Contributions à l'ordonnancement et l'analyse des systèmes temps réel critiques

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ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.:/5 (758 download)

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Book Synopsis Contributions à l'ordonnancement et l'analyse des systèmes temps réel critiques by : François Dorin

Download or read book Contributions à l'ordonnancement et l'analyse des systèmes temps réel critiques written by François Dorin and published by . This book was released on 2010 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans nos travaux, nous nous sommes intéressés aux politiques d'ordonnancement en-ligne, pour lesquelles l'ordre d'exécution des tâches est déterminé sur la base des tâches actives dans le système et sans connaissance a priori des tâches qui arriveront dans le futur. Cette problématique s'étend aux réseaux informatiques pour ordonnancer les messages sur le réseau informatique interconnectant les différents calculateurs du système temps réel. La première contribution concerne le placement et ordonnancement simultanés des tâches dans un système temps réel distribué, permettant de minimiser le nombre de processeurs nécessaires pour respecter les spécifications temporelles des tâches. La seconde contribution concerne les tâches à criticité multiple. L'objectif de ce modèle est de prendre en compte la notion de criticité des différentes tâches, comme par exemple dans la norme DO-178B utilisée en aéronautique. Enfin, nous nous sommes intéressés aux systèmes multiprocesseurs ordonnancés par des algorithmes d'ordonnancement semi-partitionné. Cette classe d'algorithme utilise une stratégie par partitionnement pour répartir les tâches parmi les processeurs tout en autorisant la migration des tâches qui ne peuvent pas être actées à un processeur donné sans violation d'échéance.

IoT-Enabled Energy Efficiency Assessment of Renewable Energy Systems and Micro-grids in Smart Cities

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Publisher : Springer Nature
ISBN 13 : 3031606299
Total Pages : 517 pages
Book Rating : 4.0/5 (316 download)

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Book Synopsis IoT-Enabled Energy Efficiency Assessment of Renewable Energy Systems and Micro-grids in Smart Cities by : Mustapha Hatti

Download or read book IoT-Enabled Energy Efficiency Assessment of Renewable Energy Systems and Micro-grids in Smart Cities written by Mustapha Hatti and published by Springer Nature. This book was released on with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Contribution à l'analyse d'ordonnançabilité des applications temps-réel multiprocesseurs

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ISBN 13 :
Total Pages : 167 pages
Book Rating : 4.:/5 (871 download)

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Book Synopsis Contribution à l'analyse d'ordonnançabilité des applications temps-réel multiprocesseurs by : Sadouanouan Malo

Download or read book Contribution à l'analyse d'ordonnançabilité des applications temps-réel multiprocesseurs written by Sadouanouan Malo and published by . This book was released on 2010 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les applications temps-réel, le plus souvent dédiées au contrôle de procédé, sont soumises à des contraintes temporelles strictes, destinées à garantir la sécurité et la cohérence du procédé contrôlé. Etant des applications multi tâches, elles doivent être ordonnancées, le critère sine qua non de qualité de la stratégie d'ordonnancement étant la garantie du respect des contraintes temporelles. Ces applications sont de plus en plus déployées sur des architectures multiprocesseurs. Dans ce contexte, de nombreux problèmes d'ordonnancement doivent encore être abordés. Tout d'abord, il n'existe pas d'ordonnancement en ligne optimal dans ce contexte dans le cas général, le problème de l'ordonnancement est NP-complet, et des anomalies d'ordonnancement apparaissent. Nous avons envisagé de prendre en compte la possibilité qu'une panne processeur survienne et nous avons étudié les mécanismes de reprise après la panne dans le cas où l'application est ordonnancée par EDF, puis par un algorithme P-équitable. Ces mécanismes nécessitent de disposer d'un certain nombre de résultats généraux. Nous avons donc étendu la définition de la P-équité à un contexte plus large que celui de la littérature, puis nous avons établi une condition suffisante d'ordonnançabilité dans ce contexte. Enfin, nous avons proposé un protocole efficace de gestion des flux apériodiques qui s'appuie sur une distribution P-équitable des temps creux. Cette répartition peut être obtenue soit en ordonnançant les tâches périodiques par une stratégie P-équitable quand le contexte le permet, soit via une analyse hors-ligne à base de réseaux de Petri.

