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nvbench/nvbench/type_axis.cuh
2025-04-14 17:26:12 +00:00

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/*
* Copyright 2021 NVIDIA Corporation
*
* Licensed under the Apache License, Version 2.0 with the LLVM exception
* (the "License"); you may not use this file except in compliance with
* the License.
*
* You may obtain a copy of the License at
*
* http://llvm.org/foundation/relicensing/LICENSE.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <nvbench/axis_base.cuh>
#include <nvbench/type_list.cuh>
#include <nvbench/type_strings.cuh>
#include <string>
#include <vector>
namespace nvbench
{
struct type_axis final : public axis_base
{
type_axis(std::string name, std::size_t axis_index)
: axis_base{std::move(name), axis_type::type}
, m_input_strings{}
, m_descriptions{}
, m_axis_index{axis_index}
{}
~type_axis() final;
template <typename TypeList>
void set_inputs();
void set_active_inputs(const std::vector<std::string> &inputs);
[[nodiscard]] bool get_is_active(const std::string &input) const;
[[nodiscard]] bool get_is_active(std::size_t index) const;
[[nodiscard]] std::size_t get_active_count() const;
/**
* The index of this axis in the `benchmark`'s `type_axes` type list.
*/
[[nodiscard]] std::size_t get_axis_index() const { return m_axis_index; }
/**
* The index in this axis of the type with the specified `input_string`.
*/
[[nodiscard]] std::size_t get_type_index(const std::string &input_string) const;
private:
std::unique_ptr<axis_base> do_clone() const final { return std::make_unique<type_axis>(*this); }
std::size_t do_get_size() const final { return m_input_strings.size(); }
std::string do_get_input_string(std::size_t i) const final { return m_input_strings[i]; }
std::string do_get_description(std::size_t i) const final { return m_descriptions[i]; }
std::vector<std::string> m_input_strings;
std::vector<std::string> m_descriptions;
// Use a mask to store active flags; inactive types must still be indexed
// to keep things synced with the benchmark's type_axes typelist, which is
// not mutable. Use `get_is_active` to determine whether an entry is active.
std::vector<bool> m_mask;
std::size_t m_axis_index;
};
template <typename TypeList>
void type_axis::set_inputs()
{
// Need locals for lambda capture...
auto &input_strings = m_input_strings;
auto &descriptions = m_descriptions;
nvbench::tl::foreach<TypeList>(
[&input_strings, &descriptions]([[maybe_unused]] auto wrapped_type) {
using T = typename decltype(wrapped_type)::type;
using Strings = nvbench::type_strings<T>;
input_strings.push_back(Strings::input_string());
descriptions.push_back(Strings::description());
});
m_mask.clear();
m_mask.resize(m_input_strings.size(), true);
}
} // namespace nvbench