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/*
************************************************************************
Isorropia: Partitioning and Load Balancing Package
Copyright (2006) Sandia Corporation
Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
license for use of this work by or on behalf of the U.S. Government.
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA
************************************************************************
*/
//@HEADER
#ifndef _Isorropia_EpetraProber_hpp_
#define _Isorropia_EpetraProber_hpp_
#include <Isorropia_ConfigDefs.hpp>
#include <Teuchos_ParameterList.hpp>
#include <Isorropia_Colorer.hpp>
#include <Isorropia_EpetraColorer.hpp>
#ifdef HAVE_EPETRA
#include <Epetra_CrsGraph.h>
#include <Teuchos_RCP.hpp>
class Epetra_MultiVector;
class Epetra_CrsMatrix;
class Epetra_Operator;
namespace Isorropia {
namespace Epetra {
/** An implementation of the Prober interface that operates on
Epetra matrices and linear systems. The Prober currently works only on structurally
symmetric problems. Support for structually non-symmetric problems is under development.
\ingroup probing_grp
*/
class Prober {
public:
/** Constructor
\param[in] input_graph the graph whose sparsity pattern is to guide the probing.
\param[in] paramlist this parameter list may be used to pass parameters to the colorer.
\param[in] compute_now if @c true, the coloring is computed in the constructor, otherwise call Isorropia::Epetra::Prober::color when you want to compute the coloring, defaults to @c false
\ingroup probing_grp
*/
Prober(Teuchos::RCP<const Epetra_CrsGraph> input_graph,
const Teuchos::ParameterList& paramlist,
bool compute_now=true);
/** Constructor
\param[in] input_graph the graph whose sparsity pattern is to guide the probing.
\param[in] paramlist this parameter list may be used to pass parameters to the colorer.
\param[in] compute_now if @c true, the coloring is computed in the constructor, otherwise call Isorropia::Epetra::Prober::color when you want to compute the coloring, defaults to @c false
\ingroup probing_grp
*/
Prober(const Epetra_CrsGraph * input_graph,
const Teuchos::ParameterList& paramlist,
bool compute_now=true);
/** Constructor
\param[in] input_matrix the matrix whose sparsity pattern is to guide the probing.
\param[in] paramlist this parameter list may be used to pass parameters to the colorer.
\param[in] compute_now if @c true, the coloring is computed in the constructor, otherwise call Isorropia::Epetra::Prober::color when you want to compute the coloring, defaults to @c true
\ingroup probing_grp
*/
Prober(Teuchos::RCP<const Epetra_CrsMatrix> input_matrix,
const Teuchos::ParameterList & paramlist,
bool compute_now=true);
/** Constructor
\param[in] input_matrix the matrix whose sparsity pattern is to guide the probing.
\param[in] paramlist this parameter list may be used to pass parameters to the colorer.
\param[in] compute_now if @c true, the coloring is computed in the constructor, otherwise call Isorropia::Epetra::Prober::color when you want to compute the coloring, defaults to @c true
\ingroup probing_grp
*/
Prober(const Epetra_CrsMatrix * input_matrix,
const Teuchos::ParameterList & paramlist,
bool compute_now=true);
/** Default Constructor
*/
Prober();
/** Destructor */
~Prober(){delete colorer_;}
/** Sets the parameter list */
void setList(const Teuchos::ParameterList& paramlist);
/** Sets the graph */
void setGraph(Teuchos::RCP<const Epetra_CrsGraph> input_graph){input_graph_=input_graph; has_colored=false;}
/** Compute the coloring.
\ingroup probing_grp
*/
void color();
/** @ingroup probing_grp
Perform the actual probing.
\param[in] op is the operator we are probing
\param[in,out] out_matrix is the matrix
*/
int probe(const Epetra_Operator & op, Epetra_CrsMatrix & out_matrix);
/** @ingroup probing_grp
Perform the actual probing.
\param[in] op is the operator we are probing
\return RCP to the matrix
*/
Teuchos::RCP<Epetra_CrsMatrix> probe(const Epetra_Operator & op);
private:
Teuchos::RCP<const Epetra_CrsGraph> input_graph_;
Colorer *colorer_;
Teuchos::ParameterList List_;
bool has_colored;
};//class Prober
}//namespace Epetra
}//namespace Isorropia
#endif //HAVE_EPETRA
#endif
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