Ordonnancement en-ligne temps réel critique dans les systèmes distribues

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ISBN 13 :
Total Pages : 342 pages
Book Rating : 4.:/5 (49 download)

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Book Synopsis Ordonnancement en-ligne temps réel critique dans les systèmes distribues by : Laurent George

Download or read book Ordonnancement en-ligne temps réel critique dans les systèmes distribues written by Laurent George and published by . This book was released on 1998 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les systèmes distribués temps réel critique sont des systèmes distribués bien spécifiques pour lesquels les techniques d'analyse en moyenne avec ou sans simulation ne sont pas satisfaisantes. Il est nécessaire de garantir que tout au long de la vie du système, les contraintes temporelles associées aux tâches exécutées dans le système seront toujours respectées. A ces contraintes temporelles sont le plus souvent associées des contraintes de haute disponibilité des services fournis par le système. Contraintes pour lesquelles il est nécessaire de mettre en oeuvre des techniques de tolérance aux fautes particulières. Nous nous intéressons aux problèmes de conception et dimensionnement de systèmes ou se conjuguent les problèmes de temps réel, de traitement distribué et de tolérance aux fautes (trdf). Cette thèse montre comment il est possible d'étendre des résultats d'ordonnancement établis en contexte monoprocesseur centralise pour résoudre deux problèmes trdf. nous étudions plus particulièrement les politiques d'ordonnancement à bases de priorités fixes (rate monotonic, deadline monotonic ou arbitraire) et dynamiques (earliest deadline first, fifo notamment) en contexte préemptif et non préemptif. Les différents résultats établis en contexte non préemptif centralise sont ensuite étendus pour résoudre les deux problèmes trdf suivants : diffusion temps réel dans un groupe : (multicast) nous décrivons une famille de protocoles de diffusion atomique uniforme avec un temps de réponse de bout en bout borne. La famille de protocoles utilise l'ordonnancement earliest deadline first (edf). traitement reparti temps réel : Nous traitons un problème d'algorithmique distribuée avec maintien de relation d'ordre (l'ordre d'occurrence des évènements). Nous montrons comment maintenir la cohérence de données reparties en présence d'accès concurrents avec un temps de réponse garanti. Une analyse de faisabilité associée a l'ordonnancement FIFO est réalisée. Cette analyse est basée sur le calcul du pire temps de réponse des tâches du système.

Rail International

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ISBN 13 :
Total Pages : 1012 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Rail International by :

Download or read book Rail International written by and published by . This book was released on 1982 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Human Performance in Planning and Scheduling

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Publisher : CRC Press
ISBN 13 : 0203305949
Total Pages : 479 pages
Book Rating : 4.2/5 (33 download)

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Book Synopsis Human Performance in Planning and Scheduling by : B L MacCarthy

Download or read book Human Performance in Planning and Scheduling written by B L MacCarthy and published by CRC Press. This book was released on 2003-09-02 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding how to make the best of human skills and knowledge is essential in the design of technology and jobs, particularly where these involve decision-making and uncertainty. Recent developments have been made in naturalistic decision-making, distributed cognition and situational awareness, particularly with respect to aviation, transport and strategic planning, the nuclear industry and other high-risk industries. Despite the integration of computer-based support systems in production scheduling in recent years, the reality is that most enterprises consist of reactive re-scheduling, involving a high degree of human involvement. It is often with the insight, knowledge and skills of people that scheduling skills can function with any degree of success. Human Performance in Planning and Scheduling covers many industries, including clothing, steel, machine tools, paper/board, and the automobile industry. Using international case studies from various manufacturing industries, they highlight the fact that the human scheduler is a pivotal element in the scheduling process. Each section of the book includes an introduction with an overview of the material to follow, clearly identifying themes, discussion points and highlights inter-connections between the authors' work.

