MueLu_BlockedGaussSeidelSmoother_decl.hpp

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/*
 * MueLu_BlockedGaussSeidelSmoother_decl.hpp
 *
 *  Created on: 30.01.2012
 *      Author: tobias
 */

#ifndef MUELU_BLOCKEDGAUSSSEIDELSMOOTHER_DECL_HPP_
#define MUELU_BLOCKEDGAUSSSEIDELSMOOTHER_DECL_HPP_

#include "MueLu_ConfigDefs.hpp"

#include <Teuchos_ParameterList.hpp>

#include <Xpetra_Matrix_fwd.hpp>
#include <Xpetra_BlockedCrsMatrix_fwd.hpp>
#include <Xpetra_ReorderedBlockedCrsMatrix_fwd.hpp>
#include <Xpetra_MultiVectorFactory_fwd.hpp>
#include <Xpetra_MapExtractor_fwd.hpp>

#include "MueLu_BlockedGaussSeidelSmoother_fwd.hpp"

#include "MueLu_SmootherPrototype.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 BlockedGaussSeidelSmoother :
    public SmootherPrototype<Scalar,LocalOrdinal,GlobalOrdinal,Node>
  {
    typedef Xpetra::MapExtractor<Scalar, LocalOrdinal, GlobalOrdinal, Node> MapExtractorClass;

#undef MUELU_BLOCKEDGAUSSSEIDELSMOOTHER_SHORT
#include "MueLu_UseShortNames.hpp"

  public:



    BlockedGaussSeidelSmoother();

    virtual ~BlockedGaussSeidelSmoother();


    RCP<const ParameterList> GetValidParameterList() const;

    void DeclareInput(Level &currentLevel) const;

    //void AddFactoryManager(RCP<const FactoryManagerBase> FactManager);

    void AddFactoryManager(RCP<const FactoryManagerBase> FactManager, int pos);





    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_;

    std::vector<Teuchos::RCP<const FactoryManagerBase> > FactManager_;

    std::vector<Teuchos::RCP<const SmootherBase> > Inverse_;

    std::vector<bool> bIsBlockedOperator_;

    RCP<FactoryBase> AFact_;

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

    RCP<const MapExtractorClass> rangeMapExtractor_;  
    RCP<const MapExtractorClass> domainMapExtractor_; 
  }; // class Amesos2Smoother

} // namespace MueLu

#define MUELU_BLOCKEDGAUSSSEIDELSMOOTHER_SHORT

#endif /* MUELU_BLOCKEDGAUSSSEIDELSMOOTHER_DECL_HPP_ */