The Library
COMPUTATIONAL SIMILARITY
Tools
UNSPECIFIED (1995) COMPUTATIONAL SIMILARITY. CONCURRENCY-PRACTICE AND EXPERIENCE, 7 (2). pp. 147-166. ISSN 1040-3108.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Abstract
The paper enunciates the principle of computational similarity, whereby calculations with the same values for certain dimensionless ratios are said to be 'computationally similar' and as a consequence have the same optimum self-speed-up and optimum number of processors. Based on a three-parameter description of the computer hardware, two dimensionless ratios, which are only a function of the problem size and the hardware parameters, completely determine the scaling. Contours of constant self-speed-up can be drawn on a two-dimensional dimensionless universal scaling diagram (DUSD). This diagram is for a particular class of timing expressions that can be shown to represent approximately the performance of a corresponding class of computer programs or benchmarks, but it applies to all computers describable by the three hardware parameters and to all problem sizes. Thus the dimensionless ratios play a similar role in the study of computer performance, as do the Reynolds and other dimensionless numbers in fluid dynamics. This dimensional analysis of computer performance is illustrated by the case of the FFT1 benchmark from the Southampton 'Genesis' distributed-memory benchmarks.
Item Type: | Journal Article | ||||
---|---|---|---|---|---|
Subjects: | Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software | ||||
Journal or Publication Title: | CONCURRENCY-PRACTICE AND EXPERIENCE | ||||
Publisher: | JOHN WILEY & SONS LTD | ||||
ISSN: | 1040-3108 | ||||
Official Date: | April 1995 | ||||
Dates: |
|
||||
Volume: | 7 | ||||
Number: | 2 | ||||
Number of Pages: | 20 | ||||
Page Range: | pp. 147-166 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |