Calculation and modeling of heterogeneous closed multichannel queuing networks
Jazyk: | ruština |
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Rok vydání: | 2022 |
Předmět: | |
DOI: | 10.18720/spbpu/3/2022/vr/vr22-1010 |
Popis: | Тема вÑпÑÑкной квалиÑикаÑионной ÑабоÑÑ: «РаÑÑÑÑ Ð¸ моделиÑование неодноÑоднÑÑ Ð·Ð°Ð¼ÐºÐ½ÑÑÑÑ Ð¼Ð½Ð¾Ð³Ð¾ÐºÐ°Ð½Ð°Ð»ÑнÑÑ ÑеÑей маÑÑового обÑлÑживаниÑ». Ð ÑÑой ÑабоÑе пÑоведено иÑÑледование ÑÑда алгоÑиÑмов ÑаÑÑÑÑа показаÑелей замкнÑÑÑÑ ÑеÑей маÑÑового обÑлÑÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ ÑазлиÑнÑÑ Ñипов. УказаннÑе алгоÑиÑмÑ, доведеннÑе до пÑогÑаммной ÑеализаÑии, оÑÐ½Ð¾Ð²Ð°Ð½Ñ Ð½Ð° иÑполÑзовании меÑода баланÑа заÑвок и на инÑÑ Ð¿Ð¾Ð´Ñ Ð¾Ð´Ð°Ñ . ÐÑоме Ñого, в ÑабоÑе пÑоведен анализ погÑеÑноÑÑей ÑаÑÑÑÑа показаÑелей ÑазлиÑнÑÑ Ð·Ð°Ð¼ÐºÐ½ÑÑÑÑ ÑеÑей Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿ÑедлагаемÑÑ Ð°Ð»Ð³Ð¾ÑиÑмов.Ð Ñ Ð¾Ð´Ðµ ÑабоÑÑ Ð¿Ñоведено ÑÑавнение ÑÑÑеÑÑвÑÑÑÐ¸Ñ Ð¸ пÑедлагаемÑÑ Ð°Ð»Ð³Ð¾ÑиÑмов ÑаÑÑеÑа показаÑелей ÑазлиÑнÑÑ Ð·Ð°Ð¼ÐºÐ½ÑÑÑÑ ÑеÑей маÑÑового обÑлÑÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ Ð½Ð° ÑÑде ÑпеÑиалÑно ÑÑоÑмиÑованного множеÑÑва пÑимеÑов ÑÐ°ÐºÐ¸Ñ ÑеÑей. ТеÑÑиÑование ÑеализованнÑÑ Ð°Ð»Ð³Ð¾ÑиÑмов и анализ Ð¸Ñ ÑоÑноÑÑи пÑоводилоÑÑ Ñ Ð¸ÑполÑзованием имиÑаÑионного моделиÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² ÑиÑÑеме GPSS World. Ð ÑезÑлÑÑаÑе пÑоведÑннÑÑ Ð¸ÑÑледований можно ÑделаÑÑ Ð²Ñвод, ÑÑо ÑазÑабоÑаннÑе алгоÑиÑмÑ, незнаÑиÑелÑно ÑÑÑÑÐ¿Ð°Ñ Ð² ÑоÑноÑÑи имиÑаÑÐ¸Ð¾Ð½Ð½Ð¾Ð¼Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑованиÑ, позволÑÑÑ ÑÑÑекÑивно ÑеÑаÑÑ Ð½Ðµ ÑолÑко задаÑи анализа, но и опÑимизаÑии замкнÑÑÑÑ ÑеÑей маÑÑового обÑлÑживаниÑ. ÐолÑÑеннÑе в Ñ Ð¾Ð´Ðµ ÑабоÑÑ Ð°Ð»Ð³Ð¾ÑиÑÐ¼Ñ Ð¼Ð¾Ð³ÑÑ Ð½Ð°Ð¹Ñи пÑименение Ð´Ð»Ñ ÑаÑÑÑÑа показаÑелей и опÑималÑного вÑбоÑа паÑамеÑÑов ÑазлиÑного вида обÑекÑов, коÑоÑÑе могÑÑ Ð±ÑÑÑ Ð°Ð´ÐµÐºÐ²Ð°Ñно пÑедÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ñ Ð¸ÑполÑзованием ÑоÑмализма замкнÑÑÑÑ ÑеÑей маÑÑового обÑлÑÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ (пÑоизводÑÑвеннÑÑ ÑиÑÑем, компÑÑÑеÑнÑÑ ÑеÑей, пÑоÑоколов пеÑедаÑи даннÑÑ Ð¸ Ñ. п.). РвÑÐ²Ð¾Ð´Ð°Ñ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¿ÑÑи далÑнейÑего ÑÑовеÑÑенÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ ÑозданнÑÑ Ð² ÑÐ°Ð¼ÐºÐ°Ñ ÑабоÑÑ Ð¿ÑогÑаммнÑÑ ÑеализаÑий алгоÑиÑмов. The topic of the final qualifying work: "Calculation and modeling of heterogeneous closed multichannel queuing networks". In this work, a few algorithms for calculating indicators of closed queuing networks of various types have been studied. These algorithms, brought to software implementation, are based on the use of the application balance method and other approaches. In addition, the paper analyzes the errors in calculating the indicators of various closed networks using the proposed algorithms.In course of the work, a comparison of existing and proposed algorithms for calculating the indicators of various closed queuing networks was carried out on several specially formed set of examples of such networks. Testing of the implemented algorithms and analysis of their accuracy was carried out using simulation modeling in the GPSS World system. As a result of the conducted research, it can be concluded that the developed algorithms, slightly inferior in accuracy to simulation modeling, make it possible to effectively solve not only the problems of analysis, but also optimization of closed queuing networks.The algorithms obtained in the work can be used to calculate indicators and optimal selection of parameters of various types of objects that can be adequately represented using the formalism of closed queuing networks (production systems, computer networks, data transmission protocols, etc.). The conclusions set out ways to further improve the software implementations of algorithms created in the work. |
Databáze: | OpenAIRE |
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