/*
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//                        Kokkos v. 3.0
//       Copyright (2020) National Technology & Engineering
//               Solutions of Sandia, LLC (NTESS).
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#ifndef KOKKOS_OPENMPTARGET_HPP
#define KOKKOS_OPENMPTARGET_HPP

#include <Kokkos_Core_fwd.hpp>

#if defined(KOKKOS_ENABLE_OPENMPTARGET) && defined(_OPENMP)

#include <omp.h>

#include <cstddef>
#include <iosfwd>
#include <Kokkos_OpenMPTargetSpace.hpp>
#include <Kokkos_ScratchSpace.hpp>
#include <Kokkos_Parallel.hpp>
#include <Kokkos_TaskPolicy.hpp>
#include <Kokkos_Layout.hpp>
#include <impl/Kokkos_Tags.hpp>
#include <impl/Kokkos_Profiling_Interface.hpp>
#include <KokkosExp_MDRangePolicy.hpp>
/*--------------------------------------------------------------------------*/

namespace Kokkos {
namespace Experimental {
namespace Impl {
class OpenMPTargetInternal;
}

/// \class OpenMPTarget
/// \brief Kokkos device for multicore processors in the host memory space.
class OpenMPTarget {
 public:
  //------------------------------------
  //! \name Type declarations that all Kokkos devices must provide.
  //@{

  //! Tag this class as a kokkos execution space
  typedef OpenMPTarget execution_space;
  typedef OpenMPTargetSpace memory_space;
  //! This execution space preferred device_type
  typedef Kokkos::Device<execution_space, memory_space> device_type;

  typedef LayoutLeft array_layout;
  typedef memory_space::size_type size_type;

  typedef ScratchMemorySpace<OpenMPTarget> scratch_memory_space;

  inline static bool in_parallel() { return omp_in_parallel(); }

  static void fence();

  /** \brief  Return the maximum amount of concurrency.  */
  static int concurrency();

  //! Print configuration information to the given output stream.
  void print_configuration(std::ostream&, const bool detail = false);

  static const char* name();

  //! Free any resources being consumed by the device.
  void impl_finalize();

  //! Has been initialized
  static int impl_is_initialized();

  //! Initialize, telling the CUDA run-time library which device to use.
  void impl_initialize();

  inline Impl::OpenMPTargetInternal* impl_internal_space_instance() const {
    return m_space_instance;
  }

  OpenMPTarget();
  uint32_t impl_instance_id() const noexcept { return 0; }

 private:
  Impl::OpenMPTargetInternal* m_space_instance;
};
}  // namespace Experimental

namespace Profiling {
namespace Experimental {
template <>
struct DeviceTypeTraits<::Kokkos::Experimental::OpenMPTarget> {
  static constexpr DeviceType id =
      ::Kokkos::Profiling::Experimental::DeviceType::OpenMPTarget;
};
}  // namespace Experimental
}  // namespace Profiling
}  // namespace Kokkos

/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/

namespace Kokkos {
namespace Impl {

template <>
struct VerifyExecutionCanAccessMemorySpace<
    Kokkos::Experimental::OpenMPTarget::memory_space,
    Kokkos::Experimental::OpenMPTarget::scratch_memory_space> {
  enum { value = true };
  inline static void verify(void) {}
  inline static void verify(const void*) {}
};

}  // namespace Impl
}  // namespace Kokkos

/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/

#include <OpenMPTarget/Kokkos_OpenMPTarget_Exec.hpp>
#include <OpenMPTarget/Kokkos_OpenMPTarget_Parallel.hpp>
#include <OpenMPTarget/Kokkos_OpenMPTarget_Parallel_MDRange.hpp>
#include <OpenMPTarget/Kokkos_OpenMPTarget_Task.hpp>

/*--------------------------------------------------------------------------*/

#endif /* #if defined( KOKKOS_ENABLE_OPENMPTARGET ) && defined( _OPENMP ) */
#endif /* #ifndef KOKKOS_OPENMPTARGET_HPP */
