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SparseGenRowLinSOE.h

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00001 /* ****************************************************************** **
00002 **    OpenSees - Open System for Earthquake Engineering Simulation    **
00003 **          Pacific Earthquake Engineering Research Center            **
00004 **                                                                    **
00005 **                                                                    **
00006 ** (C) Copyright 1999, The Regents of the University of California    **
00007 ** All Rights Reserved.                                               **
00008 **                                                                    **
00009 ** Commercial use of this program without express permission of the   **
00010 ** University of California, Berkeley, is strictly prohibited.  See   **
00011 ** file 'COPYRIGHT'  in main directory for information on usage and   **
00012 ** redistribution,  and for a DISCLAIMER OF ALL WARRANTIES.           **
00013 **                                                                    **
00014 ** Developed by:                                                      **
00015 **   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
00016 **   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
00017 **   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
00018 **                                                                    **
00019 ** ****************************************************************** */
00020                                                                         
00021 // $Revision: 1.2 $
00022 // $Date: 2006/01/10 00:42:51 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/system_of_eqn/linearSOE/sparseGEN/SparseGenRowLinSOE.h,v $
00024                                                                         
00025 #ifndef SparseGenRowLinSOE_h
00026 #define SparseGenRowLinSOE_h
00027 
00028 // Written: fmk 
00029 // Created: 04/05
00030 // Revision: A
00031 //
00032 // Description: This file contains the class definition for SparseGenRowLinSOE
00033 // SparseGenRowLinSOE is a subclass of LinearSOE. It stores the matrix equation
00034 // Ax=b using the sparse row-compacted storage scheme for storing the 
00035 // matrix A. 
00036 //
00037 // What: "@(#) SparseGenRowLinSOE.h, revA"
00038 
00039 #include <LinearSOE.h>
00040 #include <Vector.h>
00041 
00042 class SparseGenRowLinSolver;
00043 
00044 class SparseGenRowLinSOE : public LinearSOE
00045 {
00046   public:
00047     SparseGenRowLinSOE(SparseGenRowLinSolver &theSolver);        
00048 
00049     ~SparseGenRowLinSOE();
00050 
00051     int getNumEqn(void) const;
00052     int setSize(Graph &theGraph);
00053     int addA(const Matrix &, const ID &, double fact = 1.0);
00054     int addB(const Vector &, const ID &, double fact = 1.0);    
00055     int setB(const Vector &, double fact = 1.0);        
00056     
00057     void zeroA(void);
00058     void zeroB(void);
00059     
00060     const Vector &getX(void);
00061     const Vector &getB(void);    
00062     double normRHS(void);
00063 
00064     void setX(int loc, double value);        
00065     void setX(const Vector &x);        
00066     int setSparseGenRowSolver(SparseGenRowLinSolver &newSolver);    
00067 
00068     int sendSelf(int commitTag, Channel &theChannel);
00069     int recvSelf(int commitTag, Channel &theChannel, FEM_ObjectBroker &theBroker);    
00070     friend class PetscSparseSeqSolver;    
00071 
00072   protected:
00073     
00074   private:
00075     int size;            // order of A
00076     int nnz;             // number of non-zeros in A
00077     double *A, *B, *X;   // 1d arrays containing coefficients of A, B and X
00078     int *colA, *rowStartA; // int arrays containing info about coeficientss in A
00079     Vector *vectX;
00080     Vector *vectB;    
00081     int Asize, Bsize;    // size of the 1d array holding A
00082     bool factored;
00083 };
00084 
00085 
00086 #endif
00087

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