petsc-master 2018-05-23
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PCBJacobiSetLocalBlocks

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

Synopsis

#include "petscpc.h" 
PetscErrorCode  PCBJacobiSetLocalBlocks(PC pc,PetscInt blocks,const PetscInt lens[])
Not Collective

Input Parameters

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

Options Database Key

-pc_bjacobi_local_blocks <blocks> -Sets the number of local blocks

Note

Currently only a limited number of blocking configurations are supported.

Keywords

PC, set, number, Jacobi, local, blocks

See Also

PCSetUseAmat(), PCBJacobiSetTotalBlocks()

Level

intermediate

Location

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

Examples

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

Implementations

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

Index of all PC routines
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Index of all manual pages