Reduction.cpp

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#include <benchmark/benchmark.h>
 
#include "cloudViewer/core/AdvancedIndexing.h"
#include "cloudViewer/core/CUDAUtils.h"
#include "cloudViewer/core/Dtype.h"
#include "cloudViewer/core/MemoryManager.h"
#include "cloudViewer/core/SizeVector.h"
#include "cloudViewer/core/Tensor.h"
#include "cloudViewer/core/kernel/Kernel.h"
 
namespace cloudViewer {
namespace core {
 
void Reduction(benchmark::State& state, const Device& device) {
    int64_t large_dim = (1ULL << 27) + 10;
    SizeVector shape{2, large_dim};
    Tensor src(shape, core::Int64, device);
    Tensor warm_up = src.Sum({1});
    (void)warm_up;
    for (auto _ : state) {
        Tensor dst = src.Sum({1});
        cuda::Synchronize(device);
    }
}
 
BENCHMARK_CAPTURE(Reduction, CPU, Device("CPU:0"))
        ->Unit(benchmark::kMillisecond);
 
#ifdef BUILD_CUDA_MODULE
BENCHMARK_CAPTURE(Reduction, CUDA, Device("CUDA:0"))
        ->Unit(benchmark::kMillisecond);
#endif
 
}  // namespace core
}  // namespace cloudViewer