164     util::my_time_t tm_init, tm_start, tm_end;  in main()  local
171     tm_start = util::gettime();  in main()
172     std::cout << "Init time: " << util::time_diff(tm_init, tm_start)  in main()
174     tm_start = util::gettime();  in main()
177     std::cout << "Serial time: " << util::time_diff(tm_start, tm_end)  in main()
590     util::my_time_t tm_init, tm_start, tm_end;  in main()  local
608         tm_start = util::gettime();  in main()
610                   << " threads: " << util::time_diff(tm_init, tm_start)  in main()
613         tm_start = util::gettime();  in main()
616         std::cout << "Time on " << nthreads << " threads: " << util::time_diff(tm_start, tm_end)  in main()
637         tm_start = util::gettime();  in main()
639                   << " threads: " << util::time_diff(tm_init, tm_start)  in main()
642         tm_start = util::gettime();  in main()
645         std::cout << "Time on " << nthreads << " threads: " << util::time_diff(tm_start, tm_end)  in main()