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[CCCL] 瘦身 + 补全: 移除 cudax/python/libcudacxx-tests 冗余文件, 新增 c2h 测试助手 + cmake 构建系统 + 8 个 CUDA thrust examples

Browse Source 
变更摘要:
- 删除: cudax/ (783 files, 7.2M) — 实验性组件，竞赛不需要
- 删除: python/ (226 files, 2.0M) — Python 绑定，竞赛不需要
- 删除: libcudacxx/{test,benchmarks,codegen,cmake,share} (4432 files, 31M)
  保留: libcudacxx/include/ (1463 headers, cuda::std 编译依赖)
- 新增: c2h/ (27 files) — CUB Catch2 测试辅助头文件，编译 243 个测试必需
- 新增: cmake/ (29 files) — CCCL 原生 CMake 构建系统
- 新增: thrust/examples/cuda/ (7 files) + cpp_integration/ (1 file)
  async_reduce, custom_temporary_allocation, explicit_cuda_stream,
  global_device_vector, range_view, unwrap_pointer, wrap_pointer, device

结果: cccl_upstream 从 74M→35M (瘦身 53%), 核心内容 100% 保留:
  27/27 tuning headers, 78 benchmarks, 243 tests,
  60 thrust examples, 18 CUB examples, 全部编译头文件
This commit is contained in:
muh-bot
2026-08-03 12:39:26 +00:00
parent a2a5dd8f00
commit 24ef6a91b5
5439 changed files with 0 additions and 719516 deletions
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122
cccl_upstream/cudax/include/cuda/experimental/__library/library.cuh
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@@ -1,122 +0,0 @@
//===----------------------------------------------------------------------===//
//
// Part of CUDA Experimental in CUDA C++ Core Libraries,
// under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//
#ifndef _CUDAX___LIBRARY_LIBRARY_CUH
#define _CUDAX___LIBRARY_LIBRARY_CUH
#include <cuda/__cccl_config>
#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/__driver/driver_api.h>
#include <cuda/std/__cstddef/types.h>
#include <cuda/std/__exception/cuda_error.h>
#include <cuda/std/__memory/addressof.h>
#include <cuda/std/__utility/exchange.h>
#include <cuda/std/__utility/move.h>
#include <cuda/std/__utility/swap.h>
#include <cuda/experimental/__detail/utility.cuh>
#include <cuda/experimental/__library/library_ref.cuh>
#include <cuda/std/__cccl/prologue.h>
namespace cuda::experimental
{
//! @brief An owning wrapper for a CUDA library handle
struct library : public library_ref
{
//! @brief Construct an `library` object from a native `CUlibrary`/`cudaLibrary_t` handle
//!
//! @param __handle The native handle
//!
//! @return The constructed `library` object
//!
//! @note The constructed `library` object takes ownership of the native handle
[[nodiscard]] static library from_native_handle(value_type __handle) noexcept
{
return library{__handle};
}
//! @brief Disallow construction from a null pointer
static library from_native_handle(::cuda::std::nullptr_t) = delete;
//! @brief Construct a new `library` object into the moved-from state
//!
//! @post `get()` will return an invalid `CUlibrary` handle
explicit constexpr library(no_init_t) noexcept
: library{value_type{}}
{}
library(const library&) = delete;
//! @brief Move-construct a new 'library' object
//!
//! @param __other The `library` to move from
//!
//! @post `__other` is in the moved-from state
library(library&& __other) noexcept
: library{__other.release()}
{}
//! @brief Destroy the `library` object
//!
//! @note If the library fails to unload, the error is silently ignored
~library()
{
if (__library_ != value_type{})
{
[[maybe_unused]] const auto __status = ::cuda::__driver::__libraryUnloadNoThrow(__library_);
}
}
library& operator=(const library&) = delete;
//! @brief Move-assign a new `library` object
//!
//! @param __other The `library` to move from
//!
//! @post `__other` is in the moved-from state
library& operator=(library&& __other) noexcept
{
if (this != ::cuda::std::addressof(__other))
{
library __tmp{::cuda::std::move(__other)};
::cuda::std::swap(__library_, __tmp.__library_);
}
return *this;
}
//! @brief Retrieve the native `CUlibrary`/`cudaLibrary_t` handle and give up ownership
//!
