MatPartitioningSetFromOptions

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

Synopsis

#include "petscmat.h" 
PetscErrorCode MatPartitioningSetFromOptions(MatPartitioning part)

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/mat/tutorials/ex17.c
src/ksp/ksp/tutorials/ex64.c
src/mat/tutorials/ex11.c
src/mat/tutorials/ex15.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

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Index of all MatGraphOperations routines
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Index of all manual pages