EpetraExt_PointToBlockDiagPermute.h

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#ifndef EPETRAEXT_POINTTOBLOCKDIAGPERMUTE_H
#define EPETRAEXT_POINTTOBLOCKDIAGPERMUTE_H
 
#if defined(EpetraExt_SHOW_DEPRECATED_WARNINGS)
#ifdef __GNUC__
#warning "The EpetraExt package is deprecated"
#endif
#endif
 
#include "Epetra_ConfigDefs.h"
#include "Epetra_DistObject.h"
#include "Epetra_BlockMap.h"
#include "Epetra_BlockMap.h"
#include "Epetra_Map.h"
#include "Epetra_Operator.h"
#include "Epetra_CrsMatrix.h"
#include "Epetra_FECrsMatrix.h"
#include "Teuchos_ParameterList.hpp"
 
class Epetra_Comm;
class Epetra_Import;
class Epetra_Export;
class EpetraExt_BlockDiagMatrix;
 
 
// NTS: Map() == RowMap is the convention
 
//=========================================================================
class EpetraExt_PointToBlockDiagPermute : public virtual Epetra_Operator, public Epetra_DistObject {
public:
 
 
 
  EpetraExt_PointToBlockDiagPermute(const Epetra_CrsMatrix& MAT);
 
 
 
  virtual ~EpetraExt_PointToBlockDiagPermute();
 
 
 
 
  virtual int SetParameters(Teuchos::ParameterList & List);
 
  virtual int SetUseTranspose (bool /* useTranspose */) {return -1;}
 
  virtual int Compute();
 
 
 
 
 
  virtual int Apply(const Epetra_MultiVector& X, Epetra_MultiVector& Y) const;
 
 
  virtual int ApplyInverse(const Epetra_MultiVector& X, Epetra_MultiVector& Y) const;
 
  virtual double NormInf() const {return -1;}
 
 
 
  virtual const char * Label() const{return "Fix Me";}
 
  virtual bool UseTranspose() const {return false;}
 
  virtual bool HasNormInf() const {return false;}
 
  virtual const Epetra_Comm & Comm() const {return Map().Comm();}
 
  virtual const Epetra_Map & OperatorDomainMap() const {return Matrix_->OperatorDomainMap();}
 
  virtual const Epetra_Map & OperatorRangeMap() const {return Matrix_->OperatorRangeMap();}
 
  virtual const EpetraExt_BlockDiagMatrix & BlockMatrix(){return *BDMat_;}
 
  virtual Epetra_FECrsMatrix * CreateFECrsMatrix();
 
 
 
  virtual void Print(std::ostream& os) const;
 
 
 
 
  int Import(const Epetra_SrcDistObject& A, const Epetra_Import& Importer, Epetra_CombineMode CombineMode, const Epetra_OffsetIndex * Indexor = 0);
 
 
  int Import(const Epetra_SrcDistObject& A, const Epetra_Export& Exporter, Epetra_CombineMode CombineMode, const Epetra_OffsetIndex * Indexor = 0);
 
 
  int Export(const Epetra_SrcDistObject& A, const Epetra_Import & Importer, Epetra_CombineMode CombineMode, const Epetra_OffsetIndex * Indexor = 0);
 
 
  int Export(const Epetra_SrcDistObject& A, const Epetra_Export& Exporter, Epetra_CombineMode CombineMode, const Epetra_OffsetIndex * Indexor = 0);
 
 protected:
 
 
 
 
  virtual int CheckSizes(const Epetra_SrcDistObject& Source);
  virtual int CopyAndPermute(const Epetra_SrcDistObject& Source,
                             int NumSameIDs,
                             int NumPermuteIDs,
                             int * PermuteToLIDs,
                             int * PermuteFromLIDs,
                             const Epetra_OffsetIndex * Indexor,
                             Epetra_CombineMode CombineMode = Zero);
 
  virtual int PackAndPrepare(const Epetra_SrcDistObject& Source,
                             int NumExportIDs,
                             int* ExportLIDs,
                             int& LenExports,
                             char*& Exports,
                             int& SizeOfPacket,
                             int* Sizes,
                             bool & VarSizes,
                             Epetra_Distributor& Distor);
 
  virtual int UnpackAndCombine(const Epetra_SrcDistObject& Source,
                               int NumImportIDs,
                               int* ImportLIDs,
                               int LenImports,
                               char* Imports,
                               int& SizeOfPacket,
                               Epetra_Distributor& Distor,
                               Epetra_CombineMode CombineMode,
                               const Epetra_OffsetIndex * Indexor);
 
 
private:
  int ExtractBlockDiagonal();
 
  int SetupContiguousMode();
  int CleanupContiguousMode();
 
  // Copied from Epetra_CrsMatrix
  void UpdateImportVector(int NumVectors) const;
  void UpdateExportVector(int NumVectors) const;
 
  Teuchos::ParameterList List_;
  const Epetra_CrsMatrix* Matrix_;
  bool PurelyLocalMode_;
 
  // For contiguous blocking only
  bool ContiguousBlockMode_;
  int ContiguousBlockSize_;
 
  int NumBlocks_;
  int *Blockstart_;
  int *Blockids_int_;
#ifndef EPETRA_NO_64BIT_GLOBAL_INDICES
  long long *Blockids_LL_;
#endif
  Epetra_BlockMap *BDMap_;
  Epetra_Map *CompatibleMap_; //A map compatible with BD's block map - used for imports
  EpetraExt_BlockDiagMatrix* BDMat_;
  Epetra_Import *Importer_;
  Epetra_Export *Exporter_;
  mutable Epetra_MultiVector *ImportVector_;
  mutable Epetra_MultiVector *ExportVector_;
 
  template<typename int_type>
  Epetra_FECrsMatrix * TCreateFECrsMatrix();
 
  template<typename int_type>
  int TSetupContiguousMode();
 
  template<typename int_type>
  int TExtractBlockDiagonal();
 
  template<typename int_type>
  int TSetParameters(Teuchos::ParameterList & List);
 
  template<typename int_type>
  const int_type* Blockids_const_ptr() const;
 
  template<typename int_type>
  int_type*& Blockids_ref();
 
};  /* EPETRAEXT_POINTTOBLOCKDIAGPERMUTE_H */
 
template<> inline const int* EpetraExt_PointToBlockDiagPermute::Blockids_const_ptr<int>() const { return Blockids_int_; }
 
template<> inline int*& EpetraExt_PointToBlockDiagPermute::Blockids_ref<int>() { return Blockids_int_; }
 
#ifndef EPETRA_NO_64BIT_GLOBAL_INDICES
template<> inline const long long* EpetraExt_PointToBlockDiagPermute::Blockids_const_ptr<long long>() const { return Blockids_LL_; }
template<> inline long long*& EpetraExt_PointToBlockDiagPermute::Blockids_ref<long long>() { return Blockids_LL_; }
#endif
 
#endif