MueLu_RegionRFactory_kokkos_decl.hpp

Go to the documentation of this file.

// @HEADER
//
// ***********************************************************************
//
//        MueLu: A package for multigrid based preconditioning
//                  Copyright 2012 Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. 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.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "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 SANDIA CORPORATION OR THE
// 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, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact
//                    Jonathan Hu       (jhu@sandia.gov)
//                    Andrey Prokopenko (aprokop@sandia.gov)
//                    Ray Tuminaro      (rstumin@sandia.gov)
//
// ***********************************************************************
//
// @HEADER

#ifndef MUELU_REGIONRFACTORY_KOKKOS_DECL_HPP
#define MUELU_REGIONRFACTORY_KOKKOS_DECL_HPP

#include "MueLu_ConfigDefs.hpp"
#include "MueLu_Types.hpp"

#include <Tpetra_KokkosCompat_ClassicNodeAPI_Wrapper.hpp>
#include <Kokkos_Core.hpp>

#include "MueLu_TwoLevelFactoryBase.hpp"
#include "MueLu_RegionRFactory_kokkos_fwd.hpp"

namespace MueLu {

template <class Scalar        = DefaultScalar,
          class LocalOrdinal  = DefaultLocalOrdinal,
          class GlobalOrdinal = DefaultGlobalOrdinal,
          class Node          = DefaultNode>
class RegionRFactory_kokkos : public TwoLevelFactoryBase {
#undef MUELU_REGIONRFACTORY_KOKKOS_SHORT
#include "MueLu_UseShortNames.hpp"

 public:
  using real_type                  = typename Teuchos::ScalarTraits<SC>::coordinateType;
  using realvaluedmultivector_type = typename Xpetra::MultiVector<real_type, LO, GO, NO>;
  using execution_space            = typename Node::execution_space;
  using memory_space               = typename Node::memory_space;
  using device_type                = Kokkos::Device<execution_space, memory_space>;
  using intTupleView               = typename Kokkos::View<int[3], device_type>;
  using LOTupleView                = typename Kokkos::View<LO[3], device_type>;



  RegionRFactory_kokkos() = default;

  virtual ~RegionRFactory_kokkos() = default;


  RCP<const ParameterList> GetValidParameterList() const;

  void DeclareInput(Level& fineLevel, Level& coarseLevel) const;




  void Build(Level& fineLevel, Level& coarseLevel) const;

  void Build3D(const int numDimensions,
               Array<LO>& lFineNodesPerDim,
               const RCP<Matrix>& A,
               const RCP<realvaluedmultivector_type>& fineCoordinates,
               RCP<Matrix>& R,
               RCP<realvaluedmultivector_type>& coarseCoordinates,
               Array<LO>& lCoarseNodesPerDim) const;


};  // class RegionRFactory_kokkos

}  // namespace MueLu

#define MUELU_REGIONRFACTORY_KOKKOS_SHORT
#endif  // MUELU_REGIONRFACTORY_KOKKOS_DECL_HPP