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
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of libcu++, the C++ Standard Library for your entire system,
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// under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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// SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES.
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//
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//===----------------------------------------------------------------------===//
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#ifndef _CUDA_FUNCTIONAL_MAXIMUM_H
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#define _CUDA_FUNCTIONAL_MAXIMUM_H
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#include <cuda/std/detail/__config>
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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 <cuda/__functional/minimum_maximum_common.h>
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#include <cuda/std/__cmath/min_max.h>
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#include <cuda/std/__type_traits/common_type.h>
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#include <cuda/std/__type_traits/is_extended_floating_point.h>
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#include <cuda/std/__type_traits/is_floating_point.h>
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#include <cuda/std/__utility/ctad_support.h>
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#include <cuda/std/__cccl/prologue.h>
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_CCCL_BEGIN_NAMESPACE_CUDA
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template <class _Tp = void>
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struct _CCCL_TYPE_VISIBILITY_DEFAULT maximum
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{
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_CCCL_EXEC_CHECK_DISABLE
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[[nodiscard]] _CCCL_API constexpr _Tp operator()(const _Tp& __lhs, const _Tp& __rhs) const
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noexcept(__is_maximum_minimum_noexcept_v<_Tp, _Tp, _Tp>)
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{
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if constexpr (::cuda::std::is_floating_point_v<_Tp> || ::cuda::std::__is_extended_floating_point_v<_Tp>)
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{
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return ::cuda::std::fmax(__lhs, __rhs);
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}
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else
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{
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return (__lhs < __rhs) ? __rhs : __lhs;
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}
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}
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};
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_CCCL_CTAD_SUPPORTED_FOR_TYPE(maximum);
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template <>
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struct _CCCL_TYPE_VISIBILITY_DEFAULT maximum<void>
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{
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_CCCL_EXEC_CHECK_DISABLE
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template <class Tp, class Up, class _Common = ::cuda::std::common_type_t<Tp, Up>>
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[[nodiscard]] _CCCL_API constexpr _Common operator()(const Tp& __lhs, const Up& __rhs) const
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noexcept(__is_maximum_minimum_noexcept_v<Tp, Up, _Common>)
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{
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if constexpr (::cuda::std::is_floating_point_v<_Common> || ::cuda::std::__is_extended_floating_point_v<_Common>)
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{
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return ::cuda::std::fmax(static_cast<_Common>(__lhs), static_cast<_Common>(__rhs));
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}
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else
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{
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return (__lhs < __rhs) ? __rhs : __lhs;
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}
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}
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};
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_CCCL_END_NAMESPACE_CUDA
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#include <cuda/std/__cccl/epilogue.h>
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#endif // _CUDA_FUNCTIONAL_MAXIMUM_H
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