ArcaneLauncher.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
//-----------------------------------------------------------------------------
/*---------------------------------------------------------------------------*/
/* ArcaneLauncher.cc                                           (C) 2000-2026 */
/*                                                                           */
/* Classe gérant le lancement de l'exécution.                                */
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
#include "arcane/launcher/ArcaneLauncher.h"
 
#include "arcane/launcher/IDirectExecutionContext.h"
#include "arcane/launcher/DirectSubDomainExecutionContext.h"
#include "arcane/launcher/GeneralHelp.h"
 
#include "arcane/utils/FatalErrorException.h"
#include "arcane/utils/PlatformUtils.h"
#include "arcane/utils/JSONReader.h"
#include "arcane/utils/Exception.h"
#include "arcane/utils/ParameterList.h"
#include "arcane/utils/Ref.h"
#include "arcane/utils/ConcurrencyUtils.h"
#include "arcane/utils/internal/ParallelLoopOptionsProperties.h"
#include "arcane/utils/internal/ApplicationInfoProperties.h"
#include "arcane/core/internal/DotNetRuntimeInitialisationInfoProperties.h"
#include "arcane/accelerator/core/internal/AcceleratorRuntimeInitialisationInfoProperties.h"
 
#include "arccore/common/internal/Property.h"
#include "arccore/common/internal/ParameterListPropertyReader.h"
#include "arccore/common/internal/JSONPropertyReader.h"
 
#include "arcane/impl/ArcaneMain.h"
#include "arcane/impl/ArcaneSimpleExecutor.h"
 
#include "arcane/core/IDirectSubDomainExecuteFunctor.h"
 
#include <iomanip>
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
namespace Arcane
{
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
namespace
{
  bool global_has_init_done = false;
  bool _checkInitCalled()
  {
    if (!global_has_init_done) {
      std::cerr << "ArcaneLauncher::init() doit être appelé avant";
      return true;
    }
    return false;
  }
 
} // namespace
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
class DirectExecutionContextImpl
: public IDirectExecutionContext
{
 public:
 
  explicit DirectExecutionContextImpl(ArcaneSimpleExecutor* simple_exec)
  : m_simple_exec(simple_exec)
  {}
 
 public:
 
  ISubDomain* createSequentialSubDomain() override
  {
    return createSequentialSubDomain(String());
  }
  ISubDomain* createSequentialSubDomain(const String& case_file_name) override
  {
    return m_simple_exec->createSubDomain(case_file_name);
  }
  ISubDomain* subDomain() const { return nullptr; }
 
 private:
 
  ArcaneSimpleExecutor* m_simple_exec;
};
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
void _checkReadConfigFile(StringView config_file_name)
{
  // TODO: en parallèle, un seul PE doit effectuer la lecture.
  if (config_file_name.empty())
    return;
  std::cout << "TENTATIVE DE LECTURE DE LA CONFIGURATION " << config_file_name << "\n";
  if (!platform::isFileReadable(config_file_name))
    return;
  UniqueArray<std::byte> bytes;
  bool is_bad = platform::readAllFile(config_file_name, false, bytes);
  if (is_bad)
    return;
  ApplicationInfo& app_info(ArcaneLauncher::applicationInfo());
  app_info.setRuntimeConfigFileContent(bytes);
  JSONDocument jdoc;
  jdoc.parse(bytes);
  JSONValue config = jdoc.root().child("configuration");
  if (config.null())
    return;
  std::cout << "LECTURE DE LA CONFIGURATION\n";
  properties::readFromJSON<ApplicationInfo, ApplicationInfoProperties>(config, app_info);
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
int ArcaneLauncher::
run()
{
  return ArcaneMain::run();
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
ApplicationInfo& ArcaneLauncher::
applicationInfo()
{
  return ArcaneMain::defaultApplicationInfo();
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
DotNetRuntimeInitialisationInfo& ArcaneLauncher::
dotNetRuntimeInitialisationInfo()
{
  return ArcaneMain::defaultDotNetRuntimeInitialisationInfo();
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
AcceleratorRuntimeInitialisationInfo& ArcaneLauncher::
acceleratorRuntimeInitialisationInfo()
{
  return ArcaneMain::defaultAcceleratorRuntimeInitialisationInfo();
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
ApplicationBuildInfo& ArcaneLauncher::
applicationBuildInfo()
{
  return ArcaneMain::defaultApplicationBuildInfo();
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
String ArcaneLauncher::
getExeDirectory()
{
  String exe_full_path = platform::getExeFullPath();
  String exe_dir = platform::getFileDirName(exe_full_path);
  return exe_dir;
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
class DirectCodeFunctor
: public IFunctor
{
 public:
 
  typedef std::function<int(IDirectExecutionContext*)> OldFunctorType;
  typedef std::function<int(DirectExecutionContext&)> FunctorType;
 
 public:
 
