To run the model, you actually should run one of its experiments. By default each model has one simulation experiment named Simulation.
Simulation experiment is the simplest type of experiment that enables to create animation for a model and simulate it for some time with the visualization.
Running the simulation, you automatically bring the current model up to date.
To run the previously launched experiment
Having launched the model, you will see the model window. It displays the presentation of the top-level agent of this experiment (by default it is Main).
By default, the model window opens in the Chromium browser. You can select a different browser in the Preferences dialog.
When you run the model, it is launched automatically. If you
need to see the experiment screen before launch (e.g. you've
added some controls to tweak the model parameters, or you have placed
the model description there), then go to the properties of the Simulation experiment and deselect the Skip experiment screen and run the model option.
With this option deselected, you will see the experiment
presentation when the model window opens. To launch the model, click
the Run
button.