Download or read book Programmer Friendly and Efficient Distributed Shared Memory Integrated Into a Distributed Operating System written by J. Silcock and published by . This book was released on 1998 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distributed shared memory (DSM) provides programmers with a shared memory environment in systems where memory is not physically shared. The DSM system proposed and built in this research satisfies a set of demanding design requirements. Quantitative results of performance tests and qualitative results showing the ease of programming and use of the RHODOS DSM system are reported.

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 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 Languages Compilers and Run time Environments for Distributed Memory Machines written by J. Saltz and published by Elsevier. This book was released on 2014-06-28 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers presented within this volume cover a wide range of topics related to programming distributed memory machines. Distributed memory architectures, although having the potential to supply the very high levels of performance required to support future computing needs, present awkward programming problems. The major issue is to design methods which enable compilers to generate efficient distributed memory programs from relatively machine independent program specifications. This book is the compilation of papers describing a wide range of research efforts aimed at easing the task of programming distributed memory machines.

Download or read book Programming with distributed shared memory written by Umakishore Ramachandran and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Virtual Shared Memory for Distributed Architectures written by Eva Kühn and published by Nova Publishers. This book was released on 2001 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Virtual Shared Memory for Distributed Architecture

Download or read book High performance All software Distributed Shared Memory written by Kirk Lauritz Johnson and published by . This book was released on 1996 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "The C Region Library (CRL) is a new all-software distributed shared memory (DSM) system. CRL requires no special compiler, hardware, or operating system support beyond the ability to send and receive messages between processing nodes. It provides a simple, portable, region-based shared address space programming model that is capable of delivering good performance on a wide range of multiprocessor and distributed system architectures. Each region is an arbitrarily sized, contiguous area of memory. The programmer defines regions and delimits accesses to them using annotations. CRL implementations have been developed for two platforms: the Thinking Machines CM-5, a commercial multicomputer, and the MIT Alewife machine, an experimental multiprocessor offering efficient hardware support for both message passing and shared memory. Results are presented for up to 128 processors on the CM-5 and up to 32 processors on Alewife. Using Alewife as a vehicle, this thesis presents results from the first completely controlled comparison of scalable hardware and software DSM systems. These results indicate that CRL is capable of delivering performance that is competitive with hardware DSM systems: CRL achieves speedups within 15% of those provided by Alewife's native hardware-supported shared memory, even for challenging applications (e.g., Barnes-Hut) and small problem sizes. A second set of experimental results provides insight into the sensitivity of CRL's performance to increased communication costs (both higher latency and lower bandwidth). These results demonstrate that even for relatively challenging applications, CRL should be capable of delivering reasonable performance on current-generation distributed systems. Taken together, these results indicate the substantial promise of CRL and other all- software approaches to providing shared memory functionality and suggest that in many cases special-purpose hardware support for shared memory may not be necessary."

Download or read book Efficient Implementation of Software Release Consistency on Asymmetric Distributed Shared Memory written by Tōkyō Daigaku. Dept. of Information Science and published by . This book was released on 1997 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "The shared memory system can reduce the cost of programming effort in the distributed memory systems. On distributed systems such as networks of computers, it is necessary to provide the shared memory model by software. We have proposed an 'Asymmetric Distributed Shared Memory: ADSM', that provides high-speed-update distributed memory access by software. The compiler for the ADSM translates the code reading to shared memory into a single load instruction and translates the code writing to shared memory into a sequence of instructions, which means instructions managing consistency are separated from the store instruction. The instructions managing consistency are explicitly inserted after the store instruction. According to this property, we can perform various optimizations: (1) We can reduce the number of instructions managing consistency. (2)We can select any protocol per page. We have implemented prototypes of the compiler and the runtime system for the ADSM on a multicomputer Fujitsu AP1000+. We use 3 of the SPLASH-2 kernel benchmarks. We evaluate the effectiveness of the optimization on the ADSM scheme by preliminary experiments."

