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
121 lines
4.4 KiB
Plaintext
121 lines
4.4 KiB
Plaintext
#include <cuda/__functional/address_stability.h>
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#include <unittest/unittest.h>
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struct addable
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{
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_CCCL_HOST_DEVICE friend auto operator+(const addable&, const addable&) -> addable
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{
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return addable{};
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}
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};
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void TestAddressStabilityLibcuxx()
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{
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using ::cuda::proclaim_copyable_arguments;
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using ::cuda::proclaims_copyable_arguments;
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// libcu++ function objects with known types
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static_assert(proclaims_copyable_arguments<::cuda::std::plus<int>>::value);
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static_assert(!proclaims_copyable_arguments<::cuda::std::plus<>>::value);
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// libcu++ function objects with unknown types
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static_assert(!proclaims_copyable_arguments<::cuda::std::plus<addable>>::value);
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static_assert(!proclaims_copyable_arguments<::cuda::std::plus<>>::value);
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// libcu++ function objects with unknown types and opt-in
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static_assert(proclaims_copyable_arguments<decltype(proclaim_copyable_arguments(cuda::std::plus<addable>{}))>::value);
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static_assert(proclaims_copyable_arguments<decltype(proclaim_copyable_arguments(cuda::std::plus<>{}))>::value);
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}
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DECLARE_UNITTEST(TestAddressStabilityLibcuxx);
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void TestAddressStabilityThrust()
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{
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using ::cuda::proclaim_copyable_arguments;
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using ::cuda::proclaims_copyable_arguments;
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// thrust function objects with known types
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static_assert(proclaims_copyable_arguments<::cuda::std::plus<int>>::value);
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static_assert(!proclaims_copyable_arguments<::cuda::std::plus<>>::value);
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// thrust function objects with unknown types
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static_assert(!proclaims_copyable_arguments<::cuda::std::plus<addable>>::value);
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static_assert(!proclaims_copyable_arguments<::cuda::std::plus<>>::value);
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// thrust function objects with unknown types and opt-in
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static_assert(
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proclaims_copyable_arguments<decltype(proclaim_copyable_arguments(::cuda::std::plus<addable>{}))>::value);
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static_assert(proclaims_copyable_arguments<decltype(proclaim_copyable_arguments(::cuda::std::plus<>{}))>::value);
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}
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DECLARE_UNITTEST(TestAddressStabilityThrust);
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template <typename T>
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struct my_plus
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{
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_CCCL_HOST_DEVICE auto operator()(T a, T b) const -> T
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{
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return a + b;
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}
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};
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void TestAddressStabilityUserDefinedFunctionObject()
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{
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using ::cuda::proclaim_copyable_arguments;
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using ::cuda::proclaims_copyable_arguments;
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// by-value overload
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static_assert(!proclaims_copyable_arguments<my_plus<int>>::value);
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// by-value overload with opt-in
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static_assert(proclaims_copyable_arguments<decltype(proclaim_copyable_arguments(my_plus<int>{}))>::value);
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// by-reference overload
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static_assert(!proclaims_copyable_arguments<my_plus<int&>>::value);
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static_assert(!proclaims_copyable_arguments<my_plus<const int&>>::value);
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static_assert(!proclaims_copyable_arguments<my_plus<int&&>>::value);
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static_assert(!proclaims_copyable_arguments<my_plus<const int&&>>::value);
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// by-reference overload with opt-in
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static_assert(proclaims_copyable_arguments<decltype(proclaim_copyable_arguments(my_plus<int&>{}))>::value);
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static_assert(proclaims_copyable_arguments<decltype(proclaim_copyable_arguments(my_plus<const int&>{}))>::value);
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static_assert(proclaims_copyable_arguments<decltype(proclaim_copyable_arguments(my_plus<int&&>{}))>::value);
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static_assert(proclaims_copyable_arguments<decltype(proclaim_copyable_arguments(my_plus<const int&&>{}))>::value);
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}
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DECLARE_UNITTEST(TestAddressStabilityUserDefinedFunctionObject);
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void TestAddressStabilityLambda()
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{
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using ::cuda::proclaim_copyable_arguments;
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using ::cuda::proclaims_copyable_arguments;
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{
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auto l = [](const int& i) {
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return i + 2;
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};
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static_assert(!proclaims_copyable_arguments<decltype(l)>::value);
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auto pr_l = proclaim_copyable_arguments(l);
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ASSERT_EQUAL(pr_l(3), 5);
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static_assert(proclaims_copyable_arguments<decltype(pr_l)>::value);
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}
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{
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auto l = [] _CCCL_DEVICE(const int& i) {
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return i + 2;
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};
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static_assert(!proclaims_copyable_arguments<decltype(l)>::value);
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[[maybe_unused]] auto pr_device_l = proclaim_copyable_arguments(l);
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static_assert(proclaims_copyable_arguments<decltype(pr_device_l)>::value);
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}
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{
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auto l = [] _CCCL_HOST_DEVICE(const int& i) {
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return i + 2;
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};
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static_assert(!proclaims_copyable_arguments<decltype(l)>::value);
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auto pr_l = proclaim_copyable_arguments(l);
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ASSERT_EQUAL(pr_l(3), 5);
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static_assert(proclaims_copyable_arguments<decltype(pr_l)>::value);
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}
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}
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DECLARE_UNITTEST(TestAddressStabilityLambda);
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