JDEQSIM vs QSIM about matsim-code-examples HOT 5 CLOSED

If I am not mistaken, currently the Qsim is the default mobility simulator in MATSim.
The JDEQSim output config parameters are printed by default (those parameters are not used) to the output config file (even if JDEQSim is not specified as the current mobsim)

Check out the MATSim book which I think covers this (page 6):

You can always use the controller to set the mobsim to use Qsim:
config.controler().setMobsim("qsim");

from matsim-code-examples.

I'm aware of QSIM being the default mobsim, but I am curious to know when and in what cases it is overridden, and how can I know when that is happening, if the JDEQSIM is still printing to the config, for instance.

from matsim-code-examples.

JDEQSim is an alternative implementation of a mobility simulation for MATSim, but it does not provide support for all the features. Public Transport and Traffic lights for example are only supported when QSim is used, not in JDEQSim.

In the configuration output, in the controler-module, there should be a parameter "mobsim" which specifies which mobility simulation is used. Make sure it is set to "qsim" to be sure that QSim is used.

from matsim-code-examples.

Okay, that's good to know. Is there a way to turn off printing modules to the config when they are not used?

from matsim-code-examples.

Is there a way to turn off printing modules

None that I'm aware of.

If you want to exclude a single module, you could try something like this:

Config config = ConfigUtils.loadConfig("path/to/my/config.xml");
config.removeModule(JDEQSimConfigGroup.NAME);

But that's rather cumbersome.

from matsim-code-examples.