While building simulation models can be instructive and informative, forcing you to make unstated assumptions explicit, and reflect on the behavioral logic of agents in a system, actually running a simulation can provide a vast amount more insight into a system.
Executing a simulation once, or performing a "single run" may be useful when:
you're developing a simulation, and you want to sense-check its behavior, or its ability to run;
you want to quickly see the impact of a specific behavior or parameter change;
you want to inspect a simulation's logic or visuals, or a demo of the same.
Running Simulations
hCore
Load a simulation into hCore.
Initiate a single-run simulation by clicking the "Run" button (the 'running man' icon).