Esempi in C++ (Cpp) per tile_b

Esempio n. 1

File: set_symmetric_difference.hpp Progetto: AbhinavJain13/turicreate

inline OutputIterator
set_symmetric_difference(InputIterator1 first1,
                         InputIterator1 last1,
                         InputIterator2 first2,
                         InputIterator2 last2,
                         OutputIterator result,
                         command_queue &queue = system::default_queue())
{
    typedef typename std::iterator_traits<InputIterator1>::value_type value_type;

    int tile_size = 1024;

    int count1 = detail::iterator_range_size(first1, last1);
    int count2 = detail::iterator_range_size(first2, last2);

    vector<uint_> tile_a((count1+count2+tile_size-1)/tile_size+1, queue.get_context());
    vector<uint_> tile_b((count1+count2+tile_size-1)/tile_size+1, queue.get_context());

    // Tile the sets
    detail::balanced_path_kernel tiling_kernel;
    tiling_kernel.tile_size = tile_size;
    tiling_kernel.set_range(first1, last1, first2, last2,
                            tile_a.begin()+1, tile_b.begin()+1);
    fill_n(tile_a.begin(), 1, 0, queue);
    fill_n(tile_b.begin(), 1, 0, queue);
    tiling_kernel.exec(queue);

    fill_n(tile_a.end()-1, 1, count1, queue);
    fill_n(tile_b.end()-1, 1, count2, queue);

    vector<value_type> temp_result(count1+count2, queue.get_context());
    vector<uint_> counts((count1+count2+tile_size-1)/tile_size + 1, queue.get_context());
    fill_n(counts.end()-1, 1, 0, queue);

    // Find individual symmetric differences
    detail::serial_set_symmetric_difference_kernel symmetric_difference_kernel;
    symmetric_difference_kernel.tile_size = tile_size;
    symmetric_difference_kernel.set_range(first1, first2, tile_a.begin(),
                                            tile_a.end(), tile_b.begin(),
                                            temp_result.begin(), counts.begin());

    symmetric_difference_kernel.exec(queue);

    exclusive_scan(counts.begin(), counts.end(), counts.begin(), queue);

    // Compact the results
    detail::compact_kernel compact_kernel;
    compact_kernel.tile_size = tile_size;
    compact_kernel.set_range(temp_result.begin(), counts.begin(), counts.end(), result);

    compact_kernel.exec(queue);

    return result + (counts.end() - 1).read(queue);
}

Esempio n. 2

File: merge_with_merge_path.hpp Progetto: Fantasticer/arangodb

inline OutputIterator
merge_with_merge_path(InputIterator1 first1,
                      InputIterator1 last1,
                      InputIterator2 first2,
                      InputIterator2 last2,
                      OutputIterator result,
                      Compare comp,
                      command_queue &queue = system::default_queue())
{
   typedef typename
       std::iterator_traits<OutputIterator>::difference_type result_difference_type;

    int tile_size = 1024;

    int count1 = iterator_range_size(first1, last1);
    int count2 = iterator_range_size(first2, last2);

    vector<uint_> tile_a((count1+count2+tile_size-1)/tile_size+1, queue.get_context());
    vector<uint_> tile_b((count1+count2+tile_size-1)/tile_size+1, queue.get_context());

    // Tile the sets
    merge_path_kernel tiling_kernel;
    tiling_kernel.tile_size = 1024;
    tiling_kernel.set_range(first1, last1, first2, last2,
                            tile_a.begin()+1, tile_b.begin()+1, comp);
    fill_n(tile_a.begin(), 1, 0, queue);
    fill_n(tile_b.begin(), 1, 0, queue);
    tiling_kernel.exec(queue);

    fill_n(tile_a.end()-1, 1, count1, queue);
    fill_n(tile_b.end()-1, 1, count2, queue);

    // Merge
    serial_merge_kernel merge_kernel;
    merge_kernel.tile_size = 1024;
    merge_kernel.set_range(first1, first2, tile_a.begin(), tile_a.end(),
                           tile_b.begin(), result, comp);

    merge_kernel.exec(queue);

    return result + static_cast<result_difference_type>(count1 + count2);
}

Esempio n. 3

File: includes.hpp Progetto: EdKeith/compute

inline bool includes(InputIterator1 first1,
                    InputIterator1 last1,
                    InputIterator2 first2,
                    InputIterator2 last2,
                    command_queue &queue = system::default_queue())
{
    typedef typename std::iterator_traits<InputIterator1>::value_type value_type;

    int tile_size = 1024;

    int count1 = detail::iterator_range_size(first1, last1);
    int count2 = detail::iterator_range_size(first2, last2);

    vector<uint_> tile_a((count1+count2+tile_size-1)/tile_size+1, queue.get_context());
    vector<uint_> tile_b((count1+count2+tile_size-1)/tile_size+1, queue.get_context());

    // Tile the sets
    detail::tile_sets_kernel tiling_kernel;
    tiling_kernel.tile_size = tile_size;
    tiling_kernel.set_range(first1, last1, first2, last2,
                            tile_a.begin()+1, tile_b.begin()+1);
    fill_n(tile_a.begin(), 1, 0, queue);
    fill_n(tile_b.begin(), 1, 0, queue);
    tiling_kernel.exec(queue);

    fill_n(tile_a.end()-1, 1, count1, queue);
    fill_n(tile_b.end()-1, 1, count2, queue);

    vector<uint_> result((count1+count2+tile_size-1)/tile_size, queue.get_context());

    // Find individually
    detail::serial_includes_kernel includes_kernel;
    includes_kernel.tile_size = tile_size;
    includes_kernel.set_range(first1, first2, tile_a.begin(), tile_a.end(),
                                tile_b.begin(), result.begin());

    includes_kernel.exec(queue);

    return find(result.begin(), result.end(), 0, queue) == result.end();
}