MeshExchanger.h

// -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
//-----------------------------------------------------------------------------
// Copyright 2000-2026 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
// See the top-level COPYRIGHT file for details.
// SPDX-License-Identifier: Apache-2.0
//-----------------------------------------------------------------------------
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/* MeshExchanger.h                                             (C) 2000-2024 */
/*                                                                           */
/* Handling of a mesh exchange between sub-domains.                          */
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#ifndef ARCANE_MESH_MESHEXCHANGER_H
#define ARCANE_MESH_MESHEXCHANGER_H
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/*---------------------------------------------------------------------------*/
 
#include "arcane/utils/TraceAccessor.h"
#include "arcane/utils/List.h"
#include "arcane/core/IMeshExchanger.h"
#include "arcane/core/ParallelExchangerOptions.h"
#include "arcane/core/IMesh.h"
 
#include <map>
 
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namespace Arcane
{
class ITimeStats;
}
 
namespace Arcane::mesh
{
 
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class ARCANE_MESH_EXPORT MeshExchanger
: public TraceAccessor
, public IMeshExchanger
{
 private:
 
  typedef std::map<IItemFamily*, IItemFamilyExchanger*> ItemFamilyExchangerMap;
 
 public:
 
  MeshExchanger(IMesh* mesh, ITimeStats* stats);
  ~MeshExchanger();
 
 public:
 
  bool computeExchangeInfos() override;
  void processExchange() override;
  void removeNeededItems() override;
  void allocateReceivedItems() override;
  void updateItemGroups() override;
  void updateVariables() override;
  void finalizeExchange() override;
  IPrimaryMesh* mesh() const override;
  void build();
  IItemFamilyExchanger* findExchanger(IItemFamily* family) override;
  ePhase phase() const override { return m_phase; }
 
 protected:
 
  void _setNextPhase(ePhase next_phase);
 
 private:
 
  IMesh* m_mesh;
  List<IItemFamilyExchanger*> m_family_exchangers;
  ItemFamilyExchangerMap m_family_exchanger_map;
  ITimeStats* m_time_stats;
  ePhase m_phase;
  ParallelExchangerOptions m_exchanger_option;
 
  void _checkPhase(ePhase wanted_phase);
  void _buildWithItemFamilyNetwork();
  void _addItemFamilyExchanger(IItemFamily* family);
};
 
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} // End namespace Arcane::mesh
 
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#endif