A suite of hierarchical cache coherence protocols

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ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (195 download)

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Book Synopsis A suite of hierarchical cache coherence protocols by : Umakishore Ramachandran

Download or read book A suite of hierarchical cache coherence protocols written by Umakishore Ramachandran and published by . This book was released on 1988 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Structural Design and Proof of Hierarchical Cache-coherence Protocols

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ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Structural Design and Proof of Hierarchical Cache-coherence Protocols by : Joonwon Choi

Download or read book Structural Design and Proof of Hierarchical Cache-coherence Protocols written by Joonwon Choi and published by . This book was released on 2021 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cache-coherence protocols have been one of the greatest correctness challenges of the hardware world. A memory subsystem usually consists of several caches and the main memory, and a cache-coherence protocol defined in such a system allows multiple memory-access transactions to execute in a distributed manner, across the levels of a cache hierarchy. This source of concurrency is the most challenging part in formal verification of cache coherence. In this dissertation, we introduce Hemiola, a framework embedded in Coq to design, prove, and synthesize cache-coherence protocols in a structural way. The framework guides the user to design protocols that never experience inconsistent inter-leavings while handling transactions concurrently. Any protocol designed in Hemiola always satisfies the serializability property, allowing a user to prove the protocol assuming that transactions are executed one-at-a-time. The proof relies on conditions on the protocol topology and state-change rules, but we have designed a domainspecific protocol language that guides the user to design protocols that satisfy these properties by construction. The framework also provides a novel way to design and prove invariants by adding predicates to messages in the system, called predicate messages. On top of serializability, it is much simpler to prove a predicate message, since it is guaranteed that the predicate is not spuriously broken by other messages. We used Hemiola to design and prove hierarchical MSI and MESI protocols, in both inclusive and noninclusive variants, as case studies. We also demonstrated that the case-study protocols are indeed hardware-synthesizable, by using a compilation/ synthesis toolchain in the framework.

A Scalable Hierarchical Cache Coherence Protocol

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Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.:/5 (231 download)

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Book Synopsis A Scalable Hierarchical Cache Coherence Protocol by : Deborah Anne Wallach

Download or read book A Scalable Hierarchical Cache Coherence Protocol written by Deborah Anne Wallach and published by . This book was released on 1990 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Multi-level Hierarchical Cache Coherence Protocol for Multiprocessors

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ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (287 download)

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Book Synopsis A Multi-level Hierarchical Cache Coherence Protocol for Multiprocessors by : University of Washington. Dept. of Computer Science

Download or read book A Multi-level Hierarchical Cache Coherence Protocol for Multiprocessors written by University of Washington. Dept. of Computer Science and published by . This book was released on 1992 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finally, we conclude with some preliminary results, and some examples of how the protocol and architecture could be made more efficient."

Verification of Hierarchical Cache Coherence Protocols for Futuristic Processors

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ISBN 13 :
Total Pages : 284 pages
Book Rating : 4.:/5 (244 download)

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Book Synopsis Verification of Hierarchical Cache Coherence Protocols for Futuristic Processors by : Xiaofang Chen (computer engineer.)

Download or read book Verification of Hierarchical Cache Coherence Protocols for Futuristic Processors written by Xiaofang Chen (computer engineer.) and published by . This book was released on 2008 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Multi-Core Cache Hierarchies

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Publisher : Morgan & Claypool Publishers
ISBN 13 : 1598297546
Total Pages : 155 pages
Book Rating : 4.5/5 (982 download)

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Book Synopsis Multi-Core Cache Hierarchies by : Rajeev Balasubramonian

