Download or read book A DEVS Based Schedulability Analysis Framework for Real Time Multicore Systems written by and published by . This book was released on 2020 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: At present, real-time systems have become widely used in many fields. The major challenge in designing real-time systems are the time constraints. In this work, we build a framework to simulate the scheduler in real-time operating systems based on discrete event system specification (DEVS) formalism. And we use different schedulability research methods to explore the difference of schedulability between different scheduling algorithms.
Download or read book Multiprocessor Scheduling for Real Time Systems written by Sanjoy Baruah and published by Springer. This book was released on 2015-01-02 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of both theoretical and pragmatic aspects of resource-allocation and scheduling in multiprocessor and multicore hard-real-time systems. The authors derive new, abstract models of real-time tasks that capture accurately the salient features of real application systems that are to be implemented on multiprocessor platforms, and identify rules for mapping application systems onto the most appropriate models. New run-time multiprocessor scheduling algorithms are presented, which are demonstrably better than those currently used, both in terms of run-time efficiency and tractability of off-line analysis. Readers will benefit from a new design and analysis framework for multiprocessor real-time systems, which will translate into a significantly enhanced ability to provide formally verified, safety-critical real-time systems at a significantly lower cost.
Download or read book Model based Framework for Using Advanced Scheduling Theory in Real time Systems Design written by Yassine Ouhammou and published by . This book was released on 2013 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Real-time embedded systems need to be analyzed at an early stage in order to detect temporal vulnerabilities. Indeed, software development costs are sharply impacted by wrong design choices made in the early stages of development, in particular during the design phase, but often detected after the implementation. The schedulability analysis is one of the main analyses required to ensure the timing correctness of a real-time system. Indeed, the real-time scheduling theory has been devoted to propose different models providing several levels of expressiveness, and different analytical methods with different levels of accuracy. The utilization of the real-time scheduling theory in practical cases could be profitable. Unfortunately, it is not sufficiently applied and research results have been exploited in an industrial context only to amodest extent to date. Actually, a difficulty faced by the real-time designers is to find the appropriate analysis test shelping to validate properly the system and also to reduce the over-dimensioning. This thesis is interested in the chasmexisting between real-time design community and real-time analysis community. The purpose of our work is to fill the gap between the modeling of real-time systems and the scheduling analysis. Then, we propose a decision aiding solution based on model-driven engineering. Our solution is dedicated (i) to increase the usage of the real-time scheduling theory,(ii) to facilitate the scheduling analysis tests choice and (iii) to reduce the pessimism during the design phase of real-time systems. Our proposal is embodied as a framework unifying the designers and analysts efforts. The framework called MoSaRT offers a design language very close to the taxonomy of real-time scheduling theory. Moreover, MoSaRT provides ananalysis repository concept to enhance the applicability of the scheduling theory and also to improve the way designers check their designs.
Download or read book Schedulability Analysis of Non preemptive Real time Scheduling for Multicore Processors with Shared Caches written by Jun Xiao and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Generic Approach to Schedulability Analysis of Real time Systems written by Elena Fersman and published by . This book was released on 2003 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This Ph.D. dissertation presents a framework design, analysis and implementation of embedded systems. A model of timed automata with extended asynchronous processes is adopted, i.e. tasks triggered by events. A task is an executable program characterized "
Download or read book Smart Intelligent Computing and Applications Volume 2 written by Suresh Chandra Satapathy and published by Springer Nature. This book was released on 2022-05-21 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceeding presents best selected papers presented at 5th International Conference on Smart Computing and Informatics (SCI 2020), held at Department of Computer Science and Engineering, Vasavi College of Engineering, Hyderabad, Telangana, India, during 17 – 18 September 2021. It presents advanced and multi-disciplinary research towards the design of smart computing and informatics. The theme is on a broader front focuses on various innovation paradigms in system knowledge, intelligence and sustainability that may be applied to provide realistic solutions to varied problems in society, environment and industries. The scope is also extended towards the deployment of emerging computational and knowledge transfer approaches, optimizing solutions in various disciplines of science, technology and healthcare. The work is published in two volumes.
