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.
*/
#pragma once
#include <thrust/detail/config.h>
#include <thrust/iterator/iterator_traits.h>
#include <thrust/functional.h>
#include <thrust/system/cuda/detail/block/inclusive_scan.h>
namespace thrust
{
namespace system
{
namespace cuda
{
namespace detail
{
namespace block
{
template<typename Context, typename RandomAccessIterator, typename T, typename BinaryFunction>
inline __device__
typename thrust::iterator_value<RandomAccessIterator>::type
inplace_exclusive_scan(Context &ctx, RandomAccessIterator first, T init, BinaryFunction op)
{
// perform an inclusive scan, then shift right
block::inplace_inclusive_scan(ctx, first, op);
typename thrust::iterator_value<RandomAccessIterator>::type carry = first[ctx.block_dimension() - 1];
ctx.barrier();
typename thrust::iterator_value<RandomAccessIterator>::type left = (ctx.thread_index() == 0) ? init : first[ctx.thread_index() - 1];
ctx.barrier();
first[ctx.thread_index()] = left;
ctx.barrier();
return carry;
}
template<typename Context, typename Iterator, typename T>
inline __device__
typename thrust::iterator_value<Iterator>::type
inplace_exclusive_scan(Context &ctx, Iterator first, T init)
{
return block::inplace_exclusive_scan(ctx, first, init, thrust::plus<typename thrust::iterator_value<Iterator>::type>());
}
} // end namespace block
} // end namespace detail
} // end namespace cuda
} // end namespace system
} // end namespace thrust