Ifpack_CrsIlut Class Reference

Ifpack_CrsIlut: ILUT preconditioner of a given Epetra_RowMatrix. More...

#include <Ifpack_CrsIlut.h>

Inheritance diagram for Ifpack_CrsIlut:

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Collaboration diagram for Ifpack_CrsIlut:
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List of all members.

Public Member Functions

Constructors/Destructor
 Ifpack_CrsIlut (const Ifpack_OverlapGraph *OverlapGraph, double DropTol=1.0E-4, double FillTol=1.0)
 Constructor using Ifpack_OverlapGraph.
 Ifpack_CrsIlut (const Epetra_RowMatrix *UserMatrix, double DropTol=1.0E-4, double FillTol=1.0)
 Constructor using Epetra_RowMatrix.
 Ifpack_CrsIlut (const Ifpack_CrsIlut &Source)
 Copy constructor.
virtual ~Ifpack_CrsIlut ()
 Ifpack_CrsIlut Destructor.
Initialization methods.
int SetDropTol (double DropTol)
 Set Drop tolerance value as defined by the ILUT algorithm.
int SetFillTol (double FillTol)
 Set fill tolerance value as defined by the ILUT algorithm.
int SetParameters (const Teuchos::ParameterList &parameterlist, bool cerr_warning_if_unused=false)
 Set parameters using a Teuchos::ParameterList object.
Attribute access methods.
double DropTol () const
 Set Drop tolerance value as defined by the ILUT algorithm.
double FillTol () const
 Set fill tolerance value as defined by the ILUT algorithm.

Protected Member Functions

Methods needed to implement OverlapFactorObject.
int ProcessOverlapMatrix (const Epetra_RowMatrix &A)
 Processes the overlapped user matrix for computing the ILUT preconditioner.
int DerivedFactor ()
 Compute ILUT factors L and U: WARNING: THIS ROUTINE IS NOT USER CALLABLE, CALL Factor().

Detailed Description

Ifpack_CrsIlut: ILUT preconditioner of a given Epetra_RowMatrix.


Constructor & Destructor Documentation

Ifpack_CrsIlut::Ifpack_CrsIlut const Ifpack_OverlapGraph OverlapGraph,
double  DropTol = 1.0E-4,
double  FillTol = 1.0
 

Constructor using Ifpack_OverlapGraph.

Creates an object from the overlap graph.

Parameters:
OverlapGraph (In) - Graph describing the graph that should be used for the factors.
DropTol (In/Default) - Drop tolerance used by ILUT algorithm.
FillTol (In/Default) - Fill tolerance used by ILUT algorithm.

Ifpack_CrsIlut::Ifpack_CrsIlut const Epetra_RowMatrix UserMatrix,
double  DropTol = 1.0E-4,
double  FillTol = 1.0
 

Constructor using Epetra_RowMatrix.

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

Parameters:
RowMatrix (In) - An object that has implemented the Epetra_RowMatrix interface.
DropTol (In/Default) - Drop tolerance used by ILUT algorithm.
FillTol (In/Default) - Fill tolerance used by ILUT algorithm.


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