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InTheLoop | 05.26.2015

May 26, 2015

Supernova Hunting with Supercomputers

Type Ia supernovae are famous for their consistency. Ironically, new observations suggest that their origins may not be uniform at all.

Using a “roadmap” of theoretical calculations and supercomputer simulations performed at NERSC by Berkeley Lab scientist Daniel Kasen, astronomers observed for the first time a flash of light caused by a supernova slamming into a nearby star, allowing them to determine the stellar system from which the supernova was born. Kasen's simulations predicted the flash, guiding astronomers in their hunt. This finding confirms one of two competing theories about the birth of Type Ia supernovae. But taken with other observations, the results imply that there could be two distinct populations of these objects. The findings appeared in the May 20 an advance online issue of Nature. »Read more.

Numerical Aerodynamic Simulation Program wins Test of Time Award

The Supercomputing Conference (SC15) Test of Time Award Committee has recognized “The NAS Parallel Benchmarks - Summary and Preliminary Results” as the SC15 Test of Time Award (ToTA) paper for this year. The SC91 paper's list of coauthors include Berkeley Lab's David Bailey (CRD) and Deputy Lab Director and former ALD for Computing Sciences Horst Simon.

The ToTA recognizes an outstanding paper that has appeared at the SC conference and has deeply influenced the HPC discipline. It is a mark of historical impact and recognition that the paper has changed HPC trends, and will be presented at the SC15 conference in a non-plenary session and the authors will be asked to give a presentation on the work in Austin, TX in November 2015.

“The paper and benchmark captures specifications and implementations of an important set of representative scientific codes,” said Jack Dongarra, SC15 Test of Time Award Chair from University of Tennessee, Knoxville.  “The work is still actively used, and has inspired numerous sets of benchmarking codes that continue to drive research and development innovation.” »Read more.

Enlighten Your Research Global Proposal Deadline Extended to June 7

Would your research project significantly benefit from enhanced global‪ network connectivity? It's not too late: The Enlighten Your Research Program Global (EYR-Global) has extended its deadline for proposals to June 7 (formerly May 30). The EYR-Global program was patterned after SURFnet’s successful national Enlighten Your Research competition in the Netherlands, and represents an important step forward in helping researchers in all fields to incorporate advanced global research networks to significantly improve discoveries and collaboration processes. In 2013, the first inaugural EYR-Global program resulted in four research projects in climate research, life sciences, and computer science receiving awards in the form of network resources and/or engineering consultations to improve the research workflows in each project.

For 2015, EYR-Global is seeking to support even more projects. The two-step proposal process includes review by a panel of judges representing each of the sponsoring organizations. Final EYR-Global proposal projects may have access to

  • High performance network infrastructures operated by participating NRENs and their partners.
  • Support and consultation with expert network engineers to devise the best end-to-end network connectivity plan to support the proposed research.
  • Commitment from each participating NREN for an agreed level of network resource provisioning and ongoing support during the program period.

 »Learn more. »Submit a proposal.

No CS Seminars Scheduled This Week

For late-breaking seminars, please check the »CS Seminars Calendar.

Link of the Week: Flashback to SC2000

The SC2000 Network Challenge for Bandwidth-Intensive Applications encouraged participants to "break the network" a.k.a SCinet. The Berkeley Lab team won the "Fastest and Fattest" category for overall best performance for demonstrating Visapult. They recorded a peak performance level of 1.48 Gbps over 5 seconds. »See a photo of the team.