49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
//---------------------------------------------------------------------------//
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// Copyright (c) 2014 Roshan <thisisroshansmail@gmail.com>
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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// See http://boostorg.github.com/compute for more information.
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//---------------------------------------------------------------------------//
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#include <algorithm>
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#include <iostream>
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#include <vector>
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#include <boost/compute/system.hpp>
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#include <boost/compute/container/vector.hpp>
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#include <boost/compute/random/default_random_engine.hpp>
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#include <boost/compute/random/discrete_distribution.hpp>
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#include "perf.hpp"
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namespace compute = boost::compute;
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int main(int argc, char *argv[])
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{
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perf_parse_args(argc, argv);
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std::cout << "size: " << PERF_N << std::endl;
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compute::device device = compute::system::default_device();
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compute::context context(device);
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compute::command_queue queue(context, device);
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compute::vector<compute::uint_> vector(PERF_N, context);
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int weights[] = {1, 1};
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compute::default_random_engine rng(queue);
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compute::discrete_distribution<compute::uint_> dist(weights, weights+2);
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perf_timer t;
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t.start();
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dist.generate(vector.begin(), vector.end(), rng, queue);
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queue.finish();
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t.stop();
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std::cout << "time: " << t.min_time() / 1e6 << " ms" << std::endl;
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return 0;
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}
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