Oak Ridge Today

New 200-petaflop supercomputer to succeed Titan at ORNL

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Summit Supercomputer Cabinets Graphic

This a graphical representation of the Summit computer cabinets. It is not a photograph of the final design. (Image courtesy ORNL/November 2014)

 

A new 200-petaflop supercomputer will succeed Titan at Oak Ridge National Laboratory, and it could be available to scientists and researchers in 2018, a spokesperson said this week.

The new IBM supercomputer, named Summit, could about double the computing power of what is now the world’s fastest machine, a Chinese system named Sunway TaihuLight, according to a seminannual list of the world’s top supercomputers released in June.

Sunway TaihuLight is capable of 93 petaflops, according to the list, the TOP500 list. A petaflop is one quadrillion calculations per second. That’s 1,000 trillion calculations per second.

Summit, which is expected to start operating at ORNL early in 2018, is one of three supercomputers that the U.S. Department of Energy expects to exceed 100 petaflops at three U.S. Department of Energy laboratories in 2018. The three planned systems are:

  • the 200-petaflop Summit at ORNL, which is expected to be available to users in early 2018;
  • a 150-petaflop machine known as Sierra at Lawrence Livermore National Laboratory near San Francisco in mid-2018; and
  • a 180-petaflop supercomputer called Aurora at Argonne National Laboratory in Chicago in late 2018.

[Read more…]

ORNL technique could set new course for extracting uranium from seawater

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ORNL-TOC-Graphic

Using high-energy X-rays, researchers discovered uranium is bound by adsorbent fibers in an unanticipated fashion. (Image by ORNL)

 

An ultra-high-resolution technique used for the first time to study polymer fibers that trap uranium in seawater may cause researchers to rethink the best methods to harvest this potential fuel for nuclear reactors.

The work of a team led by Carter Abney, a Wigner Fellow at the U.S. Department of Energy’s Oak Ridge National Laboratory, shows that the polymeric adsorbent materials that bind uranium behave nothing like scientists had believed. The results, gained through collaboration with the University of Chicago and detailed in a paper published in Energy and Environmental Science, highlight data made possible with X-ray Absorption Fine Structure spectroscopy performed at the Advanced Photon Source. The APS is a DOE Office of Science User Facility at Argonne National Laboratory.

“Despite the low concentration of uranium and the presence of many other metals extracted from seawater, we were able to investigate the local atomic environment around uranium and better understand how it is bound by the polymer fibers,” Abney said. [Read more…]

INCITE grants awarded to 56 research projects at ORNL, Argonne

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Oak Ridge National Laboratory Sign

The U.S. Department of Energy’s Office of Science has announced 56 projects aimed at accelerating discovery and innovation to address some of the world’s most challenging scientific questions. The projects will share 5.8 billion core hours on America’s two most powerful supercomputers dedicated to open science at Oak Ridge and Argonne national laboratories.

The diverse projects will advance knowledge in critical areas ranging from sustainable energy technologies to next-generation materials, a press release said.

Researchers from academia, government research facilities, and industry received computing time through the Innovative and Novel Computational Impact on Theory and Experiment, or INCITE, program. The program was created as the primary means of accessing the DOE Leadership Computing Facilities at Argonne and Oak Ridge national laboratories.

“The INCITE program drives some of the world’s most ambitious and groundbreaking computational research in science and engineering,” said James Hack, director of the National Center for Computational Sciences, home to the Oak Ridge Leadership Computing Facility, a DOE Office of Science User Facility. “The program has a very strong and diverse collection of projects in 2016, and we look forward to working with investigators to ensure they succeed with their challenging objectives.” [Read more…]

ORAU receives $23 million contract for DOE worker screening program

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Oak Ridge Associated Universities Building MC-100

The Oak Ridge Associated Universities Building MC-100 is pictured above.

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The Department of Energy has awarded ORAU a five-year, $23 million contract to continue managing its National Supplemental Screening Program. ORAU has managed this worker health screening program for DOE since 2005. The screening programs are free for former energy workers who may have been exposed to hazardous substances at work.

