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Low-power mapping algorithm for three-dimensional network-on-chip based on diversity-controlled quantum-behaved particle swarm optimization

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JOURNAL OF algorithmS & COMPUTATIONAL TECHNOLOGY 2016年第3期10卷 176-186页

作者： Huang, Cui Zhang, Dakun Song, Guozhi Tianjin Polytech Univ Sch Comp Sci & Software Engn Tianjin 300387 Peoples R China

Three-dimensional network on chip (3D NoC) is developed based on three-dimensional integrated circuit, system on chip and two-dimensional network on chip. The 3D NoC is mainly used to solve the problems such as communication bottleneck of highly integrated chips. mapping of 3D NoC is a key problem in the research area of 3D NoC. The authors proposed a low-power mapping algorithm based on quantum-behaved particle swarm optimization. Simulation results show that the proposed algorithm can significantly reduce power consumption, but with large-scale application characteristic graph, the efficiency of power optimization cannot be improved very much. To solve this problem, a low-power mapping algorithm for 3D NoC based on diversity-controlled quantum-behaved particle swarm optimization is proposed in this paper. Simulation results show that for large-scale application characteristic graph, this algorithm is able to maintain a stable power optimization efficiency (4.08-8.04%) and converges much faster.

关键词： Three-dimensional network on chip mapping algorithm quantum-behaved particle swarm optimization diversity-controlled low-power

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ABeeMap: A mapping algorithm based on Multi-Objective Artificial Bee Colony 25

ABeeMap: A Mapping Algorithm based on Multi-Objective Artifi...

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25th International Workshop on Power and Timing Modeling, Optimization and Simulation (PATMOS)

作者： Souza, V. L. Silva-Filho, A. G. Wanderely, V. C. Univ Fed Pernambuco Informat Ctr CIn Recife PE Brazil Fed Inst Pernambuco Off Innovat Technol NIT Recife PE Brazil

ISBN: (纸本)9781467394192

This paper presents the ABeeMap, a new approach to FPGA technology mapping. The mapper is based on a hybrid approach that uses pareto-dominance based asynchronous multi-objective Artificial Bee Colony associated with specific heuristics of the problem in order to find better trade-off results among area, performance and power consumption. In a set of 20 designs, we find that in comparison to state-of-the-art technology mapping, our approach is able to reduce the LUT counts and the edge counts. Placing and routing the resulting netlist leads to reduction in the configurable logic blocks count, increasing in estimated operation frequency and reduction in energy consumption.

关键词： FPGA mapping algorithm Artifitial Bee Colony

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An Optimal mapping algorithm Based on Balanced Load Cutting for DVE Systems

An Optimal Mapping Algorithm Based on Balanced Load Cutting ...

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3rd International Symposium on Intelligent Information Technology Application

作者： Zhang, Wei Xi, Min Zhou, Hangjun Peng, Yuxing Li, Sikun Natl Univ Def Technol Sch Comp Sci Natl Lab Parallel & Distributed Proc Changsha 410073 Hunan Peoples R China Xi An Jiao Tong Univ Dept Comp Sci Xian 710049 Peoples R China

ISBN: (纸本)9780769538594

In Distributed Virtual Environment (DVE) systems, a distributed server infrastructure is often used to reduce the latency between servers and clients. Under this infrastructure, mapping clients to proper servers is one of the key issues for improving the interactivity and overall performance. Most traditional methods of mapping the clients to servers only consider the load balancing problem. However, there are two other important aspects that should be involved: the physical world integrity and the virtual world integrity. In this work, we propose a novel mapping algorithm which takes care of all three aspects at the same time. The algorithm converts the mapping problem into cutting stage and matching stage to get optimal result with polynomial complexity. The experimental results show that our algorithm improves the overall performance of DVE systems significantly.

关键词： DVE systems mapping algorithm cutting algorithm

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An Energy-Aware mapping algorithm for Mesh-based Network-on-Chip Architectures 5

An Energy-Aware Mapping Algorithm for Mesh-based Network-on-...

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2017 International Conference on Progress in Informatics and Computing(PIC)

作者： Jin Sun Yi Zhang School of Computer Science and Engineering Nanjing University of Science and Technology

ISBN: (纸本)9781538619797;9781538619780

Network-on-chip（NoC） mapping algorithms significantly affect NoC system performance in terms of communication cost and energy consumption. For a specific application represented by a task graph, this paper proposes an energyaware mapping algorithm that searches for the mapping solution with best communication locality and therefore lowest energy consumption. During the search procedure, we employ a simulation-free, communication locality-based energy model to evaluate the quality of each candidate mapping. By iteratively updating the best candidate mapping using a greedy search heuristic, the search procedure converges to an mapping decision with optimal energy efficiency in the search space. Compared with the round-robin mapping strategy, the proposed method is capable of exploring energy-efficient mapping decision for various applications as well as network sizes.

