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
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
// SPDX-FileCopyrightText: Copyright (c) 2018, NVIDIA Corporation. All rights reserved.
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
#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 <thrust/mr/memory_resource.h>
|
|
#include <thrust/mr/validator.h>
|
|
|
|
#include <cuda/std/__memory/pointer_traits.h>
|
|
|
|
THRUST_NAMESPACE_BEGIN
|
|
namespace mr
|
|
{
|
|
template <typename Upstream, typename Pointer>
|
|
class fancy_pointer_resource final
|
|
: public memory_resource<Pointer>
|
|
, private validator<Upstream>
|
|
{
|
|
public:
|
|
fancy_pointer_resource()
|
|
: m_upstream(get_global_resource<Upstream>())
|
|
{}
|
|
|
|
fancy_pointer_resource(Upstream* upstream)
|
|
: m_upstream(upstream)
|
|
{}
|
|
|
|
[[nodiscard]] Pointer do_allocate(std::size_t bytes, std::size_t alignment = THRUST_MR_DEFAULT_ALIGNMENT) override
|
|
{
|
|
return static_cast<Pointer>(m_upstream->do_allocate(bytes, alignment));
|
|
}
|
|
|
|
void do_deallocate(Pointer p, std::size_t bytes, std::size_t alignment) override
|
|
{
|
|
return m_upstream->do_deallocate(
|
|
static_cast<typename Upstream::pointer>(::cuda::std::to_address(p)), bytes, alignment);
|
|
}
|
|
|
|
private:
|
|
Upstream* m_upstream;
|
|
};
|
|
} // namespace mr
|
|
THRUST_NAMESPACE_END
|