“We are pleased that DOE has once again entrusted us with this significant responsibility to provide a vital service for their former workers,” said Andy Page, ORAU president and chief executive officer. “Our team, including doctors and other medical specialists, understands the importance of this project and welcomes the opportunity to continue lending their expertise to this service for the former workers.”

To provide the NSSP services, ORAU partners with Comprehensive Health Services Inc., National Jewish Health, the University of Colorado, Denver Health Sciences Center, and Axion Health. [Read more…]

ORNL awarded two Energy Frontier Research Centers

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David Wesolowski and Yanwen Zhang

Pictured above are David Wesolowski, left, director of the Fluid Interface Reactions, Structures, and Transport Center; and Yanwen Zhang, director of the Energy Dissipation to Defect Evolution Center. (Photo courtesy ORNL)

Oak Ridge National Laboratory will be home to two Energy Frontier Research Centers announced this week by U.S. Energy Secretary Ernest Moniz. The Department of Energy awarded a total of $100 million to 32 EFRC projects to accelerate the scientific breakthroughs needed to build the 21st-century energy economy. 

“Today, we are mobilizing some of our most talented scientists to join forces and pursue the discoveries and breakthroughs that will lay the foundation for our nation’s energy future,” Secretary Moniz said. “The funding we’re announcing today will help fuel scientific and technological innovation.”

The two ORNL EFRCs are a renewal of the Fluid Interface Reactions, Structures, and Transport (FIRST) Center, which is led by David Wesolowski, and a new award to the Energy Dissipation to Defect Evolution (EDDE) Center, led by Yanwen Zhang.

ORNL scientists also partnered on successful proposals to lay the groundwork for fundamental advances in solar energy, electrical energy storage, carbon capture and sequestration, materials and chemistry by design, biosciences, and extreme environments. Those proposals include three new projects (led by the Georgia Institute of Technology, the State University of New York–Stony Brook, and Pennsylvania State University) and three renewals (led by Washington University in St. Louis, Lawrence Berkeley National Laboratory, and the Massachusetts Institute of Technology). [Read more…]

NNSA marks 10th anniversary of Global Threat Reduction Initiative

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Frank Klotz

Frank Klotz

WASHINGTON, D.C.—The National Nuclear Security Administration on Thursday marked the 10th anniversary of the Global Threat Reduction Initiative, GTRI. Since the Sept. 11 attacks, reducing the threat of terrorist acquisition of nuclear or radiological material has been a core mission of NNSA, and it is a mission that will continue into the future.

“The Global Threat Reduction Initiative’s history demonstrates how seriously we take this mission and our commitment to fulfilling President Obama’s nuclear security agenda,” said U.S. Department of Energy Under Secretary for Nuclear Security and NNSA Administrator Frank G. Klotz. “However, the threat to national and global security from state or terrorist acquisition of nuclear and radiological materials is far from gone, and our focus now is on addressing the substantial threats that remain.”

GTRI, an NNSA nuclear nonproliferation program, works with partners around the world to reduce and consolidate global stockpiles of highly enriched uranium, or HEU, and plutonium, and to secure dangerous radiological sources both at home and abroad. GTRI and its predecessor programs have removed and secured more than enough material for 980 nuclear weapons and tens of thousands of radiological dirty bombs by converting HEU research reactors and isotope production facilities to the use of low enriched uranium, or LEU; removing or confirming disposition of HEU and plutonium; and securing nuclear and radiological sites around the world. [Read more…]

INCITE grants awarded to 59 computational research projects

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Titan Supercomputer at Oak Ridge National Laboratory

The U.S. Department of Energy has announced 59 scientific projects that will share nearly six billion core hours on two of America’s fastest supercomputers, including the Titan supercomputer at Oak Ridge National Laboratory, pictured above. (Photo courtesy of ORNL)

The U.S. Department of Energy’s Office of Science announced 59 projects, promising to accelerate scientific discovery and innovation, that will share nearly six billion core hours on two of America’s fastest supercomputers dedicated to open science. Their work will advance knowledge in critical areas from sustainable energy technologies to the environmental consequences of energy use.

