Stokhos_BlockDiagonalOperator.hpp

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// @HEADER
// *****************************************************************************
//                           Stokhos Package
//
// Copyright 2009 NTESS and the Stokhos contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef STOKHOS_BLOCK_DIAGONAL_OPERATOR_HPP
#define STOKHOS_BLOCK_DIAGONAL_OPERATOR_HPP

#include "Teuchos_RCP.hpp"
#include "Epetra_Operator.h"
#include "EpetraExt_MultiComm.h"
#include "Stokhos_ProductEpetraOperator.hpp"

namespace Stokhos {
    
  class BlockDiagonalOperator : public Epetra_Operator {
      
  public:

    BlockDiagonalOperator(
      const Teuchos::RCP<const EpetraExt::MultiComm>& mp_comm,
      int num_mp_blocks,
      const Teuchos::RCP<const Epetra_Map>& domain_base_map,
      const Teuchos::RCP<const Epetra_Map>& range_base_map,
      const Teuchos::RCP<const Epetra_Map>& domain_mp_map,
      const Teuchos::RCP<const Epetra_Map>& range_mp_map);
    
    virtual ~BlockDiagonalOperator();


    virtual void setupOperator(
      const Teuchos::RCP<Stokhos::ProductEpetraOperator >& ops);

    virtual Teuchos::RCP< Stokhos::ProductEpetraOperator > 
    getMPOps();

    virtual Teuchos::RCP<const Stokhos::ProductEpetraOperator > 
    getMPOps() const;


    
    virtual int SetUseTranspose(bool UseTranspose);
    
    virtual int Apply(const Epetra_MultiVector& Input, 
                      Epetra_MultiVector& Result) const;

    virtual int ApplyInverse(const Epetra_MultiVector& X, 
                             Epetra_MultiVector& Y) const;
    
    virtual double NormInf() const;
    
    virtual const char* Label () const;
  
    virtual bool UseTranspose() const;
    
    virtual bool HasNormInf() const;

    virtual const Epetra_Comm & Comm() const;

    virtual const Epetra_Map& OperatorDomainMap () const;

    virtual const Epetra_Map& OperatorRangeMap () const;


  private:
    
    BlockDiagonalOperator(const BlockDiagonalOperator&);
    
    BlockDiagonalOperator& operator=(const BlockDiagonalOperator&);
    
  protected:
    
    std::string label;
    
    Teuchos::RCP<const EpetraExt::MultiComm> mp_comm;

    int num_mp_blocks;
    
    Teuchos::RCP<const Epetra_Map> domain_base_map;

    Teuchos::RCP<const Epetra_Map> range_base_map;

    Teuchos::RCP<const Epetra_Map> domain_mp_map;

    Teuchos::RCP<const Epetra_Map> range_mp_map;

    Teuchos::RCP<Stokhos::ProductEpetraOperator > block_ops;

    bool useTranspose;

  }; // class BlockDiagonalOperator
  
} // namespace Stokhos

#endif // STOKHOS_BLOCK_DIAGIONAL_OPERATOR_HPP