56fd68e7dd
CCCL (CUDA C++ Core Libraries) provides: - CUB: device/block/warp-level GPU primitives (reduce, scan, sort, topk) - Thrust: high-level parallel algorithms (transform_reduce, sort, scan) - libcudacxx: CUDA C++ standard library (atomics, barriers, memory) - cudax: experimental features (memory resources, allocators) - Tuning policies: per-SM hardware-specific algorithm parameters Competition optimization vectors mapped to CCCL: - Output TPS (83% weight): warp_reduce, block_reduce, device_topk - Input TPS (14% weight): device_scan, block_load, prefetch - Cache TPS (3% weight): prefix caching strategy patterns - Memory (0.9 util): pooled/cached/buddy allocators Source: https://github.com/NVIDIA/cccl (shallow clone, HEAD only) License: Apache-2.0
65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
// SPDX-FileCopyrightText: Copyright (c) 2008-2013, NVIDIA Corporation. All rights reserved.
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include <thrust/detail/config.h>
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#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
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# pragma GCC system_header
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#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
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# pragma clang system_header
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#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
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# pragma system_header
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#endif // no system header
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#include <thrust/iterator/iterator_traits.h>
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#include <thrust/swap.h>
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#include <thrust/system/detail/generic/select_system.h>
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// Include all active backend system implementations (generic, sequential, host and device)
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#include <thrust/system/detail/generic/swap_ranges.h>
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#include <thrust/system/detail/sequential/swap_ranges.h>
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#include __THRUST_HOST_SYSTEM_ALGORITH_DETAIL_HEADER_INCLUDE(swap_ranges.h)
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#include __THRUST_DEVICE_SYSTEM_ALGORITH_DETAIL_HEADER_INCLUDE(swap_ranges.h)
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// Some build systems need a hint to know which files we could include
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#if 0
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# include <thrust/system/cpp/detail/swap_ranges.h>
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# include <thrust/system/cuda/detail/swap_ranges.h>
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# include <thrust/system/omp/detail/swap_ranges.h>
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# include <thrust/system/tbb/detail/swap_ranges.h>
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#endif
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THRUST_NAMESPACE_BEGIN
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_CCCL_EXEC_CHECK_DISABLE
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template <typename DerivedPolicy, typename ForwardIterator1, typename ForwardIterator2>
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_CCCL_HOST_DEVICE ForwardIterator2 swap_ranges(
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const thrust::detail::execution_policy_base<DerivedPolicy>& exec,
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ForwardIterator1 first1,
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ForwardIterator1 last1,
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ForwardIterator2 first2)
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{
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_CCCL_NVTX_RANGE_SCOPE("thrust::swap_ranges");
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using thrust::system::detail::generic::swap_ranges;
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return swap_ranges(thrust::detail::derived_cast(thrust::detail::strip_const(exec)), first1, last1, first2);
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} // end swap_ranges()
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template <typename ForwardIterator1, typename ForwardIterator2>
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ForwardIterator2 swap_ranges(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2)
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{
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_CCCL_NVTX_RANGE_SCOPE("thrust::swap_ranges");
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using thrust::system::detail::generic::select_system;
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using System1 = typename thrust::iterator_system<ForwardIterator1>::type;
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using System2 = typename thrust::iterator_system<ForwardIterator2>::type;
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System1 system1;
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System2 system2;
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return thrust::swap_ranges(select_system(system1, system2), first1, last1, first2);
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} // end swap_ranges()
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THRUST_NAMESPACE_END
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