Modeling and simulation of relations among real-time computational tasks using graphical interfaces

• Grant number: 17/06737-6
• Support Opportunities: Scholarships in Brazil - Master
• Start date: September 01, 2017
• End date: August 31, 2019
• Field of knowledge: Physical Sciences and Mathematics - Computer Science - Computer Systems
• Principal Investigator: Aleardo Manacero Junior
• Grantee: Fernanda Fernandes Peronaglio
• Host Institution: Instituto de Biociências, Letras e Ciências Exatas (IBILCE). Universidade Estadual Paulista (UNESP). Campus de São José do Rio Preto. São José do Rio Preto , SP, Brazil

Abstract

Real-time systems form an important class of computacional applications, once the number of human acessories focused on the automation of activities is increasing like the self-guided vehicle in test stage. As many of the real-time systems are critical, depending vigorously on the fulfillment of the tasks within correct intervals, the analysis of it's performance is very important. This analysis goes better when conducted by simulation, avoiding risks wich possibly would exist if it would be performed in real environment.However, tasks simulators normaly mold them as independent workload blocks. Althought this is correct for many systems, it is not always true for real-time systems, because this applications usually shows relations of dependence on each other. In some simulators this is solved by forcing the user to write a model in a specific language, which complicates the simulation work.Therefore the objective of this paper is to propose and to implement techniques that allow the molding of the interactions between real-time tasks through visual interfaces, without commit the simulation engine's correction. This permits the user to focus on the problem to be simulated rather than on system detail programming, improving the efficiency of this process.As a basis for the execution of this paper will be used the RTsim simulator, which already presents interesting characteristics of simulation, like interface to mold schedulers and to assistance on teaching. Just as other simulators, RTsim treats tasks as independent blocks of work, which commits partially its application. The result of this paper will first be the definition of relationships molding procedures between tasks that can be applied in real-time as much as in any system in which these relationships exist (competition, parallelism, etc.), and then obtaining a simulator presenting a greater facility and a correction in the molding process. (AU)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

PERONAGLIO, Fernanda Fernandes. Modeling of tasks interactions using graphical interfaces applied in real-time systems. 2019. Master's Dissertation - Universidade Estadual Paulista (Unesp). Instituto de Biociências Letras e Ciências Exatas. São José do Rio Preto São José do Rio Preto.