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Previous issue date: 2014-02-21 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Alongside the advances of technologies, embedded systems are increasingly
present in our everyday. Due to increasing demand for functionalities, many
tasks are split among processors, requiring more efficient communication
architectures, such as networks on chip (NoC). The NoCs are structures that
have routers with channel point-to-point interconnect the cores of system on
chip (SoC), providing communication. There are several networks on chip in the
literature, each with its specific characteristics. Among these, for this work was
chosen the Integrated Processing System NoC (IPNoSyS) as a network on chip
with different characteristics compared to general NoCs, because their routing
components also accumulate processing function, ie, units have functional able
to execute instructions. With this new model, packets are processed and routed
by the router architecture. This work aims at improving the performance of
applications that have repetition, since these applications spend more time in
their execution, which occurs through repeated execution of his instructions.
Thus, this work proposes to optimize the runtime of these structures by
employing a technique of instruction-level parallelism, in order to optimize the
resources offered by the architecture. The applications are tested on a
dedicated simulator and the results compared with the original version of the
architecture, which in turn, implements only packet level parallelism / Com os avan?os tecnol?gicos os sistemas embarcados est?o cada vez mais
presentes em nosso cotidiano. Devido a crescente demanda por
funcionalidades, as fun??es s?o distribu?das entre os processadores,
demandando arquiteturas de comunica??o mais eficientes, como as redes em
chip (Network-on-Chip - NoC). As NoCs s?o estruturas que possuem
roteadores com canais ponto-a-ponto que interconectam os cores do SoC
(System-on-Chip), provendo comunica??o. Existem diversas redes em chip na
literatura, cada uma com suas caracter?sticas espec?ficas. Dentre essas, para
este trabalho foi a escolhida a IPNoSyS (Integrated Processing NoC System)
por ser uma rede em chip com caracter?sticas diferenciadas em rela??o ?s
NoCs em geral, pois seus componentes de roteamento acumulam tamb?m a
fun??o de processamento, ou seja, possuem unidades funcionais capazes de
executar instru??es. Com esse novo modelo, pacotes s?o processados e
roteados pela arquitetura do roteador. Este trabalho visa melhorar o
desempenho das aplica??es que possuem repeti??o, pois essas aplica??es
gastam um tempo maior na sua execu??o, o que se d? pela repetida execu??o
de suas instru??es. Assim, este trabalho prop?e otimizar o tempo de execu??o
dessas estruturas, atrav?s do emprego de uma t?cnica de paralelismo em n?vel
de instru??es, visando melhor aproveitar os recursos oferecidos pela
arquitetura. As aplica??es s?o testadas em um simulador dedicado, e seus
resultados comparados com a vers?o original da arquitetura, a qual prov?
paralelismo apenas em n?vel de pacotes
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/18100 |
| Date | 21 February 2014 |
| Creators | Medeiros, Aparecida Lopes de |
| Contributors | CPF:58434296049, http://lattes.cnpq.br/6374279398246756, Corr?a, Edgard de Faria, CPF:52396428420, http://lattes.cnpq.br/1929225348911990, Pereira, M?nica Magalh?es, CPF:00990410498, http://lattes.cnpq.br/5777010848661813, Brito, Alisson Vasconcelos de, CPF:02949328440, http://lattes.cnpq.br/6321676636193625, Kreutz, M?rcio Eduardo |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Sistemas e Computa??o, UFRN, BR, Ci?ncia da Computa??o |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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