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warp_exchange.hpp

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29 

30 #ifndef HIPCUB_ROCPRIM_WARP_WARP_EXCHANGE_HPP_

31 #define HIPCUB_ROCPRIM_WARP_WARP_EXCHANGE_HPP_

32 

33 #include "../../../config.hpp"

34 #include "../util_type.hpp"

35 

36 #include <rocprim/warp/warp_exchange.hpp>

37 

38 BEGIN_HIPCUB_NAMESPACE

39 

40 template <

41  typename InputT,

42  int ITEMS_PER_THREAD,

43  int LOGICAL_WARP_THREADS = HIPCUB_DEVICE_WARP_THREADS,

44  int ARCH = HIPCUB_ARCH

45 >

46 class WarpExchange

47 {

48  using base_type = typename rocprim::warp_exchange<InputT, ITEMS_PER_THREAD, LOGICAL_WARP_THREADS>;

49 

50 public:

51  using TempStorage = typename base_type::storage_type;

52 

53 private:

54  TempStorage &temp_storage;

55 

56 public:

57  WarpExchange() = delete;

58 

59  explicit HIPCUB_DEVICE __forceinline__

60  WarpExchange(TempStorage &temp_storage) :

61  temp_storage(temp_storage)

62  {

63  }

64 

65  template <typename OutputT>

66  HIPCUB_DEVICE __forceinline__

67  void BlockedToStriped(

68  const InputT (&input_items)[ITEMS_PER_THREAD],

69  OutputT (&output_items)[ITEMS_PER_THREAD])

70  {

71  base_type rocprim_warp_exchange;

72  rocprim_warp_exchange.blocked_to_striped(input_items, output_items, temp_storage);

73  }

74 

75  template <typename OutputT>

76  HIPCUB_DEVICE __forceinline__

77  void StripedToBlocked(

78  const InputT (&input_items)[ITEMS_PER_THREAD],

79  OutputT (&output_items)[ITEMS_PER_THREAD])

80  {

81  base_type rocprim_warp_exchange;

82  rocprim_warp_exchange.striped_to_blocked(input_items, output_items, temp_storage);

83  }

84 

85  template <typename OffsetT>

86  HIPCUB_DEVICE __forceinline__

87  void ScatterToStriped(

88  InputT (&items)[ITEMS_PER_THREAD],

89  OffsetT (&ranks)[ITEMS_PER_THREAD])

90  {

91  ScatterToStriped(items, items, ranks);

92  }

93 

94  template <typename OutputT,

95  typename OffsetT>

96  HIPCUB_DEVICE __forceinline__

97  void ScatterToStriped(

98  const InputT (&input_items)[ITEMS_PER_THREAD],

99  OutputT (&output_items)[ITEMS_PER_THREAD],

100  OffsetT (&ranks)[ITEMS_PER_THREAD])

101  {

102  base_type rocprim_warp_exchange;

103  rocprim_warp_exchange.scatter_to_striped(input_items, output_items, ranks, temp_storage);

104  }

105 };

106 

107 END_HIPCUB_NAMESPACE

108 

109 #endif // HIPCUB_ROCPRIM_WARP_WARP_EXCHANGE_HPP_

hipcub::WarpExchange

Definition: warp_exchange.hpp:47