Download or read book Speculation based Techniques for Transactional Lock free Execution of Lock based Programs written by Ravi Rajwar and published by . This book was released on 2002 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transactional Memory 2nd Edition written by Tim Harris and published by Morgan & Claypool Publishers. This book was released on 2010-10-10 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Transactional Memory Second Edition written by Tim Harris and published by Springer Nature. This book was released on 2022-05-31 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Shared Memory Synchronization written by Michael Lee Scott and published by Springer Nature. This book was released on 2024 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zusammenfassung: This book offers a comprehensive survey of shared-memory synchronization, with an emphasis on "systems-level" issues. It includes sufficient coverage of architectural details to understand correctness and performance on modern multicore machines, and sufficient coverage of higher-level issues to understand how synchronization is embedded in modern programming languages. The primary intended audience for this book is "systems programmers"--the authors of operating systems, library packages, language run-time systems, concurrent data structures, and server and utility programs. Much of the discussion should also be of interest to application programmers who want to make good use of the synchronization mechanisms available to them, and to computer architects who want to understand the ramifications of their design decisions on systems-level code
Download or read book Compiler Assisted Speculation for Multithreaded Systems written by Lingxiang Xiang and published by . This book was released on 2015 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Multithreaded programming requires synchronization, to coordinate access to shared resources. As more and more processor cores become available on a single machine, synchronization tends to be the performance bottleneck of many multithreaded programs. This thesis focuses on two important synchronization scenarios: lock-based critical sections and transactional atomic blocks. Since speculation is a well-known means of increasing parallelism among concurrent executions that are usually but not always independent, this thesis first explores the manual addition of speculation to lock-based critical sections (in concurrent data structures). With simple language extensions accompanied by compiler assistance, a technique which we refer to as CSpec, the programmer can exploit high-level program knowledge to move speculative work out of lock-based critical sections, thereby improving scalability while still maintaining correctness. Speculation is also a major approach to improved parallelism in transactional memory systems. Frequent failures of speculative execution, however, may render the technique unprofitable. In recently emerged best-effort hardware transactional memory, speculation fails mainly due to two reasons: hardware overflow and data conflicts. In this thesis we develop a programming technique and compiler support, ParT, to reduce the duration and memory footprint of hardware transactions, leading to lower abort rates while preserving deadlock-free composability. To reduce the incidence of conflict, we propose an automatic, high-level mechanism, Staggered Transactions, that uses advisory locks to serialize (just) the portions of the transactions in which conflicting accesses occur. In all proposed techniques, compiler assistance is essential to maintaining ease of programming. We thus conclude that compiler assistance can significantly improve speculation in multithreaded systems"--Pages vii-viii.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transactions on High Performance Embedded Architectures and Compilers IV written by Per Stenström and published by Springer. This book was released on 2011-11-15 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transactions on HiPEAC aims at the timely dissemination of research contributions in computer architecture and compilation methods for high-performance embedded computer systems. Recognizing the convergence of embedded and general-purpose computer systems, this journal publishes original research on systems targeted at specific computing tasks as well as systems with broad application bases. The scope of the journal therefore covers all aspects of computer architecture, code generation and compiler optimization methods of interest to researchers and practitioners designing future embedded systems. This 4th issue contains 21 papers carefully reviewed and selected out of numerous submissions and is divided in four sections. The first section contains five regular papers. The second section consists of the top four papers from the 4th International Conference on High-Performance Embedded Architectures and Compilers, HiPEAC 2009, held in Paphos, Cyprus, in January 2009. The third section contains a set of six papers providing a snap-shot from the Workshop on Software and Hardware Challenges of Manycore Platforms, SHCMP 2008 held in Beijing, China, in June 2008. The fourth section consists of six papers from the 8th IEEE International Symposium on Systems, Architectures, Modeling and Simulation, SAMOS VIII (2008) held in Samos, Greece, in July 2008.
