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articles

The author: Veselov A.     Published in № 5(77) 30 october 2018 year
Rubric: Models and Methods

Experimental studies of a distributed model based on Petri nets

The paper presents the results of experimental studies of the effectiveness of the application of distributed models in comparison with their monolithic analogs. As a basic model, models based on the mathematical apparatus of Petri nets are used. In particular, special expansion of ordinary, temporary Petri nets with inhibitory arcs, oriented to modeling of digital devices of automation and computer facilities. A description of the indicators used to evaluate the effectiveness of monolithic and distributed models is given. The advantages and disadvantages of these types of models are discussed. The short description of this model, indexes for assessment of effectiveness and conditions of carrying out an experiment is given. Analysis of effectiveness of the distributed models allowed to select two feature. The first is that, in process of increase in their size, the efficiency factor of the distributed models continuously increases. At the same time, models with the smaller number of hierarchical levels are more efficient. The second feature is that, in process of further increase in the sizes of the distributed models, the effectiveness on speed of models with a large number of hierarchical levels becomes not only equal, but to exceed effectiveness of models with their smaller quantity. It is shown, that high-speed performance of the distributed models can be two orders more, and time of their loading is tens times less, than similar indices at monolithic models.

Key words

distributed and monolete model, Petri nets, component, functional module, proxy, hierarchical reflection, effectivity by speed, loading time, models size.

The author:

Veselov A.

Degree:

Dr of Technique, Department of Electronic Computer, Tver State Technical University

Location:

Tver