mirror of https://github.com/GOSTSec/ccminer
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
93 lines
2.9 KiB
93 lines
2.9 KiB
/* |
|
* 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/system/omp/detail/reduce_intervals.h> |
|
#include <thrust/iterator/iterator_traits.h> |
|
#include <thrust/detail/function.h> |
|
#include <thrust/detail/cstdint.h> |
|
|
|
namespace thrust |
|
{ |
|
namespace system |
|
{ |
|
namespace omp |
|
{ |
|
namespace detail |
|
{ |
|
|
|
template <typename DerivedPolicy, |
|
typename InputIterator, |
|
typename OutputIterator, |
|
typename BinaryFunction, |
|
typename Decomposition> |
|
void reduce_intervals(execution_policy<DerivedPolicy> &, |
|
InputIterator input, |
|
OutputIterator output, |
|
BinaryFunction binary_op, |
|
Decomposition decomp) |
|
{ |
|
// we're attempting to launch an omp kernel, assert we're compiling with omp support |
|
// ======================================================================== |
|
// X Note to the user: If you've found this line due to a compiler error, X |
|
// X you need to enable OpenMP support in your compiler. X |
|
// ======================================================================== |
|
THRUST_STATIC_ASSERT( (thrust::detail::depend_on_instantiation<InputIterator, |
|
(THRUST_DEVICE_COMPILER_IS_OMP_CAPABLE == THRUST_TRUE)>::value) ); |
|
|
|
#if (THRUST_DEVICE_COMPILER_IS_OMP_CAPABLE == THRUST_TRUE) |
|
typedef typename thrust::iterator_value<OutputIterator>::type OutputType; |
|
|
|
// wrap binary_op |
|
thrust::detail::host_function<BinaryFunction,OutputType> wrapped_binary_op(binary_op); |
|
|
|
typedef thrust::detail::intptr_t index_type; |
|
|
|
index_type n = static_cast<index_type>(decomp.size()); |
|
|
|
#if (THRUST_DEVICE_COMPILER_IS_OMP_CAPABLE == THRUST_TRUE) |
|
# pragma omp parallel for |
|
#endif // THRUST_DEVICE_COMPILER_IS_OMP_CAPABLE |
|
for(index_type i = 0; i < n; i++) |
|
{ |
|
InputIterator begin = input + decomp[i].begin(); |
|
InputIterator end = input + decomp[i].end(); |
|
|
|
if (begin != end) |
|
{ |
|
OutputType sum = thrust::raw_reference_cast(*begin); |
|
|
|
++begin; |
|
|
|
while (begin != end) |
|
{ |
|
sum = wrapped_binary_op(sum, *begin); |
|
++begin; |
|
} |
|
|
|
OutputIterator tmp = output + i; |
|
*tmp = sum; |
|
} |
|
} |
|
#endif // THRUST_DEVICE_COMPILER_IS_OMP_CAPABLE |
|
} |
|
|
|
} // end namespace detail |
|
} // end namespace omp |
|
} // end namespace system |
|
} // end namespace thrust |
|
|
|
|