Troubleshooting

“My simulation behaves strangely / jobs don’t move”

• Make sure every component shares the same Environment instance (env=... everywhere).
• Ensure each Server is registered on the same ShopFloor (shopfloor=... when you create the server).

“My due dates look wrong”

• due_date is absolute simulation time. If you want “due in 50 time units”, set due_date=env.now + 50.

“Utilization looks too low”

• utilization_rate is worked_time / env.now. If you run far past the last job completion, utilization drops.

“Parallel Runner crashes on Windows / macOS”

• Put multiprocessing code under if __name__ == "__main__": (see the example in Multi-run experiments).