Download or read book Schedulability Analysis of Real time Mode Change for Imprecise Computation on Multi Core Platforms written by 楊昌民 and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hard Real Time Computing Systems written by Giorgio C Buttazzo and published by Springer Science & Business Media. This book was released on 2011-09-10 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated edition offers an indispensable exposition on real-time computing, with particular emphasis on predictable scheduling algorithms. It introduces the fundamental concepts of real-time computing, demonstrates the most significant results in the field, and provides the essential methodologies for designing predictable computing systems used to support time-critical control applications. Along with an in-depth guide to the available approaches for the implementation and analysis of real-time applications, this revised edition contains a close examination of recent developments in real-time systems, including limited preemptive scheduling, resource reservation techniques, overload handling algorithms, and adaptive scheduling techniques. This volume serves as a fundamental advanced-level textbook. Each chapter provides basic concepts, which are followed by algorithms, illustrated with concrete examples, figures and tables. Exercises and solutions are provided to enhance self-study, making this an excellent reference for those interested in real-time computing for designing and/or developing predictable control applications.
Download or read book Information Technology New Generations written by Shahram Latifi and published by Springer. This book was released on 2016-03-28 with total page 1253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects articles presented at the 13th International Conference on Information Technology- New Generations, April, 2016, in Las Vegas, NV USA. It includes over 100 chapters on critical areas of IT including Web Technology, Communications, Security, and Data Mining.
Download or read book A Scheduling Analysis Framework for Predicting the Weakly Hard Real time Systems written by Habibah Ismail and published by . This book was released on 2013 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Holistic Schedulability Analysis for Distributed Hard Real time Systems written by Ken Tindell and published by . This book was released on 1993 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "This report extends the current analysis associated with static priority pre-emptive based scheduling to address the wider problem of analysing schedulability of a distributed hard real-time system; in particular it derives analysis for a distributed system where tasks with arbitrary deadlines communicate by message passing and shared data areas. A simple TDMA protocol is assumed, and analysis developed to bound not only the communications delays, but also the delays and overheads incurred when messages are processed by the protocol stack at the destination processor. The report illustrates how a window-based analysis technique can be used to find the worst-case response times of a distributed task set. An extended example illustrating the application of the analysis is presented."
Download or read book Formal Aspects of Component Software written by Ivan Lanese and published by Springer. This book was released on 2015-01-29 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes revised selected papers from the International Symposium on Formal Aspects of Component Software, FACS 2014, held in Bertinoro, Italy, in September 2014. The 20 full papers presented in this volume were carefully reviewed and selected from 44 submissions. They are organized in topical sections named: compositional approaches; adaptation and evolution; application and experience; tools; scheduling, time and hybrid systems; other verification approaches and safety and liveness of composition. The volume also contains two invited talks, one full paper and one abstract.
Download or read book Distributed Parallel and Biologically Inspired Systems written by Mike Hinchey and published by Springer. This book was released on 2010-08-06 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: st This volume contains the proceedings of two conferences held as part of the 21 IFIP World Computer Congress in Brisbane, Australia, 20–23 September 2010. th The first part of the book presents the proceedings of DIPES 2010, the 7 IFIP Conference on Distributed and Parallel Embedded Systems. The conference, int- duced in a separate preface by the Chairs, covers a range of topics from specification and design of embedded systems through to dependability and fault tolerance. rd The second part of the book contains the proceedings of BICC 2010, the 3 IFIP Conference on Biologically-Inspired Collaborative Computing. The conference is concerned with emerging techniques from research areas such as organic computing, autonomic computing and self-adaptive systems, where inspiraton for techniques - rives from exhibited behaviour in nature and biology. Such techniques require the use of research developed by the DIPES community in supporting collaboration over multiple systems. We hope that the combination of the two proceedings will add value for the reader and advance our related work.
Download or read book Multi Processor System on Chip 2 written by and published by John Wiley & Sons. This book was released on 2021-05-11 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Multi-Processor System-on-Chip (MPSoC) is the key component for complex applications. These applications put huge pressure on memory, communication devices and computing units. This book, presented in two volumes – Architectures and Applications – therefore celebrates the 20th anniversary of MPSoC, an interdisciplinary forum that focuses on multi-core and multi-processor hardware and software systems. It is this interdisciplinarity which has led to MPSoC bringing together experts in these fields from around the world, over the last two decades. Multi-Processor System-on-Chip 2 covers application-specific MPSoC design, including compilers and architecture exploration. This second volume describes optimization methods, tools to optimize and port specific applications on MPSoC architectures. Details on compilation, power consumption and wireless communication are also presented, as well as examples of modeling frameworks and CAD tools. Explanations of specific platforms for automotive and real-time computing are also included.
