Optimization of ability to handle customers of opened queueing network

In this paper a problem of a maximization for an ability to handle customers of an opened queueing network is put and is solved. The ability to handle customers of the opened queueing network is a maximal input flow intensity, for which the network is not overloaded. It is represented as some nondifferantiable function of mean numbers of nodes attendances. This function is optimized by some decomposition algorithm.