On Dec 15, 2004, at 4:22 AM, Rob Alexander wrote: >> However it complicates the distinction between steps (ticks) and time. > > Sorry, I don't understand quite what you mean. Going from discrete-time > to discrete events complicates real-time running and visualisation but > I > don't see what effect just moving to a real-valued schedule has. Just this: if you have previously been building simulations on the assumption that steps==time, you'll have problems. Where that is most likely to crop up is running the main() loop or outputting statistics tied to ticks. These are pretty easy things to change though. The #1 problem with going to a real-valued schedule is that it is somewhat slower. Most of our simulations have seen a 3%-5% hit. This is probably acceptable for most people however, I'd imagine. Sean