Download or read book Simulation and Modeling Methodologies Technologies and Applications written by Mohammad S. Obaidat and published by Springer. This book was released on 2014-10-21 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes extended and revised versions of a set of selected papers from the 3rd International Conference on Simulation and Modeling Methodologies, Technologies and Applications (SIMULTECH 2013) which was co-organized by the Reykjavik University (RU) and sponsored by the Institute for Systems and Technologies of Information, Control and Communication (INSTICC). SIMULTECH 2013 was held in cooperation with the ACM SIGSIM - Special Interest Group (SIG) on SImulation and Modeling (SIM), Movimento Italiano Modellazione e Simulazione (MIMOS) and AIS Special Interest Group on Modeling and Simulation (AIS SIGMAS) and technically co-sponsored by the Society for Modeling & Simulation International (SCS), Liophant Simulation, Simulation Team and International Federation for Information Processing (IFIP). This proceedings brings together researchers, engineers, applied mathematicians and practitioners working in the advances and applications in the field of system simulation.
Download or read book Model Based Design for Embedded Systems written by Gabriela Nicolescu and published by CRC Press. This book was released on 2018-09-03 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: The demands of increasingly complex embedded systems and associated performance computations have resulted in the development of heterogeneous computing architectures that often integrate several types of processors, analog and digital electronic components, and mechanical and optical components—all on a single chip. As a result, now the most prominent challenge for the design automation community is to efficiently plan for such heterogeneity and to fully exploit its capabilities. A compilation of work from internationally renowned authors, Model-Based Design for Embedded Systems elaborates on related practices and addresses the main facets of heterogeneous model-based design for embedded systems, including the current state of the art, important challenges, and the latest trends. Focusing on computational models as the core design artifact, this book presents the cutting-edge results that have helped establish model-based design and continue to expand its parameters. The book is organized into three sections: Real-Time and Performance Analysis in Heterogeneous Embedded Systems, Design Tools and Methodology for Multiprocessor System-on-Chip, and Design Tools and Methodology for Multidomain Embedded Systems. The respective contributors share their considerable expertise on the automation of design refinement and how to relate properties throughout this refinement while enabling analytic and synthetic qualities. They focus on multi-core methodological issues, real-time analysis, and modeling and validation, taking into account how optical, electronic, and mechanical components often interface. Model-based design is emerging as a solution to bridge the gap between the availability of computational capabilities and our inability to make full use of them yet. This approach enables teams to start the design process using a high-level model that is gradually refined through abstraction levels to ultimately yield a prototype. When executed well, model-based design encourages enhanced performance and quicker time to market for a product. Illustrating a broad and diverse spectrum of applications such as in the automotive aerospace, health care, consumer electronics, this volume provides designers with practical, readily adaptable modeling solutions for their own practice.
Download or read book Embedded Software Timing written by Peter Gliwa and published by Springer Nature. This book was released on 2021-02-09 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Without correct timing, there is no safe and reliable embedded software. This book shows how to consider timing early in the development process for embedded systems, how to solve acute timing problems, how to perform timing optimization, and how to address the aspect of timing verification. The book is organized in twelve chapters. The first three cover various basics of microprocessor technologies and the operating systems used therein. The next four chapters cover timing problems both in theory and practice, covering also various timing analysis techniques as well as special issues like multi- and many-core timing. Chapter 8 deals with aspects of timing optimization, followed by chapter 9 that highlights various methodological issues of the actual development process. Chapter 10 presents timing analysis in AUTOSAR in detail, while chapter 11 focuses on safety aspects and timing verification. Finally, chapter 12 provides an outlook on upcoming and future developments in software timing. The number of embedded systems that we encounter in everyday life is growing steadily. At the same time, the complexity of the software is constantly increasing. This book is mainly written for software developers and project leaders in industry. It is enriched by many practical examples mostly from the automotive domain, yet the vast majority of the book is relevant for any embedded software project. This way it is also well-suited as a textbook for academic courses with a strong practical emphasis, e.g. at applied sciences universities. Features and Benefits * Shows how to consider timing in the development process for embedded systems, how to solve timing problems, and how to address timing verification * Enriched by many practical examples mostly from the automotive domain * Mainly written for software developers and project leaders in industry
