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Supercomputing

Group of 70 students sit at tables and listen to a presenter during a computing session.Featured

OLCF-Led HPC Crash Course Drives Career Development at SC24

Not only did the Department of Energy’s Oak Ridge National Laboratory take home top honors at the 2024 International Conference for High Performance Computing, Networking, Storage, and Analysis (SC24), but the lab’s computing staff also shared career advice and expertise with students eager to enter the world of supercomputing. The…
Jeremy Rumsey
February 21, 2025
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Decoding Atmospheric Effects of Gravity Waves

Researchers at Stanford University, the European Center for Medium-Range Weather Forecasts, or ECMWF, and Oak Ridge National Laboratory used the lab’s Summit supercomputer to better understand atmospheric gravity waves, which influence significant weather patterns that are difficult to forecast. First, the team conducted ultrahigh-resolution climate simulations using the ECMWF Integrated Forecast…
Jeremy Rumsey
December 23, 2024
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Summit Study Fathoms Troubled Waters of Ocean Turbulence

Simulations performed on the Summit supercomputer at the Department of Energy’s Oak Ridge National Laboratory revealed new insights into the role of turbulence in mixing fluids and could open new possibilities for projecting climate change and studying fluid dynamics. The study, published in the Journal of Turbulence, used Summit to…
Matt Lakin
June 13, 2023
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The OLCF’s Matt Sieger Selected to Lead OLCF-6

by Rachel McDowell The Oak Ridge Leadership Computing Facility’s (OLCF’s) Matt Sieger has been named the project director for the OLCF-6 effort. This next OLCF undertaking will plan and build a world-class successor to the OLCF’s still-new exascale system, Frontier. “I am delighted to welcome Matt Sieger as the new…
Coury Turczyn
May 24, 2023
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Charting the New Frontier

The Frontier supercomputer at the U.S. Department of Energy’s Oak Ridge National Laboratory logged a new benchmark this week that further illustrates its world-changing potential and held onto its top ranking as the world’s fastest on the 60th TOP500 list. Frontier set a new speed record for the mixed-precision calculations often used by artificial…
Matt Lakin
November 16, 2022
ScienceTechnology

Weaving wonders

Ounce for ounce, carbon fiber could quickly become the wonder material of the future. The material, already used in a variety of products, boasts densities comparable to plastic, strengths comparable to steel and versatilities comparable to rubber under the right conditions. Its fibers, spun from organic carbon polymer strands thinner…
Matt Lakin
June 14, 2022
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Pushing the new Frontier

The numbers are in, Frontier ranks No. 1, and the researchers of Oak Ridge National Laboratory's National Center for Computational Sciences are finally breathing a few sighs of relief. Teams worked around the clock for months to help prepare the new HPE Cray EX supercomputer and gauge its record-setting exascale…
Matt Lakin
June 8, 2022
People

Philip Roth Named General Chair for SC24

Philip Roth, a group leader in the National Center for Computational Sciences (NCCS) at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory, has been named the general chair of SC24, the 2024 edition of the International Conference for High Performance Computing, Networking, Storage, and Analysis. As general chair,…
Coury Turczyn
January 31, 2022
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The Last User of Titan

Titan, the groundbreaking Cray XK7 supercomputer operated by the Oak Ridge Leadership Computing Facility (OLCF) at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL), was officially decommissioned on August 1. The petascale machine ran countless simulations over its 7 years of service, and its sheer computational power…
Will Wells
January 2, 2020
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OLCF Supercharges Supercomputer Analytics with Apache Kafka

The high-performance computing (HPC) systems at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) are about to vault into the “pubsub” era of real-time streaming analytics. Employing the open-source Apache Kafka event-streaming platform, ORNL’s HPC Core Operations (Ops) Group has built a whole new publish/subscribe system for…
Coury Turczyn
December 16, 2019
Science

Igniting a New Class of Combustion Research

In a farewell nod to Titan, scheduled to be decommissioned in August 2019, we present a short series of features highlighting some of Titan’s impactful contributions to scientific research. The internal combustion engine has been around since the 19th century and remains the most affordable, reliable way to power the…
Katie Elyce Jones
August 1, 2019
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Farewell, Titan

The Cray XK7 Titan supercomputer operated by the Oak Ridge Leadership Computing Facility (OLCF) at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) will be decommissioned on August 1 and disassembled for recycling. Performing up to 27 quadrillion calculations per second, Titan ranked as one of the…
Katie Elyce Jones
June 28, 2019