  DirectCodeFunctor(ArcaneSimpleExecutor* x, FunctorType* ft)
  : m_simple_executor(x)
  , m_functor(ft)
  {}
  DirectCodeFunctor(ArcaneSimpleExecutor* x, OldFunctorType* ft)
  : m_simple_executor(x)
  , m_old_functor(ft)
  {}
  void executeFunctor() override
  {
    DirectExecutionContextImpl direct_context_impl(m_simple_executor);
    if (m_functor) {
      DirectExecutionContext direct_context(&direct_context_impl);
      m_return_value = (*m_functor)(direct_context);
    }
    else if (m_old_functor)
      m_return_value = (*m_old_functor)(&direct_context_impl);
  }
  int returnValue() const { return m_return_value; }
 
 public:
 
  ArcaneSimpleExecutor* m_simple_executor = nullptr;
  OldFunctorType* m_old_functor = nullptr;
  FunctorType* m_functor = nullptr;
  int m_return_value = 0;
};
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
// Obsolète
int ArcaneLauncher::
runDirect(std::function<int(IDirectExecutionContext* c)> func)
{
  if (_checkInitCalled())
    return (-1);
  int final_return = 0;
  {
    ArcaneSimpleExecutor simple_exec;
    int r = simple_exec.initialize();
    if (r != 0)
      return r;
    // Encapsule le code dans un functor qui va gérer les
    // exceptions. Sans cela, en cas d'exception et si le code
    // appelant ne fait rien on aura un appel à std::terminate
    DirectCodeFunctor direct_functor(&simple_exec, &func);
    simple_exec.runCode(&direct_functor);
    final_return = direct_functor.returnValue();
  }
  return final_return;
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
int ArcaneLauncher::
run(std::function<int(DirectExecutionContext&)> func)
{
  if (_checkInitCalled())
    return (-1);
 
  int final_return = 0;
  {
    ArcaneSimpleExecutor simple_exec;
    int r = simple_exec.initialize();
    if (r != 0)
      return r;
    // Encapsule le code dans un functor qui va gérer les
    // exceptions. Sans cela, en cas d'exception et si le code
    // appelant ne fait rien on aura un appel à std::terminate
    DirectCodeFunctor direct_functor(&simple_exec, &func);
    simple_exec.runCode(&direct_functor);
    final_return = direct_functor.returnValue();
  }
  return final_return;
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
class ArcaneLauncherDirectExecuteFunctor
: public IDirectSubDomainExecuteFunctor
{
 public:
 
  ArcaneLauncherDirectExecuteFunctor(std::function<int(DirectSubDomainExecutionContext&)> func)
  : m_function(func)
  {}
 
 public:
 
  int execute() override
  {
    if (!m_sub_domain)
      ARCANE_FATAL("Impossible d'exécuter 'IDirectSubDomainExecuteFunctor' sans sous-domaine");
    DirectSubDomainExecutionContext direct_context(m_sub_domain);
    return m_function(direct_context);
  }
  void setSubDomain(ISubDomain* sd) override { m_sub_domain = sd; }
 
 private:
 
  std::function<int(DirectSubDomainExecutionContext&)> m_function;
 
 public:
 
  ISubDomain* m_sub_domain = nullptr;
};
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
int ArcaneLauncher::
run(std::function<int(DirectSubDomainExecutionContext&)> func)
{
  if (_checkInitCalled())
    return (-1);
 
