MueLu_SmooVecCoalesceDropFactory_decl.hpp

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#ifndef MUELU_SMOOVECCOALESCEDROPFACTORY_DECL_HPP
#define MUELU_SMOOVECCOALESCEDROPFACTORY_DECL_HPP

#include <Xpetra_Matrix_fwd.hpp>
#include <Xpetra_MultiVector_fwd.hpp>
#include <Xpetra_VectorFactory_fwd.hpp>
#include <Xpetra_Vector_fwd.hpp>
#include <Xpetra_ImportFactory_fwd.hpp>
#include <Xpetra_MapFactory_fwd.hpp>
#include <Xpetra_CrsGraph_fwd.hpp>
#include <Xpetra_CrsGraphFactory.hpp> //TODO
#include <Xpetra_StridedMap_fwd.hpp>
#include <Xpetra_Map_fwd.hpp>

#include "MueLu_ConfigDefs.hpp"
#include "MueLu_SingleLevelFactoryBase.hpp"
#include "MueLu_SmooVecCoalesceDropFactory_fwd.hpp"
#include "MueLu_Utilities_fwd.hpp"

#include "MueLu_Level_fwd.hpp"
#include "MueLu_GraphBase.hpp"
#include "MueLu_Graph_fwd.hpp"
#include "MueLu_LWGraph_fwd.hpp"
#include "MueLu_AmalgamationInfo_fwd.hpp"
#include "MueLu_AmalgamationFactory_fwd.hpp"
#include "MueLu_PreDropFunctionBaseClass_fwd.hpp"
#include "MueLu_PreDropFunctionConstVal_fwd.hpp"

namespace MueLu {

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

  public:



    SmooVecCoalesceDropFactory();

    virtual ~SmooVecCoalesceDropFactory() { }

    RCP<const ParameterList> GetValidParameterList() const;




    void DeclareInput(Level &currentLevel) const;

    void SetPreDropFunction(const RCP<MueLu::PreDropFunctionBaseClass<Scalar,LocalOrdinal,GlobalOrdinal,Node> > &predrop) { predrop_ = predrop; }


    void Build(Level &currentLevel) const; // Build

  private:

    // pre-drop function
    mutable
     RCP<PreDropFunctionBaseClass> predrop_;

    void badGuysCoalesceDrop(const Matrix& Amat, Teuchos::ArrayRCP<Scalar> & dropParams, LO nPDEs, const MultiVector&  smoothedTVecs, const MultiVector& smoothedNull, RCP<GraphBase>& filteredGraph) const;
    void badGuysDropfunc(LO row, const Teuchos::ArrayView<const LocalOrdinal>& indices, const Teuchos::ArrayView<const Scalar>& vals, const MultiVector&  smoothedTVecs, LO nPDEs, Teuchos::ArrayRCP<Scalar> & penalties, const MultiVector& smoothedNull, Teuchos::ArrayRCP<LO>& Bcols, Teuchos::ArrayRCP<bool>& keepOrNot, LO &Nbcols, LO nLoc) const;

  }; //class SmooVecCoalesceDropFactory

} //namespace MueLu

#define MUELU_SMOOVECCOALESCEDROPFACTORY_SHORT
#endif // MUELU_SMOOVECCOALESCEDROPFACTORY_DECL_HPP