Thyra_DefaultBlockedTriangularLinearOpWithSolve_decl.hpp

// @HEADER
// *****************************************************************************
//    Thyra: Interfaces and Support for Abstract Numerical Algorithms
//
// Copyright 2004 NTESS and the Thyra contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER
 
#ifndef THYRA_DEFAULT_BLOCKED_TRIANGULAR_LINEAR_OP_WITH_SOLVE_DECL_HPP
#define THYRA_DEFAULT_BLOCKED_TRIANGULAR_LINEAR_OP_WITH_SOLVE_DECL_HPP
 
 
#include "Thyra_PhysicallyBlockedLinearOpWithSolveBase.hpp"
#include "Thyra_PhysicallyBlockedLinearOpBase.hpp"
#include "Thyra_ProductVectorSpaceBase.hpp"
#include "Teuchos_ConstNonconstObjectContainer.hpp"
#include "Teuchos_Array.hpp"
 
 
namespace Thyra {
 
 
template<class Scalar>
class DefaultBlockedTriangularLinearOpWithSolve
  : virtual public PhysicallyBlockedLinearOpWithSolveBase<Scalar>
{
public:
 
 
  DefaultBlockedTriangularLinearOpWithSolve();
 
  void setNonconstBlocks( const RCP<PhysicallyBlockedLinearOpBase<Scalar> > &blocks );
 
  void setBlocks( const RCP<const PhysicallyBlockedLinearOpBase<Scalar> > &blocks );
 
  RCP<PhysicallyBlockedLinearOpBase<Scalar> > getNonconstBlocks();
 
  RCP<const PhysicallyBlockedLinearOpBase<Scalar> > getBlocks();
 
 
  
  bool acceptsLOWSBlock(const int i, const int j) const;
  void setNonconstLOWSBlock(
    const int i, const int j,
    const RCP<LinearOpWithSolveBase<Scalar> > &block
    );
  void setLOWSBlock(
    const int i, const int j,
    const RCP<const LinearOpWithSolveBase<Scalar> > &block
    );
 
 
 
  void beginBlockFill();
  void beginBlockFill(
    const int numRowBlocks, const int numColBlocks
    );
  void beginBlockFill(
    const RCP<const ProductVectorSpaceBase<Scalar> > &productRange,
    const RCP<const ProductVectorSpaceBase<Scalar> > &productDomain
    );
  bool blockFillIsActive() const;
  bool acceptsBlock(const int i, const int j) const;
  void setNonconstBlock(
    const int i, const int j,
    const RCP<LinearOpBase<Scalar> > &block
    );
  void setBlock(
    const int i, const int j,
    const RCP<const LinearOpBase<Scalar> > &block
    );
  void endBlockFill();
  void uninitialize();
 
 
 
  RCP<LinearOpWithSolveBase<Scalar> >
  getNonconstLOWSBlock(const int i, const int j); 
  RCP<const LinearOpWithSolveBase<Scalar> >
  getLOWSBlock(const int i, const int j) const; 
 
 
 
  RCP<const ProductVectorSpaceBase<Scalar> >
  productRange() const;
  RCP<const ProductVectorSpaceBase<Scalar> >
  productDomain() const;
  bool blockExists(const int i, const int j) const; 
  bool blockIsConst(const int i, const int j) const; 
  RCP<LinearOpBase<Scalar> >
  getNonconstBlock(const int i, const int j); 
  RCP<const LinearOpBase<Scalar> >
  getBlock(const int i, const int j) const; 
 
 
 
  RCP<const VectorSpaceBase<Scalar> > range() const;
  RCP<const VectorSpaceBase<Scalar> > domain() const;
  RCP<const LinearOpBase<Scalar> > clone() const;
 
 
                                                
  std::string description() const;
 
  void describe(
    Teuchos::FancyOStream &out,
    const Teuchos::EVerbosityLevel verbLevel
    ) const;
 
 
protected:
  
  bool opSupportedImpl(EOpTransp M_trans) const;
 void applyImpl(
   const EOpTransp M_trans,
   const MultiVectorBase<Scalar> &X,
   const Ptr<MultiVectorBase<Scalar> > &Y,
   const Scalar alpha,
   const Scalar beta
   ) const;
 
  bool solveSupportsImpl(EOpTransp M_trans) const;
  bool solveSupportsSolveMeasureTypeImpl(
    EOpTransp M_trans, const SolveMeasureType& solveMeasureType) const;
  SolveStatus<Scalar> solveImpl(
    const EOpTransp transp,
    const MultiVectorBase<Scalar> &B,
    const Ptr<MultiVectorBase<Scalar> > &X,
    const Ptr<const SolveCriteria<Scalar> > solveCriteria
    ) const;
 
private:
 
  // //////////////////////////
  // Private types
 
  typedef Teuchos::ConstNonconstObjectContainer<LinearOpWithSolveBase<Scalar> >
  CNCLOWS;
 
  typedef Teuchos::ConstNonconstObjectContainer<PhysicallyBlockedLinearOpBase<Scalar> >
  CNCPBLOB;
 
  // /////////////////////////
  // Private data members
  
  bool blockFillIsActive_;
 
  RCP<const ProductVectorSpaceBase<Scalar> > productRange_;
  RCP<const ProductVectorSpaceBase<Scalar> > productDomain_;
  int numDiagBlocks_;
  
  Array<CNCLOWS> diagonalBlocks_;
 
  // All blocks (including LOB form of diagonals)
  CNCPBLOB blocks_;
 
  // /////////////////////////
  // Private member functions
 
  void assertBlockFillIsActive(bool) const;
 
  void assertBlockRowCol(const int i, const int j) const;
 
  template<class LinearOpWithSolveType>
  void setLOWSBlockImpl( const int i, const int j,
    const RCP<LinearOpWithSolveType> &block );
 
  void assertAndSetBlockStructure(const PhysicallyBlockedLinearOpBase<Scalar>& blocks);
  
  // Not defined and not to be called
 
  DefaultBlockedTriangularLinearOpWithSolve(
    const DefaultBlockedTriangularLinearOpWithSolve&);
 
  DefaultBlockedTriangularLinearOpWithSolve&
  operator=(const DefaultBlockedTriangularLinearOpWithSolve&);
  
};
 
 
template<class Scalar>
RCP<DefaultBlockedTriangularLinearOpWithSolve<Scalar> >
defaultBlockedTriangularLinearOpWithSolve()
{
  return Teuchos::rcp(new DefaultBlockedTriangularLinearOpWithSolve<Scalar>);
}
 
 
} // namespace Thyra
 
 
#endif  // THYRA_DEFAULT_BLOCKED_TRIANGULAR_LINEAR_OP_WITH_SOLVE_DECL_HPP