  ArcaneLauncherDirectExecuteFunctor direct_exec(func);
  // En exécution directe, par défaut il n'y a pas de fichier de configuration
  // du code. Si l'utilisateur n'a pas positionné de fichier de configuration,
  // alors on le positionne à la chaîne nulle.
  String config_file = applicationBuildInfo().configFileName();
  // Le défaut est la chaîne vide. La chaîne nulle indique explicitement qu'on
  // ne souhaite pas de fichier de configuration
  if (config_file.empty())
    applicationBuildInfo().setConfigFileName(String());
  int r = ArcaneMain::_internalRun(&direct_exec);
  return r;
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
namespace
{
  class MyVisitor
  : public properties::IPropertyVisitor
  {
   public:
 
    void visit(const properties::IPropertySetting* s) override
    {
      if (!s->commandLineArgument().null()) {
        std::cout << "ARG:" << std::setw(30) << s->commandLineArgument()
                  << "  " << s->description() << "\n";
      }
    }
  };
 
  void
  _listPropertySettings()
  {
    using namespace Arcane::properties;
    MyVisitor my_visitor;
    visitAllRegisteredProperties(&my_visitor);
  }
} // namespace
 
void ArcaneLauncher::
init(const CommandLineArguments& args)
{
  try {
    if (global_has_init_done)
      ARCANE_FATAL("ArcaneLauncher::init() a déjà été appelé");
    global_has_init_done = true;
    auto& application_info = applicationInfo();
    application_info.setCommandLineArguments(args);
    bool do_list = false;
    if (do_list)
      _listPropertySettings();
    const CommandLineArguments& cargs = applicationInfo().commandLineArguments();
    String runtime_config_file_name = cargs.getParameter("RuntimeConfigFile");
    if (!runtime_config_file_name.empty())
      _checkReadConfigFile(runtime_config_file_name);
    properties::readFromParameterList<ApplicationInfo, ApplicationInfoProperties>(args.parameters(), application_info);
    auto& dotnet_info = ArcaneLauncher::dotNetRuntimeInitialisationInfo();
    properties::readFromParameterList<DotNetRuntimeInitialisationInfo, DotNetRuntimeInitialisationInfoProperties>(args.parameters(), dotnet_info);
    auto& accelerator_info = ArcaneLauncher::acceleratorRuntimeInitialisationInfo();
    properties::readFromParameterList<AcceleratorRuntimeInitialisationInfo, Accelerator::AcceleratorRuntimeInitialisationInfoProperties>(args.parameters(), accelerator_info);
    ParallelLoopOptions loop_options;
    properties::readFromParameterList<ParallelLoopOptions, ParallelLoopOptionsProperties>(args.parameters(), loop_options);
    TaskFactory::setDefaultParallelLoopOptions(loop_options);
  }
  catch (const Exception& ex) {
    cerr << ex << '\n';
    cerr << "** (ArcaneLauncher) Impossible de continuer l'exécution.\n";
    throw;
  }
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
bool ArcaneLauncher::
isInitialized()
{
  return global_has_init_done;
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
void ArcaneLauncher::
setDefaultMainFactory(IMainFactory* mf)
{
  ArcaneMain::setDefaultMainFactory(mf);
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
void ArcaneLauncher::
_initStandalone()
{
  if (!global_has_init_done)
    ARCANE_FATAL("ArcaneLauncher::init() doit être appelé avant");
  // Ceci est nécessaire pour potentiellement charger dynamiquement le runtime associé
  // aux accélérateurs
  ArcaneMain::_initRuntimes();
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
StandaloneAcceleratorMng ArcaneLauncher::
createStandaloneAcceleratorMng()
{
  _initStandalone();
  return {};
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
StandaloneSubDomain ArcaneLauncher::
createStandaloneSubDomain(const String& case_file_name, Span<const std::byte> file_content)
{
  _initStandalone();
  StandaloneSubDomain s;
  s._initUniqueInstance(case_file_name, file_content);
  return s;
}
 
/*---------------------------------------------------------------------------*/
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void ArcaneLauncher::
_notifyRemoveStandaloneSubDomain()
{
}
 
/*---------------------------------------------------------------------------*/
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bool ArcaneLauncher::
needHelp()
{
  return applicationInfo().commandLineArguments().needHelp();
}
 
/*---------------------------------------------------------------------------*/
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bool ArcaneLauncher::
printHelp()
{
  if (applicationInfo().commandLineArguments().needHelp()) {
    GeneralHelp::printHelp();
    return true;
  }
  return false;
}
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
 
} // End namespace Arcane
 
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