GEMSCLAIM: GreenEr Mobile Systems by Cross LAyer Integrated energy Management

GEMSCLAIM：跨层集成能源管理的 GreenEr 移动系统

• 批准号: EP/K017594/1
• 负责人: Dimitrios Nikolopoulos
• 金额: $ 44.53万
• 依托单位: Queen's University Belfast
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2013
• 资助国家: 英国
• 起止时间: 2013 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FK017594%2F1
• 关键词: GEMSCLAIM; GreenEr; Mobile; Systems; Cross

Personal computing currently faces a rapid trend from desktop machines towards mobile services, accessed via tablets, smartphones and similar terminal devices. With respect to computing power, today 's handheld devices are similar to Cray-2 supercomputers from the 1980s. Due to higher computational load (e.g. via multimedia apps) and the variety of radio interfaces (such as WiFi, 3G, and LTE), modern terminals are getting increasingly energy hungry. For instance, a single UMTS upload or a video recording process on today 's smartphones may consume as much as 1.5 Watts, i.e. roughly 50% of the maximal device power. In the near future, higher data rates and traffic, advanced media codecs, and graphics applications will ask for even more energy than the battery can deliver. At the same time, the power density limit might lead to a significant share of "Dark Silicon" at 22nm CMOS and below. Obviously, disruptive energy optimizations are required that go well beyond traditional technologies like DVFS (dynamic voltage and frequency scaling) and power-down of temporarily unused components. The GEMSCLAIM project aims at introducing novel approaches for reducing this "greed for energy", thereby improving the user experience and enabling new opportunities for mobile computing. The focus is on three novel approaches: (1) cross layer energy optimization, ranging from the compiler over the operating system down to the target HW platform, (2) efficient programming support for energy-optimized heterogeneous Multicore platforms based on energy-aware service level agreements (SLAs) and energy-sensitive tunable parameters, and (3) introducing energy awareness into Virtual Platforms for the purpose of dynamically customizing the HW architecture for energy optimization and online energy monitoring and accounting. GEMSCLAIM will provide new methodologies and tools in these domains and will quantify the potential energy savings via benchmarks and a HW platform prototype.

个人计算目前正面临着从台式电脑向移动服务（通过平板电脑、智能手机和类似终端设备访问）的快速趋势。就计算能力而言，今天的手持设备类似于20世纪80年代的Cray-2超级计算机。由于更高的计算负荷（例如通过多媒体应用程序）和各种无线电接口（如WiFi、3G和LTE），现代终端越来越需要能源。例如，在今天的智能手机上，单个UMTS上传或视频录制过程可能消耗多达1.5瓦，即大约是最大设备功率的50%。在不久的将来，更高的数据速率和流量、先进的媒体编解码器和图形应用程序将需要比电池所能提供的更多的能量。同时，功率密度限制可能会导致22nm及以下CMOS的“暗硅”占很大份额。显然，颠覆性的能源优化需要远远超越传统技术，如DVFS（动态电压和频率缩放）和暂时未使用组件的断电。GEMSCLAIM项目旨在引入新的方法来减少这种“对能源的贪婪”，从而改善用户体验，并为移动计算提供新的机会。重点是三个新方法：(1)从操作系统上的编译器到目标硬件平台的跨层能量优化；(2)基于能量感知的服务水平协议（sla）和能量敏感的可调参数，为能量优化的异构多核平台提供高效的编程支持；(3)将能量感知引入虚拟平台，以便动态定制用于能量优化和在线能量监测和会计的硬件架构。GEMSCLAIM将为这些领域提供新的方法和工具，并将通过基准测试和硬件平台原型来量化潜在的节能。

项目成果

On the Viability of Microservers for Financial Analytics

论金融分析微服务器的可行性

• 发表时间: 2014
• 作者: Gillan C

Methods and metrics for fair server assessment under real-time financial workloads

实时金融工作负载下公平服务器评估的方法和指标

• DOI: 10.1002/cpe.3704
• 发表时间: 2015
• 期刊: Practice and Experience
• 作者: Georgakoudis G

Iso-Quality of Service: Fairly Ranking Servers for Real-Time Data Analytics

等服务质量：用于实时数据分析的公平排名服务器

• DOI: 10.1142/s0129626415410042
• 发表时间: 2015
• 期刊: Parallel Processing Letters
• 影响因子: 0.4
• 作者: Georgakoudis G

SCALO Scalability-Aware Parallelism Orchestration for Multi-Threaded Workloads

适用于多线程工作负载的 SCALO 可扩展性感知并行编排

• DOI: 10.1145/3158643
• 发表时间: 2017
• 期刊: ACM Transactions on Architecture and Code Optimization
• 影响因子: 1.6
• 作者: Georgakoudis G

Evaluating Asymmetric Multicore Systems-on-Chip using Iso-Metrics

使用 Iso-Metrics 评估非对称多核片上系统

• DOI: 10.48550/arxiv.1503.08104
• 发表时间: 2015
• 期刊: arXiv e-prints
• 作者: Chalios Charalampos