dedf08166a
Added 863 files from NVIDIA/cccl sparse checkout: - c2h/ (27 files): Catch2 test helpers — generators, validators, runner - nvbench_helper/ (10 files): Benchmark harness utilities - cmake/ (29 files): CMake presets and build helpers - cudax/ (794 files): Experimental CUDA extensions - AGENTS.md: NVIDIA's official AI agent instructions for CCCL - CMakePresets.json: Standardized build configurations - cccl-version.json: Version tracking Also added CCCL_ASSET_MAP.md mapping all 4295 CCCL files to competition value and PRD items. cccl_upstream now covers 100% of competition-critical assets: - 27 tuning headers (SM80/90/100 benchmark data) - 32 dispatch headers (algorithm implementations) - 60 Thrust examples (correctness verification) - 217 CUB Catch2 tests (regression matrix) - 153 CUB benchmarks (parameter space search) - 18 CUB examples (API verification) - 27 test helpers + benchmark harness - 794 cudax experimental extensions
82 lines
2.1 KiB
Plaintext
82 lines
2.1 KiB
Plaintext
//===----------------------------------------------------------------------===//
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//
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// Part of CUDA Experimental in CUDA C++ Core Libraries,
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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) 2024 NVIDIA CORPORATION & AFFILIATES.
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//
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//===----------------------------------------------------------------------===//
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#include <cuda/std/__algorithm/max.h>
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#include <cuda/experimental/execution.cuh>
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#include "testing.cuh" // IWYU pragma: keep
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namespace
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{
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struct S0
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{};
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struct S1
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{
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int a;
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};
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struct S2
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{
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int a, b;
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};
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static_assert(cudax_async::structured_binding_size<S0> == 0);
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static_assert(cudax_async::structured_binding_size<S1> == 1);
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static_assert(cudax_async::structured_binding_size<S2> == 2);
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template <class Fn>
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struct recursive_lambda
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{
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template <class... Args>
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auto operator()(Args&&... args)
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{
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return fn(*this, cuda::std::forward<Args>(args)...);
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}
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Fn fn;
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};
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template <class Fn>
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recursive_lambda(Fn) -> recursive_lambda<Fn>;
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C2H_TEST("sender visitation API works", "[visit]")
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{
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int leaves = 0;
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int depth = 0;
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auto snd = cudax_async::when_all(
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cudax_async::just(3), //
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cudax_async::just(0.1415),
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cudax_async::then(cudax_async::just(0.1415), [](double f) {
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return f;
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}));
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auto snd1 = std::move(snd) | cudax_async::then([](int x, double y, double z) {
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return x + y + z;
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});
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auto count_leaves = recursive_lambda{[](auto& self, int& leaves, auto, auto&, auto&... child) {
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leaves += (sizeof...(child) == 0);
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((cudax_async::visit(self, child, leaves)), ...);
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}};
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cudax_async::visit(count_leaves, snd1, leaves);
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CHECK(leaves == 3);
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auto max_depth = recursive_lambda{[i = 0](auto& self, int& depth, auto, auto&, auto&... child) mutable {
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++i;
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depth = cuda::std::max(depth, i);
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((cudax_async::visit(self, child, depth)), ...);
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--i;
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}};
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cudax_async::visit(max_depth, snd1, depth);
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CHECK(depth == 4);
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}
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} // namespace
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