derek.holloway
7502bf64a4
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61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
/*
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* Copyright 2008-2013 NVIDIA Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <thrust/detail/config.h>
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#include <thrust/system/omp/detail/default_decomposition.h>
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// don't attempt to #include this file without omp support
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#if (THRUST_DEVICE_COMPILER_IS_OMP_CAPABLE == THRUST_TRUE)
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#include <omp.h>
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#endif // omp support
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THRUST_NAMESPACE_BEGIN
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namespace system
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{
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namespace omp
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{
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namespace detail
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{
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template <typename IndexType>
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thrust::system::detail::internal::uniform_decomposition<IndexType> default_decomposition(IndexType n)
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{
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// we're attempting to launch an omp kernel, assert we're compiling with omp support
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// ========================================================================
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// X Note to the user: If you've found this line due to a compiler error, X
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// X you need to OpenMP support in your compiler. X
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// ========================================================================
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THRUST_STATIC_ASSERT_MSG(
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(thrust::detail::depend_on_instantiation<
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IndexType, (THRUST_DEVICE_COMPILER_IS_OMP_CAPABLE == THRUST_TRUE)
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>::value)
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, "OpenMP compiler support is not enabled"
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);
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#if (THRUST_DEVICE_COMPILER_IS_OMP_CAPABLE == THRUST_TRUE)
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return thrust::system::detail::internal::uniform_decomposition<IndexType>(n, 1, omp_get_num_procs());
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#else
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return thrust::system::detail::internal::uniform_decomposition<IndexType>(n, 1, 1);
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#endif
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}
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} // end namespace detail
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} // end namespace omp
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} // end namespace system
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THRUST_NAMESPACE_END
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