The allocations come from the Innovative and Novel Computational Impact on Theory and Experiment, or INCITE, program. Through it, the world’s most advanced computational research projects from academia, government, and industry are given access to DOE’s leadership computing facilities at Oak Ridge and Argonne national laboratories. [Read more…]

Chinese supercomputer still No. 1, ORNL’s Titan No. 2

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Titan Supercomputer at Oak Ridge National Laboratory

Titan at Oak Ridge National Laboratory stayed at No. 2 in a Top 500 ranking of the world’s most powerful supercomputers released Monday morning. (Photo courtesy of ORNL)

A Chinese supercomputer kept its top ranking, and Titan at Oak Ridge National Laboratory stayed at No. 2 in a Top 500 ranking of the world’s most powerful supercomputers released Monday morning.

The top two spots were unchanged from the semiannual rankings released five months ago in June, when Tianhe-2, a supercomputer developed by China’s National University of Defense Technology, bumped Titan from the top spot. The ORNL supercomputer had been named No. 1 one year ago.

The rankings released Monday at the SC13 conference in Denver, Colo., said Tianhe-2 is capable of performing 33.86 petaflops. That’s 33.86 quadrillion calculations per second, on what is known as a Linpack benchmark test.

Titan is a Cray XK7 system that achieved 17.59 petaflops. Titan is one of the most energy-efficient systems on the list, consuming a total of 8.21 megawatts and delivering 2.143 gigaflops per watt, a press release said. [Read more…]

Budget cuts cause concern in research community, including at ORNL

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Thom Mason

Thom Mason

The budget deal that Congress approved earlier this month to reopen the government and raise the debt ceiling kept in place automatic budget cuts known as sequestration.

But those across-the-board cuts are causing concern in the scientific community, including at Oak Ridge National Laboratory.

In August, ORNL Director Thom Mason said the lab had been, up to that point, mostly immune from the cuts because of steps that UT-Battelle, the managing and operating contractor, had already taken to cut costs, including through workforce restructuring, reduced staff and overhead budgets, and benefit changes.

“We’ve just been doing everything we can to prepare for lean budgets,” Mason said. [Read more…]

ORNL-grown oxygen ‘sponge’ presents path to better catalysts, energy materials

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ORNL Oxygen Sponge

This schematic depicts a new ORNL-developed material that can easily absorb or shed oxygen atoms. (Photo courtesy ORNL)

Scientists at Oak Ridge National Laboratory have developed a new oxygen “sponge” that can easily absorb or shed oxygen atoms at low temperatures. Materials with these novel characteristics would be useful in devices such as rechargeable batteries, sensors, gas converters, and fuel cells.

Materials containing atoms that can switch back and forth between multiple oxidation states are technologically important but very rare in nature, said ORNL’s Ho Nyung Lee, who led the international research team that published its findings in Nature Materials. [Read more…]

Chinese supercomputer bumps ORNL’s Titan from No. 1 spot

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Tianhe-2 Lights

Lights on the Chinese Tianhe-2 supercomputer, which has a theoretical peak that is twice as fast as the Titan supercomputer at Oak Ridge National Laboratory. (Photo courtesy Jack Dongarra)

A Chinese supercomputer has bumped the Titan supercomputer at Oak Ridge National Laboratory from the No. 1 spot on a semiannual ranking of the world’s most powerful supercomputers.

The Tianhe-2, which was developed by China’s National University of Defense Technology, is capable of 33.86 petaflops, or more than 33,000 trillion calculations per second.

Now ranked No. 2, Titan was able to perform 17,000 trillion calculations per second, or 17.59 petaflops, according to the list published in November. [Read more…]

ORNL recipe for oxide interface perfection opens path to novel materials

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By tweaking the formula for growing oxide thin films, researchers at the Oak Ridge National Laboratory achieved virtual perfection at the interface of two insulator materials.

This finding, published in the journal Advanced Materials, could have significant ramifications for creation of novel materials with applications in energy and information technologies, leading to more efficient solar cells, batteries, solid oxide fuel cells, faster transistors, and more powerful capacitors.

[Read more…]