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// Thyra: Interfaces and Support for Abstract Numerical Algorithms
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#ifndef THYRA_TPETRA_EUCLIDEAN_SCALAR_PROD_DECL_HPP
#define THYRA_TPETRA_EUCLIDEAN_SCALAR_PROD_DECL_HPP
#include "Thyra_EuclideanScalarProd.hpp"
#include "Tpetra_MultiVector.hpp"
namespace Thyra {
/** \brief Extends concrete implementation of a Euclidean scalar product for
* specifically Tpetra vectors/multivectors.
*
* \ingroup Tpetra_Thyra_Op_Vec_adapters_grp
*/
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
class TpetraEuclideanScalarProd : public EuclideanScalarProd<Scalar> {
protected:
/** @name Overridden from EuclideanScalarProd */
//@{
/** \brief If X and Y are both Tpetra wrappers, computes the pair-wise
* scalar products directly with Tpetra calls. Otherwise, this defers to
* the base class implementaiton, which computes the result with an RTOp.
*/
virtual void scalarProdsImpl(
const MultiVectorBase<Scalar>& X,
const MultiVectorBase<Scalar>& Y,
const ArrayView<Scalar>& scalarProds
) const;
//@}
private:
/** /brief . */
Teuchos::RCP<const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> >
getConstTpetraMultiVector(const RCP<const MultiVectorBase<Scalar> >& mv) const;
};
/** \brief Nonmember constructor for TpetraEuclideanScalarProd.
*
* \relates TpetraEuclideanScalarProd
*/
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
inline
RCP<const TpetraEuclideanScalarProd<Scalar,LocalOrdinal,GlobalOrdinal,Node> >
tpetraEuclideanScalarProd()
{
return Teuchos::rcp(new TpetraEuclideanScalarProd<Scalar,LocalOrdinal,GlobalOrdinal,Node>);
}
} // end namespace Thyra
#endif // THYRA_TPETRA_EUCLIDEAN_SCALAR_PROD_DECL_HPP
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