[ewilliams]

Excellent comments. A bank (opens empty and idle each day) model does not require warm-up (and indeed should not have warm-up). Common examples of situations requiring warm-up are manufacturing in general, hospital emergency rooms, 24-hour telephone exchanges, etc. Sometimes it is possible to shorten the amount of warm-up required by initializing storages (buffers) in the simulation model to half-full (versus default of empty), thus starting the model closer to average conditions. Let us say model results are collected and analyzed in 5-day week units, and 4.3 days of warm-up are required. It is better and more convenient to warm up the model for 5 days (one weekly unit) to make its results easier to interpret.