Poisson2dOperator.h

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#ifndef _POISSON2DOPERATOR_H_
#define _POISSON2DOPERATOR_H_
 
class Epetra_MultiVector;
class Epetra_CrsMatrix;
class Epetra_Map;
class Epetra_Import;
class Epetra_BlockMap;
class Epetra_Comm;
#include "Epetra_Operator.h"
 
 
class Poisson2dOperator: public virtual Epetra_Operator {
 
 public:
 
 
  Poisson2dOperator(int nx, int ny, const Epetra_Comm & comm);
  ~Poisson2dOperator();
 
 
  int SetUseTranspose(bool useTranspose){useTranspose_ = useTranspose; return(0);};
 
 
 
  int Apply(const Epetra_MultiVector& X, Epetra_MultiVector& Y) const;
 
 
  int ApplyInverse(const Epetra_MultiVector& X, Epetra_MultiVector& Y) const {return(Apply(X,Y));};
 
  /* Returns the quantity \f$ \| A \|_\infty\f$ such that
     \f[\| A \|_\infty = \max_{1\lei\lem} \sum_{j=1}^n |a_{ij}| \f].
 
     \warning This method must not be called unless HasNormInf() returns true.
  */
  double NormInf() const {return(8.0);};
 
 
  const char * Label() const{return(Label_);};
 
  bool UseTranspose() const {return(useTranspose_);};
 
  bool HasNormInf() const{return(true);};
 
  const Epetra_Comm & Comm() const{return(comm_);};
 
  const Epetra_Map & OperatorDomainMap() const {return(*map_);};
 
  const Epetra_Map & OperatorRangeMap() const {return(*map_);};
 
 
  Epetra_CrsMatrix * GeneratePrecMatrix() const;
 
 
  int nx_, ny_, myny_;
  bool useTranspose_;
  const Epetra_Comm & comm_;
  Epetra_Map * map_;
  int numImports_;
  int * importIDs_;
  Epetra_Map * importMap_;
  Epetra_Import * importer_;
  mutable Epetra_MultiVector * importX_;
  const char * Label_;
};
 
#endif /* _POISSON2DOPERATOR_H_ */