Demand Driven Material Requirements Planning (DDMRP)

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Publisher : Industrial Press
ISBN 13 : 9780831136284
Total Pages : 0 pages
Book Rating : 4.1/5 (362 download)

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Book Synopsis Demand Driven Material Requirements Planning (DDMRP) by : Carol Ptak

Download or read book Demand Driven Material Requirements Planning (DDMRP) written by Carol Ptak and published by Industrial Press. This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "An intuitive proven planning and execution method for today's complex and volatile supply chains"--Cover.

Real-time Systems and Their Programming Languages

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Publisher : Addison Wesley Publishing Company
ISBN 13 :
Total Pages : 600 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Real-time Systems and Their Programming Languages by : Alan Burns

Download or read book Real-time Systems and Their Programming Languages written by Alan Burns and published by Addison Wesley Publishing Company. This book was released on 1990 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: A survey of real-time systems and the programming languages used in their development. Shows how modern real-time programming techniques are used in a wide variety of applications, including robotics, factory automation, and control. A critical requirement for such systems is that the software must

Philosophy manual: a South-South perspective

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Publisher : UNESCO Publishing
ISBN 13 : 9231010069
Total Pages : 236 pages
Book Rating : 4.2/5 (31 download)

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Book Synopsis Philosophy manual: a South-South perspective by : Chanthalangsy, Phinith

Download or read book Philosophy manual: a South-South perspective written by Chanthalangsy, Phinith and published by UNESCO Publishing. This book was released on 2014-12-31 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Building Parallel, Embedded, and Real-Time Applications with Ada

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Publisher : Cambridge University Press
ISBN 13 : 1139500007
Total Pages : 387 pages
Book Rating : 4.1/5 (395 download)

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Book Synopsis Building Parallel, Embedded, and Real-Time Applications with Ada by : John W. McCormick

Download or read book Building Parallel, Embedded, and Real-Time Applications with Ada written by John W. McCormick and published by Cambridge University Press. This book was released on 2011-04-07 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: The arrival and popularity of multi-core processors has sparked a renewed interest in the development of parallel programs. Similarly, the availability of low-cost microprocessors and sensors has generated a great interest in embedded real-time programs. This book provides students and programmers whose backgrounds are in traditional sequential programming with the opportunity to expand their capabilities into parallel, embedded, real-time and distributed computing. It also addresses the theoretical foundation of real-time scheduling analysis, focusing on theory that is useful for actual applications. Written by award-winning educators at a level suitable for undergraduates and beginning graduate students, this book is the first truly entry-level textbook in the subject. Complete examples allow readers to understand the context in which a new concept is used, and enable them to build and run the examples, make changes, and observe the results.

Supply Chain Management

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Publisher : SAGE
ISBN 13 : 9780761921110
Total Pages : 530 pages
Book Rating : 4.9/5 (211 download)

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Book Synopsis Supply Chain Management by : John T. Mentzer

Download or read book Supply Chain Management written by John T. Mentzer and published by SAGE. This book was released on 2001 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents a comprehensive model of supply chain management. Experienced executives from 20 companies clearly define supply chain management, identifying those factors that contribute to its effective implementation. They provide practical guidelines on how companies can manage supply chains, addressing the role of all the traditional business functions in supply chain management and suggest how the adoption of a supply chain management approach can affect business strategy and corporate performance.

Public Expenditure Trends

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Publisher : Organisation for Economic Co-operation and Development ; [Washington, D.C. : sold by OECD Publications Center]
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Public Expenditure Trends by : Organisation for Economic Co-operation and Development

Download or read book Public Expenditure Trends written by Organisation for Economic Co-operation and Development and published by Organisation for Economic Co-operation and Development ; [Washington, D.C. : sold by OECD Publications Center]. This book was released on 1978 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1978 report discusses trends and prospects for public expenditures and revenues.

