InTheLoop | 07.27.2015
ESnet Holding July 28 Congressional Briefing on Critical Role of Scientific Networking
ESnet is holding a briefing this Tuesday, July 28, to inform members of Congress and their staff about the unique role science networking plays in advancing research in academia, industry and national laboratories. ESnet Director Greg Bell will be joined by Vint Cerf, Google’s Chief Internet Evangelist and a father of the Internet, University of Hawaii President David Lassner and Susan Gregurick of the National Institutes of Health. Chip Elliott of Raytheon BBN will moderate the session, which is being organized by the lab’s Government and Community Relations Office. The briefing, held in association with the House Science and National Labs Caucus, will be held in the Rayburn House Office Building.
This year, Berkeley Lab’s Computational Research Division (CRD) is hosting six fellows from the Department of Energy’s Computational Science Graduate (CSGF) Fellowship—a new record.
Representing some of the nation’s brightest graduate students in computational science, CSGF fellows are pursuing doctoral degrees in fields that use high performance computing to solve complex science and engineering problems. As part of their fellowship, they must complete a three-month practicum at one of the 20 DOE National Laboratories.
While Berkeley Lab is always popular choice among CSGF fellows, this year's six represent the most the division has ever hosted at once. This year's fellows are Ryan McKinnon, Massachusetts Institute of Technology (MIT); Alnur Ali, Carnegie Mellon University; David Ozog, University of Oregon; Danielle Rager, Carnegie Mellon University; Adam Sealfon, MIT; and Alex Kell, MIT. »Read more.
Summer Student's App Wins Hackathon Award
Sartaj Singh Baveja, a summer student working for ESnet, has helped develop an award-winning Android app at a recent hackathon. Named "Safrzone," the app is designed to help improve safety for women and girls. An undergraduate student at Netaji Subhas Institute of Technology in New Delhi, Bavega worked with a team to develop Safrzone while participating in CHIMEHACK2. Held July 9-12 at Twitter’s San Francisco headquarters, the event was sponsored by Chime for Change, a global campaign to raise funds and awareness for girls and women around the world. The team received a $5,000 cash prize and a fully sponsored trip to the Global Citizens’ Festival in New York for winning the Engineering Excellence award at the hackathon. »Read more.
Zurawski Spreads Science DMZ Message
Jason Zurawski of ESnet’s Science Engagement Team is continuing to spread the word about the role of Science DMZs in accelerating the flow of large datasets in and out of research institutions. Originally developed by ESnet and NERSC, the Science DMZ architecture sets up a dedicated network infrastructure that allows data to securely circumvent firewalls that would otherwise slow data flows to trickles.
Most recently, Zurawski discussed the Science DMZ concept and the perfSONAR performance diagnostic software at a July 22-23 workshop sponsored by Penn State and KINBER, the Keystone Initiative for Network Based Education and Research which built and manages the 1,800-mile Pennsylvania Research and Education Network. On Aug. 11, Zurawski will cover the same topics with members of the Rocky Mountain Advanced Computing Consortium, a collaboration among academic and research institutions located throughout the intermountain states.
Last Call: SC15 Extends Deadlines for Remaining Tech Program Submissions
The deadline for remaining SC15 Technical Program submissions has been extended to Friday, Aug. 7. Programs still accepting submissions are Emerging Technologies, Posters, ACM Student Research Competition Posters, Birds-of-a-Feather Sessions (BoFs), Scientific Visualization and Data Analytics Showcase Program, and Doctoral Showcase. Visit the Technical Program page for more information. »View deadlines and submit proposals.
This Week's CS Seminars
ppOpen-HPC: Open Source Infrastructure for Development and Execution of Large-Scale Scientific Applications on Post-Peta Scale Supercomputers with Automatic Tuning (AT)
Tuesday, July 28, 1:00pm - 2:00pm, Bldg. 50F, Room 1647
Kengo Nakajima The University of Tokyo
In this presentation, recent achievements and progress of the "ppOpen-HPC" project are overviewed. ppOpen-HPC is an open source infrastructure for development and execution of optimized and reliable simulation code on post-peta-scale (pp) parallel computers based on many-core architectures with automatic tuning (AT), and it consists of various types of libraries, which cover general procedures for scientific computation. An example of automatic tuning by ppOpen-AT on 3D FDM code of seismic simulations (Seism3D) and will be demonstrated. Moreover, recent achievements in the coupled earthquake simulations using ppOpen-MATH/MP, ppOpen-APPL/FEM and ppOpen-APPL/FDM will be also presented.
A Picture is Worth a Thousand Words, But How to Extract Information from It?
Thursday, July 30, 11:00am - 12:00pm, Bldg 50F-1647 (and OSF 943-254, Video Conference)
Daniela Ushizima, Lawrence Berkeley National Laboratory and University of California, Berkeley BIDS
DOE research across science domains is often reliant on image-based data from experiments, but how to extract information from these datasets? This talk will illustrate how we have addressed analytics for DOE real images to help scientists uncover relevant but hidden information from digital images through pattern recognition and machine learning. We will show emerging techniques for dealing with data science problems, and how these advances will accelerate image analysis, scaling scientific procedures by reducing time between experiments, and opening more opportunities for more users of imaging facilities.
Towards Efficient Distributed Interior Point Methods for Conic Programs
Wednesday, July 29, 11:00am - 12:00pm, Bldg. 50A, Room 5132
Jack Poulson, Department of Mathematics Stanford University
While high-performance distributed sparse-direct solvers have existed for decades, their cousins in convex optimization, Interior Point Methods for conic programs, have not received the same attention. A brief introduction to conic programming (with an emphasis on second-order cones), Interior Point Methods, and Jordan algebras will be given, and issues related to their efficient distributed-memory parallelization will be discussed in detail. In addition to the standard uses of second-order cone programs (e.g., Robust and/or Non-negative Least Squares, SVMs, and complex-valued Basis Pursuit, LASSO, Elastic Nets, and Chebyshev points), the standard technique of avoiding pivoting via preconditioning with an unpivoted factorization of a regularized quasi-semidefinite embedding suggests a revival of augmented system approaches to (generalized) least squares problems (with double-double arithmetic being needed for condition numbers significantly above 1/sqrt(eps)). Implementations of these techniques within the open-source library Elemental will also be discussed, despite the fact the crucial missing piece of low edge degree plus low-rank decompositions of the KKT systems implies that the sparse implementations are not yet scalable.
Link of the Week: A ‘Computer’ Used to Be a Person. Now it's a Machine. What's Next?
From The Atlantic: In the last 70 years, a computer went from being a room-sized monstrosity that ran on pulleys and bulbs to a four-ounce touchscreen that’s as ordinary as it is miraculous. Now, leading computer scientists and technologists say the definition of “computer” is again changing. »Read more.