Download or read book Multi-Core Cache Hierarchies written by Rajeev Balasubramonian and published by Morgan & Claypool Publishers. This book was released on 2011-06-06 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: A key determinant of overall system performance and power dissipation is the cache hierarchy since access to off-chip memory consumes many more cycles and energy than on-chip accesses. In addition, multi-core processors are expected to place ever higher bandwidth demands on the memory system. All these issues make it important to avoid off-chip memory access by improving the efficiency of the on-chip cache. Future multi-core processors will have many large cache banks connected by a network and shared by many cores. Hence, many important problems must be solved: cache resources must be allocated across many cores, data must be placed in cache banks that are near the accessing core, and the most important data must be identified for retention. Finally, difficulties in scaling existing technologies require adapting to and exploiting new technology constraints. The book attempts a synthesis of recent cache research that has focused on innovations for multi-core processors. It is an excellent starting point for early-stage graduate students, researchers, and practitioners who wish to understand the landscape of recent cache research. The book is suitable as a reference for advanced computer architecture classes as well as for experienced researchers and VLSI engineers. Table of Contents: Basic Elements of Large Cache Design / Organizing Data in CMP Last Level Caches / Policies Impacting Cache Hit Rates / Interconnection Networks within Large Caches / Technology / Concluding Remarks

A Primer on Memory Consistency and Cache Coherence

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Publisher : Morgan & Claypool Publishers
ISBN 13 : 1608455653
Total Pages : 214 pages
Book Rating : 4.6/5 (84 download)

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Book Synopsis A Primer on Memory Consistency and Cache Coherence by : Daniel Sorin

Download or read book A Primer on Memory Consistency and Cache Coherence written by Daniel Sorin and published by Morgan & Claypool Publishers. This book was released on 2011-03-02 with total page 214 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

A Scalable Cache Coherence Protocol for a Hierarchical Bus-based Multiprocessor

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ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.:/5 (251 download)

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Book Synopsis A Scalable Cache Coherence Protocol for a Hierarchical Bus-based Multiprocessor by : Wuucheng Huang

Download or read book A Scalable Cache Coherence Protocol for a Hierarchical Bus-based Multiprocessor written by Wuucheng Huang and published by . This book was released on 1990 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Scalable New Cache Coherence Protocol for Hierarchical Distributed Shared Memory

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ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (258 download)

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Book Synopsis A Scalable New Cache Coherence Protocol for Hierarchical Distributed Shared Memory by : Phanindra K. Mannava

Download or read book A Scalable New Cache Coherence Protocol for Hierarchical Distributed Shared Memory written by Phanindra K. Mannava and published by . This book was released on 1994 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Design and Evaluation of Cache Coherence Protocols in Multiprocessors with Deflection Hierarchical Slotted-ring Networks

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ISBN 13 :
Total Pages : 188 pages
Book Rating : 4.:/5 (459 download)

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Book Synopsis Design and Evaluation of Cache Coherence Protocols in Multiprocessors with Deflection Hierarchical Slotted-ring Networks by : Tong Wu

Download or read book Design and Evaluation of Cache Coherence Protocols in Multiprocessors with Deflection Hierarchical Slotted-ring Networks written by Tong Wu and published by . This book was released on 2000 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Cache-coherence Problem in Shared-memory Multiprocessors

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Publisher : Institute of Electrical & Electronics Engineers(IEEE)
ISBN 13 :
Total Pages : 454 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis The Cache-coherence Problem in Shared-memory Multiprocessors by : Milo Tomašević

Download or read book The Cache-coherence Problem in Shared-memory Multiprocessors written by Milo Tomašević and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1993 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: A tutorial on the nature of the cache coherence problem and the wide variety of proposed hardware solutions currently available. A number of the most important papers in this field are included within seven sections: introductory issues; memory reference characteristics of parallel programs; directo

Automatic Generation of Highly Concurrent, Hierarchical and Heterogeneous Cache Coherence Protocols from Atomic Specifications

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Automatic Generation of Highly Concurrent, Hierarchical and Heterogeneous Cache Coherence Protocols from Atomic Specifications by : Nicolai Alexander Oswald

Download or read book Automatic Generation of Highly Concurrent, Hierarchical and Heterogeneous Cache Coherence Protocols from Atomic Specifications written by Nicolai Alexander Oswald and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Productive Design of Extensible On-Chip Memory Hierarchies

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ISBN 13 :
Total Pages : 153 pages
Book Rating : 4.:/5 (957 download)

