47 lines
1.8 KiB
Plaintext
47 lines
1.8 KiB
Plaintext
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// SPDX-FileCopyrightText: Copyright (c) 2011-2023, NVIDIA CORPORATION. All rights reserved.
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// SPDX-License-Identifier: BSD-3
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#include <thrust/device_vector.h>
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#include <thrust/execution_policy.h>
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#include <thrust/merge.h>
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#include <thrust/sort.h>
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#include "nvbench_helper.cuh"
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template <typename T>
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static void basic(nvbench::state& state, nvbench::type_list<T>)
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{
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const auto elements = static_cast<std::size_t>(state.get_int64("Elements"));
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const auto size_ratio = static_cast<std::size_t>(state.get_int64("InputSizeRatio"));
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const auto entropy = str_to_entropy(state.get_string("Entropy"));
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const auto elements_in_lhs = static_cast<std::size_t>(static_cast<double>(size_ratio * elements) / 100.0);
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thrust::device_vector<T> out(elements);
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thrust::device_vector<T> in = generate(elements, entropy);
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thrust::sort(in.begin(), in.begin() + elements_in_lhs);
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thrust::sort(in.begin() + elements_in_lhs, in.end());
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state.add_element_count(elements);
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state.add_global_memory_reads<T>(elements);
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state.add_global_memory_writes<T>(elements);
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caching_allocator_t alloc;
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state.exec(nvbench::exec_tag::gpu | nvbench::exec_tag::no_batch | nvbench::exec_tag::sync,
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[&](nvbench::launch& launch) {
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thrust::merge(
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policy(alloc, launch),
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in.cbegin(),
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in.cbegin() + elements_in_lhs,
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in.cbegin() + elements_in_lhs,
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in.cend(),
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out.begin());
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});
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}
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NVBENCH_BENCH_TYPES(basic, NVBENCH_TYPE_AXES(fundamental_types))
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.set_name("base")
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.set_type_axes_names({"T{ct}"})
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.add_int64_power_of_two_axis("Elements", nvbench::range(16, 28, 4))
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.add_string_axis("Entropy", {"1.000", "0.201"})
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.add_int64_axis("InputSizeRatio", {25, 50, 75});
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