MeshComponentPartData.cc

// -*- 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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/* MeshComponentPartData.cc                                    (C) 2000-2024 */
/*                                                                           */
/* Data of a part (pure or partial) of a constituent.                        */
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/*---------------------------------------------------------------------------*/
 
#include "arcane/utils/FatalErrorException.h"
#include "arcane/utils/ValueChecker.h"
#include "arcane/utils/PlatformUtils.h"
#include "arcane/utils/ArraySimdPadder.h"
#include "arcane/utils/IFunctor.h"
 
#include "arcane/core/IItemFamily.h"
 
#include "arcane/core/materials/IMeshComponent.h"
#include "arcane/core/materials/ComponentItemInternal.h"
#include "arcane/core/materials/ComponentPartItemVectorView.h"
#include "arcane/core/materials/internal/IMeshComponentInternal.h"
 
#include "arcane/materials/internal/MeshComponentPartData.h"
 
#include "arcane/accelerator/Filter.h"
#include "arcane/accelerator/RunCommandLoop.h"
 
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namespace Arcane::Materials
{
 
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MeshComponentPartData::
MeshComponentPartData(IMeshComponent* component, const String& debug_name)
: TraceAccessor(component->traceMng())
, m_component(component)
, m_impure_var_idx(component->_internalApi()->variableIndexerIndex() + 1)
{
  // Utilise l'allocateur des données pour permettre d'accéder à ces valeurs
  // sur les accélérateurs
  IMemoryAllocator* allocator = platform::getDefaultDataAllocator();
  for (Integer i = 0; i < 2; ++i) {
    m_value_indexes[i] = UniqueArray<Int32>(allocator);
    m_items_internal_indexes[i] = UniqueArray<Int32>(allocator);
  }
  if (!debug_name.empty()) {
    String base_name = String("MeshComponentPartData") + debug_name;
    for (Integer i = 0; i < 2; ++i) {
      m_value_indexes[i].setDebugName(base_name + "ValueIndexes" + String::fromNumber(i));
      m_items_internal_indexes[i].setDebugName(base_name + "ValueIndexes" + String::fromNumber(i));
    }
  }
}
 
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void MeshComponentPartData::
_notifyValueIndexesChanged(RunQueue* queue)
{
  FixedArray<Span<Int32>, 2> indexes;
  indexes[0] = m_value_indexes[0].span();
  indexes[1] = m_value_indexes[1].span();
 
  bool is_need_padding = false;
  for (Int32 i = 0; i < 2; ++i)
    is_need_padding |= ArraySimdPadder::isNeedPadding(Span<const Int32>(indexes[i]));
 
  if (!is_need_padding)
    return;
 
  if (queue) {
    auto command = makeCommand(queue);
    command << RUNCOMMAND_LOOP1(iter, 2)
    {
      auto [i] = iter();
      ArraySimdPadder::applySimdPaddingView(indexes[i]);
    };
  }
  else {
    ArraySimdPadder::applySimdPaddingView(indexes[0]);
    ArraySimdPadder::applySimdPaddingView(indexes[1]);
  }
}
 
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void MeshComponentPartData::
_setFromMatVarIndexes(ConstArrayView<MatVarIndex> matvar_indexes, RunQueue& queue)
{
  Int32 nb_index = matvar_indexes.size();
 
  Int32Array& pure_indexes = m_value_indexes[(Int32)eMatPart::Pure];
  Int32Array& impure_indexes = m_value_indexes[(Int32)eMatPart::Impure];
 
  Int32Array& pure_internal_indexes = m_items_internal_indexes[(Int32)eMatPart::Pure];
  Int32Array& impure_internal_indexes = m_items_internal_indexes[(Int32)eMatPart::Impure];
 
  pure_indexes.resize(nb_index);
  pure_internal_indexes.resize(nb_index);
 
  // TODO: Perform a first pass to calculate the number of pure values
  // and thus allocate directly to the correct size.
  info(4) << "BEGIN_BUILD_PART_DATA_FOR_COMPONENT c=" << m_component->name();
  Accelerator::GenericFilterer filterer(queue);
 
  Int32 nb_impure = 0;
  {
    SmallSpan<Int32> pure_indexes_view(pure_indexes.view());
    SmallSpan<Int32> pure_internal_indexes_view(pure_internal_indexes.view());
 
    auto is_pure_lambda = [=] ARCCORE_HOST_DEVICE(Int32 i) -> bool {
      return matvar_indexes[i].arrayIndex() == 0;
    };
    auto setter_lambda = [=] ARCCORE_HOST_DEVICE(Int32 i, Int32 output_index) {
      pure_indexes_view[output_index] = matvar_indexes[i].valueIndex();
      pure_internal_indexes_view[output_index] = i;
    };
    filterer.applyWithIndex(nb_index, is_pure_lambda, setter_lambda, A_FUNCINFO);
    Int32 nb_out = filterer.nbOutputElement();
    pure_indexes.resize(nb_out);
    pure_internal_indexes.resize(nb_out);
    nb_impure = nb_index - nb_out;
  }
 
  impure_indexes.resize(nb_impure);
  impure_internal_indexes.resize(nb_impure);
 
