Kokkos_MemoryTraits.hpp

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//                             Kokkos
//         Manycore Performance-Portable Multidimensional Arrays
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#ifndef KOKKOS_MEMORYTRAITS_HPP
#define KOKKOS_MEMORYTRAITS_HPP

#include <impl/Kokkos_Traits.hpp>
#include <impl/Kokkos_Tags.hpp>

//----------------------------------------------------------------------------

namespace Kokkos {

enum MemoryTraitsFlags
  { Unmanaged  = 0x01
  , RandomAccess = 0x02
  , Atomic = 0x04
  };

template < unsigned T >
struct MemoryTraits {
  typedef Impl::MemoryTraitsTag       kokkos_tag ;

  enum { Unmanaged  = T & unsigned(Kokkos::Unmanaged) };
  enum { RandomAccess = T & unsigned(Kokkos::RandomAccess) };
  enum { Atomic = T & unsigned(Kokkos::Atomic) };

  typedef MemoryTraits memory_traits ;
};

} // namespace Kokkos

//----------------------------------------------------------------------------

namespace Kokkos {

typedef Kokkos::MemoryTraits<0> MemoryManaged ;
typedef Kokkos::MemoryTraits< Kokkos::Unmanaged > MemoryUnmanaged ;
typedef Kokkos::MemoryTraits< Kokkos::Unmanaged | Kokkos::RandomAccess > MemoryRandomAccess ;

} // namespace Kokkos

//----------------------------------------------------------------------------

namespace Kokkos {
namespace Impl {

enum { MEMORY_ALIGNMENT =
#if defined( KOKKOS_MEMORY_ALIGNMENT )
    ( 1 << Kokkos::Impl::power_of_two< KOKKOS_MEMORY_ALIGNMENT >::value )
#else
    ( 1 << Kokkos::Impl::power_of_two< 128 >::value )
#endif
  , MEMORY_ALIGNMENT_THRESHOLD = 4 
  };


} //namespace Impl
} // namespace Kokkos

#endif /* #ifndef KOKKOS_MEMORYTRAITS_HPP */