The Cray X MP Model 24

This book examines the issues relevant to the design of vector and pipelined computer systems using the Cray X-MP/24.

The Cray X MP Model 24

Author: Kay A. Robbins

Publisher: Springer

ISBN: 9780387970899

Page: 172

View: 713

This book examines the issues relevant to the design of vector and pipelined computer systems using the Cray X-MP/24. The purpose of the book is to help the readers arrive at a deep understanding of how vector processing systems really work. These insights will be useful to the scientist who would like to obtain maximum performance from a vector machine, to the computer science student, and to the compiler writer. The book can also be used to supplement a regular textbook in a graduate or senior level course in computer architecture. The book looks at the overall design of the Cray X-MP and then explores the operation of the machine by looking at detailed timings of various instructions and code segments. It examines such issues as instruction issues and buffering, handling of jump instructions, use of registers to hold intermediate results, memory conflicts resulting from vectorization, optimal vectorization of multiple statement loops, and synchronization problems with multi-tasking. Detailed Gantt charts are provided to guide the reader through the timing issues.

Computer Arithmetic

The Cray X - MP / Model 24 consists of two identical CPUs sharing a main
memory and an I / O subsystem . Most instructions can begin execution in a
single 9.5 - ns machine cycle and are capable of producing results on every
machine cycle ...

Computer Arithmetic

Author: Behrooz Parhami

Publisher: Oxford University Press, USA

ISBN:

Page: 641

View: 463

Ideal for graduate and senior undergraduate courses in computer arithmetic and advanced digital design, Computer Arithmetic: Algorithms and Hardware Designs, Second Edition, provides a balanced, comprehensive treatment of computer arithmetic. It covers topics in arithmetic unit design and circuit implementation that complement the architectural and algorithmic speedup techniques used in high-performance computer architecture and parallel processing. Using a unified and consistent framework, the text begins with number representation and proceeds through basic arithmetic operations, floating-point arithmetic, and function evaluation methods. Later chapters cover broad design and implementation topics-including techniques for high-throughput, low-power, fault-tolerant, and reconfigurable arithmetic. An appendix provides a historical view of the field and speculates on its future. An indispensable resource for instruction, professional development, and research, Computer Arithmetic: Algorithms and Hardware Designs, Second Edition, combines broad coverage of the underlying theories of computer arithmetic with numerous examples of practical designs, worked-out examples, and a large collection of meaningful problems. This second edition includes a new chapter on reconfigurable arithmetic, in order to address the fact that arithmetic functions are increasingly being implemented on field-programmable gate arrays (FPGAs) and FPGA-like configurable devices. Updated and thoroughly revised, the book offers new and expanded coverage of saturating adders and multipliers, truncated multipliers, fused multiply-add units, overlapped quotient digit selection, bipartite and multipartite tables, reversible logic, dot notation, modular arithmetic, Montgomery modular reduction, division by constants, IEEE floating-point standard formats, and interval arithmetic. Features: * Divided into 28 lecture-size chapters * Emphasizes both the underlying theories of computer arithmetic and actual hardware designs * Carefully links computer arithmetic to other subfields of computer engineering * Includes 717 end-of-chapter problems ranging in complexity from simple exercises to mini-projects * Incorporates many examples of practical designs * Uses consistent standardized notation throughout * Instructor's manual includes solutions to text problems * An author-maintained website http://www.ece.ucsb.edu/~parhami/text_comp_arit.htm contains instructor resources, including complete lecture slides

Computer Architecture

CRAY X - MP Computer Systems Functional Description Manual . Publication
Number HR - 3005 . ... The Cray X - MP / Model 24 : a case study in pipelined
architecture and vector processing . Lecture Notes in Computer Science 374 ,
New ...

Computer Architecture

Author: Robert J. Baron

Publisher: Addison-Wesley

ISBN:

Page: 402

View: 618

Bibliographic Guide to Computer Science

Title : COS table descriptions internal reference manual . III . Series : Publication /
Cray Research , Inc . , no . SM - 0045 . STAN ( QA76 . 76 . 063 C7 1987 ] The
Cray X - MP / Model 24 . Robbins , Kay A . Berlin , New York , c1989 . vi , 165 p .

Bibliographic Guide to Computer Science

Author:

Publisher:

ISBN:

Page:

View: 195

High Performance Computing II

What can be said about the Cray Y - MP ? Lost cycles are nearly completely
avoided by internal parallelism of ... K . A . Robbins , Steven Robbins , The CRAY
X - MP / Model 24 , Springer , Berlin , 1989 . 4 . G . Hofemann , Vergleich der ...

High Performance Computing  II

Author: M. Durand

Publisher: Elsevier Science Limited

ISBN:

Page: 673

View: 827

This book is the second from this series of biennial symposia. The volume is intended as a forum for specialists working in various domains associated with Intensive Computing (Parallelism, Vectorization and Scalar), to discuss the state of the art. During the last decade, there has been sustained growth of scientific computing devices: expanding size of memories, incredible CPU performance unheard of just a few years ago, graphic tools transforming results treatment, networks drastically reducing communication time between computers, etc. It seems of prime necessity for the hardware designer to take into consideration the multiple and often conflicting needs of the scientific computing community, and for users to steadily devote time to update their knowledge of computing environments. Therefore, the main purpose of this volume is to give scientists an opportunity to investigate interactively areas such as Architecture of Supercomputers, Compilers, Algorithms, Computational Methods, Numerical Applications, and others.

Conference Proceedings

... XMP/Model 24, Springer, Berlin, 1989. 10.G. I-Iofemann, Vergleich der
Speicherarchitektuen der Mehrprozessor-Vektorrechner CRAY X-MP und CRAY
Y-MP anhand vektorisierender Algorithmen, Jiil-Spez-555, Forschungszentrum
Jtilich, ...

Conference Proceedings

Author:

Publisher:

ISBN:

Page:

View: 465

Groundwater Contamination Use of Models in Decision Making

Proceedings of the International Conference on Groundwater Contamination:
Use of Models in Decision-Making, Amsterdam, The ... Using a time step of 20
days, the model required only a few minutes CPU time on a Cray X-MP/24
computer.

Groundwater Contamination  Use of Models in Decision Making

Author: G. Jousma

Publisher: Springer Science & Business Media

ISBN: 9400923015

Page: 656

View: 723

The protection of groundwater resources has emerged in recent years as a high priority topic on the agenda of many countries. In responding to the growing concern over deteriorating groundwater quality, many countries are developing a comprehensive regulatory framework for the management of subsurface water resources with management referring to both quantity and quality aspects. Within this framework, groundwater models are rapidly coming to playa central role in the development of protection and rehabilitation strategies. These models provide forecasts of the future state of the groundwater aquifer systems and/or the unsaturated zone in response to proposed management initiatives. For example, models will predict the effects of implementing a proposed management scheme on water levels and on the transport and fate of pollutants. The models are now used in the formulation of policies and regulations, the issuing of permits, design of monitoring and data collection systems, and the development of enforcement actions. The growth in the use of these sophisticated tools has led to many unforeseen problems in groundwater management. Lingering issues include reliability of codes, quality assurance in model development and applications, efficient utiliza tion of human and material resources, technology transfer and training. Some issues have legal ramifications, as in cases where the applications of models have been contested in courts.

Computational Techniques and Applications CTAC 89

The company ' s hardware design efforts proceed down two distinct paths ,
currently represented in the CRAY Y - MP and the ... X - mode uses the
instruction set of the earlier CRAY X - MP models which uses 24 - bit addressing
so X - mode ...

Computational Techniques and Applications  CTAC 89

Author: William L. Hogarth

Publisher: Taylor & Francis

ISBN:

Page: 755

View: 592

The main lectures delivered at the conference covered such topics as inverse problems in industry, the application of computer-intensive statistical methods in earth sciences and the conjugate gradient method in earth sciences. 90 research papers were also presented.

Science and Engineering on Cray Supercomputers

The model is about 30 , 000 elements , mostly 8 - noded solid brick elements plus
a mixture of rod , membrane , bending and shear panel elements . Table 1 .
Model Creation Timings in Minutes VAX 8600 Cray X - MP / 24 Model Creation
CPU ...

Science and Engineering on Cray Supercomputers

Author:

Publisher:

ISBN:

Page: 643

View: 925

Proceedings -- Parallel Computing.

Design and implementation of large spatial databases

X. 389 pages. 1989. Vol. 353: S. Holldobler, Foundations of Equational Logic
Programming. X, 250 pages 1989. (Subsenes ... Branching Time and Partial
Order in Logics and Models for Concurrency. ... S. Robbins, The Cray X-MP/
Model 24.

Design and implementation of large spatial databases

Author: Alex Buchmann

Publisher: Springer

ISBN:

Page: 364

View: 150

This textbook is for graduate students and research workers in social statistics and related subject areas. It follows a novel curriculum developed around the basic statistical activities: sampling, measurement and inference.

Parliamentary Debates

As far as I know , while the US has offered X - MP - 14 , our Government asked
the latest set of the Art model of X - MP - 24 . I would like to know from the hon .
Minister as to what is the difference between X - MP - 14 and XMP124 and Fibre
 ...

Parliamentary Debates

Author: India. Parliament. Rajya Sabha

Publisher:

ISBN:

Page:

View: 594

Proceedings of the ACM SIGMETRICS Conference on Measurement and Modeling of Computer Systems

24 JO 22 28 20 10 26 24 12 STRIP OVERHEAD rul 22 10 0 20 - 10 2 16 11 1902
1903 1906 1907 10 20 GO 1005 YEAR OF MEASUREMENT JO 40 BANK
SPACING Fig . 5 . History of strip overhead time is for " the loop " on the CRAY X -
MP for several compiler releases . ... Data are shown for two models of the CRAY
XMP with differing configurations of the network between processors and
memory .

Proceedings of the     ACM SIGMETRICS Conference on Measurement and Modeling of Computer Systems

Author:

Publisher:

ISBN:

Page:

View: 976