GOSTCoin CUDA miner project, compatible with most nvidia cards, containing only gostd algo
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/*
* Copyright 2008-2012 NVIDIA Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <thrust/detail/config.h>
#include <thrust/detail/cstdint.h>
#include <thrust/system/cuda/detail/detail/set_operation.h>
namespace thrust
{
namespace system
{
namespace cuda
{
namespace detail
{
namespace set_difference_detail
{
struct serial_bounded_set_difference
{
// max_input_size <= 32
template<typename Size, typename InputIterator1, typename InputIterator2, typename OutputIterator, typename Compare>
inline __device__
thrust::detail::uint32_t operator()(Size max_input_size,
InputIterator1 first1, InputIterator1 last1,
InputIterator2 first2, InputIterator2 last2,
OutputIterator result,
Compare comp)
{
thrust::detail::uint32_t active_mask = 0;
thrust::detail::uint32_t active_bit = 1;
while(first1 != last1 && first2 != last2)
{
if(comp(*first1,*first2))
{
*result = *first1;
active_mask |= active_bit;
++first1;
} // end if
else if(comp(*first2,*first1))
{
++first2;
} // end else if
else
{
++first1;
++first2;
} // end else
++result;
active_bit <<= 1;
} // end while
while(first1 != last1)
{
*result = *first1;
++first1;
++result;
active_mask |= active_bit;
active_bit <<= 1;
}
return active_mask;
}
template<typename Size, typename InputIterator1, typename InputIterator2, typename Compare>
inline __device__
Size count(Size max_input_size,
InputIterator1 first1, InputIterator1 last1,
InputIterator2 first2, InputIterator2 last2,
Compare comp)
{
Size result = 0;
while(first1 != last1 && first2 != last2)
{
if(comp(*first1,*first2))
{
++first1;
++result;
} // end if
else if(comp(*first2,*first1))
{
++first2;
} // end else if
else
{
++first1;
++first2;
} // end else
} // end while
return result + last1 - first1;
}
}; // end serial_bounded_set_difference
} // end namespace set_difference_detail
template<typename DerivedPolicy,
typename RandomAccessIterator1,
typename RandomAccessIterator2,
typename RandomAccessIterator3,
typename Compare>
RandomAccessIterator3 set_difference(execution_policy<DerivedPolicy> &exec,
RandomAccessIterator1 first1,
RandomAccessIterator1 last1,
RandomAccessIterator2 first2,
RandomAccessIterator2 last2,
RandomAccessIterator3 result,
Compare comp)
{
return thrust::system::cuda::detail::detail::set_operation(exec, first1, last1, first2, last2, result, comp, set_difference_detail::serial_bounded_set_difference());
} // end set_difference
} // end namespace detail
} // end namespace cuda
} // end namespace system
} // end namespace thrust