Mitchell C Kerman writes: > Hi. Chuck Lutz and I are trying to develop a generic queuing system > inside of Ptolemy. The model is a simple customer model in a > supermarket. Customers are generated by a Poisson clock by the Customer > Generator actor. Eventually, each customer will be instantiated in a > multi-instance composite actor (modal model). Currently, we only have > this as the Customer Checkout Modal Model to simulate one customer > (starting small to get this working). We are having a few problems and > have many questions along the way. The model is attached. Our > questions are as follows: > > > > 1. CT director is on the top level of the model. If we put a CT > director inside the Customer Generator, we get no observable output. If > we remove the CT director from the Customer Generator, the display shows > results from the Poisson clock. Why is this?
You should probaby be using DE instead of CT. DE is event oriented, CT is for continuous time models Edward sent a response to Chuck that you might not have seen, see http://ptolemy.eecs.berkeley.edu/mailing-lists/split/0604/RE:_Shared_variables_among_multiple_instances_of_FSMs9 > 2. What are the differences between a parameter, a port, and a > port parameter? How do we pass data between composite actors using > these? Parameters are values that are set inside the actor. Ports are inputs or outputs. PortParameters are either ports or parameters. See http://ptolemy.eecs.berkeley.edu/ptolemyII/ptII5.0/ptII5.0/doc/codeDoc/ptolemy/actor/parameters/PortParameter.html and section 3.3.1 of http://ptolemy.eecs.berkeley.edu/papers/05/ptIIdesign1-intro/ptIIdesign1-intro.pdf > 3. Checkout Process Modal Model will need to be a Mutli-Instance > Composite Actor (to have one instance per register in the store). How > do we dynamically create a new Checkout Process Modal Model with each > firing of the Customer Generator? Offhand, I'm not sure. > 4. We are not able to access the ItemCount parameter inside of a > refinement for Continue Here. Why? Offhand, I'm not sure. > 5. Do you have a list of known current bugs? http://ptolemy.eecs.berkeley.edu/ptolemyII/ptII5.0/limitations.htm > > > Thanks for all of your help, > > Mitchell Kerman _Christopher ---------------------------------------------------------------------------- Posted to the ptolemy-hackers mailing list. Please send administrative mail for this list to: [EMAIL PROTECTED]
