- time = start_time - end_time;
- double reduce_time = start_time_reduce - end_time_reduce;
- printf("communication time: %le reduce time: %le nanoseconds, "
- "total time: %le nanoseconds\n",communication_time,reduce_time,time);
+ time = end_time - start_time;
+ double reduce_time = end_time_reduce - start_time_reduce;
+ printf("communication time: %le reduce time: %le seconds, "
+ "total time: %le seconds\n",communication_time,reduce_time,time);