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
59 lines
1.6 KiB
Plaintext
59 lines
1.6 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) 2025 NVIDIA CORPORATION & AFFILIATES.
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//
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//===----------------------------------------------------------------------===//
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// Include this first
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#include <cuda/experimental/execution.cuh>
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// Then include the test helpers
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#include "common/checked_receiver.cuh"
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#include "common/utility.cuh"
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#include "testing.cuh"
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namespace ex = cuda::experimental::execution;
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namespace
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{
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C2H_TEST("simple use of conditional runs exactly one of the two closures", "[adaptors][conditional]")
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{
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for (int i = 42; i < 44; ++i)
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{
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bool even{false};
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bool odd{false};
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auto sndr1 =
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ex::just(i)
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| ex::conditional(
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[](int i) {
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return i % 2 == 0;
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},
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ex::then([&](int) {
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even = true;
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}),
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ex::then([&](int) {
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odd = true;
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}));
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check_value_types<types<>>(sndr1);
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check_sends_stopped<false>(sndr1);
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#if _CCCL_HAS_EXCEPTIONS()
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check_error_types<ex::exception_ptr>(sndr1);
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#else // ^^^ _CCCL_HAS_EXCEPTIONS() ^^^ / vvv !_CCCL_HAS_EXCEPTIONS() vvv
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check_error_types<>(sndr1);
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#endif // !_CCCL_HAS_EXCEPTIONS()
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auto op = ex::connect(std::move(sndr1), checked_value_receiver<>{});
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ex::start(op);
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CHECK(even == (i % 2 == 0));
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CHECK(odd == (i % 2 == 1));
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}
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}
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} // namespace
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