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// MIT License
//
// Copyright (c) 2022-2024 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_REDUCE_PARALLEL_HPP_
#define ROCPRIM_BENCHMARK_DEVICE_REDUCE_PARALLEL_HPP_
#include "benchmark_utils.hpp"
// Google Benchmark
#include <benchmark/benchmark.h>
// HIP API
#include <hip/hip_runtime.h>
// rocPRIM HIP API
#include <rocprim/device/detail/device_config_helper.hpp>
#include <rocprim/device/device_reduce.hpp>
#include <string>
#include <vector>
#include <cstddef>
constexpr const char* get_reduce_method_name(rocprim::block_reduce_algorithm alg)
{
switch(alg)
{
case rocprim::block_reduce_algorithm::raking_reduce: return "raking_reduce";
case rocprim::block_reduce_algorithm::raking_reduce_commutative_only:
return "raking_reduce_commutative_only";
case rocprim::block_reduce_algorithm::using_warp_reduce:
return "using_warp_reduce";
// Not using `default: ...` because it kills effectiveness of -Wswitch
}
return "unknown_algorithm";
}
template<typename Config>
std::string config_name()
{
const rocprim::detail::reduce_config_params config = Config();
return "{bs:" + std::to_string(config.reduce_config.block_size)
+ ",ipt:" + std::to_string(config.reduce_config.items_per_thread)
+ ",method:" + std::string(get_reduce_method_name(config.block_reduce_method)) + "}";
}
template<>
inline std::string config_name<rocprim::default_config>()
{
return "default_config";
}
template<typename T = int,
typename BinaryFunction = rocprim::plus<T>,
typename Config = rocprim::default_config>
struct device_reduce_benchmark : public config_autotune_interface
{
std::string name() const override
{
return bench_naming::format_name("{lvl:device,algo:reduce,key_type:"
+ std::string(Traits<T>::name())
+ ",cfg:" + config_name<Config>() + "}");
}
static constexpr unsigned int batch_size = 10;
static constexpr unsigned int warmup_size = 5;
void run(benchmark::State& state,
size_t bytes,
const managed_seed& seed,
hipStream_t stream) const override
{
// Calculate the number of elements
size_t size = bytes / sizeof(T);
BinaryFunction reduce_op{};
const auto random_range = limit_random_range<T>(0, 1000);
std::vector<T> input
= get_random_data<T>(size, random_range.first, random_range.second, seed.get_0());
T * d_input;
T * d_output;
HIP_CHECK(hipMalloc(reinterpret_cast<void**>(&d_input), size * sizeof(T)));
HIP_CHECK(hipMalloc(reinterpret_cast<void**>(&d_output), sizeof(T)));
HIP_CHECK(
hipMemcpy(
d_input, input.data(),
size * sizeof(T),
hipMemcpyHostToDevice
)
);
HIP_CHECK(hipDeviceSynchronize());
// Allocate temporary storage memory
size_t temp_storage_size_bytes;
void * d_temp_storage = nullptr;
// Get size of d_temp_storage
HIP_CHECK(
rocprim::reduce<Config>(
d_temp_storage, temp_storage_size_bytes,
d_input, d_output, T(), size,
reduce_op, stream
)
);
HIP_CHECK(hipMalloc(&d_temp_storage,temp_storage_size_bytes));
HIP_CHECK(hipDeviceSynchronize());
// Warm-up
for(size_t i = 0; i < warmup_size; i++)
{
HIP_CHECK(
rocprim::reduce<Config>(
d_temp_storage, temp_storage_size_bytes,
d_input, d_output, T(), size,
reduce_op, stream
)
);
}
HIP_CHECK(hipDeviceSynchronize());
// HIP events creation
hipEvent_t start, stop;
HIP_CHECK(hipEventCreate(&start));
HIP_CHECK(hipEventCreate(&stop));
for(auto _ : state)
{
// Record start event
HIP_CHECK(hipEventRecord(start, stream));
for(size_t i = 0; i < batch_size; i++)
{
HIP_CHECK(
rocprim::reduce<Config>(
d_temp_storage, temp_storage_size_bytes,
d_input, d_output, T(), size,
reduce_op, stream
)
);
}
HIP_CHECK(hipStreamSynchronize(stream));
// 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(T));
state.SetItemsProcessed(state.iterations() * batch_size * size);
HIP_CHECK(hipFree(d_input));
HIP_CHECK(hipFree(d_output));
HIP_CHECK(hipFree(d_temp_storage));
}
};
#endif
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