QUDA  v1.1.0
A library for QCD on GPUs
shfl.h
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1 /*
2 Copyright (c) 2013, NVIDIA Corporation
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27 
28 #pragma once
29 
30 #if 0
31 #include <trove/array.h>
32 #include <trove/detail/dismember.h>
33 
34 
35 namespace trove {
36 namespace detail {
37 
38 template<int s>
39 struct shuffle {
40  __device__
41  static void impl(array<int, s>& d, const int& i) {
42  d.head = __shfl(d.head, i);
43  shuffle<s-1>::impl(d.tail, i);
44  }
45 };
46 
47 template<>
48 struct shuffle<1> {
49  __device__
50  static void impl(array<int, 1>& d, const int& i) {
51  d.head = __shfl(d.head, i);
52  }
53 };
54 
55 }
56 }
57 
58 template<typename T>
59 __device__
60 T __shfl(const T& t, const int& i) {
61  typedef trove::array<int,
63  lysed_array;
64  lysed_array lysed = trove::detail::lyse<int>(t);
65  trove::detail::shuffle<lysed_array::size>
66  ::impl(lysed, i);
67  return trove::detail::fuse<T>(lysed);
68 }
69 
70 #else
71 
72 #include <generics/shfl.h>
73 
74 #endif
__device__ __forceinline__ T __shfl(const T &t, const int &i)
Definition: shfl.h:214
Definition: alias.h:4
Definition: aos.h:38