Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Synchronization With Multiprocessor Caches full books in PDF, epub, and Kindle. Read online Synchronization With Multiprocessor Caches ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Joonwon Lee
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (211 download)
Download or read book Synchronization with multiprocessor caches written by Joonwon Lee and published by . This book was released on 1989 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Krishna Kumar
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (11 download)
Download or read book Visible Synchronization Based Cache Coherence written by Krishna Kumar and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In large scale machines, thousands of processor cycles, in other words, missed opportunities to issue floating point instructions, may be lost while waiting for a high latency synchronization or memory operation to complete, or a stall in an instruction pipeline to be dealt with. Latency is avoided by bringing data to a nearby locale for future reference (e.g., caching) while latency is tolerated by overlapping data movement with something useful. The issue of cache coherence arises whenever there are multiple copies of a shared datum in different caches of a shared-memory multiprocessor system. It is in order to maintain consistency between these multiple copies that cache coherence protocols are employed. The efficiency of latency avoidance methods is largely dependent upon the minimization of coherence traffic in the coherence protocol used to maintain cache coherency. Cache coherence protocols in general can be divided into two classes: hardware implemented ones and compiler implemented ones. Hardware implemented ones lead to large coherence traffic, and large state storage space. Conventional compiler implemented ones involve indiscriminate wasteful invalidation. There is also redundancy between synchronization operations and coherence operations. We seek to eliminate both weaknesses, by letting visible synchronization directly coordinate changes in the writability of shared data. We propose to add scalable compiler managed caches to a TERA-like multithreaded multiprocessor architecture, with user/compiler knowledge (i.e., alias analysis, dependence analysis and user directives) used to eliminate essentially all coherence traffic. To preserve scalability, we aim to use latency tolerance methods like switch-on-every-cycle multithreading, and augment this with simple, low-latency cache coherence protocols such as our visible synchronization based one.
Author : Igor Tartalja
Publisher : Wiley-IEEE Computer Society Press
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Cache Coherence Problem in Shared-Memory Multiprocessors written by Igor Tartalja and published by Wiley-IEEE Computer Society Press. This book was released on 1996-02-13 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book illustrates state-of-the-art software solutions for cache coherence maintenance in shared-memory multiprocessors. It begins with a brief overview of the cache coherence problem and introduces software solutions to the problem. The text defines and details static and dynamic software schemes, techniques for modeling performance evaluation mechanisms, and performance evaluation studies.
Author : Michel Dubois
Publisher : Springer Science & Business Media
ISBN 13 : 1461536049
Total Pages : 326 pages
Book Rating : 4.4/5 (615 download)
Download or read book Scalable Shared Memory Multiprocessors written by Michel Dubois and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The workshop on Scalable Shared Memory Multiprocessors took place on May 26 and 27 1990 at the Stouffer Madison Hotel in Seattle, Washington as a prelude to the 1990 International Symposium on Computer Architecture. About 100 participants listened for two days to the presentations of 22 invited The motivation for this workshop was to speakers, from academia and industry. promote the free exchange of ideas among researchers working on shared-memory multiprocessor architectures. There was ample opportunity to argue with speakers, and certainly participants did not refrain a bit from doing so. Clearly, the problem of scalability in shared-memory multiprocessors is still a wide-open question. We were even unable to agree on a definition of "scalability". Authors had more than six months to prepare their manuscript, and therefore the papers included in this proceedings are refinements of the speakers' presentations, based on the criticisms received at the workshop. As a result, 17 authors contributed to these proceedings. We wish to thank them for their diligence and care. The contributions in these proceedings can be partitioned into four categories 1. Access Order and Synchronization 2. Performance 3. Cache Protocols and Architectures 4. Distributed Shared Memory Particular topics on which new ideas and results are presented in these proceedings include: efficient schemes for combining networks, formal specification of shared memory models, correctness of trace-driven simulations,synchronization, various coherence protocols, .
