【作者】 许文曜；

【导师】 徐新民；

【作者基本信息】 浙江大学 ， 电路与系统， 2008， 硕士

【摘要】 最近几年,可重构计算和软硬件协同设计是当前计算机科研领域的两大核心,其任务建模平台大多是基于FPGA的动态可重构系统,而可重构系统也是最近几年学术领域研究的热点问题。本论文的核心工作就是围绕着新型FPGA架构设计以及基于新型FPGA的动态可重构系统设计展开的。可重构系统设计中有两个关键问题:任务重构时间和系统功耗。本论文一共包含三个方面的内容。第一,我们从平台工具FPGA器件入手,提出了一种新型的FPGA架构,在提高了器件逻辑密度和系统的资源利用率的同时,大大减少了FPGA的动态重构时间和功耗,这种新型的FPGA器件也是下面两部分工作的基础;第二,我们设计一套新的可重构系统的设计方法,重构数据传输采用处理器本地高速总线,并提出了任务状态直接控制的概念,进一步提高的可重构系统的性能;第三,在可重构系统的软件设计方面,基于首次自适应算法,我们提出了一种基于可重构系统的硬件调度算法,从任务调度的角度减少系统的重构功耗。以上三个方面的工作为可重构计算以及软硬件混合任务系统的设计提供了重要前提,而可重构计算也将是下一阶段我们工作的重点。更多还原

【Abstract】 Recently reconfigurable computing and software-hardware system co-design are two current issues, and their models are both based on reconfigurable system, meanwhile FPGA-based reconfigurable system is the pivotal concerning in the passing years. The key work in the thesis is related to novel FPGA-based dynamic reconfigurable system.In this thesis, our work includes three aspects. Firstly, we sponsor a novel FPGA architecture, which not only improves the logic intensity and resource usage in the device, but greatly reduce reconfigurable time and power dissipation. At the same time, communication issue is also handled. Secondly, we design a new set of development chain for reconfiguration, and address the concept about task status access (TSA) to order to solve many tough problems, such as preemptive hardware task scheduling, hardware resource defragment, and so on. It’s beneficial for solving real time task immigration in software-hardware system in the future. Finally, with respect to software design on the reconfigurable system, we make a novel and high-efficient hardware scheduling algorithm based on first-fit self-adaptive algorithm. With this algorithm, the power consumption will decrease.To sum up, all three problems we target are relative to reconfigurable computing and software-hardware mixed system, which will be our emphasis in the next term.更多还原