FM / algorithm

/usr/include/boost/compute/algorithm

Name	Size	Mode	Actions
detail/	-	0755	rm
accumulate.hpp	6375	0644	edit dl rm
adjacent_difference.hpp	4416	0644	edit dl rm
adjacent_find.hpp	5313	0644	edit dl rm
all_of.hpp	1427	0644	edit dl rm
any_of.hpp	1544	0644	edit dl rm
binary_search.hpp	1480	0644	edit dl rm
copy.hpp	31483	0644	edit dl rm
copy_if.hpp	2574	0644	edit dl rm
copy_n.hpp	1940	0644	edit dl rm
count.hpp	2103	0644	edit dl rm
count_if.hpp	2388	0644	edit dl rm
equal.hpp	2209	0644	edit dl rm
equal_range.hpp	1636	0644	edit dl rm
exclusive_scan.hpp	4042	0644	edit dl rm
fill.hpp	10030	0644	edit dl rm
fill_n.hpp	1367	0644	edit dl rm
find.hpp	2004	0644	edit dl rm
find_end.hpp	4772	0644	edit dl rm
find_if.hpp	1504	0644	edit dl rm
find_if_not.hpp	1652	0644	edit dl rm
for_each.hpp	2131	0644	edit dl rm
for_each_n.hpp	1423	0644	edit dl rm
gather.hpp	2796	0644	edit dl rm
generate.hpp	1903	0644	edit dl rm
generate_n.hpp	1277	0644	edit dl rm
includes.hpp	5615	0644	edit dl rm
inclusive_scan.hpp	3402	0644	edit dl rm
inner_product.hpp	3849	0644	edit dl rm
inplace_merge.hpp	2047	0644	edit dl rm
iota.hpp	1735	0644	edit dl rm
is_partitioned.hpp	1785	0644	edit dl rm
is_permutation.hpp	2744	0644	edit dl rm
is_sorted.hpp	2436	0644	edit dl rm
lexicographical_compare.hpp	4950	0644	edit dl rm
lower_bound.hpp	1573	0644	edit dl rm
max_element.hpp	2781	0644	edit dl rm
merge.hpp	5037	0644	edit dl rm
minmax_element.hpp	2668	0644	edit dl rm
min_element.hpp	2780	0644	edit dl rm
mismatch.hpp	3409	0644	edit dl rm
next_permutation.hpp	5703	0644	edit dl rm
none_of.hpp	1426	0644	edit dl rm
nth_element.hpp	2868	0644	edit dl rm
partial_sum.hpp	1676	0644	edit dl rm
partition.hpp	1523	0644	edit dl rm
partition_copy.hpp	2592	0644	edit dl rm
partition_point.hpp	1858	0644	edit dl rm
prev_permutation.hpp	5695	0644	edit dl rm
random_shuffle.hpp	3010	0644	edit dl rm
reduce.hpp	11454	0644	edit dl rm
reduce_by_key.hpp	5933	0644	edit dl rm
remove.hpp	2002	0644	edit dl rm
remove_if.hpp	1850	0644	edit dl rm
replace.hpp	2588	0644	edit dl rm
replace_copy.hpp	2230	0644	edit dl rm
reverse.hpp	2438	0644	edit dl rm
reverse_copy.hpp	2678	0644	edit dl rm
rotate.hpp	1813	0644	edit dl rm
rotate_copy.hpp	1529	0644	edit dl rm
scatter.hpp	3435	0644	edit dl rm
scatter_if.hpp	4730	0644	edit dl rm
search.hpp	2967	0644	edit dl rm
search_n.hpp	4428	0644	edit dl rm
set_difference.hpp	6941	0644	edit dl rm
set_intersection.hpp	6646	0644	edit dl rm
set_symmetric_difference.hpp	7533	0644	edit dl rm
set_union.hpp	7384	0644	edit dl rm
sort.hpp	6569	0644	edit dl rm
sort_by_key.hpp	6156	0644	edit dl rm
stable_partition.hpp	2737	0644	edit dl rm
stable_sort.hpp	3809	0644	edit dl rm
stable_sort_by_key.hpp	6071	0644	edit dl rm
swap_ranges.hpp	1870	0644	edit dl rm
transform.hpp	3252	0644	edit dl rm
transform_if.hpp	4737	0644	edit dl rm
transform_reduce.hpp	3683	0644	edit dl rm
unique.hpp	2565	0644	edit dl rm
unique_copy.hpp	6429	0644	edit dl rm
upper_bound.hpp	1561	0644	edit dl rm

Edit: /usr/include/boost/compute/algorithm/scatter.hpp (3435B)

//---------------------------------------------------------------------------//
// Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
//
// Distributed under the Boost Software License, Version 1.0
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
//
// See http://boostorg.github.com/compute for more information.
//---------------------------------------------------------------------------//

