Download or read book Transactions in a Distributed Shared Memory System written by Dawn N. Jutla-Lewis and published by 1992.. This book was released on 1993 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transactional Distributed Shared Memory written by and published by . This book was released on 1992 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "Atomic transactions have proven to be an important technique for constructing reliable applications. Traditionally, transactions have been extended to distributed environments through the use of function shipping, a technique in which message passing or remote procedure calls are used to invoke computational requests on remote nodes. Recently, the data sharing approach to constructing distributed applications has received attention in the form of distributed file systems and distributed shared virtual memory. Applying the data sharing approach to transactions produces transactional distributed shared memory (TDSM) which yields benefits for a certain class of distributed application

Download or read book Principles of Transactional Memory written by Rachid Guerraoui and published by Springer Nature. This book was released on 2022-06-01 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book Principles of Transactional Memory written by Rachid Guerraoui and published by Morgan & Claypool Publishers. This book was released on 2010 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Fault tolerant transactions using distributed shared memory written by Ajay Mohindra and published by . This book was released on 1989 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distributed Shared Memory written by Jelica Protic and published by John Wiley & Sons. This book was released on 1997-08-10 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers present in this text survey both distributed shared memory (DSM) efforts and commercial DSM systems. The book discusses relevant issues that make the concept of DSM one of the most attractive approaches for building large-scale, high-performance multiprocessor systems. The authors provide a general introduction to the DSM field as well as a broad survey of the basic DSM concepts, mechanisms, design issues, and systems. The book concentrates on basic DSM algorithms, their enhancements, and their performance evaluation. In addition, it details implementations that employ DSM solutions at the software and the hardware level. This guide is a research and development reference that provides state-of-the art information that will be useful to architects, designers, and programmers of DSM systems.

Download or read book Integrating Transactions and Distributed Shared Memory for Distributed Programming written by Pedro Alexandre Guimarães Lobo Ferreira do Souto and published by . This book was released on 1999 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distributed Shared Memory Transaction Support written by Frank Ian Smith and published by . This book was released on 1992 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Tools and Techniques for Efficient Transactions written by Pavan Poudel and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A major challenge in modern multiprocessor computer programming is concurrency control: (i) how to coordinate accesses to memory locations shared among concurrently executing tasks and (ii) how to ensure that the computation is correct. The traditional approach is to use mutexes and locks but they have many drawbacks such as deadlocks. This dissertation explores the recently emerged paradigm of transactional memory for multiprocessor programming. In transactional memory, program code is split into transactions, blocks of code containing a sequence of read and write operations that appear to execute atomically to a set of shared resources. When transactions access the same shared resources at the same time, conflict occurs, and transactions may need to abort. A transaction commits if either no conflict occurs, or conflicts are resolved. Conflicts are typically resolved through a transaction scheduling algorithm. This dissertation explores transactional memory in the context of shared memory multiprocessor systems where concurrent tasks interact through reading and writing the same main memory as well as distributed multiprocessor systems where concurrent tasks interact by sending messages to each other. The main difference between shared memory and distributed systems is that there is non-uniformity in memory access latency in distributed systems, which is not the case in shared memory systems. This non-uniformity is vital and affects not only the total execution time of all concurrent tasks but also other related network parameters such as communication cost and congestion. For uniform latency, the focus is mainly on minimizing total execution time of all concurrent tasks. This dissertation develops several novel results in both shared memory and distributed multiprocessor systems. In shared memory systems, it develops a versioning method and a transaction scheduling mechanism. Specifically, it proposes an adaptive versioning method that switches between eager and lazy versioning methods during runtime, without knowing application characteristics a priori, so that the total execution time is always better than that is obtained applying eager and lazy versioning methods individually. This method is studied for both volatile and non-volatile shared memory systems. Additionally, an extensive experimental evaluation is performed using a state-of-the-art transactional memory system and benchmark suites and results are reported. In distributed systems, it develops a transaction scheduling method that provides an execution order of transactions minimizing total execution time and additionally related network parameter communication cost. It also develops an efficient and scalable execution framework, called GraphTM, for supporting TM in clusters and distributed systems. The proposed scheduling method is studied for (i) the data-flow execution model where transactions execute on the network node that issue them, but objects (memory) read/written by transactions move to the nodes those transactions are executing and (ii) the control-flow execution model where objects do not move but the transactions accessing the objects send requests to the node where objects are located to read/write that object. The time and communication bounds obtained are either optimal or near optimal for any offline, online, or dynamic arrival of transactions. Additionally, an extensive experimental evaluation is performed using state-of-the-art benchmark suites and results are reported.