//! @return The native handle being held by the `library` object
//!
//! @post The library object is in a moved-from state
[[nodiscard]] constexpr value_type release() noexcept
{
return ::cuda::std::exchange(__library_, value_type{});
}
private:
constexpr explicit library(value_type __handle) noexcept
: library_ref{__handle}
{}
};
} // namespace cuda::experimental
#include <cuda/std/__cccl/epilogue.h>
#endif // _CUDAX___LIBRARY_LIBRARY_CUH

236
cccl_upstream/cudax/include/cuda/experimental/__library/library_ref.cuh
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@@ -1,236 +0,0 @@
//===----------------------------------------------------------------------===//
//
// Part of CUDA Experimental in CUDA C++ Core Libraries,
// under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//
#ifndef _CUDAX___LIBRARY_LIBRARY_REF_CUH
#define _CUDAX___LIBRARY_LIBRARY_REF_CUH
#include <cuda/__cccl_config>
#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/__device/device_ref.h>
#include <cuda/__driver/driver_api.h>
#include <cuda/__runtime/ensure_current_context.h>
#include <cuda/std/__cstddef/types.h>
#include <cuda/std/__exception/cuda_error.h>
#include <cuda/std/__exception/exception_macros.h>
#include <cuda/std/__cccl/prologue.h>
namespace cuda::experimental
{
template <class _Signature>
class kernel_ref;
//! @brief Information about a symbol in a CUDA library
struct library_symbol_info
{
void* ptr; //!< Address of the symbol
::cuda::std::size_t size; //!< Size of the symbol in bytes
};
//! @brief A non-owning wrapper for a CUDA library handle
class library_ref
{
public:
#if _CCCL_CTK_BELOW(12, 7)
using value_type = ::CUlibrary;
#else // ^^^ _CCCL_CTK_BELOW(12, 7) ^^^ / vvv _CCCL_CTK_AT_LEAST(12, 7) vvv
using value_type = ::cudaLibrary_t;
#endif // _CCCL_CTK_BELOW(12, 7)
//! @brief Disallow construction from a null pointer
library_ref(::cuda::std::nullptr_t) = delete;
//! @brief Constructs a `library_ref` from a CUlibrary handle
//!
//! @param __library The CUlibrary handle to wrap
constexpr library_ref(value_type __library) noexcept
: __library_((::CUlibrary) __library)
{}
library_ref(const library_ref&) = default;
//! @brief Checks if the library contains a kernel with the given name
//!
//! @param __name The name of the kernel to check for
//!
//! @return true if the library contains a kernel with the given name, false otherwise
//!
//! @throws cuda_error if the library could not be queried for the kernel
[[nodiscard]] bool has_kernel(const char* __name) const
{
::CUkernel __kernel{};
switch (const auto __res = ::cuda::__driver::__libraryGetKernelNoThrow(__kernel, __library_, __name))
{
case ::cudaSuccess:
return true;
case ::cudaErrorSymbolNotFound:
return false;
default:
_CCCL_THROW(::cuda::cuda_error, __res, "Failed to get the kernel from library");
}
}
//! @brief Gets a reference to a kernel from the library
//!
//! @tparam _Signature The signature of the kernel to retrieve in form of `void(Args...)`
//!
//! @param __name The name of the kernel to retrieve
//!
//! @return A `kernel_ref` that refers to the kernel with the given name
//!
//! @throws cuda_error if the kernel could not be found in the library
template <class _Signature>
[[nodiscard]] kernel_ref<_Signature> kernel(const char* __name) const
{
::CUkernel __kernel{};
if (const auto __res = ::cuda::__driver::__libraryGetKernelNoThrow(__kernel, __library_, __name);
__res != ::cudaSuccess)
{
_CCCL_THROW(::cuda::cuda_error, __res, "Failed to get the kernel from the library");
}
return kernel_ref<_Signature>{__kernel};
}
//! @brief Checks if the library contains a global symbol with the given name on a device
//!
//! @param __name The name of the global symbol to check for
//! @param __device The device on which to check for the global symbol
//!
//! @return true if the library contains a global symbol with the given name, false otherwise
//!
