摘要
可重构计算是一种介于ASIC和通用微处理器之间的新的提升计算机性能的方法,对于数字信号处理、流媒体技术、图像压缩、密码学、生物信息处理等计算密集型方面的应用,可重构计算技术可以发挥巨大的优势。基于具有较少重构时间的实时可编程逻辑器件(如FPGA)的用户可编程性,其可作为多种硬件资源使用。如果其配置信息可以迅速更改,则由逻辑器件实现的硬件功能也可实现迅速切换。硬件资源的大小是有限的,那些超过器件有效硬件资源的较大任务需要通过时域划分来解决。该文对可重构计算以及时域划分的定义、分类,国内外研究现状和常见的研究方法做了详细的描述,并综合分析了一系列时域划分算法并进行了相关比较。
Reconfigurable computing is a new method between ASIC and GPP to improve the performance of the computer,which could be used to the application about Digital Signal Processing,the technology of Stream Media,Image Data Compression,Cryptology,Bioinformation and so on.Chips based on runtime programmable logic devices(such as the case of FPGAs——field programmable gate arrays) with low reconfigurable time is programmable by users,so it could be used as various hardware resources.If we could change the reconfiguring information of the devices quickly,the switching of hardware function can be realized by logic devices.As the hardware resource is limited,the large scale task which exceed the available hardware resources should be temporal partitioned.This paper introduces the definition,classification,the research status internal and oversea and some general research methods.We also analyse some of temporal partitioning methods and compare them with each other.
作者
周洲
ZHOU Zhou(Tongji University,Shanghai 201804,China)
出处
《电脑知识与技术》
2011年第2期910-912,915,共4页
Computer Knowledge and Technology