EpetraExt_PETScAIJMatrix.h

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/*#############################################################################
# CVS File Information
#    Current revision: $Revision$
#    Last modified:    $Date$
#    Modified by:      $Author$
#############################################################################*/
 
#ifndef _EPETRAEXT_PETSCAIJMATRIX_H_
#define _EPETRAEXT_PETSCAIJMATRIX_H_
 
#include "Epetra_Object.h"
#include "Epetra_CompObject.h"
#include "Epetra_RowMatrix.h"
#include "Epetra_Map.h"
#ifdef HAVE_MPI
#include "Epetra_MpiComm.h"
#else
#include "Epetra_SerialComm.h"
#endif
//Petsc headers.
//Note: Petsc internally hard-codes paths to headers, relative to the PETSC home
//      directory.  This means that --with-incdirs must contain the full path(s)
//      to the header below plus the PETSc home directory.
#include "src/mat/impls/aij/mpi/mpiaij.h"
 
class Epetra_Import;
class Epetra_Export;
class Epetra_Vector;
class Epetra_MultiVector;
 
 
class Epetra_PETScAIJMatrix: public Epetra_Object, public Epetra_CompObject, public virtual Epetra_RowMatrix  {
      
 public:
 
 
 
  Epetra_PETScAIJMatrix(Mat Amat);
 
  virtual ~Epetra_PETScAIJMatrix();
  
 
 
 
    int ExtractMyRowCopy(int MyRow, int Length, int & NumEntries, double *Values, int * Indices) const;
 
 
    int ExtractDiagonalCopy(Epetra_Vector & Diagonal) const;
 
 
 
 
    int Multiply(bool TransA, const Epetra_MultiVector& X, Epetra_MultiVector& Y) const;
 
 
    int Solve(bool Upper, bool Trans, bool UnitDiagonal, const Epetra_MultiVector& X, Epetra_MultiVector& Y) const;
 
 
    int InvRowSums(Epetra_Vector& x) const;
 
 
    int LeftScale(const Epetra_Vector& x);
 
 
    int InvColSums(Epetra_Vector& x) const;
 
 
    int RightScale(const Epetra_Vector& x);
 
 
 
 
    bool Filled() const {return(true);};
 
    bool LowerTriangular() const {return(false);};
 
    bool UpperTriangular() const {return(false);};
 
  
 
 
    Mat Amat() const {return(Amat_);};
 
    /* Returns the quantity \f$ \| A \|_\infty\f$ such that
       \f[\| A \|_\infty = \max_{1\lei\lem} \sum_{j=1}^n |a_{ij}| \f].
    */ 
    double NormInf() const;
 
    /* Returns the quantity \f$ \| A \|_1\f$ such that
       \f[\| A \|_1= \max_{1\lej\len} \sum_{i=1}^m |a_{ij}| \f].
    */ 
    double NormOne() const;
 
#ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
    int NumGlobalNonzeros() const {return(NumGlobalNonzeros_);};
 
    int NumGlobalRows() const {return(OperatorRangeMap().NumGlobalPoints());};
 
    int NumGlobalCols() const {return(OperatorDomainMap().NumGlobalPoints());};
 
    int NumGlobalDiagonals() const{return(OperatorDomainMap().NumGlobalPoints());};
#endif
    long long NumGlobalNonzeros64() const {return(NumGlobalNonzeros_);};
 
    long long NumGlobalRows64() const {return(OperatorRangeMap().NumGlobalPoints64());};
 
    long long NumGlobalCols64() const {return(OperatorDomainMap().NumGlobalPoints64());};
 
    long long NumGlobalDiagonals64() const{return(OperatorDomainMap().NumGlobalPoints64());};
    
    int NumMyNonzeros() const {return(NumMyNonzeros_);};
 
    int NumMyRows() const {return(OperatorRangeMap().NumMyPoints());};
 
    int NumMyCols() const {return(RowMatrixColMap().NumMyPoints());};
 
    int NumMyDiagonals() const {return(OperatorRangeMap().NumMyPoints());};
 
    const Epetra_Map & OperatorDomainMap() const {return(*DomainMap_);};
 
    const Epetra_Map & OperatorRangeMap() const  {return(*DomainMap_);};
 
    const Epetra_BlockMap& Map() const {return(RowMatrixRowMap());}
 
    const Epetra_Map & RowMatrixRowMap() const {return(OperatorRangeMap());};
 
    const Epetra_Map & RowMatrixColMap() const {return(*ColMap_);};
 
    virtual const Epetra_Import * RowMatrixImporter() const {return(Importer_);};
 
    const Epetra_Comm & Comm() const {return(*Comm_);};
  
  
 
 
  virtual void Print(std::ostream & os) const;
 
 
 
    const char * Label() const {return(Epetra_Object::Label());};
    
 
  int SetUseTranspose(bool UseTranspose)
    {(void)UseTranspose; return(-1);}
 
 
  int Apply(const Epetra_MultiVector& X, Epetra_MultiVector& Y) const {
    return(Epetra_PETScAIJMatrix::Multiply(Epetra_PETScAIJMatrix::UseTranspose(), X, Y));};
 
 
  int ApplyInverse(const Epetra_MultiVector& X,
                   Epetra_MultiVector& Y) const
    {(void)X; (void)Y; return(-1);}
 
    virtual bool HasNormInf() const {return(true);}
 
    virtual bool UseTranspose() const {return(false);}
 
 
 
 
    int NumMyRowEntries(int MyRow, int & NumEntries) const;
 
    int MaxNumEntries() const;
 
 private:
 
    int GetRow(int Row) const;
    Mat Amat_;                //general PETSc matrix type
    mutable double * Values_;
    mutable int * Indices_;
    mutable int MaxNumEntries_;
    
#ifdef HAVE_MPI
    Epetra_MpiComm * Comm_;
#else
    Epetra_SerialComm * Comm_;
#endif  
    Epetra_Map * DomainMap_;
    Epetra_Map * ColMap_;
    Epetra_Import * Importer_;
    mutable Epetra_MultiVector * ImportVector_;
 
    double NumGlobalNonzeros_;
    int NumMyNonzeros_;
    int NumMyRows_;
    int NumGlobalRows_;
    int NumMyCols_;
    int PetscRowStart_;
    int PetscRowEnd_;
    enum petscMatrixType {PETSC_SEQ_AIJ, PETSC_MPI_AIJ};
    MatType  MatType_;         //really const char*
    mutable double NormInf_;
    mutable double NormOne_;
 
    
  //FIXME we need a copy ctor
  //Epetra_PETScAIJMatrix(const Epetra_PETScAIJMatrix & Matrix) {(void)Matrix;}
};
#endif /* _EPETRAEXT_PETSCAIJMATRIX_H_ */