2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS)最新文献

High level tranforms toreduce energy consumption of signal and image processing operators 高电平变换减少信号和图像处理操作员的能量消耗

2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS) Pub Date : 2013-11-14 DOI: 10.1109/PATMOS.2013.6662183

H. Ye, L. Lacassagne, J. Falcou, D. Etiemble, Laurent Cabaret, O. Florent

引用次数: 3

Power saving policies for multipurpose WBAN 多用途无线局域网的节能策略

2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS) Pub Date : 2013-11-14 DOI: 10.1109/PATMOS.2013.6662159

Filippo Casamassima, Elisabetta Farella, L. Benini

引用次数: 7

Efficient power Intent validation using loosely-timed simulation models 使用松散时间仿真模型的高效功率意图验证

2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS) Pub Date : 2013-11-14 DOI: 10.1109/PATMOS.2013.6662171

Fabian Mischkalla, W. Müller

引用次数: 3

Methodology for Power Mode selection in FD-SOI circuits with DVFS and Dynamic Body Biasing 基于DVFS和动态体偏置的FD-SOI电路功率模式选择方法

2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS) Pub Date : 2013-11-14 DOI: 10.1109/PATMOS.2013.6662174

Y. Akgul, D. Puschini, S. Lesecq, E. Beigné, P. Benoit, L. Torres

引用次数: 5

Ultra low-power standard cell design using planar bulk CMOS in subthreshold operation 超低功耗标准电池设计采用平面体CMOS在亚阈值操作

2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS) Pub Date : 2013-11-14 DOI: 10.1109/PATMOS.2013.6662149

M. Pons, Jean-Luc Nagel, D. Séverac, M. Morgan, D. Sigg, P.-F. Rüedi, C. Piguet

引用次数: 13

Crown scheduling: Energy-efficient resource allocation, mapping and discrete frequency scaling for collections of malleable streaming tasks 冠调度:可延展流任务集合的节能资源分配、映射和离散频率缩放

2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS) Pub Date : 2013-11-14 DOI: 10.1109/PATMOS.2013.6662176

C. Kessler, Nicolas Melot, Patrick Eitschberger, J. Keller

{"title":"Crown scheduling: Energy-efficient resource allocation, mapping and discrete frequency scaling for collections of malleable streaming tasks","authors":"C. Kessler, Nicolas Melot, Patrick Eitschberger, J. Keller","doi":"10.1109/PATMOS.2013.6662176","DOIUrl":"https://doi.org/10.1109/PATMOS.2013.6662176","url":null,"abstract":"We investigate the problem of generating energy-optimal code for a collection of streaming tasks that include parallelizable or malleable tasks on a generic many-core processor with dynamic discrete frequency scaling. Streaming task collections differ from classical task sets in that all tasks are running concurrently, so that cores typically run several tasks that are scheduled round-robin at user level in a data driven way. A stream of data flows through the tasks and intermediate results are forwarded to other tasks like in a pipelined task graph. In this paper we present crown scheduling, a novel technique for the combined optimization of resource allocation, mapping and discrete voltage/frequency scaling for malleable streaming task sets in order to optimize energy efficiency given a throughput constraint. We present optimal off-line algorithms for separate and integrated crown scheduling based on integer linear programming (ILP). We also propose extensions for dynamic rescaling to automatically adapt a given crown schedule in situations where not all tasks are data ready. Our energy model considers both static idle power and dynamic power consumption of the processor cores. Our experimental evaluation of the ILP models for a generic manycore architecture shows that at least for small and medium sized task sets even the integrated variant of crown scheduling can be solved to optimality by a state-of-the-art ILP solver within a few seconds.","PeriodicalId":287176,"journal":{"name":"2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116132980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

Applying of Quality of Experience to system optimisation 经验质量在系统优化中的应用

2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS) Pub Date : 2013-11-14 DOI: 10.1109/PATMOS.2013.6662160

