基于SIMD体系结构的数据相关控制语句转化方法  

Data Dependent Control Statement Conversion on SIMD Architecture

作　　者：高巍[1] 宋妍[1] 

机构地区：[1]牡丹江师范学院计算机科学与技术系,黑龙江牡丹江157012

出　　处：《微电子学与计算机》2009年第8期182-185,共4页Microelectronics & Computer

摘　　要：数据并行应用具有规则的结构,该结构可以描述为一系列算术运算函数在数据流上的操作.对应于此应用的SIMD体系结构,可以充分利用这种规则性来提高性能.然而,含有数据相关控制结构的应用,在SIMD体系结构上的执行效率却很低.将数据相关的控制结构转化成数据传输,就可以使含有数据相关控制流的应用在SIMD体系结构上高效执行.这种转化技术使更多的应用可以在SIMD体系结构上高效运行.Many data - parallel applications have regular structures that can easily be expressed as a series of data parallel subprogram operating on data streams. Data - parallel architectures are designed to exploit this regularity by performing the same operation on many data elements concurrently. However, applications containing data - dependent control structures perform poorly on these architectures. Data- dependent control statement conversion converts these constructs into data- dependent data movement. This allows data - parallel architectures to efficiently execute applications with data - dependent control flow. This kind of conversion extends the applications which could run on the data parallel architecture.

关 键 词：数据相关控制 SIMD 共享控制器 图像 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]