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Author: Prashant Saxena
Publisher: Springer Science & Business Media
ISBN: 0387485503
Category : Technology & Engineering
Languages : en
Pages : 254
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Book Description
This volume provides a complete understanding of the fundamental causes of routing congestion in present-day and next-generation VLSI circuits, offers techniques for estimating and relieving congestion, and provides a critical analysis of the accuracy and effectiveness of these techniques. The book includes metrics and optimization techniques for routing congestion at various stages of the VLSI design flow. The subjects covered include an explanation of why the problem of congestion is important and how it will trend, plus definitions of metrics that are appropriate for measuring congestion, and descriptions of techniques for estimating and optimizing routing congestion issues in cell-/library-based VLSI circuits.
Author: Prashant Saxena
Publisher: Springer Science & Business Media
ISBN: 0387485503
Category : Technology & Engineering
Languages : en
Pages : 254
Get Book Here
Book Description
This volume provides a complete understanding of the fundamental causes of routing congestion in present-day and next-generation VLSI circuits, offers techniques for estimating and relieving congestion, and provides a critical analysis of the accuracy and effectiveness of these techniques. The book includes metrics and optimization techniques for routing congestion at various stages of the VLSI design flow. The subjects covered include an explanation of why the problem of congestion is important and how it will trend, plus definitions of metrics that are appropriate for measuring congestion, and descriptions of techniques for estimating and optimizing routing congestion issues in cell-/library-based VLSI circuits.
Author: Saxena
Publisher:
ISBN: 9788184893885
Category :
Languages : en
Pages : 264
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Book Description
Author: Prashant Saxena
Publisher: Springer
ISBN: 9780387510613
Category : Technology & Engineering
Languages : en
Pages : 250
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Book Description
This volume provides a complete understanding of the fundamental causes of routing congestion in present-day and next-generation VLSI circuits, offers techniques for estimating and relieving congestion, and provides a critical analysis of the accuracy and effectiveness of these techniques. The book includes metrics and optimization techniques for routing congestion at various stages of the VLSI design flow. The subjects covered include an explanation of why the problem of congestion is important and how it will trend, plus definitions of metrics that are appropriate for measuring congestion, and descriptions of techniques for estimating and optimizing routing congestion issues in cell-/library-based VLSI circuits.
Author: Zion Cien Shen
Publisher:
ISBN:
Category :
Languages : en
Pages : 264
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Book Description
Congestion is one of the main optimization objectives in global routing; however, the optimization performance is constrained because the cells are already fixed at this stage. Therefore, a designer can save substantial time and resources by detecting and reducing congested regions during the planning stages. An efficient yet accurate congestion estimation model is crucial to be included in the inner loop of floorplanning and placement design. In this dissertation, we mainly focus on routing congestion modeling and reduction during floorplanning and placement.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
RETHINKING GLOBAL ROUTING FOR MODERN VLSI DESIGN: CONGESTION REDUCTION AND MULTI-OBJECTIVE OPTIMIZATION Hamid Shojaei Under the supervision of Professor Azadeh Davoodi At the University of Wisconsin-Madison The high volume and complexity of cells and interconnect structures are causing serious challenges to routability in modern VLSI design. Several new factors contribute to routing congestion including significantly-different wire size and spacing among the metal layers, sizes of inter-layer vias, various forms of routing blockages, local congestion due to pin density and wiring inside a global-cell, and virtual pins located at the higher metal layers. In addition, interconnects now play a significant role in impacting the performance metrics of a design including power, speed and area. Global routing, as the first stage in which the interconnects are planned, is now of significant importance in determining the performance metrics and the routability of the design. However, the standard model of global routing considers minimization of wirelength with a simplified model of routing resources which ignores these objectives and complicating factors. To address the above challenges, this dissertation has three contributions in rethinking global routing for modern VLSI design. First, we present a framework for congestion analysis for quick prediction of the locations of highly-utilized routing regions. The fast framework is suitable for integration in the design flow, for example as an integration within a routability-driven placement procedure. Second, we offer two contributions in order to estimate and manage the congestion caused by local nets which are ignored in a standard model of global routing. It allows optimizing congestion directly within global routing by treating global and detailed routing in a more holistic manner. In addition, many of the above-mentioned factors contributing to congestion are accounted for in our congestion analysis and optimization framework. Finally, we present a procedure for multi-objective global routing which is able to optimize multiple performance metrics beyond wirelength. The framework is a collaborative one which receives as input multiple global routing solutions created by single-objective procedures.
