Download or read book Embedded Multiprocessors written by Sundararajan Sriram and published by CRC Press. This book was released on 2018-10-03 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques for Optimizing Multiprocessor Implementations of Signal Processing Applications An indispensable component of the information age, signal processing is embedded in a variety of consumer devices, including cell phones and digital television, as well as in communication infrastructure, such as media servers and cellular base stations. Multiple programmable processors, along with custom hardware running in parallel, are needed to achieve the computation throughput required of such applications. Reviews important research in key areas related to the multiprocessor implementation of multimedia systems Embedded Multiprocessors: Scheduling and Synchronization, Second Edition presents architectures and design methodologies for parallel systems in embedded digital signal processing (DSP) applications. It discusses application modeling techniques for multimedia systems, the incorporation of interprocessor communication costs into multiprocessor scheduling decisions, and a modeling methodology (the synchronization graph) for multiprocessor system performance analysis. The book also applies the synchronization graph model to develop hardware and software optimizations that can significantly reduce the interprocessor communication overhead of a given schedule. Chronicles recent activity dealing with single-chip multiprocessors and dataflow models This edition updates the background material on existing embedded multiprocessors, including single-chip multiprocessors. It also summarizes the new research on dataflow models for signal processing that has been carried out since the publication of the first edition. Harness the power of multiprocessors This book explores the optimization of interprocessor communication and synchronization in embedded multiprocessor systems. It shows you how to design multiprocessor computer systems that are streamlined for multimedia applications.

Download or read book On Synchronization and Scheduling for Multiprocessors written by Virabrahma Prasad Krothapalli and published by . This book was released on 1990 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Task Scheduling and Synchronization for Multiprocessor Real time Systems written by Hongyi Zhou and published by . This book was released on 1992 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 The Art of Multiprocessor Programming Revised Reprint written by Maurice Herlihy and published by Elsevier. This book was released on 2012-06-25 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revised and updated with improvements conceived in parallel programming courses, The Art of Multiprocessor Programming is an authoritative guide to multicore programming. It introduces a higher level set of software development skills than that needed for efficient single-core programming. This book provides comprehensive coverage of the new principles, algorithms, and tools necessary for effective multiprocessor programming. Students and professionals alike will benefit from thorough coverage of key multiprocessor programming issues. This revised edition incorporates much-demanded updates throughout the book, based on feedback and corrections reported from classrooms since 2008 Learn the fundamentals of programming multiple threads accessing shared memory Explore mainstream concurrent data structures and the key elements of their design, as well as synchronization techniques from simple locks to transactional memory systems Visit the companion site and download source code, example Java programs, and materials to support and enhance the learning experience

Download or read book Issues in Multiprogrammed Multiprocessor Scheduling written by Scott T. Leutenegger and published by . This book was released on 1990 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Minimizing spin-waiting is achieved by coscheduling processes within a job, or by using a thread management package that avoids preemption of processes that hold spinlocks.) We also find that allocation of processing power among competing jobs is a more important characteristic of a scheduling policy than preemption frequency for a wide range of preemption overhead values. Our studies are done by simulating abstract models of the system and the workloads."

Download or read book Energy aware Scheduling on Multiprocessor Platforms written by Dawei Li and published by Springer Science & Business Media. This book was released on 2012-10-19 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiprocessor platforms play important roles in modern computing systems, and appear in various applications, ranging from energy-limited hand-held devices to large data centers. As the performance requirements increase, energy-consumption in these systems also increases significantly. Dynamic Voltage and Frequency Scaling (DVFS), which allows processors to dynamically adjust the supply voltage and the clock frequency to operate on different power/energy levels, is considered an effective way to achieve the goal of energy-saving. This book surveys existing works that have been on energy-aware task scheduling on DVFS multiprocessor platforms. Energy-aware scheduling problems are intrinsically optimization problems, the formulations of which greatly depend on the platform and task models under consideration. Thus, Energy-aware Scheduling on Multiprocessor Platforms covers current research on this topic and classifies existing works according to two key standards, namely, homogeneity/heterogeneity of multiprocessor platforms and the task types considered. Under this classification, other sub-issues are also included, such as, slack reclamation, fixed/dynamic priority scheduling, partition-based/global scheduling, and application-specific power consumption, etc.