Download or read book An Efficient Shared Memory Layer for Distributed Memory Machines written by Stanford University. Computer Systems Laboratory and published by . This book was released on 1994 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes a system called SAM that simplifies the task of programming machines with distributed address spaces by providing a shared name space and dynamic caching of remotely accessed data. SAM makes it possible to utilize the computational power available in networks of workstations and distributed memory machines, while getting the ease of programming associated with a single address space model. The global name space and caching are especially important for complex scientific applications with irregular communication and parallelism.

Download or read book Concurrent Crash Prone Shared Memory Systems written by Michel Raynal and published by Morgan & Claypool Publishers. This book was released on 2022-03-22 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theory is what remains true when technology is changing. So, it is important to know and master the basic concepts and the theoretical tools that underlie the design of the systems we are using today and the systems we will use tomorrow. This means that, given a computing model, we need to know what can be done and what cannot be done in that model. Considering systems built on top of an asynchronous read/write shared memory prone to process crashes, this monograph presents and develops the fundamental notions that are universal constructions, consensus numbers, distributed recursivity, power of the BG simulation, and what can be done when one has to cope with process anonymity and/or memory anonymity. Numerous distributed algorithms are presented, the aim of which is being to help the reader better understand the power and the subtleties of the notions that are presented. In addition, the reader can appreciate the simplicity and beauty of some of these algorithms.

Download or read book Programming Distributed Memory Architectures Using Kali written by Piyush Mehrotra and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "Programming nonshared memory systems is more difficult than programming shared memory systems, in part because of the relatively low level of current programming environments for such machines. This paper presents a new programming environment, Kali, which provides a global name space and allows direct access to remote data values. In order to retain efficiency, Kali provides a system of annotations, allowing the user to control those aspects of the program critical to performance, such as data distribution and load balancing. This paper describes the primitives and constructs provided by our language, and also discusses some of the issues raised in translating a Kali program for execution on distributed memory systems."

Download or read book Techniques to Improve the Performance of Software based Distributed Shared Memory Systems written by Churngwei Chu and published by . This book was released on 1998 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Proceedings of the 1993 International Conference on Parallel Processing written by C.Y. Roger Chen and published by CRC Press. This book was released on 1993-08-16 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This three-volume work presents a compendium of current and seminal papers on parallel/distributed processing offered at the 22nd International Conference on Parallel Processing, held August 16-20, 1993 in Chicago, Illinois. Topics include processor architectures; mapping algorithms to parallel systems, performance evaluations; fault diagnosis, recovery, and tolerance; cube networks; portable software; synchronization; compilers; hypercube computing; and image processing and graphics. Computer professionals in parallel processing, distributed systems, and software engineering will find this book essential to their complete computer reference library.

Download or read book Implementing and Programming Causal Distributed Shared Memory written by Mustaque Ahamad and published by . This book was released on 1990 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Comparison of Distributed Memory and Virtual Shared Memory Parallel Programming Models written by and published by . This book was released on 1993 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The virtues of the different parallel programming models, shared memory and distributed memory, have been much debated. Conventionally the debate could be reduced to programming convenience on the one hand, and high salability factors on the other. More recently the debate has become somewhat blurred with the provision of virtual shared memory models built on machines with physically distributed memory. The intention of such models/machines is to provide scalable shared memory, i.e. to provide both programmer convenience and high salability. In this paper, the different models are considered from experiences gained with a number of system ranging from applications in both commerce and science to languages and operating systems. Case studies are introduced as appropriate.

Download or read book Consistent Distributed Storage written by Vincent Gramoli and published by Springer Nature. This book was released on 2022-05-31 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing a shared memory abstraction in distributed systems is a powerful tool that can simplify the design and implementation of software systems for networked platforms. This enables the system designers to work with abstract readable and writable objects without the need to deal with the complexity and dynamism of the underlying platform. The key property of shared memory implementations is the consistency guarantee that it provides under concurrent access to the shared objects. The most intuitive memory consistency model is atomicity because of its equivalence with a memory system where accesses occur serially, one at a time. Emulations of shared atomic memory in distributed systems is an active area of research and development. The problem proves to be challenging, and especially so in distributed message passing settings with unreliable components, as is often the case in networked systems. We present several approaches to implementing shared memory services with the help of replication on top of message-passing distributed platforms subject to a variety of perturbations in the computing medium.