MatPartitioningApply#
Gets a partitioning for the graph represented by a sparse matrix.
Synopsis#
#include "petscmat.h"
PetscErrorCode MatPartitioningApply(MatPartitioning matp, IS *partitioning)
Collective
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#
MatPartitioning
, MatPartitioningType
, MatPartitioningRegister()
, MatPartitioningCreate()
,
MatPartitioningDestroy()
, MatPartitioningSetAdjacency()
, ISPartitioningToNumbering()
,
ISPartitioningCount()
Level#
beginner
Location#
Examples#
src/mat/tutorials/ex11.c.html
src/mat/tutorials/ex15.c.html
src/mat/tutorials/ex15f.F90.html
src/mat/tutorials/ex17.c.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