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High-Performance Distributed Computing, International Symposium on (1996)
Syracuse, New York
Aug. 6, 1996 to Aug. 9, 1996
ISSN: 1082-8907
ISBN: 0-8186-7582-9
pp: 626
Chance Reschke , Center of Excellence in Space Data and Information Sciences (CESDIS) Code 930.5 NASA Goddard Space Flight Center
Thomas Sterling , Center of Excellence in Space Data and Information Sciences (CESDIS) Code 930.5 NASA Goddard Space Flight Center
Daniel Ridge Donald Becker , Center of Excellence in Space Data and Information Sciences (CESDIS) Code 930.5 NASA Goddard Space Flight Center
Phillip Merkey , Center of Excellence in Space Data and Information Sciences (CESDIS) Code 930.5 NASA Goddard Space Flight Center
Daniel Savarese , University of Maryland
ABSTRACT
Coupling PC-based commodity technology with distributed computing methodologies provides an important advance in the development of single-user dedicated systems. Beowulf is a class of experimental parallel workstations developed to evaluate and characterize the design space of this new operating point in price-performance. A key factor determining the realizable performance under real-world workloads is the means devised for interprocessor communications. A study has been performed to characterize a family of interconnect topologies feasible with low cost mass market network technologies. Behavior sensitivities to packet size and traffic density are determined. Findings are presented which compare more complex segmented topologies to the earlier parallel ``channel bonded'' scheme. It is shown that in many circumstances the more complex topologies perform better, and in some circumstances software routing techniques compare favorably to more expensive hardware switch mechanisms.
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CITATION

D. Savarese, D. R. Becker, C. Reschke, T. Sterling and P. Merkey, "A Design Study of Alternative Network Topologies for the Beowulf Parallel Workstation," High-Performance Distributed Computing, International Symposium on(HPDC), Syracuse, New York, 1996, pp. 626.
doi:10.1109/HPDC.1996.546233
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