call_buffer_aggregator_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
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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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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"

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::thread_context;

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

using seriema::incoming_message_queues;

using seriema::RDMAMessengerGlobal;
using seriema::RDMAAggregatorGlobal;

using seriema::Configuration;

constexpr uint64_t number_operations = 6553600;

atomic<uint64_t> aggregate_nanosecond_difference[128];

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

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

    RDMAMessengerGlobal messenger;

    ChunkMemoryAllocator chunk_allocator{thread_context->global_allocator};

    RDMAAggregatorGlobal aggregator{&chunk_allocator, &messenger};

    TimeHolder timer;

    uint64_t received = 0;

    for(uint64_t iteration = 0; iteration < number_operations / number_threads; 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;
        
        bool result = aggregator.call_buffer(destination_thread_id, [iteration](void *buffer, uint64_t size) {
                if(iteration % 10000 == 0) {
                    seriema::print_mutex.lock();
                    cout << "receiver working on iteration " << iteration << "(buffer = " << buffer << ", size = " << size << ")" << endl;
                    seriema::print_mutex.unlock();
                }
            }, source, 0, 4096);
        
        if(!result) {
            iteration--;
            messenger.process_calls_all();
        }
        else if(iteration % 10000 == 0) {
            messenger.process_calls_all();
        }
    }

    Synchronizer flush_synchronizer{(uint64_t) number_threads};

    aggregator.shutdown_all(&flush_synchronizer);

    while(flush_synchronizer.get_number_operations_left() > 0) {
        messenger.process_calls_all();
        aggregator.flush_all();
        cout << "waiting for incoming shutdown (1)" << endl;
    }

    while(!messenger.get_incoming_shutdown_all()) {
        messenger.process_calls_all();
        cout << "waiting for incoming shutdown (2)" << endl;
    }

    long nanosecond_difference = timer.tick();

    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();

    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;
}