Veins simulation running very slow

问题:

I am running Veins simulation with 25 cars and 100 Rsu's. Simulation is running awfully slow. I tried with the example given and the case is same. What can I do ? I have tried with Release mode, switching off animations, with command mode, increased number of parallel processes from 1 to 4. Nothing is helping, in express mode it slows down to milliseconds.

Update: Simulation has become more slow when more message are sent and received. With 5 cars and 50 RSU with Range of 500 meter this is my simulation speed:

** Event #27359744 t=46.268980990815 Elapsed: 5387.036s (1h 29m) 46% completed Speed: ev/sec=4094.07 simsec/sec=0.00195494 ev/simsec=2.09421e+006 Messages: created: 21616816 present: 20679 in FES: 20123

Currently using command mode.

回答1:

I figured it out why simulation was slow, events per seconds were ev/simsec=2.09421e+006. So I debugged the code and found that for every message RSU receives it sends a message back. So after removing this the simulation is running much faster.