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
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
// SPDX-FileCopyrightText: Copyright (c) 2025, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
#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/__type_traits/decay.h>
|
|
#include <cuda/std/__type_traits/is_base_of.h>
|
|
|
|
THRUST_NAMESPACE_BEGIN
|
|
|
|
// Forward declarations
|
|
namespace system::detail::sequential
|
|
{
|
|
template <class>
|
|
struct execution_policy;
|
|
} // namespace system::detail::sequential
|
|
|
|
namespace detail
|
|
{
|
|
// Helper to determine if NVTX should be enabled for a given policy
|
|
// NVTX is DISABLED only for thrust::seq and any policy derived from sequential::execution_policy
|
|
// ENABLED for all other policies (CUDA, OMP, TBB, etc.)
|
|
template <typename DerivedPolicy>
|
|
inline constexpr bool should_enable_nvtx_for_policy()
|
|
{
|
|
using Policy = ::cuda::std::decay_t<DerivedPolicy>;
|
|
// This catches thrust::seq, cpp::tag, and any other sequential-based policy
|
|
return !::cuda::std::is_base_of_v<thrust::system::detail::sequential::execution_policy<Policy>, Policy>;
|
|
}
|
|
} // namespace detail
|
|
|
|
THRUST_NAMESPACE_END
|