Exemplo n.º 1
0
    inline void executeThreadWork()
    {
        job_type* job = NULL;
        m_numthrs = omp_get_num_threads();

        m_timers.change(TM_WORK);
        m_logger.start();
        m_work_logger.start();

        while (true)
        {
            while (m_queue.try_pop(job))
            {
                m_logger << m_queue.unsafe_size();

                if (job->run(m_cookie))
                    delete job;
            }

            DBG(debug_queue, "Queue" << m_id << " is empty");

            // no more jobs -> switch to idle
            m_timers.change(TM_IDLE);
            ++m_idle_count;

            m_logger << m_queue.unsafe_size();
            m_work_logger << (m_numthrs - m_idle_count);

            while (!m_queue.try_pop(job))
            {
                DBG(debug_queue, "Idle thread - m_idle_count: " << m_idle_count);

                if ( //!m_group->assist(m_id) &&
                    m_idle_count == m_numthrs)
                {
                    // assist other JobQueues before terminating.
                    while (m_group->assist(m_id)) { }
                    return;
                }
            }

            // got a new job -> not idle anymore
            m_timers.change(TM_WORK);
            --m_idle_count;

            m_logger << m_queue.unsafe_size();
            m_work_logger << (m_numthrs - m_idle_count);

            if (job->run(m_cookie))
                delete job;
        }
    }
Exemplo n.º 2
0
    //! try to run one jobs from the queue, returns false if queue is finished,
    //! true if ran jobs or queue not finished.
    bool try_run()
    {
        job_type* job = NULL;

        if (!m_queue.try_pop(job))
            return (m_idle_count != m_numthrs);

        m_logger << m_queue.unsafe_size();

        if (job->run(m_cookie))
            delete job;

        return true;
    }
Exemplo n.º 3
0
    void numaLoop(int numaNode, int numberOfThreads)
    {
        m_timers.start(omp_get_max_threads());

#pragma omp parallel num_threads(numberOfThreads)
        {
            // tie thread to a NUMA node
            numa_run_on_node(numaNode);
            numa_set_preferred(numaNode);

            executeThreadWork();
        }   // end omp parallel

        m_timers.stop();

        assert(m_queue.unsafe_size() == 0);
    }
Exemplo n.º 4
0
    void loop()
    {
        m_timers.start(omp_get_max_threads());
        m_idle_count = 0;

#pragma omp parallel
        {
            if (gopt_memory_type == "mmap_node0")
            {
                // tie thread to first NUMA node
                numa_run_on_node(0);
                numa_set_preferred(0);
            }

            executeThreadWork();
        }   // end omp parallel

        m_timers.stop();

        assert(m_queue.unsafe_size() == 0);
    }
Exemplo n.º 5
0
 void enqueue(job_type* job)
 {
     m_queue.push(job);
     m_logger << m_queue.unsafe_size();
 }