Download or read book Minimizing Communication and Synchronization Overhead in Multiprocessors for Digital Signal Processing written by Sundararajan Sriram and published by . This book was released on 1995 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scheduling and Synchronization for Multi core Real time Systems written by Karthik Singaram Lakshmanan and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Self scheduling Data Synchronization and Program Transformation for Multiprocessor Systems written by Peiyi Tang and published by . This book was released on 1989 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: The limitation of vector supercomputing and of device speed has led to the development of multiprocessor supercomputers. Although large tightly-coupled shared-memory multiprocessor systems have become feasible, such systems cannot be considered successful, unless their numerous processors can coordinate with each other efficiently for a wide range of applications. Advanced software techniques and their supports from system architectures are keys to the success of modern multiprocessor supercomputers. This dissertation first concentrates on two important software issues for large multiprocessor systems: processor scheduling and data synchronization. Self-scheduling, an efficient dynamic heuristic scheduling, is a practical solution to the scheduling problem of multiprocessor systems. We propose several self-scheduling schemes which can be used by a compiler to generate self-scheduling object codes for parallel programs. Since busy-waiting is used to enforce cross-iteration data dependences, deadlocks in self-scheduling are possible. We identify the conditions that allow deadlock-free self-scheduling for different self-scheduling models and propose the use of an appropriate scheduling order for allocating processors to prevent deadlocks. Self-scheduling order also has significant impact on the performance of parallel loops with cross-iteration data dependences. We propose the shortest-delay self-scheduling (SDSS) order based on Doacross delays determined by cross-iteration data dependences. We show by simulation that SDSS can offer near-optimal performance in most cases. A compile-time program transformation for SDSS is also presented. Data synchronization is necessary to enforce cross-iteration data data dependences. We propose a set of data-level synchronization instructions to support data synchronization. Compiler algorithms for generating these data-level synchronization instructions for different types of subscript functions are presented. The last part of the dissertation addresses an architecture issue of large multiprocessor systems: "hot-spot" contention. We suggest the use of software combining to distribute "hot-spot" addressings. A number of software combining algorithms for different access patterns, such as barrier synchronization, fetch-and-add type of operations and semaphore P/V operations, are presented.

Download or read book Operating Systems written by Remzi H. Arpaci-Dusseau and published by Createspace Independent Publishing Platform. This book was released on 2018-09 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book is organized around three concepts fundamental to OS construction: virtualization (of CPU and memory), concurrency (locks and condition variables), and persistence (disks, RAIDS, and file systems"--Back cover.

Download or read book Handbook of Real Time Computing written by Yu-Chu Tian and published by Springer Nature. This book was released on 2022-08-08 with total page 1511 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this handbook is to summarize the recent rapidly developed real-time computing technologies, from theories to applications. This handbook benefits the readers as a full and quick technical reference with a high-level historic review of technology, detailed technical descriptions and the latest practical applications. In general, the handbook is divided into three main parts (subjected to be modified): theory, design, and application covering different but not limited to the following topics: - Real-time operating systems - Real-time scheduling - Timing analysis - Programming languages and run-time systems - Middleware systems - Design and analysis tools - Real-time aspects of wireless sensor networks - Energy aware real-time methods

Download or read book Efficient and Robust Dynamic Scheduling and Synchronization in Practical Embedded Real time Multiprocessor Systems written by Martin Alfranseder 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 Scheduler Conscious Synchronization written by University of Rochester. Dept. of Computer Science and published by . This book was released on 1994 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "Efficient synchronization is important for achieving good performance in parallel programs, especially on large-scale multiprocessors. Most synchronization algorithms have been designed to run on a dedicated machine, with one application process per processor, and can suffer serious performance degradation in the presence of multiprogramming. Problems arise when running processes block or, worse, busy-wait for action on the part of a process that the scheduler has chosen not to run. In this paper we describe and evaluate a set of scheduler- conscious synchronization algorithms that perform well in the presence of multiprogramming while maintaining good performance on dedicated machines. We consider both large and small machines, with a particular focus on scalability, and examine mutual-exclusion locks, reader-writer locks, and barriers. The algorithms we study fall into two classes: those that heuristically determine appropriate behavior and those that use scheduler information to guide their behavior. We show that while in some cases either method is sufficient, in general sharing information across the kernel-user interface both eases the design of synchronization algorithms and improves their performance."

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

Download or read book Scheduler Conscious Synchronization written by University of Rochester. Department of Computer Science and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "Efficient synchronization is important for achieving good performance in parallel programs, especially on large-scale multiprocessors. Most synchronization algorithms have been designed to run on a dedicated machine, with one application process per processor, and can suffer serious performance degradation in the presence of multiprogramming. Problems arise when running processes block or, worse, busy-wait for action on the part of a process that the scheduler has chosen not to run. In this paper we describe and evaluate a set of scheduler- conscious synchronization algorithms that perform well in the presence of multiprogramming while maintaining good performance on dedicated machines. We consider both large and small machines, with a particular focus on scalability, and examine mutual-exclusion locks, reader-writer locks, and barriers. The algorithms we study fall into two classes: those that heuristically determine appropriate behavior and those that use scheduler information to guide their behavior. We show that while in some cases either method is sufficient, in general sharing information across the kernel-user interface both eases the design of synchronization algorithms and improves their performance."

Download or read book Parallel Algorithms for Irregularly Structured Problems written by Afonso Ferreira and published by Springer Science & Business Media. This book was released on 1995-08-25 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings -- Parallel Computing.