Public Release: 13-Nov-2017
SC17 Scalable clusters make HPC R&D easy as Raspberry Pi
A quest to help the systems software community work on very large supercomputers without having to actually test on them has spawned an affordable, scalable system using thousands of inexpensive Raspberry Pi nodes.
Public Release: 13-Nov-2017 Diagnosing supercomputer problems
A team of computer scientists and engineers from Sandia National Laboratories and Boston University recently won the Gauss Award at the International Supercomputing conference for their paper about using machine learning to automatically diagnose problems in supercomputers.
Public Release: 6-Nov-2017
Journal of Physical Chemistry C First-ever US experiments at new X-ray facility may lead to better explosive modeling
For the first time in the US, time-resolved small-angle x-ray scattering (TRSAXS) is used to observe ultra-fast carbon clustering and graphite and nanodiamond production in the insensitive explosive Plastic Bonded Explosive (PBX) 9502, potentially leading to better computer models of explosive performance.
Public Release: 6-Nov-2017 Infrastructure optimization tool from Sandia helps design future bases
Sandia National Laboratories has been helping the US Army identify the best equipment for temporary bases overseas since 2013. For the first time, a Sandia-designed software tool is being used to recommend the core set of equipment for bases to be built in 2020 and beyond.
Public Release: 2-Nov-2017
Journal of Physical Chemistry Chemical Physics Story tips from the Department of Energy's Oak Ridge National Laboratory, November 2017
Story tips from ORNL, November 2017: Fast-learning computing technique supports hurricane damage assessments; neutrons unlock liquid flow mystery; 'puckering' 2D material creates tunable energy gap; window air conditioning prototype allows safe use of propane refrigerant; graphene nanoribbons become semiconductors through precise electrical contacts.
Department of Energy, Office of Science
Public Release: 30-Oct-2017 Tourassi named top scientist at ORNL's annual Awards night
Georgia Tourassi of Oak Ridge National Laboratory's Computing and Computational Sciences Directorate has received the ORNL Director's Award for Outstanding Individual Accomplishment in Science and Technology.
Public Release: 30-Oct-2017
Nature Ecology & Evolution White rot fungi's size explained by breadth of gene families involved
Armillaria fungi are among the most devastating fungal pathogens, causing root rot disease in more than 500 plant species found in forests, parks and vineyards. As white rot fungi, they are capable of breaking down all components of plant cell walls, a capability that interests bioenergy researchers. In Nature Ecology & Evolution, an international team analyzed and compared four Armillaria fungal genomes with those of related fungi to better understand the evolution of Armillaria's abilities.
DOE/Office of Science
Public Release: 20-Oct-2017 Two ORNL-led research teams receive $10.5 million to advance quantum computing for science
DOE's Office of Science has awarded two research teams, each headed by a member of ORNL's Quantum Information Science Group, more than $10 million over 5 years to both assess the feasibility of quantum architectures in addressing big science problems and to develop algorithms capable of harnessing the massive power predicted of quantum computing systems. The two projects are intended to work in concert to ensure synergy across DOE's quantum computing research spectrum and maximize mutual benefits.
US Department of Energy
Public Release: 16-Oct-2017
Nature Decoding the origin of heavy elements in the light from a neutron star merger
On Aug. 17, scientists around the globe were treated to near-simultaneous observations by separate instruments: One set of Earth-based detectors measured the signature of a cataclysmic event sending ripples through the fabric of space-time, and a space-based detector measured the gamma-ray signature of a high-energy outburst emanating from the same region of the sky.
Public Release: 11-Oct-2017 Exploring the exotic world of quarks and gluons at the dawn of the exascale
As nuclear physicists delve ever deeper into the heart of matter, they require the tools to reveal the next layer of nature's secrets. Nowhere is that more true than in computational nuclear physics. A new research effort led by theorists at DOE's Thomas Jefferson National Accelerator Facility (Jefferson Lab) is now preparing for the next big leap forward in their studies thanks to funding under the 2017 SciDAC Awards for Computational Nuclear Physics.
