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InTheLoop | 07.22.2013

The weekly newsletter for Berkeley Lab Computing Sciences

July 22, 2013

Startup Morphs Berkeley Lab's Bro into Commercial Platform

A start-up named Broala has been formed to expand the open-source intrusion detection system known simply as Bro that has been used in high-speed research networks for about two decades.  The Bro IDS has been used for security monitoring in high-speed networks, notably the Energy Sciences Network (ESnet) which has deployed it for about 15 years to monitor and protect ESnet.

The founders of Berkeley, Calif.-based Broala include Robin Sommer (researcher in the Computational Research Division’s (CRD’s) Advanced Computing for Science Department), Vern Paxon (former CRD researcher), Liam Randall and Seth Hall. In Network World, the founders say they intend to maintain Bro’s open-source heritage but also to expand this core open source code to include newer applications. Berkeley Director Greg Bell is also quoted in the story. Read more.

SC13 Registration Now Open

Registration for the Supercomputing Conference 2013 (SC13) is now open. This year’s conference will be held at the Colorado Convention Center in Denver, Colo. from November 17-22, 2013.  See the Technical Program Schedule online here. Register online here.

Mountain Lions at Berkeley Lab Talk at Noon Today

Berkeley Lab is working with the Felidae Conservation Fund to determine and assess mountain lion activity at the main Lab site. A lecture today, in the Building 50 Auditorium from noon to 1 p.m. will addresses whether mountain lions exist in the neighborhood and what role they play in our local ecosystem. The lecturer from Felidae will discuss other local wildlife as well as the efforts of the Bay Area Puma Project. The lecture will be streamed here.

Berkeley Lab to Start Paper Towel Composting Program

Sustainable Berkeley Lab, in collaboration with Facilities, EH&S, and the Lab’s waste hauler (Richmond Sanitary), will start collection of paper towels from bathrooms for composting. After use, paper towels only should be thrown into trash bins located in bathrooms. Signs will be posted in these locations as a reminder for employees. Other waste should be discarded in your building's landfill or recycling bins (typically located in offices or kitchen areas). With this step, the Lab will divert a substantial portion of waste material from the landfill and provide an infrastructure to expand composting on the hill campus.

Over the next few months, Sustainable Berkeley Lab will assess and adapt the program through custodian, occupant, and your feedback. If you have any questions, suggestions, or concerns, please email sbl@lbl.gov.

Violating Traffic Rules Can Get Pricey

Motorists, cyclists, and pedestrians are reminded that California traffic laws are the same at the Lab’s main hill site as they are on public roads. UC Police officers patrol the Lab every day and violations can cost more than you think — speeding tickets range from $238-$490 and running a stop sign or not yielding to pedestrians in crosswalks is $238. Go here for more 2013 traffic fines.

Green Flash Heralds Potential Breakthrough in Climate Modeling, Exascale Design

HPCwire summarized a story recently published in the Berkeley Science Review, which describes how computer scientists from Berkeley Lab’s CRD and UC Berkeley's Electrical Engineering and Computer Science Department are developing a customized system called Green Flash, where hardware and software are designed together, to run climate simulations that are both accurate and more energy efficient than ever before. The HPCwire story quotes CRD’s Michael Wehner. Read more

This Week’s Computing Sciences Seminars

Robust extraction of vortices
Monday, July 22, 2:00pm - 3:00pm , Bldg. 50F, Room 1647
Dr. Jens Kasten, Image and Signal Processing Group, Leipzig University, Germany

Abstract: The extraction of vortices plays a fundamental role in the analysis of fluid flows. They are one of the main structures that are relevant for different engineering tasks such as the construction of airfoils or streamlined cars. Due to the increasing complexity of flow fields, the extraction of these structures becomes more and more complicated. Methods based on derivatives reach the limitation of their applicability. In addition, the number of vortices increases with the complexity of the flow. But, not all vortices are equally important. Their influence on the flow field is related to their strength, i.e., the energy transported by the vortex. It is therefore helpful to discriminate between individual vortices by assigning an importance measure to theses structures.

Both problems can be approached by using persistent homology. In his talk, Dr. Kasten will show how to extract vortices using the acceleration magnitude combined with robust combinatorial scalar field topology. Using advanced tracking methods, persistence can be extended by lifetime resulting in a spatiotemporal measure for vortex significance. The abilities of the method are demonstrated using different data sets of increasing complexity.

Future Internet Research and Ecological Internet
Tuesday, July 23 , 11 a.m. -12 noon, Bldg. 50B, Room 1217
Kilnam Chon, Professor Emeritus, KAIST and Visiting Professor, Keio University, Japan

Abstract: The Internet is more than 40 years old. There are more than 2 billion Internet users now, and passed the tipping point of 25 percent. We expect 5 billion users by 2020. It is about time to think about what kind of the global infrastructure the Internet should provide in the coming decades. The talk covers the future Internet research, which addresses fundamental issues on the Internet for the coming decades. Then, the talk covers what is happening on the Internet around the world, and concludes with what we may anticipate on the Internet toward the ecological Internet, which is to harmonize with the human society and the global environment.

Link of the Week: Americans continue to use more renewable energy sources

Americans used more natural gas, solar panels and wind turbines and less coal to generate electricity in 2012, according to the most recent U.S. energy charts released by Lawrence Livermore National Laboratory. Each year, the Laboratory releases energy flow charts that track the nation's consumption of energy resources.

Overall, Americans used 2.2 quadrillion BTU, or quads, less in 2012 than the previous year (BTU or British Thermal Unit is a unit of measurement for energy; 3,400 BTU is equivalent to about 1 kW-hr). Read more.


About Computing Sciences at Berkeley Lab

The Lawrence Berkeley National Laboratory (Berkeley Lab) Computing Sciences organization provides the computing and networking resources and expertise critical to advancing the Department of Energy's research missions: developing new energy sources, improving energy efficiency, developing new materials and increasing our understanding of ourselves, our world and our universe.

ESnet, the Energy Sciences Network, provides the high-bandwidth, reliable connections that link scientists at 40 DOE research sites to each other and to experimental facilities and supercomputing centers around the country. The National Energy Research Scientific Computing Center (NERSC) powers the discoveries of 6,000 scientists at national laboratories and universities, including those at Berkeley Lab's Computational Research Division (CRD). CRD conducts research and development in mathematical modeling and simulation, algorithm design, data storage, management and analysis, computer system architecture and high-performance software implementation. NERSC and ESnet are DOE Office of Science User Facilities.

Lawrence Berkeley National Laboratory addresses the world's most urgent scientific challenges by advancing sustainable energy, protecting human health, creating new materials, and revealing the origin and fate of the universe. Founded in 1931, Berkeley Lab's scientific expertise has been recognized with 13 Nobel prizes. The University of California manages Berkeley Lab for the DOE’s Office of Science.

DOE’s Office of Science is the single largest supporter of basic research in the physical sciences in the United States, and is working to address some of the most pressing challenges of our time. For more information, please visit science.energy.gov.