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Supercomputer Cracks "Impossible" Calculation

April 25, 2011

David Bailey Australian researchers have done the impossible—they’ve found the sixty-trillionth binary digit of Pi-squared! The calculation would have taken a single computer processor unit (CPU) 1,500 years to calculate, but scientists from IBM and the University of Newcastle managed to complete this work in just a few months on IBM’s BlueGene/P supercomputer, which is designed to run continuously at 1petaflop/s—that’s one quadrillion calculations per second! Their work was based on… Read More »

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Performance Tuning of Scientific Applications

March 11, 2011

  David Bailey and Samuel Williams of the Lawrence Berkeley National Laboratory’s Computational Research Division (CRD) recently published a book called, Performance Tuning of Scientific Applications, which presents current research in performance analysis from some of the most notable experts in the field.  In addition to Bailey and Williams, Robert Lucas, Director of Computational Sciences at the Information Sciences Institute was also an editor for the book, which is the ninth in the… Read More »

Two Berkeley Lab Researchers Named 2011 Sloan Fellows

February 17, 2011

Two researchers from the Lawrence Berkeley National Laboratory’s Computational Research Division have been awarded the prestigious Sloan Research Fellowship, given annually by the Alfred P. Sloan Foundation to scientists, mathematicians and economists who are at an early stage of their research careers. The awardees will receive a $50,000 grant over the next two years to pursue any line of research they choose. The new fellows from Berkeley Lab are: Per-Olof Persson, CRD Mathematics Group… Read More »

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A Clearer Picture of Carbon Sequestration

January 31, 2011

Fossil fuel-fired power plants, such as this coal-fired one, are major sources of CO2 emissions, the main culprit in manmade climate change. Despite progress in clean energy, Americans will continue to rely on fossil fuels for years to come. In fact, coal-, oil- and natural gas-fired power plants will generate 69 percent of U.S. electricity as late as 2035, according to the U.S. Energy Information Administration. Such sobering projections have sparked a wide range of proposals for keeping the… Read More »

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Berkeley Lab Team Receives NASA Public Service Group Achievement Award

June 11, 2010

Three scientists from the Lawrence Berkeley National Laboratory’s (Berkeley Lab) Computational Cosmology Center (C3) are being honored with a NASA Public Service Group Award for developing the supercomputing infrastructure for the U.S. Planck Team’s data and analysis operations at the Department of Energy's National Energy Research Scientific Computing Center (NERSC). The award will be presented to current C3 members Julian Borrill, Christopher Cantalupo and Theodore Kisner, as well as… Read More »

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Restoring Carbon Balance

February 10, 2010

CRD researchers received more than 18 million supercomputing hours through the 2010 Innovative and Novel Computational Impact on Theory and Experiment (INCITE) program to conduct experiments and run simulations exploring the viability of carbon-neutral technologies, like nano solar cells and near-zero emission combustion devices. Read More »

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Madly Mapping the Universe

February 3, 2010

It takes special software to map the universe from noisy data. Berkeley Lab scientists developed a code called MADmap to do just that for the cosmic microwave background, then posted it on the web for other interested sky mappers. Scientists probing the sky with the PACS instrument aboard the Herschel satellite have adapted MADmap to make spectacular images of the infrared universe. Read More »

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Tradition of Cosmic Microwave Background Data Analysis Continues with Planck

October 30, 2009

One of Planck's first images is shown as a strip superimposed over a two-dimensional projection of the whole sky as seen in visible light. Image credit: ESA, LFI & HFI Consortia; background optical image: Axel Mellinger More than 95 percent of our universe is made up of mysteriously "dark" materials—approximately 22 percent of it is comprised of invisible dark matter, while another 73 percent is posited to be dark energy, the force that is accelerating universal expansion. Armed with a… Read More »

Berkeley Lab Checkpoint Restart Saves Big Problems

February 9, 2009

A combustion researcher may run hundreds of hours of simulations on a supercomputer in search of the most efficient fuel-air mixture for a flame. But if the system crashes, then all the data from the run might be lost and the researchers forced to start over The new version Berkeley Lab Checkpoint Restart (BCLR) software, released in January 2009, could mean that scientists running extensive calculations will be able to recover from such a crash – if they are running on a Linux cluster. This… Read More »

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New Tools for Sharing Wealth of Data to Study Global Resources Issues

January 20, 2009

As they strive to develop effective strategies for guarding water supplies, protecting endangered species and curbing greenhouse gases, environmental scientists are turning to innovative cyber-infrastructures and data-mining tools developed by an ongoing collaboration between researchers at Lawrence Berkeley National Laboratory, Microsoft Research, and the University of California, Berkeley. The Microsoft e-Science program is the primary funder of this project, which is one of numerous ventures… Read More »