Files
project_6/cccl_upstream/thrust/thrust/pair.h
EngineX CI 56fd68e7dd [INFRA] Import NVIDIA/CCCL upstream as optimization reference library
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
2026-07-30 09:35:51 +00:00

71 lines
1.8 KiB
C++

// SPDX-FileCopyrightText: Copyright (c) 2008-2013, NVIDIA Corporation. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
/*! \file pair.h
* \brief A type encapsulating a heterogeneous pair of elements
*/
#pragma once
#include <thrust/detail/config.h>
#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
# pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
# pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
# pragma system_header
#endif // no system header
#include <cuda/std/__tuple_dir/get.h>
#include <cuda/std/__tuple_dir/tuple_element.h>
#include <cuda/std/__tuple_dir/tuple_size.h>
#include <cuda/std/__utility/pair.h>
THRUST_NAMESPACE_BEGIN
/*! \addtogroup utility
* \{
*/
/*! \addtogroup pair
* \{
*/
// Documented in tuple.h — only declared here for compatibility with pair users.
using ::cuda::std::tuple_element;
using ::cuda::std::tuple_size;
/*! \p pair is a generic data structure encapsulating a heterogeneous
* pair of values.
*
* \tparam T1 The type of \p pair's first object type. There are no
* requirements on the type of \p T1. <tt>T1</tt>'s type is
* provided by <tt>pair::first_type</tt>.
*
* \tparam T2 The type of \p pair's second object type. There are no
* requirements on the type of \p T2. <tt>T2</tt>'s type is
* provided by <tt>pair::second_type</tt>.
*
* \verbatim embed:rst:leading-asterisk
* .. versionadded:: 2.2.0
* \endverbatim
*/
#ifdef _CCCL_DOXYGEN_INVOKED // Provide a fake alias for doxygen
template <class T, class U>
using pair = ::cuda::std::pair<T, U>;
#else // ^^^ _CCCL_DOXYGEN_INVOKED ^^^ / vvv !_CCCL_DOXYGEN_INVOKED vvv
using ::cuda::std::pair;
#endif // _CCCL_DOXYGEN_INVOKED
using ::cuda::std::get;
using ::cuda::std::make_pair;
/*! \} // pair
*/
/*! \} // utility
*/
THRUST_NAMESPACE_END