DTK_PolynomialMatrix.hpp

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//---------------------------------------------------------------------------//
/*
  Copyright (c) 2012, Stuart R. Slattery
  All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are
  met:

  *: Redistributions of source code must retain the above copyright
  notice, this list of conditions and the following disclaimer.

  *: Redistributions in binary form must reproduce the above copyright
  notice, this list of conditions and the following disclaimer in the
  documentation and/or other materials provided with the distribution.

  *: Neither the name of the University of Wisconsin - Madison nor the
  names of its contributors may be used to endorse or promote products
  derived from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
//---------------------------------------------------------------------------//
//---------------------------------------------------------------------------//

#ifndef DTK_POLYNOMIALMATRIX_HPP
#define DTK_POLYNOMIALMATRIX_HPP

#include "DTK_Types.hpp"

#include <Teuchos_Comm.hpp>
#include <Teuchos_RCP.hpp>

#include <Tpetra_CrsMatrix.hpp>
#include <Tpetra_Map.hpp>
#include <Tpetra_MultiVector.hpp>
#include <Tpetra_Operator.hpp>

namespace DataTransferKit
{
//---------------------------------------------------------------------------//
//---------------------------------------------------------------------------//
class PolynomialMatrix : public Tpetra::Operator<double, int, SupportId>
{
  public:
    // Constructor.
    PolynomialMatrix(
        const Teuchos::RCP<const Tpetra::MultiVector<double, int, SupportId>>
            &polynomial,
        const Teuchos::RCP<const Tpetra::Map<int, SupportId>> &domain_map,
        const Teuchos::RCP<const Tpetra::Map<int, SupportId>> &range_map );

    Teuchos::RCP<const Tpetra::Map<int, SupportId>>
    getDomainMap() const override
    {
        return d_domain_map;
    }

    Teuchos::RCP<const Tpetra::Map<int, SupportId>> getRangeMap() const override
    {
        return d_range_map;
    }


    void
    apply( const Tpetra::MultiVector<double, int, SupportId> &X,
           Tpetra::MultiVector<double, int, SupportId> &Y,
           Teuchos::ETransp mode = Teuchos::NO_TRANS,
           double alpha = Teuchos::ScalarTraits<double>::one(),
           double beta = Teuchos::ScalarTraits<double>::zero() ) const override;

    bool hasTransposeApply() const override { return true; }

  private:
    // Parallel communicator.
    Teuchos::RCP<const Teuchos::Comm<int>> d_comm;

    // The polynomial.
    Teuchos::RCP<const Tpetra::MultiVector<double, int, SupportId>>
        d_polynomial;

    // Domain map.
    Teuchos::RCP<const Tpetra::Map<int, SupportId>> d_domain_map;

    // Range map.
    Teuchos::RCP<const Tpetra::Map<int, SupportId>> d_range_map;
};

//---------------------------------------------------------------------------//

} // end namespace DataTransferKit

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#endif // end DTK_POLYNOMIALMATRIX_HPP

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// end DTK_PolynomialMatrix.hpp
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