Simulation of computer system with a flow alternation between components

The questions of computational modeling of distributed systems are analyzed. For simulation the network calculus method derived from the mini (maxi) plus algebra is considered. The simulation focuses on an area of network systems with a variable flow of data between system components. The simulation is based on use of the extended slope (Legendre) transform to calculate the envelope of the output flow for the system. An example of modeling a computer system with summation of two flows when one flow has T-SPEC shape is presented. The second example deals with system with linear flow change and packetizing effect.