  {
    SmallSpan<Int32> impure_indexes_view(impure_indexes.view());
    SmallSpan<Int32> impure_internal_indexes_view(impure_internal_indexes.view());
    auto is_impure_lambda = [=] ARCCORE_HOST_DEVICE(Int32 i) -> bool {
      return matvar_indexes[i].arrayIndex() != 0;
    };
    auto setter_lambda = [=] ARCCORE_HOST_DEVICE(Int32 i, Int32 output_index) {
      impure_indexes_view[output_index] = matvar_indexes[i].valueIndex();
      impure_internal_indexes_view[output_index] = i;
    };
    filterer.applyWithIndex(nb_index, is_impure_lambda, setter_lambda, A_FUNCINFO);
    filterer.nbOutputElement();
  }
 
  info(4) << "BUILD_PART_DATA_FOR_COMPONENT c=" << m_component->name()
          << " nb_pure=" << pure_indexes.size()
          << " nb_impure=" << impure_indexes.size();
 
  _notifyValueIndexesChanged(&queue);
}
 
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void MeshComponentPartData::
_setFromMatVarIndexes(ConstArrayView<MatVarIndex> globals,
                      ConstArrayView<MatVarIndex> multiples)
{
  Integer nb_global = globals.size();
  Integer nb_multiple = multiples.size();
 
  {
    const auto mat_part = static_cast<Int32>(eMatPart::Pure);
    Int32Array& idx = m_value_indexes[mat_part];
    idx.resize(nb_global);
    for (Integer i = 0; i < nb_global; ++i)
      idx[i] = globals[i].valueIndex();
  }
 
  {
    const auto mat_part = static_cast<Int32>(eMatPart::Impure);
    Int32Array& idx = m_value_indexes[mat_part];
    idx.resize(nb_multiple);
    for (Integer i = 0; i < nb_multiple; ++i)
      idx[i] = multiples[i].valueIndex();
  }
 
  _notifyValueIndexesChanged(nullptr);
}
 
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void MeshComponentPartData::
_setConstituentListView(const ConstituentItemLocalIdListView& v)
{
  m_constituent_list_view = v;
}
 
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void MeshComponentPartData::
checkValid()
{
  info(4) << "CHECK_VALID_COMPONENT_PART_DATA c=" << m_component->name();
  _checkNeedRecompute();
  ValueChecker vc(A_FUNCINFO);
  Integer nb_error = 0;
  for (Integer i = 0; i < 2; ++i) {
    Int32 var_idx = (i == 0) ? 0 : m_impure_var_idx;
    Int32ConstArrayView indexes = m_value_indexes[i];
    Int32ConstArrayView item_indexes = m_items_internal_indexes[i];
    Integer nb_item = indexes.size();
    vc.areEqual(nb_item, item_indexes.size(), "Indexes size");
    for (Integer k = 0; k < nb_item; ++k) {
      MatVarIndex mvi(var_idx, indexes[k]);
      MatVarIndex component_mvi = m_constituent_list_view._matVarIndex(item_indexes[k]);
      if (mvi != component_mvi) {
        info() << "Bad MatVarIndex i=" << i << " k=" << k
               << " mvi=" << mvi << " component_mvi=" << component_mvi;
        ++nb_error;
      }
    }
  }
  if (nb_error != 0)
    ARCANE_FATAL("Bad component part data nb_error={0}", nb_error);
}
 
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void MeshComponentPartData::
_checkNeedRecompute()
{
  if (!m_is_need_recompute)
    return;
  if (!m_compute_functor)
    ARCANE_FATAL("No compute functor");
  m_compute_functor->executeFunctor();
  m_is_need_recompute = false;
}
 
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ComponentPartItemVectorView MeshComponentPartData::
partView(eMatPart part)
{
  _checkNeedRecompute();
  const auto mat_part = static_cast<Int32>(part);
  Int32ConstArrayView value_indexes = m_value_indexes[mat_part];
  Int32ConstArrayView item_indexes = m_items_internal_indexes[mat_part];
  Int32 var_idx = (part == eMatPart::Pure) ? 0 : impureVarIdx();
  return { m_component, var_idx, value_indexes,
           item_indexes, m_constituent_list_view, part };
}
 
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ComponentPurePartItemVectorView MeshComponentPartData::
pureView()
{
  _checkNeedRecompute();
  const auto mat_part = static_cast<Int32>(eMatPart::Pure);
  Int32ConstArrayView value_indexes = m_value_indexes[mat_part];
  Int32ConstArrayView item_indexes = m_items_internal_indexes[mat_part];
  return { m_component, value_indexes,
           item_indexes, m_constituent_list_view };
}
 
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ComponentImpurePartItemVectorView MeshComponentPartData::
impureView()
{
  _checkNeedRecompute();
  const auto mat_part = static_cast<Int32>(eMatPart::Impure);
  Int32ConstArrayView value_indexes = m_value_indexes[mat_part];
  Int32ConstArrayView item_indexes = m_items_internal_indexes[mat_part];
  const Int32 var_idx = impureVarIdx();
  return { m_component, var_idx, value_indexes,
           item_indexes, m_constituent_list_view };
}
 
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} // End namespace Arcane::Materials
 
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