As far as I know traci.simulationStep calls simulationStep on your first
connection created via traci.start, you need to also call conn2.simulationStep.
Instead of calling traci.simulationStep you can get the its connection of the
first client via traci.getConnection, see e.g.
traci.start(sumoCmd, port=8813, label="sim1")
conn1 = traci.getConnection("sim1")
conn1.setOrder(1)
The following snippets should work:
---------------
Client 1:
---------------
sumoBinary =
"C:\\Projekte\\Sumo_Eclipse\\Releases\\sumo-win64-1.1.0\\sumo-1.1.0\\bin\\sumo-gui"
sumoCmd = [sumoBinary, "-c", cfg]
traci.start(sumoCmd, port=8813, label="sim1")
conn1 = traci.getConnection("sim1")
conn1.setOrder(1)
step = 0
while step < 1000:
conn1.simulationStep()
step += 1
conn1.close()
---------------
Client 2:
---------------
traci.init(port=8813, label="sim2")
conn2 = traci.getConnection("sim2")
conn2.setOrder(2)
step = 0
while step < 1000:
conn2.simulationStep()
step += 1
conn2.close()
Von: [email protected] [mailto:[email protected]] Im
Auftrag von [email protected]
Gesendet: Donnerstag, 20. Dezember 2018 15:37
An: [email protected]
Betreff: Re: [sumo-user] two clients, one SUMO connection (python - TraCI)
okey, still not working, here are my to client-snippets:
client1:
# default portPORT = 8813 client2 = Com() class runner: port =
getFreeSocketPort() # if getFreeSocketPort returns None, initialize with
default value if not port: port = PORT sumoBinary = "sumo-gui.exe"
# starting sumo traci.start(cmd=[sumoBinary, "-c",
"pathToConfig\\SUMO\\config.sumo.cfg", "--num-clients", "2"], port=8813) #
establishing client order traci.setOrder(1)
client2:
# default portPORT = 8813 class Com: def traci_client2(self): port
= getFreeSocketPort() # if getFreeSocketPort returns None, initialize
with default value if not port: port = PORT
traci.init(port=8813, label="sim2") conn2 = traci.getConnection("sim2")
conn2.setOrder(2) while traci.simulation.getMinExpectedNumber() >
0: traci.simulationStep()
so, as far as i understand, it stucks while it loads because sumo is waiting
for client2?
Maybe you can see anything in my code.
Thanks and greetings
Gesendet: Donnerstag, 20. Dezember 2018 um 15:13 Uhr
Von: "Benedikt Schott" <[email protected]>
An: "'Sumo project User discussions'" <[email protected]>
Betreff: Re: [sumo-user] two clients, one SUMO connection (python - TraCI)
When the sumo gui has been started, it is waiting for the second client to
connect. Note that you have to call setOrder for all clients and to call
simulationStep for each client to proceed with the simulation
e.g. for the second client:
traci.init(port=xxxx, label="sim2")
conn2 = traci.getConnection("sim2")
conn2.setOrder(2)
step = 0
while step < 1000:
conn2.simulationStep()
step += 1
conn2.close()
Von: [email protected] [mailto:[email protected]] Im
Auftrag von [email protected]
Gesendet: Donnerstag, 20. Dezember 2018 14:22
An: [email protected]
Betreff: Re: [sumo-user] two clients, one SUMO connection (python - TraCI)
thanks for the information Jakob!
So I implemented it, but when I start my runner script, it opens my sumo-gui as
usually, but it's only displaying "starting server on port xxxx" and nothing
happens, just loading. When I'm changing the --num-clients in the traci.start
to "1" it starts normally.
Any ideas?
Greetings
Gesendet: Donnerstag, 20. Dezember 2018 um 11:31 Uhr
Von: "Jakob Erdmann" <[email protected]>
An: "Sumo project User discussions" <[email protected]>
Betreff: Re: [sumo-user] two clients, one SUMO connection (python - TraCI)
see
http://sumo.dlr.de/wiki/TraCI/Interfacing_TraCI_from_Python#Controlling_the_same_simulation_from_multiple_clients
Am Do., 20. Dez. 2018 um 10:52 Uhr schrieb <[email protected]>:
Hello everyone,
so i'm new to SUMO and want to connect two different clients (both python
scripts, Interface: TraCI) to the same SUMO connection.
How can I do that exactly? I read about the simulationSteps from the post
yesterday, but I can't manage to implement it.
Thanks a lot.
Greetings!
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