Re: [sumo-user] sumo multi-client feature

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

Hello,

All clients must call simulationStep on their own connection to let the simulation advance.

Note, that traci.start() does not return a connection object but you can retrieve it using traci.getConnection().

regards,

Jakob

Am Mi., 19. Dez. 2018 um 13:42 Uhr schrieb Benedikt Schott <benedikt.schott@xxxxxxxx>:

Dear developers,

 

I am trying to connect multiple traci clients to sumo. Is this feature fully supported in the current release 1.1.0?

 

In a last step we want to combine the c++ traci client and another python client. We have tested both, 2 python clients, 2 c++ clients, and combinations. None of them are working in our setup so far.

 

We are using the following workflow, however are not able to control sumo simulation steps or access the subscription when using more than one client:

 

1.       Set “num-clients 2” option in the config file (we also tried the command line option)

2.       sumoCmd = ["sumo", "-c", cfg]
connection1 = traci.start(sumoCmd, port=8813)

traci.setOrder(1)
connection2 = traci. connect(port=8813, numRetries=10, host="localhost")

connection2.setOrder(2)

 

step = 0

while step < 1000:

    traci.simulationStep()              

    step+=1

 

Is there anything else to do?

 

 

Mit freundlichen Grüßen

 

Dr.-Ing. Benedikt Schott

Senior Entwickler Simulationslösungen

☏ +49 89 74 7377-41

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Geschäftsführung: Dr. Cornelius Chucholowski, Maximilian Chucholowski

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