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// ***********************************************************************
//
// EpetraExt: Epetra Extended - Linear Algebra Services Package
// Copyright (2001) 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
// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
// @HEADER
#ifndef EpetraExt_CRSMATRIX_TRANSPOSE_H
#define EpetraExt_CRSMATRIX_TRANSPOSE_H
#include <EpetraExt_Transform.h>
class Epetra_RowMatrix;
class Epetra_CrsMatrix;
class Epetra_Map;
class Epetra_Export;
namespace EpetraExt {
//! Transform to form the explicit transpose of a Epetra_RowMatrix
class RowMatrix_Transpose : public SameTypeTransform<Epetra_RowMatrix>
{
public:
//! Destructor
~RowMatrix_Transpose();
//! Constructor
/*!
\param In
MakeDataContiguous - Whether to optimize form of matrix to be contiguous data storage.
\param In
TransposeRowMap - Map to be used for row mapping of transpose matrix
\param In
IgnoreNonLocalCols - Whether to ignore non-local columns for the transpose
*/
RowMatrix_Transpose( bool MakeDataContiguous = false,
Epetra_Map * TransposeRowMap = 0,
bool IgnoreNonLocalCols = false)
: TransposeMatrix_(0),
TransposeExporter_(0),
TransposeRowMap_(TransposeRowMap),
MakeDataContiguous_(MakeDataContiguous),
IgnoreNonLocalCols_(IgnoreNonLocalCols),
NumMyRows_(0),
NumMyCols_(0),
MaxNumEntries_(0),
Indices_(0),
Values_(0),
TransNumNz_(0),
TransIndices_(0),
TransValues_(0),
TransMyGlobalEquations_(0),
OrigMatrixIsCrsMatrix_(false)
{}
//! Transpose Tranform Operator
NewTypeRef operator()( OriginalTypeRef orig );
//! Foward Data Migration
bool fwd();
//! Reverse Data Migration
bool rvs();
private:
Epetra_CrsMatrix * TransposeMatrix_;
Epetra_Export * TransposeExporter_;
Epetra_Map * TransposeRowMap_;
bool MakeDataContiguous_;
bool IgnoreNonLocalCols_;
int NumMyRows_;
int NumMyCols_;
int MaxNumEntries_;
int * Indices_;
double * Values_;
int * TransNumNz_;
int ** TransIndices_;
double ** TransValues_;
int * TransMyGlobalEquations_;
bool OrigMatrixIsCrsMatrix_;
};
} //namespace EpetraExt
#endif //EpetraExt_ROWMATRIX_TRANSPOSE_H
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