Hi,
I did try setting the port in the following command :
traci.start([checkBinary('sumo'),
"-c", "config.sumocfg", "--remote-port", "64600", "--step-length", "0.5",
'--save-state.rng', "--step-method.ballistic", "--load-state",
'saved_simulation'])
But I get an error that says, "Error: A value for the option 'remote-port'
was already set."
I am starting simulations from saved states
On Mon, Jan 4, 2021 at 3:24 AM Jakob Erdmann <[email protected]> wrote:
> traci.start tries to find an unused port. Possibly, you are creating so
> many simulations that this fails and two simulations try to use the same
> port.
> One work-around could be to manage ports yourself and set them explicitly
> in traci.start.
>
> Am Mi., 23. Dez. 2020 um 18:59 Uhr schrieb . Abdullah <[email protected]>:
>
>> Hi,
>>
>> I was running multiple simulations together, sometimes simultaneously and
>> some of mine simulation ends with either one of the two errors:
>>
>> *Error 1:*
>>
>> traci.start([checkBinary('sumo'), "-c", "config.sumocfg",
>> "--step-length", "0.5", '--save-state.rng', "--step-method.ballistic",
>> "--no-step-log", "--no-warnings", "--load-state", 'saved_simulation'])
>> File "/home/ab11/sumo/tools/traci/main.py", line 158, in start
>> return init(sumoPort, numRetries, "localhost", label, sumoProcess)
>> File "/home/ab11/sumo/tools/traci/main.py", line 136, in init
>> _connections[label] = connect(port, numRetries, host, proc)
>> File "/home/ab11/sumo/tools/traci/main.py", line 127, in connect
>> raise FatalTraCIError("Could not connect in %s tries" % (numRetries +
>> 1))
>> traci.exceptions.FatalTraCIError: Could not connect in 11 tries
>>
>> *Error 2:*
>>
>> traci.start([checkBinary('sumo'), "-c", "config.sumocfg",
>> "--step-length", "0.5", '--save-state.rng', "--step-method.ballistic",
>> "--no-step-log", "--no-warnings", "--load-state", 'saved_simulation'])
>> File "/home/ab11/sumo/tools/traci/main.py", line 158, in start
>> return init(sumoPort, numRetries, "localhost", label, sumoProcess)
>> File "/home/ab11/sumo/tools/traci/main.py", line 138, in init
>> return getVersion()
>> File "/home/ab11/sumo/tools/traci/main.py", line 246, in getVersion
>> return _connections[""].getVersion()
>> File "/home/ab11/sumo/tools/traci/connection.py", line 345, in
>> getVersion
>> result = self._sendCmd(command, None, None)
>> File "/home/ab11/sumo/tools/traci/connection.py", line 178, in _sendCmd
>> return self._sendExact()
>> File "/home/ab11/sumo/tools/traci/connection.py", line 90, in _sendExact
>> prefix = result.read("!BBB")
>> File "/home/ab11/sumo/tools/traci/storage.py", line 40, in read
>> return struct.unpack(format, self._content[oldPos:self._pos])
>> struct.error: unpack requires a buffer of 3 bytes
>>
>>
>> I cannot seem to figure out why this happens. If anyone can give a little
>> insight on them, then it would be great.
>>
>> --
>> Thank you.
>> Abdullah
>> _______________________________________________
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>> To unsubscribe from this list, visit
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>>
> _______________________________________________
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--
Thank you.
Abdullah
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