A Decision Model for Closed Queuing Networks

This paper considers a computer configuration design problem. The computer system is modeled by a closed queuing network. The system throughput is the objective function to be maximized and the speed of the devices are the decision variables. A rich class of nonlinear cost functions is considered. It is shown that any local optimum of the optimization problem is also a global optimum. It is also shown that the cost constraint is active and that the method of Lagrange multipliers can be used to solve the problem efficiently. Copyright © 1979 by The Institute of Electrical and Electronics Engineers, Inc.