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Поиск атрибутный
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The optimal distribution in three-level computer networks
Аннотация
The response time of a date processing machine depends on the type of the
user inquiry as well as on the quantity and characters of computers in the
upper levels of the networks. The main problem of the networks design is to
minimize the acquistion expenditure of date processing machines and
computers if the estimates of the response time are fixed. We consider the
three-level hierarchical networks lake tickets booking systems when the
number of the date processing machines in the lower level is much more than
the computers in the upper levels. The elements of the upper level are
connected with the computers of the middle level which have the inputs from
the date processing machines of the lower level. These ones receive the random
flows of inquiries from clients. The main processing is carried out in the middle
level. A part of information is passed to the centre. There are the restrictions
of the expectation time in the queues of clients. The number of the processing
date machines is limited too. Definitively a linear programming problem with
integer variables is obtained. The application of the decomposition methods for
this problem is analysed in detail.
Ключевые слова
linear programming, hierarchical optimization, networks design
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