2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD)最新文献_第5页

Design and technology co-optimization near single-digit nodes 接近个位数节点的设计和技术协同优化

2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD) Pub Date : 2014-11-03 DOI: 10.1109/ICCAD.2014.7001409

L. Liebmann, R. Topaloglu

引用次数: 9

Full chip impact study of power delivery network designs in monolithic 3D ICs 单片3D集成电路中供电网络设计的全芯片影响研究

2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD) Pub Date : 2014-11-03 DOI: 10.1109/ICCAD.2014.7001406

S. Samal, K. Samadi, P. Kamal, Yang Du, S. Lim

引用次数: 29

Optimal offloading control for a mobile device based on a realistic battery model and semi-Markov decision process 基于现实电池模型和半马尔可夫决策过程的移动设备最优卸载控制

2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD) Pub Date : 2014-11-03 DOI: 10.1109/ICCAD.2014.7001378

Shuang Chen, Yanzhi Wang, Massoud Pedram

{"title":"Optimal offloading control for a mobile device based on a realistic battery model and semi-Markov decision process","authors":"Shuang Chen, Yanzhi Wang, Massoud Pedram","doi":"10.1109/ICCAD.2014.7001378","DOIUrl":"https://doi.org/10.1109/ICCAD.2014.7001378","url":null,"abstract":"Due to the limited battery capacity in mobile devices, the concept of mobile cloud computing (MCC) is proposed where some applications are offloaded from the local device to the cloud for higher energy efficiency. The portion of applications or tasks to be offloaded for remote processing should be judiciously determined. In this paper, the problem of optimal task dispatch, transmission, and execution in the MCC system is considered. Dynamic voltage and frequency scaling (DVFS) is applied to the local mobile processor, whereas the RF transmitter of the mobile device can choose from multiple modulation schemes and bit rates. The power consumptions of the mobile components that cannot be directly controlled, e.g., the touch screen, GPU, audio codec, and I/O ports, are also accounted for through capturing their correlation with the mobile processor and RF transmitter. Finally, a realistic and accurate battery model is adopted in this work in order to estimate the battery energy loss rate in a more accurate way. This paper presents a semi-Markov decision process (SMDP)-based optimization framework, with the actions of different DVFS levels and modulation schemes/transimission bit rates and the objective of minimizing both the energy drawn from the battery and the average latency in request servicing. This paper derives the optimal solution, including the optimal DVFS policy, offloading rate, and transmission scheme, using linear programming combined with a heuristic search. Experiments are conducted on Qualcomm Snapdragon Mobile Development Platform MSM8660 to find the correlations among the power consumptions of the CPU, RF components, and other components. Simulation results show that the proposed optimal solution consistently outperforms some baseline algorithms.","PeriodicalId":426584,"journal":{"name":"2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122022465","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: 9

An efficient spectral graph sparsification approach to scalable reduction of large flip-chip power grids 一种有效的谱图稀疏化方法用于大型倒装电网的可伸缩缩减

2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD) Pub Date : 2014-11-03 DOI: 10.5555/2691365.2691410

Xueqian Zhao, Zhuo Feng, Cheng Zhuo

{"title":"An efficient spectral graph sparsification approach to scalable reduction of large flip-chip power grids","authors":"Xueqian Zhao, Zhuo Feng, Cheng Zhuo","doi":"10.5555/2691365.2691410","DOIUrl":"https://doi.org/10.5555/2691365.2691410","url":null,"abstract":"Existing state-of-the-art realizable RC reduction methods may not be suitable for scalable power grid reductions due to the fast growing computational complexity and the large number of ports. In this work, we present a scalable power grid reduction method for reducing large-scale flip-chip power grids based on recent spectral graph sparsification techniques. The first step of the proposed approach aggressively reduces the large power grid blocks into much smaller power grid blocks by properly matching the effective resistances of the original power grid networks. Next, an efficient spectral graph sparsification scheme is introduced to dramatically sparsify the relatively dense power grid blocks that are generated during the previous step. In the last, an effective grid compensation scheme is proposed to further improve the model accuracy of the reduced and sparsified power grid. Since reduction of each power grid block can be performed independently, our method can be easily accelerated on parallel computers, and therefore expected to be capable of handling large power grid designs as well as incremental designs. Extensive experimental results show that our method can scale linearly with power grid sizes and efficiently reduce industrial power grids sizes by 20X without loss of much accuracy in both DC and transient analysis.","PeriodicalId":426584,"journal":{"name":"2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130074752","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: 12

Pragma-based floating-to-fixed point conversion for the emulation of analog behavioral models 用于模拟行为模型仿真的基于实用程序的浮点到定点转换

2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD) Pub Date : 2014-11-03 DOI: 10.1109/ICCAD.2014.7001419

Frank A. Nothaft, Luis Fernandez, Stephen Cefali, Nishant Shah, J. Rael, Luke Darnell

引用次数: 6

Asynchronous circuit placement by Lagrangian relaxation 拉格朗日弛豫的异步电路布置

2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD) Pub Date : 2014-11-03 DOI: 10.1109/ICCAD.2014.7001420

