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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

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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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120
cccl_upstream/cudax/test/execution/common/stopped_scheduler.cuh
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@@ -1,120 +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) 2024 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//
#pragma once
#include <cuda/__utility/immovable.h>
#include <cuda/experimental/execution.cuh>
#include "testing.cuh" // IWYU pragma: keep
namespace
{
struct _stopped_scheduler_attrs_t
{
template <class _Env>
_CCCL_HOST_DEVICE auto
query(cudax_async::get_completion_scheduler_t<cudax_async::set_value_t>, const _Env& env) const noexcept
-> decltype(cudax_async::get_completion_scheduler<cudax_async::set_value_t>(env, env))
{
return cudax_async::get_completion_scheduler<cudax_async::set_value_t>(env, env);
}
template <class _Env>
_CCCL_HOST_DEVICE auto
query(cudax_async::get_completion_scheduler_t<cudax_async::set_stopped_t>, const _Env& env) const noexcept
-> decltype(cudax_async::get_completion_scheduler<cudax_async::set_stopped_t>(env, env))
{
return cudax_async::get_completion_scheduler<cudax_async::set_stopped_t>(env, env);
}
template <class _Env>
_CCCL_HOST_DEVICE auto
query(cudax_async::get_completion_domain_t<cudax_async::set_value_t>, const _Env& env) const noexcept
-> decltype(cudax_async::get_completion_domain<cudax_async::set_value_t>(env, env))
{
return cudax_async::get_completion_domain<cudax_async::set_value_t>(env, env);
}
template <class _Env>
_CCCL_HOST_DEVICE auto
query(cudax_async::get_completion_domain_t<cudax_async::set_stopped_t>, const _Env& env) const noexcept
-> decltype(cudax_async::get_completion_domain<cudax_async::set_stopped_t>(env, env))
{
return cudax_async::get_completion_domain<cudax_async::set_stopped_t>(env, env);
}
_CCCL_HOST_DEVICE static constexpr auto query(cudax_async::get_completion_behavior_t) noexcept
{
return cudax_async::completion_behavior::inline_completion;
}
};
//! Scheduler that returns a sender that always completes with stopped.
struct stopped_scheduler : _stopped_scheduler_attrs_t
{
private:
template <class Rcvr>
struct _opstate_t : cuda::__immovable
{
using operation_state_concept = cudax_async::operation_state_t;
Rcvr _rcvr;
_CCCL_HOST_DEVICE void start() noexcept
{
cudax_async::set_stopped(static_cast<Rcvr&&>(_rcvr));
}
};
struct _sndr_t
{
using sender_concept = cudax_async::sender_t;
template <class Self>
_CCCL_HOST_DEVICE static constexpr auto get_completion_signatures()
{
return cudax_async::completion_signatures<cudax_async::set_value_t(), cudax_async::set_stopped_t()>();
}
template <class Rcvr>
_CCCL_HOST_DEVICE auto connect(Rcvr rcvr) const noexcept -> _opstate_t<Rcvr>
{
return {{}, static_cast<Rcvr&&>(rcvr)};
}
_CCCL_HOST_DEVICE auto get_env() const noexcept -> _stopped_scheduler_attrs_t
{
return {};
}
};
public:
using scheduler_concept = cudax_async::scheduler_t;
stopped_scheduler() = default;
_CCCL_HOST_DEVICE auto schedule() const noexcept -> _sndr_t
{
return {};
}
_CCCL_HOST_DEVICE friend constexpr bool operator==(stopped_scheduler, stopped_scheduler) noexcept
{
return true;
}
_CCCL_HOST_DEVICE friend constexpr bool operator!=(stopped_scheduler, stopped_scheduler) noexcept
{
return false;
}
};
} // namespace