FM / detail

/usr/include/boost/compute/algorithm/detail/

/usr/include/boost/compute/algorithm/detail

Name	Size	Mode	Actions
balanced_path.hpp	6267	0644	edit dl rm
binary_find.hpp	4626	0644	edit dl rm
compact.hpp	2188	0644	edit dl rm
copy_on_device.hpp	7382	0644	edit dl rm
copy_to_device.hpp	6731	0644	edit dl rm
copy_to_host.hpp	6658	0644	edit dl rm
count_if_with_ballot.hpp	2605	0644	edit dl rm
count_if_with_reduce.hpp	2648	0644	edit dl rm
count_if_with_threads.hpp	4241	0644	edit dl rm
find_extrema.hpp	2441	0644	edit dl rm
find_extrema_on_cpu.hpp	5333	0644	edit dl rm
find_extrema_with_atomics.hpp	4251	0644	edit dl rm
find_extrema_with_reduce.hpp	18672	0644	edit dl rm
find_if_with_atomics.hpp	8509	0644	edit dl rm
inplace_reduce.hpp	4839	0644	edit dl rm
insertion_sort.hpp	6030	0644	edit dl rm
merge_path.hpp	3874	0644	edit dl rm
merge_sort_on_cpu.hpp	14654	0644	edit dl rm
merge_sort_on_gpu.hpp	22093	0644	edit dl rm
merge_with_merge_path.hpp	7339	0644	edit dl rm
radix_sort.hpp	15502	0644	edit dl rm
random_fill.hpp	1880	0644	edit dl rm
reduce_by_key.hpp	5243	0644	edit dl rm
reduce_by_key_with_scan.hpp	23735	0644	edit dl rm
reduce_on_cpu.hpp	3949	0644	edit dl rm
reduce_on_gpu.hpp	10391	0644	edit dl rm
scan.hpp	1545	0644	edit dl rm
scan_on_cpu.hpp	7056	0644	edit dl rm
scan_on_gpu.hpp	11320	0644	edit dl rm
search_all.hpp	2579	0644	edit dl rm
serial_accumulate.hpp	1990	0644	edit dl rm
serial_count_if.hpp	2243	0644	edit dl rm
serial_find_extrema.hpp	3151	0644	edit dl rm
serial_merge.hpp	3504	0644	edit dl rm
serial_reduce.hpp	2145	0644	edit dl rm
serial_reduce_by_key.hpp	4240	0644	edit dl rm
serial_scan.hpp	3184	0644	edit dl rm

Edit: /usr/include/boost/compute/algorithm/detail/find_extrema.hpp (2441B)

//---------------------------------------------------------------------------//
// 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_DETAIL_FIND_EXTREMA_HPP
#define BOOST_COMPUTE_ALGORITHM_DETAIL_FIND_EXTREMA_HPP

#include <boost/compute/detail/iterator_range_size.hpp>
#include <boost/compute/algorithm/detail/find_extrema_on_cpu.hpp>
#include <boost/compute/algorithm/detail/find_extrema_with_reduce.hpp>
#include <boost/compute/algorithm/detail/find_extrema_with_atomics.hpp>
#include <boost/compute/algorithm/detail/serial_find_extrema.hpp>

namespace boost {
namespace compute {
namespace detail {

template<class InputIterator, class Compare>
inline InputIterator find_extrema(InputIterator first,
                                  InputIterator last,
                                  Compare compare,
                                  const bool find_minimum,
                                  command_queue &queue)
{
    size_t count = iterator_range_size(first, last);

// handle trivial cases
    if(count == 0 || count == 1){
        return first;
    }

const device &device = queue.get_device();

// CPU
    if(device.type() & device::cpu) {
        return find_extrema_on_cpu(first, last, compare, find_minimum, queue);
    }

// GPU
    // use serial method for small inputs
    if(count < 512)
    {
        return serial_find_extrema(first, last, compare, find_minimum, queue);
    }
    // find_extrema_with_reduce() is used only if requirements are met
    if(find_extrema_with_reduce_requirements_met(first, last, queue))
    {
        return find_extrema_with_reduce(first, last, compare, find_minimum, queue);
    }

// use serial method for OpenCL version 1.0 due to
    // problems with atomic_cmpxchg()
    #ifndef BOOST_COMPUTE_CL_VERSION_1_1
        return serial_find_extrema(first, last, compare, find_minimum, queue);
    #endif

return find_extrema_with_atomics(first, last, compare, find_minimum, queue);
}

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

#endif // BOOST_COMPUTE_ALGORITHM_DETAIL_FIND_EXTREMA_HPP

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