The Resilient Enterprise

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Publisher : MIT Press
ISBN 13 : 0262250624
Total Pages : 323 pages
Book Rating : 4.2/5 (622 download)

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Book Synopsis The Resilient Enterprise by : Yossi Sheffi

Download or read book The Resilient Enterprise written by Yossi Sheffi and published by MIT Press. This book was released on 2007-02-23 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stories from Nokia, Dell, UPS, Toyota, and other companies show how firms can reduce their vulnerability to high-impact distributions, from earthquakes to strikes, from SARS to terrorism, and use them for competitive advantage. What happens when fire strikes the manufacturing plant of the sole supplier for the brake pressure valve used in every Toyota? When a hurricane shuts down production at a Unilever plant? When Dell and Apple chip manufacturers in Taiwan take weeks to recover from an earthquake? When the U.S. Pacific ports are shut down during the Christmas rush? When terrorists strike? In The Resilient Enterprise, Yossi Sheffi shows that companies' fortunes in the face of such business shocks depend more on choices made before the disruption than they do on actions taken in the midst of it—and that resilience benefits firms every day, disaster or no disaster. He shows how companies can build in flexibility throughout their supply chains, based on proven design principles and the right culture—balancing security, redundancy, and short-term profits. And he shows how investments in resilience and flexibility not only reduce risk but create a competitive advantage in the increasingly volatile marketplace.Sheffi describes the way companies can increase security—reducing the likelihood of a disruption—with layered defenses, the tracking and analysis of “near-misses,” fast detection, and close collaboration with government agencies, trading partners, and even competitors. But the focus of the book is on resilience—the ability to bounce back from disruptions and disasters—by building in redundancy and flexibility. For example, standardization, modular design, and collaborative relationships with suppliers (and other stakeholders) can help create a robust supply chain. And a corporate culture of flexibility—with distributed decision making and communications at all levels—can create a resilient enterprise.Sheffi provides tools for companies to reduce the vulnerability of the supply chain they live in. And along the way he tells the stories of dozens of enterprises, large and small, including Toyota, Nokia, General Motors, Zara, Land Rover, Chiquita, Aisin Seiki, Southwest Airlines, UPS, Johnson and Johnson, Intel, Amazon.com, the U.S. Navy, and others, from across the globe. Their successes, failures, preparations, and methods provide a rich set of lessons in preparing for and managing disruptions. Additional material available at www.TheResilientEnterprise.com.

Multiprocessor Systems-on-Chips

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Publisher : Morgan Kaufmann
ISBN 13 : 012385251X
Total Pages : 604 pages
Book Rating : 4.1/5 (238 download)

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Book Synopsis Multiprocessor Systems-on-Chips by : Ahmed Jerraya

Download or read book Multiprocessor Systems-on-Chips written by Ahmed Jerraya and published by Morgan Kaufmann. This book was released on 2005 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern system-on-chip (SoC) design shows a clear trend toward integration of multiple processor cores on a single chip. Designing a multiprocessor system-on-chip (MPSOC) requires an understanding of the various design styles and techniques used in the multiprocessor. Understanding the application area of the MPSOC is also critical to making proper tradeoffs and design decisions. Multiprocessor Systems-on-Chips covers both design techniques and applications for MPSOCs. Design topics include multiprocessor architectures, processors, operating systems, compilers, methodologies, and synthesis algorithms, and application areas covered include telecommunications and multimedia. The majority of the chapters were collected from presentations made at the International Workshop on Application-Specific Multi-Processor SoC held over the past two years. The workshop assembled internationally recognized speakers on the range of topics relevant to MPSOCs. After having refined their material at the workshop, the speakers are now writing chapters and the editors are fashioning them into a unified book by making connections between chapters and developing common terminology. *Examines several different architectures and the constraints imposed on them *Discusses scheduling, real-time operating systems, and compilers *Analyzes design trade-off and decisions in telecommunications and multimedia applications

ENTERprise Information Systems, Part I

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Publisher : Springer
ISBN 13 : 3642164021
Total Pages : 472 pages
Book Rating : 4.6/5 (421 download)

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Book Synopsis ENTERprise Information Systems, Part I by : Joao Eduardo Quintela Varajao

Download or read book ENTERprise Information Systems, Part I written by Joao Eduardo Quintela Varajao and published by Springer. This book was released on 2010-12-02 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the International Conference on ENTERprise information systems, held Viana do Castelo, Portugal, in October 2010.

