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Rad26-RNA polymerase IIScience

Decoding the Role of CSB Protein in DNA Repair

Using the Summit supercomputer at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL), a Georgia State University (GSU) research team has revealed the structural mechanism of the Cockayne Syndrome B (CSB) protein in transcription-coupled DNA repair. Led by GSU chemistry professor Ivaylo Ivanov, the team recently published…
Coury Turczyn
February 2, 2022
Science

Supercomputing for Swift Protein Modeling

Uncovering the molecular structures of proteins can help scientists elucidate biological functions of proteins and search for drug candidates for diseases. To better understand proteins, scientists can use imaging techniques to probe their molecular structures. However, many imaging techniques fall short of capturing details at the atomic level. That’s why…
Rachel McDowell
January 25, 2022
ScienceTechnology

Thinking outside the Black Box

A study led by scientists at the US Department of Energy's (DOE's) Oak Ridge National Laboratory (ORNL) plumbs the depths of deep learning and could connect the digital synapses toward better, more reliable artificial-intelligence (AI) models. The research team from ORNL and the National Energy Technology Laboratory used Summit, the…
Matt Lakin
January 6, 2022
Visualization of an aerosolized SARS-CoV-2 particle with various components inside and outside the particle.Science

2021 at the OLCF: Year in Review

In 2021, supercomputing at the US Department of Energy's (DOE's) Oak Ridge National Laboratory (ORNL) enabled new scientific breakthroughs amid the global pandemic. From modeling small particles called quarks to simulating turbulence in fusion reactors, the Oak Ridge Leadership Computing Facility's (OLCF's) flagship supercomputer, Summit, continued to provide unprecedented opportunities…
Rachel McDowell
December 30, 2021
ORNL AAIMS groupTechnology

ORNL’s AAIMS Group Scores Two Awards

Two different studies produced by the Analytics and AI Methods at Scale (AAIMS) group, which resides within the National Center for Computational Sciences at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory, won best paper awards at both the Bench’21 and SC21 conferences—all in the same week. On…
Coury Turczyn
December 7, 2021
ORNL AAIMS groupTechnology

Digging Deep into HPC Power and Cooling

Managing a supercomputer requires operators to collect and analyze data generated from the machine itself. This data includes everything from job failure rates to power consumption figures. Researchers at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) have gathered an unprecedented amount of operational data from Summit, the…
Coury Turczyn
November 15, 2021
Science

Unraveling the “Big Boom”

Simulations performed on Oak Ridge National Laboratory’s Summit supercomputer provide a more detailed look at how stars die and could help unlock new insights into the origins of Earth’s heavy elements. The study, conducted by scientists at ORNL and the University of Tennessee, Knoxville, modeled the collapse and explosion of…
Matt Lakin
November 11, 2021
People

Pioneering Frontier: Meeting Industry at Scale

The “Pioneering Frontier” series features stories profiling the many talented ORNL employees behind the construction and operation of the OLCF’s incoming exascale supercomputer, Frontier. The HPE Cray system is scheduled for delivery in 2021, with full user operations in 2022. When the Oak Ridge Leadership Computing Facility’s (OLCF’s) next supercomputer,…
Rachel McDowell
September 30, 2021
Science

Reaching Remarkable States of Matter with Laser Simulations

With the help of supercomputers, scientists are getting a better idea of how to study some of the strongest electromagnetic fields in the universe. Scientists aim to use high-power lasers to blast different materials and study the interplay between light and matter. Quantum electrodynamics (QED) is the study of how…
Rachel McDowell
September 10, 2021
Science

Shape-Based Model Sheds Light on Simplified Protein Binding

Can something as simple as shape fully determine whether or not proteins will bind together? Scientists are commissioning supercomputers to find out. A team led by Sharon Glotzer, distinguished professor and department chair of chemical engineering at the University of Michigan (UM), used the 200-petaflop Summit supercomputer at the US…
Rachel McDowell
August 9, 2021
Science

Titan Study Takes Jet Turbine Design to New Heights

Simulations performed on Oak Ridge National Laboratory’s (ORNL’s) Titan supercomputer could clear the runway for more efficient jet-engine turbines and help set a new benchmark for turbine design. The study by an international team of scientists modeled air flow over a 3D turbine blade using the computational power of Titan,…
Matt Lakin
July 22, 2021
People

Hands-On Supercomputing

On June 21–22, interns and other participants at Oak Ridge National Laboratory had the chance to run challenge problems on the nation’s fastest supercomputer at a summer hands-on training session hosted by the Oak Ridge Leadership Computing Facility (OLCF), a US Department of Energy Office of Science user facility. This…
Matt Lakin
July 22, 2021
People

Pioneering Frontier: Fine-Tuning “Serial No. 1”

The “Pioneering Frontier” series features stories profiling the many talented ORNL employees behind the construction and operation of the OLCF’s incoming exascale supercomputer, Frontier. The HPE Cray system is scheduled for delivery in 2021, with full user operations in 2022. The world’s fastest supercomputer comes with some assembly required. Frontier,…
Matt Lakin
July 21, 2021
ALCC program banner with 4 bubbles showing images of medical records, clouds, the Spallation Neutron Source target, and wind farmsScience

ALCC Program Announces 2021–2022 OLCF Research Grants

The US Department of Energy’s (DOE’s) Office of Advanced Scientific Computing Research (ASCR) is tasked with leading the world in supercomputing, high-end computational science, and advanced networking for science. One of its most important tools in advancing computational science is the annual ASCR Leadership Computing Challenge (ALCC). The competitive program…
Coury Turczyn
July 2, 2021
Technology

Benchmarking Mixed-Precision Performance

Today at ISC High Performance 2021, a European virtual conference for high-performance computing (HPC), the Oak Ridge Leadership Computing Facility’s (OLCF’s) Summit was ranked as the world’s second-fastest supercomputer in the 57th TOP500 list. But it also took second place in a relatively new benchmark test apart from the main…
Coury Turczyn
June 28, 2021