Mkaste

Hello all. I'm stuck on a project I'm working on. I'm trying to simulate a supermarket, where the cashiers open new check-outs when necessary (2 are always open and when there are 5 or more in queue they open another). To simulate this I've using 4 servers, with paths leading from the source to the first two nodes, setting up a balking system and then pathing from the first two servers the third server, and then the same for the fourth server, but the supermarket also closes the check-outs when there aren't enough customers to need it and I've been unable to figure out a way to do this. The second way, suggested by my supervisor after discussing the problem, was to use a single server, and adding workers to increase processing speed when enough people are in queue, and removing these when there's only a few people in queue, but I can't figure out how to increase the processing capacity or speed of the server when more workers are assigned to it.