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SymBandEigenSolver.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: 1.1 $
00022 // $Date: 2001/11/19 22:44:00 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/system_of_eqn/eigenSOE/SymBandEigenSolver.h,v $
00024 
00025 // Written: MHS
00026 // Created: Oct 2001
00027 //
00028 // Description: This file contains the class definition for
00029 // SymBandEigenSolver, which computes the eigenvalues and eigenvectors
00030 // of a symmetric banded matrix using the LAPACK subroutine dsbevx.
00031 
00032 #ifndef SymBandEigenSolver_h
00033 #define SymBandEigenSolver_h
00034 
00035 #include <EigenSolver.h>
00036 #include <SymBandEigenSOE.h>
00037 
00038 class SymBandEigenSolver : public EigenSolver
00039 {
00040  public:
00041   SymBandEigenSolver();    
00042   virtual ~SymBandEigenSolver();
00043   
00044   virtual int solve(void) {return this->solve(theSOE->size);}
00045   virtual int solve(int nModes);
00046   virtual int setSize(void);
00047   virtual int setEigenSOE(SymBandEigenSOE &theSOE);
00048   
00049   virtual const Vector &getEigenvector(int mode);
00050   virtual double getEigenvalue(int mode);
00051   
00052   int sendSelf(int commitTag, Channel &theChannel);
00053   int recvSelf(int commitTag, Channel &theChannel, 
00054                FEM_ObjectBroker &theBroker);
00055   
00056  protected:
00057   
00058  private:
00059   SymBandEigenSOE *theSOE;
00060   int numModes;
00061 
00062   double *eigenvalue;
00063   double *eigenvector;
00064   Vector *eigenV;
00065   double *work;
00066 };
00067 
00068 #endif

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