HybridMachineShMemWinBaseInternalCreator.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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/* HybridMachineShMemWinBaseInternalCreator.h                  (C) 2000-2026 */
/*                                                                           */
/* Class allowing the creation of objects of type                            */
/* HybridContigMachineShMemWinBaseInternal. An instance of this object must  */
/* be shared by all threads of a process.                                    */
/*---------------------------------------------------------------------------*/
 
#ifndef ARCANE_PARALLEL_MPITHREAD_INTERNAL_HYBRIDMACHINESHMEMWINBASEINTERNALCREATOR_H
#define ARCANE_PARALLEL_MPITHREAD_INTERNAL_HYBRIDMACHINESHMEMWINBASEINTERNALCREATOR_H
 
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#include "arcane/utils/Ref.h"
#include "arcane/utils/UniqueArray.h"
 
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namespace Arcane
{
class MpiParallelMng;
 
namespace MessagePassing
{
  class IContigMachineShMemWinBaseInternal;
  class HybridContigMachineShMemWinBaseInternal;
  class HybridMachineShMemWinBaseInternal;
 
  namespace Mpi
  {
    class MpiMachineShMemWinBaseInternalCreator;
    class MpiMultiMachineShMemWinBaseInternal;
  } // namespace Mpi
} // namespace MessagePassing
} // namespace Arcane
 
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namespace Arcane::MessagePassing
{
 
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class HybridMachineShMemWinBaseInternalCreator
{
 public:
 
  HybridMachineShMemWinBaseInternalCreator(Int32 nb_rank_local_proc, IThreadBarrier* barrier);
  ~HybridMachineShMemWinBaseInternalCreator() = default;
 
 public:
 
  void initializeMpiWindowCreator(Int32 my_rank_global, MpiParallelMng* mpi_parallel_mng);
 
  HybridContigMachineShMemWinBaseInternal* createWindow(Int32 my_rank_global, Int64 sizeof_segment, Int32 sizeof_type, MpiParallelMng* mpi_parallel_mng);
  HybridMachineShMemWinBaseInternal* createDynamicWindow(Int32 my_rank_global, Int64 sizeof_segment, Int32 sizeof_type, MpiParallelMng* mpi_parallel_mng);
 
  ConstArrayView<Int32> machineRanks();
  void machineBarrier(Int32 my_rank_global, MpiParallelMng* mpi_parallel_mng) const;
 
 private:
 
  void _buildMachineRanksArray(ConstArrayView<Int32> mpi_machine_ranks);
 
 private:
 
  Int32 m_nb_rank_local_proc = 0;
  Int64 m_sizeof_segment_local_proc = 0;
  IThreadBarrier* m_barrier = nullptr;
  UniqueArray<Int32> m_machine_ranks;
 
  Ref<IContigMachineShMemWinBaseInternal> m_window;
  Ref<IContigMachineShMemWinBaseInternal> m_sizeof_sub_segments;
  Ref<IContigMachineShMemWinBaseInternal> m_sum_sizeof_sub_segments;
  //-----------
  Ref<Mpi::MpiMultiMachineShMemWinBaseInternal> m_windows;
  UniqueArray<Int64> m_sizeof_resize_segments;
};
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} // namespace Arcane::MessagePassing
 
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#endif