Desenvolvimento e Avaliação de Simulação Distribuída para Projeto de Sistemas Embarcados com Ptolemy

• Autor(a) principal: Negreiros, ângelo Lemos Vidal de
• Data de Publicação: 2014
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFPB
• Texto Completo: https://repositorio.ufpb.br/jspui/handle/tede/6106
• topic: Simulação Heterogênea; Simulação Distribuída; Sistemas Embarcados; Alto desempenho; High Level Architecture (HLA); Ptolemy; Heterogeneous Simulation; Distributed Simulation; Embedded Systems; High Perfomance; High Level Architecture (HLA); Ptolemy; CNPQ::CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO

Nowadays, embedded systems have a huge amount of computational power and consequently, high complexity. It is quite usual to find different applications being executed in embedded systems. Embedded system design demands for method and tools that allow the simulation and verification in an efficient and practical way. This paper proposes the development and evaluation of a solution for embedded modeling and simulation of heterogeneous Models of Computation in a distributed way by the integration of Ptolemy II and the High Level Architecture (HLA), a middleware for distributed discrete event simulation, in order to create an environment with high-performance execution of large-scale heterogeneous models. Experimental results demonstrated that the use of a non distributed simulation for some situations as well as the use of distributed simulation with few machines, like one, two or three computers can be infeasible. It was also demonstrated the feasibility of the integration of both technologies and so the advantages in its usage in many different scenarios. This conclusion was possible because the experiments captured some data during the simulation: execution time, exchanged data and CPU usage. One of the experiments demonstrated that a speedup of factor 4 was acquired when a model with 4,000 thousands actors were distributed in 8 different machines inside an experiment that used up to 16 machines. Furthermore, experiments have also shown that the use of HLA presents great advantages in fact, although with certain limitations.