MueLu_BlockedDirectSolver_decl.hpp

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/*
 * MueLu_BlockedDirectSolver_decl.hpp
 *
 *  Created on: 09.02.2014
 *      Author: tobias
 */

#ifndef MUELU_BLOCKEDDIRECTSOLVER_DECL_HPP_
#define MUELU_BLOCKEDDIRECTSOLVER_DECL_HPP_

#include "MueLu_ConfigDefs.hpp"

#include <Teuchos_ParameterList.hpp>

#include <Xpetra_MapExtractor_fwd.hpp>

#include "MueLu_BlockedDirectSolver_fwd.hpp"
#include "MueLu_SmootherPrototype.hpp"
#include "MueLu_DirectSolver_fwd.hpp"
#include "MueLu_MergedBlockedMatrixFactory_fwd.hpp"
#include "MueLu_FactoryBase_fwd.hpp"
#include "MueLu_FactoryManagerBase_fwd.hpp"
#include "MueLu_SmootherBase_fwd.hpp"
#include "MueLu_Utilities_fwd.hpp"

namespace MueLu {

  template <class Scalar = SmootherPrototype<>::scalar_type,
            class LocalOrdinal = typename SmootherPrototype<Scalar>::local_ordinal_type,
            class GlobalOrdinal = typename SmootherPrototype<Scalar, LocalOrdinal>::global_ordinal_type,
            class Node = typename SmootherPrototype<Scalar, LocalOrdinal, GlobalOrdinal>::node_type>
  class BlockedDirectSolver : public SmootherPrototype<Scalar,LocalOrdinal,GlobalOrdinal,Node>
  {
    typedef Xpetra::MapExtractor<Scalar, LocalOrdinal, GlobalOrdinal, Node> MapExtractorClass;

#undef MUELU_BLOCKEDDIRECTSOLVER_SHORT
#include "MueLu_UseShortNames.hpp"

  public:



    BlockedDirectSolver();

    virtual ~BlockedDirectSolver() { }


    RCP<const ParameterList> GetValidParameterList() const;

    void DeclareInput(Level &currentLevel) const;



    void Setup(Level &currentLevel);

    void Apply(MultiVector& X, const MultiVector& B, bool InitialGuessIsZero = false) const;

    RCP<SmootherPrototype> Copy() const;



    std::string description() const;

    //using MueLu::Describable::describe; // overloading, not hiding
    void print(Teuchos::FancyOStream &out, const VerbLevel verbLevel = Default) const;

    size_t getNodeSmootherComplexity() const;


  private:

    std::string type_;

    RCP<MergedBlockedMatrixFactory> MergedAFact_;

    RCP<DirectSolver> s_; // solver object

    RCP<Matrix> A_;                  // < ! internal blocked operator "A" generated by AFact_

  }; // class BlockedDirectSolver

} // namespace MueLu

#define MUELU_BLOCKEDDIRECTSOLVER_SHORT

#endif /* MUELU_BLOCKEDDIRECTSOLVER_DECL_HPP_ */