DiagonalSOE.h

// -*-c++-*-
//----------------------------------------------------------------------------
//  XC program; finite element analysis code
//  for structural analysis and design.
//
//  Copyright (C)  Luis C. Pérez Tato
//
//  This program derives from OpenSees <http://opensees.berkeley.edu>
//  developed by the  «Pacific earthquake engineering research center».
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//  Except for the restrictions that may arise from the copyright
//  of the original program (see copyright_opensees.txt)
//  XC is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
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//  (at your option) any later version.
//
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//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details. 
//
//
// You should have received a copy of the GNU General Public License 
// along with this program.
// If not, see <http://www.gnu.org/licenses/>.
//----------------------------------------------------------------------------
/* ****************************************************************** **
**    OpenSees - Open System for Earthquake Engineering Simulation    **
**          Pacific Earthquake Engineering Research Center            **
**                                                                    **
**                                                                    **
** (C) Copyright 1999, The Regents of the University of California    **
** All Rights Reserved.                                               **
**                                                                    **
** Commercial use of this program without express permission of the   **
** University of California, Berkeley, is strictly prohibited.  See   **
** file 'COPYRIGHT'  in main directory for information on usage and   **
** redistribution,  and for a DISCLAIMER OF ALL WARRANTIES.           **
**                                                                    **
** Developed by:                                                      **
**   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
**   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
**   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
**                                                                    **
** ****************************************************************** */
                                                                        
// $Revision: 1.1 $
// $Date: 2005/01/27 22:22:50 $
// $Source: /usr/local/cvs/OpenSees/SRC/system_of_eqn/linearSOE/diagonal/DiagonalSOE.h,v $
                                                                        
// Written: fmk 
// Created: Jan 2005
// Revision: A
//
// Description: This file contains the class definition for DiagonalSOE
// DiagonalSOE is a subclass of LinearSOE. It stores a diagonal system
// of equation, i.e. just the diagonal

// What: "@(#) DiagonalSOE.h, revA"

#ifndef DiagonalSOE_h
#define DiagonalSOE_h

#include <solution/system_of_eqn/linearSOE/FactoredSOEBase.h>
#include "utility/matrix/Vector.h"

namespace XC {
class DiagonalSolver;

//
class DiagonalSOE: public FactoredSOEBase
  {
  private:
    Vector A;
  protected:
    virtual bool setSolver(LinearSOESolver *);

    friend class SolutionStrategy;
    DiagonalSOE(SolutionStrategy *);
    DiagonalSOE(SolutionStrategy *,int N);
    SystemOfEqn *getCopy(void) const;
  public:
    int setSize(Graph &theGraph);
    int addA(const Matrix &, const ID &, double fact = 1.0);
    
    void zeroA(void);

    int sendSelf(Communicator &);
    int recvSelf(const Communicator &);

    friend class DiagonalSolver;    
    friend class DiagonalDirectSolver;
  };
inline SystemOfEqn *DiagonalSOE::getCopy(void) const
  { return new DiagonalSOE(*this); }
} // end of XC namespace


#endif