面向众核多级访存资源的静态数据布局优化模型  

A STATIC DATA PLACEMENT OPTIMISATION MODEL ORIENTED TOWARDS MULTI-CORE HIERARCHICAL ACCESSIBLE RESOURCES

作　　者：刘勇[1] 刘丽[1] 何王全[1] 

机构地区：[1]江南计算技术研究所,江苏无锡214083

出　　处：《计算机应用与软件》2011年第7期53-56,共4页Computer Applications and Software

基　　金：国家重点基础研究发展计划资助项目(2007CB310900)

摘　　要：受功耗、面积的限制,高性能众核处理器倾向于将片上SRAM组织成SPM这种非cache形式,与片外主存构成多级存储架构。这种存储架构需要软件显示管理应用程序中的数据存储和传输。为此,提出了一种众核多级访存资源的静态数据布局优化模型。该模型首先选择应用程序中可进行访存优化的数组变量,对这些变量进行优化收益的评估,然后建立一个类0-1背包优化问题的目标模型,最后针对该优化模型提出了一个实用的近似算法。实验结果验证了该模型的有效性。Constrained by power consumption and surface area,high-performance multi-core processor manufacturers tend to arrange on-chip SRAM into a non-cache form such as SPM to constitute a hierarchical storage architecture together with standalone memories.Such storage architecture requires data storage and transfer functions of the software display management application.The article puts forward a static data placement and optimisation model oriented towards multi-core hierarchical accessible resources.The model first determines array variables available for access optimisation in an application,draws assessments on benefits of optimisation with those variables,then establishes an object model similar to 0-1 bag optimisation,and finally concludes a practical approximate algorithm aiming at the optimised model.Experiments have validated the method.

关 键 词：SPM 多级访存资源 数据布局 数据传输 

分 类 号：TP333.35[自动化与计算机技术—计算机系统结构]