MeshMaterialVariableSynchronizer.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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/* MeshMaterialVariableSynchronizer.h                          (C) 2000-2025 */
/*                                                                           */
/* Material variable synchronizer.                                           */
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#ifndef ARCANE_MATERIALS_INTERNAL_MESHMATERIALVARIABLESYNCHRONIZER_H
#define ARCANE_MATERIALS_INTERNAL_MESHMATERIALVARIABLESYNCHRONIZER_H
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#include "arcane/utils/TraceAccessor.h"
#include "arcane/utils/Array.h"
#include "arcane/utils/Ref.h"
 
#include "arcane/materials/MatVarIndex.h"
#include "arcane/materials/IMeshMaterialVariableSynchronizer.h"
 
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namespace Arcane::Materials
{
 
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class AllEnvCellVectorView;
 
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class ARCANE_MATERIALS_EXPORT MeshMaterialVariableSynchronizer
: public TraceAccessor
, public IMeshMaterialVariableSynchronizer
{
 public:
 
  MeshMaterialVariableSynchronizer(IMeshMaterialMng* material_mng,
                                   IVariableSynchronizer* var_syncer,
                                   MatVarSpace mvs);
 
 public:
 
  IVariableSynchronizer* variableSynchronizer() override;
  ConstArrayView<MatVarIndex> sharedItems(Int32 index) override;
  ConstArrayView<MatVarIndex> ghostItems(Int32 index) override;
  void recompute() override;
  void checkRecompute() override;
  Ref<IMeshMaterialSynchronizeBuffer> commonBuffer() override { return m_common_buffer; }
  eMemoryRessource bufferMemoryRessource() const override { return m_buffer_memory_ressource; }
 
 private:
 
  IMeshMaterialMng* m_material_mng;
  IVariableSynchronizer* m_variable_synchronizer;
  UniqueArray<UniqueArray<MatVarIndex>> m_shared_items;
  UniqueArray<UniqueArray<MatVarIndex>> m_ghost_items;
  Int64 m_timestamp;
  MatVarSpace m_var_space;
  Ref<IMeshMaterialSynchronizeBuffer> m_common_buffer;
  eMemoryRessource m_buffer_memory_ressource = eMemoryRessource::UnifiedMemory;
  // Allows forcing the use or non-use of the accelerator implementation
  Int32 m_use_accelerator_mode = -1;
 
 public:
 
  // Must be public for CUDA.
  void _fillCellsAccelerator(Array<MatVarIndex>& items, AllEnvCellVectorView view, RunQueue& queue);
 
 private:
 
  void _fillCells(Array<MatVarIndex>& items, AllEnvCellVectorView view, RunQueue& queue);
  void _fillCellsSequential(Array<MatVarIndex>& items, AllEnvCellVectorView view);
  void _initialize();
};
 
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} // End namespace Arcane::Materials
 
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#endif