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Ifpack_OverlapGraph Class Reference

Ifpack_OverlapGraph: Constructs a graph for use with Ifpack preconditioners. More...

#include <Ifpack_OverlapGraph.h>

Inheritance diagram for Ifpack_OverlapGraph:

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Collaboration diagram for Ifpack_OverlapGraph:
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List of all members.

Public Member Functions

Constructors/Destructor
 Ifpack_OverlapGraph (const Epetra_CrsGraph *UserMatrixGraph, int OverlapLevel)
 Constructor using Epetra_CrsGraph.
 Ifpack_OverlapGraph (const Epetra_RowMatrix *UserMatrix, int OverlapLevel)
 Constructor using Epetra_RowMatrix.
 Ifpack_OverlapGraph (const Ifpack_OverlapGraph &Source)
 Copy constructor.
virtual ~Ifpack_OverlapGraph ()
 Ifpack_CrsIlut Destructor.
Atribute access methods.
int SetParameters (const Teuchos::ParameterList &parameterlist, bool cerr_warning_if_unused=false)
 Set parameters using a Teuchos::ParameterList object.
const Epetra_CrsGraph & OverlapGraph () const
 Returns the overlap graph object.
const Epetra_BlockMap & OverlapRowMap () const
 Returns the RowMap associated with the overlap graph.
const Epetra_Import & OverlapImporter () const
 Returns the overlap graph object.
int OverlapLevel () const
 Returns the level of overlap used to create this graph.
Epetra_Object print method (allows use of << operator with this class).
void Print (ostream &os) const

Protected Member Functions

int ConstructOverlapGraph (const Epetra_CrsGraph *UserMatrixGraph)

Protected Attributes

Epetra_CrsGraph * OverlapGraph_
const Epetra_CrsGraph * UserMatrixGraph_
const Epetra_RowMatrix * UserMatrix_
Epetra_BlockMap * OverlapRowMap_
Epetra_Import * OverlapImporter_
int OverlapLevel_
bool IsOverlapped_

Detailed Description

Ifpack_OverlapGraph: Constructs a graph for use with Ifpack preconditioners.

Definition at line 49 of file Ifpack_OverlapGraph.h.

Constructor & Destructor Documentation

Ifpack_OverlapGraph::Ifpack_OverlapGraph (  const Epetra_CrsGraph *  UserMatrixGraph,
int  OverlapLevel
) 
 

Constructor using Epetra_CrsGraph.

Creates an Ifpack_OverlapGraph object from the user graph.

Parameters:
In UserMatrixGraph - Graph from user matrix.

Definition at line 43 of file Ifpack_OverlapGraph.cpp.

References Epetra_BlockMap::DistributedGlobal(), and Epetra_CrsGraph::DomainMap().

Ifpack_OverlapGraph::Ifpack_OverlapGraph (  const Epetra_RowMatrix *  UserMatrix,
int  OverlapLevel
) 
 

Constructor using Epetra_RowMatrix.

Creates an Ifpack_OverlapGraph object from the user graph implicitly defined by the Epetra_RowMatrix interface.

Parameters:
In RowMatrix - An object that has implemented the Epetra_RowMatrix interface.

Definition at line 57 of file Ifpack_OverlapGraph.cpp.

References Epetra_BlockMap::DistributedGlobal(), Epetra_Operator::OperatorDomainMap(), and Epetra_Object::ReportError().

Member Function Documentation

int Ifpack_OverlapGraph::OverlapLevel (   )  const [inline]
 

Returns the level of overlap used to create this graph.

The graph created by this class uses a recursive definition 0f overlap. Level one overlap is created by copying all off-processor rows that are reached to be at least one column of the rows that are on processor. Level two overlap is the same process used on the level one graph.

Definition at line 103 of file Ifpack_OverlapGraph.h.

The documentation for this class was generated from the following files:
Generated on Thu Sep 18 12:37:09 2008 for IFPACK by doxygen 1.3.9.1