Neste trabalho estudou-se diversas arquiteturas de dispositivos FPGAs presentes no mercado, visando a utilização desta tecnologia em arquiteturas de computação reconfigurável. Especificamente foram investigados recursos e técnicas de reconfigurabilidade dinâmica destes dispositivos. A possibilidade de reconfigurar dinamicamente o hardware cria diversas expectativas de superação das arquiteturas de computação tradicional. Surge o conceito de hardware virtual, assim como inúmeras dificuldades em utilizar efetivamente esta tecnologia. Outra característica promissora que a tecnologia FPGA oferece é a possibilidade de realizar upgrades remotos do hardware, sem a necessidade de substituição física de equipamentos ou parte deles. Em adicional, foi implementado um sistema multi-FPGAs com dispositivos reconfiguráveis individualmente de forma local ou remota. Este sistema poderá ser a base para uma arquitetura de computação reconfigurável, sendo ela dinâmica ou não. / In this work it was studied several architectures of FPGAs devices available in the market, seeking the use of this technology in architectures of reconfigurable computing. It was specifically researched resources and techniques of dynamic reconfiguration of these devices. The possibility of reconfigure the hardware dynamically creates countless expectations to overcome the architectures of traditional computing. The concept of virtual hardware emerges, as well as a lot of difficulties in using actually this technology. Another promising characteristic that the technology FPGA offers it is the possibility to accomplishing remote upgrades of the hardware, without the need of physical substitution of equipments or of parts of them. In addition, a system multi-FPGAs was implemented with individually reconfigurable devices in local or remote way. This system can be the base for an architecture of reconfigurable computing, being it dynamics or not.

Neste trabalho estudou-se diversas arquiteturas de dispositivos FPGAs presentes no mercado, visando a utilização desta tecnologia em arquiteturas de computação reconfigurável. Especificamente foram investigados recursos e técnicas de reconfigurabilidade dinâmica destes dispositivos. A possibilidade de reconfigurar dinamicamente o hardware cria diversas expectativas de superação das arquiteturas de computação tradicional. Surge o conceito de hardware virtual, assim como inúmeras dificuldades em utilizar efetivamente esta tecnologia. Outra característica promissora que a tecnologia FPGA oferece é a possibilidade de realizar upgrades remotos do hardware, sem a necessidade de substituição física de equipamentos ou parte deles. Em adicional, foi implementado um sistema multi-FPGAs com dispositivos reconfiguráveis individualmente de forma local ou remota. Este sistema poderá ser a base para uma arquitetura de computação reconfigurável, sendo ela dinâmica ou não. / In this work it was studied several architectures of FPGAs devices available in the market, seeking the use of this technology in architectures of reconfigurable computing. It was specifically researched resources and techniques of dynamic reconfiguration of these devices. The possibility of reconfigure the hardware dynamically creates countless expectations to overcome the architectures of traditional computing. The concept of virtual hardware emerges, as well as a lot of difficulties in using actually this technology. Another promising characteristic that the technology FPGA offers it is the possibility to accomplishing remote upgrades of the hardware, without the need of physical substitution of equipments or of parts of them. In addition, a system multi-FPGAs was implemented with individually reconfigurable devices in local or remote way. This system can be the base for an architecture of reconfigurable computing, being it dynamics or not.

A distinctive feature of run-time reconfigurable systems is the ability to change the configuration of programmable resources during execution. This opens a number of possibilities such as virtualisation of computational resources, simplified routing and in certain applications lower power. Seamless run-time reconfiguration requires rapid configuration. Commodity programmable devices have relatively long configuration time, which makes them poor candidates for run-time reconfigurable systems. Reducing this reconfiguration time to the order of nano seconds will enable rapid run-time reconfiguration. Having multiple configuration planes and switching between them while processing data is one approach towards achieving rapid reconfiguration. An experimental context switching programmable device, called the Context Switching Reconfigurable Computer (CSRC), has been created by BAE Systems, which provided opportunities to explore context-switching strategies for run-time reconfigurable systems. The work presented here studies this approach for run-time reconfiguration, by applying the concepts to develop applications on a context switching reconfigurable system. The work also discusses the advantages and disadvantages of such an approach and ways of leveraging the concept for efficient computing. / Master of Science