Ifpack_METISPartitioner Class Reference

Ifpack_METISPartitioner: A class to decompose Ifpack_Graph's using METIS. More...

#include <Ifpack_METISPartitioner.h>

Inheritance diagram for Ifpack_METISPartitioner:

Public Member Functions
	Ifpack_METISPartitioner (const Ifpack_Graph *Graph)
	Constructor. More...
virtual	~Ifpack_METISPartitioner ()
	Destructor. More...
int	SetPartitionParameters (Teuchos::ParameterList &List)
	Sets all the parameters for the partitioner (none at moment). More...
int	ComputePartitions ()
	Computes the partitions. Returns 0 if successful. More...
Public Member Functions inherited from Ifpack_OverlappingPartitioner
	Ifpack_OverlappingPartitioner (const Ifpack_Graph *Graph)
	Constructor. More...
virtual	~Ifpack_OverlappingPartitioner ()
	Destructor. More...
int	NumLocalParts () const
	Returns the number of computed local partitions. More...
int	OverlappingLevel () const
	Returns the overlapping level. More...
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. More...
int	NumRowsInPart (const int Part) const
	Returns the number of rows contained in specified partition. More...
int	RowsInPart (const int Part, int *List) const
	Copies into List the rows in the (overlapping) partition Part. More...
const int *	NonOverlappingPartition () const
	Returns a pointer to the integer vector containing the non-overlapping partition ID of each local row. More...
virtual int	SetParameters (Teuchos::ParameterList &List)
	Sets all the parameters for the partitioner. More...
virtual int	Compute ()
	Computes the partitions. Returns 0 if successful. More...
virtual int	ComputeOverlappingPartitions ()
	Computes the partitions. Returns 0 if successful. More...
bool	IsComputed ()
	Returns true if partitions have been computed successfully. More...
virtual std::ostream &	Print (std::ostream &os) const
	Prints basic information on iostream. This function is used by operator<<. More...
Public Member Functions inherited from Ifpack_Partitioner
virtual	~Ifpack_Partitioner ()
	Destructor. More...

Private Attributes
bool	UseSymmetricGraph_

Additional Inherited Members
Protected Member Functions inherited from Ifpack_OverlappingPartitioner
int	NumMyRows () const
	Returns the number of local rows. More...
int	NumMyNonzeros () const
	Returns the number of local nonzero elements. More...
int	NumGlobalRows () const
	Returns the number of global rows. More...
long long	NumGlobalRows64 () const
int	MaxNumEntries () const
	Returns the max number of local entries in a row. More...
const Epetra_Comm &	Comm () const
	Returns the communicator object of Graph. More...
Protected Attributes inherited from Ifpack_OverlappingPartitioner
int	NumLocalParts_
	Number of local subgraphs. More...
std::vector< int >	Partition_
	Partition_[i] contains the ID of non-overlapping part it belongs to. More...
std::vector< std::vector< int > >	Parts_
	Parts_[i][j] is the ID of the j-th row contained in the (overlapping) More...
const Ifpack_Graph *	Graph_
	Reference to the graph to be partitioned. More...
int	OverlappingLevel_
	Overlapping level. More...
bool	IsComputed_
	If true, the graph has been successfully partitioned. More...
bool	verbose_
	If true, information are reported on cout. More...

Detailed Description

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.

Date

Last modified: Oct-04.

Definition at line 71 of file Ifpack_METISPartitioner.h.

Constructor & Destructor Documentation

Ifpack_METISPartitioner::Ifpack_METISPartitioner ( const Ifpack_Graph *  Graph )

inline

Constructor.

Definition at line 76 of file Ifpack_METISPartitioner.h.

virtual Ifpack_METISPartitioner::~Ifpack_METISPartitioner ( )

inlinevirtual

Destructor.

Definition at line 82 of file Ifpack_METISPartitioner.h.

Member Function Documentation

int Ifpack_METISPartitioner::SetPartitionParameters ( Teuchos::ParameterList &  List )

inlinevirtual

Sets all the parameters for the partitioner (none at moment).

Implements Ifpack_OverlappingPartitioner.

Definition at line 85 of file Ifpack_METISPartitioner.h.

int Ifpack_METISPartitioner::ComputePartitions ( )

virtual

Computes the partitions. Returns 0 if successful.

Implements Ifpack_OverlappingPartitioner.

Definition at line 75 of file Ifpack_METISPartitioner.cpp.

Member Data Documentation

bool Ifpack_METISPartitioner::UseSymmetricGraph_

private

Definition at line 102 of file Ifpack_METISPartitioner.h.

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The documentation for this class was generated from the following files:

• Ifpack_METISPartitioner.h
• Ifpack_METISPartitioner.cpp