petsc-3.14.6 2021-03-30
MatPartitioningApply
Gets a partitioning for a matrix.
Synopsis
#include "petscmat.h"
PetscErrorCode MatPartitioningApply(MatPartitioning matp,IS *partitioning)
Collective on Mat
Input Parameters
| matp | - the matrix partitioning object
|
Output Parameters
| partitioning | - the partitioning. For each local node this tells the processor
number that that node is assigned to.
|
Options Database Keys
To specify the partitioning through the options database, use one of
the following
-mat_partitioning_type parmetis, -mat_partitioning current
To see the partitioning result
-mat_partitioning_view
The user can define additional partitionings; see MatPartitioningRegister().
See Also
MatPartitioningRegister(), MatPartitioningCreate(),
MatPartitioningDestroy(), MatPartitioningSetAdjacency(), ISPartitioningToNumbering(),
ISPartitioningCount()
Level
beginner
Location
src/mat/partition/partition.c
Examples
src/mat/tutorials/ex11.c.html
src/mat/tutorials/ex15.c.html
src/mat/tutorials/ex17.c.html
src/mat/tutorials/ex15f.F90.html
src/mat/tutorials/ex17f.F90.html
src/ksp/ksp/tutorials/ex64.c.html
Implementations
MatPartitioningApply_Chaco in src/mat/partition/impls/chaco/chaco.c
MatPartitioningApply_Hierarchical in src/mat/partition/impls/hierarchical/hierarchical.c
MatPartitioningApply_Party in src/mat/partition/impls/party/party.c
MatPartitioningApply_Parmetis in src/mat/partition/impls/pmetis/pmetis.c
MatPartitioningApply_PTScotch in src/mat/partition/impls/scotch/scotch.c
Index of all MatOrderings routines
Table of Contents for all manual pages
Index of all manual pages