Open AccessOPTIMIZATION OF COMPUTING PROCESS OF THE ONBOARD COMPUTING SYSTEMS
Author(s) -
S. V. Nazarov
Publication year - 2018
Publication title -
izvestiâ ûgo-zapadnogo gosudarstvennogo universiteta
Language(s) - English
Resource type - Journals
eISSN - 2686-6757
pISSN - 2223-1560
DOI - 10.21869/2223-1560-2018-22-2-6-17
Subject(s) - computer science , multiprocessing , schedule , process (computing) , distributed computing , reliability (semiconductor) , supercomputer , symmetric multiprocessor system , parallel processing , construct (python library) , relevance (law) , set (abstract data type) , parallel computing , operating system , power (physics) , physics , quantum mechanics , political science , law , programming language
Relevance of scope of parallel calculations was realized for a long time at the solution of complex scientific and technical challenges, as in connection with low reliability and productivity of computers, and in connection with emergence of the multiprocessor systems and multinuclear processors. The technology of ensuring reliability and high efficiency on the basis of parallel calculations naturally became prevailing in the onboard computing systems (OCS). Now such systems find broad application in aircraft and space equipment, and also in land and water mobile objects. Efficiency of performance of objectives, safety, operational suitability and some other important qualities of mobile objects considerably are defined by ability of the onboard computing system to carry out the functions. Development of the onboard equipment is characterized by constant increase in number of the solved tasks and increase of their complexity, expansion of intellectual and adaptive opportunities. It inevitably leads to complication of BVS, its operating system and the special software. For the period of the solution of the majority of the tasks assigned to BVS rigid temporary restrictions are imposed. Performance of these of the requirement results in need of the organization of parallel computing processes. In this work set of mathematical models, formulations of the tasks and approaches to their decision allowing to construct the schedule of parallel computing process for realization of the information and connected tasks on the multiprocessor onboard computing systems is presented. Models of sets of the solved tasks in the form of the loaded count and in a yarusno-parallel form, the solution of tasks on purposes of the solved tasks to processors and algorithm of drawing up the schedule of parallel computing process are given.