MueLu_PgPFactory_decl.hpp

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//        MueLu: A package for multigrid based preconditioning
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#ifndef MUELU_PGPFACTORY_DECL_HPP_
#define MUELU_PGPFACTORY_DECL_HPP_
 
#include <Xpetra_Vector_fwd.hpp>
#include <Xpetra_VectorFactory_fwd.hpp>
#include <Xpetra_Matrix_fwd.hpp>
#include <Xpetra_Import_fwd.hpp>
#include <Xpetra_ImportFactory_fwd.hpp>
#include <Xpetra_Export_fwd.hpp>
#include <Xpetra_ExportFactory_fwd.hpp>
 
#include "MueLu_ConfigDefs.hpp"
 
#include "MueLu_PerfUtils_fwd.hpp"
#include "MueLu_PFactory.hpp"
#include "MueLu_Utilities_fwd.hpp"
 
namespace MueLu {
 
  /* Options defining how to pick-up the next root node in the local aggregation procedure */
  enum MinimizationNorm {
    ANORM = 0, /* A norm   */
    L2NORM = 1, /* L2 norm */
    DINVANORM  = 2 /* Dinv A norm */
  };

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



    PgPFactory() { }

    virtual ~PgPFactory() { }



 
    RCP<const ParameterList> GetValidParameterList() const;

    void SetMinimizationMode(MinimizationNorm minnorm);

    MinimizationNorm GetMinimizationMode();


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



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

 
    void ReUseDampingParameters(bool bReuse);
 
  private:
 
    void MultiplySelfAll(const RCP<Matrix>& Op, Teuchos::RCP<Xpetra::Vector<Scalar,LocalOrdinal,GlobalOrdinal,Node> >& InnerProdVec) const;
 
    void MultiplyAll(const RCP<Matrix>& left, const RCP<Matrix>& right, Teuchos::RCP<Xpetra::Vector<Scalar,LocalOrdinal,GlobalOrdinal,Node> >& InnerProdVec) const;
 
    void ComputeRowBasedOmega(Level& fineLevel, Level& coarseLevel, const RCP<Matrix>& A, const RCP<Matrix>& P0, const RCP<Matrix>& DinvAP0, RCP<Xpetra::Vector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > & RowBasedOmega) const;
 
  private:

    std::string diagonalView_; // TODO do we need this?
  };
 
} //namespace MueLu
 
#define MUELU_PGPFACTORY_SHORT
#endif /* MUELU_PGPFACTORY_DECL_HPP_ */