一种基于数据流驱动的混合粒度可重构阵列架构  

A hybrid-grained reconfigurable architecture based on data stream

作　　者：俞磊[1] 景乃锋 王琴[1] YU Lei;JING Nan-feng;WANG Qin(School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《微电子学与计算机》2019年第5期19-22,28,共5页Microelectronics & Computer

摘　　要：粗粒度可重构阵列结构具有计算效率高的特点,但不能完美支持控制较复杂的算法.本文基于数据流驱动原理,提出了一种可重配置的混合粒度阵列架构,将细粒度可重构技术和粗粒度可重构技术相结合,实现了对控制密集型算法的支持,整个结构支持多发射循环迭代技术和空间展开循环迭代技术.通过对算法采取不同的映射方法和优化技术,相对于静态流执行情况至少可以获得15.6%的性能提升.The coarse-grained reconfigurable array has the characteristics of high computational efficiency,but it does not perfectly support the control of complex algorithms.Based on theprinciple of data stream driven,this paper proposes a hybrid-grained reconfigurable architecture,which support the algorithms of control-intensive by combining fine-grained reconfigurable technology and coarse-grained reconfigurable technology.The architecture supports techniques of loop iteration fast issue and loop iteration spatial expansion.By adopting different mapping methods,we can get at least 20 percentage performance improvement.

关 键 词：数据流驱动 可重构阵列 混合粒度 多发射 空间展开 

分 类 号：TP332[自动化与计算机技术—计算机系统结构]