Power-proportional modelling fidelity
Power-proportional modelling fidelity
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功率比例建模保真度
DOI：
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发表时间：
2015
期刊：
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通讯作者：
A. Yakovlev
中科院分区：
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作者：
A. Rafiev;Fei Xia;A. Iliasov;Rem Gensh;Ali Aalsaud;A. Romanovsky;A. Yakovlev
传统的分层建模方法往往具有与多级系统中自然存在的关注层相对应的抽象层。虽然很方便，但对于分析和设计来说，这并不总是最佳的。例如，在同一层中的系统部件在某些指标上可能不会有相同程度的贡献，例如系统功耗。为了减少建模、分析和设计工作，并可能减少运行时使用的模型的运行时控制开销，应该在更高的抽象级别上研究系统的不重要部分，而在更详细的抽象级别上研究更重要的部分。以系统功耗为中心，提出了有序图(OG)，它具有清晰的层次结构，但在模型保真度的多个层(阶)上提供直接的垂直缩放，导致发现贯穿不同阶的功率比例削减，以便以平面方式一起分析。随机活动网络(SANS)是一种很好的平面建模方法，它被认为是研究利用OGS发现岩屑的技术的一个例子。在ARM Big.LITTLE多核结构的Odroid开发系统上的一系列实验为该方法提供了初步的验证。©2015纽卡斯尔大学。由纽卡斯尔大学印刷出版，计算科学，克莱蒙特大厦，纽卡斯尔泰恩河畔克莱蒙特路，英国NE1 7RU。书目细节RAFIEV，A.，XIA，F.，ILIASOV，A.，GENSH，R.，AALSAUD，A.，Romanovsky，A.，Yakovlev，A.Power-Proportion Modelfiity[by]A.Rafiev，F.Xia，A.Iliasov，R.Gensh，A.Aalsod，A.Romanovsky，A.Yakovlev NewCastle on Tyne：NewCastle University：Computing Science，2015。(纽卡斯尔大学，计算科学，技术报告系列，第CS-TR-1443)
Traditional hierarchical modelling methods tend to have layers of abstraction corresponding to naturally existing layers of concern in multilevel systems. Although convenient, this is not always optimal for analysis and design. For instance, parts of a system which are in the same layer may not contribute to the same degree on some metric, e.g. system power consumption. To moderate the modelling, analysis and design effort, and potentially runtime control overhead for models used at runtime, less significant parts of the system should be studied at higher levels of abstraction and more significant ones with more detail. Concentrating on system power consumption, this paper presents Order Graphs (OGs), which have a clear hierarchical structure, but provide straightforward vertical zooming across multiple layers (orders) of model fidelity, resulting in the discovery of power-proportional cuts that run through different orders to be analysed together in a flat manner. Stochastic Activity Networks (SANs), a good flat modelling method, is suggested as an example of studying technique for cuts discovered with OGs. A series of experiments on an Odroid development system consisting of an ARM big.LITTLE multi-core structure provides initial validation for the approach. © 2015 Newcastle University. Printed and published by Newcastle University, Computing Science, Claremont Tower, Claremont Road, Newcastle upon Tyne, NE1 7RU, England. Bibliographical details RAFIEV, A., XIA, F., ILIASOV, A., GENSH, R., AALSAUD, A., ROMANOVSKY, A., YAKOVLEV, A. Power-proportional modelling fidelity [By] A. Rafiev, F. Xia, A. Iliasov, R. Gensh, A. Aalsaud, A. Romanovsky, A. Yakovlev Newcastle upon Tyne: Newcastle University: Computing Science, 2015. (Newcastle University, Computing Science, Technical Report Series, No. CS-TR-1443)