数值软件自适应性能优化搜索过程评价技术研究

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	数值软件自适应性能优化搜索过程评价技术研究
	孙相征 ; 张云泉 ; 王宣强 ; 王磊
刊名	计算机研究与发展
	2010
卷号	47 期号:4 页码:679-686
关键词	自适应优化过程评价指标优化参数性能跟踪 ATLAS GEMM
ISSN号	1000-1239
其他题名	research on the evaluation criterion for performance searching process of self-adapting numerical software
中文摘要	随着计算机硬件的快速变化,如何充分利用计算机资源,使软件性能尽可能逼近处理器峰值是人们关心的问题.针对特定硬件平台手工优化程序,或者依赖编译器优化技术,存在人工介入,难与硬件更新同步等问题.而采用自适应性能优化技术实现的高性能数学软件包(SANS)如FFTW,ATLAS,PHiPAC,OSKI等,可有效解决前两种方法存在的问题,降低开发成本,提高软件可移植性.针对自适应性能优化技术中,优化参数搜索过程十分耗时的问题,提出对优化搜索过程的评价指标Pt,并给出用此指标控制优化搜索过程的方法.实验表明运用该指标可以在较短的时间内得到一个合理的性能值.
收录类别	cscd
语种	中文
CSCD记录号	CSCD:3876058
公开日期	2010-08-24
附注	With the rapid development of computer hardware,researchers pay more and more attentions to how to make efficient use of computer resources and develop the high performance software.Traditionally,researchers produce manual-optimized software for a given machine or resort to the optimization of compiler.There are many problems in these two methods,including poor portability and the difficulty to synchronize with the development of hardware.When designing high performance self-adapting numerical software packages (SANS),such as FFTW,ATLAS,PHiPAC,OSKI,etc,using auto-tuning method becomes a very useful way and could avoid the problems mentioned above.However,the searching process always consumes too much time.In the experiment,it is found that the current best performance does not change rapidly during the whole process,which is completely the opposite of the change of performance gained at the runtime,and the best performance gained at the beginning is or almost close to the best performa...更多nce gained after the whole search process.In order to search efficiently,a criterion Pt is proposed to evaluate the self-adapting searching process and the method on how to use the criterion to control the searching process for reducing the search time is also given.The experiment result shows that the method given can get an acceptable performance in a short time.
内容类型	期刊论文
源URL	[http://124.16.136.157/handle/311060/4336]
专题	软件研究所_并行计算实验室 _期刊论文
推荐引用方式 GB/T 7714	孙相征,张云泉,王宣强,等. 数值软件自适应性能优化搜索过程评价技术研究[J]. 计算机研究与发展,2010,47(4):679-686.
APA	孙相征,张云泉,王宣强,&王磊.(2010).数值软件自适应性能优化搜索过程评价技术研究.计算机研究与发展,47(4),679-686.
MLA	孙相征,et al."数值软件自适应性能优化搜索过程评价技术研究".计算机研究与发展 47.4(2010):679-686.