Sascha Bischoff, Andreas Hansson, B. Al-Hashimi

{"title":"Applying of Quality of Experience to system optimisation","authors":"Sascha Bischoff, Andreas Hansson, B. Al-Hashimi","doi":"10.1109/PATMOS.2013.6662160","DOIUrl":"https://doi.org/10.1109/PATMOS.2013.6662160","url":null,"abstract":"State-of-the-art mobile devices, such as smart-phones and tablets, are highly versatile and must deliver high performance across a multitude of applications. The perceived performance and resulting user experience can make or break a design. It is therefore vital that device design and optimisation take into account the expectations and perceptions of the end user, as well as the types and requirements of the applications running on the device. Traditionally, device optimisation focuses on low-level metrics, such as CPU floating point performance or GPU frame rate, rather than on the aspects most important to the end user. In this work, we investigate the applicability of Quality of Experience (QoE) to system optimisation. We define a set of measurable QoE metrics, and run a set of experiments around a web browser and two graphics benchmarks. Using the results of these experiments, we show the advantages of using QoE as an optimisation metric by demonstrating the ability to optimally trade CPU performance for energy usage whilst taking into account the user experience. We investigate two GPU benchmarks to determine the ideal number of cores for energy efficiency, whilst ensuring a sufficiently high frame rate to maintain a high-quality user experience. We then look at the system as a whole, and the feasibility of using QoE to optimise performance and power consumption for the complete system, without sacrificing user experience. We achieve up to 60% savings in system energy usage with limited impact on the user experience.","PeriodicalId":287176,"journal":{"name":"2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115136965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Automatic implementation of low-complexity QC-LDPC encoders 自动实现低复杂度的QC-LDPC编码器

2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS) Pub Date : 2013-11-14 DOI: 10.1109/PATMOS.2013.6662186

Georgios Tzimpragos, C. Kachris, D. Soudris, Ioannis Tomkos

引用次数: 2

A learning tool MOSFET model: A stepping-stone from the square-law model to BSIM4 一个学习工具MOSFET模型:从平方定律模型到BSIM4的垫脚石

2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS) Pub Date : 2013-11-14 DOI: 10.1109/PATMOS.2013.6662153

K. Jeppson

引用次数: 4

Power contracts: A formal way towards power-closure?! 权力合同:权力关闭的正式方式?!

2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS) Pub Date : 2013-11-14 DOI: 10.1109/PATMOS.2013.6662156

Gregor Nitsche, Kim Grüttner, W. Nebel

{"title":"Power contracts: A formal way towards power-closure?!","authors":"Gregor Nitsche, Kim Grüttner, W. Nebel","doi":"10.1109/PATMOS.2013.6662156","DOIUrl":"https://doi.org/10.1109/PATMOS.2013.6662156","url":null,"abstract":"Since energy consumption continuously becomes a limiting factor for today's microelectronics, power-aware design space exploration won significant importance in the design flows. Being strongly dependent on future design decisions and low-level parameters, the challenge results, how to derive power estimates from uncertain knowledge about later implementation details. For that purpose, high-level approaches are available, which either perform top-down synthesis and a power characterization of the concrete low-level system or re-use abstract characteristics of high-level components to derive power models and to calculate the power consumption of the composed system. Hence, these approaches suffer either performance or accuracy, due to the tradeoff between generating and considering implementation details respectively due to the inaccuracy of abstractions. Additionally, reliability of such estimations is uncertain, since system and component power models lack general validity and a traceable provability within the composed, extra-functional design space of power, function and time. To address this lack of power-closure, this paper suggests power contracts to formalize power properties and as a foundation for a more traceable, provable and thus reliable power-aware design flow. For that purpose, we introduce the formal basics of contract-based design, discuss their improvements within the design flow and propose their application within the domain of power, giving an outlook on a formal way towards power-closure.","PeriodicalId":287176,"journal":{"name":"2013 23rd International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124661375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10