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A person talking in a large room with many people sitting at long tables.FeaturedScienceTechnology

Users of Oak Ridge Leadership Computing Facility Gather for 21st Annual Meeting

The Oak Ridge Leadership Computing Facility (OLCF) welcomed computational scientists from around the world to its 2025 OLCF User Meeting at the Department of Energy’s Oak Ridge National Laboratory from Aug. 5 – 6. The event offered attendees an opportunity to share accomplishments, discuss challenges, and explore the road ahead for high-performance computing…
Angela Gosnell
September 9, 2025
Quantum Brilliance at OLCFFeaturedTechnology

Q&A: Inside Quantum Brilliance’s Quantum Computer Technology

With the installation of a Quantum Brilliance system in its Advanced Computing Ecosystem testbed, the Oak Ridge Leadership Computing Facility has an on-site quantum computer cluster for OLCF staff to explore how to integrate this emerging technology into classical high-performance computing, or HPC. While most experimental quantum computers demand extreme…
Coury Turczyn
September 2, 2025
ORNL researchers proposed a software architecture that would integrate emerging quantum computers with the world’s fastest supercomputing systems, such as ORNL’s exascale machine Frontier. Credit: Jason Smith/ORNL, U.S. Dept. of EnergyFeaturedScience

ORNL Study Plans Quantum-HPC Software Stack

A new study by researchers at the Department of Energy’s Oak Ridge National Laboratory traces a blueprint for a software architecture that would integrate emerging quantum computers with the world’s fastest supercomputing systems. Finding an effective approach to pair the two distinct computing platforms has become a prime focus for…
Matt Lakin
August 29, 2025
A group of people standing outside.FeaturedTechnology

ORNL Hosts Inaugural Quantum Systems & Software Workshop

The Department of Energy’s Oak Ridge National Laboratory hosted the first Oak Ridge Quantum Systems & Software Workshop (OQSSw) on July 25, bringing together 75 participants from national laboratories, academia and industry. ORNL organizers launched the workshop as the first step toward building a unified software stack for quantum-classical hybrid computing.…
Angela Gosnell
August 29, 2025
Dark background with splotches of light that look like connectivity waves through space.FeaturedScience

OLCF Upgrades Its Network Security Infrastructure

Cybersecurity at the Department of Energy’s Oak Ridge Leadership Computing Facility is under constant pressure from millions of unauthorized connection attempts each day. Now, a major upgrade to the facility’s monitoring system has strengthened defenses, reinforcing one of the nation’s most powerful computing resources against hidden threats. To address this…
Angela Gosnell
August 20, 2025
PCIP interns at OLCFFeaturedTechnology

Back to HPC Basics

Building on a successful pilot with students from this summer’s Pathways to Computing Internship Program, the Oak Ridge Leadership Computing Facility at the Department of Energy’s Oak Ridge National Laboratory will launch a new training program to develop the next generation of advanced computing professionals: hands-on administration of high-performance computing,…
Coury Turczyn
August 14, 2025
jet plumes CFD ORNLFeaturedTechnology

Shock Treatment for CFD Simulations

A team of researchers from the Georgia Institute of Technology conducted the largest-ever computational fluid dynamics, or CFD, simulation of high-speed compressible fluid flows. Using the Frontier supercomputer at the Department of Energy’s Oak Ridge National Laboratory, the team applied a new computational technique called information geometric regularization, or IGR.…
Coury Turczyn
July 23, 2025
water moleculesFeaturedScience

Getting the Matrix of Life Right

More than a year ago, computational scientists at the Department of Energy’s Oak Ridge National Laboratory published a study in the Journal of Chemical Theory and Computation that raised a serious question about a long-standing methodology used by researchers who conduct molecular dynamics simulations involving water. What if using the standard…
Coury Turczyn
July 9, 2025
air-water interfaceFeaturedScience

Speeding Up Chemical Reactions

Using the now-decommissioned Summit supercomputer, researchers at the Department of Energy’s Oak Ridge National Laboratory ran the largest and most accurate molecular dynamics simulations yet of the interface between water and air during a chemical reaction. The simulations have uncovered how water controls such chemical reactions by dynamically coupling with…
Coury Turczyn
June 17, 2025
neutron star simulation ORNLFeaturedScience

Journey to the Center of a Neutron Star

For astrophysicists, neutron stars stand out as objects of irresistible fascination — perhaps, in part, because of how difficult they are to decipher. But calculations conducted on the Frontier supercomputer, located at the Department of Energy’s Oak Ridge National Laboratory, have revealed new clues about the inner workings of neutron…
Coury Turczyn
June 2, 2025
FeaturedScience

INCITE 2026 Call for Proposals

The Innovative and Novel Computational Impact on Theory and Experiment, or INICITE, program has announced the 2026 Call for Proposals, inviting researchers to apply for access to some of the world’s most powerful high-performance computing systems. The proposal submission window runs from April 11 to June 16, 2025, offering an…
Angela Gosnell
April 11, 2025
a blue and white wisp of air flowing between two silver pillarsFeaturedScience

Quantum Study Seeks to Solve Questions on Fluid Flow

Researchers at the Department of Energy’s Oak Ridge National Laboratory tested a quantum computing approach to an old challenge: solving classical fluid dynamics problems. The study relied on support from the Quantum Computing User Program, or QCUP, part of ORNL’s Oak Ridge Leadership Computing Facility. The results highlight avenues for further study of quantum…
Matt Lakin
March 26, 2025