Epetra_RowMatrix.h

Go to the documentation of this file.

/*
//@HEADER
// ************************************************************************
//
//               Epetra: Linear Algebra Services Package
//                 Copyright 2011 Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ************************************************************************
//@HEADER
*/

#ifndef EPETRA_ROWMATRIX_H
#define EPETRA_ROWMATRIX_H

class Epetra_Comm;
class Epetra_Import;
class Epetra_Export;
class Epetra_Vector;
class Epetra_MultiVector;
#include "Epetra_ConfigDefs.h"
#include "Epetra_Operator.h"
#include "Epetra_SrcDistObject.h"



class EPETRA_LIB_DLL_EXPORT Epetra_RowMatrix: public virtual Epetra_Operator, public virtual Epetra_SrcDistObject {

 public:

    virtual ~Epetra_RowMatrix() {};





    virtual int NumMyRowEntries(int MyRow, int & NumEntries) const = 0;


    virtual int MaxNumEntries() const = 0;


    virtual int ExtractMyRowCopy(int MyRow, int Length, int & NumEntries, double *Values, int * Indices) const = 0;


    virtual int ExtractDiagonalCopy(Epetra_Vector & Diagonal) const = 0;




    virtual int Multiply(bool TransA, const Epetra_MultiVector& X, Epetra_MultiVector& Y) const = 0;


    virtual int Solve(bool Upper, bool Trans, bool UnitDiagonal, const Epetra_MultiVector& X,
          Epetra_MultiVector& Y) const = 0;


    virtual int InvRowSums(Epetra_Vector& x) const = 0;


    virtual int LeftScale(const Epetra_Vector& x) = 0;


    virtual int InvColSums(Epetra_Vector& x) const = 0;


    virtual int RightScale(const Epetra_Vector& x) = 0;



    virtual bool Filled() const = 0;

    /* Returns the quantity \f$ \| A \|_\infty\f$ such that
       \f[\| A \|_\infty = \max_{1\lei\len} \sum_{i=1}^m |a_{ij}| \f].
    */
    virtual double NormInf() const = 0;

    /* Returns the quantity \f$ \| A \|_1\f$ such that
       \f[\| A \|_1= \max_{1\lej\len} \sum_{j=1}^n |a_{ij}| \f].
    */
    virtual double NormOne() const = 0;

    /*
      Note that depending on the matrix implementation, it is sometimes
      possible to have some nonzeros that appear on multiple processors.
      In that case, those nonzeros may be counted multiple times (also
      depending on the matrix implementation).
    */
#ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
    virtual int NumGlobalNonzeros() const = 0;
#endif
    virtual long long NumGlobalNonzeros64() const = 0;

#ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
    virtual int NumGlobalRows() const = 0;
#endif
    virtual long long NumGlobalRows64() const = 0;

#ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
    virtual int NumGlobalCols() const= 0;
#endif
    virtual long long NumGlobalCols64() const= 0;

#ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
    virtual int NumGlobalDiagonals() const = 0;
#endif
    virtual long long NumGlobalDiagonals64() const = 0;

    virtual int NumMyNonzeros() const = 0;

    virtual int NumMyRows() const = 0;

    virtual int NumMyCols() const = 0;

    virtual int NumMyDiagonals() const = 0;

    virtual bool LowerTriangular() const = 0;

    virtual bool UpperTriangular() const = 0;

    virtual const Epetra_Map & RowMatrixRowMap() const = 0;

    virtual const Epetra_Map & RowMatrixColMap() const = 0;

    virtual const Epetra_Import * RowMatrixImporter() const = 0;
};

#endif /* EPETRA_ROWMATRIX_H */