Thyra_DefaultColumnwiseMultiVector_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_COLUMNWISE_MULTI_VECTOR_DECL_HPP
#define THYRA_DEFAULT_COLUMNWISE_MULTI_VECTOR_DECL_HPP

#include "Thyra_MultiVectorDefaultBase_decl.hpp"
#include "Thyra_VectorSpaceBase_decl.hpp"
#include "Thyra_VectorBase.hpp"


namespace Thyra {


template<class Scalar>
class DefaultColumnwiseMultiVector : virtual public MultiVectorDefaultBase<Scalar>
{
public:


  DefaultColumnwiseMultiVector();

  DefaultColumnwiseMultiVector(
    const RCP<VectorBase<Scalar> > &col_vec
    );

  DefaultColumnwiseMultiVector(
    const RCP<const VectorSpaceBase<Scalar> > &range,
    const RCP<const VectorSpaceBase<Scalar> > &domain,
    const ArrayView<const RCP<VectorBase<Scalar> > > &col_vecs = Teuchos::null
    );
  
  void initialize(
    const RCP<VectorBase<Scalar> > &col_vec
    );

  void initialize(
    const RCP<const VectorSpaceBase<Scalar> > &range,
    const RCP<const VectorSpaceBase<Scalar> > &domain,
    const ArrayView<const RCP<VectorBase<Scalar> > > &col_vecs = Teuchos::null
    );

  void uninitialize();


  RCP<const VectorSpaceBase<Scalar> > range() const;
  RCP<const VectorSpaceBase<Scalar> > domain() const;

  RCP<VectorBase<Scalar> > nonconstColImpl(Ordinal j);
  RCP<MultiVectorBase<Scalar> >
  nonconstContigSubViewImpl( const Range1D& col_rng );

protected:


  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;



  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;


private:
  
  RCP<const VectorSpaceBase<Scalar> > range_;
  RCP<const VectorSpaceBase<Scalar> > domain_;
  Array<RCP<VectorBase<Scalar> > > col_vecs_;
  
};


} // end namespace Thyra


#endif // THYRA_DEFAULT_COLUMNWISE_MULTI_VECTOR_DECL_HPP