MueLu_LocalPermutationStrategy_decl.hpp

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// @HEADER
// *****************************************************************************
//        MueLu: A package for multigrid based preconditioning
//
// Copyright 2012 NTESS and the MueLu contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER
 
/*
 * MueLu_LocalPermutationStrategy_decl.hpp
 *
 *  Created on: Feb 19, 2013
 *      Author: tobias
 */
 
#ifndef MUELU_LOCALPERMUTATIONSTRATEGY_DECL_HPP_
#define MUELU_LOCALPERMUTATIONSTRATEGY_DECL_HPP_
 
#include <Xpetra_Matrix_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_ */