A class to define linear partitions. More...

#include <Ifpack2_LinearPartitioner_decl.hpp>

Inheritance diagram for Ifpack2::LinearPartitioner< GraphType >:

Public Member Functions
	LinearPartitioner (const Teuchos::RCP< const row_graph_type > &graph)
	Constructor. More...

virtual	~LinearPartitioner ()
	Destructor. More...

void	setPartitionParameters (Teuchos::ParameterList &List)
	Set the partitioner's parameters (none for linear partitioning). More...

void	computePartitions ()
	Compute the partitions. More...

Public Member Functions inherited from Ifpack2::OverlappingPartitioner< GraphType >
	OverlappingPartitioner (const Teuchos::RCP< const row_graph_type > &graph)
	Constructor. More...

virtual	~OverlappingPartitioner ()
	Destructor. More...

int	numLocalParts () const
	Number of computed local partitions. More...

int	overlappingLevel () const
	The number of levels of overlap. More...

local_ordinal_type	operator() (const local_ordinal_type MyRow) const
	Local index of the nonoverlapping partition of the given row. More...

local_ordinal_type	operator() (const local_ordinal_type i, const local_ordinal_type j) const
	Local index of the overlapping partition of the j-th vertex in partition i. More...

size_t	numRowsInPart (const local_ordinal_type Part) const
	the number of rows contained in the given partition. More...

void	rowsInPart (const local_ordinal_type Part, Teuchos::ArrayRCP< local_ordinal_type > &List) const
	Fill `List` with the local indices of the rows in the (overlapping) partition `Part`. More...

virtual Teuchos::ArrayView < const local_ordinal_type >	nonOverlappingPartition () const
	A view of the local indices of the nonoverlapping partitions of each local row. More...

virtual void	setParameters (Teuchos::ParameterList &List)
	Set all the parameters for the partitioner. More...

virtual void	compute ()
	Computes the partitions. Returns 0 if successful. More...

virtual void	computeOverlappingPartitions ()
	Computes the partitions. Returns 0 if successful. More...

virtual bool	isComputed () const
	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...

std::string	description () const
	Return a simple one-line description of this object. More...

void	describe (Teuchos::FancyOStream &out, const Teuchos::EVerbosityLevel verbLevel=Teuchos::Describable::verbLevel_default) const
	Print the object with some verbosity level to an FancyOStream object. More...

Public Member Functions inherited from Ifpack2::Partitioner< GraphType >
virtual	~Partitioner ()
	Destructor. More...

Additional Inherited Members
Protected Attributes inherited from Ifpack2::OverlappingPartitioner< GraphType >
int	NumLocalParts_
	Number of local subgraphs. More...

Teuchos::Array < local_ordinal_type >	Partition_
	Mapping from local row to partition number. More...

Teuchos::Array < Teuchos::ArrayRCP < local_ordinal_type > >	Parts_
	Mapping from partition to all rows it contains. More...

Teuchos::RCP< const row_graph_type >	Graph_
	The graph to be partitioned. More...

int	OverlappingLevel_
	Level of overlap. More...

bool	IsComputed_
	If `true`, the graph has been successfully partitioned. More...

bool	verbose_
	If `true`, information are reported to stdout. More...

bool	maintainSparsity_
	If `true`, only add row to partition (block) if doing so won't add new columns to the column map. More...

Detailed Description

template<class GraphType>
class Ifpack2::LinearPartitioner< GraphType >

A class to define linear partitions.

Template Parameters

GraphType Specialization of Tpetra::RowGraph or Tpetra::CrsGraph.

This class places the rows of the local graph into nonintersecting groups. The number of groups is given by NumLocalParts_, a member of the base class OverlappingPartitioner. Local row i is placed in the group floor(i/NumLocalParts_), with the exception that any leftover rows are placed in the largest group NumLocalParts_-1.

Constructor & Destructor Documentation

template<class GraphType >

Ifpack2::LinearPartitioner< GraphType >::LinearPartitioner ( const Teuchos::RCP< const row_graph_type > & graph )

Constructor.

template<class GraphType >

Ifpack2::LinearPartitioner< GraphType >::~LinearPartitioner ( )

virtual

Destructor.

Member Function Documentation

template<class GraphType >

void Ifpack2::LinearPartitioner< GraphType >::setPartitionParameters ( Teuchos::ParameterList & List )

virtual

Set the partitioner's parameters (none for linear partitioning).

Implements Ifpack2::OverlappingPartitioner< GraphType >.

template<class GraphType >

void Ifpack2::LinearPartitioner< GraphType >::computePartitions ( )

virtual

Compute the partitions.

Implements Ifpack2::OverlappingPartitioner< GraphType >.

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

Public Member Functions

Additional Inherited Members

Detailed Description

template<class GraphType> class Ifpack2::LinearPartitioner< GraphType >

Constructor & Destructor Documentation

Member Function Documentation

template<class GraphType>
class Ifpack2::LinearPartitioner< GraphType >