Department of Energy
Public Release: 11-Oct-2017
Nature Communications Tracking the viral parasites of giant viruses over time
In freshwater lakes, microbes regulate the flow of carbon and determine if the bodies of water serve as carbon sinks or carbon sources. Viruses exist amidst all bacteria, usually in a 10-fold excess and include virophages which live in giant viruses and use their machinery to replicate and spread. Reported in Nature Communications, researchers at The Ohio State University and the DOE Joint Genome Institute have effectively doubled the number of known virophages.
DOE/Office of Science
Public Release: 5-Oct-2017
Cell Liverwort genes and land plant evolution
The common liverwort is a living link to the transition from marine algae to land plants. In the Oct. 5, 2017 issue of Cell, an international team including researchers at the DOE Joint Genome Institute, analyzed the genome sequence of the common liverwort (Marchantia polymorpha) to identify genes and gene families that were deemed crucial to plant evolution and have been conserved over millions of years and across plant lineages.
US Department of Energy
Public Release: 4-Oct-2017
IEEE Computers in Science and Engineering Assessing regional earthquake risk and hazards in the age of exascale
Researchers from Berkeley Lab, Lawrence Livermore Lab and UC Davis are building the first-ever end-to-end simulation code to precisely capture the geology and physics of regional earthquakes, and how the shaking impacts buildings.
Public Release: 3-Oct-2017
Nature Methods Benchmarking computational methods for metagenomes
To tackle assembling metagenomes, then binning these consensus regions into genome bins, and finally conducting taxonomic profiling, analysts around the world have developed an array of different computational tools, but until now there was a lack of consensus on how to evaluate their performance. In Nature Methods, a team including DOE JGI researchers described the results of the Critical Assessment of Metagenome Interpretation (CAMI) Challenge, the first-ever, community-organized benchmarking assessment of computational tools for metagenomes.
DOE/Office of Science
Public Release: 3-Oct-2017
Nature Energy NREL, Johns Hopkins develop method to quantify life cycle land use of natural gas
A case study of the Barnett Shale region in Texas, where hydraulic fracturing was first implemented, for the first time provides quantifiable information on the life cycle land use of generating electricity from natural gas based on physical measurements instead of using assumptions and averages that were previously used for evaluation.
Public Release: 26-Sep-2017 A quantum computer to tackle fundamental science problems
Two Berkeley Lab teams will receive Department of Energy funding to develop near-term quantum computing platforms and tools to be used for scientific discovery in the chemical sciences. One team will develop novel algorithms, compiling techniques and scheduling tools, while the other team will design prototype four- and eight-qubit processors to compute these new algorithms.
Public Release: 21-Sep-2017 PPPL physicist Francesca Poli named ITER Scientist Fellow
Physicist Francesca Poli of the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) has been appointed an ITER Scientist Fellow. She will join a network of researchers who have achieved international recognition and will work closely with ITER, an international tokamak under construction in France, to develop the scientific program to be carried out during the fusion device's lifetime.
Public Release: 18-Sep-2017
Scientific Reports Enzyme's worth to biofuels shown in latest NREL research
An enzyme discovered at the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) proves adept at breaking down cellulose fibers regardless of whether their crystalline structure is simple or highly complex. No other enzyme has shown that ability.
Public Release: 14-Sep-2017
Proceedings of the National Academy of Sciences New insights into nanocrystal growth in liquid
PNNL researchers have measured the forces that cause certain crystals to assemble, revealing competing factors that researchers might be able to control. The work has a variety of implications in both discovery and applied science. In addition to providing insights into the formation of minerals and semiconductor nanomaterials, it might also help scientists understand soil as it expands and contracts through wetting and drying cycles.
Department of Energy, National Science Foundation, Pacific Northwest National Laboratory, China's Xi'an Jiaotong University
The Department of Energy's Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time.