Point Cloud Library (PCL)  1.8.0
emulation.hpp
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34 * Author: Anatoly Baskeheev, Itseez Ltd, (myname.mysurname@mycompany.com)
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36 
37 #ifndef PCL_GPU_DEVICE_EMULATION_HPP_
38 #define PCL_GPU_DEVICE_EMULATION_HPP_
39 
40 #include <pcl/gpu/device/warp_reduce.hpp>
41 
42 namespace pcl
43 {
44  namespace device
45  {
46  struct Emulation
47  {
48  static __forceinline__ __device__ int ballot(int predicate, volatile int* cta_buffer)
49  {
50 #if __CUDA_ARCH__ >= 200
51  (void)cta_buffer;
52  return __ballot(predicate);
53 #else
54  int tid = threadIdx.x;
55  cta_buffer[tid] = predicate ? (1 << (tid & 31)) : 0;
56  return warp_reduce(cta_buffer);
57 #endif
58  }
59  };
60  }
61 }
62 
63 #endif /* PCL_GPU_DEVICE_EMULATION_HPP_ */
static __forceinline__ __device__ int ballot(int predicate, volatile int *cta_buffer)
Definition: emulation.hpp:48
static __device__ __forceinline__ int warp_reduce(volatile int *ptr, const unsigned int tid)
Definition: utils.hpp:585