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Brian Tierney

staff scientist: Energy Sciences Network

Media contact: Jon Bashor, +1 510 486 5849,


Brian L. Tierney is a Staff Scientist and group leader of the ESnet Advanced Network Technologies Group at Berkeley Lab, and principal investigator of ESnet’s 100G Network Testbed Project. His research interests include high-performance networking and network protocols; distributed system performance monitoring and analysis; network tuning issues; and the application of distributed computing to problems in science and engineering. He is also the creator and lead contributor to the web site, a knowledge base for network tuning and troubleshooting.


Tierney, who has been at the Lab since 1990, has been the PI for several DOE research projects in network and grid monitoring systems for data-intensive distributed computing. He was the principal designer of the Distributed Parallel Storage System (DPSS), where many of the ideas for GridFTP originated. He also designed the first version of the NetLogger Toolkit and worked on the Bro Intrusion Detection System.


More information can be found at

Recent Publications

Recent Publications:

Sean Peisert, William Barnett, Eli Dart, James Cuff, Robert L Grossman, et al: “The Medical Science DMZ”, Journal of the American Medical Informatics Association, May 2, 2016, jamia.ocw032.full.pdf

Nathan Hanford, Vishal Ahuja, Matthew Farrens, Dipak Ghosal, Mehmet Balman, more authors » “Improving network performance on multicore systems: Impact of core affinities on high throughput flows”, Future Generation Computer Systems, November 1, 2015, FGCS-Hanford.pdf

Ewa Deelman, Christopher Carothers, Anirban Mandal, Brian Tierney, Jeffrey Smore authors » “PANORAMA: An approach to performance modeling and diagnosis of extreme-scale workflows”, International Journal of High Performance Computing Applications, July 14, 2015,

Tom Lehman, Xi Yang, Nasir Ghani, Feng Gu, Chin Guok, Inder Monga, and Brian Tierney, “Multilayer Networks: An Architecture Framework”, IEEE Communications Magazine, May 9, 2011, Multilayernetworks2.pdf

Inder Monga, Chin Guok, William E. Johnston, and Brian Tierney, “Hybrid Networks: Lessons Learned and Future Challenges Based on ESnet4 Experience”, IEEE Communications Magazine, May 1, 2011,   hybridnetworks2.pdf


M.S. in Computer Science from San Francisco State University, B.A. in physics from the University of Iowa.

last updated: 2016-07-13 14:13:54