MueLu_AggregationPhase2aAlgorithm_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_AGGREGATIONPHASE2AALGORITHM_DECL_HPP
#define MUELU_AGGREGATIONPHASE2AALGORITHM_DECL_HPP

#include "MueLu_ConfigDefs.hpp"

#include <KokkosCompat_ClassicNodeAPI_Wrapper.hpp>

#include "MueLu_AggregationPhase2aAlgorithm_kokkos_fwd.hpp"

#include "MueLu_Aggregates_kokkos_fwd.hpp"
#include "MueLu_AggregationAlgorithmBase_kokkos.hpp"
#include "MueLu_FactoryBase_fwd.hpp"
#include "MueLu_GraphBase.hpp"

namespace MueLu {
  template<class LocalOrdinal = DefaultLocalOrdinal,
           class GlobalOrdinal = DefaultGlobalOrdinal,
           class Node = DefaultNode>
  class AggregationPhase2aAlgorithm_kokkos :
    public MueLu::AggregationAlgorithmBase_kokkos<LocalOrdinal,GlobalOrdinal,Node> {
#undef MUELU_AGGREGATIONPHASE2AALGORITHM_KOKKOS_SHORT
#include "MueLu_UseShortNamesOrdinal.hpp"

  public:
    using device_type     = typename LWGraph_kokkos::device_type;
    using execution_space = typename LWGraph_kokkos::execution_space;
    using memory_space    = typename LWGraph_kokkos::memory_space;



    AggregationPhase2aAlgorithm_kokkos(const RCP<const FactoryBase>& /* graphFact */ = Teuchos::null) { }

    virtual ~AggregationPhase2aAlgorithm_kokkos() { }





    void BuildAggregates(const Teuchos::ParameterList& params,
                         const LWGraph_kokkos& graph,
                         Aggregates_kokkos& aggregates,
                         Kokkos::View<unsigned*, device_type>& aggStat,
                         LO& numNonAggregatedNodes) const;

    void BuildAggregatesRandom(const Teuchos::ParameterList& params,
                               const LWGraph_kokkos& graph,
                               Aggregates_kokkos& aggregates,
                               Kokkos::View<unsigned*, device_type>& aggStat,
                               LO& numNonAggregatedNodes) const;

    void BuildAggregatesDeterministic(const Teuchos::ParameterList& params,
                                      const LWGraph_kokkos& graph,
                                      Aggregates_kokkos& aggregates,
                                      Kokkos::View<unsigned*, device_type>& aggStat,
                                      LO& numNonAggregatedNodes) const;

    std::string description() const { return "Phase 2a (secondary)"; }
  };

} //namespace MueLu

#define MUELU_AGGREGATIONPHASE2AALGORITHM_KOKKOS_SHORT
#endif // MUELU_AGGREGATIONPHASE2AALGORITHM_KOKKOS_DECL_HPP