations#

PCBJacobiSetTotalBlocks_BJacobi in src/ksp/pc/impls/bjacobi/bjacobi.c

Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages