Download or read book Reliability and Performance of Hierarchical Large scale Ring based SCI Shared memory Multiprocessors written by Mohammad Al-Rousan and published by . This book was released on 1996 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Performance of SCI Memory Hierarchies written by Roberto A. Hexsel and published by . This book was released on 1994 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance Evaluation of Hierarchical Reing based Shared Memory Multiprocessors written by M. A. Holliday and published by . This book was released on 1992 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Quantitative Performance Evaluation of SCI Memory Hierarchies written by Roberto A. Hexsel and published by . This book was released on 1994 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The simplest topology supported by SCI is the ring. It was found that, for the hardware and software simulated, the largest efficient ring size is between eight and sixteen nodes and that raw network bandwidth seen by processing elements is limited at about 80Mbytes/s. This is because the network saturates when link traffic reaches 600- 7000Mbytes/s. These levels of link traffic only occur for two poorly designed programs. The other four programs generate low traffic and their execution speed is not limited by interconnect nor cache coherence protocol. An analytical model of the multiprocessor is used to assess the cost of some frequently occurring cache coherence protocol operations. In order to build large systems, networks more sophisticated than rings must be used. The performance of SCI meshes and cubes is evaluated for systems of up to 64 nodes. As with rings, processor throughput is also limited by link traffic for the same two poorly designed programs

Download or read book Performance Issues in the Design of Hierarchical ring and Direct Networks for Shared memory Multiprocessors microform written by Govindan Ravindran and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1998 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1995 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toward the Design of Large scale Shared memory Multiprocessors written by Steven Scott and published by . This book was released on 1992 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance Study of Deflection Routing in Hierarchical Ring Networks for Shared Memory Multiprocessors written by Jian Huang and published by . This book was released on 1998 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reducing Memory Access Delays in Large scale Shared memory Multiprocessors written by University of Illinois at Urbana-Champaign. Center for Supercomputing Research and Development and published by . This book was released on 1992 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Memory access time is a key factor limiting the performance of large-scale, shared-memory multiprocessors. In such systems, limited bandwidth in the interconnection between the processors and the memories, coupled with long delays resulting from network and memory conflicts, can produce serious memory access delays. Incorporating memory hierarchies and asynchronous block transfer mechanisms are common methods for reducing these delays. However, for these two mechanisms to be wed advantageously, they must be managed effectively, either in hardware or in software. Although this memory management problem is becoming increasingly important, good techniques are still lacking. The problem of reducing memory access delays can be attacked at several levels. The first is to attempt to improve the performance of the shared-memory system itself, where the shared-memory system includes implicitly both the network and the memory modules themselves. The second is to develop techniques to manage the memory hierarchy more effectively and to make use of the block transfer mechanisms. This thesis addresses this problem at both of these levels. The first part examines the behavior of a realistic shared-memory system and evaluates cost-effective hardware modifications for improving this balance. An additional goal is to achieve memory system scalability, where the term scalable describes systems whose per-processor performance is roughly constant across the range of system sizes examined. The remainder of this thesis addresses the problem of improving utilization of local storage in shared-memory systems where, at the very least, each processor has access to local (private) storage in addition to the global (shared) memory. A combined flow-and-dependence analysis algorithm is developed which produces the analytical information needed to optimize data accesses. It is shown how this information can be used as part of an intergrated hardware/software approach to eliminating redundant (unnecessary) memory accesses and prefetching data.

Download or read book Multi ring Performance of the Kendall Square Multiprocessor written by and published by . This book was released on 1994 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Performance of the hierarchical shared-memory system of the Kendall Square Research multiprocessor is measured and characterized. The performance of prefetch is measured. Latency, bandwidth, and contention are analyzed on a 4-ring, 128 processor system. Scalability comparisons are made with other shared-memory and distributed-memory multiprocessors.

Download or read book Performance Bottlenecks on Large scale Shared memory Multiprocessors written by Robert C. Kunz and published by . This book was released on 2004 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scalable Shared Memory Multiprocessing written by Daniel E. Lenoski and published by Morgan Kaufmann. This book was released on 1995-06 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with a discussion of the fundamentals of scalable multiprocessors and the characteristics of large-scale parallel programs, the book then presents an in-depth presentation of the hardware design issues for this class of machine, and a survey of existing and proposed scalable shared-memory systems.

Download or read book Memory Hierarchy Management Schemes in Large Scale Shared memory Multiprocessors written by Sang Lyul Min and published by . This book was released on 1989 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: These super registers are shared by a proper subset of the processors to reduce the average access time of shared variables with known access patterns.

Download or read book Scalability of Atomic Primitives on Distributed Shared Memory Multiprocessors written by University of Rochester. Department of Computer Science and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "Many hardware primitives have been proposed for synchronization and atomic memory update on shared-memory multiprocessors. In this paper, we focus on general-purpose primitives that have proven popular on small-scale bus-based machines, but have yet to become widely available on large-scale, distributed-memory machines. Specifically, we propose several alternative implementations of fetcha̲nd[̲phi], comparea̲nds̲wap, and loadl̲inked/storec̲onditional. We then analyze the performance of these implementations for various data sharing patterns, in both real and synthetic applications. Our results indicate that good overall performance can be obtained by implementing comparea̲nds̲wap in a multiprocessor's cache controllers, and by providing an additional instruction to load an exclusive copy of a line."

Download or read book Design and Performance Evaluation of the Bidirectional Ring based Shared Memory Multiprocessor written by Hitoshi Oi and published by . This book was released on 2000 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evolution of an Operating System for Large scale Shared memory Multiprocessors written by Michael Lee Scott and published by . This book was released on 1989 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Psyche project is characterized by (1) a design that permits the implementation of multiple models of parallelism, both within and among applications, (2) the ability to trade protection for performance, with information sharing as the default, rather than the exception, (3) explicit, user-level control of process structure and scheduling, and (4) a kernel implementation that uses shared memory itself, and that provides users with the illusion of uniform memory access times.

Download or read book Applied Science and Technology Index written by and published by . This book was released on 1995 with total page 1756 pages. Available in PDF, EPUB and Kindle. Book excerpt: