Re: [sumo-user] Replications with different seeds from TRACI

[Hervé Diedie <hervediedie@xxxxxxxxx>]

After considering using Libtraci instead of TraCIAPI and after browsing the Libtraci folder in the Simulation.cpp file, a quick check-up of Simulation::start ()  function member showed the following instructions:

#ifdef WIN32
    FILE* pipe = _popen(oss.str().c_str(), "r");
#else
    FILE* pipe = popen(oss.str().c_str(), "r");

meaning that in the  command line embedded in oss.str()   the referred file  (i.e sumo or sumo-gui) will be opened locally.

Therefore my two questions still stand:

Do SUMO and OMNeT++ must be necessarily installed on the same machine to run a simulation campaign with many replications ?

  ... if so, what's the point of using a client-server scheme to bind the two software through TraCI ?

Best regards.

Le ven. 10 sept. 2021 à 16:41, Hervé Diedie <hervediedie@xxxxxxxxx> a écrit :

So, must I consider using Libtraci instead of TraCIAPI ?

Le ven. 10 sept. 2021 à 14:47, <Matthias.Schwamborn@xxxxxx> a écrit :

This looks like a misunderstanding. “Wherever” here means “wherever in your code” (and not in terms of your machine).

 

Best regards, Matthias

 

From: sumo-user <sumo-user-bounces@xxxxxxxxxxx> On Behalf Of Hervé Diedie
Sent: Freitag, 10. September 2021 16:07
To: Sumo project User discussions <sumo-user@xxxxxxxxxxx>
Subject: Re: [sumo-user] Replications with different seeds from TRACI

 

In other words, SUMO and OMNeT++ must be installed on the same host... if so, what's the point of using a client-server scheme to bind the

two software through TraCI ?

 

Le ven. 10 sept. 2021 à 12:11, Jakob Erdmann <namdre.sumo@xxxxxxxxx> a écrit :

The same idea applies: wherever you start the sumo process, add those options.

 

Am Fr., 10. Sept. 2021 um 12:28 Uhr schrieb Hervé Diedie <hervediedie@xxxxxxxxx>:

Actually, I'm using Traci for c++  within OMNeT++ simulator, not the python version..

 

Le ven. 10 sept. 2021 à 08:49, Jakob Erdmann <namdre.sumo@xxxxxxxxx> a écrit :

Add options ["--seed", str(yourseed)] to the traci.start call.

 

Am Do., 9. Sept. 2021 um 17:40 Uhr schrieb Hervé Diedie <hervediedie@xxxxxxxxx>:

Hi all,

How can I launch a simulation campaign with reproducible replications with different seeds from Traci ?

 

Beat regards.

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