Author: Andrew B. Kahng
Publisher: Springer Nature
ISBN: 3030964159
Category : Technology & Engineering
Languages : en
Pages : 329
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Book Description
The complexity of modern chip design requires extensive use of specialized software throughout the process. To achieve the best results, a user of this software needs a high-level understanding of the underlying mathematical models and algorithms. In addition, a developer of such software must have a keen understanding of relevant computer science aspects, including algorithmic performance bottlenecks and how various algorithms operate and interact. This book introduces and compares the fundamental algorithms that are used during the IC physical design phase, wherein a geometric chip layout is produced starting from an abstract circuit design. This updated second edition includes recent advancements in the state-of-the-art of physical design, and builds upon foundational coverage of essential and fundamental techniques. Numerous examples and tasks with solutions increase the clarity of presentation and facilitate deeper understanding. A comprehensive set of slides is available on the Internet for each chapter, simplifying use of the book in instructional settings. “This improved, second edition of the book will continue to serve the EDA and design community well. It is a foundational text and reference for the next generation of professionals who will be called on to continue the advancement of our chip design tools and design the most advanced micro-electronics.” Dr. Leon Stok, Vice President, Electronic Design Automation, IBM Systems Group “This is the book I wish I had when I taught EDA in the past, and the one I’m using from now on.” Dr. Louis K. Scheffer, Howard Hughes Medical Institute “I would happily use this book when teaching Physical Design. I know of no other work that’s as comprehensive and up-to-date, with algorithmic focus and clear pseudocode for the key algorithms. The book is beautifully designed!” Prof. John P. Hayes, University of Michigan “The entire field of electronic design automation owes the authors a great debt for providing a single coherent source on physical design that is clear and tutorial in nature, while providing details on key state-of-the-art topics such as timing closure.” Prof. Kurt Keutzer, University of California, Berkeley “An excellent balance of the basics and more advanced concepts, presented by top experts in the field.” Prof. Sachin Sapatnekar, University of Minnesota
Author: Charles J. Alpert
Publisher: CRC Press
ISBN: 1000654192
Category : Computers
Languages : en
Pages : 1044
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Book Description
The physical design flow of any project depends upon the size of the design, the technology, the number of designers, the clock frequency, and the time to do the design. As technology advances and design-styles change, physical design flows are constantly reinvented as traditional phases are removed and new ones are added to accommodate changes in
Author: Patrick Lee
Publisher: Lulu.com
ISBN: 1430304928
Category : Technology & Engineering
Languages : en
Pages : 238
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Book Description
The book is organized in seven chapters. Physical design flow. Timing constraints. Place and route concepts. Tool vendors. Process constraints. Timing closure. Place and route methodology and flow. ECO and spare gates. Formal verification. Coupling noise. Chip optimization and tapeout.
Author: Hongjiang Song
Publisher: Lulu.com
ISBN: 1312799633
Category : Technology & Engineering
Languages : en
Pages : 338
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Book Description
This reference was developed for a graduate level course (EEE598: Structural VLSI Analog Circuit Design Based on Symmetry) offered in the School of Electrical, Computer and Energy Engineering at Arizona State University. The materials are organized in 24 topics including the collection of design problems in structural VLSI analog circuit design
Author: Teofilo F. Gonzalez
Publisher: CRC Press
ISBN: 1351235400
Category : Computers
Languages : en
Pages : 840
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Book Description
Handbook of Approximation Algorithms and Metaheuristics, Second Edition reflects the tremendous growth in the field, over the past two decades. Through contributions from leading experts, this handbook provides a comprehensive introduction to the underlying theory and methodologies, as well as the various applications of approximation algorithms and metaheuristics. Volume 1 of this two-volume set deals primarily with methodologies and traditional applications. It includes restriction, relaxation, local ratio, approximation schemes, randomization, tabu search, evolutionary computation, local search, neural networks, and other metaheuristics. It also explores multi-objective optimization, reoptimization, sensitivity analysis, and stability. Traditional applications covered include: bin packing, multi-dimensional packing, Steiner trees, traveling salesperson, scheduling, and related problems. Volume 2 focuses on the contemporary and emerging applications of methodologies to problems in combinatorial optimization, computational geometry and graphs problems, as well as in large-scale and emerging application areas. It includes approximation algorithms and heuristics for clustering, networks (sensor and wireless), communication, bioinformatics search, streams, virtual communities, and more. About the Editor Teofilo F. Gonzalez is a professor emeritus of computer science at the University of California, Santa Barbara. He completed his Ph.D. in 1975 from the University of Minnesota. He taught at the University of Oklahoma, the Pennsylvania State University, and the University of Texas at Dallas, before joining the UCSB computer science faculty in 1984. He spent sabbatical leaves at the Monterrey Institute of Technology and Higher Education and Utrecht University. He is known for his highly cited pioneering research in the hardness of approximation; for his sublinear and best possible approximation algorithm for k-tMM clustering; for introducing the open-shop scheduling problem as well as algorithms for its solution that have found applications in numerous research areas; as well as for his research on problems in the areas of job scheduling, graph algorithms, computational geometry, message communication, wire routing, etc.
