Multiple runs in omnet++ but with new network

Question

I am trying to get different results for the code I have written in veins. I would like to run simulation multiple times to get average of all result. Issue I am facing is when I use repeat=5 i get exact same result in all 5 runs. I want to regenerate the network each time it repeats. I have written code to place RSUs in random positions but i get same result. What I can try?

score 1 · Accepted Answer · answered Apr 25 '17 at 21:01

1

Frist of all, see the TicToc Tutorial.

For your issue, you need to set a seed for each run as the OMNet Manual show

For me, the best way is set seed-set as the repetition number(repeat)

seed-set = ${repetition}

answered Apr 25 '17 at 21:01

João Batista

128
8

Hi there, I have tried it. Seed-Set doesn't change anything for me. Always I get same answer. – Sam1324 Apr 26 '17 at 07:46
i guess i missed something.. working now.. thank you – Sam1324 Apr 27 '17 at 10:24

score 1 · Answer 2 · answered Apr 26 '17 at 10:55

To start all repetitions of a simulation go to Run Configurations and set Cmdenv as User interface and:

for OMNeT++ 5.0 or older: set * (asterisk) in Runnumber
for OMNeT++ 5.1: set 0..4 in Run(s)

As a result you will obtain five set of results.
Optionally you can choose more than one processes to run in parallel or CPUs/processes to use in Run Configurations.

Multiple runs in omnet++ but with new network

2 Answers2