Kokkos_Qthread.hpp

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//   Kokkos: Manycore Performance-Portable Multidimensional Arrays
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#ifndef KOKKOS_QTHREAD_HPP
#define KOKKOS_QTHREAD_HPP

#include <cstddef>
#include <iosfwd>
#include <Kokkos_Core.hpp>
#include <Kokkos_Layout.hpp>
#include <Kokkos_MemoryTraits.hpp>
#include <Kokkos_HostSpace.hpp>
#include <Kokkos_ExecPolicy.hpp>
#include <impl/Kokkos_Tags.hpp>

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

namespace Kokkos {
namespace Impl {
class QthreadExec ;
} // namespace Impl
} // namespace Kokkos

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

namespace Kokkos {

class Qthread {
public:


  typedef Impl::ExecutionSpaceTag  kokkos_tag ;

  typedef Qthread                  device_type ;
  typedef Qthread                  execution_space ;
  typedef Kokkos::HostSpace        memory_space ;
  typedef Qthread                  scratch_memory_space ;
  typedef memory_space::size_type  size_type ;
  typedef Kokkos::LayoutRight      array_layout ;
  typedef Kokkos::Qthread          host_mirror_device_type ;

  /*------------------------------------------------------------------------*/
  static Qthread & instance( int = 0 );

  bool sleep();

  static bool wake();

  static void fence();

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

  Qthread( Impl::QthreadExec & e ) : m_exec(e) {}

  void * get_shmem( const int ) const ;

  static int team_recommended();
  static int team_max();

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

  static void initialize( int thread_count );
  static void finalize();

  static void print_configuration( std::ostream & , const bool detail = false );

  int shepherd_size() const ;
  int shepherd_worker_size() const ;

private:

  friend class Impl::QthreadExec ;

  Impl::QthreadExec & m_exec ;

};

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

} // namespace Kokkos

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

#include <Kokkos_Parallel.hpp>
#include <Qthread/Kokkos_QthreadExec.hpp>
#include <Qthread/Kokkos_Qthread_Parallel.hpp>

#endif /* #define KOKKOS_QTHREAD_HPP */

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