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#
KSP: Linear System Solvers, PCBJACOBI, PCSetUseAmat(), PCBJacobiSetLocalBlocks()
Level#
intermediate
Location#
Examples#
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