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project_6/cccl_upstream/thrust/benchmarks/bench/replace/basic.cu

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// SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include <thrust/device_vector.h>
#include <thrust/replace.h>
#include <cuda/memory_pool>
#include <cuda/stream>
#include "nvbench_helper.cuh"
template <typename T>
static void basic(nvbench::state& state, nvbench::type_list<T>)
{
const auto elements = static_cast<std::size_t>(state.get_int64("Elements"));
thrust::device_vector<T> in = generate(elements, bit_entropy::_1_000, T{0}, T{42});
state.add_element_count(elements);
state.add_global_memory_reads<T>(elements);
state.add_global_memory_writes<T>(elements);
caching_allocator_t alloc{};
state.exec(nvbench::exec_tag::gpu | nvbench::exec_tag::no_batch | nvbench::exec_tag::sync,
[&](nvbench::launch& launch) {
thrust::replace(policy(alloc, launch), in.begin(), in.end(), 42, 1337);
});
}
NVBENCH_BENCH_TYPES(basic, NVBENCH_TYPE_AXES(fundamental_types))
.set_name("base")
.set_type_axes_names({"T{ct}"})
.add_int64_power_of_two_axis("Elements", nvbench::range(16, 28, 4));