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Book Synopsis Productive Design of Extensible On-Chip Memory Hierarchies by : Henry Cook Cook

Download or read book Productive Design of Extensible On-Chip Memory Hierarchies written by Henry Cook Cook and published by . This book was released on 2016 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: As Moore's Law slows and process scaling yields only small returns, computer architecture and design are poised to undergo a renaissance. This thesis brings the productivity of modern software tools to bear on the design of future energy-efficient hardware architectures. In particular, it targets one of the most difficult design tasks in the hardware domain: Coherent hierarchies of on-chip caches. I have extended the capabilities of Chisel, a new hardware description language, by providing libraries for hardware developers to use to describe the configuration and behavior of such memory hierarchies, with a focus on the cache coherence protocols that work behind the scenes to preserve their abstraction of global shared memory. I discuss how the methods I provide enable productive and extensible memory hierarchy design by separating the concerns of different hierarchy components, and I explain how this forms the basis for a generative approach to agile hardware design. This thesis describes a general framework for context-dependent parameterization of any hardware generator, defines a specific set of Chisel libraries for generating extensible cache-coherent memory hierarchies, and provides a methodology for decomposing high-level descriptions of cache coherence protocols into controller-localized, object-oriented transactions. This methodology has been used to generate the memory hierarchies of a lineage of RISC-V chips fabricated as part of the ASPIRE Lab's investigations into application-specific processor design.

Directory Based Ring-order Cache Coherence Protocol for Many-core Chip Mulitprocessors

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ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.:/5 (841 download)

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Book Synopsis Directory Based Ring-order Cache Coherence Protocol for Many-core Chip Mulitprocessors by : Anup Narayan Kulkarni

Download or read book Directory Based Ring-order Cache Coherence Protocol for Many-core Chip Mulitprocessors written by Anup Narayan Kulkarni and published by . This book was released on 2009 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The success of the current trend of aggressively scaling shared-cache Chip Multi Processors (CMP) depends critically on the ability of hardware cache coherence proto¬cols to support the scaling of processing cores while providing low latency service time for cache misses. Recent research has identified the ring to be a good candidate for on-chip interconnect that supports the scaling of processor cores. An associated ring-order snoop based protocol was proposed for the ring interconnect. However, in general, snoop based protocols do not scale well for a large number of processing cores. In this thesis, we propose a variation of the ring-the hierarchical ring for shared cache CMP's. Addi¬tionally, we develop a new directory based cache coherence protocol that exploits the ring's natural round-robin order while delivering good performance in terms of reduced latency for cache misses by exploiting the shorter routes possible with the hierarchical ring. We present simulation results comparing the performance of the ring-order snoop based protocol on the hierarchical ring against our protocol using a set of synthetic benchmarks. On an average the proposed protocol has 25% lower latency than the snoop based ring-order protocol for a 128 core processor with private LI caches and a logically shared but physically distributed L2 cache.

Implementation of a Two-level Hierarchical Cache Coherency Protocol in a Multi-bus Multiprocessors System

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ISBN 13 :
Total Pages : 190 pages
Book Rating : 4.:/5 (39 download)

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Book Synopsis Implementation of a Two-level Hierarchical Cache Coherency Protocol in a Multi-bus Multiprocessors System by : Mohammed M. Razzaque

Download or read book Implementation of a Two-level Hierarchical Cache Coherency Protocol in a Multi-bus Multiprocessors System written by Mohammed M. Razzaque and published by . This book was released on 1997 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Cache Coherence Techniques for Multicore Processors

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Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Cache Coherence Techniques for Multicore Processors by : Michael R. Marty

Download or read book Cache Coherence Techniques for Multicore Processors written by Michael R. Marty and published by . This book was released on 2008 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Primer on Memory Consistency and Cache Coherence

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Publisher : Morgan & Claypool Publishers
ISBN 13 : 1681737108
Total Pages : 296 pages
Book Rating : 4.6/5 (817 download)

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Book Synopsis A Primer on Memory Consistency and Cache Coherence by : Vijay Nagarajan

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.