Thyra_DefaultMultiVectorProductVector_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_MULTI_VECTOR_PRODUCT_VECTOR_DECL_HPP
#define THYRA_MULTI_VECTOR_PRODUCT_VECTOR_DECL_HPP


#include "Thyra_ProductVectorBase.hpp" // Interface
#include "Thyra_VectorDefaultBase.hpp" // Implementation
#include "Thyra_DefaultProductVector.hpp"
#include "Teuchos_ConstNonconstObjectContainer.hpp"


namespace Thyra {


template<class Scalar> class DefaultMultiVectorProductVectorSpace;


template<class Scalar>
class DefaultMultiVectorProductVector
  : virtual public ProductVectorBase<Scalar>,
    virtual protected VectorDefaultBase<Scalar>
{
public:


  DefaultMultiVectorProductVector();

  void initialize(
    const RCP<const DefaultMultiVectorProductVectorSpace<Scalar> > &productSpace,
    const RCP<MultiVectorBase<Scalar> > &multiVec
    );

  void initialize(
    const RCP<const DefaultMultiVectorProductVectorSpace<Scalar> > &productSpace,
    const RCP<const MultiVectorBase<Scalar> > &multiVec
    );

  // ToDo: Add const version of above function also when needed!

  RCP<MultiVectorBase<Scalar> >
  getNonconstMultiVector();

  RCP<const MultiVectorBase<Scalar> >
  getMultiVector() const;

  void uninitialize();


                                                
  std::string description() const;

  void describe(
    Teuchos::FancyOStream &out,
    const Teuchos::EVerbosityLevel verbLevel
    ) const;



  RCP<VectorBase<Scalar> >
  getNonconstVectorBlock(const int k); 
  RCP<const VectorBase<Scalar> >
  getVectorBlock(const int k) const;



  RCP<const ProductVectorSpaceBase<Scalar> >
  productSpace() const;
  bool blockIsConst(const int k) const; 
  RCP<MultiVectorBase<Scalar> >
  getNonconstMultiVectorBlock(const int k);
  RCP<const MultiVectorBase<Scalar> >
  getMultiVectorBlock(const int k) const;



  RCP< const VectorSpaceBase<Scalar> > space() const;


protected:


  virtual void randomizeImpl(Scalar l, Scalar u);
  virtual void absImpl(const VectorBase<Scalar>& x);
  virtual void reciprocalImpl(const VectorBase<Scalar>& x);
  virtual void eleWiseScaleImpl(const VectorBase<Scalar>& x);
  virtual typename Teuchos::ScalarTraits<Scalar>::magnitudeType
  norm2WeightedImpl(const VectorBase<Scalar>& x) const;
  void applyOpImpl(
    const RTOpPack::RTOpT<Scalar> &op,
    const ArrayView<const Ptr<const VectorBase<Scalar> > > &vecs,
    const ArrayView<const Ptr<VectorBase<Scalar> > > &targ_vecs,
    const Ptr<RTOpPack::ReductTarget> &reduct_obj,
    const Ordinal global_offset
    ) const;
  void acquireDetachedVectorViewImpl(
    const Range1D& rng, RTOpPack::ConstSubVectorView<Scalar>* sub_vec
    ) const;
  void releaseDetachedVectorViewImpl(
    RTOpPack::ConstSubVectorView<Scalar>* sub_vec
    ) const;
  void acquireNonconstDetachedVectorViewImpl(
    const Range1D& rng, RTOpPack::SubVectorView<Scalar>* sub_vec
    );
  void commitNonconstDetachedVectorViewImpl(
    RTOpPack::SubVectorView<Scalar>* sub_vec
    );
  void setSubVectorImpl(
    const RTOpPack::SparseSubVectorT<Scalar>& sub_vec
    );



  virtual void assignImpl(Scalar alpha);
  virtual void assignMultiVecImpl(const MultiVectorBase<Scalar>& mv);
  virtual void scaleImpl(Scalar alpha);
  virtual void updateImpl(
    Scalar alpha,
    const MultiVectorBase<Scalar>& mv
    );
  virtual void linearCombinationImpl(
    const ArrayView<const Scalar>& alpha,
    const ArrayView<const Ptr<const MultiVectorBase<Scalar> > >& mv,
    const Scalar& beta
    );
  virtual void dotsImpl(
    const MultiVectorBase<Scalar>& mv,
    const ArrayView<Scalar>& prods
    ) const;
  virtual void norms1Impl(
    const ArrayView<typename ScalarTraits<Scalar>::magnitudeType>& norms
    ) const;
  virtual void norms2Impl(
    const ArrayView<typename ScalarTraits<Scalar>::magnitudeType>& norms
    ) const;
  virtual void normsInfImpl(
    const ArrayView<typename ScalarTraits<Scalar>::magnitudeType>& norms
    ) const;


private:

  // //////////////////////////////
  // Private types

  typedef Teuchos::ConstNonconstObjectContainer<MultiVectorBase<Scalar> > CNMVC;

  // //////////////////////////////
  // Private data members

  int numBlocks_;
  RCP<const DefaultMultiVectorProductVectorSpace<Scalar> > productSpace_;
  CNMVC multiVec_;

  // //////////////////////////////
  // Private member functions

  RCP<const DefaultProductVector<Scalar> >
  getDefaultProductVector() const;

};


template<class Scalar>
inline
RCP<DefaultMultiVectorProductVector<Scalar> >
multiVectorProductVector(
  const RCP<const DefaultMultiVectorProductVectorSpace<Scalar> > &productSpace,
  const RCP<MultiVectorBase<Scalar> > &multiVec
  )
{
  RCP<DefaultMultiVectorProductVector<Scalar> > multiVecProdVec
    = Teuchos::rcp(new DefaultMultiVectorProductVector<Scalar>());
  multiVecProdVec->initialize(productSpace,multiVec);
  return multiVecProdVec;
}


template<class Scalar>
inline
RCP<const DefaultMultiVectorProductVector<Scalar> >
multiVectorProductVector(
  const RCP<const DefaultMultiVectorProductVectorSpace<Scalar> > &productSpace,
  const RCP<const MultiVectorBase<Scalar> > &multiVec
  )
{
  RCP<DefaultMultiVectorProductVector<Scalar> > multiVecProdVec
    = Teuchos::rcp(new DefaultMultiVectorProductVector<Scalar>());
  multiVecProdVec->initialize(productSpace,multiVec);
  return multiVecProdVec;
}


// ToDo: Add non-const and const versions of the nonmember constructor
// functions to wrap already created multi-vectors once needed!


template<class Scalar>
inline
RCP<DefaultMultiVectorProductVector<Scalar> >
multiVectorProductVector(
  const RCP<const DefaultMultiVectorProductVectorSpace<Scalar> > &productSpace
  )
{
#ifdef TEUCHOS_DEBUG
  TEUCHOS_TEST_FOR_EXCEPT(is_null(productSpace));
#endif
  return multiVectorProductVector(
    productSpace,
    createMembers(productSpace->getBlock(0),productSpace->numBlocks())
    );
}


} // namespace Thyra


#endif // THYRA_MULTI_VECTOR_PRODUCT_VECTOR_DECL_HPP