Download or read book Token Coherence written by Milo M. K. Martin and published by . This book was released on 2003 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Art of Multiprocessor Programming written by Maurice Herlihy and published by Newnes. This book was released on 2020-09-08 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Art of Multiprocessor Programming, Second Edition, provides users with an authoritative guide to multicore programming. This updated edition introduces higher level software development skills relative to those needed for efficient single-core programming, and includes comprehensive coverage of the new principles, algorithms, and tools necessary for effective multiprocessor programming. The book is an ideal resource for students and professionals alike who will benefit from its thorough coverage of key multiprocessor programming issues. Features new exercises developed for instructors using the text, with more algorithms, new examples, and other updates throughout the book Presents the fundamentals of programming multiple threads for accessing shared memory Explores mainstream concurrent data structures and the key elements of their design, as well as synchronization techniques, from simple locks to transactional memory systems
Download or read book ACM SIGPLAN notices written by and published by . This book was released on 1991 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 2004 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Euro Par 2015 Parallel Processing written by Jesper Larsson Träff and published by Springer. This book was released on 2015-07-24 with total page 717 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 21st International Conference on Parallel and Distributed Computing, Euro-Par 2015, held in Vienna, Austria, in August 2015. The 51 revised full papers presented together with 2 invited papers were carefully reviewed and selected from 190 submissions. The papers are organized in the following topical sections: support tools and environments; performance modeling, prediction and evaluation; scheduling and load balancing; architecture and compilers; parallel and distributed data management; grid, cluster and cloud computing; distributed systems and algorithms; parallel and distributed programming, interfaces and languages; multi- and many-core programming; theory and algorithms for parallel computation; numerical methods and applications; and accelerator computing.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 2002 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Architecture of Computing Systems ARCS 2011 written by Mladen Berekovic and published by Springer Science & Business Media. This book was released on 2011-02-11 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 24th International Conference on Architecture of Computing Systems, ARCS 2011, held in Lake Como, Italy, in February 2011. The 22 revised full papers presented in seven technical sessions were carefully reviewed and selected from 62 submissions. The papers are organized in topical sections on customization and application specific accelerators; multi/many-core architectures; adaptive system architectures; processor architectures; memory architectures optimization; organic and autonomic computing; network-on-chip architectures.
Download or read book Detecting and Exploiting Causal Relationships in Hardware Shared memory Multiprocessors written by Harold W. Cain and published by . This book was released on 2004 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Main Memory Database Systems written by Frans Faerber and published by Foundations and Trends in Databases. This book was released on 2017-07-20 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: With growing memory sizes and memory prices dropping by a factor of 10 every 5 years, data having a "primary home" in memory is now a reality. Main-memory databases eschew many of the traditional architectural pillars of relational database systems that optimized for disk-resident data. The result of these memory-optimized designs are systems that feature several innovative approaches to fundamental issues (e.g., concurrency control, query processing) that achieve orders of magnitude performance improvements over traditional designs. This monograph provides an overview of recent developments in main-memory database systems. It covers five main issues and architectural choices that need to be made when building a high performance main-memory optimized database: data organization and storage, indexing, concurrency control, durability and recovery techniques, and query processing and compilation. The monograph focuses on four commercial and research systems: H-Store/VoltDB, Hekaton, HyPer, and SAPHANA. These systems are diverse in their design choices and form a representative sample of the state of the art in main-memory database systems. It also covers other commercial and academic systems, along with current and future research trends.
Download or read book Real World Multicore Embedded Systems written by Jim Holt and published by Elsevier Inc. Chapters. This book was released on 2013-02-27 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synchronization hardware is a fundamental requirement for concurrent software. Ultimately, software depends upon strong guarantees for atomicity, which can only be provided by hardware. Fortunately, hardware can provide a simple but powerful programming interface to higher-level software using only a few synchronization primitives. These few primitives can support a surprisingly broad range of capabilities in software. Yet, even with hardware support to ensure functional correctness, there is an unavoidable performance overhead to pay for synchronization. In recent years, hardware designed to replace precise locking with speculative lock avoidance (e.g., lock-free programming) has begun to emerge. This chapter provides an in-depth look at the lowest level hardware/software interface for synchronization, along with explanations of how the underlying hardware ensures atomicity, and considerations related to weakly consistent memory models. This is complemented with a discussion of various lock avoidance techniques.
