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
60 lines
1.8 KiB
Plaintext
60 lines
1.8 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) 2022-2025 NVIDIA CORPORATION & AFFILIATES.
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//
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//===----------------------------------------------------------------------===//
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#include <cuda/experimental/__utility/optionally_static.cuh>
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#include <cstddef>
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#include <c2h/catch2_test_helper.h>
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namespace cudax = cuda::experimental;
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TEST_CASE("optionally_static static value", "[utility]")
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{
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constexpr cudax::optionally_static<::std::size_t(42), 0> v1;
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static_assert(v1.get() == 42);
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static_assert(v1 == v1);
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static_assert(v1 == 42UL);
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constexpr cudax::optionally_static<::std::size_t(43), 0> v2;
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static_assert(v2.get() == 43UL);
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}
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TEST_CASE("optionally_static dynamic value", "[utility]")
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{
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cudax::optionally_static<::std::size_t(0), 0> v3;
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REQUIRE(v3.get() == 0);
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v3 = 44;
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REQUIRE(v3.get() == 44UL);
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}
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TEST_CASE("optionally_static multiplication", "[utility]")
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{
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constexpr cudax::optionally_static<::std::size_t(42), 0> v1;
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constexpr cudax::optionally_static<::std::size_t(43), 0> v2;
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static_assert(v1 * v1 == 42UL * 42UL);
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static_assert(v1 * v2 == 42UL * 43UL);
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static_assert(v1 * 44 == 42UL * 44UL);
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static_assert(44 * v1 == 42UL * 44UL);
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cudax::optionally_static<::std::size_t(0), 0> v3;
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v3 = 44;
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REQUIRE(v1 * v3 == 42 * 44);
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}
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TEST_CASE("optionally_static reserved product", "[utility]")
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{
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constexpr cudax::optionally_static<3, 18> v4;
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constexpr cudax::optionally_static<6, 18> v5;
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static_assert(v4 * v5 == 18UL);
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static_assert(v4 * v5 == (cudax::optionally_static<18, 18>(18)));
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}
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