Download or read book Transaction Synchronization in Distributed Shared Virtual Memory Systems written by Harvard University. Center for Research in Computing Technology and published by . This book was released on 1989 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: We compare the performance of the two algorithms using simulation, and argue that significant performance gain can potentially result from bypassing memory coherence and supporting process synchronization directly on distributed memory. We also study the role of the optimistic algorithms in the context of DSVM, and show that some optimistic policy appears promising under the scenarios studied."

Download or read book Transactions and Database Dynamics written by Gunter Saake and published by Springer. This book was released on 2003-06-26 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: These post-proceedings contain the revised versions of the accepted papers of the international workshop \Transactions and Database Dynamics", which was the eighth workshop in a series focusing on foundations of models and languages for data and objects (FoMLaDO). Seven long papers and three short papers were accepted for inclusion in the proceedings. The papers address various issues of transactions and database dynamics: { criteria and protocols for global snapshot isolation in federated transaction management, { uni ed theory of concurrency control and replication control, { speci cation of evolving information systems, { inheritance mechanisms for deductive object databases with updates, { speci cation of active rules for maintaining database consistency, { integrity checking in subtransactions, { open nested transactions for multi-tier architectures, { declarative speci cation of transactions with static and dynamic integrity constraints, { logic-based speci cation of update queries as open nested transactions, and { execution guarantees and transactional processes in electronic commerce payments. In addition to the regular papers, there are papers resulting from two working groups. The rst working group paper discusses the basis for transactional c- putation. In particular, it addresses the speci cation of transactional software. The second working group paper focuses on transactions in electronic commerce applications. Among others, Internet transactions, payment protocols, and c- currency control and persistence mechanisms are discussed. Moreover, there is an invited paper by Jari Veijalainen which discusses tr- sactional aspects in mobile electronic commerce.

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

Download or read book Mechanisms for Distributed Shared Memory written by Steven K. Reinhardt and published by . This book was released on 1996 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Parallel and Distributed Processing written by Jose Rolim and published by Springer Science & Business Media. This book was released on 1998-03-18 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of 10 international workshops held in conjunction with the merged 1998 IPPS/SPDP symposia, held in Orlando, Florida, US in March/April 1998. The volume comprises 118 revised full papers presenting cutting-edge research or work in progress. In accordance with the workshops covered, the papers are organized in topical sections on reconfigurable architectures, run-time systems for parallel programming, biologically inspired solutions to parallel processing problems, randomized parallel computing, solving combinatorial optimization problems in parallel, PC based networks of workstations, fault-tolerant parallel and distributed systems, formal methods for parallel programming, embedded HPC systems and applications, and parallel and distributed real-time systems.

Download or read book DISTRIBUTED OPERATING SYSTEMS written by PRADEEP K. SINHA and published by PHI Learning Pvt. Ltd.. This book was released on 1998-01-01 with total page 761 pages. Available in PDF, EPUB and Kindle. Book excerpt: The highly praised book in communications networking from IEEE Press, now available in the Eastern Economy Edition.This is a non-mathematical introduction to Distributed Operating Systems explaining the fundamental concepts and design principles of this emerging technology. As a textbook for students and as a self-study text for systems managers and software engineers, this book provides a concise and an informal introduction to the subject.

Download or read book Emphasizing Distributed Systems written by and published by Academic Press. This book was released on 2000-06-29 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the computer industry moves into the 21st century, the long-running Advances in Computers is ready to tackle the challenges of the new century with insightful articles on new technology, just as it has since 1960 in chronicling the advances in computer technology from the last century. As the longest-running continuing series on computers, Advances in Computers presents those technologies that will affect the industry in the years to come. In this volume, the 53rd in the series, we present 8 relevant topics. The first three represent a common theme on distributed computing systems -using more than one processor to allow for parallel execution, and hence completion of a complex computing task in a minimal amount of time. The other 5 chapters describe other relevant advances from the late 1990s with an emphasis on software development, topics of vital importance to developers today- process improvement, measurement and legal liabilities. - Longest running series on computers - Contains eight insightful chapters on new technology - Gives comprehensive treatment of distributed systems - Shows how to evaluate measurements - Details how to evaluate software process improvement models - Examines how to expand e-commerce on the Web - Discusses legal liabilities in developing software—a must-read for developers