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PetscSpGenMatrix.h

/* OOQP                                                               *
 * Authors: E. Michael Gertz, Stephen J. Wright                       *
 * (C) 2001 University of Chicago. See Copyright Notification in OOQP */

#ifndef PETSCSPGENMATRIXBODY 
#define PETSCSPGENMATRIXBODY

#include "DoubleMatrix.h"
#include "PetscSpGenMatrixHandle.h"
#include "PetscSparseStorageHandle.h"

class DenseSymMatrix;

class PetscSpGenMatrix : public GenMatrix {
protected:
  PetscSparseStorageHandle mStorage;
public:
  PetscSparseStorage * getStorage() { return mStorage.ptr(); };
  PetscSparseStorage& storage() { return *mStorage; }
  PetscSpGenMatrix( int m, int n, int nnz );
  PetscSpGenMatrix( Mat M );

  virtual int isKindOf( int type );

  virtual void atPutDense( int row, int col, double * A, int lda,
                           int rowExtent, int colExtent );
  virtual void fromGetDense( int row, int col, double * A, int lda,
                             int rowExtent, int colExtent );
  virtual void fromGetSpRow( int row, int col,
                             double A[], int lenA, int jcolA[], int& nnz,
                             int colExtent, int& info );
  virtual void atPutSpRow( int row, double A[], int lenA, int jcolA[],
                           int& info );

  virtual void getSize( int& m, int& n );

  virtual void atPutSubmatrix( int destRow, int destCol, DoubleMatrix& M,
                               int srcRow, int srcCol,
                               int rowExtent, int colExtent );

  virtual void mult ( double beta,  OoqpVector& y,
                      double alpha, OoqpVector& x );

  virtual void transMult ( double beta,  OoqpVector& y,
                           double alpha, OoqpVector& x );

  virtual void getDiagonal( OoqpVector& vec );
  virtual void setToDiagonal( OoqpVector& vec );

  virtual void atPutDiagonal( int idiag, OoqpVector& v );
  virtual void fromGetDiagonal( int idiag, OoqpVector& v );

  virtual double abmaxnorm();

  virtual void writeToStream(ostream& out) const;

  virtual void randomize(double alpha, double beta, double * seed);

  virtual void putSparseTriple( int irow[], int len, int jcol[], double A[], 
                                int& info );

};

typedef SmartPointer<PetscSpGenMatrix> PetscSpGenMatrixHandle;

#endif

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