QUDA  v1.1.0
A library for QCD on GPUs
ptr.h
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1 /*
2 Copyright (c) 2013, NVIDIA Corporation
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27 
28 #pragma once
29 #include <trove/aos.h>
30 
31 namespace trove {
32 namespace detail {
33 
34 template<typename T>
35 struct coalesced_ref {
36  T* m_ptr;
37  __device__ explicit coalesced_ref(T* ptr) : m_ptr(ptr) {}
38 
39  __device__ operator T() {
40  return trove::load(m_ptr);
41  }
42  __device__ coalesced_ref& operator=(const T& data) {
43  trove::store(data, m_ptr);
44  return *this;
45  }
46 
47  __device__ coalesced_ref& operator=(const coalesced_ref& other) {
48  if (warp_converged()) {
49  T data = detail::load_dispatch(other.m_ptr);
51  } else {
52  T data = detail::divergent_load(other.m_ptr);
54  }
55  return *this;
56  }
57 };
58 }
59 
60 template<typename T>
61 struct coalesced_ptr {
62  T* m_ptr;
63  __device__ coalesced_ptr(T* ptr) : m_ptr(ptr) {}
64  __device__ coalesced_ptr() : m_ptr(nullptr) {}
67  }
68  template<typename I>
69  __device__ trove::detail::coalesced_ref<T> operator[](const I& idx) {
71  }
72  __device__ operator T*() {
73  return m_ptr;
74  }
75 };
76 
77 
78 
79 
80 
81 }
Definition: alias.h:4
__device__ enable_if< use_divergent< T >::value, T >::type divergent_load(const T *src)
Definition: fallback.h:70
__device__ enable_if< use_shfl< T >::value >::type store_dispatch(const T &data, T *dest)
Definition: aos.h:232
__device__ enable_if< use_shfl< T >::value, T >::type load_dispatch(const T *src)
Definition: aos.h:207
__device__ enable_if< use_divergent< T >::value >::type divergent_store(const T &data, T *dest)
Definition: fallback.h:116
Definition: aos.h:38
__device__ void store(const T &data, T *dest)
Definition: aos.h:265
__device__ bool warp_converged()
Definition: warp.h:35
__device__ T load(const T *src)
Definition: aos.h:256
__device__ trove::detail::coalesced_ref< T > operator*()
Definition: ptr.h:65
__device__ trove::detail::coalesced_ref< T > operator[](const I &idx)
Definition: ptr.h:69
__device__ coalesced_ptr(T *ptr)
Definition: ptr.h:63
__device__ coalesced_ptr()
Definition: ptr.h:64
__device__ coalesced_ref(T *ptr)
Definition: ptr.h:37
__device__ coalesced_ref & operator=(const coalesced_ref &other)
Definition: ptr.h:47
__device__ coalesced_ref & operator=(const T &data)
Definition: ptr.h:42