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// MIT License
//
// Copyright (c) 2025 Advanced Micro Devices, Inc. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#ifndef ROCPRIM_BENCHMARK_DEVICE_RUN_LENGTH_ENCODE_PARALLEL_HPP_
#define ROCPRIM_BENCHMARK_DEVICE_RUN_LENGTH_ENCODE_PARALLEL_HPP_
#include "benchmark_utils.hpp"
// Google Benchmark
#include <benchmark/benchmark.h>
// HIP API
#include <hip/hip_runtime.h>
// rocPRIM
#include <rocprim/device/detail/device_config_helper.hpp>
#include <rocprim/device/device_run_length_encode.hpp>
#include <algorithm>
#include <string>
#include <type_traits>
#include <vector>
#ifdef BENCHMARK_CONFIG_TUNING
#include <memory>
#endif
template<typename Config>
std::string run_length_encode_config_name()
{
const rocprim::detail::reduce_by_key_config_params config = Config();
return "{bs:" + std::to_string(config.kernel_config.block_size)
+ ",ipt:" + std::to_string(config.kernel_config.items_per_thread) + "}";
}
template<>
inline std::string run_length_encode_config_name<rocprim::default_config>()
{
return "default_config";
}
template<typename T, size_t MaxLength, typename Config = rocprim::default_config>
struct device_run_length_encode_benchmark : public config_autotune_interface
{
std::string name() const override
{
return bench_naming::format_name("{lvl:device,algo:run_length_encode,key_type:"
+ std::string(Traits<T>::name())
+ ",keys_max_length:" + std::to_string(MaxLength)
+ ",cfg:" + run_length_encode_config_name<Config>() + "}");
}
void run(benchmark::State& state,
size_t bytes,
const managed_seed& seed,
hipStream_t stream) const override
{
using key_type = T;
using count_type = unsigned int;
const size_t size = bytes / sizeof(T);
// Generate data
std::vector<key_type> input(size);
unsigned int runs_count = 0;
const auto random_range = limit_random_range<size_t>(1, MaxLength);
std::vector<size_t> key_counts = get_random_data<size_t>(100000,
random_range.first,
random_range.second,
seed.get_0());
size_t offset = 0;
while(offset < size)
{
const size_t key_count = key_counts[runs_count % key_counts.size()];
const size_t end = std::min(size, offset + key_count);
for(size_t i = offset; i < end; ++i)
{
input[i] = runs_count;
}
++runs_count;
offset += key_count;
}
key_type* d_input;
HIP_CHECK(hipMalloc(reinterpret_cast<void**>(&d_input), size * sizeof(key_type)));
HIP_CHECK(hipMemcpy(d_input, input.data(), size * sizeof(key_type), hipMemcpyHostToDevice));
key_type* d_unique_output;
count_type* d_counts_output;
count_type* d_runs_count_output;
HIP_CHECK(
hipMalloc(reinterpret_cast<void**>(&d_unique_output), runs_count * sizeof(key_type)));
HIP_CHECK(
hipMalloc(reinterpret_cast<void**>(&d_counts_output), runs_count * sizeof(count_type)));
HIP_CHECK(hipMalloc(reinterpret_cast<void**>(&d_runs_count_output), sizeof(count_type)));
void* d_temporary_storage = nullptr;
size_t temporary_storage_bytes = 0;
HIP_CHECK(rocprim::run_length_encode<Config>(nullptr,
temporary_storage_bytes,
d_input,
size,
d_unique_output,
d_counts_output,
d_runs_count_output,
stream,
false));
HIP_CHECK(hipMalloc(&d_temporary_storage, temporary_storage_bytes));
HIP_CHECK(hipDeviceSynchronize());
// Warm-up
for(size_t i = 0; i < 10; ++i)
{
HIP_CHECK(rocprim::run_length_encode<Config>(d_temporary_storage,
temporary_storage_bytes,
d_input,
size,
d_unique_output,
d_counts_output,
d_runs_count_output,
stream,
false));
}
HIP_CHECK(hipDeviceSynchronize());
// HIP events creation
hipEvent_t start, stop;
HIP_CHECK(hipEventCreate(&start));
HIP_CHECK(hipEventCreate(&stop));
const unsigned int batch_size = 10;
for(auto _ : state)
{
// Record start event
HIP_CHECK(hipEventRecord(start, stream));
for(size_t i = 0; i < batch_size; ++i)
{
HIP_CHECK(rocprim::run_length_encode<Config>(d_temporary_storage,
temporary_storage_bytes,
d_input,
size,
d_unique_output,
d_counts_output,
d_runs_count_output,
stream,
false));
}
// Record stop event and wait until it completes
HIP_CHECK(hipEventRecord(stop, stream));
HIP_CHECK(hipEventSynchronize(stop));
float elapsed_mseconds;
HIP_CHECK(hipEventElapsedTime(&elapsed_mseconds, start, stop));
state.SetIterationTime(elapsed_mseconds / 1000);
}
// Destroy HIP events
HIP_CHECK(hipEventDestroy(start));
HIP_CHECK(hipEventDestroy(stop));
state.SetBytesProcessed(state.iterations() * batch_size * size * sizeof(key_type));
state.SetItemsProcessed(state.iterations() * batch_size * size);
HIP_CHECK(hipFree(d_temporary_storage));
HIP_CHECK(hipFree(d_input));
HIP_CHECK(hipFree(d_unique_output));
HIP_CHECK(hipFree(d_counts_output));
HIP_CHECK(hipFree(d_runs_count_output));
}
};
#ifdef BENCHMARK_CONFIG_TUNING
template<typename T, unsigned int BlockSize>
struct device_run_length_encode_benchmark_generator
{
template<unsigned int ItemsPerThread>
struct create_ipt
{
void operator()(std::vector<std::unique_ptr<config_autotune_interface>>& storage)
{
using config
= rocprim::reduce_by_key_config<BlockSize,
ItemsPerThread,
rocprim::block_load_method::block_load_transpose,
rocprim::block_load_method::block_load_transpose,
rocprim::block_scan_algorithm::using_warp_scan>;
storage.emplace_back(
std::make_unique<device_run_length_encode_benchmark<T, 10, config>>());
storage.emplace_back(
std::make_unique<device_run_length_encode_benchmark<T, 1000, config>>());
}
};
static void create(std::vector<std::unique_ptr<config_autotune_interface>>& storage)
{
static_for_each<make_index_range<unsigned int, 4u, 15u>, create_ipt>(storage);
}
};
#endif // BENCHMARK_CONFIG_TUNING
#endif // ROCPRIM_BENCHMARK_DEVICE_RUN_LENGTH_ENCODE_PARALLEL_HPP_
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