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
244 lines
12 KiB
Plaintext
244 lines
12 KiB
Plaintext
#include <thrust/functional.h>
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#include <thrust/transform.h>
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#include <cuda/iterator>
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#include <unittest/unittest.h>
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#define BINARY_FUNCTIONAL_PLACEHOLDERS_TEST(name, op, reference_functor, type_list) \
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template <typename Vector> \
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struct TestFunctionalPlaceholders##name \
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{ \
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void operator()(const size_t) \
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{ \
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const size_t num_samples = 10000; \
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using T = typename Vector::value_type; \
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Vector lhs = unittest::random_samples<T>(num_samples); \
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Vector rhs = unittest::random_samples<T>(num_samples); \
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thrust::replace(rhs.begin(), rhs.end(), T(0), T(1)); \
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\
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Vector lhs_reference = lhs; \
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Vector reference(lhs.size()); \
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Vector result(lhs_reference.size()); \
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using namespace thrust::placeholders; \
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\
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thrust::transform( \
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lhs_reference.begin(), lhs_reference.end(), rhs.begin(), reference.begin(), reference_functor<T>()); \
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thrust::transform(lhs.begin(), lhs.end(), rhs.begin(), result.begin(), _1 op _2); \
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ASSERT_ALMOST_EQUAL(reference, result); \
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ASSERT_ALMOST_EQUAL(lhs_reference, lhs); \
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\
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thrust::transform( \
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lhs_reference.begin(), \
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lhs_reference.end(), \
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cuda::make_constant_iterator<T>(1), \
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reference.begin(), \
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reference_functor<T>()); \
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thrust::transform(lhs.begin(), lhs.end(), rhs.begin(), result.begin(), _1 op T(1)); \
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ASSERT_ALMOST_EQUAL(reference, result); \
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ASSERT_ALMOST_EQUAL(lhs_reference, lhs); \
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} \
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}; \
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VectorUnitTest<TestFunctionalPlaceholders##name, type_list, thrust::device_vector, thrust::device_allocator> \
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TestFunctionalPlaceholders##name##DeviceInstance; \
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VectorUnitTest<TestFunctionalPlaceholders##name, type_list, thrust::host_vector, std::allocator> \
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TestFunctionalPlaceholders##name##HostInstance;
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template <typename T>
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struct plus_equal_reference
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{
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_CCCL_HOST_DEVICE T& operator()(T& lhs, const T& rhs) const
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{
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return lhs += rhs;
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}
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};
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template <typename T>
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struct minus_equal_reference
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{
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_CCCL_HOST_DEVICE T& operator()(T& lhs, const T& rhs) const
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{
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return lhs -= rhs;
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}
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};
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template <typename T>
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struct multiplies_equal_reference
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{
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_CCCL_HOST_DEVICE T& operator()(T& lhs, const T& rhs) const
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{
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return lhs *= rhs;
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}
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};
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template <typename T>
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struct divides_equal_reference
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{
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_CCCL_HOST_DEVICE T& operator()(T& lhs, const T& rhs) const
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{
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return lhs /= rhs;
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}
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};
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template <typename T>
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struct modulus_equal_reference
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{
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_CCCL_HOST_DEVICE T& operator()(T& lhs, const T& rhs) const
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{
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return lhs %= rhs;
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}
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};
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BINARY_FUNCTIONAL_PLACEHOLDERS_TEST(PlusEqual, +=, plus_equal_reference, ThirtyTwoBitTypes);
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BINARY_FUNCTIONAL_PLACEHOLDERS_TEST(MinusEqual, -=, minus_equal_reference, ThirtyTwoBitTypes);
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BINARY_FUNCTIONAL_PLACEHOLDERS_TEST(MultipliesEqual, *=, multiplies_equal_reference, ThirtyTwoBitTypes);
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BINARY_FUNCTIONAL_PLACEHOLDERS_TEST(DividesEqual, /=, divides_equal_reference, ThirtyTwoBitTypes);
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BINARY_FUNCTIONAL_PLACEHOLDERS_TEST(ModulusEqual, %=, modulus_equal_reference, SmallIntegralTypes);
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template <typename T>
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struct bit_and_equal_reference
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{
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_CCCL_HOST_DEVICE T& operator()(T& lhs, const T& rhs) const
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{
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return lhs &= rhs;
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}
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};
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template <typename T>
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struct bit_or_equal_reference
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{
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_CCCL_HOST_DEVICE T& operator()(T& lhs, const T& rhs) const
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{
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return lhs |= rhs;
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}
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};
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template <typename T>
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struct bit_xor_equal_reference
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{
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_CCCL_HOST_DEVICE T& operator()(T& lhs, const T& rhs) const
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{
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return lhs ^= rhs;
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}
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};