Advances in Production Management Systems. Artificial Intelligence for Sustainable and Resilient Production Systems

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Publisher : Springer Nature
ISBN 13 : 303085874X
Total Pages : 779 pages
Book Rating : 4.0/5 (38 download)

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Book Synopsis Advances in Production Management Systems. Artificial Intelligence for Sustainable and Resilient Production Systems by : Alexandre Dolgui

Download or read book Advances in Production Management Systems. Artificial Intelligence for Sustainable and Resilient Production Systems written by Alexandre Dolgui and published by Springer Nature. This book was released on 2021-08-31 with total page 779 pages. Available in PDF, EPUB and Kindle. Book excerpt: The five-volume set IFIP AICT 630, 631, 632, 633, and 634 constitutes the refereed proceedings of the International IFIP WG 5.7 Conference on Advances in Production Management Systems, APMS 2021, held in Nantes, France, in September 2021.* The 378 papers presented were carefully reviewed and selected from 529 submissions. They discuss artificial intelligence techniques, decision aid and new and renewed paradigms for sustainable and resilient production systems at four-wall factory and value chain levels. The papers are organized in the following topical sections: Part I: artificial intelligence based optimization techniques for demand-driven manufacturing; hybrid approaches for production planning and scheduling; intelligent systems for manufacturing planning and control in the industry 4.0; learning and robust decision support systems for agile manufacturing environments; low-code and model-driven engineering for production system; meta-heuristics and optimization techniques for energy-oriented manufacturing systems; metaheuristics for production systems; modern analytics and new AI-based smart techniques for replenishment and production planning under uncertainty; system identification for manufacturing control applications; and the future of lean thinking and practice Part II: digital transformation of SME manufacturers: the crucial role of standard; digital transformations towards supply chain resiliency; engineering of smart-product-service-systems of the future; lean and Six Sigma in services healthcare; new trends and challenges in reconfigurable, flexible or agile production system; production management in food supply chains; and sustainability in production planning and lot-sizing Part III: autonomous robots in delivery logistics; digital transformation approaches in production management; finance-driven supply chain; gastronomic service system design; modern scheduling and applications in industry 4.0; recent advances in sustainable manufacturing; regular session: green production and circularity concepts; regular session: improvement models and methods for green and innovative systems; regular session: supply chain and routing management; regular session: robotics and human aspects; regular session: classification and data management methods; smart supply chain and production in society 5.0 era; and supply chain risk management under coronavirus Part IV: AI for resilience in global supply chain networks in the context of pandemic disruptions; blockchain in the operations and supply chain management; data-based services as key enablers for smart products, manufacturing and assembly; data-driven methods for supply chain optimization; digital twins based on systems engineering and semantic modeling; digital twins in companies first developments and future challenges; human-centered artificial intelligence in smart manufacturing for the operator 4.0; operations management in engineer-to-order manufacturing; product and asset life cycle management for smart and sustainable manufacturing systems; robotics technologies for control, smart manufacturing and logistics; serious games analytics: improving games and learning support; smart and sustainable production and supply chains; smart methods and techniques for sustainable supply chain management; the new digital lean manufacturing paradigm; and the role of emerging technologies in disaster relief operations: lessons from COVID-19 Part V: data-driven platforms and applications in production and logistics: digital twins and AI for sustainability; regular session: new approaches for routing problem solving; regular session: improvement of design and operation of manufacturing systems; regular session: crossdock and transportation issues; regular session: maintenance improvement and lifecycle management; regular session: additive manufacturing and mass customization; regular session: frameworks and conceptual modelling for systems and services efficiency; regular session: optimization of production and transportation systems; regular session: optimization of supply chain agility and reconfigurability; regular session: advanced modelling approaches; regular session: simulation and optimization of systems performances; regular session: AI-based approaches for quality and performance improvement of production systems; and regular session: risk and performance management of supply chains *The conference was held online.

Army and Power in the Ancient World

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Publisher : Franz Steiner Verlag
ISBN 13 : 9783515081979
Total Pages : 218 pages
Book Rating : 4.0/5 (819 download)

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Book Synopsis Army and Power in the Ancient World by : Άγγελος Χανιώτης

Download or read book Army and Power in the Ancient World written by Άγγελος Χανιώτης and published by Franz Steiner Verlag. This book was released on 2002 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers from a round table held Aug. 9, 2000, in Oslo.