Author : K. Ghose
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (897 download)
Download or read book Routing, Synchronization and Cache Coherence in a Distributed Shared Memory Multiprocessor Using WDM Optical Interconnections written by K. Ghose and published by . This book was released on 1992 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michel Dubois
Publisher : Springer Science & Business Media
ISBN 13 : 1461315379
Total Pages : 286 pages
Book Rating : 4.4/5 (613 download)
Download or read book Cache and Interconnect Architectures in Multiprocessors written by Michel Dubois and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cache And Interconnect Architectures In Multiprocessors Eilat, Israel May 25-261989 Michel Dubois UniversityofSouthernCalifornia Shreekant S. Thakkar SequentComputerSystems The aim of the workshop was to bring together researchers working on cache coherence protocols for shared-memory multiprocessors with various interconnect architectures. Shared-memory multiprocessors have become viable systems for many applications. Bus based shared-memory systems (Eg. Sequent's Symmetry, Encore's Multimax) are currently limited to 32 processors. The fIrst goal of the workshop was to learn about the performance ofapplications on current cache-based systems. The second goal was to learn about new network architectures and protocols for future scalable systems. These protocols and interconnects would allow shared-memory architectures to scale beyond current imitations. The workshop had 20 speakers who talked about their current research. The discussions were lively and cordial enough to keep the participants away from the wonderful sand and sun for two days. The participants got to know each other well and were able to share their thoughts in an informal manner. The workshop was organized into several sessions. The summary of each session is described below. This book presents revisions of some of the papers presented at the workshop.
Author : Quan Minh Nguyen (S.M.)
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (965 download)
Download or read book Synchronization in Timestamp-based Cache Coherence Protocols written by Quan Minh Nguyen (S.M.) and published by . This book was released on 2016 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supporting computationally demanding workloads into the future requires that multiprocessor systems support hundreds or thousands of cores. A cache coherence protocol manages the memory cached by these many cores, but the storage overhead required by existing directory-based protocols to track coherence state scales poorly as the number of cores increases. The Tardis cache coherence protocol uses timestamps to avoid these scalability problems. We build a cycle-level multicore simulator that implements a version of the Tardis protocol that uses release consistency. Changing the coherence protocol, which affects what memory values a processor can observe, changes inter-processor communication and synchronization, two processes crucial to the operation of a multicore system. We construct Tardis versions of synchronization primitives and the atomic instructions they use, and compare them to their analogous implementations on a directory-based cache coherent multicore system. Simulations on several benchmarks suggest that the Tardis system performs just as well as the baseline system while preserving the ability to scale systems to hundreds or thousands of cores.
Author : Jian Li
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.E/5 ( download)
Download or read book Energy-aware Synchronization in Shared-memory Multiprocessors written by Jian Li and published by . This book was released on 2004 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Daniel J. Sorin
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1608455645
Total Pages : 215 pages
Book Rating : 4.6/5 (84 download)
Download or read book A Primer on Memory Consistency and Cache Coherence written by Daniel J. Sorin and published by Morgan & Claypool Publishers. This book was released on 2011 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many modern computer systems and most multicore chips (chip multiprocessors) support shared memory in hardware. In a shared memory system, each of the processor cores may read and write to a single shared address space. For a shared memory machine, the memory consistency model defines the architecturally visible behavior of its memory system. Consistency definitions provide rules about loads and stores (or memory reads and writes) and how they act upon memory. As part of supporting a memory consistency model, many machines also provide cache coherence protocols that ensure that multiple cached copies of data are kept up-to-date. The goal of this primer is to provide readers with a basic understanding of consistency and coherence. This understanding includes both the issues that must be solved as well as a variety of solutions. We present both highlevel concepts as well as specific, concrete examples from real-world systems. Table of Contents: Preface / Introduction to Consistency and Coherence / Coherence Basics / Memory Consistency Motivation and Sequential Consistency / Total Store Order and the x86 Memory Model / Relaxed Memory Consistency / Coherence Protocols / Snooping Coherence Protocols / Directory Coherence Protocols / Advanced Topics in Coherence / Author Biographies
Author : Wayne Berke
Publisher : Franklin Classics Trade Press
ISBN 13 : 9780353178717
Total Pages : 24 pages
Book Rating : 4.1/5 (787 download)
Download or read book A Cache Technique for Synchronization Variables in Highly Parallel, Shared Memory Systems written by Wayne Berke and published by Franklin Classics Trade Press. This book was released on 2018-11-10 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author : University of Wisconsin--Madison. Computer Sciences Dept
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (193 download)
Download or read book Efficient Synchronization Primitives for Large-scale Cache-coherent Multiprocessors written by University of Wisconsin--Madison. Computer Sciences Dept and published by . This book was released on 1989 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Josep Torrellas
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (832 download)
Download or read book Characterizing the Cache Performance and Synchronization Behavior of a Multiprocessor Operating System written by Josep Torrellas and published by . This book was released on 1992 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vijay Nagarajan
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1681737108
Total Pages : 296 pages
Book Rating : 4.6/5 (817 download)
Download or read book A Primer on Memory Consistency and Cache Coherence written by Vijay Nagarajan and published by Morgan & Claypool Publishers. This book was released on 2020-02-04 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many modern computer systems, including homogeneous and heterogeneous architectures, support shared memory in hardware. In a shared memory system, each of the processor cores may read and write to a single shared address space. For a shared memory machine, the memory consistency model defines the architecturally visible behavior of its memory system. Consistency definitions provide rules about loads and stores (or memory reads and writes) and how they act upon memory. As part of supporting a memory consistency model, many machines also provide cache coherence protocols that ensure that multiple cached copies of data are kept up-to-date. The goal of this primer is to provide readers with a basic understanding of consistency and coherence. This understanding includes both the issues that must be solved as well as a variety of solutions. We present both high-level concepts as well as specific, concrete examples from real-world systems. This second edition reflects a decade of advancements since the first edition and includes, among other more modest changes, two new chapters: one on consistency and coherence for non-CPU accelerators (with a focus on GPUs) and one that points to formal work and tools on consistency and coherence.
