V.F. Bezzubov - Ph. Dr. (Eng.), Closed joint-stock company «Promtechelectronica» (St. Petersburg). E-mail: Bezzubov_vf@mail.ru Y.N. Muzelin - Ph. Dr. (Eng.), Open join-stock company «ALL-Russian Scientific-Research Institute of Radio Equipment» («VNIIRA» JSC) (St. Petersburg). E-mail: yuri.muzelin@gmail.com

During the design phase of information-measuring and controlling computer systems it is necessary to make a preliminary analysis of possible ways of organizing information exchange and to obtain the specification of the designed system structure as well as to implement a preliminary assessment of the temporal characteristics of the designed data transmission systems. The article details the analysis of data exchange between multicomputer complex-s elements in order to reduce the time of exchange with different methods of data exchange between complex-s computing modules. Intercomputer exchange efficiency is largely determined by the total bandwidth line, which unites complex-s computing modules and by organization of intercomputer exchange, as well as structure of aggregation module and the frequency of data transmission on internal routes involved in the exchange. Between the considered exchange organizing method the shortest transmission information time can be obtained in case of union of the internal routes by computing modules involved in the exchange. Combining internal roads computing modules can be implemented on the basis of the traditional methods of exchange, widely described in the literature and promising methods of exchange, such as the module-based intercomputer integration and communication method based on rewiring memory. Intercomputer integration is based on a mechanism of direct memory access and interface box, which reduces the exchange of information between the equivalent computing modules and provide access to the computing module with a failed processor memory. The exchange method based on the memory unit rewiring designed for using between the computing modules having different levels of priority, wherein the independence of the data array transmission time from its quantity is achieved. As a result the morphological model of the devices class and methods of information exchange is obtained which allows at the design phase of information-measuring and controlling computer systems to implement a preliminary analysis of possible ways of organizing information exchange, to obtain a designed systems structure-s specification and to make a preliminary assessment of the temporal characteristics of the designed transmission data systems.

 

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