#ifndef BOOST_COMPUTE_ALGORITHM_SCATTER_HPP
#define BOOST_COMPUTE_ALGORITHM_SCATTER_HPP

#include <boost/static_assert.hpp>
#include <boost/algorithm/string/replace.hpp>

#include <boost/compute/system.hpp>
#include <boost/compute/exception.hpp>
#include <boost/compute/command_queue.hpp>
#include <boost/compute/iterator/buffer_iterator.hpp>
#include <boost/compute/type_traits/type_name.hpp>
#include <boost/compute/detail/iterator_range_size.hpp>
#include <boost/compute/detail/meta_kernel.hpp>
#include <boost/compute/type_traits/is_device_iterator.hpp>

namespace boost {
namespace compute {
namespace detail {

template<class InputIterator, class MapIterator, class OutputIterator>
class scatter_kernel : meta_kernel
{
public:
    scatter_kernel() : meta_kernel("scatter")
    {}

void set_range(InputIterator first,
                   InputIterator last,
                   MapIterator map,
                   OutputIterator result)
    {
        m_count = iterator_range_size(first, last);
        m_input_offset = first.get_index();
        m_output_offset = result.get_index();

m_input_offset_arg = add_arg<uint_>("input_offset");
        m_output_offset_arg = add_arg<uint_>("output_offset");

*this <<
            "const uint i = get_global_id(0);\n" <<
            "uint i1 = " << map[expr<uint_>("i")] << 
                " + output_offset;\n" <<
            "uint i2 = i + input_offset;\n" <<
            result[expr<uint_>("i1")] << "=" << 
                first[expr<uint_>("i2")] << ";\n";
    }

event exec(command_queue &queue)
    {
        if(m_count == 0) {
            return event();
        }

set_arg(m_input_offset_arg, uint_(m_input_offset));
        set_arg(m_output_offset_arg, uint_(m_output_offset));

return exec_1d(queue, 0, m_count);
    }

private:
    size_t m_count;
    size_t m_input_offset;    
    size_t m_input_offset_arg;    
    size_t m_output_offset;    
    size_t m_output_offset_arg;    
};

} // end detail namespace

/// Copies the elements from the range [\p first, \p last) to the range
/// beginning at \p result using the output indices from the range beginning
/// at \p map.
///
/// Space complexity: \Omega(1)
///
/// \see gather()
template<class InputIterator, class MapIterator, class OutputIterator>
inline void scatter(InputIterator first,
                    InputIterator last,
                    MapIterator map,
                    OutputIterator result,
                    command_queue &queue = system::default_queue())
{
    BOOST_STATIC_ASSERT(is_device_iterator<InputIterator>::value);
    BOOST_STATIC_ASSERT(is_device_iterator<MapIterator>::value);
    BOOST_STATIC_ASSERT(is_device_iterator<OutputIterator>::value);

detail::scatter_kernel<InputIterator, MapIterator, OutputIterator> kernel;
    
    kernel.set_range(first, last, map, result);
    kernel.exec(queue);
}

} // end compute namespace
} // end boost namespace

#endif // BOOST_COMPUTE_ALGORITHM_SCATTER_HPP

//---------------------------------------------------------------------------// // Copyright (c) 2013 Kyle Lutz // // Distributed under the Boost Software License, Version 1.0 // See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt // // See http://boostorg.github.com/compute for more information. //---------------------------------------------------------------------------// #ifndef BOOST_COMPUTE_ALGORITHM_SCATTER_HPP #define BOOST_COMPUTE_ALGORITHM_SCATTER_HPP #include #include #include #include #include #include #include #include #include #include namespace boost { namespace compute { namespace detail { template class scatter_kernel : meta_kernel { public: scatter_kernel() : meta_kernel("scatter") {} void set_range(InputIterator first, InputIterator last, MapIterator map, OutputIterator result) { m_count = iterator_range_size(first, last); m_input_offset = first.get_index(); m_output_offset = result.get_index(); m_input_offset_arg = add_arg("input_offset"); m_output_offset_arg = add_arg("output_offset"); *this << "const uint i = get_global_id(0);\n" << "uint i1 = " << map[expr("i")] << " + output_offset;\n" << "uint i2 = i + input_offset;\n" << result[expr("i1")] << "=" << first[expr("i2")] << ";\n"; } event exec(command_queue &queue) { if(m_count == 0) { return event(); } set_arg(m_input_offset_arg, uint_(m_input_offset)); set_arg(m_output_offset_arg, uint_(m_output_offset)); return exec_1d(queue, 0, m_count); } private: size_t m_count; size_t m_input_offset; size_t m_input_offset_arg; size_t m_output_offset; size_t m_output_offset_arg; }; } // end detail namespace /// Copies the elements from the range [\p first, \p last) to the range /// beginning at \p result using the output indices from the range beginning /// at \p map. /// /// Space complexity: \Omega(1) /// /// \see gather() template inline void scatter(InputIterator first, InputIterator last, MapIterator map, OutputIterator result, command_queue &queue = system::default_queue()) { BOOST_STATIC_ASSERT(is_device_iterator::value); BOOST_STATIC_ASSERT(is_device_iterator::value); BOOST_STATIC_ASSERT(is_device_iterator::value); detail::scatter_kernel kernel; kernel.set_range(first, last, map, result); kernel.exec(queue); } } // end compute namespace } // end boost namespace #endif // BOOST_COMPUTE_ALGORITHM_SCATTER_HPP