Accession Number : ADA311998

Title :   Evaluating the Hyperbolic Model on a Variety of Architectures.

Descriptive Note : Contractor rept.,

Corporate Author : INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA

Personal Author(s) : Stoica, Ion ; Sultan, Florin ; Keyes, David

PDF Url : ADA311998

Report Date : MAY 1996

Pagination or Media Count : 21

Abstract : We illustrate the application of the hyperbolic model, which generalizes standard two-parameter dedicated-link models for communication costs in message-passing environments, to four rather different distributed-memory architectures: Ethernet NOW, FDDI NOW, IBM SP2, and Intel Paragon. We first evaluate the parameters of the model from simple communication patterns. Then over-all communication time estimates, which compare favorably with experimental measurements, are deduced for the message traffic in a scientific application code. For transformational computing on dedicated systems, for which message traffic is describable in terms of a finite number of regular patterns, the model offers a good compromise between the competing objectives of flexibility, tractability, and reliability of prediction.

Descriptors :   *DISTRIBUTED DATA PROCESSING, *COMPUTER COMMUNICATIONS, MATHEMATICAL MODELS, ALGORITHMS, SOFTWARE ENGINEERING, DATA MANAGEMENT, COMMUNICATIONS TRAFFIC, PARAMETERS, COMPUTER ARCHITECTURE, INPUT OUTPUT PROCESSING, PARALLEL PROCESSING, CONCURRENT ENGINEERING, OPERATING SYSTEMS(COMPUTERS), SYSTEMS ANALYSIS, COMPUTER NETWORKS, DATA LINKS, MESSAGE PROCESSING, BUFFER STORAGE, PACKET SWITCHING.

Subject Categories : Computer Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE