projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | //---------------------------------------------------------------------------// |
| 2 | // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com> | |
| 3 | // | |
| 4 | // Distributed under the Boost Software License, Version 1.0 | |
| 5 | // See accompanying file LICENSE_1_0.txt or copy at | |
| 6 | // http://www.boost.org/LICENSE_1_0.txt | |
| 7 | // | |
| 8 | // See http://boostorg.github.com/compute for more information. | |
| 9 | //---------------------------------------------------------------------------// | |
| 10 | ||
| 11 | #ifndef BOOST_COMPUTE_ALGORITHM_DETAIL_SERIAL_ACCUMULATE_HPP | |
| 12 | #define BOOST_COMPUTE_ALGORITHM_DETAIL_SERIAL_ACCUMULATE_HPP | |
| 13 | ||
| 14 | #include <boost/compute/command_queue.hpp> | |
| 15 | #include <boost/compute/detail/meta_kernel.hpp> | |
| 16 | #include <boost/compute/detail/iterator_range_size.hpp> | |
| 17 | ||
| 18 | namespace boost { | |
| 19 | namespace compute { | |
| 20 | namespace detail { | |
| 21 | ||
| 22 | template<class InputIterator, class OutputIterator, class T, class BinaryFunction> | |
| 23 | inline void serial_accumulate(InputIterator first, | |
| 24 | InputIterator last, | |
| 25 | OutputIterator result, | |
| 26 | T init, | |
| 27 | BinaryFunction function, | |
| 28 | command_queue &queue) | |
| 29 | { | |
| 30 | const context &context = queue.get_context(); | |
| 31 | size_t count = detail::iterator_range_size(first, last); | |
| 32 | ||
| 33 | meta_kernel k("serial_accumulate"); | |
| 34 | size_t init_arg = k.add_arg<T>("init"); | |
| 35 | size_t count_arg = k.add_arg<cl_uint>("count"); | |
| 36 | ||
| 37 | k << | |
| 38 | k.decl<T>("result") << " = init;\n" << | |
| 39 | "for(uint i = 0; i < count; i++)\n" << | |
| 40 | " result = " << function(k.var<T>("result"), | |
| 41 | first[k.var<cl_uint>("i")]) << ";\n" << | |
| 42 | result[0] << " = result;\n"; | |
| 43 | ||
| 44 | kernel kernel = k.compile(context); | |
| 45 | ||
| 46 | kernel.set_arg(init_arg, init); | |
| 47 | kernel.set_arg(count_arg, static_cast<cl_uint>(count)); | |
| 48 | ||
| 49 | queue.enqueue_task(kernel); | |
| 50 | } | |
| 51 | ||
| 52 | } // end detail namespace | |
| 53 | } // end compute namespace | |
| 54 | } // end boost namespace | |
| 55 | ||
| 56 | #endif // BOOST_COMPUTE_ALGORITHM_DETAIL_SERIAL_ACCUMULATE_HPP |