Programming With Transactional Memory
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Transactional Memory
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Author : Tim Harris
language : en
Publisher: Morgan & Claypool Publishers
Release Date : 2010
Transactional Memory written by Tim Harris and has been published by Morgan & Claypool Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Computers categories.
The advent of multicore processors has renewed interest in the idea of incorporating transactions into the programming model used to write parallel programs.This approach, known as transactional memory, offers an alternative, and hopefully better, way to coordinate concurrent threads. The ACI (atomicity, consistency, isolation) properties of transactions provide a foundation to ensure that concurrent reads and writes of shared data do not produce inconsistent or incorrect results. At a higher level, a computation wrapped in a transaction executes atomically - either it completes successfully and commits its result in its entirety or it aborts. In addition, isolation ensures the transaction produces the same result as if no other transactions were executing concurrently. Although transactions are not a parallel programming panacea, they shift much of the burden of synchronizing and coordinating parallel computations from a programmer to a compiler, to a language runtime system, or to hardware. The challenge for the system implementers is to build an efficient transactional memory infrastructure. This book presents an overview of the state of the art in the design and implementation of transactional memory systems, as of early spring 2010.
Principles Of Transactional Memory
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Author : Rachid Guerraoui
language : en
Publisher: Morgan & Claypool Publishers
Release Date : 2010
Principles Of Transactional Memory written by Rachid Guerraoui and has been published by Morgan & Claypool Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Computers categories.
Transactional memory (TM) is an appealing paradigm for concurrent programming on shared memory architectures. With a TM, threads of an application communicate, and synchronize their actions, via in-memory transactions. Transactions are atomic: programmers get the illusion that every transaction executes all its operations instantaneously, at some single and unique point in time. The aim of this book is to provide theoretical foundations for transactional memory.
Transactional Memory Second Edition
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Author : Tim Harris
language : en
Publisher: Springer
Release Date : 2010-06-02
Transactional Memory Second Edition written by Tim Harris and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-06-02 with Technology & Engineering categories.
The advent of multicore processors has renewed interest in the idea of incorporating transactions into the programming model used to write parallel programs. This approach, known as transactional memory, offers an alternative, and hopefully better, way to coordinate concurrent threads. The ACI (atomicity, consistency, isolation) properties of transactions provide a foundation to ensure that concurrent reads and writes of shared data do not produce inconsistent or incorrect results. At a higher level, a computation wrapped in a transaction executes atomically - either it completes successfully and commits its result in its entirety or it aborts. In addition, isolation ensures the transaction produces the same result as if no other transactions were executing concurrently. Although transactions are not a parallel programming panacea, they shift much of the burden of synchronizing and coordinating parallel computations from a programmer to a compiler, to a language runtime system, or to hardware. The challenge for the system implementers is to build an efficient transactional memory infrastructure. This book presents an overview of the state of the art in the design and implementation of transactional memory systems, as of early spring 2010. Table of Contents: Introduction / Basic Transactions / Building on Basic Transactions / Software Transactional Memory / Hardware-Supported Transactional Memory / Conclusions
Transactional Memory Foundations Algorithms Tools And Applications
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Author : Rachid Guerraoui
language : en
Publisher: Springer
Release Date : 2014-12-29
Transactional Memory Foundations Algorithms Tools And Applications written by Rachid Guerraoui and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-29 with Computers categories.
The advent of multi-core architectures and cloud-computing has brought parallel programming into the mainstream of software development. Unfortunately, writing scalable parallel programs using traditional lock-based synchronization primitives is well known to be a hard, time consuming and error-prone task, mastered by only a minority of specialized programmers. Building on the familiar abstraction of atomic transactions, Transactional Memory (TM) promises to free programmers from the complexity of conventional synchronization schemes, simplifying the development and verification of concurrent programs, enhancing code reliability, and boosting productivity. Over the last decade TM has been subject to intense research on a broad range of aspects including hardware and operating systems support, language integration, as well as algorithms and theoretical foundations. On the industrial side, the major players of the software and hardware markets have been up-front in the research and development of prototypal products providing support for TM systems. This has recently led to the introduction of hardware TM implementations on mainstream commercial microprocessors and to the integration of TM support for the world’s leading open source compiler. In such a vast inter-disciplinary domain, the Euro-TM COST Action (IC1001) has served as a catalyzer and a bridge for the various research communities looking at disparate, yet subtly interconnected, aspects of TM. This book emerged from the idea having Euro-TM experts compile recent results in the TM area in a single and consistent volume. Contributions have been carefully selected and revised to provide a broad coverage of several fundamental issues associated with the design and implementation of TM systems, including their theoretical underpinnings and algorithmic foundations, programming language integration and verification tools, hardware supports, distributed TM systems, self-tuning mechanisms, as well as lessons learnt from building complex TM-based applications.
Programming With Transactional Memory
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Author : Brian David Carlstrom
language : en
Publisher:
Release Date : 2008
Programming With Transactional Memory written by Brian David Carlstrom and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Principles Of Transactional Memory
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Author : Rachid Guerraoui
language : en
Publisher: Springer
Release Date : 2010-09-24
Principles Of Transactional Memory written by Rachid Guerraoui and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-24 with Computers categories.
