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
87 lines
2.6 KiB
Plaintext
87 lines
2.6 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/experimental/execution.cuh>
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#include "common/dummy_scheduler.cuh"
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#include "testing.cuh" // IWYU pragma: keep
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namespace ex = ::cuda::experimental::execution;
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struct not_a_receiver
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{};
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struct a_receiver
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{
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using receiver_concept = ex::receiver_t;
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a_receiver(a_receiver&&) = default;
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void set_value(int) && noexcept {}
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void set_stopped() && noexcept {}
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};
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C2H_TEST("tests for the receiver concepts", "[concepts]")
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{
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static_assert(!ex::receiver<not_a_receiver>);
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static_assert(ex::receiver<a_receiver>);
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using yes_completions = ex::completion_signatures<ex::set_value_t(int), ex::set_stopped_t()>;
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static_assert(ex::receiver_of<a_receiver, yes_completions>);
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using no_completions =
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ex::completion_signatures<ex::set_value_t(int), ex::set_stopped_t(), ex::set_error_t(ex::exception_ptr)>;
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static_assert(!ex::receiver_of<a_receiver, no_completions>);
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}
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struct not_a_sender
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{};
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struct a_sender
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{
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using sender_concept = ex::sender_t;
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template <class _Self>
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static constexpr auto get_completion_signatures()
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{
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return ex::completion_signatures<ex::set_value_t(int), ex::set_stopped_t()>{};
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}
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};
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struct non_constexpr_complsigs
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{
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using sender_concept = ex::sender_t;
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template <class _Self, class...>
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_CCCL_HOST_DEVICE static auto get_completion_signatures()
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{
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return ex::completion_signatures<ex::set_value_t(int), ex::set_stopped_t()>{};
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}
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};
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C2H_TEST("tests for the sender concepts", "[concepts]")
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{
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static_assert(!ex::sender<not_a_sender>);
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static_assert(ex::sender<a_sender>);
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static_assert(ex::sender_in<a_sender>);
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static_assert(ex::sender_in<a_sender, ex::env<>>);
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static_assert(ex::sender<non_constexpr_complsigs>);
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static_assert(!ex::sender_in<non_constexpr_complsigs>);
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static_assert(!ex::sender_in<non_constexpr_complsigs, ex::env<>>);
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[[maybe_unused]] auto read_env = ex::read_env(ex::get_scheduler);
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using read_env_t = decltype(read_env);
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static_assert(ex::sender<read_env_t>);
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static_assert(!ex::sender_in<read_env_t>);
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static_assert(!ex::sender_in<read_env_t, ex::env<>>);
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static_assert(ex::sender_in<read_env_t, ex::prop<ex::get_scheduler_t, dummy_scheduler<>>>);
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}
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