petsc-master 2019-08-15
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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.

See Also

PCSetUseAmat(), PCBJacobiSetLocalBlocks()

Level

intermediate

Location

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

Examples

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

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