MachineMemoryWindowBase.cc

// -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
//-----------------------------------------------------------------------------
// Copyright 2000-2025 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
// See the top-level COPYRIGHT file for details.
// SPDX-License-Identifier: Apache-2.0
//-----------------------------------------------------------------------------
/*---------------------------------------------------------------------------*/
/* MachineMemoryWindowBase.cc                                  (C) 2000-2025 */
/*                                                                           */
/* Classe permettant de créer une fenêtre mémoire partagée entre les         */
/* processus d'un même noeud.                                                */
/*---------------------------------------------------------------------------*/
 
#include "arcane/core/MachineMemoryWindowBase.h"
 
#include "arcane/core/IParallelMng.h"
#include "arcane/core/internal/IParallelMngInternal.h"
 
#include "arcane/utils/NumericTypes.h"
 
#include "arccore/message_passing/internal/IMachineMemoryWindowBaseInternal.h"
 
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namespace Arcane
{
 
MachineMemoryWindowBase::
MachineMemoryWindowBase(IParallelMng* pm, Int64 nb_elem_segment, Int32 sizeof_elem)
: m_pm_internal(pm->_internalApi())
, m_sizeof_elem(sizeof_elem)
{
  m_node_window_base = m_pm_internal->createMachineMemoryWindowBase(nb_elem_segment * static_cast<Int64>(sizeof_elem), sizeof_elem);
}
 
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Span<std::byte> MachineMemoryWindowBase::
segmentView() const
{
  return m_node_window_base->segment();
}
 
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Span<std::byte> MachineMemoryWindowBase::
segmentView(Int32 rank) const
{
  return m_node_window_base->segment(rank);
}
 
/*---------------------------------------------------------------------------*/
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Span<std::byte> MachineMemoryWindowBase::
windowView() const
{
  return m_node_window_base->window();
}
 
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Span<const std::byte> MachineMemoryWindowBase::
segmentConstView() const
{
  return m_node_window_base->segment();
}
 
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Span<const std::byte> MachineMemoryWindowBase::
segmentConstView(Int32 rank) const
{
  return m_node_window_base->segment(rank);
}
 
/*---------------------------------------------------------------------------*/
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Span<const std::byte> MachineMemoryWindowBase::
windowConstView() const
{
  return m_node_window_base->window();
}
 
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void MachineMemoryWindowBase::
resizeSegment(Integer new_nb_elem) const
{
  m_node_window_base->resizeSegment(new_nb_elem * static_cast<Int64>(m_sizeof_elem));
}
 
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/*---------------------------------------------------------------------------*/
 
ConstArrayView<Int32> MachineMemoryWindowBase::
machineRanks() const
{
  return m_node_window_base->machineRanks();
}
 
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void MachineMemoryWindowBase::
barrier() const
{
  m_node_window_base->barrier();
}
 
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} // End namespace Arcane
 
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