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template <typename T>
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struct bit_lshift_equal_reference
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{
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_CCCL_HOST_DEVICE T& operator()(T& lhs, const T& rhs) const
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{
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return lhs <<= rhs;
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}
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};
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template <typename T>
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struct bit_rshift_equal_reference
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{
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_CCCL_HOST_DEVICE T& operator()(T& lhs, const T& rhs) const
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{
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return lhs >>= rhs;
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}
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};
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BINARY_FUNCTIONAL_PLACEHOLDERS_TEST(BitAndEqual, &=, bit_and_equal_reference, SmallIntegralTypes);
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BINARY_FUNCTIONAL_PLACEHOLDERS_TEST(BitOrEqual, |=, bit_or_equal_reference, SmallIntegralTypes);
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BINARY_FUNCTIONAL_PLACEHOLDERS_TEST(BitXorEqual, ^=, bit_xor_equal_reference, SmallIntegralTypes);
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// XXX ptxas produces an error
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void TestFunctionalPlaceholdersBitLshiftEqualDevice()
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{
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KNOWN_FAILURE;
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}
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// XXX KNOWN_FAILURE this until the above works
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void TestFunctionalPlaceholdersBitLshiftEqualHost()
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{
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KNOWN_FAILURE;
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}
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// BINARY_FUNCTIONAL_PLACEHOLDERS_TEST(BitLshiftEqual, <<=, bit_lshift_equal_reference, SmallIntegralTypes);
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BINARY_FUNCTIONAL_PLACEHOLDERS_TEST(BitRshiftEqual, >>=, bit_rshift_equal_reference, SmallIntegralTypes);
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template <typename T>
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struct prefix_increment_reference
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{
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_CCCL_HOST_DEVICE T& operator()(T& x) const
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{
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return ++x;
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}
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};
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template <typename T>
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struct suffix_increment_reference
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{
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_CCCL_HOST_DEVICE T operator()(T& x) const
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{
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return x++;
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}
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};
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template <typename T>
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struct prefix_decrement_reference
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{
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_CCCL_HOST_DEVICE T& operator()(T& x) const
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{
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return --x;
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}
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};
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template <typename T>
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struct suffix_decrement_reference
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{
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_CCCL_HOST_DEVICE T operator()(T& x) const
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{
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return x--;
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}
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};
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#define PREFIX_FUNCTIONAL_PLACEHOLDERS_TEST(name, reference_operator, functor) \
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template <typename Vector> \
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void TestFunctionalPlaceholdersPrefix##name() \
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{ \
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const size_t num_samples = 10000; \
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using T = typename Vector::value_type; \
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Vector input = unittest::random_samples<T>(num_samples); \
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\
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Vector input_reference = input; \
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Vector reference(input.size()); \
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thrust::transform(input.begin(), input.end(), reference.begin(), functor<T>()); \
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\
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using namespace thrust::placeholders; \
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Vector result(input_reference.size()); \
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thrust::transform(input_reference.begin(), input_reference.end(), result.begin(), reference_operator _1); \
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\
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ASSERT_ALMOST_EQUAL(input_reference, input); \
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ASSERT_ALMOST_EQUAL(reference, result); \
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} \
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DECLARE_INTEGRAL_VECTOR_UNITTEST(TestFunctionalPlaceholdersPrefix##name);
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PREFIX_FUNCTIONAL_PLACEHOLDERS_TEST(Increment, ++, prefix_increment_reference);
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PREFIX_FUNCTIONAL_PLACEHOLDERS_TEST(Decrement, --, prefix_decrement_reference);
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#define SUFFIX_FUNCTIONAL_PLACEHOLDERS_TEST(name, reference_operator, functor) \
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template <typename Vector> \
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void TestFunctionalPlaceholdersSuffix##name() \
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{ \
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const size_t num_samples = 10000; \
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using T = typename Vector::value_type; \
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Vector input = unittest::random_samples<T>(num_samples); \
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\
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Vector input_reference = input; \
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Vector reference(input.size()); \
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thrust::transform(input.begin(), input.end(), reference.begin(), functor<T>()); \
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\
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using namespace thrust::placeholders; \
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Vector result(input_reference.size()); \
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thrust::transform(input_reference.begin(), input_reference.end(), result.begin(), _1 reference_operator); \
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\
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ASSERT_ALMOST_EQUAL(input_reference, input); \
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ASSERT_ALMOST_EQUAL(reference, result); \
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} \
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DECLARE_INTEGRAL_VECTOR_UNITTEST(TestFunctionalPlaceholdersSuffix##name);
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SUFFIX_FUNCTIONAL_PLACEHOLDERS_TEST(Increment, ++, suffix_increment_reference);
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SUFFIX_FUNCTIONAL_PLACEHOLDERS_TEST(Decrement, --, suffix_decrement_reference);
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