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Publications of Torsten Hoefler
Torsten Hoefler, Timo Schneider and Andrew Lumsdaine:
| | | The Impact of Network Noise at Large-Scale Communication Performance
(In Proceedings of the 23rd IEEE International Parallel & Distributed Processing Symposium, LSPP'09 Workshop, presented in Rome, Italy, ISSN: 1530-2075, ISBN: 978-1-4244-3750-4, May 2009)
Invited to a journal special issue on top picks from LSPP'09.
AbstractThe impact of operating system noise on the performance of large-scale applications is a growing concern
and ameliorating the effects of OS noise is a subject of
active research. A related problem is that of network
noise, which arises from shared use of an interconnection network by parallel processes. To characterize the
impact of network noise on parallel applications we
conducted a series of simulations and experiments using a newly-developed benchmark. Experiments results
show a decrease in the communication performance of
a parallel reduction operation by a factor of two on
246 nodes. In addition, simulations show that influence
of network noise grows with the system size. Although
network noise is not as well-studied as OS news, our
results clearly show that it is an important factor that
must be considered when running large-scale applications.
Documentsdownload article: 
download slides:
| | | BibTeX | @inproceedings{hoefler-netnoise,
author={Torsten Hoefler and Timo Schneider and Andrew Lumsdaine},
title={{The Impact of Network Noise at Large-Scale Communication Performance}},
year={2009},
month={May},
booktitle={Proceedings of the 23rd IEEE International Parallel \& Distributed Processing Symposium, LSPP'09 Workshop},
location={Rome, Italy},
issn={1530-2075},
isbn={978-1-4244-3750-4},
source={http://www.unixer.de/~htor/publications/},
} |
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