Projeto de Sistemas Integrados de Propósito Geral Baseados em Redes em Chip Expandindo as Funcionalidades dos Roteadores para Execução de Operações: A plataforma IPNoSys

It bet on the next generation of computers as architecture with multiple processors and/or multicore processors. In this sense there are challenges related to features interconnection, operating frequency, the area on chip, power dissipation, performance and programmability. The mechanism of interconnection and communication it was considered ideal for this type of architecture are the networks-on-chip, due its scalability, reusability and intrinsic parallelism. The networks-on-chip communication is accomplished by transmitting packets that carry data and instructions that represent requests and responses between the processing elements interconnected by the network. The transmission of packets is accomplished as in a pipeline between the routers in the network, from source to destination of the communication, even allowing simultaneous communications between pairs of different sources and destinations. From this fact, it is proposed to transform the entire infrastructure communication of network-on-chip, using the routing mechanisms, arbitration and storage, in a parallel processing system for high performance. In this proposal, the packages are formed by instructions and data that represent the applications, which are executed on routers as well as they are transmitted, using the pipeline and parallel communication transmissions. In contrast, traditional processors are not used, but only single cores that control the access to memory. An implementation of this idea is called IPNoSys (Integrated Processing NoC System), which has an own programming model and a routing algorithm that guarantees the execution of all instructions in the packets, preventing situations of deadlock, livelock and starvation. This architecture provides mechanisms for input and output, interruption and operating system support. As proof of concept was developed a programming environment and a simulator for this architecture in SystemC, which allows configuration of various parameters and to obtain several results to evaluate it

Estudo da viabilidade do desenvolvimento de sistemas integrados baseados em redes em chip sem processadores: sistema IPNoSys

The increase of capacity to integrate transistors permitted to develop completed systems, with several components, in single chip, they are called SoC (System-on-Chip). However, the interconnection subsystem cans influence the scalability of SoCs, like buses, or can be an ad hoc solution, like bus hierarchy. Thus, the ideal interconnection subsystem to SoCs is the Network-on-Chip (NoC). The NoCs permit to use simultaneous point-to-point channels between components and they can be reused in other projects. However, the NoCs can raise the complexity of project, the area in chip and the dissipated power. Thus, it is necessary or to modify the way how to use them or to change the development paradigm. Thus, a system based on NoC is proposed, where the applications are described through packages and performed in each router between source and destination, without traditional processors. To perform applications, independent of number of instructions and of the NoC dimensions, it was developed the spiral complement algorithm, which finds other destination until all instructions has been performed. Therefore, the objective is to study the viability of development that system, denominated IPNoSys system. In this study, it was developed a tool in SystemC, using accurate cycle, to simulate the system that performs applications, which was implemented in a package description language, also developed to this study. Through the simulation tool, several result were obtained that could be used to evaluate the system performance. The methodology used to describe the application corresponds to transform the high level application in data-flow graph that become one or more packages. This methodology was used in three applications: a counter, DCT-2D and float add. The counter was used to evaluate a deadlock solution and to perform parallel application. The DCT was used to compare to STORM platform. Finally, the float add aimed to evaluate the efficiency of the software routine to perform a unimplemented hardware instruction. The results from simulation confirm the viability of development of IPNoSys system. They showed that is possible to perform application described in packages, sequentially or parallelly, without interruptions caused by deadlock, and also showed that the execution time of IPNoSys is more efficient than the STORM platform

Informe del Seminario Internacional sobre Sistemas Integrados para el Desarrollo y Gestión de Cuencas Hidrográficas en la Región Andina de América Latina

Incluye Bibliografía

Sistemas integrados de administración financiera pública en América Latina

Incluye Bibliografía

Los cambios en los sistemas integrados de transporte masivo en las principales ciudades de América Latina

Incluye Bibliografía

Sistemas integrados de administración financiera pública en América Latina

Incluye Bibliografía

Informe del Seminario Internacional sobre Sistemas Integrados para el Desarrollo y Gestión de Cuencas Hidrográficas en la Región Andina de América Latina = Report of the International Seminar on Integrated Systems for the Development and Management of River Basins in the Andean Region of Latin America

Contiene organización de los trabajos, resumen de los debates y recomendaciones y conclusiones. Incluye además, definición de términos utilizados; criterios para definir las principales características y necesidades de las zonas altas de la Región Andina; lista de participantes y lista de documentos presentados en el Seminario.

A inteligência competitiva organizacional e os sistemas integrados de gestão ERP: um estudo nas indústrias calçadistas de Jaú

Pós-graduação em Ciência da Informação - FFC

Sistemas integrados de transporte en América Latina y el Caribe: iniciativas convergentes

El año 1998 se perfila como el de grandes iniciativas regionales enfocadas a la creación de sistemas regionales de transporte integrado. En los últimos seis meses, ha sido intensa la actividad en América Latina y el Caribe. Los sectores público y privado parecen haberse puesto de acuerdo para lanzar, cada cual desde perspectivas propias, iniciativas convergentes. En Centroamérica, ya se encuentra en marcha un proyecto de transporte multimodal mientras se elabora el nuevo plan maestro de transporte propuesto por la Secretaría Permanente del Tratado de Integración Económica Centroamericana (SIECA); en Sudamérica, la Asociación Latinoamericana de Integración (ALADI) y la Asociación Latinoamericana de Ferrocarriles (ALAF) lanzaron un estudio de prefactibilidad para un plan de desarrollo sostenible del transporte; la II Cumbre de las Américas adoptó un plan de acción que ahora incluye los trabajos del Comité Ejecutivo de la Iniciativa de Transporte del Hemisferio Occidental; el sector privado también ha celebrado su reunión regional en Sao Paulo, Brasil, con la cuarta edición de Intermodal 98. Estas iniciativas se plasman en torno a una misma línea de pensamiento y acción, parten de un antecedente similar y tienden hacia una misma meta: actuar en el entorno inmediato para insertarse en el mercado mundial. El antecedente es la constatación que después de varios años de crecimiento, la infraestructura, los equipos y los servicios de transporte parecen no satisfacer a la creciente demanda del comercio internacional de la región. La meta es emprender las reformas que requiere el transporte para enfrentar los desafíos de la competencia internacional. Esta edición del Boletín se dedica a informar sobre estas recientes iniciativas y sus posibles desarrollos.

Los cambios en los sistemas integrados de transporte masivo (SITM) en ciudades de América Latina

En la presente edición del Boletín FAL se aborda una mirada a los sistemas de transporte público desarrollados y propuestos en los últimos años en América Latina, y a partir de ello se busca realizar un análisis crítico de las políticas que están detrás de estas intervenciones, como así también las implicaciones que tienen estas para el desarrollo de las ciudades en América Latina.

Estudo dos sistemas integrados de filmes finos óxidos em substratos poliméricos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Dinâmica dos atributos físicos e estoque de carbono de um latossolo em sistemas integrados de produção

Pós-graduação em Agronomia (Ciência do Solo) - FCAV

Sucessão de culturas em sistemas integrados de produção

Pós-graduação em Agronomia (Energia na Agricultura) - FCA