Copyright Notice:

The documents distributed by this server have been provided by the contributing authors as a means to ensure timely dissemination of scholarly and technical work on a noncommercial basis. Copyright and all rights therein are maintained by the authors or by other copyright holders, notwithstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.

Publications of SPCL

T. Hoefler, T. Schneider, A. Lumsdaine:

 The Impact of Network Noise at Large-Scale Communication Performance

(. Vol , Nr. , In Proceedings of the 23rd IEEE International Parallel & Distributed Processing Symposium, LSPP'09 Workshop, presented in Rome, Italy, pages , , ISSN: 1530-2075, ISBN: 978-1-4244-3750-4, May 2009)
Invited to a journal special issue on top picks from LSPP'09.

Abstract

The 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.

Documents

download 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}},
  journal={},
  institution={},
  year={2009},
  month={05},
  pages={},
  volume={},
  number={},
  booktitle={Proceedings of the 23rd IEEE International Parallel \& Distributed Processing Symposium, LSPP'09 Workshop},
  location={Rome, Italy},
  publisher={},
  issn={1530-2075},
  isbn={978-1-4244-3750-4},
}