LLNL's Sierra is third fastest supercomputer

Lawrence Livermore National Laboratory’s (LLNL) next-generation supercomputer, Sierra, is the third-fastest computing system in the world, according to the TOP500 list announced today at the International Supercomputing Conference in Frankfurt, Germany. Expected to be fully operational this fall, Sierra will support the National Nuclear Security Administration’s (NNSA) core mission of...

DOE HPC4Mfg Program funds 13 new projects to improve energy technologies through HPC

A U.S. Department of Energy (DOE) program designed to spur the use of high performance supercomputers to advance U.S. manufacturing is funding 13 new industry projects for a total of $3.9 million. The High Performance Computing for Manufacturing (HPC4Mfg) Program unites the world-class computing resources and expertise of the national laboratories with U.S. manufacturers to teach them how...

Livermore joins with Oak Ridge and Argonne to develop next supercomputers

The Lab has joined forces with two other national labs to deliver next generation supercomputers able to perform up to 200 peak petaflops (quadrillions of floating point operations per second), about 10 times faster than today's most powerful high performance computing (HPC) systems. The Collaboration of Oak Ridge, Argonne and Livermore (CORAL) national labs will produce systems in the...

Change in Pacific nitrogen content tied to climate change

Using deep sea corals gathered near the Hawaiian Islands, a Lawrence Livermore scientist, in collaboration with UC Santa Cruz colleagues, has determined that a long-term shift in nitrogen content in the Pacific Ocean has occurred as a result of climate change. Overall nitrogen fixation in the North Pacific Ocean has increased by about 20 percent since the mid 1800s -- a shift similar to major...

Smashing science: Livermore scientists discover how explosives respond to shockwaves

Lawrence Livermore National Laboratory researchers have combined ultrafast time-resolved experimental measurements with theory to reveal how an explosive responds to a high-impact shock.The work involved advances in both ultrafast experimental shock wave methods and molecular dynamics (MD) simulation techniques, and the combination of experiment and simulation is a milestone in understanding...

Lawrence Livermore charitable campaign raises $3.3 million for local organizations

LIVERMORE, Calif. --Lawrence Livermore National Laboratory employees, along with Lawrence Livermore National Security, LLC (LLNS ), have raised $3.3 million to give to charities within their surrounding communities. Laboratory employees pledged $2.3 million to the HOME Campaign (for Helping Others More Effectively) -- an annual charitable drive that benefits community/nonprofit agencies in...

LLNL, Las Positas College team up to present winning seminar series

Las Positas College (LPC) students studying science learned first-hand about the innovative research conducted at LLNL, as well as the teamwork that accompanies it during "Theory to Practice: How Science Gets Done." This four-part science and engineering seminar series wrapped up recently at Livermore's LPC campus receiving rave reviews from participants. The seminars, targeted for...

Setting sail toward the island of stability

Researchers searching for the elusive "island of stability" may have a better map.With the recent discovery of six new variations of the superheavy elements on the bottom rung of the periodic table, scientists are closer to creating elements that are expected to last long enough for in-depth study.LLNL's Darren Bleuel and Mathis Wiedeking are part of the 20-member team including scientists...

Sound measure is material to explosives tests

A team of Laboratory scientists have developed a new, adaptable and precise technique to measure the speed of sound in materials that will help improve large-scale explosive testing.The new technique is more versatile and technically easier to use compared to two primary conventional techniques that are technically challenging and require relatively high fluence beams or pulses, which can...