core/RunCommandLaunchInfo.h

// -*- 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
//-----------------------------------------------------------------------------
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/* RunCommandLaunchInfo.h                                      (C) 2000-2025 */
/*                                                                           */
/* Informations pour l'exécution d'une 'RunCommand'.                         */
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#ifndef ARCANE_ACCELERATOR_CORE_RUNCOMMANDLAUNCHINFO_H
#define ARCANE_ACCELERATOR_CORE_RUNCOMMANDLAUNCHINFO_H
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#include "arcane/utils/ConcurrencyUtils.h"
 
#include "arcane/accelerator/core/KernelLaunchArgs.h"
 
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namespace Arcane::Accelerator::impl
{
 
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class ARCANE_ACCELERATOR_CORE_EXPORT RunCommandLaunchInfo
{
  // Les fonctions suivantes permettent de lancer les kernels.
  template <typename SyclKernel, typename Lambda, typename LambdaArgs, typename... ReducerArgs>
  friend void _applyKernelSYCL(impl::RunCommandLaunchInfo& launch_info, SyclKernel kernel, Lambda& func,
                               const LambdaArgs& args, const ReducerArgs&... reducer_args);
  template <typename CudaKernel, typename Lambda, typename LambdaArgs, typename... RemainingArgs>
  friend void _applyKernelCUDA(impl::RunCommandLaunchInfo& launch_info, const CudaKernel& kernel, Lambda& func,
                               const LambdaArgs& args, [[maybe_unused]] const RemainingArgs&... other_args);
  template <typename HipKernel, typename Lambda, typename LambdaArgs, typename... RemainingArgs>
  friend void _applyKernelHIP(impl::RunCommandLaunchInfo& launch_info, const HipKernel& kernel, const Lambda& func,
                              const LambdaArgs& args, [[maybe_unused]] const RemainingArgs&... other_args);
 
 public:
 
  using ThreadBlockInfo = KernelLaunchArgs;
 
 public:
 
  RunCommandLaunchInfo(RunCommand& command, Int64 total_loop_size);
  ~RunCommandLaunchInfo();
  RunCommandLaunchInfo(const RunCommandLaunchInfo&) = delete;
  RunCommandLaunchInfo operator=(const RunCommandLaunchInfo&) = delete;
 
 public:
 
  eExecutionPolicy executionPolicy() const { return m_exec_policy; }

  void beginExecute();

  void endExecute();

  KernelLaunchArgs kernelLaunchArgs() const { return m_kernel_launch_args; }

  ParallelLoopOptions computeParallelLoopOptions() const;

  const ForLoopRunInfo& loopRunInfo() const { return m_loop_run_info; }

  Int64 totalLoopSize() const { return m_total_loop_size; }
 
 private:
 
  RunCommand& m_command;
  bool m_has_exec_begun = false;
  bool m_is_notify_end_kernel_done = false;
  eExecutionPolicy m_exec_policy = eExecutionPolicy::Sequential;
  KernelLaunchArgs m_kernel_launch_args;
  ForLoopRunInfo m_loop_run_info;
  Int64 m_total_loop_size = 0;
  impl::RunQueueImpl* m_queue_impl = nullptr;
 
 private:
 
  KernelLaunchArgs _threadBlockInfo(const void* func, Int32 shared_memory_size) const;
  NativeStream _internalNativeStream();
  void _doEndKernelLaunch();
  KernelLaunchArgs _computeKernelLaunchArgs() const;
 
 private:
 
  void _computeLoopRunInfo();
 
  // Pour SYCL: enregistre l'évènement associé à la dernière commande de la file
  // \a sycl_event_ptr est de type 'sycl::event*'.
  void _addSyclEvent(void* sycl_event_ptr);
};
 
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} // End namespace Arcane::Accelerator::impl
 
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#endif