A-Z Index | Phone Book | Careers

News

LBNL’s Evaluation of Earth Simulator Performance Nominated for Best Paper Award at SC2004

September 1, 2004

With the re-emergence of viable vector computing systems such as the Earth Simulator and the Cray X1, there is renewed debate about which architecture is best suited for running large-scale scientific applications. In order to cut through the conflicting claims of fastest, biggest, etc., a team led by Lenny Oliker of CRD’s Future Technologies Group put five different systems through their paces, running four different scientific applications key to DOE research programs. As part of… Read More »

Cosmology Code’s Performance Characteristics Generates Paper

September 1, 2004

When the team from LBNL’s CRD and NERSC Divisions spent a week conducting performance evaluations of Japan’s Earth Simulator in late 2003, one of the five codes they intended to run did not scale well enough to be used. According to team leader Lenny Oliker, the application MADCAP (the Microwave Anisotropy Dataset Computational Analysis Package), a parallel implementation of cosmic microwave bacground map-making and power spectrum estimation algorithms, has been tuned since then… Read More »

Python/Globus Tools Speed Up Development of Data Grid for LIGO

July 1, 2004

BERKELEY, Calif. Programming tools developed at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory by Keith Jackson and his colleagues in the Computational Research Division’s Secure Grid Technologies Group have been used to set up an efficient system to distribute new data that will put the predictions of Einstein’s General Theory of Relativity to the test. To date, more than 50 TB of data from LIGO has been replicated to nine sites on two continents, quickly and… Read More »

They’re Cool, but How Can We Use Them?

July 1, 2004

Start with a quantum dot — a conglomeration of a few hundreds or thousands of atoms in which it is possible to control a single electron. Attach to the dot four rods of another material which are electronically coupled to the central quantum dot, then have the rods start branching. You’re creating nanocrystals in various shapes that may have useful electronic or optical properties. But how do you find out what those proper- ties are? Examples of nanostructures made possible by the … Read More »

China’s NSF Honors Lin-Wang Wang with Outstanding Young Researcher Award

July 1, 2004

Lin-Wang Wang, a staff scientist in the Scientific Computing Group, recently won an Overseas Outstanding Young Researcher Award from the National Natural Science Foundation of China, China’s equivalent of the U.S. National Science Foundation. These awards are given to recognize the recipients’ academic achievements in their fields and to encourage collaborations with Chinese universities and research insti- tutes. The three-year award provides Lin-Wang with funding of about $50,000. He… Read More »

Summer Students Further Their Careers While Participating in Cutting-Edge Research

July 1, 2004

Each summer, Berkeley Lab’s Computing Sciences organization hosts students from various universities in the United States and abroad. Additionally, through the DOE’s Computational Science Graduate Fellowship (CSGF), which works to identify and support some of the best computational science graduate students in the nation, fellows participate in a three-month practicum at a DOE research laboratory. Berkeley Lab is hosting two CSGF fellows this summer. One CSGF fellow at the Lab,… Read More »

Anatomy of a Web(bed) Legend: Virtual Frog Web Site Still Making a Splash After 10 Years on the Web

June 8, 2004

In the wild, a frog may live to 10 years, assuming it survives tadpolehood and doesn’t get eaten by a bird or a fish or some other creature. On the Web, though, a virtual frog named “Fluffy” has easily notched its tenth year despite millions of dissections. Launched in June1994, by the U.S. Department of Energy’s Lawrence Berkeley National Laboratory, the Virtual Frog Dissection Kit Web site allows users to virtually dissect a frog without all that smelly formaldehyde of high school… Read More »

3EMH5nqI6M6lvVEFwO0EaDPzTDt95U69tbMaIMPClordJtxdq9FKWbw8-VNAtuWQl1yDws190.jpg

Raquel Romano Named Alvarez Fellow in Computational Science

May 1, 2004

Raquel Romano, a member of the Imaging and Informatics Group in the Computational Research Division, has been selected as the next Luis W. Alvarez Post-Doctoral Fellow in Computational Science. Here she is congratulated by Horst Simon, associate lab director for Computing Sciences. After earning her bachelor’s degree in mathematics from Harvard, Romano earned both her master’s and Ph.D. in computer science at MIT. At Berkeley Lab, she is working to develop computer vision and… Read More »

Screen-Shot-2015-07-02-at-3.17.31-PM.png

Scientific Data Management Center Helping Scientists Focus on Science, Not Data

May 1, 2004

While terascale supercomputers are giving computational scientists unparalleled research capabilities, these systems are also producing huge amounts of data to be managed. Similar situations confront researchers using massive experimental facilities, where new experiments will be generating unprecedented quantities of scientific data. As a result, researchers often spend more time trying to find ways to manage their data instead of analyzing them. To help scientists make effective and… Read More »

CRD’s AMR Methods Accelerate MHD Simulations

May 1, 2004

The annual Supercomputing conference held every November is well known as a sort of international watering hole, where many of the world’s leading experts in high- performance computing gather for a week to take stock of the competition, exchange ideas, and make new connections. At SC2000 in Dallas, Phil Colella, head of the Applied Numerical Algorithms Group at Lawrence Berkeley National Laboratory, and Steve Jardin, co-leader of the Computational Plasma Physics Group at Princeton… Read More »