Transactional memory (TM) is an appealing paradigm for concurrent programming on shared memory architectures. With a TM, threads of an application communicate, and synchronize their actions, via in-memory transactions. Each transaction can perform any number of operations on shared data, and then either commit or abort. When the transaction commits, the effects of all its operations become immediately visible to other transactions; when it aborts, however, those effects are entirely discarded. Transactions are atomic: programmers get the illusion that every transaction executes all its operations instantaneously, at some single and unique point in time. Yet, a TM runs transactions concurrently to leverage the parallelism offered by modern processors. The aim of this book is to provide theoretical foundations for transactional memory. This includes defining a model of a TM, as well as answering precisely when a TM implementation is correct, what kind of properties it can ensure, what are the power and limitations of a TM, and what inherent trade-offs are involved in designing a TM algorithm. While the focus of this book is on the fundamental principles, its goal is to capture the common intuition behind the semantics of TMs and the properties of existing TM implementations. Table of Contents: Introduction / Shared Memory Systems / Transactional Memory: A Primer / TM Correctness Issues / Implementing a TM / Further Reading / Opacity / Proving Opacity: An Example / Opacity vs.\ Atomicity / Further Reading / The Liveness of a TM / Lock-Based TMs / Obstruction-Free TMs / General Liveness of TMs / Further Reading / Conclusions
Software Transactional Memory In A Dynamic Programming Language At Virtual Machine Level
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Author :
language : en
Publisher:
Release Date : 2014
Software Transactional Memory In A Dynamic Programming Language At Virtual Machine Level written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
A Study Of Hybrid Transactional Memory
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Author : Fu'ad W. F. Al Tabba'
language : en
Publisher:
Release Date : 2011
A Study Of Hybrid Transactional Memory written by Fu'ad W. F. Al Tabba' and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Cache memory categories.
The rise of multicore processors is driving programmers towards parallel programming. Traditional lock-based parallel programming, however, breaks abstraction, hinders composition, and is further complicated by issues such as deadlock, priority inversion, and lack of scalability. Transactional memory, a promising programming model inspired by database transactions, is gaining popularity as a way to overcome the drawbacks of lock-based programming and make it easier to write parallel programs. Different methods have been proposed for supporting transactional memory. Hardware proposals, which modify a processor's existing hardware to support transactions, are either too complex, or cannot handle all types of workload. Software proposals, which do not require any hardware support beyond what is already present for parallel programming, are too slow. This thesis argues that transactional memory should be supported by a hybrid combination of hardware and software. By combining the two, transactional memory can offer the best of both hardware and software. To support this argument, this thesis presents my work on transactional memory, which spans the areas of hardware, software, and hybrid support. This thesis presents NZSTM, the first nonblocking, object-based, software transactional memory that does not require indirection to access data in the common case. It also presents NZTM, a hybrid transactional memory that uses NZSTM as its software component. The evaluation presented shows that nonblocking support introduces little overhead compared with blocking algorithms, and that NZTM is competitive with pure hardware transactional memory. Furthermore, this thesis investigates how to improve the performance of hardware transactional memory by using data speculation in transactions, and how to reduce transactional conflicts by decoupling them from cache coherence conflicts. Most hardware proposals do not distinguish between transactional conflicts and coherence conflicts, leading to false transactional conflicts. This thesis explains how to mitigate the effects of coherence conflicts by using value prediction in transactions. It also shows that coherence decoupling and value prediction in transactions complement each other, because they both speculate on data in ways that are infeasible in the absence of hardware transactional memory support.
Improving Performance Of Transactional Applications Through Adaptive Transactional Memory
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Author : Thireshan Jeyakumaran
language : en
Publisher:
Release Date : 2015
Improving Performance Of Transactional Applications Through Adaptive Transactional Memory written by Thireshan Jeyakumaran and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
With the rise of chip multiprocessors (CMPs), it is necessary to use parallel programming to exploit computational power of CMPs. Traditionally, lock-based mechanisms have been used to synchronize shared variables in parallel programs. However, with the complexity associated with locks, writing a correct parallel program is a huge burden for programmers. As an alternative, Transactional Memory (TM) is gaining momentum as a parallel programming model for multi---core processors. TM provides programmers with an atomic construct (transaction), which can be used to guarantee atomicity of accesses to shared variables, as the synchronization is handled through the underlying system. Transactional memory comes in two variants: Software transaction memory (STM) and Hardware transaction memory (HTM). Both STM and HTM systems have advantages and disadvantages that either enhance or penalize performance in transactional applications. In this thesis, the focus is on implementing an adaptive system that exploits both STM and HTM at transaction granularity. The goal is to achieve performance gain by incorporating the benefits of both TM systems. A synchronization technique is developed to seamlessly switch between HTM and STM based on the characteristics of a transaction. We exploit decision tree to predict the optimum system for each transaction in a given application. The decision tree is a form of supervised machine learning to classify transactions based on parameters such as transaction size, transaction write ratio, etc. From the evaluations using STAMP, NAS, and DiscoPoP benchmark suites, the proposed adaptive system is able to improve speed of transactional applications by 20.82% on average.
Architectures For Transactional Memory
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Author : Austen McDonald
language : en
Publisher:
Release Date : 2009
Architectures For Transactional Memory written by Austen McDonald and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.