simd_batch_example.cpp

Demonstrates SIMD-optimized batch operations on containers.

Demonstrates SIMD-optimized batch operations on containers.Shows simd_batch for high-throughput data collection with trivially copyable types.

See also

kcenon::container::core::simd_batch

// BSD 3-Clause License
// Copyright (c) 2021-2025, 🍀☀🌕🌥 🌊
// See the LICENSE file in the project root for full license information.
 
 
#include <kcenon/container/simd_batch.h>
 
#include <chrono>
#include <cstdint>
#include <iostream>
 
using namespace kcenon::container;
 
int main()
{
    std::cout << "=== SIMD Batch Example ===" << std::endl;
 
    // 1. Basic batch operations with integers
    std::cout << "\n1. Integer batch:" << std::endl;
    core::simd_batch<int32_t> int_batch;
 
    for (int32_t i = 0; i < 100; ++i)
    {
        int_batch.push(i * i);
    }
 
    std::cout << "   Size: " << int_batch.size() << std::endl;
 
    const auto& values = int_batch.values();
    std::cout << "   First 5: ";
    for (size_t i = 0; i < 5 && i < values.size(); ++i)
    {
        std::cout << values[i] << " ";
    }
    std::cout << std::endl;
 
    // 2. Double-precision batch
    std::cout << "\n2. Double batch:" << std::endl;
    core::simd_batch<double> double_batch;
 
    for (int i = 0; i < 50; ++i)
    {
        double_batch.push(i * 0.1);
    }
    std::cout << "   Size: " << double_batch.size() << std::endl;
 
    // 3. Performance measurement
    std::cout << "\n3. Batch insert performance:" << std::endl;
    core::simd_batch<int64_t> perf_batch;
 
    auto start = std::chrono::high_resolution_clock::now();
    for (int64_t i = 0; i < 100000; ++i)
    {
        perf_batch.push(i);
    }
    auto end = std::chrono::high_resolution_clock::now();
    auto us = std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
 
    std::cout << "   100K inserts: " << us << " us" << std::endl;
    std::cout << "   Final size: " << perf_batch.size() << std::endl;
 
    // 4. Clear and reuse
    perf_batch.clear();
    std::cout << "\n4. After clear: size=" << perf_batch.size() << std::endl;
 
    std::cout << "\nDone." << std::endl;
    return 0;
}