关键词： network-on-chip mapping algorithm communication probability energy efficiency

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A Lifetime-aware mapping algorithm to Extend MTTF of Networks-on-Chip 18

A Lifetime-aware Mapping Algorithm to Extend MTTF of Network...

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23rd Asia and South Pacific Design Automation Conference (ASP-DAC)

作者： Huang, Letian Chen, Shuyu Wu, Qiong Ebrahimi, Masoumeh Wang, Junshi Jiang, Shuyan Li, Qiang Univ Elect Sci & Technol China Chengdu 611731 Sichuan Peoples R China Royal Inst Technol KTH Stockholm Sweden

ISBN: (纸本)9781509006021

Fast aging of components has become one of the major concerns in Systems-on-Chip with further scaling of the submicron technology. This problem accelerates when combined with improper working conditions such as unbalanced components' utilization. Considering the mapping algorithms in the Networks-on-Chip domain, some routers/links might be frequently selected for mapping while others are underutilized. Consequently, the highly utilized components may age faster than others which results in disconnecting the related cores from the network. To address this issue, we propose a mapping algorithm, called lifetime-aware neighborhood allocation (LaNA), that takes the aging of components into account when mapping applications. The proposed method is able to balance the wear-out of NoC components, and thus extending the service time of NoC. We model the lifetime as a resource consumed over time and accordingly define the lifetime budget metric. LaNA selects a suitable node for mapping which has the maximum lifetime budget. Experimental results show that the lifetime-aware mapping algorithm could improve the minimal MTTF of NoC around 72.2%, 58.3%, 46.6% and 48.2% as compared to NN, CoNA, WeNA and CASqA, respectively.

关键词： many-core system Network-on-Chip mapping algorithm lifetime reliability

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Configurable Links for 3D Network On-Chip based on mapping algorithm 13

Configurable Links for 3D Network On-Chip based on Mapping A...

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2016 13th IEEE International Conference on Solid-State and Integrated Circuit Technology (ICSICT)

作者： Yi Liu Yu-Ting Niu Chang-Qing Xu Department of Microelectronics Xidian University

ISBN: (纸本)9781467397209

Network-on-chip(No C) emerged as a promising alternative to the bus and point-to-point communication architectures. Recently 3D No C become a hot *** complex 3D No Cs will generate a large amount of data to deal with, No Cs suffer from intermittent congestions and link overflows, especially when the network bandwidth is limited by the area and energy budget. In this paper, we explore a technique for balance link bandwidth based mapping algorithm dedicated to No C. After mapping we double the link bandwidth according to the high-bandwidth allocation through the network busy nodes, while the remaining links bandwidth assignment unchanged. Experiments results show that the network average delay is reduced by 25%through doubling the central loop bandwidth.

关键词： Network-on-chip mapping algorithm configurable links

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Brightness improvement of color display systems using white sub-pixel structure and fuzzy mapping algorithm

Brightness improvement of color display systems using white ...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Chih-Chang Lai Ching-Chih Tsai Han-Chang Lin Natl Chung Hsing Univ Dept Elect Engn Taichung 40227 Taiwan Wintek Corp Taichung Taiwan

ISBN: (纸本)9781424400997

This paper develops an fuzzy mapping methodology for brightness improvement of color display systems using white sub-pixels. Based on human vision discrimination, three novel white sub-pixel filter structures without loss of original resolution are presented to enhance brightness of conventional stripe, Delta and PenTile color filter architectures. A new mapping fuzzy algorithm using RGB sub-pixel data around a white subpixel is proposed to improve overall image quality. Numerous simulation results are provided to show the efficacy of the proposed method for improving conventional stripe, delta and PenTile display systems. Experimental results are described which has been conducted to show that the proposed color display system performs well for electronic consumer products, such as notebooks, personal digital assistants, and mobile phone, etc.

关键词： brightness color display systems color filter mapping algorithm

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Brightness Improvement of Color Display Systems Using White Sub-pixel Structure and mapping algorithm

Brightness Improvement of Color Display Systems Using White ...

