call_buffer_timer.cpp

/*
Copyright (c) 2024, Hammurabi Mendes.
All rights reserved.

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modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
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      documentation and/or other materials provided with the distribution.
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      may be used to endorse or promote products derived from this software without
      specific prior written permission.

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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 */

#include <iostream>
#include <unistd.h>

#include <vector>
#include <array>

#include <thread>
#include <mutex>

#include "seriema.h"
#include "utils/TimeHolder.hpp"

using std::vector;
using std::array;

using std::thread;
using std::recursive_mutex;

using std::cout;
using std::cerr;
using std::endl;

using seriema::GlobalAddress;

using seriema::number_processes;
using seriema::process_rank;
using seriema::number_threads;
using seriema::thread_rank;
using seriema::number_threads_process;
using seriema::thread_id;

using seriema::context;
using seriema::queue_pairs;

using seriema::incoming_message_queues;

using seriema::Configuration;

constexpr uint64_t number_operations = 65536;

atomic<uint64_t> aggregate_nanosecond_difference[128];

void tester_thread(int offset) {
    seriema::init_thread(offset);

    atomic<bool> finished = false;
    thread *work_queue_consumer = seriema::get_work_queue_consumer(offset, finished, incoming_message_queues[thread_rank]);

    TimeHolder timer;

    RDMAMemory *source = new RDMAMemory(context, 4096);

    uint64_t received = 0;

    for(uint64_t iteration = 0; iteration < number_operations; iteration++) {
        // if(iteration % 1000 == 0) {
        //     seriema::print_mutex.lock();
        //     cout << "ID = " << thread_id << " iteration = " << iteration << " received = " << received << endl;
        //     seriema::print_mutex.unlock();
        // }

        int destination_thread_id = iteration % number_threads;

        seriema::call_buffer(destination_thread_id, [iteration](void *data, uint64_t size) {
            if(iteration % 1000 == 0) {
                seriema::print_mutex.lock();
                cout << "receiver working on iteration " << iteration << endl;
                seriema::print_mutex.unlock();
            }
        }, source, 0, 4096);
    }

    seriema::call(thread_id, [&finished] {
        finished = true;
    });

    while(!finished) {
    }

    long nanosecond_difference = timer.tick();

    work_queue_consumer->join();

    double message_rate = ((double) (number_operations * 1000000000ULL)) / nanosecond_difference;
    double bandwidth = ((double) (number_operations * 4096)) / (1024 * 1024) / (((double) nanosecond_difference) / 1000000000ULL);

    seriema::print_mutex.lock();
    printf("Rate: %.2f messages/s\nBandwidth: %.2f MB/s\n", message_rate, bandwidth);
    seriema::print_mutex.unlock();

    aggregate_nanosecond_difference[thread_rank] = nanosecond_difference;

    seriema::print_mutex.lock();
    cout << "done" << endl;
    seriema::print_mutex.unlock();

    delete work_queue_consumer;

    seriema::finalize_thread();
}

int main(int argc, char **argv) {
    vector<thread> thread_list;

    if(argc != 2) {
        cerr << "Run with format " << argv[0] << " <number_threads_process>" << endl;
        exit(EXIT_FAILURE);
    }

    number_threads_process = atoi(argv[1]);

    Configuration configuration{number_threads_process};

    seriema::init_thread_handler(argc, argv, configuration);

    for(int i = 0; i < number_threads_process; i++) {
        thread_list.push_back(thread(tester_thread, i));
    }

    for(int i = 0; i < number_threads_process; i++) {
        thread_list[i].join();
    }

    long nanosecond_difference = 0;

    for(auto i = 0; i < number_threads_process; i++) {
        nanosecond_difference += aggregate_nanosecond_difference[i];
    }

    nanosecond_difference /= number_threads_process;

    double message_rate = ((double) (number_operations * 1000000000ULL)) / nanosecond_difference;
    double bandwidth = ((double) (number_operations * 4096)) / (1024 * 1024) / (((double) nanosecond_difference) / 1000000000ULL);

    printf("AVG Rate: %.2f messages/s\nAVG Bandwidth: %.2f MB/s\n", message_rate, bandwidth);

    seriema::finalize_thread_handler();

    return 0;
}