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IFPACK
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IFPACK
Development
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Ifpack_METISPartitioner: A class to decompose Ifpack_Graph's using METIS. More...
#include <Ifpack_METISPartitioner.h>
Public Member Functions | |
| Ifpack_METISPartitioner (const Ifpack_Graph *Graph) | |
| Constructor. | |
| virtual | ~Ifpack_METISPartitioner () |
| Destructor. | |
| int | SetPartitionParameters (Teuchos::ParameterList &List) |
| Sets all the parameters for the partitioner (none at moment). | |
| int | ComputePartitions () |
| Computes the partitions. Returns 0 if successful. | |
 Public Member Functions inherited from Ifpack_OverlappingPartitioner | |
| Ifpack_OverlappingPartitioner (const Ifpack_Graph *Graph) | |
| Constructor. | |
| virtual | ~Ifpack_OverlappingPartitioner () |
| Destructor. | |
| int | NumLocalParts () const |
| Returns the number of computed local partitions. | |
| int | OverlappingLevel () const |
| Returns the overlapping level. | |
| int | operator() (int MyRow) const |
| Returns the local non-overlapping partition ID of the specified row. More... | |
| int | operator() (int i, int j) const |
| Returns the local overlapping partition ID of the j-th node in partition i. | |
| int | NumRowsInPart (const int Part) const |
| Returns the number of rows contained in specified partition. | |
| int | RowsInPart (const int Part, int *List) const |
| Copies into List the rows in the (overlapping) partition Part. | |
| const int * | NonOverlappingPartition () const |
| Returns a pointer to the integer vector containing the non-overlapping partition ID of each local row. | |
| virtual int | SetParameters (Teuchos::ParameterList &List) |
| Sets all the parameters for the partitioner. More... | |
| virtual int | Compute () |
| Computes the partitions. Returns 0 if successful. | |
| virtual int | ComputeOverlappingPartitions () |
| Computes the partitions. Returns 0 if successful. | |
| bool | IsComputed () |
| Returns true if partitions have been computed successfully. | |
| virtual std::ostream & | Print (std::ostream &os) const |
| Prints basic information on iostream. This function is used by operator<<. | |
| Public Member Functions inherited from Ifpack_Partitioner | |
| virtual | ~Ifpack_Partitioner () |
| Destructor. | |
Additional Inherited Members | |
| Protected Member Functions inherited from Ifpack_OverlappingPartitioner | |
| int | NumMyRows () const |
| Returns the number of local rows. | |
| int | NumMyNonzeros () const |
| Returns the number of local nonzero elements. | |
| int | NumGlobalRows () const |
| Returns the number of global rows. | |
| long long | NumGlobalRows64 () const |
| int | MaxNumEntries () const |
| Returns the max number of local entries in a row. | |
| const Epetra_Comm & | Comm () const |
| Returns the communicator object of Graph. | |
| Protected Attributes inherited from Ifpack_OverlappingPartitioner | |
| int | NumLocalParts_ |
| Number of local subgraphs. | |
| std::vector< int > | Partition_ |
| Partition_[i] contains the ID of non-overlapping part it belongs to. | |
| std::vector< std::vector< int > > | Parts_ |
| Parts_[i][j] is the ID of the j-th row contained in the (overlapping) | |
| const Ifpack_Graph * | Graph_ |
| Reference to the graph to be partitioned. | |
| int | OverlappingLevel_ |
| Overlapping level. | |
| bool | IsComputed_ |
If true, the graph has been successfully partitioned. | |
| bool | verbose_ |
If true, information are reported on cout. | |
Ifpack_METISPartitioner: A class to decompose Ifpack_Graph's using METIS.
Class Ifpack_METISPartitioner enables the decomposition of the local Ifpack_Graph's using METIS. In order to work properly, this class requires IFPACK to be configured with option –enable-ifpack-metis. Otherwise, this class will always create one partition.
Definition at line 65 of file Ifpack_METISPartitioner.h.
1.8.5