//! @throws cuda_error if the library could not be queried for the global symbol
[[nodiscard]] bool has_global(const char* __name, ::cuda::device_ref __device) const
{
::cuda::__ensure_current_context __ctx_guard(__device);
::CUdeviceptr __dptr{};
::cuda::std::size_t __size{};
switch (const auto __res = ::cuda::__driver::__libraryGetGlobalNoThrow(__dptr, __size, __library_, __name))
{
case ::cudaSuccess:
return true;
case ::cudaErrorSymbolNotFound:
return false;
default:
_CCCL_THROW(::cuda::cuda_error, __res, "Failed to get the global symbol from library");
}
}
//! @brief Gets a pointer and size of a global symbol from the library on a device
//!
//! @param __name The name of the global symbol to retrieve
//! @param __device The device on which to retrieve the global symbol
//!
//! @return A pair containing a device pointer to the global symbol and its size
//!
//! @throws cuda_error if the global symbol could not be found in the library
[[nodiscard]] library_symbol_info global(const char* __name, ::cuda::device_ref __device) const
{
::cuda::__ensure_current_context __ctx_guard(__device);
::CUdeviceptr __dptr{};
::cuda::std::size_t __size{};
if (const auto __res = ::cuda::__driver::__libraryGetGlobalNoThrow(__dptr, __size, __library_, __name);
__res != ::cudaSuccess)
{
_CCCL_THROW(::cuda::cuda_error, __res, "Failed to get the global symbol from the library");
}
return library_symbol_info{reinterpret_cast<void*>(__dptr), __size};
}
//! @brief Checks if the library contains a managed symbol with the given name
//!
//! @param __name The name of the managed symbol to check for
//!
//! @return true if the library contains a managed symbol with the given name, false otherwise
//!
//! @throws cuda_error if the library could not be queried for the managed symbol
//!
//! @note Managed memory is shared across devices
[[nodiscard]] bool has_managed(const char* __name) const
{
::CUdeviceptr __dptr{};
::cuda::std::size_t __size{};
switch (const auto __res = ::cuda::__driver::__libraryGetManagedNoThrow(__dptr, __size, __library_, __name))
{
case ::cudaSuccess:
return true;
case ::cudaErrorSymbolNotFound:
return false;
default:
_CCCL_THROW(::cuda::cuda_error, __res, "Failed to get the managed symbol from library");
}
}
//! @brief Gets a pointer and size of a managed symbol from the library
//!
//! @param __name The name of the managed symbol to retrieve
//!
//! @return A pair containing a pointer to the managed symbol and its size
//!
//! @throws cuda_error if the managed symbol could not be found in the library
//!
//! @note Managed memory is shared across devices
[[nodiscard]] library_symbol_info managed(const char* __name) const
{
::CUdeviceptr __dptr{};
::cuda::std::size_t __size{};
if (const auto __res = ::cuda::__driver::__libraryGetManagedNoThrow(__dptr, __size, __library_, __name);
__res != ::cudaSuccess)
{
_CCCL_THROW(::cuda::cuda_error, __res, "Failed to get the managed symbol from the library");
}
return library_symbol_info{reinterpret_cast<void*>(__dptr), __size};
}
//! @brief Gets the CUlibrary handle
//!
//! @return The CUlibrary handle wrapped by this `library_ref`
[[nodiscard]] constexpr value_type get() const noexcept
{
return (value_type) __library_;
}
//! @brief Compares two `library_ref` for equality
//!
//! @param __lhs The first `library_ref` to compare
//! @param __rhs The second `library_ref` to compare
//! @return true if `lhs` and `rhs` refer to the same library
[[nodiscard]] friend constexpr bool operator==(library_ref __lhs, library_ref __rhs) noexcept
{
return __lhs.__library_ == __rhs.__library_;
}
//! @brief Compares two `library_ref` for inequality
//!
//! @param __lhs The first `library_ref` to compare
//! @param __rhs The second `library_ref` to compare
//! @return true if `lhs` and `rhs` refer to a different library
[[nodiscard]] friend constexpr bool operator!=(library_ref __lhs, library_ref __rhs) noexcept
{
return !(__lhs == __rhs);
}
protected:
::CUlibrary __library_;
};
} // namespace cuda::experimental
#include <cuda/std/__cccl/epilogue.h>
#endif // _CUDAX___LIBRARY_LIBRARY_REF_CUH