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Article title REALIZATION OF DISTRIBUTED COMPUTING IN SIMULATION SYSTEM OF MODELING THE AUTONOMOUS UNDERWATER VEHICLE OPERATION
Authors L.A. Martynova
Section SECTION III. DISTRIBUTED COMPUTING AND SYSTEMS
Month, Year 11, 2016 @en
Index UDC 519.87
DOI 10.18522/2311-3103-2016-11-100112
Abstract Realization of the distributed calculations when developing complex imitating model of functioning of the independent uninhabited submersible is described. The realization of distributed computing in the development of an integrated simulation model of autonomous underwater vehicle operations. Integrated simulation model is generated from simulation models that reproduce the functioning of autonomous underwater vehicle and its parts, depending on the environment, i.e. the marine environment and the availability of other facilities. Simulation models differ in repeatable processes and level of detail. The maximum degree of detail is provided by the literal reproduction of information processing algorithms in the onboard calculator. However, for most applications this degree of detail is superfluous, therefore more appropriate is the use of simulation models, which are the result of aggregating the more detailed models. The paper discusses various problems associated with the need of modeling the functioning of autonomous underwater vehicle, and the corresponding level of detail reproducible processes. This solves the problem of interaction of individual simulation models in the framework of a single integrated simulation model. The requirements to be met by the organization of interaction between the simulation models: independently, in parallel, simultaneously, with the universal exchange of information. As a solution to this problem of interaction simulation models it is proposed to use the distributed and parallel computing. In order to ensure their implementation developed are the approaches to their formation, described are the principles of the implementation of distributed computing, the positive aspects of their use are marked. Implementation of distributed and parallel computing has led to an acceleration of the computing process by overlapping computation, reduction in labor costs for the development of programs due to independence of their development, simplifying the error localization, use of common databases, the possibility of using the removed located computers, redistribution (if possible) of computing resources between computers. The use of distributed com-puting has allowed us to more effectively conduct the debugging in individual simulation models, significantly reduce the time for the formation of an integrated simulation model, organize less expensive computational process, promptly conduct research using simulation, which in turn led to a significant reduction in computing time for numerical experiments. On concrete examples showed are the benefits of using the distributed computing with the development of an integrated simulation model of the functioning of autonomous underwater vehicle.

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Keywords Parallel and distributed computing; simulation system; simulation model; aggregation; de-composition.
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