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30th Annual Conference of the IEEE-Industrial-Electronics-Society (IECON)

作者： Lai, Chih-Chang Tsai, Ching-Chih Lin, Han-Chang Natl Chung Hsing Univ Dept Elect Engn Taichung 40227 Taiwan

ISBN: (纸本)9780780387300

This paper develops methodology and technique for brightness improvement of color display systems using white sub-pixels. Based on human vision discrimination, three novel white sub-pixel filter structures without loss of original resolution are presented to enhance brightness of conventional stripe, Delta and PenTile color filter architectures, A new mapping algorithm fusing RGB sub-pixel data around a white sub-pixel is proposed to improve overall image quality. Numerous simulation results are provided to show the feasibility and efficacy of the proposed method for improving conventional stripe, delta and PenTile display systems. Experimental result is described which has been conducted to show that the proposed color display system performs well for electronic consumer products, such as notebooks, personal digital assistants, and mobile phone, etc.

关键词： Brightness color display systems color filter mapping algorithm

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A Communication Probability-Based mapping algorithm for Mesh-Based Network-on-Chip Systems

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JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS 2018年第14期27卷 1850226.1-1850226.21页

作者： Sun, Jin Zhang, Yi Nanjing Univ Sci & Technol Sch Comp Sci & Engn 200 Xiaolingwei St Nanjing 210094 Jiangsu Peoples R China

Network-on-chip (NoC) mapping algorithms significantly affect NoC system performance in terms of communication cost and energy consumption. For a specific application represented by a task graph, this paper proposes an energy-efficient mapping algorithm that searches for the mapping decision with best communication locality and therefore lowest energy consumption. To this end, we formulate the concerned mapping problem as an optimization model, and propose an effective meta-heuristic algorithm to solve the formulated optimization model. During the mapping procedure, we employ a simulation-free, communication probability-based energy model to evaluate the quality of each candidate mapping. By iteratively updating the best explored mapping decision using a meta-heuristic search strategy, the mapping procedure can eventually identify an mapping decision with optimal energy efficiency in the search space. The proposed mapping algorithm has been verified on NoC systems of different sizes using a variety of benchmark applications. Simulation results demonstrate that the mapping decision produced by this algorithm achieves an up to 23% energy reduction compared with the traditional round-robin strategy.

关键词： Network-on-chip mapping algorithm communication probability energy efficiency

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CCMapper: An adaptive NLP-based free-text chief complaint mapping algorithm

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COMPUTERS IN BIOLOGY AND MEDICINE 2019年 113卷 103398-000页

作者： Tootooni, Mohammad Samie Pasupathy, Kalyan S. Heaton, Heather A. Clements, Casey M. Sir, Mustafa Y. Loyola Univ Chicago Dept Hlth Informat & Data Sci Maywood IL USA Loyola Univ Chicago Ctr Hlth Outcomes & Informat Res Maywood IL USA Mayo Clin Dept Hlth Sci Res 200 1st St SW Rochester MN 55905 USA Mayo Clin Robert D & Patricia E Kern Ctr Sci Hlth Care Deli Rochester MN 55905 USA Mayo Clin Dept Emergency Med Rochester MN 55905 USA

Objective: Chief complaint (CC) is among the earliest health information recorded at the beginning of a patient's visit to an emergency department (ED). We propose a heuristic methodology for automatically mapping the free-text data into a structured list of CCs. Methods: A comprehensive structured list categorizing CCs was developed by experienced Emergency Medicine (EM) physicians. Using this list, we developed a natural language processing-based algorithm, referred to as Chief Complaint Mapper (CCMapper), for automatically mapping a CC into the most appropriate category (ies). We trained and validated CCMapper using free-text CC data from the Mayo Clinic ED in Rochester, MN. We developed a consensus-based validation approach to handle both indifferences and disagreements between the two EM physicians who manually mapped a random sample of free-text CCs into categories within the structured list. Results: The kappa statistic demonstrated a high level of agreement (kappa = 0.958) between the two physicians with less than 2% human error. CCMapper achieved a total sensitivity of 94.2% with a specificity of 99.8% and F-score of 94.7% on the validation set. The sensitivity of CCMapper when mapping free-text data with multiple CCs was 82.3% with a specificity of 99.1% and total F-score of 82.3%. Conclusion: Due to its simplicity, high performance, and capability of incorporating new free-text CC data, CCMapper can be readily adopted by other EDs to support clinical decision making. CCMapper can facilitate the development of predictive models for the type and timing of important events in ED (e.g., ICU admission).

关键词： Natural language processing Free-text chief complaints Emergency department mapping algorithm Heuristic Iterative enhancement Human consensus-based validation

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