A Primer on Memory Consistency and Cache Coherence, Second Edition / by Vijay Nagarajan, Daniel J. Sorin, Mark D. Hill, David A. Wood.

Format:

Book

Author/Creator:

Nagarajan, Vijay, Author.

Sorin, Daniel J., Author.

Hill, Mark D., Author.

Wood, David A., Author.

Series:

Synthesis Lectures on Computer Architecture, 1935-3243

Language:

English

Subjects (All):

Electronic circuits.

Microprocessors.

Computer architecture.

Electronic Circuits and Systems.

Processor Architectures.

Local Subjects:

Electronic Circuits and Systems.

Processor Architectures.

Physical Description:

1 online resource (XX, 276 p.)

Edition:

2nd ed. 2020.

Place of Publication:

Cham : Springer International Publishing : Imprint: Springer, 2020.

Summary:

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.

Contents:

Preface to the Second Edition

Preface to the First Edition

Introduction to Consistency and Coherence

Coherence Basics

Memory Consistency Motivation and Sequential Consistency

Total Store Order and the \lowercase {X

Relaxed Memory Consistency

Coherence Protocols

Snooping Coherence Protocols

Directory Coherence Protocols

Advanced Topics in Coherence

Consistency and Coherence for Heterogeneous Systems

Specifying and Validating Memory Consistency Models and Cache Coherence

Authors' Biographies .

ISBN:

9783031017643

3031017641