Re: [sumo-user] How to controll multiple connections to the same sumo se

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

No, that is currently not supported. You will have to ensure that all clients play along.

In fact, all clients should be structured around a loop as below:

while keepRunning():

   optionallyDoStuff()

   traci.simulationStep()

If you need to coordinate among the clients, you could use the getParameter / setParameter API  (e.g. on the ego vehicle, a POI or some other pre-selected simulation object) to exchange arbitrary information.

2018-08-09 16:53 GMT+02:00 <cchadj01@xxxxxxxxxxxx>:

Hello,
 Thank your for the answer!
 I tried that and it indeed gives the turn to the other client,
 the other client freezes on the next traci command until control is released.

 What if the client doesn't want to give up the turn and make a couple of simulation
 steps without losing control?
 I think I could use  traci.SimulationStep(anyNumberOfSteps)but that wouldn't allow me to dynamically change the state of the simulation (except with the use
of listeners).
 Is there a way to make multiple single simulation steps without losing control?

Thank you,
Tom

Quoting Jakob Erdmann <namdre.sumo@xxxxxxxxx>:

To give up the turn, the client can just call traci.simulationStep()

regards,
Jakob

2018-08-09 12:12 GMT+02:00 <cchadj01@xxxxxxxxxxxx>:

Hello,

 I have a Sumo server fire up from sumo-gui.exe from the command line like
so:
 sumo-gui.exe -c simpgrid.sumocfg --remote-port 9999 --num-clients 2

 I have a client in python and I want to connect two of them at the same
server.
 I do so and set then the connection1.setOrder(1) for the first client and
connection1.setOrder(2)
 for the second one.
 This works properly but I noticed that you can send a number of requests
from the first client
 and then the other clients just waits until it is its turn to send
requests.

 I was wondering if a client can give up its turn if it doesn't need to
send any requests at the
 given moment.
 I want to do this in order to send only some commands from the second
client and have the first
 client do most of the work.

Thanks,
Tom

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