Author : J. Torrellas
Publisher :
ISBN 13 :
Total Pages : 322 pages
Book Rating : 4.F/5 ( download)
Download or read book Multiprocessor Cache Memory Performance written by J. Torrellas and published by . This book was released on 1992 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Deog-Kyoon Jeong
Publisher :
ISBN 13 :
Total Pages : 304 pages
Book Rating : 4.:/5 (7 download)
Download or read book Clocking and Synchronization Circuits in Multiprocessor Systems written by Deog-Kyoon Jeong and published by . This book was released on 1989 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microprocessors based on RISC (Reduced Instruction Set Computer) concepts have demonstrated an ability to provide more computing power at a given level of integration than conventional microprocessors. The next step is multiprocessors is critic al in achieving efficient hardware utilization. This thesis focuses on the communication capability of VLSI circuits and presents new circuit techniques as a guide to build an interconnection network of VLSI microprocessors. Two of the most prominent problems in a synchronous system, which most of the current computer systems are based on, have been clock skew and synchronization failure. A new concept called self-timed systems solves such problems but has not been accepted i n microprocessor implementations yet because of its complex design procedure and increased overhead. With this in mind, this thesis concentrated on a system in which individual synchronous subsystems are connected asynchronously. Synchronous subsystems op erate with a better control over clock skew using a phase locked loop (PLL) technique. Communication among subsystems is done asynchronously with a controlled synchronization failure rate. One advantage is that conventional VLSI design methodologies which are more efficient can still be applied. Circuit techniques for PLL-based clock generation are described along with stability criteria. The main objective of the circuit is to realize a zero delay buffer. Experimental results show the feasability of such circuits in VLSI. Synchronizer circuit co nfigurations in both bipolar and MOS technology that best utilize each device, or overcome the technology limit using a bandwidth doubling technique are shown. Interface techniques including handshake mechanisms in such a system are also described. These techniques are applied in designing a memory management unit and cache controller (MMU/CC) for a multiprocessor workstation, SPUR. A SPUR workstation is an example of synchronous subsystems cluster with independent clock frequency. The interface and communication aspect of the overall system are revealed through the description of the MMU/CC. The VLSI chip is implemented in 1.6 um CMOS technology with 68,000 transistors.
Author : A. Agarwal
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (23 download)
Download or read book Adaptive Backoff Synchronization Techniques written by A. Agarwal and published by . This book was released on 1989 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stanford University. Computer Systems Laboratory
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (123 download)
Download or read book Update-based Cache Coherence Protocols for Scalable Shared-memory Multiprocessors written by Stanford University. Computer Systems Laboratory and published by . This book was released on 1993 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, two hardware-controlled update-based cache coherence protocols are presented. The paper discusses the two major disadvantages of the update protocols: inefficiency of updates and the mismatch between the granularity of synchronization and the data transfer. The paper presents two enhancements to the update-based protocols, a write combining scheme and a finer grain synchronization, to overcome these disadvantages. The results demonstrate the effectiveness of these enhancements that, when used together, allow the update-based protocols to significantly improve the execution time of a set of scientific applications when compared to three invalidate-based protocols.
