Download or read book Memory Management for Large scale NUMA Multiprocessors written by T. J. LeBlanc and published by . This book was released on 1989 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "Large-scale shared-memory multiprocessors such as the BBN Butterfly and IBM RP3 introduce a new level in the memory hierarchy: multiple physical memories with different memory access times. An operating system for these NUMA (NonUniform Memory Access) multiprocessors should provide traditional virtual memory management, facilitate dynamic and widespread memory sharing, and minimize the apparent disparity between local and nonlocal memory. In addition, the implementation must be scalable to configurations with hundreds or thousands of processors. This paper describes memory management in the Psyche multiprocessor operating system, under development at the University of Rochester

Download or read book Evaluating Memory System Performance of a Large Scale NUMA Multiprocessor written by Karim Harzallah and published by . This book was released on 1993 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "The effectiveness of large scale computing depends to a great extent on the performance of the memory system. As shared memory multiprocessors grow in size, their memory hierarchy deepens, resulting in a design with non-uniform latencies. In this paper, we explore the implications of multi-valued memory latencies. In particular, we study the effect of a non-uniform traffic distribution on a hierarchical large scale NUMA multiprocessor named Hector. Memory analysis is of interest because memory is a frequent source of poor performance in large scale multiprocessors. We have developed an analytical model that includes the effects of increased contention for system resources, and the impact of the arbitration algorithm on the network traffic. Our analysis has been validated with a detailed simulator. Also, we have examined two techniques for reducing memory latency. We assess the potential performance gains from replication of data and investigate the improvement in memory utilization by allowing memory request buffering. Furthermore, we studied the sensitivity of the memory performance to changes in background traffic. We found that inter-station traffic has a significant performance effect."

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Region oriented Main Memory Management in Shared Memory NUMA Multiprocessors written by Benjamin Gamsa and published by . This book was released on 1992 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Efficient Memory Management and Interconnection Schemes for CC NUMA Multiprocessors written by Hu-Jun Wang and published by . This book was released on 2002 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Memory Management in Symunix II written by Jan Edler and published by Forgotten Books. This book was released on 2016-10-01 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Memory Management in Symunix II: A Design for Large-Scale Shared Memory Multiprocessors While various vendors and independent research groups have adapted unix and other operating systems for multiprocessor architectures, relatively little work has been done in anticipation of the software requirements of very large-scale shared memory machines containing thousands of processors. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Emergency Management written by Burak Eksioglu and published by BoD – Books on Demand. This book was released on 2012-01-27 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: After the large-scale disasters that we have witnessed in the recent past, it has become apparent that complex and coordinated emergency management systems are required for efficient and effective relief efforts. Such management systems can only be developed by involving many scientists and practitioners from multiple fields. Thus, this book on emergency management discusses various issues, such as the impact of human behavior, development of hardware and software architectures, cyber security concerns, dynamic process of guiding evacuees and routing vehicles, supply allocation, and vehicle routing problems in preparing for, and responding to large scale emergencies. The book is designed to be useful to students, researchers and engineers in all academic areas, but particularly for those in the fields of computer science, operations research, and human factor. We also hope that this book will become a useful reference for practitioners.

Download or read book Government Reports Annual Index written by and published by . This book was released on 1991 with total page 1332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Memory Management in Symunix II A Design for Large Scale Shared Memory Multiprocessors written by Jan Edler and published by Palala Press. This book was released on 2018-03-03 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book EURO PAR 95 Parallel Processing written by Seif Haridi and published by Springer Science & Business Media. This book was released on 1995 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the proceedings of the First International EURO-PAR Conference on Parallel Processing, held in Stockholm, Sweden in August 1995. EURO-PAR is the merger of the former PARLE and CONPAR-VAPP conference series; the aim of this merger is to create the premier annual scientific conference on parallel processing in Europe. The book presents 50 full revised research papers and 11 posters selected from a total of 196 submissions on the basis of 582 reviews. The scope of the contributions spans the full spectrum of parallel processing ranging from theory over design to application; thus the volume is a "must" for anybody interested in the scientific aspects of parallel processing or its advanced applications.

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 The Implementation of a Coherent Memory Abstraction on a NUMA Non Uniform Memory Access Multiprocessor Experiences with PLATINUM Platform for Investigating Non Uniform Memory Revision written by and published by . This book was released on 1989 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: PLATINUM is an operating system kernel with a novel memory management system for Non-uniform Memory Access (NUMA) multiprocessor architectures. This memory management system implements a coherent memory abstraction. Coherent memory is uniformly accessible from all processors in the system. When used by applications coded with appropriate programming styles it appears to be nearly as fast as local physical memory and it reduces memory contention. Coherent memory makes programming NUMA multiprocessors easier for the user while attaining a level of performance comparable with hand-tuned programs. This paper describes the design of the PLATINUM memory management system with emphasis on the implementation of coherent memory and the factors that affect its performance. We measure the cost of basic operations implementing coherent memory. We also measure the performance of a set of application programs running on PLATINUM. Finally, we comment on the interaction between architecture and the coherent memory system. Platinum currently runs on the BBN Butterfly Plys (TM) Multiprocessor. (KR).

Download or read book Memory Management in Symunix II a Design for Large scale Shared Memory Multiprocessors written by Jan Edler and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Reports Awareness Circular TRAC written by and published by . This book was released on 1989-12 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physical Database Design written by Sam S. Lightstone and published by Morgan Kaufmann. This book was released on 2010-07-26 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapidly increasing volume of information contained in relational databases places a strain on databases, performance, and maintainability: DBAs are under greater pressure than ever to optimize database structure for system performance and administration. Physical Database Design discusses the concept of how physical structures of databases affect performance, including specific examples, guidelines, and best and worst practices for a variety of DBMSs and configurations. Something as simple as improving the table index design has a profound impact on performance. Every form of relational database, such as Online Transaction Processing (OLTP), Enterprise Resource Management (ERP), Data Mining (DM), or Management Resource Planning (MRP), can be improved using the methods provided in the book. The first complete treatment on physical database design, written by the authors of the seminal, Database Modeling and Design: Logical Design, Fourth Edition Includes an introduction to the major concepts of physical database design as well as detailed examples, using methodologies and tools most popular for relational databases today: Oracle, DB2 (IBM), and SQL Server (Microsoft) Focuses on physical database design for exploiting B+tree indexing, clustered indexes, multidimensional clustering (MDC), range partitioning, shared nothing partitioning, shared disk data placement, materialized views, bitmap indexes, automated design tools, and more!

Download or read book UNIX Systems for Modern Architectures written by Curt Schimmel and published by Addison-Wesley Professional. This book was released on 1994 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Any UNIX programmer using the latest workstations or super minicomputers from vendors such as Sun, Silicon Graphics (SGI), ATandT, Amdahl, IBM, Apple, Compaq, Mentor Graphics, and Thinking Machines needs this book to optimize his/her job performance. This book teaches how these architectures operate using clear, comprehensible examples to explain the concepts, and provides a good reference for people already familiar with the basic concepts.

Download or read book Proceedings of the Fifteenth ACM Symposium on Operating Systems Principles written by and published by . This book was released on 1995 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: