MatPartitioningSetFromOptions#

Sets various partitioning options from the options database for the partitioning object

Synopsis#

Collective

Input Parameter#

  • part - the partitioning context.

Options Database Keys#

  • -mat_partitioning_type - (for instance, parmetis), use -help for a list of available methods

  • -mat_partitioning_nparts - number of subgraphs

Note#

If the partitioner has not been set by the user it uses one of the installed partitioner such as ParMetis. If there are no installed partitioners it does no repartioning.

See Also#

Matrices, Mat, MatPartitioning

Level#

beginner

Location#

src/mat/graphops/partition/partition.c

Examples#

src/ksp/ksp/tutorials/ex64.c
src/mat/tutorials/ex11.c
src/mat/tutorials/ex17f.F90
src/mat/tutorials/ex15.c
src/mat/tutorials/ex15f.F90
src/mat/tutorials/ex17.c

Implementations#

MatPartitioningSetFromOptions_Chaco() in src/mat/graphops/partition/impls/chaco/chaco.c
MatPartitioningSetFromOptions_Hierarchical() in src/mat/graphops/partition/impls/hierarchical/hierarchical.c
MatPartitioningSetFromOptions_Party() in src/mat/graphops/partition/impls/party/party.c
MatPartitioningSetFromOptions_Parmetis() in src/mat/graphops/partition/impls/pmetis/pmetis.c
MatPartitioningSetFromOptions_PTScotch() in src/mat/graphops/partition/impls/scotch/scotch.c


Index of all MatGraphOperations routines
Table of Contents for all manual pages
Index of all manual pages