MueLu_LocalPermutationStrategy_decl.hpp

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/*
 * MueLu_LocalPermutationStrategy_decl.hpp
 *
 *  Created on: Feb 19, 2013
 *      Author: tobias
 */

#ifndef MUELU_LOCALPERMUTATIONSTRATEGY_DECL_HPP_
#define MUELU_LOCALPERMUTATIONSTRATEGY_DECL_HPP_

#include <Xpetra_MultiVector_fwd.hpp>
#include <Xpetra_Matrix_fwd.hpp>
#include <Xpetra_CrsGraph_fwd.hpp>
#include <Xpetra_Vector_fwd.hpp>
#include <Xpetra_VectorFactory_fwd.hpp>
#include <Xpetra_CrsMatrixWrap_fwd.hpp>

#include "MueLu_ConfigDefs.hpp"
#include "MueLu_Level.hpp"
#include "MueLu_BaseClass.hpp"

namespace MueLu {


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


    void BuildPermutation(const Teuchos::RCP<Matrix> & A, const Teuchos::RCP<const Map> permRowMap, Level & currentLevel, const FactoryBase* genFactory) const;



  private:

    void BuildPermutations(size_t nDofsPerNode) const;

    mutable std::vector<std::vector<int> > result_permvecs_;
    mutable size_t permWidth_;

    GlobalOrdinal getGlobalDofId(const Teuchos::RCP<Matrix> & A, LocalOrdinal localNodeId, LocalOrdinal localDof) const;
    GlobalOrdinal globalDofId2globalNodeId( const Teuchos::RCP<Matrix> & A, GlobalOrdinal grid ) const;
   };

} // namespace MueLu

#define MUELU_LOCALPERMUTATIONSTRATEGY_SHORT

#endif /* MUELU_LOCALPERMUTATIONSTRATEGY_DECL_HPP_ */