Gang Wu, Tao Lin, Hsin-Ho Huang, C. Chu, P. Beerel

{"title":"Asynchronous circuit placement by Lagrangian relaxation","authors":"Gang Wu, Tao Lin, Hsin-Ho Huang, C. Chu, P. Beerel","doi":"10.1109/ICCAD.2014.7001420","DOIUrl":"https://doi.org/10.1109/ICCAD.2014.7001420","url":null,"abstract":"Recent asynchronous VLSI circuit placement approach tries to leverage synchronous placement tools as much as possible by manual loop-breaking and creation of virtual clocks. However, this approach produces an exponential number of explicit timing constraints which is beyond the ability of synchronous placement tools to handle. Thus, synchronous placer can only produce suboptimal results. Also, it can be very costly in terms of runtime. This paper proposed a new placement approach for asynchronous VLSI circuits. We formulated the asynchronous timing-driven placement problem and transform this problem into a weighted wirelength minimization problem based on a Lagrangian relaxation framework. The problem can then be efficiently solved using any standard wirelength-driven placement engine that can handle net weights. We demonstrate our approach on QDI PCHB asynchronous circuit with a state-of-art quadratic placer. The experimental results show that our algorithm can effectively improve the asynchronous circuits performance at placement stage. In addition, the runtime of our algorithm is shown to be more scalable to large-scale circuits compared with the loop-breaking approach.","PeriodicalId":426584,"journal":{"name":"2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124349722","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

A resource-level parallel approach for global-routing-based routing congestion estimation and a method to quantify estimation accuracy 基于全局路由的路由拥塞估计的资源级并行方法及估计精度的量化方法

2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD) Pub Date : 2014-11-03 DOI: 10.1109/ICCAD.2014.7001381

Wen-Hao Liu, Zhen-Yu Peng, Ting-Chi Wang

{"title":"A resource-level parallel approach for global-routing-based routing congestion estimation and a method to quantify estimation accuracy","authors":"Wen-Hao Liu, Zhen-Yu Peng, Ting-Chi Wang","doi":"10.1109/ICCAD.2014.7001381","DOIUrl":"https://doi.org/10.1109/ICCAD.2014.7001381","url":null,"abstract":"Routability has become a challenging issue with designs scaling down. Recently, global-routing-based routing congestion estimators (GRCEs) are widely used to detect the routability problems in the early VLSI design stages. To make GRCEs fast, using parallel routing approaches to speed up GRCEs is a promising direction. However, integrating existing parallel routing approaches into a GRCE may degrade the accuracy of the GRCE, because the routing kernel of the GRCE has to be modified such that its routing behavior changes. This paper presents a resource-level parallel approach (RPA) to accelerate GRCEs. RPA is easy to implement and has no need to change the routing kernels of GRCEs. Thus, GRCEs accelerated by RPA can keep its routing behavior and the estimation accuracy. Moreover, this paper presents an analytical method to quantify the estimation accuracy of a GRCE. Traditionally, the accuracy of a GRCE is manually measured by how they look like between the congestion maps generated by the GRCE and a real router, which may be inaccurate and time-consuming. In contrast, using the proposed quantifying method to evaluate the accuracy of a GRCE is more precise and faster.","PeriodicalId":426584,"journal":{"name":"2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116916828","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: 0

A hierarchical approach for generating regular floorplans 生成规则平面图的分层方法

2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD) Pub Date : 2014-11-03 DOI: 10.1109/ICCAD.2014.7001422

Javier de San Pedro, J. Cortadella, Antoni Roca

引用次数: 3

Planning and placing power clamps for effective CDM protection 规划和放置有效的清洁发展机制保护的电源夹

2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD) Pub Date : 2014-11-03 DOI: 10.1109/ICCAD.2014.7001423

Hsin-Chun Lin, Shih-Ying Liu, Hung-Ming Chen

引用次数: 0

Warranty-aware page management for PCM-based embedded systems 基于pcm的嵌入式系统的保修期页面管理

2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD) Pub Date : 2014-11-03 DOI: 10.1109/ICCAD.2014.7001433

Sheng-Wei Cheng, Yu-Fen Chang, Yuan-Hao Chang, H. Wei, W. Shih

{"title":"Warranty-aware page management for PCM-based embedded systems","authors":"Sheng-Wei Cheng, Yu-Fen Chang, Yuan-Hao Chang, H. Wei, W. Shih","doi":"10.1109/ICCAD.2014.7001433","DOIUrl":"https://doi.org/10.1109/ICCAD.2014.7001433","url":null,"abstract":"The thriving growth in mobile consumer electronics makes energy efficiency in the embedded system design an important and recurring theme. Phase Change Memory (PCM) has shown its potential in replacing DRAM as the main memory option due to its (65%) reduced energy requirements. However, when considering the usage of PCM main memory, its write endurance becomes a critical issue, and wear leveling design is a common approach to resolve this issue. Even though the wear leveling design should stress operation efficiency and overhead reduction, existing wear leveling strategies designed for PCM main memory are usually dedicated to prolonging the lifetime of PCM. In this paper, we propose the perspective that, instead of valuing PCM lifetime exploitation as the first priority, we should turn to satisfy the product warranty period. To this end, further enhancement of operation efficiency and reduction of management overhead could be achieved. We thus propose a warranty-aware page management design to enhance the operation efficiency for managing the endurance issue in PCM. To show the effectiveness of the proposed design, we collected real traces on fiasco. OC by running SPEC2006 benchmarks with different write intensity workloads. The experiment results showed that our design reduced the overhead to one third of that of the state-of-the-art designs while still providing the same level of performance.","PeriodicalId":426584,"journal":{"name":"2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130303796","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: 12